3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
18 /* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
28 #define PERL_IN_PP_SYS_C
32 /* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
34 * The API is from SysV.
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
41 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
49 # include <sys/wait.h>
53 # include <sys/resource.h>
62 # include <sys/select.h>
66 /* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
73 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
88 struct passwd *getpwent (void);
89 #elif defined (VMS) && defined (my_getpwent)
90 struct passwd *Perl_my_getpwent (pTHX);
99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
104 struct group *getgrent (void);
110 # if defined(_MSC_VER) || defined(__MINGW32__)
111 # include <sys/utime.h>
118 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
121 # define my_chsize PerlLIO_chsize
124 # define my_chsize PerlLIO_chsize
126 I32 my_chsize(int fd, Off_t length);
132 #else /* no flock() */
134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
142 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
143 # define FLOCK fcntl_emulate_flock
144 # define FCNTL_EMULATE_FLOCK
145 # else /* no flock() or fcntl(F_SETLK,...) */
147 # define FLOCK lockf_emulate_flock
148 # define LOCKF_EMULATE_FLOCK
150 # endif /* no flock() or fcntl(F_SETLK,...) */
153 static int FLOCK (int, int);
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
171 # endif /* emulating flock() */
173 #endif /* no flock() */
176 static const char zero_but_true[ZBTLEN + 1] = "0 but true";
178 #if defined(I_SYS_ACCESS) && !defined(R_OK)
179 # include <sys/access.h>
182 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183 # define FD_CLOEXEC 1 /* NeXT needs this */
189 /* Missing protos on LynxOS */
190 void sethostent(int);
191 void endhostent(void);
193 void endnetent(void);
194 void setprotoent(int);
195 void endprotoent(void);
196 void setservent(int);
197 void endservent(void);
200 #undef PERL_EFF_ACCESS /* EFFective uid/gid ACCESS */
202 /* AIX 5.2 and below use mktime for localtime, and defines the edge case
203 * for time 0x7fffffff to be valid only in UTC. AIX 5.3 provides localtime64
204 * available in the 32bit environment, which could warrant Configure
205 * checks in the future.
208 #define LOCALTIME_EDGECASE_BROKEN
211 /* F_OK unused: if stat() cannot find it... */
213 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
214 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
215 # define PERL_EFF_ACCESS(p,f) (access((p), (f) | EFF_ONLY_OK))
218 #if !defined(PERL_EFF_ACCESS) && defined(HAS_EACCESS)
219 # ifdef I_SYS_SECURITY
220 # include <sys/security.h>
224 # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f), ACC_SELF))
227 # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f)))
231 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESSX) && defined(ACC_SELF)
233 # define PERL_EFF_ACCESS(p,f) (accessx((p), (f), ACC_SELF))
237 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) \
238 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
239 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
242 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
244 const Uid_t ruid = getuid();
245 const Uid_t euid = geteuid();
246 const Gid_t rgid = getgid();
247 const Gid_t egid = getegid();
251 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
252 Perl_croak(aTHX_ "switching effective uid is not implemented");
255 if (setreuid(euid, ruid))
258 if (setresuid(euid, ruid, (Uid_t)-1))
261 Perl_croak(aTHX_ "entering effective uid failed");
264 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
265 Perl_croak(aTHX_ "switching effective gid is not implemented");
268 if (setregid(egid, rgid))
271 if (setresgid(egid, rgid, (Gid_t)-1))
274 Perl_croak(aTHX_ "entering effective gid failed");
277 res = access(path, mode);
280 if (setreuid(ruid, euid))
283 if (setresuid(ruid, euid, (Uid_t)-1))
286 Perl_croak(aTHX_ "leaving effective uid failed");
289 if (setregid(rgid, egid))
292 if (setresgid(rgid, egid, (Gid_t)-1))
295 Perl_croak(aTHX_ "leaving effective gid failed");
300 # define PERL_EFF_ACCESS(p,f) (emulate_eaccess((p), (f)))
303 #if !defined(PERL_EFF_ACCESS)
304 /* With it or without it: anyway you get a warning: either that
305 it is unused, or it is declared static and never defined.
308 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
310 PERL_UNUSED_ARG(path);
311 PERL_UNUSED_ARG(mode);
312 Perl_croak(aTHX_ "switching effective uid is not implemented");
322 const char * const tmps = POPpconstx;
323 const I32 gimme = GIMME_V;
324 const char *mode = "r";
327 if (PL_op->op_private & OPpOPEN_IN_RAW)
329 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
331 fp = PerlProc_popen(tmps, mode);
333 const char * const type = PL_curcop->cop_io ? SvPV_nolen_const(PL_curcop->cop_io) : NULL;
335 PerlIO_apply_layers(aTHX_ fp,mode,type);
337 if (gimme == G_VOID) {
339 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
342 else if (gimme == G_SCALAR) {
345 PL_rs = &PL_sv_undef;
346 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
347 while (sv_gets(TARG, fp, SvCUR(TARG)) != NULL)
355 SV * const sv = newSV(79);
356 if (sv_gets(sv, fp, 0) == NULL) {
360 XPUSHs(sv_2mortal(sv));
361 if (SvLEN(sv) - SvCUR(sv) > 20) {
362 SvPV_shrink_to_cur(sv);
367 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
368 TAINT; /* "I believe that this is not gratuitous!" */
371 STATUS_NATIVE_CHILD_SET(-1);
372 if (gimme == G_SCALAR)
383 tryAMAGICunTARGET(iter, -1);
385 /* Note that we only ever get here if File::Glob fails to load
386 * without at the same time croaking, for some reason, or if
387 * perl was built with PERL_EXTERNAL_GLOB */
394 * The external globbing program may use things we can't control,
395 * so for security reasons we must assume the worst.
398 taint_proper(PL_no_security, "glob");
402 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
403 PL_last_in_gv = (GV*)*PL_stack_sp--;
405 SAVESPTR(PL_rs); /* This is not permanent, either. */
406 PL_rs = sv_2mortal(newSVpvs("\000"));
409 *SvPVX(PL_rs) = '\n';
413 result = do_readline();
421 PL_last_in_gv = cGVOP_gv;
422 return do_readline();
433 do_join(TARG, &PL_sv_no, MARK, SP);
437 else if (SP == MARK) {
444 tmps = SvPV_const(tmpsv, len);
445 if ((!tmps || !len) && PL_errgv) {
446 SV * const error = ERRSV;
447 SvUPGRADE(error, SVt_PV);
448 if (SvPOK(error) && SvCUR(error))
449 sv_catpvs(error, "\t...caught");
451 tmps = SvPV_const(tmpsv, len);
454 tmpsv = sv_2mortal(newSVpvs("Warning: something's wrong"));
456 Perl_warn(aTHX_ "%"SVf, (void*)tmpsv);
468 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
470 if (SP - MARK != 1) {
472 do_join(TARG, &PL_sv_no, MARK, SP);
474 tmps = SvPV_const(tmpsv, len);
480 tmps = SvROK(tmpsv) ? NULL : SvPV_const(tmpsv, len);
483 SV * const error = ERRSV;
484 SvUPGRADE(error, SVt_PV);
485 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
487 SvSetSV(error,tmpsv);
488 else if (sv_isobject(error)) {
489 HV * const stash = SvSTASH(SvRV(error));
490 GV * const gv = gv_fetchmethod(stash, "PROPAGATE");
492 SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
493 SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
500 call_sv((SV*)GvCV(gv),
501 G_SCALAR|G_EVAL|G_KEEPERR);
502 sv_setsv(error,*PL_stack_sp--);
508 if (SvPOK(error) && SvCUR(error))
509 sv_catpvs(error, "\t...propagated");
512 tmps = SvPV_const(tmpsv, len);
518 tmpsv = sv_2mortal(newSVpvs("Died"));
520 DIE(aTHX_ "%"SVf, (void*)tmpsv);
536 GV * const gv = (GV *)*++MARK;
539 DIE(aTHX_ PL_no_usym, "filehandle");
540 if ((io = GvIOp(gv)))
541 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
544 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
546 /* Method's args are same as ours ... */
547 /* ... except handle is replaced by the object */
548 *MARK-- = SvTIED_obj((SV*)io, mg);
552 call_method("OPEN", G_SCALAR);
566 tmps = SvPV_const(sv, len);
567 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, NULL, MARK+1, (SP-MARK));
570 PUSHi( (I32)PL_forkprocess );
571 else if (PL_forkprocess == 0) /* we are a new child */
583 GV * const gv = (MAXARG == 0) ? PL_defoutgv : (GV*)POPs;
585 if (gv && (io = GvIO(gv))
586 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
589 XPUSHs(SvTIED_obj((SV*)io, mg));
592 call_method("CLOSE", G_SCALAR);
598 PUSHs(boolSV(do_close(gv, TRUE)));
611 GV * const wgv = (GV*)POPs;
612 GV * const rgv = (GV*)POPs;
617 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
618 DIE(aTHX_ PL_no_usym, "filehandle");
623 do_close(rgv, FALSE);
625 do_close(wgv, FALSE);
627 if (PerlProc_pipe(fd) < 0)
630 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
631 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
632 IoOFP(rstio) = IoIFP(rstio);
633 IoIFP(wstio) = IoOFP(wstio);
634 IoTYPE(rstio) = IoTYPE_RDONLY;
635 IoTYPE(wstio) = IoTYPE_WRONLY;
637 if (!IoIFP(rstio) || !IoOFP(wstio)) {
638 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
639 else PerlLIO_close(fd[0]);
640 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
641 else PerlLIO_close(fd[1]);
644 #if defined(HAS_FCNTL) && defined(F_SETFD)
645 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
646 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
653 DIE(aTHX_ PL_no_func, "pipe");
669 if (gv && (io = GvIO(gv))
670 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
673 XPUSHs(SvTIED_obj((SV*)io, mg));
676 call_method("FILENO", G_SCALAR);
682 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
683 /* Can't do this because people seem to do things like
684 defined(fileno($foo)) to check whether $foo is a valid fh.
685 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
686 report_evil_fh(gv, io, PL_op->op_type);
691 PUSHi(PerlIO_fileno(fp));
704 anum = PerlLIO_umask(0);
705 (void)PerlLIO_umask(anum);
708 anum = PerlLIO_umask(POPi);
709 TAINT_PROPER("umask");
712 /* Only DIE if trying to restrict permissions on "user" (self).
713 * Otherwise it's harmless and more useful to just return undef
714 * since 'group' and 'other' concepts probably don't exist here. */
715 if (MAXARG >= 1 && (POPi & 0700))
716 DIE(aTHX_ "umask not implemented");
717 XPUSHs(&PL_sv_undef);
739 if (gv && (io = GvIO(gv))
740 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
743 XPUSHs(SvTIED_obj((SV*)io, mg));
748 call_method("BINMODE", G_SCALAR);
755 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
756 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
757 report_evil_fh(gv, io, PL_op->op_type);
758 SETERRNO(EBADF,RMS_IFI);
763 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
764 (discp) ? SvPV_nolen_const(discp) : NULL)) {
765 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
766 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
767 mode_from_discipline(discp),
768 (discp) ? SvPV_nolen_const(discp) : NULL)) {
788 const I32 markoff = MARK - PL_stack_base;
789 const char *methname;
790 int how = PERL_MAGIC_tied;
794 switch(SvTYPE(varsv)) {
796 methname = "TIEHASH";
797 HvEITER_set((HV *)varsv, 0);
800 methname = "TIEARRAY";
803 #ifdef GV_UNIQUE_CHECK
804 if (GvUNIQUE((GV*)varsv)) {
805 Perl_croak(aTHX_ "Attempt to tie unique GV");
808 methname = "TIEHANDLE";
809 how = PERL_MAGIC_tiedscalar;
810 /* For tied filehandles, we apply tiedscalar magic to the IO
811 slot of the GP rather than the GV itself. AMS 20010812 */
813 GvIOp(varsv) = newIO();
814 varsv = (SV *)GvIOp(varsv);
817 methname = "TIESCALAR";
818 how = PERL_MAGIC_tiedscalar;
822 if (sv_isobject(*MARK)) {
824 PUSHSTACKi(PERLSI_MAGIC);
826 EXTEND(SP,(I32)items);
830 call_method(methname, G_SCALAR);
833 /* Not clear why we don't call call_method here too.
834 * perhaps to get different error message ?
836 stash = gv_stashsv(*MARK, FALSE);
837 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
838 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
839 methname, (void*)*MARK);
842 PUSHSTACKi(PERLSI_MAGIC);
844 EXTEND(SP,(I32)items);
848 call_sv((SV*)GvCV(gv), G_SCALAR);
854 if (sv_isobject(sv)) {
855 sv_unmagic(varsv, how);
856 /* Croak if a self-tie on an aggregate is attempted. */
857 if (varsv == SvRV(sv) &&
858 (SvTYPE(varsv) == SVt_PVAV ||
859 SvTYPE(varsv) == SVt_PVHV))
861 "Self-ties of arrays and hashes are not supported");
862 sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0);
865 SP = PL_stack_base + markoff;
875 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
876 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
878 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
881 if ((mg = SvTIED_mg(sv, how))) {
882 SV * const obj = SvRV(SvTIED_obj(sv, mg));
884 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
886 if (gv && isGV(gv) && (cv = GvCV(gv))) {
888 XPUSHs(SvTIED_obj((SV*)gv, mg));
889 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
892 call_sv((SV *)cv, G_VOID);
896 else if (mg && SvREFCNT(obj) > 1 && ckWARN(WARN_UNTIE)) {
897 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
898 "untie attempted while %"UVuf" inner references still exist",
899 (UV)SvREFCNT(obj) - 1 ) ;
903 sv_unmagic(sv, how) ;
913 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
914 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
916 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
919 if ((mg = SvTIED_mg(sv, how))) {
920 SV *osv = SvTIED_obj(sv, mg);
921 if (osv == mg->mg_obj)
922 osv = sv_mortalcopy(osv);
936 HV * const hv = (HV*)POPs;
937 SV * const sv = sv_2mortal(newSVpvs("AnyDBM_File"));
938 stash = gv_stashsv(sv, FALSE);
939 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
941 require_pv("AnyDBM_File.pm");
943 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
944 DIE(aTHX_ "No dbm on this machine");
954 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
956 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
959 call_sv((SV*)GvCV(gv), G_SCALAR);
962 if (!sv_isobject(TOPs)) {
967 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
970 call_sv((SV*)GvCV(gv), G_SCALAR);
974 if (sv_isobject(TOPs)) {
975 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
976 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, NULL, 0);
993 struct timeval timebuf;
994 struct timeval *tbuf = &timebuf;
997 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1002 # if BYTEORDER & 0xf0000
1003 # define ORDERBYTE (0x88888888 - BYTEORDER)
1005 # define ORDERBYTE (0x4444 - BYTEORDER)
1011 for (i = 1; i <= 3; i++) {
1012 SV * const sv = SP[i];
1015 if (SvREADONLY(sv)) {
1017 sv_force_normal_flags(sv, 0);
1018 if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0))
1019 DIE(aTHX_ PL_no_modify);
1022 if (ckWARN(WARN_MISC))
1023 Perl_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask");
1024 SvPV_force_nolen(sv); /* force string conversion */
1031 /* little endians can use vecs directly */
1032 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1039 masksize = NFDBITS / NBBY;
1041 masksize = sizeof(long); /* documented int, everyone seems to use long */
1043 Zero(&fd_sets[0], 4, char*);
1046 # if SELECT_MIN_BITS == 1
1047 growsize = sizeof(fd_set);
1049 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1050 # undef SELECT_MIN_BITS
1051 # define SELECT_MIN_BITS __FD_SETSIZE
1053 /* If SELECT_MIN_BITS is greater than one we most probably will want
1054 * to align the sizes with SELECT_MIN_BITS/8 because for example
1055 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1056 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1057 * on (sets/tests/clears bits) is 32 bits. */
1058 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1066 timebuf.tv_sec = (long)value;
1067 value -= (NV)timebuf.tv_sec;
1068 timebuf.tv_usec = (long)(value * 1000000.0);
1073 for (i = 1; i <= 3; i++) {
1075 if (!SvOK(sv) || SvCUR(sv) == 0) {
1082 Sv_Grow(sv, growsize);
1086 while (++j <= growsize) {
1090 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1092 Newx(fd_sets[i], growsize, char);
1093 for (offset = 0; offset < growsize; offset += masksize) {
1094 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1095 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1098 fd_sets[i] = SvPVX(sv);
1102 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1103 /* Can't make just the (void*) conditional because that would be
1104 * cpp #if within cpp macro, and not all compilers like that. */
1105 nfound = PerlSock_select(
1107 (Select_fd_set_t) fd_sets[1],
1108 (Select_fd_set_t) fd_sets[2],
1109 (Select_fd_set_t) fd_sets[3],
1110 (void*) tbuf); /* Workaround for compiler bug. */
1112 nfound = PerlSock_select(
1114 (Select_fd_set_t) fd_sets[1],
1115 (Select_fd_set_t) fd_sets[2],
1116 (Select_fd_set_t) fd_sets[3],
1119 for (i = 1; i <= 3; i++) {
1122 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1124 for (offset = 0; offset < growsize; offset += masksize) {
1125 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1126 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1128 Safefree(fd_sets[i]);
1135 if (GIMME == G_ARRAY && tbuf) {
1136 value = (NV)(timebuf.tv_sec) +
1137 (NV)(timebuf.tv_usec) / 1000000.0;
1138 PUSHs(sv_2mortal(newSVnv(value)));
1142 DIE(aTHX_ "select not implemented");
1147 Perl_setdefout(pTHX_ GV *gv)
1150 SvREFCNT_inc_simple_void(gv);
1152 SvREFCNT_dec(PL_defoutgv);
1160 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1161 GV * egv = GvEGV(PL_defoutgv);
1167 XPUSHs(&PL_sv_undef);
1169 GV * const * const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1170 if (gvp && *gvp == egv) {
1171 gv_efullname4(TARG, PL_defoutgv, NULL, TRUE);
1175 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1180 if (!GvIO(newdefout))
1181 gv_IOadd(newdefout);
1182 setdefout(newdefout);
1193 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
1195 if (gv && (io = GvIO(gv))
1196 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1198 const I32 gimme = GIMME_V;
1200 XPUSHs(SvTIED_obj((SV*)io, mg));
1203 call_method("GETC", gimme);
1206 if (gimme == G_SCALAR)
1207 SvSetMagicSV_nosteal(TARG, TOPs);
1210 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1211 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1212 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1213 report_evil_fh(gv, io, PL_op->op_type);
1214 SETERRNO(EBADF,RMS_IFI);
1218 sv_setpvn(TARG, " ", 1);
1219 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1220 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1221 /* Find out how many bytes the char needs */
1222 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1225 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1226 SvCUR_set(TARG,1+len);
1235 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1238 register PERL_CONTEXT *cx;
1239 const I32 gimme = GIMME_V;
1244 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1246 cx->blk_sub.retop = retop;
1248 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
1250 setdefout(gv); /* locally select filehandle so $% et al work */
1281 DIE(aTHX_ "Not a format reference");
1285 SV * const tmpsv = sv_newmortal();
1287 gv_efullname4(tmpsv, fgv, NULL, FALSE);
1288 name = SvPV_nolen_const(tmpsv);
1290 DIE(aTHX_ "Undefined format \"%s\" called", name);
1291 DIE(aTHX_ "Not a format reference");
1294 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1296 IoFLAGS(io) &= ~IOf_DIDTOP;
1297 return doform(cv,gv,PL_op->op_next);
1303 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1304 register IO * const io = GvIOp(gv);
1309 register PERL_CONTEXT *cx;
1311 if (!io || !(ofp = IoOFP(io)))
1314 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1315 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1317 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1318 PL_formtarget != PL_toptarget)
1322 if (!IoTOP_GV(io)) {
1325 if (!IoTOP_NAME(io)) {
1327 if (!IoFMT_NAME(io))
1328 IoFMT_NAME(io) = savepv(GvNAME(gv));
1329 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1330 topgv = gv_fetchsv(topname, 0, SVt_PVFM);
1331 if ((topgv && GvFORM(topgv)) ||
1332 !gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM))
1333 IoTOP_NAME(io) = savesvpv(topname);
1335 IoTOP_NAME(io) = savepvs("top");
1337 topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM);
1338 if (!topgv || !GvFORM(topgv)) {
1339 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1342 IoTOP_GV(io) = topgv;
1344 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1345 I32 lines = IoLINES_LEFT(io);
1346 const char *s = SvPVX_const(PL_formtarget);
1347 if (lines <= 0) /* Yow, header didn't even fit!!! */
1349 while (lines-- > 0) {
1350 s = strchr(s, '\n');
1356 const STRLEN save = SvCUR(PL_formtarget);
1357 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1358 do_print(PL_formtarget, ofp);
1359 SvCUR_set(PL_formtarget, save);
1360 sv_chop(PL_formtarget, s);
1361 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1364 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1365 do_print(PL_formfeed, ofp);
1366 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1368 PL_formtarget = PL_toptarget;
1369 IoFLAGS(io) |= IOf_DIDTOP;
1372 DIE(aTHX_ "bad top format reference");
1375 SV * const sv = sv_newmortal();
1377 gv_efullname4(sv, fgv, NULL, FALSE);
1378 name = SvPV_nolen_const(sv);
1380 DIE(aTHX_ "Undefined top format \"%s\" called", name);
1382 DIE(aTHX_ "Undefined top format called");
1384 if (cv && CvCLONE(cv))
1385 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1386 return doform(cv, gv, PL_op);
1390 POPBLOCK(cx,PL_curpm);
1396 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1398 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1399 else if (ckWARN(WARN_CLOSED))
1400 report_evil_fh(gv, io, PL_op->op_type);
1405 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1406 if (ckWARN(WARN_IO))
1407 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1409 if (!do_print(PL_formtarget, fp))
1412 FmLINES(PL_formtarget) = 0;
1413 SvCUR_set(PL_formtarget, 0);
1414 *SvEND(PL_formtarget) = '\0';
1415 if (IoFLAGS(io) & IOf_FLUSH)
1416 (void)PerlIO_flush(fp);
1421 PL_formtarget = PL_bodytarget;
1423 PERL_UNUSED_VAR(newsp);
1424 PERL_UNUSED_VAR(gimme);
1425 return cx->blk_sub.retop;
1430 dVAR; dSP; dMARK; dORIGMARK;
1436 GV * const gv = (PL_op->op_flags & OPf_STACKED) ? (GV*)*++MARK : PL_defoutgv;
1438 if (gv && (io = GvIO(gv))
1439 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1441 if (MARK == ORIGMARK) {
1444 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1448 *MARK = SvTIED_obj((SV*)io, mg);
1451 call_method("PRINTF", G_SCALAR);
1454 MARK = ORIGMARK + 1;
1461 if (!(io = GvIO(gv))) {
1462 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1463 report_evil_fh(gv, io, PL_op->op_type);
1464 SETERRNO(EBADF,RMS_IFI);
1467 else if (!(fp = IoOFP(io))) {
1468 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1470 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1471 else if (ckWARN(WARN_CLOSED))
1472 report_evil_fh(gv, io, PL_op->op_type);
1474 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1478 do_sprintf(sv, SP - MARK, MARK + 1);
1479 if (!do_print(sv, fp))
1482 if (IoFLAGS(io) & IOf_FLUSH)
1483 if (PerlIO_flush(fp) == EOF)
1494 PUSHs(&PL_sv_undef);
1502 const int perm = (MAXARG > 3) ? POPi : 0666;
1503 const int mode = POPi;
1504 SV * const sv = POPs;
1505 GV * const gv = (GV *)POPs;
1508 /* Need TIEHANDLE method ? */
1509 const char * const tmps = SvPV_const(sv, len);
1510 /* FIXME? do_open should do const */
1511 if (do_open(gv, tmps, len, TRUE, mode, perm, NULL)) {
1512 IoLINES(GvIOp(gv)) = 0;
1516 PUSHs(&PL_sv_undef);
1523 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1529 Sock_size_t bufsize;
1537 bool charstart = FALSE;
1538 STRLEN charskip = 0;
1541 GV * const gv = (GV*)*++MARK;
1542 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1543 && gv && (io = GvIO(gv)) )
1545 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1549 *MARK = SvTIED_obj((SV*)io, mg);
1551 call_method("READ", G_SCALAR);
1565 sv_setpvn(bufsv, "", 0);
1566 length = SvIVx(*++MARK);
1569 offset = SvIVx(*++MARK);
1573 if (!io || !IoIFP(io)) {
1574 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1575 report_evil_fh(gv, io, PL_op->op_type);
1576 SETERRNO(EBADF,RMS_IFI);
1579 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1580 buffer = SvPVutf8_force(bufsv, blen);
1581 /* UTF-8 may not have been set if they are all low bytes */
1586 buffer = SvPV_force(bufsv, blen);
1587 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1590 DIE(aTHX_ "Negative length");
1598 if (PL_op->op_type == OP_RECV) {
1599 char namebuf[MAXPATHLEN];
1600 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1601 bufsize = sizeof (struct sockaddr_in);
1603 bufsize = sizeof namebuf;
1605 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1609 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1610 /* 'offset' means 'flags' here */
1611 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1612 (struct sockaddr *)namebuf, &bufsize);
1616 /* Bogus return without padding */
1617 bufsize = sizeof (struct sockaddr_in);
1619 SvCUR_set(bufsv, count);
1620 *SvEND(bufsv) = '\0';
1621 (void)SvPOK_only(bufsv);
1625 /* This should not be marked tainted if the fp is marked clean */
1626 if (!(IoFLAGS(io) & IOf_UNTAINT))
1627 SvTAINTED_on(bufsv);
1629 sv_setpvn(TARG, namebuf, bufsize);
1634 if (PL_op->op_type == OP_RECV)
1635 DIE(aTHX_ PL_no_sock_func, "recv");
1637 if (DO_UTF8(bufsv)) {
1638 /* offset adjust in characters not bytes */
1639 blen = sv_len_utf8(bufsv);
1642 if (-offset > (int)blen)
1643 DIE(aTHX_ "Offset outside string");
1646 if (DO_UTF8(bufsv)) {
1647 /* convert offset-as-chars to offset-as-bytes */
1648 if (offset >= (int)blen)
1649 offset += SvCUR(bufsv) - blen;
1651 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1654 bufsize = SvCUR(bufsv);
1655 /* Allocating length + offset + 1 isn't perfect in the case of reading
1656 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1658 (should be 2 * length + offset + 1, or possibly something longer if
1659 PL_encoding is true) */
1660 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1661 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1662 Zero(buffer+bufsize, offset-bufsize, char);
1664 buffer = buffer + offset;
1666 read_target = bufsv;
1668 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1669 concatenate it to the current buffer. */
1671 /* Truncate the existing buffer to the start of where we will be
1673 SvCUR_set(bufsv, offset);
1675 read_target = sv_newmortal();
1676 SvUPGRADE(read_target, SVt_PV);
1677 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1680 if (PL_op->op_type == OP_SYSREAD) {
1681 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1682 if (IoTYPE(io) == IoTYPE_SOCKET) {
1683 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1689 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1694 #ifdef HAS_SOCKET__bad_code_maybe
1695 if (IoTYPE(io) == IoTYPE_SOCKET) {
1696 char namebuf[MAXPATHLEN];
1697 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1698 bufsize = sizeof (struct sockaddr_in);
1700 bufsize = sizeof namebuf;
1702 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1703 (struct sockaddr *)namebuf, &bufsize);
1708 count = PerlIO_read(IoIFP(io), buffer, length);
1709 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1710 if (count == 0 && PerlIO_error(IoIFP(io)))
1714 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1715 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1718 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1719 *SvEND(read_target) = '\0';
1720 (void)SvPOK_only(read_target);
1721 if (fp_utf8 && !IN_BYTES) {
1722 /* Look at utf8 we got back and count the characters */
1723 const char *bend = buffer + count;
1724 while (buffer < bend) {
1726 skip = UTF8SKIP(buffer);
1729 if (buffer - charskip + skip > bend) {
1730 /* partial character - try for rest of it */
1731 length = skip - (bend-buffer);
1732 offset = bend - SvPVX_const(bufsv);
1744 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1745 provided amount read (count) was what was requested (length)
1747 if (got < wanted && count == length) {
1748 length = wanted - got;
1749 offset = bend - SvPVX_const(bufsv);
1752 /* return value is character count */
1756 else if (buffer_utf8) {
1757 /* Let svcatsv upgrade the bytes we read in to utf8.
1758 The buffer is a mortal so will be freed soon. */
1759 sv_catsv_nomg(bufsv, read_target);
1762 /* This should not be marked tainted if the fp is marked clean */
1763 if (!(IoFLAGS(io) & IOf_UNTAINT))
1764 SvTAINTED_on(bufsv);
1776 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1784 const int op_type = PL_op->op_type;
1786 GV *const gv = (GV*)*++MARK;
1787 if (PL_op->op_type == OP_SYSWRITE
1788 && gv && (io = GvIO(gv))
1789 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1793 if (MARK == SP - 1) {
1795 sv = sv_2mortal(newSViv(sv_len(*SP)));
1801 *(ORIGMARK+1) = SvTIED_obj((SV*)io, mg);
1803 call_method("WRITE", G_SCALAR);
1816 if (op_type == OP_SYSWRITE) {
1818 length = (Size_t) sv_len(bufsv);
1820 #if Size_t_size > IVSIZE
1821 length = (Size_t)SvNVx(*++MARK);
1823 length = (Size_t)SvIVx(*++MARK);
1825 if ((SSize_t)length < 0)
1826 DIE(aTHX_ "Negative length");
1831 if (!io || !IoIFP(io)) {
1833 if (ckWARN(WARN_CLOSED))
1834 report_evil_fh(gv, io, PL_op->op_type);
1835 SETERRNO(EBADF,RMS_IFI);
1839 if (PerlIO_isutf8(IoIFP(io))) {
1840 if (!SvUTF8(bufsv)) {
1841 bufsv = sv_2mortal(newSVsv(bufsv));
1842 buffer = sv_2pvutf8(bufsv, &blen);
1844 buffer = SvPV_const(bufsv, blen);
1847 if (DO_UTF8(bufsv)) {
1848 /* Not modifying source SV, so making a temporary copy. */
1849 bufsv = sv_2mortal(newSVsv(bufsv));
1850 sv_utf8_downgrade(bufsv, FALSE);
1852 buffer = SvPV_const(bufsv, blen);
1855 if (op_type == OP_SYSWRITE) {
1857 if (DO_UTF8(bufsv)) {
1858 /* length and offset are in chars */
1859 blen = sv_len_utf8(bufsv);
1862 offset = SvIVx(*++MARK);
1864 if (-offset > (IV)blen)
1865 DIE(aTHX_ "Offset outside string");
1867 } else if (offset >= (IV)blen && blen > 0)
1868 DIE(aTHX_ "Offset outside string");
1871 if (length > blen - offset)
1872 length = blen - offset;
1873 if (DO_UTF8(bufsv)) {
1874 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1875 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1878 buffer = buffer+offset;
1880 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1881 if (IoTYPE(io) == IoTYPE_SOCKET) {
1882 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1888 /* See the note at doio.c:do_print about filesize limits. --jhi */
1889 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1895 const int flags = SvIVx(*++MARK);
1898 char * const sockbuf = SvPVx(*++MARK, mlen);
1899 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1900 flags, (struct sockaddr *)sockbuf, mlen);
1904 = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, flags);
1909 DIE(aTHX_ PL_no_sock_func, "send");
1915 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1916 #if Size_t_size > IVSIZE
1934 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1936 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1938 if (io && !IoIFP(io)) {
1939 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1941 IoFLAGS(io) &= ~IOf_START;
1942 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, NULL);
1943 sv_setpvn(GvSV(gv), "-", 1);
1944 SvSETMAGIC(GvSV(gv));
1946 else if (!nextargv(gv))
1951 gv = PL_last_in_gv; /* eof */
1954 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1957 IO * const io = GvIO(gv);
1959 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
1961 XPUSHs(SvTIED_obj((SV*)io, mg));
1964 call_method("EOF", G_SCALAR);
1971 PUSHs(boolSV(!gv || do_eof(gv)));
1983 PL_last_in_gv = (GV*)POPs;
1986 if (gv && (io = GvIO(gv))
1987 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1990 XPUSHs(SvTIED_obj((SV*)io, mg));
1993 call_method("TELL", G_SCALAR);
1999 #if LSEEKSIZE > IVSIZE
2000 PUSHn( do_tell(gv) );
2002 PUSHi( do_tell(gv) );
2011 const int whence = POPi;
2012 #if LSEEKSIZE > IVSIZE
2013 const Off_t offset = (Off_t)SvNVx(POPs);
2015 const Off_t offset = (Off_t)SvIVx(POPs);
2019 GV * const gv = PL_last_in_gv = (GV*)POPs;
2021 if (gv && (io = GvIO(gv))
2022 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2025 XPUSHs(SvTIED_obj((SV*)io, mg));
2026 #if LSEEKSIZE > IVSIZE
2027 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2029 XPUSHs(sv_2mortal(newSViv(offset)));
2031 XPUSHs(sv_2mortal(newSViv(whence)));
2034 call_method("SEEK", G_SCALAR);
2040 if (PL_op->op_type == OP_SEEK)
2041 PUSHs(boolSV(do_seek(gv, offset, whence)));
2043 const Off_t sought = do_sysseek(gv, offset, whence);
2045 PUSHs(&PL_sv_undef);
2047 SV* const sv = sought ?
2048 #if LSEEKSIZE > IVSIZE
2053 : newSVpvn(zero_but_true, ZBTLEN);
2054 PUSHs(sv_2mortal(sv));
2064 /* There seems to be no consensus on the length type of truncate()
2065 * and ftruncate(), both off_t and size_t have supporters. In
2066 * general one would think that when using large files, off_t is
2067 * at least as wide as size_t, so using an off_t should be okay. */
2068 /* XXX Configure probe for the length type of *truncate() needed XXX */
2071 #if Off_t_size > IVSIZE
2076 /* Checking for length < 0 is problematic as the type might or
2077 * might not be signed: if it is not, clever compilers will moan. */
2078 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2085 if (PL_op->op_flags & OPf_SPECIAL) {
2086 tmpgv = gv_fetchsv(POPs, 0, SVt_PVIO);
2095 TAINT_PROPER("truncate");
2096 if (!(fp = IoIFP(io))) {
2102 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2104 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2111 SV * const sv = POPs;
2114 if (SvTYPE(sv) == SVt_PVGV) {
2115 tmpgv = (GV*)sv; /* *main::FRED for example */
2116 goto do_ftruncate_gv;
2118 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2119 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2120 goto do_ftruncate_gv;
2122 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2123 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2124 goto do_ftruncate_io;
2127 name = SvPV_nolen_const(sv);
2128 TAINT_PROPER("truncate");
2130 if (truncate(name, len) < 0)
2134 const int tmpfd = PerlLIO_open(name, O_RDWR);
2139 if (my_chsize(tmpfd, len) < 0)
2141 PerlLIO_close(tmpfd);
2150 SETERRNO(EBADF,RMS_IFI);
2158 SV * const argsv = POPs;
2159 const unsigned int func = POPu;
2160 const int optype = PL_op->op_type;
2161 GV * const gv = (GV*)POPs;
2162 IO * const io = gv ? GvIOn(gv) : NULL;
2166 if (!io || !argsv || !IoIFP(io)) {
2167 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2168 report_evil_fh(gv, io, PL_op->op_type);
2169 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2173 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2176 s = SvPV_force(argsv, len);
2177 need = IOCPARM_LEN(func);
2179 s = Sv_Grow(argsv, need + 1);
2180 SvCUR_set(argsv, need);
2183 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2186 retval = SvIV(argsv);
2187 s = INT2PTR(char*,retval); /* ouch */
2190 TAINT_PROPER(PL_op_desc[optype]);
2192 if (optype == OP_IOCTL)
2194 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2196 DIE(aTHX_ "ioctl is not implemented");
2200 DIE(aTHX_ "fcntl is not implemented");
2202 #if defined(OS2) && defined(__EMX__)
2203 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2205 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2209 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2211 if (s[SvCUR(argsv)] != 17)
2212 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2214 s[SvCUR(argsv)] = 0; /* put our null back */
2215 SvSETMAGIC(argsv); /* Assume it has changed */
2224 PUSHp(zero_but_true, ZBTLEN);
2237 const int argtype = POPi;
2238 GV * const gv = (MAXARG == 0) ? PL_last_in_gv : (GV*)POPs;
2240 if (gv && (io = GvIO(gv)))
2246 /* XXX Looks to me like io is always NULL at this point */
2248 (void)PerlIO_flush(fp);
2249 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2252 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2253 report_evil_fh(gv, io, PL_op->op_type);
2255 SETERRNO(EBADF,RMS_IFI);
2260 DIE(aTHX_ PL_no_func, "flock()");
2270 const int protocol = POPi;
2271 const int type = POPi;
2272 const int domain = POPi;
2273 GV * const gv = (GV*)POPs;
2274 register IO * const io = gv ? GvIOn(gv) : NULL;
2278 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2279 report_evil_fh(gv, io, PL_op->op_type);
2280 if (io && IoIFP(io))
2281 do_close(gv, FALSE);
2282 SETERRNO(EBADF,LIB_INVARG);
2287 do_close(gv, FALSE);
2289 TAINT_PROPER("socket");
2290 fd = PerlSock_socket(domain, type, protocol);
2293 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2294 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2295 IoTYPE(io) = IoTYPE_SOCKET;
2296 if (!IoIFP(io) || !IoOFP(io)) {
2297 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2298 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2299 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2302 #if defined(HAS_FCNTL) && defined(F_SETFD)
2303 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2307 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2312 DIE(aTHX_ PL_no_sock_func, "socket");
2318 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2320 const int protocol = POPi;
2321 const int type = POPi;
2322 const int domain = POPi;
2323 GV * const gv2 = (GV*)POPs;
2324 GV * const gv1 = (GV*)POPs;
2325 register IO * const io1 = gv1 ? GvIOn(gv1) : NULL;
2326 register IO * const io2 = gv2 ? GvIOn(gv2) : NULL;
2329 if (!gv1 || !gv2 || !io1 || !io2) {
2330 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2332 report_evil_fh(gv1, io1, PL_op->op_type);
2334 report_evil_fh(gv1, io2, PL_op->op_type);
2336 if (io1 && IoIFP(io1))
2337 do_close(gv1, FALSE);
2338 if (io2 && IoIFP(io2))
2339 do_close(gv2, FALSE);
2344 do_close(gv1, FALSE);
2346 do_close(gv2, FALSE);
2348 TAINT_PROPER("socketpair");
2349 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2351 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2352 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2353 IoTYPE(io1) = IoTYPE_SOCKET;
2354 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2355 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2356 IoTYPE(io2) = IoTYPE_SOCKET;
2357 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2358 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2359 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2360 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2361 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2362 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2363 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2366 #if defined(HAS_FCNTL) && defined(F_SETFD)
2367 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2368 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2373 DIE(aTHX_ PL_no_sock_func, "socketpair");
2381 SV * const addrsv = POPs;
2382 /* OK, so on what platform does bind modify addr? */
2384 GV * const gv = (GV*)POPs;
2385 register IO * const io = GvIOn(gv);
2389 if (!io || !IoIFP(io))
2392 addr = SvPV_const(addrsv, len);
2393 TAINT_PROPER("bind");
2394 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2395 (struct sockaddr *)addr, len) >= 0)
2405 if (ckWARN(WARN_CLOSED))
2406 report_evil_fh(gv, io, PL_op->op_type);
2407 SETERRNO(EBADF,SS_IVCHAN);
2410 DIE(aTHX_ PL_no_sock_func, "bind");
2418 SV * const addrsv = POPs;
2419 GV * const gv = (GV*)POPs;
2420 register IO * const io = GvIOn(gv);
2424 if (!io || !IoIFP(io))
2427 addr = SvPV_const(addrsv, len);
2428 TAINT_PROPER("connect");
2429 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2435 if (ckWARN(WARN_CLOSED))
2436 report_evil_fh(gv, io, PL_op->op_type);
2437 SETERRNO(EBADF,SS_IVCHAN);
2440 DIE(aTHX_ PL_no_sock_func, "connect");
2448 const int backlog = POPi;
2449 GV * const gv = (GV*)POPs;
2450 register IO * const io = gv ? GvIOn(gv) : NULL;
2452 if (!gv || !io || !IoIFP(io))
2455 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2461 if (ckWARN(WARN_CLOSED))
2462 report_evil_fh(gv, io, PL_op->op_type);
2463 SETERRNO(EBADF,SS_IVCHAN);
2466 DIE(aTHX_ PL_no_sock_func, "listen");
2476 char namebuf[MAXPATHLEN];
2477 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2478 Sock_size_t len = sizeof (struct sockaddr_in);
2480 Sock_size_t len = sizeof namebuf;
2482 GV * const ggv = (GV*)POPs;
2483 GV * const ngv = (GV*)POPs;
2492 if (!gstio || !IoIFP(gstio))
2496 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2500 do_close(ngv, FALSE);
2501 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2502 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2503 IoTYPE(nstio) = IoTYPE_SOCKET;
2504 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2505 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2506 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2507 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2510 #if defined(HAS_FCNTL) && defined(F_SETFD)
2511 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2515 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2516 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2518 #ifdef __SCO_VERSION__
2519 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2522 PUSHp(namebuf, len);
2526 if (ckWARN(WARN_CLOSED))
2527 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2528 SETERRNO(EBADF,SS_IVCHAN);
2534 DIE(aTHX_ PL_no_sock_func, "accept");
2542 const int how = POPi;
2543 GV * const gv = (GV*)POPs;
2544 register IO * const io = GvIOn(gv);
2546 if (!io || !IoIFP(io))
2549 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2553 if (ckWARN(WARN_CLOSED))
2554 report_evil_fh(gv, io, PL_op->op_type);
2555 SETERRNO(EBADF,SS_IVCHAN);
2558 DIE(aTHX_ PL_no_sock_func, "shutdown");
2566 const int optype = PL_op->op_type;
2567 SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
2568 const unsigned int optname = (unsigned int) POPi;
2569 const unsigned int lvl = (unsigned int) POPi;
2570 GV * const gv = (GV*)POPs;
2571 register IO * const io = GvIOn(gv);
2575 if (!io || !IoIFP(io))
2578 fd = PerlIO_fileno(IoIFP(io));
2582 (void)SvPOK_only(sv);
2586 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2593 #if defined(__SYMBIAN32__)
2594 # define SETSOCKOPT_OPTION_VALUE_T void *
2596 # define SETSOCKOPT_OPTION_VALUE_T const char *
2598 /* XXX TODO: We need to have a proper type (a Configure probe,
2599 * etc.) for what the C headers think of the third argument of
2600 * setsockopt(), the option_value read-only buffer: is it
2601 * a "char *", or a "void *", const or not. Some compilers
2602 * don't take kindly to e.g. assuming that "char *" implicitly
2603 * promotes to a "void *", or to explicitly promoting/demoting
2604 * consts to non/vice versa. The "const void *" is the SUS
2605 * definition, but that does not fly everywhere for the above
2607 SETSOCKOPT_OPTION_VALUE_T buf;
2611 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2615 aint = (int)SvIV(sv);
2616 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
2619 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2628 if (ckWARN(WARN_CLOSED))
2629 report_evil_fh(gv, io, optype);
2630 SETERRNO(EBADF,SS_IVCHAN);
2635 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2643 const int optype = PL_op->op_type;
2644 GV * const gv = (GV*)POPs;
2645 register IO * const io = GvIOn(gv);
2650 if (!io || !IoIFP(io))
2653 sv = sv_2mortal(newSV(257));
2654 (void)SvPOK_only(sv);
2658 fd = PerlIO_fileno(IoIFP(io));
2660 case OP_GETSOCKNAME:
2661 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2664 case OP_GETPEERNAME:
2665 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2667 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2669 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2670 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2671 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2672 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
2673 sizeof(u_short) + sizeof(struct in_addr))) {
2680 #ifdef BOGUS_GETNAME_RETURN
2681 /* Interactive Unix, getpeername() and getsockname()
2682 does not return valid namelen */
2683 if (len == BOGUS_GETNAME_RETURN)
2684 len = sizeof(struct sockaddr);
2692 if (ckWARN(WARN_CLOSED))
2693 report_evil_fh(gv, io, optype);
2694 SETERRNO(EBADF,SS_IVCHAN);
2699 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2713 if (PL_op->op_flags & OPf_REF) {
2715 if (PL_op->op_type == OP_LSTAT) {
2716 if (gv != PL_defgv) {
2717 do_fstat_warning_check:
2718 if (ckWARN(WARN_IO))
2719 Perl_warner(aTHX_ packWARN(WARN_IO),
2720 "lstat() on filehandle %s", GvENAME(gv));
2721 } else if (PL_laststype != OP_LSTAT)
2722 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2726 if (gv != PL_defgv) {
2727 PL_laststype = OP_STAT;
2729 sv_setpvn(PL_statname, "", 0);
2730 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2731 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2733 if (PL_laststatval < 0) {
2734 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2735 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2740 SV* const sv = POPs;
2741 if (SvTYPE(sv) == SVt_PVGV) {
2745 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2747 if (PL_op->op_type == OP_LSTAT)
2748 goto do_fstat_warning_check;
2751 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2753 PL_laststype = PL_op->op_type;
2754 if (PL_op->op_type == OP_LSTAT)
2755 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2757 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2758 if (PL_laststatval < 0) {
2759 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2760 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2766 if (gimme != G_ARRAY) {
2767 if (gimme != G_VOID)
2768 XPUSHs(boolSV(max));
2774 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2775 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2776 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2777 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2778 #if Uid_t_size > IVSIZE
2779 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2781 # if Uid_t_sign <= 0
2782 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2784 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2787 #if Gid_t_size > IVSIZE
2788 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2790 # if Gid_t_sign <= 0
2791 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2793 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2796 #ifdef USE_STAT_RDEV
2797 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2799 PUSHs(sv_2mortal(newSVpvs("")));
2801 #if Off_t_size > IVSIZE
2802 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2804 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2807 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2808 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2809 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2811 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2812 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2813 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2815 #ifdef USE_STAT_BLOCKS
2816 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2817 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2819 PUSHs(sv_2mortal(newSVpvs("")));
2820 PUSHs(sv_2mortal(newSVpvs("")));
2826 /* This macro is used by the stacked filetest operators :
2827 * if the previous filetest failed, short-circuit and pass its value.
2828 * Else, discard it from the stack and continue. --rgs
2830 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2831 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2832 else { (void)POPs; PUTBACK; } \
2839 /* Not const, because things tweak this below. Not bool, because there's
2840 no guarantee that OPp_FT_ACCESS is <= CHAR_MAX */
2841 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2842 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
2843 /* Giving some sort of initial value silences compilers. */
2845 int access_mode = R_OK;
2847 int access_mode = 0;
2850 /* access_mode is never used, but leaving use_access in makes the
2851 conditional compiling below much clearer. */
2854 int stat_mode = S_IRUSR;
2856 bool effective = FALSE;
2859 STACKED_FTEST_CHECK;
2861 switch (PL_op->op_type) {
2863 #if !(defined(HAS_ACCESS) && defined(R_OK))
2869 #if defined(HAS_ACCESS) && defined(W_OK)
2874 stat_mode = S_IWUSR;
2878 #if defined(HAS_ACCESS) && defined(X_OK)
2883 stat_mode = S_IXUSR;
2887 #ifdef PERL_EFF_ACCESS
2890 stat_mode = S_IWUSR;
2894 #ifndef PERL_EFF_ACCESS
2902 #ifdef PERL_EFF_ACCESS
2907 stat_mode = S_IXUSR;
2913 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2914 const char *const name = POPpx;
2916 # ifdef PERL_EFF_ACCESS
2917 result = PERL_EFF_ACCESS(name, access_mode);
2919 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
2925 result = access(name, access_mode);
2927 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
2942 if (cando(stat_mode, effective, &PL_statcache))
2951 const int op_type = PL_op->op_type;
2953 STACKED_FTEST_CHECK;
2958 if (op_type == OP_FTIS)
2961 /* You can't dTARGET inside OP_FTIS, because you'll get
2962 "panic: pad_sv po" - the op is not flagged to have a target. */
2966 #if Off_t_size > IVSIZE
2967 PUSHn(PL_statcache.st_size);
2969 PUSHi(PL_statcache.st_size);
2973 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
2976 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
2979 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
2992 /* I believe that all these three are likely to be defined on most every
2993 system these days. */
2995 if(PL_op->op_type == OP_FTSUID)
2999 if(PL_op->op_type == OP_FTSGID)
3003 if(PL_op->op_type == OP_FTSVTX)
3007 STACKED_FTEST_CHECK;
3012 switch (PL_op->op_type) {
3014 if (PL_statcache.st_uid == PL_uid)
3018 if (PL_statcache.st_uid == PL_euid)
3022 if (PL_statcache.st_size == 0)
3026 if (S_ISSOCK(PL_statcache.st_mode))
3030 if (S_ISCHR(PL_statcache.st_mode))
3034 if (S_ISBLK(PL_statcache.st_mode))
3038 if (S_ISREG(PL_statcache.st_mode))
3042 if (S_ISDIR(PL_statcache.st_mode))
3046 if (S_ISFIFO(PL_statcache.st_mode))
3051 if (PL_statcache.st_mode & S_ISUID)
3057 if (PL_statcache.st_mode & S_ISGID)
3063 if (PL_statcache.st_mode & S_ISVTX)
3074 I32 result = my_lstat();
3078 if (S_ISLNK(PL_statcache.st_mode))
3091 STACKED_FTEST_CHECK;
3093 if (PL_op->op_flags & OPf_REF)
3095 else if (isGV(TOPs))
3097 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3098 gv = (GV*)SvRV(POPs);
3100 gv = gv_fetchsv(tmpsv = POPs, 0, SVt_PVIO);
3102 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3103 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3104 else if (tmpsv && SvOK(tmpsv)) {
3105 const char *tmps = SvPV_nolen_const(tmpsv);
3113 if (PerlLIO_isatty(fd))
3118 #if defined(atarist) /* this will work with atariST. Configure will
3119 make guesses for other systems. */
3120 # define FILE_base(f) ((f)->_base)
3121 # define FILE_ptr(f) ((f)->_ptr)
3122 # define FILE_cnt(f) ((f)->_cnt)
3123 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3134 register STDCHAR *s;
3140 STACKED_FTEST_CHECK;
3142 if (PL_op->op_flags & OPf_REF)
3144 else if (isGV(TOPs))
3146 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3147 gv = (GV*)SvRV(POPs);
3153 if (gv == PL_defgv) {
3155 io = GvIO(PL_statgv);
3158 goto really_filename;
3163 PL_laststatval = -1;
3164 sv_setpvn(PL_statname, "", 0);
3165 io = GvIO(PL_statgv);
3167 if (io && IoIFP(io)) {
3168 if (! PerlIO_has_base(IoIFP(io)))
3169 DIE(aTHX_ "-T and -B not implemented on filehandles");
3170 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3171 if (PL_laststatval < 0)
3173 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3174 if (PL_op->op_type == OP_FTTEXT)
3179 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3180 i = PerlIO_getc(IoIFP(io));
3182 (void)PerlIO_ungetc(IoIFP(io),i);
3184 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3186 len = PerlIO_get_bufsiz(IoIFP(io));
3187 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3188 /* sfio can have large buffers - limit to 512 */
3193 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3195 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3197 SETERRNO(EBADF,RMS_IFI);
3205 PL_laststype = OP_STAT;
3206 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3207 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3208 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3210 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3213 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3214 if (PL_laststatval < 0) {
3215 (void)PerlIO_close(fp);
3218 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL);
3219 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3220 (void)PerlIO_close(fp);
3222 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3223 RETPUSHNO; /* special case NFS directories */
3224 RETPUSHYES; /* null file is anything */
3229 /* now scan s to look for textiness */
3230 /* XXX ASCII dependent code */
3232 #if defined(DOSISH) || defined(USEMYBINMODE)
3233 /* ignore trailing ^Z on short files */
3234 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3238 for (i = 0; i < len; i++, s++) {
3239 if (!*s) { /* null never allowed in text */
3244 else if (!(isPRINT(*s) || isSPACE(*s)))
3247 else if (*s & 128) {
3249 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3252 /* utf8 characters don't count as odd */
3253 if (UTF8_IS_START(*s)) {
3254 int ulen = UTF8SKIP(s);
3255 if (ulen < len - i) {
3257 for (j = 1; j < ulen; j++) {
3258 if (!UTF8_IS_CONTINUATION(s[j]))
3261 --ulen; /* loop does extra increment */
3271 *s != '\n' && *s != '\r' && *s != '\b' &&
3272 *s != '\t' && *s != '\f' && *s != 27)
3277 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3288 const char *tmps = NULL;
3292 SV * const sv = POPs;
3293 if (PL_op->op_flags & OPf_SPECIAL) {
3294 gv = gv_fetchsv(sv, 0, SVt_PVIO);
3296 else if (SvTYPE(sv) == SVt_PVGV) {
3299 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3303 tmps = SvPVx_nolen_const(sv);
3307 if( !gv && (!tmps || !*tmps) ) {
3308 HV * const table = GvHVn(PL_envgv);
3311 if ( (svp = hv_fetchs(table, "HOME", FALSE))
3312 || (svp = hv_fetchs(table, "LOGDIR", FALSE))
3314 || (svp = hv_fetchs(table, "SYS$LOGIN", FALSE))
3319 deprecate("chdir('') or chdir(undef) as chdir()");
3320 tmps = SvPV_nolen_const(*svp);
3324 TAINT_PROPER("chdir");
3329 TAINT_PROPER("chdir");
3332 IO* const io = GvIO(gv);
3335 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3337 else if (IoDIRP(io)) {
3339 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3341 DIE(aTHX_ PL_no_func, "dirfd");
3345 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
3346 report_evil_fh(gv, io, PL_op->op_type);
3347 SETERRNO(EBADF, RMS_IFI);
3352 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
3353 report_evil_fh(gv, io, PL_op->op_type);
3354 SETERRNO(EBADF,RMS_IFI);
3358 DIE(aTHX_ PL_no_func, "fchdir");
3362 PUSHi( PerlDir_chdir(tmps) >= 0 );
3364 /* Clear the DEFAULT element of ENV so we'll get the new value
3366 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3373 dVAR; dSP; dMARK; dTARGET;
3374 const I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3385 char * const tmps = POPpx;
3386 TAINT_PROPER("chroot");
3387 PUSHi( chroot(tmps) >= 0 );
3390 DIE(aTHX_ PL_no_func, "chroot");
3398 const char * const tmps2 = POPpconstx;
3399 const char * const tmps = SvPV_nolen_const(TOPs);
3400 TAINT_PROPER("rename");
3402 anum = PerlLIO_rename(tmps, tmps2);
3404 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3405 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3408 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3409 (void)UNLINK(tmps2);
3410 if (!(anum = link(tmps, tmps2)))
3411 anum = UNLINK(tmps);
3419 #if defined(HAS_LINK) || defined(HAS_SYMLINK)
3423 const int op_type = PL_op->op_type;
3427 if (op_type == OP_LINK)
3428 DIE(aTHX_ PL_no_func, "link");
3430 # ifndef HAS_SYMLINK
3431 if (op_type == OP_SYMLINK)
3432 DIE(aTHX_ PL_no_func, "symlink");
3436 const char * const tmps2 = POPpconstx;
3437 const char * const tmps = SvPV_nolen_const(TOPs);
3438 TAINT_PROPER(PL_op_desc[op_type]);
3440 # if defined(HAS_LINK)
3441 # if defined(HAS_SYMLINK)
3442 /* Both present - need to choose which. */
3443 (op_type == OP_LINK) ?
3444 PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2);
3446 /* Only have link, so calls to pp_symlink will have DIE()d above. */
3447 PerlLIO_link(tmps, tmps2);
3450 # if defined(HAS_SYMLINK)
3451 /* Only have symlink, so calls to pp_link will have DIE()d above. */
3452 symlink(tmps, tmps2);
3457 SETi( result >= 0 );
3464 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
3475 char buf[MAXPATHLEN];
3478 #ifndef INCOMPLETE_TAINTS
3482 len = readlink(tmps, buf, sizeof(buf) - 1);
3490 RETSETUNDEF; /* just pretend it's a normal file */
3494 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3496 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3498 char * const save_filename = filename;
3504 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3505 strcpy(cmdline, cmd);
3506 strcat(cmdline, " ");
3507 for (s = cmdline + strlen(cmdline); *filename; ) {
3512 myfp = PerlProc_popen(cmdline, "r");
3516 SV * const tmpsv = sv_newmortal();
3517 /* Need to save/restore 'PL_rs' ?? */
3518 s = sv_gets(tmpsv, myfp, 0);
3519 (void)PerlProc_pclose(myfp);
3523 #ifdef HAS_SYS_ERRLIST
3528 /* you don't see this */
3529 const char * const errmsg =
3530 #ifdef HAS_SYS_ERRLIST
3538 if (instr(s, errmsg)) {
3545 #define EACCES EPERM
3547 if (instr(s, "cannot make"))
3548 SETERRNO(EEXIST,RMS_FEX);
3549 else if (instr(s, "existing file"))
3550 SETERRNO(EEXIST,RMS_FEX);
3551 else if (instr(s, "ile exists"))
3552 SETERRNO(EEXIST,RMS_FEX);
3553 else if (instr(s, "non-exist"))
3554 SETERRNO(ENOENT,RMS_FNF);
3555 else if (instr(s, "does not exist"))
3556 SETERRNO(ENOENT,RMS_FNF);
3557 else if (instr(s, "not empty"))
3558 SETERRNO(EBUSY,SS_DEVOFFLINE);
3559 else if (instr(s, "cannot access"))
3560 SETERRNO(EACCES,RMS_PRV);
3562 SETERRNO(EPERM,RMS_PRV);
3565 else { /* some mkdirs return no failure indication */
3566 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3567 if (PL_op->op_type == OP_RMDIR)
3572 SETERRNO(EACCES,RMS_PRV); /* a guess */
3581 /* This macro removes trailing slashes from a directory name.
3582 * Different operating and file systems take differently to
3583 * trailing slashes. According to POSIX 1003.1 1996 Edition
3584 * any number of trailing slashes should be allowed.
3585 * Thusly we snip them away so that even non-conforming
3586 * systems are happy.
3587 * We should probably do this "filtering" for all
3588 * the functions that expect (potentially) directory names:
3589 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3590 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3592 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3593 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3596 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3597 (tmps) = savepvn((tmps), (len)); \
3607 const int mode = (MAXARG > 1) ? POPi : 0777;
3609 TRIMSLASHES(tmps,len,copy);
3611 TAINT_PROPER("mkdir");
3613 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3617 SETi( dooneliner("mkdir", tmps) );
3618 oldumask = PerlLIO_umask(0);
3619 PerlLIO_umask(oldumask);
3620 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3635 TRIMSLASHES(tmps,len,copy);
3636 TAINT_PROPER("rmdir");
3638 SETi( PerlDir_rmdir(tmps) >= 0 );
3640 SETi( dooneliner("rmdir", tmps) );
3647 /* Directory calls. */
3651 #if defined(Direntry_t) && defined(HAS_READDIR)
3653 const char * const dirname = POPpconstx;
3654 GV * const gv = (GV*)POPs;
3655 register IO * const io = GvIOn(gv);
3661 PerlDir_close(IoDIRP(io));
3662 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3668 SETERRNO(EBADF,RMS_DIR);
3671 DIE(aTHX_ PL_no_dir_func, "opendir");
3677 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3678 DIE(aTHX_ PL_no_dir_func, "readdir");
3680 #if !defined(I_DIRENT) && !defined(VMS)
3681 Direntry_t *readdir (DIR *);
3687 const I32 gimme = GIMME;
3688 GV * const gv = (GV *)POPs;
3689 register const Direntry_t *dp;
3690 register IO * const io = GvIOn(gv);
3692 if (!io || !IoDIRP(io)) {
3693 if(ckWARN(WARN_IO)) {
3694 Perl_warner(aTHX_ packWARN(WARN_IO),
3695 "readdir() attempted on invalid dirhandle %s", GvENAME(gv));
3701 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3705 sv = newSVpvn(dp->d_name, dp->d_namlen);
3707 sv = newSVpv(dp->d_name, 0);
3709 #ifndef INCOMPLETE_TAINTS
3710 if (!(IoFLAGS(io) & IOf_UNTAINT))
3713 XPUSHs(sv_2mortal(sv));
3715 while (gimme == G_ARRAY);
3717 if (!dp && gimme != G_ARRAY)
3724 SETERRNO(EBADF,RMS_ISI);
3725 if (GIMME == G_ARRAY)
3734 #if defined(HAS_TELLDIR) || defined(telldir)
3736 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3737 /* XXX netbsd still seemed to.
3738 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3739 --JHI 1999-Feb-02 */
3740 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3741 long telldir (DIR *);
3743 GV * const gv = (GV*)POPs;
3744 register IO * const io = GvIOn(gv);
3746 if (!io || !IoDIRP(io)) {
3747 if(ckWARN(WARN_IO)) {
3748 Perl_warner(aTHX_ packWARN(WARN_IO),
3749 "telldir() attempted on invalid dirhandle %s", GvENAME(gv));
3754 PUSHi( PerlDir_tell(IoDIRP(io)) );
3758 SETERRNO(EBADF,RMS_ISI);
3761 DIE(aTHX_ PL_no_dir_func, "telldir");
3767 #if defined(HAS_SEEKDIR) || defined(seekdir)
3769 const long along = POPl;
3770 GV * const gv = (GV*)POPs;
3771 register IO * const io = GvIOn(gv);
3773 if (!io || !IoDIRP(io)) {
3774 if(ckWARN(WARN_IO)) {
3775 Perl_warner(aTHX_ packWARN(WARN_IO),
3776 "seekdir() attempted on invalid dirhandle %s", GvENAME(gv));
3780 (void)PerlDir_seek(IoDIRP(io), along);
3785 SETERRNO(EBADF,RMS_ISI);
3788 DIE(aTHX_ PL_no_dir_func, "seekdir");
3794 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3796 GV * const gv = (GV*)POPs;
3797 register IO * const io = GvIOn(gv);
3799 if (!io || !IoDIRP(io)) {
3800 if(ckWARN(WARN_IO)) {
3801 Perl_warner(aTHX_ packWARN(WARN_IO),
3802 "rewinddir() attempted on invalid dirhandle %s", GvENAME(gv));
3806 (void)PerlDir_rewind(IoDIRP(io));
3810 SETERRNO(EBADF,RMS_ISI);
3813 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3819 #if defined(Direntry_t) && defined(HAS_READDIR)
3821 GV * const gv = (GV*)POPs;
3822 register IO * const io = GvIOn(gv);
3824 if (!io || !IoDIRP(io)) {
3825 if(ckWARN(WARN_IO)) {
3826 Perl_warner(aTHX_ packWARN(WARN_IO),
3827 "closedir() attempted on invalid dirhandle %s", GvENAME(gv));
3831 #ifdef VOID_CLOSEDIR
3832 PerlDir_close(IoDIRP(io));
3834 if (PerlDir_close(IoDIRP(io)) < 0) {
3835 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3844 SETERRNO(EBADF,RMS_IFI);
3847 DIE(aTHX_ PL_no_dir_func, "closedir");
3851 /* Process control. */
3860 PERL_FLUSHALL_FOR_CHILD;
3861 childpid = PerlProc_fork();
3865 GV * const tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV);
3867 SvREADONLY_off(GvSV(tmpgv));
3868 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3869 SvREADONLY_on(GvSV(tmpgv));
3871 #ifdef THREADS_HAVE_PIDS
3872 PL_ppid = (IV)getppid();
3874 #ifdef PERL_USES_PL_PIDSTATUS
3875 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3881 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3886 PERL_FLUSHALL_FOR_CHILD;
3887 childpid = PerlProc_fork();
3893 DIE(aTHX_ PL_no_func, "fork");
3900 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3905 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
3906 childpid = wait4pid(-1, &argflags, 0);
3908 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
3913 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3914 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3915 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
3917 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
3922 DIE(aTHX_ PL_no_func, "wait");
3928 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3930 const int optype = POPi;
3931 const Pid_t pid = TOPi;
3935 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
3936 result = wait4pid(pid, &argflags, optype);
3938 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
3943 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3944 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3945 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
3947 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
3952 DIE(aTHX_ PL_no_func, "waitpid");
3958 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
3964 while (++MARK <= SP) {
3965 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
3970 TAINT_PROPER("system");
3972 PERL_FLUSHALL_FOR_CHILD;
3973 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
3979 if (PerlProc_pipe(pp) >= 0)
3981 while ((childpid = PerlProc_fork()) == -1) {
3982 if (errno != EAGAIN) {
3987 PerlLIO_close(pp[0]);
3988 PerlLIO_close(pp[1]);
3995 Sigsave_t ihand,qhand; /* place to save signals during system() */
3999 PerlLIO_close(pp[1]);
4001 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4002 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
4005 result = wait4pid(childpid, &status, 0);
4006 } while (result == -1 && errno == EINTR);
4008 (void)rsignal_restore(SIGINT, &ihand);
4009 (void)rsignal_restore(SIGQUIT, &qhand);
4011 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
4012 do_execfree(); /* free any memory child malloced on fork */
4019 while (n < sizeof(int)) {
4020 n1 = PerlLIO_read(pp[0],
4021 (void*)(((char*)&errkid)+n),
4027 PerlLIO_close(pp[0]);
4028 if (n) { /* Error */
4029 if (n != sizeof(int))
4030 DIE(aTHX_ "panic: kid popen errno read");
4031 errno = errkid; /* Propagate errno from kid */
4032 STATUS_NATIVE_CHILD_SET(-1);
4035 XPUSHi(STATUS_CURRENT);
4039 PerlLIO_close(pp[0]);
4040 #if defined(HAS_FCNTL) && defined(F_SETFD)
4041 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4044 if (PL_op->op_flags & OPf_STACKED) {
4045 SV * const really = *++MARK;
4046 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4048 else if (SP - MARK != 1)
4049 value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes);
4051 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4055 #else /* ! FORK or VMS or OS/2 */
4058 if (PL_op->op_flags & OPf_STACKED) {
4059 SV * const really = *++MARK;
4060 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4061 value = (I32)do_aspawn(really, MARK, SP);
4063 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4066 else if (SP - MARK != 1) {
4067 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4068 value = (I32)do_aspawn(NULL, MARK, SP);
4070 value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP);
4074 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4076 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4078 STATUS_NATIVE_CHILD_SET(value);
4081 XPUSHi(result ? value : STATUS_CURRENT);
4082 #endif /* !FORK or VMS */
4088 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
4093 while (++MARK <= SP) {
4094 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4099 TAINT_PROPER("exec");
4101 PERL_FLUSHALL_FOR_CHILD;
4102 if (PL_op->op_flags & OPf_STACKED) {
4103 SV * const really = *++MARK;
4104 value = (I32)do_aexec(really, MARK, SP);
4106 else if (SP - MARK != 1)
4108 value = (I32)vms_do_aexec(NULL, MARK, SP);
4112 (void ) do_aspawn(NULL, MARK, SP);
4116 value = (I32)do_aexec(NULL, MARK, SP);
4121 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4124 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4127 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4141 # ifdef THREADS_HAVE_PIDS
4142 if (PL_ppid != 1 && getppid() == 1)
4143 /* maybe the parent process has died. Refresh ppid cache */
4147 XPUSHi( getppid() );
4151 DIE(aTHX_ PL_no_func, "getppid");
4160 const Pid_t pid = (MAXARG < 1) ? 0 : SvIVx(POPs);
4163 pgrp = (I32)BSD_GETPGRP(pid);
4165 if (pid != 0 && pid != PerlProc_getpid())
4166 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4172 DIE(aTHX_ PL_no_func, "getpgrp()");
4191 TAINT_PROPER("setpgrp");
4193 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4195 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4196 || (pid != 0 && pid != PerlProc_getpid()))
4198 DIE(aTHX_ "setpgrp can't take arguments");
4200 SETi( setpgrp() >= 0 );
4201 #endif /* USE_BSDPGRP */
4204 DIE(aTHX_ PL_no_func, "setpgrp()");
4210 #ifdef HAS_GETPRIORITY
4212 const int who = POPi;
4213 const int which = TOPi;
4214 SETi( getpriority(which, who) );
4217 DIE(aTHX_ PL_no_func, "getpriority()");
4223 #ifdef HAS_SETPRIORITY
4225 const int niceval = POPi;
4226 const int who = POPi;
4227 const int which = TOPi;
4228 TAINT_PROPER("setpriority");
4229 SETi( setpriority(which, who, niceval) >= 0 );
4232 DIE(aTHX_ PL_no_func, "setpriority()");
4242 XPUSHn( time(NULL) );
4244 XPUSHi( time(NULL) );
4256 (void)PerlProc_times(&PL_timesbuf);
4258 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4259 /* struct tms, though same data */
4263 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4264 if (GIMME == G_ARRAY) {
4265 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4266 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4267 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4273 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4275 if (GIMME == G_ARRAY) {
4276 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4277 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4278 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4282 DIE(aTHX_ "times not implemented");
4284 #endif /* HAS_TIMES */
4287 #ifdef LOCALTIME_EDGECASE_BROKEN
4288 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4293 /* No workarounds in the valid range */
4294 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4295 return (localtime (tp));
4297 /* This edge case is to workaround the undefined behaviour, where the
4298 * TIMEZONE makes the time go beyond the defined range.
4299 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4300 * If there is a negative offset in TZ, like MET-1METDST, some broken
4301 * implementations of localtime () (like AIX 5.2) barf with bogus
4303 * 0x7fffffff gmtime 2038-01-19 03:14:07
4304 * 0x7fffffff localtime 1901-12-13 21:45:51
4305 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4306 * 0x3c19137f gmtime 2001-12-13 20:45:51
4307 * 0x3c19137f localtime 2001-12-13 21:45:51
4308 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4309 * Given that legal timezones are typically between GMT-12 and GMT+12
4310 * we turn back the clock 23 hours before calling the localtime
4311 * function, and add those to the return value. This will never cause
4312 * day wrapping problems, since the edge case is Tue Jan *19*
4314 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4317 if (P->tm_hour >= 24) {
4319 P->tm_mday++; /* 18 -> 19 */
4320 P->tm_wday++; /* Mon -> Tue */
4321 P->tm_yday++; /* 18 -> 19 */
4324 } /* S_my_localtime */
4332 const struct tm *tmbuf;
4333 static const char * const dayname[] =
4334 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4335 static const char * const monname[] =
4336 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4337 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4343 when = (Time_t)SvNVx(POPs);
4345 when = (Time_t)SvIVx(POPs);
4348 if (PL_op->op_type == OP_LOCALTIME)
4349 #ifdef LOCALTIME_EDGECASE_BROKEN
4350 tmbuf = S_my_localtime(aTHX_ &when);
4352 tmbuf = localtime(&when);
4355 tmbuf = gmtime(&when);
4357 if (GIMME != G_ARRAY) {
4363 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4364 dayname[tmbuf->tm_wday],
4365 monname[tmbuf->tm_mon],
4370 tmbuf->tm_year + 1900);
4371 PUSHs(sv_2mortal(tsv));
4376 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4377 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4378 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4379 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4380 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4381 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4382 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4383 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4384 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4395 anum = alarm((unsigned int)anum);
4402 DIE(aTHX_ PL_no_func, "alarm");
4413 (void)time(&lasttime);
4418 PerlProc_sleep((unsigned int)duration);
4421 XPUSHi(when - lasttime);
4425 /* Shared memory. */
4426 /* Merged with some message passing. */
4430 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4431 dVAR; dSP; dMARK; dTARGET;
4432 const int op_type = PL_op->op_type;
4437 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4440 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4443 value = (I32)(do_semop(MARK, SP) >= 0);
4446 value = (I32)(do_shmio(op_type, MARK, SP) >= 0);
4462 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4463 dVAR; dSP; dMARK; dTARGET;
4464 const int anum = do_ipcget(PL_op->op_type, MARK, SP);
4471 DIE(aTHX_ "System V IPC is not implemented on this machine");
4477 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4478 dVAR; dSP; dMARK; dTARGET;
4479 const int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4487 PUSHp(zero_but_true, ZBTLEN);
4495 /* I can't const this further without getting warnings about the types of
4496 various arrays passed in from structures. */
4498 S_space_join_names_mortal(pTHX_ char *const *array)
4502 if (array && *array) {
4503 target = sv_2mortal(newSVpvs(""));
4505 sv_catpv(target, *array);
4508 sv_catpvs(target, " ");
4511 target = sv_mortalcopy(&PL_sv_no);
4516 /* Get system info. */
4520 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4522 I32 which = PL_op->op_type;
4523 register char **elem;
4525 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4526 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4527 struct hostent *gethostbyname(Netdb_name_t);
4528 struct hostent *gethostent(void);
4530 struct hostent *hent;
4534 if (which == OP_GHBYNAME) {
4535 #ifdef HAS_GETHOSTBYNAME
4536 const char* const name = POPpbytex;
4537 hent = PerlSock_gethostbyname(name);
4539 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4542 else if (which == OP_GHBYADDR) {
4543 #ifdef HAS_GETHOSTBYADDR
4544 const int addrtype = POPi;
4545 SV * const addrsv = POPs;
4547 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4549 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4551 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4555 #ifdef HAS_GETHOSTENT
4556 hent = PerlSock_gethostent();
4558 DIE(aTHX_ PL_no_sock_func, "gethostent");
4561 #ifdef HOST_NOT_FOUND
4563 #ifdef USE_REENTRANT_API
4564 # ifdef USE_GETHOSTENT_ERRNO
4565 h_errno = PL_reentrant_buffer->_gethostent_errno;
4568 STATUS_UNIX_SET(h_errno);
4572 if (GIMME != G_ARRAY) {
4573 PUSHs(sv = sv_newmortal());
4575 if (which == OP_GHBYNAME) {
4577 sv_setpvn(sv, hent->h_addr, hent->h_length);
4580 sv_setpv(sv, (char*)hent->h_name);
4586 PUSHs(sv_2mortal(newSVpv((char*)hent->h_name, 0)));
4587 PUSHs(S_space_join_names_mortal(aTHX_ hent->h_aliases));
4588 PUSHs(sv_2mortal(newSViv((IV)hent->h_addrtype)));
4589 len = hent->h_length;
4590 PUSHs(sv_2mortal(newSViv((IV)len)));
4592 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4593 XPUSHs(sv_2mortal(newSVpvn(*elem, len)));
4597 PUSHs(newSVpvn(hent->h_addr, len));
4599 PUSHs(sv_mortalcopy(&PL_sv_no));
4604 DIE(aTHX_ PL_no_sock_func, "gethostent");
4610 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4612 I32 which = PL_op->op_type;
4614 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4615 struct netent *getnetbyaddr(Netdb_net_t, int);
4616 struct netent *getnetbyname(Netdb_name_t);
4617 struct netent *getnetent(void);
4619 struct netent *nent;
4621 if (which == OP_GNBYNAME){
4622 #ifdef HAS_GETNETBYNAME
4623 const char * const name = POPpbytex;
4624 nent = PerlSock_getnetbyname(name);
4626 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4629 else if (which == OP_GNBYADDR) {
4630 #ifdef HAS_GETNETBYADDR
4631 const int addrtype = POPi;
4632 const Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4633 nent = PerlSock_getnetbyaddr(addr, addrtype);
4635 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4639 #ifdef HAS_GETNETENT
4640 nent = PerlSock_getnetent();
4642 DIE(aTHX_ PL_no_sock_func, "getnetent");
4645 #ifdef HOST_NOT_FOUND
4647 #ifdef USE_REENTRANT_API
4648 # ifdef USE_GETNETENT_ERRNO
4649 h_errno = PL_reentrant_buffer->_getnetent_errno;
4652 STATUS_UNIX_SET(h_errno);
4657 if (GIMME != G_ARRAY) {
4658 PUSHs(sv = sv_newmortal());
4660 if (which == OP_GNBYNAME)
4661 sv_setiv(sv, (IV)nent->n_net);
4663 sv_setpv(sv, nent->n_name);
4669 PUSHs(sv_2mortal(newSVpv(nent->n_name, 0)));
4670 PUSHs(S_space_join_names_mortal(aTHX_ nent->n_aliases));
4671 PUSHs(sv_2mortal(newSViv((IV)nent->n_addrtype)));
4672 PUSHs(sv_2mortal(newSViv((IV)nent->n_net)));
4677 DIE(aTHX_ PL_no_sock_func, "getnetent");
4683 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4685 I32 which = PL_op->op_type;
4687 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4688 struct protoent *getprotobyname(Netdb_name_t);
4689 struct protoent *getprotobynumber(int);
4690 struct protoent *getprotoent(void);
4692 struct protoent *pent;
4694 if (which == OP_GPBYNAME) {
4695 #ifdef HAS_GETPROTOBYNAME
4696 const char* const name = POPpbytex;
4697 pent = PerlSock_getprotobyname(name);
4699 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4702 else if (which == OP_GPBYNUMBER) {
4703 #ifdef HAS_GETPROTOBYNUMBER
4704 const int number = POPi;
4705 pent = PerlSock_getprotobynumber(number);
4707 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4711 #ifdef HAS_GETPROTOENT
4712 pent = PerlSock_getprotoent();
4714 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4718 if (GIMME != G_ARRAY) {
4719 PUSHs(sv = sv_newmortal());
4721 if (which == OP_GPBYNAME)
4722 sv_setiv(sv, (IV)pent->p_proto);
4724 sv_setpv(sv, pent->p_name);
4730 PUSHs(sv_2mortal(newSVpv(pent->p_name, 0)));
4731 PUSHs(S_space_join_names_mortal(aTHX_ pent->p_aliases));
4732 PUSHs(sv_2mortal(newSViv((IV)pent->p_proto)));
4737 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4743 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4745 I32 which = PL_op->op_type;
4747 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4748 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4749 struct servent *getservbyport(int, Netdb_name_t);
4750 struct servent *getservent(void);
4752 struct servent *sent;
4754 if (which == OP_GSBYNAME) {
4755 #ifdef HAS_GETSERVBYNAME
4756 const char * const proto = POPpbytex;
4757 const char * const name = POPpbytex;
4758 sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto);
4760 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4763 else if (which == OP_GSBYPORT) {
4764 #ifdef HAS_GETSERVBYPORT
4765 const char * const proto = POPpbytex;
4766 unsigned short port = (unsigned short)POPu;
4768 port = PerlSock_htons(port);
4770 sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto);
4772 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4776 #ifdef HAS_GETSERVENT
4777 sent = PerlSock_getservent();
4779 DIE(aTHX_ PL_no_sock_func, "getservent");
4783 if (GIMME != G_ARRAY) {
4784 PUSHs(sv = sv_newmortal());
4786 if (which == OP_GSBYNAME) {
4788 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4790 sv_setiv(sv, (IV)(sent->s_port));
4794 sv_setpv(sv, sent->s_name);
4800 PUSHs(sv_2mortal(newSVpv(sent->s_name, 0)));
4801 PUSHs(S_space_join_names_mortal(aTHX_ sent->s_aliases));
4803 PUSHs(sv_2mortal(newSViv((IV)PerlSock_ntohs(sent->s_port))));
4805 PUSHs(sv_2mortal(newSViv((IV)(sent->s_port))));
4807 PUSHs(sv_2mortal(newSVpv(sent->s_proto, 0)));
4812 DIE(aTHX_ PL_no_sock_func, "getservent");
4818 #ifdef HAS_SETHOSTENT
4820 PerlSock_sethostent(TOPi);
4823 DIE(aTHX_ PL_no_sock_func, "sethostent");
4829 #ifdef HAS_SETNETENT
4831 PerlSock_setnetent(TOPi);
4834 DIE(aTHX_ PL_no_sock_func, "setnetent");
4840 #ifdef HAS_SETPROTOENT
4842 PerlSock_setprotoent(TOPi);
4845 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4851 #ifdef HAS_SETSERVENT
4853 PerlSock_setservent(TOPi);
4856 DIE(aTHX_ PL_no_sock_func, "setservent");
4862 #ifdef HAS_ENDHOSTENT
4864 PerlSock_endhostent();
4868 DIE(aTHX_ PL_no_sock_func, "endhostent");
4874 #ifdef HAS_ENDNETENT
4876 PerlSock_endnetent();
4880 DIE(aTHX_ PL_no_sock_func, "endnetent");
4886 #ifdef HAS_ENDPROTOENT
4888 PerlSock_endprotoent();
4892 DIE(aTHX_ PL_no_sock_func, "endprotoent");
4898 #ifdef HAS_ENDSERVENT
4900 PerlSock_endservent();
4904 DIE(aTHX_ PL_no_sock_func, "endservent");
4912 I32 which = PL_op->op_type;
4914 struct passwd *pwent = NULL;
4916 * We currently support only the SysV getsp* shadow password interface.
4917 * The interface is declared in <shadow.h> and often one needs to link
4918 * with -lsecurity or some such.
4919 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
4922 * AIX getpwnam() is clever enough to return the encrypted password
4923 * only if the caller (euid?) is root.
4925 * There are at least three other shadow password APIs. Many platforms
4926 * seem to contain more than one interface for accessing the shadow
4927 * password databases, possibly for compatibility reasons.
4928 * The getsp*() is by far he simplest one, the other two interfaces
4929 * are much more complicated, but also very similar to each other.
4934 * struct pr_passwd *getprpw*();
4935 * The password is in
4936 * char getprpw*(...).ufld.fd_encrypt[]
4937 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
4942 * struct es_passwd *getespw*();
4943 * The password is in
4944 * char *(getespw*(...).ufld.fd_encrypt)
4945 * Mention HAS_GETESPWNAM here so that Configure probes for it.
4948 * struct userpw *getuserpw();
4949 * The password is in
4950 * char *(getuserpw(...)).spw_upw_passwd
4951 * (but the de facto standard getpwnam() should work okay)
4953 * Mention I_PROT here so that Configure probes for it.
4955 * In HP-UX for getprpw*() the manual page claims that one should include
4956 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
4957 * if one includes <shadow.h> as that includes <hpsecurity.h>,
4958 * and pp_sys.c already includes <shadow.h> if there is such.
4960 * Note that <sys/security.h> is already probed for, but currently
4961 * it is only included in special cases.
4963 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
4964 * be preferred interface, even though also the getprpw*() interface
4965 * is available) one needs to link with -lsecurity -ldb -laud -lm.
4966 * One also needs to call set_auth_parameters() in main() before
4967 * doing anything else, whether one is using getespw*() or getprpw*().
4969 * Note that accessing the shadow databases can be magnitudes
4970 * slower than accessing the standard databases.
4975 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
4976 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
4977 * the pw_comment is left uninitialized. */
4978 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
4984 const char* const name = POPpbytex;
4985 pwent = getpwnam(name);
4991 pwent = getpwuid(uid);
4995 # ifdef HAS_GETPWENT
4997 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
4998 if (pwent) pwent = getpwnam(pwent->pw_name);
5001 DIE(aTHX_ PL_no_func, "getpwent");
5007 if (GIMME != G_ARRAY) {
5008 PUSHs(sv = sv_newmortal());
5010 if (which == OP_GPWNAM)
5011 # if Uid_t_sign <= 0
5012 sv_setiv(sv, (IV)pwent->pw_uid);
5014 sv_setuv(sv, (UV)pwent->pw_uid);
5017 sv_setpv(sv, pwent->pw_name);
5023 PUSHs(sv_2mortal(newSVpv(pwent->pw_name, 0)));
5025 PUSHs(sv = sv_2mortal(newSViv(0)));
5026 /* If we have getspnam(), we try to dig up the shadow
5027 * password. If we are underprivileged, the shadow
5028 * interface will set the errno to EACCES or similar,
5029 * and return a null pointer. If this happens, we will
5030 * use the dummy password (usually "*" or "x") from the
5031 * standard password database.
5033 * In theory we could skip the shadow call completely
5034 * if euid != 0 but in practice we cannot know which
5035 * security measures are guarding the shadow databases
5036 * on a random platform.
5038 * Resist the urge to use additional shadow interfaces.
5039 * Divert the urge to writing an extension instead.
5042 /* Some AIX setups falsely(?) detect some getspnam(), which
5043 * has a different API than the Solaris/IRIX one. */
5044 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5046 const int saverrno = errno;
5047 const struct spwd * const spwent = getspnam(pwent->pw_name);
5048 /* Save and restore errno so that
5049 * underprivileged attempts seem
5050 * to have never made the unsccessful
5051 * attempt to retrieve the shadow password. */
5053 if (spwent && spwent->sp_pwdp)
5054 sv_setpv(sv, spwent->sp_pwdp);
5058 if (!SvPOK(sv)) /* Use the standard password, then. */
5059 sv_setpv(sv, pwent->pw_passwd);
5062 # ifndef INCOMPLETE_TAINTS
5063 /* passwd is tainted because user himself can diddle with it.
5064 * admittedly not much and in a very limited way, but nevertheless. */
5068 # if Uid_t_sign <= 0
5069 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_uid)));
5071 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_uid)));
5074 # if Uid_t_sign <= 0
5075 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_gid)));
5077 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_gid)));
5079 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5080 * because of the poor interface of the Perl getpw*(),
5081 * not because there's some standard/convention saying so.
5082 * A better interface would have been to return a hash,
5083 * but we are accursed by our history, alas. --jhi. */
5085 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_change)));
5088 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_quota)));
5091 PUSHs(sv_2mortal(newSVpv(pwent->pw_age, 0)));
5093 /* I think that you can never get this compiled, but just in case. */
5094 PUSHs(sv_mortalcopy(&PL_sv_no));
5099 /* pw_class and pw_comment are mutually exclusive--.
5100 * see the above note for pw_change, pw_quota, and pw_age. */
5102 PUSHs(sv_2mortal(newSVpv(pwent->pw_class, 0)));
5105 PUSHs(sv_2mortal(newSVpv(pwent->pw_comment, 0)));
5107 /* I think that you can never get this compiled, but just in case. */
5108 PUSHs(sv_mortalcopy(&PL_sv_no));
5113 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0)));
5115 PUSHs(sv_mortalcopy(&PL_sv_no));
5117 # ifndef INCOMPLETE_TAINTS
5118 /* pw_gecos is tainted because user himself can diddle with it. */
5122 PUSHs(sv_2mortal(newSVpv(pwent->pw_dir, 0)));
5124 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0)));
5125 # ifndef INCOMPLETE_TAINTS
5126 /* pw_shell is tainted because user himself can diddle with it. */
5131 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_expire)));
5136 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5142 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5147 DIE(aTHX_ PL_no_func, "setpwent");
5153 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5158 DIE(aTHX_ PL_no_func, "endpwent");
5166 const I32 which = PL_op->op_type;
5167 const struct group *grent;
5169 if (which == OP_GGRNAM) {
5170 const char* const name = POPpbytex;
5171 grent = (const struct group *)getgrnam(name);
5173 else if (which == OP_GGRGID) {
5174 const Gid_t gid = POPi;
5175 grent = (const struct group *)getgrgid(gid);
5179 grent = (struct group *)getgrent();
5181 DIE(aTHX_ PL_no_func, "getgrent");
5185 if (GIMME != G_ARRAY) {
5186 SV * const sv = sv_newmortal();
5190 if (which == OP_GGRNAM)
5191 sv_setiv(sv, (IV)grent->gr_gid);
5193 sv_setpv(sv, grent->gr_name);
5199 PUSHs(sv_2mortal(newSVpv(grent->gr_name, 0)));
5202 PUSHs(sv_2mortal(newSVpv(grent->gr_passwd, 0)));
5204 PUSHs(sv_mortalcopy(&PL_sv_no));
5207 PUSHs(sv_2mortal(newSViv((IV)grent->gr_gid)));
5209 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5210 /* In UNICOS/mk (_CRAYMPP) the multithreading
5211 * versions (getgrnam_r, getgrgid_r)
5212 * seem to return an illegal pointer
5213 * as the group members list, gr_mem.
5214 * getgrent() doesn't even have a _r version
5215 * but the gr_mem is poisonous anyway.
5216 * So yes, you cannot get the list of group
5217 * members if building multithreaded in UNICOS/mk. */
5218 PUSHs(S_space_join_names_mortal(aTHX_ grent->gr_mem));
5224 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5230 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5235 DIE(aTHX_ PL_no_func, "setgrent");
5241 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5246 DIE(aTHX_ PL_no_func, "endgrent");
5256 if (!(tmps = PerlProc_getlogin()))
5258 PUSHp(tmps, strlen(tmps));
5261 DIE(aTHX_ PL_no_func, "getlogin");
5265 /* Miscellaneous. */
5270 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
5271 register I32 items = SP - MARK;
5272 unsigned long a[20];
5277 while (++MARK <= SP) {
5278 if (SvTAINTED(*MARK)) {
5284 TAINT_PROPER("syscall");
5287 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5288 * or where sizeof(long) != sizeof(char*). But such machines will
5289 * not likely have syscall implemented either, so who cares?
5291 while (++MARK <= SP) {
5292 if (SvNIOK(*MARK) || !i)
5293 a[i++] = SvIV(*MARK);
5294 else if (*MARK == &PL_sv_undef)
5297 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5303 DIE(aTHX_ "Too many args to syscall");
5305 DIE(aTHX_ "Too few args to syscall");
5307 retval = syscall(a[0]);
5310 retval = syscall(a[0],a[1]);
5313 retval = syscall(a[0],a[1],a[2]);
5316 retval = syscall(a[0],a[1],a[2],a[3]);
5319 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5322 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5325 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5328 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5332 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5335 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5338 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5342 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5346 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5350 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5351 a[10],a[11],a[12],a[13]);
5353 #endif /* atarist */
5359 DIE(aTHX_ PL_no_func, "syscall");
5363 #ifdef FCNTL_EMULATE_FLOCK
5365 /* XXX Emulate flock() with fcntl().
5366 What's really needed is a good file locking module.
5370 fcntl_emulate_flock(int fd, int operation)
5374 switch (operation & ~LOCK_NB) {
5376 flock.l_type = F_RDLCK;
5379 flock.l_type = F_WRLCK;
5382 flock.l_type = F_UNLCK;
5388 flock.l_whence = SEEK_SET;
5389 flock.l_start = flock.l_len = (Off_t)0;
5391 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5394 #endif /* FCNTL_EMULATE_FLOCK */
5396 #ifdef LOCKF_EMULATE_FLOCK
5398 /* XXX Emulate flock() with lockf(). This is just to increase
5399 portability of scripts. The calls are not completely
5400 interchangeable. What's really needed is a good file
5404 /* The lockf() constants might have been defined in <unistd.h>.
5405 Unfortunately, <unistd.h> causes troubles on some mixed
5406 (BSD/POSIX) systems, such as SunOS 4.1.3.
5408 Further, the lockf() constants aren't POSIX, so they might not be
5409 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5410 just stick in the SVID values and be done with it. Sigh.
5414 # define F_ULOCK 0 /* Unlock a previously locked region */
5417 # define F_LOCK 1 /* Lock a region for exclusive use */
5420 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5423 # define F_TEST 3 /* Test a region for other processes locks */
5427 lockf_emulate_flock(int fd, int operation)
5430 const int save_errno = errno;
5433 /* flock locks entire file so for lockf we need to do the same */
5434 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5435 if (pos > 0) /* is seekable and needs to be repositioned */
5436 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5437 pos = -1; /* seek failed, so don't seek back afterwards */
5440 switch (operation) {
5442 /* LOCK_SH - get a shared lock */
5444 /* LOCK_EX - get an exclusive lock */
5446 i = lockf (fd, F_LOCK, 0);
5449 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5450 case LOCK_SH|LOCK_NB:
5451 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5452 case LOCK_EX|LOCK_NB:
5453 i = lockf (fd, F_TLOCK, 0);
5455 if ((errno == EAGAIN) || (errno == EACCES))
5456 errno = EWOULDBLOCK;
5459 /* LOCK_UN - unlock (non-blocking is a no-op) */
5461 case LOCK_UN|LOCK_NB:
5462 i = lockf (fd, F_ULOCK, 0);
5465 /* Default - can't decipher operation */
5472 if (pos > 0) /* need to restore position of the handle */
5473 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5478 #endif /* LOCKF_EMULATE_FLOCK */
5482 * c-indentation-style: bsd
5484 * indent-tabs-mode: t
5487 * ex: set ts=8 sts=4 sw=4 noet: