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)
282 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
284 Perl_croak(aTHX_ "switching effective uid is not implemented");
300 if (PL_op->op_private & OPpOPEN_IN_RAW)
302 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
304 fp = PerlProc_popen(tmps, mode);
307 if (PL_curcop->cop_io) {
308 type = SvPV_nolen(PL_curcop->cop_io);
311 PerlIO_apply_layers(aTHX_ fp,mode,type);
313 if (gimme == G_VOID) {
315 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
319 else if (gimme == G_SCALAR) {
320 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
321 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
332 if (sv_gets(sv, fp, 0) == Nullch) {
336 XPUSHs(sv_2mortal(sv));
337 if (SvLEN(sv) - SvCUR(sv) > 20) {
338 SvLEN_set(sv, SvCUR(sv)+1);
339 Renew(SvPVX(sv), SvLEN(sv), char);
344 STATUS_NATIVE_SET(PerlProc_pclose(fp));
345 TAINT; /* "I believe that this is not gratuitous!" */
348 STATUS_NATIVE_SET(-1);
349 if (gimme == G_SCALAR)
359 tryAMAGICunTARGET(iter, -1);
361 /* Note that we only ever get here if File::Glob fails to load
362 * without at the same time croaking, for some reason, or if
363 * perl was built with PERL_EXTERNAL_GLOB */
370 * The external globbing program may use things we can't control,
371 * so for security reasons we must assume the worst.
374 taint_proper(PL_no_security, "glob");
378 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
379 PL_last_in_gv = (GV*)*PL_stack_sp--;
381 SAVESPTR(PL_rs); /* This is not permanent, either. */
382 PL_rs = sv_2mortal(newSVpvn("\000", 1));
385 *SvPVX(PL_rs) = '\n';
389 result = do_readline();
394 #if 0 /* XXX never used! */
398 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
399 return do_readline();
405 PL_last_in_gv = cGVOP_gv;
406 return do_readline();
415 if (SP - MARK != 1) {
417 do_join(TARG, &PL_sv_no, MARK, SP);
424 tmps = SvPV(tmpsv, len);
427 (void)SvUPGRADE(error, SVt_PV);
428 if (SvPOK(error) && SvCUR(error))
429 sv_catpv(error, "\t...caught");
431 tmps = SvPV(tmpsv, len);
434 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
436 Perl_warn(aTHX_ "%"SVf, tmpsv);
447 if (SP - MARK != 1) {
449 do_join(TARG, &PL_sv_no, MARK, SP);
451 tmps = SvPV(tmpsv, len);
457 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
461 (void)SvUPGRADE(error, SVt_PV);
462 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
464 SvSetSV(error,tmpsv);
465 else if (sv_isobject(error)) {
466 HV *stash = SvSTASH(SvRV(error));
467 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
469 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
470 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
477 call_sv((SV*)GvCV(gv),
478 G_SCALAR|G_EVAL|G_KEEPERR);
479 sv_setsv(error,*PL_stack_sp--);
485 if (SvPOK(error) && SvCUR(error))
486 sv_catpv(error, "\t...propagated");
488 tmps = SvPV(tmpsv, len);
492 tmpsv = sv_2mortal(newSVpvn("Died", 4));
494 DIE(aTHX_ "%"SVf, tmpsv);
513 DIE(aTHX_ PL_no_usym, "filehandle");
515 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
517 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
518 /* Method's args are same as ours ... */
519 /* ... except handle is replaced by the object */
520 *MARK-- = SvTIED_obj((SV*)gv, mg);
524 call_method("OPEN", G_SCALAR);
537 tmps = SvPV(sv, len);
538 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
541 PUSHi( (I32)PL_forkprocess );
542 else if (PL_forkprocess == 0) /* we are a new child */
560 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
562 XPUSHs(SvTIED_obj((SV*)gv, mg));
565 call_method("CLOSE", G_SCALAR);
571 PUSHs(boolSV(do_close(gv, TRUE)));
591 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
592 DIE(aTHX_ PL_no_usym, "filehandle");
597 do_close(rgv, FALSE);
599 do_close(wgv, FALSE);
601 if (PerlProc_pipe(fd) < 0)
604 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
605 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
606 IoIFP(wstio) = IoOFP(wstio);
607 IoTYPE(rstio) = IoTYPE_RDONLY;
608 IoTYPE(wstio) = IoTYPE_WRONLY;
610 if (!IoIFP(rstio) || !IoOFP(wstio)) {
611 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
612 else PerlLIO_close(fd[0]);
613 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
614 else PerlLIO_close(fd[1]);
617 #if defined(HAS_FCNTL) && defined(F_SETFD)
618 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
619 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
626 DIE(aTHX_ PL_no_func, "pipe");
642 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
644 XPUSHs(SvTIED_obj((SV*)gv, mg));
647 call_method("FILENO", G_SCALAR);
653 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
654 /* Can't do this because people seem to do things like
655 defined(fileno($foo)) to check whether $foo is a valid fh.
656 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
657 report_evil_fh(gv, io, PL_op->op_type);
662 PUSHi(PerlIO_fileno(fp));
673 anum = PerlLIO_umask(0);
674 (void)PerlLIO_umask(anum);
677 anum = PerlLIO_umask(POPi);
678 TAINT_PROPER("umask");
681 /* Only DIE if trying to restrict permissions on `user' (self).
682 * Otherwise it's harmless and more useful to just return undef
683 * since 'group' and 'other' concepts probably don't exist here. */
684 if (MAXARG >= 1 && (POPi & 0700))
685 DIE(aTHX_ "umask not implemented");
686 XPUSHs(&PL_sv_undef);
710 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
712 XPUSHs(SvTIED_obj((SV*)gv, mg));
717 call_method("BINMODE", G_SCALAR);
724 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
725 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
726 report_evil_fh(gv, io, PL_op->op_type);
731 names = SvPV(discp,len);
734 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
735 (discp) ? SvPV_nolen(discp) : Nullch))
749 I32 markoff = MARK - PL_stack_base;
751 int how = PERL_MAGIC_tied;
756 switch(SvTYPE(varsv)) {
758 methname = "TIEHASH";
761 methname = "TIEARRAY";
764 #ifdef GV_SHARED_CHECK
765 if (GvSHARED((GV*)varsv)) {
766 Perl_croak(aTHX_ "Attempt to tie shared GV");
769 methname = "TIEHANDLE";
770 how = PERL_MAGIC_tiedscalar;
773 methname = "TIESCALAR";
774 how = PERL_MAGIC_tiedscalar;
778 if (sv_isobject(*MARK)) {
780 PUSHSTACKi(PERLSI_MAGIC);
786 call_method(methname, G_SCALAR);
789 /* Not clear why we don't call call_method here too.
790 * perhaps to get different error message ?
792 stash = gv_stashsv(*MARK, FALSE);
793 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
794 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
795 methname, SvPV(*MARK,n_a));
798 PUSHSTACKi(PERLSI_MAGIC);
804 call_sv((SV*)GvCV(gv), G_SCALAR);
810 if (sv_isobject(sv)) {
811 sv_unmagic(varsv, how);
812 /* Croak if a self-tie on an aggregate is attempted. */
813 if (varsv == SvRV(sv) &&
814 (SvTYPE(sv) == SVt_PVAV ||
815 SvTYPE(sv) == SVt_PVHV))
817 "Self-ties of arrays and hashes are not supported");
818 sv_magic(varsv, sv, how, Nullch, 0);
821 SP = PL_stack_base + markoff;
830 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
831 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
834 if ((mg = SvTIED_mg(sv, how))) {
835 SV *obj = SvRV(mg->mg_obj);
838 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
839 isGV(gv) && (cv = GvCV(gv))) {
841 XPUSHs(SvTIED_obj((SV*)gv, mg));
842 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
845 call_sv((SV *)cv, G_VOID);
849 else if (ckWARN(WARN_UNTIE)) {
850 if (mg && SvREFCNT(obj) > 1)
851 Perl_warner(aTHX_ WARN_UNTIE,
852 "untie attempted while %"UVuf" inner references still exist",
853 (UV)SvREFCNT(obj) - 1 ) ;
864 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
865 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
868 if ((mg = SvTIED_mg(sv, how))) {
869 SV *osv = SvTIED_obj(sv, mg);
870 if (osv == mg->mg_obj)
871 osv = sv_mortalcopy(osv);
889 sv = sv_mortalcopy(&PL_sv_no);
890 sv_setpv(sv, "AnyDBM_File");
891 stash = gv_stashsv(sv, FALSE);
892 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
894 require_pv("AnyDBM_File.pm");
896 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
897 DIE(aTHX_ "No dbm on this machine");
907 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
909 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
912 call_sv((SV*)GvCV(gv), G_SCALAR);
915 if (!sv_isobject(TOPs)) {
920 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
923 call_sv((SV*)GvCV(gv), G_SCALAR);
927 if (sv_isobject(TOPs)) {
928 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
929 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
951 struct timeval timebuf;
952 struct timeval *tbuf = &timebuf;
956 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
961 # if BYTEORDER & 0xf0000
962 # define ORDERBYTE (0x88888888 - BYTEORDER)
964 # define ORDERBYTE (0x4444 - BYTEORDER)
970 for (i = 1; i <= 3; i++) {
978 /* little endians can use vecs directly */
979 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
980 # if SELECT_MIN_BITS > 1
981 /* If SELECT_MIN_BITS is greater than one we most probably will want
982 * to align the sizes with SELECT_MIN_BITS/8 because for example
983 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
984 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
985 * on (sets/tests/clears bits) is 32 bits. */
986 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
988 growsize = sizeof(fd_set);
997 masksize = NFDBITS / NBBY;
999 masksize = sizeof(long); /* documented int, everyone seems to use long */
1001 growsize = maxlen + (masksize - (maxlen % masksize));
1002 Zero(&fd_sets[0], 4, char*);
1010 timebuf.tv_sec = (long)value;
1011 value -= (NV)timebuf.tv_sec;
1012 timebuf.tv_usec = (long)(value * 1000000.0);
1015 tbuf = Null(struct timeval*);
1017 for (i = 1; i <= 3; i++) {
1023 else if (!SvPOK(sv))
1024 SvPV_force(sv,n_a); /* force string conversion */
1027 Sv_Grow(sv, growsize);
1031 while (++j <= growsize) {
1035 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1037 New(403, fd_sets[i], growsize, char);
1038 for (offset = 0; offset < growsize; offset += masksize) {
1039 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1040 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1043 fd_sets[i] = SvPVX(sv);
1047 nfound = PerlSock_select(
1049 (Select_fd_set_t) fd_sets[1],
1050 (Select_fd_set_t) fd_sets[2],
1051 (Select_fd_set_t) fd_sets[3],
1053 for (i = 1; i <= 3; i++) {
1056 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1058 for (offset = 0; offset < growsize; offset += masksize) {
1059 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1060 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1062 Safefree(fd_sets[i]);
1069 if (GIMME == G_ARRAY && tbuf) {
1070 value = (NV)(timebuf.tv_sec) +
1071 (NV)(timebuf.tv_usec) / 1000000.0;
1072 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1073 sv_setnv(sv, value);
1077 DIE(aTHX_ "select not implemented");
1082 Perl_setdefout(pTHX_ GV *gv)
1085 (void)SvREFCNT_inc(gv);
1087 SvREFCNT_dec(PL_defoutgv);
1094 GV *newdefout, *egv;
1097 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1099 egv = GvEGV(PL_defoutgv);
1104 XPUSHs(&PL_sv_undef);
1106 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1107 if (gvp && *gvp == egv) {
1108 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1112 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1117 if (!GvIO(newdefout))
1118 gv_IOadd(newdefout);
1119 setdefout(newdefout);
1136 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1137 I32 gimme = GIMME_V;
1139 XPUSHs(SvTIED_obj((SV*)gv, mg));
1142 call_method("GETC", gimme);
1145 if (gimme == G_SCALAR)
1146 SvSetMagicSV_nosteal(TARG, TOPs);
1149 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1152 sv_setpv(TARG, " ");
1153 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1154 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1155 /* Find out how many bytes the char needs */
1156 Size_t len = UTF8SKIP(SvPVX(TARG));
1159 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1160 SvCUR_set(TARG,1+len);
1170 return pp_sysread();
1174 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1176 register PERL_CONTEXT *cx;
1177 I32 gimme = GIMME_V;
1178 AV* padlist = CvPADLIST(cv);
1179 SV** svp = AvARRAY(padlist);
1185 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1187 SAVEVPTR(PL_curpad);
1188 PL_curpad = AvARRAY((AV*)svp[1]);
1190 setdefout(gv); /* locally select filehandle so $% et al work */
1223 SV *tmpsv = sv_newmortal();
1224 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1225 name = SvPV_nolen(tmpsv);
1228 DIE(aTHX_ "Undefined format \"%s\" called", name);
1229 DIE(aTHX_ "Not a format reference");
1232 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1234 IoFLAGS(io) &= ~IOf_DIDTOP;
1235 return doform(cv,gv,PL_op->op_next);
1241 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1242 register IO *io = GvIOp(gv);
1243 PerlIO *ofp = IoOFP(io);
1247 register PERL_CONTEXT *cx;
1249 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1250 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1253 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1254 PL_formtarget != PL_toptarget)
1258 if (!IoTOP_GV(io)) {
1262 if (!IoTOP_NAME(io)) {
1263 if (!IoFMT_NAME(io))
1264 IoFMT_NAME(io) = savepv(GvNAME(gv));
1265 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1266 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1267 if ((topgv && GvFORM(topgv)) ||
1268 !gv_fetchpv("top",FALSE,SVt_PVFM))
1269 IoTOP_NAME(io) = savepv(SvPVX(topname));
1271 IoTOP_NAME(io) = savepv("top");
1273 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1274 if (!topgv || !GvFORM(topgv)) {
1275 IoLINES_LEFT(io) = 100000000;
1278 IoTOP_GV(io) = topgv;
1280 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1281 I32 lines = IoLINES_LEFT(io);
1282 char *s = SvPVX(PL_formtarget);
1283 if (lines <= 0) /* Yow, header didn't even fit!!! */
1285 while (lines-- > 0) {
1286 s = strchr(s, '\n');
1292 STRLEN save = SvCUR(PL_formtarget);
1293 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1294 do_print(PL_formtarget, ofp);
1295 SvCUR_set(PL_formtarget, save);
1296 sv_chop(PL_formtarget, s);
1297 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1300 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1301 do_print(PL_formfeed, ofp);
1302 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1304 PL_formtarget = PL_toptarget;
1305 IoFLAGS(io) |= IOf_DIDTOP;
1308 DIE(aTHX_ "bad top format reference");
1313 SV *sv = sv_newmortal();
1314 gv_efullname4(sv, fgv, Nullch, FALSE);
1315 name = SvPV_nolen(sv);
1318 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1321 DIE(aTHX_ "Undefined top format called");
1325 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1326 return doform(cv,gv,PL_op);
1330 POPBLOCK(cx,PL_curpm);
1336 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1338 /* integrate with report_evil_fh()? */
1341 SV* sv = sv_newmortal();
1342 gv_efullname4(sv, gv, Nullch, FALSE);
1343 name = SvPV_nolen(sv);
1346 Perl_warner(aTHX_ WARN_IO,
1347 "Filehandle %s opened only for input", name);
1349 Perl_warner(aTHX_ WARN_IO,
1350 "Filehandle opened only for input");
1352 else if (ckWARN(WARN_CLOSED))
1353 report_evil_fh(gv, io, PL_op->op_type);
1358 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1359 if (ckWARN(WARN_IO))
1360 Perl_warner(aTHX_ WARN_IO, "page overflow");
1362 if (!do_print(PL_formtarget, fp))
1365 FmLINES(PL_formtarget) = 0;
1366 SvCUR_set(PL_formtarget, 0);
1367 *SvEND(PL_formtarget) = '\0';
1368 if (IoFLAGS(io) & IOf_FLUSH)
1369 (void)PerlIO_flush(fp);
1374 PL_formtarget = PL_bodytarget;
1376 return pop_return();
1381 dSP; dMARK; dORIGMARK;
1388 if (PL_op->op_flags & OPf_STACKED)
1393 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1394 if (MARK == ORIGMARK) {
1397 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1401 *MARK = SvTIED_obj((SV*)gv, mg);
1404 call_method("PRINTF", G_SCALAR);
1407 MARK = ORIGMARK + 1;
1414 if (!(io = GvIO(gv))) {
1415 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1416 report_evil_fh(gv, io, PL_op->op_type);
1417 SETERRNO(EBADF,RMS$_IFI);
1420 else if (!(fp = IoOFP(io))) {
1421 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1422 /* integrate with report_evil_fh()? */
1426 gv_efullname4(sv, gv, Nullch, FALSE);
1427 name = SvPV_nolen(sv);
1430 Perl_warner(aTHX_ WARN_IO,
1431 "Filehandle %s opened only for input", name);
1433 Perl_warner(aTHX_ WARN_IO,
1434 "Filehandle opened only for input");
1436 else if (ckWARN(WARN_CLOSED))
1437 report_evil_fh(gv, io, PL_op->op_type);
1439 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1443 do_sprintf(sv, SP - MARK, MARK + 1);
1444 if (!do_print(sv, fp))
1447 if (IoFLAGS(io) & IOf_FLUSH)
1448 if (PerlIO_flush(fp) == EOF)
1459 PUSHs(&PL_sv_undef);
1480 /* Need TIEHANDLE method ? */
1482 tmps = SvPV(sv, len);
1483 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1484 IoLINES(GvIOp(gv)) = 0;
1488 PUSHs(&PL_sv_undef);
1495 dSP; dMARK; dORIGMARK; dTARGET;
1502 Sock_size_t bufsize;
1511 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1512 (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
1517 *MARK = SvTIED_obj((SV*)gv, mg);
1519 call_method("READ", G_SCALAR);
1532 sv_setpvn(bufsv, "", 0);
1533 length = SvIVx(*++MARK);
1536 offset = SvIVx(*++MARK);
1540 if (!io || !IoIFP(io))
1542 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1543 buffer = SvPVutf8_force(bufsv, blen);
1544 /* UTF8 may not have been set if they are all low bytes */
1548 buffer = SvPV_force(bufsv, blen);
1551 DIE(aTHX_ "Negative length");
1555 if (PL_op->op_type == OP_RECV) {
1556 char namebuf[MAXPATHLEN];
1557 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1558 bufsize = sizeof (struct sockaddr_in);
1560 bufsize = sizeof namebuf;
1562 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1566 buffer = SvGROW(bufsv, length+1);
1567 /* 'offset' means 'flags' here */
1568 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1569 (struct sockaddr *)namebuf, &bufsize);
1573 /* Bogus return without padding */
1574 bufsize = sizeof (struct sockaddr_in);
1576 SvCUR_set(bufsv, count);
1577 *SvEND(bufsv) = '\0';
1578 (void)SvPOK_only(bufsv);
1582 /* This should not be marked tainted if the fp is marked clean */
1583 if (!(IoFLAGS(io) & IOf_UNTAINT))
1584 SvTAINTED_on(bufsv);
1586 sv_setpvn(TARG, namebuf, bufsize);
1591 if (PL_op->op_type == OP_RECV)
1592 DIE(aTHX_ PL_no_sock_func, "recv");
1594 if (DO_UTF8(bufsv)) {
1595 /* offset adjust in characters not bytes */
1596 blen = sv_len_utf8(bufsv);
1600 DIE(aTHX_ "Offset outside string");
1603 if (DO_UTF8(bufsv)) {
1604 /* convert offset-as-chars to offset-as-bytes */
1605 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1608 bufsize = SvCUR(bufsv);
1609 buffer = SvGROW(bufsv, length+offset+1);
1610 if (offset > bufsize) { /* Zero any newly allocated space */
1611 Zero(buffer+bufsize, offset-bufsize, char);
1613 buffer = buffer + offset;
1615 if (PL_op->op_type == OP_SYSREAD) {
1616 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1617 if (IoTYPE(io) == IoTYPE_SOCKET) {
1618 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1624 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1629 #ifdef HAS_SOCKET__bad_code_maybe
1630 if (IoTYPE(io) == IoTYPE_SOCKET) {
1631 char namebuf[MAXPATHLEN];
1632 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1633 bufsize = sizeof (struct sockaddr_in);
1635 bufsize = sizeof namebuf;
1637 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1638 (struct sockaddr *)namebuf, &bufsize);
1643 count = PerlIO_read(IoIFP(io), buffer, length);
1644 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1645 if (count == 0 && PerlIO_error(IoIFP(io)))
1649 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1651 /* integrate with report_evil_fh()? */
1654 SV* sv = sv_newmortal();
1655 gv_efullname4(sv, gv, Nullch, FALSE);
1656 name = SvPV_nolen(sv);
1659 Perl_warner(aTHX_ WARN_IO,
1660 "Filehandle %s opened only for output", name);
1662 Perl_warner(aTHX_ WARN_IO,
1663 "Filehandle opened only for output");
1667 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1668 *SvEND(bufsv) = '\0';
1669 (void)SvPOK_only(bufsv);
1670 if (fp_utf8 && !IN_BYTES) {
1671 /* Look at utf8 we got back and count the characters */
1672 char *bend = buffer + count;
1673 while (buffer < bend) {
1674 STRLEN skip = UTF8SKIP(buffer);
1675 if (buffer+skip > bend) {
1676 /* partial character - try for rest of it */
1677 length = skip - (bend-buffer);
1678 offset = bend - SvPVX(bufsv);
1686 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1687 provided amount read (count) was what was requested (length)
1689 if (got < wanted && count == length) {
1690 length = (wanted-got);
1691 offset = bend - SvPVX(bufsv);
1694 /* return value is character count */
1699 /* This should not be marked tainted if the fp is marked clean */
1700 if (!(IoFLAGS(io) & IOf_UNTAINT))
1701 SvTAINTED_on(bufsv);
1714 int items = (SP - PL_stack_base) - TOPMARK;
1718 sv = sv_2mortal(newSViv(sv_len(*SP)));
1727 dSP; dMARK; dORIGMARK; dTARGET;
1738 if (PL_op->op_type == OP_SYSWRITE
1739 && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
1744 *MARK = SvTIED_obj((SV*)gv, mg);
1746 call_method("WRITE", G_SCALAR);
1757 #if Size_t_size > IVSIZE
1758 length = (Size_t)SvNVx(*++MARK);
1760 length = (Size_t)SvIVx(*++MARK);
1762 if ((SSize_t)length < 0)
1763 DIE(aTHX_ "Negative length");
1766 if (!io || !IoIFP(io)) {
1768 if (ckWARN(WARN_CLOSED))
1769 report_evil_fh(gv, io, PL_op->op_type);
1773 if (PerlIO_isutf8(IoIFP(io))) {
1774 buffer = SvPVutf8(bufsv, blen);
1778 sv_utf8_downgrade(bufsv, FALSE);
1779 buffer = SvPV(bufsv, blen);
1782 if (PL_op->op_type == OP_SYSWRITE) {
1784 if (DO_UTF8(bufsv)) {
1785 /* length and offset are in chars */
1786 blen = sv_len_utf8(bufsv);
1789 offset = SvIVx(*++MARK);
1792 DIE(aTHX_ "Offset outside string");
1794 } else if (offset >= blen && blen > 0)
1795 DIE(aTHX_ "Offset outside string");
1798 if (length > blen - offset)
1799 length = blen - offset;
1800 if (DO_UTF8(bufsv)) {
1801 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1802 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1805 buffer = buffer+offset;
1807 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1808 if (IoTYPE(io) == IoTYPE_SOCKET) {
1809 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1815 /* See the note at doio.c:do_print about filesize limits. --jhi */
1816 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1821 else if (SP > MARK) {
1824 sockbuf = SvPVx(*++MARK, mlen);
1825 /* length is really flags */
1826 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1827 length, (struct sockaddr *)sockbuf, mlen);
1830 /* length is really flags */
1831 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1834 DIE(aTHX_ PL_no_sock_func, "send");
1839 #if Size_t_size > IVSIZE
1853 return pp_sysread();
1863 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1865 gv = PL_last_in_gv = PL_argvgv;
1867 if (io && !IoIFP(io)) {
1868 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1870 IoFLAGS(io) &= ~IOf_START;
1871 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1872 sv_setpvn(GvSV(gv), "-", 1);
1873 SvSETMAGIC(GvSV(gv));
1875 else if (!nextargv(gv))
1880 gv = PL_last_in_gv; /* eof */
1883 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1885 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1887 XPUSHs(SvTIED_obj((SV*)gv, mg));
1890 call_method("EOF", G_SCALAR);
1896 PUSHs(boolSV(!gv || do_eof(gv)));
1909 gv = PL_last_in_gv = (GV*)POPs;
1911 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1913 XPUSHs(SvTIED_obj((SV*)gv, mg));
1916 call_method("TELL", G_SCALAR);
1922 #if LSEEKSIZE > IVSIZE
1923 PUSHn( do_tell(gv) );
1925 PUSHi( do_tell(gv) );
1932 return pp_sysseek();
1940 #if LSEEKSIZE > IVSIZE
1941 Off_t offset = (Off_t)SvNVx(POPs);
1943 Off_t offset = (Off_t)SvIVx(POPs);
1947 gv = PL_last_in_gv = (GV*)POPs;
1949 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1951 XPUSHs(SvTIED_obj((SV*)gv, mg));
1952 #if LSEEKSIZE > IVSIZE
1953 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1955 XPUSHs(sv_2mortal(newSViv(offset)));
1957 XPUSHs(sv_2mortal(newSViv(whence)));
1960 call_method("SEEK", G_SCALAR);
1966 if (PL_op->op_type == OP_SEEK)
1967 PUSHs(boolSV(do_seek(gv, offset, whence)));
1969 Off_t sought = do_sysseek(gv, offset, whence);
1971 PUSHs(&PL_sv_undef);
1974 #if LSEEKSIZE > IVSIZE
1979 : newSVpvn(zero_but_true, ZBTLEN);
1980 PUSHs(sv_2mortal(sv));
1989 /* There seems to be no consensus on the length type of truncate()
1990 * and ftruncate(), both off_t and size_t have supporters. In
1991 * general one would think that when using large files, off_t is
1992 * at least as wide as size_t, so using an off_t should be okay. */
1993 /* XXX Configure probe for the length type of *truncate() needed XXX */
1996 #if Size_t_size > IVSIZE
2001 /* Checking for length < 0 is problematic as the type might or
2002 * might not be signed: if it is not, clever compilers will moan. */
2003 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2005 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2011 if (PL_op->op_flags & OPf_SPECIAL) {
2012 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2015 TAINT_PROPER("truncate");
2016 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2019 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2021 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2023 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2032 if (SvTYPE(sv) == SVt_PVGV) {
2033 tmpgv = (GV*)sv; /* *main::FRED for example */
2036 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2037 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2041 name = SvPV(sv, n_a);
2042 TAINT_PROPER("truncate");
2044 if (truncate(name, len) < 0)
2050 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2053 if (my_chsize(tmpfd, len) < 0)
2055 PerlLIO_close(tmpfd);
2064 SETERRNO(EBADF,RMS$_IFI);
2068 DIE(aTHX_ "truncate not implemented");
2081 unsigned int func = POPu;
2082 int optype = PL_op->op_type;
2086 IO *io = gv ? GvIOn(gv) : 0;
2088 if (!io || !argsv || !IoIFP(io)) {
2089 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2090 report_evil_fh(gv, io, PL_op->op_type);
2091 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2095 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2098 s = SvPV_force(argsv, len);
2099 need = IOCPARM_LEN(func);
2101 s = Sv_Grow(argsv, need + 1);
2102 SvCUR_set(argsv, need);
2105 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2108 retval = SvIV(argsv);
2109 s = INT2PTR(char*,retval); /* ouch */
2112 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2114 if (optype == OP_IOCTL)
2116 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2118 DIE(aTHX_ "ioctl is not implemented");
2122 #if defined(OS2) && defined(__EMX__)
2123 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2125 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2128 DIE(aTHX_ "fcntl is not implemented");
2132 if (s[SvCUR(argsv)] != 17)
2133 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2134 PL_op_name[optype]);
2135 s[SvCUR(argsv)] = 0; /* put our null back */
2136 SvSETMAGIC(argsv); /* Assume it has changed */
2145 PUSHp(zero_but_true, ZBTLEN);
2165 if (gv && (io = GvIO(gv)))
2172 (void)PerlIO_flush(fp);
2173 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2176 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2177 report_evil_fh(gv, io, PL_op->op_type);
2179 SETERRNO(EBADF,RMS$_IFI);
2184 DIE(aTHX_ PL_no_func, "flock()");
2196 int protocol = POPi;
2202 io = gv ? GvIOn(gv) : NULL;
2205 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2206 report_evil_fh(gv, io, PL_op->op_type);
2208 do_close(gv, FALSE);
2209 SETERRNO(EBADF,LIB$_INVARG);
2214 do_close(gv, FALSE);
2216 TAINT_PROPER("socket");
2217 fd = PerlSock_socket(domain, type, protocol);
2220 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2221 IoOFP(io) = PerlIO_fdopen(fd, "w");
2222 IoTYPE(io) = IoTYPE_SOCKET;
2223 if (!IoIFP(io) || !IoOFP(io)) {
2224 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2225 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2226 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2229 #if defined(HAS_FCNTL) && defined(F_SETFD)
2230 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2234 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2239 DIE(aTHX_ PL_no_sock_func, "socket");
2246 #ifdef HAS_SOCKETPAIR
2251 int protocol = POPi;
2258 io1 = gv1 ? GvIOn(gv1) : NULL;
2259 io2 = gv2 ? GvIOn(gv2) : NULL;
2260 if (!gv1 || !gv2 || !io1 || !io2) {
2261 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2263 report_evil_fh(gv1, io1, PL_op->op_type);
2265 report_evil_fh(gv1, io2, PL_op->op_type);
2268 do_close(gv1, FALSE);
2270 do_close(gv2, FALSE);
2275 do_close(gv1, FALSE);
2277 do_close(gv2, FALSE);
2279 TAINT_PROPER("socketpair");
2280 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2282 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2283 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2284 IoTYPE(io1) = IoTYPE_SOCKET;
2285 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2286 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2287 IoTYPE(io2) = IoTYPE_SOCKET;
2288 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2289 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2290 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2291 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2292 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2293 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2294 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2297 #if defined(HAS_FCNTL) && defined(F_SETFD)
2298 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2299 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2304 DIE(aTHX_ PL_no_sock_func, "socketpair");
2312 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2313 extern GETPRIVMODE();
2314 extern GETUSERMODE();
2319 register IO *io = GvIOn(gv);
2323 int mpeprivmode = 0;
2326 if (!io || !IoIFP(io))
2329 addr = SvPV(addrsv, len);
2330 TAINT_PROPER("bind");
2331 #ifdef MPE /* Deal with MPE bind() peculiarities */
2332 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2333 /* The address *MUST* stupidly be zero. */
2334 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2335 /* PRIV mode is required to bind() to ports < 1024. */
2336 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2337 ((struct sockaddr_in *)addr)->sin_port > 0) {
2338 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2343 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2344 (struct sockaddr *)addr, len) >= 0)
2347 #ifdef MPE /* Switch back to USER mode */
2358 if (ckWARN(WARN_CLOSED))
2359 report_evil_fh(gv, io, PL_op->op_type);
2360 SETERRNO(EBADF,SS$_IVCHAN);
2363 DIE(aTHX_ PL_no_sock_func, "bind");
2374 register IO *io = GvIOn(gv);
2377 if (!io || !IoIFP(io))
2380 addr = SvPV(addrsv, len);
2381 TAINT_PROPER("connect");
2382 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2388 if (ckWARN(WARN_CLOSED))
2389 report_evil_fh(gv, io, PL_op->op_type);
2390 SETERRNO(EBADF,SS$_IVCHAN);
2393 DIE(aTHX_ PL_no_sock_func, "connect");
2403 register IO *io = gv ? GvIOn(gv) : NULL;
2405 if (!gv || !io || !IoIFP(io))
2408 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2414 if (ckWARN(WARN_CLOSED))
2415 report_evil_fh(gv, io, PL_op->op_type);
2416 SETERRNO(EBADF,SS$_IVCHAN);
2419 DIE(aTHX_ PL_no_sock_func, "listen");
2431 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2432 Sock_size_t len = sizeof saddr;
2444 if (!gstio || !IoIFP(gstio))
2449 do_close(ngv, FALSE);
2451 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2454 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2455 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2456 IoTYPE(nstio) = IoTYPE_SOCKET;
2457 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2458 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2459 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2460 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2463 #if defined(HAS_FCNTL) && defined(F_SETFD)
2464 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2468 len = sizeof saddr; /* EPOC somehow truncates info */
2469 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2472 PUSHp((char *)&saddr, len);
2476 if (ckWARN(WARN_CLOSED))
2477 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2478 SETERRNO(EBADF,SS$_IVCHAN);
2484 DIE(aTHX_ PL_no_sock_func, "accept");
2494 register IO *io = GvIOn(gv);
2496 if (!io || !IoIFP(io))
2499 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2503 if (ckWARN(WARN_CLOSED))
2504 report_evil_fh(gv, io, PL_op->op_type);
2505 SETERRNO(EBADF,SS$_IVCHAN);
2508 DIE(aTHX_ PL_no_sock_func, "shutdown");
2515 return pp_ssockopt();
2517 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2525 int optype = PL_op->op_type;
2528 unsigned int optname;
2534 if (optype == OP_GSOCKOPT)
2535 sv = sv_2mortal(NEWSV(22, 257));
2538 optname = (unsigned int) POPi;
2539 lvl = (unsigned int) POPi;
2543 if (!io || !IoIFP(io))
2546 fd = PerlIO_fileno(IoIFP(io));
2550 (void)SvPOK_only(sv);
2554 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2569 aint = (int)SvIV(sv);
2573 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2582 if (ckWARN(WARN_CLOSED))
2583 report_evil_fh(gv, io, optype);
2584 SETERRNO(EBADF,SS$_IVCHAN);
2589 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2596 return pp_getpeername();
2598 DIE(aTHX_ PL_no_sock_func, "getsockname");
2606 int optype = PL_op->op_type;
2610 register IO *io = GvIOn(gv);
2613 if (!io || !IoIFP(io))
2616 sv = sv_2mortal(NEWSV(22, 257));
2617 (void)SvPOK_only(sv);
2621 fd = PerlIO_fileno(IoIFP(io));
2623 case OP_GETSOCKNAME:
2624 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2627 case OP_GETPEERNAME:
2628 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2630 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2632 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";
2633 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2634 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2635 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2636 sizeof(u_short) + sizeof(struct in_addr))) {
2643 #ifdef BOGUS_GETNAME_RETURN
2644 /* Interactive Unix, getpeername() and getsockname()
2645 does not return valid namelen */
2646 if (len == BOGUS_GETNAME_RETURN)
2647 len = sizeof(struct sockaddr);
2655 if (ckWARN(WARN_CLOSED))
2656 report_evil_fh(gv, io, optype);
2657 SETERRNO(EBADF,SS$_IVCHAN);
2662 DIE(aTHX_ PL_no_sock_func, "getpeername");
2681 if (PL_op->op_flags & OPf_REF) {
2683 if (PL_op->op_type == OP_LSTAT) {
2684 if (PL_laststype != OP_LSTAT)
2685 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2686 if (ckWARN(WARN_IO) && gv != PL_defgv)
2687 Perl_warner(aTHX_ WARN_IO,
2688 "lstat() on filehandle %s", GvENAME(gv));
2689 /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
2693 if (gv != PL_defgv) {
2694 PL_laststype = OP_STAT;
2696 sv_setpv(PL_statname, "");
2697 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2698 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2700 if (PL_laststatval < 0) {
2701 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2702 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2708 if (SvTYPE(sv) == SVt_PVGV) {
2712 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2716 sv_setpv(PL_statname, SvPV(sv,n_a));
2719 PL_laststype = PL_op->op_type;
2720 if (PL_op->op_type == OP_LSTAT)
2721 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2724 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2725 if (PL_laststatval < 0) {
2726 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2727 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
2733 if (gimme != G_ARRAY) {
2734 if (gimme != G_VOID)
2735 XPUSHs(boolSV(max));
2741 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2742 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2743 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2744 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2745 #if Uid_t_size > IVSIZE
2746 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2748 # if Uid_t_sign <= 0
2749 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2751 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2754 #if Gid_t_size > IVSIZE
2755 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2757 # if Gid_t_sign <= 0
2758 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2760 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2763 #ifdef USE_STAT_RDEV
2764 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2766 PUSHs(sv_2mortal(newSVpvn("", 0)));
2768 #if Off_t_size > IVSIZE
2769 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2771 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2774 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2775 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2776 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2778 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2779 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2780 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2782 #ifdef USE_STAT_BLOCKS
2783 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2784 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2786 PUSHs(sv_2mortal(newSVpvn("", 0)));
2787 PUSHs(sv_2mortal(newSVpvn("", 0)));
2797 #if defined(HAS_ACCESS) && defined(R_OK)
2799 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2800 result = access(TOPpx, R_OK);
2815 if (cando(S_IRUSR, 0, &PL_statcache))
2824 #if defined(HAS_ACCESS) && defined(W_OK)
2826 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2827 result = access(TOPpx, W_OK);
2842 if (cando(S_IWUSR, 0, &PL_statcache))
2851 #if defined(HAS_ACCESS) && defined(X_OK)
2853 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2854 result = access(TOPpx, X_OK);
2869 if (cando(S_IXUSR, 0, &PL_statcache))
2878 #ifdef PERL_EFF_ACCESS_R_OK
2880 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2881 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2896 if (cando(S_IRUSR, 1, &PL_statcache))
2905 #ifdef PERL_EFF_ACCESS_W_OK
2907 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2908 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2923 if (cando(S_IWUSR, 1, &PL_statcache))
2932 #ifdef PERL_EFF_ACCESS_X_OK
2934 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2935 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2950 if (cando(S_IXUSR, 1, &PL_statcache))
2957 I32 result = my_stat();
2966 return pp_ftrowned();
2971 I32 result = my_stat();
2975 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2983 I32 result = my_stat();
2987 if (PL_statcache.st_size == 0)
2994 I32 result = my_stat();
2998 #if Off_t_size > IVSIZE
2999 PUSHn(PL_statcache.st_size);
3001 PUSHi(PL_statcache.st_size);
3008 I32 result = my_stat();
3012 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3018 I32 result = my_stat();
3022 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3028 I32 result = my_stat();
3032 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3038 I32 result = my_stat();
3042 if (S_ISSOCK(PL_statcache.st_mode))
3049 I32 result = my_stat();
3053 if (S_ISCHR(PL_statcache.st_mode))
3060 I32 result = my_stat();
3064 if (S_ISBLK(PL_statcache.st_mode))
3071 I32 result = my_stat();
3075 if (S_ISREG(PL_statcache.st_mode))
3082 I32 result = my_stat();
3086 if (S_ISDIR(PL_statcache.st_mode))
3093 I32 result = my_stat();
3097 if (S_ISFIFO(PL_statcache.st_mode))
3104 I32 result = my_lstat();
3108 if (S_ISLNK(PL_statcache.st_mode))
3117 I32 result = my_stat();
3121 if (PL_statcache.st_mode & S_ISUID)
3131 I32 result = my_stat();
3135 if (PL_statcache.st_mode & S_ISGID)
3145 I32 result = my_stat();
3149 if (PL_statcache.st_mode & S_ISVTX)
3160 char *tmps = Nullch;
3163 if (PL_op->op_flags & OPf_REF)
3165 else if (isGV(TOPs))
3167 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3168 gv = (GV*)SvRV(POPs);
3170 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3172 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3173 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3174 else if (tmps && isDIGIT(*tmps))
3178 if (PerlLIO_isatty(fd))
3183 #if defined(atarist) /* this will work with atariST. Configure will
3184 make guesses for other systems. */
3185 # define FILE_base(f) ((f)->_base)
3186 # define FILE_ptr(f) ((f)->_ptr)
3187 # define FILE_cnt(f) ((f)->_cnt)
3188 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3198 register STDCHAR *s;
3205 if (PL_op->op_flags & OPf_REF)
3207 else if (isGV(TOPs))
3209 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3210 gv = (GV*)SvRV(POPs);
3216 if (gv == PL_defgv) {
3218 io = GvIO(PL_statgv);
3221 goto really_filename;
3226 PL_laststatval = -1;
3227 sv_setpv(PL_statname, "");
3228 io = GvIO(PL_statgv);
3230 if (io && IoIFP(io)) {
3231 if (! PerlIO_has_base(IoIFP(io)))
3232 DIE(aTHX_ "-T and -B not implemented on filehandles");
3233 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3234 if (PL_laststatval < 0)
3236 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3237 if (PL_op->op_type == OP_FTTEXT)
3242 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3243 i = PerlIO_getc(IoIFP(io));
3245 (void)PerlIO_ungetc(IoIFP(io),i);
3247 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3249 len = PerlIO_get_bufsiz(IoIFP(io));
3250 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3251 /* sfio can have large buffers - limit to 512 */
3256 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3258 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3260 SETERRNO(EBADF,RMS$_IFI);
3268 PL_laststatval = -1;
3269 sv_setpv(PL_statname, SvPV(sv, n_a));
3270 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3271 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3272 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
3275 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3276 if (PL_laststatval < 0) {
3277 (void)PerlIO_close(fp);
3280 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3281 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3282 (void)PerlIO_close(fp);
3284 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3285 RETPUSHNO; /* special case NFS directories */
3286 RETPUSHYES; /* null file is anything */
3291 /* now scan s to look for textiness */
3292 /* XXX ASCII dependent code */
3294 #if defined(DOSISH) || defined(USEMYBINMODE)
3295 /* ignore trailing ^Z on short files */
3296 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3300 for (i = 0; i < len; i++, s++) {
3301 if (!*s) { /* null never allowed in text */
3306 else if (!(isPRINT(*s) || isSPACE(*s)))
3309 else if (*s & 128) {
3311 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3314 /* utf8 characters don't count as odd */
3315 if (UTF8_IS_START(*s)) {
3316 int ulen = UTF8SKIP(s);
3317 if (ulen < len - i) {
3319 for (j = 1; j < ulen; j++) {
3320 if (!UTF8_IS_CONTINUATION(s[j]))
3323 --ulen; /* loop does extra increment */
3333 *s != '\n' && *s != '\r' && *s != '\b' &&
3334 *s != '\t' && *s != '\f' && *s != 27)
3339 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3363 if (!tmps || !*tmps) {
3364 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
3366 tmps = SvPV(*svp, n_a);
3368 if (!tmps || !*tmps) {
3369 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
3371 tmps = SvPV(*svp, n_a);
3374 if (!tmps || !*tmps) {
3375 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
3377 tmps = SvPV(*svp, n_a);
3380 TAINT_PROPER("chdir");
3381 PUSHi( PerlDir_chdir(tmps) >= 0 );
3383 /* Clear the DEFAULT element of ENV so we'll get the new value
3385 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3392 dSP; dMARK; dTARGET;
3395 value = (I32)apply(PL_op->op_type, MARK, SP);
3400 DIE(aTHX_ PL_no_func, "Unsupported function chown");
3410 TAINT_PROPER("chroot");
3411 PUSHi( chroot(tmps) >= 0 );
3414 DIE(aTHX_ PL_no_func, "chroot");
3420 dSP; dMARK; dTARGET;
3422 value = (I32)apply(PL_op->op_type, MARK, SP);
3430 dSP; dMARK; dTARGET;
3432 value = (I32)apply(PL_op->op_type, MARK, SP);
3440 dSP; dMARK; dTARGET;
3442 value = (I32)apply(PL_op->op_type, MARK, SP);
3454 char *tmps2 = POPpx;
3455 char *tmps = SvPV(TOPs, n_a);
3456 TAINT_PROPER("rename");
3458 anum = PerlLIO_rename(tmps, tmps2);
3460 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3461 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3464 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3465 (void)UNLINK(tmps2);
3466 if (!(anum = link(tmps, tmps2)))
3467 anum = UNLINK(tmps);
3480 char *tmps2 = POPpx;
3481 char *tmps = SvPV(TOPs, n_a);
3482 TAINT_PROPER("link");
3483 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3485 DIE(aTHX_ PL_no_func, "Unsupported function link");
3495 char *tmps2 = POPpx;
3496 char *tmps = SvPV(TOPs, n_a);
3497 TAINT_PROPER("symlink");
3498 SETi( symlink(tmps, tmps2) >= 0 );
3501 DIE(aTHX_ PL_no_func, "symlink");
3510 char buf[MAXPATHLEN];
3514 #ifndef INCOMPLETE_TAINTS
3518 len = readlink(tmps, buf, sizeof buf);
3526 RETSETUNDEF; /* just pretend it's a normal file */
3530 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3532 S_dooneliner(pTHX_ char *cmd, char *filename)
3534 char *save_filename = filename;
3540 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3541 strcpy(cmdline, cmd);
3542 strcat(cmdline, " ");
3543 for (s = cmdline + strlen(cmdline); *filename; ) {
3548 myfp = PerlProc_popen(cmdline, "r");
3552 SV *tmpsv = sv_newmortal();
3553 /* Need to save/restore 'PL_rs' ?? */
3554 s = sv_gets(tmpsv, myfp, 0);
3555 (void)PerlProc_pclose(myfp);
3559 #ifdef HAS_SYS_ERRLIST
3564 /* you don't see this */
3566 #ifdef HAS_SYS_ERRLIST
3574 if (instr(s, errmsg)) {
3581 #define EACCES EPERM
3583 if (instr(s, "cannot make"))
3584 SETERRNO(EEXIST,RMS$_FEX);
3585 else if (instr(s, "existing file"))
3586 SETERRNO(EEXIST,RMS$_FEX);
3587 else if (instr(s, "ile exists"))
3588 SETERRNO(EEXIST,RMS$_FEX);
3589 else if (instr(s, "non-exist"))
3590 SETERRNO(ENOENT,RMS$_FNF);
3591 else if (instr(s, "does not exist"))
3592 SETERRNO(ENOENT,RMS$_FNF);
3593 else if (instr(s, "not empty"))
3594 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3595 else if (instr(s, "cannot access"))
3596 SETERRNO(EACCES,RMS$_PRV);
3598 SETERRNO(EPERM,RMS$_PRV);
3601 else { /* some mkdirs return no failure indication */
3602 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3603 if (PL_op->op_type == OP_RMDIR)
3608 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3633 tmps = SvPV(TOPs, len);
3634 /* Different operating and file systems take differently to
3635 * trailing slashes. According to POSIX 1003.1 1996 Edition
3636 * any number of trailing slashes should be allowed.
3637 * Thusly we snip them away so that even non-conforming
3638 * systems are happy. */
3639 /* We should probably do this "filtering" for all
3640 * the functions that expect (potentially) directory names:
3641 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3642 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3643 if (len > 1 && tmps[len-1] == '/') {
3644 while (tmps[len] == '/' && len > 1)
3646 tmps = savepvn(tmps, len);
3650 TAINT_PROPER("mkdir");
3652 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3654 SETi( dooneliner("mkdir", tmps) );
3655 oldumask = PerlLIO_umask(0);
3656 PerlLIO_umask(oldumask);
3657 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3671 TAINT_PROPER("rmdir");
3673 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3675 XPUSHi( dooneliner("rmdir", tmps) );
3680 /* Directory calls. */
3685 #if defined(Direntry_t) && defined(HAS_READDIR)
3687 char *dirname = POPpx;
3689 register IO *io = GvIOn(gv);
3695 PerlDir_close(IoDIRP(io));
3696 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3702 SETERRNO(EBADF,RMS$_DIR);
3705 DIE(aTHX_ PL_no_dir_func, "opendir");
3712 #if defined(Direntry_t) && defined(HAS_READDIR)
3713 #if !defined(I_DIRENT) && !defined(VMS)
3714 Direntry_t *readdir (DIR *);
3716 register Direntry_t *dp;
3718 register IO *io = GvIOn(gv);
3721 if (!io || !IoDIRP(io))
3724 if (GIMME == G_ARRAY) {
3726 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3728 sv = newSVpvn(dp->d_name, dp->d_namlen);
3730 sv = newSVpv(dp->d_name, 0);
3732 #ifndef INCOMPLETE_TAINTS
3733 if (!(IoFLAGS(io) & IOf_UNTAINT))
3736 XPUSHs(sv_2mortal(sv));
3740 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3743 sv = newSVpvn(dp->d_name, dp->d_namlen);
3745 sv = newSVpv(dp->d_name, 0);
3747 #ifndef INCOMPLETE_TAINTS
3748 if (!(IoFLAGS(io) & IOf_UNTAINT))
3751 XPUSHs(sv_2mortal(sv));
3757 SETERRNO(EBADF,RMS$_ISI);
3758 if (GIMME == G_ARRAY)
3763 DIE(aTHX_ PL_no_dir_func, "readdir");
3770 #if defined(HAS_TELLDIR) || defined(telldir)
3771 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3772 /* XXX netbsd still seemed to.
3773 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3774 --JHI 1999-Feb-02 */
3775 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3776 long telldir (DIR *);
3779 register IO *io = GvIOn(gv);
3781 if (!io || !IoDIRP(io))
3784 PUSHi( PerlDir_tell(IoDIRP(io)) );
3788 SETERRNO(EBADF,RMS$_ISI);
3791 DIE(aTHX_ PL_no_dir_func, "telldir");
3798 #if defined(HAS_SEEKDIR) || defined(seekdir)
3801 register IO *io = GvIOn(gv);
3803 if (!io || !IoDIRP(io))
3806 (void)PerlDir_seek(IoDIRP(io), along);
3811 SETERRNO(EBADF,RMS$_ISI);
3814 DIE(aTHX_ PL_no_dir_func, "seekdir");
3821 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3823 register IO *io = GvIOn(gv);
3825 if (!io || !IoDIRP(io))
3828 (void)PerlDir_rewind(IoDIRP(io));
3832 SETERRNO(EBADF,RMS$_ISI);
3835 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3842 #if defined(Direntry_t) && defined(HAS_READDIR)
3844 register IO *io = GvIOn(gv);
3846 if (!io || !IoDIRP(io))
3849 #ifdef VOID_CLOSEDIR
3850 PerlDir_close(IoDIRP(io));
3852 if (PerlDir_close(IoDIRP(io)) < 0) {
3853 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3862 SETERRNO(EBADF,RMS$_IFI);
3865 DIE(aTHX_ PL_no_dir_func, "closedir");
3869 /* Process control. */
3879 PERL_FLUSHALL_FOR_CHILD;
3885 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV)))
3886 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3887 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3892 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3897 PERL_FLUSHALL_FOR_CHILD;
3898 childpid = PerlProc_fork();
3904 DIE(aTHX_ PL_no_func, "Unsupported function fork");
3911 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3916 #ifdef PERL_OLD_SIGNALS
3917 childpid = wait4pid(-1, &argflags, 0);
3919 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3923 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3924 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3925 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3927 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3932 DIE(aTHX_ PL_no_func, "Unsupported function wait");
3938 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3946 #ifdef PERL_OLD_SIGNALS
3947 childpid = wait4pid(childpid, &argflags, optype);
3949 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
3953 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3954 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3955 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3957 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3962 DIE(aTHX_ PL_no_func, "Unsupported function waitpid");
3968 dSP; dMARK; dORIGMARK; dTARGET;
3973 Sigsave_t ihand,qhand; /* place to save signals during system() */
3978 if (SP - MARK == 1) {
3980 (void)SvPV_nolen(TOPs); /* stringify for taint check */
3982 TAINT_PROPER("system");
3985 PERL_FLUSHALL_FOR_CHILD;
3986 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) && !defined(__CYGWIN__) || defined(PERL_MICRO)
3987 if (PerlProc_pipe(pp) >= 0)
3989 while ((childpid = vfork()) == -1) {
3990 if (errno != EAGAIN) {
3995 PerlLIO_close(pp[0]);
3996 PerlLIO_close(pp[1]);
4004 PerlLIO_close(pp[1]);
4006 rsignal_save(SIGINT, SIG_IGN, &ihand);
4007 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4010 result = wait4pid(childpid, &status, 0);
4011 } while (result == -1 && errno == EINTR);
4013 (void)rsignal_restore(SIGINT, &ihand);
4014 (void)rsignal_restore(SIGQUIT, &qhand);
4016 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4017 do_execfree(); /* free any memory child malloced on vfork */
4023 while (n < sizeof(int)) {
4024 n1 = PerlLIO_read(pp[0],
4025 (void*)(((char*)&errkid)+n),
4031 PerlLIO_close(pp[0]);
4032 if (n) { /* Error */
4033 if (n != sizeof(int))
4034 DIE(aTHX_ "panic: kid popen errno read");
4035 errno = errkid; /* Propagate errno from kid */
4036 STATUS_CURRENT = -1;
4039 PUSHi(STATUS_CURRENT);
4043 PerlLIO_close(pp[0]);
4044 #if defined(HAS_FCNTL) && defined(F_SETFD)
4045 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4048 if (PL_op->op_flags & OPf_STACKED) {
4049 SV *really = *++MARK;
4050 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4052 else if (SP - MARK != 1)
4053 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4055 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4058 #else /* ! FORK or VMS or OS/2 */
4061 if (PL_op->op_flags & OPf_STACKED) {
4062 SV *really = *++MARK;
4063 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4065 else if (SP - MARK != 1)
4066 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4068 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4070 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4072 STATUS_NATIVE_SET(value);
4075 PUSHi(result ? value : STATUS_CURRENT);
4076 #endif /* !FORK or VMS */
4082 dSP; dMARK; dORIGMARK; dTARGET;
4086 PERL_FLUSHALL_FOR_CHILD;
4087 if (PL_op->op_flags & OPf_STACKED) {
4088 SV *really = *++MARK;
4089 value = (I32)do_aexec(really, MARK, SP);
4091 else if (SP - MARK != 1)
4093 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4097 (void ) do_aspawn(Nullsv, MARK, SP);
4101 value = (I32)do_aexec(Nullsv, MARK, SP);
4106 (void)SvPV_nolen(*SP); /* stringify for taint check */
4108 TAINT_PROPER("exec");
4111 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4114 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4117 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4122 #if !defined(HAS_FORK) && defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4134 dSP; dMARK; dTARGET;
4137 value = (I32)apply(PL_op->op_type, MARK, SP);
4142 DIE(aTHX_ PL_no_func, "Unsupported function kill");
4150 XPUSHi( getppid() );
4153 DIE(aTHX_ PL_no_func, "getppid");
4169 pgrp = (I32)BSD_GETPGRP(pid);
4171 if (pid != 0 && pid != PerlProc_getpid())
4172 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4178 DIE(aTHX_ PL_no_func, "getpgrp()");
4197 TAINT_PROPER("setpgrp");
4199 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4201 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4202 || (pid != 0 && pid != PerlProc_getpid()))
4204 DIE(aTHX_ "setpgrp can't take arguments");
4206 SETi( setpgrp() >= 0 );
4207 #endif /* USE_BSDPGRP */
4210 DIE(aTHX_ PL_no_func, "setpgrp()");
4217 #ifdef HAS_GETPRIORITY
4220 SETi( getpriority(which, who) );
4223 DIE(aTHX_ PL_no_func, "getpriority()");
4230 #ifdef HAS_SETPRIORITY
4234 TAINT_PROPER("setpriority");
4235 SETi( setpriority(which, who, niceval) >= 0 );
4238 DIE(aTHX_ PL_no_func, "setpriority()");
4248 XPUSHn( time(Null(Time_t*)) );
4250 XPUSHi( time(Null(Time_t*)) );
4255 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4256 to HZ. Probably. For now, assume that if the system
4257 defines HZ, it does so correctly. (Will this break
4259 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4260 it's supported. --AD 9/96.
4276 DIE(aTHX_ "times not implemented");
4281 (void)PerlProc_times(&PL_timesbuf);
4283 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4284 /* struct tms, though same data */
4288 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4289 if (GIMME == G_ARRAY) {
4290 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4291 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4292 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
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, "Unsupported function 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");
4533 #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");
4642 #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");
4730 #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");
4813 #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");
4903 #ifdef HAS_SETHOSTENT
4904 PerlSock_sethostent(TOPi);
4907 DIE(aTHX_ PL_no_sock_func, "sethostent");
4914 #ifdef HAS_SETNETENT
4915 PerlSock_setnetent(TOPi);
4918 DIE(aTHX_ PL_no_sock_func, "setnetent");
4925 #ifdef HAS_SETPROTOENT
4926 PerlSock_setprotoent(TOPi);
4929 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4936 #ifdef HAS_SETSERVENT
4937 PerlSock_setservent(TOPi);
4940 DIE(aTHX_ PL_no_sock_func, "setservent");
4947 #ifdef HAS_ENDHOSTENT
4948 PerlSock_endhostent();
4952 DIE(aTHX_ PL_no_sock_func, "endhostent");
4959 #ifdef HAS_ENDNETENT
4960 PerlSock_endnetent();
4964 DIE(aTHX_ PL_no_sock_func, "endnetent");
4971 #ifdef HAS_ENDPROTOENT
4972 PerlSock_endprotoent();
4976 DIE(aTHX_ PL_no_sock_func, "endprotoent");
4983 #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");
5227 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5231 DIE(aTHX_ PL_no_func, "setpwent");
5238 #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");
5326 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5330 DIE(aTHX_ PL_no_func, "setgrent");
5337 #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 */