3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 2005, 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_R_OK /* EFFective uid/gid ACCESS R_OK */
201 #undef PERL_EFF_ACCESS_W_OK
202 #undef PERL_EFF_ACCESS_X_OK
204 /* AIX 5.2 and below use mktime for localtime, and defines the edge case
205 * for time 0x7fffffff to be valid only in UTC. AIX 5.3 provides localtime64
206 * available in the 32bit environment, which could warrant Configure
207 * checks in the future.
210 #define LOCALTIME_EDGECASE_BROKEN
213 /* F_OK unused: if stat() cannot find it... */
215 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
216 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
217 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
218 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
219 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
222 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
223 # ifdef I_SYS_SECURITY
224 # include <sys/security.h>
228 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
229 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
230 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
233 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
234 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
235 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
239 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
241 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
242 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
243 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
246 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
247 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
248 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
251 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
253 Uid_t ruid = getuid();
254 Uid_t euid = geteuid();
255 Gid_t rgid = getgid();
256 Gid_t egid = getegid();
260 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
261 Perl_croak(aTHX_ "switching effective uid is not implemented");
264 if (setreuid(euid, ruid))
267 if (setresuid(euid, ruid, (Uid_t)-1))
270 Perl_croak(aTHX_ "entering effective uid failed");
273 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
274 Perl_croak(aTHX_ "switching effective gid is not implemented");
277 if (setregid(egid, rgid))
280 if (setresgid(egid, rgid, (Gid_t)-1))
283 Perl_croak(aTHX_ "entering effective gid failed");
286 res = access(path, mode);
289 if (setreuid(ruid, euid))
292 if (setresuid(ruid, euid, (Uid_t)-1))
295 Perl_croak(aTHX_ "leaving effective uid failed");
298 if (setregid(rgid, egid))
301 if (setresgid(rgid, egid, (Gid_t)-1))
304 Perl_croak(aTHX_ "leaving effective gid failed");
309 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
310 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
311 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
314 #if !defined(PERL_EFF_ACCESS_R_OK)
315 /* With it or without it: anyway you get a warning: either that
316 it is unused, or it is declared static and never defined.
319 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
323 Perl_croak(aTHX_ "switching effective uid is not implemented");
333 const char * const tmps = POPpconstx;
334 const I32 gimme = GIMME_V;
335 const char *mode = "r";
338 if (PL_op->op_private & OPpOPEN_IN_RAW)
340 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
342 fp = PerlProc_popen(tmps, mode);
344 const char *type = NULL;
345 if (PL_curcop->cop_io) {
346 type = SvPV_nolen_const(PL_curcop->cop_io);
349 PerlIO_apply_layers(aTHX_ fp,mode,type);
351 if (gimme == G_VOID) {
353 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
356 else if (gimme == G_SCALAR) {
359 PL_rs = &PL_sv_undef;
360 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
361 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
369 SV * const sv = NEWSV(56, 79);
370 if (sv_gets(sv, fp, 0) == Nullch) {
374 XPUSHs(sv_2mortal(sv));
375 if (SvLEN(sv) - SvCUR(sv) > 20) {
376 SvPV_shrink_to_cur(sv);
381 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
382 TAINT; /* "I believe that this is not gratuitous!" */
385 STATUS_NATIVE_CHILD_SET(-1);
386 if (gimme == G_SCALAR)
397 tryAMAGICunTARGET(iter, -1);
399 /* Note that we only ever get here if File::Glob fails to load
400 * without at the same time croaking, for some reason, or if
401 * perl was built with PERL_EXTERNAL_GLOB */
408 * The external globbing program may use things we can't control,
409 * so for security reasons we must assume the worst.
412 taint_proper(PL_no_security, "glob");
416 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
417 PL_last_in_gv = (GV*)*PL_stack_sp--;
419 SAVESPTR(PL_rs); /* This is not permanent, either. */
420 PL_rs = sv_2mortal(newSVpvn("\000", 1));
423 *SvPVX(PL_rs) = '\n';
427 result = do_readline();
434 PL_last_in_gv = cGVOP_gv;
435 return do_readline();
444 if (SP - MARK != 1) {
446 do_join(TARG, &PL_sv_no, MARK, SP);
453 tmps = SvPV_const(tmpsv, len);
454 if ((!tmps || !len) && PL_errgv) {
455 SV * const error = ERRSV;
456 SvUPGRADE(error, SVt_PV);
457 if (SvPOK(error) && SvCUR(error))
458 sv_catpv(error, "\t...caught");
460 tmps = SvPV_const(tmpsv, len);
463 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
465 Perl_warn(aTHX_ "%"SVf, tmpsv);
477 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
479 if (SP - MARK != 1) {
481 do_join(TARG, &PL_sv_no, MARK, SP);
483 tmps = SvPV_const(tmpsv, len);
489 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
493 SvUPGRADE(error, SVt_PV);
494 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
496 SvSetSV(error,tmpsv);
497 else if (sv_isobject(error)) {
498 HV *stash = SvSTASH(SvRV(error));
499 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
501 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
502 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
509 call_sv((SV*)GvCV(gv),
510 G_SCALAR|G_EVAL|G_KEEPERR);
511 sv_setsv(error,*PL_stack_sp--);
517 if (SvPOK(error) && SvCUR(error))
518 sv_catpv(error, "\t...propagated");
521 tmps = SvPV_const(tmpsv, len);
527 tmpsv = sv_2mortal(newSVpvn("Died", 4));
529 DIE(aTHX_ "%"SVf, tmpsv);
549 DIE(aTHX_ PL_no_usym, "filehandle");
550 if ((io = GvIOp(gv)))
551 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
553 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
554 /* Method's args are same as ours ... */
555 /* ... except handle is replaced by the object */
556 *MARK-- = SvTIED_obj((SV*)io, mg);
560 call_method("OPEN", G_SCALAR);
573 tmps = SvPV_const(sv, len);
574 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
577 PUSHi( (I32)PL_forkprocess );
578 else if (PL_forkprocess == 0) /* we are a new child */
597 if (gv && (io = GvIO(gv))
598 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
601 XPUSHs(SvTIED_obj((SV*)io, mg));
604 call_method("CLOSE", G_SCALAR);
610 PUSHs(boolSV(do_close(gv, TRUE)));
630 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
631 DIE(aTHX_ PL_no_usym, "filehandle");
636 do_close(rgv, FALSE);
638 do_close(wgv, FALSE);
640 if (PerlProc_pipe(fd) < 0)
643 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
644 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
645 IoOFP(rstio) = IoIFP(rstio);
646 IoIFP(wstio) = IoOFP(wstio);
647 IoTYPE(rstio) = IoTYPE_RDONLY;
648 IoTYPE(wstio) = IoTYPE_WRONLY;
650 if (!IoIFP(rstio) || !IoOFP(wstio)) {
651 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
652 else PerlLIO_close(fd[0]);
653 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
654 else PerlLIO_close(fd[1]);
657 #if defined(HAS_FCNTL) && defined(F_SETFD)
658 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
659 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
666 DIE(aTHX_ PL_no_func, "pipe");
682 if (gv && (io = GvIO(gv))
683 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
686 XPUSHs(SvTIED_obj((SV*)io, mg));
689 call_method("FILENO", G_SCALAR);
695 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
696 /* Can't do this because people seem to do things like
697 defined(fileno($foo)) to check whether $foo is a valid fh.
698 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
699 report_evil_fh(gv, io, PL_op->op_type);
704 PUSHi(PerlIO_fileno(fp));
716 anum = PerlLIO_umask(0);
717 (void)PerlLIO_umask(anum);
720 anum = PerlLIO_umask(POPi);
721 TAINT_PROPER("umask");
724 /* Only DIE if trying to restrict permissions on "user" (self).
725 * Otherwise it's harmless and more useful to just return undef
726 * since 'group' and 'other' concepts probably don't exist here. */
727 if (MAXARG >= 1 && (POPi & 0700))
728 DIE(aTHX_ "umask not implemented");
729 XPUSHs(&PL_sv_undef);
751 if (gv && (io = GvIO(gv))
752 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
755 XPUSHs(SvTIED_obj((SV*)io, mg));
760 call_method("BINMODE", G_SCALAR);
767 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
768 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
769 report_evil_fh(gv, io, PL_op->op_type);
770 SETERRNO(EBADF,RMS_IFI);
775 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
776 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
777 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
778 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
779 mode_from_discipline(discp),
780 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
801 const I32 markoff = MARK - PL_stack_base;
802 const char *methname;
803 int how = PERL_MAGIC_tied;
807 switch(SvTYPE(varsv)) {
809 methname = "TIEHASH";
810 HvEITER_set((HV *)varsv, 0);
813 methname = "TIEARRAY";
816 #ifdef GV_UNIQUE_CHECK
817 if (GvUNIQUE((GV*)varsv)) {
818 Perl_croak(aTHX_ "Attempt to tie unique GV");
821 methname = "TIEHANDLE";
822 how = PERL_MAGIC_tiedscalar;
823 /* For tied filehandles, we apply tiedscalar magic to the IO
824 slot of the GP rather than the GV itself. AMS 20010812 */
826 GvIOp(varsv) = newIO();
827 varsv = (SV *)GvIOp(varsv);
830 methname = "TIESCALAR";
831 how = PERL_MAGIC_tiedscalar;
835 if (sv_isobject(*MARK)) {
837 PUSHSTACKi(PERLSI_MAGIC);
839 EXTEND(SP,(I32)items);
843 call_method(methname, G_SCALAR);
846 /* Not clear why we don't call call_method here too.
847 * perhaps to get different error message ?
849 stash = gv_stashsv(*MARK, FALSE);
850 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
851 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
855 PUSHSTACKi(PERLSI_MAGIC);
857 EXTEND(SP,(I32)items);
861 call_sv((SV*)GvCV(gv), G_SCALAR);
867 if (sv_isobject(sv)) {
868 sv_unmagic(varsv, how);
869 /* Croak if a self-tie on an aggregate is attempted. */
870 if (varsv == SvRV(sv) &&
871 (SvTYPE(varsv) == SVt_PVAV ||
872 SvTYPE(varsv) == SVt_PVHV))
874 "Self-ties of arrays and hashes are not supported");
875 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
878 SP = PL_stack_base + markoff;
888 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
889 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
891 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
894 if ((mg = SvTIED_mg(sv, how))) {
895 SV * const obj = SvRV(SvTIED_obj(sv, mg));
899 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
900 isGV(gv) && (cv = GvCV(gv))) {
902 XPUSHs(SvTIED_obj((SV*)gv, mg));
903 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
906 call_sv((SV *)cv, G_VOID);
910 else if (mg && SvREFCNT(obj) > 1 && ckWARN(WARN_UNTIE)) {
911 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
912 "untie attempted while %"UVuf" inner references still exist",
913 (UV)SvREFCNT(obj) - 1 ) ;
917 sv_unmagic(sv, how) ;
926 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
927 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
929 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
932 if ((mg = SvTIED_mg(sv, how))) {
933 SV *osv = SvTIED_obj(sv, mg);
934 if (osv == mg->mg_obj)
935 osv = sv_mortalcopy(osv);
950 HV * const hv = (HV*)POPs;
952 sv = sv_mortalcopy(&PL_sv_no);
953 sv_setpv(sv, "AnyDBM_File");
954 stash = gv_stashsv(sv, FALSE);
955 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
957 require_pv("AnyDBM_File.pm");
959 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
960 DIE(aTHX_ "No dbm on this machine");
970 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
972 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
975 call_sv((SV*)GvCV(gv), G_SCALAR);
978 if (!sv_isobject(TOPs)) {
983 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
986 call_sv((SV*)GvCV(gv), G_SCALAR);
990 if (sv_isobject(TOPs)) {
991 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
992 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1014 struct timeval timebuf;
1015 struct timeval *tbuf = &timebuf;
1018 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1023 # if BYTEORDER & 0xf0000
1024 # define ORDERBYTE (0x88888888 - BYTEORDER)
1026 # define ORDERBYTE (0x4444 - BYTEORDER)
1032 for (i = 1; i <= 3; i++) {
1036 if (SvREADONLY(sv)) {
1038 sv_force_normal_flags(sv, 0);
1039 if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0))
1040 DIE(aTHX_ PL_no_modify);
1043 if (ckWARN(WARN_MISC))
1044 Perl_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask");
1045 SvPV_force_nolen(sv); /* force string conversion */
1052 /* little endians can use vecs directly */
1053 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1060 masksize = NFDBITS / NBBY;
1062 masksize = sizeof(long); /* documented int, everyone seems to use long */
1064 Zero(&fd_sets[0], 4, char*);
1067 # if SELECT_MIN_BITS == 1
1068 growsize = sizeof(fd_set);
1070 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1071 # undef SELECT_MIN_BITS
1072 # define SELECT_MIN_BITS __FD_SETSIZE
1074 /* If SELECT_MIN_BITS is greater than one we most probably will want
1075 * to align the sizes with SELECT_MIN_BITS/8 because for example
1076 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1077 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1078 * on (sets/tests/clears bits) is 32 bits. */
1079 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1087 timebuf.tv_sec = (long)value;
1088 value -= (NV)timebuf.tv_sec;
1089 timebuf.tv_usec = (long)(value * 1000000.0);
1092 tbuf = Null(struct timeval*);
1094 for (i = 1; i <= 3; i++) {
1096 if (!SvOK(sv) || SvCUR(sv) == 0) {
1103 Sv_Grow(sv, growsize);
1107 while (++j <= growsize) {
1111 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1113 Newx(fd_sets[i], growsize, char);
1114 for (offset = 0; offset < growsize; offset += masksize) {
1115 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1116 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1119 fd_sets[i] = SvPVX(sv);
1123 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1124 /* Can't make just the (void*) conditional because that would be
1125 * cpp #if within cpp macro, and not all compilers like that. */
1126 nfound = PerlSock_select(
1128 (Select_fd_set_t) fd_sets[1],
1129 (Select_fd_set_t) fd_sets[2],
1130 (Select_fd_set_t) fd_sets[3],
1131 (void*) tbuf); /* Workaround for compiler bug. */
1133 nfound = PerlSock_select(
1135 (Select_fd_set_t) fd_sets[1],
1136 (Select_fd_set_t) fd_sets[2],
1137 (Select_fd_set_t) fd_sets[3],
1140 for (i = 1; i <= 3; i++) {
1143 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1145 for (offset = 0; offset < growsize; offset += masksize) {
1146 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1147 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1149 Safefree(fd_sets[i]);
1156 if (GIMME == G_ARRAY && tbuf) {
1157 value = (NV)(timebuf.tv_sec) +
1158 (NV)(timebuf.tv_usec) / 1000000.0;
1159 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1160 sv_setnv(sv, value);
1164 DIE(aTHX_ "select not implemented");
1169 Perl_setdefout(pTHX_ GV *gv)
1172 (void)SvREFCNT_inc(gv);
1174 SvREFCNT_dec(PL_defoutgv);
1184 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1186 egv = GvEGV(PL_defoutgv);
1191 XPUSHs(&PL_sv_undef);
1193 GV ** const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1194 if (gvp && *gvp == egv) {
1195 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1199 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1204 if (!GvIO(newdefout))
1205 gv_IOadd(newdefout);
1206 setdefout(newdefout);
1217 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
1219 if (gv && (io = GvIO(gv))
1220 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1222 const I32 gimme = GIMME_V;
1224 XPUSHs(SvTIED_obj((SV*)io, mg));
1227 call_method("GETC", gimme);
1230 if (gimme == G_SCALAR)
1231 SvSetMagicSV_nosteal(TARG, TOPs);
1234 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1235 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1236 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1237 report_evil_fh(gv, io, PL_op->op_type);
1238 SETERRNO(EBADF,RMS_IFI);
1242 sv_setpvn(TARG, " ", 1);
1243 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1244 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1245 /* Find out how many bytes the char needs */
1246 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1249 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1250 SvCUR_set(TARG,1+len);
1260 return pp_sysread();
1264 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1267 register PERL_CONTEXT *cx;
1268 const I32 gimme = GIMME_V;
1273 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1275 cx->blk_sub.retop = retop;
1277 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
1279 setdefout(gv); /* locally select filehandle so $% et al work */
1311 SV * const tmpsv = sv_newmortal();
1313 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1314 name = SvPV_nolen_const(tmpsv);
1316 DIE(aTHX_ "Undefined format \"%s\" called", name);
1318 DIE(aTHX_ "Not a format reference");
1321 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1323 IoFLAGS(io) &= ~IOf_DIDTOP;
1324 return doform(cv,gv,PL_op->op_next);
1330 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1331 register IO * const io = GvIOp(gv);
1332 PerlIO * const ofp = IoOFP(io);
1336 register PERL_CONTEXT *cx;
1338 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1339 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1342 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1343 PL_formtarget != PL_toptarget)
1347 if (!IoTOP_GV(io)) {
1350 if (!IoTOP_NAME(io)) {
1352 if (!IoFMT_NAME(io))
1353 IoFMT_NAME(io) = savepv(GvNAME(gv));
1354 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1355 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1356 if ((topgv && GvFORM(topgv)) ||
1357 !gv_fetchpv("top",FALSE,SVt_PVFM))
1358 IoTOP_NAME(io) = savesvpv(topname);
1360 IoTOP_NAME(io) = savepvn("top", 3);
1362 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1363 if (!topgv || !GvFORM(topgv)) {
1364 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1367 IoTOP_GV(io) = topgv;
1369 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1370 I32 lines = IoLINES_LEFT(io);
1371 const char *s = SvPVX_const(PL_formtarget);
1372 if (lines <= 0) /* Yow, header didn't even fit!!! */
1374 while (lines-- > 0) {
1375 s = strchr(s, '\n');
1381 const STRLEN save = SvCUR(PL_formtarget);
1382 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1383 do_print(PL_formtarget, ofp);
1384 SvCUR_set(PL_formtarget, save);
1385 sv_chop(PL_formtarget, s);
1386 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1389 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1390 do_print(PL_formfeed, ofp);
1391 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1393 PL_formtarget = PL_toptarget;
1394 IoFLAGS(io) |= IOf_DIDTOP;
1397 DIE(aTHX_ "bad top format reference");
1400 SV * const sv = sv_newmortal();
1402 gv_efullname4(sv, fgv, Nullch, FALSE);
1403 name = SvPV_nolen_const(sv);
1405 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1409 DIE(aTHX_ "Undefined top format called");
1412 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1413 return doform(cv,gv,PL_op);
1417 POPBLOCK(cx,PL_curpm);
1423 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1425 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1426 else if (ckWARN(WARN_CLOSED))
1427 report_evil_fh(gv, io, PL_op->op_type);
1432 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1433 if (ckWARN(WARN_IO))
1434 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1436 if (!do_print(PL_formtarget, fp))
1439 FmLINES(PL_formtarget) = 0;
1440 SvCUR_set(PL_formtarget, 0);
1441 *SvEND(PL_formtarget) = '\0';
1442 if (IoFLAGS(io) & IOf_FLUSH)
1443 (void)PerlIO_flush(fp);
1448 PL_formtarget = PL_bodytarget;
1450 PERL_UNUSED_VAR(newsp);
1451 PERL_UNUSED_VAR(gimme);
1452 return cx->blk_sub.retop;
1457 dVAR; dSP; dMARK; dORIGMARK;
1464 if (PL_op->op_flags & OPf_STACKED)
1469 if (gv && (io = GvIO(gv))
1470 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1472 if (MARK == ORIGMARK) {
1475 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1479 *MARK = SvTIED_obj((SV*)io, mg);
1482 call_method("PRINTF", G_SCALAR);
1485 MARK = ORIGMARK + 1;
1492 if (!(io = GvIO(gv))) {
1493 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1494 report_evil_fh(gv, io, PL_op->op_type);
1495 SETERRNO(EBADF,RMS_IFI);
1498 else if (!(fp = IoOFP(io))) {
1499 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1501 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1502 else if (ckWARN(WARN_CLOSED))
1503 report_evil_fh(gv, io, PL_op->op_type);
1505 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1509 do_sprintf(sv, SP - MARK, MARK + 1);
1510 if (!do_print(sv, fp))
1513 if (IoFLAGS(io) & IOf_FLUSH)
1514 if (PerlIO_flush(fp) == EOF)
1525 PUSHs(&PL_sv_undef);
1532 const int perm = (MAXARG > 3) ? POPi : 0666;
1533 const int mode = POPi;
1534 SV * const sv = POPs;
1535 GV * const gv = (GV *)POPs;
1538 /* Need TIEHANDLE method ? */
1539 const char * const tmps = SvPV_const(sv, len);
1540 /* FIXME? do_open should do const */
1541 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1542 IoLINES(GvIOp(gv)) = 0;
1546 PUSHs(&PL_sv_undef);
1553 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1559 Sock_size_t bufsize;
1567 bool charstart = FALSE;
1568 STRLEN charskip = 0;
1571 GV * const gv = (GV*)*++MARK;
1572 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1573 && gv && (io = GvIO(gv)) )
1575 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1579 *MARK = SvTIED_obj((SV*)io, mg);
1581 call_method("READ", G_SCALAR);
1595 sv_setpvn(bufsv, "", 0);
1596 length = SvIVx(*++MARK);
1599 offset = SvIVx(*++MARK);
1603 if (!io || !IoIFP(io)) {
1604 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1605 report_evil_fh(gv, io, PL_op->op_type);
1606 SETERRNO(EBADF,RMS_IFI);
1609 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1610 buffer = SvPVutf8_force(bufsv, blen);
1611 /* UTF-8 may not have been set if they are all low bytes */
1616 buffer = SvPV_force(bufsv, blen);
1617 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1620 DIE(aTHX_ "Negative length");
1628 if (PL_op->op_type == OP_RECV) {
1629 char namebuf[MAXPATHLEN];
1630 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1631 bufsize = sizeof (struct sockaddr_in);
1633 bufsize = sizeof namebuf;
1635 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1639 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1640 /* 'offset' means 'flags' here */
1641 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1642 (struct sockaddr *)namebuf, &bufsize);
1646 /* Bogus return without padding */
1647 bufsize = sizeof (struct sockaddr_in);
1649 SvCUR_set(bufsv, count);
1650 *SvEND(bufsv) = '\0';
1651 (void)SvPOK_only(bufsv);
1655 /* This should not be marked tainted if the fp is marked clean */
1656 if (!(IoFLAGS(io) & IOf_UNTAINT))
1657 SvTAINTED_on(bufsv);
1659 sv_setpvn(TARG, namebuf, bufsize);
1664 if (PL_op->op_type == OP_RECV)
1665 DIE(aTHX_ PL_no_sock_func, "recv");
1667 if (DO_UTF8(bufsv)) {
1668 /* offset adjust in characters not bytes */
1669 blen = sv_len_utf8(bufsv);
1672 if (-offset > (int)blen)
1673 DIE(aTHX_ "Offset outside string");
1676 if (DO_UTF8(bufsv)) {
1677 /* convert offset-as-chars to offset-as-bytes */
1678 if (offset >= (int)blen)
1679 offset += SvCUR(bufsv) - blen;
1681 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1684 bufsize = SvCUR(bufsv);
1685 /* Allocating length + offset + 1 isn't perfect in the case of reading
1686 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1688 (should be 2 * length + offset + 1, or possibly something longer if
1689 PL_encoding is true) */
1690 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1691 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1692 Zero(buffer+bufsize, offset-bufsize, char);
1694 buffer = buffer + offset;
1696 read_target = bufsv;
1698 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1699 concatenate it to the current buffer. */
1701 /* Truncate the existing buffer to the start of where we will be
1703 SvCUR_set(bufsv, offset);
1705 read_target = sv_newmortal();
1706 SvUPGRADE(read_target, SVt_PV);
1707 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1710 if (PL_op->op_type == OP_SYSREAD) {
1711 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1712 if (IoTYPE(io) == IoTYPE_SOCKET) {
1713 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1719 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1724 #ifdef HAS_SOCKET__bad_code_maybe
1725 if (IoTYPE(io) == IoTYPE_SOCKET) {
1726 char namebuf[MAXPATHLEN];
1727 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1728 bufsize = sizeof (struct sockaddr_in);
1730 bufsize = sizeof namebuf;
1732 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1733 (struct sockaddr *)namebuf, &bufsize);
1738 count = PerlIO_read(IoIFP(io), buffer, length);
1739 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1740 if (count == 0 && PerlIO_error(IoIFP(io)))
1744 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1745 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1748 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1749 *SvEND(read_target) = '\0';
1750 (void)SvPOK_only(read_target);
1751 if (fp_utf8 && !IN_BYTES) {
1752 /* Look at utf8 we got back and count the characters */
1753 const char *bend = buffer + count;
1754 while (buffer < bend) {
1756 skip = UTF8SKIP(buffer);
1759 if (buffer - charskip + skip > bend) {
1760 /* partial character - try for rest of it */
1761 length = skip - (bend-buffer);
1762 offset = bend - SvPVX_const(bufsv);
1774 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1775 provided amount read (count) was what was requested (length)
1777 if (got < wanted && count == length) {
1778 length = wanted - got;
1779 offset = bend - SvPVX_const(bufsv);
1782 /* return value is character count */
1786 else if (buffer_utf8) {
1787 /* Let svcatsv upgrade the bytes we read in to utf8.
1788 The buffer is a mortal so will be freed soon. */
1789 sv_catsv_nomg(bufsv, read_target);
1792 /* This should not be marked tainted if the fp is marked clean */
1793 if (!(IoFLAGS(io) & IOf_UNTAINT))
1794 SvTAINTED_on(bufsv);
1807 const int items = (SP - PL_stack_base) - TOPMARK;
1811 sv = sv_2mortal(newSViv(sv_len(*SP)));
1820 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1831 if (PL_op->op_type == OP_SYSWRITE
1832 && gv && (io = GvIO(gv))
1833 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1838 *MARK = SvTIED_obj((SV*)io, mg);
1840 call_method("WRITE", G_SCALAR);
1851 #if Size_t_size > IVSIZE
1852 length = (Size_t)SvNVx(*++MARK);
1854 length = (Size_t)SvIVx(*++MARK);
1856 if ((SSize_t)length < 0)
1857 DIE(aTHX_ "Negative length");
1860 if (!io || !IoIFP(io)) {
1862 if (ckWARN(WARN_CLOSED))
1863 report_evil_fh(gv, io, PL_op->op_type);
1864 SETERRNO(EBADF,RMS_IFI);
1868 if (PerlIO_isutf8(IoIFP(io))) {
1869 if (!SvUTF8(bufsv)) {
1870 bufsv = sv_2mortal(newSVsv(bufsv));
1871 buffer = sv_2pvutf8(bufsv, &blen);
1873 buffer = SvPV_const(bufsv, blen);
1876 if (DO_UTF8(bufsv)) {
1877 /* Not modifying source SV, so making a temporary copy. */
1878 bufsv = sv_2mortal(newSVsv(bufsv));
1879 sv_utf8_downgrade(bufsv, FALSE);
1881 buffer = SvPV_const(bufsv, blen);
1884 if (PL_op->op_type == OP_SYSWRITE) {
1886 if (DO_UTF8(bufsv)) {
1887 /* length and offset are in chars */
1888 blen = sv_len_utf8(bufsv);
1891 offset = SvIVx(*++MARK);
1893 if (-offset > (IV)blen)
1894 DIE(aTHX_ "Offset outside string");
1896 } else if (offset >= (IV)blen && blen > 0)
1897 DIE(aTHX_ "Offset outside string");
1900 if (length > blen - offset)
1901 length = blen - offset;
1902 if (DO_UTF8(bufsv)) {
1903 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1904 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1907 buffer = buffer+offset;
1909 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1910 if (IoTYPE(io) == IoTYPE_SOCKET) {
1911 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1917 /* See the note at doio.c:do_print about filesize limits. --jhi */
1918 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1923 else if (SP > MARK) {
1925 char * const sockbuf = SvPVx(*++MARK, mlen);
1926 /* length is really flags */
1927 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1928 length, (struct sockaddr *)sockbuf, mlen);
1931 /* length is really flags */
1932 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1935 DIE(aTHX_ PL_no_sock_func, "send");
1941 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1942 #if Size_t_size > IVSIZE
1956 return pp_sysread();
1967 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1969 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1971 if (io && !IoIFP(io)) {
1972 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1974 IoFLAGS(io) &= ~IOf_START;
1975 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1976 sv_setpvn(GvSV(gv), "-", 1);
1977 SvSETMAGIC(GvSV(gv));
1979 else if (!nextargv(gv))
1984 gv = PL_last_in_gv; /* eof */
1987 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1989 if (gv && (io = GvIO(gv))
1990 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1993 XPUSHs(SvTIED_obj((SV*)io, mg));
1996 call_method("EOF", G_SCALAR);
2002 PUSHs(boolSV(!gv || do_eof(gv)));
2016 gv = PL_last_in_gv = (GV*)POPs;
2018 if (gv && (io = GvIO(gv))
2019 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2022 XPUSHs(SvTIED_obj((SV*)io, mg));
2025 call_method("TELL", G_SCALAR);
2031 #if LSEEKSIZE > IVSIZE
2032 PUSHn( do_tell(gv) );
2034 PUSHi( do_tell(gv) );
2041 return pp_sysseek();
2049 const int whence = POPi;
2050 #if LSEEKSIZE > IVSIZE
2051 Off_t offset = (Off_t)SvNVx(POPs);
2053 Off_t offset = (Off_t)SvIVx(POPs);
2057 gv = PL_last_in_gv = (GV*)POPs;
2059 if (gv && (io = GvIO(gv))
2060 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2063 XPUSHs(SvTIED_obj((SV*)io, mg));
2064 #if LSEEKSIZE > IVSIZE
2065 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2067 XPUSHs(sv_2mortal(newSViv(offset)));
2069 XPUSHs(sv_2mortal(newSViv(whence)));
2072 call_method("SEEK", G_SCALAR);
2078 if (PL_op->op_type == OP_SEEK)
2079 PUSHs(boolSV(do_seek(gv, offset, whence)));
2081 Off_t sought = do_sysseek(gv, offset, whence);
2083 PUSHs(&PL_sv_undef);
2086 #if LSEEKSIZE > IVSIZE
2091 : newSVpvn(zero_but_true, ZBTLEN);
2092 PUSHs(sv_2mortal(sv));
2101 /* There seems to be no consensus on the length type of truncate()
2102 * and ftruncate(), both off_t and size_t have supporters. In
2103 * general one would think that when using large files, off_t is
2104 * at least as wide as size_t, so using an off_t should be okay. */
2105 /* XXX Configure probe for the length type of *truncate() needed XXX */
2108 #if Off_t_size > IVSIZE
2113 /* Checking for length < 0 is problematic as the type might or
2114 * might not be signed: if it is not, clever compilers will moan. */
2115 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2122 if (PL_op->op_flags & OPf_SPECIAL) {
2123 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2132 TAINT_PROPER("truncate");
2133 if (!(fp = IoIFP(io))) {
2139 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2141 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2151 if (SvTYPE(sv) == SVt_PVGV) {
2152 tmpgv = (GV*)sv; /* *main::FRED for example */
2153 goto do_ftruncate_gv;
2155 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2156 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2157 goto do_ftruncate_gv;
2159 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2160 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2161 goto do_ftruncate_io;
2164 name = SvPV_nolen_const(sv);
2165 TAINT_PROPER("truncate");
2167 if (truncate(name, len) < 0)
2173 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2176 if (my_chsize(tmpfd, len) < 0)
2178 PerlLIO_close(tmpfd);
2187 SETERRNO(EBADF,RMS_IFI);
2201 const unsigned int func = POPu;
2202 const int optype = PL_op->op_type;
2206 IO *io = gv ? GvIOn(gv) : 0;
2208 if (!io || !argsv || !IoIFP(io)) {
2209 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2210 report_evil_fh(gv, io, PL_op->op_type);
2211 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2215 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2218 s = SvPV_force(argsv, len);
2219 need = IOCPARM_LEN(func);
2221 s = Sv_Grow(argsv, need + 1);
2222 SvCUR_set(argsv, need);
2225 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2228 retval = SvIV(argsv);
2229 s = INT2PTR(char*,retval); /* ouch */
2232 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2234 if (optype == OP_IOCTL)
2236 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2238 DIE(aTHX_ "ioctl is not implemented");
2242 DIE(aTHX_ "fcntl is not implemented");
2244 #if defined(OS2) && defined(__EMX__)
2245 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2247 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2251 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2253 if (s[SvCUR(argsv)] != 17)
2254 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2256 s[SvCUR(argsv)] = 0; /* put our null back */
2257 SvSETMAGIC(argsv); /* Assume it has changed */
2266 PUSHp(zero_but_true, ZBTLEN);
2287 if (gv && (io = GvIO(gv)))
2294 (void)PerlIO_flush(fp);
2295 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2298 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2299 report_evil_fh(gv, io, PL_op->op_type);
2301 SETERRNO(EBADF,RMS_IFI);
2306 DIE(aTHX_ PL_no_func, "flock()");
2318 int protocol = POPi;
2324 io = gv ? GvIOn(gv) : NULL;
2327 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2328 report_evil_fh(gv, io, PL_op->op_type);
2330 do_close(gv, FALSE);
2331 SETERRNO(EBADF,LIB_INVARG);
2336 do_close(gv, FALSE);
2338 TAINT_PROPER("socket");
2339 fd = PerlSock_socket(domain, type, protocol);
2342 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2343 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2344 IoTYPE(io) = IoTYPE_SOCKET;
2345 if (!IoIFP(io) || !IoOFP(io)) {
2346 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2347 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2348 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2351 #if defined(HAS_FCNTL) && defined(F_SETFD)
2352 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2356 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2361 DIE(aTHX_ PL_no_sock_func, "socket");
2367 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2373 int protocol = POPi;
2380 io1 = gv1 ? GvIOn(gv1) : NULL;
2381 io2 = gv2 ? GvIOn(gv2) : NULL;
2382 if (!gv1 || !gv2 || !io1 || !io2) {
2383 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2385 report_evil_fh(gv1, io1, PL_op->op_type);
2387 report_evil_fh(gv1, io2, PL_op->op_type);
2390 do_close(gv1, FALSE);
2392 do_close(gv2, FALSE);
2397 do_close(gv1, FALSE);
2399 do_close(gv2, FALSE);
2401 TAINT_PROPER("socketpair");
2402 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2404 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2405 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2406 IoTYPE(io1) = IoTYPE_SOCKET;
2407 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2408 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2409 IoTYPE(io2) = IoTYPE_SOCKET;
2410 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2411 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2412 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2413 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2414 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2415 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2416 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2419 #if defined(HAS_FCNTL) && defined(F_SETFD)
2420 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2421 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2426 DIE(aTHX_ PL_no_sock_func, "socketpair");
2434 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2435 extern void GETPRIVMODE();
2436 extern void GETUSERMODE();
2439 /* OK, so on what platform does bind modify addr? */
2442 register IO *io = GvIOn(gv);
2446 int mpeprivmode = 0;
2449 if (!io || !IoIFP(io))
2452 addr = SvPV_const(addrsv, len);
2453 TAINT_PROPER("bind");
2454 #ifdef MPE /* Deal with MPE bind() peculiarities */
2455 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2456 /* The address *MUST* stupidly be zero. */
2457 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2458 /* PRIV mode is required to bind() to ports < 1024. */
2459 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2460 ((struct sockaddr_in *)addr)->sin_port > 0) {
2461 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2466 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2467 (struct sockaddr *)addr, len) >= 0)
2470 #ifdef MPE /* Switch back to USER mode */
2481 if (ckWARN(WARN_CLOSED))
2482 report_evil_fh(gv, io, PL_op->op_type);
2483 SETERRNO(EBADF,SS_IVCHAN);
2486 DIE(aTHX_ PL_no_sock_func, "bind");
2497 register IO *io = GvIOn(gv);
2500 if (!io || !IoIFP(io))
2503 addr = SvPV_const(addrsv, len);
2504 TAINT_PROPER("connect");
2505 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2511 if (ckWARN(WARN_CLOSED))
2512 report_evil_fh(gv, io, PL_op->op_type);
2513 SETERRNO(EBADF,SS_IVCHAN);
2516 DIE(aTHX_ PL_no_sock_func, "connect");
2526 register IO *io = gv ? GvIOn(gv) : NULL;
2528 if (!gv || !io || !IoIFP(io))
2531 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2537 if (ckWARN(WARN_CLOSED))
2538 report_evil_fh(gv, io, PL_op->op_type);
2539 SETERRNO(EBADF,SS_IVCHAN);
2542 DIE(aTHX_ PL_no_sock_func, "listen");
2554 char namebuf[MAXPATHLEN];
2555 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2556 Sock_size_t len = sizeof (struct sockaddr_in);
2558 Sock_size_t len = sizeof namebuf;
2571 if (!gstio || !IoIFP(gstio))
2575 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2579 do_close(ngv, FALSE);
2580 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2581 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2582 IoTYPE(nstio) = IoTYPE_SOCKET;
2583 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2584 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2585 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2586 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2589 #if defined(HAS_FCNTL) && defined(F_SETFD)
2590 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2594 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2595 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2597 #ifdef __SCO_VERSION__
2598 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2601 PUSHp(namebuf, len);
2605 if (ckWARN(WARN_CLOSED))
2606 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2607 SETERRNO(EBADF,SS_IVCHAN);
2613 DIE(aTHX_ PL_no_sock_func, "accept");
2623 register IO *io = GvIOn(gv);
2625 if (!io || !IoIFP(io))
2628 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2632 if (ckWARN(WARN_CLOSED))
2633 report_evil_fh(gv, io, PL_op->op_type);
2634 SETERRNO(EBADF,SS_IVCHAN);
2637 DIE(aTHX_ PL_no_sock_func, "shutdown");
2644 return pp_ssockopt();
2646 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2654 int optype = PL_op->op_type;
2657 unsigned int optname;
2663 if (optype == OP_GSOCKOPT)
2664 sv = sv_2mortal(NEWSV(22, 257));
2667 optname = (unsigned int) POPi;
2668 lvl = (unsigned int) POPi;
2672 if (!io || !IoIFP(io))
2675 fd = PerlIO_fileno(IoIFP(io));
2679 (void)SvPOK_only(sv);
2683 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2690 #if defined(__SYMBIAN32__)
2691 # define SETSOCKOPT_OPTION_VALUE_T void *
2693 # define SETSOCKOPT_OPTION_VALUE_T const char *
2695 /* XXX TODO: We need to have a proper type (a Configure probe,
2696 * etc.) for what the C headers think of the third argument of
2697 * setsockopt(), the option_value read-only buffer: is it
2698 * a "char *", or a "void *", const or not. Some compilers
2699 * don't take kindly to e.g. assuming that "char *" implicitly
2700 * promotes to a "void *", or to explicitly promoting/demoting
2701 * consts to non/vice versa. The "const void *" is the SUS
2702 * definition, but that does not fly everywhere for the above
2704 SETSOCKOPT_OPTION_VALUE_T buf;
2708 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2712 aint = (int)SvIV(sv);
2713 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
2716 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2725 if (ckWARN(WARN_CLOSED))
2726 report_evil_fh(gv, io, optype);
2727 SETERRNO(EBADF,SS_IVCHAN);
2732 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2739 return pp_getpeername();
2741 DIE(aTHX_ PL_no_sock_func, "getsockname");
2749 int optype = PL_op->op_type;
2753 register IO *io = GvIOn(gv);
2756 if (!io || !IoIFP(io))
2759 sv = sv_2mortal(NEWSV(22, 257));
2760 (void)SvPOK_only(sv);
2764 fd = PerlIO_fileno(IoIFP(io));
2766 case OP_GETSOCKNAME:
2767 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2770 case OP_GETPEERNAME:
2771 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2773 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2775 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";
2776 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2777 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2778 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
2779 sizeof(u_short) + sizeof(struct in_addr))) {
2786 #ifdef BOGUS_GETNAME_RETURN
2787 /* Interactive Unix, getpeername() and getsockname()
2788 does not return valid namelen */
2789 if (len == BOGUS_GETNAME_RETURN)
2790 len = sizeof(struct sockaddr);
2798 if (ckWARN(WARN_CLOSED))
2799 report_evil_fh(gv, io, optype);
2800 SETERRNO(EBADF,SS_IVCHAN);
2805 DIE(aTHX_ PL_no_sock_func, "getpeername");
2823 if (PL_op->op_flags & OPf_REF) {
2825 if (PL_op->op_type == OP_LSTAT) {
2826 if (gv != PL_defgv) {
2827 if (ckWARN(WARN_IO))
2828 Perl_warner(aTHX_ packWARN(WARN_IO),
2829 "lstat() on filehandle %s", GvENAME(gv));
2830 } else if (PL_laststype != OP_LSTAT)
2831 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2835 if (gv != PL_defgv) {
2836 PL_laststype = OP_STAT;
2838 sv_setpvn(PL_statname, "", 0);
2839 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2840 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2842 if (PL_laststatval < 0) {
2843 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2844 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2850 if (SvTYPE(sv) == SVt_PVGV) {
2854 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2856 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2857 Perl_warner(aTHX_ packWARN(WARN_IO),
2858 "lstat() on filehandle %s", GvENAME(gv));
2861 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2863 PL_laststype = PL_op->op_type;
2864 if (PL_op->op_type == OP_LSTAT)
2865 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2867 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2868 if (PL_laststatval < 0) {
2869 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2870 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2876 if (gimme != G_ARRAY) {
2877 if (gimme != G_VOID)
2878 XPUSHs(boolSV(max));
2884 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2885 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2886 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2887 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2888 #if Uid_t_size > IVSIZE
2889 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2891 # if Uid_t_sign <= 0
2892 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2894 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2897 #if Gid_t_size > IVSIZE
2898 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2900 # if Gid_t_sign <= 0
2901 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2903 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2906 #ifdef USE_STAT_RDEV
2907 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2909 PUSHs(sv_2mortal(newSVpvn("", 0)));
2911 #if Off_t_size > IVSIZE
2912 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2914 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2917 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2918 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2919 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2921 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2922 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2923 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2925 #ifdef USE_STAT_BLOCKS
2926 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2927 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2929 PUSHs(sv_2mortal(newSVpvn("", 0)));
2930 PUSHs(sv_2mortal(newSVpvn("", 0)));
2936 /* This macro is used by the stacked filetest operators :
2937 * if the previous filetest failed, short-circuit and pass its value.
2938 * Else, discard it from the stack and continue. --rgs
2940 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2941 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2942 else { (void)POPs; PUTBACK; } \
2949 STACKED_FTEST_CHECK;
2950 #if defined(HAS_ACCESS) && defined(R_OK)
2951 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2952 result = access(POPpx, R_OK);
2967 if (cando(S_IRUSR, 0, &PL_statcache))
2976 STACKED_FTEST_CHECK;
2977 #if defined(HAS_ACCESS) && defined(W_OK)
2978 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2979 result = access(POPpx, W_OK);
2994 if (cando(S_IWUSR, 0, &PL_statcache))
3003 STACKED_FTEST_CHECK;
3004 #if defined(HAS_ACCESS) && defined(X_OK)
3005 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3006 result = access(POPpx, X_OK);
3021 if (cando(S_IXUSR, 0, &PL_statcache))
3030 STACKED_FTEST_CHECK;
3031 #ifdef PERL_EFF_ACCESS_R_OK
3032 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3033 result = PERL_EFF_ACCESS_R_OK(POPpx);
3048 if (cando(S_IRUSR, 1, &PL_statcache))
3057 STACKED_FTEST_CHECK;
3058 #ifdef PERL_EFF_ACCESS_W_OK
3059 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3060 result = PERL_EFF_ACCESS_W_OK(POPpx);
3075 if (cando(S_IWUSR, 1, &PL_statcache))
3084 STACKED_FTEST_CHECK;
3085 #ifdef PERL_EFF_ACCESS_X_OK
3086 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3087 result = PERL_EFF_ACCESS_X_OK(POPpx);
3102 if (cando(S_IXUSR, 1, &PL_statcache))
3111 STACKED_FTEST_CHECK;
3121 return pp_ftrowned();
3128 STACKED_FTEST_CHECK;
3133 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3143 STACKED_FTEST_CHECK;
3148 if (PL_statcache.st_size == 0)
3157 STACKED_FTEST_CHECK;
3162 #if Off_t_size > IVSIZE
3163 PUSHn(PL_statcache.st_size);
3165 PUSHi(PL_statcache.st_size);
3174 STACKED_FTEST_CHECK;
3179 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3187 STACKED_FTEST_CHECK;
3192 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3200 STACKED_FTEST_CHECK;
3205 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3213 STACKED_FTEST_CHECK;
3218 if (S_ISSOCK(PL_statcache.st_mode))
3227 STACKED_FTEST_CHECK;
3232 if (S_ISCHR(PL_statcache.st_mode))
3241 STACKED_FTEST_CHECK;
3246 if (S_ISBLK(PL_statcache.st_mode))
3255 STACKED_FTEST_CHECK;
3260 if (S_ISREG(PL_statcache.st_mode))
3269 STACKED_FTEST_CHECK;
3274 if (S_ISDIR(PL_statcache.st_mode))
3283 STACKED_FTEST_CHECK;
3288 if (S_ISFIFO(PL_statcache.st_mode))
3295 I32 result = my_lstat();
3299 if (S_ISLNK(PL_statcache.st_mode))
3309 STACKED_FTEST_CHECK;
3314 if (PL_statcache.st_mode & S_ISUID)
3325 STACKED_FTEST_CHECK;
3330 if (PL_statcache.st_mode & S_ISGID)
3341 STACKED_FTEST_CHECK;
3346 if (PL_statcache.st_mode & S_ISVTX)
3359 STACKED_FTEST_CHECK;
3361 if (PL_op->op_flags & OPf_REF)
3363 else if (isGV(TOPs))
3365 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3366 gv = (GV*)SvRV(POPs);
3368 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3370 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3371 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3372 else if (tmpsv && SvOK(tmpsv)) {
3373 const char *tmps = SvPV_nolen_const(tmpsv);
3381 if (PerlLIO_isatty(fd))
3386 #if defined(atarist) /* this will work with atariST. Configure will
3387 make guesses for other systems. */
3388 # define FILE_base(f) ((f)->_base)
3389 # define FILE_ptr(f) ((f)->_ptr)
3390 # define FILE_cnt(f) ((f)->_cnt)
3391 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3401 register STDCHAR *s;
3407 STACKED_FTEST_CHECK;
3409 if (PL_op->op_flags & OPf_REF)
3411 else if (isGV(TOPs))
3413 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3414 gv = (GV*)SvRV(POPs);
3420 if (gv == PL_defgv) {
3422 io = GvIO(PL_statgv);
3425 goto really_filename;
3430 PL_laststatval = -1;
3431 sv_setpvn(PL_statname, "", 0);
3432 io = GvIO(PL_statgv);
3434 if (io && IoIFP(io)) {
3435 if (! PerlIO_has_base(IoIFP(io)))
3436 DIE(aTHX_ "-T and -B not implemented on filehandles");
3437 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3438 if (PL_laststatval < 0)
3440 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3441 if (PL_op->op_type == OP_FTTEXT)
3446 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3447 i = PerlIO_getc(IoIFP(io));
3449 (void)PerlIO_ungetc(IoIFP(io),i);
3451 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3453 len = PerlIO_get_bufsiz(IoIFP(io));
3454 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3455 /* sfio can have large buffers - limit to 512 */
3460 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3462 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3464 SETERRNO(EBADF,RMS_IFI);
3472 PL_laststype = OP_STAT;
3473 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3474 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3475 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3477 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3480 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3481 if (PL_laststatval < 0) {
3482 (void)PerlIO_close(fp);
3485 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3486 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3487 (void)PerlIO_close(fp);
3489 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3490 RETPUSHNO; /* special case NFS directories */
3491 RETPUSHYES; /* null file is anything */
3496 /* now scan s to look for textiness */
3497 /* XXX ASCII dependent code */
3499 #if defined(DOSISH) || defined(USEMYBINMODE)
3500 /* ignore trailing ^Z on short files */
3501 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3505 for (i = 0; i < len; i++, s++) {
3506 if (!*s) { /* null never allowed in text */
3511 else if (!(isPRINT(*s) || isSPACE(*s)))
3514 else if (*s & 128) {
3516 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3519 /* utf8 characters don't count as odd */
3520 if (UTF8_IS_START(*s)) {
3521 int ulen = UTF8SKIP(s);
3522 if (ulen < len - i) {
3524 for (j = 1; j < ulen; j++) {
3525 if (!UTF8_IS_CONTINUATION(s[j]))
3528 --ulen; /* loop does extra increment */
3538 *s != '\n' && *s != '\r' && *s != '\b' &&
3539 *s != '\t' && *s != '\f' && *s != 27)
3544 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3560 const char *tmps = 0;
3564 SV * const sv = POPs;
3565 if (SvTYPE(sv) == SVt_PVGV) {
3568 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3572 tmps = SvPVx_nolen_const(sv);
3576 if( !gv && (!tmps || !*tmps) ) {
3577 HV * const table = GvHVn(PL_envgv);
3580 if ( (svp = hv_fetch(table, "HOME", 4, FALSE))
3581 || (svp = hv_fetch(table, "LOGDIR", 6, FALSE))
3583 || (svp = hv_fetch(table, "SYS$LOGIN", 9, FALSE))
3588 deprecate("chdir('') or chdir(undef) as chdir()");
3589 tmps = SvPV_nolen_const(*svp);
3593 TAINT_PROPER("chdir");
3598 TAINT_PROPER("chdir");
3601 IO* const io = GvIO(gv);
3604 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3606 else if (IoDIRP(io)) {
3608 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3610 DIE(aTHX_ PL_no_func, "dirfd");
3621 DIE(aTHX_ PL_no_func, "fchdir");
3625 PUSHi( PerlDir_chdir(tmps) >= 0 );
3627 /* Clear the DEFAULT element of ENV so we'll get the new value
3629 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3637 dSP; dMARK; dTARGET;
3638 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3644 DIE(aTHX_ PL_no_func, "chown");
3653 TAINT_PROPER("chroot");
3654 PUSHi( chroot(tmps) >= 0 );
3657 DIE(aTHX_ PL_no_func, "chroot");
3663 dSP; dMARK; dTARGET;
3665 value = (I32)apply(PL_op->op_type, MARK, SP);
3673 dSP; dMARK; dTARGET;
3675 value = (I32)apply(PL_op->op_type, MARK, SP);
3683 dSP; dMARK; dTARGET;
3685 value = (I32)apply(PL_op->op_type, MARK, SP);
3695 const char *tmps2 = POPpconstx;
3696 const char *tmps = SvPV_nolen_const(TOPs);
3697 TAINT_PROPER("rename");
3699 anum = PerlLIO_rename(tmps, tmps2);
3701 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3702 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3705 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3706 (void)UNLINK(tmps2);
3707 if (!(anum = link(tmps, tmps2)))
3708 anum = UNLINK(tmps);
3720 const char *tmps2 = POPpconstx;
3721 const char *tmps = SvPV_nolen_const(TOPs);
3722 TAINT_PROPER("link");
3723 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3726 DIE(aTHX_ PL_no_func, "link");
3734 const char *tmps2 = POPpconstx;
3735 const char *tmps = SvPV_nolen_const(TOPs);
3736 TAINT_PROPER("symlink");
3737 SETi( symlink(tmps, tmps2) >= 0 );
3740 DIE(aTHX_ PL_no_func, "symlink");
3750 char buf[MAXPATHLEN];
3753 #ifndef INCOMPLETE_TAINTS
3757 len = readlink(tmps, buf, sizeof(buf) - 1);
3765 RETSETUNDEF; /* just pretend it's a normal file */
3769 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3771 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3773 char * const save_filename = filename;
3779 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3780 strcpy(cmdline, cmd);
3781 strcat(cmdline, " ");
3782 for (s = cmdline + strlen(cmdline); *filename; ) {
3787 myfp = PerlProc_popen(cmdline, "r");
3791 SV *tmpsv = sv_newmortal();
3792 /* Need to save/restore 'PL_rs' ?? */
3793 s = sv_gets(tmpsv, myfp, 0);
3794 (void)PerlProc_pclose(myfp);
3798 #ifdef HAS_SYS_ERRLIST
3803 /* you don't see this */
3805 #ifdef HAS_SYS_ERRLIST
3813 if (instr(s, errmsg)) {
3820 #define EACCES EPERM
3822 if (instr(s, "cannot make"))
3823 SETERRNO(EEXIST,RMS_FEX);
3824 else if (instr(s, "existing file"))
3825 SETERRNO(EEXIST,RMS_FEX);
3826 else if (instr(s, "ile exists"))
3827 SETERRNO(EEXIST,RMS_FEX);
3828 else if (instr(s, "non-exist"))
3829 SETERRNO(ENOENT,RMS_FNF);
3830 else if (instr(s, "does not exist"))
3831 SETERRNO(ENOENT,RMS_FNF);
3832 else if (instr(s, "not empty"))
3833 SETERRNO(EBUSY,SS_DEVOFFLINE);
3834 else if (instr(s, "cannot access"))
3835 SETERRNO(EACCES,RMS_PRV);
3837 SETERRNO(EPERM,RMS_PRV);
3840 else { /* some mkdirs return no failure indication */
3841 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3842 if (PL_op->op_type == OP_RMDIR)
3847 SETERRNO(EACCES,RMS_PRV); /* a guess */
3856 /* This macro removes trailing slashes from a directory name.
3857 * Different operating and file systems take differently to
3858 * trailing slashes. According to POSIX 1003.1 1996 Edition
3859 * any number of trailing slashes should be allowed.
3860 * Thusly we snip them away so that even non-conforming
3861 * systems are happy.
3862 * We should probably do this "filtering" for all
3863 * the functions that expect (potentially) directory names:
3864 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3865 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3867 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3868 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3871 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3872 (tmps) = savepvn((tmps), (len)); \
3892 TRIMSLASHES(tmps,len,copy);
3894 TAINT_PROPER("mkdir");
3896 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3898 SETi( dooneliner("mkdir", tmps) );
3899 oldumask = PerlLIO_umask(0);
3900 PerlLIO_umask(oldumask);
3901 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3915 TRIMSLASHES(tmps,len,copy);
3916 TAINT_PROPER("rmdir");
3918 SETi( PerlDir_rmdir(tmps) >= 0 );
3920 SETi( dooneliner("rmdir", tmps) );
3927 /* Directory calls. */
3931 #if defined(Direntry_t) && defined(HAS_READDIR)
3933 const char *dirname = POPpconstx;
3935 register IO *io = GvIOn(gv);
3941 PerlDir_close(IoDIRP(io));
3942 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3948 SETERRNO(EBADF,RMS_DIR);
3951 DIE(aTHX_ PL_no_dir_func, "opendir");
3957 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3958 DIE(aTHX_ PL_no_dir_func, "readdir");
3960 #if !defined(I_DIRENT) && !defined(VMS)
3961 Direntry_t *readdir (DIR *);
3966 const I32 gimme = GIMME;
3967 GV *gv = (GV *)POPs;
3968 register Direntry_t *dp;
3969 register IO *io = GvIOn(gv);
3971 if (!io || !IoDIRP(io))
3975 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3979 sv = newSVpvn(dp->d_name, dp->d_namlen);
3981 sv = newSVpv(dp->d_name, 0);
3983 #ifndef INCOMPLETE_TAINTS
3984 if (!(IoFLAGS(io) & IOf_UNTAINT))
3987 XPUSHs(sv_2mortal(sv));
3989 while (gimme == G_ARRAY);
3991 if (!dp && gimme != G_ARRAY)
3998 SETERRNO(EBADF,RMS_ISI);
3999 if (GIMME == G_ARRAY)
4008 #if defined(HAS_TELLDIR) || defined(telldir)
4010 /* XXX does _anyone_ need this? --AD 2/20/1998 */
4011 /* XXX netbsd still seemed to.
4012 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
4013 --JHI 1999-Feb-02 */
4014 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
4015 long telldir (DIR *);
4018 register IO *io = GvIOn(gv);
4020 if (!io || !IoDIRP(io))
4023 PUSHi( PerlDir_tell(IoDIRP(io)) );
4027 SETERRNO(EBADF,RMS_ISI);
4030 DIE(aTHX_ PL_no_dir_func, "telldir");
4036 #if defined(HAS_SEEKDIR) || defined(seekdir)
4040 register IO *io = GvIOn(gv);
4042 if (!io || !IoDIRP(io))
4045 (void)PerlDir_seek(IoDIRP(io), along);
4050 SETERRNO(EBADF,RMS_ISI);
4053 DIE(aTHX_ PL_no_dir_func, "seekdir");
4059 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4062 register IO *io = GvIOn(gv);
4064 if (!io || !IoDIRP(io))
4067 (void)PerlDir_rewind(IoDIRP(io));
4071 SETERRNO(EBADF,RMS_ISI);
4074 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4080 #if defined(Direntry_t) && defined(HAS_READDIR)
4083 register IO *io = GvIOn(gv);
4085 if (!io || !IoDIRP(io))
4088 #ifdef VOID_CLOSEDIR
4089 PerlDir_close(IoDIRP(io));
4091 if (PerlDir_close(IoDIRP(io)) < 0) {
4092 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4101 SETERRNO(EBADF,RMS_IFI);
4104 DIE(aTHX_ PL_no_dir_func, "closedir");
4108 /* Process control. */
4118 PERL_FLUSHALL_FOR_CHILD;
4119 childpid = PerlProc_fork();
4123 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4124 SvREADONLY_off(GvSV(tmpgv));
4125 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4126 SvREADONLY_on(GvSV(tmpgv));
4128 #ifdef THREADS_HAVE_PIDS
4129 PL_ppid = (IV)getppid();
4131 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4136 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4141 PERL_FLUSHALL_FOR_CHILD;
4142 childpid = PerlProc_fork();
4148 DIE(aTHX_ PL_no_func, "fork");
4155 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4160 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4161 childpid = wait4pid(-1, &argflags, 0);
4163 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4168 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4169 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4170 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
4172 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
4177 DIE(aTHX_ PL_no_func, "wait");
4183 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4192 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4193 result = wait4pid(pid, &argflags, optype);
4195 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4200 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4201 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4202 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
4204 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
4209 DIE(aTHX_ PL_no_func, "waitpid");
4215 dSP; dMARK; dORIGMARK; dTARGET;
4221 while (++MARK <= SP) {
4222 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4227 TAINT_PROPER("system");
4229 PERL_FLUSHALL_FOR_CHILD;
4230 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4236 if (PerlProc_pipe(pp) >= 0)
4238 while ((childpid = PerlProc_fork()) == -1) {
4239 if (errno != EAGAIN) {
4244 PerlLIO_close(pp[0]);
4245 PerlLIO_close(pp[1]);
4252 Sigsave_t ihand,qhand; /* place to save signals during system() */
4256 PerlLIO_close(pp[1]);
4258 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4259 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
4262 result = wait4pid(childpid, &status, 0);
4263 } while (result == -1 && errno == EINTR);
4265 (void)rsignal_restore(SIGINT, &ihand);
4266 (void)rsignal_restore(SIGQUIT, &qhand);
4268 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
4269 do_execfree(); /* free any memory child malloced on fork */
4275 while (n < sizeof(int)) {
4276 n1 = PerlLIO_read(pp[0],
4277 (void*)(((char*)&errkid)+n),
4283 PerlLIO_close(pp[0]);
4284 if (n) { /* Error */
4285 if (n != sizeof(int))
4286 DIE(aTHX_ "panic: kid popen errno read");
4287 errno = errkid; /* Propagate errno from kid */
4288 STATUS_NATIVE_CHILD_SET(-1);
4291 PUSHi(STATUS_CURRENT);
4295 PerlLIO_close(pp[0]);
4296 #if defined(HAS_FCNTL) && defined(F_SETFD)
4297 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4300 if (PL_op->op_flags & OPf_STACKED) {
4301 SV *really = *++MARK;
4302 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4304 else if (SP - MARK != 1)
4305 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4307 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4311 #else /* ! FORK or VMS or OS/2 */
4314 if (PL_op->op_flags & OPf_STACKED) {
4315 SV *really = *++MARK;
4316 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4317 value = (I32)do_aspawn(really, MARK, SP);
4319 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4322 else if (SP - MARK != 1) {
4323 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4324 value = (I32)do_aspawn(Nullsv, MARK, SP);
4326 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4330 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4332 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4334 STATUS_NATIVE_CHILD_SET(value);
4337 PUSHi(result ? value : STATUS_CURRENT);
4338 #endif /* !FORK or VMS */
4344 dSP; dMARK; dORIGMARK; dTARGET;
4349 while (++MARK <= SP) {
4350 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4355 TAINT_PROPER("exec");
4357 PERL_FLUSHALL_FOR_CHILD;
4358 if (PL_op->op_flags & OPf_STACKED) {
4359 SV *really = *++MARK;
4360 value = (I32)do_aexec(really, MARK, SP);
4362 else if (SP - MARK != 1)
4364 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4368 (void ) do_aspawn(Nullsv, MARK, SP);
4372 value = (I32)do_aexec(Nullsv, MARK, SP);
4377 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4380 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4383 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4396 dSP; dMARK; dTARGET;
4398 value = (I32)apply(PL_op->op_type, MARK, SP);
4403 DIE(aTHX_ PL_no_func, "kill");
4411 # ifdef THREADS_HAVE_PIDS
4412 if (PL_ppid != 1 && getppid() == 1)
4413 /* maybe the parent process has died. Refresh ppid cache */
4417 XPUSHi( getppid() );
4421 DIE(aTHX_ PL_no_func, "getppid");
4437 pgrp = (I32)BSD_GETPGRP(pid);
4439 if (pid != 0 && pid != PerlProc_getpid())
4440 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4446 DIE(aTHX_ PL_no_func, "getpgrp()");
4465 TAINT_PROPER("setpgrp");
4467 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4469 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4470 || (pid != 0 && pid != PerlProc_getpid()))
4472 DIE(aTHX_ "setpgrp can't take arguments");
4474 SETi( setpgrp() >= 0 );
4475 #endif /* USE_BSDPGRP */
4478 DIE(aTHX_ PL_no_func, "setpgrp()");
4484 #ifdef HAS_GETPRIORITY
4488 SETi( getpriority(which, who) );
4491 DIE(aTHX_ PL_no_func, "getpriority()");
4497 #ifdef HAS_SETPRIORITY
4502 TAINT_PROPER("setpriority");
4503 SETi( setpriority(which, who, niceval) >= 0 );
4506 DIE(aTHX_ PL_no_func, "setpriority()");
4516 XPUSHn( time(Null(Time_t*)) );
4518 XPUSHi( time(Null(Time_t*)) );
4529 (void)PerlProc_times(&PL_timesbuf);
4531 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4532 /* struct tms, though same data */
4536 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4537 if (GIMME == G_ARRAY) {
4538 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4539 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4540 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4546 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4548 if (GIMME == G_ARRAY) {
4549 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4550 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4551 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4555 DIE(aTHX_ "times not implemented");
4557 #endif /* HAS_TIMES */
4565 #ifdef LOCALTIME_EDGECASE_BROKEN
4566 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4571 /* No workarounds in the valid range */
4572 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4573 return (localtime (tp));
4575 /* This edge case is to workaround the undefined behaviour, where the
4576 * TIMEZONE makes the time go beyond the defined range.
4577 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4578 * If there is a negative offset in TZ, like MET-1METDST, some broken
4579 * implementations of localtime () (like AIX 5.2) barf with bogus
4581 * 0x7fffffff gmtime 2038-01-19 03:14:07
4582 * 0x7fffffff localtime 1901-12-13 21:45:51
4583 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4584 * 0x3c19137f gmtime 2001-12-13 20:45:51
4585 * 0x3c19137f localtime 2001-12-13 21:45:51
4586 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4587 * Given that legal timezones are typically between GMT-12 and GMT+12
4588 * we turn back the clock 23 hours before calling the localtime
4589 * function, and add those to the return value. This will never cause
4590 * day wrapping problems, since the edge case is Tue Jan *19*
4592 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4595 if (P->tm_hour >= 24) {
4597 P->tm_mday++; /* 18 -> 19 */
4598 P->tm_wday++; /* Mon -> Tue */
4599 P->tm_yday++; /* 18 -> 19 */
4602 } /* S_my_localtime */
4609 const struct tm *tmbuf;
4610 static const char * const dayname[] =
4611 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4612 static const char * const monname[] =
4613 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4614 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4620 when = (Time_t)SvNVx(POPs);
4622 when = (Time_t)SvIVx(POPs);
4625 if (PL_op->op_type == OP_LOCALTIME)
4626 #ifdef LOCALTIME_EDGECASE_BROKEN
4627 tmbuf = S_my_localtime(aTHX_ &when);
4629 tmbuf = localtime(&when);
4632 tmbuf = gmtime(&when);
4634 if (GIMME != G_ARRAY) {
4640 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4641 dayname[tmbuf->tm_wday],
4642 monname[tmbuf->tm_mon],
4647 tmbuf->tm_year + 1900);
4648 PUSHs(sv_2mortal(tsv));
4653 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4654 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4655 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4656 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4657 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4658 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4659 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4660 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4661 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4672 anum = alarm((unsigned int)anum);
4679 DIE(aTHX_ PL_no_func, "alarm");
4690 (void)time(&lasttime);
4695 PerlProc_sleep((unsigned int)duration);
4698 XPUSHi(when - lasttime);
4702 /* Shared memory. */
4716 return pp_shmwrite();
4721 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4722 dSP; dMARK; dTARGET;
4723 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4732 /* Message passing. */
4746 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4747 dSP; dMARK; dTARGET;
4748 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4759 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4760 dSP; dMARK; dTARGET;
4761 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4774 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4775 dSP; dMARK; dTARGET;
4776 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4783 DIE(aTHX_ "System V IPC is not implemented on this machine");
4789 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4790 dSP; dMARK; dTARGET;
4791 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4799 PUSHp(zero_but_true, ZBTLEN);
4809 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4810 dSP; dMARK; dTARGET;
4811 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4820 /* Get system info. */
4824 #ifdef HAS_GETHOSTBYNAME
4825 return pp_ghostent();
4827 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4833 #ifdef HAS_GETHOSTBYADDR
4834 return pp_ghostent();
4836 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4842 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4844 I32 which = PL_op->op_type;
4845 register char **elem;
4847 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4848 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4849 struct hostent *gethostbyname(Netdb_name_t);
4850 struct hostent *gethostent(void);
4852 struct hostent *hent;
4856 if (which == OP_GHBYNAME) {
4857 #ifdef HAS_GETHOSTBYNAME
4858 char* name = POPpbytex;
4859 hent = PerlSock_gethostbyname(name);
4861 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4864 else if (which == OP_GHBYADDR) {
4865 #ifdef HAS_GETHOSTBYADDR
4866 int addrtype = POPi;
4869 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4871 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4873 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4877 #ifdef HAS_GETHOSTENT
4878 hent = PerlSock_gethostent();
4880 DIE(aTHX_ PL_no_sock_func, "gethostent");
4883 #ifdef HOST_NOT_FOUND
4885 #ifdef USE_REENTRANT_API
4886 # ifdef USE_GETHOSTENT_ERRNO
4887 h_errno = PL_reentrant_buffer->_gethostent_errno;
4890 STATUS_UNIX_SET(h_errno);
4894 if (GIMME != G_ARRAY) {
4895 PUSHs(sv = sv_newmortal());
4897 if (which == OP_GHBYNAME) {
4899 sv_setpvn(sv, hent->h_addr, hent->h_length);
4902 sv_setpv(sv, (char*)hent->h_name);
4908 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4909 sv_setpv(sv, (char*)hent->h_name);
4910 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4911 for (elem = hent->h_aliases; elem && *elem; elem++) {
4912 sv_catpv(sv, *elem);
4914 sv_catpvn(sv, " ", 1);
4916 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4917 sv_setiv(sv, (IV)hent->h_addrtype);
4918 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4919 len = hent->h_length;
4920 sv_setiv(sv, (IV)len);
4922 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4923 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4924 sv_setpvn(sv, *elem, len);
4927 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4929 sv_setpvn(sv, hent->h_addr, len);
4934 DIE(aTHX_ PL_no_sock_func, "gethostent");
4940 #ifdef HAS_GETNETBYNAME
4941 return pp_gnetent();
4943 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4949 #ifdef HAS_GETNETBYADDR
4950 return pp_gnetent();
4952 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4958 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4960 I32 which = PL_op->op_type;
4961 register char **elem;
4963 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4964 struct netent *getnetbyaddr(Netdb_net_t, int);
4965 struct netent *getnetbyname(Netdb_name_t);
4966 struct netent *getnetent(void);
4968 struct netent *nent;
4970 if (which == OP_GNBYNAME){
4971 #ifdef HAS_GETNETBYNAME
4972 char *name = POPpbytex;
4973 nent = PerlSock_getnetbyname(name);
4975 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4978 else if (which == OP_GNBYADDR) {
4979 #ifdef HAS_GETNETBYADDR
4980 int addrtype = POPi;
4981 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4982 nent = PerlSock_getnetbyaddr(addr, addrtype);
4984 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4988 #ifdef HAS_GETNETENT
4989 nent = PerlSock_getnetent();
4991 DIE(aTHX_ PL_no_sock_func, "getnetent");
4994 #ifdef HOST_NOT_FOUND
4996 #ifdef USE_REENTRANT_API
4997 # ifdef USE_GETNETENT_ERRNO
4998 h_errno = PL_reentrant_buffer->_getnetent_errno;
5001 STATUS_UNIX_SET(h_errno);
5006 if (GIMME != G_ARRAY) {
5007 PUSHs(sv = sv_newmortal());
5009 if (which == OP_GNBYNAME)
5010 sv_setiv(sv, (IV)nent->n_net);
5012 sv_setpv(sv, nent->n_name);
5018 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5019 sv_setpv(sv, nent->n_name);
5020 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5021 for (elem = nent->n_aliases; elem && *elem; elem++) {
5022 sv_catpv(sv, *elem);
5024 sv_catpvn(sv, " ", 1);
5026 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5027 sv_setiv(sv, (IV)nent->n_addrtype);
5028 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5029 sv_setiv(sv, (IV)nent->n_net);
5034 DIE(aTHX_ PL_no_sock_func, "getnetent");
5040 #ifdef HAS_GETPROTOBYNAME
5041 return pp_gprotoent();
5043 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5049 #ifdef HAS_GETPROTOBYNUMBER
5050 return pp_gprotoent();
5052 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5058 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
5060 I32 which = PL_op->op_type;
5061 register char **elem;
5063 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
5064 struct protoent *getprotobyname(Netdb_name_t);
5065 struct protoent *getprotobynumber(int);
5066 struct protoent *getprotoent(void);
5068 struct protoent *pent;
5070 if (which == OP_GPBYNAME) {
5071 #ifdef HAS_GETPROTOBYNAME
5072 char* name = POPpbytex;
5073 pent = PerlSock_getprotobyname(name);
5075 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5078 else if (which == OP_GPBYNUMBER) {
5079 #ifdef HAS_GETPROTOBYNUMBER
5081 pent = PerlSock_getprotobynumber(number);
5083 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5087 #ifdef HAS_GETPROTOENT
5088 pent = PerlSock_getprotoent();
5090 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5094 if (GIMME != G_ARRAY) {
5095 PUSHs(sv = sv_newmortal());
5097 if (which == OP_GPBYNAME)
5098 sv_setiv(sv, (IV)pent->p_proto);
5100 sv_setpv(sv, pent->p_name);
5106 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5107 sv_setpv(sv, pent->p_name);
5108 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5109 for (elem = pent->p_aliases; elem && *elem; elem++) {
5110 sv_catpv(sv, *elem);
5112 sv_catpvn(sv, " ", 1);
5114 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5115 sv_setiv(sv, (IV)pent->p_proto);
5120 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5126 #ifdef HAS_GETSERVBYNAME
5127 return pp_gservent();
5129 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5135 #ifdef HAS_GETSERVBYPORT
5136 return pp_gservent();
5138 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5144 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5146 I32 which = PL_op->op_type;
5147 register char **elem;
5149 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5150 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5151 struct servent *getservbyport(int, Netdb_name_t);
5152 struct servent *getservent(void);
5154 struct servent *sent;
5156 if (which == OP_GSBYNAME) {
5157 #ifdef HAS_GETSERVBYNAME
5158 char *proto = POPpbytex;
5159 char *name = POPpbytex;
5161 if (proto && !*proto)
5164 sent = PerlSock_getservbyname(name, proto);
5166 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5169 else if (which == OP_GSBYPORT) {
5170 #ifdef HAS_GETSERVBYPORT
5171 char *proto = POPpbytex;
5172 unsigned short port = (unsigned short)POPu;
5174 if (proto && !*proto)
5178 port = PerlSock_htons(port);
5180 sent = PerlSock_getservbyport(port, proto);
5182 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5186 #ifdef HAS_GETSERVENT
5187 sent = PerlSock_getservent();
5189 DIE(aTHX_ PL_no_sock_func, "getservent");
5193 if (GIMME != G_ARRAY) {
5194 PUSHs(sv = sv_newmortal());
5196 if (which == OP_GSBYNAME) {
5198 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5200 sv_setiv(sv, (IV)(sent->s_port));
5204 sv_setpv(sv, sent->s_name);
5210 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5211 sv_setpv(sv, sent->s_name);
5212 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5213 for (elem = sent->s_aliases; elem && *elem; elem++) {
5214 sv_catpv(sv, *elem);
5216 sv_catpvn(sv, " ", 1);
5218 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5220 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5222 sv_setiv(sv, (IV)(sent->s_port));
5224 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5225 sv_setpv(sv, sent->s_proto);
5230 DIE(aTHX_ PL_no_sock_func, "getservent");
5236 #ifdef HAS_SETHOSTENT
5238 PerlSock_sethostent(TOPi);
5241 DIE(aTHX_ PL_no_sock_func, "sethostent");
5247 #ifdef HAS_SETNETENT
5249 PerlSock_setnetent(TOPi);
5252 DIE(aTHX_ PL_no_sock_func, "setnetent");
5258 #ifdef HAS_SETPROTOENT
5260 PerlSock_setprotoent(TOPi);
5263 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5269 #ifdef HAS_SETSERVENT
5271 PerlSock_setservent(TOPi);
5274 DIE(aTHX_ PL_no_sock_func, "setservent");
5280 #ifdef HAS_ENDHOSTENT
5282 PerlSock_endhostent();
5286 DIE(aTHX_ PL_no_sock_func, "endhostent");
5292 #ifdef HAS_ENDNETENT
5294 PerlSock_endnetent();
5298 DIE(aTHX_ PL_no_sock_func, "endnetent");
5304 #ifdef HAS_ENDPROTOENT
5306 PerlSock_endprotoent();
5310 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5316 #ifdef HAS_ENDSERVENT
5318 PerlSock_endservent();
5322 DIE(aTHX_ PL_no_sock_func, "endservent");
5331 DIE(aTHX_ PL_no_func, "getpwnam");
5340 DIE(aTHX_ PL_no_func, "getpwuid");
5348 I32 which = PL_op->op_type;
5350 struct passwd *pwent = NULL;
5352 * We currently support only the SysV getsp* shadow password interface.
5353 * The interface is declared in <shadow.h> and often one needs to link
5354 * with -lsecurity or some such.
5355 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5358 * AIX getpwnam() is clever enough to return the encrypted password
5359 * only if the caller (euid?) is root.
5361 * There are at least three other shadow password APIs. Many platforms
5362 * seem to contain more than one interface for accessing the shadow
5363 * password databases, possibly for compatibility reasons.
5364 * The getsp*() is by far he simplest one, the other two interfaces
5365 * are much more complicated, but also very similar to each other.
5370 * struct pr_passwd *getprpw*();
5371 * The password is in
5372 * char getprpw*(...).ufld.fd_encrypt[]
5373 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5378 * struct es_passwd *getespw*();
5379 * The password is in
5380 * char *(getespw*(...).ufld.fd_encrypt)
5381 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5384 * struct userpw *getuserpw();
5385 * The password is in
5386 * char *(getuserpw(...)).spw_upw_passwd
5387 * (but the de facto standard getpwnam() should work okay)
5389 * Mention I_PROT here so that Configure probes for it.
5391 * In HP-UX for getprpw*() the manual page claims that one should include
5392 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5393 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5394 * and pp_sys.c already includes <shadow.h> if there is such.
5396 * Note that <sys/security.h> is already probed for, but currently
5397 * it is only included in special cases.
5399 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5400 * be preferred interface, even though also the getprpw*() interface
5401 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5402 * One also needs to call set_auth_parameters() in main() before
5403 * doing anything else, whether one is using getespw*() or getprpw*().
5405 * Note that accessing the shadow databases can be magnitudes
5406 * slower than accessing the standard databases.
5411 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5412 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5413 * the pw_comment is left uninitialized. */
5414 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5420 char* name = POPpbytex;
5421 pwent = getpwnam(name);
5427 pwent = getpwuid(uid);
5431 # ifdef HAS_GETPWENT
5433 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5434 if (pwent) pwent = getpwnam(pwent->pw_name);
5437 DIE(aTHX_ PL_no_func, "getpwent");
5443 if (GIMME != G_ARRAY) {
5444 PUSHs(sv = sv_newmortal());
5446 if (which == OP_GPWNAM)
5447 # if Uid_t_sign <= 0
5448 sv_setiv(sv, (IV)pwent->pw_uid);
5450 sv_setuv(sv, (UV)pwent->pw_uid);
5453 sv_setpv(sv, pwent->pw_name);
5459 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5460 sv_setpv(sv, pwent->pw_name);
5462 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5464 /* If we have getspnam(), we try to dig up the shadow
5465 * password. If we are underprivileged, the shadow
5466 * interface will set the errno to EACCES or similar,
5467 * and return a null pointer. If this happens, we will
5468 * use the dummy password (usually "*" or "x") from the
5469 * standard password database.
5471 * In theory we could skip the shadow call completely
5472 * if euid != 0 but in practice we cannot know which
5473 * security measures are guarding the shadow databases
5474 * on a random platform.
5476 * Resist the urge to use additional shadow interfaces.
5477 * Divert the urge to writing an extension instead.
5480 /* Some AIX setups falsely(?) detect some getspnam(), which
5481 * has a different API than the Solaris/IRIX one. */
5482 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5484 struct spwd *spwent;
5485 int saverrno; /* Save and restore errno so that
5486 * underprivileged attempts seem
5487 * to have never made the unsccessful
5488 * attempt to retrieve the shadow password. */
5491 spwent = getspnam(pwent->pw_name);
5493 if (spwent && spwent->sp_pwdp)
5494 sv_setpv(sv, spwent->sp_pwdp);
5498 if (!SvPOK(sv)) /* Use the standard password, then. */
5499 sv_setpv(sv, pwent->pw_passwd);
5502 # ifndef INCOMPLETE_TAINTS
5503 /* passwd is tainted because user himself can diddle with it.
5504 * admittedly not much and in a very limited way, but nevertheless. */
5508 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5509 # if Uid_t_sign <= 0
5510 sv_setiv(sv, (IV)pwent->pw_uid);
5512 sv_setuv(sv, (UV)pwent->pw_uid);
5515 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5516 # if Uid_t_sign <= 0
5517 sv_setiv(sv, (IV)pwent->pw_gid);
5519 sv_setuv(sv, (UV)pwent->pw_gid);
5521 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5522 * because of the poor interface of the Perl getpw*(),
5523 * not because there's some standard/convention saying so.
5524 * A better interface would have been to return a hash,
5525 * but we are accursed by our history, alas. --jhi. */
5526 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5528 sv_setiv(sv, (IV)pwent->pw_change);
5531 sv_setiv(sv, (IV)pwent->pw_quota);
5534 sv_setpv(sv, pwent->pw_age);
5539 /* pw_class and pw_comment are mutually exclusive--.
5540 * see the above note for pw_change, pw_quota, and pw_age. */
5541 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5543 sv_setpv(sv, pwent->pw_class);
5546 sv_setpv(sv, pwent->pw_comment);
5550 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5552 sv_setpv(sv, pwent->pw_gecos);
5554 # ifndef INCOMPLETE_TAINTS
5555 /* pw_gecos is tainted because user himself can diddle with it. */
5559 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5560 sv_setpv(sv, pwent->pw_dir);
5562 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5563 sv_setpv(sv, pwent->pw_shell);
5564 # ifndef INCOMPLETE_TAINTS
5565 /* pw_shell is tainted because user himself can diddle with it. */
5570 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5571 sv_setiv(sv, (IV)pwent->pw_expire);
5576 DIE(aTHX_ PL_no_func, "getpwent");
5582 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5587 DIE(aTHX_ PL_no_func, "setpwent");
5593 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5598 DIE(aTHX_ PL_no_func, "endpwent");
5607 DIE(aTHX_ PL_no_func, "getgrnam");
5616 DIE(aTHX_ PL_no_func, "getgrgid");
5624 I32 which = PL_op->op_type;
5625 register char **elem;
5627 struct group *grent;
5629 if (which == OP_GGRNAM) {
5630 char* name = POPpbytex;
5631 grent = (struct group *)getgrnam(name);
5633 else if (which == OP_GGRGID) {
5635 grent = (struct group *)getgrgid(gid);
5639 grent = (struct group *)getgrent();
5641 DIE(aTHX_ PL_no_func, "getgrent");
5645 if (GIMME != G_ARRAY) {
5646 PUSHs(sv = sv_newmortal());
5648 if (which == OP_GGRNAM)
5649 sv_setiv(sv, (IV)grent->gr_gid);
5651 sv_setpv(sv, grent->gr_name);
5657 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5658 sv_setpv(sv, grent->gr_name);
5660 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5662 sv_setpv(sv, grent->gr_passwd);
5665 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5666 sv_setiv(sv, (IV)grent->gr_gid);
5668 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5669 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5670 /* In UNICOS/mk (_CRAYMPP) the multithreading
5671 * versions (getgrnam_r, getgrgid_r)
5672 * seem to return an illegal pointer
5673 * as the group members list, gr_mem.
5674 * getgrent() doesn't even have a _r version
5675 * but the gr_mem is poisonous anyway.
5676 * So yes, you cannot get the list of group
5677 * members if building multithreaded in UNICOS/mk. */
5678 for (elem = grent->gr_mem; elem && *elem; elem++) {
5679 sv_catpv(sv, *elem);
5681 sv_catpvn(sv, " ", 1);
5688 DIE(aTHX_ PL_no_func, "getgrent");
5694 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5699 DIE(aTHX_ PL_no_func, "setgrent");
5705 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5710 DIE(aTHX_ PL_no_func, "endgrent");
5720 if (!(tmps = PerlProc_getlogin()))
5722 PUSHp(tmps, strlen(tmps));
5725 DIE(aTHX_ PL_no_func, "getlogin");
5729 /* Miscellaneous. */
5734 dSP; dMARK; dORIGMARK; dTARGET;
5735 register I32 items = SP - MARK;
5736 unsigned long a[20];
5741 while (++MARK <= SP) {
5742 if (SvTAINTED(*MARK)) {
5748 TAINT_PROPER("syscall");
5751 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5752 * or where sizeof(long) != sizeof(char*). But such machines will
5753 * not likely have syscall implemented either, so who cares?
5755 while (++MARK <= SP) {
5756 if (SvNIOK(*MARK) || !i)
5757 a[i++] = SvIV(*MARK);
5758 else if (*MARK == &PL_sv_undef)
5761 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5767 DIE(aTHX_ "Too many args to syscall");
5769 DIE(aTHX_ "Too few args to syscall");
5771 retval = syscall(a[0]);
5774 retval = syscall(a[0],a[1]);
5777 retval = syscall(a[0],a[1],a[2]);
5780 retval = syscall(a[0],a[1],a[2],a[3]);
5783 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5786 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5789 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5792 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5796 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5799 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5802 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5806 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5810 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5814 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5815 a[10],a[11],a[12],a[13]);
5817 #endif /* atarist */
5823 DIE(aTHX_ PL_no_func, "syscall");
5827 #ifdef FCNTL_EMULATE_FLOCK
5829 /* XXX Emulate flock() with fcntl().
5830 What's really needed is a good file locking module.
5834 fcntl_emulate_flock(int fd, int operation)
5838 switch (operation & ~LOCK_NB) {
5840 flock.l_type = F_RDLCK;
5843 flock.l_type = F_WRLCK;
5846 flock.l_type = F_UNLCK;
5852 flock.l_whence = SEEK_SET;
5853 flock.l_start = flock.l_len = (Off_t)0;
5855 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5858 #endif /* FCNTL_EMULATE_FLOCK */
5860 #ifdef LOCKF_EMULATE_FLOCK
5862 /* XXX Emulate flock() with lockf(). This is just to increase
5863 portability of scripts. The calls are not completely
5864 interchangeable. What's really needed is a good file
5868 /* The lockf() constants might have been defined in <unistd.h>.
5869 Unfortunately, <unistd.h> causes troubles on some mixed
5870 (BSD/POSIX) systems, such as SunOS 4.1.3.
5872 Further, the lockf() constants aren't POSIX, so they might not be
5873 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5874 just stick in the SVID values and be done with it. Sigh.
5878 # define F_ULOCK 0 /* Unlock a previously locked region */
5881 # define F_LOCK 1 /* Lock a region for exclusive use */
5884 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5887 # define F_TEST 3 /* Test a region for other processes locks */
5891 lockf_emulate_flock(int fd, int operation)
5897 /* flock locks entire file so for lockf we need to do the same */
5899 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5900 if (pos > 0) /* is seekable and needs to be repositioned */
5901 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5902 pos = -1; /* seek failed, so don't seek back afterwards */
5905 switch (operation) {
5907 /* LOCK_SH - get a shared lock */
5909 /* LOCK_EX - get an exclusive lock */
5911 i = lockf (fd, F_LOCK, 0);
5914 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5915 case LOCK_SH|LOCK_NB:
5916 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5917 case LOCK_EX|LOCK_NB:
5918 i = lockf (fd, F_TLOCK, 0);
5920 if ((errno == EAGAIN) || (errno == EACCES))
5921 errno = EWOULDBLOCK;
5924 /* LOCK_UN - unlock (non-blocking is a no-op) */
5926 case LOCK_UN|LOCK_NB:
5927 i = lockf (fd, F_ULOCK, 0);
5930 /* Default - can't decipher operation */
5937 if (pos > 0) /* need to restore position of the handle */
5938 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5943 #endif /* LOCKF_EMULATE_FLOCK */
5947 * c-indentation-style: bsd
5949 * indent-tabs-mode: t
5952 * ex: set ts=8 sts=4 sw=4 noet: