3 * Copyright (c) 1991-2001, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
18 #define PERL_IN_PP_SYS_C
22 /* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
24 * The API is from SysV.
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
31 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
40 extern "C" int syscall(unsigned long,...);
45 # include <sys/wait.h>
49 # include <sys/resource.h>
58 # include <sys/select.h>
62 /* XXX Configure test needed.
63 h_errno might not be a simple 'int', especially for multi-threaded
64 applications, see "extern int errno in perl.h". Creating such
65 a test requires taking into account the differences between
66 compiling multithreaded and singlethreaded ($ccflags et al).
67 HOST_NOT_FOUND is typically defined in <netdb.h>.
69 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
78 struct passwd *getpwnam (char *);
79 struct passwd *getpwuid (Uid_t);
83 struct passwd *getpwent (void);
91 struct group *getgrnam (char *);
92 struct group *getgrgid (Gid_t);
95 struct group *getgrent (void);
100 # if defined(_MSC_VER) || defined(__MINGW32__)
101 # include <sys/utime.h>
107 /* Put this after #includes because fork and vfork prototypes may conflict. */
113 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
116 # define my_chsize PerlLIO_chsize
121 #else /* no flock() */
123 /* fcntl.h might not have been included, even if it exists, because
124 the current Configure only sets I_FCNTL if it's needed to pick up
125 the *_OK constants. Make sure it has been included before testing
126 the fcntl() locking constants. */
127 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
131 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
132 # define FLOCK fcntl_emulate_flock
133 # define FCNTL_EMULATE_FLOCK
134 # else /* no flock() or fcntl(F_SETLK,...) */
136 # define FLOCK lockf_emulate_flock
137 # define LOCKF_EMULATE_FLOCK
139 # endif /* no flock() or fcntl(F_SETLK,...) */
142 static int FLOCK (int, int);
145 * These are the flock() constants. Since this sytems doesn't have
146 * flock(), the values of the constants are probably not available.
160 # endif /* emulating flock() */
162 #endif /* no flock() */
165 static char zero_but_true[ZBTLEN + 1] = "0 but true";
167 #if defined(I_SYS_ACCESS) && !defined(R_OK)
168 # include <sys/access.h>
171 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
172 # define FD_CLOEXEC 1 /* NeXT needs this */
175 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
176 #undef PERL_EFF_ACCESS_W_OK
177 #undef PERL_EFF_ACCESS_X_OK
179 /* F_OK unused: if stat() cannot find it... */
181 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
182 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
183 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
184 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
185 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
188 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
189 # ifdef I_SYS_SECURITY
190 # include <sys/security.h>
194 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
195 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
196 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
199 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
200 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
201 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
205 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
207 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
208 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
209 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
212 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
213 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
214 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
217 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
219 Uid_t ruid = getuid();
220 Uid_t euid = geteuid();
221 Gid_t rgid = getgid();
222 Gid_t egid = getegid();
226 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
227 Perl_croak(aTHX_ "switching effective uid is not implemented");
230 if (setreuid(euid, ruid))
233 if (setresuid(euid, ruid, (Uid_t)-1))
236 Perl_croak(aTHX_ "entering effective uid failed");
239 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
240 Perl_croak(aTHX_ "switching effective gid is not implemented");
243 if (setregid(egid, rgid))
246 if (setresgid(egid, rgid, (Gid_t)-1))
249 Perl_croak(aTHX_ "entering effective gid failed");
252 res = access(path, mode);
255 if (setreuid(ruid, euid))
258 if (setresuid(ruid, euid, (Uid_t)-1))
261 Perl_croak(aTHX_ "leaving effective uid failed");
264 if (setregid(rgid, egid))
267 if (setresgid(rgid, egid, (Gid_t)-1))
270 Perl_croak(aTHX_ "leaving effective gid failed");
275 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
276 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
277 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
280 #if !defined(PERL_EFF_ACCESS_R_OK)
281 /* With it or without it: anyway you get a warning: either that
282 it is unused, or it is declared static and never defined.
285 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
287 Perl_croak(aTHX_ "switching effective uid is not implemented");
303 if (PL_op->op_private & OPpOPEN_IN_RAW)
305 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
307 fp = PerlProc_popen(tmps, mode);
310 if (PL_curcop->cop_io) {
311 type = SvPV_nolen(PL_curcop->cop_io);
314 PerlIO_apply_layers(aTHX_ fp,mode,type);
316 if (gimme == G_VOID) {
318 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
322 else if (gimme == G_SCALAR) {
323 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
324 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
335 if (sv_gets(sv, fp, 0) == Nullch) {
339 XPUSHs(sv_2mortal(sv));
340 if (SvLEN(sv) - SvCUR(sv) > 20) {
341 SvLEN_set(sv, SvCUR(sv)+1);
342 Renew(SvPVX(sv), SvLEN(sv), char);
347 STATUS_NATIVE_SET(PerlProc_pclose(fp));
348 TAINT; /* "I believe that this is not gratuitous!" */
351 STATUS_NATIVE_SET(-1);
352 if (gimme == G_SCALAR)
362 tryAMAGICunTARGET(iter, -1);
364 /* Note that we only ever get here if File::Glob fails to load
365 * without at the same time croaking, for some reason, or if
366 * perl was built with PERL_EXTERNAL_GLOB */
373 * The external globbing program may use things we can't control,
374 * so for security reasons we must assume the worst.
377 taint_proper(PL_no_security, "glob");
381 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
382 PL_last_in_gv = (GV*)*PL_stack_sp--;
384 SAVESPTR(PL_rs); /* This is not permanent, either. */
385 PL_rs = sv_2mortal(newSVpvn("\000", 1));
388 *SvPVX(PL_rs) = '\n';
392 result = do_readline();
397 #if 0 /* XXX never used! */
401 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
402 return do_readline();
408 PL_last_in_gv = cGVOP_gv;
409 return do_readline();
418 if (SP - MARK != 1) {
420 do_join(TARG, &PL_sv_no, MARK, SP);
427 tmps = SvPV(tmpsv, len);
430 (void)SvUPGRADE(error, SVt_PV);
431 if (SvPOK(error) && SvCUR(error))
432 sv_catpv(error, "\t...caught");
434 tmps = SvPV(tmpsv, len);
437 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
439 Perl_warn(aTHX_ "%"SVf, tmpsv);
450 if (SP - MARK != 1) {
452 do_join(TARG, &PL_sv_no, MARK, SP);
454 tmps = SvPV(tmpsv, len);
460 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
464 (void)SvUPGRADE(error, SVt_PV);
465 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
467 SvSetSV(error,tmpsv);
468 else if (sv_isobject(error)) {
469 HV *stash = SvSTASH(SvRV(error));
470 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
472 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
473 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
480 call_sv((SV*)GvCV(gv),
481 G_SCALAR|G_EVAL|G_KEEPERR);
482 sv_setsv(error,*PL_stack_sp--);
488 if (SvPOK(error) && SvCUR(error))
489 sv_catpv(error, "\t...propagated");
491 tmps = SvPV(tmpsv, len);
495 tmpsv = sv_2mortal(newSVpvn("Died", 4));
497 DIE(aTHX_ "%"SVf, tmpsv);
516 DIE(aTHX_ PL_no_usym, "filehandle");
518 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
520 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
521 /* Method's args are same as ours ... */
522 /* ... except handle is replaced by the object */
523 *MARK-- = SvTIED_obj((SV*)gv, mg);
527 call_method("OPEN", G_SCALAR);
540 tmps = SvPV(sv, len);
541 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
544 PUSHi( (I32)PL_forkprocess );
545 else if (PL_forkprocess == 0) /* we are a new child */
563 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
565 XPUSHs(SvTIED_obj((SV*)gv, mg));
568 call_method("CLOSE", G_SCALAR);
574 PUSHs(boolSV(do_close(gv, TRUE)));
594 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
595 DIE(aTHX_ PL_no_usym, "filehandle");
600 do_close(rgv, FALSE);
602 do_close(wgv, FALSE);
604 if (PerlProc_pipe(fd) < 0)
607 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
608 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
609 IoIFP(wstio) = IoOFP(wstio);
610 IoTYPE(rstio) = IoTYPE_RDONLY;
611 IoTYPE(wstio) = IoTYPE_WRONLY;
613 if (!IoIFP(rstio) || !IoOFP(wstio)) {
614 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
615 else PerlLIO_close(fd[0]);
616 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
617 else PerlLIO_close(fd[1]);
620 #if defined(HAS_FCNTL) && defined(F_SETFD)
621 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
622 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
629 DIE(aTHX_ PL_no_func, "pipe");
645 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
647 XPUSHs(SvTIED_obj((SV*)gv, mg));
650 call_method("FILENO", G_SCALAR);
656 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
657 /* Can't do this because people seem to do things like
658 defined(fileno($foo)) to check whether $foo is a valid fh.
659 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
660 report_evil_fh(gv, io, PL_op->op_type);
665 PUSHi(PerlIO_fileno(fp));
676 anum = PerlLIO_umask(0);
677 (void)PerlLIO_umask(anum);
680 anum = PerlLIO_umask(POPi);
681 TAINT_PROPER("umask");
684 /* Only DIE if trying to restrict permissions on `user' (self).
685 * Otherwise it's harmless and more useful to just return undef
686 * since 'group' and 'other' concepts probably don't exist here. */
687 if (MAXARG >= 1 && (POPi & 0700))
688 DIE(aTHX_ "umask not implemented");
689 XPUSHs(&PL_sv_undef);
711 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
713 XPUSHs(SvTIED_obj((SV*)gv, mg));
718 call_method("BINMODE", G_SCALAR);
725 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
726 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
727 report_evil_fh(gv, io, PL_op->op_type);
731 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
732 (discp) ? SvPV_nolen(discp) : Nullch))
746 I32 markoff = MARK - PL_stack_base;
748 int how = PERL_MAGIC_tied;
753 switch(SvTYPE(varsv)) {
755 methname = "TIEHASH";
758 methname = "TIEARRAY";
761 #ifdef GV_UNIQUE_CHECK
762 if (GvUNIQUE((GV*)varsv)) {
763 Perl_croak(aTHX_ "Attempt to tie unique GV");
766 methname = "TIEHANDLE";
767 how = PERL_MAGIC_tiedscalar;
770 methname = "TIESCALAR";
771 how = PERL_MAGIC_tiedscalar;
775 if (sv_isobject(*MARK)) {
777 PUSHSTACKi(PERLSI_MAGIC);
783 call_method(methname, G_SCALAR);
786 /* Not clear why we don't call call_method here too.
787 * perhaps to get different error message ?
789 stash = gv_stashsv(*MARK, FALSE);
790 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
791 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
792 methname, SvPV(*MARK,n_a));
795 PUSHSTACKi(PERLSI_MAGIC);
801 call_sv((SV*)GvCV(gv), G_SCALAR);
807 if (sv_isobject(sv)) {
808 sv_unmagic(varsv, how);
809 /* Croak if a self-tie on an aggregate is attempted. */
810 if (varsv == SvRV(sv) &&
811 (SvTYPE(sv) == SVt_PVAV ||
812 SvTYPE(sv) == SVt_PVHV))
814 "Self-ties of arrays and hashes are not supported");
815 sv_magic(varsv, sv, how, Nullch, 0);
818 SP = PL_stack_base + markoff;
827 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
828 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
831 if ((mg = SvTIED_mg(sv, how))) {
832 SV *obj = SvRV(mg->mg_obj);
835 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
836 isGV(gv) && (cv = GvCV(gv))) {
838 XPUSHs(SvTIED_obj((SV*)gv, mg));
839 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
842 call_sv((SV *)cv, G_VOID);
846 else if (ckWARN(WARN_UNTIE)) {
847 if (mg && SvREFCNT(obj) > 1)
848 Perl_warner(aTHX_ WARN_UNTIE,
849 "untie attempted while %"UVuf" inner references still exist",
850 (UV)SvREFCNT(obj) - 1 ) ;
861 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
862 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
865 if ((mg = SvTIED_mg(sv, how))) {
866 SV *osv = SvTIED_obj(sv, mg);
867 if (osv == mg->mg_obj)
868 osv = sv_mortalcopy(osv);
886 sv = sv_mortalcopy(&PL_sv_no);
887 sv_setpv(sv, "AnyDBM_File");
888 stash = gv_stashsv(sv, FALSE);
889 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
891 require_pv("AnyDBM_File.pm");
893 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
894 DIE(aTHX_ "No dbm on this machine");
904 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
906 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
909 call_sv((SV*)GvCV(gv), G_SCALAR);
912 if (!sv_isobject(TOPs)) {
917 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
920 call_sv((SV*)GvCV(gv), G_SCALAR);
924 if (sv_isobject(TOPs)) {
925 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
926 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
948 struct timeval timebuf;
949 struct timeval *tbuf = &timebuf;
953 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
958 # if BYTEORDER & 0xf0000
959 # define ORDERBYTE (0x88888888 - BYTEORDER)
961 # define ORDERBYTE (0x4444 - BYTEORDER)
967 for (i = 1; i <= 3; i++) {
975 /* little endians can use vecs directly */
976 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
977 # if SELECT_MIN_BITS > 1
978 /* If SELECT_MIN_BITS is greater than one we most probably will want
979 * to align the sizes with SELECT_MIN_BITS/8 because for example
980 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
981 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
982 * on (sets/tests/clears bits) is 32 bits. */
983 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
985 growsize = sizeof(fd_set);
994 masksize = NFDBITS / NBBY;
996 masksize = sizeof(long); /* documented int, everyone seems to use long */
998 growsize = maxlen + (masksize - (maxlen % masksize));
999 Zero(&fd_sets[0], 4, char*);
1007 timebuf.tv_sec = (long)value;
1008 value -= (NV)timebuf.tv_sec;
1009 timebuf.tv_usec = (long)(value * 1000000.0);
1012 tbuf = Null(struct timeval*);
1014 for (i = 1; i <= 3; i++) {
1020 else if (!SvPOK(sv))
1021 SvPV_force(sv,n_a); /* force string conversion */
1024 Sv_Grow(sv, growsize);
1028 while (++j <= growsize) {
1032 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1034 New(403, fd_sets[i], growsize, char);
1035 for (offset = 0; offset < growsize; offset += masksize) {
1036 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1037 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1040 fd_sets[i] = SvPVX(sv);
1044 nfound = PerlSock_select(
1046 (Select_fd_set_t) fd_sets[1],
1047 (Select_fd_set_t) fd_sets[2],
1048 (Select_fd_set_t) fd_sets[3],
1050 for (i = 1; i <= 3; i++) {
1053 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1055 for (offset = 0; offset < growsize; offset += masksize) {
1056 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1057 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1059 Safefree(fd_sets[i]);
1066 if (GIMME == G_ARRAY && tbuf) {
1067 value = (NV)(timebuf.tv_sec) +
1068 (NV)(timebuf.tv_usec) / 1000000.0;
1069 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1070 sv_setnv(sv, value);
1074 DIE(aTHX_ "select not implemented");
1079 Perl_setdefout(pTHX_ GV *gv)
1082 (void)SvREFCNT_inc(gv);
1084 SvREFCNT_dec(PL_defoutgv);
1091 GV *newdefout, *egv;
1094 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1096 egv = GvEGV(PL_defoutgv);
1101 XPUSHs(&PL_sv_undef);
1103 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1104 if (gvp && *gvp == egv) {
1105 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1109 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1114 if (!GvIO(newdefout))
1115 gv_IOadd(newdefout);
1116 setdefout(newdefout);
1133 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1134 I32 gimme = GIMME_V;
1136 XPUSHs(SvTIED_obj((SV*)gv, mg));
1139 call_method("GETC", gimme);
1142 if (gimme == G_SCALAR)
1143 SvSetMagicSV_nosteal(TARG, TOPs);
1146 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1149 sv_setpv(TARG, " ");
1150 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1151 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1152 /* Find out how many bytes the char needs */
1153 Size_t len = UTF8SKIP(SvPVX(TARG));
1156 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1157 SvCUR_set(TARG,1+len);
1167 return pp_sysread();
1171 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1173 register PERL_CONTEXT *cx;
1174 I32 gimme = GIMME_V;
1175 AV* padlist = CvPADLIST(cv);
1176 SV** svp = AvARRAY(padlist);
1182 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1184 SAVEVPTR(PL_curpad);
1185 PL_curpad = AvARRAY((AV*)svp[1]);
1187 setdefout(gv); /* locally select filehandle so $% et al work */
1220 SV *tmpsv = sv_newmortal();
1221 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1222 name = SvPV_nolen(tmpsv);
1225 DIE(aTHX_ "Undefined format \"%s\" called", name);
1226 DIE(aTHX_ "Not a format reference");
1229 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1231 IoFLAGS(io) &= ~IOf_DIDTOP;
1232 return doform(cv,gv,PL_op->op_next);
1238 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1239 register IO *io = GvIOp(gv);
1240 PerlIO *ofp = IoOFP(io);
1244 register PERL_CONTEXT *cx;
1246 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1247 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1250 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1251 PL_formtarget != PL_toptarget)
1255 if (!IoTOP_GV(io)) {
1259 if (!IoTOP_NAME(io)) {
1260 if (!IoFMT_NAME(io))
1261 IoFMT_NAME(io) = savepv(GvNAME(gv));
1262 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1263 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1264 if ((topgv && GvFORM(topgv)) ||
1265 !gv_fetchpv("top",FALSE,SVt_PVFM))
1266 IoTOP_NAME(io) = savepv(SvPVX(topname));
1268 IoTOP_NAME(io) = savepv("top");
1270 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1271 if (!topgv || !GvFORM(topgv)) {
1272 IoLINES_LEFT(io) = 100000000;
1275 IoTOP_GV(io) = topgv;
1277 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1278 I32 lines = IoLINES_LEFT(io);
1279 char *s = SvPVX(PL_formtarget);
1280 if (lines <= 0) /* Yow, header didn't even fit!!! */
1282 while (lines-- > 0) {
1283 s = strchr(s, '\n');
1289 STRLEN save = SvCUR(PL_formtarget);
1290 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1291 do_print(PL_formtarget, ofp);
1292 SvCUR_set(PL_formtarget, save);
1293 sv_chop(PL_formtarget, s);
1294 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1297 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1298 do_print(PL_formfeed, ofp);
1299 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1301 PL_formtarget = PL_toptarget;
1302 IoFLAGS(io) |= IOf_DIDTOP;
1305 DIE(aTHX_ "bad top format reference");
1310 SV *sv = sv_newmortal();
1311 gv_efullname4(sv, fgv, Nullch, FALSE);
1312 name = SvPV_nolen(sv);
1315 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1318 DIE(aTHX_ "Undefined top format called");
1322 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1323 return doform(cv,gv,PL_op);
1327 POPBLOCK(cx,PL_curpm);
1333 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1335 /* integrate with report_evil_fh()? */
1338 SV* sv = sv_newmortal();
1339 gv_efullname4(sv, gv, Nullch, FALSE);
1340 name = SvPV_nolen(sv);
1343 Perl_warner(aTHX_ WARN_IO,
1344 "Filehandle %s opened only for input", name);
1346 Perl_warner(aTHX_ WARN_IO,
1347 "Filehandle opened only for input");
1349 else if (ckWARN(WARN_CLOSED))
1350 report_evil_fh(gv, io, PL_op->op_type);
1355 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1356 if (ckWARN(WARN_IO))
1357 Perl_warner(aTHX_ WARN_IO, "page overflow");
1359 if (!do_print(PL_formtarget, fp))
1362 FmLINES(PL_formtarget) = 0;
1363 SvCUR_set(PL_formtarget, 0);
1364 *SvEND(PL_formtarget) = '\0';
1365 if (IoFLAGS(io) & IOf_FLUSH)
1366 (void)PerlIO_flush(fp);
1371 PL_formtarget = PL_bodytarget;
1373 return pop_return();
1378 dSP; dMARK; dORIGMARK;
1385 if (PL_op->op_flags & OPf_STACKED)
1390 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1391 if (MARK == ORIGMARK) {
1394 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1398 *MARK = SvTIED_obj((SV*)gv, mg);
1401 call_method("PRINTF", G_SCALAR);
1404 MARK = ORIGMARK + 1;
1411 if (!(io = GvIO(gv))) {
1412 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1413 report_evil_fh(gv, io, PL_op->op_type);
1414 SETERRNO(EBADF,RMS$_IFI);
1417 else if (!(fp = IoOFP(io))) {
1418 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1419 /* integrate with report_evil_fh()? */
1423 gv_efullname4(sv, gv, Nullch, FALSE);
1424 name = SvPV_nolen(sv);
1427 Perl_warner(aTHX_ WARN_IO,
1428 "Filehandle %s opened only for input", name);
1430 Perl_warner(aTHX_ WARN_IO,
1431 "Filehandle opened only for input");
1433 else if (ckWARN(WARN_CLOSED))
1434 report_evil_fh(gv, io, PL_op->op_type);
1436 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1440 do_sprintf(sv, SP - MARK, MARK + 1);
1441 if (!do_print(sv, fp))
1444 if (IoFLAGS(io) & IOf_FLUSH)
1445 if (PerlIO_flush(fp) == EOF)
1456 PUSHs(&PL_sv_undef);
1477 /* Need TIEHANDLE method ? */
1479 tmps = SvPV(sv, len);
1480 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1481 IoLINES(GvIOp(gv)) = 0;
1485 PUSHs(&PL_sv_undef);
1492 dSP; dMARK; dORIGMARK; dTARGET;
1499 Sock_size_t bufsize;
1508 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1509 (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
1514 *MARK = SvTIED_obj((SV*)gv, mg);
1516 call_method("READ", G_SCALAR);
1529 sv_setpvn(bufsv, "", 0);
1530 length = SvIVx(*++MARK);
1533 offset = SvIVx(*++MARK);
1537 if (!io || !IoIFP(io))
1539 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1540 buffer = SvPVutf8_force(bufsv, blen);
1541 /* UTF8 may not have been set if they are all low bytes */
1545 buffer = SvPV_force(bufsv, blen);
1548 DIE(aTHX_ "Negative length");
1552 if (PL_op->op_type == OP_RECV) {
1553 char namebuf[MAXPATHLEN];
1554 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1555 bufsize = sizeof (struct sockaddr_in);
1557 bufsize = sizeof namebuf;
1559 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1563 buffer = SvGROW(bufsv, length+1);
1564 /* 'offset' means 'flags' here */
1565 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1566 (struct sockaddr *)namebuf, &bufsize);
1570 /* Bogus return without padding */
1571 bufsize = sizeof (struct sockaddr_in);
1573 SvCUR_set(bufsv, count);
1574 *SvEND(bufsv) = '\0';
1575 (void)SvPOK_only(bufsv);
1579 /* This should not be marked tainted if the fp is marked clean */
1580 if (!(IoFLAGS(io) & IOf_UNTAINT))
1581 SvTAINTED_on(bufsv);
1583 sv_setpvn(TARG, namebuf, bufsize);
1588 if (PL_op->op_type == OP_RECV)
1589 DIE(aTHX_ PL_no_sock_func, "recv");
1591 if (DO_UTF8(bufsv)) {
1592 /* offset adjust in characters not bytes */
1593 blen = sv_len_utf8(bufsv);
1597 DIE(aTHX_ "Offset outside string");
1600 if (DO_UTF8(bufsv)) {
1601 /* convert offset-as-chars to offset-as-bytes */
1602 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1605 bufsize = SvCUR(bufsv);
1606 buffer = SvGROW(bufsv, length+offset+1);
1607 if (offset > bufsize) { /* Zero any newly allocated space */
1608 Zero(buffer+bufsize, offset-bufsize, char);
1610 buffer = buffer + offset;
1612 if (PL_op->op_type == OP_SYSREAD) {
1613 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1614 if (IoTYPE(io) == IoTYPE_SOCKET) {
1615 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1621 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1626 #ifdef HAS_SOCKET__bad_code_maybe
1627 if (IoTYPE(io) == IoTYPE_SOCKET) {
1628 char namebuf[MAXPATHLEN];
1629 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1630 bufsize = sizeof (struct sockaddr_in);
1632 bufsize = sizeof namebuf;
1634 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1635 (struct sockaddr *)namebuf, &bufsize);
1640 count = PerlIO_read(IoIFP(io), buffer, length);
1641 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1642 if (count == 0 && PerlIO_error(IoIFP(io)))
1646 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1648 /* integrate with report_evil_fh()? */
1651 SV* sv = sv_newmortal();
1652 gv_efullname4(sv, gv, Nullch, FALSE);
1653 name = SvPV_nolen(sv);
1656 Perl_warner(aTHX_ WARN_IO,
1657 "Filehandle %s opened only for output", name);
1659 Perl_warner(aTHX_ WARN_IO,
1660 "Filehandle opened only for output");
1664 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1665 *SvEND(bufsv) = '\0';
1666 (void)SvPOK_only(bufsv);
1667 if (fp_utf8 && !IN_BYTES) {
1668 /* Look at utf8 we got back and count the characters */
1669 char *bend = buffer + count;
1670 while (buffer < bend) {
1671 STRLEN skip = UTF8SKIP(buffer);
1672 if (buffer+skip > bend) {
1673 /* partial character - try for rest of it */
1674 length = skip - (bend-buffer);
1675 offset = bend - SvPVX(bufsv);
1683 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1684 provided amount read (count) was what was requested (length)
1686 if (got < wanted && count == length) {
1687 length = (wanted-got);
1688 offset = bend - SvPVX(bufsv);
1691 /* return value is character count */
1696 /* This should not be marked tainted if the fp is marked clean */
1697 if (!(IoFLAGS(io) & IOf_UNTAINT))
1698 SvTAINTED_on(bufsv);
1711 int items = (SP - PL_stack_base) - TOPMARK;
1715 sv = sv_2mortal(newSViv(sv_len(*SP)));
1724 dSP; dMARK; dORIGMARK; dTARGET;
1735 if (PL_op->op_type == OP_SYSWRITE
1736 && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
1741 *MARK = SvTIED_obj((SV*)gv, mg);
1743 call_method("WRITE", G_SCALAR);
1754 #if Size_t_size > IVSIZE
1755 length = (Size_t)SvNVx(*++MARK);
1757 length = (Size_t)SvIVx(*++MARK);
1759 if ((SSize_t)length < 0)
1760 DIE(aTHX_ "Negative length");
1763 if (!io || !IoIFP(io)) {
1765 if (ckWARN(WARN_CLOSED))
1766 report_evil_fh(gv, io, PL_op->op_type);
1770 if (PerlIO_isutf8(IoIFP(io))) {
1771 buffer = SvPVutf8(bufsv, blen);
1775 sv_utf8_downgrade(bufsv, FALSE);
1776 buffer = SvPV(bufsv, blen);
1779 if (PL_op->op_type == OP_SYSWRITE) {
1781 if (DO_UTF8(bufsv)) {
1782 /* length and offset are in chars */
1783 blen = sv_len_utf8(bufsv);
1786 offset = SvIVx(*++MARK);
1789 DIE(aTHX_ "Offset outside string");
1791 } else if (offset >= blen && blen > 0)
1792 DIE(aTHX_ "Offset outside string");
1795 if (length > blen - offset)
1796 length = blen - offset;
1797 if (DO_UTF8(bufsv)) {
1798 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1799 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1802 buffer = buffer+offset;
1804 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1805 if (IoTYPE(io) == IoTYPE_SOCKET) {
1806 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1812 /* See the note at doio.c:do_print about filesize limits. --jhi */
1813 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1818 else if (SP > MARK) {
1821 sockbuf = SvPVx(*++MARK, mlen);
1822 /* length is really flags */
1823 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1824 length, (struct sockaddr *)sockbuf, mlen);
1827 /* length is really flags */
1828 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1831 DIE(aTHX_ PL_no_sock_func, "send");
1836 #if Size_t_size > IVSIZE
1850 return pp_sysread();
1860 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1862 gv = PL_last_in_gv = PL_argvgv;
1864 if (io && !IoIFP(io)) {
1865 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1867 IoFLAGS(io) &= ~IOf_START;
1868 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1869 sv_setpvn(GvSV(gv), "-", 1);
1870 SvSETMAGIC(GvSV(gv));
1872 else if (!nextargv(gv))
1877 gv = PL_last_in_gv; /* eof */
1880 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1882 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1884 XPUSHs(SvTIED_obj((SV*)gv, mg));
1887 call_method("EOF", G_SCALAR);
1893 PUSHs(boolSV(!gv || do_eof(gv)));
1906 gv = PL_last_in_gv = (GV*)POPs;
1908 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1910 XPUSHs(SvTIED_obj((SV*)gv, mg));
1913 call_method("TELL", G_SCALAR);
1919 #if LSEEKSIZE > IVSIZE
1920 PUSHn( do_tell(gv) );
1922 PUSHi( do_tell(gv) );
1929 return pp_sysseek();
1937 #if LSEEKSIZE > IVSIZE
1938 Off_t offset = (Off_t)SvNVx(POPs);
1940 Off_t offset = (Off_t)SvIVx(POPs);
1944 gv = PL_last_in_gv = (GV*)POPs;
1946 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1948 XPUSHs(SvTIED_obj((SV*)gv, mg));
1949 #if LSEEKSIZE > IVSIZE
1950 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1952 XPUSHs(sv_2mortal(newSViv(offset)));
1954 XPUSHs(sv_2mortal(newSViv(whence)));
1957 call_method("SEEK", G_SCALAR);
1963 if (PL_op->op_type == OP_SEEK)
1964 PUSHs(boolSV(do_seek(gv, offset, whence)));
1966 Off_t sought = do_sysseek(gv, offset, whence);
1968 PUSHs(&PL_sv_undef);
1971 #if LSEEKSIZE > IVSIZE
1976 : newSVpvn(zero_but_true, ZBTLEN);
1977 PUSHs(sv_2mortal(sv));
1986 /* There seems to be no consensus on the length type of truncate()
1987 * and ftruncate(), both off_t and size_t have supporters. In
1988 * general one would think that when using large files, off_t is
1989 * at least as wide as size_t, so using an off_t should be okay. */
1990 /* XXX Configure probe for the length type of *truncate() needed XXX */
1993 #if Size_t_size > IVSIZE
1998 /* Checking for length < 0 is problematic as the type might or
1999 * might not be signed: if it is not, clever compilers will moan. */
2000 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2002 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2008 if (PL_op->op_flags & OPf_SPECIAL) {
2009 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2012 TAINT_PROPER("truncate");
2013 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2016 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2018 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2020 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2029 if (SvTYPE(sv) == SVt_PVGV) {
2030 tmpgv = (GV*)sv; /* *main::FRED for example */
2033 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2034 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2038 name = SvPV(sv, n_a);
2039 TAINT_PROPER("truncate");
2041 if (truncate(name, len) < 0)
2047 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2050 if (my_chsize(tmpfd, len) < 0)
2052 PerlLIO_close(tmpfd);
2061 SETERRNO(EBADF,RMS$_IFI);
2065 DIE(aTHX_ "truncate not implemented");
2078 unsigned int func = POPu;
2079 int optype = PL_op->op_type;
2083 IO *io = gv ? GvIOn(gv) : 0;
2085 if (!io || !argsv || !IoIFP(io)) {
2086 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2087 report_evil_fh(gv, io, PL_op->op_type);
2088 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2092 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2095 s = SvPV_force(argsv, len);
2096 need = IOCPARM_LEN(func);
2098 s = Sv_Grow(argsv, need + 1);
2099 SvCUR_set(argsv, need);
2102 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2105 retval = SvIV(argsv);
2106 s = INT2PTR(char*,retval); /* ouch */
2109 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2111 if (optype == OP_IOCTL)
2113 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2115 DIE(aTHX_ "ioctl is not implemented");
2119 #if defined(OS2) && defined(__EMX__)
2120 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2122 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2125 DIE(aTHX_ "fcntl is not implemented");
2129 if (s[SvCUR(argsv)] != 17)
2130 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2131 PL_op_name[optype]);
2132 s[SvCUR(argsv)] = 0; /* put our null back */
2133 SvSETMAGIC(argsv); /* Assume it has changed */
2142 PUSHp(zero_but_true, ZBTLEN);
2162 if (gv && (io = GvIO(gv)))
2169 (void)PerlIO_flush(fp);
2170 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2173 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2174 report_evil_fh(gv, io, PL_op->op_type);
2176 SETERRNO(EBADF,RMS$_IFI);
2181 DIE(aTHX_ PL_no_func, "flock()");
2193 int protocol = POPi;
2199 io = gv ? GvIOn(gv) : NULL;
2202 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2203 report_evil_fh(gv, io, PL_op->op_type);
2205 do_close(gv, FALSE);
2206 SETERRNO(EBADF,LIB$_INVARG);
2211 do_close(gv, FALSE);
2213 TAINT_PROPER("socket");
2214 fd = PerlSock_socket(domain, type, protocol);
2217 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2218 IoOFP(io) = PerlIO_fdopen(fd, "w");
2219 IoTYPE(io) = IoTYPE_SOCKET;
2220 if (!IoIFP(io) || !IoOFP(io)) {
2221 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2222 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2223 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2226 #if defined(HAS_FCNTL) && defined(F_SETFD)
2227 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2231 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2236 DIE(aTHX_ PL_no_sock_func, "socket");
2242 #ifdef HAS_SOCKETPAIR
2248 int protocol = POPi;
2255 io1 = gv1 ? GvIOn(gv1) : NULL;
2256 io2 = gv2 ? GvIOn(gv2) : NULL;
2257 if (!gv1 || !gv2 || !io1 || !io2) {
2258 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2260 report_evil_fh(gv1, io1, PL_op->op_type);
2262 report_evil_fh(gv1, io2, PL_op->op_type);
2265 do_close(gv1, FALSE);
2267 do_close(gv2, FALSE);
2272 do_close(gv1, FALSE);
2274 do_close(gv2, FALSE);
2276 TAINT_PROPER("socketpair");
2277 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2279 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2280 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2281 IoTYPE(io1) = IoTYPE_SOCKET;
2282 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2283 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2284 IoTYPE(io2) = IoTYPE_SOCKET;
2285 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2286 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2287 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2288 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2289 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2290 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2291 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2294 #if defined(HAS_FCNTL) && defined(F_SETFD)
2295 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2296 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2301 DIE(aTHX_ PL_no_sock_func, "socketpair");
2309 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2310 extern void GETPRIVMODE();
2311 extern void GETUSERMODE();
2316 register IO *io = GvIOn(gv);
2320 int mpeprivmode = 0;
2323 if (!io || !IoIFP(io))
2326 addr = SvPV(addrsv, len);
2327 TAINT_PROPER("bind");
2328 #ifdef MPE /* Deal with MPE bind() peculiarities */
2329 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2330 /* The address *MUST* stupidly be zero. */
2331 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2332 /* PRIV mode is required to bind() to ports < 1024. */
2333 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2334 ((struct sockaddr_in *)addr)->sin_port > 0) {
2335 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2340 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2341 (struct sockaddr *)addr, len) >= 0)
2344 #ifdef MPE /* Switch back to USER mode */
2355 if (ckWARN(WARN_CLOSED))
2356 report_evil_fh(gv, io, PL_op->op_type);
2357 SETERRNO(EBADF,SS$_IVCHAN);
2360 DIE(aTHX_ PL_no_sock_func, "bind");
2371 register IO *io = GvIOn(gv);
2374 if (!io || !IoIFP(io))
2377 addr = SvPV(addrsv, len);
2378 TAINT_PROPER("connect");
2379 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2385 if (ckWARN(WARN_CLOSED))
2386 report_evil_fh(gv, io, PL_op->op_type);
2387 SETERRNO(EBADF,SS$_IVCHAN);
2390 DIE(aTHX_ PL_no_sock_func, "connect");
2400 register IO *io = gv ? GvIOn(gv) : NULL;
2402 if (!gv || !io || !IoIFP(io))
2405 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2411 if (ckWARN(WARN_CLOSED))
2412 report_evil_fh(gv, io, PL_op->op_type);
2413 SETERRNO(EBADF,SS$_IVCHAN);
2416 DIE(aTHX_ PL_no_sock_func, "listen");
2428 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2429 Sock_size_t len = sizeof saddr;
2441 if (!gstio || !IoIFP(gstio))
2446 do_close(ngv, FALSE);
2448 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2451 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2452 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2453 IoTYPE(nstio) = IoTYPE_SOCKET;
2454 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2455 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2456 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2457 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2460 #if defined(HAS_FCNTL) && defined(F_SETFD)
2461 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2465 len = sizeof saddr; /* EPOC somehow truncates info */
2466 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2469 PUSHp((char *)&saddr, len);
2473 if (ckWARN(WARN_CLOSED))
2474 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2475 SETERRNO(EBADF,SS$_IVCHAN);
2481 DIE(aTHX_ PL_no_sock_func, "accept");
2491 register IO *io = GvIOn(gv);
2493 if (!io || !IoIFP(io))
2496 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2500 if (ckWARN(WARN_CLOSED))
2501 report_evil_fh(gv, io, PL_op->op_type);
2502 SETERRNO(EBADF,SS$_IVCHAN);
2505 DIE(aTHX_ PL_no_sock_func, "shutdown");
2512 return pp_ssockopt();
2514 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2522 int optype = PL_op->op_type;
2525 unsigned int optname;
2531 if (optype == OP_GSOCKOPT)
2532 sv = sv_2mortal(NEWSV(22, 257));
2535 optname = (unsigned int) POPi;
2536 lvl = (unsigned int) POPi;
2540 if (!io || !IoIFP(io))
2543 fd = PerlIO_fileno(IoIFP(io));
2547 (void)SvPOK_only(sv);
2551 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2566 aint = (int)SvIV(sv);
2570 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2579 if (ckWARN(WARN_CLOSED))
2580 report_evil_fh(gv, io, optype);
2581 SETERRNO(EBADF,SS$_IVCHAN);
2586 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2593 return pp_getpeername();
2595 DIE(aTHX_ PL_no_sock_func, "getsockname");
2603 int optype = PL_op->op_type;
2607 register IO *io = GvIOn(gv);
2610 if (!io || !IoIFP(io))
2613 sv = sv_2mortal(NEWSV(22, 257));
2614 (void)SvPOK_only(sv);
2618 fd = PerlIO_fileno(IoIFP(io));
2620 case OP_GETSOCKNAME:
2621 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2624 case OP_GETPEERNAME:
2625 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2627 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2629 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";
2630 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2631 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2632 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2633 sizeof(u_short) + sizeof(struct in_addr))) {
2640 #ifdef BOGUS_GETNAME_RETURN
2641 /* Interactive Unix, getpeername() and getsockname()
2642 does not return valid namelen */
2643 if (len == BOGUS_GETNAME_RETURN)
2644 len = sizeof(struct sockaddr);
2652 if (ckWARN(WARN_CLOSED))
2653 report_evil_fh(gv, io, optype);
2654 SETERRNO(EBADF,SS$_IVCHAN);
2659 DIE(aTHX_ PL_no_sock_func, "getpeername");
2678 if (PL_op->op_flags & OPf_REF) {
2680 if (PL_op->op_type == OP_LSTAT) {
2681 if (PL_laststype != OP_LSTAT)
2682 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2683 if (ckWARN(WARN_IO) && gv != PL_defgv)
2684 Perl_warner(aTHX_ WARN_IO,
2685 "lstat() on filehandle %s", GvENAME(gv));
2686 /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
2690 if (gv != PL_defgv) {
2691 PL_laststype = OP_STAT;
2693 sv_setpv(PL_statname, "");
2694 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2695 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2697 if (PL_laststatval < 0) {
2698 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2699 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2705 if (SvTYPE(sv) == SVt_PVGV) {
2709 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2713 sv_setpv(PL_statname, SvPV(sv,n_a));
2716 PL_laststype = PL_op->op_type;
2717 if (PL_op->op_type == OP_LSTAT)
2718 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2721 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2722 if (PL_laststatval < 0) {
2723 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2724 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
2730 if (gimme != G_ARRAY) {
2731 if (gimme != G_VOID)
2732 XPUSHs(boolSV(max));
2738 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2739 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2740 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2741 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2742 #if Uid_t_size > IVSIZE
2743 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2745 # if Uid_t_sign <= 0
2746 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2748 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2751 #if Gid_t_size > IVSIZE
2752 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2754 # if Gid_t_sign <= 0
2755 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2757 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2760 #ifdef USE_STAT_RDEV
2761 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2763 PUSHs(sv_2mortal(newSVpvn("", 0)));
2765 #if Off_t_size > IVSIZE
2766 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2768 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2771 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2772 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2773 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2775 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2776 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2777 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2779 #ifdef USE_STAT_BLOCKS
2780 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2781 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2783 PUSHs(sv_2mortal(newSVpvn("", 0)));
2784 PUSHs(sv_2mortal(newSVpvn("", 0)));
2794 #if defined(HAS_ACCESS) && defined(R_OK)
2796 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2797 result = access(TOPpx, R_OK);
2812 if (cando(S_IRUSR, 0, &PL_statcache))
2821 #if defined(HAS_ACCESS) && defined(W_OK)
2823 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2824 result = access(TOPpx, W_OK);
2839 if (cando(S_IWUSR, 0, &PL_statcache))
2848 #if defined(HAS_ACCESS) && defined(X_OK)
2850 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2851 result = access(TOPpx, X_OK);
2866 if (cando(S_IXUSR, 0, &PL_statcache))
2875 #ifdef PERL_EFF_ACCESS_R_OK
2877 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2878 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2893 if (cando(S_IRUSR, 1, &PL_statcache))
2902 #ifdef PERL_EFF_ACCESS_W_OK
2904 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2905 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2920 if (cando(S_IWUSR, 1, &PL_statcache))
2929 #ifdef PERL_EFF_ACCESS_X_OK
2931 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2932 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2947 if (cando(S_IXUSR, 1, &PL_statcache))
2954 I32 result = my_stat();
2963 return pp_ftrowned();
2968 I32 result = my_stat();
2972 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2980 I32 result = my_stat();
2984 if (PL_statcache.st_size == 0)
2991 I32 result = my_stat();
2995 #if Off_t_size > IVSIZE
2996 PUSHn(PL_statcache.st_size);
2998 PUSHi(PL_statcache.st_size);
3005 I32 result = my_stat();
3009 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3015 I32 result = my_stat();
3019 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3025 I32 result = my_stat();
3029 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3035 I32 result = my_stat();
3039 if (S_ISSOCK(PL_statcache.st_mode))
3046 I32 result = my_stat();
3050 if (S_ISCHR(PL_statcache.st_mode))
3057 I32 result = my_stat();
3061 if (S_ISBLK(PL_statcache.st_mode))
3068 I32 result = my_stat();
3072 if (S_ISREG(PL_statcache.st_mode))
3079 I32 result = my_stat();
3083 if (S_ISDIR(PL_statcache.st_mode))
3090 I32 result = my_stat();
3094 if (S_ISFIFO(PL_statcache.st_mode))
3101 I32 result = my_lstat();
3105 if (S_ISLNK(PL_statcache.st_mode))
3114 I32 result = my_stat();
3118 if (PL_statcache.st_mode & S_ISUID)
3128 I32 result = my_stat();
3132 if (PL_statcache.st_mode & S_ISGID)
3142 I32 result = my_stat();
3146 if (PL_statcache.st_mode & S_ISVTX)
3157 char *tmps = Nullch;
3160 if (PL_op->op_flags & OPf_REF)
3162 else if (isGV(TOPs))
3164 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3165 gv = (GV*)SvRV(POPs);
3167 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3169 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3170 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3171 else if (tmps && isDIGIT(*tmps))
3175 if (PerlLIO_isatty(fd))
3180 #if defined(atarist) /* this will work with atariST. Configure will
3181 make guesses for other systems. */
3182 # define FILE_base(f) ((f)->_base)
3183 # define FILE_ptr(f) ((f)->_ptr)
3184 # define FILE_cnt(f) ((f)->_cnt)
3185 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3195 register STDCHAR *s;
3202 if (PL_op->op_flags & OPf_REF)
3204 else if (isGV(TOPs))
3206 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3207 gv = (GV*)SvRV(POPs);
3213 if (gv == PL_defgv) {
3215 io = GvIO(PL_statgv);
3218 goto really_filename;
3223 PL_laststatval = -1;
3224 sv_setpv(PL_statname, "");
3225 io = GvIO(PL_statgv);
3227 if (io && IoIFP(io)) {
3228 if (! PerlIO_has_base(IoIFP(io)))
3229 DIE(aTHX_ "-T and -B not implemented on filehandles");
3230 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3231 if (PL_laststatval < 0)
3233 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3234 if (PL_op->op_type == OP_FTTEXT)
3239 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3240 i = PerlIO_getc(IoIFP(io));
3242 (void)PerlIO_ungetc(IoIFP(io),i);
3244 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3246 len = PerlIO_get_bufsiz(IoIFP(io));
3247 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3248 /* sfio can have large buffers - limit to 512 */
3253 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3255 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3257 SETERRNO(EBADF,RMS$_IFI);
3265 PL_laststatval = -1;
3266 sv_setpv(PL_statname, SvPV(sv, n_a));
3267 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3268 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3269 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
3272 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3273 if (PL_laststatval < 0) {
3274 (void)PerlIO_close(fp);
3277 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3278 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3279 (void)PerlIO_close(fp);
3281 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3282 RETPUSHNO; /* special case NFS directories */
3283 RETPUSHYES; /* null file is anything */
3288 /* now scan s to look for textiness */
3289 /* XXX ASCII dependent code */
3291 #if defined(DOSISH) || defined(USEMYBINMODE)
3292 /* ignore trailing ^Z on short files */
3293 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3297 for (i = 0; i < len; i++, s++) {
3298 if (!*s) { /* null never allowed in text */
3303 else if (!(isPRINT(*s) || isSPACE(*s)))
3306 else if (*s & 128) {
3308 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3311 /* utf8 characters don't count as odd */
3312 if (UTF8_IS_START(*s)) {
3313 int ulen = UTF8SKIP(s);
3314 if (ulen < len - i) {
3316 for (j = 1; j < ulen; j++) {
3317 if (!UTF8_IS_CONTINUATION(s[j]))
3320 --ulen; /* loop does extra increment */
3330 *s != '\n' && *s != '\r' && *s != '\b' &&
3331 *s != '\t' && *s != '\f' && *s != 27)
3336 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3360 if (!tmps || !*tmps) {
3361 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
3363 tmps = SvPV(*svp, n_a);
3365 if (!tmps || !*tmps) {
3366 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
3368 tmps = SvPV(*svp, n_a);
3371 if (!tmps || !*tmps) {
3372 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
3374 tmps = SvPV(*svp, n_a);
3377 TAINT_PROPER("chdir");
3378 PUSHi( PerlDir_chdir(tmps) >= 0 );
3380 /* Clear the DEFAULT element of ENV so we'll get the new value
3382 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3390 dSP; dMARK; dTARGET;
3391 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3397 DIE(aTHX_ PL_no_func, "chown");
3407 TAINT_PROPER("chroot");
3408 PUSHi( chroot(tmps) >= 0 );
3411 DIE(aTHX_ PL_no_func, "chroot");
3417 dSP; dMARK; dTARGET;
3419 value = (I32)apply(PL_op->op_type, MARK, SP);
3427 dSP; dMARK; dTARGET;
3429 value = (I32)apply(PL_op->op_type, MARK, SP);
3437 dSP; dMARK; dTARGET;
3439 value = (I32)apply(PL_op->op_type, MARK, SP);
3451 char *tmps2 = POPpx;
3452 char *tmps = SvPV(TOPs, n_a);
3453 TAINT_PROPER("rename");
3455 anum = PerlLIO_rename(tmps, tmps2);
3457 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3458 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3461 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3462 (void)UNLINK(tmps2);
3463 if (!(anum = link(tmps, tmps2)))
3464 anum = UNLINK(tmps);
3478 char *tmps2 = POPpx;
3479 char *tmps = SvPV(TOPs, n_a);
3480 TAINT_PROPER("link");
3481 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3484 DIE(aTHX_ PL_no_func, "link");
3493 char *tmps2 = POPpx;
3494 char *tmps = SvPV(TOPs, n_a);
3495 TAINT_PROPER("symlink");
3496 SETi( symlink(tmps, tmps2) >= 0 );
3499 DIE(aTHX_ PL_no_func, "symlink");
3509 char buf[MAXPATHLEN];
3513 #ifndef INCOMPLETE_TAINTS
3517 len = readlink(tmps, buf, sizeof(buf) - 1);
3525 RETSETUNDEF; /* just pretend it's a normal file */
3529 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3531 S_dooneliner(pTHX_ char *cmd, char *filename)
3533 char *save_filename = filename;
3539 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3540 strcpy(cmdline, cmd);
3541 strcat(cmdline, " ");
3542 for (s = cmdline + strlen(cmdline); *filename; ) {
3547 myfp = PerlProc_popen(cmdline, "r");
3551 SV *tmpsv = sv_newmortal();
3552 /* Need to save/restore 'PL_rs' ?? */
3553 s = sv_gets(tmpsv, myfp, 0);
3554 (void)PerlProc_pclose(myfp);
3558 #ifdef HAS_SYS_ERRLIST
3563 /* you don't see this */
3565 #ifdef HAS_SYS_ERRLIST
3573 if (instr(s, errmsg)) {
3580 #define EACCES EPERM
3582 if (instr(s, "cannot make"))
3583 SETERRNO(EEXIST,RMS$_FEX);
3584 else if (instr(s, "existing file"))
3585 SETERRNO(EEXIST,RMS$_FEX);
3586 else if (instr(s, "ile exists"))
3587 SETERRNO(EEXIST,RMS$_FEX);
3588 else if (instr(s, "non-exist"))
3589 SETERRNO(ENOENT,RMS$_FNF);
3590 else if (instr(s, "does not exist"))
3591 SETERRNO(ENOENT,RMS$_FNF);
3592 else if (instr(s, "not empty"))
3593 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3594 else if (instr(s, "cannot access"))
3595 SETERRNO(EACCES,RMS$_PRV);
3597 SETERRNO(EPERM,RMS$_PRV);
3600 else { /* some mkdirs return no failure indication */
3601 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3602 if (PL_op->op_type == OP_RMDIR)
3607 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3632 tmps = SvPV(TOPs, len);
3633 /* Different operating and file systems take differently to
3634 * trailing slashes. According to POSIX 1003.1 1996 Edition
3635 * any number of trailing slashes should be allowed.
3636 * Thusly we snip them away so that even non-conforming
3637 * systems are happy. */
3638 /* We should probably do this "filtering" for all
3639 * the functions that expect (potentially) directory names:
3640 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3641 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3642 if (len > 1 && tmps[len-1] == '/') {
3643 while (tmps[len] == '/' && len > 1)
3645 tmps = savepvn(tmps, len);
3649 TAINT_PROPER("mkdir");
3651 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3653 SETi( dooneliner("mkdir", tmps) );
3654 oldumask = PerlLIO_umask(0);
3655 PerlLIO_umask(oldumask);
3656 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3670 TAINT_PROPER("rmdir");
3672 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3674 XPUSHi( dooneliner("rmdir", tmps) );
3679 /* Directory calls. */
3683 #if defined(Direntry_t) && defined(HAS_READDIR)
3686 char *dirname = POPpx;
3688 register IO *io = GvIOn(gv);
3694 PerlDir_close(IoDIRP(io));
3695 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3701 SETERRNO(EBADF,RMS$_DIR);
3704 DIE(aTHX_ PL_no_dir_func, "opendir");
3710 #if defined(Direntry_t) && defined(HAS_READDIR)
3712 #if !defined(I_DIRENT) && !defined(VMS)
3713 Direntry_t *readdir (DIR *);
3715 register Direntry_t *dp;
3717 register IO *io = GvIOn(gv);
3720 if (!io || !IoDIRP(io))
3723 if (GIMME == G_ARRAY) {
3725 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3727 sv = newSVpvn(dp->d_name, dp->d_namlen);
3729 sv = newSVpv(dp->d_name, 0);
3731 #ifndef INCOMPLETE_TAINTS
3732 if (!(IoFLAGS(io) & IOf_UNTAINT))
3735 XPUSHs(sv_2mortal(sv));
3739 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3742 sv = newSVpvn(dp->d_name, dp->d_namlen);
3744 sv = newSVpv(dp->d_name, 0);
3746 #ifndef INCOMPLETE_TAINTS
3747 if (!(IoFLAGS(io) & IOf_UNTAINT))
3750 XPUSHs(sv_2mortal(sv));
3756 SETERRNO(EBADF,RMS$_ISI);
3757 if (GIMME == G_ARRAY)
3762 DIE(aTHX_ PL_no_dir_func, "readdir");
3768 #if defined(HAS_TELLDIR) || defined(telldir)
3770 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3771 /* XXX netbsd still seemed to.
3772 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3773 --JHI 1999-Feb-02 */
3774 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3775 long telldir (DIR *);
3778 register IO *io = GvIOn(gv);
3780 if (!io || !IoDIRP(io))
3783 PUSHi( PerlDir_tell(IoDIRP(io)) );
3787 SETERRNO(EBADF,RMS$_ISI);
3790 DIE(aTHX_ PL_no_dir_func, "telldir");
3796 #if defined(HAS_SEEKDIR) || defined(seekdir)
3800 register IO *io = GvIOn(gv);
3802 if (!io || !IoDIRP(io))
3805 (void)PerlDir_seek(IoDIRP(io), along);
3810 SETERRNO(EBADF,RMS$_ISI);
3813 DIE(aTHX_ PL_no_dir_func, "seekdir");
3819 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3822 register IO *io = GvIOn(gv);
3824 if (!io || !IoDIRP(io))
3827 (void)PerlDir_rewind(IoDIRP(io));
3831 SETERRNO(EBADF,RMS$_ISI);
3834 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3840 #if defined(Direntry_t) && defined(HAS_READDIR)
3843 register IO *io = GvIOn(gv);
3845 if (!io || !IoDIRP(io))
3848 #ifdef VOID_CLOSEDIR
3849 PerlDir_close(IoDIRP(io));
3851 if (PerlDir_close(IoDIRP(io)) < 0) {
3852 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3861 SETERRNO(EBADF,RMS$_IFI);
3864 DIE(aTHX_ PL_no_dir_func, "closedir");
3868 /* Process control. */
3878 PERL_FLUSHALL_FOR_CHILD;
3884 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV)))
3885 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3886 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3891 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3896 PERL_FLUSHALL_FOR_CHILD;
3897 childpid = PerlProc_fork();
3903 DIE(aTHX_ PL_no_func, "fork");
3910 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3915 #ifdef PERL_OLD_SIGNALS
3916 childpid = wait4pid(-1, &argflags, 0);
3918 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3922 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3923 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3924 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3926 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3931 DIE(aTHX_ PL_no_func, "wait");
3937 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3945 #ifdef PERL_OLD_SIGNALS
3946 childpid = wait4pid(childpid, &argflags, optype);
3948 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
3952 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3953 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3954 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3956 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3961 DIE(aTHX_ PL_no_func, "waitpid");
3967 dSP; dMARK; dORIGMARK; dTARGET;
3974 if (SP - MARK == 1) {
3976 (void)SvPV_nolen(TOPs); /* stringify for taint check */
3978 TAINT_PROPER("system");
3981 PERL_FLUSHALL_FOR_CHILD;
3982 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
3986 Sigsave_t ihand,qhand; /* place to save signals during system() */
3988 if (PerlProc_pipe(pp) >= 0)
3990 while ((childpid = vfork()) == -1) {
3991 if (errno != EAGAIN) {
3996 PerlLIO_close(pp[0]);
3997 PerlLIO_close(pp[1]);
4005 PerlLIO_close(pp[1]);
4007 rsignal_save(SIGINT, SIG_IGN, &ihand);
4008 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4011 result = wait4pid(childpid, &status, 0);
4012 } while (result == -1 && errno == EINTR);
4014 (void)rsignal_restore(SIGINT, &ihand);
4015 (void)rsignal_restore(SIGQUIT, &qhand);
4017 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4018 do_execfree(); /* free any memory child malloced on vfork */
4024 while (n < sizeof(int)) {
4025 n1 = PerlLIO_read(pp[0],
4026 (void*)(((char*)&errkid)+n),
4032 PerlLIO_close(pp[0]);
4033 if (n) { /* Error */
4034 if (n != sizeof(int))
4035 DIE(aTHX_ "panic: kid popen errno read");
4036 errno = errkid; /* Propagate errno from kid */
4037 STATUS_CURRENT = -1;
4040 PUSHi(STATUS_CURRENT);
4044 PerlLIO_close(pp[0]);
4045 #if defined(HAS_FCNTL) && defined(F_SETFD)
4046 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4050 if (PL_op->op_flags & OPf_STACKED) {
4051 SV *really = *++MARK;
4052 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4054 else if (SP - MARK != 1)
4055 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4057 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4060 #else /* ! FORK or VMS or OS/2 */
4063 if (PL_op->op_flags & OPf_STACKED) {
4064 SV *really = *++MARK;
4065 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4067 else if (SP - MARK != 1)
4068 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4070 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4072 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4074 STATUS_NATIVE_SET(value);
4077 PUSHi(result ? value : STATUS_CURRENT);
4078 #endif /* !FORK or VMS */
4084 dSP; dMARK; dORIGMARK; dTARGET;
4088 PERL_FLUSHALL_FOR_CHILD;
4089 if (PL_op->op_flags & OPf_STACKED) {
4090 SV *really = *++MARK;
4091 value = (I32)do_aexec(really, MARK, SP);
4093 else if (SP - MARK != 1)
4095 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4099 (void ) do_aspawn(Nullsv, MARK, SP);
4103 value = (I32)do_aexec(Nullsv, MARK, SP);
4108 (void)SvPV_nolen(*SP); /* stringify for taint check */
4110 TAINT_PROPER("exec");
4113 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4116 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4119 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4124 #if !defined(HAS_FORK) && defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4137 dSP; dMARK; dTARGET;
4139 value = (I32)apply(PL_op->op_type, MARK, SP);
4144 DIE(aTHX_ PL_no_func, "kill");
4152 XPUSHi( getppid() );
4155 DIE(aTHX_ PL_no_func, "getppid");
4171 pgrp = (I32)BSD_GETPGRP(pid);
4173 if (pid != 0 && pid != PerlProc_getpid())
4174 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4180 DIE(aTHX_ PL_no_func, "getpgrp()");
4199 TAINT_PROPER("setpgrp");
4201 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4203 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4204 || (pid != 0 && pid != PerlProc_getpid()))
4206 DIE(aTHX_ "setpgrp can't take arguments");
4208 SETi( setpgrp() >= 0 );
4209 #endif /* USE_BSDPGRP */
4212 DIE(aTHX_ PL_no_func, "setpgrp()");
4218 #ifdef HAS_GETPRIORITY
4222 SETi( getpriority(which, who) );
4225 DIE(aTHX_ PL_no_func, "getpriority()");
4231 #ifdef HAS_SETPRIORITY
4236 TAINT_PROPER("setpriority");
4237 SETi( setpriority(which, who, niceval) >= 0 );
4240 DIE(aTHX_ PL_no_func, "setpriority()");
4250 XPUSHn( time(Null(Time_t*)) );
4252 XPUSHi( time(Null(Time_t*)) );
4257 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4258 to HZ. Probably. For now, assume that if the system
4259 defines HZ, it does so correctly. (Will this break
4261 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4262 it's supported. --AD 9/96.
4279 (void)PerlProc_times(&PL_timesbuf);
4281 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4282 /* struct tms, though same data */
4286 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4287 if (GIMME == G_ARRAY) {
4288 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4289 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4290 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4294 DIE(aTHX_ "times not implemented");
4295 #endif /* HAS_TIMES */
4308 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4309 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4310 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4316 when = (Time_t)SvNVx(POPs);
4318 when = (Time_t)SvIVx(POPs);
4321 if (PL_op->op_type == OP_LOCALTIME)
4322 tmbuf = localtime(&when);
4324 tmbuf = gmtime(&when);
4328 if (GIMME != G_ARRAY) {
4332 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4333 dayname[tmbuf->tm_wday],
4334 monname[tmbuf->tm_mon],
4339 tmbuf->tm_year + 1900);
4340 PUSHs(sv_2mortal(tsv));
4343 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4344 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4345 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4346 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4347 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4348 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4349 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4350 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4351 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4362 anum = alarm((unsigned int)anum);
4369 DIE(aTHX_ PL_no_func, "alarm");
4380 (void)time(&lasttime);
4385 PerlProc_sleep((unsigned int)duration);
4388 XPUSHi(when - lasttime);
4392 /* Shared memory. */
4406 return pp_shmwrite();
4411 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4412 dSP; dMARK; dTARGET;
4413 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4422 /* Message passing. */
4436 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4437 dSP; dMARK; dTARGET;
4438 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4449 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4450 dSP; dMARK; dTARGET;
4451 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4464 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4465 dSP; dMARK; dTARGET;
4466 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4473 DIE(aTHX_ "System V IPC is not implemented on this machine");
4479 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4480 dSP; dMARK; dTARGET;
4481 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4489 PUSHp(zero_but_true, ZBTLEN);
4499 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4500 dSP; dMARK; dTARGET;
4501 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4510 /* Get system info. */
4514 #ifdef HAS_GETHOSTBYNAME
4515 return pp_ghostent();
4517 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4523 #ifdef HAS_GETHOSTBYADDR
4524 return pp_ghostent();
4526 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4532 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4534 I32 which = PL_op->op_type;
4535 register char **elem;
4537 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4538 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4539 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
4540 struct hostent *PerlSock_gethostent(void);
4542 struct hostent *hent;
4547 if (which == OP_GHBYNAME)
4548 #ifdef HAS_GETHOSTBYNAME
4549 hent = PerlSock_gethostbyname(POPpbytex);
4551 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4553 else if (which == OP_GHBYADDR) {
4554 #ifdef HAS_GETHOSTBYADDR
4555 int addrtype = POPi;
4558 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4560 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4562 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4566 #ifdef HAS_GETHOSTENT
4567 hent = PerlSock_gethostent();
4569 DIE(aTHX_ PL_no_sock_func, "gethostent");
4572 #ifdef HOST_NOT_FOUND
4574 STATUS_NATIVE_SET(h_errno);
4577 if (GIMME != G_ARRAY) {
4578 PUSHs(sv = sv_newmortal());
4580 if (which == OP_GHBYNAME) {
4582 sv_setpvn(sv, hent->h_addr, hent->h_length);
4585 sv_setpv(sv, (char*)hent->h_name);
4591 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4592 sv_setpv(sv, (char*)hent->h_name);
4593 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4594 for (elem = hent->h_aliases; elem && *elem; elem++) {
4595 sv_catpv(sv, *elem);
4597 sv_catpvn(sv, " ", 1);
4599 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4600 sv_setiv(sv, (IV)hent->h_addrtype);
4601 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4602 len = hent->h_length;
4603 sv_setiv(sv, (IV)len);
4605 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4606 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4607 sv_setpvn(sv, *elem, len);
4610 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4612 sv_setpvn(sv, hent->h_addr, len);
4617 DIE(aTHX_ PL_no_sock_func, "gethostent");
4623 #ifdef HAS_GETNETBYNAME
4624 return pp_gnetent();
4626 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4632 #ifdef HAS_GETNETBYADDR
4633 return pp_gnetent();
4635 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4641 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4643 I32 which = PL_op->op_type;
4644 register char **elem;
4646 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4647 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4648 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4649 struct netent *PerlSock_getnetent(void);
4651 struct netent *nent;
4654 if (which == OP_GNBYNAME)
4655 #ifdef HAS_GETNETBYNAME
4656 nent = PerlSock_getnetbyname(POPpbytex);
4658 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4660 else if (which == OP_GNBYADDR) {
4661 #ifdef HAS_GETNETBYADDR
4662 int addrtype = POPi;
4663 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4664 nent = PerlSock_getnetbyaddr(addr, addrtype);
4666 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4670 #ifdef HAS_GETNETENT
4671 nent = PerlSock_getnetent();
4673 DIE(aTHX_ PL_no_sock_func, "getnetent");
4677 if (GIMME != G_ARRAY) {
4678 PUSHs(sv = sv_newmortal());
4680 if (which == OP_GNBYNAME)
4681 sv_setiv(sv, (IV)nent->n_net);
4683 sv_setpv(sv, nent->n_name);
4689 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4690 sv_setpv(sv, nent->n_name);
4691 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4692 for (elem = nent->n_aliases; elem && *elem; elem++) {
4693 sv_catpv(sv, *elem);
4695 sv_catpvn(sv, " ", 1);
4697 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4698 sv_setiv(sv, (IV)nent->n_addrtype);
4699 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4700 sv_setiv(sv, (IV)nent->n_net);
4705 DIE(aTHX_ PL_no_sock_func, "getnetent");
4711 #ifdef HAS_GETPROTOBYNAME
4712 return pp_gprotoent();
4714 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4720 #ifdef HAS_GETPROTOBYNUMBER
4721 return pp_gprotoent();
4723 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4729 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4731 I32 which = PL_op->op_type;
4732 register char **elem;
4734 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4735 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4736 struct protoent *PerlSock_getprotobynumber(int);
4737 struct protoent *PerlSock_getprotoent(void);
4739 struct protoent *pent;
4742 if (which == OP_GPBYNAME)
4743 #ifdef HAS_GETPROTOBYNAME
4744 pent = PerlSock_getprotobyname(POPpbytex);
4746 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4748 else if (which == OP_GPBYNUMBER)
4749 #ifdef HAS_GETPROTOBYNUMBER
4750 pent = PerlSock_getprotobynumber(POPi);
4752 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4755 #ifdef HAS_GETPROTOENT
4756 pent = PerlSock_getprotoent();
4758 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4762 if (GIMME != G_ARRAY) {
4763 PUSHs(sv = sv_newmortal());
4765 if (which == OP_GPBYNAME)
4766 sv_setiv(sv, (IV)pent->p_proto);
4768 sv_setpv(sv, pent->p_name);
4774 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4775 sv_setpv(sv, pent->p_name);
4776 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4777 for (elem = pent->p_aliases; elem && *elem; elem++) {
4778 sv_catpv(sv, *elem);
4780 sv_catpvn(sv, " ", 1);
4782 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4783 sv_setiv(sv, (IV)pent->p_proto);
4788 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4794 #ifdef HAS_GETSERVBYNAME
4795 return pp_gservent();
4797 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4803 #ifdef HAS_GETSERVBYPORT
4804 return pp_gservent();
4806 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4812 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4814 I32 which = PL_op->op_type;
4815 register char **elem;
4817 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4818 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4819 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4820 struct servent *PerlSock_getservent(void);
4822 struct servent *sent;
4825 if (which == OP_GSBYNAME) {
4826 #ifdef HAS_GETSERVBYNAME
4827 char *proto = POPpbytex;
4828 char *name = POPpbytex;
4830 if (proto && !*proto)
4833 sent = PerlSock_getservbyname(name, proto);
4835 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4838 else if (which == OP_GSBYPORT) {
4839 #ifdef HAS_GETSERVBYPORT
4840 char *proto = POPpbytex;
4841 unsigned short port = POPu;
4844 port = PerlSock_htons(port);
4846 sent = PerlSock_getservbyport(port, proto);
4848 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4852 #ifdef HAS_GETSERVENT
4853 sent = PerlSock_getservent();
4855 DIE(aTHX_ PL_no_sock_func, "getservent");
4859 if (GIMME != G_ARRAY) {
4860 PUSHs(sv = sv_newmortal());
4862 if (which == OP_GSBYNAME) {
4864 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4866 sv_setiv(sv, (IV)(sent->s_port));
4870 sv_setpv(sv, sent->s_name);
4876 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4877 sv_setpv(sv, sent->s_name);
4878 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4879 for (elem = sent->s_aliases; elem && *elem; elem++) {
4880 sv_catpv(sv, *elem);
4882 sv_catpvn(sv, " ", 1);
4884 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4886 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4888 sv_setiv(sv, (IV)(sent->s_port));
4890 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4891 sv_setpv(sv, sent->s_proto);
4896 DIE(aTHX_ PL_no_sock_func, "getservent");
4902 #ifdef HAS_SETHOSTENT
4904 PerlSock_sethostent(TOPi);
4907 DIE(aTHX_ PL_no_sock_func, "sethostent");
4913 #ifdef HAS_SETNETENT
4915 PerlSock_setnetent(TOPi);
4918 DIE(aTHX_ PL_no_sock_func, "setnetent");
4924 #ifdef HAS_SETPROTOENT
4926 PerlSock_setprotoent(TOPi);
4929 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4935 #ifdef HAS_SETSERVENT
4937 PerlSock_setservent(TOPi);
4940 DIE(aTHX_ PL_no_sock_func, "setservent");
4946 #ifdef HAS_ENDHOSTENT
4948 PerlSock_endhostent();
4952 DIE(aTHX_ PL_no_sock_func, "endhostent");
4958 #ifdef HAS_ENDNETENT
4960 PerlSock_endnetent();
4964 DIE(aTHX_ PL_no_sock_func, "endnetent");
4970 #ifdef HAS_ENDPROTOENT
4972 PerlSock_endprotoent();
4976 DIE(aTHX_ PL_no_sock_func, "endprotoent");
4982 #ifdef HAS_ENDSERVENT
4984 PerlSock_endservent();
4988 DIE(aTHX_ PL_no_sock_func, "endservent");
4997 DIE(aTHX_ PL_no_func, "getpwnam");
5006 DIE(aTHX_ PL_no_func, "getpwuid");
5014 I32 which = PL_op->op_type;
5017 struct passwd *pwent = NULL;
5019 * We currently support only the SysV getsp* shadow password interface.
5020 * The interface is declared in <shadow.h> and often one needs to link
5021 * with -lsecurity or some such.
5022 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5025 * AIX getpwnam() is clever enough to return the encrypted password
5026 * only if the caller (euid?) is root.
5028 * There are at least two other shadow password APIs. Many platforms
5029 * seem to contain more than one interface for accessing the shadow
5030 * password databases, possibly for compatibility reasons.
5031 * The getsp*() is by far he simplest one, the other two interfaces
5032 * are much more complicated, but also very similar to each other.
5037 * struct pr_passwd *getprpw*();
5038 * The password is in
5039 * char getprpw*(...).ufld.fd_encrypt[]
5040 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5045 * struct es_passwd *getespw*();
5046 * The password is in
5047 * char *(getespw*(...).ufld.fd_encrypt)
5048 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5050 * Mention I_PROT here so that Configure probes for it.
5052 * In HP-UX for getprpw*() the manual page claims that one should include
5053 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5054 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5055 * and pp_sys.c already includes <shadow.h> if there is such.
5057 * Note that <sys/security.h> is already probed for, but currently
5058 * it is only included in special cases.
5060 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5061 * be preferred interface, even though also the getprpw*() interface
5062 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5063 * One also needs to call set_auth_parameters() in main() before
5064 * doing anything else, whether one is using getespw*() or getprpw*().
5066 * Note that accessing the shadow databases can be magnitudes
5067 * slower than accessing the standard databases.
5074 pwent = getpwnam(POPpbytex);
5077 pwent = getpwuid((Uid_t)POPi);
5080 # ifdef HAS_GETPWENT
5083 DIE(aTHX_ PL_no_func, "getpwent");
5089 if (GIMME != G_ARRAY) {
5090 PUSHs(sv = sv_newmortal());
5092 if (which == OP_GPWNAM)
5093 # if Uid_t_sign <= 0
5094 sv_setiv(sv, (IV)pwent->pw_uid);
5096 sv_setuv(sv, (UV)pwent->pw_uid);
5099 sv_setpv(sv, pwent->pw_name);
5105 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5106 sv_setpv(sv, pwent->pw_name);
5108 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5110 /* If we have getspnam(), we try to dig up the shadow
5111 * password. If we are underprivileged, the shadow
5112 * interface will set the errno to EACCES or similar,
5113 * and return a null pointer. If this happens, we will
5114 * use the dummy password (usually "*" or "x") from the
5115 * standard password database.
5117 * In theory we could skip the shadow call completely
5118 * if euid != 0 but in practice we cannot know which
5119 * security measures are guarding the shadow databases
5120 * on a random platform.
5122 * Resist the urge to use additional shadow interfaces.
5123 * Divert the urge to writing an extension instead.
5126 # ifdef HAS_GETSPNAM
5128 struct spwd *spwent;
5129 int saverrno; /* Save and restore errno so that
5130 * underprivileged attempts seem
5131 * to have never made the unsccessful
5132 * attempt to retrieve the shadow password. */
5135 spwent = getspnam(pwent->pw_name);
5137 if (spwent && spwent->sp_pwdp)
5138 sv_setpv(sv, spwent->sp_pwdp);
5142 if (!SvPOK(sv)) /* Use the standard password, then. */
5143 sv_setpv(sv, pwent->pw_passwd);
5146 # ifndef INCOMPLETE_TAINTS
5147 /* passwd is tainted because user himself can diddle with it.
5148 * admittedly not much and in a very limited way, but nevertheless. */
5152 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5153 # if Uid_t_sign <= 0
5154 sv_setiv(sv, (IV)pwent->pw_uid);
5156 sv_setuv(sv, (UV)pwent->pw_uid);
5159 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5160 # if Uid_t_sign <= 0
5161 sv_setiv(sv, (IV)pwent->pw_gid);
5163 sv_setuv(sv, (UV)pwent->pw_gid);
5165 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5166 * because of the poor interface of the Perl getpw*(),
5167 * not because there's some standard/convention saying so.
5168 * A better interface would have been to return a hash,
5169 * but we are accursed by our history, alas. --jhi. */
5170 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5172 sv_setiv(sv, (IV)pwent->pw_change);
5175 sv_setiv(sv, (IV)pwent->pw_quota);
5178 sv_setpv(sv, pwent->pw_age);
5183 /* pw_class and pw_comment are mutually exclusive--.
5184 * see the above note for pw_change, pw_quota, and pw_age. */
5185 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5187 sv_setpv(sv, pwent->pw_class);
5190 sv_setpv(sv, pwent->pw_comment);
5194 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5196 sv_setpv(sv, pwent->pw_gecos);
5198 # ifndef INCOMPLETE_TAINTS
5199 /* pw_gecos is tainted because user himself can diddle with it. */
5203 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5204 sv_setpv(sv, pwent->pw_dir);
5206 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5207 sv_setpv(sv, pwent->pw_shell);
5208 # ifndef INCOMPLETE_TAINTS
5209 /* pw_shell is tainted because user himself can diddle with it. */
5214 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5215 sv_setiv(sv, (IV)pwent->pw_expire);
5220 DIE(aTHX_ PL_no_func, "getpwent");
5226 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5231 DIE(aTHX_ PL_no_func, "setpwent");
5237 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5242 DIE(aTHX_ PL_no_func, "endpwent");
5251 DIE(aTHX_ PL_no_func, "getgrnam");
5260 DIE(aTHX_ PL_no_func, "getgrgid");
5268 I32 which = PL_op->op_type;
5269 register char **elem;
5271 struct group *grent;
5274 if (which == OP_GGRNAM)
5275 grent = (struct group *)getgrnam(POPpbytex);
5276 else if (which == OP_GGRGID)
5277 grent = (struct group *)getgrgid(POPi);
5280 grent = (struct group *)getgrent();
5282 DIE(aTHX_ PL_no_func, "getgrent");
5286 if (GIMME != G_ARRAY) {
5287 PUSHs(sv = sv_newmortal());
5289 if (which == OP_GGRNAM)
5290 sv_setiv(sv, (IV)grent->gr_gid);
5292 sv_setpv(sv, grent->gr_name);
5298 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5299 sv_setpv(sv, grent->gr_name);
5301 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5303 sv_setpv(sv, grent->gr_passwd);
5306 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5307 sv_setiv(sv, (IV)grent->gr_gid);
5309 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5310 for (elem = grent->gr_mem; elem && *elem; elem++) {
5311 sv_catpv(sv, *elem);
5313 sv_catpvn(sv, " ", 1);
5319 DIE(aTHX_ PL_no_func, "getgrent");
5325 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5330 DIE(aTHX_ PL_no_func, "setgrent");
5336 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5341 DIE(aTHX_ PL_no_func, "endgrent");
5351 if (!(tmps = PerlProc_getlogin()))
5353 PUSHp(tmps, strlen(tmps));
5356 DIE(aTHX_ PL_no_func, "getlogin");
5360 /* Miscellaneous. */
5365 dSP; dMARK; dORIGMARK; dTARGET;
5366 register I32 items = SP - MARK;
5367 unsigned long a[20];
5373 while (++MARK <= SP) {
5374 if (SvTAINTED(*MARK)) {
5380 TAINT_PROPER("syscall");
5383 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5384 * or where sizeof(long) != sizeof(char*). But such machines will
5385 * not likely have syscall implemented either, so who cares?
5387 while (++MARK <= SP) {
5388 if (SvNIOK(*MARK) || !i)
5389 a[i++] = SvIV(*MARK);
5390 else if (*MARK == &PL_sv_undef)
5393 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5399 DIE(aTHX_ "Too many args to syscall");
5401 DIE(aTHX_ "Too few args to syscall");
5403 retval = syscall(a[0]);
5406 retval = syscall(a[0],a[1]);
5409 retval = syscall(a[0],a[1],a[2]);
5412 retval = syscall(a[0],a[1],a[2],a[3]);
5415 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5418 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5421 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5424 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5428 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5431 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5434 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5438 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5442 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5446 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5447 a[10],a[11],a[12],a[13]);
5449 #endif /* atarist */
5455 DIE(aTHX_ PL_no_func, "syscall");
5459 #ifdef FCNTL_EMULATE_FLOCK
5461 /* XXX Emulate flock() with fcntl().
5462 What's really needed is a good file locking module.
5466 fcntl_emulate_flock(int fd, int operation)
5470 switch (operation & ~LOCK_NB) {
5472 flock.l_type = F_RDLCK;
5475 flock.l_type = F_WRLCK;
5478 flock.l_type = F_UNLCK;
5484 flock.l_whence = SEEK_SET;
5485 flock.l_start = flock.l_len = (Off_t)0;
5487 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5490 #endif /* FCNTL_EMULATE_FLOCK */
5492 #ifdef LOCKF_EMULATE_FLOCK
5494 /* XXX Emulate flock() with lockf(). This is just to increase
5495 portability of scripts. The calls are not completely
5496 interchangeable. What's really needed is a good file
5500 /* The lockf() constants might have been defined in <unistd.h>.
5501 Unfortunately, <unistd.h> causes troubles on some mixed
5502 (BSD/POSIX) systems, such as SunOS 4.1.3.
5504 Further, the lockf() constants aren't POSIX, so they might not be
5505 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5506 just stick in the SVID values and be done with it. Sigh.
5510 # define F_ULOCK 0 /* Unlock a previously locked region */
5513 # define F_LOCK 1 /* Lock a region for exclusive use */
5516 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5519 # define F_TEST 3 /* Test a region for other processes locks */
5523 lockf_emulate_flock(int fd, int operation)
5529 /* flock locks entire file so for lockf we need to do the same */
5531 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5532 if (pos > 0) /* is seekable and needs to be repositioned */
5533 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5534 pos = -1; /* seek failed, so don't seek back afterwards */
5537 switch (operation) {
5539 /* LOCK_SH - get a shared lock */
5541 /* LOCK_EX - get an exclusive lock */
5543 i = lockf (fd, F_LOCK, 0);
5546 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5547 case LOCK_SH|LOCK_NB:
5548 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5549 case LOCK_EX|LOCK_NB:
5550 i = lockf (fd, F_TLOCK, 0);
5552 if ((errno == EAGAIN) || (errno == EACCES))
5553 errno = EWOULDBLOCK;
5556 /* LOCK_UN - unlock (non-blocking is a no-op) */
5558 case LOCK_UN|LOCK_NB:
5559 i = lockf (fd, F_ULOCK, 0);
5562 /* Default - can't decipher operation */
5569 if (pos > 0) /* need to restore position of the handle */
5570 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5575 #endif /* LOCKF_EMULATE_FLOCK */