+#line 2 "perl.c"
/* perl.c
*
- * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by Larry Wall
+ * and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*/
/*
- * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
+ * A ship then new they built for him
+ * of mithril and of elven-glass
+ * --from Bilbo's song of Eärendil
+ *
+ * [p.236 of _The Lord of the Rings_, II/i: "Many Meetings"]
*/
/* This file contains the top-level functions that are used to create, use
* function of the interpreter; that can be found in perlmain.c
*/
-/* PSz 12 Nov 03
- *
- * Be proud that perl(1) may proclaim:
- * Setuid Perl scripts are safer than C programs ...
- * Do not abandon (deprecate) suidperl. Do not advocate C wrappers.
- *
- * The flow was: perl starts, notices script is suid, execs suidperl with same
- * arguments; suidperl opens script, checks many things, sets itself with
- * right UID, execs perl with similar arguments but with script pre-opened on
- * /dev/fd/xxx; perl checks script is as should be and does work. This was
- * insecure: see perlsec(1) for many problems with this approach.
- *
- * The "correct" flow should be: perl starts, opens script and notices it is
- * suid, checks many things, execs suidperl with similar arguments but with
- * script on /dev/fd/xxx; suidperl checks script and /dev/fd/xxx object are
- * same, checks arguments match #! line, sets itself with right UID, execs
- * perl with same arguments; perl checks many things and does work.
- *
- * (Opening the script in perl instead of suidperl, we "lose" scripts that
- * are readable to the target UID but not to the invoker. Where did
- * unreadable scripts work anyway?)
- *
- * For now, suidperl and perl are pretty much the same large and cumbersome
- * program, so suidperl can check its argument list (see comments elsewhere).
- *
- * References:
- * Original bug report:
- * http://bugs.perl.org/index.html?req=bug_id&bug_id=20010322.218
- * http://rt.perl.org/rt2/Ticket/Display.html?id=6511
- * Comments and discussion with Debian:
- * http://bugs.debian.org/203426
- * http://bugs.debian.org/220486
- * Debian Security Advisory DSA 431-1 (does not fully fix problem):
- * http://www.debian.org/security/2004/dsa-431
- * CVE candidate:
- * http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0618
- * Previous versions of this patch sent to perl5-porters:
- * http://www.mail-archive.com/perl5-porters@perl.org/msg71953.html
- * http://www.mail-archive.com/perl5-porters@perl.org/msg75245.html
- * http://www.mail-archive.com/perl5-porters@perl.org/msg75563.html
- * http://www.mail-archive.com/perl5-porters@perl.org/msg75635.html
- *
-Paul Szabo - psz@maths.usyd.edu.au http://www.maths.usyd.edu.au:8000/u/psz/
-School of Mathematics and Statistics University of Sydney 2006 Australia
- *
- */
-/* PSz 13 Nov 03
- * Use truthful, neat, specific error messages.
- * Cannot always hide the truth; security must not depend on doing so.
- */
-
-/* PSz 18 Feb 04
- * Use global(?), thread-local fdscript for easier checks.
- * (I do not understand how we could possibly get a thread race:
- * do not all threads go through the same initialization? Or in
- * fact, are not threads started only after we get the script and
- * so know what to do? Oh well, make things super-safe...)
- */
-
#include "EXTERN.h"
#define PERL_IN_PERL_C
#include "perl.h"
#include "patchlevel.h" /* for local_patches */
+#include "XSUB.h"
#ifdef NETWARE
#include "nwutil.h"
-char *nw_get_sitelib(const char *pl);
#endif
/* XXX If this causes problems, set i_unistd=undef in the hint file. */
#include <unistd.h>
#endif
+#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
+# ifdef I_SYS_WAIT
+# include <sys/wait.h>
+# endif
+# ifdef I_SYSUIO
+# include <sys/uio.h>
+# endif
+
+union control_un {
+ struct cmsghdr cm;
+ char control[CMSG_SPACE(sizeof(int))];
+};
+
+#endif
+
#ifdef __BEOS__
# define HZ 1000000
#endif
static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen);
-#ifdef IAMSUID
-#ifndef DOSUID
-#define DOSUID
-#endif
-#endif /* IAMSUID */
-
#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
-#ifdef DOSUID
-#undef DOSUID
-#endif
+/* Drop everything. Heck, don't even try to call it */
+# define validate_suid(validarg, scriptname, fdscript, suidscript, linestr_sv, rsfp) NOOP
+#else
+/* Drop almost everything */
+# define validate_suid(validarg, scriptname, fdscript, suidscript, linestr_sv, rsfp) S_validate_suid(aTHX_ rsfp)
#endif
+#define CALL_BODY_EVAL(myop) \
+ if (PL_op == (myop)) \
+ PL_op = PL_ppaddr[OP_ENTEREVAL](aTHX); \
+ if (PL_op) \
+ CALLRUNOPS(aTHX);
+
+#define CALL_BODY_SUB(myop) \
+ if (PL_op == (myop)) \
+ PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); \
+ if (PL_op) \
+ CALLRUNOPS(aTHX);
+
+#define CALL_LIST_BODY(cv) \
+ PUSHMARK(PL_stack_sp); \
+ call_sv(MUTABLE_SV((cv)), G_EVAL|G_DISCARD);
+
static void
S_init_tls_and_interp(PerlInterpreter *my_perl)
{
ALLOC_THREAD_KEY;
PERL_SET_THX(my_perl);
OP_REFCNT_INIT;
+ HINTS_REFCNT_INIT;
MUTEX_INIT(&PL_dollarzero_mutex);
+ MUTEX_INIT(&PL_my_ctx_mutex);
# endif
}
- else {
+#if defined(USE_ITHREADS)
+ else
+#else
+ /* This always happens for non-ithreads */
+#endif
+ {
PERL_SET_THX(my_perl);
}
}
+
+/* these implement the PERL_SYS_INIT, PERL_SYS_INIT3, PERL_SYS_TERM macros */
+
+void
+Perl_sys_init(int* argc, char*** argv)
+{
+ dVAR;
+
+ PERL_ARGS_ASSERT_SYS_INIT;
+
+ PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
+ PERL_UNUSED_ARG(argv);
+ PERL_SYS_INIT_BODY(argc, argv);
+}
+
+void
+Perl_sys_init3(int* argc, char*** argv, char*** env)
+{
+ dVAR;
+
+ PERL_ARGS_ASSERT_SYS_INIT3;
+
+ PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
+ PERL_UNUSED_ARG(argv);
+ PERL_UNUSED_ARG(env);
+ PERL_SYS_INIT3_BODY(argc, argv, env);
+}
+
+void
+Perl_sys_term()
+{
+ dVAR;
+ if (!PL_veto_cleanup) {
+ PERL_SYS_TERM_BODY();
+ }
+}
+
+
#ifdef PERL_IMPLICIT_SYS
PerlInterpreter *
perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS,
struct IPerlProc* ipP)
{
PerlInterpreter *my_perl;
- /* New() needs interpreter, so call malloc() instead */
+
+ PERL_ARGS_ASSERT_PERL_ALLOC_USING;
+
+ /* Newx() needs interpreter, so call malloc() instead */
my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter));
S_init_tls_and_interp(my_perl);
Zero(my_perl, 1, PerlInterpreter);
PL_Dir = ipD;
PL_Sock = ipS;
PL_Proc = ipP;
+ INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl);
return my_perl;
}
{
PerlInterpreter *my_perl;
- /* New() needs interpreter, so call malloc() instead */
+ /* Newx() needs interpreter, so call malloc() instead */
my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter));
S_init_tls_and_interp(my_perl);
+#ifndef PERL_TRACK_MEMPOOL
return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter);
+#else
+ Zero(my_perl, 1, PerlInterpreter);
+ INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl);
+ return my_perl;
+#endif
}
#endif /* PERL_IMPLICIT_SYS */
perl_construct(pTHXx)
{
dVAR;
+
+ PERL_ARGS_ASSERT_PERL_CONSTRUCT;
+
#ifdef MULTIPLICITY
init_interp();
PL_perl_destruct_level = 1;
#else
+ PERL_UNUSED_ARG(my_perl);
if (PL_perl_destruct_level > 0)
init_interp();
#endif
- /* Init the real globals (and main thread)? */
- if (!PL_linestr) {
- PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
-
- PL_linestr = NEWSV(65,79);
- sv_upgrade(PL_linestr,SVt_PVIV);
+ PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
- if (!SvREADONLY(&PL_sv_undef)) {
- /* set read-only and try to insure than we wont see REFCNT==0
- very often */
+ /* set read-only and try to insure than we wont see REFCNT==0
+ very often */
- SvREADONLY_on(&PL_sv_undef);
- SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
+ SvREADONLY_on(&PL_sv_undef);
+ SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
- sv_setpv(&PL_sv_no,PL_No);
- /* value lookup in void context - happens to have the side effect
- of caching the numeric forms. */
- SvIV(&PL_sv_no);
- SvNV(&PL_sv_no);
- SvREADONLY_on(&PL_sv_no);
- SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
+ sv_setpv(&PL_sv_no,PL_No);
+ /* value lookup in void context - happens to have the side effect
+ of caching the numeric forms. However, as &PL_sv_no doesn't contain
+ a string that is a valid numer, we have to turn the public flags by
+ hand: */
+ SvNV(&PL_sv_no);
+ SvIV(&PL_sv_no);
+ SvIOK_on(&PL_sv_no);
+ SvNOK_on(&PL_sv_no);
+ SvREADONLY_on(&PL_sv_no);
+ SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
- sv_setpv(&PL_sv_yes,PL_Yes);
- SvIV(&PL_sv_yes);
- SvNV(&PL_sv_yes);
- SvREADONLY_on(&PL_sv_yes);
- SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
+ sv_setpv(&PL_sv_yes,PL_Yes);
+ SvNV(&PL_sv_yes);
+ SvIV(&PL_sv_yes);
+ SvREADONLY_on(&PL_sv_yes);
+ SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
- SvREADONLY_on(&PL_sv_placeholder);
- SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2;
- }
+ SvREADONLY_on(&PL_sv_placeholder);
+ SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2;
- PL_sighandlerp = Perl_sighandler;
- PL_pidstatus = newHV();
- }
+ PL_sighandlerp = (Sighandler_t) Perl_sighandler;
+#ifdef PERL_USES_PL_PIDSTATUS
+ PL_pidstatus = newHV();
+#endif
- PL_rs = newSVpvn("\n", 1);
+ PL_rs = newSVpvs("\n");
init_stacks();
init_ids();
- PL_lex_state = LEX_NOTPARSING;
JMPENV_BOOTSTRAP;
STATUS_ALL_SUCCESS;
PL_fdpid = newAV(); /* for remembering popen pids by fd */
PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
- PL_errors = newSVpvn("",0);
- sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */
- sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */
- sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */
+ PL_errors = newSVpvs("");
+ sv_setpvs(PERL_DEBUG_PAD(0), ""); /* For regex debugging. */
+ sv_setpvs(PERL_DEBUG_PAD(1), ""); /* ext/re needs these */
+ sv_setpvs(PERL_DEBUG_PAD(2), ""); /* even without DEBUGGING. */
#ifdef USE_ITHREADS
- PL_regex_padav = newAV();
- av_push(PL_regex_padav,(SV*)newAV()); /* First entry is an array of empty elements */
+ /* First entry is a list of empty elements. It needs to be initialised
+ else all hell breaks loose in S_find_uninit_var(). */
+ Perl_av_create_and_push(aTHX_ &PL_regex_padav, newSVpvs(""));
PL_regex_pad = AvARRAY(PL_regex_padav);
#endif
#ifdef USE_REENTRANT_API
PL_stashcache = newHV();
- PL_patchlevel = newSVpv(
- Perl_form(aTHX_ "%d.%d.%d",
- (int)PERL_REVISION,
- (int)PERL_VERSION,
- (int)PERL_SUBVERSION ), 0
- );
+ PL_patchlevel = newSVpvs("v" PERL_VERSION_STRING);
#ifdef HAS_MMAP
if (!PL_mmap_page_size) {
# endif
if ((long) PL_mmap_page_size < 0) {
if (errno) {
- SV *error = ERRSV;
- char *msg;
- STRLEN n_a;
- (void) SvUPGRADE(error, SVt_PV);
- msg = SvPVx(error, n_a);
- Perl_croak(aTHX_ "panic: sysconf: %s", msg);
+ SV * const error = ERRSV;
+ SvUPGRADE(error, SVt_PV);
+ Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error));
}
else
Perl_croak(aTHX_ "panic: sysconf: pagesize unknown");
PL_timesbase.tms_cstime = 0;
#endif
+ PL_osname = Perl_savepvn(aTHX_ STR_WITH_LEN(OSNAME));
+
+ PL_registered_mros = newHV();
+ /* Start with 1 bucket, for DFS. It's unlikely we'll need more. */
+ HvMAX(PL_registered_mros) = 0;
+
ENTER;
}
int
Perl_nothreadhook(pTHX)
{
+ PERL_UNUSED_CONTEXT;
return 0;
}
+#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
+void
+Perl_dump_sv_child(pTHX_ SV *sv)
+{
+ ssize_t got;
+ const int sock = PL_dumper_fd;
+ const int debug_fd = PerlIO_fileno(Perl_debug_log);
+ union control_un control;
+ struct msghdr msg;
+ struct iovec vec[2];
+ struct cmsghdr *cmptr;
+ int returned_errno;
+ unsigned char buffer[256];
+
+ PERL_ARGS_ASSERT_DUMP_SV_CHILD;
+
+ if(sock == -1 || debug_fd == -1)
+ return;
+
+ PerlIO_flush(Perl_debug_log);
+
+ /* All these shenanigans are to pass a file descriptor over to our child for
+ it to dump out to. We can't let it hold open the file descriptor when it
+ forks, as the file descriptor it will dump to can turn out to be one end
+ of pipe that some other process will wait on for EOF. (So as it would
+ be open, the wait would be forever.) */
+
+ msg.msg_control = control.control;
+ msg.msg_controllen = sizeof(control.control);
+ /* We're a connected socket so we don't need a destination */
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ msg.msg_iov = vec;
+ msg.msg_iovlen = 1;
+
+ cmptr = CMSG_FIRSTHDR(&msg);
+ cmptr->cmsg_len = CMSG_LEN(sizeof(int));
+ cmptr->cmsg_level = SOL_SOCKET;
+ cmptr->cmsg_type = SCM_RIGHTS;
+ *((int *)CMSG_DATA(cmptr)) = 1;
+
+ vec[0].iov_base = (void*)&sv;
+ vec[0].iov_len = sizeof(sv);
+ got = sendmsg(sock, &msg, 0);
+
+ if(got < 0) {
+ perror("Debug leaking scalars parent sendmsg failed");
+ abort();
+ }
+ if(got < sizeof(sv)) {
+ perror("Debug leaking scalars parent short sendmsg");
+ abort();
+ }
+
+ /* Return protocol is
+ int: errno value
+ unsigned char: length of location string (0 for empty)
+ unsigned char*: string (not terminated)
+ */
+ vec[0].iov_base = (void*)&returned_errno;
+ vec[0].iov_len = sizeof(returned_errno);
+ vec[1].iov_base = buffer;
+ vec[1].iov_len = 1;
+
+ got = readv(sock, vec, 2);
+
+ if(got < 0) {
+ perror("Debug leaking scalars parent read failed");
+ PerlIO_flush(PerlIO_stderr());
+ abort();
+ }
+ if(got < sizeof(returned_errno) + 1) {
+ perror("Debug leaking scalars parent short read");
+ PerlIO_flush(PerlIO_stderr());
+ abort();
+ }
+
+ if (*buffer) {
+ got = read(sock, buffer + 1, *buffer);
+ if(got < 0) {
+ perror("Debug leaking scalars parent read 2 failed");
+ PerlIO_flush(PerlIO_stderr());
+ abort();
+ }
+
+ if(got < *buffer) {
+ perror("Debug leaking scalars parent short read 2");
+ PerlIO_flush(PerlIO_stderr());
+ abort();
+ }
+ }
+
+ if (returned_errno || *buffer) {
+ Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno"
+ " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1,
+ returned_errno, strerror(returned_errno));
+ }
+}
+#endif
+
/*
=for apidoc perl_destruct
perl_destruct(pTHXx)
{
dVAR;
- volatile int destruct_level; /* 0=none, 1=full, 2=full with checks */
+ VOL signed char destruct_level; /* see possible values in intrpvar.h */
HV *hv;
+#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
+ pid_t child;
+#endif
+
+ PERL_ARGS_ASSERT_PERL_DESTRUCT;
+#ifndef MULTIPLICITY
+ PERL_UNUSED_ARG(my_perl);
+#endif
+
+ assert(PL_scopestack_ix == 1);
/* wait for all pseudo-forked children to finish */
PERL_WAIT_FOR_CHILDREN;
destruct_level = PL_perl_destruct_level;
#ifdef DEBUGGING
{
- const char *s;
- if ((s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"))) {
+ const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL");
+ if (s) {
const int i = atoi(s);
if (destruct_level < i)
destruct_level = i;
int x = 0;
JMPENV_PUSH(x);
+ PERL_UNUSED_VAR(x);
if (PL_endav && !PL_minus_c)
call_list(PL_scopestack_ix, PL_endav);
JMPENV_POP;
}
LEAVE;
FREETMPS;
+ assert(PL_scopestack_ix == 0);
/* Need to flush since END blocks can produce output */
my_fflush_all();
if (CALL_FPTR(PL_threadhook)(aTHX)) {
/* Threads hook has vetoed further cleanup */
- return STATUS_NATIVE_EXPORT;
+ PL_veto_cleanup = TRUE;
+ return STATUS_EXIT;
}
+#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
+ if (destruct_level != 0) {
+ /* Fork here to create a child. Our child's job is to preserve the
+ state of scalars prior to destruction, so that we can instruct it
+ to dump any scalars that we later find have leaked.
+ There's no subtlety in this code - it assumes POSIX, and it doesn't
+ fail gracefully */
+ int fd[2];
+
+ if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) {
+ perror("Debug leaking scalars socketpair failed");
+ abort();
+ }
+
+ child = fork();
+ if(child == -1) {
+ perror("Debug leaking scalars fork failed");
+ abort();
+ }
+ if (!child) {
+ /* We are the child */
+ const int sock = fd[1];
+ const int debug_fd = PerlIO_fileno(Perl_debug_log);
+ int f;
+ const char *where;
+ /* Our success message is an integer 0, and a char 0 */
+ static const char success[sizeof(int) + 1] = {0};
+
+ close(fd[0]);
+
+ /* We need to close all other file descriptors otherwise we end up
+ with interesting hangs, where the parent closes its end of a
+ pipe, and sits waiting for (another) child to terminate. Only
+ that child never terminates, because it never gets EOF, because
+ we also have the far end of the pipe open. We even need to
+ close the debugging fd, because sometimes it happens to be one
+ end of a pipe, and a process is waiting on the other end for
+ EOF. Normally it would be closed at some point earlier in
+ destruction, but if we happen to cause the pipe to remain open,
+ EOF never occurs, and we get an infinite hang. Hence all the
+ games to pass in a file descriptor if it's actually needed. */
+
+ f = sysconf(_SC_OPEN_MAX);
+ if(f < 0) {
+ where = "sysconf failed";
+ goto abort;
+ }
+ while (f--) {
+ if (f == sock)
+ continue;
+ close(f);
+ }
+
+ while (1) {
+ SV *target;
+ union control_un control;
+ struct msghdr msg;
+ struct iovec vec[1];
+ struct cmsghdr *cmptr;
+ ssize_t got;
+ int got_fd;
+
+ msg.msg_control = control.control;
+ msg.msg_controllen = sizeof(control.control);
+ /* We're a connected socket so we don't need a source */
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ msg.msg_iov = vec;
+ msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]);
+
+ vec[0].iov_base = (void*)⌖
+ vec[0].iov_len = sizeof(target);
+
+ got = recvmsg(sock, &msg, 0);
+
+ if(got == 0)
+ break;
+ if(got < 0) {
+ where = "recv failed";
+ goto abort;
+ }
+ if(got < sizeof(target)) {
+ where = "short recv";
+ goto abort;
+ }
+
+ if(!(cmptr = CMSG_FIRSTHDR(&msg))) {
+ where = "no cmsg";
+ goto abort;
+ }
+ if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) {
+ where = "wrong cmsg_len";
+ goto abort;
+ }
+ if(cmptr->cmsg_level != SOL_SOCKET) {
+ where = "wrong cmsg_level";
+ goto abort;
+ }
+ if(cmptr->cmsg_type != SCM_RIGHTS) {
+ where = "wrong cmsg_type";
+ goto abort;
+ }
+
+ got_fd = *(int*)CMSG_DATA(cmptr);
+ /* For our last little bit of trickery, put the file descriptor
+ back into Perl_debug_log, as if we never actually closed it
+ */
+ if(got_fd != debug_fd) {
+ if (dup2(got_fd, debug_fd) == -1) {
+ where = "dup2";
+ goto abort;
+ }
+ }
+ sv_dump(target);
+
+ PerlIO_flush(Perl_debug_log);
+
+ got = write(sock, &success, sizeof(success));
+
+ if(got < 0) {
+ where = "write failed";
+ goto abort;
+ }
+ if(got < sizeof(success)) {
+ where = "short write";
+ goto abort;
+ }
+ }
+ _exit(0);
+ abort:
+ {
+ int send_errno = errno;
+ unsigned char length = (unsigned char) strlen(where);
+ struct iovec failure[3] = {
+ {(void*)&send_errno, sizeof(send_errno)},
+ {&length, 1},
+ {(void*)where, length}
+ };
+ int got = writev(sock, failure, 3);
+ /* Bad news travels fast. Faster than data. We'll get a SIGPIPE
+ in the parent if we try to read from the socketpair after the
+ child has exited, even if there was data to read.
+ So sleep a bit to give the parent a fighting chance of
+ reading the data. */
+ sleep(2);
+ _exit((got == -1) ? errno : 0);
+ }
+ /* End of child. */
+ }
+ PL_dumper_fd = fd[0];
+ close(fd[1]);
+ }
+#endif
+
/* We must account for everything. */
/* Destroy the main CV and syntax tree */
+ /* Do this now, because destroying ops can cause new SVs to be generated
+ in Perl_pad_swipe, and when running with -DDEBUG_LEAKING_SCALARS they
+ PL_curcop to point to a valid op from which the filename structure
+ member is copied. */
+ PL_curcop = &PL_compiling;
if (PL_main_root) {
/* ensure comppad/curpad to refer to main's pad */
if (CvPADLIST(PL_main_cv)) {
PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1);
}
op_free(PL_main_root);
- PL_main_root = Nullop;
+ PL_main_root = NULL;
}
- PL_curcop = &PL_compiling;
- PL_main_start = Nullop;
+ PL_main_start = NULL;
SvREFCNT_dec(PL_main_cv);
- PL_main_cv = Nullcv;
+ PL_main_cv = NULL;
PL_dirty = TRUE;
/* Tell PerlIO we are about to tear things apart in case
*/
sv_clean_objs();
PL_sv_objcount = 0;
+ if (PL_defoutgv && !SvREFCNT(PL_defoutgv))
+ PL_defoutgv = NULL; /* may have been freed */
}
/* unhook hooks which will soon be, or use, destroyed data */
SvREFCNT_dec(PL_warnhook);
- PL_warnhook = Nullsv;
+ PL_warnhook = NULL;
SvREFCNT_dec(PL_diehook);
- PL_diehook = Nullsv;
+ PL_diehook = NULL;
/* call exit list functions */
while (PL_exitlistlen-- > 0)
PL_exitlist = NULL;
PL_exitlistlen = 0;
- if (destruct_level == 0){
-
- DEBUG_P(debprofdump());
-
-#if defined(PERLIO_LAYERS)
- /* No more IO - including error messages ! */
- PerlIO_cleanup(aTHX);
-#endif
-
- /* The exit() function will do everything that needs doing. */
- return STATUS_NATIVE_EXPORT;
- }
+ SvREFCNT_dec(PL_registered_mros);
/* jettison our possibly duplicated environment */
/* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied
#endif
#endif /* !PERL_MICRO */
+ if (destruct_level == 0) {
+
+ DEBUG_P(debprofdump());
+
+#if defined(PERLIO_LAYERS)
+ /* No more IO - including error messages ! */
+ PerlIO_cleanup(aTHX);
+#endif
+
+ CopFILE_free(&PL_compiling);
+ CopSTASH_free(&PL_compiling);
+
+ /* The exit() function will do everything that needs doing. */
+ return STATUS_EXIT;
+ }
+
/* reset so print() ends up where we expect */
- setdefout(Nullgv);
+ setdefout(NULL);
#ifdef USE_ITHREADS
/* the syntax tree is shared between clones
* REGEXPs in the parent interpreter
* we need to manually ReREFCNT_dec for the clones
*/
- {
- I32 i = AvFILLp(PL_regex_padav) + 1;
- SV **ary = AvARRAY(PL_regex_padav);
-
- while (i) {
- SV *resv = ary[--i];
- REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv));
-
- if (SvFLAGS(resv) & SVf_BREAK) {
- /* this is PL_reg_curpm, already freed
- * flag is set in regexec.c:S_regtry
- */
- SvFLAGS(resv) &= ~SVf_BREAK;
- }
- else if(SvREPADTMP(resv)) {
- SvREPADTMP_off(resv);
- }
- else {
- ReREFCNT_dec(re);
- }
- }
- }
SvREFCNT_dec(PL_regex_padav);
- PL_regex_padav = Nullav;
+ PL_regex_padav = NULL;
PL_regex_pad = NULL;
#endif
- SvREFCNT_dec((SV*) PL_stashcache);
+ SvREFCNT_dec(MUTABLE_SV(PL_stashcache));
PL_stashcache = NULL;
/* loosen bonds of global variables */
- if(PL_rsfp) {
- (void)PerlIO_close(PL_rsfp);
- PL_rsfp = Nullfp;
+ /* XXX can PL_parser still be non-null here? */
+ if(PL_parser && PL_parser->rsfp) {
+ (void)PerlIO_close(PL_parser->rsfp);
+ PL_parser->rsfp = NULL;
}
- /* Filters for program text */
- SvREFCNT_dec(PL_rsfp_filters);
- PL_rsfp_filters = Nullav;
+ if (PL_minus_F) {
+ Safefree(PL_splitstr);
+ PL_splitstr = NULL;
+ }
/* switches */
- PL_preprocess = FALSE;
PL_minus_n = FALSE;
PL_minus_p = FALSE;
PL_minus_l = FALSE;
PL_unsafe = FALSE;
Safefree(PL_inplace);
- PL_inplace = Nullch;
+ PL_inplace = NULL;
SvREFCNT_dec(PL_patchlevel);
if (PL_e_script) {
SvREFCNT_dec(PL_e_script);
- PL_e_script = Nullsv;
+ PL_e_script = NULL;
}
PL_perldb = 0;
/* magical thingies */
- SvREFCNT_dec(PL_ofs_sv); /* $, */
- PL_ofs_sv = Nullsv;
+ SvREFCNT_dec(PL_ofsgv); /* *, */
+ PL_ofsgv = NULL;
SvREFCNT_dec(PL_ors_sv); /* $\ */
- PL_ors_sv = Nullsv;
+ PL_ors_sv = NULL;
SvREFCNT_dec(PL_rs); /* $/ */
- PL_rs = Nullsv;
+ PL_rs = NULL;
- PL_multiline = 0; /* $* */
Safefree(PL_osname); /* $^O */
- PL_osname = Nullch;
+ PL_osname = NULL;
SvREFCNT_dec(PL_statname);
- PL_statname = Nullsv;
- PL_statgv = Nullgv;
+ PL_statname = NULL;
+ PL_statgv = NULL;
/* defgv, aka *_ should be taken care of elsewhere */
/* clean up after study() */
SvREFCNT_dec(PL_lastscream);
- PL_lastscream = Nullsv;
+ PL_lastscream = NULL;
Safefree(PL_screamfirst);
PL_screamfirst = 0;
Safefree(PL_screamnext);
/* float buffer */
Safefree(PL_efloatbuf);
- PL_efloatbuf = Nullch;
+ PL_efloatbuf = NULL;
PL_efloatsize = 0;
/* startup and shutdown function lists */
SvREFCNT_dec(PL_endav);
SvREFCNT_dec(PL_checkav);
SvREFCNT_dec(PL_checkav_save);
+ SvREFCNT_dec(PL_unitcheckav);
+ SvREFCNT_dec(PL_unitcheckav_save);
SvREFCNT_dec(PL_initav);
- PL_beginav = Nullav;
- PL_beginav_save = Nullav;
- PL_endav = Nullav;
- PL_checkav = Nullav;
- PL_checkav_save = Nullav;
- PL_initav = Nullav;
+ PL_beginav = NULL;
+ PL_beginav_save = NULL;
+ PL_endav = NULL;
+ PL_checkav = NULL;
+ PL_checkav_save = NULL;
+ PL_unitcheckav = NULL;
+ PL_unitcheckav_save = NULL;
+ PL_initav = NULL;
/* shortcuts just get cleared */
- PL_envgv = Nullgv;
- PL_incgv = Nullgv;
- PL_hintgv = Nullgv;
- PL_errgv = Nullgv;
- PL_argvgv = Nullgv;
- PL_argvoutgv = Nullgv;
- PL_stdingv = Nullgv;
- PL_stderrgv = Nullgv;
- PL_last_in_gv = Nullgv;
- PL_replgv = Nullgv;
- PL_DBgv = Nullgv;
- PL_DBline = Nullgv;
- PL_DBsub = Nullgv;
- PL_DBsingle = Nullsv;
- PL_DBtrace = Nullsv;
- PL_DBsignal = Nullsv;
- PL_DBassertion = Nullsv;
- PL_DBcv = Nullcv;
- PL_dbargs = Nullav;
- PL_debstash = Nullhv;
+ PL_envgv = NULL;
+ PL_incgv = NULL;
+ PL_hintgv = NULL;
+ PL_errgv = NULL;
+ PL_argvgv = NULL;
+ PL_argvoutgv = NULL;
+ PL_stdingv = NULL;
+ PL_stderrgv = NULL;
+ PL_last_in_gv = NULL;
+ PL_replgv = NULL;
+ PL_DBgv = NULL;
+ PL_DBline = NULL;
+ PL_DBsub = NULL;
+ PL_DBsingle = NULL;
+ PL_DBtrace = NULL;
+ PL_DBsignal = NULL;
+ PL_DBcv = NULL;
+ PL_dbargs = NULL;
+ PL_debstash = NULL;
SvREFCNT_dec(PL_argvout_stack);
- PL_argvout_stack = Nullav;
+ PL_argvout_stack = NULL;
SvREFCNT_dec(PL_modglobal);
- PL_modglobal = Nullhv;
+ PL_modglobal = NULL;
SvREFCNT_dec(PL_preambleav);
- PL_preambleav = Nullav;
+ PL_preambleav = NULL;
SvREFCNT_dec(PL_subname);
- PL_subname = Nullsv;
- SvREFCNT_dec(PL_linestr);
- PL_linestr = Nullsv;
+ PL_subname = NULL;
+#ifdef PERL_USES_PL_PIDSTATUS
SvREFCNT_dec(PL_pidstatus);
- PL_pidstatus = Nullhv;
+ PL_pidstatus = NULL;
+#endif
SvREFCNT_dec(PL_toptarget);
- PL_toptarget = Nullsv;
+ PL_toptarget = NULL;
SvREFCNT_dec(PL_bodytarget);
- PL_bodytarget = Nullsv;
- PL_formtarget = Nullsv;
+ PL_bodytarget = NULL;
+ PL_formtarget = NULL;
/* free locale stuff */
#ifdef USE_LOCALE_COLLATE
Safefree(PL_collation_name);
- PL_collation_name = Nullch;
+ PL_collation_name = NULL;
#endif
#ifdef USE_LOCALE_NUMERIC
Safefree(PL_numeric_name);
- PL_numeric_name = Nullch;
+ PL_numeric_name = NULL;
SvREFCNT_dec(PL_numeric_radix_sv);
- PL_numeric_radix_sv = Nullsv;
+ PL_numeric_radix_sv = NULL;
#endif
/* clear utf8 character classes */
SvREFCNT_dec(PL_utf8_alnum);
- SvREFCNT_dec(PL_utf8_alnumc);
SvREFCNT_dec(PL_utf8_ascii);
SvREFCNT_dec(PL_utf8_alpha);
SvREFCNT_dec(PL_utf8_space);
SvREFCNT_dec(PL_utf8_tofold);
SvREFCNT_dec(PL_utf8_idstart);
SvREFCNT_dec(PL_utf8_idcont);
- PL_utf8_alnum = Nullsv;
- PL_utf8_alnumc = Nullsv;
- PL_utf8_ascii = Nullsv;
- PL_utf8_alpha = Nullsv;
- PL_utf8_space = Nullsv;
- PL_utf8_cntrl = Nullsv;
- PL_utf8_graph = Nullsv;
- PL_utf8_digit = Nullsv;
- PL_utf8_upper = Nullsv;
- PL_utf8_lower = Nullsv;
- PL_utf8_print = Nullsv;
- PL_utf8_punct = Nullsv;
- PL_utf8_xdigit = Nullsv;
- PL_utf8_mark = Nullsv;
- PL_utf8_toupper = Nullsv;
- PL_utf8_totitle = Nullsv;
- PL_utf8_tolower = Nullsv;
- PL_utf8_tofold = Nullsv;
- PL_utf8_idstart = Nullsv;
- PL_utf8_idcont = Nullsv;
+ PL_utf8_alnum = NULL;
+ PL_utf8_ascii = NULL;
+ PL_utf8_alpha = NULL;
+ PL_utf8_space = NULL;
+ PL_utf8_cntrl = NULL;
+ PL_utf8_graph = NULL;
+ PL_utf8_digit = NULL;
+ PL_utf8_upper = NULL;
+ PL_utf8_lower = NULL;
+ PL_utf8_print = NULL;
+ PL_utf8_punct = NULL;
+ PL_utf8_xdigit = NULL;
+ PL_utf8_mark = NULL;
+ PL_utf8_toupper = NULL;
+ PL_utf8_totitle = NULL;
+ PL_utf8_tolower = NULL;
+ PL_utf8_tofold = NULL;
+ PL_utf8_idstart = NULL;
+ PL_utf8_idcont = NULL;
if (!specialWARN(PL_compiling.cop_warnings))
- SvREFCNT_dec(PL_compiling.cop_warnings);
- PL_compiling.cop_warnings = Nullsv;
- if (!specialCopIO(PL_compiling.cop_io))
- SvREFCNT_dec(PL_compiling.cop_io);
- PL_compiling.cop_io = Nullsv;
+ PerlMemShared_free(PL_compiling.cop_warnings);
+ PL_compiling.cop_warnings = NULL;
+ Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash);
+ PL_compiling.cop_hints_hash = NULL;
CopFILE_free(&PL_compiling);
CopSTASH_free(&PL_compiling);
PL_defstash = 0;
SvREFCNT_dec(hv);
SvREFCNT_dec(PL_curstname);
- PL_curstname = Nullsv;
+ PL_curstname = NULL;
/* clear queued errors */
SvREFCNT_dec(PL_errors);
- PL_errors = Nullsv;
+ PL_errors = NULL;
+
+ SvREFCNT_dec(PL_isarev);
FREETMPS;
- if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) {
+ if (destruct_level >= 2) {
if (PL_scopestack_ix != 0)
- Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
- "Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
- (long)PL_scopestack_ix);
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),
+ "Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
+ (long)PL_scopestack_ix);
if (PL_savestack_ix != 0)
- Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
- "Unbalanced saves: %ld more saves than restores\n",
- (long)PL_savestack_ix);
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),
+ "Unbalanced saves: %ld more saves than restores\n",
+ (long)PL_savestack_ix);
if (PL_tmps_floor != -1)
- Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n",
- (long)PL_tmps_floor + 1);
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n",
+ (long)PL_tmps_floor + 1);
if (cxstack_ix != -1)
- Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n",
- (long)cxstack_ix + 1);
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n",
+ (long)cxstack_ix + 1);
}
/* Now absolutely destruct everything, somehow or other, loops or no. */
- SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */
- SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
/* the 2 is for PL_fdpid and PL_strtab */
- while (PL_sv_count > 2 && sv_clean_all())
+ while (sv_clean_all() > 2)
;
- SvFLAGS(PL_fdpid) &= ~SVTYPEMASK;
- SvFLAGS(PL_fdpid) |= SVt_PVAV;
- SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
- SvFLAGS(PL_strtab) |= SVt_PVHV;
-
AvREAL_off(PL_fdpid); /* no surviving entries */
SvREFCNT_dec(PL_fdpid); /* needed in io_close() */
- PL_fdpid = Nullav;
+ PL_fdpid = NULL;
#ifdef HAVE_INTERP_INTERN
sys_intern_clear();
{
/* Yell and reset the HeVAL() slots that are still holding refcounts,
* so that sv_free() won't fail on them.
+ * Now that the global string table is using a single hunk of memory
+ * for both HE and HEK, we either need to explicitly unshare it the
+ * correct way, or actually free things here.
*/
- I32 riter;
- I32 max;
- HE *hent;
- HE **array;
-
- riter = 0;
- max = HvMAX(PL_strtab);
- array = HvARRAY(PL_strtab);
- hent = array[0];
+ I32 riter = 0;
+ const I32 max = HvMAX(PL_strtab);
+ HE * const * const array = HvARRAY(PL_strtab);
+ HE *hent = array[0];
+
for (;;) {
if (hent && ckWARN_d(WARN_INTERNAL)) {
+ HE * const next = HeNEXT(hent);
Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
- "Unbalanced string table refcount: (%d) for \"%s\"",
- HeVAL(hent) - Nullsv, HeKEY(hent));
- HeVAL(hent) = Nullsv;
- hent = HeNEXT(hent);
+ "Unbalanced string table refcount: (%ld) for \"%s\"",
+ (long)hent->he_valu.hent_refcount, HeKEY(hent));
+ Safefree(hent);
+ hent = next;
}
if (!hent) {
if (++riter > max)
hent = array[riter];
}
}
+
+ Safefree(array);
+ HvARRAY(PL_strtab) = 0;
+ HvTOTALKEYS(PL_strtab) = 0;
+ HvFILL(PL_strtab) = 0;
}
SvREFCNT_dec(PL_strtab);
#ifdef USE_ITHREADS
- /* free the pointer table used for cloning */
+ /* free the pointer tables used for cloning */
ptr_table_free(PL_ptr_table);
PL_ptr_table = (PTR_TBL_t*)NULL;
#endif
SV* sv;
register SV* svend;
- for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
+ for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) {
svend = &sva[SvREFCNT(sva)];
for (sv = sva + 1; sv < svend; ++sv) {
if (SvTYPE(sv) != SVTYPEMASK) {
PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p"
" flags=0x%"UVxf
" refcnt=%"UVuf pTHX__FORMAT "\n"
- "\tallocated at %s:%d %s %s%s\n",
- sv, sv->sv_flags, sv->sv_refcnt pTHX__VALUE,
+ "\tallocated at %s:%d %s %s%s; serial %"UVuf"\n",
+ (void*)sv, (UV)sv->sv_flags, (UV)sv->sv_refcnt
+ pTHX__VALUE,
sv->sv_debug_file ? sv->sv_debug_file : "(unknown)",
sv->sv_debug_line,
sv->sv_debug_inpad ? "for" : "by",
sv->sv_debug_optype ?
PL_op_name[sv->sv_debug_optype]: "(none)",
- sv->sv_debug_cloned ? " (cloned)" : ""
+ sv->sv_debug_cloned ? " (cloned)" : "",
+ sv->sv_debug_serial
);
+#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
+ Perl_dump_sv_child(aTHX_ sv);
+#endif
}
}
}
}
+#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
+ {
+ int status;
+ fd_set rset;
+ /* Wait for up to 4 seconds for child to terminate.
+ This seems to be the least effort way of timing out on reaping
+ its exit status. */
+ struct timeval waitfor = {4, 0};
+ int sock = PL_dumper_fd;
+
+ shutdown(sock, 1);
+ FD_ZERO(&rset);
+ FD_SET(sock, &rset);
+ select(sock + 1, &rset, NULL, NULL, &waitfor);
+ waitpid(child, &status, WNOHANG);
+ close(sock);
+ }
+#endif
+#endif
+#ifdef DEBUG_LEAKING_SCALARS_ABORT
+ if (PL_sv_count)
+ abort();
#endif
PL_sv_count = 0;
+#ifdef PERL_DEBUG_READONLY_OPS
+ free(PL_slabs);
+ PL_slabs = NULL;
+ PL_slab_count = 0;
+#endif
#if defined(PERLIO_LAYERS)
/* No more IO - including error messages ! */
#endif
/* sv_undef needs to stay immortal until after PerlIO_cleanup
- as currently layers use it rather than Nullsv as a marker
+ as currently layers use it rather than NULL as a marker
for no arg - and will try and SvREFCNT_dec it.
*/
SvREFCNT(&PL_sv_undef) = 0;
SvREADONLY_off(&PL_sv_undef);
Safefree(PL_origfilename);
- PL_origfilename = Nullch;
+ PL_origfilename = NULL;
Safefree(PL_reg_start_tmp);
PL_reg_start_tmp = (char**)NULL;
PL_reg_start_tmpl = 0;
- if (PL_reg_curpm)
- Safefree(PL_reg_curpm);
+ Safefree(PL_reg_curpm);
Safefree(PL_reg_poscache);
free_tied_hv_pool();
Safefree(PL_op_mask);
- Safefree(PL_psig_ptr);
- PL_psig_ptr = (SV**)NULL;
Safefree(PL_psig_name);
PL_psig_name = (SV**)NULL;
- Safefree(PL_bitcount);
- PL_bitcount = Nullch;
+ PL_psig_ptr = (SV**)NULL;
Safefree(PL_psig_pend);
PL_psig_pend = (int*)NULL;
- PL_formfeed = Nullsv;
- Safefree(PL_ofmt);
- PL_ofmt = Nullch;
+ {
+ /* We need to NULL PL_psig_pend first, so that
+ signal handlers know not to use it */
+ int *psig_save = PL_psig_pend;
+ PL_psig_pend = (int*)NULL;
+ Safefree(psig_save);
+ }
+ PL_formfeed = NULL;
nuke_stacks();
PL_tainting = FALSE;
PL_taint_warn = FALSE;
sv_free_arenas();
+ while (PL_regmatch_slab) {
+ regmatch_slab *s = PL_regmatch_slab;
+ PL_regmatch_slab = PL_regmatch_slab->next;
+ Safefree(s);
+ }
+
/* As the absolutely last thing, free the non-arena SV for mess() */
if (PL_mess_sv) {
SvPV_free(PL_mess_sv);
Safefree(SvANY(PL_mess_sv));
Safefree(PL_mess_sv);
- PL_mess_sv = Nullsv;
+ PL_mess_sv = NULL;
}
- return STATUS_NATIVE_EXPORT;
+ return STATUS_EXIT;
}
/*
void
perl_free(pTHXx)
{
+ dVAR;
+
+ PERL_ARGS_ASSERT_PERL_FREE;
+
+ if (PL_veto_cleanup)
+ return;
+
+#ifdef PERL_TRACK_MEMPOOL
+ {
+ /*
+ * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero
+ * value as we're probably hunting memory leaks then
+ */
+ const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL");
+ if (!s || atoi(s) == 0) {
+ const U32 old_debug = PL_debug;
+ /* Emulate the PerlHost behaviour of free()ing all memory allocated in this
+ thread at thread exit. */
+ if (DEBUG_m_TEST) {
+ PerlIO_puts(Perl_debug_log, "Disabling memory debugging as we "
+ "free this thread's memory\n");
+ PL_debug &= ~ DEBUG_m_FLAG;
+ }
+ while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header))
+ safesysfree(sTHX + (char *)(aTHXx->Imemory_debug_header.next));
+ PL_debug = old_debug;
+ }
+ }
+#endif
+
#if defined(WIN32) || defined(NETWARE)
# if defined(PERL_IMPLICIT_SYS)
+ {
# ifdef NETWARE
- void *host = nw_internal_host;
+ void *host = nw_internal_host;
# else
- void *host = w32_internal_host;
+ void *host = w32_internal_host;
# endif
- PerlMem_free(aTHXx);
+ PerlMem_free(aTHXx);
# ifdef NETWARE
- nw_delete_internal_host(host);
+ nw_delete_internal_host(host);
# else
- win32_delete_internal_host(host);
+ win32_delete_internal_host(host);
# endif
+ }
# else
PerlMem_free(aTHXx);
# endif
#endif
}
-#if defined(USE_5005THREADS) || defined(USE_ITHREADS)
+#if defined(USE_ITHREADS)
/* provide destructors to clean up the thread key when libperl is unloaded */
#ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */
-#if defined(__hpux) && !defined(__GNUC__)
+#if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__)
#pragma fini "perl_fini"
+#elif defined(__sun) && !defined(__GNUC__)
+#pragma fini (perl_fini)
#endif
static void
perl_fini(void)
{
dVAR;
- if (PL_curinterp)
+ if (PL_curinterp && !PL_veto_cleanup)
FREE_THREAD_KEY;
}
void
Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr)
{
+ dVAR;
Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
PL_exitlist[PL_exitlistlen].fn = fn;
PL_exitlist[PL_exitlistlen].ptr = ptr;
STATIC void
S_set_caret_X(pTHX) {
- GV* tmpgv = gv_fetchpv("\030",TRUE, SVt_PV); /* $^X */
+ dVAR;
+ GV* tmpgv = gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, SVt_PV); /* $^X */
if (tmpgv) {
#ifdef HAS_PROCSELFEXE
S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]);
#else
#ifdef OS2
- sv_setpv(GvSV(tmpgv), os2_execname(aTHX));
+ sv_setpv(GvSVn(tmpgv), os2_execname(aTHX));
#else
- sv_setpv(GvSV(tmpgv),PL_origargv[0]);
+ sv_setpv(GvSVn(tmpgv),PL_origargv[0]);
#endif
#endif
}
int ret;
dJMPENV;
-#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
-#ifdef IAMSUID
-#undef IAMSUID
- Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\
-setuid perl scripts securely.\n");
-#endif /* IAMSUID */
+ PERL_ARGS_ASSERT_PERL_PARSE;
+#ifndef MULTIPLICITY
+ PERL_UNUSED_ARG(my_perl);
#endif
#if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT)
if (!PL_rehash_seed_set)
PL_rehash_seed = get_hash_seed();
{
- char *s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG");
+ const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG");
- if (s) {
- int i = atoi(s);
-
- if (i == 1)
- PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n",
- PL_rehash_seed);
- }
+ if (s && (atoi(s) == 1))
+ PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n", PL_rehash_seed);
}
#endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
PL_origargc = argc;
PL_origargv = argv;
- {
+ if (PL_origalen != 0) {
+ PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */
+ }
+ else {
/* Set PL_origalen be the sum of the contiguous argv[]
* elements plus the size of the env in case that it is
* contiguous with the argv[]. This is used in mg.c:Perl_magic_set()
* --jhi */
const char *s = NULL;
int i;
- UV mask =
+ const UV mask =
~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0);
/* Do the mask check only if the args seem like aligned. */
- UV aligned =
+ const UV aligned =
(mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0]));
/* See if all the arguments are contiguous in memory. Note
break;
}
}
+
+#ifndef PERL_USE_SAFE_PUTENV
/* Can we grab env area too to be used as the area for $0? */
- if (PL_origenviron) {
- if ((PL_origenviron[0] == s + 1
-#ifdef OS2
- || (PL_origenviron[0] == s + 9 && (s += 8))
-#endif
- )
+ if (s && PL_origenviron && !PL_use_safe_putenv) {
+ if ((PL_origenviron[0] == s + 1)
||
(aligned &&
(PL_origenviron[0] > s &&
INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
)
{
-#ifndef OS2
+#ifndef OS2 /* ENVIRON is read by the kernel too. */
s = PL_origenviron[0];
while (*s) s++;
#endif
- my_setenv("NoNe SuCh", Nullch);
+ my_setenv("NoNe SuCh", NULL);
/* Force copy of environment. */
for (i = 1; PL_origenviron[i]; i++) {
if (PL_origenviron[i] == s + 1
}
}
}
- PL_origalen = s - PL_origargv[0] + 1;
+#endif /* !defined(PERL_USE_SAFE_PUTENV) */
+
+ PL_origalen = s ? s - PL_origargv[0] + 1 : 0;
}
if (PL_do_undump) {
if (PL_main_root) {
op_free(PL_main_root);
- PL_main_root = Nullop;
+ PL_main_root = NULL;
}
- PL_main_start = Nullop;
+ PL_main_start = NULL;
SvREFCNT_dec(PL_main_cv);
- PL_main_cv = Nullcv;
+ PL_main_cv = NULL;
time(&PL_basetime);
oldscope = PL_scopestack_ix;
switch (ret) {
case 0:
parse_body(env,xsinit);
+ if (PL_unitcheckav)
+ call_list(oldscope, PL_unitcheckav);
if (PL_checkav)
call_list(oldscope, PL_checkav);
ret = 0;
LEAVE;
FREETMPS;
PL_curstash = PL_defstash;
+ if (PL_unitcheckav)
+ call_list(oldscope, PL_unitcheckav);
if (PL_checkav)
call_list(oldscope, PL_checkav);
- ret = STATUS_NATIVE_EXPORT;
+ ret = STATUS_EXIT;
break;
case 3:
PerlIO_printf(Perl_error_log, "panic: top_env\n");
return ret;
}
+/* This needs to stay in perl.c, as perl.c is compiled with different flags for
+ miniperl, and we need to see those flags reflected in the values here. */
+
+/* What this returns is subject to change. Use the public interface in Config.
+ */
+static void
+S_Internals_V(pTHX_ CV *cv)
+{
+ dXSARGS;
+#ifdef LOCAL_PATCH_COUNT
+ const int local_patch_count = LOCAL_PATCH_COUNT;
+#else
+ const int local_patch_count = 0;
+#endif
+ const int entries = 3 + local_patch_count;
+ int i;
+ static char non_bincompat_options[] =
+# ifdef DEBUGGING
+ " DEBUGGING"
+# endif
+# ifdef NO_MATHOMS
+ " NO_MATHOMS"
+# endif
+# ifdef PERL_DISABLE_PMC
+ " PERL_DISABLE_PMC"
+# endif
+# ifdef PERL_DONT_CREATE_GVSV
+ " PERL_DONT_CREATE_GVSV"
+# endif
+# ifdef PERL_IS_MINIPERL
+ " PERL_IS_MINIPERL"
+# endif
+# ifdef PERL_MALLOC_WRAP
+ " PERL_MALLOC_WRAP"
+# endif
+# ifdef PERL_MEM_LOG
+ " PERL_MEM_LOG"
+# endif
+# ifdef PERL_MEM_LOG_NOIMPL
+ " PERL_MEM_LOG_NOIMPL"
+# endif
+# ifdef PERL_USE_DEVEL
+ " PERL_USE_DEVEL"
+# endif
+# ifdef PERL_USE_SAFE_PUTENV
+ " PERL_USE_SAFE_PUTENV"
+# endif
+# ifdef USE_ATTRIBUTES_FOR_PERLIO
+ " USE_ATTRIBUTES_FOR_PERLIO"
+# endif
+# ifdef USE_FAST_STDIO
+ " USE_FAST_STDIO"
+# endif
+# ifdef USE_PERL_ATOF
+ " USE_PERL_ATOF"
+# endif
+# ifdef USE_SITECUSTOMIZE
+ " USE_SITECUSTOMIZE"
+# endif
+ ;
+ PERL_UNUSED_ARG(cv);
+ PERL_UNUSED_ARG(items);
+
+ EXTEND(SP, entries);
+
+ PUSHs(sv_2mortal(newSVpv(PL_bincompat_options, 0)));
+ PUSHs(Perl_newSVpvn_flags(aTHX_ non_bincompat_options,
+ sizeof(non_bincompat_options) - 1, SVs_TEMP));
+
+#ifdef __DATE__
+# ifdef __TIME__
+ PUSHs(Perl_newSVpvn_flags(aTHX_
+ STR_WITH_LEN("Compiled at " __DATE__ " " __TIME__),
+ SVs_TEMP));
+# else
+ PUSHs(Perl_newSVpvn_flags(aTHX_ STR_WITH_LEN("Compiled on " __DATE__),
+ SVs_TEMP));
+# endif
+#else
+ PUSHs(&PL_sv_undef);
+#endif
+
+ for (i = 1; i <= local_patch_count; i++) {
+ /* This will be an undef, if PL_localpatches[i] is NULL. */
+ PUSHs(sv_2mortal(newSVpv(PL_localpatches[i], 0)));
+ }
+
+ XSRETURN(entries);
+}
+
+#define INCPUSH_UNSHIFT 0x01
+#define INCPUSH_ADD_OLD_VERS 0x02
+#define INCPUSH_ADD_VERSIONED_SUB_DIRS 0x04
+#define INCPUSH_ADD_ARCHONLY_SUB_DIRS 0x08
+#define INCPUSH_NOT_BASEDIR 0x10
+#define INCPUSH_CAN_RELOCATE 0x20
+#define INCPUSH_ADD_SUB_DIRS \
+ (INCPUSH_ADD_VERSIONED_SUB_DIRS|INCPUSH_ADD_ARCHONLY_SUB_DIRS)
+
STATIC void *
S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
{
dVAR;
+ PerlIO *rsfp;
int argc = PL_origargc;
char **argv = PL_origargv;
const char *scriptname = NULL;
VOL bool dosearch = FALSE;
- const char *validarg = "";
- register SV *sv;
- register char *s;
- const char *cddir = Nullch;
+ register char c;
+ const char *cddir = NULL;
+#ifdef USE_SITECUSTOMIZE
bool minus_f = FALSE;
+#endif
+ SV *linestr_sv = newSV_type(SVt_PVIV);
+ bool add_read_e_script = FALSE;
+
+ SvGROW(linestr_sv, 80);
+ sv_setpvs(linestr_sv,"");
- PL_fdscript = -1;
- PL_suidscript = -1;
- sv_setpvn(PL_linestr,"",0);
- sv = newSVpvn("",0); /* first used for -I flags */
- SAVEFREESV(sv);
init_main_stash();
+ {
+ const char *s;
for (argc--,argv++; argc > 0; argc--,argv++) {
if (argv[0][0] != '-' || !argv[0][1])
break;
-#ifdef DOSUID
- if (*validarg)
- validarg = " PHOOEY ";
- else
- validarg = argv[0];
- /*
- * Can we rely on the kernel to start scripts with argv[1] set to
- * contain all #! line switches (the whole line)? (argv[0] is set to
- * the interpreter name, argv[2] to the script name; argv[3] and
- * above may contain other arguments.)
- */
-#endif
s = argv[0]+1;
reswitch:
- switch (*s) {
+ switch ((c = *s)) {
case 'C':
#ifndef PERL_STRICT_CR
case '\r':
case 'W':
case 'X':
case 'w':
- case 'A':
if ((s = moreswitches(s)))
goto reswitch;
break;
s++;
goto reswitch;
+ case 'E':
+ PL_minus_E = TRUE;
+ /* FALL THROUGH */
case 'e':
-#ifdef MACOS_TRADITIONAL
- /* ignore -e for Dev:Pseudo argument */
- if (argv[1] && !strcmp(argv[1], "Dev:Pseudo"))
- break;
-#endif
- forbid_setid("-e");
+ forbid_setid('e', FALSE);
if (!PL_e_script) {
- PL_e_script = newSVpvn("",0);
- filter_add(read_e_script, NULL);
+ PL_e_script = newSVpvs("");
+ add_read_e_script = TRUE;
}
if (*++s)
sv_catpv(PL_e_script, s);
argc--,argv++;
}
else
- Perl_croak(aTHX_ "No code specified for -e");
- sv_catpv(PL_e_script, "\n");
+ Perl_croak(aTHX_ "No code specified for -%c", c);
+ sv_catpvs(PL_e_script, "\n");
break;
case 'f':
+#ifdef USE_SITECUSTOMIZE
minus_f = TRUE;
+#endif
s++;
goto reswitch;
case 'I': /* -I handled both here and in moreswitches() */
- forbid_setid("-I");
- if (!*++s && (s=argv[1]) != Nullch) {
+ forbid_setid('I', FALSE);
+ if (!*++s && (s=argv[1]) != NULL) {
argc--,argv++;
}
if (s && *s) {
- char *p;
STRLEN len = strlen(s);
- p = savepvn(s, len);
- incpush(p, TRUE, TRUE, FALSE, FALSE);
- sv_catpvn(sv, "-I", 2);
- sv_catpvn(sv, p, len);
- sv_catpvn(sv, " ", 1);
- Safefree(p);
+ incpush(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS);
}
else
Perl_croak(aTHX_ "No directory specified for -I");
break;
- case 'P':
- forbid_setid("-P");
- PL_preprocess = TRUE;
- s++;
- goto reswitch;
case 'S':
- forbid_setid("-S");
+ forbid_setid('S', FALSE);
dosearch = TRUE;
s++;
goto reswitch;
case 'V':
- if (!PL_preambleav)
- PL_preambleav = newAV();
- av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
- if (*++s != ':') {
- STRLEN opts;
-
- PL_Sv = newSVpv("print myconfig();",0);
-#ifdef VMS
- sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
-#else
- sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
-#endif
- opts = SvCUR(PL_Sv);
+ {
+ SV *opts_prog;
- sv_catpv(PL_Sv,"\" Compile-time options:");
-# ifdef DEBUGGING
- sv_catpv(PL_Sv," DEBUGGING");
-# endif
-# ifdef MULTIPLICITY
- sv_catpv(PL_Sv," MULTIPLICITY");
-# endif
-# ifdef USE_5005THREADS
- sv_catpv(PL_Sv," USE_5005THREADS");
-# endif
-# ifdef USE_ITHREADS
- sv_catpv(PL_Sv," USE_ITHREADS");
-# endif
-# ifdef USE_64_BIT_INT
- sv_catpv(PL_Sv," USE_64_BIT_INT");
-# endif
-# ifdef USE_64_BIT_ALL
- sv_catpv(PL_Sv," USE_64_BIT_ALL");
-# endif
-# ifdef USE_LONG_DOUBLE
- sv_catpv(PL_Sv," USE_LONG_DOUBLE");
-# endif
-# ifdef USE_LARGE_FILES
- sv_catpv(PL_Sv," USE_LARGE_FILES");
-# endif
-# ifdef USE_SOCKS
- sv_catpv(PL_Sv," USE_SOCKS");
-# endif
-# ifdef USE_SITECUSTOMIZE
- sv_catpv(PL_Sv," USE_SITECUSTOMIZE");
-# endif
-# ifdef PERL_IMPLICIT_CONTEXT
- sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT");
-# endif
-# ifdef PERL_IMPLICIT_SYS
- sv_catpv(PL_Sv," PERL_IMPLICIT_SYS");
-# endif
-
- while (SvCUR(PL_Sv) > opts+76) {
- /* find last space after "options: " and before col 76 */
-
- const char *space;
- char *pv = SvPV_nolen(PL_Sv);
- const char c = pv[opts+76];
- pv[opts+76] = '\0';
- space = strrchr(pv+opts+26, ' ');
- pv[opts+76] = c;
- if (!space) break; /* "Can't happen" */
-
- /* break the line before that space */
-
- opts = space - pv;
- sv_insert(PL_Sv, opts, 0,
- "\\n ", 25);
- }
-
- sv_catpv(PL_Sv,"\\n\",");
-
-#if defined(LOCAL_PATCH_COUNT)
- if (LOCAL_PATCH_COUNT > 0) {
- int i;
- sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
- for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
- if (PL_localpatches[i])
- Perl_sv_catpvf(aTHX_ PL_Sv,"q%c\t%s\n%c,",
- 0, PL_localpatches[i], 0);
- }
+ if (*++s != ':') {
+ opts_prog = newSVpvs("use Config; Config::_V()");
}
-#endif
- Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME);
-#ifdef __DATE__
-# ifdef __TIME__
- Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
-# else
- Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
-# endif
-#endif
- sv_catpv(PL_Sv, "; \
-$\"=\"\\n \"; \
-@env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; ");
-#ifdef __CYGWIN__
- sv_catpv(PL_Sv,"\
-push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";");
-#endif
- sv_catpv(PL_Sv, "\
-print \" \\%ENV:\\n @env\\n\" if @env; \
-print \" \\@INC:\\n @INC\\n\";");
- }
- else {
- PL_Sv = newSVpv("config_vars(qw(",0);
- sv_catpv(PL_Sv, ++s);
- sv_catpv(PL_Sv, "))");
- s += strlen(s);
+ else {
+ ++s;
+ opts_prog = Perl_newSVpvf(aTHX_
+ "use Config; Config::config_vars(qw%c%s%c)",
+ 0, s, 0);
+ s += strlen(s);
+ }
+ Perl_av_create_and_push(aTHX_ &PL_preambleav, opts_prog);
+ /* don't look for script or read stdin */
+ scriptname = BIT_BUCKET;
+ goto reswitch;
}
- av_push(PL_preambleav, PL_Sv);
- scriptname = BIT_BUCKET; /* don't look for script or read stdin */
- goto reswitch;
case 'x':
PL_doextract = TRUE;
s++;
Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
}
}
+ }
+
switch_end:
+ {
+ char *s;
+
if (
#ifndef SECURE_INTERNAL_GETENV
!PL_tainting &&
#endif
(s = PerlEnv_getenv("PERL5OPT")))
{
- const char *popt = s;
while (isSPACE(*s))
s++;
if (*s == '-' && *(s+1) == 'T') {
PL_taint_warn = FALSE;
}
else {
- char *popt_copy = Nullch;
+ char *popt_copy = NULL;
while (s && *s) {
- char *d;
+ const char *d;
while (isSPACE(*s))
s++;
if (*s == '-') {
d = s;
if (!*s)
break;
- if (!strchr("DIMUdmtwA", *s))
+ if (!strchr("CDIMUdmtwW", *s))
Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
while (++s && *s) {
if (isSPACE(*s)) {
if (!popt_copy) {
- popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0)));
- s = popt_copy + (s - popt);
- d = popt_copy + (d - popt);
+ popt_copy = SvPVX(sv_2mortal(newSVpv(d,0)));
+ s = popt_copy + (s - d);
+ d = popt_copy;
}
*s++ = '\0';
break;
}
}
}
+ }
-#ifdef USE_SITECUSTOMIZE
+#if defined(USE_SITECUSTOMIZE) && !defined(PERL_IS_MINIPERL)
if (!minus_f) {
- if (!PL_preambleav)
- PL_preambleav = newAV();
- av_unshift(PL_preambleav, 1);
- (void)av_store(PL_preambleav, 0, Perl_newSVpvf(aTHX_ "BEGIN { do '%s/sitecustomize.pl' }", SITELIB_EXP));
+ /* SITELIB_EXP is a function call on Win32.
+ The games with local $! are to avoid setting errno if there is no
+ sitecustomize script. */
+ const char *const sitelib = SITELIB_EXP;
+ (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav,
+ Perl_newSVpvf(aTHX_
+ "BEGIN { do {local $!; -f '%s/sitecustomize.pl'} && do '%s/sitecustomize.pl' }", sitelib, sitelib));
}
#endif
- if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) {
- PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize);
- }
-
if (!scriptname)
scriptname = argv[0];
if (PL_e_script) {
argc++,argv--;
scriptname = BIT_BUCKET; /* don't look for script or read stdin */
}
- else if (scriptname == Nullch) {
+ else if (scriptname == NULL) {
#ifdef MSDOS
if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
moreswitches("h");
TAINT_NOT;
init_perllib();
- open_script(scriptname,dosearch,sv);
+ {
+ bool suidscript = FALSE;
+
+ open_script(scriptname, dosearch, &suidscript, &rsfp);
- validate_suid(validarg, scriptname);
+ validate_suid(validarg, scriptname, fdscript, suidscript,
+ linestr_sv, rsfp);
#ifndef PERL_MICRO
-#if defined(SIGCHLD) || defined(SIGCLD)
- {
-#ifndef SIGCHLD
-# define SIGCHLD SIGCLD
-#endif
- Sighandler_t sigstate = rsignal_state(SIGCHLD);
- if (sigstate == SIG_IGN) {
- if (ckWARN(WARN_SIGNAL))
- Perl_warner(aTHX_ packWARN(WARN_SIGNAL),
- "Can't ignore signal CHLD, forcing to default");
- (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
+# if defined(SIGCHLD) || defined(SIGCLD)
+ {
+# ifndef SIGCHLD
+# define SIGCHLD SIGCLD
+# endif
+ Sighandler_t sigstate = rsignal_state(SIGCHLD);
+ if (sigstate == (Sighandler_t) SIG_IGN) {
+ Perl_ck_warner(aTHX_ packWARN(WARN_SIGNAL),
+ "Can't ignore signal CHLD, forcing to default");
+ (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
+ }
}
- }
-#endif
+# endif
#endif
-#ifdef MACOS_TRADITIONAL
- if (PL_doextract || gMacPerl_AlwaysExtract) {
-#else
- if (PL_doextract) {
-#endif
- find_beginning();
- if (cddir && PerlDir_chdir( (char *)cddir ) < 0)
- Perl_croak(aTHX_ "Can't chdir to %s",cddir);
+ if (PL_doextract) {
+ /* This will croak if suidscript is true, as -x cannot be used with
+ setuid scripts. */
+ forbid_setid('x', suidscript);
+ /* Hence you can't get here if suidscript is true */
+
+ find_beginning(linestr_sv, rsfp);
+ if (cddir && PerlDir_chdir( (char *)cddir ) < 0)
+ Perl_croak(aTHX_ "Can't chdir to %s",cddir);
+ }
}
- PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
- sv_upgrade((SV *)PL_compcv, SVt_PVCV);
+ PL_main_cv = PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV));
CvUNIQUE_on(PL_compcv);
CvPADLIST(PL_compcv) = pad_new(0);
-#ifdef USE_5005THREADS
- CvOWNER(PL_compcv) = 0;
- New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
- MUTEX_INIT(CvMUTEXP(PL_compcv));
-#endif /* USE_5005THREADS */
+
+ PL_isarev = newHV();
boot_core_PerlIO();
boot_core_UNIVERSAL();
- boot_core_xsutils();
+ boot_core_mro();
+ newXS("Internals::V", S_Internals_V, __FILE__);
if (xsinit)
(*xsinit)(aTHX); /* in case linked C routines want magical variables */
#ifndef PERL_MICRO
-#if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC)
+#if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) || defined(SYMBIAN)
init_os_extras();
#endif
#endif
* or explicitly in some platforms.
* locale.c:Perl_init_i18nl10n() if the environment
* look like the user wants to use UTF-8. */
-#if defined(SYMBIAN)
+#if defined(__SYMBIAN32__)
PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */
#endif
+# ifndef PERL_IS_MINIPERL
if (PL_unicode) {
/* Requires init_predump_symbols(). */
if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
(fp = IoOFP(io)))
PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) &&
- (sv = GvSV(gv_fetchpv("\017PEN", TRUE, SVt_PV)))) {
+ (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL,
+ SVt_PV)))) {
U32 in = PL_unicode & PERL_UNICODE_IN_FLAG;
U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
if (in) {
if (out)
- sv_setpvn(sv, ":utf8\0:utf8", 11);
+ sv_setpvs(sv, ":utf8\0:utf8");
else
- sv_setpvn(sv, ":utf8\0", 6);
+ sv_setpvs(sv, ":utf8\0");
}
else if (out)
- sv_setpvn(sv, "\0:utf8", 6);
+ sv_setpvs(sv, "\0:utf8");
SvSETMAGIC(sv);
}
}
}
+#endif
+ {
+ const char *s;
if ((s = PerlEnv_getenv("PERL_SIGNALS"))) {
if (strEQ(s, "unsafe"))
PL_signals |= PERL_SIGNALS_UNSAFE_FLAG;
else
Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s);
}
+ }
+
+#ifdef PERL_MAD
+ {
+ const char *s;
+ if ((s = PerlEnv_getenv("PERL_XMLDUMP"))) {
+ PL_madskills = 1;
+ PL_minus_c = 1;
+ if (!s || !s[0])
+ PL_xmlfp = PerlIO_stdout();
+ else {
+ PL_xmlfp = PerlIO_open(s, "w");
+ if (!PL_xmlfp)
+ Perl_croak(aTHX_ "Can't open %s", s);
+ }
+ my_setenv("PERL_XMLDUMP", NULL); /* hide from subprocs */
+ }
+ }
+
+ {
+ const char *s;
+ if ((s = PerlEnv_getenv("PERL_MADSKILLS"))) {
+ PL_madskills = atoi(s);
+ my_setenv("PERL_MADSKILLS", NULL); /* hide from subprocs */
+ }
+ }
+#endif
- init_lexer();
+ lex_start(linestr_sv, rsfp, TRUE);
+ PL_subname = newSVpvs("main");
+
+ if (add_read_e_script)
+ filter_add(read_e_script, NULL);
/* now parse the script */
SETERRNO(0,SS_NORMAL);
- PL_error_count = 0;
-#ifdef MACOS_TRADITIONAL
- if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) {
- if (PL_minus_c)
- Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename));
- else {
- Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
- MacPerl_MPWFileName(PL_origfilename));
- }
- }
-#else
- if (yyparse() || PL_error_count) {
+ if (yyparse() || PL_parser->error_count) {
if (PL_minus_c)
Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
else {
PL_origfilename);
}
}
-#endif
CopLINE_set(PL_curcop, 0);
PL_curstash = PL_defstash;
- PL_preprocess = FALSE;
if (PL_e_script) {
SvREFCNT_dec(PL_e_script);
- PL_e_script = Nullsv;
+ PL_e_script = NULL;
}
if (PL_do_undump)
FREETMPS;
#ifdef MYMALLOC
+ {
+ const char *s;
if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
dump_mstats("after compilation:");
+ }
#endif
ENTER;
+ PL_restartjmpenv = NULL;
PL_restartop = 0;
return NULL;
}
int
perl_run(pTHXx)
{
+ dVAR;
I32 oldscope;
int ret = 0;
dJMPENV;
+ PERL_ARGS_ASSERT_PERL_RUN;
+#ifndef MULTIPLICITY
+ PERL_UNUSED_ARG(my_perl);
+#endif
+
oldscope = PL_scopestack_ix;
#ifdef VMS
VMSISH_HUSHED = 0;
if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
dump_mstats("after execution: ");
#endif
- ret = STATUS_NATIVE_EXPORT;
+ ret = STATUS_EXIT;
break;
case 3:
if (PL_restartop) {
return ret;
}
-
STATIC void
S_run_body(pTHX_ I32 oldscope)
{
+ dVAR;
DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
PL_sawampersand ? "Enabling" : "Omitting"));
if (!PL_restartop) {
- DEBUG_x(dump_all());
+#ifdef PERL_MAD
+ if (PL_xmlfp) {
+ xmldump_all();
+ exit(0); /* less likely to core dump than my_exit(0) */
+ }
+#endif
+#ifdef DEBUGGING
+ if (DEBUG_x_TEST || DEBUG_B_TEST)
+ dump_all_perl(!DEBUG_B_TEST);
if (!DEBUG_q_TEST)
PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
- DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n",
- PTR2UV(thr)));
+#endif
if (PL_minus_c) {
-#ifdef MACOS_TRADITIONAL
- PerlIO_printf(Perl_error_log, "%s%s syntax OK\n",
- (gMacPerl_ErrorFormat ? "# " : ""),
- MacPerl_MPWFileName(PL_origfilename));
-#else
PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
-#endif
my_exit(0);
}
if (PERLDB_SINGLE && PL_DBsingle)
sv_setiv(PL_DBsingle, 1);
if (PL_initav)
call_list(oldscope, PL_initav);
+#ifdef PERL_DEBUG_READONLY_OPS
+ Perl_pending_Slabs_to_ro(aTHX);
+#endif
}
/* do it */
if (PL_restartop) {
+ PL_restartjmpenv = NULL;
PL_op = PL_restartop;
PL_restartop = 0;
CALLRUNOPS(aTHX);
=for apidoc p||get_sv
-Returns the SV of the specified Perl scalar. If C<create> is set and the
-Perl variable does not exist then it will be created. If C<create> is not
-set and the variable does not exist then NULL is returned.
+Returns the SV of the specified Perl scalar. C<flags> are passed to
+C<gv_fetchpv>. If C<GV_ADD> is set and the
+Perl variable does not exist then it will be created. If C<flags> is zero
+and the variable does not exist then NULL is returned.
=cut
*/
SV*
-Perl_get_sv(pTHX_ const char *name, I32 create)
+Perl_get_sv(pTHX_ const char *name, I32 flags)
{
GV *gv;
-#ifdef USE_5005THREADS
- if (name[1] == '\0' && !isALPHA(name[0])) {
- PADOFFSET tmp = find_threadsv(name);
- if (tmp != NOT_IN_PAD)
- return THREADSV(tmp);
- }
-#endif /* USE_5005THREADS */
- gv = gv_fetchpv(name, create, SVt_PV);
+
+ PERL_ARGS_ASSERT_GET_SV;
+
+ gv = gv_fetchpv(name, flags, SVt_PV);
if (gv)
return GvSV(gv);
- return Nullsv;
+ return NULL;
}
/*
=for apidoc p||get_av
-Returns the AV of the specified Perl array. If C<create> is set and the
-Perl variable does not exist then it will be created. If C<create> is not
-set and the variable does not exist then NULL is returned.
+Returns the AV of the specified Perl array. C<flags> are passed to
+C<gv_fetchpv>. If C<GV_ADD> is set and the
+Perl variable does not exist then it will be created. If C<flags> is zero
+and the variable does not exist then NULL is returned.
=cut
*/
AV*
-Perl_get_av(pTHX_ const char *name, I32 create)
+Perl_get_av(pTHX_ const char *name, I32 flags)
{
- GV* gv = gv_fetchpv(name, create, SVt_PVAV);
- if (create)
+ GV* const gv = gv_fetchpv(name, flags, SVt_PVAV);
+
+ PERL_ARGS_ASSERT_GET_AV;
+
+ if (flags)
return GvAVn(gv);
if (gv)
return GvAV(gv);
- return Nullav;
+ return NULL;
}
/*
=for apidoc p||get_hv
-Returns the HV of the specified Perl hash. If C<create> is set and the
-Perl variable does not exist then it will be created. If C<create> is not
-set and the variable does not exist then NULL is returned.
+Returns the HV of the specified Perl hash. C<flags> are passed to
+C<gv_fetchpv>. If C<GV_ADD> is set and the
+Perl variable does not exist then it will be created. If C<flags> is zero
+and the variable does not exist then NULL is returned.
=cut
*/
HV*
-Perl_get_hv(pTHX_ const char *name, I32 create)
+Perl_get_hv(pTHX_ const char *name, I32 flags)
{
- GV* gv = gv_fetchpv(name, create, SVt_PVHV);
- if (create)
+ GV* const gv = gv_fetchpv(name, flags, SVt_PVHV);
+
+ PERL_ARGS_ASSERT_GET_HV;
+
+ if (flags)
return GvHVn(gv);
if (gv)
return GvHV(gv);
- return Nullhv;
+ return NULL;
}
/*
=head1 CV Manipulation Functions
+=for apidoc p||get_cvn_flags
+
+Returns the CV of the specified Perl subroutine. C<flags> are passed to
+C<gv_fetchpvn_flags>. If C<GV_ADD> is set and the Perl subroutine does not
+exist then it will be declared (which has the same effect as saying
+C<sub name;>). If C<GV_ADD> is not set and the subroutine does not exist
+then NULL is returned.
+
=for apidoc p||get_cv
-Returns the CV of the specified Perl subroutine. If C<create> is set and
-the Perl subroutine does not exist then it will be declared (which has the
-same effect as saying C<sub name;>). If C<create> is not set and the
-subroutine does not exist then NULL is returned.
+Uses C<strlen> to get the length of C<name>, then calls C<get_cvn_flags>.
=cut
*/
CV*
-Perl_get_cv(pTHX_ const char *name, I32 create)
+Perl_get_cvn_flags(pTHX_ const char *name, STRLEN len, I32 flags)
{
- GV* gv = gv_fetchpv(name, create, SVt_PVCV);
- /* XXX unsafe for threads if eval_owner isn't held */
+ GV* const gv = gv_fetchpvn_flags(name, len, flags, SVt_PVCV);
/* XXX this is probably not what they think they're getting.
* It has the same effect as "sub name;", i.e. just a forward
* declaration! */
- if (create && !GvCVu(gv))
+
+ PERL_ARGS_ASSERT_GET_CVN_FLAGS;
+
+ if ((flags & ~GV_NOADD_MASK) && !GvCVu(gv)) {
+ SV *const sv = newSVpvn_flags(name, len, flags & SVf_UTF8);
return newSUB(start_subparse(FALSE, 0),
- newSVOP(OP_CONST, 0, newSVpv(name,0)),
- Nullop,
- Nullop);
+ newSVOP(OP_CONST, 0, sv),
+ NULL, NULL);
+ }
if (gv)
return GvCVu(gv);
- return Nullcv;
+ return NULL;
+}
+
+/* Nothing in core calls this now, but we can't replace it with a macro and
+ move it to mathoms.c as a macro would evaluate name twice. */
+CV*
+Perl_get_cv(pTHX_ const char *name, I32 flags)
+{
+ PERL_ARGS_ASSERT_GET_CV;
+
+ return get_cvn_flags(name, strlen(name), flags);
}
/* Be sure to refetch the stack pointer after calling these routines. */
/* See G_* flags in cop.h */
/* null terminated arg list */
{
+ dVAR;
dSP;
+ PERL_ARGS_ASSERT_CALL_ARGV;
+
PUSHMARK(SP);
if (argv) {
while (*argv) {
- XPUSHs(sv_2mortal(newSVpv(*argv,0)));
+ mXPUSHs(newSVpv(*argv,0));
argv++;
}
PUTBACK;
/* name of the subroutine */
/* See G_* flags in cop.h */
{
- return call_sv((SV*)get_cv(sub_name, TRUE), flags);
+ PERL_ARGS_ASSERT_CALL_PV;
+
+ return call_sv(MUTABLE_SV(get_cv(sub_name, GV_ADD)), flags);
}
/*
/* name of the subroutine */
/* See G_* flags in cop.h */
{
- return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD);
+ STRLEN len;
+ PERL_ARGS_ASSERT_CALL_METHOD;
+
+ len = strlen(methname);
+
+ /* XXX: sv_2mortal(newSVpvn_share(methname, len)) can be faster */
+ return call_sv(newSVpvn_flags(methname, len, SVs_TEMP), flags | G_METHOD);
}
/* May be called with any of a CV, a GV, or an SV containing the name. */
*/
I32
-Perl_call_sv(pTHX_ SV *sv, I32 flags)
+Perl_call_sv(pTHX_ SV *sv, VOL I32 flags)
/* See G_* flags in cop.h */
{
dVAR; dSP;
LOGOP myop; /* fake syntax tree node */
UNOP method_op;
I32 oldmark;
- volatile I32 retval = 0;
+ VOL I32 retval = 0;
I32 oldscope;
bool oldcatch = CATCH_GET;
int ret;
- OP* oldop = PL_op;
+ OP* const oldop = PL_op;
dJMPENV;
+ PERL_ARGS_ASSERT_CALL_SV;
+
if (flags & G_DISCARD) {
ENTER;
SAVETMPS;
}
+ if (!(flags & G_WANT)) {
+ /* Backwards compatibility - as G_SCALAR was 0, it could be omitted.
+ */
+ flags |= G_SCALAR;
+ }
Zero(&myop, 1, LOGOP);
- myop.op_next = Nullop;
+ myop.op_next = NULL;
if (!(flags & G_NOARGS))
myop.op_flags |= OPf_STACKED;
- myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
- (flags & G_ARRAY) ? OPf_WANT_LIST :
- OPf_WANT_SCALAR);
+ myop.op_flags |= OP_GIMME_REVERSE(flags);
SAVEOP();
PL_op = (OP*)&myop;
&& (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
/* Try harder, since this may have been a sighandler, thus
* curstash may be meaningless. */
- && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
+ && (SvTYPE(sv) != SVt_PVCV || CvSTASH((const CV *)sv) != PL_debstash)
&& !(flags & G_NODEBUG))
PL_op->op_private |= OPpENTERSUB_DB;
Zero(&method_op, 1, UNOP);
method_op.op_next = PL_op;
method_op.op_ppaddr = PL_ppaddr[OP_METHOD];
+ method_op.op_type = OP_METHOD;
myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
+ myop.op_type = OP_ENTERSUB;
PL_op = (OP*)&method_op;
}
if (!(flags & G_EVAL)) {
CATCH_SET(TRUE);
- call_body((OP*)&myop, FALSE);
+ CALL_BODY_SUB((OP*)&myop);
retval = PL_stack_sp - (PL_stack_base + oldmark);
CATCH_SET(oldcatch);
}
else {
myop.op_other = (OP*)&myop;
PL_markstack_ptr--;
- /* we're trying to emulate pp_entertry() here */
- {
- register PERL_CONTEXT *cx;
- const I32 gimme = GIMME_V;
-
- ENTER;
- SAVETMPS;
-
- PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp);
- PUSHEVAL(cx, 0, 0);
- PL_eval_root = PL_op; /* Only needed so that goto works right. */
-
- PL_in_eval = EVAL_INEVAL;
- if (flags & G_KEEPERR)
- PL_in_eval |= EVAL_KEEPERR;
- else
- sv_setpvn(ERRSV,"",0);
- }
+ create_eval_scope(flags|G_FAKINGEVAL);
PL_markstack_ptr++;
JMPENV_PUSH(ret);
+
switch (ret) {
case 0:
redo_body:
- call_body((OP*)&myop, FALSE);
+ CALL_BODY_SUB((OP*)&myop);
retval = PL_stack_sp - (PL_stack_base + oldmark);
- if (!(flags & G_KEEPERR))
- sv_setpvn(ERRSV,"",0);
+ if (!(flags & G_KEEPERR)) {
+ CLEAR_ERRSV();
+ }
break;
case 1:
STATUS_ALL_FAILURE;
PL_curstash = PL_defstash;
FREETMPS;
JMPENV_POP;
- if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
- Perl_croak(aTHX_ "Callback called exit");
my_exit_jump();
/* NOTREACHED */
case 3:
if (PL_restartop) {
+ PL_restartjmpenv = NULL;
PL_op = PL_restartop;
PL_restartop = 0;
goto redo_body;
}
PL_stack_sp = PL_stack_base + oldmark;
- if (flags & G_ARRAY)
+ if ((flags & G_WANT) == G_ARRAY)
retval = 0;
else {
retval = 1;
break;
}
- if (PL_scopestack_ix > oldscope) {
- SV **newsp;
- PMOP *newpm;
- I32 gimme;
- register PERL_CONTEXT *cx;
- I32 optype;
-
- POPBLOCK(cx,newpm);
- POPEVAL(cx);
- PL_curpm = newpm;
- LEAVE;
- }
+ if (PL_scopestack_ix > oldscope)
+ delete_eval_scope();
JMPENV_POP;
}
return retval;
}
-STATIC void
-S_call_body(pTHX_ const OP *myop, bool is_eval)
-{
- if (PL_op == myop) {
- if (is_eval)
- PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */
- else
- PL_op = Perl_pp_entersub(aTHX); /* this does */
- }
- if (PL_op)
- CALLRUNOPS(aTHX);
-}
-
/* Eval a string. The G_EVAL flag is always assumed. */
/*
/* See G_* flags in cop.h */
{
+ dVAR;
dSP;
UNOP myop; /* fake syntax tree node */
- volatile I32 oldmark = SP - PL_stack_base;
- volatile I32 retval = 0;
- I32 oldscope;
+ VOL I32 oldmark = SP - PL_stack_base;
+ VOL I32 retval = 0;
int ret;
- OP* oldop = PL_op;
+ OP* const oldop = PL_op;
dJMPENV;
+ PERL_ARGS_ASSERT_EVAL_SV;
+
if (flags & G_DISCARD) {
ENTER;
SAVETMPS;
Zero(PL_op, 1, UNOP);
EXTEND(PL_stack_sp, 1);
*++PL_stack_sp = sv;
- oldscope = PL_scopestack_ix;
if (!(flags & G_NOARGS))
myop.op_flags = OPf_STACKED;
- myop.op_next = Nullop;
+ myop.op_next = NULL;
myop.op_type = OP_ENTEREVAL;
- myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
- (flags & G_ARRAY) ? OPf_WANT_LIST :
- OPf_WANT_SCALAR);
+ myop.op_flags |= OP_GIMME_REVERSE(flags);
if (flags & G_KEEPERR)
myop.op_flags |= OPf_SPECIAL;
switch (ret) {
case 0:
redo_body:
- call_body((OP*)&myop,TRUE);
+ CALL_BODY_EVAL((OP*)&myop);
retval = PL_stack_sp - (PL_stack_base + oldmark);
- if (!(flags & G_KEEPERR))
- sv_setpvn(ERRSV,"",0);
+ if (!(flags & G_KEEPERR)) {
+ CLEAR_ERRSV();
+ }
break;
case 1:
STATUS_ALL_FAILURE;
PL_curstash = PL_defstash;
FREETMPS;
JMPENV_POP;
- if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
- Perl_croak(aTHX_ "Callback called exit");
my_exit_jump();
/* NOTREACHED */
case 3:
if (PL_restartop) {
+ PL_restartjmpenv = NULL;
PL_op = PL_restartop;
PL_restartop = 0;
goto redo_body;
}
PL_stack_sp = PL_stack_base + oldmark;
- if (flags & G_ARRAY)
+ if ((flags & G_WANT) == G_ARRAY)
retval = 0;
else {
retval = 1;
SV*
Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
{
+ dVAR;
dSP;
SV* sv = newSVpv(p, 0);
+ PERL_ARGS_ASSERT_EVAL_PV;
+
eval_sv(sv, G_SCALAR);
SvREFCNT_dec(sv);
PUTBACK;
if (croak_on_error && SvTRUE(ERRSV)) {
- STRLEN n_a;
- Perl_croak(aTHX_ SvPVx(ERRSV, n_a));
+ Perl_croak(aTHX_ "%s", SvPVx_nolen_const(ERRSV));
}
return sv;
void
Perl_require_pv(pTHX_ const char *pv)
{
- SV* sv;
+ dVAR;
dSP;
+ SV* sv;
+
+ PERL_ARGS_ASSERT_REQUIRE_PV;
+
PUSHSTACKi(PERLSI_REQUIRE);
PUTBACK;
- sv = sv_newmortal();
- sv_setpv(sv, "require '");
- sv_catpv(sv, pv);
- sv_catpv(sv, "'");
- eval_sv(sv, G_DISCARD);
+ sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0);
+ eval_sv(sv_2mortal(sv), G_DISCARD);
SPAGAIN;
POPSTACK;
}
-void
-Perl_magicname(pTHX_ const char *sym, const char *name, I32 namlen)
-{
- register GV *gv;
-
- if ((gv = gv_fetchpv(sym,TRUE, SVt_PV)))
- sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen);
-}
-
STATIC void
S_usage(pTHX_ const char *name) /* XXX move this out into a module ? */
{
/* This message really ought to be max 23 lines.
* Removed -h because the user already knows that option. Others? */
+ /* Grouped as 6 lines per C string literal, to keep under the ANSI C 89
+ minimum of 509 character string literals. */
static const char * const usage_msg[] = {
-"-0[octal] specify record separator (\\0, if no argument)",
-"-A[name] activate all/given assertions",
-"-a autosplit mode with -n or -p (splits $_ into @F)",
-"-C[number/list] enables the listed Unicode features",
-"-c check syntax only (runs BEGIN and CHECK blocks)",
-"-d[:debugger] run program under debugger",
-"-D[number/list] set debugging flags (argument is a bit mask or alphabets)",
-"-e program one line of program (several -e's allowed, omit programfile)",
-#ifdef USE_SITECUSTOMIZE
-"-f don't do $sitelib/sitecustomize.pl at startup",
-#endif
-"-F/pattern/ split() pattern for -a switch (//'s are optional)",
-"-i[extension] edit <> files in place (makes backup if extension supplied)",
-"-Idirectory specify @INC/#include directory (several -I's allowed)",
-"-l[octal] enable line ending processing, specifies line terminator",
-"-[mM][-]module execute `use/no module...' before executing program",
-"-n assume 'while (<>) { ... }' loop around program",
-"-p assume loop like -n but print line also, like sed",
-"-P run program through C preprocessor before compilation",
-"-s enable rudimentary parsing for switches after programfile",
-"-S look for programfile using PATH environment variable",
-"-t enable tainting warnings",
-"-T enable tainting checks",
-"-u dump core after parsing program",
-"-U allow unsafe operations",
-"-v print version, subversion (includes VERY IMPORTANT perl info)",
-"-V[:variable] print configuration summary (or a single Config.pm variable)",
-"-w enable many useful warnings (RECOMMENDED)",
-"-W enable all warnings",
-"-x[directory] strip off text before #!perl line and perhaps cd to directory",
-"-X disable all warnings",
-"\n",
+" -0[octal] specify record separator (\\0, if no argument)\n"
+" -a autosplit mode with -n or -p (splits $_ into @F)\n"
+" -C[number/list] enables the listed Unicode features\n"
+" -c check syntax only (runs BEGIN and CHECK blocks)\n"
+" -d[:debugger] run program under debugger\n"
+" -D[number/list] set debugging flags (argument is a bit mask or alphabets)\n",
+" -e program one line of program (several -e's allowed, omit programfile)\n"
+" -E program like -e, but enables all optional features\n"
+" -f don't do $sitelib/sitecustomize.pl at startup\n"
+" -F/pattern/ split() pattern for -a switch (//'s are optional)\n"
+" -i[extension] edit <> files in place (makes backup if extension supplied)\n"
+" -Idirectory specify @INC/#include directory (several -I's allowed)\n",
+" -l[octal] enable line ending processing, specifies line terminator\n"
+" -[mM][-]module execute \"use/no module...\" before executing program\n"
+" -n assume \"while (<>) { ... }\" loop around program\n"
+" -p assume loop like -n but print line also, like sed\n"
+" -s enable rudimentary parsing for switches after programfile\n"
+" -S look for programfile using PATH environment variable\n",
+" -t enable tainting warnings\n"
+" -T enable tainting checks\n"
+" -u dump core after parsing program\n"
+" -U allow unsafe operations\n"
+" -v print version, patchlevel and license\n"
+" -V[:variable] print configuration summary (or a single Config.pm variable)\n",
+" -w enable many useful warnings (RECOMMENDED)\n"
+" -W enable all warnings\n"
+" -x[directory] ignore text before #!perl line (optionally cd to directory)\n"
+" -X disable all warnings\n"
+" \n"
+"Run 'perldoc perl' for more help with Perl.\n\n",
NULL
};
const char * const *p = usage_msg;
+ PerlIO *out = PerlIO_stdout();
- PerlIO_printf(PerlIO_stdout(),
- "\nUsage: %s [switches] [--] [programfile] [arguments]",
+ PERL_ARGS_ASSERT_USAGE;
+
+ PerlIO_printf(out,
+ "\nUsage: %s [switches] [--] [programfile] [arguments]\n",
name);
while (*p)
- PerlIO_printf(PerlIO_stdout(), "\n %s", *p++);
+ PerlIO_puts(out, *p++);
}
/* convert a string of -D options (or digits) into an int.
Perl_get_debug_opts(pTHX_ const char **s, bool givehelp)
{
static const char * const usage_msgd[] = {
- " Debugging flag values: (see also -d)",
- " p Tokenizing and parsing (with v, displays parse stack)",
- " s Stack snapshots (with v, displays all stacks)",
- " l Context (loop) stack processing",
- " t Trace execution",
- " o Method and overloading resolution",
- " c String/numeric conversions",
- " P Print profiling info, preprocessor command for -P, source file input state",
- " m Memory allocation",
- " f Format processing",
- " r Regular expression parsing and execution",
- " x Syntax tree dump",
- " u Tainting checks",
- " H Hash dump -- usurps values()",
- " X Scratchpad allocation",
- " D Cleaning up",
- " S Thread synchronization",
- " T Tokenising",
- " R Include reference counts of dumped variables (eg when using -Ds)",
- " J Do not s,t,P-debug (Jump over) opcodes within package DB",
- " v Verbose: use in conjunction with other flags",
- " C Copy On Write",
- " A Consistency checks on internal structures",
- " q quiet - currently only suppresses the 'EXECUTING' message",
+ " Debugging flag values: (see also -d)\n"
+ " p Tokenizing and parsing (with v, displays parse stack)\n"
+ " s Stack snapshots (with v, displays all stacks)\n"
+ " l Context (loop) stack processing\n"
+ " t Trace execution\n"
+ " o Method and overloading resolution\n",
+ " c String/numeric conversions\n"
+ " P Print profiling info, source file input state\n"
+ " m Memory and SV allocation\n"
+ " f Format processing\n"
+ " r Regular expression parsing and execution\n"
+ " x Syntax tree dump\n",
+ " u Tainting checks\n"
+ " H Hash dump -- usurps values()\n"
+ " X Scratchpad allocation\n"
+ " D Cleaning up\n"
+ " T Tokenising\n"
+ " R Include reference counts of dumped variables (eg when using -Ds)\n",
+ " J Do not s,t,P-debug (Jump over) opcodes within package DB\n"
+ " v Verbose: use in conjunction with other flags\n"
+ " C Copy On Write\n"
+ " A Consistency checks on internal structures\n"
+ " q quiet - currently only suppresses the 'EXECUTING' message\n"
+ " M trace smart match resolution\n"
+ " B dump suBroutine definitions, including special Blocks like BEGIN\n",
NULL
};
int i = 0;
+
+ PERL_ARGS_ASSERT_GET_DEBUG_OPTS;
+
if (isALPHA(**s)) {
/* if adding extra options, remember to update DEBUG_MASK */
- static const char debopts[] = "psltocPmfrxu HXDSTRJvCAq";
+ static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAqMB";
for (; isALNUM(**s); (*s)++) {
- const char *d = strchr(debopts,**s);
+ const char * const d = strchr(debopts,**s);
if (d)
i |= 1 << (d - debopts);
else if (ckWARN_d(WARN_DEBUGGING))
for (; isALNUM(**s); (*s)++) ;
}
else if (givehelp) {
- char **p = (char **)usage_msgd;
- while (*p) PerlIO_printf(PerlIO_stdout(), "%s\n", *p++);
+ const char *const *p = usage_msgd;
+ while (*p) PerlIO_puts(PerlIO_stdout(), *p++);
}
# ifdef EBCDIC
if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING))
/* This routine handles any switches that can be given during run */
-char *
-Perl_moreswitches(pTHX_ char *s)
+const char *
+Perl_moreswitches(pTHX_ const char *s)
{
dVAR;
UV rschar;
+ const char option = *s; /* used to remember option in -m/-M code */
+
+ PERL_ARGS_ASSERT_MORESWITCHES;
switch (*s) {
case '0':
numlen = 0;
s--;
}
- PL_rs = newSVpvn("", 0);
+ PL_rs = newSVpvs("");
SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1));
tmps = (U8*)SvPVX(PL_rs);
uvchr_to_utf8(tmps, rschar);
if (rschar & ~((U8)~0))
PL_rs = &PL_sv_undef;
else if (!rschar && numlen >= 2)
- PL_rs = newSVpvn("", 0);
+ PL_rs = newSVpvs("");
else {
char ch = (char)rschar;
PL_rs = newSVpvn(&ch, 1);
}
}
- sv_setsv(get_sv("/", TRUE), PL_rs);
+ sv_setsv(get_sv("/", GV_ADD), PL_rs);
return s + numlen;
}
case 'C':
s++;
PL_unicode = parse_unicode_opts( (const char **)&s );
+ if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG)
+ PL_utf8cache = -1;
return s;
case 'F':
PL_minus_F = TRUE;
PL_splitstr = ++s;
while (*s && !isSPACE(*s)) ++s;
- *s = '\0';
- PL_splitstr = savepv(PL_splitstr);
+ PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr);
return s;
case 'a':
PL_minus_a = TRUE;
s++;
return s;
case 'd':
- forbid_setid("-d");
+ forbid_setid('d', FALSE);
s++;
/* -dt indicates to the debugger that threads will be used */
/* The following permits -d:Mod to accepts arguments following an =
in the fashion that -MSome::Mod does. */
if (*s == ':' || *s == '=') {
- const char *start;
- SV *sv;
- sv = newSVpv("use Devel::", 0);
- start = ++s;
+ const char *start = ++s;
+ const char *const end = s + strlen(s);
+ SV * const sv = newSVpvs("use Devel::");
+
/* We now allow -d:Module=Foo,Bar */
while(isALNUM(*s) || *s==':') ++s;
if (*s != '=')
- sv_catpv(sv, start);
+ sv_catpvn(sv, start, end - start);
else {
sv_catpvn(sv, start, s-start);
- sv_catpv(sv, " split(/,/,q{");
- sv_catpv(sv, ++s);
- sv_catpv(sv, "})");
+ /* Don't use NUL as q// delimiter here, this string goes in the
+ * environment. */
+ Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s);
}
- s += strlen(s);
- my_setenv("PERL5DB", SvPV(sv, PL_na));
+ s = end;
+ my_setenv("PERL5DB", SvPV_nolen_const(sv));
+ SvREFCNT_dec(sv);
}
if (!PL_perldb) {
PL_perldb = PERLDB_ALL;
case 'D':
{
#ifdef DEBUGGING
- forbid_setid("-D");
+ forbid_setid('D', FALSE);
s++;
PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG;
#else /* !DEBUGGING */
"Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n");
for (s++; isALNUM(*s); s++) ;
#endif
- /*SUPPRESS 530*/
return s;
}
case 'h':
usage(PL_origargv[0]);
my_exit(0);
case 'i':
- if (PL_inplace)
- Safefree(PL_inplace);
+ Safefree(PL_inplace);
#if defined(__CYGWIN__) /* do backup extension automagically */
if (*(s+1) == '\0') {
- PL_inplace = savepv(".bak");
+ PL_inplace = savepvs(".bak");
return s+1;
}
#endif /* __CYGWIN__ */
- PL_inplace = savepv(s+1);
- /*SUPPRESS 530*/
- for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
+ {
+ const char * const start = ++s;
+ while (*s && !isSPACE(*s))
+ ++s;
+
+ PL_inplace = savepvn(start, s - start);
+ }
if (*s) {
- *s++ = '\0';
+ ++s;
if (*s == '-') /* Additional switches on #! line. */
- s++;
+ s++;
}
return s;
case 'I': /* -I handled both here and in parse_body() */
- forbid_setid("-I");
+ forbid_setid('I', FALSE);
++s;
while (*s && isSPACE(*s))
++s;
if (*s) {
- char *e, *p;
+ const char *e, *p;
p = s;
/* ignore trailing spaces (possibly followed by other switches) */
do {
while (isSPACE(*p))
p++;
} while (*p && *p != '-');
- e = savepvn(s, e-s);
- incpush(e, TRUE, TRUE, FALSE, FALSE);
- Safefree(e);
+ incpush(s, e-s,
+ INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS|INCPUSH_UNSHIFT);
s = p;
if (*s == '-')
s++;
s++;
if (PL_ors_sv) {
SvREFCNT_dec(PL_ors_sv);
- PL_ors_sv = Nullsv;
+ PL_ors_sv = NULL;
}
if (isDIGIT(*s)) {
I32 flags = 0;
STRLEN numlen;
- PL_ors_sv = newSVpvn("\n",1);
+ PL_ors_sv = newSVpvs("\n");
numlen = 3 + (*s == '0');
*SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL);
s += numlen;
}
else {
if (RsPARA(PL_rs)) {
- PL_ors_sv = newSVpvn("\n\n",2);
+ PL_ors_sv = newSVpvs("\n\n");
}
else {
PL_ors_sv = newSVsv(PL_rs);
}
}
return s;
- case 'A':
- forbid_setid("-A");
- if (!PL_preambleav)
- PL_preambleav = newAV();
- if (*++s) {
- SV *sv = newSVpv("use assertions::activate split(/,/,q", 0);
- sv_catpvn(sv, "\0", 1); /* Use NUL as q//-delimiter. */
- sv_catpv(sv,s);
- sv_catpvn(sv, "\0)", 2);
- s+=strlen(s);
- av_push(PL_preambleav, sv);
- }
- else
- av_push(PL_preambleav, newSVpvn("use assertions::activate",24));
- return s;
case 'M':
- forbid_setid("-M"); /* XXX ? */
+ forbid_setid('M', FALSE); /* XXX ? */
/* FALL THROUGH */
case 'm':
- forbid_setid("-m"); /* XXX ? */
+ forbid_setid('m', FALSE); /* XXX ? */
if (*++s) {
- char *start;
+ const char *start;
+ const char *end;
SV *sv;
const char *use = "use ";
+ bool colon = FALSE;
/* -M-foo == 'no foo' */
- if (*s == '-') { use = "no "; ++s; }
- sv = newSVpv(use,0);
+ /* Leading space on " no " is deliberate, to make both
+ possibilities the same length. */
+ if (*s == '-') { use = " no "; ++s; }
+ sv = newSVpvn(use,4);
start = s;
/* We allow -M'Module qw(Foo Bar)' */
- while(isALNUM(*s) || *s==':') ++s;
+ while(isALNUM(*s) || *s==':') {
+ if( *s++ == ':' ) {
+ if( *s == ':' )
+ s++;
+ else
+ colon = TRUE;
+ }
+ }
+ if (s == start)
+ Perl_croak(aTHX_ "Module name required with -%c option",
+ option);
+ if (colon)
+ Perl_croak(aTHX_ "Invalid module name %.*s with -%c option: "
+ "contains single ':'",
+ (int)(s - start), start, option);
+ end = s + strlen(s);
if (*s != '=') {
- sv_catpv(sv, start);
- if (*(start-1) == 'm') {
+ sv_catpvn(sv, start, end - start);
+ if (option == 'm') {
if (*s != '\0')
Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
- sv_catpv( sv, " ()");
+ sv_catpvs( sv, " ()");
}
} else {
- if (s == start)
- Perl_croak(aTHX_ "Module name required with -%c option",
- s[-1]);
sv_catpvn(sv, start, s-start);
- sv_catpv(sv, " split(/,/,q");
- sv_catpvn(sv, "\0)", 1); /* Use NUL as q//-delimiter. */
- sv_catpv(sv, ++s);
- sv_catpvn(sv, "\0)", 2);
+ /* Use NUL as q''-delimiter. */
+ sv_catpvs(sv, " split(/,/,q\0");
+ ++s;
+ sv_catpvn(sv, s, end - s);
+ sv_catpvs(sv, "\0)");
}
- s += strlen(s);
- if (!PL_preambleav)
- PL_preambleav = newAV();
- av_push(PL_preambleav, sv);
+ s = end;
+ Perl_av_create_and_push(aTHX_ &PL_preambleav, sv);
}
else
- Perl_croak(aTHX_ "Missing argument to -%c", *(s-1));
+ Perl_croak(aTHX_ "Missing argument to -%c", option);
return s;
case 'n':
PL_minus_n = TRUE;
s++;
return s;
case 's':
- forbid_setid("-s");
+ forbid_setid('s', FALSE);
PL_doswitches = TRUE;
s++;
return s;
s++;
return s;
case 'u':
-#ifdef MACOS_TRADITIONAL
- Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh");
-#endif
PL_do_undump = TRUE;
s++;
return s;
return s;
case 'v':
if (!sv_derived_from(PL_patchlevel, "version"))
- (void *)upg_version(PL_patchlevel);
+ upg_version(PL_patchlevel, TRUE);
#if !defined(DGUX)
- PerlIO_printf(PerlIO_stdout(),
- Perl_form(aTHX_ "\nThis is perl, v%"SVf" built for %s",
- vstringify(PL_patchlevel),
- ARCHNAME));
+ {
+ SV* level= vstringify(PL_patchlevel);
+#ifdef PERL_PATCHNUM
+# ifdef PERL_GIT_UNCOMMITTED_CHANGES
+ SV *num = newSVpvs(PERL_PATCHNUM "*");
+# else
+ SV *num = newSVpvs(PERL_PATCHNUM);
+# endif
+
+ if (sv_len(num)>=sv_len(level) && strnEQ(SvPV_nolen(num),SvPV_nolen(level),sv_len(level))) {
+ SvREFCNT_dec(level);
+ level= num;
+ } else {
+ Perl_sv_catpvf(aTHX_ level, " (%"SVf")", num);
+ SvREFCNT_dec(num);
+ }
+ #endif
+ PerlIO_printf(PerlIO_stdout(),
+ "\nThis is perl " STRINGIFY(PERL_REVISION)
+ ", version " STRINGIFY(PERL_VERSION)
+ ", subversion " STRINGIFY(PERL_SUBVERSION)
+ " (%"SVf") built for " ARCHNAME, level
+ );
+ SvREFCNT_dec(level);
+ }
#else /* DGUX */
/* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */
PerlIO_printf(PerlIO_stdout(),
- Perl_form(aTHX_ "\nThis is perl, v%"SVf"\n",
- vstringify(PL_patchlevel)));
+ Perl_form(aTHX_ "\nThis is perl, %"SVf"\n",
+ SVfARG(vstringify(PL_patchlevel))));
PerlIO_printf(PerlIO_stdout(),
Perl_form(aTHX_ " built under %s at %s %s\n",
OSNAME, __DATE__, __TIME__));
Perl_form(aTHX_ " OS Specific Release: %s\n",
OSVERS));
#endif /* !DGUX */
-
#if defined(LOCAL_PATCH_COUNT)
if (LOCAL_PATCH_COUNT > 0)
PerlIO_printf(PerlIO_stdout(),
"\n(with %d registered patch%s, "
"see perl -V for more detail)",
- (int)LOCAL_PATCH_COUNT,
+ LOCAL_PATCH_COUNT,
(LOCAL_PATCH_COUNT!=1) ? "es" : "");
#endif
PerlIO_printf(PerlIO_stdout(),
- "\n\nCopyright 1987-2005, Larry Wall\n");
-#ifdef MACOS_TRADITIONAL
- PerlIO_printf(PerlIO_stdout(),
- "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n"
- "maintained by Chris Nandor\n");
-#endif
+ "\n\nCopyright 1987-2010, Larry Wall\n");
#ifdef MSDOS
PerlIO_printf(PerlIO_stdout(),
"\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
PerlIO_printf(PerlIO_stdout(),
"BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
#endif
-#ifdef __MINT__
- PerlIO_printf(PerlIO_stdout(),
- "MiNT port by Guido Flohr, 1997-1999\n");
-#endif
#ifdef EPOC
PerlIO_printf(PerlIO_stdout(),
"EPOC port by Olaf Flebbe, 1999-2002\n");
PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n");
wce_hitreturn();
#endif
-#ifdef SYMBIAN
+#ifdef __SYMBIAN32__
PerlIO_printf(PerlIO_stdout(),
"Symbian port by Nokia, 2004-2005\n");
#endif
Perl may be copied only under the terms of either the Artistic License or the\n\
GNU General Public License, which may be found in the Perl 5 source kit.\n\n\
Complete documentation for Perl, including FAQ lists, should be found on\n\
-this system using `man perl' or `perldoc perl'. If you have access to the\n\
+this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\
Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n");
my_exit(0);
case 'w':
- if (! (PL_dowarn & G_WARN_ALL_MASK))
+ if (! (PL_dowarn & G_WARN_ALL_MASK)) {
PL_dowarn |= G_WARN_ON;
+ }
s++;
return s;
case 'W':
PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
if (!specialWARN(PL_compiling.cop_warnings))
- SvREFCNT_dec(PL_compiling.cop_warnings);
+ PerlMemShared_free(PL_compiling.cop_warnings);
PL_compiling.cop_warnings = pWARN_ALL ;
s++;
return s;
case 'X':
PL_dowarn = G_WARN_ALL_OFF;
if (!specialWARN(PL_compiling.cop_warnings))
- SvREFCNT_dec(PL_compiling.cop_warnings);
+ PerlMemShared_free(PL_compiling.cop_warnings);
PL_compiling.cop_warnings = pWARN_NONE ;
s++;
return s;
case '*':
case ' ':
- if (s[1] == '-') /* Additional switches on #! line. */
- return s+2;
+ while( *s == ' ' )
+ ++s;
+ if (s[0] == '-') /* Additional switches on #! line. */
+ return s+1;
break;
case '-':
case 0:
case 'S': /* OS/2 needs -S on "extproc" line. */
break;
#endif
- case 'P':
- if (PL_preprocess)
- return s+1;
- /* FALL THROUGH */
default:
Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
}
- return Nullch;
+ return NULL;
}
/* compliments of Tom Christiansen */
void
Perl_my_unexec(pTHX)
{
+ PERL_UNUSED_CONTEXT;
#ifdef UNEXEC
- SV* prog;
- SV* file;
+ SV * prog = newSVpv(BIN_EXP, 0);
+ SV * file = newSVpv(PL_origfilename, 0);
int status = 1;
extern int etext;
- prog = newSVpv(BIN_EXP, 0);
- sv_catpv(prog, "/perl");
- file = newSVpv(PL_origfilename, 0);
- sv_catpv(file, ".perldump");
+ sv_catpvs(prog, "/perl");
+ sv_catpvs(file, ".perldump");
unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
/* unexec prints msg to stderr in case of failure */
# ifdef VMS
# include <lib$routines.h>
lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
+# elif defined(WIN32) || defined(__CYGWIN__)
+ Perl_croak(aTHX_ "dump is not supported");
# else
ABORT(); /* for use with undump */
# endif
STATIC void
S_init_interp(pTHX)
{
-
+ dVAR;
#ifdef MULTIPLICITY
# define PERLVAR(var,type)
# define PERLVARA(var,n,type)
# if defined(PERL_IMPLICIT_CONTEXT)
-# if defined(USE_5005THREADS)
-# define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
-# define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
-# else /* !USE_5005THREADS */
-# define PERLVARI(var,type,init) aTHX->var = init;
-# define PERLVARIC(var,type,init) aTHX->var = init;
-# endif /* USE_5005THREADS */
+# define PERLVARI(var,type,init) aTHX->var = init;
+# define PERLVARIC(var,type,init) aTHX->var = init;
# else
# define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
# define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
# endif
# include "intrpvar.h"
-# ifndef USE_5005THREADS
-# include "thrdvar.h"
-# endif
# undef PERLVAR
# undef PERLVARA
# undef PERLVARI
# define PERLVARI(var,type,init) PL_##var = init;
# define PERLVARIC(var,type,init) PL_##var = init;
# include "intrpvar.h"
-# ifndef USE_5005THREADS
-# include "thrdvar.h"
-# endif
# undef PERLVAR
# undef PERLVARA
# undef PERLVARI
# undef PERLVARIC
#endif
+ /* As these are inside a structure, PERLVARI isn't capable of initialising
+ them */
+ PL_reg_oldcurpm = PL_reg_curpm = NULL;
+ PL_reg_poscache = PL_reg_starttry = NULL;
}
STATIC void
S_init_main_stash(pTHX)
{
+ dVAR;
GV *gv;
PL_curstash = PL_defstash = newHV();
- PL_curstname = newSVpvn("main",4);
- gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
+ /* We know that the string "main" will be in the global shared string
+ table, so it's a small saving to use it rather than allocate another
+ 8 bytes. */
+ PL_curstname = newSVpvs_share("main");
+ gv = gv_fetchpvs("main::", GV_ADD|GV_NOTQUAL, SVt_PVHV);
+ /* If we hadn't caused another reference to "main" to be in the shared
+ string table above, then it would be worth reordering these two,
+ because otherwise all we do is delete "main" from it as a consequence
+ of the SvREFCNT_dec, only to add it again with hv_name_set */
SvREFCNT_dec(GvHV(gv));
- GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
+ hv_name_set(PL_defstash, "main", 4, 0);
+ GvHV(gv) = MUTABLE_HV(SvREFCNT_inc_simple(PL_defstash));
SvREADONLY_on(gv);
- Perl_hv_name_set(aTHX_ PL_defstash, "main", 4, 0);
- PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
+ PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpvs("INC", GV_ADD|GV_NOTQUAL,
+ SVt_PVAV)));
+ SvREFCNT_inc_simple_void(PL_incgv); /* Don't allow it to be freed */
GvMULTI_on(PL_incgv);
- PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
+ PL_hintgv = gv_fetchpvs("\010", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^H */
GvMULTI_on(PL_hintgv);
- PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
- PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
+ PL_defgv = gv_fetchpvs("_", GV_ADD|GV_NOTQUAL, SVt_PVAV);
+ SvREFCNT_inc_simple_void(PL_defgv);
+ PL_errgv = gv_HVadd(gv_fetchpvs("@", GV_ADD|GV_NOTQUAL, SVt_PV));
+ SvREFCNT_inc_simple_void(PL_errgv);
GvMULTI_on(PL_errgv);
- PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
+ PL_replgv = gv_fetchpvs("\022", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^R */
GvMULTI_on(PL_replgv);
(void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */
+#ifdef PERL_DONT_CREATE_GVSV
+ gv_SVadd(PL_errgv);
+#endif
sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
- sv_setpvn(ERRSV, "", 0);
+ CLEAR_ERRSV();
PL_curstash = PL_defstash;
CopSTASH_set(&PL_compiling, PL_defstash);
- PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
- PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
+ PL_debstash = GvHV(gv_fetchpvs("DB::", GV_ADDMULTI, SVt_PVHV));
+ PL_globalstash = GvHV(gv_fetchpvs("CORE::GLOBAL::", GV_ADDMULTI,
+ SVt_PVHV));
/* We must init $/ before switches are processed. */
- sv_setpvn(get_sv("/", TRUE), "\n", 1);
+ sv_setpvs(get_sv("/", GV_ADD), "\n");
}
-/* PSz 18 Nov 03 fdscript now global but do not change prototype */
-STATIC void
-S_open_script(pTHX_ const char *scriptname, bool dosearch, SV *sv)
+STATIC int
+S_open_script(pTHX_ const char *scriptname, bool dosearch,
+ bool *suidscript, PerlIO **rsfpp)
{
-#ifndef IAMSUID
- const char *quote;
- const char *code;
- const char *cpp_discard_flag;
- const char *perl;
-#endif
+ int fdscript = -1;
dVAR;
- PL_fdscript = -1;
- PL_suidscript = -1;
+ PERL_ARGS_ASSERT_OPEN_SCRIPT;
if (PL_e_script) {
- PL_origfilename = savepvn("-e", 2);
+ PL_origfilename = savepvs("-e");
}
else {
/* if find_script() returns, it returns a malloc()-ed value */
if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
const char *s = scriptname + 8;
- PL_fdscript = atoi(s);
+ fdscript = atoi(s);
while (isDIGIT(*s))
s++;
if (*s) {
* Is it a mistake to use a similar /dev/fd/ construct for
* suidperl?
*/
- PL_suidscript = 1;
+ *suidscript = TRUE;
/* PSz 20 Feb 04
* Be supersafe and do some sanity-checks.
* Still, can we be sure we got the right thing?
CopFILE_set(PL_curcop, PL_origfilename);
if (*PL_origfilename == '-' && PL_origfilename[1] == '\0')
scriptname = (char *)"";
- if (PL_fdscript >= 0) {
- PL_rsfp = PerlIO_fdopen(PL_fdscript,PERL_SCRIPT_MODE);
+ if (fdscript >= 0) {
+ *rsfpp = PerlIO_fdopen(fdscript,PERL_SCRIPT_MODE);
# if defined(HAS_FCNTL) && defined(F_SETFD)
- if (PL_rsfp)
+ if (*rsfpp)
/* ensure close-on-exec */
- fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
-# endif
- }
-#ifdef IAMSUID
- else {
- Perl_croak(aTHX_ "sperl needs fd script\n"
- "You should not call sperl directly; do you need to "
- "change a #! line\nfrom sperl to perl?\n");
-
-/* PSz 11 Nov 03
- * Do not open (or do other fancy stuff) while setuid.
- * Perl does the open, and hands script to suidperl on a fd;
- * suidperl only does some checks, sets up UIDs and re-execs
- * perl with that fd as it has always done.
- */
- }
- if (PL_suidscript != 1) {
- Perl_croak(aTHX_ "suidperl needs (suid) fd script\n");
- }
-#else /* IAMSUID */
- else if (PL_preprocess) {
- const char *cpp_cfg = CPPSTDIN;
- SV *cpp = newSVpvn("",0);
- SV *cmd = NEWSV(0,0);
-
- if (cpp_cfg[0] == 0) /* PERL_MICRO? */
- Perl_croak(aTHX_ "Can't run with cpp -P with CPPSTDIN undefined");
- if (strEQ(cpp_cfg, "cppstdin"))
- Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP);
- sv_catpv(cpp, cpp_cfg);
-
-# ifndef VMS
- sv_catpvn(sv, "-I", 2);
- sv_catpv(sv,PRIVLIB_EXP);
-# endif
-
- DEBUG_P(PerlIO_printf(Perl_debug_log,
- "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n",
- scriptname, SvPVX (cpp), SvPVX (sv), CPPMINUS));
-
-# if defined(MSDOS) || defined(WIN32) || defined(VMS)
- quote = "\"";
-# else
- quote = "'";
-# endif
-
-# ifdef VMS
- cpp_discard_flag = "";
-# else
- cpp_discard_flag = "-C";
+ fcntl(PerlIO_fileno(*rsfpp),F_SETFD,1);
# endif
-
-# ifdef OS2
- perl = os2_execname(aTHX);
-# else
- perl = PL_origargv[0];
-# endif
-
-
- /* This strips off Perl comments which might interfere with
- the C pre-processor, including #!. #line directives are
- deliberately stripped to avoid confusion with Perl's version
- of #line. FWP played some golf with it so it will fit
- into VMS's 255 character buffer.
- */
- if( PL_doextract )
- code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
- else
- code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
-
- Perl_sv_setpvf(aTHX_ cmd, "\
-%s -ne%s%s%s %s | %"SVf" %s %"SVf" %s",
- perl, quote, code, quote, scriptname, cpp,
- cpp_discard_flag, sv, CPPMINUS);
-
- PL_doextract = FALSE;
-
- DEBUG_P(PerlIO_printf(Perl_debug_log,
- "PL_preprocess: cmd=\"%s\"\n",
- SvPVX(cmd)));
-
- PL_rsfp = PerlProc_popen(SvPVX(cmd), (char *)"r");
- SvREFCNT_dec(cmd);
- SvREFCNT_dec(cpp);
}
else if (!*scriptname) {
- forbid_setid("program input from stdin");
- PL_rsfp = PerlIO_stdin();
+ forbid_setid(0, *suidscript);
+ *rsfpp = PerlIO_stdin();
}
else {
- PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
+#ifdef FAKE_BIT_BUCKET
+ /* This hack allows one not to have /dev/null (or BIT_BUCKET as it
+ * is called) and still have the "-e" work. (Believe it or not,
+ * a /dev/null is required for the "-e" to work because source
+ * filter magic is used to implement it. ) This is *not* a general
+ * replacement for a /dev/null. What we do here is create a temp
+ * file (an empty file), open up that as the script, and then
+ * immediately close and unlink it. Close enough for jazz. */
+#define FAKE_BIT_BUCKET_PREFIX "/tmp/perlnull-"
+#define FAKE_BIT_BUCKET_SUFFIX "XXXXXXXX"
+#define FAKE_BIT_BUCKET_TEMPLATE FAKE_BIT_BUCKET_PREFIX FAKE_BIT_BUCKET_SUFFIX
+ char tmpname[sizeof(FAKE_BIT_BUCKET_TEMPLATE)] = {
+ FAKE_BIT_BUCKET_TEMPLATE
+ };
+ const char * const err = "Failed to create a fake bit bucket";
+ if (strEQ(scriptname, BIT_BUCKET)) {
+#ifdef HAS_MKSTEMP /* Hopefully mkstemp() is safe here. */
+ int tmpfd = mkstemp(tmpname);
+ if (tmpfd > -1) {
+ scriptname = tmpname;
+ close(tmpfd);
+ } else
+ Perl_croak(aTHX_ err);
+#else
+# ifdef HAS_MKTEMP
+ scriptname = mktemp(tmpname);
+ if (!scriptname)
+ Perl_croak(aTHX_ err);
+# endif
+#endif
+ }
+#endif
+ *rsfpp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
+#ifdef FAKE_BIT_BUCKET
+ if (memEQ(scriptname, FAKE_BIT_BUCKET_PREFIX,
+ sizeof(FAKE_BIT_BUCKET_PREFIX) - 1)
+ && strlen(scriptname) == sizeof(tmpname) - 1) {
+ unlink(scriptname);
+ }
+ scriptname = BIT_BUCKET;
+#endif
# if defined(HAS_FCNTL) && defined(F_SETFD)
- if (PL_rsfp)
+ if (*rsfpp)
/* ensure close-on-exec */
- fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
+ fcntl(PerlIO_fileno(*rsfpp),F_SETFD,1);
# endif
}
-#endif /* IAMSUID */
- if (!PL_rsfp) {
+ if (!*rsfpp) {
/* PSz 16 Sep 03 Keep neat error message */
- Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
- CopFILE(PL_curcop), Strerror(errno));
+ if (PL_e_script)
+ Perl_croak(aTHX_ "Can't open "BIT_BUCKET": %s\n", Strerror(errno));
+ else
+ Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
+ CopFILE(PL_curcop), Strerror(errno));
}
+ return fdscript;
}
/* Mention
* I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT
* here so that metaconfig picks them up. */
-#ifdef IAMSUID
-STATIC int
-S_fd_on_nosuid_fs(pTHX_ int fd)
+
+#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
+/* Don't even need this function. */
+#else
+STATIC void
+S_validate_suid(pTHX_ PerlIO *rsfp)
{
-/* PSz 27 Feb 04
- * We used to do this as "plain" user (after swapping UIDs with setreuid);
- * but is needed also on machines without setreuid.
- * Seems safe enough to run as root.
- */
- int check_okay = 0; /* able to do all the required sys/libcalls */
- int on_nosuid = 0; /* the fd is on a nosuid fs */
- /* PSz 12 Nov 03
- * Need to check noexec also: nosuid might not be set, the average
- * sysadmin would say that nosuid is irrelevant once he sets noexec.
- */
- int on_noexec = 0; /* the fd is on a noexec fs */
+ PERL_ARGS_ASSERT_VALIDATE_SUID;
-/*
- * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent().
- * fstatvfs() is UNIX98.
- * fstatfs() is 4.3 BSD.
- * ustat()+getmnt() is pre-4.3 BSD.
- * getmntent() is O(number-of-mounted-filesystems) and can hang on
- * an irrelevant filesystem while trying to reach the right one.
- */
+ if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
+ dVAR;
-#undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */
-
-# if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
- defined(HAS_FSTATVFS)
-# define FD_ON_NOSUID_CHECK_OKAY
- struct statvfs stfs;
-
- check_okay = fstatvfs(fd, &stfs) == 0;
- on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID);
-#ifdef ST_NOEXEC
- /* ST_NOEXEC certainly absent on AIX 5.1, and doesn't seem to be documented
- on platforms where it is present. */
- on_noexec = check_okay && (stfs.f_flag & ST_NOEXEC);
-#endif
-# endif /* fstatvfs */
-
-# if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
- defined(PERL_MOUNT_NOSUID) && \
- defined(PERL_MOUNT_NOEXEC) && \
- defined(HAS_FSTATFS) && \
- defined(HAS_STRUCT_STATFS) && \
- defined(HAS_STRUCT_STATFS_F_FLAGS)
-# define FD_ON_NOSUID_CHECK_OKAY
- struct statfs stfs;
-
- check_okay = fstatfs(fd, &stfs) == 0;
- on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID);
- on_noexec = check_okay && (stfs.f_flags & PERL_MOUNT_NOEXEC);
-# endif /* fstatfs */
-
-# if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
- defined(PERL_MOUNT_NOSUID) && \
- defined(PERL_MOUNT_NOEXEC) && \
- defined(HAS_FSTAT) && \
- defined(HAS_USTAT) && \
- defined(HAS_GETMNT) && \
- defined(HAS_STRUCT_FS_DATA) && \
- defined(NOSTAT_ONE)
-# define FD_ON_NOSUID_CHECK_OKAY
- Stat_t fdst;
-
- if (fstat(fd, &fdst) == 0) {
- struct ustat us;
- if (ustat(fdst.st_dev, &us) == 0) {
- struct fs_data fsd;
- /* NOSTAT_ONE here because we're not examining fields which
- * vary between that case and STAT_ONE. */
- if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) {
- size_t cmplen = sizeof(us.f_fname);
- if (sizeof(fsd.fd_req.path) < cmplen)
- cmplen = sizeof(fsd.fd_req.path);
- if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) &&
- fdst.st_dev == fsd.fd_req.dev) {
- check_okay = 1;
- on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID;
- on_noexec = fsd.fd_req.flags & PERL_MOUNT_NOEXEC;
- }
- }
- }
- }
- }
-# endif /* fstat+ustat+getmnt */
-
-# if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
- defined(HAS_GETMNTENT) && \
- defined(HAS_HASMNTOPT) && \
- defined(MNTOPT_NOSUID) && \
- defined(MNTOPT_NOEXEC)
-# define FD_ON_NOSUID_CHECK_OKAY
- FILE *mtab = fopen("/etc/mtab", "r");
- struct mntent *entry;
- Stat_t stb, fsb;
-
- if (mtab && (fstat(fd, &stb) == 0)) {
- while (entry = getmntent(mtab)) {
- if (stat(entry->mnt_dir, &fsb) == 0
- && fsb.st_dev == stb.st_dev)
- {
- /* found the filesystem */
- check_okay = 1;
- if (hasmntopt(entry, MNTOPT_NOSUID))
- on_nosuid = 1;
- if (hasmntopt(entry, MNTOPT_NOEXEC))
- on_noexec = 1;
- break;
- } /* A single fs may well fail its stat(). */
- }
+ PerlLIO_fstat(PerlIO_fileno(rsfp),&PL_statbuf); /* may be either wrapped or real suid */
+ if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
+ ||
+ (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
+ )
+ if (!PL_do_undump)
+ Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
+FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
+ /* not set-id, must be wrapped */
}
- if (mtab)
- fclose(mtab);
-# endif /* getmntent+hasmntopt */
-
- if (!check_okay)
- Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid/noexec", PL_origfilename);
- if (on_nosuid)
- Perl_croak(aTHX_ "Setuid script \"%s\" on nosuid filesystem", PL_origfilename);
- if (on_noexec)
- Perl_croak(aTHX_ "Setuid script \"%s\" on noexec filesystem", PL_origfilename);
- return ((!check_okay) || on_nosuid || on_noexec);
}
-#endif /* IAMSUID */
+#endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
STATIC void
-S_validate_suid(pTHX_ const char *validarg, const char *scriptname)
+S_find_beginning(pTHX_ SV* linestr_sv, PerlIO *rsfp)
{
dVAR;
-#ifdef IAMSUID
- /* int which; */
-#endif /* IAMSUID */
-
- /* do we need to emulate setuid on scripts? */
-
- /* This code is for those BSD systems that have setuid #! scripts disabled
- * in the kernel because of a security problem. Merely defining DOSUID
- * in perl will not fix that problem, but if you have disabled setuid
- * scripts in the kernel, this will attempt to emulate setuid and setgid
- * on scripts that have those now-otherwise-useless bits set. The setuid
- * root version must be called suidperl or sperlN.NNN. If regular perl
- * discovers that it has opened a setuid script, it calls suidperl with
- * the same argv that it had. If suidperl finds that the script it has
- * just opened is NOT setuid root, it sets the effective uid back to the
- * uid. We don't just make perl setuid root because that loses the
- * effective uid we had before invoking perl, if it was different from the
- * uid.
- * PSz 27 Feb 04
- * Description/comments above do not match current workings:
- * suidperl must be hardlinked to sperlN.NNN (that is what we exec);
- * suidperl called with script open and name changed to /dev/fd/N/X;
- * suidperl croaks if script is not setuid;
- * making perl setuid would be a huge security risk (and yes, that
- * would lose any euid we might have had).
- *
- * DOSUID must be defined in both perl and suidperl, and IAMSUID must
- * be defined in suidperl only. suidperl must be setuid root. The
- * Configure script will set this up for you if you want it.
- */
-
-#ifdef DOSUID
- char *s, *s2;
-
- if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
- Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename);
- if (PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
- I32 len;
- STRLEN n_a;
-
-#ifdef IAMSUID
- if (PL_fdscript < 0 || PL_suidscript != 1)
- Perl_croak(aTHX_ "Need (suid) fdscript in suidperl\n"); /* We already checked this */
- /* PSz 11 Nov 03
- * Since the script is opened by perl, not suidperl, some of these
- * checks are superfluous. Leaving them in probably does not lower
- * security(?!).
- */
- /* PSz 27 Feb 04
- * Do checks even for systems with no HAS_SETREUID.
- * We used to swap, then re-swap UIDs with
-#ifdef HAS_SETREUID
- if (setreuid(PL_euid,PL_uid) < 0
- || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
- Perl_croak(aTHX_ "Can't swap uid and euid");
-#endif
-#ifdef HAS_SETREUID
- if (setreuid(PL_uid,PL_euid) < 0
- || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
- Perl_croak(aTHX_ "Can't reswap uid and euid");
-#endif
- */
-
- /* On this access check to make sure the directories are readable,
- * there is actually a small window that the user could use to make
- * filename point to an accessible directory. So there is a faint
- * chance that someone could execute a setuid script down in a
- * non-accessible directory. I don't know what to do about that.
- * But I don't think it's too important. The manual lies when
- * it says access() is useful in setuid programs.
- *
- * So, access() is pretty useless... but not harmful... do anyway.
- */
- if (PerlLIO_access(CopFILE(PL_curcop),1)) { /*double check*/
- Perl_croak(aTHX_ "Can't access() script\n");
- }
-
- /* If we can swap euid and uid, then we can determine access rights
- * with a simple stat of the file, and then compare device and
- * inode to make sure we did stat() on the same file we opened.
- * Then we just have to make sure he or she can execute it.
- *
- * PSz 24 Feb 04
- * As the script is opened by perl, not suidperl, we do not need to
- * care much about access rights.
- *
- * The 'script changed' check is needed, or we can get lied to
- * about $0 with e.g.
- * suidperl /dev/fd/4//bin/x 4<setuidscript
- * Without HAS_SETREUID, is it safe to stat() as root?
- *
- * Are there any operating systems that pass /dev/fd/xxx for setuid
- * scripts, as suggested/described in perlsec(1)? Surely they do not
- * pass the script name as we do, so the "script changed" test would
- * fail for them... but we never get here with
- * SETUID_SCRIPTS_ARE_SECURE_NOW defined.
- *
- * This is one place where we must "lie" about return status: not
- * say if the stat() failed. We are doing this as root, and could
- * be tricked into reporting existence or not of files that the
- * "plain" user cannot even see.
- */
- {
- Stat_t tmpstatbuf;
- if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0 ||
- tmpstatbuf.st_dev != PL_statbuf.st_dev ||
- tmpstatbuf.st_ino != PL_statbuf.st_ino) {
- Perl_croak(aTHX_ "Setuid script changed\n");
- }
-
- }
- if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
- Perl_croak(aTHX_ "Real UID cannot exec script\n");
-
- /* PSz 27 Feb 04
- * We used to do this check as the "plain" user (after swapping
- * UIDs). But the check for nosuid and noexec filesystem is needed,
- * and should be done even without HAS_SETREUID. (Maybe those
- * operating systems do not have such mount options anyway...)
- * Seems safe enough to do as root.
- */
-#if !defined(NO_NOSUID_CHECK)
- if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) {
- Perl_croak(aTHX_ "Setuid script on nosuid or noexec filesystem\n");
- }
-#endif
-#endif /* IAMSUID */
-
- if (!S_ISREG(PL_statbuf.st_mode)) {
- Perl_croak(aTHX_ "Setuid script not plain file\n");
- }
- if (PL_statbuf.st_mode & S_IWOTH)
- Perl_croak(aTHX_ "Setuid/gid script is writable by world");
- PL_doswitches = FALSE; /* -s is insecure in suid */
- /* PSz 13 Nov 03 But -s was caught elsewhere ... so unsetting it here is useless(?!) */
- CopLINE_inc(PL_curcop);
- if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
- strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
- Perl_croak(aTHX_ "No #! line");
- s = SvPV(PL_linestr,n_a)+2;
- /* PSz 27 Feb 04 */
- /* Sanity check on line length */
- if (strlen(s) < 1 || strlen(s) > 4000)
- Perl_croak(aTHX_ "Very long #! line");
- /* Allow more than a single space after #! */
- while (isSPACE(*s)) s++;
- /* Sanity check on buffer end */
- while ((*s) && !isSPACE(*s)) s++;
- for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
- (isDIGIT(s2[-1]) || s2[-1] == '.' || s2[-1] == '_'
- || s2[-1] == '-')); s2--) ;
- /* Sanity check on buffer start */
- if ( (s2-4 < SvPV(PL_linestr,n_a)+2 || strnNE(s2-4,"perl",4)) &&
- (s-9 < SvPV(PL_linestr,n_a)+2 || strnNE(s-9,"perl",4)) )
- Perl_croak(aTHX_ "Not a perl script");
- while (*s == ' ' || *s == '\t') s++;
- /*
- * #! arg must be what we saw above. They can invoke it by
- * mentioning suidperl explicitly, but they may not add any strange
- * arguments beyond what #! says if they do invoke suidperl that way.
- */
- /*
- * The way validarg was set up, we rely on the kernel to start
- * scripts with argv[1] set to contain all #! line switches (the
- * whole line).
- */
- /*
- * Check that we got all the arguments listed in the #! line (not
- * just that there are no extraneous arguments). Might not matter
- * much, as switches from #! line seem to be acted upon (also), and
- * so may be checked and trapped in perl. But, security checks must
- * be done in suidperl and not deferred to perl. Note that suidperl
- * does not get around to parsing (and checking) the switches on
- * the #! line (but execs perl sooner).
- * Allow (require) a trailing newline (which may be of two
- * characters on some architectures?) (but no other trailing
- * whitespace).
- */
- len = strlen(validarg);
- if (strEQ(validarg," PHOOEY ") ||
- strnNE(s,validarg,len) || !isSPACE(s[len]) ||
- !(strlen(s) == len+1 || (strlen(s) == len+2 && isSPACE(s[len+1]))))
- Perl_croak(aTHX_ "Args must match #! line");
-
-#ifndef IAMSUID
- if (PL_fdscript < 0 &&
- PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
- PL_euid == PL_statbuf.st_uid)
- if (!PL_do_undump)
- Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
-FIX YOUR KERNEL, OR PUT A C WRAPPER AROUND THIS SCRIPT!\n");
-#endif /* IAMSUID */
-
- if (PL_fdscript < 0 &&
- PL_euid) { /* oops, we're not the setuid root perl */
- /* PSz 18 Feb 04
- * When root runs a setuid script, we do not go through the same
- * steps of execing sperl and then perl with fd scripts, but
- * simply set up UIDs within the same perl invocation; so do
- * not have the same checks (on options, whatever) that we have
- * for plain users. No problem really: would have to be a script
- * that does not actually work for plain users; and if root is
- * foolish and can be persuaded to run such an unsafe script, he
- * might run also non-setuid ones, and deserves what he gets.
- *
- * Or, we might drop the PL_euid check above (and rely just on
- * PL_fdscript to avoid loops), and do the execs
- * even for root.
- */
-#ifndef IAMSUID
- int which;
- /* PSz 11 Nov 03
- * Pass fd script to suidperl.
- * Exec suidperl, substituting fd script for scriptname.
- * Pass script name as "subdir" of fd, which perl will grok;
- * in fact will use that to distinguish this from "normal"
- * usage, see comments above.
- */
- PerlIO_rewind(PL_rsfp);
- PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
- /* PSz 27 Feb 04 Sanity checks on scriptname */
- if ((!scriptname) || (!*scriptname) ) {
- Perl_croak(aTHX_ "No setuid script name\n");
- }
- if (*scriptname == '-') {
- Perl_croak(aTHX_ "Setuid script name may not begin with dash\n");
- /* Or we might confuse it with an option when replacing
- * name in argument list, below (though we do pointer, not
- * string, comparisons).
- */
- }
- for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
- if (!PL_origargv[which]) {
- Perl_croak(aTHX_ "Can't change argv to have fd script\n");
- }
- PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s",
- PerlIO_fileno(PL_rsfp), PL_origargv[which]));
-#if defined(HAS_FCNTL) && defined(F_SETFD)
- fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
-#endif
- PERL_FPU_PRE_EXEC
- PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP,
- (int)PERL_REVISION, (int)PERL_VERSION,
- (int)PERL_SUBVERSION), PL_origargv);
- PERL_FPU_POST_EXEC
-#endif /* IAMSUID */
- Perl_croak(aTHX_ "Can't do setuid (cannot exec sperl)\n");
- }
-
- if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
-/* PSz 26 Feb 04
- * This seems back to front: we try HAS_SETEGID first; if not available
- * then try HAS_SETREGID; as a last chance we try HAS_SETRESGID. May be OK
- * in the sense that we only want to set EGID; but are there any machines
- * with either of the latter, but not the former? Same with UID, later.
- */
-#ifdef HAS_SETEGID
- (void)setegid(PL_statbuf.st_gid);
-#else
-#ifdef HAS_SETREGID
- (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
-#else
-#ifdef HAS_SETRESGID
- (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
-#else
- PerlProc_setgid(PL_statbuf.st_gid);
-#endif
-#endif
-#endif
- if (PerlProc_getegid() != PL_statbuf.st_gid)
- Perl_croak(aTHX_ "Can't do setegid!\n");
- }
- if (PL_statbuf.st_mode & S_ISUID) {
- if (PL_statbuf.st_uid != PL_euid)
-#ifdef HAS_SETEUID
- (void)seteuid(PL_statbuf.st_uid); /* all that for this */
-#else
-#ifdef HAS_SETREUID
- (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
-#else
-#ifdef HAS_SETRESUID
- (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
-#else
- PerlProc_setuid(PL_statbuf.st_uid);
-#endif
-#endif
-#endif
- if (PerlProc_geteuid() != PL_statbuf.st_uid)
- Perl_croak(aTHX_ "Can't do seteuid!\n");
- }
- else if (PL_uid) { /* oops, mustn't run as root */
-#ifdef HAS_SETEUID
- (void)seteuid((Uid_t)PL_uid);
-#else
-#ifdef HAS_SETREUID
- (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
-#else
-#ifdef HAS_SETRESUID
- (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
-#else
- PerlProc_setuid((Uid_t)PL_uid);
-#endif
-#endif
-#endif
- if (PerlProc_geteuid() != PL_uid)
- Perl_croak(aTHX_ "Can't do seteuid!\n");
- }
- init_ids();
- if (!cando(S_IXUSR,TRUE,&PL_statbuf))
- Perl_croak(aTHX_ "Effective UID cannot exec script\n"); /* they can't do this */
- }
-#ifdef IAMSUID
- else if (PL_preprocess) /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */
- Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n");
- else if (PL_fdscript < 0 || PL_suidscript != 1)
- /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */
- Perl_croak(aTHX_ "(suid) fdscript needed in suidperl\n");
- else {
-/* PSz 16 Sep 03 Keep neat error message */
- Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n");
- }
-
- /* We absolutely must clear out any saved ids here, so we */
- /* exec the real perl, substituting fd script for scriptname. */
- /* (We pass script name as "subdir" of fd, which perl will grok.) */
- /*
- * It might be thought that using setresgid and/or setresuid (changed to
- * set the saved IDs) above might obviate the need to exec, and we could
- * go on to "do the perl thing".
- *
- * Is there such a thing as "saved GID", and is that set for setuid (but
- * not setgid) execution like suidperl? Without exec, it would not be
- * cleared for setuid (but not setgid) scripts (or might need a dummy
- * setresgid).
- *
- * We need suidperl to do the exact same argument checking that perl
- * does. Thus it cannot be very small; while it could be significantly
- * smaller, it is safer (simpler?) to make it essentially the same
- * binary as perl (but they are not identical). - Maybe could defer that
- * check to the invoked perl, and suidperl be a tiny wrapper instead;
- * but prefer to do thorough checks in suidperl itself. Such deferral
- * would make suidperl security rely on perl, a design no-no.
- *
- * Setuid things should be short and simple, thus easy to understand and
- * verify. They should do their "own thing", without influence by
- * attackers. It may help if their internal execution flow is fixed,
- * regardless of platform: it may be best to exec anyway.
- *
- * Suidperl should at least be conceptually simple: a wrapper only,
- * never to do any real perl. Maybe we should put
- * #ifdef IAMSUID
- * Perl_croak(aTHX_ "Suidperl should never do real perl\n");
- * #endif
- * into the perly bits.
- */
- PerlIO_rewind(PL_rsfp);
- PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
- /* PSz 11 Nov 03
- * Keep original arguments: suidperl already has fd script.
- */
-/* for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; */
-/* if (!PL_origargv[which]) { */
-/* errno = EPERM; */
-/* Perl_croak(aTHX_ "Permission denied\n"); */
-/* } */
-/* PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", */
-/* PerlIO_fileno(PL_rsfp), PL_origargv[which])); */
-#if defined(HAS_FCNTL) && defined(F_SETFD)
- fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
-#endif
- PERL_FPU_PRE_EXEC
- PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP,
- (int)PERL_REVISION, (int)PERL_VERSION,
- (int)PERL_SUBVERSION), PL_origargv);/* try again */
- PERL_FPU_POST_EXEC
- Perl_croak(aTHX_ "Can't do setuid (suidperl cannot exec perl)\n");
-#endif /* IAMSUID */
-#else /* !DOSUID */
- if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
-#ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
- PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
- if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
- ||
- (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
- )
- if (!PL_do_undump)
- Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
-FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
-#endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
- /* not set-id, must be wrapped */
- }
-#endif /* DOSUID */
- (void)validarg;
- (void)scriptname;
-}
-
-STATIC void
-S_find_beginning(pTHX)
-{
- register char *s;
+ const char *s;
register const char *s2;
-#ifdef MACOS_TRADITIONAL
- int maclines = 0;
-#endif
- /* skip forward in input to the real script? */
-
- forbid_setid("-x");
-#ifdef MACOS_TRADITIONAL
- /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */
-
- while (PL_doextract || gMacPerl_AlwaysExtract) {
- if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) {
- if (!gMacPerl_AlwaysExtract)
- Perl_croak(aTHX_ "No Perl script found in input\n");
-
- if (PL_doextract) /* require explicit override ? */
- if (!OverrideExtract(PL_origfilename))
- Perl_croak(aTHX_ "User aborted script\n");
- else
- PL_doextract = FALSE;
+ PERL_ARGS_ASSERT_FIND_BEGINNING;
- /* Pater peccavi, file does not have #! */
- PerlIO_rewind(PL_rsfp);
+ /* skip forward in input to the real script? */
- break;
- }
-#else
while (PL_doextract) {
- if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
+ if ((s = sv_gets(linestr_sv, rsfp, 0)) == NULL)
Perl_croak(aTHX_ "No Perl script found in input\n");
-#endif
s2 = s;
if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) {
- PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
+ PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */
PL_doextract = FALSE;
while (*s && !(isSPACE (*s) || *s == '#')) s++;
s2 = s;
while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.'
|| s2[-1] == '_') s2--;
if (strnEQ(s2-4,"perl",4))
- /*SUPPRESS 530*/
while ((s = moreswitches(s)))
;
}
-#ifdef MACOS_TRADITIONAL
- /* We are always searching for the #!perl line in MacPerl,
- * so if we find it, still keep the line count correct
- * by counting lines we already skipped over
- */
- for (; maclines > 0 ; maclines--)
- PerlIO_ungetc(PL_rsfp, '\n');
-
- break;
-
- /* gMacPerl_AlwaysExtract is false in MPW tool */
- } else if (gMacPerl_AlwaysExtract) {
- ++maclines;
-#endif
}
}
}
STATIC void
S_init_ids(pTHX)
{
+ dVAR;
PL_uid = PerlProc_getuid();
PL_euid = PerlProc_geteuid();
PL_gid = PerlProc_getgid();
return 0;
}
+/* Passing the flag as a single char rather than a string is a slight space
+ optimisation. The only message that isn't /^-.$/ is
+ "program input from stdin", which is substituted in place of '\0', which
+ could never be a command line flag. */
STATIC void
-S_forbid_setid(pTHX_ const char *s)
+S_forbid_setid(pTHX_ const char flag, const bool suidscript) /* g */
{
+ dVAR;
+ char string[3] = "-x";
+ const char *message = "program input from stdin";
+
+ if (flag) {
+ string[1] = flag;
+ message = string;
+ }
+
#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
if (PL_euid != PL_uid)
- Perl_croak(aTHX_ "No %s allowed while running setuid", s);
+ Perl_croak(aTHX_ "No %s allowed while running setuid", message);
if (PL_egid != PL_gid)
- Perl_croak(aTHX_ "No %s allowed while running setgid", s);
+ Perl_croak(aTHX_ "No %s allowed while running setgid", message);
#endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
- /* PSz 29 Feb 04
- * Checks for UID/GID above "wrong": why disallow
- * perl -e 'print "Hello\n"'
- * from within setuid things?? Simply drop them: replaced by
- * fdscript/suidscript and #ifdef IAMSUID checks below.
- *
- * This may be too late for command-line switches. Will catch those on
- * the #! line, after finding the script name and setting up
- * fdscript/suidscript. Note that suidperl does not get around to
- * parsing (and checking) the switches on the #! line, but checks that
- * the two sets are identical.
- *
- * With SETUID_SCRIPTS_ARE_SECURE_NOW, could we use fdscript, also or
- * instead, or would that be "too late"? (We never have suidscript, can
- * we be sure to have fdscript?)
- *
- * Catch things with suidscript (in descendant of suidperl), even with
- * right UID/GID. Was already checked in suidperl, with #ifdef IAMSUID,
- * below; but I am paranoid.
- *
- * Also see comments about root running a setuid script, elsewhere.
- */
- if (PL_suidscript >= 0)
- Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", s);
-#ifdef IAMSUID
- /* PSz 11 Nov 03 Catch it in suidperl, always! */
- Perl_croak(aTHX_ "No %s allowed in suidperl", s);
-#endif /* IAMSUID */
+ if (suidscript)
+ Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", message);
}
void
Perl_init_debugger(pTHX)
{
- HV *ostash = PL_curstash;
+ dVAR;
+ HV * const ostash = PL_curstash;
PL_curstash = PL_debstash;
- PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("DB::args", GV_ADDMULTI, SVt_PVAV))));
+ PL_dbargs = GvAV(gv_AVadd((gv_fetchpvs("DB::args", GV_ADDMULTI,
+ SVt_PVAV))));
AvREAL_off(PL_dbargs);
- PL_DBgv = gv_fetchpv("DB::DB", GV_ADDMULTI, SVt_PVGV);
- PL_DBline = gv_fetchpv("DB::dbline", GV_ADDMULTI, SVt_PVAV);
- PL_DBsub = gv_HVadd(gv_fetchpv("DB::sub", GV_ADDMULTI, SVt_PVHV));
- PL_DBsingle = GvSV((gv_fetchpv("DB::single", GV_ADDMULTI, SVt_PV)));
+ PL_DBgv = gv_fetchpvs("DB::DB", GV_ADDMULTI, SVt_PVGV);
+ PL_DBline = gv_fetchpvs("DB::dbline", GV_ADDMULTI, SVt_PVAV);
+ PL_DBsub = gv_HVadd(gv_fetchpvs("DB::sub", GV_ADDMULTI, SVt_PVHV));
+ PL_DBsingle = GvSV((gv_fetchpvs("DB::single", GV_ADDMULTI, SVt_PV)));
sv_setiv(PL_DBsingle, 0);
- PL_DBtrace = GvSV((gv_fetchpv("DB::trace", GV_ADDMULTI, SVt_PV)));
+ PL_DBtrace = GvSV((gv_fetchpvs("DB::trace", GV_ADDMULTI, SVt_PV)));
sv_setiv(PL_DBtrace, 0);
- PL_DBsignal = GvSV((gv_fetchpv("DB::signal", GV_ADDMULTI, SVt_PV)));
+ PL_DBsignal = GvSV((gv_fetchpvs("DB::signal", GV_ADDMULTI, SVt_PV)));
sv_setiv(PL_DBsignal, 0);
- PL_DBassertion = GvSV((gv_fetchpv("DB::assertion", GV_ADDMULTI, SVt_PV)));
- sv_setiv(PL_DBassertion, 0);
PL_curstash = ostash;
}
void
Perl_init_stacks(pTHX)
{
+ dVAR;
/* start with 128-item stack and 8K cxstack */
PL_curstackinfo = new_stackinfo(REASONABLE(128),
REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
PL_stack_sp = PL_stack_base;
PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
- New(50,PL_tmps_stack,REASONABLE(128),SV*);
+ Newx(PL_tmps_stack,REASONABLE(128),SV*);
PL_tmps_floor = -1;
PL_tmps_ix = -1;
PL_tmps_max = REASONABLE(128);
- New(54,PL_markstack,REASONABLE(32),I32);
+ Newx(PL_markstack,REASONABLE(32),I32);
PL_markstack_ptr = PL_markstack;
PL_markstack_max = PL_markstack + REASONABLE(32);
SET_MARK_OFFSET;
- New(54,PL_scopestack,REASONABLE(32),I32);
+ Newx(PL_scopestack,REASONABLE(32),I32);
+#ifdef DEBUGGING
+ Newx(PL_scopestack_name,REASONABLE(32),const char*);
+#endif
PL_scopestack_ix = 0;
PL_scopestack_max = REASONABLE(32);
- New(54,PL_savestack,REASONABLE(128),ANY);
+ Newx(PL_savestack,REASONABLE(128),ANY);
PL_savestack_ix = 0;
PL_savestack_max = REASONABLE(128);
}
STATIC void
S_nuke_stacks(pTHX)
{
+ dVAR;
while (PL_curstackinfo->si_next)
PL_curstackinfo = PL_curstackinfo->si_next;
while (PL_curstackinfo) {
Safefree(PL_tmps_stack);
Safefree(PL_markstack);
Safefree(PL_scopestack);
+#ifdef DEBUGGING
+ Safefree(PL_scopestack_name);
+#endif
Safefree(PL_savestack);
}
-STATIC void
-S_init_lexer(pTHX)
-{
- PerlIO *tmpfp;
- tmpfp = PL_rsfp;
- PL_rsfp = Nullfp;
- lex_start(PL_linestr);
- PL_rsfp = tmpfp;
- PL_subname = newSVpvn("main",4);
-}
STATIC void
S_init_predump_symbols(pTHX)
{
+ dVAR;
GV *tmpgv;
IO *io;
+ AV *isa;
+
+ sv_setpvs(get_sv("\"", GV_ADD), " ");
+ PL_ofsgv = (GV*)SvREFCNT_inc(gv_fetchpvs(",", GV_ADD|GV_NOTQUAL, SVt_PV));
+
+
+ /* Historically, PVIOs were blessed into IO::Handle, unless
+ FileHandle was loaded, in which case they were blessed into
+ that. Action at a distance.
+ However, if we simply bless into IO::Handle, we break code
+ that assumes that PVIOs will have (among others) a seek
+ method. IO::File inherits from IO::Handle and IO::Seekable,
+ and provides the needed methods. But if we simply bless into
+ it, then we break code that assumed that by loading
+ IO::Handle, *it* would work.
+ So a compromise is to set up the correct @IO::File::ISA,
+ so that code that does C<use IO::Handle>; will still work.
+ */
+
+ isa = get_av("IO::File::ISA", GV_ADD | GV_ADDMULTI);
+ av_push(isa, newSVpvs("IO::Handle"));
+ av_push(isa, newSVpvs("IO::Seekable"));
+ av_push(isa, newSVpvs("Exporter"));
+ (void) gv_fetchpvs("IO::Handle::", GV_ADD, SVt_PVGV);
+ (void) gv_fetchpvs("IO::Seekable::", GV_ADD, SVt_PVGV);
+ (void) gv_fetchpvs("Exporter::", GV_ADD, SVt_PVGV);
- sv_setpvn(get_sv("\"", TRUE), " ", 1);
- PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
+
+ PL_stdingv = gv_fetchpvs("STDIN", GV_ADD|GV_NOTQUAL, SVt_PVIO);
GvMULTI_on(PL_stdingv);
io = GvIOp(PL_stdingv);
IoTYPE(io) = IoTYPE_RDONLY;
IoIFP(io) = PerlIO_stdin();
- tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
+ tmpgv = gv_fetchpvs("stdin", GV_ADD|GV_NOTQUAL, SVt_PV);
GvMULTI_on(tmpgv);
- GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
+ GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io));
- tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
+ tmpgv = gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
GvMULTI_on(tmpgv);
io = GvIOp(tmpgv);
IoTYPE(io) = IoTYPE_WRONLY;
IoOFP(io) = IoIFP(io) = PerlIO_stdout();
setdefout(tmpgv);
- tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
+ tmpgv = gv_fetchpvs("stdout", GV_ADD|GV_NOTQUAL, SVt_PV);
GvMULTI_on(tmpgv);
- GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
+ GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io));
- PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
+ PL_stderrgv = gv_fetchpvs("STDERR", GV_ADD|GV_NOTQUAL, SVt_PVIO);
GvMULTI_on(PL_stderrgv);
io = GvIOp(PL_stderrgv);
IoTYPE(io) = IoTYPE_WRONLY;
IoOFP(io) = IoIFP(io) = PerlIO_stderr();
- tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
+ tmpgv = gv_fetchpvs("stderr", GV_ADD|GV_NOTQUAL, SVt_PV);
GvMULTI_on(tmpgv);
- GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
-
- PL_statname = NEWSV(66,0); /* last filename we did stat on */
+ GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io));
- if (PL_osname)
- Safefree(PL_osname);
- PL_osname = savepv(OSNAME);
+ PL_statname = newSV(0); /* last filename we did stat on */
}
void
Perl_init_argv_symbols(pTHX_ register int argc, register char **argv)
{
- char *s;
+ dVAR;
+
+ PERL_ARGS_ASSERT_INIT_ARGV_SYMBOLS;
+
argc--,argv++; /* skip name of script */
if (PL_doswitches) {
for (; argc > 0 && **argv == '-'; argc--,argv++) {
+ char *s;
if (!argv[0][1])
break;
if (argv[0][1] == '-' && !argv[0][2]) {
break;
}
if ((s = strchr(argv[0], '='))) {
- *s++ = '\0';
- sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
+ const char *const start_name = argv[0] + 1;
+ sv_setpv(GvSV(gv_fetchpvn_flags(start_name, s - start_name,
+ TRUE, SVt_PV)), s + 1);
}
else
- sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
+ sv_setiv(GvSV(gv_fetchpv(argv[0]+1, GV_ADD, SVt_PV)),1);
}
}
- if ((PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV))) {
+ if ((PL_argvgv = gv_fetchpvs("ARGV", GV_ADD|GV_NOTQUAL, SVt_PVAV))) {
GvMULTI_on(PL_argvgv);
(void)gv_AVadd(PL_argvgv);
av_clear(GvAVn(PL_argvgv));
for (; argc > 0; argc--,argv++) {
- SV *sv = newSVpv(argv[0],0);
+ SV * const sv = newSVpv(argv[0],0);
av_push(GvAVn(PL_argvgv),sv);
if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
if (PL_unicode & PERL_UNICODE_ARGV_FLAG)
dVAR;
GV* tmpgv;
- PL_toptarget = NEWSV(0,0);
- sv_upgrade(PL_toptarget, SVt_PVFM);
- sv_setpvn(PL_toptarget, "", 0);
- PL_bodytarget = NEWSV(0,0);
- sv_upgrade(PL_bodytarget, SVt_PVFM);
- sv_setpvn(PL_bodytarget, "", 0);
+ PERL_ARGS_ASSERT_INIT_POSTDUMP_SYMBOLS;
+
+ PL_toptarget = newSV_type(SVt_PVFM);
+ sv_setpvs(PL_toptarget, "");
+ PL_bodytarget = newSV_type(SVt_PVFM);
+ sv_setpvs(PL_bodytarget, "");
PL_formtarget = PL_bodytarget;
TAINT;
init_argv_symbols(argc,argv);
- if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) {
-#ifdef MACOS_TRADITIONAL
- /* $0 is not majick on a Mac */
- sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename));
-#else
+ if ((tmpgv = gv_fetchpvs("0", GV_ADD|GV_NOTQUAL, SVt_PV))) {
sv_setpv(GvSV(tmpgv),PL_origfilename);
- magicname("0", "0", 1);
-#endif
}
- if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) {
+ if ((PL_envgv = gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV))) {
HV *hv;
+ bool env_is_not_environ;
GvMULTI_on(PL_envgv);
hv = GvHVn(PL_envgv);
- hv_magic(hv, Nullgv, PERL_MAGIC_env);
+ hv_magic(hv, NULL, PERL_MAGIC_env);
#ifndef PERL_MICRO
#ifdef USE_ENVIRON_ARRAY
/* Note that if the supplied env parameter is actually a copy
*/
if (!env)
env = environ;
- if (env != environ
+ env_is_not_environ = env != environ;
+ if (env_is_not_environ
# ifdef USE_ITHREADS
&& PL_curinterp == aTHX
# endif
)
{
- environ[0] = Nullch;
+ environ[0] = NULL;
}
if (env) {
- char** origenv = environ;
- char *s;
+ char *s, *old_var;
SV *sv;
for (; *env; env++) {
- if (!(s = strchr(*env,'=')) || s == *env)
+ old_var = *env;
+
+ if (!(s = strchr(old_var,'=')) || s == old_var)
continue;
+
#if defined(MSDOS) && !defined(DJGPP)
*s = '\0';
- (void)strupr(*env);
+ (void)strupr(old_var);
*s = '=';
#endif
sv = newSVpv(s+1, 0);
- (void)hv_store(hv, *env, s - *env, sv, 0);
- if (env != environ)
+ (void)hv_store(hv, old_var, s - old_var, sv, 0);
+ if (env_is_not_environ)
mg_set(sv);
- if (origenv != environ) {
- /* realloc has shifted us */
- env = (env - origenv) + environ;
- origenv = environ;
- }
}
}
#endif /* USE_ENVIRON_ARRAY */
#endif /* !PERL_MICRO */
}
TAINT_NOT;
- if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) {
+ if ((tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV))) {
SvREADONLY_off(GvSV(tmpgv));
sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
SvREADONLY_on(GvSV(tmpgv));
/* touch @F array to prevent spurious warnings 20020415 MJD */
if (PL_minus_a) {
- (void) get_av("main::F", TRUE | GV_ADDMULTI);
+ (void) get_av("main::F", GV_ADD | GV_ADDMULTI);
}
- /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */
- (void) get_av("main::-", TRUE | GV_ADDMULTI);
- (void) get_av("main::+", TRUE | GV_ADDMULTI);
}
STATIC void
S_init_perllib(pTHX)
{
- char *s;
+ dVAR;
+#ifndef VMS
+ const char *perl5lib = NULL;
+#endif
+ const char *s;
+#if defined(WIN32) && !defined(PERL_IS_MINIPERL)
+ STRLEN len;
+#endif
+
if (!PL_tainting) {
#ifndef VMS
- s = PerlEnv_getenv("PERL5LIB");
- if (s)
- incpush(s, TRUE, TRUE, TRUE, FALSE);
- else
- incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE, FALSE);
+ perl5lib = PerlEnv_getenv("PERL5LIB");
+/*
+ * It isn't possible to delete an environment variable with
+ * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that
+ * case we treat PERL5LIB as undefined if it has a zero-length value.
+ */
+#if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV)
+ if (perl5lib && *perl5lib != '\0')
+#else
+ if (perl5lib)
+#endif
+ incpush_use_sep(perl5lib, 0, INCPUSH_ADD_SUB_DIRS);
+ else {
+ s = PerlEnv_getenv("PERLLIB");
+ if (s)
+ incpush_use_sep(s, 0, 0);
+ }
#else /* VMS */
/* Treat PERL5?LIB as a possible search list logical name -- the
* "natural" VMS idiom for a Unix path string. We allow each
char buf[256];
int idx = 0;
if (my_trnlnm("PERL5LIB",buf,0))
- do { incpush(buf,TRUE,TRUE,TRUE,FALSE); } while (my_trnlnm("PERL5LIB",buf,++idx));
- else
- while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE,FALSE);
+ do {
+ incpush_use_sep(buf, 0, INCPUSH_ADD_SUB_DIRS);
+ } while (my_trnlnm("PERL5LIB",buf,++idx));
+ else {
+ while (my_trnlnm("PERLLIB",buf,idx++))
+ incpush_use_sep(buf, 0, 0);
+ }
#endif /* VMS */
}
+#ifndef PERL_IS_MINIPERL
+ /* miniperl gets just -I..., the split of $ENV{PERL5LIB}, and "." in @INC
+ (and not the architecture specific directories from $ENV{PERL5LIB}) */
+
/* Use the ~-expanded versions of APPLLIB (undocumented),
- ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
+ SITEARCH, SITELIB, VENDORARCH, VENDORLIB, ARCHLIB and PRIVLIB
*/
#ifdef APPLLIB_EXP
- incpush(APPLLIB_EXP, TRUE, TRUE, TRUE, TRUE);
-#endif
-
-#ifdef ARCHLIB_EXP
- incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE, TRUE);
-#endif
-#ifdef MACOS_TRADITIONAL
- {
- Stat_t tmpstatbuf;
- SV * privdir = NEWSV(55, 0);
- char * macperl = PerlEnv_getenv("MACPERL");
-
- if (!macperl)
- macperl = "";
-
- Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl);
- if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
- incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE);
- Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl);
- if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
- incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE);
-
- SvREFCNT_dec(privdir);
- }
- if (!PL_tainting)
- incpush(":", FALSE, FALSE, TRUE, FALSE);
-#else
-#ifndef PRIVLIB_EXP
-# define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
-#endif
-#if defined(WIN32)
- incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE, TRUE);
-#else
- incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE, TRUE);
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP),
+ INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
#endif
#ifdef SITEARCH_EXP
/* sitearch is always relative to sitelib on Windows for
* DLL-based path intuition to work correctly */
# if !defined(WIN32)
- incpush(SITEARCH_EXP, FALSE, FALSE, TRUE, TRUE);
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITEARCH_EXP),
+ INCPUSH_CAN_RELOCATE);
# endif
#endif
#ifdef SITELIB_EXP
# if defined(WIN32)
/* this picks up sitearch as well */
- incpush(SITELIB_EXP, TRUE, FALSE, TRUE, TRUE);
+ s = win32_get_sitelib(PERL_FS_VERSION, &len);
+ if (s)
+ incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
# else
- incpush(SITELIB_EXP, FALSE, FALSE, TRUE, TRUE);
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITELIB_EXP), INCPUSH_CAN_RELOCATE);
# endif
#endif
-#ifdef SITELIB_STEM /* Search for version-specific dirs below here */
- incpush(SITELIB_STEM, FALSE, TRUE, TRUE, TRUE);
-#endif
-
#ifdef PERL_VENDORARCH_EXP
/* vendorarch is always relative to vendorlib on Windows for
* DLL-based path intuition to work correctly */
# if !defined(WIN32)
- incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE, TRUE);
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORARCH_EXP),
+ INCPUSH_CAN_RELOCATE);
# endif
#endif
#ifdef PERL_VENDORLIB_EXP
# if defined(WIN32)
- incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE, TRUE); /* this picks up vendorarch as well */
+ /* this picks up vendorarch as well */
+ s = win32_get_vendorlib(PERL_FS_VERSION, &len);
+ if (s)
+ incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
# else
- incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE, TRUE);
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORLIB_EXP),
+ INCPUSH_CAN_RELOCATE);
# endif
#endif
-#ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */
- incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE, TRUE);
+#ifdef ARCHLIB_EXP
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(ARCHLIB_EXP), INCPUSH_CAN_RELOCATE);
+#endif
+
+#ifndef PRIVLIB_EXP
+# define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
+#endif
+
+#if defined(WIN32)
+ s = win32_get_privlib(PERL_FS_VERSION, &len);
+ if (s)
+ incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
+#else
+# ifdef NETWARE
+ S_incpush_use_sep(aTHX_ PRIVLIB_EXP, 0, INCPUSH_CAN_RELOCATE);
+# else
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(PRIVLIB_EXP), INCPUSH_CAN_RELOCATE);
+# endif
#endif
#ifdef PERL_OTHERLIBDIRS
- incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE, TRUE);
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_OTHERLIBDIRS),
+ INCPUSH_ADD_VERSIONED_SUB_DIRS|INCPUSH_NOT_BASEDIR
+ |INCPUSH_CAN_RELOCATE);
#endif
+ if (!PL_tainting) {
+#ifndef VMS
+/*
+ * It isn't possible to delete an environment variable with
+ * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that
+ * case we treat PERL5LIB as undefined if it has a zero-length value.
+ */
+#if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV)
+ if (perl5lib && *perl5lib != '\0')
+#else
+ if (perl5lib)
+#endif
+ incpush_use_sep(perl5lib, 0,
+ INCPUSH_ADD_OLD_VERS|INCPUSH_NOT_BASEDIR);
+#else /* VMS */
+ /* Treat PERL5?LIB as a possible search list logical name -- the
+ * "natural" VMS idiom for a Unix path string. We allow each
+ * element to be a set of |-separated directories for compatibility.
+ */
+ char buf[256];
+ int idx = 0;
+ if (my_trnlnm("PERL5LIB",buf,0))
+ do {
+ incpush_use_sep(buf, 0,
+ INCPUSH_ADD_OLD_VERS|INCPUSH_NOT_BASEDIR);
+ } while (my_trnlnm("PERL5LIB",buf,++idx));
+#endif /* VMS */
+ }
+
+/* Use the ~-expanded versions of APPLLIB (undocumented),
+ SITELIB and VENDORLIB for older versions
+*/
+#ifdef APPLLIB_EXP
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP), INCPUSH_ADD_OLD_VERS
+ |INCPUSH_NOT_BASEDIR|INCPUSH_CAN_RELOCATE);
+#endif
+
+#if defined(SITELIB_STEM) && defined(PERL_INC_VERSION_LIST)
+ /* Search for version-specific dirs below here */
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITELIB_STEM),
+ INCPUSH_ADD_OLD_VERS|INCPUSH_CAN_RELOCATE);
+#endif
+
+
+#if defined(PERL_VENDORLIB_STEM) && defined(PERL_INC_VERSION_LIST)
+ /* Search for version-specific dirs below here */
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORLIB_STEM),
+ INCPUSH_ADD_OLD_VERS|INCPUSH_CAN_RELOCATE);
+#endif
+
+#ifdef PERL_OTHERLIBDIRS
+ S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_OTHERLIBDIRS),
+ INCPUSH_ADD_OLD_VERS|INCPUSH_ADD_ARCHONLY_SUB_DIRS
+ |INCPUSH_CAN_RELOCATE);
+#endif
+#endif /* !PERL_IS_MINIPERL */
+
if (!PL_tainting)
- incpush(".", FALSE, FALSE, TRUE, FALSE);
-#endif /* MACOS_TRADITIONAL */
+ S_incpush(aTHX_ STR_WITH_LEN("."), 0);
}
-#if defined(DOSISH) || defined(EPOC) || defined(SYMBIAN)
+#if defined(DOSISH) || defined(EPOC) || defined(__SYMBIAN32__)
# define PERLLIB_SEP ';'
#else
# if defined(VMS)
# define PERLLIB_SEP '|'
# else
-# if defined(MACOS_TRADITIONAL)
-# define PERLLIB_SEP ','
-# else
-# define PERLLIB_SEP ':'
-# endif
+# define PERLLIB_SEP ':'
# endif
#endif
#ifndef PERLLIB_MANGLE
Generate a new SV if we do this, to save needing to copy the SV we push
onto @INC */
STATIC SV *
-S_incpush_if_exists(pTHX_ SV *dir)
+S_incpush_if_exists(pTHX_ AV *const av, SV *dir, SV *const stem)
{
+ dVAR;
Stat_t tmpstatbuf;
- if (PerlLIO_stat(SvPVX(dir), &tmpstatbuf) >= 0 &&
+
+ PERL_ARGS_ASSERT_INCPUSH_IF_EXISTS;
+
+ if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 &&
S_ISDIR(tmpstatbuf.st_mode)) {
- av_push(GvAVn(PL_incgv), dir);
- dir = NEWSV(0,0);
+ av_push(av, dir);
+ dir = newSVsv(stem);
+ } else {
+ /* Truncate dir back to stem. */
+ SvCUR_set(dir, SvCUR(stem));
}
return dir;
}
STATIC void
-S_incpush(pTHX_ const char *dir, bool addsubdirs, bool addoldvers, bool usesep,
- bool canrelocate)
+S_incpush(pTHX_ const char *const dir, STRLEN len, U32 flags)
{
- SV *subdir = Nullsv;
- const char *p = dir;
-
- if (!p || !*p)
- return;
-
- if (addsubdirs || addoldvers) {
- subdir = NEWSV(0,0);
- }
-
- /* Break at all separators */
- while (p && *p) {
- SV *libdir = NEWSV(55,0);
- const char *s;
-
- /* skip any consecutive separators */
- if (usesep) {
- while ( *p == PERLLIB_SEP ) {
- /* Uncomment the next line for PATH semantics */
- /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */
- p++;
- }
- }
+ dVAR;
+ const U8 using_sub_dirs
+ = (U8)flags & (INCPUSH_ADD_VERSIONED_SUB_DIRS
+ |INCPUSH_ADD_ARCHONLY_SUB_DIRS|INCPUSH_ADD_OLD_VERS);
+ const U8 add_versioned_sub_dirs
+ = (U8)flags & INCPUSH_ADD_VERSIONED_SUB_DIRS;
+ const U8 add_archonly_sub_dirs
+ = (U8)flags & INCPUSH_ADD_ARCHONLY_SUB_DIRS;
+#ifdef PERL_INC_VERSION_LIST
+ const U8 addoldvers = (U8)flags & INCPUSH_ADD_OLD_VERS;
+#endif
+ const U8 canrelocate = (U8)flags & INCPUSH_CAN_RELOCATE;
+ const U8 unshift = (U8)flags & INCPUSH_UNSHIFT;
+ const U8 push_basedir = (flags & INCPUSH_NOT_BASEDIR) ? 0 : 1;
+ AV *const inc = GvAVn(PL_incgv);
- if ( usesep && (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
- sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
- (STRLEN)(s - p));
- p = s + 1;
- }
- else {
- sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
- p = Nullch; /* break out */
- }
-#ifdef MACOS_TRADITIONAL
- if (!strchr(SvPVX(libdir), ':')) {
- char buf[256];
+ PERL_ARGS_ASSERT_INCPUSH;
+ assert(len > 0);
- sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0));
+ /* Could remove this vestigial extra block, if we don't mind a lot of
+ re-indenting diff noise. */
+ {
+ SV *libdir;
+ /* Change 20189146be79a0596543441fa369c6bf7f85103f, to fix RT#6665,
+ arranged to unshift #! line -I onto the front of @INC. However,
+ -I can add version and architecture specific libraries, and they
+ need to go first. The old code assumed that it was always
+ pushing. Hence to make it work, need to push the architecture
+ (etc) libraries onto a temporary array, then "unshift" that onto
+ the front of @INC. */
+ AV *const av = (using_sub_dirs) ? (unshift ? newAV() : inc) : NULL;
+
+ if (len) {
+ /* I am not convinced that this is valid when PERLLIB_MANGLE is
+ defined to so something (in os2/os2.c), but the code has been
+ this way, ignoring any possible changed of length, since
+ 760ac839baf413929cd31cc32ffd6dba6b781a81 (5.003_02) so I'll leave
+ it be. */
+ libdir = newSVpvn(PERLLIB_MANGLE(dir, len), len);
+ } else {
+ libdir = newSVpv(PERLLIB_MANGLE(dir, 0), 0);
}
- if (SvPVX(libdir)[SvCUR(libdir)-1] != ':')
- sv_catpv(libdir, ":");
-#endif
/* Do the if() outside the #ifdef to avoid warnings about an unused
parameter. */
* The intent is that /usr/local/bin/perl and .../../lib/perl5
* generates /usr/local/lib/perl5
*/
- char *libpath = SvPVX(libdir);
+ const char *libpath = SvPVX(libdir);
STRLEN libpath_len = SvCUR(libdir);
if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) {
/* Game on! */
- SV *caret_X = get_sv("\030", 0);
+ SV * const caret_X = get_sv("\030", 0);
/* Going to use the SV just as a scratch buffer holding a C
string: */
SV *prefix_sv;
SvPOK() won't be true. */
assert(caret_X);
assert(SvPOKp(caret_X));
- prefix_sv = newSVpvn(SvPVX(caret_X), SvCUR(caret_X));
+ prefix_sv = newSVpvn_flags(SvPVX(caret_X), SvCUR(caret_X),
+ SvUTF8(caret_X));
/* Firstly take off the leading .../
If all else fail we'll do the paths relative to the current
directory. */
* BEFORE pushing libdir onto @INC we may first push version- and
* archname-specific sub-directories.
*/
- if (addsubdirs || addoldvers) {
+ if (using_sub_dirs) {
+ SV *subdir;
#ifdef PERL_INC_VERSION_LIST
/* Configure terminates PERL_INC_VERSION_LIST with a NULL */
- const char *incverlist[] = { PERL_INC_VERSION_LIST };
- const char **incver;
+ const char * const incverlist[] = { PERL_INC_VERSION_LIST };
+ const char * const *incver;
#endif
#ifdef VMS
char *unix;
STRLEN len;
- if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
+
+ if ((unix = tounixspec_ts(SvPV(libdir,len),NULL)) != NULL) {
len = strlen(unix);
while (unix[len-1] == '/') len--; /* Cosmetic */
sv_usepvn(libdir,unix,len);
"Failed to unixify @INC element \"%s\"\n",
SvPV(libdir,len));
#endif
- if (addsubdirs) {
-#ifdef MACOS_TRADITIONAL
-#define PERL_AV_SUFFIX_FMT ""
-#define PERL_ARCH_FMT "%s:"
-#define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT
-#else
-#define PERL_AV_SUFFIX_FMT "/"
-#define PERL_ARCH_FMT "/%s"
-#define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT
-#endif
- /* .../version/archname if -d .../version/archname */
- Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT,
- libdir,
- (int)PERL_REVISION, (int)PERL_VERSION,
- (int)PERL_SUBVERSION, ARCHNAME);
- subdir = S_incpush_if_exists(aTHX_ subdir);
- /* .../version if -d .../version */
- Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir,
- (int)PERL_REVISION, (int)PERL_VERSION,
- (int)PERL_SUBVERSION);
- subdir = S_incpush_if_exists(aTHX_ subdir);
+ subdir = newSVsv(libdir);
- /* .../archname if -d .../archname */
- Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME);
- subdir = S_incpush_if_exists(aTHX_ subdir);
+ if (add_versioned_sub_dirs) {
+ /* .../version/archname if -d .../version/archname */
+ sv_catpvs(subdir, "/" PERL_FS_VERSION "/" ARCHNAME);
+ subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir);
+ /* .../version if -d .../version */
+ sv_catpvs(subdir, "/" PERL_FS_VERSION);
+ subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir);
}
#ifdef PERL_INC_VERSION_LIST
if (addoldvers) {
for (incver = incverlist; *incver; incver++) {
/* .../xxx if -d .../xxx */
- Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver);
- subdir = S_incpush_if_exists(aTHX_ subdir);
+ Perl_sv_catpvf(aTHX_ subdir, "/%s", *incver);
+ subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir);
}
}
#endif
+
+ if (add_archonly_sub_dirs) {
+ /* .../archname if -d .../archname */
+ sv_catpvs(subdir, "/" ARCHNAME);
+ subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir);
+
+ }
+
+ assert (SvREFCNT(subdir) == 1);
+ SvREFCNT_dec(subdir);
}
- /* finally push this lib directory on the end of @INC */
- av_push(GvAVn(PL_incgv), libdir);
- }
- if (subdir) {
- assert (SvREFCNT(subdir) == 1);
- SvREFCNT_dec(subdir);
+ /* finally add this lib directory at the end of @INC */
+ if (unshift) {
+ U32 extra = av_len(av) + 1;
+ av_unshift(inc, extra + push_basedir);
+ if (push_basedir)
+ av_store(inc, extra, libdir);
+ while (extra--) {
+ /* av owns a reference, av_store() expects to be donated a
+ reference, and av expects to be sane when it's cleared.
+ If I wanted to be naughty and wrong, I could peek inside the
+ implementation of av_clear(), realise that it uses
+ SvREFCNT_dec() too, so av's array could be a run of NULLs,
+ and so directly steal from it (with a memcpy() to inc, and
+ then memset() to NULL them out. But people copy code from the
+ core expecting it to be best practise, so let's use the API.
+ Although studious readers will note that I'm not checking any
+ return codes. */
+ av_store(inc, extra, SvREFCNT_inc(*av_fetch(av, extra, FALSE)));
+ }
+ SvREFCNT_dec(av);
+ }
+ else if (push_basedir) {
+ av_push(inc, libdir);
+ }
+
+ if (!push_basedir) {
+ assert (SvREFCNT(libdir) == 1);
+ SvREFCNT_dec(libdir);
+ }
}
}
-#ifdef USE_5005THREADS
-STATIC struct perl_thread *
-S_init_main_thread(pTHX)
+STATIC void
+S_incpush_use_sep(pTHX_ const char *p, STRLEN len, U32 flags)
{
-#if !defined(PERL_IMPLICIT_CONTEXT)
- struct perl_thread *thr;
-#endif
- XPV *xpv;
+ const char *s;
+ const char *end;
+ /* This logic has been broken out from S_incpush(). It may be possible to
+ simplify it. */
+
+ PERL_ARGS_ASSERT_INCPUSH_USE_SEP;
+
+ if (!len)
+ len = strlen(p);
+
+ end = p + len;
+
+ /* Break at all separators */
+ while ((s = (const char*)memchr(p, PERLLIB_SEP, end - p))) {
+ if (s == p) {
+ /* skip any consecutive separators */
+
+ /* Uncomment the next line for PATH semantics */
+ /* But you'll need to write tests */
+ /* av_push(GvAVn(PL_incgv), newSVpvs(".")); */
+ } else {
+ incpush(p, (STRLEN)(s - p), flags);
+ }
+ p = s + 1;
+ }
+ if (p != end)
+ incpush(p, (STRLEN)(end - p), flags);
- Newz(53, thr, 1, struct perl_thread);
- PL_curcop = &PL_compiling;
- thr->interp = PERL_GET_INTERP;
- thr->cvcache = newHV();
- thr->threadsv = newAV();
- /* thr->threadsvp is set when find_threadsv is called */
- thr->specific = newAV();
- thr->flags = THRf_R_JOINABLE;
- MUTEX_INIT(&thr->mutex);
- /* Handcraft thrsv similarly to mess_sv */
- New(53, PL_thrsv, 1, SV);
- Newz(53, xpv, 1, XPV);
- SvFLAGS(PL_thrsv) = SVt_PV;
- SvANY(PL_thrsv) = (void*)xpv;
- SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
- SvPV_set(PL_thrsvr, (char*)thr);
- SvCUR_set(PL_thrsv, sizeof(thr));
- SvLEN_set(PL_thrsv, sizeof(thr));
- *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
- thr->oursv = PL_thrsv;
- PL_chopset = " \n-";
- PL_dumpindent = 4;
-
- MUTEX_LOCK(&PL_threads_mutex);
- PL_nthreads++;
- thr->tid = 0;
- thr->next = thr;
- thr->prev = thr;
- thr->thr_done = 0;
- MUTEX_UNLOCK(&PL_threads_mutex);
-
-#ifdef HAVE_THREAD_INTERN
- Perl_init_thread_intern(thr);
-#endif
-
-#ifdef SET_THREAD_SELF
- SET_THREAD_SELF(thr);
-#else
- thr->self = pthread_self();
-#endif /* SET_THREAD_SELF */
- PERL_SET_THX(thr);
-
- /*
- * These must come after the thread self setting
- * because sv_setpvn does SvTAINT and the taint
- * fields thread selfness being set.
- */
- PL_toptarget = NEWSV(0,0);
- sv_upgrade(PL_toptarget, SVt_PVFM);
- sv_setpvn(PL_toptarget, "", 0);
- PL_bodytarget = NEWSV(0,0);
- sv_upgrade(PL_bodytarget, SVt_PVFM);
- sv_setpvn(PL_bodytarget, "", 0);
- PL_formtarget = PL_bodytarget;
- thr->errsv = newSVpvn("", 0);
- (void) find_threadsv("@"); /* Ensure $@ is initialised early */
-
- PL_maxscream = -1;
- PL_peepp = MEMBER_TO_FPTR(Perl_peep);
- PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp);
- PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags);
- PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start);
- PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string);
- PL_regfree = MEMBER_TO_FPTR(Perl_pregfree);
- PL_regindent = 0;
- PL_reginterp_cnt = 0;
-
- return thr;
}
-#endif /* USE_5005THREADS */
void
Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
{
dVAR;
SV *atsv;
- const line_t oldline = CopLINE(PL_curcop);
+ volatile const line_t oldline = PL_curcop ? CopLINE(PL_curcop) : 0;
CV *cv;
STRLEN len;
int ret;
dJMPENV;
+ PERL_ARGS_ASSERT_CALL_LIST;
+
while (av_len(paramList) >= 0) {
- cv = (CV*)av_shift(paramList);
+ cv = MUTABLE_CV(av_shift(paramList));
if (PL_savebegin) {
if (paramList == PL_beginav) {
/* save PL_beginav for compiler */
- if (! PL_beginav_save)
- PL_beginav_save = newAV();
- av_push(PL_beginav_save, (SV*)cv);
+ Perl_av_create_and_push(aTHX_ &PL_beginav_save, MUTABLE_SV(cv));
}
else if (paramList == PL_checkav) {
/* save PL_checkav for compiler */
- if (! PL_checkav_save)
- PL_checkav_save = newAV();
- av_push(PL_checkav_save, (SV*)cv);
+ Perl_av_create_and_push(aTHX_ &PL_checkav_save, MUTABLE_SV(cv));
+ }
+ else if (paramList == PL_unitcheckav) {
+ /* save PL_unitcheckav for compiler */
+ Perl_av_create_and_push(aTHX_ &PL_unitcheckav_save, MUTABLE_SV(cv));
}
} else {
- SAVEFREESV(cv);
+ if (!PL_madskills)
+ SAVEFREESV(cv);
}
JMPENV_PUSH(ret);
switch (ret) {
case 0:
- call_list_body(cv);
+#ifdef PERL_MAD
+ if (PL_madskills)
+ PL_madskills |= 16384;
+#endif
+ CALL_LIST_BODY(cv);
+#ifdef PERL_MAD
+ if (PL_madskills)
+ PL_madskills &= ~16384;
+#endif
atsv = ERRSV;
- (void)SvPV(atsv, len);
+ (void)SvPV_const(atsv, len);
if (len) {
PL_curcop = &PL_compiling;
CopLINE_set(PL_curcop, oldline);
if (paramList == PL_beginav)
- sv_catpv(atsv, "BEGIN failed--compilation aborted");
+ sv_catpvs(atsv, "BEGIN failed--compilation aborted");
else
Perl_sv_catpvf(aTHX_ atsv,
"%s failed--call queue aborted",
paramList == PL_checkav ? "CHECK"
: paramList == PL_initav ? "INIT"
+ : paramList == PL_unitcheckav ? "UNITCHECK"
: "END");
while (PL_scopestack_ix > oldscope)
LEAVE;
JMPENV_POP;
- Perl_croak(aTHX_ "%"SVf"", atsv);
+ Perl_croak(aTHX_ "%"SVf"", SVfARG(atsv));
}
break;
case 1:
PL_curcop = &PL_compiling;
CopLINE_set(PL_curcop, oldline);
JMPENV_POP;
- if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) {
- if (paramList == PL_beginav)
- Perl_croak(aTHX_ "BEGIN failed--compilation aborted");
- else
- Perl_croak(aTHX_ "%s failed--call queue aborted",
- paramList == PL_checkav ? "CHECK"
- : paramList == PL_initav ? "INIT"
- : "END");
- }
my_exit_jump();
/* NOTREACHED */
case 3:
}
}
-STATIC void *
-S_call_list_body(pTHX_ CV *cv)
-{
- PUSHMARK(PL_stack_sp);
- call_sv((SV*)cv, G_EVAL|G_DISCARD);
- return NULL;
-}
-
void
Perl_my_exit(pTHX_ U32 status)
{
- DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
- thr, (unsigned long) status));
+ dVAR;
switch (status) {
case 0:
STATUS_ALL_SUCCESS;
STATUS_ALL_FAILURE;
break;
default:
- STATUS_NATIVE_SET(status);
+ STATUS_EXIT_SET(status);
break;
}
my_exit_jump();
void
Perl_my_failure_exit(pTHX)
{
+ dVAR;
#ifdef VMS
- if (vaxc$errno & 1) {
- if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
- STATUS_NATIVE_SET(44);
+ /* We have been called to fall on our sword. The desired exit code
+ * should be already set in STATUS_UNIX, but could be shifted over
+ * by 8 bits. STATUS_UNIX_EXIT_SET will handle the cases where a
+ * that code is set.
+ *
+ * If an error code has not been set, then force the issue.
+ */
+ if (MY_POSIX_EXIT) {
+
+ /* According to the die_exit.t tests, if errno is non-zero */
+ /* It should be used for the error status. */
+
+ if (errno == EVMSERR) {
+ STATUS_NATIVE = vaxc$errno;
+ } else {
+
+ /* According to die_exit.t tests, if the child_exit code is */
+ /* also zero, then we need to exit with a code of 255 */
+ if ((errno != 0) && (errno < 256))
+ STATUS_UNIX_EXIT_SET(errno);
+ else if (STATUS_UNIX < 255) {
+ STATUS_UNIX_EXIT_SET(255);
+ }
+
+ }
+
+ /* The exit code could have been set by $? or vmsish which
+ * means that it may not have fatal set. So convert
+ * success/warning codes to fatal with out changing
+ * the POSIX status code. The severity makes VMS native
+ * status handling work, while UNIX mode programs use the
+ * the POSIX exit codes.
+ */
+ if ((STATUS_NATIVE & (STS$K_SEVERE|STS$K_ERROR)) == 0) {
+ STATUS_NATIVE &= STS$M_COND_ID;
+ STATUS_NATIVE |= STS$K_ERROR | STS$M_INHIB_MSG;
+ }
}
else {
- if (!vaxc$errno) /* unlikely */
- STATUS_NATIVE_SET(44);
- else
- STATUS_NATIVE_SET(vaxc$errno);
+ /* Traditionally Perl on VMS always expects a Fatal Error. */
+ if (vaxc$errno & 1) {
+
+ /* So force success status to failure */
+ if (STATUS_NATIVE & 1)
+ STATUS_ALL_FAILURE;
+ }
+ else {
+ if (!vaxc$errno) {
+ STATUS_UNIX = EINTR; /* In case something cares */
+ STATUS_ALL_FAILURE;
+ }
+ else {
+ int severity;
+ STATUS_NATIVE = vaxc$errno; /* Should already be this */
+
+ /* Encode the severity code */
+ severity = STATUS_NATIVE & STS$M_SEVERITY;
+ STATUS_UNIX = (severity ? severity : 1) << 8;
+
+ /* Perl expects this to be a fatal error */
+ if (severity != STS$K_SEVERE)
+ STATUS_ALL_FAILURE;
+ }
+ }
}
+
#else
int exitstatus;
if (errno & 255)
S_my_exit_jump(pTHX)
{
dVAR;
- register PERL_CONTEXT *cx;
- I32 gimme;
- SV **newsp;
if (PL_e_script) {
SvREFCNT_dec(PL_e_script);
- PL_e_script = Nullsv;
+ PL_e_script = NULL;
}
POPSTACK_TO(PL_mainstack);
- if (cxstack_ix >= 0) {
- if (cxstack_ix > 0)
- dounwind(0);
- POPBLOCK(cx,PL_curpm);
- LEAVE;
- }
+ dounwind(-1);
+ LEAVE_SCOPE(0);
JMPENV_JUMP(2);
}
static I32
read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen)
{
- char *p, *nl;
- (void)idx;
- (void)maxlen;
+ dVAR;
+ const char * const p = SvPVX_const(PL_e_script);
+ const char *nl = strchr(p, '\n');
+
+ PERL_UNUSED_ARG(idx);
+ PERL_UNUSED_ARG(maxlen);
- p = SvPVX(PL_e_script);
- nl = strchr(p, '\n');
nl = (nl) ? nl+1 : SvEND(PL_e_script);
if (nl-p == 0) {
filter_del(read_e_script);
projects / p5sagit/p5-mst-13.2.git / blobdiff