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>
54 # include <sys/select.h>
58 /* XXX Configure test needed.
59 h_errno might not be a simple 'int', especially for multi-threaded
60 applications, see "extern int errno in perl.h". Creating such
61 a test requires taking into account the differences between
62 compiling multithreaded and singlethreaded ($ccflags et al).
63 HOST_NOT_FOUND is typically defined in <netdb.h>.
65 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
74 struct passwd *getpwnam (char *);
75 struct passwd *getpwuid (Uid_t);
79 struct passwd *getpwent (void);
87 struct group *getgrnam (char *);
88 struct group *getgrgid (Gid_t);
91 struct group *getgrent (void);
96 # if defined(_MSC_VER) || defined(__MINGW32__)
97 # include <sys/utime.h>
103 /* Put this after #includes because fork and vfork prototypes may conflict. */
109 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
112 # define my_chsize PerlLIO_chsize
117 #else /* no flock() */
119 /* fcntl.h might not have been included, even if it exists, because
120 the current Configure only sets I_FCNTL if it's needed to pick up
121 the *_OK constants. Make sure it has been included before testing
122 the fcntl() locking constants. */
123 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
127 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
128 # define FLOCK fcntl_emulate_flock
129 # define FCNTL_EMULATE_FLOCK
130 # else /* no flock() or fcntl(F_SETLK,...) */
132 # define FLOCK lockf_emulate_flock
133 # define LOCKF_EMULATE_FLOCK
135 # endif /* no flock() or fcntl(F_SETLK,...) */
138 static int FLOCK (int, int);
141 * These are the flock() constants. Since this sytems doesn't have
142 * flock(), the values of the constants are probably not available.
156 # endif /* emulating flock() */
158 #endif /* no flock() */
161 static char zero_but_true[ZBTLEN + 1] = "0 but true";
163 #if defined(I_SYS_ACCESS) && !defined(R_OK)
164 # include <sys/access.h>
167 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
168 # define FD_CLOEXEC 1 /* NeXT needs this */
171 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
172 #undef PERL_EFF_ACCESS_W_OK
173 #undef PERL_EFF_ACCESS_X_OK
175 /* F_OK unused: if stat() cannot find it... */
177 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
178 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
179 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
180 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
181 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
184 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
185 # ifdef I_SYS_SECURITY
186 # include <sys/security.h>
190 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
191 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
192 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
195 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
196 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
197 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
201 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
203 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
204 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
205 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
208 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
209 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
210 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
213 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
215 Uid_t ruid = getuid();
216 Uid_t euid = geteuid();
217 Gid_t rgid = getgid();
218 Gid_t egid = getegid();
222 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
223 Perl_croak(aTHX_ "switching effective uid is not implemented");
226 if (setreuid(euid, ruid))
229 if (setresuid(euid, ruid, (Uid_t)-1))
232 Perl_croak(aTHX_ "entering effective uid failed");
235 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
236 Perl_croak(aTHX_ "switching effective gid is not implemented");
239 if (setregid(egid, rgid))
242 if (setresgid(egid, rgid, (Gid_t)-1))
245 Perl_croak(aTHX_ "entering effective gid failed");
248 res = access(path, mode);
251 if (setreuid(ruid, euid))
254 if (setresuid(ruid, euid, (Uid_t)-1))
257 Perl_croak(aTHX_ "leaving effective uid failed");
260 if (setregid(rgid, egid))
263 if (setresgid(rgid, egid, (Gid_t)-1))
266 Perl_croak(aTHX_ "leaving effective gid failed");
271 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
272 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
273 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
276 #if !defined(PERL_EFF_ACCESS_R_OK)
278 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
280 Perl_croak(aTHX_ "switching effective uid is not implemented");
296 if (PL_op->op_private & OPpOPEN_IN_RAW)
298 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
300 fp = PerlProc_popen(tmps, mode);
303 if (PL_curcop->cop_io) {
304 type = SvPV_nolen(PL_curcop->cop_io);
307 PerlIO_apply_layers(aTHX_ fp,mode,type);
309 if (gimme == G_VOID) {
311 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
315 else if (gimme == G_SCALAR) {
316 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
317 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
328 if (sv_gets(sv, fp, 0) == Nullch) {
332 XPUSHs(sv_2mortal(sv));
333 if (SvLEN(sv) - SvCUR(sv) > 20) {
334 SvLEN_set(sv, SvCUR(sv)+1);
335 Renew(SvPVX(sv), SvLEN(sv), char);
340 STATUS_NATIVE_SET(PerlProc_pclose(fp));
341 TAINT; /* "I believe that this is not gratuitous!" */
344 STATUS_NATIVE_SET(-1);
345 if (gimme == G_SCALAR)
355 tryAMAGICunTARGET(iter, -1);
357 /* Note that we only ever get here if File::Glob fails to load
358 * without at the same time croaking, for some reason, or if
359 * perl was built with PERL_EXTERNAL_GLOB */
366 * The external globbing program may use things we can't control,
367 * so for security reasons we must assume the worst.
370 taint_proper(PL_no_security, "glob");
374 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
375 PL_last_in_gv = (GV*)*PL_stack_sp--;
377 SAVESPTR(PL_rs); /* This is not permanent, either. */
378 PL_rs = sv_2mortal(newSVpvn("\000", 1));
381 *SvPVX(PL_rs) = '\n';
385 result = do_readline();
390 #if 0 /* XXX never used! */
394 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
395 return do_readline();
401 PL_last_in_gv = cGVOP_gv;
402 return do_readline();
411 if (SP - MARK != 1) {
413 do_join(TARG, &PL_sv_no, MARK, SP);
420 tmps = SvPV(tmpsv, len);
423 (void)SvUPGRADE(error, SVt_PV);
424 if (SvPOK(error) && SvCUR(error))
425 sv_catpv(error, "\t...caught");
427 tmps = SvPV(tmpsv, len);
430 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
432 Perl_warn(aTHX_ "%"SVf, tmpsv);
443 if (SP - MARK != 1) {
445 do_join(TARG, &PL_sv_no, MARK, SP);
447 tmps = SvPV(tmpsv, len);
453 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
457 (void)SvUPGRADE(error, SVt_PV);
458 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
460 SvSetSV(error,tmpsv);
461 else if (sv_isobject(error)) {
462 HV *stash = SvSTASH(SvRV(error));
463 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
465 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
466 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
473 call_sv((SV*)GvCV(gv),
474 G_SCALAR|G_EVAL|G_KEEPERR);
475 sv_setsv(error,*PL_stack_sp--);
481 if (SvPOK(error) && SvCUR(error))
482 sv_catpv(error, "\t...propagated");
484 tmps = SvPV(tmpsv, len);
488 tmpsv = sv_2mortal(newSVpvn("Died", 4));
490 DIE(aTHX_ "%"SVf, tmpsv);
509 DIE(aTHX_ PL_no_usym, "filehandle");
511 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
513 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
514 /* Method's args are same as ours ... */
515 /* ... except handle is replaced by the object */
516 *MARK-- = SvTIED_obj((SV*)gv, mg);
520 call_method("OPEN", G_SCALAR);
533 tmps = SvPV(sv, len);
534 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
537 PUSHi( (I32)PL_forkprocess );
538 else if (PL_forkprocess == 0) /* we are a new child */
556 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
558 XPUSHs(SvTIED_obj((SV*)gv, mg));
561 call_method("CLOSE", G_SCALAR);
567 PUSHs(boolSV(do_close(gv, TRUE)));
587 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
588 DIE(aTHX_ PL_no_usym, "filehandle");
593 do_close(rgv, FALSE);
595 do_close(wgv, FALSE);
597 if (PerlProc_pipe(fd) < 0)
600 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
601 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
602 IoIFP(wstio) = IoOFP(wstio);
603 IoTYPE(rstio) = IoTYPE_RDONLY;
604 IoTYPE(wstio) = IoTYPE_WRONLY;
606 if (!IoIFP(rstio) || !IoOFP(wstio)) {
607 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
608 else PerlLIO_close(fd[0]);
609 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
610 else PerlLIO_close(fd[1]);
613 #if defined(HAS_FCNTL) && defined(F_SETFD)
614 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
615 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
622 DIE(aTHX_ PL_no_func, "pipe");
638 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
640 XPUSHs(SvTIED_obj((SV*)gv, mg));
643 call_method("FILENO", G_SCALAR);
649 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
650 /* Can't do this because people seem to do things like
651 defined(fileno($foo)) to check whether $foo is a valid fh.
652 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
653 report_evil_fh(gv, io, PL_op->op_type);
658 PUSHi(PerlIO_fileno(fp));
669 anum = PerlLIO_umask(0);
670 (void)PerlLIO_umask(anum);
673 anum = PerlLIO_umask(POPi);
674 TAINT_PROPER("umask");
677 /* Only DIE if trying to restrict permissions on `user' (self).
678 * Otherwise it's harmless and more useful to just return undef
679 * since 'group' and 'other' concepts probably don't exist here. */
680 if (MAXARG >= 1 && (POPi & 0700))
681 DIE(aTHX_ "umask not implemented");
682 XPUSHs(&PL_sv_undef);
706 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
708 XPUSHs(SvTIED_obj((SV*)gv, mg));
713 call_method("BINMODE", G_SCALAR);
720 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
721 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
722 report_evil_fh(gv, io, PL_op->op_type);
727 names = SvPV(discp,len);
730 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
731 (discp) ? SvPV_nolen(discp) : Nullch))
745 I32 markoff = MARK - PL_stack_base;
747 int how = PERL_MAGIC_tied;
752 switch(SvTYPE(varsv)) {
754 methname = "TIEHASH";
757 methname = "TIEARRAY";
760 #ifdef GV_SHARED_CHECK
761 if (GvSHARED((GV*)varsv)) {
762 Perl_croak(aTHX_ "Attempt to tie shared GV");
765 methname = "TIEHANDLE";
766 how = PERL_MAGIC_tiedscalar;
769 methname = "TIESCALAR";
770 how = PERL_MAGIC_tiedscalar;
774 if (sv_isobject(*MARK)) {
776 PUSHSTACKi(PERLSI_MAGIC);
782 call_method(methname, G_SCALAR);
785 /* Not clear why we don't call call_method here too.
786 * perhaps to get different error message ?
788 stash = gv_stashsv(*MARK, FALSE);
789 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
790 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
791 methname, SvPV(*MARK,n_a));
794 PUSHSTACKi(PERLSI_MAGIC);
800 call_sv((SV*)GvCV(gv), G_SCALAR);
806 if (sv_isobject(sv)) {
807 sv_unmagic(varsv, how);
808 /* Croak if a self-tie on an aggregate is attempted. */
809 if (varsv == SvRV(sv) &&
810 (SvTYPE(sv) == SVt_PVAV ||
811 SvTYPE(sv) == SVt_PVHV))
813 "Self-ties of arrays and hashes are not supported");
814 sv_magic(varsv, sv, how, Nullch, 0);
817 SP = PL_stack_base + markoff;
826 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
827 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
830 if ((mg = SvTIED_mg(sv, how))) {
831 SV *obj = SvRV(mg->mg_obj);
834 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
835 isGV(gv) && (cv = GvCV(gv))) {
837 XPUSHs(SvTIED_obj((SV*)gv, mg));
838 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
841 call_sv((SV *)cv, G_VOID);
845 else if (ckWARN(WARN_UNTIE)) {
846 if (mg && SvREFCNT(obj) > 1)
847 Perl_warner(aTHX_ WARN_UNTIE,
848 "untie attempted while %"UVuf" inner references still exist",
849 (UV)SvREFCNT(obj) - 1 ) ;
860 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
861 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
864 if ((mg = SvTIED_mg(sv, how))) {
865 SV *osv = SvTIED_obj(sv, mg);
866 if (osv == mg->mg_obj)
867 osv = sv_mortalcopy(osv);
885 sv = sv_mortalcopy(&PL_sv_no);
886 sv_setpv(sv, "AnyDBM_File");
887 stash = gv_stashsv(sv, FALSE);
888 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
890 require_pv("AnyDBM_File.pm");
892 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
893 DIE(aTHX_ "No dbm on this machine");
903 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
905 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
908 call_sv((SV*)GvCV(gv), G_SCALAR);
911 if (!sv_isobject(TOPs)) {
916 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
919 call_sv((SV*)GvCV(gv), G_SCALAR);
923 if (sv_isobject(TOPs)) {
924 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
925 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
947 struct timeval timebuf;
948 struct timeval *tbuf = &timebuf;
952 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
957 # if BYTEORDER & 0xf0000
958 # define ORDERBYTE (0x88888888 - BYTEORDER)
960 # define ORDERBYTE (0x4444 - BYTEORDER)
966 for (i = 1; i <= 3; i++) {
974 /* little endians can use vecs directly */
975 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
976 # if SELECT_MIN_BITS > 1
977 /* If SELECT_MIN_BITS is greater than one we most probably will want
978 * to align the sizes with SELECT_MIN_BITS/8 because for example
979 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
980 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
981 * on (sets/tests/clears bits) is 32 bits. */
982 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
984 growsize = sizeof(fd_set);
993 masksize = NFDBITS / NBBY;
995 masksize = sizeof(long); /* documented int, everyone seems to use long */
997 growsize = maxlen + (masksize - (maxlen % masksize));
998 Zero(&fd_sets[0], 4, char*);
1006 timebuf.tv_sec = (long)value;
1007 value -= (NV)timebuf.tv_sec;
1008 timebuf.tv_usec = (long)(value * 1000000.0);
1011 tbuf = Null(struct timeval*);
1013 for (i = 1; i <= 3; i++) {
1019 else if (!SvPOK(sv))
1020 SvPV_force(sv,n_a); /* force string conversion */
1023 Sv_Grow(sv, growsize);
1027 while (++j <= growsize) {
1031 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1033 New(403, fd_sets[i], growsize, char);
1034 for (offset = 0; offset < growsize; offset += masksize) {
1035 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1036 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1039 fd_sets[i] = SvPVX(sv);
1043 nfound = PerlSock_select(
1045 (Select_fd_set_t) fd_sets[1],
1046 (Select_fd_set_t) fd_sets[2],
1047 (Select_fd_set_t) fd_sets[3],
1049 for (i = 1; i <= 3; i++) {
1052 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1054 for (offset = 0; offset < growsize; offset += masksize) {
1055 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1056 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1058 Safefree(fd_sets[i]);
1065 if (GIMME == G_ARRAY && tbuf) {
1066 value = (NV)(timebuf.tv_sec) +
1067 (NV)(timebuf.tv_usec) / 1000000.0;
1068 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1069 sv_setnv(sv, value);
1073 DIE(aTHX_ "select not implemented");
1078 Perl_setdefout(pTHX_ GV *gv)
1081 (void)SvREFCNT_inc(gv);
1083 SvREFCNT_dec(PL_defoutgv);
1090 GV *newdefout, *egv;
1093 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1095 egv = GvEGV(PL_defoutgv);
1100 XPUSHs(&PL_sv_undef);
1102 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1103 if (gvp && *gvp == egv) {
1104 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1108 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1113 if (!GvIO(newdefout))
1114 gv_IOadd(newdefout);
1115 setdefout(newdefout);
1132 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1133 I32 gimme = GIMME_V;
1135 XPUSHs(SvTIED_obj((SV*)gv, mg));
1138 call_method("GETC", gimme);
1141 if (gimme == G_SCALAR)
1142 SvSetMagicSV_nosteal(TARG, TOPs);
1145 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1148 sv_setpv(TARG, " ");
1149 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1150 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1151 /* Find out how many bytes the char needs */
1152 Size_t len = UTF8SKIP(SvPVX(TARG));
1155 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1156 SvCUR_set(TARG,1+len);
1166 return pp_sysread();
1170 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1172 register PERL_CONTEXT *cx;
1173 I32 gimme = GIMME_V;
1174 AV* padlist = CvPADLIST(cv);
1175 SV** svp = AvARRAY(padlist);
1181 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1183 SAVEVPTR(PL_curpad);
1184 PL_curpad = AvARRAY((AV*)svp[1]);
1186 setdefout(gv); /* locally select filehandle so $% et al work */
1219 SV *tmpsv = sv_newmortal();
1220 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1221 name = SvPV_nolen(tmpsv);
1224 DIE(aTHX_ "Undefined format \"%s\" called", name);
1225 DIE(aTHX_ "Not a format reference");
1228 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1230 IoFLAGS(io) &= ~IOf_DIDTOP;
1231 return doform(cv,gv,PL_op->op_next);
1237 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1238 register IO *io = GvIOp(gv);
1239 PerlIO *ofp = IoOFP(io);
1243 register PERL_CONTEXT *cx;
1245 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1246 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1249 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1250 PL_formtarget != PL_toptarget)
1254 if (!IoTOP_GV(io)) {
1258 if (!IoTOP_NAME(io)) {
1259 if (!IoFMT_NAME(io))
1260 IoFMT_NAME(io) = savepv(GvNAME(gv));
1261 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1262 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1263 if ((topgv && GvFORM(topgv)) ||
1264 !gv_fetchpv("top",FALSE,SVt_PVFM))
1265 IoTOP_NAME(io) = savepv(SvPVX(topname));
1267 IoTOP_NAME(io) = savepv("top");
1269 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1270 if (!topgv || !GvFORM(topgv)) {
1271 IoLINES_LEFT(io) = 100000000;
1274 IoTOP_GV(io) = topgv;
1276 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1277 I32 lines = IoLINES_LEFT(io);
1278 char *s = SvPVX(PL_formtarget);
1279 if (lines <= 0) /* Yow, header didn't even fit!!! */
1281 while (lines-- > 0) {
1282 s = strchr(s, '\n');
1288 STRLEN save = SvCUR(PL_formtarget);
1289 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1290 do_print(PL_formtarget, ofp);
1291 SvCUR_set(PL_formtarget, save);
1292 sv_chop(PL_formtarget, s);
1293 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1296 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1297 do_print(PL_formfeed, ofp);
1298 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1300 PL_formtarget = PL_toptarget;
1301 IoFLAGS(io) |= IOf_DIDTOP;
1304 DIE(aTHX_ "bad top format reference");
1309 SV *sv = sv_newmortal();
1310 gv_efullname4(sv, fgv, Nullch, FALSE);
1311 name = SvPV_nolen(sv);
1314 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1317 DIE(aTHX_ "Undefined top format called");
1321 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1322 return doform(cv,gv,PL_op);
1326 POPBLOCK(cx,PL_curpm);
1332 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1334 /* integrate with report_evil_fh()? */
1337 SV* sv = sv_newmortal();
1338 gv_efullname4(sv, gv, Nullch, FALSE);
1339 name = SvPV_nolen(sv);
1342 Perl_warner(aTHX_ WARN_IO,
1343 "Filehandle %s opened only for input", name);
1345 Perl_warner(aTHX_ WARN_IO,
1346 "Filehandle opened only for input");
1348 else if (ckWARN(WARN_CLOSED))
1349 report_evil_fh(gv, io, PL_op->op_type);
1354 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1355 if (ckWARN(WARN_IO))
1356 Perl_warner(aTHX_ WARN_IO, "page overflow");
1358 if (!do_print(PL_formtarget, fp))
1361 FmLINES(PL_formtarget) = 0;
1362 SvCUR_set(PL_formtarget, 0);
1363 *SvEND(PL_formtarget) = '\0';
1364 if (IoFLAGS(io) & IOf_FLUSH)
1365 (void)PerlIO_flush(fp);
1370 PL_formtarget = PL_bodytarget;
1372 return pop_return();
1377 dSP; dMARK; dORIGMARK;
1384 if (PL_op->op_flags & OPf_STACKED)
1389 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1390 if (MARK == ORIGMARK) {
1393 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1397 *MARK = SvTIED_obj((SV*)gv, mg);
1400 call_method("PRINTF", G_SCALAR);
1403 MARK = ORIGMARK + 1;
1410 if (!(io = GvIO(gv))) {
1411 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1412 report_evil_fh(gv, io, PL_op->op_type);
1413 SETERRNO(EBADF,RMS$_IFI);
1416 else if (!(fp = IoOFP(io))) {
1417 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1418 /* integrate with report_evil_fh()? */
1422 gv_efullname4(sv, gv, Nullch, FALSE);
1423 name = SvPV_nolen(sv);
1426 Perl_warner(aTHX_ WARN_IO,
1427 "Filehandle %s opened only for input", name);
1429 Perl_warner(aTHX_ WARN_IO,
1430 "Filehandle opened only for input");
1432 else if (ckWARN(WARN_CLOSED))
1433 report_evil_fh(gv, io, PL_op->op_type);
1435 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1439 do_sprintf(sv, SP - MARK, MARK + 1);
1440 if (!do_print(sv, fp))
1443 if (IoFLAGS(io) & IOf_FLUSH)
1444 if (PerlIO_flush(fp) == EOF)
1455 PUSHs(&PL_sv_undef);
1476 /* Need TIEHANDLE method ? */
1478 tmps = SvPV(sv, len);
1479 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1480 IoLINES(GvIOp(gv)) = 0;
1484 PUSHs(&PL_sv_undef);
1491 dSP; dMARK; dORIGMARK; dTARGET;
1498 Sock_size_t bufsize;
1507 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1508 (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
1513 *MARK = SvTIED_obj((SV*)gv, mg);
1515 call_method("READ", G_SCALAR);
1528 sv_setpvn(bufsv, "", 0);
1529 length = SvIVx(*++MARK);
1532 offset = SvIVx(*++MARK);
1536 if (!io || !IoIFP(io))
1538 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1539 buffer = SvPVutf8_force(bufsv, blen);
1540 /* UTF8 may not have been set if they are all low bytes */
1544 buffer = SvPV_force(bufsv, blen);
1547 DIE(aTHX_ "Negative length");
1551 if (PL_op->op_type == OP_RECV) {
1552 char namebuf[MAXPATHLEN];
1553 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1554 bufsize = sizeof (struct sockaddr_in);
1556 bufsize = sizeof namebuf;
1558 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1562 buffer = SvGROW(bufsv, length+1);
1563 /* 'offset' means 'flags' here */
1564 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1565 (struct sockaddr *)namebuf, &bufsize);
1569 /* Bogus return without padding */
1570 bufsize = sizeof (struct sockaddr_in);
1572 SvCUR_set(bufsv, count);
1573 *SvEND(bufsv) = '\0';
1574 (void)SvPOK_only(bufsv);
1578 /* This should not be marked tainted if the fp is marked clean */
1579 if (!(IoFLAGS(io) & IOf_UNTAINT))
1580 SvTAINTED_on(bufsv);
1582 sv_setpvn(TARG, namebuf, bufsize);
1587 if (PL_op->op_type == OP_RECV)
1588 DIE(aTHX_ PL_no_sock_func, "recv");
1590 if (DO_UTF8(bufsv)) {
1591 /* offset adjust in characters not bytes */
1592 blen = sv_len_utf8(bufsv);
1596 DIE(aTHX_ "Offset outside string");
1599 if (DO_UTF8(bufsv)) {
1600 /* convert offset-as-chars to offset-as-bytes */
1601 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1604 bufsize = SvCUR(bufsv);
1605 buffer = SvGROW(bufsv, length+offset+1);
1606 if (offset > bufsize) { /* Zero any newly allocated space */
1607 Zero(buffer+bufsize, offset-bufsize, char);
1609 buffer = buffer + offset;
1611 if (PL_op->op_type == OP_SYSREAD) {
1612 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1613 if (IoTYPE(io) == IoTYPE_SOCKET) {
1614 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1620 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1625 #ifdef HAS_SOCKET__bad_code_maybe
1626 if (IoTYPE(io) == IoTYPE_SOCKET) {
1627 char namebuf[MAXPATHLEN];
1628 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1629 bufsize = sizeof (struct sockaddr_in);
1631 bufsize = sizeof namebuf;
1633 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1634 (struct sockaddr *)namebuf, &bufsize);
1639 count = PerlIO_read(IoIFP(io), buffer, length);
1640 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1641 if (count == 0 && PerlIO_error(IoIFP(io)))
1645 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1647 /* integrate with report_evil_fh()? */
1650 SV* sv = sv_newmortal();
1651 gv_efullname4(sv, gv, Nullch, FALSE);
1652 name = SvPV_nolen(sv);
1655 Perl_warner(aTHX_ WARN_IO,
1656 "Filehandle %s opened only for output", name);
1658 Perl_warner(aTHX_ WARN_IO,
1659 "Filehandle opened only for output");
1663 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1664 *SvEND(bufsv) = '\0';
1665 (void)SvPOK_only(bufsv);
1666 if (fp_utf8 && !IN_BYTES) {
1667 /* Look at utf8 we got back and count the characters */
1668 char *bend = buffer + count;
1669 while (buffer < bend) {
1670 STRLEN skip = UTF8SKIP(buffer);
1671 if (buffer+skip > bend) {
1672 /* partial character - try for rest of it */
1673 length = skip - (bend-buffer);
1674 offset = bend - SvPVX(bufsv);
1682 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1683 provided amount read (count) was what was requested (length)
1685 if (got < wanted && count == length) {
1686 length = (wanted-got);
1687 offset = bend - SvPVX(bufsv);
1690 /* return value is character count */
1695 /* This should not be marked tainted if the fp is marked clean */
1696 if (!(IoFLAGS(io) & IOf_UNTAINT))
1697 SvTAINTED_on(bufsv);
1710 int items = (SP - PL_stack_base) - TOPMARK;
1714 sv = sv_2mortal(newSViv(sv_len(*SP)));
1723 dSP; dMARK; dORIGMARK; dTARGET;
1734 if (PL_op->op_type == OP_SYSWRITE
1735 && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
1740 *MARK = SvTIED_obj((SV*)gv, mg);
1742 call_method("WRITE", G_SCALAR);
1753 #if Size_t_size > IVSIZE
1754 length = (Size_t)SvNVx(*++MARK);
1756 length = (Size_t)SvIVx(*++MARK);
1758 if ((SSize_t)length < 0)
1759 DIE(aTHX_ "Negative length");
1762 if (!io || !IoIFP(io)) {
1764 if (ckWARN(WARN_CLOSED))
1765 report_evil_fh(gv, io, PL_op->op_type);
1769 if (PerlIO_isutf8(IoIFP(io))) {
1770 buffer = SvPVutf8(bufsv, blen);
1774 sv_utf8_downgrade(bufsv, FALSE);
1775 buffer = SvPV(bufsv, blen);
1778 if (PL_op->op_type == OP_SYSWRITE) {
1780 if (DO_UTF8(bufsv)) {
1781 /* length and offset are in chars */
1782 blen = sv_len_utf8(bufsv);
1785 offset = SvIVx(*++MARK);
1788 DIE(aTHX_ "Offset outside string");
1790 } else if (offset >= blen && blen > 0)
1791 DIE(aTHX_ "Offset outside string");
1794 if (length > blen - offset)
1795 length = blen - offset;
1796 if (DO_UTF8(bufsv)) {
1797 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1798 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1801 buffer = buffer+offset;
1803 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1804 if (IoTYPE(io) == IoTYPE_SOCKET) {
1805 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1811 /* See the note at doio.c:do_print about filesize limits. --jhi */
1812 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1817 else if (SP > MARK) {
1820 sockbuf = SvPVx(*++MARK, mlen);
1821 /* length is really flags */
1822 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1823 length, (struct sockaddr *)sockbuf, mlen);
1826 /* length is really flags */
1827 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1830 DIE(aTHX_ PL_no_sock_func, "send");
1835 #if Size_t_size > IVSIZE
1849 return pp_sysread();
1859 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1861 gv = PL_last_in_gv = PL_argvgv;
1863 if (io && !IoIFP(io)) {
1864 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1866 IoFLAGS(io) &= ~IOf_START;
1867 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1868 sv_setpvn(GvSV(gv), "-", 1);
1869 SvSETMAGIC(GvSV(gv));
1871 else if (!nextargv(gv))
1876 gv = PL_last_in_gv; /* eof */
1879 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1881 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1883 XPUSHs(SvTIED_obj((SV*)gv, mg));
1886 call_method("EOF", G_SCALAR);
1892 PUSHs(boolSV(!gv || do_eof(gv)));
1905 gv = PL_last_in_gv = (GV*)POPs;
1907 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1909 XPUSHs(SvTIED_obj((SV*)gv, mg));
1912 call_method("TELL", G_SCALAR);
1918 #if LSEEKSIZE > IVSIZE
1919 PUSHn( do_tell(gv) );
1921 PUSHi( do_tell(gv) );
1928 return pp_sysseek();
1936 #if LSEEKSIZE > IVSIZE
1937 Off_t offset = (Off_t)SvNVx(POPs);
1939 Off_t offset = (Off_t)SvIVx(POPs);
1943 gv = PL_last_in_gv = (GV*)POPs;
1945 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1947 XPUSHs(SvTIED_obj((SV*)gv, mg));
1948 #if LSEEKSIZE > IVSIZE
1949 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1951 XPUSHs(sv_2mortal(newSViv(offset)));
1953 XPUSHs(sv_2mortal(newSViv(whence)));
1956 call_method("SEEK", G_SCALAR);
1962 if (PL_op->op_type == OP_SEEK)
1963 PUSHs(boolSV(do_seek(gv, offset, whence)));
1965 Off_t sought = do_sysseek(gv, offset, whence);
1967 PUSHs(&PL_sv_undef);
1970 #if LSEEKSIZE > IVSIZE
1975 : newSVpvn(zero_but_true, ZBTLEN);
1976 PUSHs(sv_2mortal(sv));
1985 /* There seems to be no consensus on the length type of truncate()
1986 * and ftruncate(), both off_t and size_t have supporters. In
1987 * general one would think that when using large files, off_t is
1988 * at least as wide as size_t, so using an off_t should be okay. */
1989 /* XXX Configure probe for the length type of *truncate() needed XXX */
1992 #if Size_t_size > IVSIZE
1997 /* Checking for length < 0 is problematic as the type might or
1998 * might not be signed: if it is not, clever compilers will moan. */
1999 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2001 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2007 if (PL_op->op_flags & OPf_SPECIAL) {
2008 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2011 TAINT_PROPER("truncate");
2012 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2015 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2017 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2019 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2028 if (SvTYPE(sv) == SVt_PVGV) {
2029 tmpgv = (GV*)sv; /* *main::FRED for example */
2032 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2033 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2037 name = SvPV(sv, n_a);
2038 TAINT_PROPER("truncate");
2040 if (truncate(name, len) < 0)
2046 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2049 if (my_chsize(tmpfd, len) < 0)
2051 PerlLIO_close(tmpfd);
2060 SETERRNO(EBADF,RMS$_IFI);
2064 DIE(aTHX_ "truncate not implemented");
2077 unsigned int func = POPu;
2078 int optype = PL_op->op_type;
2082 IO *io = gv ? GvIOn(gv) : 0;
2084 if (!io || !argsv || !IoIFP(io)) {
2085 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2086 report_evil_fh(gv, io, PL_op->op_type);
2087 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2091 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2094 s = SvPV_force(argsv, len);
2095 need = IOCPARM_LEN(func);
2097 s = Sv_Grow(argsv, need + 1);
2098 SvCUR_set(argsv, need);
2101 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2104 retval = SvIV(argsv);
2105 s = INT2PTR(char*,retval); /* ouch */
2108 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2110 if (optype == OP_IOCTL)
2112 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2114 DIE(aTHX_ "ioctl is not implemented");
2118 #if defined(OS2) && defined(__EMX__)
2119 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2121 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2124 DIE(aTHX_ "fcntl is not implemented");
2128 if (s[SvCUR(argsv)] != 17)
2129 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2130 PL_op_name[optype]);
2131 s[SvCUR(argsv)] = 0; /* put our null back */
2132 SvSETMAGIC(argsv); /* Assume it has changed */
2141 PUSHp(zero_but_true, ZBTLEN);
2161 if (gv && (io = GvIO(gv)))
2168 (void)PerlIO_flush(fp);
2169 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2172 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2173 report_evil_fh(gv, io, PL_op->op_type);
2175 SETERRNO(EBADF,RMS$_IFI);
2180 DIE(aTHX_ PL_no_func, "flock()");
2192 int protocol = POPi;
2198 io = gv ? GvIOn(gv) : NULL;
2201 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2202 report_evil_fh(gv, io, PL_op->op_type);
2204 do_close(gv, FALSE);
2205 SETERRNO(EBADF,LIB$_INVARG);
2210 do_close(gv, FALSE);
2212 TAINT_PROPER("socket");
2213 fd = PerlSock_socket(domain, type, protocol);
2216 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2217 IoOFP(io) = PerlIO_fdopen(fd, "w");
2218 IoTYPE(io) = IoTYPE_SOCKET;
2219 if (!IoIFP(io) || !IoOFP(io)) {
2220 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2221 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2222 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2225 #if defined(HAS_FCNTL) && defined(F_SETFD)
2226 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2230 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2235 DIE(aTHX_ PL_no_sock_func, "socket");
2242 #ifdef HAS_SOCKETPAIR
2247 int protocol = POPi;
2254 io1 = gv1 ? GvIOn(gv1) : NULL;
2255 io2 = gv2 ? GvIOn(gv2) : NULL;
2256 if (!gv1 || !gv2 || !io1 || !io2) {
2257 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2259 report_evil_fh(gv1, io1, PL_op->op_type);
2261 report_evil_fh(gv1, io2, PL_op->op_type);
2264 do_close(gv1, FALSE);
2266 do_close(gv2, FALSE);
2271 do_close(gv1, FALSE);
2273 do_close(gv2, FALSE);
2275 TAINT_PROPER("socketpair");
2276 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2278 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2279 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2280 IoTYPE(io1) = IoTYPE_SOCKET;
2281 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2282 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2283 IoTYPE(io2) = IoTYPE_SOCKET;
2284 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2285 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2286 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2287 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2288 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2289 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2290 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2293 #if defined(HAS_FCNTL) && defined(F_SETFD)
2294 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2295 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2300 DIE(aTHX_ PL_no_sock_func, "socketpair");
2308 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2309 extern GETPRIVMODE();
2310 extern GETUSERMODE();
2315 register IO *io = GvIOn(gv);
2319 int mpeprivmode = 0;
2322 if (!io || !IoIFP(io))
2325 addr = SvPV(addrsv, len);
2326 TAINT_PROPER("bind");
2327 #ifdef MPE /* Deal with MPE bind() peculiarities */
2328 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2329 /* The address *MUST* stupidly be zero. */
2330 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2331 /* PRIV mode is required to bind() to ports < 1024. */
2332 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2333 ((struct sockaddr_in *)addr)->sin_port > 0) {
2334 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2339 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2340 (struct sockaddr *)addr, len) >= 0)
2343 #ifdef MPE /* Switch back to USER mode */
2354 if (ckWARN(WARN_CLOSED))
2355 report_evil_fh(gv, io, PL_op->op_type);
2356 SETERRNO(EBADF,SS$_IVCHAN);
2359 DIE(aTHX_ PL_no_sock_func, "bind");
2370 register IO *io = GvIOn(gv);
2373 if (!io || !IoIFP(io))
2376 addr = SvPV(addrsv, len);
2377 TAINT_PROPER("connect");
2378 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2384 if (ckWARN(WARN_CLOSED))
2385 report_evil_fh(gv, io, PL_op->op_type);
2386 SETERRNO(EBADF,SS$_IVCHAN);
2389 DIE(aTHX_ PL_no_sock_func, "connect");
2399 register IO *io = gv ? GvIOn(gv) : NULL;
2401 if (!gv || !io || !IoIFP(io))
2404 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2410 if (ckWARN(WARN_CLOSED))
2411 report_evil_fh(gv, io, PL_op->op_type);
2412 SETERRNO(EBADF,SS$_IVCHAN);
2415 DIE(aTHX_ PL_no_sock_func, "listen");
2427 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2428 Sock_size_t len = sizeof saddr;
2440 if (!gstio || !IoIFP(gstio))
2445 do_close(ngv, FALSE);
2447 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2450 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2451 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2452 IoTYPE(nstio) = IoTYPE_SOCKET;
2453 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2454 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2455 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2456 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2459 #if defined(HAS_FCNTL) && defined(F_SETFD)
2460 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2464 len = sizeof saddr; /* EPOC somehow truncates info */
2465 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2468 PUSHp((char *)&saddr, len);
2472 if (ckWARN(WARN_CLOSED))
2473 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2474 SETERRNO(EBADF,SS$_IVCHAN);
2480 DIE(aTHX_ PL_no_sock_func, "accept");
2490 register IO *io = GvIOn(gv);
2492 if (!io || !IoIFP(io))
2495 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2499 if (ckWARN(WARN_CLOSED))
2500 report_evil_fh(gv, io, PL_op->op_type);
2501 SETERRNO(EBADF,SS$_IVCHAN);
2504 DIE(aTHX_ PL_no_sock_func, "shutdown");
2511 return pp_ssockopt();
2513 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2521 int optype = PL_op->op_type;
2524 unsigned int optname;
2530 if (optype == OP_GSOCKOPT)
2531 sv = sv_2mortal(NEWSV(22, 257));
2534 optname = (unsigned int) POPi;
2535 lvl = (unsigned int) POPi;
2539 if (!io || !IoIFP(io))
2542 fd = PerlIO_fileno(IoIFP(io));
2546 (void)SvPOK_only(sv);
2550 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2565 aint = (int)SvIV(sv);
2569 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2578 if (ckWARN(WARN_CLOSED))
2579 report_evil_fh(gv, io, optype);
2580 SETERRNO(EBADF,SS$_IVCHAN);
2585 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2592 return pp_getpeername();
2594 DIE(aTHX_ PL_no_sock_func, "getsockname");
2602 int optype = PL_op->op_type;
2606 register IO *io = GvIOn(gv);
2609 if (!io || !IoIFP(io))
2612 sv = sv_2mortal(NEWSV(22, 257));
2613 (void)SvPOK_only(sv);
2617 fd = PerlIO_fileno(IoIFP(io));
2619 case OP_GETSOCKNAME:
2620 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2623 case OP_GETPEERNAME:
2624 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2626 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2628 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";
2629 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2630 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2631 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2632 sizeof(u_short) + sizeof(struct in_addr))) {
2639 #ifdef BOGUS_GETNAME_RETURN
2640 /* Interactive Unix, getpeername() and getsockname()
2641 does not return valid namelen */
2642 if (len == BOGUS_GETNAME_RETURN)
2643 len = sizeof(struct sockaddr);
2651 if (ckWARN(WARN_CLOSED))
2652 report_evil_fh(gv, io, optype);
2653 SETERRNO(EBADF,SS$_IVCHAN);
2658 DIE(aTHX_ PL_no_sock_func, "getpeername");
2677 if (PL_op->op_flags & OPf_REF) {
2679 if (PL_op->op_type == OP_LSTAT) {
2680 if (PL_laststype != OP_LSTAT)
2681 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2682 if (ckWARN(WARN_IO) && gv != PL_defgv)
2683 Perl_warner(aTHX_ WARN_IO,
2684 "lstat() on filehandle %s", GvENAME(gv));
2685 /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
2689 if (gv != PL_defgv) {
2690 PL_laststype = OP_STAT;
2692 sv_setpv(PL_statname, "");
2693 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2694 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2696 if (PL_laststatval < 0) {
2697 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2698 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2704 if (SvTYPE(sv) == SVt_PVGV) {
2708 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2712 sv_setpv(PL_statname, SvPV(sv,n_a));
2715 PL_laststype = PL_op->op_type;
2716 if (PL_op->op_type == OP_LSTAT)
2717 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2720 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2721 if (PL_laststatval < 0) {
2722 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2723 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
2729 if (gimme != G_ARRAY) {
2730 if (gimme != G_VOID)
2731 XPUSHs(boolSV(max));
2737 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2738 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2739 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2740 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2741 #if Uid_t_size > IVSIZE
2742 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2744 # if Uid_t_sign <= 0
2745 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2747 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2750 #if Gid_t_size > IVSIZE
2751 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2753 # if Gid_t_sign <= 0
2754 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2756 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2759 #ifdef USE_STAT_RDEV
2760 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2762 PUSHs(sv_2mortal(newSVpvn("", 0)));
2764 #if Off_t_size > IVSIZE
2765 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2767 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2770 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2771 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2772 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2774 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2775 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2776 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2778 #ifdef USE_STAT_BLOCKS
2779 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2780 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2782 PUSHs(sv_2mortal(newSVpvn("", 0)));
2783 PUSHs(sv_2mortal(newSVpvn("", 0)));
2793 #if defined(HAS_ACCESS) && defined(R_OK)
2795 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2796 result = access(TOPpx, R_OK);
2811 if (cando(S_IRUSR, 0, &PL_statcache))
2820 #if defined(HAS_ACCESS) && defined(W_OK)
2822 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2823 result = access(TOPpx, W_OK);
2838 if (cando(S_IWUSR, 0, &PL_statcache))
2847 #if defined(HAS_ACCESS) && defined(X_OK)
2849 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2850 result = access(TOPpx, X_OK);
2865 if (cando(S_IXUSR, 0, &PL_statcache))
2874 #ifdef PERL_EFF_ACCESS_R_OK
2876 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2877 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2892 if (cando(S_IRUSR, 1, &PL_statcache))
2901 #ifdef PERL_EFF_ACCESS_W_OK
2903 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2904 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2919 if (cando(S_IWUSR, 1, &PL_statcache))
2928 #ifdef PERL_EFF_ACCESS_X_OK
2930 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2931 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2946 if (cando(S_IXUSR, 1, &PL_statcache))
2953 I32 result = my_stat();
2962 return pp_ftrowned();
2967 I32 result = my_stat();
2971 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2979 I32 result = my_stat();
2983 if (PL_statcache.st_size == 0)
2990 I32 result = my_stat();
2994 #if Off_t_size > IVSIZE
2995 PUSHn(PL_statcache.st_size);
2997 PUSHi(PL_statcache.st_size);
3004 I32 result = my_stat();
3008 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3014 I32 result = my_stat();
3018 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3024 I32 result = my_stat();
3028 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3034 I32 result = my_stat();
3038 if (S_ISSOCK(PL_statcache.st_mode))
3045 I32 result = my_stat();
3049 if (S_ISCHR(PL_statcache.st_mode))
3056 I32 result = my_stat();
3060 if (S_ISBLK(PL_statcache.st_mode))
3067 I32 result = my_stat();
3071 if (S_ISREG(PL_statcache.st_mode))
3078 I32 result = my_stat();
3082 if (S_ISDIR(PL_statcache.st_mode))
3089 I32 result = my_stat();
3093 if (S_ISFIFO(PL_statcache.st_mode))
3100 I32 result = my_lstat();
3104 if (S_ISLNK(PL_statcache.st_mode))
3113 I32 result = my_stat();
3117 if (PL_statcache.st_mode & S_ISUID)
3127 I32 result = my_stat();
3131 if (PL_statcache.st_mode & S_ISGID)
3141 I32 result = my_stat();
3145 if (PL_statcache.st_mode & S_ISVTX)
3156 char *tmps = Nullch;
3159 if (PL_op->op_flags & OPf_REF)
3161 else if (isGV(TOPs))
3163 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3164 gv = (GV*)SvRV(POPs);
3166 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3168 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3169 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3170 else if (tmps && isDIGIT(*tmps))
3174 if (PerlLIO_isatty(fd))
3179 #if defined(atarist) /* this will work with atariST. Configure will
3180 make guesses for other systems. */
3181 # define FILE_base(f) ((f)->_base)
3182 # define FILE_ptr(f) ((f)->_ptr)
3183 # define FILE_cnt(f) ((f)->_cnt)
3184 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3194 register STDCHAR *s;
3201 if (PL_op->op_flags & OPf_REF)
3203 else if (isGV(TOPs))
3205 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3206 gv = (GV*)SvRV(POPs);
3212 if (gv == PL_defgv) {
3214 io = GvIO(PL_statgv);
3217 goto really_filename;
3222 PL_laststatval = -1;
3223 sv_setpv(PL_statname, "");
3224 io = GvIO(PL_statgv);
3226 if (io && IoIFP(io)) {
3227 if (! PerlIO_has_base(IoIFP(io)))
3228 DIE(aTHX_ "-T and -B not implemented on filehandles");
3229 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3230 if (PL_laststatval < 0)
3232 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3233 if (PL_op->op_type == OP_FTTEXT)
3238 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3239 i = PerlIO_getc(IoIFP(io));
3241 (void)PerlIO_ungetc(IoIFP(io),i);
3243 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3245 len = PerlIO_get_bufsiz(IoIFP(io));
3246 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3247 /* sfio can have large buffers - limit to 512 */
3252 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3254 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3256 SETERRNO(EBADF,RMS$_IFI);
3264 PL_laststatval = -1;
3265 sv_setpv(PL_statname, SvPV(sv, n_a));
3266 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3267 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3268 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
3271 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3272 if (PL_laststatval < 0) {
3273 (void)PerlIO_close(fp);
3276 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3277 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3278 (void)PerlIO_close(fp);
3280 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3281 RETPUSHNO; /* special case NFS directories */
3282 RETPUSHYES; /* null file is anything */
3287 /* now scan s to look for textiness */
3288 /* XXX ASCII dependent code */
3290 #if defined(DOSISH) || defined(USEMYBINMODE)
3291 /* ignore trailing ^Z on short files */
3292 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3296 for (i = 0; i < len; i++, s++) {
3297 if (!*s) { /* null never allowed in text */
3302 else if (!(isPRINT(*s) || isSPACE(*s)))
3305 else if (*s & 128) {
3307 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3310 /* utf8 characters don't count as odd */
3311 if (UTF8_IS_START(*s)) {
3312 int ulen = UTF8SKIP(s);
3313 if (ulen < len - i) {
3315 for (j = 1; j < ulen; j++) {
3316 if (!UTF8_IS_CONTINUATION(s[j]))
3319 --ulen; /* loop does extra increment */
3329 *s != '\n' && *s != '\r' && *s != '\b' &&
3330 *s != '\t' && *s != '\f' && *s != 27)
3335 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3359 if (!tmps || !*tmps) {
3360 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
3362 tmps = SvPV(*svp, n_a);
3364 if (!tmps || !*tmps) {
3365 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
3367 tmps = SvPV(*svp, n_a);
3370 if (!tmps || !*tmps) {
3371 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
3373 tmps = SvPV(*svp, n_a);
3376 TAINT_PROPER("chdir");
3377 PUSHi( PerlDir_chdir(tmps) >= 0 );
3379 /* Clear the DEFAULT element of ENV so we'll get the new value
3381 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3388 dSP; dMARK; dTARGET;
3391 value = (I32)apply(PL_op->op_type, MARK, SP);
3396 DIE(aTHX_ PL_no_func, "Unsupported function chown");
3406 TAINT_PROPER("chroot");
3407 PUSHi( chroot(tmps) >= 0 );
3410 DIE(aTHX_ PL_no_func, "chroot");
3416 dSP; dMARK; dTARGET;
3418 value = (I32)apply(PL_op->op_type, MARK, SP);
3426 dSP; dMARK; dTARGET;
3428 value = (I32)apply(PL_op->op_type, MARK, SP);
3436 dSP; dMARK; dTARGET;
3438 value = (I32)apply(PL_op->op_type, MARK, SP);
3450 char *tmps2 = POPpx;
3451 char *tmps = SvPV(TOPs, n_a);
3452 TAINT_PROPER("rename");
3454 anum = PerlLIO_rename(tmps, tmps2);
3456 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3457 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3460 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3461 (void)UNLINK(tmps2);
3462 if (!(anum = link(tmps, tmps2)))
3463 anum = UNLINK(tmps);
3476 char *tmps2 = POPpx;
3477 char *tmps = SvPV(TOPs, n_a);
3478 TAINT_PROPER("link");
3479 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3481 DIE(aTHX_ PL_no_func, "Unsupported function link");
3491 char *tmps2 = POPpx;
3492 char *tmps = SvPV(TOPs, n_a);
3493 TAINT_PROPER("symlink");
3494 SETi( symlink(tmps, tmps2) >= 0 );
3497 DIE(aTHX_ PL_no_func, "symlink");
3506 char buf[MAXPATHLEN];
3510 #ifndef INCOMPLETE_TAINTS
3514 len = readlink(tmps, buf, sizeof buf);
3522 RETSETUNDEF; /* just pretend it's a normal file */
3526 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3528 S_dooneliner(pTHX_ char *cmd, char *filename)
3530 char *save_filename = filename;
3536 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3537 strcpy(cmdline, cmd);
3538 strcat(cmdline, " ");
3539 for (s = cmdline + strlen(cmdline); *filename; ) {
3544 myfp = PerlProc_popen(cmdline, "r");
3548 SV *tmpsv = sv_newmortal();
3549 /* Need to save/restore 'PL_rs' ?? */
3550 s = sv_gets(tmpsv, myfp, 0);
3551 (void)PerlProc_pclose(myfp);
3555 #ifdef HAS_SYS_ERRLIST
3560 /* you don't see this */
3562 #ifdef HAS_SYS_ERRLIST
3570 if (instr(s, errmsg)) {
3577 #define EACCES EPERM
3579 if (instr(s, "cannot make"))
3580 SETERRNO(EEXIST,RMS$_FEX);
3581 else if (instr(s, "existing file"))
3582 SETERRNO(EEXIST,RMS$_FEX);
3583 else if (instr(s, "ile exists"))
3584 SETERRNO(EEXIST,RMS$_FEX);
3585 else if (instr(s, "non-exist"))
3586 SETERRNO(ENOENT,RMS$_FNF);
3587 else if (instr(s, "does not exist"))
3588 SETERRNO(ENOENT,RMS$_FNF);
3589 else if (instr(s, "not empty"))
3590 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3591 else if (instr(s, "cannot access"))
3592 SETERRNO(EACCES,RMS$_PRV);
3594 SETERRNO(EPERM,RMS$_PRV);
3597 else { /* some mkdirs return no failure indication */
3598 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3599 if (PL_op->op_type == OP_RMDIR)
3604 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3629 tmps = SvPV(TOPs, len);
3630 /* Different operating and file systems take differently to
3631 * trailing slashes. According to POSIX 1003.1 1996 Edition
3632 * any number of trailing slashes should be allowed.
3633 * Thusly we snip them away so that even non-conforming
3634 * systems are happy. */
3635 /* We should probably do this "filtering" for all
3636 * the functions that expect (potentially) directory names:
3637 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3638 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3639 if (len > 1 && tmps[len-1] == '/') {
3640 while (tmps[len] == '/' && len > 1)
3642 tmps = savepvn(tmps, len);
3646 TAINT_PROPER("mkdir");
3648 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3650 SETi( dooneliner("mkdir", tmps) );
3651 oldumask = PerlLIO_umask(0);
3652 PerlLIO_umask(oldumask);
3653 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3667 TAINT_PROPER("rmdir");
3669 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3671 XPUSHi( dooneliner("rmdir", tmps) );
3676 /* Directory calls. */
3681 #if defined(Direntry_t) && defined(HAS_READDIR)
3683 char *dirname = POPpx;
3685 register IO *io = GvIOn(gv);
3691 PerlDir_close(IoDIRP(io));
3692 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3698 SETERRNO(EBADF,RMS$_DIR);
3701 DIE(aTHX_ PL_no_dir_func, "opendir");
3708 #if defined(Direntry_t) && defined(HAS_READDIR)
3709 #if !defined(I_DIRENT) && !defined(VMS)
3710 Direntry_t *readdir (DIR *);
3712 register Direntry_t *dp;
3714 register IO *io = GvIOn(gv);
3717 if (!io || !IoDIRP(io))
3720 if (GIMME == G_ARRAY) {
3722 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3724 sv = newSVpvn(dp->d_name, dp->d_namlen);
3726 sv = newSVpv(dp->d_name, 0);
3728 #ifndef INCOMPLETE_TAINTS
3729 if (!(IoFLAGS(io) & IOf_UNTAINT))
3732 XPUSHs(sv_2mortal(sv));
3736 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3739 sv = newSVpvn(dp->d_name, dp->d_namlen);
3741 sv = newSVpv(dp->d_name, 0);
3743 #ifndef INCOMPLETE_TAINTS
3744 if (!(IoFLAGS(io) & IOf_UNTAINT))
3747 XPUSHs(sv_2mortal(sv));
3753 SETERRNO(EBADF,RMS$_ISI);
3754 if (GIMME == G_ARRAY)
3759 DIE(aTHX_ PL_no_dir_func, "readdir");
3766 #if defined(HAS_TELLDIR) || defined(telldir)
3767 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3768 /* XXX netbsd still seemed to.
3769 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3770 --JHI 1999-Feb-02 */
3771 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3772 long telldir (DIR *);
3775 register IO *io = GvIOn(gv);
3777 if (!io || !IoDIRP(io))
3780 PUSHi( PerlDir_tell(IoDIRP(io)) );
3784 SETERRNO(EBADF,RMS$_ISI);
3787 DIE(aTHX_ PL_no_dir_func, "telldir");
3794 #if defined(HAS_SEEKDIR) || defined(seekdir)
3797 register IO *io = GvIOn(gv);
3799 if (!io || !IoDIRP(io))
3802 (void)PerlDir_seek(IoDIRP(io), along);
3807 SETERRNO(EBADF,RMS$_ISI);
3810 DIE(aTHX_ PL_no_dir_func, "seekdir");
3817 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3819 register IO *io = GvIOn(gv);
3821 if (!io || !IoDIRP(io))
3824 (void)PerlDir_rewind(IoDIRP(io));
3828 SETERRNO(EBADF,RMS$_ISI);
3831 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3838 #if defined(Direntry_t) && defined(HAS_READDIR)
3840 register IO *io = GvIOn(gv);
3842 if (!io || !IoDIRP(io))
3845 #ifdef VOID_CLOSEDIR
3846 PerlDir_close(IoDIRP(io));
3848 if (PerlDir_close(IoDIRP(io)) < 0) {
3849 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3858 SETERRNO(EBADF,RMS$_IFI);
3861 DIE(aTHX_ PL_no_dir_func, "closedir");
3865 /* Process control. */
3875 PERL_FLUSHALL_FOR_CHILD;
3881 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV)))
3882 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3883 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3888 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3893 PERL_FLUSHALL_FOR_CHILD;
3894 childpid = PerlProc_fork();
3900 DIE(aTHX_ PL_no_func, "Unsupported function fork");
3907 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3912 #ifdef PERL_OLD_SIGNALS
3913 childpid = wait4pid(-1, &argflags, 0);
3915 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3919 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3920 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3921 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3923 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3928 DIE(aTHX_ PL_no_func, "Unsupported function wait");
3934 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3942 #ifdef PERL_OLD_SIGNALS
3943 childpid = wait4pid(childpid, &argflags, optype);
3945 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
3949 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3950 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3951 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3953 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3958 DIE(aTHX_ PL_no_func, "Unsupported function waitpid");
3964 dSP; dMARK; dORIGMARK; dTARGET;
3969 Sigsave_t ihand,qhand; /* place to save signals during system() */
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(__CYGWIN__) || defined(PERL_MICRO)
3983 if (PerlProc_pipe(pp) >= 0)
3985 while ((childpid = vfork()) == -1) {
3986 if (errno != EAGAIN) {
3991 PerlLIO_close(pp[0]);
3992 PerlLIO_close(pp[1]);
4000 PerlLIO_close(pp[1]);
4002 rsignal_save(SIGINT, SIG_IGN, &ihand);
4003 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4006 result = wait4pid(childpid, &status, 0);
4007 } while (result == -1 && errno == EINTR);
4009 (void)rsignal_restore(SIGINT, &ihand);
4010 (void)rsignal_restore(SIGQUIT, &qhand);
4012 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4013 do_execfree(); /* free any memory child malloced on vfork */
4019 while (n < sizeof(int)) {
4020 n1 = PerlLIO_read(pp[0],
4021 (void*)(((char*)&errkid)+n),
4027 PerlLIO_close(pp[0]);
4028 if (n) { /* Error */
4029 if (n != sizeof(int))
4030 DIE(aTHX_ "panic: kid popen errno read");
4031 errno = errkid; /* Propagate errno from kid */
4032 STATUS_CURRENT = -1;
4035 PUSHi(STATUS_CURRENT);
4039 PerlLIO_close(pp[0]);
4040 #if defined(HAS_FCNTL) && defined(F_SETFD)
4041 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4044 if (PL_op->op_flags & OPf_STACKED) {
4045 SV *really = *++MARK;
4046 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4048 else if (SP - MARK != 1)
4049 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4051 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4054 #else /* ! FORK or VMS or OS/2 */
4057 if (PL_op->op_flags & OPf_STACKED) {
4058 SV *really = *++MARK;
4059 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4061 else if (SP - MARK != 1)
4062 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4064 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4066 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4068 STATUS_NATIVE_SET(value);
4071 PUSHi(result ? value : STATUS_CURRENT);
4072 #endif /* !FORK or VMS */
4078 dSP; dMARK; dORIGMARK; dTARGET;
4082 PERL_FLUSHALL_FOR_CHILD;
4083 if (PL_op->op_flags & OPf_STACKED) {
4084 SV *really = *++MARK;
4085 value = (I32)do_aexec(really, MARK, SP);
4087 else if (SP - MARK != 1)
4089 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4093 (void ) do_aspawn(Nullsv, MARK, SP);
4097 value = (I32)do_aexec(Nullsv, MARK, SP);
4102 (void)SvPV_nolen(*SP); /* stringify for taint check */
4104 TAINT_PROPER("exec");
4107 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4110 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4113 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4118 #if !defined(HAS_FORK) && defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4130 dSP; dMARK; dTARGET;
4133 value = (I32)apply(PL_op->op_type, MARK, SP);
4138 DIE(aTHX_ PL_no_func, "Unsupported function kill");
4146 XPUSHi( getppid() );
4149 DIE(aTHX_ PL_no_func, "getppid");
4165 pgrp = (I32)BSD_GETPGRP(pid);
4167 if (pid != 0 && pid != PerlProc_getpid())
4168 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4174 DIE(aTHX_ PL_no_func, "getpgrp()");
4193 TAINT_PROPER("setpgrp");
4195 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4197 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4198 || (pid != 0 && pid != PerlProc_getpid()))
4200 DIE(aTHX_ "setpgrp can't take arguments");
4202 SETi( setpgrp() >= 0 );
4203 #endif /* USE_BSDPGRP */
4206 DIE(aTHX_ PL_no_func, "setpgrp()");
4213 #ifdef HAS_GETPRIORITY
4216 SETi( getpriority(which, who) );
4219 DIE(aTHX_ PL_no_func, "getpriority()");
4226 #ifdef HAS_SETPRIORITY
4230 TAINT_PROPER("setpriority");
4231 SETi( setpriority(which, who, niceval) >= 0 );
4234 DIE(aTHX_ PL_no_func, "setpriority()");
4244 XPUSHn( time(Null(Time_t*)) );
4246 XPUSHi( time(Null(Time_t*)) );
4251 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4252 to HZ. Probably. For now, assume that if the system
4253 defines HZ, it does so correctly. (Will this break
4255 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4256 it's supported. --AD 9/96.
4272 DIE(aTHX_ "times not implemented");
4277 (void)PerlProc_times(&PL_timesbuf);
4279 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4280 /* struct tms, though same data */
4284 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4285 if (GIMME == G_ARRAY) {
4286 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4287 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4288 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4291 #endif /* HAS_TIMES */
4304 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4305 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4306 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4312 when = (Time_t)SvNVx(POPs);
4314 when = (Time_t)SvIVx(POPs);
4317 if (PL_op->op_type == OP_LOCALTIME)
4318 tmbuf = localtime(&when);
4320 tmbuf = gmtime(&when);
4324 if (GIMME != G_ARRAY) {
4328 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4329 dayname[tmbuf->tm_wday],
4330 monname[tmbuf->tm_mon],
4335 tmbuf->tm_year + 1900);
4336 PUSHs(sv_2mortal(tsv));
4339 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4340 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4341 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4342 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4343 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4344 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4345 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4346 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4347 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4358 anum = alarm((unsigned int)anum);
4365 DIE(aTHX_ PL_no_func, "Unsupported function alarm");
4376 (void)time(&lasttime);
4381 PerlProc_sleep((unsigned int)duration);
4384 XPUSHi(when - lasttime);
4388 /* Shared memory. */
4402 return pp_shmwrite();
4407 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4408 dSP; dMARK; dTARGET;
4409 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4418 /* Message passing. */
4432 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4433 dSP; dMARK; dTARGET;
4434 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4445 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4446 dSP; dMARK; dTARGET;
4447 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4460 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4461 dSP; dMARK; dTARGET;
4462 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4469 DIE(aTHX_ "System V IPC is not implemented on this machine");
4475 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4476 dSP; dMARK; dTARGET;
4477 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4485 PUSHp(zero_but_true, ZBTLEN);
4495 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4496 dSP; dMARK; dTARGET;
4497 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4506 /* Get system info. */
4510 #ifdef HAS_GETHOSTBYNAME
4511 return pp_ghostent();
4513 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4519 #ifdef HAS_GETHOSTBYADDR
4520 return pp_ghostent();
4522 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4529 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4530 I32 which = PL_op->op_type;
4531 register char **elem;
4533 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4534 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4535 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
4536 struct hostent *PerlSock_gethostent(void);
4538 struct hostent *hent;
4543 if (which == OP_GHBYNAME)
4544 #ifdef HAS_GETHOSTBYNAME
4545 hent = PerlSock_gethostbyname(POPpbytex);
4547 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4549 else if (which == OP_GHBYADDR) {
4550 #ifdef HAS_GETHOSTBYADDR
4551 int addrtype = POPi;
4554 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4556 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4558 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4562 #ifdef HAS_GETHOSTENT
4563 hent = PerlSock_gethostent();
4565 DIE(aTHX_ PL_no_sock_func, "gethostent");
4568 #ifdef HOST_NOT_FOUND
4570 STATUS_NATIVE_SET(h_errno);
4573 if (GIMME != G_ARRAY) {
4574 PUSHs(sv = sv_newmortal());
4576 if (which == OP_GHBYNAME) {
4578 sv_setpvn(sv, hent->h_addr, hent->h_length);
4581 sv_setpv(sv, (char*)hent->h_name);
4587 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4588 sv_setpv(sv, (char*)hent->h_name);
4589 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4590 for (elem = hent->h_aliases; elem && *elem; elem++) {
4591 sv_catpv(sv, *elem);
4593 sv_catpvn(sv, " ", 1);
4595 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4596 sv_setiv(sv, (IV)hent->h_addrtype);
4597 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4598 len = hent->h_length;
4599 sv_setiv(sv, (IV)len);
4601 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4602 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4603 sv_setpvn(sv, *elem, len);
4606 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4608 sv_setpvn(sv, hent->h_addr, len);
4613 DIE(aTHX_ PL_no_sock_func, "gethostent");
4619 #ifdef HAS_GETNETBYNAME
4620 return pp_gnetent();
4622 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4628 #ifdef HAS_GETNETBYADDR
4629 return pp_gnetent();
4631 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4638 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4639 I32 which = PL_op->op_type;
4640 register char **elem;
4642 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4643 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4644 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4645 struct netent *PerlSock_getnetent(void);
4647 struct netent *nent;
4650 if (which == OP_GNBYNAME)
4651 #ifdef HAS_GETNETBYNAME
4652 nent = PerlSock_getnetbyname(POPpbytex);
4654 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4656 else if (which == OP_GNBYADDR) {
4657 #ifdef HAS_GETNETBYADDR
4658 int addrtype = POPi;
4659 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4660 nent = PerlSock_getnetbyaddr(addr, addrtype);
4662 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4666 #ifdef HAS_GETNETENT
4667 nent = PerlSock_getnetent();
4669 DIE(aTHX_ PL_no_sock_func, "getnetent");
4673 if (GIMME != G_ARRAY) {
4674 PUSHs(sv = sv_newmortal());
4676 if (which == OP_GNBYNAME)
4677 sv_setiv(sv, (IV)nent->n_net);
4679 sv_setpv(sv, nent->n_name);
4685 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4686 sv_setpv(sv, nent->n_name);
4687 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4688 for (elem = nent->n_aliases; elem && *elem; elem++) {
4689 sv_catpv(sv, *elem);
4691 sv_catpvn(sv, " ", 1);
4693 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4694 sv_setiv(sv, (IV)nent->n_addrtype);
4695 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4696 sv_setiv(sv, (IV)nent->n_net);
4701 DIE(aTHX_ PL_no_sock_func, "getnetent");
4707 #ifdef HAS_GETPROTOBYNAME
4708 return pp_gprotoent();
4710 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4716 #ifdef HAS_GETPROTOBYNUMBER
4717 return pp_gprotoent();
4719 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4726 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4727 I32 which = PL_op->op_type;
4728 register char **elem;
4730 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4731 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4732 struct protoent *PerlSock_getprotobynumber(int);
4733 struct protoent *PerlSock_getprotoent(void);
4735 struct protoent *pent;
4738 if (which == OP_GPBYNAME)
4739 #ifdef HAS_GETPROTOBYNAME
4740 pent = PerlSock_getprotobyname(POPpbytex);
4742 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4744 else if (which == OP_GPBYNUMBER)
4745 #ifdef HAS_GETPROTOBYNUMBER
4746 pent = PerlSock_getprotobynumber(POPi);
4748 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4751 #ifdef HAS_GETPROTOENT
4752 pent = PerlSock_getprotoent();
4754 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4758 if (GIMME != G_ARRAY) {
4759 PUSHs(sv = sv_newmortal());
4761 if (which == OP_GPBYNAME)
4762 sv_setiv(sv, (IV)pent->p_proto);
4764 sv_setpv(sv, pent->p_name);
4770 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4771 sv_setpv(sv, pent->p_name);
4772 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4773 for (elem = pent->p_aliases; elem && *elem; elem++) {
4774 sv_catpv(sv, *elem);
4776 sv_catpvn(sv, " ", 1);
4778 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4779 sv_setiv(sv, (IV)pent->p_proto);
4784 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4790 #ifdef HAS_GETSERVBYNAME
4791 return pp_gservent();
4793 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4799 #ifdef HAS_GETSERVBYPORT
4800 return pp_gservent();
4802 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4809 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4810 I32 which = PL_op->op_type;
4811 register char **elem;
4813 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4814 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4815 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4816 struct servent *PerlSock_getservent(void);
4818 struct servent *sent;
4821 if (which == OP_GSBYNAME) {
4822 #ifdef HAS_GETSERVBYNAME
4823 char *proto = POPpbytex;
4824 char *name = POPpbytex;
4826 if (proto && !*proto)
4829 sent = PerlSock_getservbyname(name, proto);
4831 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4834 else if (which == OP_GSBYPORT) {
4835 #ifdef HAS_GETSERVBYPORT
4836 char *proto = POPpbytex;
4837 unsigned short port = POPu;
4840 port = PerlSock_htons(port);
4842 sent = PerlSock_getservbyport(port, proto);
4844 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4848 #ifdef HAS_GETSERVENT
4849 sent = PerlSock_getservent();
4851 DIE(aTHX_ PL_no_sock_func, "getservent");
4855 if (GIMME != G_ARRAY) {
4856 PUSHs(sv = sv_newmortal());
4858 if (which == OP_GSBYNAME) {
4860 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4862 sv_setiv(sv, (IV)(sent->s_port));
4866 sv_setpv(sv, sent->s_name);
4872 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4873 sv_setpv(sv, sent->s_name);
4874 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4875 for (elem = sent->s_aliases; elem && *elem; elem++) {
4876 sv_catpv(sv, *elem);
4878 sv_catpvn(sv, " ", 1);
4880 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4882 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4884 sv_setiv(sv, (IV)(sent->s_port));
4886 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4887 sv_setpv(sv, sent->s_proto);
4892 DIE(aTHX_ PL_no_sock_func, "getservent");
4899 #ifdef HAS_SETHOSTENT
4900 PerlSock_sethostent(TOPi);
4903 DIE(aTHX_ PL_no_sock_func, "sethostent");
4910 #ifdef HAS_SETNETENT
4911 PerlSock_setnetent(TOPi);
4914 DIE(aTHX_ PL_no_sock_func, "setnetent");
4921 #ifdef HAS_SETPROTOENT
4922 PerlSock_setprotoent(TOPi);
4925 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4932 #ifdef HAS_SETSERVENT
4933 PerlSock_setservent(TOPi);
4936 DIE(aTHX_ PL_no_sock_func, "setservent");
4943 #ifdef HAS_ENDHOSTENT
4944 PerlSock_endhostent();
4948 DIE(aTHX_ PL_no_sock_func, "endhostent");
4955 #ifdef HAS_ENDNETENT
4956 PerlSock_endnetent();
4960 DIE(aTHX_ PL_no_sock_func, "endnetent");
4967 #ifdef HAS_ENDPROTOENT
4968 PerlSock_endprotoent();
4972 DIE(aTHX_ PL_no_sock_func, "endprotoent");
4979 #ifdef HAS_ENDSERVENT
4980 PerlSock_endservent();
4984 DIE(aTHX_ PL_no_sock_func, "endservent");
4993 DIE(aTHX_ PL_no_func, "getpwnam");
5002 DIE(aTHX_ PL_no_func, "getpwuid");
5010 I32 which = PL_op->op_type;
5013 struct passwd *pwent = NULL;
5015 * We currently support only the SysV getsp* shadow password interface.
5016 * The interface is declared in <shadow.h> and often one needs to link
5017 * with -lsecurity or some such.
5018 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5021 * AIX getpwnam() is clever enough to return the encrypted password
5022 * only if the caller (euid?) is root.
5024 * There are at least two other shadow password APIs. Many platforms
5025 * seem to contain more than one interface for accessing the shadow
5026 * password databases, possibly for compatibility reasons.
5027 * The getsp*() is by far he simplest one, the other two interfaces
5028 * are much more complicated, but also very similar to each other.
5033 * struct pr_passwd *getprpw*();
5034 * The password is in
5035 * char getprpw*(...).ufld.fd_encrypt[]
5036 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5041 * struct es_passwd *getespw*();
5042 * The password is in
5043 * char *(getespw*(...).ufld.fd_encrypt)
5044 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5046 * Mention I_PROT here so that Configure probes for it.
5048 * In HP-UX for getprpw*() the manual page claims that one should include
5049 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5050 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5051 * and pp_sys.c already includes <shadow.h> if there is such.
5053 * Note that <sys/security.h> is already probed for, but currently
5054 * it is only included in special cases.
5056 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5057 * be preferred interface, even though also the getprpw*() interface
5058 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5059 * One also needs to call set_auth_parameters() in main() before
5060 * doing anything else, whether one is using getespw*() or getprpw*().
5062 * Note that accessing the shadow databases can be magnitudes
5063 * slower than accessing the standard databases.
5070 pwent = getpwnam(POPpbytex);
5073 pwent = getpwuid((Uid_t)POPi);
5076 # ifdef HAS_GETPWENT
5079 DIE(aTHX_ PL_no_func, "getpwent");
5085 if (GIMME != G_ARRAY) {
5086 PUSHs(sv = sv_newmortal());
5088 if (which == OP_GPWNAM)
5089 # if Uid_t_sign <= 0
5090 sv_setiv(sv, (IV)pwent->pw_uid);
5092 sv_setuv(sv, (UV)pwent->pw_uid);
5095 sv_setpv(sv, pwent->pw_name);
5101 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5102 sv_setpv(sv, pwent->pw_name);
5104 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5106 /* If we have getspnam(), we try to dig up the shadow
5107 * password. If we are underprivileged, the shadow
5108 * interface will set the errno to EACCES or similar,
5109 * and return a null pointer. If this happens, we will
5110 * use the dummy password (usually "*" or "x") from the
5111 * standard password database.
5113 * In theory we could skip the shadow call completely
5114 * if euid != 0 but in practice we cannot know which
5115 * security measures are guarding the shadow databases
5116 * on a random platform.
5118 * Resist the urge to use additional shadow interfaces.
5119 * Divert the urge to writing an extension instead.
5122 # ifdef HAS_GETSPNAM
5124 struct spwd *spwent;
5125 int saverrno; /* Save and restore errno so that
5126 * underprivileged attempts seem
5127 * to have never made the unsccessful
5128 * attempt to retrieve the shadow password. */
5131 spwent = getspnam(pwent->pw_name);
5133 if (spwent && spwent->sp_pwdp)
5134 sv_setpv(sv, spwent->sp_pwdp);
5138 if (!SvPOK(sv)) /* Use the standard password, then. */
5139 sv_setpv(sv, pwent->pw_passwd);
5142 # ifndef INCOMPLETE_TAINTS
5143 /* passwd is tainted because user himself can diddle with it.
5144 * admittedly not much and in a very limited way, but nevertheless. */
5148 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5149 # if Uid_t_sign <= 0
5150 sv_setiv(sv, (IV)pwent->pw_uid);
5152 sv_setuv(sv, (UV)pwent->pw_uid);
5155 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5156 # if Uid_t_sign <= 0
5157 sv_setiv(sv, (IV)pwent->pw_gid);
5159 sv_setuv(sv, (UV)pwent->pw_gid);
5161 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5162 * because of the poor interface of the Perl getpw*(),
5163 * not because there's some standard/convention saying so.
5164 * A better interface would have been to return a hash,
5165 * but we are accursed by our history, alas. --jhi. */
5166 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5168 sv_setiv(sv, (IV)pwent->pw_change);
5171 sv_setiv(sv, (IV)pwent->pw_quota);
5174 sv_setpv(sv, pwent->pw_age);
5179 /* pw_class and pw_comment are mutually exclusive--.
5180 * see the above note for pw_change, pw_quota, and pw_age. */
5181 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5183 sv_setpv(sv, pwent->pw_class);
5186 sv_setpv(sv, pwent->pw_comment);
5190 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5192 sv_setpv(sv, pwent->pw_gecos);
5194 # ifndef INCOMPLETE_TAINTS
5195 /* pw_gecos is tainted because user himself can diddle with it. */
5199 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5200 sv_setpv(sv, pwent->pw_dir);
5202 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5203 sv_setpv(sv, pwent->pw_shell);
5204 # ifndef INCOMPLETE_TAINTS
5205 /* pw_shell is tainted because user himself can diddle with it. */
5210 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5211 sv_setiv(sv, (IV)pwent->pw_expire);
5216 DIE(aTHX_ PL_no_func, "getpwent");
5223 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5227 DIE(aTHX_ PL_no_func, "setpwent");
5234 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5238 DIE(aTHX_ PL_no_func, "endpwent");
5247 DIE(aTHX_ PL_no_func, "getgrnam");
5256 DIE(aTHX_ PL_no_func, "getgrgid");
5264 I32 which = PL_op->op_type;
5265 register char **elem;
5267 struct group *grent;
5270 if (which == OP_GGRNAM)
5271 grent = (struct group *)getgrnam(POPpbytex);
5272 else if (which == OP_GGRGID)
5273 grent = (struct group *)getgrgid(POPi);
5276 grent = (struct group *)getgrent();
5278 DIE(aTHX_ PL_no_func, "getgrent");
5282 if (GIMME != G_ARRAY) {
5283 PUSHs(sv = sv_newmortal());
5285 if (which == OP_GGRNAM)
5286 sv_setiv(sv, (IV)grent->gr_gid);
5288 sv_setpv(sv, grent->gr_name);
5294 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5295 sv_setpv(sv, grent->gr_name);
5297 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5299 sv_setpv(sv, grent->gr_passwd);
5302 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5303 sv_setiv(sv, (IV)grent->gr_gid);
5305 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5306 for (elem = grent->gr_mem; elem && *elem; elem++) {
5307 sv_catpv(sv, *elem);
5309 sv_catpvn(sv, " ", 1);
5315 DIE(aTHX_ PL_no_func, "getgrent");
5322 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5326 DIE(aTHX_ PL_no_func, "setgrent");
5333 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5337 DIE(aTHX_ PL_no_func, "endgrent");
5347 if (!(tmps = PerlProc_getlogin()))
5349 PUSHp(tmps, strlen(tmps));
5352 DIE(aTHX_ PL_no_func, "getlogin");
5356 /* Miscellaneous. */
5361 dSP; dMARK; dORIGMARK; dTARGET;
5362 register I32 items = SP - MARK;
5363 unsigned long a[20];
5369 while (++MARK <= SP) {
5370 if (SvTAINTED(*MARK)) {
5376 TAINT_PROPER("syscall");
5379 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5380 * or where sizeof(long) != sizeof(char*). But such machines will
5381 * not likely have syscall implemented either, so who cares?
5383 while (++MARK <= SP) {
5384 if (SvNIOK(*MARK) || !i)
5385 a[i++] = SvIV(*MARK);
5386 else if (*MARK == &PL_sv_undef)
5389 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5395 DIE(aTHX_ "Too many args to syscall");
5397 DIE(aTHX_ "Too few args to syscall");
5399 retval = syscall(a[0]);
5402 retval = syscall(a[0],a[1]);
5405 retval = syscall(a[0],a[1],a[2]);
5408 retval = syscall(a[0],a[1],a[2],a[3]);
5411 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5414 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5417 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5420 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5424 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5427 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5430 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],
5443 a[10],a[11],a[12],a[13]);
5445 #endif /* atarist */
5451 DIE(aTHX_ PL_no_func, "syscall");
5455 #ifdef FCNTL_EMULATE_FLOCK
5457 /* XXX Emulate flock() with fcntl().
5458 What's really needed is a good file locking module.
5462 fcntl_emulate_flock(int fd, int operation)
5466 switch (operation & ~LOCK_NB) {
5468 flock.l_type = F_RDLCK;
5471 flock.l_type = F_WRLCK;
5474 flock.l_type = F_UNLCK;
5480 flock.l_whence = SEEK_SET;
5481 flock.l_start = flock.l_len = (Off_t)0;
5483 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5486 #endif /* FCNTL_EMULATE_FLOCK */
5488 #ifdef LOCKF_EMULATE_FLOCK
5490 /* XXX Emulate flock() with lockf(). This is just to increase
5491 portability of scripts. The calls are not completely
5492 interchangeable. What's really needed is a good file
5496 /* The lockf() constants might have been defined in <unistd.h>.
5497 Unfortunately, <unistd.h> causes troubles on some mixed
5498 (BSD/POSIX) systems, such as SunOS 4.1.3.
5500 Further, the lockf() constants aren't POSIX, so they might not be
5501 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5502 just stick in the SVID values and be done with it. Sigh.
5506 # define F_ULOCK 0 /* Unlock a previously locked region */
5509 # define F_LOCK 1 /* Lock a region for exclusive use */
5512 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5515 # define F_TEST 3 /* Test a region for other processes locks */
5519 lockf_emulate_flock(int fd, int operation)
5525 /* flock locks entire file so for lockf we need to do the same */
5527 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5528 if (pos > 0) /* is seekable and needs to be repositioned */
5529 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5530 pos = -1; /* seek failed, so don't seek back afterwards */
5533 switch (operation) {
5535 /* LOCK_SH - get a shared lock */
5537 /* LOCK_EX - get an exclusive lock */
5539 i = lockf (fd, F_LOCK, 0);
5542 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5543 case LOCK_SH|LOCK_NB:
5544 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5545 case LOCK_EX|LOCK_NB:
5546 i = lockf (fd, F_TLOCK, 0);
5548 if ((errno == EAGAIN) || (errno == EACCES))
5549 errno = EWOULDBLOCK;
5552 /* LOCK_UN - unlock (non-blocking is a no-op) */
5554 case LOCK_UN|LOCK_NB:
5555 i = lockf (fd, F_ULOCK, 0);
5558 /* Default - can't decipher operation */
5565 if (pos > 0) /* need to restore position of the handle */
5566 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5571 #endif /* LOCKF_EMULATE_FLOCK */