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();
394 PL_last_in_gv = cGVOP_gv;
395 return do_readline();
404 if (SP - MARK != 1) {
406 do_join(TARG, &PL_sv_no, MARK, SP);
413 tmps = SvPV(tmpsv, len);
416 (void)SvUPGRADE(error, SVt_PV);
417 if (SvPOK(error) && SvCUR(error))
418 sv_catpv(error, "\t...caught");
420 tmps = SvPV(tmpsv, len);
423 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
425 Perl_warn(aTHX_ "%"SVf, tmpsv);
436 if (SP - MARK != 1) {
438 do_join(TARG, &PL_sv_no, MARK, SP);
440 tmps = SvPV(tmpsv, len);
446 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
450 (void)SvUPGRADE(error, SVt_PV);
451 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
453 SvSetSV(error,tmpsv);
454 else if (sv_isobject(error)) {
455 HV *stash = SvSTASH(SvRV(error));
456 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
458 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
459 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
466 call_sv((SV*)GvCV(gv),
467 G_SCALAR|G_EVAL|G_KEEPERR);
468 sv_setsv(error,*PL_stack_sp--);
474 if (SvPOK(error) && SvCUR(error))
475 sv_catpv(error, "\t...propagated");
477 tmps = SvPV(tmpsv, len);
481 tmpsv = sv_2mortal(newSVpvn("Died", 4));
483 DIE(aTHX_ "%"SVf, tmpsv);
503 DIE(aTHX_ PL_no_usym, "filehandle");
504 if ((io = GvIOp(gv)))
505 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
507 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
508 /* Method's args are same as ours ... */
509 /* ... except handle is replaced by the object */
510 *MARK-- = SvTIED_obj((SV*)io, mg);
514 call_method("OPEN", G_SCALAR);
527 tmps = SvPV(sv, len);
528 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
531 PUSHi( (I32)PL_forkprocess );
532 else if (PL_forkprocess == 0) /* we are a new child */
551 if (gv && (io = GvIO(gv))
552 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
555 XPUSHs(SvTIED_obj((SV*)io, mg));
558 call_method("CLOSE", G_SCALAR);
564 PUSHs(boolSV(do_close(gv, TRUE)));
584 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
585 DIE(aTHX_ PL_no_usym, "filehandle");
590 do_close(rgv, FALSE);
592 do_close(wgv, FALSE);
594 if (PerlProc_pipe(fd) < 0)
597 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
598 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
599 IoIFP(wstio) = IoOFP(wstio);
600 IoTYPE(rstio) = IoTYPE_RDONLY;
601 IoTYPE(wstio) = IoTYPE_WRONLY;
603 if (!IoIFP(rstio) || !IoOFP(wstio)) {
604 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
605 else PerlLIO_close(fd[0]);
606 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
607 else PerlLIO_close(fd[1]);
610 #if defined(HAS_FCNTL) && defined(F_SETFD)
611 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
612 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
619 DIE(aTHX_ PL_no_func, "pipe");
635 if (gv && (io = GvIO(gv))
636 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
639 XPUSHs(SvTIED_obj((SV*)io, mg));
642 call_method("FILENO", G_SCALAR);
648 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
649 /* Can't do this because people seem to do things like
650 defined(fileno($foo)) to check whether $foo is a valid fh.
651 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
652 report_evil_fh(gv, io, PL_op->op_type);
657 PUSHi(PerlIO_fileno(fp));
668 anum = PerlLIO_umask(0);
669 (void)PerlLIO_umask(anum);
672 anum = PerlLIO_umask(POPi);
673 TAINT_PROPER("umask");
676 /* Only DIE if trying to restrict permissions on `user' (self).
677 * Otherwise it's harmless and more useful to just return undef
678 * since 'group' and 'other' concepts probably don't exist here. */
679 if (MAXARG >= 1 && (POPi & 0700))
680 DIE(aTHX_ "umask not implemented");
681 XPUSHs(&PL_sv_undef);
703 if (gv && (io = GvIO(gv))
704 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
707 XPUSHs(SvTIED_obj((SV*)io, mg));
712 call_method("BINMODE", G_SCALAR);
719 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
720 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
721 report_evil_fh(gv, io, PL_op->op_type);
725 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
726 (discp) ? SvPV_nolen(discp) : Nullch))
740 I32 markoff = MARK - PL_stack_base;
742 int how = PERL_MAGIC_tied;
747 switch(SvTYPE(varsv)) {
749 methname = "TIEHASH";
750 HvEITER((HV *)varsv) = Null(HE *);
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;
763 /* For tied filehandles, we apply tiedscalar magic to the IO
764 slot of the GP rather than the GV itself. AMS 20010812 */
766 GvIOp(varsv) = newIO();
767 varsv = (SV *)GvIOp(varsv);
770 methname = "TIESCALAR";
771 how = PERL_MAGIC_tiedscalar;
775 if (sv_isobject(*MARK)) {
777 PUSHSTACKi(PERLSI_MAGIC);
783 call_method(methname, G_SCALAR);
786 /* Not clear why we don't call call_method here too.
787 * perhaps to get different error message ?
789 stash = gv_stashsv(*MARK, FALSE);
790 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
791 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
792 methname, SvPV(*MARK,n_a));
795 PUSHSTACKi(PERLSI_MAGIC);
801 call_sv((SV*)GvCV(gv), G_SCALAR);
807 if (sv_isobject(sv)) {
808 sv_unmagic(varsv, how);
809 /* Croak if a self-tie on an aggregate is attempted. */
810 if (varsv == SvRV(sv) &&
811 (SvTYPE(sv) == SVt_PVAV ||
812 SvTYPE(sv) == SVt_PVHV))
814 "Self-ties of arrays and hashes are not supported");
815 sv_magic(varsv, sv, how, Nullch, 0);
818 SP = PL_stack_base + markoff;
828 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
829 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
831 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
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 ) ;
865 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
866 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
868 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
871 if ((mg = SvTIED_mg(sv, how))) {
872 SV *osv = SvTIED_obj(sv, mg);
873 if (osv == mg->mg_obj)
874 osv = sv_mortalcopy(osv);
892 sv = sv_mortalcopy(&PL_sv_no);
893 sv_setpv(sv, "AnyDBM_File");
894 stash = gv_stashsv(sv, FALSE);
895 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
897 require_pv("AnyDBM_File.pm");
899 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
900 DIE(aTHX_ "No dbm on this machine");
910 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
912 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
915 call_sv((SV*)GvCV(gv), G_SCALAR);
918 if (!sv_isobject(TOPs)) {
923 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
926 call_sv((SV*)GvCV(gv), G_SCALAR);
930 if (sv_isobject(TOPs)) {
931 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
932 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
954 struct timeval timebuf;
955 struct timeval *tbuf = &timebuf;
959 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
964 # if BYTEORDER & 0xf0000
965 # define ORDERBYTE (0x88888888 - BYTEORDER)
967 # define ORDERBYTE (0x4444 - BYTEORDER)
973 for (i = 1; i <= 3; i++) {
981 /* little endians can use vecs directly */
982 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
983 # if SELECT_MIN_BITS > 1
984 /* If SELECT_MIN_BITS is greater than one we most probably will want
985 * to align the sizes with SELECT_MIN_BITS/8 because for example
986 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
987 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
988 * on (sets/tests/clears bits) is 32 bits. */
989 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
991 growsize = sizeof(fd_set);
1000 masksize = NFDBITS / NBBY;
1002 masksize = sizeof(long); /* documented int, everyone seems to use long */
1004 growsize = maxlen + (masksize - (maxlen % masksize));
1005 Zero(&fd_sets[0], 4, char*);
1013 timebuf.tv_sec = (long)value;
1014 value -= (NV)timebuf.tv_sec;
1015 timebuf.tv_usec = (long)(value * 1000000.0);
1018 tbuf = Null(struct timeval*);
1020 for (i = 1; i <= 3; i++) {
1026 else if (!SvPOK(sv))
1027 SvPV_force(sv,n_a); /* force string conversion */
1030 Sv_Grow(sv, growsize);
1034 while (++j <= growsize) {
1038 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1040 New(403, fd_sets[i], growsize, char);
1041 for (offset = 0; offset < growsize; offset += masksize) {
1042 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1043 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1046 fd_sets[i] = SvPVX(sv);
1050 nfound = PerlSock_select(
1052 (Select_fd_set_t) fd_sets[1],
1053 (Select_fd_set_t) fd_sets[2],
1054 (Select_fd_set_t) fd_sets[3],
1056 for (i = 1; i <= 3; i++) {
1059 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1061 for (offset = 0; offset < growsize; offset += masksize) {
1062 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1063 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1065 Safefree(fd_sets[i]);
1072 if (GIMME == G_ARRAY && tbuf) {
1073 value = (NV)(timebuf.tv_sec) +
1074 (NV)(timebuf.tv_usec) / 1000000.0;
1075 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1076 sv_setnv(sv, value);
1080 DIE(aTHX_ "select not implemented");
1085 Perl_setdefout(pTHX_ GV *gv)
1088 (void)SvREFCNT_inc(gv);
1090 SvREFCNT_dec(PL_defoutgv);
1097 GV *newdefout, *egv;
1100 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1102 egv = GvEGV(PL_defoutgv);
1107 XPUSHs(&PL_sv_undef);
1109 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1110 if (gvp && *gvp == egv) {
1111 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1115 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1120 if (!GvIO(newdefout))
1121 gv_IOadd(newdefout);
1122 setdefout(newdefout);
1140 if (gv && (io = GvIO(gv))
1141 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1143 I32 gimme = GIMME_V;
1145 XPUSHs(SvTIED_obj((SV*)io, mg));
1148 call_method("GETC", gimme);
1151 if (gimme == G_SCALAR)
1152 SvSetMagicSV_nosteal(TARG, TOPs);
1155 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1158 sv_setpv(TARG, " ");
1159 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1160 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1161 /* Find out how many bytes the char needs */
1162 Size_t len = UTF8SKIP(SvPVX(TARG));
1165 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1166 SvCUR_set(TARG,1+len);
1176 return pp_sysread();
1180 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1182 register PERL_CONTEXT *cx;
1183 I32 gimme = GIMME_V;
1184 AV* padlist = CvPADLIST(cv);
1185 SV** svp = AvARRAY(padlist);
1191 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1193 SAVEVPTR(PL_curpad);
1194 PL_curpad = AvARRAY((AV*)svp[1]);
1196 setdefout(gv); /* locally select filehandle so $% et al work */
1229 SV *tmpsv = sv_newmortal();
1230 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1231 name = SvPV_nolen(tmpsv);
1234 DIE(aTHX_ "Undefined format \"%s\" called", name);
1235 DIE(aTHX_ "Not a format reference");
1238 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1240 IoFLAGS(io) &= ~IOf_DIDTOP;
1241 return doform(cv,gv,PL_op->op_next);
1247 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1248 register IO *io = GvIOp(gv);
1249 PerlIO *ofp = IoOFP(io);
1253 register PERL_CONTEXT *cx;
1255 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1256 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1259 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1260 PL_formtarget != PL_toptarget)
1264 if (!IoTOP_GV(io)) {
1268 if (!IoTOP_NAME(io)) {
1269 if (!IoFMT_NAME(io))
1270 IoFMT_NAME(io) = savepv(GvNAME(gv));
1271 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1272 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1273 if ((topgv && GvFORM(topgv)) ||
1274 !gv_fetchpv("top",FALSE,SVt_PVFM))
1275 IoTOP_NAME(io) = savepv(SvPVX(topname));
1277 IoTOP_NAME(io) = savepv("top");
1279 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1280 if (!topgv || !GvFORM(topgv)) {
1281 IoLINES_LEFT(io) = 100000000;
1284 IoTOP_GV(io) = topgv;
1286 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1287 I32 lines = IoLINES_LEFT(io);
1288 char *s = SvPVX(PL_formtarget);
1289 if (lines <= 0) /* Yow, header didn't even fit!!! */
1291 while (lines-- > 0) {
1292 s = strchr(s, '\n');
1298 STRLEN save = SvCUR(PL_formtarget);
1299 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1300 do_print(PL_formtarget, ofp);
1301 SvCUR_set(PL_formtarget, save);
1302 sv_chop(PL_formtarget, s);
1303 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1306 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1307 do_print(PL_formfeed, ofp);
1308 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1310 PL_formtarget = PL_toptarget;
1311 IoFLAGS(io) |= IOf_DIDTOP;
1314 DIE(aTHX_ "bad top format reference");
1319 SV *sv = sv_newmortal();
1320 gv_efullname4(sv, fgv, Nullch, FALSE);
1321 name = SvPV_nolen(sv);
1324 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1327 DIE(aTHX_ "Undefined top format called");
1331 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1332 return doform(cv,gv,PL_op);
1336 POPBLOCK(cx,PL_curpm);
1342 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1344 /* integrate with report_evil_fh()? */
1347 SV* sv = sv_newmortal();
1348 gv_efullname4(sv, gv, Nullch, FALSE);
1349 name = SvPV_nolen(sv);
1352 Perl_warner(aTHX_ WARN_IO,
1353 "Filehandle %s opened only for input", name);
1355 Perl_warner(aTHX_ WARN_IO,
1356 "Filehandle opened only for input");
1358 else if (ckWARN(WARN_CLOSED))
1359 report_evil_fh(gv, io, PL_op->op_type);
1364 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1365 if (ckWARN(WARN_IO))
1366 Perl_warner(aTHX_ WARN_IO, "page overflow");
1368 if (!do_print(PL_formtarget, fp))
1371 FmLINES(PL_formtarget) = 0;
1372 SvCUR_set(PL_formtarget, 0);
1373 *SvEND(PL_formtarget) = '\0';
1374 if (IoFLAGS(io) & IOf_FLUSH)
1375 (void)PerlIO_flush(fp);
1380 PL_formtarget = PL_bodytarget;
1382 return pop_return();
1387 dSP; dMARK; dORIGMARK;
1394 if (PL_op->op_flags & OPf_STACKED)
1399 if (gv && (io = GvIO(gv))
1400 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1402 if (MARK == ORIGMARK) {
1405 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1409 *MARK = SvTIED_obj((SV*)io, mg);
1412 call_method("PRINTF", G_SCALAR);
1415 MARK = ORIGMARK + 1;
1422 if (!(io = GvIO(gv))) {
1423 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1424 report_evil_fh(gv, io, PL_op->op_type);
1425 SETERRNO(EBADF,RMS$_IFI);
1428 else if (!(fp = IoOFP(io))) {
1429 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1430 /* integrate with report_evil_fh()? */
1434 gv_efullname4(sv, gv, Nullch, FALSE);
1435 name = SvPV_nolen(sv);
1438 Perl_warner(aTHX_ WARN_IO,
1439 "Filehandle %s opened only for input", name);
1441 Perl_warner(aTHX_ WARN_IO,
1442 "Filehandle opened only for input");
1444 else if (ckWARN(WARN_CLOSED))
1445 report_evil_fh(gv, io, PL_op->op_type);
1447 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1451 do_sprintf(sv, SP - MARK, MARK + 1);
1452 if (!do_print(sv, fp))
1455 if (IoFLAGS(io) & IOf_FLUSH)
1456 if (PerlIO_flush(fp) == EOF)
1467 PUSHs(&PL_sv_undef);
1488 /* Need TIEHANDLE method ? */
1490 tmps = SvPV(sv, len);
1491 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1492 IoLINES(GvIOp(gv)) = 0;
1496 PUSHs(&PL_sv_undef);
1503 dSP; dMARK; dORIGMARK; dTARGET;
1510 Sock_size_t bufsize;
1519 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1520 && gv && (io = GvIO(gv))
1521 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1526 *MARK = SvTIED_obj((SV*)io, mg);
1528 call_method("READ", G_SCALAR);
1541 sv_setpvn(bufsv, "", 0);
1542 length = SvIVx(*++MARK);
1545 offset = SvIVx(*++MARK);
1549 if (!io || !IoIFP(io))
1551 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1552 buffer = SvPVutf8_force(bufsv, blen);
1553 /* UTF8 may not have been set if they are all low bytes */
1557 buffer = SvPV_force(bufsv, blen);
1560 DIE(aTHX_ "Negative length");
1564 if (PL_op->op_type == OP_RECV) {
1565 char namebuf[MAXPATHLEN];
1566 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1567 bufsize = sizeof (struct sockaddr_in);
1569 bufsize = sizeof namebuf;
1571 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1575 buffer = SvGROW(bufsv, length+1);
1576 /* 'offset' means 'flags' here */
1577 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1578 (struct sockaddr *)namebuf, &bufsize);
1582 /* Bogus return without padding */
1583 bufsize = sizeof (struct sockaddr_in);
1585 SvCUR_set(bufsv, count);
1586 *SvEND(bufsv) = '\0';
1587 (void)SvPOK_only(bufsv);
1591 /* This should not be marked tainted if the fp is marked clean */
1592 if (!(IoFLAGS(io) & IOf_UNTAINT))
1593 SvTAINTED_on(bufsv);
1595 sv_setpvn(TARG, namebuf, bufsize);
1600 if (PL_op->op_type == OP_RECV)
1601 DIE(aTHX_ PL_no_sock_func, "recv");
1603 if (DO_UTF8(bufsv)) {
1604 /* offset adjust in characters not bytes */
1605 blen = sv_len_utf8(bufsv);
1609 DIE(aTHX_ "Offset outside string");
1612 if (DO_UTF8(bufsv)) {
1613 /* convert offset-as-chars to offset-as-bytes */
1614 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1617 bufsize = SvCUR(bufsv);
1618 buffer = SvGROW(bufsv, length+offset+1);
1619 if (offset > bufsize) { /* Zero any newly allocated space */
1620 Zero(buffer+bufsize, offset-bufsize, char);
1622 buffer = buffer + offset;
1624 if (PL_op->op_type == OP_SYSREAD) {
1625 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1626 if (IoTYPE(io) == IoTYPE_SOCKET) {
1627 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1633 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1638 #ifdef HAS_SOCKET__bad_code_maybe
1639 if (IoTYPE(io) == IoTYPE_SOCKET) {
1640 char namebuf[MAXPATHLEN];
1641 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1642 bufsize = sizeof (struct sockaddr_in);
1644 bufsize = sizeof namebuf;
1646 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1647 (struct sockaddr *)namebuf, &bufsize);
1652 count = PerlIO_read(IoIFP(io), buffer, length);
1653 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1654 if (count == 0 && PerlIO_error(IoIFP(io)))
1658 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1660 /* integrate with report_evil_fh()? */
1663 SV* sv = sv_newmortal();
1664 gv_efullname4(sv, gv, Nullch, FALSE);
1665 name = SvPV_nolen(sv);
1668 Perl_warner(aTHX_ WARN_IO,
1669 "Filehandle %s opened only for output", name);
1671 Perl_warner(aTHX_ WARN_IO,
1672 "Filehandle opened only for output");
1676 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1677 *SvEND(bufsv) = '\0';
1678 (void)SvPOK_only(bufsv);
1679 if (fp_utf8 && !IN_BYTES) {
1680 /* Look at utf8 we got back and count the characters */
1681 char *bend = buffer + count;
1682 while (buffer < bend) {
1683 STRLEN skip = UTF8SKIP(buffer);
1684 if (buffer+skip > bend) {
1685 /* partial character - try for rest of it */
1686 length = skip - (bend-buffer);
1687 offset = bend - SvPVX(bufsv);
1695 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1696 provided amount read (count) was what was requested (length)
1698 if (got < wanted && count == length) {
1699 length = (wanted-got);
1700 offset = bend - SvPVX(bufsv);
1703 /* return value is character count */
1708 /* This should not be marked tainted if the fp is marked clean */
1709 if (!(IoFLAGS(io) & IOf_UNTAINT))
1710 SvTAINTED_on(bufsv);
1723 int items = (SP - PL_stack_base) - TOPMARK;
1727 sv = sv_2mortal(newSViv(sv_len(*SP)));
1736 dSP; dMARK; dORIGMARK; dTARGET;
1747 if (PL_op->op_type == OP_SYSWRITE
1748 && gv && (io = GvIO(gv))
1749 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1754 *MARK = SvTIED_obj((SV*)io, mg);
1756 call_method("WRITE", G_SCALAR);
1767 #if Size_t_size > IVSIZE
1768 length = (Size_t)SvNVx(*++MARK);
1770 length = (Size_t)SvIVx(*++MARK);
1772 if ((SSize_t)length < 0)
1773 DIE(aTHX_ "Negative length");
1776 if (!io || !IoIFP(io)) {
1778 if (ckWARN(WARN_CLOSED))
1779 report_evil_fh(gv, io, PL_op->op_type);
1783 if (PerlIO_isutf8(IoIFP(io))) {
1784 buffer = SvPVutf8(bufsv, blen);
1788 sv_utf8_downgrade(bufsv, FALSE);
1789 buffer = SvPV(bufsv, blen);
1792 if (PL_op->op_type == OP_SYSWRITE) {
1794 if (DO_UTF8(bufsv)) {
1795 /* length and offset are in chars */
1796 blen = sv_len_utf8(bufsv);
1799 offset = SvIVx(*++MARK);
1802 DIE(aTHX_ "Offset outside string");
1804 } else if (offset >= blen && blen > 0)
1805 DIE(aTHX_ "Offset outside string");
1808 if (length > blen - offset)
1809 length = blen - offset;
1810 if (DO_UTF8(bufsv)) {
1811 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1812 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1815 buffer = buffer+offset;
1817 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1818 if (IoTYPE(io) == IoTYPE_SOCKET) {
1819 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1825 /* See the note at doio.c:do_print about filesize limits. --jhi */
1826 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1831 else if (SP > MARK) {
1834 sockbuf = SvPVx(*++MARK, mlen);
1835 /* length is really flags */
1836 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1837 length, (struct sockaddr *)sockbuf, mlen);
1840 /* length is really flags */
1841 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1844 DIE(aTHX_ PL_no_sock_func, "send");
1849 #if Size_t_size > IVSIZE
1863 return pp_sysread();
1874 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1876 gv = PL_last_in_gv = PL_argvgv;
1878 if (io && !IoIFP(io)) {
1879 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1881 IoFLAGS(io) &= ~IOf_START;
1882 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1883 sv_setpvn(GvSV(gv), "-", 1);
1884 SvSETMAGIC(GvSV(gv));
1886 else if (!nextargv(gv))
1891 gv = PL_last_in_gv; /* eof */
1894 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1896 if (gv && (io = GvIO(gv))
1897 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1900 XPUSHs(SvTIED_obj((SV*)io, mg));
1903 call_method("EOF", G_SCALAR);
1909 PUSHs(boolSV(!gv || do_eof(gv)));
1923 gv = PL_last_in_gv = (GV*)POPs;
1925 if (gv && (io = GvIO(gv))
1926 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1929 XPUSHs(SvTIED_obj((SV*)io, mg));
1932 call_method("TELL", G_SCALAR);
1938 #if LSEEKSIZE > IVSIZE
1939 PUSHn( do_tell(gv) );
1941 PUSHi( do_tell(gv) );
1948 return pp_sysseek();
1957 #if LSEEKSIZE > IVSIZE
1958 Off_t offset = (Off_t)SvNVx(POPs);
1960 Off_t offset = (Off_t)SvIVx(POPs);
1964 gv = PL_last_in_gv = (GV*)POPs;
1966 if (gv && (io = GvIO(gv))
1967 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1970 XPUSHs(SvTIED_obj((SV*)io, mg));
1971 #if LSEEKSIZE > IVSIZE
1972 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1974 XPUSHs(sv_2mortal(newSViv(offset)));
1976 XPUSHs(sv_2mortal(newSViv(whence)));
1979 call_method("SEEK", G_SCALAR);
1985 if (PL_op->op_type == OP_SEEK)
1986 PUSHs(boolSV(do_seek(gv, offset, whence)));
1988 Off_t sought = do_sysseek(gv, offset, whence);
1990 PUSHs(&PL_sv_undef);
1993 #if LSEEKSIZE > IVSIZE
1998 : newSVpvn(zero_but_true, ZBTLEN);
1999 PUSHs(sv_2mortal(sv));
2008 /* There seems to be no consensus on the length type of truncate()
2009 * and ftruncate(), both off_t and size_t have supporters. In
2010 * general one would think that when using large files, off_t is
2011 * at least as wide as size_t, so using an off_t should be okay. */
2012 /* XXX Configure probe for the length type of *truncate() needed XXX */
2015 #if Size_t_size > IVSIZE
2020 /* Checking for length < 0 is problematic as the type might or
2021 * might not be signed: if it is not, clever compilers will moan. */
2022 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2024 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2030 if (PL_op->op_flags & OPf_SPECIAL) {
2031 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2034 TAINT_PROPER("truncate");
2035 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2038 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2040 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2042 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2051 if (SvTYPE(sv) == SVt_PVGV) {
2052 tmpgv = (GV*)sv; /* *main::FRED for example */
2055 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2056 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2060 name = SvPV(sv, n_a);
2061 TAINT_PROPER("truncate");
2063 if (truncate(name, len) < 0)
2069 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2072 if (my_chsize(tmpfd, len) < 0)
2074 PerlLIO_close(tmpfd);
2083 SETERRNO(EBADF,RMS$_IFI);
2087 DIE(aTHX_ "truncate not implemented");
2100 unsigned int func = POPu;
2101 int optype = PL_op->op_type;
2105 IO *io = gv ? GvIOn(gv) : 0;
2107 if (!io || !argsv || !IoIFP(io)) {
2108 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2109 report_evil_fh(gv, io, PL_op->op_type);
2110 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2114 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2117 s = SvPV_force(argsv, len);
2118 need = IOCPARM_LEN(func);
2120 s = Sv_Grow(argsv, need + 1);
2121 SvCUR_set(argsv, need);
2124 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2127 retval = SvIV(argsv);
2128 s = INT2PTR(char*,retval); /* ouch */
2131 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2133 if (optype == OP_IOCTL)
2135 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2137 DIE(aTHX_ "ioctl is not implemented");
2141 #if defined(OS2) && defined(__EMX__)
2142 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2144 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2147 DIE(aTHX_ "fcntl is not implemented");
2151 if (s[SvCUR(argsv)] != 17)
2152 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2154 s[SvCUR(argsv)] = 0; /* put our null back */
2155 SvSETMAGIC(argsv); /* Assume it has changed */
2164 PUSHp(zero_but_true, ZBTLEN);
2184 if (gv && (io = GvIO(gv)))
2191 (void)PerlIO_flush(fp);
2192 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2195 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2196 report_evil_fh(gv, io, PL_op->op_type);
2198 SETERRNO(EBADF,RMS$_IFI);
2203 DIE(aTHX_ PL_no_func, "flock()");
2215 int protocol = POPi;
2221 io = gv ? GvIOn(gv) : NULL;
2224 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2225 report_evil_fh(gv, io, PL_op->op_type);
2227 do_close(gv, FALSE);
2228 SETERRNO(EBADF,LIB$_INVARG);
2233 do_close(gv, FALSE);
2235 TAINT_PROPER("socket");
2236 fd = PerlSock_socket(domain, type, protocol);
2239 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2240 IoOFP(io) = PerlIO_fdopen(fd, "w");
2241 IoTYPE(io) = IoTYPE_SOCKET;
2242 if (!IoIFP(io) || !IoOFP(io)) {
2243 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2244 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2245 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2248 #if defined(HAS_FCNTL) && defined(F_SETFD)
2249 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2253 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2258 DIE(aTHX_ PL_no_sock_func, "socket");
2264 #ifdef HAS_SOCKETPAIR
2270 int protocol = POPi;
2277 io1 = gv1 ? GvIOn(gv1) : NULL;
2278 io2 = gv2 ? GvIOn(gv2) : NULL;
2279 if (!gv1 || !gv2 || !io1 || !io2) {
2280 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2282 report_evil_fh(gv1, io1, PL_op->op_type);
2284 report_evil_fh(gv1, io2, PL_op->op_type);
2287 do_close(gv1, FALSE);
2289 do_close(gv2, FALSE);
2294 do_close(gv1, FALSE);
2296 do_close(gv2, FALSE);
2298 TAINT_PROPER("socketpair");
2299 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2301 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2302 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2303 IoTYPE(io1) = IoTYPE_SOCKET;
2304 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2305 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2306 IoTYPE(io2) = IoTYPE_SOCKET;
2307 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2308 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2309 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2310 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2311 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2312 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2313 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2316 #if defined(HAS_FCNTL) && defined(F_SETFD)
2317 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2318 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2323 DIE(aTHX_ PL_no_sock_func, "socketpair");
2331 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2332 extern void GETPRIVMODE();
2333 extern void GETUSERMODE();
2338 register IO *io = GvIOn(gv);
2342 int mpeprivmode = 0;
2345 if (!io || !IoIFP(io))
2348 addr = SvPV(addrsv, len);
2349 TAINT_PROPER("bind");
2350 #ifdef MPE /* Deal with MPE bind() peculiarities */
2351 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2352 /* The address *MUST* stupidly be zero. */
2353 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2354 /* PRIV mode is required to bind() to ports < 1024. */
2355 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2356 ((struct sockaddr_in *)addr)->sin_port > 0) {
2357 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2362 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2363 (struct sockaddr *)addr, len) >= 0)
2366 #ifdef MPE /* Switch back to USER mode */
2377 if (ckWARN(WARN_CLOSED))
2378 report_evil_fh(gv, io, PL_op->op_type);
2379 SETERRNO(EBADF,SS$_IVCHAN);
2382 DIE(aTHX_ PL_no_sock_func, "bind");
2393 register IO *io = GvIOn(gv);
2396 if (!io || !IoIFP(io))
2399 addr = SvPV(addrsv, len);
2400 TAINT_PROPER("connect");
2401 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2407 if (ckWARN(WARN_CLOSED))
2408 report_evil_fh(gv, io, PL_op->op_type);
2409 SETERRNO(EBADF,SS$_IVCHAN);
2412 DIE(aTHX_ PL_no_sock_func, "connect");
2422 register IO *io = gv ? GvIOn(gv) : NULL;
2424 if (!gv || !io || !IoIFP(io))
2427 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2433 if (ckWARN(WARN_CLOSED))
2434 report_evil_fh(gv, io, PL_op->op_type);
2435 SETERRNO(EBADF,SS$_IVCHAN);
2438 DIE(aTHX_ PL_no_sock_func, "listen");
2450 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2451 Sock_size_t len = sizeof saddr;
2463 if (!gstio || !IoIFP(gstio))
2468 do_close(ngv, FALSE);
2470 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2473 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2474 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2475 IoTYPE(nstio) = IoTYPE_SOCKET;
2476 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2477 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2478 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2479 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2482 #if defined(HAS_FCNTL) && defined(F_SETFD)
2483 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2487 len = sizeof saddr; /* EPOC somehow truncates info */
2488 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2491 PUSHp((char *)&saddr, len);
2495 if (ckWARN(WARN_CLOSED))
2496 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2497 SETERRNO(EBADF,SS$_IVCHAN);
2503 DIE(aTHX_ PL_no_sock_func, "accept");
2513 register IO *io = GvIOn(gv);
2515 if (!io || !IoIFP(io))
2518 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2522 if (ckWARN(WARN_CLOSED))
2523 report_evil_fh(gv, io, PL_op->op_type);
2524 SETERRNO(EBADF,SS$_IVCHAN);
2527 DIE(aTHX_ PL_no_sock_func, "shutdown");
2534 return pp_ssockopt();
2536 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2544 int optype = PL_op->op_type;
2547 unsigned int optname;
2553 if (optype == OP_GSOCKOPT)
2554 sv = sv_2mortal(NEWSV(22, 257));
2557 optname = (unsigned int) POPi;
2558 lvl = (unsigned int) POPi;
2562 if (!io || !IoIFP(io))
2565 fd = PerlIO_fileno(IoIFP(io));
2569 (void)SvPOK_only(sv);
2573 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2588 aint = (int)SvIV(sv);
2592 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2601 if (ckWARN(WARN_CLOSED))
2602 report_evil_fh(gv, io, optype);
2603 SETERRNO(EBADF,SS$_IVCHAN);
2608 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2615 return pp_getpeername();
2617 DIE(aTHX_ PL_no_sock_func, "getsockname");
2625 int optype = PL_op->op_type;
2629 register IO *io = GvIOn(gv);
2632 if (!io || !IoIFP(io))
2635 sv = sv_2mortal(NEWSV(22, 257));
2636 (void)SvPOK_only(sv);
2640 fd = PerlIO_fileno(IoIFP(io));
2642 case OP_GETSOCKNAME:
2643 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2646 case OP_GETPEERNAME:
2647 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2649 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2651 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";
2652 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2653 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2654 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2655 sizeof(u_short) + sizeof(struct in_addr))) {
2662 #ifdef BOGUS_GETNAME_RETURN
2663 /* Interactive Unix, getpeername() and getsockname()
2664 does not return valid namelen */
2665 if (len == BOGUS_GETNAME_RETURN)
2666 len = sizeof(struct sockaddr);
2674 if (ckWARN(WARN_CLOSED))
2675 report_evil_fh(gv, io, optype);
2676 SETERRNO(EBADF,SS$_IVCHAN);
2681 DIE(aTHX_ PL_no_sock_func, "getpeername");
2700 if (PL_op->op_flags & OPf_REF) {
2702 if (PL_op->op_type == OP_LSTAT) {
2703 if (PL_laststype != OP_LSTAT)
2704 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2705 if (ckWARN(WARN_IO) && gv != PL_defgv)
2706 Perl_warner(aTHX_ WARN_IO,
2707 "lstat() on filehandle %s", GvENAME(gv));
2708 /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
2712 if (gv != PL_defgv) {
2713 PL_laststype = OP_STAT;
2715 sv_setpv(PL_statname, "");
2716 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2717 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2719 if (PL_laststatval < 0) {
2720 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2721 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2727 if (SvTYPE(sv) == SVt_PVGV) {
2731 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2735 sv_setpv(PL_statname, SvPV(sv,n_a));
2738 PL_laststype = PL_op->op_type;
2739 if (PL_op->op_type == OP_LSTAT)
2740 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2743 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2744 if (PL_laststatval < 0) {
2745 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2746 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
2752 if (gimme != G_ARRAY) {
2753 if (gimme != G_VOID)
2754 XPUSHs(boolSV(max));
2760 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2761 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2762 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2763 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2764 #if Uid_t_size > IVSIZE
2765 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2767 # if Uid_t_sign <= 0
2768 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2770 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2773 #if Gid_t_size > IVSIZE
2774 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2776 # if Gid_t_sign <= 0
2777 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2779 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2782 #ifdef USE_STAT_RDEV
2783 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2785 PUSHs(sv_2mortal(newSVpvn("", 0)));
2787 #if Off_t_size > IVSIZE
2788 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2790 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2793 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2794 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2795 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2797 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2798 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2799 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2801 #ifdef USE_STAT_BLOCKS
2802 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2803 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2805 PUSHs(sv_2mortal(newSVpvn("", 0)));
2806 PUSHs(sv_2mortal(newSVpvn("", 0)));
2816 #if defined(HAS_ACCESS) && defined(R_OK)
2818 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2819 result = access(TOPpx, R_OK);
2834 if (cando(S_IRUSR, 0, &PL_statcache))
2843 #if defined(HAS_ACCESS) && defined(W_OK)
2845 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2846 result = access(TOPpx, W_OK);
2861 if (cando(S_IWUSR, 0, &PL_statcache))
2870 #if defined(HAS_ACCESS) && defined(X_OK)
2872 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2873 result = access(TOPpx, X_OK);
2888 if (cando(S_IXUSR, 0, &PL_statcache))
2897 #ifdef PERL_EFF_ACCESS_R_OK
2899 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2900 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2915 if (cando(S_IRUSR, 1, &PL_statcache))
2924 #ifdef PERL_EFF_ACCESS_W_OK
2926 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2927 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2942 if (cando(S_IWUSR, 1, &PL_statcache))
2951 #ifdef PERL_EFF_ACCESS_X_OK
2953 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2954 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2969 if (cando(S_IXUSR, 1, &PL_statcache))
2976 I32 result = my_stat();
2985 return pp_ftrowned();
2990 I32 result = my_stat();
2994 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3002 I32 result = my_stat();
3006 if (PL_statcache.st_size == 0)
3013 I32 result = my_stat();
3017 #if Off_t_size > IVSIZE
3018 PUSHn(PL_statcache.st_size);
3020 PUSHi(PL_statcache.st_size);
3027 I32 result = my_stat();
3031 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3037 I32 result = my_stat();
3041 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3047 I32 result = my_stat();
3051 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3057 I32 result = my_stat();
3061 if (S_ISSOCK(PL_statcache.st_mode))
3068 I32 result = my_stat();
3072 if (S_ISCHR(PL_statcache.st_mode))
3079 I32 result = my_stat();
3083 if (S_ISBLK(PL_statcache.st_mode))
3090 I32 result = my_stat();
3094 if (S_ISREG(PL_statcache.st_mode))
3101 I32 result = my_stat();
3105 if (S_ISDIR(PL_statcache.st_mode))
3112 I32 result = my_stat();
3116 if (S_ISFIFO(PL_statcache.st_mode))
3123 I32 result = my_lstat();
3127 if (S_ISLNK(PL_statcache.st_mode))
3136 I32 result = my_stat();
3140 if (PL_statcache.st_mode & S_ISUID)
3150 I32 result = my_stat();
3154 if (PL_statcache.st_mode & S_ISGID)
3164 I32 result = my_stat();
3168 if (PL_statcache.st_mode & S_ISVTX)
3179 char *tmps = Nullch;
3182 if (PL_op->op_flags & OPf_REF)
3184 else if (isGV(TOPs))
3186 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3187 gv = (GV*)SvRV(POPs);
3189 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3191 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3192 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3193 else if (tmps && isDIGIT(*tmps))
3197 if (PerlLIO_isatty(fd))
3202 #if defined(atarist) /* this will work with atariST. Configure will
3203 make guesses for other systems. */
3204 # define FILE_base(f) ((f)->_base)
3205 # define FILE_ptr(f) ((f)->_ptr)
3206 # define FILE_cnt(f) ((f)->_cnt)
3207 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3217 register STDCHAR *s;
3224 if (PL_op->op_flags & OPf_REF)
3226 else if (isGV(TOPs))
3228 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3229 gv = (GV*)SvRV(POPs);
3235 if (gv == PL_defgv) {
3237 io = GvIO(PL_statgv);
3240 goto really_filename;
3245 PL_laststatval = -1;
3246 sv_setpv(PL_statname, "");
3247 io = GvIO(PL_statgv);
3249 if (io && IoIFP(io)) {
3250 if (! PerlIO_has_base(IoIFP(io)))
3251 DIE(aTHX_ "-T and -B not implemented on filehandles");
3252 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3253 if (PL_laststatval < 0)
3255 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3256 if (PL_op->op_type == OP_FTTEXT)
3261 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3262 i = PerlIO_getc(IoIFP(io));
3264 (void)PerlIO_ungetc(IoIFP(io),i);
3266 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3268 len = PerlIO_get_bufsiz(IoIFP(io));
3269 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3270 /* sfio can have large buffers - limit to 512 */
3275 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3277 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3279 SETERRNO(EBADF,RMS$_IFI);
3287 PL_laststatval = -1;
3288 sv_setpv(PL_statname, SvPV(sv, n_a));
3289 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3290 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3291 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
3294 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3295 if (PL_laststatval < 0) {
3296 (void)PerlIO_close(fp);
3299 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3300 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3301 (void)PerlIO_close(fp);
3303 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3304 RETPUSHNO; /* special case NFS directories */
3305 RETPUSHYES; /* null file is anything */
3310 /* now scan s to look for textiness */
3311 /* XXX ASCII dependent code */
3313 #if defined(DOSISH) || defined(USEMYBINMODE)
3314 /* ignore trailing ^Z on short files */
3315 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3319 for (i = 0; i < len; i++, s++) {
3320 if (!*s) { /* null never allowed in text */
3325 else if (!(isPRINT(*s) || isSPACE(*s)))
3328 else if (*s & 128) {
3330 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3333 /* utf8 characters don't count as odd */
3334 if (UTF8_IS_START(*s)) {
3335 int ulen = UTF8SKIP(s);
3336 if (ulen < len - i) {
3338 for (j = 1; j < ulen; j++) {
3339 if (!UTF8_IS_CONTINUATION(s[j]))
3342 --ulen; /* loop does extra increment */
3352 *s != '\n' && *s != '\r' && *s != '\b' &&
3353 *s != '\t' && *s != '\f' && *s != 27)
3358 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3382 if (!tmps || !*tmps) {
3383 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
3385 tmps = SvPV(*svp, n_a);
3387 if (!tmps || !*tmps) {
3388 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
3390 tmps = SvPV(*svp, n_a);
3393 if (!tmps || !*tmps) {
3394 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
3396 tmps = SvPV(*svp, n_a);
3399 TAINT_PROPER("chdir");
3400 PUSHi( PerlDir_chdir(tmps) >= 0 );
3402 /* Clear the DEFAULT element of ENV so we'll get the new value
3404 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3412 dSP; dMARK; dTARGET;
3413 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3419 DIE(aTHX_ PL_no_func, "chown");
3429 TAINT_PROPER("chroot");
3430 PUSHi( chroot(tmps) >= 0 );
3433 DIE(aTHX_ PL_no_func, "chroot");
3439 dSP; dMARK; dTARGET;
3441 value = (I32)apply(PL_op->op_type, MARK, SP);
3449 dSP; dMARK; dTARGET;
3451 value = (I32)apply(PL_op->op_type, MARK, SP);
3459 dSP; dMARK; dTARGET;
3461 value = (I32)apply(PL_op->op_type, MARK, SP);
3473 char *tmps2 = POPpx;
3474 char *tmps = SvPV(TOPs, n_a);
3475 TAINT_PROPER("rename");
3477 anum = PerlLIO_rename(tmps, tmps2);
3479 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3480 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3483 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3484 (void)UNLINK(tmps2);
3485 if (!(anum = link(tmps, tmps2)))
3486 anum = UNLINK(tmps);
3500 char *tmps2 = POPpx;
3501 char *tmps = SvPV(TOPs, n_a);
3502 TAINT_PROPER("link");
3503 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3506 DIE(aTHX_ PL_no_func, "link");
3515 char *tmps2 = POPpx;
3516 char *tmps = SvPV(TOPs, n_a);
3517 TAINT_PROPER("symlink");
3518 SETi( symlink(tmps, tmps2) >= 0 );
3521 DIE(aTHX_ PL_no_func, "symlink");
3531 char buf[MAXPATHLEN];
3535 #ifndef INCOMPLETE_TAINTS
3539 len = readlink(tmps, buf, sizeof(buf) - 1);
3547 RETSETUNDEF; /* just pretend it's a normal file */
3551 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3553 S_dooneliner(pTHX_ char *cmd, char *filename)
3555 char *save_filename = filename;
3561 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3562 strcpy(cmdline, cmd);
3563 strcat(cmdline, " ");
3564 for (s = cmdline + strlen(cmdline); *filename; ) {
3569 myfp = PerlProc_popen(cmdline, "r");
3573 SV *tmpsv = sv_newmortal();
3574 /* Need to save/restore 'PL_rs' ?? */
3575 s = sv_gets(tmpsv, myfp, 0);
3576 (void)PerlProc_pclose(myfp);
3580 #ifdef HAS_SYS_ERRLIST
3585 /* you don't see this */
3587 #ifdef HAS_SYS_ERRLIST
3595 if (instr(s, errmsg)) {
3602 #define EACCES EPERM
3604 if (instr(s, "cannot make"))
3605 SETERRNO(EEXIST,RMS$_FEX);
3606 else if (instr(s, "existing file"))
3607 SETERRNO(EEXIST,RMS$_FEX);
3608 else if (instr(s, "ile exists"))
3609 SETERRNO(EEXIST,RMS$_FEX);
3610 else if (instr(s, "non-exist"))
3611 SETERRNO(ENOENT,RMS$_FNF);
3612 else if (instr(s, "does not exist"))
3613 SETERRNO(ENOENT,RMS$_FNF);
3614 else if (instr(s, "not empty"))
3615 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3616 else if (instr(s, "cannot access"))
3617 SETERRNO(EACCES,RMS$_PRV);
3619 SETERRNO(EPERM,RMS$_PRV);
3622 else { /* some mkdirs return no failure indication */
3623 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3624 if (PL_op->op_type == OP_RMDIR)
3629 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3654 tmps = SvPV(TOPs, len);
3655 /* Different operating and file systems take differently to
3656 * trailing slashes. According to POSIX 1003.1 1996 Edition
3657 * any number of trailing slashes should be allowed.
3658 * Thusly we snip them away so that even non-conforming
3659 * systems are happy. */
3660 /* We should probably do this "filtering" for all
3661 * the functions that expect (potentially) directory names:
3662 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3663 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3664 if (len > 1 && tmps[len-1] == '/') {
3665 while (tmps[len] == '/' && len > 1)
3667 tmps = savepvn(tmps, len);
3671 TAINT_PROPER("mkdir");
3673 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3675 SETi( dooneliner("mkdir", tmps) );
3676 oldumask = PerlLIO_umask(0);
3677 PerlLIO_umask(oldumask);
3678 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3692 TAINT_PROPER("rmdir");
3694 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3696 XPUSHi( dooneliner("rmdir", tmps) );
3701 /* Directory calls. */
3705 #if defined(Direntry_t) && defined(HAS_READDIR)
3708 char *dirname = POPpx;
3710 register IO *io = GvIOn(gv);
3716 PerlDir_close(IoDIRP(io));
3717 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3723 SETERRNO(EBADF,RMS$_DIR);
3726 DIE(aTHX_ PL_no_dir_func, "opendir");
3732 #if defined(Direntry_t) && defined(HAS_READDIR)
3734 #if !defined(I_DIRENT) && !defined(VMS)
3735 Direntry_t *readdir (DIR *);
3737 register Direntry_t *dp;
3739 register IO *io = GvIOn(gv);
3742 if (!io || !IoDIRP(io))
3745 if (GIMME == G_ARRAY) {
3747 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3749 sv = newSVpvn(dp->d_name, dp->d_namlen);
3751 sv = newSVpv(dp->d_name, 0);
3753 #ifndef INCOMPLETE_TAINTS
3754 if (!(IoFLAGS(io) & IOf_UNTAINT))
3757 XPUSHs(sv_2mortal(sv));
3761 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3764 sv = newSVpvn(dp->d_name, dp->d_namlen);
3766 sv = newSVpv(dp->d_name, 0);
3768 #ifndef INCOMPLETE_TAINTS
3769 if (!(IoFLAGS(io) & IOf_UNTAINT))
3772 XPUSHs(sv_2mortal(sv));
3778 SETERRNO(EBADF,RMS$_ISI);
3779 if (GIMME == G_ARRAY)
3784 DIE(aTHX_ PL_no_dir_func, "readdir");
3790 #if defined(HAS_TELLDIR) || defined(telldir)
3792 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3793 /* XXX netbsd still seemed to.
3794 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3795 --JHI 1999-Feb-02 */
3796 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3797 long telldir (DIR *);
3800 register IO *io = GvIOn(gv);
3802 if (!io || !IoDIRP(io))
3805 PUSHi( PerlDir_tell(IoDIRP(io)) );
3809 SETERRNO(EBADF,RMS$_ISI);
3812 DIE(aTHX_ PL_no_dir_func, "telldir");
3818 #if defined(HAS_SEEKDIR) || defined(seekdir)
3822 register IO *io = GvIOn(gv);
3824 if (!io || !IoDIRP(io))
3827 (void)PerlDir_seek(IoDIRP(io), along);
3832 SETERRNO(EBADF,RMS$_ISI);
3835 DIE(aTHX_ PL_no_dir_func, "seekdir");
3841 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3844 register IO *io = GvIOn(gv);
3846 if (!io || !IoDIRP(io))
3849 (void)PerlDir_rewind(IoDIRP(io));
3853 SETERRNO(EBADF,RMS$_ISI);
3856 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3862 #if defined(Direntry_t) && defined(HAS_READDIR)
3865 register IO *io = GvIOn(gv);
3867 if (!io || !IoDIRP(io))
3870 #ifdef VOID_CLOSEDIR
3871 PerlDir_close(IoDIRP(io));
3873 if (PerlDir_close(IoDIRP(io)) < 0) {
3874 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3883 SETERRNO(EBADF,RMS$_IFI);
3886 DIE(aTHX_ PL_no_dir_func, "closedir");
3890 /* Process control. */
3900 PERL_FLUSHALL_FOR_CHILD;
3901 childpid = PerlProc_fork();
3906 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV)))
3907 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3908 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3913 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3918 PERL_FLUSHALL_FOR_CHILD;
3919 childpid = PerlProc_fork();
3925 DIE(aTHX_ PL_no_func, "fork");
3932 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3937 #ifdef PERL_OLD_SIGNALS
3938 childpid = wait4pid(-1, &argflags, 0);
3940 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3944 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3945 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3946 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3948 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3953 DIE(aTHX_ PL_no_func, "wait");
3959 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3967 #ifdef PERL_OLD_SIGNALS
3968 childpid = wait4pid(childpid, &argflags, optype);
3970 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
3974 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3975 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3976 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3978 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3983 DIE(aTHX_ PL_no_func, "waitpid");
3989 dSP; dMARK; dORIGMARK; dTARGET;
3996 if (SP - MARK == 1) {
3998 (void)SvPV_nolen(TOPs); /* stringify for taint check */
4000 TAINT_PROPER("system");
4003 PERL_FLUSHALL_FOR_CHILD;
4004 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4008 Sigsave_t ihand,qhand; /* place to save signals during system() */
4010 if (PerlProc_pipe(pp) >= 0)
4012 while ((childpid = PerlProc_fork()) == -1) {
4013 if (errno != EAGAIN) {
4018 PerlLIO_close(pp[0]);
4019 PerlLIO_close(pp[1]);
4027 PerlLIO_close(pp[1]);
4029 rsignal_save(SIGINT, SIG_IGN, &ihand);
4030 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4033 result = wait4pid(childpid, &status, 0);
4034 } while (result == -1 && errno == EINTR);
4036 (void)rsignal_restore(SIGINT, &ihand);
4037 (void)rsignal_restore(SIGQUIT, &qhand);
4039 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4040 do_execfree(); /* free any memory child malloced on fork */
4046 while (n < sizeof(int)) {
4047 n1 = PerlLIO_read(pp[0],
4048 (void*)(((char*)&errkid)+n),
4054 PerlLIO_close(pp[0]);
4055 if (n) { /* Error */
4056 if (n != sizeof(int))
4057 DIE(aTHX_ "panic: kid popen errno read");
4058 errno = errkid; /* Propagate errno from kid */
4059 STATUS_CURRENT = -1;
4062 PUSHi(STATUS_CURRENT);
4066 PerlLIO_close(pp[0]);
4067 #if defined(HAS_FCNTL) && defined(F_SETFD)
4068 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4072 if (PL_op->op_flags & OPf_STACKED) {
4073 SV *really = *++MARK;
4074 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4076 else if (SP - MARK != 1)
4077 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4079 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4082 #else /* ! FORK or VMS or OS/2 */
4085 if (PL_op->op_flags & OPf_STACKED) {
4086 SV *really = *++MARK;
4087 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4089 else if (SP - MARK != 1)
4090 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4092 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4094 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4096 STATUS_NATIVE_SET(value);
4099 PUSHi(result ? value : STATUS_CURRENT);
4100 #endif /* !FORK or VMS */
4106 dSP; dMARK; dORIGMARK; dTARGET;
4110 PERL_FLUSHALL_FOR_CHILD;
4111 if (PL_op->op_flags & OPf_STACKED) {
4112 SV *really = *++MARK;
4113 value = (I32)do_aexec(really, MARK, SP);
4115 else if (SP - MARK != 1)
4117 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4121 (void ) do_aspawn(Nullsv, MARK, SP);
4125 value = (I32)do_aexec(Nullsv, MARK, SP);
4130 (void)SvPV_nolen(*SP); /* stringify for taint check */
4132 TAINT_PROPER("exec");
4135 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4138 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4141 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4154 dSP; dMARK; dTARGET;
4156 value = (I32)apply(PL_op->op_type, MARK, SP);
4161 DIE(aTHX_ PL_no_func, "kill");
4169 XPUSHi( getppid() );
4172 DIE(aTHX_ PL_no_func, "getppid");
4188 pgrp = (I32)BSD_GETPGRP(pid);
4190 if (pid != 0 && pid != PerlProc_getpid())
4191 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4197 DIE(aTHX_ PL_no_func, "getpgrp()");
4216 TAINT_PROPER("setpgrp");
4218 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4220 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4221 || (pid != 0 && pid != PerlProc_getpid()))
4223 DIE(aTHX_ "setpgrp can't take arguments");
4225 SETi( setpgrp() >= 0 );
4226 #endif /* USE_BSDPGRP */
4229 DIE(aTHX_ PL_no_func, "setpgrp()");
4235 #ifdef HAS_GETPRIORITY
4239 SETi( getpriority(which, who) );
4242 DIE(aTHX_ PL_no_func, "getpriority()");
4248 #ifdef HAS_SETPRIORITY
4253 TAINT_PROPER("setpriority");
4254 SETi( setpriority(which, who, niceval) >= 0 );
4257 DIE(aTHX_ PL_no_func, "setpriority()");
4267 XPUSHn( time(Null(Time_t*)) );
4269 XPUSHi( time(Null(Time_t*)) );
4274 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4275 to HZ. Probably. For now, assume that if the system
4276 defines HZ, it does so correctly. (Will this break
4278 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4279 it's supported. --AD 9/96.
4296 (void)PerlProc_times(&PL_timesbuf);
4298 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4299 /* struct tms, though same data */
4303 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4304 if (GIMME == G_ARRAY) {
4305 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4306 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4307 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4311 DIE(aTHX_ "times not implemented");
4312 #endif /* HAS_TIMES */
4325 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4326 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4327 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4333 when = (Time_t)SvNVx(POPs);
4335 when = (Time_t)SvIVx(POPs);
4338 if (PL_op->op_type == OP_LOCALTIME)
4339 tmbuf = localtime(&when);
4341 tmbuf = gmtime(&when);
4343 if (GIMME != G_ARRAY) {
4349 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4350 dayname[tmbuf->tm_wday],
4351 monname[tmbuf->tm_mon],
4356 tmbuf->tm_year + 1900);
4357 PUSHs(sv_2mortal(tsv));
4362 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4363 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4364 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4365 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4366 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4367 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4368 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4369 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4370 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4381 anum = alarm((unsigned int)anum);
4388 DIE(aTHX_ PL_no_func, "alarm");
4399 (void)time(&lasttime);
4404 PerlProc_sleep((unsigned int)duration);
4407 XPUSHi(when - lasttime);
4411 /* Shared memory. */
4425 return pp_shmwrite();
4430 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4431 dSP; dMARK; dTARGET;
4432 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4441 /* Message passing. */
4455 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4456 dSP; dMARK; dTARGET;
4457 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4468 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4469 dSP; dMARK; dTARGET;
4470 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4483 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4484 dSP; dMARK; dTARGET;
4485 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4492 DIE(aTHX_ "System V IPC is not implemented on this machine");
4498 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4499 dSP; dMARK; dTARGET;
4500 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4508 PUSHp(zero_but_true, ZBTLEN);
4518 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4519 dSP; dMARK; dTARGET;
4520 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4529 /* Get system info. */
4533 #ifdef HAS_GETHOSTBYNAME
4534 return pp_ghostent();
4536 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4542 #ifdef HAS_GETHOSTBYADDR
4543 return pp_ghostent();
4545 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4551 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4553 I32 which = PL_op->op_type;
4554 register char **elem;
4556 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4557 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4558 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
4559 struct hostent *PerlSock_gethostent(void);
4561 struct hostent *hent;
4566 if (which == OP_GHBYNAME)
4567 #ifdef HAS_GETHOSTBYNAME
4568 hent = PerlSock_gethostbyname(POPpbytex);
4570 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4572 else if (which == OP_GHBYADDR) {
4573 #ifdef HAS_GETHOSTBYADDR
4574 int addrtype = POPi;
4577 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4579 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4581 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4585 #ifdef HAS_GETHOSTENT
4586 hent = PerlSock_gethostent();
4588 DIE(aTHX_ PL_no_sock_func, "gethostent");
4591 #ifdef HOST_NOT_FOUND
4593 STATUS_NATIVE_SET(h_errno);
4596 if (GIMME != G_ARRAY) {
4597 PUSHs(sv = sv_newmortal());
4599 if (which == OP_GHBYNAME) {
4601 sv_setpvn(sv, hent->h_addr, hent->h_length);
4604 sv_setpv(sv, (char*)hent->h_name);
4610 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4611 sv_setpv(sv, (char*)hent->h_name);
4612 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4613 for (elem = hent->h_aliases; elem && *elem; elem++) {
4614 sv_catpv(sv, *elem);
4616 sv_catpvn(sv, " ", 1);
4618 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4619 sv_setiv(sv, (IV)hent->h_addrtype);
4620 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4621 len = hent->h_length;
4622 sv_setiv(sv, (IV)len);
4624 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4625 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4626 sv_setpvn(sv, *elem, len);
4629 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4631 sv_setpvn(sv, hent->h_addr, len);
4636 DIE(aTHX_ PL_no_sock_func, "gethostent");
4642 #ifdef HAS_GETNETBYNAME
4643 return pp_gnetent();
4645 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4651 #ifdef HAS_GETNETBYADDR
4652 return pp_gnetent();
4654 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4660 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4662 I32 which = PL_op->op_type;
4663 register char **elem;
4665 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4666 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4667 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4668 struct netent *PerlSock_getnetent(void);
4670 struct netent *nent;
4673 if (which == OP_GNBYNAME)
4674 #ifdef HAS_GETNETBYNAME
4675 nent = PerlSock_getnetbyname(POPpbytex);
4677 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4679 else if (which == OP_GNBYADDR) {
4680 #ifdef HAS_GETNETBYADDR
4681 int addrtype = POPi;
4682 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4683 nent = PerlSock_getnetbyaddr(addr, addrtype);
4685 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4689 #ifdef HAS_GETNETENT
4690 nent = PerlSock_getnetent();
4692 DIE(aTHX_ PL_no_sock_func, "getnetent");
4696 if (GIMME != G_ARRAY) {
4697 PUSHs(sv = sv_newmortal());
4699 if (which == OP_GNBYNAME)
4700 sv_setiv(sv, (IV)nent->n_net);
4702 sv_setpv(sv, nent->n_name);
4708 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4709 sv_setpv(sv, nent->n_name);
4710 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4711 for (elem = nent->n_aliases; elem && *elem; elem++) {
4712 sv_catpv(sv, *elem);
4714 sv_catpvn(sv, " ", 1);
4716 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4717 sv_setiv(sv, (IV)nent->n_addrtype);
4718 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4719 sv_setiv(sv, (IV)nent->n_net);
4724 DIE(aTHX_ PL_no_sock_func, "getnetent");
4730 #ifdef HAS_GETPROTOBYNAME
4731 return pp_gprotoent();
4733 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4739 #ifdef HAS_GETPROTOBYNUMBER
4740 return pp_gprotoent();
4742 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4748 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4750 I32 which = PL_op->op_type;
4751 register char **elem;
4753 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4754 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4755 struct protoent *PerlSock_getprotobynumber(int);
4756 struct protoent *PerlSock_getprotoent(void);
4758 struct protoent *pent;
4761 if (which == OP_GPBYNAME)
4762 #ifdef HAS_GETPROTOBYNAME
4763 pent = PerlSock_getprotobyname(POPpbytex);
4765 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4767 else if (which == OP_GPBYNUMBER)
4768 #ifdef HAS_GETPROTOBYNUMBER
4769 pent = PerlSock_getprotobynumber(POPi);
4771 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4774 #ifdef HAS_GETPROTOENT
4775 pent = PerlSock_getprotoent();
4777 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4781 if (GIMME != G_ARRAY) {
4782 PUSHs(sv = sv_newmortal());
4784 if (which == OP_GPBYNAME)
4785 sv_setiv(sv, (IV)pent->p_proto);
4787 sv_setpv(sv, pent->p_name);
4793 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4794 sv_setpv(sv, pent->p_name);
4795 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4796 for (elem = pent->p_aliases; elem && *elem; elem++) {
4797 sv_catpv(sv, *elem);
4799 sv_catpvn(sv, " ", 1);
4801 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4802 sv_setiv(sv, (IV)pent->p_proto);
4807 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4813 #ifdef HAS_GETSERVBYNAME
4814 return pp_gservent();
4816 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4822 #ifdef HAS_GETSERVBYPORT
4823 return pp_gservent();
4825 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4831 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4833 I32 which = PL_op->op_type;
4834 register char **elem;
4836 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4837 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4838 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4839 struct servent *PerlSock_getservent(void);
4841 struct servent *sent;
4844 if (which == OP_GSBYNAME) {
4845 #ifdef HAS_GETSERVBYNAME
4846 char *proto = POPpbytex;
4847 char *name = POPpbytex;
4849 if (proto && !*proto)
4852 sent = PerlSock_getservbyname(name, proto);
4854 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4857 else if (which == OP_GSBYPORT) {
4858 #ifdef HAS_GETSERVBYPORT
4859 char *proto = POPpbytex;
4860 unsigned short port = POPu;
4863 port = PerlSock_htons(port);
4865 sent = PerlSock_getservbyport(port, proto);
4867 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4871 #ifdef HAS_GETSERVENT
4872 sent = PerlSock_getservent();
4874 DIE(aTHX_ PL_no_sock_func, "getservent");
4878 if (GIMME != G_ARRAY) {
4879 PUSHs(sv = sv_newmortal());
4881 if (which == OP_GSBYNAME) {
4883 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4885 sv_setiv(sv, (IV)(sent->s_port));
4889 sv_setpv(sv, sent->s_name);
4895 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4896 sv_setpv(sv, sent->s_name);
4897 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4898 for (elem = sent->s_aliases; elem && *elem; elem++) {
4899 sv_catpv(sv, *elem);
4901 sv_catpvn(sv, " ", 1);
4903 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4905 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4907 sv_setiv(sv, (IV)(sent->s_port));
4909 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4910 sv_setpv(sv, sent->s_proto);
4915 DIE(aTHX_ PL_no_sock_func, "getservent");
4921 #ifdef HAS_SETHOSTENT
4923 PerlSock_sethostent(TOPi);
4926 DIE(aTHX_ PL_no_sock_func, "sethostent");
4932 #ifdef HAS_SETNETENT
4934 PerlSock_setnetent(TOPi);
4937 DIE(aTHX_ PL_no_sock_func, "setnetent");
4943 #ifdef HAS_SETPROTOENT
4945 PerlSock_setprotoent(TOPi);
4948 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4954 #ifdef HAS_SETSERVENT
4956 PerlSock_setservent(TOPi);
4959 DIE(aTHX_ PL_no_sock_func, "setservent");
4965 #ifdef HAS_ENDHOSTENT
4967 PerlSock_endhostent();
4971 DIE(aTHX_ PL_no_sock_func, "endhostent");
4977 #ifdef HAS_ENDNETENT
4979 PerlSock_endnetent();
4983 DIE(aTHX_ PL_no_sock_func, "endnetent");
4989 #ifdef HAS_ENDPROTOENT
4991 PerlSock_endprotoent();
4995 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5001 #ifdef HAS_ENDSERVENT
5003 PerlSock_endservent();
5007 DIE(aTHX_ PL_no_sock_func, "endservent");
5016 DIE(aTHX_ PL_no_func, "getpwnam");
5025 DIE(aTHX_ PL_no_func, "getpwuid");
5033 I32 which = PL_op->op_type;
5036 struct passwd *pwent = NULL;
5038 * We currently support only the SysV getsp* shadow password interface.
5039 * The interface is declared in <shadow.h> and often one needs to link
5040 * with -lsecurity or some such.
5041 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5044 * AIX getpwnam() is clever enough to return the encrypted password
5045 * only if the caller (euid?) is root.
5047 * There are at least two other shadow password APIs. Many platforms
5048 * seem to contain more than one interface for accessing the shadow
5049 * password databases, possibly for compatibility reasons.
5050 * The getsp*() is by far he simplest one, the other two interfaces
5051 * are much more complicated, but also very similar to each other.
5056 * struct pr_passwd *getprpw*();
5057 * The password is in
5058 * char getprpw*(...).ufld.fd_encrypt[]
5059 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5064 * struct es_passwd *getespw*();
5065 * The password is in
5066 * char *(getespw*(...).ufld.fd_encrypt)
5067 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5069 * Mention I_PROT here so that Configure probes for it.
5071 * In HP-UX for getprpw*() the manual page claims that one should include
5072 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5073 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5074 * and pp_sys.c already includes <shadow.h> if there is such.
5076 * Note that <sys/security.h> is already probed for, but currently
5077 * it is only included in special cases.
5079 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5080 * be preferred interface, even though also the getprpw*() interface
5081 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5082 * One also needs to call set_auth_parameters() in main() before
5083 * doing anything else, whether one is using getespw*() or getprpw*().
5085 * Note that accessing the shadow databases can be magnitudes
5086 * slower than accessing the standard databases.
5093 pwent = getpwnam(POPpbytex);
5096 pwent = getpwuid((Uid_t)POPi);
5099 # ifdef HAS_GETPWENT
5102 DIE(aTHX_ PL_no_func, "getpwent");
5108 if (GIMME != G_ARRAY) {
5109 PUSHs(sv = sv_newmortal());
5111 if (which == OP_GPWNAM)
5112 # if Uid_t_sign <= 0
5113 sv_setiv(sv, (IV)pwent->pw_uid);
5115 sv_setuv(sv, (UV)pwent->pw_uid);
5118 sv_setpv(sv, pwent->pw_name);
5124 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5125 sv_setpv(sv, pwent->pw_name);
5127 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5129 /* If we have getspnam(), we try to dig up the shadow
5130 * password. If we are underprivileged, the shadow
5131 * interface will set the errno to EACCES or similar,
5132 * and return a null pointer. If this happens, we will
5133 * use the dummy password (usually "*" or "x") from the
5134 * standard password database.
5136 * In theory we could skip the shadow call completely
5137 * if euid != 0 but in practice we cannot know which
5138 * security measures are guarding the shadow databases
5139 * on a random platform.
5141 * Resist the urge to use additional shadow interfaces.
5142 * Divert the urge to writing an extension instead.
5145 # ifdef HAS_GETSPNAM
5147 struct spwd *spwent;
5148 int saverrno; /* Save and restore errno so that
5149 * underprivileged attempts seem
5150 * to have never made the unsccessful
5151 * attempt to retrieve the shadow password. */
5154 spwent = getspnam(pwent->pw_name);
5156 if (spwent && spwent->sp_pwdp)
5157 sv_setpv(sv, spwent->sp_pwdp);
5161 if (!SvPOK(sv)) /* Use the standard password, then. */
5162 sv_setpv(sv, pwent->pw_passwd);
5165 # ifndef INCOMPLETE_TAINTS
5166 /* passwd is tainted because user himself can diddle with it.
5167 * admittedly not much and in a very limited way, but nevertheless. */
5171 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5172 # if Uid_t_sign <= 0
5173 sv_setiv(sv, (IV)pwent->pw_uid);
5175 sv_setuv(sv, (UV)pwent->pw_uid);
5178 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5179 # if Uid_t_sign <= 0
5180 sv_setiv(sv, (IV)pwent->pw_gid);
5182 sv_setuv(sv, (UV)pwent->pw_gid);
5184 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5185 * because of the poor interface of the Perl getpw*(),
5186 * not because there's some standard/convention saying so.
5187 * A better interface would have been to return a hash,
5188 * but we are accursed by our history, alas. --jhi. */
5189 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5191 sv_setiv(sv, (IV)pwent->pw_change);
5194 sv_setiv(sv, (IV)pwent->pw_quota);
5197 sv_setpv(sv, pwent->pw_age);
5202 /* pw_class and pw_comment are mutually exclusive--.
5203 * see the above note for pw_change, pw_quota, and pw_age. */
5204 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5206 sv_setpv(sv, pwent->pw_class);
5209 sv_setpv(sv, pwent->pw_comment);
5213 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5215 sv_setpv(sv, pwent->pw_gecos);
5217 # ifndef INCOMPLETE_TAINTS
5218 /* pw_gecos is tainted because user himself can diddle with it. */
5222 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5223 sv_setpv(sv, pwent->pw_dir);
5225 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5226 sv_setpv(sv, pwent->pw_shell);
5227 # ifndef INCOMPLETE_TAINTS
5228 /* pw_shell is tainted because user himself can diddle with it. */
5233 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5234 sv_setiv(sv, (IV)pwent->pw_expire);
5239 DIE(aTHX_ PL_no_func, "getpwent");
5245 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5250 DIE(aTHX_ PL_no_func, "setpwent");
5256 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5261 DIE(aTHX_ PL_no_func, "endpwent");
5270 DIE(aTHX_ PL_no_func, "getgrnam");
5279 DIE(aTHX_ PL_no_func, "getgrgid");
5287 I32 which = PL_op->op_type;
5288 register char **elem;
5290 struct group *grent;
5293 if (which == OP_GGRNAM)
5294 grent = (struct group *)getgrnam(POPpbytex);
5295 else if (which == OP_GGRGID)
5296 grent = (struct group *)getgrgid(POPi);
5299 grent = (struct group *)getgrent();
5301 DIE(aTHX_ PL_no_func, "getgrent");
5305 if (GIMME != G_ARRAY) {
5306 PUSHs(sv = sv_newmortal());
5308 if (which == OP_GGRNAM)
5309 sv_setiv(sv, (IV)grent->gr_gid);
5311 sv_setpv(sv, grent->gr_name);
5317 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5318 sv_setpv(sv, grent->gr_name);
5320 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5322 sv_setpv(sv, grent->gr_passwd);
5325 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5326 sv_setiv(sv, (IV)grent->gr_gid);
5328 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5329 for (elem = grent->gr_mem; elem && *elem; elem++) {
5330 sv_catpv(sv, *elem);
5332 sv_catpvn(sv, " ", 1);
5338 DIE(aTHX_ PL_no_func, "getgrent");
5344 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5349 DIE(aTHX_ PL_no_func, "setgrent");
5355 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5360 DIE(aTHX_ PL_no_func, "endgrent");
5370 if (!(tmps = PerlProc_getlogin()))
5372 PUSHp(tmps, strlen(tmps));
5375 DIE(aTHX_ PL_no_func, "getlogin");
5379 /* Miscellaneous. */
5384 dSP; dMARK; dORIGMARK; dTARGET;
5385 register I32 items = SP - MARK;
5386 unsigned long a[20];
5392 while (++MARK <= SP) {
5393 if (SvTAINTED(*MARK)) {
5399 TAINT_PROPER("syscall");
5402 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5403 * or where sizeof(long) != sizeof(char*). But such machines will
5404 * not likely have syscall implemented either, so who cares?
5406 while (++MARK <= SP) {
5407 if (SvNIOK(*MARK) || !i)
5408 a[i++] = SvIV(*MARK);
5409 else if (*MARK == &PL_sv_undef)
5412 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5418 DIE(aTHX_ "Too many args to syscall");
5420 DIE(aTHX_ "Too few args to syscall");
5422 retval = syscall(a[0]);
5425 retval = syscall(a[0],a[1]);
5428 retval = syscall(a[0],a[1],a[2]);
5431 retval = syscall(a[0],a[1],a[2],a[3]);
5434 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5437 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5440 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5443 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5447 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5450 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5453 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5457 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5461 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5465 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5466 a[10],a[11],a[12],a[13]);
5468 #endif /* atarist */
5474 DIE(aTHX_ PL_no_func, "syscall");
5478 #ifdef FCNTL_EMULATE_FLOCK
5480 /* XXX Emulate flock() with fcntl().
5481 What's really needed is a good file locking module.
5485 fcntl_emulate_flock(int fd, int operation)
5489 switch (operation & ~LOCK_NB) {
5491 flock.l_type = F_RDLCK;
5494 flock.l_type = F_WRLCK;
5497 flock.l_type = F_UNLCK;
5503 flock.l_whence = SEEK_SET;
5504 flock.l_start = flock.l_len = (Off_t)0;
5506 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5509 #endif /* FCNTL_EMULATE_FLOCK */
5511 #ifdef LOCKF_EMULATE_FLOCK
5513 /* XXX Emulate flock() with lockf(). This is just to increase
5514 portability of scripts. The calls are not completely
5515 interchangeable. What's really needed is a good file
5519 /* The lockf() constants might have been defined in <unistd.h>.
5520 Unfortunately, <unistd.h> causes troubles on some mixed
5521 (BSD/POSIX) systems, such as SunOS 4.1.3.
5523 Further, the lockf() constants aren't POSIX, so they might not be
5524 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5525 just stick in the SVID values and be done with it. Sigh.
5529 # define F_ULOCK 0 /* Unlock a previously locked region */
5532 # define F_LOCK 1 /* Lock a region for exclusive use */
5535 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5538 # define F_TEST 3 /* Test a region for other processes locks */
5542 lockf_emulate_flock(int fd, int operation)
5548 /* flock locks entire file so for lockf we need to do the same */
5550 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5551 if (pos > 0) /* is seekable and needs to be repositioned */
5552 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5553 pos = -1; /* seek failed, so don't seek back afterwards */
5556 switch (operation) {
5558 /* LOCK_SH - get a shared lock */
5560 /* LOCK_EX - get an exclusive lock */
5562 i = lockf (fd, F_LOCK, 0);
5565 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5566 case LOCK_SH|LOCK_NB:
5567 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5568 case LOCK_EX|LOCK_NB:
5569 i = lockf (fd, F_TLOCK, 0);
5571 if ((errno == EAGAIN) || (errno == EACCES))
5572 errno = EWOULDBLOCK;
5575 /* LOCK_UN - unlock (non-blocking is a no-op) */
5577 case LOCK_UN|LOCK_NB:
5578 i = lockf (fd, F_ULOCK, 0);
5581 /* Default - can't decipher operation */
5588 if (pos > 0) /* need to restore position of the handle */
5589 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5594 #endif /* LOCKF_EMULATE_FLOCK */