# include <sys/wait.h>
#endif
+#ifdef HAS_SELECT
+# ifdef I_SYS_SELECT
+# include <sys/select.h>
+# endif
+#endif
+
#define FLUSH
#ifdef LEAKTEST
If FBMcf_TAIL, the table is created as if the string has a trailing \n. */
/*
+=head1 Miscellaneous Functions
+
=for apidoc fbm_compile
Analyses the string in order to make fast searches on it using fbm_instr()
sv_catpvn(sv, "\n", 1); /* Taken into account in fbm_instr() */
s = (U8*)SvPV_force(sv, len);
(void)SvUPGRADE(sv, SVt_PVBM);
- if (len == 0) /* TAIL might be on on a zero-length string. */
+ if (len == 0) /* TAIL might be on a zero-length string. */
return;
if (len > 2) {
U8 mlen;
/* copy a string to a safe spot */
/*
+=head1 Memory Management
+
=for apidoc savepv
Copy a string to a safe spot. This does not use an SV.
}
#endif /* PERL_IMPLICIT_CONTEXT */
+/*
+=head1 Miscellaneous Functions
+=for apidoc form
+
+Takes a sprintf-style format pattern and conventional
+(non-SV) arguments and returns the formatted string.
+
+ (char *) Perl_form(pTHX_ const char* pat, ...)
+
+can be used any place a string (char *) is required:
+
+ char * s = Perl_form("%d.%d",major,minor);
+
+Uses a single private buffer so if you want to format several strings you
+must explicitly copy the earlier strings away (and free the copies when you
+are done).
+
+=cut
+*/
+
char *
Perl_form(pTHX_ const char* pat, ...)
{
PL_restartop = die_where(message, msglen);
JMPENV_JUMP(3);
}
+ else if (!message)
+ message = SvPVx(ERRSV, msglen);
+
{
#ifdef USE_SFIO
/* SFIO can really mess with your errno */
#endif
PerlIO *serr = Perl_error_log;
- PerlIO_write(serr, message, msglen);
+ PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen);
(void)PerlIO_flush(serr);
#ifdef USE_SFIO
errno = e;
#endif /* PERL_IMPLICIT_CONTEXT */
/*
+=head1 Warning and Dieing
+
=for apidoc croak
This is the XSUB-writer's interface to Perl's C<die> function.
{
PerlIO *serr = Perl_error_log;
- PerlIO_write(serr, message, msglen);
+ PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen);
#ifdef LEAKTEST
DEBUG_L(*message == '!'
? (xstat(message[1]=='!'
}
{
PerlIO *serr = Perl_error_log;
- PerlIO_write(serr, message, msglen);
+ PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen);
(void)PerlIO_flush(serr);
}
my_failure_exit();
}
{
PerlIO *serr = Perl_error_log;
- PerlIO_write(serr, message, msglen);
+ PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen);
#ifdef LEAKTEST
DEBUG_L(*message == '!'
? (xstat(message[1]=='!'
}
}
+/* since we've already done strlen() for both nam and val
+ * we can use that info to make things faster than
+ * sprintf(s, "%s=%s", nam, val)
+ */
+#define my_setenv_format(s, nam, nlen, val, vlen) \
+ Copy(nam, s, nlen, char); \
+ *(s+nlen) = '='; \
+ Copy(val, s+(nlen+1), vlen, char); \
+ *(s+(nlen+1+vlen)) = '\0'
+
#ifdef USE_ENVIRON_ARRAY
/* VMS' and EPOC's my_setenv() is in vms.c and epoc.c */
#if !defined(WIN32) && !defined(NETWARE)
#ifndef PERL_USE_SAFE_PUTENV
/* most putenv()s leak, so we manipulate environ directly */
register I32 i=setenv_getix(nam); /* where does it go? */
+ int nlen, vlen;
if (environ == PL_origenviron) { /* need we copy environment? */
I32 j;
for (max = i; environ[max]; max++) ;
tmpenv = (char**)safesysmalloc((max+2) * sizeof(char*));
for (j=0; j<max; j++) { /* copy environment */
- tmpenv[j] = (char*)safesysmalloc((strlen(environ[j])+1)*sizeof(char));
- strcpy(tmpenv[j], environ[j]);
+ int len = strlen(environ[j]);
+ tmpenv[j] = (char*)safesysmalloc((len+1)*sizeof(char));
+ Copy(environ[j], tmpenv[j], len+1, char);
}
tmpenv[max] = Nullch;
environ = tmpenv; /* tell exec where it is now */
}
else
safesysfree(environ[i]);
- environ[i] = (char*)safesysmalloc((strlen(nam)+strlen(val)+2) * sizeof(char));
+ nlen = strlen(nam);
+ vlen = strlen(val);
- (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */
+ environ[i] = (char*)safesysmalloc((nlen+vlen+2) * sizeof(char));
+ /* all that work just for this */
+ my_setenv_format(environ[i], nam, nlen, val, vlen);
#else /* PERL_USE_SAFE_PUTENV */
# if defined(__CYGWIN__)
setenv(nam, val, 1);
# else
char *new_env;
-
- new_env = (char*)safesysmalloc((strlen(nam) + strlen(val) + 2) * sizeof(char));
- (void)sprintf(new_env,"%s=%s",nam,val);/* all that work just for this */
+ int nlen = strlen(nam), vlen;
+ if (!val) {
+ val = "";
+ }
+ vlen = strlen(val);
+ new_env = (char*)safesysmalloc((nlen + vlen + 2) * sizeof(char));
+ /* all that work just for this */
+ my_setenv_format(new_env, nam, nlen, val, vlen);
(void)putenv(new_env);
# endif /* __CYGWIN__ */
#endif /* PERL_USE_SAFE_PUTENV */
Perl_my_setenv(pTHX_ char *nam,char *val)
{
register char *envstr;
- STRLEN len = strlen(nam) + 3;
+ int nlen = strlen(nam), vlen;
+
if (!val) {
val = "";
}
- len += strlen(val);
- New(904, envstr, len, char);
- (void)sprintf(envstr,"%s=%s",nam,val);
+ vlen = strlen(val);
+ New(904, envstr, nlen+vlen+2, char);
+ my_setenv_format(envstr, nam, nlen, val, vlen);
(void)PerlEnv_putenv(envstr);
Safefree(envstr);
}
did_pipes = 0;
if (n) { /* Error */
int pid2, status;
+ PerlLIO_close(p[This]);
if (n != sizeof(int))
Perl_croak(aTHX_ "panic: kid popen errno read");
do {
}
#endif /* defined OS2 */
/*SUPPRESS 560*/
- if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV)))
+ if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) {
+ SvREADONLY_off(GvSV(tmpgv));
sv_setiv(GvSV(tmpgv), PerlProc_getpid());
+ SvREADONLY_on(GvSV(tmpgv));
+ }
PL_forkprocess = 0;
hv_clear(PL_pidstatus); /* we have no children */
return Nullfp;
did_pipes = 0;
if (n) { /* Error */
int pid2, status;
+ PerlLIO_close(p[This]);
if (n != sizeof(int))
Perl_croak(aTHX_ "panic: kid popen errno read");
do {
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
#ifdef SA_RESTART
-#if !defined(USE_PERLIO) || defined(PERL_OLD_SIGNALS)
+#if defined(PERL_OLD_SIGNALS)
act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
#endif
#endif
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
#ifdef SA_RESTART
-#if !defined(USE_PERLIO) || defined(PERL_OLD_SIGNALS)
+#if defined(PERL_OLD_SIGNALS)
act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
#endif
#endif
return PerlProc_signal(signo, handler);
}
-static int sig_trapped;
+static int sig_trapped; /* XXX signals are process-wide anyway, so we
+ ignore the implications of this for threading */
static
Signal_t
I32
Perl_wait4pid(pTHX_ Pid_t pid, int *statusp, int flags)
{
+ I32 result;
if (!pid)
return -1;
#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
if (!HAS_WAITPID_RUNTIME)
goto hard_way;
# endif
- return PerlProc_waitpid(pid,statusp,flags);
+ result = PerlProc_waitpid(pid,statusp,flags);
+ goto finish;
#endif
#if !defined(HAS_WAITPID) && defined(HAS_WAIT4)
- return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
+ result = wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
+ goto finish;
#endif
#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
hard_way:
{
- I32 result;
if (flags)
Perl_croak(aTHX_ "Can't do waitpid with flags");
else {
if (result < 0)
*statusp = -1;
}
- return result;
}
#endif
+ finish:
+ if (result < 0 && errno == EINTR) {
+ PERL_ASYNC_CHECK();
+ }
+ return result;
}
#endif /* !DOSISH || OS2 || WIN32 || NETWARE */
char *xfailed = Nullch;
char tmpbuf[MAXPATHLEN];
register char *s;
- I32 len;
+ I32 len = 0;
int retval;
#if defined(DOSISH) && !defined(OS2) && !defined(atarist)
# define SEARCH_EXTS ".bat", ".cmd", NULL
PL_tainted = t->Ttainted;
PL_curpm = t->Tcurpm; /* XXX No PMOP ref count */
- PL_nrs = newSVsv(t->Tnrs);
- PL_rs = t->Tnrs ? SvREFCNT_inc(PL_nrs) : Nullsv;
+ PL_rs = newSVsv(t->Trs);
PL_last_in_gv = Nullgv;
PL_ofs_sv = t->Tofs_sv ? SvREFCNT_inc(PL_ofs_sv) : Nullsv;
PL_defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv);
(dp->d_name[1] == '.' && dp->d_name[2] == '\0')))
/*
+=head1 Miscellaneous Functions
+
=for apidoc getcwd_sv
Fill the sv with current working directory
{
#ifndef PERL_MICRO
+#ifndef INCOMPLETE_TAINTS
+ SvTAINTED_on(sv);
+#endif
+
#ifdef HAS_GETCWD
{
char buf[MAXPATHLEN];
#endif
}
+/*
+=head1 SV Manipulation Functions
+
+=for apidoc new_vstring
+
+Returns a pointer to the next character after the parsed
+vstring, as well as updating the passed in sv.
+
+Function must be called like
+
+ sv = NEWSV(92,5);
+ s = new_vstring(s,sv);
+
+The sv must already be large enough to store the vstring
+passed in.
+
+=cut
+*/
+
+char *
+Perl_new_vstring(pTHX_ char *s, SV *sv)
+{
+ char *pos = s;
+ if (*pos == 'v') pos++; /* get past 'v' */
+ while (isDIGIT(*pos) || *pos == '_')
+ pos++;
+ if (!isALPHA(*pos)) {
+ UV rev;
+ U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 *tmpend;
+
+ if (*s == 'v') s++; /* get past 'v' */
+
+ sv_setpvn(sv, "", 0);
+
+ for (;;) {
+ rev = 0;
+ {
+ /* this is atoi() that tolerates underscores */
+ char *end = pos;
+ UV mult = 1;
+ if ( *(s-1) == '_') {
+ mult = 10;
+ }
+ while (--end >= s) {
+ UV orev;
+ orev = rev;
+ rev += (*end - '0') * mult;
+ mult *= 10;
+ if (orev > rev && ckWARN_d(WARN_OVERFLOW))
+ Perl_warner(aTHX_ WARN_OVERFLOW,
+ "Integer overflow in decimal number");
+ }
+ }
+ /* Append native character for the rev point */
+ tmpend = uvchr_to_utf8(tmpbuf, rev);
+ sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf);
+ if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev)))
+ SvUTF8_on(sv);
+ if ( (*pos == '.' || *pos == '_') && isDIGIT(pos[1]))
+ s = ++pos;
+ else {
+ s = pos;
+ break;
+ }
+ while (isDIGIT(*pos) )
+ pos++;
+ }
+ SvPOK_on(sv);
+ SvREADONLY_on(sv);
+ }
+ return s;
+}
+
+#if !defined(HAS_SOCKETPAIR) && defined(HAS_SOCKET)
+static int
+S_socketpair_udp (int fd[2]) {
+ dTHX;
+ /* Fake a datagram socketpair using UDP to localhost. */
+ int sockets[2] = {-1, -1};
+ struct sockaddr_in addresses[2];
+ int i;
+ Sock_size_t size = sizeof (struct sockaddr_in);
+ unsigned short port;
+ int got;
+
+ memset (&addresses, 0, sizeof (addresses));
+ i = 1;
+ do {
+ sockets[i] = PerlSock_socket (AF_INET, SOCK_DGRAM, PF_INET);
+ if (sockets[i] == -1)
+ goto tidy_up_and_fail;
+
+ addresses[i].sin_family = AF_INET;
+ addresses[i].sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+ addresses[i].sin_port = 0; /* kernel choses port. */
+ if (PerlSock_bind (sockets[i], (struct sockaddr *) &addresses[i],
+ sizeof (struct sockaddr_in))
+ == -1)
+ goto tidy_up_and_fail;
+ } while (i--);
+
+ /* Now have 2 UDP sockets. Find out which port each is connected to, and
+ for each connect the other socket to it. */
+ i = 1;
+ do {
+ if (PerlSock_getsockname (sockets[i], (struct sockaddr *) &addresses[i], &size)
+ == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof (struct sockaddr_in))
+ goto abort_tidy_up_and_fail;
+ /* !1 is 0, !0 is 1 */
+ if (PerlSock_connect(sockets[!i], (struct sockaddr *) &addresses[i],
+ sizeof (struct sockaddr_in)) == -1)
+ goto tidy_up_and_fail;
+ } while (i--);
+
+ /* Now we have 2 sockets connected to each other. I don't trust some other
+ process not to have already sent a packet to us (by random) so send
+ a packet from each to the other. */
+ i = 1;
+ do {
+ /* I'm going to send my own port number. As a short.
+ (Who knows if someone somewhere has sin_port as a bitfield and needs
+ this routine. (I'm assuming crays have socketpair)) */
+ port = addresses[i].sin_port;
+ got = PerlLIO_write (sockets[i], &port, sizeof(port));
+ if (got != sizeof(port)) {
+ if (got == -1)
+ goto tidy_up_and_fail;
+ goto abort_tidy_up_and_fail;
+ }
+ } while (i--);
+
+ /* Packets sent. I don't trust them to have arrived though.
+ (As I understand it Solaris TCP stack is multithreaded. Non-blocking
+ connect to localhost will use a second kernel thread. In 2.6 the
+ first thread running the connect() returns before the second completes,
+ so EINPROGRESS> In 2.7 the improved stack is faster and connect()
+ returns 0. Poor programs have tripped up. One poor program's authors'
+ had a 50-1 reverse stock split. Not sure how connected these were.)
+ So I don't trust someone not to have an unpredictable UDP stack.
+ */
+
+ {
+ struct timeval waitfor = {0, 100000}; /* You have 0.1 seconds */
+ int max = sockets[1] > sockets[0] ? sockets[1] : sockets[0];
+ fd_set rset;
+
+ FD_ZERO (&rset);
+ FD_SET (sockets[0], &rset);
+ FD_SET (sockets[1], &rset);
+
+ got = PerlSock_select (max + 1, &rset, NULL, NULL, &waitfor);
+ if (got != 2 || !FD_ISSET (sockets[0], &rset)
+ || !FD_ISSET (sockets[1], &rset)) {
+ /* I hope this is portable and appropriate. */
+ if (got == -1)
+ goto tidy_up_and_fail;
+ goto abort_tidy_up_and_fail;
+ }
+ }
+
+ /* And the paranoia department even now doesn't trust it to have arrive
+ (hence MSG_DONTWAIT). Or that what arrives was sent by us. */
+ {
+ struct sockaddr_in readfrom;
+ unsigned short buffer[2];
+
+ i = 1;
+ do {
+#ifdef MSG_DONTWAIT
+ got = PerlSock_recvfrom (sockets[i], (char *) &buffer, sizeof(buffer),
+ MSG_DONTWAIT,
+ (struct sockaddr *) &readfrom, &size);
+#else
+ got = PerlSock_recvfrom (sockets[i], (char *) &buffer, sizeof(buffer),
+ 0,
+ (struct sockaddr *) &readfrom, &size);
+#endif
+
+ if (got == -1)
+ goto tidy_up_and_fail;
+ if (got != sizeof(port)
+ || size != sizeof (struct sockaddr_in)
+ /* Check other socket sent us its port. */
+ || buffer[0] != (unsigned short) addresses[!i].sin_port
+ /* Check kernel says we got the datagram from that socket. */
+ || readfrom.sin_family != addresses[!i].sin_family
+ || readfrom.sin_addr.s_addr != addresses[!i].sin_addr.s_addr
+ || readfrom.sin_port != addresses[!i].sin_port)
+ goto abort_tidy_up_and_fail;
+ } while (i--);
+ }
+ /* My caller (my_socketpair) has validated that this is non-NULL */
+ fd[0] = sockets[0];
+ fd[1] = sockets[1];
+ /* I hereby declare this connection open. May God bless all who cross
+ her. */
+ return 0;
+
+ abort_tidy_up_and_fail:
+ errno = ECONNABORTED;
+ tidy_up_and_fail:
+ {
+ int save_errno = errno;
+ if (sockets[0] != -1)
+ PerlLIO_close (sockets[0]);
+ if (sockets[1] != -1)
+ PerlLIO_close (sockets[1]);
+ errno = save_errno;
+ return -1;
+ }
+}
+
+int
+Perl_my_socketpair (int family, int type, int protocol, int fd[2]) {
+ /* Stevens says that family must be AF_LOCAL, protocol 0.
+ I'm going to enforce that, then ignore it, and use TCP (or UDP). */
+ dTHX;
+ int listener = -1;
+ int connector = -1;
+ int acceptor = -1;
+ struct sockaddr_in listen_addr;
+ struct sockaddr_in connect_addr;
+ Sock_size_t size;
+
+ if (protocol
+#ifdef AF_UNIX
+ || family != AF_UNIX
+#endif
+ ) {
+ errno = EAFNOSUPPORT;
+ return -1;
+ }
+ if (!fd) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (type == SOCK_DGRAM)
+ return S_socketpair_udp (fd);
+
+ listener = PerlSock_socket (AF_INET, type, 0);
+ if (listener == -1)
+ return -1;
+ memset (&listen_addr, 0, sizeof (listen_addr));
+ listen_addr.sin_family = AF_INET;
+ listen_addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+ listen_addr.sin_port = 0; /* kernel choses port. */
+ if (PerlSock_bind (listener, (struct sockaddr *) &listen_addr, sizeof (listen_addr))
+ == -1)
+ goto tidy_up_and_fail;
+ if (PerlSock_listen(listener, 1) == -1)
+ goto tidy_up_and_fail;
+
+ connector = PerlSock_socket (AF_INET, type, 0);
+ if (connector == -1)
+ goto tidy_up_and_fail;
+ /* We want to find out the port number to connect to. */
+ size = sizeof (connect_addr);
+ if (PerlSock_getsockname (listener, (struct sockaddr *) &connect_addr, &size) == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof (connect_addr))
+ goto abort_tidy_up_and_fail;
+ if (PerlSock_connect(connector, (struct sockaddr *) &connect_addr,
+ sizeof (connect_addr)) == -1)
+ goto tidy_up_and_fail;
+
+ size = sizeof (listen_addr);
+ acceptor = PerlSock_accept (listener, (struct sockaddr *) &listen_addr, &size);
+ if (acceptor == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof (listen_addr))
+ goto abort_tidy_up_and_fail;
+ PerlLIO_close (listener);
+ /* Now check we are talking to ourself by matching port and host on the
+ two sockets. */
+ if (PerlSock_getsockname (connector, (struct sockaddr *) &connect_addr, &size) == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof (connect_addr)
+ || listen_addr.sin_family != connect_addr.sin_family
+ || listen_addr.sin_addr.s_addr != connect_addr.sin_addr.s_addr
+ || listen_addr.sin_port != connect_addr.sin_port) {
+ goto abort_tidy_up_and_fail;
+ }
+ fd[0] = connector;
+ fd[1] = acceptor;
+ return 0;
+
+ abort_tidy_up_and_fail:
+ errno = ECONNABORTED; /* I hope this is portable and appropriate. */
+ tidy_up_and_fail:
+ {
+ int save_errno = errno;
+ if (listener != -1)
+ PerlLIO_close (listener);
+ if (connector != -1)
+ PerlLIO_close (connector);
+ if (acceptor != -1)
+ PerlLIO_close (acceptor);
+ errno = save_errno;
+ return -1;
+ }
+}
+#endif /* !defined(HAS_SOCKETPAIR) && defined(HAS_SOCKET) */
+#ifdef HAS_SOCKETPAIR
+/* In any case have a stub so that there's code corresponding
+ * to the my_socketpair in global.sym. */
+int
+Perl_my_socketpair (int family, int type, int protocol, int fd[2]) {
+ return socketpair(family, type, protocol, fd);
+}
+#endif
+
projects / p5sagit/p5-mst-13.2.git / blobdiff