/* pp_sys.c
*
- * Copyright (c) 1991-2001, Larry Wall
+ * Copyright (c) 1991-2002, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
# endif
#endif
-/* Put this after #includes because fork and vfork prototypes may conflict. */
-#ifndef HAS_VFORK
-# define vfork fork
-#endif
-
#ifdef HAS_CHSIZE
# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
# undef my_chsize
return result;
}
-#if 0 /* XXX never used! */
-PP(pp_indread)
-{
- STRLEN n_a;
- PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
- return do_readline();
-}
-#endif
-
PP(pp_rcatline)
{
PL_last_in_gv = cGVOP_gv;
SV *tmpsv;
STRLEN len;
bool multiarg = 0;
+#ifdef VMS
+ VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
+#endif
if (SP - MARK != 1) {
dTARGET;
do_join(TARG, &PL_sv_no, MARK, SP);
sv_setsv(error,*PL_stack_sp--);
}
}
- DIE(aTHX_ Nullch);
+ DIE(aTHX_ Nullformat);
}
else {
if (SvPOK(error) && SvCUR(error))
dTARGET;
GV *gv;
SV *sv;
+ IO *io;
char *tmps;
STRLEN len;
MAGIC *mg;
gv = (GV *)*++MARK;
if (!isGV(gv))
DIE(aTHX_ PL_no_usym, "filehandle");
- if (GvIOp(gv))
+ if ((io = GvIOp(gv)))
IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
- if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
+ if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
/* Method's args are same as ours ... */
/* ... except handle is replaced by the object */
- *MARK-- = SvTIED_obj((SV*)gv, mg);
+ *MARK-- = SvTIED_obj((SV*)io, mg);
PUSHMARK(MARK);
PUTBACK;
ENTER;
{
dSP;
GV *gv;
+ IO *io;
MAGIC *mg;
if (MAXARG == 0)
else
gv = (GV*)POPs;
- if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
+ if (gv && (io = GvIO(gv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
+ {
PUSHMARK(SP);
- XPUSHs(SvTIED_obj((SV*)gv, mg));
+ XPUSHs(SvTIED_obj((SV*)io, mg));
PUTBACK;
ENTER;
call_method("CLOSE", G_SCALAR);
RETPUSHUNDEF;
gv = (GV*)POPs;
- if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
+ if (gv && (io = GvIO(gv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
+ {
PUSHMARK(SP);
- XPUSHs(SvTIED_obj((SV*)gv, mg));
+ XPUSHs(SvTIED_obj((SV*)io, mg));
PUTBACK;
ENTER;
call_method("FILENO", G_SCALAR);
gv = (GV*)POPs;
- if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
+ if (gv && (io = GvIO(gv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
+ {
PUSHMARK(SP);
- XPUSHs(SvTIED_obj((SV*)gv, mg));
+ XPUSHs(SvTIED_obj((SV*)io, mg));
if (discp)
XPUSHs(discp);
PUTBACK;
switch(SvTYPE(varsv)) {
case SVt_PVHV:
methname = "TIEHASH";
+ HvEITER((HV *)varsv) = Null(HE *);
break;
case SVt_PVAV:
methname = "TIEARRAY";
#endif
methname = "TIEHANDLE";
how = PERL_MAGIC_tiedscalar;
+ /* For tied filehandles, we apply tiedscalar magic to the IO
+ slot of the GP rather than the GV itself. AMS 20010812 */
+ if (!GvIOp(varsv))
+ GvIOp(varsv) = newIO();
+ varsv = (SV *)GvIOp(varsv);
break;
default:
methname = "TIESCALAR";
PP(pp_untie)
{
dSP;
+ MAGIC *mg;
SV *sv = POPs;
char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
- MAGIC * mg ;
- if ((mg = SvTIED_mg(sv, how))) {
+ if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
+ RETPUSHYES;
+
+ if ((mg = SvTIED_mg(sv, how))) {
SV *obj = SvRV(mg->mg_obj);
GV *gv;
CV *cv = NULL;
- if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
- isGV(gv) && (cv = GvCV(gv))) {
- PUSHMARK(SP);
- XPUSHs(SvTIED_obj((SV*)gv, mg));
- XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
- PUTBACK;
- ENTER;
- call_sv((SV *)cv, G_VOID);
- LEAVE;
- SPAGAIN;
- }
- else if (ckWARN(WARN_UNTIE)) {
- if (mg && SvREFCNT(obj) > 1)
- Perl_warner(aTHX_ WARN_UNTIE,
- "untie attempted while %"UVuf" inner references still exist",
- (UV)SvREFCNT(obj) - 1 ) ;
+ if (obj) {
+ if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
+ isGV(gv) && (cv = GvCV(gv))) {
+ PUSHMARK(SP);
+ XPUSHs(SvTIED_obj((SV*)gv, mg));
+ XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
+ PUTBACK;
+ ENTER;
+ call_sv((SV *)cv, G_VOID);
+ LEAVE;
+ SPAGAIN;
+ }
+ else if (ckWARN(WARN_UNTIE)) {
+ if (mg && SvREFCNT(obj) > 1)
+ Perl_warner(aTHX_ WARN_UNTIE,
+ "untie attempted while %"UVuf" inner references still exist",
+ (UV)SvREFCNT(obj) - 1 ) ;
+ }
}
+ sv_unmagic(sv, how) ;
}
- sv_unmagic(sv, how);
RETPUSHYES;
}
PP(pp_tied)
{
dSP;
+ MAGIC *mg;
SV *sv = POPs;
char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
- MAGIC *mg;
+
+ if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
+ RETPUSHUNDEF;
if ((mg = SvTIED_mg(sv, how))) {
SV *osv = SvTIED_obj(sv, mg);
{
dSP; dTARGET;
GV *gv;
+ IO *io = NULL;
MAGIC *mg;
if (MAXARG == 0)
else
gv = (GV*)POPs;
- if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
+ if (gv && (io = GvIO(gv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
+ {
I32 gimme = GIMME_V;
PUSHMARK(SP);
- XPUSHs(SvTIED_obj((SV*)gv, mg));
+ XPUSHs(SvTIED_obj((SV*)io, mg));
PUTBACK;
ENTER;
call_method("GETC", gimme);
SvSetMagicSV_nosteal(TARG, TOPs);
RETURN;
}
- if (!gv || do_eof(gv)) /* make sure we have fp with something */
+ if (!gv || do_eof(gv)) { /* make sure we have fp with something */
+ if (ckWARN2(WARN_UNOPENED,WARN_CLOSED) && IoTYPE(io) != IoTYPE_WRONLY)
+ report_evil_fh(gv, io, PL_op->op_type);
RETPUSHUNDEF;
+ }
TAINT;
sv_setpv(TARG, " ");
*SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
else
gv = PL_defoutgv;
- if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
+ if (gv && (io = GvIO(gv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
+ {
if (MARK == ORIGMARK) {
MEXTEND(SP, 1);
++MARK;
++SP;
}
PUSHMARK(MARK - 1);
- *MARK = SvTIED_obj((SV*)gv, mg);
+ *MARK = SvTIED_obj((SV*)io, mg);
PUTBACK;
ENTER;
call_method("PRINTF", G_SCALAR);
int fp_utf8;
Size_t got = 0;
Size_t wanted;
+ bool charstart = FALSE;
+ STRLEN charskip = 0;
+ STRLEN skip = 0;
gv = (GV*)*++MARK;
- if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
- (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
+ if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
+ && gv && (io = GvIO(gv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
{
SV *sv;
PUSHMARK(MARK-1);
- *MARK = SvTIED_obj((SV*)gv, mg);
+ *MARK = SvTIED_obj((SV*)io, mg);
ENTER;
call_method("READ", G_SCALAR);
LEAVE;
DIE(aTHX_ "Negative length");
wanted = length;
+ charstart = TRUE;
+ charskip = 0;
+ skip = 0;
+
#ifdef HAS_SOCKET
if (PL_op->op_type == OP_RECV) {
char namebuf[MAXPATHLEN];
/* Look at utf8 we got back and count the characters */
char *bend = buffer + count;
while (buffer < bend) {
- STRLEN skip = UTF8SKIP(buffer);
- if (buffer+skip > bend) {
+ if (charstart) {
+ skip = UTF8SKIP(buffer);
+ charskip = 0;
+ }
+ if (buffer - charskip + skip > bend) {
/* partial character - try for rest of it */
length = skip - (bend-buffer);
offset = bend - SvPVX(bufsv);
+ charstart = FALSE;
+ charskip += count;
goto more_bytes;
}
else {
got++;
buffer += skip;
+ charstart = TRUE;
+ charskip = 0;
}
}
/* If we have not 'got' the number of _characters_ we 'wanted' get some more
provided amount read (count) was what was requested (length)
*/
if (got < wanted && count == length) {
- length = (wanted-got);
+ length = wanted - got;
offset = bend - SvPVX(bufsv);
goto more_bytes;
}
gv = (GV*)*++MARK;
if (PL_op->op_type == OP_SYSWRITE
- && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
+ && gv && (io = GvIO(gv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
{
SV *sv;
PUSHMARK(MARK-1);
- *MARK = SvTIED_obj((SV*)gv, mg);
+ *MARK = SvTIED_obj((SV*)io, mg);
ENTER;
call_method("WRITE", G_SCALAR);
LEAVE;
if (retval < 0)
goto say_undef;
SP = ORIGMARK;
+ if (DO_UTF8(bufsv))
+ retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
#if Size_t_size > IVSIZE
PUSHn(retval);
#else
{
dSP;
GV *gv;
+ IO *io;
MAGIC *mg;
if (MAXARG == 0) {
if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
IO *io;
- gv = PL_last_in_gv = PL_argvgv;
+ gv = PL_last_in_gv = GvEGV(PL_argvgv);
io = GvIO(gv);
if (io && !IoIFP(io)) {
if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
else
gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
- if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
+ if (gv && (io = GvIO(gv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
+ {
PUSHMARK(SP);
- XPUSHs(SvTIED_obj((SV*)gv, mg));
+ XPUSHs(SvTIED_obj((SV*)io, mg));
PUTBACK;
ENTER;
call_method("EOF", G_SCALAR);
{
dSP; dTARGET;
GV *gv;
+ IO *io;
MAGIC *mg;
if (MAXARG == 0)
else
gv = PL_last_in_gv = (GV*)POPs;
- if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
+ if (gv && (io = GvIO(gv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
+ {
PUSHMARK(SP);
- XPUSHs(SvTIED_obj((SV*)gv, mg));
+ XPUSHs(SvTIED_obj((SV*)io, mg));
PUTBACK;
ENTER;
call_method("TELL", G_SCALAR);
{
dSP;
GV *gv;
+ IO *io;
int whence = POPi;
#if LSEEKSIZE > IVSIZE
Off_t offset = (Off_t)SvNVx(POPs);
gv = PL_last_in_gv = (GV*)POPs;
- if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
+ if (gv && (io = GvIO(gv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
+ {
PUSHMARK(SP);
- XPUSHs(SvTIED_obj((SV*)gv, mg));
+ XPUSHs(SvTIED_obj((SV*)io, mg));
#if LSEEKSIZE > IVSIZE
XPUSHs(sv_2mortal(newSVnv((NV) offset)));
#else
else {
SV *sv = POPs;
char *name;
-
+
if (SvTYPE(sv) == SVt_PVGV) {
tmpgv = (GV*)sv; /* *main::FRED for example */
goto do_ftruncate;
if (SvPOK(argsv)) {
if (s[SvCUR(argsv)] != 17)
DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
- PL_op_name[optype]);
+ OP_NAME(PL_op));
s[SvCUR(argsv)] = 0; /* put our null back */
SvSETMAGIC(argsv); /* Assume it has changed */
}
PP(pp_sockpair)
{
-#ifdef HAS_SOCKETPAIR
+#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM))
dSP;
GV *gv1;
GV *gv2;
struct sockaddr saddr; /* use a struct to avoid alignment problems */
Sock_size_t len = sizeof saddr;
int fd;
+ int fd2;
ggv = (GV*)POPs;
ngv = (GV*)POPs;
goto nuts;
nstio = GvIOn(ngv);
- if (IoIFP(nstio))
- do_close(ngv, FALSE);
-
fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
if (fd < 0)
goto badexit;
+ if (IoIFP(nstio))
+ do_close(ngv, FALSE);
IoIFP(nstio) = PerlIO_fdopen(fd, "r");
- IoOFP(nstio) = PerlIO_fdopen(fd, "w");
+ /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
+ fclose of IoOFP's FILE * - and hence leak memory.
+ Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
+ */
+ IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w");
IoTYPE(nstio) = IoTYPE_SOCKET;
if (!IoIFP(nstio) || !IoOFP(nstio)) {
if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
}
#if defined(HAS_FCNTL) && defined(F_SETFD)
fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
+ fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
#endif
#ifdef EPOC
if (PL_op->op_flags & OPf_REF) {
gv = cGVOP_gv;
if (PL_op->op_type == OP_LSTAT) {
- if (PL_laststype != OP_LSTAT)
- Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
- if (ckWARN(WARN_IO) && gv != PL_defgv)
- Perl_warner(aTHX_ WARN_IO,
+ if (gv != PL_defgv) {
+ if (ckWARN(WARN_IO))
+ Perl_warner(aTHX_ WARN_IO,
"lstat() on filehandle %s", GvENAME(gv));
- /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
+ } else if (PL_laststype != OP_LSTAT)
+ Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
}
do_fstat:
}
else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
gv = (GV*)SvRV(sv);
+ if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
+ Perl_warner(aTHX_ WARN_IO,
+ "lstat() on filehandle %s", GvENAME(gv));
goto do_fstat;
}
sv_setpv(PL_statname, SvPV(sv,n_a));
really_filename:
PL_statgv = Nullgv;
PL_laststatval = -1;
+ PL_laststype = OP_STAT;
sv_setpv(PL_statname, SvPV(sv, n_a));
if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
SV **svp;
STRLEN n_a;
- if (MAXARG < 1)
- tmps = Nullch;
+ if( MAXARG == 1 )
+ tmps = POPpx;
else
- tmps = POPpx;
- if (!tmps || !*tmps) {
- svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
- if (svp)
- tmps = SvPV(*svp, n_a);
- }
- if (!tmps || !*tmps) {
- svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
- if (svp)
- tmps = SvPV(*svp, n_a);
- }
+ tmps = 0;
+
+ if( !tmps || !*tmps ) {
+ if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
+ || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
#ifdef VMS
- if (!tmps || !*tmps) {
- svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
- if (svp)
- tmps = SvPV(*svp, n_a);
- }
+ || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
#endif
+ )
+ {
+ if( MAXARG == 1 )
+ deprecate("chdir('') or chdir(undef) as chdir()");
+ tmps = SvPV(*svp, n_a);
+ }
+ else {
+ PUSHi(0);
+ TAINT_PROPER("chdir");
+ RETURN;
+ }
+ }
+
TAINT_PROPER("chdir");
PUSHi( PerlDir_chdir(tmps) >= 0 );
#ifdef VMS
PP(pp_link)
{
- dSP;
#ifdef HAS_LINK
- dTARGET;
+ dSP; dTARGET;
STRLEN n_a;
char *tmps2 = POPpx;
char *tmps = SvPV(TOPs, n_a);
EXTEND(SP, 1);
PERL_FLUSHALL_FOR_CHILD;
- childpid = fork();
+ childpid = PerlProc_fork();
if (childpid < 0)
RETSETUNDEF;
if (!childpid) {
/*SUPPRESS 560*/
- if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV)))
+ if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
+ SvREADONLY_off(GvSV(tmpgv));
sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
+ SvREADONLY_on(GvSV(tmpgv));
+ }
hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
}
PUSHi(childpid);
Pid_t childpid;
int status;
Sigsave_t ihand,qhand; /* place to save signals during system() */
-
+
+ if (PL_tainting) {
+ SV *cmd = NULL;
+ if (PL_op->op_flags & OPf_STACKED)
+ cmd = *(MARK + 1);
+ else if (SP - MARK != 1)
+ cmd = *SP;
+ if (cmd && *(SvPV_nolen(cmd)) != '/')
+ TAINT_ENV();
+ }
+
if (PerlProc_pipe(pp) >= 0)
did_pipes = 1;
- while ((childpid = vfork()) == -1) {
+ while ((childpid = PerlProc_fork()) == -1) {
if (errno != EAGAIN) {
value = -1;
SP = ORIGMARK;
(void)rsignal_restore(SIGQUIT, &qhand);
#endif
STATUS_NATIVE_SET(result == -1 ? -1 : status);
- do_execfree(); /* free any memory child malloced on vfork */
+ do_execfree(); /* free any memory child malloced on fork */
SP = ORIGMARK;
if (did_pipes) {
int errkid;
int n = 0, n1;
-
+
while (n < sizeof(int)) {
n1 = PerlLIO_read(pp[0],
(void*)(((char*)&errkid)+n),
it's supported. --AD 9/96.
*/
+#ifdef __BEOS__
+# define HZ 1000000
+#endif
+
#ifndef HZ
# ifdef CLK_TCK
# define HZ CLK_TCK