3 * Copyright (c) 1991-2002, 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);
437 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
439 if (SP - MARK != 1) {
441 do_join(TARG, &PL_sv_no, MARK, SP);
443 tmps = SvPV(tmpsv, len);
449 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
453 (void)SvUPGRADE(error, SVt_PV);
454 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
456 SvSetSV(error,tmpsv);
457 else if (sv_isobject(error)) {
458 HV *stash = SvSTASH(SvRV(error));
459 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
461 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
462 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
469 call_sv((SV*)GvCV(gv),
470 G_SCALAR|G_EVAL|G_KEEPERR);
471 sv_setsv(error,*PL_stack_sp--);
474 DIE(aTHX_ Nullformat);
477 if (SvPOK(error) && SvCUR(error))
478 sv_catpv(error, "\t...propagated");
480 tmps = SvPV(tmpsv, len);
484 tmpsv = sv_2mortal(newSVpvn("Died", 4));
486 DIE(aTHX_ "%"SVf, tmpsv);
506 DIE(aTHX_ PL_no_usym, "filehandle");
507 if ((io = GvIOp(gv)))
508 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
510 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
511 /* Method's args are same as ours ... */
512 /* ... except handle is replaced by the object */
513 *MARK-- = SvTIED_obj((SV*)io, mg);
517 call_method("OPEN", G_SCALAR);
530 tmps = SvPV(sv, len);
531 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
534 PUSHi( (I32)PL_forkprocess );
535 else if (PL_forkprocess == 0) /* we are a new child */
554 if (gv && (io = GvIO(gv))
555 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
558 XPUSHs(SvTIED_obj((SV*)io, mg));
561 call_method("CLOSE", G_SCALAR);
567 PUSHs(boolSV(do_close(gv, TRUE)));
587 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
588 DIE(aTHX_ PL_no_usym, "filehandle");
593 do_close(rgv, FALSE);
595 do_close(wgv, FALSE);
597 if (PerlProc_pipe(fd) < 0)
600 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
601 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
602 IoIFP(wstio) = IoOFP(wstio);
603 IoTYPE(rstio) = IoTYPE_RDONLY;
604 IoTYPE(wstio) = IoTYPE_WRONLY;
606 if (!IoIFP(rstio) || !IoOFP(wstio)) {
607 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
608 else PerlLIO_close(fd[0]);
609 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
610 else PerlLIO_close(fd[1]);
613 #if defined(HAS_FCNTL) && defined(F_SETFD)
614 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
615 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
622 DIE(aTHX_ PL_no_func, "pipe");
638 if (gv && (io = GvIO(gv))
639 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
642 XPUSHs(SvTIED_obj((SV*)io, 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 && (io = GvIO(gv))
707 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
710 XPUSHs(SvTIED_obj((SV*)io, mg));
715 call_method("BINMODE", G_SCALAR);
722 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
723 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
724 report_evil_fh(gv, io, PL_op->op_type);
728 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
729 (discp) ? SvPV_nolen(discp) : Nullch))
743 I32 markoff = MARK - PL_stack_base;
745 int how = PERL_MAGIC_tied;
750 switch(SvTYPE(varsv)) {
752 methname = "TIEHASH";
753 HvEITER((HV *)varsv) = Null(HE *);
756 methname = "TIEARRAY";
759 #ifdef GV_UNIQUE_CHECK
760 if (GvUNIQUE((GV*)varsv)) {
761 Perl_croak(aTHX_ "Attempt to tie unique GV");
764 methname = "TIEHANDLE";
765 how = PERL_MAGIC_tiedscalar;
766 /* For tied filehandles, we apply tiedscalar magic to the IO
767 slot of the GP rather than the GV itself. AMS 20010812 */
769 GvIOp(varsv) = newIO();
770 varsv = (SV *)GvIOp(varsv);
773 methname = "TIESCALAR";
774 how = PERL_MAGIC_tiedscalar;
778 if (sv_isobject(*MARK)) {
780 PUSHSTACKi(PERLSI_MAGIC);
786 call_method(methname, G_SCALAR);
789 /* Not clear why we don't call call_method here too.
790 * perhaps to get different error message ?
792 stash = gv_stashsv(*MARK, FALSE);
793 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
794 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
795 methname, SvPV(*MARK,n_a));
798 PUSHSTACKi(PERLSI_MAGIC);
804 call_sv((SV*)GvCV(gv), G_SCALAR);
810 if (sv_isobject(sv)) {
811 sv_unmagic(varsv, how);
812 /* Croak if a self-tie on an aggregate is attempted. */
813 if (varsv == SvRV(sv) &&
814 (SvTYPE(sv) == SVt_PVAV ||
815 SvTYPE(sv) == SVt_PVHV))
817 "Self-ties of arrays and hashes are not supported");
818 sv_magic(varsv, sv, how, Nullch, 0);
821 SP = PL_stack_base + markoff;
831 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
832 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
834 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
837 if ((mg = SvTIED_mg(sv, how))) {
838 SV *obj = SvRV(mg->mg_obj);
842 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
843 isGV(gv) && (cv = GvCV(gv))) {
845 XPUSHs(SvTIED_obj((SV*)gv, mg));
846 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
849 call_sv((SV *)cv, G_VOID);
853 else if (ckWARN(WARN_UNTIE)) {
854 if (mg && SvREFCNT(obj) > 1)
855 Perl_warner(aTHX_ WARN_UNTIE,
856 "untie attempted while %"UVuf" inner references still exist",
857 (UV)SvREFCNT(obj) - 1 ) ;
860 sv_unmagic(sv, how) ;
870 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
871 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
873 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
876 if ((mg = SvTIED_mg(sv, how))) {
877 SV *osv = SvTIED_obj(sv, mg);
878 if (osv == mg->mg_obj)
879 osv = sv_mortalcopy(osv);
897 sv = sv_mortalcopy(&PL_sv_no);
898 sv_setpv(sv, "AnyDBM_File");
899 stash = gv_stashsv(sv, FALSE);
900 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
902 require_pv("AnyDBM_File.pm");
904 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
905 DIE(aTHX_ "No dbm on this machine");
915 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
917 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
920 call_sv((SV*)GvCV(gv), G_SCALAR);
923 if (!sv_isobject(TOPs)) {
928 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
931 call_sv((SV*)GvCV(gv), G_SCALAR);
935 if (sv_isobject(TOPs)) {
936 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
937 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
959 struct timeval timebuf;
960 struct timeval *tbuf = &timebuf;
964 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
969 # if BYTEORDER & 0xf0000
970 # define ORDERBYTE (0x88888888 - BYTEORDER)
972 # define ORDERBYTE (0x4444 - BYTEORDER)
978 for (i = 1; i <= 3; i++) {
986 /* little endians can use vecs directly */
987 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
988 # if SELECT_MIN_BITS > 1
989 /* If SELECT_MIN_BITS is greater than one we most probably will want
990 * to align the sizes with SELECT_MIN_BITS/8 because for example
991 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
992 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
993 * on (sets/tests/clears bits) is 32 bits. */
994 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
996 growsize = sizeof(fd_set);
1005 masksize = NFDBITS / NBBY;
1007 masksize = sizeof(long); /* documented int, everyone seems to use long */
1009 growsize = maxlen + (masksize - (maxlen % masksize));
1010 Zero(&fd_sets[0], 4, char*);
1018 timebuf.tv_sec = (long)value;
1019 value -= (NV)timebuf.tv_sec;
1020 timebuf.tv_usec = (long)(value * 1000000.0);
1023 tbuf = Null(struct timeval*);
1025 for (i = 1; i <= 3; i++) {
1031 else if (!SvPOK(sv))
1032 SvPV_force(sv,n_a); /* force string conversion */
1035 Sv_Grow(sv, growsize);
1039 while (++j <= growsize) {
1043 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1045 New(403, fd_sets[i], growsize, char);
1046 for (offset = 0; offset < growsize; offset += masksize) {
1047 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1048 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1051 fd_sets[i] = SvPVX(sv);
1055 nfound = PerlSock_select(
1057 (Select_fd_set_t) fd_sets[1],
1058 (Select_fd_set_t) fd_sets[2],
1059 (Select_fd_set_t) fd_sets[3],
1061 for (i = 1; i <= 3; i++) {
1064 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1066 for (offset = 0; offset < growsize; offset += masksize) {
1067 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1068 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1070 Safefree(fd_sets[i]);
1077 if (GIMME == G_ARRAY && tbuf) {
1078 value = (NV)(timebuf.tv_sec) +
1079 (NV)(timebuf.tv_usec) / 1000000.0;
1080 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1081 sv_setnv(sv, value);
1085 DIE(aTHX_ "select not implemented");
1090 Perl_setdefout(pTHX_ GV *gv)
1093 (void)SvREFCNT_inc(gv);
1095 SvREFCNT_dec(PL_defoutgv);
1102 GV *newdefout, *egv;
1105 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1107 egv = GvEGV(PL_defoutgv);
1112 XPUSHs(&PL_sv_undef);
1114 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1115 if (gvp && *gvp == egv) {
1116 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1120 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1125 if (!GvIO(newdefout))
1126 gv_IOadd(newdefout);
1127 setdefout(newdefout);
1145 if (gv && (io = GvIO(gv))
1146 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1148 I32 gimme = GIMME_V;
1150 XPUSHs(SvTIED_obj((SV*)io, mg));
1153 call_method("GETC", gimme);
1156 if (gimme == G_SCALAR)
1157 SvSetMagicSV_nosteal(TARG, TOPs);
1160 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1163 sv_setpv(TARG, " ");
1164 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1165 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1166 /* Find out how many bytes the char needs */
1167 Size_t len = UTF8SKIP(SvPVX(TARG));
1170 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1171 SvCUR_set(TARG,1+len);
1181 return pp_sysread();
1185 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1187 register PERL_CONTEXT *cx;
1188 I32 gimme = GIMME_V;
1189 AV* padlist = CvPADLIST(cv);
1190 SV** svp = AvARRAY(padlist);
1196 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1198 SAVEVPTR(PL_curpad);
1199 PL_curpad = AvARRAY((AV*)svp[1]);
1201 setdefout(gv); /* locally select filehandle so $% et al work */
1234 SV *tmpsv = sv_newmortal();
1235 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1236 name = SvPV_nolen(tmpsv);
1239 DIE(aTHX_ "Undefined format \"%s\" called", name);
1240 DIE(aTHX_ "Not a format reference");
1243 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1245 IoFLAGS(io) &= ~IOf_DIDTOP;
1246 return doform(cv,gv,PL_op->op_next);
1252 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1253 register IO *io = GvIOp(gv);
1254 PerlIO *ofp = IoOFP(io);
1258 register PERL_CONTEXT *cx;
1260 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1261 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1264 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1265 PL_formtarget != PL_toptarget)
1269 if (!IoTOP_GV(io)) {
1273 if (!IoTOP_NAME(io)) {
1274 if (!IoFMT_NAME(io))
1275 IoFMT_NAME(io) = savepv(GvNAME(gv));
1276 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1277 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1278 if ((topgv && GvFORM(topgv)) ||
1279 !gv_fetchpv("top",FALSE,SVt_PVFM))
1280 IoTOP_NAME(io) = savepv(SvPVX(topname));
1282 IoTOP_NAME(io) = savepv("top");
1284 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1285 if (!topgv || !GvFORM(topgv)) {
1286 IoLINES_LEFT(io) = 100000000;
1289 IoTOP_GV(io) = topgv;
1291 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1292 I32 lines = IoLINES_LEFT(io);
1293 char *s = SvPVX(PL_formtarget);
1294 if (lines <= 0) /* Yow, header didn't even fit!!! */
1296 while (lines-- > 0) {
1297 s = strchr(s, '\n');
1303 STRLEN save = SvCUR(PL_formtarget);
1304 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1305 do_print(PL_formtarget, ofp);
1306 SvCUR_set(PL_formtarget, save);
1307 sv_chop(PL_formtarget, s);
1308 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1311 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1312 do_print(PL_formfeed, ofp);
1313 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1315 PL_formtarget = PL_toptarget;
1316 IoFLAGS(io) |= IOf_DIDTOP;
1319 DIE(aTHX_ "bad top format reference");
1324 SV *sv = sv_newmortal();
1325 gv_efullname4(sv, fgv, Nullch, FALSE);
1326 name = SvPV_nolen(sv);
1329 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1332 DIE(aTHX_ "Undefined top format called");
1336 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1337 return doform(cv,gv,PL_op);
1341 POPBLOCK(cx,PL_curpm);
1347 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1349 /* integrate with report_evil_fh()? */
1352 SV* sv = sv_newmortal();
1353 gv_efullname4(sv, gv, Nullch, FALSE);
1354 name = SvPV_nolen(sv);
1357 Perl_warner(aTHX_ WARN_IO,
1358 "Filehandle %s opened only for input", name);
1360 Perl_warner(aTHX_ WARN_IO,
1361 "Filehandle opened only for input");
1363 else if (ckWARN(WARN_CLOSED))
1364 report_evil_fh(gv, io, PL_op->op_type);
1369 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1370 if (ckWARN(WARN_IO))
1371 Perl_warner(aTHX_ WARN_IO, "page overflow");
1373 if (!do_print(PL_formtarget, fp))
1376 FmLINES(PL_formtarget) = 0;
1377 SvCUR_set(PL_formtarget, 0);
1378 *SvEND(PL_formtarget) = '\0';
1379 if (IoFLAGS(io) & IOf_FLUSH)
1380 (void)PerlIO_flush(fp);
1385 PL_formtarget = PL_bodytarget;
1387 return pop_return();
1392 dSP; dMARK; dORIGMARK;
1399 if (PL_op->op_flags & OPf_STACKED)
1404 if (gv && (io = GvIO(gv))
1405 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1407 if (MARK == ORIGMARK) {
1410 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1414 *MARK = SvTIED_obj((SV*)io, mg);
1417 call_method("PRINTF", G_SCALAR);
1420 MARK = ORIGMARK + 1;
1427 if (!(io = GvIO(gv))) {
1428 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1429 report_evil_fh(gv, io, PL_op->op_type);
1430 SETERRNO(EBADF,RMS$_IFI);
1433 else if (!(fp = IoOFP(io))) {
1434 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1435 /* integrate with report_evil_fh()? */
1439 gv_efullname4(sv, gv, Nullch, FALSE);
1440 name = SvPV_nolen(sv);
1443 Perl_warner(aTHX_ WARN_IO,
1444 "Filehandle %s opened only for input", name);
1446 Perl_warner(aTHX_ WARN_IO,
1447 "Filehandle opened only for input");
1449 else if (ckWARN(WARN_CLOSED))
1450 report_evil_fh(gv, io, PL_op->op_type);
1452 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1456 do_sprintf(sv, SP - MARK, MARK + 1);
1457 if (!do_print(sv, fp))
1460 if (IoFLAGS(io) & IOf_FLUSH)
1461 if (PerlIO_flush(fp) == EOF)
1472 PUSHs(&PL_sv_undef);
1493 /* Need TIEHANDLE method ? */
1495 tmps = SvPV(sv, len);
1496 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1497 IoLINES(GvIOp(gv)) = 0;
1501 PUSHs(&PL_sv_undef);
1508 dSP; dMARK; dORIGMARK; dTARGET;
1515 Sock_size_t bufsize;
1522 bool charstart = FALSE;
1523 STRLEN charskip = 0;
1527 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1528 && gv && (io = GvIO(gv))
1529 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1534 *MARK = SvTIED_obj((SV*)io, mg);
1536 call_method("READ", G_SCALAR);
1549 sv_setpvn(bufsv, "", 0);
1550 length = SvIVx(*++MARK);
1553 offset = SvIVx(*++MARK);
1557 if (!io || !IoIFP(io))
1559 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1560 buffer = SvPVutf8_force(bufsv, blen);
1561 /* UTF8 may not have been set if they are all low bytes */
1565 buffer = SvPV_force(bufsv, blen);
1568 DIE(aTHX_ "Negative length");
1576 if (PL_op->op_type == OP_RECV) {
1577 char namebuf[MAXPATHLEN];
1578 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1579 bufsize = sizeof (struct sockaddr_in);
1581 bufsize = sizeof namebuf;
1583 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1587 buffer = SvGROW(bufsv, length+1);
1588 /* 'offset' means 'flags' here */
1589 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1590 (struct sockaddr *)namebuf, &bufsize);
1594 /* Bogus return without padding */
1595 bufsize = sizeof (struct sockaddr_in);
1597 SvCUR_set(bufsv, count);
1598 *SvEND(bufsv) = '\0';
1599 (void)SvPOK_only(bufsv);
1603 /* This should not be marked tainted if the fp is marked clean */
1604 if (!(IoFLAGS(io) & IOf_UNTAINT))
1605 SvTAINTED_on(bufsv);
1607 sv_setpvn(TARG, namebuf, bufsize);
1612 if (PL_op->op_type == OP_RECV)
1613 DIE(aTHX_ PL_no_sock_func, "recv");
1615 if (DO_UTF8(bufsv)) {
1616 /* offset adjust in characters not bytes */
1617 blen = sv_len_utf8(bufsv);
1621 DIE(aTHX_ "Offset outside string");
1624 if (DO_UTF8(bufsv)) {
1625 /* convert offset-as-chars to offset-as-bytes */
1626 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1629 bufsize = SvCUR(bufsv);
1630 buffer = SvGROW(bufsv, length+offset+1);
1631 if (offset > bufsize) { /* Zero any newly allocated space */
1632 Zero(buffer+bufsize, offset-bufsize, char);
1634 buffer = buffer + offset;
1636 if (PL_op->op_type == OP_SYSREAD) {
1637 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1638 if (IoTYPE(io) == IoTYPE_SOCKET) {
1639 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1645 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1650 #ifdef HAS_SOCKET__bad_code_maybe
1651 if (IoTYPE(io) == IoTYPE_SOCKET) {
1652 char namebuf[MAXPATHLEN];
1653 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1654 bufsize = sizeof (struct sockaddr_in);
1656 bufsize = sizeof namebuf;
1658 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1659 (struct sockaddr *)namebuf, &bufsize);
1664 count = PerlIO_read(IoIFP(io), buffer, length);
1665 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1666 if (count == 0 && PerlIO_error(IoIFP(io)))
1670 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1672 /* integrate with report_evil_fh()? */
1675 SV* sv = sv_newmortal();
1676 gv_efullname4(sv, gv, Nullch, FALSE);
1677 name = SvPV_nolen(sv);
1680 Perl_warner(aTHX_ WARN_IO,
1681 "Filehandle %s opened only for output", name);
1683 Perl_warner(aTHX_ WARN_IO,
1684 "Filehandle opened only for output");
1688 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1689 *SvEND(bufsv) = '\0';
1690 (void)SvPOK_only(bufsv);
1691 if (fp_utf8 && !IN_BYTES) {
1692 /* Look at utf8 we got back and count the characters */
1693 char *bend = buffer + count;
1694 while (buffer < bend) {
1696 skip = UTF8SKIP(buffer);
1699 if (buffer - charskip + skip > bend) {
1700 /* partial character - try for rest of it */
1701 length = skip - (bend-buffer);
1702 offset = bend - SvPVX(bufsv);
1714 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1715 provided amount read (count) was what was requested (length)
1717 if (got < wanted && count == length) {
1718 length = wanted - got;
1719 offset = bend - SvPVX(bufsv);
1722 /* return value is character count */
1727 /* This should not be marked tainted if the fp is marked clean */
1728 if (!(IoFLAGS(io) & IOf_UNTAINT))
1729 SvTAINTED_on(bufsv);
1742 int items = (SP - PL_stack_base) - TOPMARK;
1746 sv = sv_2mortal(newSViv(sv_len(*SP)));
1755 dSP; dMARK; dORIGMARK; dTARGET;
1766 if (PL_op->op_type == OP_SYSWRITE
1767 && gv && (io = GvIO(gv))
1768 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1773 *MARK = SvTIED_obj((SV*)io, mg);
1775 call_method("WRITE", G_SCALAR);
1786 #if Size_t_size > IVSIZE
1787 length = (Size_t)SvNVx(*++MARK);
1789 length = (Size_t)SvIVx(*++MARK);
1791 if ((SSize_t)length < 0)
1792 DIE(aTHX_ "Negative length");
1795 if (!io || !IoIFP(io)) {
1797 if (ckWARN(WARN_CLOSED))
1798 report_evil_fh(gv, io, PL_op->op_type);
1802 if (PerlIO_isutf8(IoIFP(io))) {
1803 buffer = SvPVutf8(bufsv, blen);
1807 sv_utf8_downgrade(bufsv, FALSE);
1808 buffer = SvPV(bufsv, blen);
1811 if (PL_op->op_type == OP_SYSWRITE) {
1813 if (DO_UTF8(bufsv)) {
1814 /* length and offset are in chars */
1815 blen = sv_len_utf8(bufsv);
1818 offset = SvIVx(*++MARK);
1821 DIE(aTHX_ "Offset outside string");
1823 } else if (offset >= blen && blen > 0)
1824 DIE(aTHX_ "Offset outside string");
1827 if (length > blen - offset)
1828 length = blen - offset;
1829 if (DO_UTF8(bufsv)) {
1830 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1831 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1834 buffer = buffer+offset;
1836 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1837 if (IoTYPE(io) == IoTYPE_SOCKET) {
1838 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1844 /* See the note at doio.c:do_print about filesize limits. --jhi */
1845 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1850 else if (SP > MARK) {
1853 sockbuf = SvPVx(*++MARK, mlen);
1854 /* length is really flags */
1855 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1856 length, (struct sockaddr *)sockbuf, mlen);
1859 /* length is really flags */
1860 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1863 DIE(aTHX_ PL_no_sock_func, "send");
1869 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1870 #if Size_t_size > IVSIZE
1884 return pp_sysread();
1895 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1897 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1899 if (io && !IoIFP(io)) {
1900 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1902 IoFLAGS(io) &= ~IOf_START;
1903 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1904 sv_setpvn(GvSV(gv), "-", 1);
1905 SvSETMAGIC(GvSV(gv));
1907 else if (!nextargv(gv))
1912 gv = PL_last_in_gv; /* eof */
1915 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1917 if (gv && (io = GvIO(gv))
1918 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1921 XPUSHs(SvTIED_obj((SV*)io, mg));
1924 call_method("EOF", G_SCALAR);
1930 PUSHs(boolSV(!gv || do_eof(gv)));
1944 gv = PL_last_in_gv = (GV*)POPs;
1946 if (gv && (io = GvIO(gv))
1947 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1950 XPUSHs(SvTIED_obj((SV*)io, mg));
1953 call_method("TELL", G_SCALAR);
1959 #if LSEEKSIZE > IVSIZE
1960 PUSHn( do_tell(gv) );
1962 PUSHi( do_tell(gv) );
1969 return pp_sysseek();
1978 #if LSEEKSIZE > IVSIZE
1979 Off_t offset = (Off_t)SvNVx(POPs);
1981 Off_t offset = (Off_t)SvIVx(POPs);
1985 gv = PL_last_in_gv = (GV*)POPs;
1987 if (gv && (io = GvIO(gv))
1988 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1991 XPUSHs(SvTIED_obj((SV*)io, mg));
1992 #if LSEEKSIZE > IVSIZE
1993 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1995 XPUSHs(sv_2mortal(newSViv(offset)));
1997 XPUSHs(sv_2mortal(newSViv(whence)));
2000 call_method("SEEK", G_SCALAR);
2006 if (PL_op->op_type == OP_SEEK)
2007 PUSHs(boolSV(do_seek(gv, offset, whence)));
2009 Off_t sought = do_sysseek(gv, offset, whence);
2011 PUSHs(&PL_sv_undef);
2014 #if LSEEKSIZE > IVSIZE
2019 : newSVpvn(zero_but_true, ZBTLEN);
2020 PUSHs(sv_2mortal(sv));
2029 /* There seems to be no consensus on the length type of truncate()
2030 * and ftruncate(), both off_t and size_t have supporters. In
2031 * general one would think that when using large files, off_t is
2032 * at least as wide as size_t, so using an off_t should be okay. */
2033 /* XXX Configure probe for the length type of *truncate() needed XXX */
2036 #if Size_t_size > IVSIZE
2041 /* Checking for length < 0 is problematic as the type might or
2042 * might not be signed: if it is not, clever compilers will moan. */
2043 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2045 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2051 if (PL_op->op_flags & OPf_SPECIAL) {
2052 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2055 TAINT_PROPER("truncate");
2056 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2059 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2061 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2063 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2072 if (SvTYPE(sv) == SVt_PVGV) {
2073 tmpgv = (GV*)sv; /* *main::FRED for example */
2076 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2077 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2081 name = SvPV(sv, n_a);
2082 TAINT_PROPER("truncate");
2084 if (truncate(name, len) < 0)
2090 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2093 if (my_chsize(tmpfd, len) < 0)
2095 PerlLIO_close(tmpfd);
2104 SETERRNO(EBADF,RMS$_IFI);
2108 DIE(aTHX_ "truncate not implemented");
2121 unsigned int func = POPu;
2122 int optype = PL_op->op_type;
2126 IO *io = gv ? GvIOn(gv) : 0;
2128 if (!io || !argsv || !IoIFP(io)) {
2129 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2130 report_evil_fh(gv, io, PL_op->op_type);
2131 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2135 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2138 s = SvPV_force(argsv, len);
2139 need = IOCPARM_LEN(func);
2141 s = Sv_Grow(argsv, need + 1);
2142 SvCUR_set(argsv, need);
2145 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2148 retval = SvIV(argsv);
2149 s = INT2PTR(char*,retval); /* ouch */
2152 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2154 if (optype == OP_IOCTL)
2156 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2158 DIE(aTHX_ "ioctl is not implemented");
2162 #if defined(OS2) && defined(__EMX__)
2163 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2165 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2168 DIE(aTHX_ "fcntl is not implemented");
2172 if (s[SvCUR(argsv)] != 17)
2173 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2175 s[SvCUR(argsv)] = 0; /* put our null back */
2176 SvSETMAGIC(argsv); /* Assume it has changed */
2185 PUSHp(zero_but_true, ZBTLEN);
2205 if (gv && (io = GvIO(gv)))
2212 (void)PerlIO_flush(fp);
2213 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2216 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2217 report_evil_fh(gv, io, PL_op->op_type);
2219 SETERRNO(EBADF,RMS$_IFI);
2224 DIE(aTHX_ PL_no_func, "flock()");
2236 int protocol = POPi;
2242 io = gv ? GvIOn(gv) : NULL;
2245 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2246 report_evil_fh(gv, io, PL_op->op_type);
2248 do_close(gv, FALSE);
2249 SETERRNO(EBADF,LIB$_INVARG);
2254 do_close(gv, FALSE);
2256 TAINT_PROPER("socket");
2257 fd = PerlSock_socket(domain, type, protocol);
2260 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2261 IoOFP(io) = PerlIO_fdopen(fd, "w");
2262 IoTYPE(io) = IoTYPE_SOCKET;
2263 if (!IoIFP(io) || !IoOFP(io)) {
2264 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2265 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2266 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2269 #if defined(HAS_FCNTL) && defined(F_SETFD)
2270 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2274 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2279 DIE(aTHX_ PL_no_sock_func, "socket");
2285 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM))
2291 int protocol = POPi;
2298 io1 = gv1 ? GvIOn(gv1) : NULL;
2299 io2 = gv2 ? GvIOn(gv2) : NULL;
2300 if (!gv1 || !gv2 || !io1 || !io2) {
2301 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2303 report_evil_fh(gv1, io1, PL_op->op_type);
2305 report_evil_fh(gv1, io2, PL_op->op_type);
2308 do_close(gv1, FALSE);
2310 do_close(gv2, FALSE);
2315 do_close(gv1, FALSE);
2317 do_close(gv2, FALSE);
2319 TAINT_PROPER("socketpair");
2320 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2322 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2323 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2324 IoTYPE(io1) = IoTYPE_SOCKET;
2325 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2326 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2327 IoTYPE(io2) = IoTYPE_SOCKET;
2328 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2329 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2330 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2331 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2332 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2333 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2334 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2337 #if defined(HAS_FCNTL) && defined(F_SETFD)
2338 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2339 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2344 DIE(aTHX_ PL_no_sock_func, "socketpair");
2352 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2353 extern void GETPRIVMODE();
2354 extern void GETUSERMODE();
2359 register IO *io = GvIOn(gv);
2363 int mpeprivmode = 0;
2366 if (!io || !IoIFP(io))
2369 addr = SvPV(addrsv, len);
2370 TAINT_PROPER("bind");
2371 #ifdef MPE /* Deal with MPE bind() peculiarities */
2372 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2373 /* The address *MUST* stupidly be zero. */
2374 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2375 /* PRIV mode is required to bind() to ports < 1024. */
2376 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2377 ((struct sockaddr_in *)addr)->sin_port > 0) {
2378 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2383 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2384 (struct sockaddr *)addr, len) >= 0)
2387 #ifdef MPE /* Switch back to USER mode */
2398 if (ckWARN(WARN_CLOSED))
2399 report_evil_fh(gv, io, PL_op->op_type);
2400 SETERRNO(EBADF,SS$_IVCHAN);
2403 DIE(aTHX_ PL_no_sock_func, "bind");
2414 register IO *io = GvIOn(gv);
2417 if (!io || !IoIFP(io))
2420 addr = SvPV(addrsv, len);
2421 TAINT_PROPER("connect");
2422 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2428 if (ckWARN(WARN_CLOSED))
2429 report_evil_fh(gv, io, PL_op->op_type);
2430 SETERRNO(EBADF,SS$_IVCHAN);
2433 DIE(aTHX_ PL_no_sock_func, "connect");
2443 register IO *io = gv ? GvIOn(gv) : NULL;
2445 if (!gv || !io || !IoIFP(io))
2448 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2454 if (ckWARN(WARN_CLOSED))
2455 report_evil_fh(gv, io, PL_op->op_type);
2456 SETERRNO(EBADF,SS$_IVCHAN);
2459 DIE(aTHX_ PL_no_sock_func, "listen");
2471 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2472 Sock_size_t len = sizeof saddr;
2485 if (!gstio || !IoIFP(gstio))
2489 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2493 do_close(ngv, FALSE);
2494 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2495 /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
2496 fclose of IoOFP's FILE * - and hence leak memory.
2497 Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
2499 IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w");
2500 IoTYPE(nstio) = IoTYPE_SOCKET;
2501 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2502 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2503 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2504 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2507 #if defined(HAS_FCNTL) && defined(F_SETFD)
2508 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2509 fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
2513 len = sizeof saddr; /* EPOC somehow truncates info */
2514 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2517 PUSHp((char *)&saddr, len);
2521 if (ckWARN(WARN_CLOSED))
2522 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2523 SETERRNO(EBADF,SS$_IVCHAN);
2529 DIE(aTHX_ PL_no_sock_func, "accept");
2539 register IO *io = GvIOn(gv);
2541 if (!io || !IoIFP(io))
2544 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2548 if (ckWARN(WARN_CLOSED))
2549 report_evil_fh(gv, io, PL_op->op_type);
2550 SETERRNO(EBADF,SS$_IVCHAN);
2553 DIE(aTHX_ PL_no_sock_func, "shutdown");
2560 return pp_ssockopt();
2562 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2570 int optype = PL_op->op_type;
2573 unsigned int optname;
2579 if (optype == OP_GSOCKOPT)
2580 sv = sv_2mortal(NEWSV(22, 257));
2583 optname = (unsigned int) POPi;
2584 lvl = (unsigned int) POPi;
2588 if (!io || !IoIFP(io))
2591 fd = PerlIO_fileno(IoIFP(io));
2595 (void)SvPOK_only(sv);
2599 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2614 aint = (int)SvIV(sv);
2618 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2627 if (ckWARN(WARN_CLOSED))
2628 report_evil_fh(gv, io, optype);
2629 SETERRNO(EBADF,SS$_IVCHAN);
2634 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2641 return pp_getpeername();
2643 DIE(aTHX_ PL_no_sock_func, "getsockname");
2651 int optype = PL_op->op_type;
2655 register IO *io = GvIOn(gv);
2658 if (!io || !IoIFP(io))
2661 sv = sv_2mortal(NEWSV(22, 257));
2662 (void)SvPOK_only(sv);
2666 fd = PerlIO_fileno(IoIFP(io));
2668 case OP_GETSOCKNAME:
2669 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2672 case OP_GETPEERNAME:
2673 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2675 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2677 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";
2678 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2679 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2680 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2681 sizeof(u_short) + sizeof(struct in_addr))) {
2688 #ifdef BOGUS_GETNAME_RETURN
2689 /* Interactive Unix, getpeername() and getsockname()
2690 does not return valid namelen */
2691 if (len == BOGUS_GETNAME_RETURN)
2692 len = sizeof(struct sockaddr);
2700 if (ckWARN(WARN_CLOSED))
2701 report_evil_fh(gv, io, optype);
2702 SETERRNO(EBADF,SS$_IVCHAN);
2707 DIE(aTHX_ PL_no_sock_func, "getpeername");
2726 if (PL_op->op_flags & OPf_REF) {
2728 if (PL_op->op_type == OP_LSTAT) {
2729 if (gv != PL_defgv) {
2730 if (ckWARN(WARN_IO))
2731 Perl_warner(aTHX_ WARN_IO,
2732 "lstat() on filehandle %s", GvENAME(gv));
2733 } else if (PL_laststype != OP_LSTAT)
2734 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2738 if (gv != PL_defgv) {
2739 PL_laststype = OP_STAT;
2741 sv_setpv(PL_statname, "");
2742 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2743 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2745 if (PL_laststatval < 0) {
2746 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2747 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2753 if (SvTYPE(sv) == SVt_PVGV) {
2757 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2759 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2760 Perl_warner(aTHX_ WARN_IO,
2761 "lstat() on filehandle %s", GvENAME(gv));
2764 sv_setpv(PL_statname, SvPV(sv,n_a));
2767 PL_laststype = PL_op->op_type;
2768 if (PL_op->op_type == OP_LSTAT)
2769 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2772 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2773 if (PL_laststatval < 0) {
2774 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2775 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
2781 if (gimme != G_ARRAY) {
2782 if (gimme != G_VOID)
2783 XPUSHs(boolSV(max));
2789 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2790 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2791 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2792 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2793 #if Uid_t_size > IVSIZE
2794 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2796 # if Uid_t_sign <= 0
2797 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2799 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2802 #if Gid_t_size > IVSIZE
2803 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2805 # if Gid_t_sign <= 0
2806 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2808 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2811 #ifdef USE_STAT_RDEV
2812 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2814 PUSHs(sv_2mortal(newSVpvn("", 0)));
2816 #if Off_t_size > IVSIZE
2817 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2819 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2822 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2823 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2824 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2826 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2827 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2828 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2830 #ifdef USE_STAT_BLOCKS
2831 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2832 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2834 PUSHs(sv_2mortal(newSVpvn("", 0)));
2835 PUSHs(sv_2mortal(newSVpvn("", 0)));
2845 #if defined(HAS_ACCESS) && defined(R_OK)
2847 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2848 result = access(TOPpx, R_OK);
2863 if (cando(S_IRUSR, 0, &PL_statcache))
2872 #if defined(HAS_ACCESS) && defined(W_OK)
2874 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2875 result = access(TOPpx, W_OK);
2890 if (cando(S_IWUSR, 0, &PL_statcache))
2899 #if defined(HAS_ACCESS) && defined(X_OK)
2901 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2902 result = access(TOPpx, X_OK);
2917 if (cando(S_IXUSR, 0, &PL_statcache))
2926 #ifdef PERL_EFF_ACCESS_R_OK
2928 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2929 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2944 if (cando(S_IRUSR, 1, &PL_statcache))
2953 #ifdef PERL_EFF_ACCESS_W_OK
2955 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2956 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2971 if (cando(S_IWUSR, 1, &PL_statcache))
2980 #ifdef PERL_EFF_ACCESS_X_OK
2982 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2983 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2998 if (cando(S_IXUSR, 1, &PL_statcache))
3005 I32 result = my_stat();
3014 return pp_ftrowned();
3019 I32 result = my_stat();
3023 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3031 I32 result = my_stat();
3035 if (PL_statcache.st_size == 0)
3042 I32 result = my_stat();
3046 #if Off_t_size > IVSIZE
3047 PUSHn(PL_statcache.st_size);
3049 PUSHi(PL_statcache.st_size);
3056 I32 result = my_stat();
3060 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3066 I32 result = my_stat();
3070 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3076 I32 result = my_stat();
3080 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3086 I32 result = my_stat();
3090 if (S_ISSOCK(PL_statcache.st_mode))
3097 I32 result = my_stat();
3101 if (S_ISCHR(PL_statcache.st_mode))
3108 I32 result = my_stat();
3112 if (S_ISBLK(PL_statcache.st_mode))
3119 I32 result = my_stat();
3123 if (S_ISREG(PL_statcache.st_mode))
3130 I32 result = my_stat();
3134 if (S_ISDIR(PL_statcache.st_mode))
3141 I32 result = my_stat();
3145 if (S_ISFIFO(PL_statcache.st_mode))
3152 I32 result = my_lstat();
3156 if (S_ISLNK(PL_statcache.st_mode))
3165 I32 result = my_stat();
3169 if (PL_statcache.st_mode & S_ISUID)
3179 I32 result = my_stat();
3183 if (PL_statcache.st_mode & S_ISGID)
3193 I32 result = my_stat();
3197 if (PL_statcache.st_mode & S_ISVTX)
3208 char *tmps = Nullch;
3211 if (PL_op->op_flags & OPf_REF)
3213 else if (isGV(TOPs))
3215 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3216 gv = (GV*)SvRV(POPs);
3218 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3220 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3221 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3222 else if (tmps && isDIGIT(*tmps))
3226 if (PerlLIO_isatty(fd))
3231 #if defined(atarist) /* this will work with atariST. Configure will
3232 make guesses for other systems. */
3233 # define FILE_base(f) ((f)->_base)
3234 # define FILE_ptr(f) ((f)->_ptr)
3235 # define FILE_cnt(f) ((f)->_cnt)
3236 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3246 register STDCHAR *s;
3253 if (PL_op->op_flags & OPf_REF)
3255 else if (isGV(TOPs))
3257 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3258 gv = (GV*)SvRV(POPs);
3264 if (gv == PL_defgv) {
3266 io = GvIO(PL_statgv);
3269 goto really_filename;
3274 PL_laststatval = -1;
3275 sv_setpv(PL_statname, "");
3276 io = GvIO(PL_statgv);
3278 if (io && IoIFP(io)) {
3279 if (! PerlIO_has_base(IoIFP(io)))
3280 DIE(aTHX_ "-T and -B not implemented on filehandles");
3281 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3282 if (PL_laststatval < 0)
3284 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3285 if (PL_op->op_type == OP_FTTEXT)
3290 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3291 i = PerlIO_getc(IoIFP(io));
3293 (void)PerlIO_ungetc(IoIFP(io),i);
3295 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3297 len = PerlIO_get_bufsiz(IoIFP(io));
3298 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3299 /* sfio can have large buffers - limit to 512 */
3304 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3306 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3308 SETERRNO(EBADF,RMS$_IFI);
3316 PL_laststatval = -1;
3317 PL_laststype = OP_STAT;
3318 sv_setpv(PL_statname, SvPV(sv, n_a));
3319 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3320 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3321 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
3324 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3325 if (PL_laststatval < 0) {
3326 (void)PerlIO_close(fp);
3329 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3330 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3331 (void)PerlIO_close(fp);
3333 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3334 RETPUSHNO; /* special case NFS directories */
3335 RETPUSHYES; /* null file is anything */
3340 /* now scan s to look for textiness */
3341 /* XXX ASCII dependent code */
3343 #if defined(DOSISH) || defined(USEMYBINMODE)
3344 /* ignore trailing ^Z on short files */
3345 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3349 for (i = 0; i < len; i++, s++) {
3350 if (!*s) { /* null never allowed in text */
3355 else if (!(isPRINT(*s) || isSPACE(*s)))
3358 else if (*s & 128) {
3360 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3363 /* utf8 characters don't count as odd */
3364 if (UTF8_IS_START(*s)) {
3365 int ulen = UTF8SKIP(s);
3366 if (ulen < len - i) {
3368 for (j = 1; j < ulen; j++) {
3369 if (!UTF8_IS_CONTINUATION(s[j]))
3372 --ulen; /* loop does extra increment */
3382 *s != '\n' && *s != '\r' && *s != '\b' &&
3383 *s != '\t' && *s != '\f' && *s != 27)
3388 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3413 if( !tmps || !*tmps ) {
3414 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3415 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3417 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3422 deprecate("chdir('') or chdir(undef) as chdir()");
3423 tmps = SvPV(*svp, n_a);
3427 TAINT_PROPER("chdir");
3432 TAINT_PROPER("chdir");
3433 PUSHi( PerlDir_chdir(tmps) >= 0 );
3435 /* Clear the DEFAULT element of ENV so we'll get the new value
3437 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3445 dSP; dMARK; dTARGET;
3446 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3452 DIE(aTHX_ PL_no_func, "chown");
3462 TAINT_PROPER("chroot");
3463 PUSHi( chroot(tmps) >= 0 );
3466 DIE(aTHX_ PL_no_func, "chroot");
3472 dSP; dMARK; dTARGET;
3474 value = (I32)apply(PL_op->op_type, MARK, SP);
3482 dSP; dMARK; dTARGET;
3484 value = (I32)apply(PL_op->op_type, MARK, SP);
3492 dSP; dMARK; dTARGET;
3494 value = (I32)apply(PL_op->op_type, MARK, SP);
3506 char *tmps2 = POPpx;
3507 char *tmps = SvPV(TOPs, n_a);
3508 TAINT_PROPER("rename");
3510 anum = PerlLIO_rename(tmps, tmps2);
3512 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3513 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3516 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3517 (void)UNLINK(tmps2);
3518 if (!(anum = link(tmps, tmps2)))
3519 anum = UNLINK(tmps);
3532 char *tmps2 = POPpx;
3533 char *tmps = SvPV(TOPs, n_a);
3534 TAINT_PROPER("link");
3535 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3538 DIE(aTHX_ PL_no_func, "link");
3547 char *tmps2 = POPpx;
3548 char *tmps = SvPV(TOPs, n_a);
3549 TAINT_PROPER("symlink");
3550 SETi( symlink(tmps, tmps2) >= 0 );
3553 DIE(aTHX_ PL_no_func, "symlink");
3563 char buf[MAXPATHLEN];
3567 #ifndef INCOMPLETE_TAINTS
3571 len = readlink(tmps, buf, sizeof(buf) - 1);
3579 RETSETUNDEF; /* just pretend it's a normal file */
3583 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3585 S_dooneliner(pTHX_ char *cmd, char *filename)
3587 char *save_filename = filename;
3593 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3594 strcpy(cmdline, cmd);
3595 strcat(cmdline, " ");
3596 for (s = cmdline + strlen(cmdline); *filename; ) {
3601 myfp = PerlProc_popen(cmdline, "r");
3605 SV *tmpsv = sv_newmortal();
3606 /* Need to save/restore 'PL_rs' ?? */
3607 s = sv_gets(tmpsv, myfp, 0);
3608 (void)PerlProc_pclose(myfp);
3612 #ifdef HAS_SYS_ERRLIST
3617 /* you don't see this */
3619 #ifdef HAS_SYS_ERRLIST
3627 if (instr(s, errmsg)) {
3634 #define EACCES EPERM
3636 if (instr(s, "cannot make"))
3637 SETERRNO(EEXIST,RMS$_FEX);
3638 else if (instr(s, "existing file"))
3639 SETERRNO(EEXIST,RMS$_FEX);
3640 else if (instr(s, "ile exists"))
3641 SETERRNO(EEXIST,RMS$_FEX);
3642 else if (instr(s, "non-exist"))
3643 SETERRNO(ENOENT,RMS$_FNF);
3644 else if (instr(s, "does not exist"))
3645 SETERRNO(ENOENT,RMS$_FNF);
3646 else if (instr(s, "not empty"))
3647 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3648 else if (instr(s, "cannot access"))
3649 SETERRNO(EACCES,RMS$_PRV);
3651 SETERRNO(EPERM,RMS$_PRV);
3654 else { /* some mkdirs return no failure indication */
3655 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3656 if (PL_op->op_type == OP_RMDIR)
3661 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3686 tmps = SvPV(TOPs, len);
3687 /* Different operating and file systems take differently to
3688 * trailing slashes. According to POSIX 1003.1 1996 Edition
3689 * any number of trailing slashes should be allowed.
3690 * Thusly we snip them away so that even non-conforming
3691 * systems are happy. */
3692 /* We should probably do this "filtering" for all
3693 * the functions that expect (potentially) directory names:
3694 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3695 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3696 if (len > 1 && tmps[len-1] == '/') {
3697 while (tmps[len] == '/' && len > 1)
3699 tmps = savepvn(tmps, len);
3703 TAINT_PROPER("mkdir");
3705 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3707 SETi( dooneliner("mkdir", tmps) );
3708 oldumask = PerlLIO_umask(0);
3709 PerlLIO_umask(oldumask);
3710 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3724 TAINT_PROPER("rmdir");
3726 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3728 XPUSHi( dooneliner("rmdir", tmps) );
3733 /* Directory calls. */
3737 #if defined(Direntry_t) && defined(HAS_READDIR)
3740 char *dirname = POPpx;
3742 register IO *io = GvIOn(gv);
3748 PerlDir_close(IoDIRP(io));
3749 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3755 SETERRNO(EBADF,RMS$_DIR);
3758 DIE(aTHX_ PL_no_dir_func, "opendir");
3764 #if defined(Direntry_t) && defined(HAS_READDIR)
3766 #if !defined(I_DIRENT) && !defined(VMS)
3767 Direntry_t *readdir (DIR *);
3769 register Direntry_t *dp;
3771 register IO *io = GvIOn(gv);
3774 if (!io || !IoDIRP(io))
3777 if (GIMME == G_ARRAY) {
3779 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3781 sv = newSVpvn(dp->d_name, dp->d_namlen);
3783 sv = newSVpv(dp->d_name, 0);
3785 #ifndef INCOMPLETE_TAINTS
3786 if (!(IoFLAGS(io) & IOf_UNTAINT))
3789 XPUSHs(sv_2mortal(sv));
3793 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3796 sv = newSVpvn(dp->d_name, dp->d_namlen);
3798 sv = newSVpv(dp->d_name, 0);
3800 #ifndef INCOMPLETE_TAINTS
3801 if (!(IoFLAGS(io) & IOf_UNTAINT))
3804 XPUSHs(sv_2mortal(sv));
3810 SETERRNO(EBADF,RMS$_ISI);
3811 if (GIMME == G_ARRAY)
3816 DIE(aTHX_ PL_no_dir_func, "readdir");
3822 #if defined(HAS_TELLDIR) || defined(telldir)
3824 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3825 /* XXX netbsd still seemed to.
3826 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3827 --JHI 1999-Feb-02 */
3828 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3829 long telldir (DIR *);
3832 register IO *io = GvIOn(gv);
3834 if (!io || !IoDIRP(io))
3837 PUSHi( PerlDir_tell(IoDIRP(io)) );
3841 SETERRNO(EBADF,RMS$_ISI);
3844 DIE(aTHX_ PL_no_dir_func, "telldir");
3850 #if defined(HAS_SEEKDIR) || defined(seekdir)
3854 register IO *io = GvIOn(gv);
3856 if (!io || !IoDIRP(io))
3859 (void)PerlDir_seek(IoDIRP(io), along);
3864 SETERRNO(EBADF,RMS$_ISI);
3867 DIE(aTHX_ PL_no_dir_func, "seekdir");
3873 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3876 register IO *io = GvIOn(gv);
3878 if (!io || !IoDIRP(io))
3881 (void)PerlDir_rewind(IoDIRP(io));
3885 SETERRNO(EBADF,RMS$_ISI);
3888 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3894 #if defined(Direntry_t) && defined(HAS_READDIR)
3897 register IO *io = GvIOn(gv);
3899 if (!io || !IoDIRP(io))
3902 #ifdef VOID_CLOSEDIR
3903 PerlDir_close(IoDIRP(io));
3905 if (PerlDir_close(IoDIRP(io)) < 0) {
3906 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3915 SETERRNO(EBADF,RMS$_IFI);
3918 DIE(aTHX_ PL_no_dir_func, "closedir");
3922 /* Process control. */
3932 PERL_FLUSHALL_FOR_CHILD;
3933 childpid = PerlProc_fork();
3938 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3939 SvREADONLY_off(GvSV(tmpgv));
3940 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3941 SvREADONLY_on(GvSV(tmpgv));
3943 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3948 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3953 PERL_FLUSHALL_FOR_CHILD;
3954 childpid = PerlProc_fork();
3960 DIE(aTHX_ PL_no_func, "fork");
3967 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3972 #ifdef PERL_OLD_SIGNALS
3973 childpid = wait4pid(-1, &argflags, 0);
3975 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3979 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3980 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3981 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3983 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3988 DIE(aTHX_ PL_no_func, "wait");
3994 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4002 #ifdef PERL_OLD_SIGNALS
4003 childpid = wait4pid(childpid, &argflags, optype);
4005 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
4009 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4010 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4011 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4013 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4018 DIE(aTHX_ PL_no_func, "waitpid");
4024 dSP; dMARK; dORIGMARK; dTARGET;
4031 if (SP - MARK == 1) {
4033 (void)SvPV_nolen(TOPs); /* stringify for taint check */
4035 TAINT_PROPER("system");
4038 PERL_FLUSHALL_FOR_CHILD;
4039 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4043 Sigsave_t ihand,qhand; /* place to save signals during system() */
4047 if (PL_op->op_flags & OPf_STACKED)
4049 else if (SP - MARK != 1)
4051 if (cmd && *(SvPV_nolen(cmd)) != '/')
4055 if (PerlProc_pipe(pp) >= 0)
4057 while ((childpid = PerlProc_fork()) == -1) {
4058 if (errno != EAGAIN) {
4063 PerlLIO_close(pp[0]);
4064 PerlLIO_close(pp[1]);
4072 PerlLIO_close(pp[1]);
4074 rsignal_save(SIGINT, SIG_IGN, &ihand);
4075 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4078 result = wait4pid(childpid, &status, 0);
4079 } while (result == -1 && errno == EINTR);
4081 (void)rsignal_restore(SIGINT, &ihand);
4082 (void)rsignal_restore(SIGQUIT, &qhand);
4084 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4085 do_execfree(); /* free any memory child malloced on fork */
4091 while (n < sizeof(int)) {
4092 n1 = PerlLIO_read(pp[0],
4093 (void*)(((char*)&errkid)+n),
4099 PerlLIO_close(pp[0]);
4100 if (n) { /* Error */
4101 if (n != sizeof(int))
4102 DIE(aTHX_ "panic: kid popen errno read");
4103 errno = errkid; /* Propagate errno from kid */
4104 STATUS_CURRENT = -1;
4107 PUSHi(STATUS_CURRENT);
4111 PerlLIO_close(pp[0]);
4112 #if defined(HAS_FCNTL) && defined(F_SETFD)
4113 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4117 if (PL_op->op_flags & OPf_STACKED) {
4118 SV *really = *++MARK;
4119 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4121 else if (SP - MARK != 1)
4122 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4124 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4127 #else /* ! FORK or VMS or OS/2 */
4130 if (PL_op->op_flags & OPf_STACKED) {
4131 SV *really = *++MARK;
4132 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4134 else if (SP - MARK != 1)
4135 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4137 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4139 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4141 STATUS_NATIVE_SET(value);
4144 PUSHi(result ? value : STATUS_CURRENT);
4145 #endif /* !FORK or VMS */
4151 dSP; dMARK; dORIGMARK; dTARGET;
4155 PERL_FLUSHALL_FOR_CHILD;
4156 if (PL_op->op_flags & OPf_STACKED) {
4157 SV *really = *++MARK;
4158 value = (I32)do_aexec(really, MARK, SP);
4160 else if (SP - MARK != 1)
4162 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4166 (void ) do_aspawn(Nullsv, MARK, SP);
4170 value = (I32)do_aexec(Nullsv, MARK, SP);
4175 (void)SvPV_nolen(*SP); /* stringify for taint check */
4177 TAINT_PROPER("exec");
4180 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4183 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4186 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4199 dSP; dMARK; dTARGET;
4201 value = (I32)apply(PL_op->op_type, MARK, SP);
4206 DIE(aTHX_ PL_no_func, "kill");
4214 XPUSHi( getppid() );
4217 DIE(aTHX_ PL_no_func, "getppid");
4233 pgrp = (I32)BSD_GETPGRP(pid);
4235 if (pid != 0 && pid != PerlProc_getpid())
4236 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4242 DIE(aTHX_ PL_no_func, "getpgrp()");
4261 TAINT_PROPER("setpgrp");
4263 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4265 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4266 || (pid != 0 && pid != PerlProc_getpid()))
4268 DIE(aTHX_ "setpgrp can't take arguments");
4270 SETi( setpgrp() >= 0 );
4271 #endif /* USE_BSDPGRP */
4274 DIE(aTHX_ PL_no_func, "setpgrp()");
4280 #ifdef HAS_GETPRIORITY
4284 SETi( getpriority(which, who) );
4287 DIE(aTHX_ PL_no_func, "getpriority()");
4293 #ifdef HAS_SETPRIORITY
4298 TAINT_PROPER("setpriority");
4299 SETi( setpriority(which, who, niceval) >= 0 );
4302 DIE(aTHX_ PL_no_func, "setpriority()");
4312 XPUSHn( time(Null(Time_t*)) );
4314 XPUSHi( time(Null(Time_t*)) );
4319 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4320 to HZ. Probably. For now, assume that if the system
4321 defines HZ, it does so correctly. (Will this break
4323 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4324 it's supported. --AD 9/96.
4345 (void)PerlProc_times(&PL_timesbuf);
4347 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4348 /* struct tms, though same data */
4352 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4353 if (GIMME == G_ARRAY) {
4354 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4355 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4356 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4360 DIE(aTHX_ "times not implemented");
4361 #endif /* HAS_TIMES */
4374 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4375 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4376 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4382 when = (Time_t)SvNVx(POPs);
4384 when = (Time_t)SvIVx(POPs);
4387 if (PL_op->op_type == OP_LOCALTIME)
4388 tmbuf = localtime(&when);
4390 tmbuf = gmtime(&when);
4392 if (GIMME != G_ARRAY) {
4398 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4399 dayname[tmbuf->tm_wday],
4400 monname[tmbuf->tm_mon],
4405 tmbuf->tm_year + 1900);
4406 PUSHs(sv_2mortal(tsv));
4411 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4412 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4413 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4414 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4415 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4416 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4417 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4418 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4419 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4430 anum = alarm((unsigned int)anum);
4437 DIE(aTHX_ PL_no_func, "alarm");
4448 (void)time(&lasttime);
4453 PerlProc_sleep((unsigned int)duration);
4456 XPUSHi(when - lasttime);
4460 /* Shared memory. */
4474 return pp_shmwrite();
4479 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4480 dSP; dMARK; dTARGET;
4481 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4490 /* Message passing. */
4504 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4505 dSP; dMARK; dTARGET;
4506 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4517 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4518 dSP; dMARK; dTARGET;
4519 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4532 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4533 dSP; dMARK; dTARGET;
4534 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4541 DIE(aTHX_ "System V IPC is not implemented on this machine");
4547 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4548 dSP; dMARK; dTARGET;
4549 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4557 PUSHp(zero_but_true, ZBTLEN);
4567 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4568 dSP; dMARK; dTARGET;
4569 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4578 /* Get system info. */
4582 #ifdef HAS_GETHOSTBYNAME
4583 return pp_ghostent();
4585 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4591 #ifdef HAS_GETHOSTBYADDR
4592 return pp_ghostent();
4594 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4600 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4602 I32 which = PL_op->op_type;
4603 register char **elem;
4605 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4606 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4607 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
4608 struct hostent *PerlSock_gethostent(void);
4610 struct hostent *hent;
4615 if (which == OP_GHBYNAME)
4616 #ifdef HAS_GETHOSTBYNAME
4617 hent = PerlSock_gethostbyname(POPpbytex);
4619 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4621 else if (which == OP_GHBYADDR) {
4622 #ifdef HAS_GETHOSTBYADDR
4623 int addrtype = POPi;
4626 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4628 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4630 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4634 #ifdef HAS_GETHOSTENT
4635 hent = PerlSock_gethostent();
4637 DIE(aTHX_ PL_no_sock_func, "gethostent");
4640 #ifdef HOST_NOT_FOUND
4642 STATUS_NATIVE_SET(h_errno);
4645 if (GIMME != G_ARRAY) {
4646 PUSHs(sv = sv_newmortal());
4648 if (which == OP_GHBYNAME) {
4650 sv_setpvn(sv, hent->h_addr, hent->h_length);
4653 sv_setpv(sv, (char*)hent->h_name);
4659 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4660 sv_setpv(sv, (char*)hent->h_name);
4661 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4662 for (elem = hent->h_aliases; elem && *elem; elem++) {
4663 sv_catpv(sv, *elem);
4665 sv_catpvn(sv, " ", 1);
4667 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4668 sv_setiv(sv, (IV)hent->h_addrtype);
4669 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4670 len = hent->h_length;
4671 sv_setiv(sv, (IV)len);
4673 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4674 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4675 sv_setpvn(sv, *elem, len);
4678 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4680 sv_setpvn(sv, hent->h_addr, len);
4685 DIE(aTHX_ PL_no_sock_func, "gethostent");
4691 #ifdef HAS_GETNETBYNAME
4692 return pp_gnetent();
4694 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4700 #ifdef HAS_GETNETBYADDR
4701 return pp_gnetent();
4703 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4709 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4711 I32 which = PL_op->op_type;
4712 register char **elem;
4714 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4715 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4716 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4717 struct netent *PerlSock_getnetent(void);
4719 struct netent *nent;
4722 if (which == OP_GNBYNAME)
4723 #ifdef HAS_GETNETBYNAME
4724 nent = PerlSock_getnetbyname(POPpbytex);
4726 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4728 else if (which == OP_GNBYADDR) {
4729 #ifdef HAS_GETNETBYADDR
4730 int addrtype = POPi;
4731 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4732 nent = PerlSock_getnetbyaddr(addr, addrtype);
4734 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4738 #ifdef HAS_GETNETENT
4739 nent = PerlSock_getnetent();
4741 DIE(aTHX_ PL_no_sock_func, "getnetent");
4745 if (GIMME != G_ARRAY) {
4746 PUSHs(sv = sv_newmortal());
4748 if (which == OP_GNBYNAME)
4749 sv_setiv(sv, (IV)nent->n_net);
4751 sv_setpv(sv, nent->n_name);
4757 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4758 sv_setpv(sv, nent->n_name);
4759 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4760 for (elem = nent->n_aliases; elem && *elem; elem++) {
4761 sv_catpv(sv, *elem);
4763 sv_catpvn(sv, " ", 1);
4765 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4766 sv_setiv(sv, (IV)nent->n_addrtype);
4767 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4768 sv_setiv(sv, (IV)nent->n_net);
4773 DIE(aTHX_ PL_no_sock_func, "getnetent");
4779 #ifdef HAS_GETPROTOBYNAME
4780 return pp_gprotoent();
4782 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4788 #ifdef HAS_GETPROTOBYNUMBER
4789 return pp_gprotoent();
4791 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4797 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4799 I32 which = PL_op->op_type;
4800 register char **elem;
4802 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4803 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4804 struct protoent *PerlSock_getprotobynumber(int);
4805 struct protoent *PerlSock_getprotoent(void);
4807 struct protoent *pent;
4810 if (which == OP_GPBYNAME)
4811 #ifdef HAS_GETPROTOBYNAME
4812 pent = PerlSock_getprotobyname(POPpbytex);
4814 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4816 else if (which == OP_GPBYNUMBER)
4817 #ifdef HAS_GETPROTOBYNUMBER
4818 pent = PerlSock_getprotobynumber(POPi);
4820 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4823 #ifdef HAS_GETPROTOENT
4824 pent = PerlSock_getprotoent();
4826 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4830 if (GIMME != G_ARRAY) {
4831 PUSHs(sv = sv_newmortal());
4833 if (which == OP_GPBYNAME)
4834 sv_setiv(sv, (IV)pent->p_proto);
4836 sv_setpv(sv, pent->p_name);
4842 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4843 sv_setpv(sv, pent->p_name);
4844 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4845 for (elem = pent->p_aliases; elem && *elem; elem++) {
4846 sv_catpv(sv, *elem);
4848 sv_catpvn(sv, " ", 1);
4850 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4851 sv_setiv(sv, (IV)pent->p_proto);
4856 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4862 #ifdef HAS_GETSERVBYNAME
4863 return pp_gservent();
4865 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4871 #ifdef HAS_GETSERVBYPORT
4872 return pp_gservent();
4874 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4880 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4882 I32 which = PL_op->op_type;
4883 register char **elem;
4885 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4886 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4887 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4888 struct servent *PerlSock_getservent(void);
4890 struct servent *sent;
4893 if (which == OP_GSBYNAME) {
4894 #ifdef HAS_GETSERVBYNAME
4895 char *proto = POPpbytex;
4896 char *name = POPpbytex;
4898 if (proto && !*proto)
4901 sent = PerlSock_getservbyname(name, proto);
4903 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4906 else if (which == OP_GSBYPORT) {
4907 #ifdef HAS_GETSERVBYPORT
4908 char *proto = POPpbytex;
4909 unsigned short port = POPu;
4912 port = PerlSock_htons(port);
4914 sent = PerlSock_getservbyport(port, proto);
4916 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4920 #ifdef HAS_GETSERVENT
4921 sent = PerlSock_getservent();
4923 DIE(aTHX_ PL_no_sock_func, "getservent");
4927 if (GIMME != G_ARRAY) {
4928 PUSHs(sv = sv_newmortal());
4930 if (which == OP_GSBYNAME) {
4932 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4934 sv_setiv(sv, (IV)(sent->s_port));
4938 sv_setpv(sv, sent->s_name);
4944 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4945 sv_setpv(sv, sent->s_name);
4946 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4947 for (elem = sent->s_aliases; elem && *elem; elem++) {
4948 sv_catpv(sv, *elem);
4950 sv_catpvn(sv, " ", 1);
4952 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4954 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4956 sv_setiv(sv, (IV)(sent->s_port));
4958 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4959 sv_setpv(sv, sent->s_proto);
4964 DIE(aTHX_ PL_no_sock_func, "getservent");
4970 #ifdef HAS_SETHOSTENT
4972 PerlSock_sethostent(TOPi);
4975 DIE(aTHX_ PL_no_sock_func, "sethostent");
4981 #ifdef HAS_SETNETENT
4983 PerlSock_setnetent(TOPi);
4986 DIE(aTHX_ PL_no_sock_func, "setnetent");
4992 #ifdef HAS_SETPROTOENT
4994 PerlSock_setprotoent(TOPi);
4997 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5003 #ifdef HAS_SETSERVENT
5005 PerlSock_setservent(TOPi);
5008 DIE(aTHX_ PL_no_sock_func, "setservent");
5014 #ifdef HAS_ENDHOSTENT
5016 PerlSock_endhostent();
5020 DIE(aTHX_ PL_no_sock_func, "endhostent");
5026 #ifdef HAS_ENDNETENT
5028 PerlSock_endnetent();
5032 DIE(aTHX_ PL_no_sock_func, "endnetent");
5038 #ifdef HAS_ENDPROTOENT
5040 PerlSock_endprotoent();
5044 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5050 #ifdef HAS_ENDSERVENT
5052 PerlSock_endservent();
5056 DIE(aTHX_ PL_no_sock_func, "endservent");
5065 DIE(aTHX_ PL_no_func, "getpwnam");
5074 DIE(aTHX_ PL_no_func, "getpwuid");
5082 I32 which = PL_op->op_type;
5085 struct passwd *pwent = NULL;
5087 * We currently support only the SysV getsp* shadow password interface.
5088 * The interface is declared in <shadow.h> and often one needs to link
5089 * with -lsecurity or some such.
5090 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5093 * AIX getpwnam() is clever enough to return the encrypted password
5094 * only if the caller (euid?) is root.
5096 * There are at least two other shadow password APIs. Many platforms
5097 * seem to contain more than one interface for accessing the shadow
5098 * password databases, possibly for compatibility reasons.
5099 * The getsp*() is by far he simplest one, the other two interfaces
5100 * are much more complicated, but also very similar to each other.
5105 * struct pr_passwd *getprpw*();
5106 * The password is in
5107 * char getprpw*(...).ufld.fd_encrypt[]
5108 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5113 * struct es_passwd *getespw*();
5114 * The password is in
5115 * char *(getespw*(...).ufld.fd_encrypt)
5116 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5118 * Mention I_PROT here so that Configure probes for it.
5120 * In HP-UX for getprpw*() the manual page claims that one should include
5121 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5122 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5123 * and pp_sys.c already includes <shadow.h> if there is such.
5125 * Note that <sys/security.h> is already probed for, but currently
5126 * it is only included in special cases.
5128 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5129 * be preferred interface, even though also the getprpw*() interface
5130 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5131 * One also needs to call set_auth_parameters() in main() before
5132 * doing anything else, whether one is using getespw*() or getprpw*().
5134 * Note that accessing the shadow databases can be magnitudes
5135 * slower than accessing the standard databases.
5142 pwent = getpwnam(POPpbytex);
5145 pwent = getpwuid((Uid_t)POPi);
5148 # ifdef HAS_GETPWENT
5151 DIE(aTHX_ PL_no_func, "getpwent");
5157 if (GIMME != G_ARRAY) {
5158 PUSHs(sv = sv_newmortal());
5160 if (which == OP_GPWNAM)
5161 # if Uid_t_sign <= 0
5162 sv_setiv(sv, (IV)pwent->pw_uid);
5164 sv_setuv(sv, (UV)pwent->pw_uid);
5167 sv_setpv(sv, pwent->pw_name);
5173 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5174 sv_setpv(sv, pwent->pw_name);
5176 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5178 /* If we have getspnam(), we try to dig up the shadow
5179 * password. If we are underprivileged, the shadow
5180 * interface will set the errno to EACCES or similar,
5181 * and return a null pointer. If this happens, we will
5182 * use the dummy password (usually "*" or "x") from the
5183 * standard password database.
5185 * In theory we could skip the shadow call completely
5186 * if euid != 0 but in practice we cannot know which
5187 * security measures are guarding the shadow databases
5188 * on a random platform.
5190 * Resist the urge to use additional shadow interfaces.
5191 * Divert the urge to writing an extension instead.
5194 # ifdef HAS_GETSPNAM
5196 struct spwd *spwent;
5197 int saverrno; /* Save and restore errno so that
5198 * underprivileged attempts seem
5199 * to have never made the unsccessful
5200 * attempt to retrieve the shadow password. */
5203 spwent = getspnam(pwent->pw_name);
5205 if (spwent && spwent->sp_pwdp)
5206 sv_setpv(sv, spwent->sp_pwdp);
5210 if (!SvPOK(sv)) /* Use the standard password, then. */
5211 sv_setpv(sv, pwent->pw_passwd);
5214 # ifndef INCOMPLETE_TAINTS
5215 /* passwd is tainted because user himself can diddle with it.
5216 * admittedly not much and in a very limited way, but nevertheless. */
5220 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5221 # if Uid_t_sign <= 0
5222 sv_setiv(sv, (IV)pwent->pw_uid);
5224 sv_setuv(sv, (UV)pwent->pw_uid);
5227 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5228 # if Uid_t_sign <= 0
5229 sv_setiv(sv, (IV)pwent->pw_gid);
5231 sv_setuv(sv, (UV)pwent->pw_gid);
5233 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5234 * because of the poor interface of the Perl getpw*(),
5235 * not because there's some standard/convention saying so.
5236 * A better interface would have been to return a hash,
5237 * but we are accursed by our history, alas. --jhi. */
5238 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5240 sv_setiv(sv, (IV)pwent->pw_change);
5243 sv_setiv(sv, (IV)pwent->pw_quota);
5246 sv_setpv(sv, pwent->pw_age);
5251 /* pw_class and pw_comment are mutually exclusive--.
5252 * see the above note for pw_change, pw_quota, and pw_age. */
5253 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5255 sv_setpv(sv, pwent->pw_class);
5258 sv_setpv(sv, pwent->pw_comment);
5262 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5264 sv_setpv(sv, pwent->pw_gecos);
5266 # ifndef INCOMPLETE_TAINTS
5267 /* pw_gecos is tainted because user himself can diddle with it. */
5271 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5272 sv_setpv(sv, pwent->pw_dir);
5274 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5275 sv_setpv(sv, pwent->pw_shell);
5276 # ifndef INCOMPLETE_TAINTS
5277 /* pw_shell is tainted because user himself can diddle with it. */
5282 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5283 sv_setiv(sv, (IV)pwent->pw_expire);
5288 DIE(aTHX_ PL_no_func, "getpwent");
5294 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5299 DIE(aTHX_ PL_no_func, "setpwent");
5305 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5310 DIE(aTHX_ PL_no_func, "endpwent");
5319 DIE(aTHX_ PL_no_func, "getgrnam");
5328 DIE(aTHX_ PL_no_func, "getgrgid");
5336 I32 which = PL_op->op_type;
5337 register char **elem;
5339 struct group *grent;
5342 if (which == OP_GGRNAM)
5343 grent = (struct group *)getgrnam(POPpbytex);
5344 else if (which == OP_GGRGID)
5345 grent = (struct group *)getgrgid(POPi);
5348 grent = (struct group *)getgrent();
5350 DIE(aTHX_ PL_no_func, "getgrent");
5354 if (GIMME != G_ARRAY) {
5355 PUSHs(sv = sv_newmortal());
5357 if (which == OP_GGRNAM)
5358 sv_setiv(sv, (IV)grent->gr_gid);
5360 sv_setpv(sv, grent->gr_name);
5366 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5367 sv_setpv(sv, grent->gr_name);
5369 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5371 sv_setpv(sv, grent->gr_passwd);
5374 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5375 sv_setiv(sv, (IV)grent->gr_gid);
5377 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5378 for (elem = grent->gr_mem; elem && *elem; elem++) {
5379 sv_catpv(sv, *elem);
5381 sv_catpvn(sv, " ", 1);
5387 DIE(aTHX_ PL_no_func, "getgrent");
5393 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5398 DIE(aTHX_ PL_no_func, "setgrent");
5404 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5409 DIE(aTHX_ PL_no_func, "endgrent");
5419 if (!(tmps = PerlProc_getlogin()))
5421 PUSHp(tmps, strlen(tmps));
5424 DIE(aTHX_ PL_no_func, "getlogin");
5428 /* Miscellaneous. */
5433 dSP; dMARK; dORIGMARK; dTARGET;
5434 register I32 items = SP - MARK;
5435 unsigned long a[20];
5441 while (++MARK <= SP) {
5442 if (SvTAINTED(*MARK)) {
5448 TAINT_PROPER("syscall");
5451 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5452 * or where sizeof(long) != sizeof(char*). But such machines will
5453 * not likely have syscall implemented either, so who cares?
5455 while (++MARK <= SP) {
5456 if (SvNIOK(*MARK) || !i)
5457 a[i++] = SvIV(*MARK);
5458 else if (*MARK == &PL_sv_undef)
5461 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5467 DIE(aTHX_ "Too many args to syscall");
5469 DIE(aTHX_ "Too few args to syscall");
5471 retval = syscall(a[0]);
5474 retval = syscall(a[0],a[1]);
5477 retval = syscall(a[0],a[1],a[2]);
5480 retval = syscall(a[0],a[1],a[2],a[3]);
5483 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5486 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5489 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5492 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5496 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5499 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5502 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5506 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5510 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5514 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5515 a[10],a[11],a[12],a[13]);
5517 #endif /* atarist */
5523 DIE(aTHX_ PL_no_func, "syscall");
5527 #ifdef FCNTL_EMULATE_FLOCK
5529 /* XXX Emulate flock() with fcntl().
5530 What's really needed is a good file locking module.
5534 fcntl_emulate_flock(int fd, int operation)
5538 switch (operation & ~LOCK_NB) {
5540 flock.l_type = F_RDLCK;
5543 flock.l_type = F_WRLCK;
5546 flock.l_type = F_UNLCK;
5552 flock.l_whence = SEEK_SET;
5553 flock.l_start = flock.l_len = (Off_t)0;
5555 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5558 #endif /* FCNTL_EMULATE_FLOCK */
5560 #ifdef LOCKF_EMULATE_FLOCK
5562 /* XXX Emulate flock() with lockf(). This is just to increase
5563 portability of scripts. The calls are not completely
5564 interchangeable. What's really needed is a good file
5568 /* The lockf() constants might have been defined in <unistd.h>.
5569 Unfortunately, <unistd.h> causes troubles on some mixed
5570 (BSD/POSIX) systems, such as SunOS 4.1.3.
5572 Further, the lockf() constants aren't POSIX, so they might not be
5573 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5574 just stick in the SVID values and be done with it. Sigh.
5578 # define F_ULOCK 0 /* Unlock a previously locked region */
5581 # define F_LOCK 1 /* Lock a region for exclusive use */
5584 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5587 # define F_TEST 3 /* Test a region for other processes locks */
5591 lockf_emulate_flock(int fd, int operation)
5597 /* flock locks entire file so for lockf we need to do the same */
5599 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5600 if (pos > 0) /* is seekable and needs to be repositioned */
5601 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5602 pos = -1; /* seek failed, so don't seek back afterwards */
5605 switch (operation) {
5607 /* LOCK_SH - get a shared lock */
5609 /* LOCK_EX - get an exclusive lock */
5611 i = lockf (fd, F_LOCK, 0);
5614 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5615 case LOCK_SH|LOCK_NB:
5616 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5617 case LOCK_EX|LOCK_NB:
5618 i = lockf (fd, F_TLOCK, 0);
5620 if ((errno == EAGAIN) || (errno == EACCES))
5621 errno = EWOULDBLOCK;
5624 /* LOCK_UN - unlock (non-blocking is a no-op) */
5626 case LOCK_UN|LOCK_NB:
5627 i = lockf (fd, F_ULOCK, 0);
5630 /* Default - can't decipher operation */
5637 if (pos > 0) /* need to restore position of the handle */
5638 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5643 #endif /* LOCKF_EMULATE_FLOCK */