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>
108 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
111 # define my_chsize PerlLIO_chsize
116 #else /* no flock() */
118 /* fcntl.h might not have been included, even if it exists, because
119 the current Configure only sets I_FCNTL if it's needed to pick up
120 the *_OK constants. Make sure it has been included before testing
121 the fcntl() locking constants. */
122 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
126 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
127 # define FLOCK fcntl_emulate_flock
128 # define FCNTL_EMULATE_FLOCK
129 # else /* no flock() or fcntl(F_SETLK,...) */
131 # define FLOCK lockf_emulate_flock
132 # define LOCKF_EMULATE_FLOCK
134 # endif /* no flock() or fcntl(F_SETLK,...) */
137 static int FLOCK (int, int);
140 * These are the flock() constants. Since this sytems doesn't have
141 * flock(), the values of the constants are probably not available.
155 # endif /* emulating flock() */
157 #endif /* no flock() */
160 static char zero_but_true[ZBTLEN + 1] = "0 but true";
162 #if defined(I_SYS_ACCESS) && !defined(R_OK)
163 # include <sys/access.h>
166 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
167 # define FD_CLOEXEC 1 /* NeXT needs this */
170 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
171 #undef PERL_EFF_ACCESS_W_OK
172 #undef PERL_EFF_ACCESS_X_OK
174 /* F_OK unused: if stat() cannot find it... */
176 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
177 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
178 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
179 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
180 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
183 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
184 # ifdef I_SYS_SECURITY
185 # include <sys/security.h>
189 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
190 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
191 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
194 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
195 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
196 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
200 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
202 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
203 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
204 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
207 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
208 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
209 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
212 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
214 Uid_t ruid = getuid();
215 Uid_t euid = geteuid();
216 Gid_t rgid = getgid();
217 Gid_t egid = getegid();
221 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
222 Perl_croak(aTHX_ "switching effective uid is not implemented");
225 if (setreuid(euid, ruid))
228 if (setresuid(euid, ruid, (Uid_t)-1))
231 Perl_croak(aTHX_ "entering effective uid failed");
234 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
235 Perl_croak(aTHX_ "switching effective gid is not implemented");
238 if (setregid(egid, rgid))
241 if (setresgid(egid, rgid, (Gid_t)-1))
244 Perl_croak(aTHX_ "entering effective gid failed");
247 res = access(path, mode);
250 if (setreuid(ruid, euid))
253 if (setresuid(ruid, euid, (Uid_t)-1))
256 Perl_croak(aTHX_ "leaving effective uid failed");
259 if (setregid(rgid, egid))
262 if (setresgid(rgid, egid, (Gid_t)-1))
265 Perl_croak(aTHX_ "leaving effective gid failed");
270 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
271 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
272 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
275 #if !defined(PERL_EFF_ACCESS_R_OK)
276 /* With it or without it: anyway you get a warning: either that
277 it is unused, or it is declared static and never defined.
280 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
282 Perl_croak(aTHX_ "switching effective uid is not implemented");
298 if (PL_op->op_private & OPpOPEN_IN_RAW)
300 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
302 fp = PerlProc_popen(tmps, mode);
305 if (PL_curcop->cop_io) {
306 type = SvPV_nolen(PL_curcop->cop_io);
309 PerlIO_apply_layers(aTHX_ fp,mode,type);
311 if (gimme == G_VOID) {
313 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
317 else if (gimme == G_SCALAR) {
318 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
319 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
330 if (sv_gets(sv, fp, 0) == Nullch) {
334 XPUSHs(sv_2mortal(sv));
335 if (SvLEN(sv) - SvCUR(sv) > 20) {
336 SvLEN_set(sv, SvCUR(sv)+1);
337 Renew(SvPVX(sv), SvLEN(sv), char);
342 STATUS_NATIVE_SET(PerlProc_pclose(fp));
343 TAINT; /* "I believe that this is not gratuitous!" */
346 STATUS_NATIVE_SET(-1);
347 if (gimme == G_SCALAR)
357 tryAMAGICunTARGET(iter, -1);
359 /* Note that we only ever get here if File::Glob fails to load
360 * without at the same time croaking, for some reason, or if
361 * perl was built with PERL_EXTERNAL_GLOB */
368 * The external globbing program may use things we can't control,
369 * so for security reasons we must assume the worst.
372 taint_proper(PL_no_security, "glob");
376 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
377 PL_last_in_gv = (GV*)*PL_stack_sp--;
379 SAVESPTR(PL_rs); /* This is not permanent, either. */
380 PL_rs = sv_2mortal(newSVpvn("\000", 1));
383 *SvPVX(PL_rs) = '\n';
387 result = do_readline();
392 #if 0 /* XXX never used! */
396 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
397 return do_readline();
403 PL_last_in_gv = cGVOP_gv;
404 return do_readline();
413 if (SP - MARK != 1) {
415 do_join(TARG, &PL_sv_no, MARK, SP);
422 tmps = SvPV(tmpsv, len);
425 (void)SvUPGRADE(error, SVt_PV);
426 if (SvPOK(error) && SvCUR(error))
427 sv_catpv(error, "\t...caught");
429 tmps = SvPV(tmpsv, len);
432 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
434 Perl_warn(aTHX_ "%"SVf, tmpsv);
445 if (SP - MARK != 1) {
447 do_join(TARG, &PL_sv_no, MARK, SP);
449 tmps = SvPV(tmpsv, len);
455 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
459 (void)SvUPGRADE(error, SVt_PV);
460 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
462 SvSetSV(error,tmpsv);
463 else if (sv_isobject(error)) {
464 HV *stash = SvSTASH(SvRV(error));
465 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
467 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
468 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
475 call_sv((SV*)GvCV(gv),
476 G_SCALAR|G_EVAL|G_KEEPERR);
477 sv_setsv(error,*PL_stack_sp--);
483 if (SvPOK(error) && SvCUR(error))
484 sv_catpv(error, "\t...propagated");
486 tmps = SvPV(tmpsv, len);
490 tmpsv = sv_2mortal(newSVpvn("Died", 4));
492 DIE(aTHX_ "%"SVf, tmpsv);
511 DIE(aTHX_ PL_no_usym, "filehandle");
513 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
515 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
516 /* Method's args are same as ours ... */
517 /* ... except handle is replaced by the object */
518 *MARK-- = SvTIED_obj((SV*)gv, mg);
522 call_method("OPEN", G_SCALAR);
535 tmps = SvPV(sv, len);
536 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
539 PUSHi( (I32)PL_forkprocess );
540 else if (PL_forkprocess == 0) /* we are a new child */
558 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
560 XPUSHs(SvTIED_obj((SV*)gv, mg));
563 call_method("CLOSE", G_SCALAR);
569 PUSHs(boolSV(do_close(gv, TRUE)));
589 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
590 DIE(aTHX_ PL_no_usym, "filehandle");
595 do_close(rgv, FALSE);
597 do_close(wgv, FALSE);
599 if (PerlProc_pipe(fd) < 0)
602 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
603 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
604 IoIFP(wstio) = IoOFP(wstio);
605 IoTYPE(rstio) = IoTYPE_RDONLY;
606 IoTYPE(wstio) = IoTYPE_WRONLY;
608 if (!IoIFP(rstio) || !IoOFP(wstio)) {
609 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
610 else PerlLIO_close(fd[0]);
611 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
612 else PerlLIO_close(fd[1]);
615 #if defined(HAS_FCNTL) && defined(F_SETFD)
616 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
617 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
624 DIE(aTHX_ PL_no_func, "pipe");
640 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
642 XPUSHs(SvTIED_obj((SV*)gv, mg));
645 call_method("FILENO", G_SCALAR);
651 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
652 /* Can't do this because people seem to do things like
653 defined(fileno($foo)) to check whether $foo is a valid fh.
654 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
655 report_evil_fh(gv, io, PL_op->op_type);
660 PUSHi(PerlIO_fileno(fp));
671 anum = PerlLIO_umask(0);
672 (void)PerlLIO_umask(anum);
675 anum = PerlLIO_umask(POPi);
676 TAINT_PROPER("umask");
679 /* Only DIE if trying to restrict permissions on `user' (self).
680 * Otherwise it's harmless and more useful to just return undef
681 * since 'group' and 'other' concepts probably don't exist here. */
682 if (MAXARG >= 1 && (POPi & 0700))
683 DIE(aTHX_ "umask not implemented");
684 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);
726 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
727 (discp) ? SvPV_nolen(discp) : Nullch))
741 I32 markoff = MARK - PL_stack_base;
743 int how = PERL_MAGIC_tied;
748 switch(SvTYPE(varsv)) {
750 methname = "TIEHASH";
753 methname = "TIEARRAY";
756 #ifdef GV_UNIQUE_CHECK
757 if (GvUNIQUE((GV*)varsv)) {
758 Perl_croak(aTHX_ "Attempt to tie unique GV");
761 methname = "TIEHANDLE";
762 how = PERL_MAGIC_tiedscalar;
765 methname = "TIESCALAR";
766 how = PERL_MAGIC_tiedscalar;
770 if (sv_isobject(*MARK)) {
772 PUSHSTACKi(PERLSI_MAGIC);
778 call_method(methname, G_SCALAR);
781 /* Not clear why we don't call call_method here too.
782 * perhaps to get different error message ?
784 stash = gv_stashsv(*MARK, FALSE);
785 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
786 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
787 methname, SvPV(*MARK,n_a));
790 PUSHSTACKi(PERLSI_MAGIC);
796 call_sv((SV*)GvCV(gv), G_SCALAR);
802 if (sv_isobject(sv)) {
803 sv_unmagic(varsv, how);
804 /* Croak if a self-tie on an aggregate is attempted. */
805 if (varsv == SvRV(sv) &&
806 (SvTYPE(sv) == SVt_PVAV ||
807 SvTYPE(sv) == SVt_PVHV))
809 "Self-ties of arrays and hashes are not supported");
810 sv_magic(varsv, sv, how, Nullch, 0);
813 SP = PL_stack_base + markoff;
822 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
823 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
826 if ((mg = SvTIED_mg(sv, how))) {
827 SV *obj = SvRV(mg->mg_obj);
830 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
831 isGV(gv) && (cv = GvCV(gv))) {
833 XPUSHs(SvTIED_obj((SV*)gv, mg));
834 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
837 call_sv((SV *)cv, G_VOID);
841 else if (ckWARN(WARN_UNTIE)) {
842 if (mg && SvREFCNT(obj) > 1)
843 Perl_warner(aTHX_ WARN_UNTIE,
844 "untie attempted while %"UVuf" inner references still exist",
845 (UV)SvREFCNT(obj) - 1 ) ;
856 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
857 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
860 if ((mg = SvTIED_mg(sv, how))) {
861 SV *osv = SvTIED_obj(sv, mg);
862 if (osv == mg->mg_obj)
863 osv = sv_mortalcopy(osv);
881 sv = sv_mortalcopy(&PL_sv_no);
882 sv_setpv(sv, "AnyDBM_File");
883 stash = gv_stashsv(sv, FALSE);
884 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
886 require_pv("AnyDBM_File.pm");
888 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
889 DIE(aTHX_ "No dbm on this machine");
899 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
901 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
904 call_sv((SV*)GvCV(gv), G_SCALAR);
907 if (!sv_isobject(TOPs)) {
912 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
915 call_sv((SV*)GvCV(gv), G_SCALAR);
919 if (sv_isobject(TOPs)) {
920 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
921 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
943 struct timeval timebuf;
944 struct timeval *tbuf = &timebuf;
948 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
953 # if BYTEORDER & 0xf0000
954 # define ORDERBYTE (0x88888888 - BYTEORDER)
956 # define ORDERBYTE (0x4444 - BYTEORDER)
962 for (i = 1; i <= 3; i++) {
970 /* little endians can use vecs directly */
971 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
972 # if SELECT_MIN_BITS > 1
973 /* If SELECT_MIN_BITS is greater than one we most probably will want
974 * to align the sizes with SELECT_MIN_BITS/8 because for example
975 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
976 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
977 * on (sets/tests/clears bits) is 32 bits. */
978 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
980 growsize = sizeof(fd_set);
989 masksize = NFDBITS / NBBY;
991 masksize = sizeof(long); /* documented int, everyone seems to use long */
993 growsize = maxlen + (masksize - (maxlen % masksize));
994 Zero(&fd_sets[0], 4, char*);
1002 timebuf.tv_sec = (long)value;
1003 value -= (NV)timebuf.tv_sec;
1004 timebuf.tv_usec = (long)(value * 1000000.0);
1007 tbuf = Null(struct timeval*);
1009 for (i = 1; i <= 3; i++) {
1015 else if (!SvPOK(sv))
1016 SvPV_force(sv,n_a); /* force string conversion */
1019 Sv_Grow(sv, growsize);
1023 while (++j <= growsize) {
1027 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1029 New(403, fd_sets[i], growsize, char);
1030 for (offset = 0; offset < growsize; offset += masksize) {
1031 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1032 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1035 fd_sets[i] = SvPVX(sv);
1039 nfound = PerlSock_select(
1041 (Select_fd_set_t) fd_sets[1],
1042 (Select_fd_set_t) fd_sets[2],
1043 (Select_fd_set_t) fd_sets[3],
1045 for (i = 1; i <= 3; i++) {
1048 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1050 for (offset = 0; offset < growsize; offset += masksize) {
1051 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1052 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1054 Safefree(fd_sets[i]);
1061 if (GIMME == G_ARRAY && tbuf) {
1062 value = (NV)(timebuf.tv_sec) +
1063 (NV)(timebuf.tv_usec) / 1000000.0;
1064 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1065 sv_setnv(sv, value);
1069 DIE(aTHX_ "select not implemented");
1074 Perl_setdefout(pTHX_ GV *gv)
1077 (void)SvREFCNT_inc(gv);
1079 SvREFCNT_dec(PL_defoutgv);
1086 GV *newdefout, *egv;
1089 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1091 egv = GvEGV(PL_defoutgv);
1096 XPUSHs(&PL_sv_undef);
1098 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1099 if (gvp && *gvp == egv) {
1100 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1104 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1109 if (!GvIO(newdefout))
1110 gv_IOadd(newdefout);
1111 setdefout(newdefout);
1128 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1129 I32 gimme = GIMME_V;
1131 XPUSHs(SvTIED_obj((SV*)gv, mg));
1134 call_method("GETC", gimme);
1137 if (gimme == G_SCALAR)
1138 SvSetMagicSV_nosteal(TARG, TOPs);
1141 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1144 sv_setpv(TARG, " ");
1145 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1146 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1147 /* Find out how many bytes the char needs */
1148 Size_t len = UTF8SKIP(SvPVX(TARG));
1151 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1152 SvCUR_set(TARG,1+len);
1162 return pp_sysread();
1166 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1168 register PERL_CONTEXT *cx;
1169 I32 gimme = GIMME_V;
1170 AV* padlist = CvPADLIST(cv);
1171 SV** svp = AvARRAY(padlist);
1177 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1179 SAVEVPTR(PL_curpad);
1180 PL_curpad = AvARRAY((AV*)svp[1]);
1182 setdefout(gv); /* locally select filehandle so $% et al work */
1215 SV *tmpsv = sv_newmortal();
1216 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1217 name = SvPV_nolen(tmpsv);
1220 DIE(aTHX_ "Undefined format \"%s\" called", name);
1221 DIE(aTHX_ "Not a format reference");
1224 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1226 IoFLAGS(io) &= ~IOf_DIDTOP;
1227 return doform(cv,gv,PL_op->op_next);
1233 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1234 register IO *io = GvIOp(gv);
1235 PerlIO *ofp = IoOFP(io);
1239 register PERL_CONTEXT *cx;
1241 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1242 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1245 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1246 PL_formtarget != PL_toptarget)
1250 if (!IoTOP_GV(io)) {
1254 if (!IoTOP_NAME(io)) {
1255 if (!IoFMT_NAME(io))
1256 IoFMT_NAME(io) = savepv(GvNAME(gv));
1257 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1258 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1259 if ((topgv && GvFORM(topgv)) ||
1260 !gv_fetchpv("top",FALSE,SVt_PVFM))
1261 IoTOP_NAME(io) = savepv(SvPVX(topname));
1263 IoTOP_NAME(io) = savepv("top");
1265 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1266 if (!topgv || !GvFORM(topgv)) {
1267 IoLINES_LEFT(io) = 100000000;
1270 IoTOP_GV(io) = topgv;
1272 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1273 I32 lines = IoLINES_LEFT(io);
1274 char *s = SvPVX(PL_formtarget);
1275 if (lines <= 0) /* Yow, header didn't even fit!!! */
1277 while (lines-- > 0) {
1278 s = strchr(s, '\n');
1284 STRLEN save = SvCUR(PL_formtarget);
1285 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1286 do_print(PL_formtarget, ofp);
1287 SvCUR_set(PL_formtarget, save);
1288 sv_chop(PL_formtarget, s);
1289 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1292 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1293 do_print(PL_formfeed, ofp);
1294 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1296 PL_formtarget = PL_toptarget;
1297 IoFLAGS(io) |= IOf_DIDTOP;
1300 DIE(aTHX_ "bad top format reference");
1305 SV *sv = sv_newmortal();
1306 gv_efullname4(sv, fgv, Nullch, FALSE);
1307 name = SvPV_nolen(sv);
1310 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1313 DIE(aTHX_ "Undefined top format called");
1317 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1318 return doform(cv,gv,PL_op);
1322 POPBLOCK(cx,PL_curpm);
1328 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1330 /* integrate with report_evil_fh()? */
1333 SV* sv = sv_newmortal();
1334 gv_efullname4(sv, gv, Nullch, FALSE);
1335 name = SvPV_nolen(sv);
1338 Perl_warner(aTHX_ WARN_IO,
1339 "Filehandle %s opened only for input", name);
1341 Perl_warner(aTHX_ WARN_IO,
1342 "Filehandle opened only for input");
1344 else if (ckWARN(WARN_CLOSED))
1345 report_evil_fh(gv, io, PL_op->op_type);
1350 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1351 if (ckWARN(WARN_IO))
1352 Perl_warner(aTHX_ WARN_IO, "page overflow");
1354 if (!do_print(PL_formtarget, fp))
1357 FmLINES(PL_formtarget) = 0;
1358 SvCUR_set(PL_formtarget, 0);
1359 *SvEND(PL_formtarget) = '\0';
1360 if (IoFLAGS(io) & IOf_FLUSH)
1361 (void)PerlIO_flush(fp);
1366 PL_formtarget = PL_bodytarget;
1368 return pop_return();
1373 dSP; dMARK; dORIGMARK;
1380 if (PL_op->op_flags & OPf_STACKED)
1385 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1386 if (MARK == ORIGMARK) {
1389 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1393 *MARK = SvTIED_obj((SV*)gv, mg);
1396 call_method("PRINTF", G_SCALAR);
1399 MARK = ORIGMARK + 1;
1406 if (!(io = GvIO(gv))) {
1407 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1408 report_evil_fh(gv, io, PL_op->op_type);
1409 SETERRNO(EBADF,RMS$_IFI);
1412 else if (!(fp = IoOFP(io))) {
1413 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1414 /* integrate with report_evil_fh()? */
1418 gv_efullname4(sv, gv, Nullch, FALSE);
1419 name = SvPV_nolen(sv);
1422 Perl_warner(aTHX_ WARN_IO,
1423 "Filehandle %s opened only for input", name);
1425 Perl_warner(aTHX_ WARN_IO,
1426 "Filehandle opened only for input");
1428 else if (ckWARN(WARN_CLOSED))
1429 report_evil_fh(gv, io, PL_op->op_type);
1431 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1435 do_sprintf(sv, SP - MARK, MARK + 1);
1436 if (!do_print(sv, fp))
1439 if (IoFLAGS(io) & IOf_FLUSH)
1440 if (PerlIO_flush(fp) == EOF)
1451 PUSHs(&PL_sv_undef);
1472 /* Need TIEHANDLE method ? */
1474 tmps = SvPV(sv, len);
1475 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1476 IoLINES(GvIOp(gv)) = 0;
1480 PUSHs(&PL_sv_undef);
1487 dSP; dMARK; dORIGMARK; dTARGET;
1494 Sock_size_t bufsize;
1503 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1504 (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
1509 *MARK = SvTIED_obj((SV*)gv, mg);
1511 call_method("READ", G_SCALAR);
1524 sv_setpvn(bufsv, "", 0);
1525 length = SvIVx(*++MARK);
1528 offset = SvIVx(*++MARK);
1532 if (!io || !IoIFP(io))
1534 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1535 buffer = SvPVutf8_force(bufsv, blen);
1536 /* UTF8 may not have been set if they are all low bytes */
1540 buffer = SvPV_force(bufsv, blen);
1543 DIE(aTHX_ "Negative length");
1547 if (PL_op->op_type == OP_RECV) {
1548 char namebuf[MAXPATHLEN];
1549 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1550 bufsize = sizeof (struct sockaddr_in);
1552 bufsize = sizeof namebuf;
1554 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1558 buffer = SvGROW(bufsv, length+1);
1559 /* 'offset' means 'flags' here */
1560 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1561 (struct sockaddr *)namebuf, &bufsize);
1565 /* Bogus return without padding */
1566 bufsize = sizeof (struct sockaddr_in);
1568 SvCUR_set(bufsv, count);
1569 *SvEND(bufsv) = '\0';
1570 (void)SvPOK_only(bufsv);
1574 /* This should not be marked tainted if the fp is marked clean */
1575 if (!(IoFLAGS(io) & IOf_UNTAINT))
1576 SvTAINTED_on(bufsv);
1578 sv_setpvn(TARG, namebuf, bufsize);
1583 if (PL_op->op_type == OP_RECV)
1584 DIE(aTHX_ PL_no_sock_func, "recv");
1586 if (DO_UTF8(bufsv)) {
1587 /* offset adjust in characters not bytes */
1588 blen = sv_len_utf8(bufsv);
1592 DIE(aTHX_ "Offset outside string");
1595 if (DO_UTF8(bufsv)) {
1596 /* convert offset-as-chars to offset-as-bytes */
1597 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1600 bufsize = SvCUR(bufsv);
1601 buffer = SvGROW(bufsv, length+offset+1);
1602 if (offset > bufsize) { /* Zero any newly allocated space */
1603 Zero(buffer+bufsize, offset-bufsize, char);
1605 buffer = buffer + offset;
1607 if (PL_op->op_type == OP_SYSREAD) {
1608 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1609 if (IoTYPE(io) == IoTYPE_SOCKET) {
1610 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1616 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1621 #ifdef HAS_SOCKET__bad_code_maybe
1622 if (IoTYPE(io) == IoTYPE_SOCKET) {
1623 char namebuf[MAXPATHLEN];
1624 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1625 bufsize = sizeof (struct sockaddr_in);
1627 bufsize = sizeof namebuf;
1629 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1630 (struct sockaddr *)namebuf, &bufsize);
1635 count = PerlIO_read(IoIFP(io), buffer, length);
1636 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1637 if (count == 0 && PerlIO_error(IoIFP(io)))
1641 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1643 /* integrate with report_evil_fh()? */
1646 SV* sv = sv_newmortal();
1647 gv_efullname4(sv, gv, Nullch, FALSE);
1648 name = SvPV_nolen(sv);
1651 Perl_warner(aTHX_ WARN_IO,
1652 "Filehandle %s opened only for output", name);
1654 Perl_warner(aTHX_ WARN_IO,
1655 "Filehandle opened only for output");
1659 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1660 *SvEND(bufsv) = '\0';
1661 (void)SvPOK_only(bufsv);
1662 if (fp_utf8 && !IN_BYTES) {
1663 /* Look at utf8 we got back and count the characters */
1664 char *bend = buffer + count;
1665 while (buffer < bend) {
1666 STRLEN skip = UTF8SKIP(buffer);
1667 if (buffer+skip > bend) {
1668 /* partial character - try for rest of it */
1669 length = skip - (bend-buffer);
1670 offset = bend - SvPVX(bufsv);
1678 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1679 provided amount read (count) was what was requested (length)
1681 if (got < wanted && count == length) {
1682 length = (wanted-got);
1683 offset = bend - SvPVX(bufsv);
1686 /* return value is character count */
1691 /* This should not be marked tainted if the fp is marked clean */
1692 if (!(IoFLAGS(io) & IOf_UNTAINT))
1693 SvTAINTED_on(bufsv);
1706 int items = (SP - PL_stack_base) - TOPMARK;
1710 sv = sv_2mortal(newSViv(sv_len(*SP)));
1719 dSP; dMARK; dORIGMARK; dTARGET;
1730 if (PL_op->op_type == OP_SYSWRITE
1731 && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
1736 *MARK = SvTIED_obj((SV*)gv, mg);
1738 call_method("WRITE", G_SCALAR);
1749 #if Size_t_size > IVSIZE
1750 length = (Size_t)SvNVx(*++MARK);
1752 length = (Size_t)SvIVx(*++MARK);
1754 if ((SSize_t)length < 0)
1755 DIE(aTHX_ "Negative length");
1758 if (!io || !IoIFP(io)) {
1760 if (ckWARN(WARN_CLOSED))
1761 report_evil_fh(gv, io, PL_op->op_type);
1765 if (PerlIO_isutf8(IoIFP(io))) {
1766 buffer = SvPVutf8(bufsv, blen);
1770 sv_utf8_downgrade(bufsv, FALSE);
1771 buffer = SvPV(bufsv, blen);
1774 if (PL_op->op_type == OP_SYSWRITE) {
1776 if (DO_UTF8(bufsv)) {
1777 /* length and offset are in chars */
1778 blen = sv_len_utf8(bufsv);
1781 offset = SvIVx(*++MARK);
1784 DIE(aTHX_ "Offset outside string");
1786 } else if (offset >= blen && blen > 0)
1787 DIE(aTHX_ "Offset outside string");
1790 if (length > blen - offset)
1791 length = blen - offset;
1792 if (DO_UTF8(bufsv)) {
1793 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1794 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1797 buffer = buffer+offset;
1799 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1800 if (IoTYPE(io) == IoTYPE_SOCKET) {
1801 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1807 /* See the note at doio.c:do_print about filesize limits. --jhi */
1808 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1813 else if (SP > MARK) {
1816 sockbuf = SvPVx(*++MARK, mlen);
1817 /* length is really flags */
1818 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1819 length, (struct sockaddr *)sockbuf, mlen);
1822 /* length is really flags */
1823 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1826 DIE(aTHX_ PL_no_sock_func, "send");
1831 #if Size_t_size > IVSIZE
1845 return pp_sysread();
1855 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1857 gv = PL_last_in_gv = PL_argvgv;
1859 if (io && !IoIFP(io)) {
1860 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1862 IoFLAGS(io) &= ~IOf_START;
1863 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1864 sv_setpvn(GvSV(gv), "-", 1);
1865 SvSETMAGIC(GvSV(gv));
1867 else if (!nextargv(gv))
1872 gv = PL_last_in_gv; /* eof */
1875 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1877 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1879 XPUSHs(SvTIED_obj((SV*)gv, mg));
1882 call_method("EOF", G_SCALAR);
1888 PUSHs(boolSV(!gv || do_eof(gv)));
1901 gv = PL_last_in_gv = (GV*)POPs;
1903 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1905 XPUSHs(SvTIED_obj((SV*)gv, mg));
1908 call_method("TELL", G_SCALAR);
1914 #if LSEEKSIZE > IVSIZE
1915 PUSHn( do_tell(gv) );
1917 PUSHi( do_tell(gv) );
1924 return pp_sysseek();
1932 #if LSEEKSIZE > IVSIZE
1933 Off_t offset = (Off_t)SvNVx(POPs);
1935 Off_t offset = (Off_t)SvIVx(POPs);
1939 gv = PL_last_in_gv = (GV*)POPs;
1941 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1943 XPUSHs(SvTIED_obj((SV*)gv, mg));
1944 #if LSEEKSIZE > IVSIZE
1945 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1947 XPUSHs(sv_2mortal(newSViv(offset)));
1949 XPUSHs(sv_2mortal(newSViv(whence)));
1952 call_method("SEEK", G_SCALAR);
1958 if (PL_op->op_type == OP_SEEK)
1959 PUSHs(boolSV(do_seek(gv, offset, whence)));
1961 Off_t sought = do_sysseek(gv, offset, whence);
1963 PUSHs(&PL_sv_undef);
1966 #if LSEEKSIZE > IVSIZE
1971 : newSVpvn(zero_but_true, ZBTLEN);
1972 PUSHs(sv_2mortal(sv));
1981 /* There seems to be no consensus on the length type of truncate()
1982 * and ftruncate(), both off_t and size_t have supporters. In
1983 * general one would think that when using large files, off_t is
1984 * at least as wide as size_t, so using an off_t should be okay. */
1985 /* XXX Configure probe for the length type of *truncate() needed XXX */
1988 #if Size_t_size > IVSIZE
1993 /* Checking for length < 0 is problematic as the type might or
1994 * might not be signed: if it is not, clever compilers will moan. */
1995 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
1997 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2003 if (PL_op->op_flags & OPf_SPECIAL) {
2004 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2007 TAINT_PROPER("truncate");
2008 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2011 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2013 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2015 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2024 if (SvTYPE(sv) == SVt_PVGV) {
2025 tmpgv = (GV*)sv; /* *main::FRED for example */
2028 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2029 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2033 name = SvPV(sv, n_a);
2034 TAINT_PROPER("truncate");
2036 if (truncate(name, len) < 0)
2042 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2045 if (my_chsize(tmpfd, len) < 0)
2047 PerlLIO_close(tmpfd);
2056 SETERRNO(EBADF,RMS$_IFI);
2060 DIE(aTHX_ "truncate not implemented");
2073 unsigned int func = POPu;
2074 int optype = PL_op->op_type;
2078 IO *io = gv ? GvIOn(gv) : 0;
2080 if (!io || !argsv || !IoIFP(io)) {
2081 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2082 report_evil_fh(gv, io, PL_op->op_type);
2083 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2087 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2090 s = SvPV_force(argsv, len);
2091 need = IOCPARM_LEN(func);
2093 s = Sv_Grow(argsv, need + 1);
2094 SvCUR_set(argsv, need);
2097 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2100 retval = SvIV(argsv);
2101 s = INT2PTR(char*,retval); /* ouch */
2104 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2106 if (optype == OP_IOCTL)
2108 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2110 DIE(aTHX_ "ioctl is not implemented");
2114 #if defined(OS2) && defined(__EMX__)
2115 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2117 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2120 DIE(aTHX_ "fcntl is not implemented");
2124 if (s[SvCUR(argsv)] != 17)
2125 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2126 PL_op_name[optype]);
2127 s[SvCUR(argsv)] = 0; /* put our null back */
2128 SvSETMAGIC(argsv); /* Assume it has changed */
2137 PUSHp(zero_but_true, ZBTLEN);
2157 if (gv && (io = GvIO(gv)))
2164 (void)PerlIO_flush(fp);
2165 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2168 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2169 report_evil_fh(gv, io, PL_op->op_type);
2171 SETERRNO(EBADF,RMS$_IFI);
2176 DIE(aTHX_ PL_no_func, "flock()");
2188 int protocol = POPi;
2194 io = gv ? GvIOn(gv) : NULL;
2197 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2198 report_evil_fh(gv, io, PL_op->op_type);
2200 do_close(gv, FALSE);
2201 SETERRNO(EBADF,LIB$_INVARG);
2206 do_close(gv, FALSE);
2208 TAINT_PROPER("socket");
2209 fd = PerlSock_socket(domain, type, protocol);
2212 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2213 IoOFP(io) = PerlIO_fdopen(fd, "w");
2214 IoTYPE(io) = IoTYPE_SOCKET;
2215 if (!IoIFP(io) || !IoOFP(io)) {
2216 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2217 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2218 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2221 #if defined(HAS_FCNTL) && defined(F_SETFD)
2222 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2226 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2231 DIE(aTHX_ PL_no_sock_func, "socket");
2237 #ifdef HAS_SOCKETPAIR
2243 int protocol = POPi;
2250 io1 = gv1 ? GvIOn(gv1) : NULL;
2251 io2 = gv2 ? GvIOn(gv2) : NULL;
2252 if (!gv1 || !gv2 || !io1 || !io2) {
2253 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2255 report_evil_fh(gv1, io1, PL_op->op_type);
2257 report_evil_fh(gv1, io2, PL_op->op_type);
2260 do_close(gv1, FALSE);
2262 do_close(gv2, FALSE);
2267 do_close(gv1, FALSE);
2269 do_close(gv2, FALSE);
2271 TAINT_PROPER("socketpair");
2272 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2274 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2275 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2276 IoTYPE(io1) = IoTYPE_SOCKET;
2277 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2278 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2279 IoTYPE(io2) = IoTYPE_SOCKET;
2280 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2281 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2282 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2283 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2284 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2285 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2286 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2289 #if defined(HAS_FCNTL) && defined(F_SETFD)
2290 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2291 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2296 DIE(aTHX_ PL_no_sock_func, "socketpair");
2304 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2305 extern void GETPRIVMODE();
2306 extern void GETUSERMODE();
2311 register IO *io = GvIOn(gv);
2315 int mpeprivmode = 0;
2318 if (!io || !IoIFP(io))
2321 addr = SvPV(addrsv, len);
2322 TAINT_PROPER("bind");
2323 #ifdef MPE /* Deal with MPE bind() peculiarities */
2324 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2325 /* The address *MUST* stupidly be zero. */
2326 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2327 /* PRIV mode is required to bind() to ports < 1024. */
2328 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2329 ((struct sockaddr_in *)addr)->sin_port > 0) {
2330 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2335 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2336 (struct sockaddr *)addr, len) >= 0)
2339 #ifdef MPE /* Switch back to USER mode */
2350 if (ckWARN(WARN_CLOSED))
2351 report_evil_fh(gv, io, PL_op->op_type);
2352 SETERRNO(EBADF,SS$_IVCHAN);
2355 DIE(aTHX_ PL_no_sock_func, "bind");
2366 register IO *io = GvIOn(gv);
2369 if (!io || !IoIFP(io))
2372 addr = SvPV(addrsv, len);
2373 TAINT_PROPER("connect");
2374 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2380 if (ckWARN(WARN_CLOSED))
2381 report_evil_fh(gv, io, PL_op->op_type);
2382 SETERRNO(EBADF,SS$_IVCHAN);
2385 DIE(aTHX_ PL_no_sock_func, "connect");
2395 register IO *io = gv ? GvIOn(gv) : NULL;
2397 if (!gv || !io || !IoIFP(io))
2400 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2406 if (ckWARN(WARN_CLOSED))
2407 report_evil_fh(gv, io, PL_op->op_type);
2408 SETERRNO(EBADF,SS$_IVCHAN);
2411 DIE(aTHX_ PL_no_sock_func, "listen");
2423 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2424 Sock_size_t len = sizeof saddr;
2436 if (!gstio || !IoIFP(gstio))
2441 do_close(ngv, FALSE);
2443 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2446 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2447 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2448 IoTYPE(nstio) = IoTYPE_SOCKET;
2449 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2450 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2451 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2452 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2455 #if defined(HAS_FCNTL) && defined(F_SETFD)
2456 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2460 len = sizeof saddr; /* EPOC somehow truncates info */
2461 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2464 PUSHp((char *)&saddr, len);
2468 if (ckWARN(WARN_CLOSED))
2469 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2470 SETERRNO(EBADF,SS$_IVCHAN);
2476 DIE(aTHX_ PL_no_sock_func, "accept");
2486 register IO *io = GvIOn(gv);
2488 if (!io || !IoIFP(io))
2491 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2495 if (ckWARN(WARN_CLOSED))
2496 report_evil_fh(gv, io, PL_op->op_type);
2497 SETERRNO(EBADF,SS$_IVCHAN);
2500 DIE(aTHX_ PL_no_sock_func, "shutdown");
2507 return pp_ssockopt();
2509 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2517 int optype = PL_op->op_type;
2520 unsigned int optname;
2526 if (optype == OP_GSOCKOPT)
2527 sv = sv_2mortal(NEWSV(22, 257));
2530 optname = (unsigned int) POPi;
2531 lvl = (unsigned int) POPi;
2535 if (!io || !IoIFP(io))
2538 fd = PerlIO_fileno(IoIFP(io));
2542 (void)SvPOK_only(sv);
2546 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2561 aint = (int)SvIV(sv);
2565 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2574 if (ckWARN(WARN_CLOSED))
2575 report_evil_fh(gv, io, optype);
2576 SETERRNO(EBADF,SS$_IVCHAN);
2581 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2588 return pp_getpeername();
2590 DIE(aTHX_ PL_no_sock_func, "getsockname");
2598 int optype = PL_op->op_type;
2602 register IO *io = GvIOn(gv);
2605 if (!io || !IoIFP(io))
2608 sv = sv_2mortal(NEWSV(22, 257));
2609 (void)SvPOK_only(sv);
2613 fd = PerlIO_fileno(IoIFP(io));
2615 case OP_GETSOCKNAME:
2616 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2619 case OP_GETPEERNAME:
2620 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2622 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2624 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";
2625 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2626 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2627 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2628 sizeof(u_short) + sizeof(struct in_addr))) {
2635 #ifdef BOGUS_GETNAME_RETURN
2636 /* Interactive Unix, getpeername() and getsockname()
2637 does not return valid namelen */
2638 if (len == BOGUS_GETNAME_RETURN)
2639 len = sizeof(struct sockaddr);
2647 if (ckWARN(WARN_CLOSED))
2648 report_evil_fh(gv, io, optype);
2649 SETERRNO(EBADF,SS$_IVCHAN);
2654 DIE(aTHX_ PL_no_sock_func, "getpeername");
2673 if (PL_op->op_flags & OPf_REF) {
2675 if (PL_op->op_type == OP_LSTAT) {
2676 if (PL_laststype != OP_LSTAT)
2677 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2678 if (ckWARN(WARN_IO) && gv != PL_defgv)
2679 Perl_warner(aTHX_ WARN_IO,
2680 "lstat() on filehandle %s", GvENAME(gv));
2681 /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
2685 if (gv != PL_defgv) {
2686 PL_laststype = OP_STAT;
2688 sv_setpv(PL_statname, "");
2689 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2690 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2692 if (PL_laststatval < 0) {
2693 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2694 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2700 if (SvTYPE(sv) == SVt_PVGV) {
2704 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2708 sv_setpv(PL_statname, SvPV(sv,n_a));
2711 PL_laststype = PL_op->op_type;
2712 if (PL_op->op_type == OP_LSTAT)
2713 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2716 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2717 if (PL_laststatval < 0) {
2718 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2719 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
2725 if (gimme != G_ARRAY) {
2726 if (gimme != G_VOID)
2727 XPUSHs(boolSV(max));
2733 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2734 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2735 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2736 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2737 #if Uid_t_size > IVSIZE
2738 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2740 # if Uid_t_sign <= 0
2741 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2743 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2746 #if Gid_t_size > IVSIZE
2747 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2749 # if Gid_t_sign <= 0
2750 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2752 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2755 #ifdef USE_STAT_RDEV
2756 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2758 PUSHs(sv_2mortal(newSVpvn("", 0)));
2760 #if Off_t_size > IVSIZE
2761 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2763 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2766 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2767 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2768 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2770 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2771 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2772 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2774 #ifdef USE_STAT_BLOCKS
2775 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2776 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2778 PUSHs(sv_2mortal(newSVpvn("", 0)));
2779 PUSHs(sv_2mortal(newSVpvn("", 0)));
2789 #if defined(HAS_ACCESS) && defined(R_OK)
2791 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2792 result = access(TOPpx, R_OK);
2807 if (cando(S_IRUSR, 0, &PL_statcache))
2816 #if defined(HAS_ACCESS) && defined(W_OK)
2818 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2819 result = access(TOPpx, W_OK);
2834 if (cando(S_IWUSR, 0, &PL_statcache))
2843 #if defined(HAS_ACCESS) && defined(X_OK)
2845 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2846 result = access(TOPpx, X_OK);
2861 if (cando(S_IXUSR, 0, &PL_statcache))
2870 #ifdef PERL_EFF_ACCESS_R_OK
2872 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2873 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2888 if (cando(S_IRUSR, 1, &PL_statcache))
2897 #ifdef PERL_EFF_ACCESS_W_OK
2899 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2900 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2915 if (cando(S_IWUSR, 1, &PL_statcache))
2924 #ifdef PERL_EFF_ACCESS_X_OK
2926 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2927 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2942 if (cando(S_IXUSR, 1, &PL_statcache))
2949 I32 result = my_stat();
2958 return pp_ftrowned();
2963 I32 result = my_stat();
2967 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2975 I32 result = my_stat();
2979 if (PL_statcache.st_size == 0)
2986 I32 result = my_stat();
2990 #if Off_t_size > IVSIZE
2991 PUSHn(PL_statcache.st_size);
2993 PUSHi(PL_statcache.st_size);
3000 I32 result = my_stat();
3004 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3010 I32 result = my_stat();
3014 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3020 I32 result = my_stat();
3024 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3030 I32 result = my_stat();
3034 if (S_ISSOCK(PL_statcache.st_mode))
3041 I32 result = my_stat();
3045 if (S_ISCHR(PL_statcache.st_mode))
3052 I32 result = my_stat();
3056 if (S_ISBLK(PL_statcache.st_mode))
3063 I32 result = my_stat();
3067 if (S_ISREG(PL_statcache.st_mode))
3074 I32 result = my_stat();
3078 if (S_ISDIR(PL_statcache.st_mode))
3085 I32 result = my_stat();
3089 if (S_ISFIFO(PL_statcache.st_mode))
3096 I32 result = my_lstat();
3100 if (S_ISLNK(PL_statcache.st_mode))
3109 I32 result = my_stat();
3113 if (PL_statcache.st_mode & S_ISUID)
3123 I32 result = my_stat();
3127 if (PL_statcache.st_mode & S_ISGID)
3137 I32 result = my_stat();
3141 if (PL_statcache.st_mode & S_ISVTX)
3152 char *tmps = Nullch;
3155 if (PL_op->op_flags & OPf_REF)
3157 else if (isGV(TOPs))
3159 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3160 gv = (GV*)SvRV(POPs);
3162 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3164 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3165 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3166 else if (tmps && isDIGIT(*tmps))
3170 if (PerlLIO_isatty(fd))
3175 #if defined(atarist) /* this will work with atariST. Configure will
3176 make guesses for other systems. */
3177 # define FILE_base(f) ((f)->_base)
3178 # define FILE_ptr(f) ((f)->_ptr)
3179 # define FILE_cnt(f) ((f)->_cnt)
3180 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3190 register STDCHAR *s;
3197 if (PL_op->op_flags & OPf_REF)
3199 else if (isGV(TOPs))
3201 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3202 gv = (GV*)SvRV(POPs);
3208 if (gv == PL_defgv) {
3210 io = GvIO(PL_statgv);
3213 goto really_filename;
3218 PL_laststatval = -1;
3219 sv_setpv(PL_statname, "");
3220 io = GvIO(PL_statgv);
3222 if (io && IoIFP(io)) {
3223 if (! PerlIO_has_base(IoIFP(io)))
3224 DIE(aTHX_ "-T and -B not implemented on filehandles");
3225 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3226 if (PL_laststatval < 0)
3228 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3229 if (PL_op->op_type == OP_FTTEXT)
3234 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3235 i = PerlIO_getc(IoIFP(io));
3237 (void)PerlIO_ungetc(IoIFP(io),i);
3239 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3241 len = PerlIO_get_bufsiz(IoIFP(io));
3242 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3243 /* sfio can have large buffers - limit to 512 */
3248 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3250 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3252 SETERRNO(EBADF,RMS$_IFI);
3260 PL_laststatval = -1;
3261 sv_setpv(PL_statname, SvPV(sv, n_a));
3262 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3263 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3264 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
3267 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3268 if (PL_laststatval < 0) {
3269 (void)PerlIO_close(fp);
3272 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3273 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3274 (void)PerlIO_close(fp);
3276 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3277 RETPUSHNO; /* special case NFS directories */
3278 RETPUSHYES; /* null file is anything */
3283 /* now scan s to look for textiness */
3284 /* XXX ASCII dependent code */
3286 #if defined(DOSISH) || defined(USEMYBINMODE)
3287 /* ignore trailing ^Z on short files */
3288 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3292 for (i = 0; i < len; i++, s++) {
3293 if (!*s) { /* null never allowed in text */
3298 else if (!(isPRINT(*s) || isSPACE(*s)))
3301 else if (*s & 128) {
3303 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3306 /* utf8 characters don't count as odd */
3307 if (UTF8_IS_START(*s)) {
3308 int ulen = UTF8SKIP(s);
3309 if (ulen < len - i) {
3311 for (j = 1; j < ulen; j++) {
3312 if (!UTF8_IS_CONTINUATION(s[j]))
3315 --ulen; /* loop does extra increment */
3325 *s != '\n' && *s != '\r' && *s != '\b' &&
3326 *s != '\t' && *s != '\f' && *s != 27)
3331 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3355 if (!tmps || !*tmps) {
3356 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
3358 tmps = SvPV(*svp, n_a);
3360 if (!tmps || !*tmps) {
3361 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
3363 tmps = SvPV(*svp, n_a);
3366 if (!tmps || !*tmps) {
3367 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
3369 tmps = SvPV(*svp, n_a);
3372 TAINT_PROPER("chdir");
3373 PUSHi( PerlDir_chdir(tmps) >= 0 );
3375 /* Clear the DEFAULT element of ENV so we'll get the new value
3377 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3385 dSP; dMARK; dTARGET;
3386 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3392 DIE(aTHX_ PL_no_func, "chown");
3402 TAINT_PROPER("chroot");
3403 PUSHi( chroot(tmps) >= 0 );
3406 DIE(aTHX_ PL_no_func, "chroot");
3412 dSP; dMARK; dTARGET;
3414 value = (I32)apply(PL_op->op_type, MARK, SP);
3422 dSP; dMARK; dTARGET;
3424 value = (I32)apply(PL_op->op_type, MARK, SP);
3432 dSP; dMARK; dTARGET;
3434 value = (I32)apply(PL_op->op_type, MARK, SP);
3446 char *tmps2 = POPpx;
3447 char *tmps = SvPV(TOPs, n_a);
3448 TAINT_PROPER("rename");
3450 anum = PerlLIO_rename(tmps, tmps2);
3452 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3453 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3456 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3457 (void)UNLINK(tmps2);
3458 if (!(anum = link(tmps, tmps2)))
3459 anum = UNLINK(tmps);
3473 char *tmps2 = POPpx;
3474 char *tmps = SvPV(TOPs, n_a);
3475 TAINT_PROPER("link");
3476 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3479 DIE(aTHX_ PL_no_func, "link");
3488 char *tmps2 = POPpx;
3489 char *tmps = SvPV(TOPs, n_a);
3490 TAINT_PROPER("symlink");
3491 SETi( symlink(tmps, tmps2) >= 0 );
3494 DIE(aTHX_ PL_no_func, "symlink");
3504 char buf[MAXPATHLEN];
3508 #ifndef INCOMPLETE_TAINTS
3512 len = readlink(tmps, buf, sizeof(buf) - 1);
3520 RETSETUNDEF; /* just pretend it's a normal file */
3524 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3526 S_dooneliner(pTHX_ char *cmd, char *filename)
3528 char *save_filename = filename;
3534 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3535 strcpy(cmdline, cmd);
3536 strcat(cmdline, " ");
3537 for (s = cmdline + strlen(cmdline); *filename; ) {
3542 myfp = PerlProc_popen(cmdline, "r");
3546 SV *tmpsv = sv_newmortal();
3547 /* Need to save/restore 'PL_rs' ?? */
3548 s = sv_gets(tmpsv, myfp, 0);
3549 (void)PerlProc_pclose(myfp);
3553 #ifdef HAS_SYS_ERRLIST
3558 /* you don't see this */
3560 #ifdef HAS_SYS_ERRLIST
3568 if (instr(s, errmsg)) {
3575 #define EACCES EPERM
3577 if (instr(s, "cannot make"))
3578 SETERRNO(EEXIST,RMS$_FEX);
3579 else if (instr(s, "existing file"))
3580 SETERRNO(EEXIST,RMS$_FEX);
3581 else if (instr(s, "ile exists"))
3582 SETERRNO(EEXIST,RMS$_FEX);
3583 else if (instr(s, "non-exist"))
3584 SETERRNO(ENOENT,RMS$_FNF);
3585 else if (instr(s, "does not exist"))
3586 SETERRNO(ENOENT,RMS$_FNF);
3587 else if (instr(s, "not empty"))
3588 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3589 else if (instr(s, "cannot access"))
3590 SETERRNO(EACCES,RMS$_PRV);
3592 SETERRNO(EPERM,RMS$_PRV);
3595 else { /* some mkdirs return no failure indication */
3596 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3597 if (PL_op->op_type == OP_RMDIR)
3602 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3627 tmps = SvPV(TOPs, len);
3628 /* Different operating and file systems take differently to
3629 * trailing slashes. According to POSIX 1003.1 1996 Edition
3630 * any number of trailing slashes should be allowed.
3631 * Thusly we snip them away so that even non-conforming
3632 * systems are happy. */
3633 /* We should probably do this "filtering" for all
3634 * the functions that expect (potentially) directory names:
3635 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3636 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3637 if (len > 1 && tmps[len-1] == '/') {
3638 while (tmps[len] == '/' && len > 1)
3640 tmps = savepvn(tmps, len);
3644 TAINT_PROPER("mkdir");
3646 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3648 SETi( dooneliner("mkdir", tmps) );
3649 oldumask = PerlLIO_umask(0);
3650 PerlLIO_umask(oldumask);
3651 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3665 TAINT_PROPER("rmdir");
3667 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3669 XPUSHi( dooneliner("rmdir", tmps) );
3674 /* Directory calls. */
3678 #if defined(Direntry_t) && defined(HAS_READDIR)
3681 char *dirname = POPpx;
3683 register IO *io = GvIOn(gv);
3689 PerlDir_close(IoDIRP(io));
3690 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3696 SETERRNO(EBADF,RMS$_DIR);
3699 DIE(aTHX_ PL_no_dir_func, "opendir");
3705 #if defined(Direntry_t) && defined(HAS_READDIR)
3707 #if !defined(I_DIRENT) && !defined(VMS)
3708 Direntry_t *readdir (DIR *);
3710 register Direntry_t *dp;
3712 register IO *io = GvIOn(gv);
3715 if (!io || !IoDIRP(io))
3718 if (GIMME == G_ARRAY) {
3720 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3722 sv = newSVpvn(dp->d_name, dp->d_namlen);
3724 sv = newSVpv(dp->d_name, 0);
3726 #ifndef INCOMPLETE_TAINTS
3727 if (!(IoFLAGS(io) & IOf_UNTAINT))
3730 XPUSHs(sv_2mortal(sv));
3734 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3737 sv = newSVpvn(dp->d_name, dp->d_namlen);
3739 sv = newSVpv(dp->d_name, 0);
3741 #ifndef INCOMPLETE_TAINTS
3742 if (!(IoFLAGS(io) & IOf_UNTAINT))
3745 XPUSHs(sv_2mortal(sv));
3751 SETERRNO(EBADF,RMS$_ISI);
3752 if (GIMME == G_ARRAY)
3757 DIE(aTHX_ PL_no_dir_func, "readdir");
3763 #if defined(HAS_TELLDIR) || defined(telldir)
3765 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3766 /* XXX netbsd still seemed to.
3767 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3768 --JHI 1999-Feb-02 */
3769 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3770 long telldir (DIR *);
3773 register IO *io = GvIOn(gv);
3775 if (!io || !IoDIRP(io))
3778 PUSHi( PerlDir_tell(IoDIRP(io)) );
3782 SETERRNO(EBADF,RMS$_ISI);
3785 DIE(aTHX_ PL_no_dir_func, "telldir");
3791 #if defined(HAS_SEEKDIR) || defined(seekdir)
3795 register IO *io = GvIOn(gv);
3797 if (!io || !IoDIRP(io))
3800 (void)PerlDir_seek(IoDIRP(io), along);
3805 SETERRNO(EBADF,RMS$_ISI);
3808 DIE(aTHX_ PL_no_dir_func, "seekdir");
3814 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3817 register IO *io = GvIOn(gv);
3819 if (!io || !IoDIRP(io))
3822 (void)PerlDir_rewind(IoDIRP(io));
3826 SETERRNO(EBADF,RMS$_ISI);
3829 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3835 #if defined(Direntry_t) && defined(HAS_READDIR)
3838 register IO *io = GvIOn(gv);
3840 if (!io || !IoDIRP(io))
3843 #ifdef VOID_CLOSEDIR
3844 PerlDir_close(IoDIRP(io));
3846 if (PerlDir_close(IoDIRP(io)) < 0) {
3847 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3856 SETERRNO(EBADF,RMS$_IFI);
3859 DIE(aTHX_ PL_no_dir_func, "closedir");
3863 /* Process control. */
3873 PERL_FLUSHALL_FOR_CHILD;
3874 childpid = PerlProc_fork();
3879 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV)))
3880 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3881 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3886 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3891 PERL_FLUSHALL_FOR_CHILD;
3892 childpid = PerlProc_fork();
3898 DIE(aTHX_ PL_no_func, "fork");
3905 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3910 #ifdef PERL_OLD_SIGNALS
3911 childpid = wait4pid(-1, &argflags, 0);
3913 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3917 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3918 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3919 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3921 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3926 DIE(aTHX_ PL_no_func, "wait");
3932 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3940 #ifdef PERL_OLD_SIGNALS
3941 childpid = wait4pid(childpid, &argflags, optype);
3943 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
3947 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3948 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3949 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3951 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3956 DIE(aTHX_ PL_no_func, "waitpid");
3962 dSP; dMARK; dORIGMARK; dTARGET;
3969 if (SP - MARK == 1) {
3971 (void)SvPV_nolen(TOPs); /* stringify for taint check */
3973 TAINT_PROPER("system");
3976 PERL_FLUSHALL_FOR_CHILD;
3977 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
3981 Sigsave_t ihand,qhand; /* place to save signals during system() */
3983 if (PerlProc_pipe(pp) >= 0)
3985 while ((childpid = PerlProc_fork()) == -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 fork */
4019 while (n < sizeof(int)) {
4020 n1 = PerlLIO_read(pp[0],
4021 (void*)(((char*)&errkid)+n),
4027 PerlLIO_close(pp[0]);
4028 if (n) { /* Error */
4029 if (n != sizeof(int))
4030 DIE(aTHX_ "panic: kid popen errno read");
4031 errno = errkid; /* Propagate errno from kid */
4032 STATUS_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);
4045 if (PL_op->op_flags & OPf_STACKED) {
4046 SV *really = *++MARK;
4047 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4049 else if (SP - MARK != 1)
4050 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4052 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4055 #else /* ! FORK or VMS or OS/2 */
4058 if (PL_op->op_flags & OPf_STACKED) {
4059 SV *really = *++MARK;
4060 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4062 else if (SP - MARK != 1)
4063 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4065 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4067 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4069 STATUS_NATIVE_SET(value);
4072 PUSHi(result ? value : STATUS_CURRENT);
4073 #endif /* !FORK or VMS */
4079 dSP; dMARK; dORIGMARK; dTARGET;
4083 PERL_FLUSHALL_FOR_CHILD;
4084 if (PL_op->op_flags & OPf_STACKED) {
4085 SV *really = *++MARK;
4086 value = (I32)do_aexec(really, MARK, SP);
4088 else if (SP - MARK != 1)
4090 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4094 (void ) do_aspawn(Nullsv, MARK, SP);
4098 value = (I32)do_aexec(Nullsv, MARK, SP);
4103 (void)SvPV_nolen(*SP); /* stringify for taint check */
4105 TAINT_PROPER("exec");
4108 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4111 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4114 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4127 dSP; dMARK; dTARGET;
4129 value = (I32)apply(PL_op->op_type, MARK, SP);
4134 DIE(aTHX_ PL_no_func, "kill");
4142 XPUSHi( getppid() );
4145 DIE(aTHX_ PL_no_func, "getppid");
4161 pgrp = (I32)BSD_GETPGRP(pid);
4163 if (pid != 0 && pid != PerlProc_getpid())
4164 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4170 DIE(aTHX_ PL_no_func, "getpgrp()");
4189 TAINT_PROPER("setpgrp");
4191 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4193 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4194 || (pid != 0 && pid != PerlProc_getpid()))
4196 DIE(aTHX_ "setpgrp can't take arguments");
4198 SETi( setpgrp() >= 0 );
4199 #endif /* USE_BSDPGRP */
4202 DIE(aTHX_ PL_no_func, "setpgrp()");
4208 #ifdef HAS_GETPRIORITY
4212 SETi( getpriority(which, who) );
4215 DIE(aTHX_ PL_no_func, "getpriority()");
4221 #ifdef HAS_SETPRIORITY
4226 TAINT_PROPER("setpriority");
4227 SETi( setpriority(which, who, niceval) >= 0 );
4230 DIE(aTHX_ PL_no_func, "setpriority()");
4240 XPUSHn( time(Null(Time_t*)) );
4242 XPUSHi( time(Null(Time_t*)) );
4247 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4248 to HZ. Probably. For now, assume that if the system
4249 defines HZ, it does so correctly. (Will this break
4251 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4252 it's supported. --AD 9/96.
4269 (void)PerlProc_times(&PL_timesbuf);
4271 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4272 /* struct tms, though same data */
4276 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4277 if (GIMME == G_ARRAY) {
4278 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4279 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4280 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4284 DIE(aTHX_ "times not implemented");
4285 #endif /* HAS_TIMES */
4298 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4299 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4300 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4306 when = (Time_t)SvNVx(POPs);
4308 when = (Time_t)SvIVx(POPs);
4311 if (PL_op->op_type == OP_LOCALTIME)
4312 tmbuf = localtime(&when);
4314 tmbuf = gmtime(&when);
4316 if (GIMME != G_ARRAY) {
4322 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4323 dayname[tmbuf->tm_wday],
4324 monname[tmbuf->tm_mon],
4329 tmbuf->tm_year + 1900);
4330 PUSHs(sv_2mortal(tsv));
4335 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4336 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4337 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4338 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4339 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4340 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4341 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4342 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4343 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4354 anum = alarm((unsigned int)anum);
4361 DIE(aTHX_ PL_no_func, "alarm");
4372 (void)time(&lasttime);
4377 PerlProc_sleep((unsigned int)duration);
4380 XPUSHi(when - lasttime);
4384 /* Shared memory. */
4398 return pp_shmwrite();
4403 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4404 dSP; dMARK; dTARGET;
4405 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4414 /* Message passing. */
4428 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4429 dSP; dMARK; dTARGET;
4430 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4441 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4442 dSP; dMARK; dTARGET;
4443 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4456 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4457 dSP; dMARK; dTARGET;
4458 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4465 DIE(aTHX_ "System V IPC is not implemented on this machine");
4471 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4472 dSP; dMARK; dTARGET;
4473 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4481 PUSHp(zero_but_true, ZBTLEN);
4491 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4492 dSP; dMARK; dTARGET;
4493 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4502 /* Get system info. */
4506 #ifdef HAS_GETHOSTBYNAME
4507 return pp_ghostent();
4509 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4515 #ifdef HAS_GETHOSTBYADDR
4516 return pp_ghostent();
4518 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4524 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4526 I32 which = PL_op->op_type;
4527 register char **elem;
4529 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4530 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4531 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
4532 struct hostent *PerlSock_gethostent(void);
4534 struct hostent *hent;
4539 if (which == OP_GHBYNAME)
4540 #ifdef HAS_GETHOSTBYNAME
4541 hent = PerlSock_gethostbyname(POPpbytex);
4543 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4545 else if (which == OP_GHBYADDR) {
4546 #ifdef HAS_GETHOSTBYADDR
4547 int addrtype = POPi;
4550 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4552 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4554 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4558 #ifdef HAS_GETHOSTENT
4559 hent = PerlSock_gethostent();
4561 DIE(aTHX_ PL_no_sock_func, "gethostent");
4564 #ifdef HOST_NOT_FOUND
4566 STATUS_NATIVE_SET(h_errno);
4569 if (GIMME != G_ARRAY) {
4570 PUSHs(sv = sv_newmortal());
4572 if (which == OP_GHBYNAME) {
4574 sv_setpvn(sv, hent->h_addr, hent->h_length);
4577 sv_setpv(sv, (char*)hent->h_name);
4583 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4584 sv_setpv(sv, (char*)hent->h_name);
4585 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4586 for (elem = hent->h_aliases; elem && *elem; elem++) {
4587 sv_catpv(sv, *elem);
4589 sv_catpvn(sv, " ", 1);
4591 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4592 sv_setiv(sv, (IV)hent->h_addrtype);
4593 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4594 len = hent->h_length;
4595 sv_setiv(sv, (IV)len);
4597 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4598 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4599 sv_setpvn(sv, *elem, len);
4602 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4604 sv_setpvn(sv, hent->h_addr, len);
4609 DIE(aTHX_ PL_no_sock_func, "gethostent");
4615 #ifdef HAS_GETNETBYNAME
4616 return pp_gnetent();
4618 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4624 #ifdef HAS_GETNETBYADDR
4625 return pp_gnetent();
4627 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4633 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4635 I32 which = PL_op->op_type;
4636 register char **elem;
4638 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4639 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4640 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4641 struct netent *PerlSock_getnetent(void);
4643 struct netent *nent;
4646 if (which == OP_GNBYNAME)
4647 #ifdef HAS_GETNETBYNAME
4648 nent = PerlSock_getnetbyname(POPpbytex);
4650 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4652 else if (which == OP_GNBYADDR) {
4653 #ifdef HAS_GETNETBYADDR
4654 int addrtype = POPi;
4655 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4656 nent = PerlSock_getnetbyaddr(addr, addrtype);
4658 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4662 #ifdef HAS_GETNETENT
4663 nent = PerlSock_getnetent();
4665 DIE(aTHX_ PL_no_sock_func, "getnetent");
4669 if (GIMME != G_ARRAY) {
4670 PUSHs(sv = sv_newmortal());
4672 if (which == OP_GNBYNAME)
4673 sv_setiv(sv, (IV)nent->n_net);
4675 sv_setpv(sv, nent->n_name);
4681 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4682 sv_setpv(sv, nent->n_name);
4683 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4684 for (elem = nent->n_aliases; elem && *elem; elem++) {
4685 sv_catpv(sv, *elem);
4687 sv_catpvn(sv, " ", 1);
4689 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4690 sv_setiv(sv, (IV)nent->n_addrtype);
4691 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4692 sv_setiv(sv, (IV)nent->n_net);
4697 DIE(aTHX_ PL_no_sock_func, "getnetent");
4703 #ifdef HAS_GETPROTOBYNAME
4704 return pp_gprotoent();
4706 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4712 #ifdef HAS_GETPROTOBYNUMBER
4713 return pp_gprotoent();
4715 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4721 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4723 I32 which = PL_op->op_type;
4724 register char **elem;
4726 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4727 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4728 struct protoent *PerlSock_getprotobynumber(int);
4729 struct protoent *PerlSock_getprotoent(void);
4731 struct protoent *pent;
4734 if (which == OP_GPBYNAME)
4735 #ifdef HAS_GETPROTOBYNAME
4736 pent = PerlSock_getprotobyname(POPpbytex);
4738 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4740 else if (which == OP_GPBYNUMBER)
4741 #ifdef HAS_GETPROTOBYNUMBER
4742 pent = PerlSock_getprotobynumber(POPi);
4744 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4747 #ifdef HAS_GETPROTOENT
4748 pent = PerlSock_getprotoent();
4750 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4754 if (GIMME != G_ARRAY) {
4755 PUSHs(sv = sv_newmortal());
4757 if (which == OP_GPBYNAME)
4758 sv_setiv(sv, (IV)pent->p_proto);
4760 sv_setpv(sv, pent->p_name);
4766 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4767 sv_setpv(sv, pent->p_name);
4768 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4769 for (elem = pent->p_aliases; elem && *elem; elem++) {
4770 sv_catpv(sv, *elem);
4772 sv_catpvn(sv, " ", 1);
4774 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4775 sv_setiv(sv, (IV)pent->p_proto);
4780 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4786 #ifdef HAS_GETSERVBYNAME
4787 return pp_gservent();
4789 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4795 #ifdef HAS_GETSERVBYPORT
4796 return pp_gservent();
4798 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4804 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4806 I32 which = PL_op->op_type;
4807 register char **elem;
4809 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4810 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4811 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4812 struct servent *PerlSock_getservent(void);
4814 struct servent *sent;
4817 if (which == OP_GSBYNAME) {
4818 #ifdef HAS_GETSERVBYNAME
4819 char *proto = POPpbytex;
4820 char *name = POPpbytex;
4822 if (proto && !*proto)
4825 sent = PerlSock_getservbyname(name, proto);
4827 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4830 else if (which == OP_GSBYPORT) {
4831 #ifdef HAS_GETSERVBYPORT
4832 char *proto = POPpbytex;
4833 unsigned short port = POPu;
4836 port = PerlSock_htons(port);
4838 sent = PerlSock_getservbyport(port, proto);
4840 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4844 #ifdef HAS_GETSERVENT
4845 sent = PerlSock_getservent();
4847 DIE(aTHX_ PL_no_sock_func, "getservent");
4851 if (GIMME != G_ARRAY) {
4852 PUSHs(sv = sv_newmortal());
4854 if (which == OP_GSBYNAME) {
4856 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4858 sv_setiv(sv, (IV)(sent->s_port));
4862 sv_setpv(sv, sent->s_name);
4868 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4869 sv_setpv(sv, sent->s_name);
4870 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4871 for (elem = sent->s_aliases; elem && *elem; elem++) {
4872 sv_catpv(sv, *elem);
4874 sv_catpvn(sv, " ", 1);
4876 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4878 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4880 sv_setiv(sv, (IV)(sent->s_port));
4882 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4883 sv_setpv(sv, sent->s_proto);
4888 DIE(aTHX_ PL_no_sock_func, "getservent");
4894 #ifdef HAS_SETHOSTENT
4896 PerlSock_sethostent(TOPi);
4899 DIE(aTHX_ PL_no_sock_func, "sethostent");
4905 #ifdef HAS_SETNETENT
4907 PerlSock_setnetent(TOPi);
4910 DIE(aTHX_ PL_no_sock_func, "setnetent");
4916 #ifdef HAS_SETPROTOENT
4918 PerlSock_setprotoent(TOPi);
4921 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4927 #ifdef HAS_SETSERVENT
4929 PerlSock_setservent(TOPi);
4932 DIE(aTHX_ PL_no_sock_func, "setservent");
4938 #ifdef HAS_ENDHOSTENT
4940 PerlSock_endhostent();
4944 DIE(aTHX_ PL_no_sock_func, "endhostent");
4950 #ifdef HAS_ENDNETENT
4952 PerlSock_endnetent();
4956 DIE(aTHX_ PL_no_sock_func, "endnetent");
4962 #ifdef HAS_ENDPROTOENT
4964 PerlSock_endprotoent();
4968 DIE(aTHX_ PL_no_sock_func, "endprotoent");
4974 #ifdef HAS_ENDSERVENT
4976 PerlSock_endservent();
4980 DIE(aTHX_ PL_no_sock_func, "endservent");
4989 DIE(aTHX_ PL_no_func, "getpwnam");
4998 DIE(aTHX_ PL_no_func, "getpwuid");
5006 I32 which = PL_op->op_type;
5009 struct passwd *pwent = NULL;
5011 * We currently support only the SysV getsp* shadow password interface.
5012 * The interface is declared in <shadow.h> and often one needs to link
5013 * with -lsecurity or some such.
5014 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5017 * AIX getpwnam() is clever enough to return the encrypted password
5018 * only if the caller (euid?) is root.
5020 * There are at least two other shadow password APIs. Many platforms
5021 * seem to contain more than one interface for accessing the shadow
5022 * password databases, possibly for compatibility reasons.
5023 * The getsp*() is by far he simplest one, the other two interfaces
5024 * are much more complicated, but also very similar to each other.
5029 * struct pr_passwd *getprpw*();
5030 * The password is in
5031 * char getprpw*(...).ufld.fd_encrypt[]
5032 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5037 * struct es_passwd *getespw*();
5038 * The password is in
5039 * char *(getespw*(...).ufld.fd_encrypt)
5040 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5042 * Mention I_PROT here so that Configure probes for it.
5044 * In HP-UX for getprpw*() the manual page claims that one should include
5045 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5046 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5047 * and pp_sys.c already includes <shadow.h> if there is such.
5049 * Note that <sys/security.h> is already probed for, but currently
5050 * it is only included in special cases.
5052 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5053 * be preferred interface, even though also the getprpw*() interface
5054 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5055 * One also needs to call set_auth_parameters() in main() before
5056 * doing anything else, whether one is using getespw*() or getprpw*().
5058 * Note that accessing the shadow databases can be magnitudes
5059 * slower than accessing the standard databases.
5066 pwent = getpwnam(POPpbytex);
5069 pwent = getpwuid((Uid_t)POPi);
5072 # ifdef HAS_GETPWENT
5075 DIE(aTHX_ PL_no_func, "getpwent");
5081 if (GIMME != G_ARRAY) {
5082 PUSHs(sv = sv_newmortal());
5084 if (which == OP_GPWNAM)
5085 # if Uid_t_sign <= 0
5086 sv_setiv(sv, (IV)pwent->pw_uid);
5088 sv_setuv(sv, (UV)pwent->pw_uid);
5091 sv_setpv(sv, pwent->pw_name);
5097 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5098 sv_setpv(sv, pwent->pw_name);
5100 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5102 /* If we have getspnam(), we try to dig up the shadow
5103 * password. If we are underprivileged, the shadow
5104 * interface will set the errno to EACCES or similar,
5105 * and return a null pointer. If this happens, we will
5106 * use the dummy password (usually "*" or "x") from the
5107 * standard password database.
5109 * In theory we could skip the shadow call completely
5110 * if euid != 0 but in practice we cannot know which
5111 * security measures are guarding the shadow databases
5112 * on a random platform.
5114 * Resist the urge to use additional shadow interfaces.
5115 * Divert the urge to writing an extension instead.
5118 # ifdef HAS_GETSPNAM
5120 struct spwd *spwent;
5121 int saverrno; /* Save and restore errno so that
5122 * underprivileged attempts seem
5123 * to have never made the unsccessful
5124 * attempt to retrieve the shadow password. */
5127 spwent = getspnam(pwent->pw_name);
5129 if (spwent && spwent->sp_pwdp)
5130 sv_setpv(sv, spwent->sp_pwdp);
5134 if (!SvPOK(sv)) /* Use the standard password, then. */
5135 sv_setpv(sv, pwent->pw_passwd);
5138 # ifndef INCOMPLETE_TAINTS
5139 /* passwd is tainted because user himself can diddle with it.
5140 * admittedly not much and in a very limited way, but nevertheless. */
5144 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5145 # if Uid_t_sign <= 0
5146 sv_setiv(sv, (IV)pwent->pw_uid);
5148 sv_setuv(sv, (UV)pwent->pw_uid);
5151 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5152 # if Uid_t_sign <= 0
5153 sv_setiv(sv, (IV)pwent->pw_gid);
5155 sv_setuv(sv, (UV)pwent->pw_gid);
5157 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5158 * because of the poor interface of the Perl getpw*(),
5159 * not because there's some standard/convention saying so.
5160 * A better interface would have been to return a hash,
5161 * but we are accursed by our history, alas. --jhi. */
5162 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5164 sv_setiv(sv, (IV)pwent->pw_change);
5167 sv_setiv(sv, (IV)pwent->pw_quota);
5170 sv_setpv(sv, pwent->pw_age);
5175 /* pw_class and pw_comment are mutually exclusive--.
5176 * see the above note for pw_change, pw_quota, and pw_age. */
5177 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5179 sv_setpv(sv, pwent->pw_class);
5182 sv_setpv(sv, pwent->pw_comment);
5186 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5188 sv_setpv(sv, pwent->pw_gecos);
5190 # ifndef INCOMPLETE_TAINTS
5191 /* pw_gecos is tainted because user himself can diddle with it. */
5195 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5196 sv_setpv(sv, pwent->pw_dir);
5198 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5199 sv_setpv(sv, pwent->pw_shell);
5200 # ifndef INCOMPLETE_TAINTS
5201 /* pw_shell is tainted because user himself can diddle with it. */
5206 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5207 sv_setiv(sv, (IV)pwent->pw_expire);
5212 DIE(aTHX_ PL_no_func, "getpwent");
5218 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5223 DIE(aTHX_ PL_no_func, "setpwent");
5229 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5234 DIE(aTHX_ PL_no_func, "endpwent");
5243 DIE(aTHX_ PL_no_func, "getgrnam");
5252 DIE(aTHX_ PL_no_func, "getgrgid");
5260 I32 which = PL_op->op_type;
5261 register char **elem;
5263 struct group *grent;
5266 if (which == OP_GGRNAM)
5267 grent = (struct group *)getgrnam(POPpbytex);
5268 else if (which == OP_GGRGID)
5269 grent = (struct group *)getgrgid(POPi);
5272 grent = (struct group *)getgrent();
5274 DIE(aTHX_ PL_no_func, "getgrent");
5278 if (GIMME != G_ARRAY) {
5279 PUSHs(sv = sv_newmortal());
5281 if (which == OP_GGRNAM)
5282 sv_setiv(sv, (IV)grent->gr_gid);
5284 sv_setpv(sv, grent->gr_name);
5290 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5291 sv_setpv(sv, grent->gr_name);
5293 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5295 sv_setpv(sv, grent->gr_passwd);
5298 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5299 sv_setiv(sv, (IV)grent->gr_gid);
5301 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5302 for (elem = grent->gr_mem; elem && *elem; elem++) {
5303 sv_catpv(sv, *elem);
5305 sv_catpvn(sv, " ", 1);
5311 DIE(aTHX_ PL_no_func, "getgrent");
5317 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5322 DIE(aTHX_ PL_no_func, "setgrent");
5328 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5333 DIE(aTHX_ PL_no_func, "endgrent");
5343 if (!(tmps = PerlProc_getlogin()))
5345 PUSHp(tmps, strlen(tmps));
5348 DIE(aTHX_ PL_no_func, "getlogin");
5352 /* Miscellaneous. */
5357 dSP; dMARK; dORIGMARK; dTARGET;
5358 register I32 items = SP - MARK;
5359 unsigned long a[20];
5365 while (++MARK <= SP) {
5366 if (SvTAINTED(*MARK)) {
5372 TAINT_PROPER("syscall");
5375 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5376 * or where sizeof(long) != sizeof(char*). But such machines will
5377 * not likely have syscall implemented either, so who cares?
5379 while (++MARK <= SP) {
5380 if (SvNIOK(*MARK) || !i)
5381 a[i++] = SvIV(*MARK);
5382 else if (*MARK == &PL_sv_undef)
5385 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5391 DIE(aTHX_ "Too many args to syscall");
5393 DIE(aTHX_ "Too few args to syscall");
5395 retval = syscall(a[0]);
5398 retval = syscall(a[0],a[1]);
5401 retval = syscall(a[0],a[1],a[2]);
5404 retval = syscall(a[0],a[1],a[2],a[3]);
5407 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5410 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5413 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5416 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5420 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5423 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5426 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],
5439 a[10],a[11],a[12],a[13]);
5441 #endif /* atarist */
5447 DIE(aTHX_ PL_no_func, "syscall");
5451 #ifdef FCNTL_EMULATE_FLOCK
5453 /* XXX Emulate flock() with fcntl().
5454 What's really needed is a good file locking module.
5458 fcntl_emulate_flock(int fd, int operation)
5462 switch (operation & ~LOCK_NB) {
5464 flock.l_type = F_RDLCK;
5467 flock.l_type = F_WRLCK;
5470 flock.l_type = F_UNLCK;
5476 flock.l_whence = SEEK_SET;
5477 flock.l_start = flock.l_len = (Off_t)0;
5479 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5482 #endif /* FCNTL_EMULATE_FLOCK */
5484 #ifdef LOCKF_EMULATE_FLOCK
5486 /* XXX Emulate flock() with lockf(). This is just to increase
5487 portability of scripts. The calls are not completely
5488 interchangeable. What's really needed is a good file
5492 /* The lockf() constants might have been defined in <unistd.h>.
5493 Unfortunately, <unistd.h> causes troubles on some mixed
5494 (BSD/POSIX) systems, such as SunOS 4.1.3.
5496 Further, the lockf() constants aren't POSIX, so they might not be
5497 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5498 just stick in the SVID values and be done with it. Sigh.
5502 # define F_ULOCK 0 /* Unlock a previously locked region */
5505 # define F_LOCK 1 /* Lock a region for exclusive use */
5508 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5511 # define F_TEST 3 /* Test a region for other processes locks */
5515 lockf_emulate_flock(int fd, int operation)
5521 /* flock locks entire file so for lockf we need to do the same */
5523 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5524 if (pos > 0) /* is seekable and needs to be repositioned */
5525 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5526 pos = -1; /* seek failed, so don't seek back afterwards */
5529 switch (operation) {
5531 /* LOCK_SH - get a shared lock */
5533 /* LOCK_EX - get an exclusive lock */
5535 i = lockf (fd, F_LOCK, 0);
5538 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5539 case LOCK_SH|LOCK_NB:
5540 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5541 case LOCK_EX|LOCK_NB:
5542 i = lockf (fd, F_TLOCK, 0);
5544 if ((errno == EAGAIN) || (errno == EACCES))
5545 errno = EWOULDBLOCK;
5548 /* LOCK_UN - unlock (non-blocking is a no-op) */
5550 case LOCK_UN|LOCK_NB:
5551 i = lockf (fd, F_ULOCK, 0);
5554 /* Default - can't decipher operation */
5561 if (pos > 0) /* need to restore position of the handle */
5562 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5567 #endif /* LOCKF_EMULATE_FLOCK */