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);
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);
841 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
842 isGV(gv) && (cv = GvCV(gv))) {
844 XPUSHs(SvTIED_obj((SV*)gv, mg));
845 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
848 call_sv((SV *)cv, G_VOID);
852 else if (ckWARN(WARN_UNTIE)) {
853 if (mg && SvREFCNT(obj) > 1)
854 Perl_warner(aTHX_ WARN_UNTIE,
855 "untie attempted while %"UVuf" inner references still exist",
856 (UV)SvREFCNT(obj) - 1 ) ;
868 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
869 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
871 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
874 if ((mg = SvTIED_mg(sv, how))) {
875 SV *osv = SvTIED_obj(sv, mg);
876 if (osv == mg->mg_obj)
877 osv = sv_mortalcopy(osv);
895 sv = sv_mortalcopy(&PL_sv_no);
896 sv_setpv(sv, "AnyDBM_File");
897 stash = gv_stashsv(sv, FALSE);
898 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
900 require_pv("AnyDBM_File.pm");
902 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
903 DIE(aTHX_ "No dbm on this machine");
913 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
915 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
918 call_sv((SV*)GvCV(gv), G_SCALAR);
921 if (!sv_isobject(TOPs)) {
926 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
929 call_sv((SV*)GvCV(gv), G_SCALAR);
933 if (sv_isobject(TOPs)) {
934 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
935 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
957 struct timeval timebuf;
958 struct timeval *tbuf = &timebuf;
962 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
967 # if BYTEORDER & 0xf0000
968 # define ORDERBYTE (0x88888888 - BYTEORDER)
970 # define ORDERBYTE (0x4444 - BYTEORDER)
976 for (i = 1; i <= 3; i++) {
984 /* little endians can use vecs directly */
985 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
986 # if SELECT_MIN_BITS > 1
987 /* If SELECT_MIN_BITS is greater than one we most probably will want
988 * to align the sizes with SELECT_MIN_BITS/8 because for example
989 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
990 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
991 * on (sets/tests/clears bits) is 32 bits. */
992 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
994 growsize = sizeof(fd_set);
1003 masksize = NFDBITS / NBBY;
1005 masksize = sizeof(long); /* documented int, everyone seems to use long */
1007 growsize = maxlen + (masksize - (maxlen % masksize));
1008 Zero(&fd_sets[0], 4, char*);
1016 timebuf.tv_sec = (long)value;
1017 value -= (NV)timebuf.tv_sec;
1018 timebuf.tv_usec = (long)(value * 1000000.0);
1021 tbuf = Null(struct timeval*);
1023 for (i = 1; i <= 3; i++) {
1029 else if (!SvPOK(sv))
1030 SvPV_force(sv,n_a); /* force string conversion */
1033 Sv_Grow(sv, growsize);
1037 while (++j <= growsize) {
1041 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1043 New(403, fd_sets[i], growsize, char);
1044 for (offset = 0; offset < growsize; offset += masksize) {
1045 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1046 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1049 fd_sets[i] = SvPVX(sv);
1053 nfound = PerlSock_select(
1055 (Select_fd_set_t) fd_sets[1],
1056 (Select_fd_set_t) fd_sets[2],
1057 (Select_fd_set_t) fd_sets[3],
1059 for (i = 1; i <= 3; i++) {
1062 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1064 for (offset = 0; offset < growsize; offset += masksize) {
1065 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1066 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1068 Safefree(fd_sets[i]);
1075 if (GIMME == G_ARRAY && tbuf) {
1076 value = (NV)(timebuf.tv_sec) +
1077 (NV)(timebuf.tv_usec) / 1000000.0;
1078 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1079 sv_setnv(sv, value);
1083 DIE(aTHX_ "select not implemented");
1088 Perl_setdefout(pTHX_ GV *gv)
1091 (void)SvREFCNT_inc(gv);
1093 SvREFCNT_dec(PL_defoutgv);
1100 GV *newdefout, *egv;
1103 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1105 egv = GvEGV(PL_defoutgv);
1110 XPUSHs(&PL_sv_undef);
1112 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1113 if (gvp && *gvp == egv) {
1114 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1118 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1123 if (!GvIO(newdefout))
1124 gv_IOadd(newdefout);
1125 setdefout(newdefout);
1143 if (gv && (io = GvIO(gv))
1144 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1146 I32 gimme = GIMME_V;
1148 XPUSHs(SvTIED_obj((SV*)io, mg));
1151 call_method("GETC", gimme);
1154 if (gimme == G_SCALAR)
1155 SvSetMagicSV_nosteal(TARG, TOPs);
1158 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1161 sv_setpv(TARG, " ");
1162 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1163 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1164 /* Find out how many bytes the char needs */
1165 Size_t len = UTF8SKIP(SvPVX(TARG));
1168 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1169 SvCUR_set(TARG,1+len);
1179 return pp_sysread();
1183 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1185 register PERL_CONTEXT *cx;
1186 I32 gimme = GIMME_V;
1187 AV* padlist = CvPADLIST(cv);
1188 SV** svp = AvARRAY(padlist);
1194 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1196 SAVEVPTR(PL_curpad);
1197 PL_curpad = AvARRAY((AV*)svp[1]);
1199 setdefout(gv); /* locally select filehandle so $% et al work */
1232 SV *tmpsv = sv_newmortal();
1233 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1234 name = SvPV_nolen(tmpsv);
1237 DIE(aTHX_ "Undefined format \"%s\" called", name);
1238 DIE(aTHX_ "Not a format reference");
1241 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1243 IoFLAGS(io) &= ~IOf_DIDTOP;
1244 return doform(cv,gv,PL_op->op_next);
1250 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1251 register IO *io = GvIOp(gv);
1252 PerlIO *ofp = IoOFP(io);
1256 register PERL_CONTEXT *cx;
1258 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1259 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1262 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1263 PL_formtarget != PL_toptarget)
1267 if (!IoTOP_GV(io)) {
1271 if (!IoTOP_NAME(io)) {
1272 if (!IoFMT_NAME(io))
1273 IoFMT_NAME(io) = savepv(GvNAME(gv));
1274 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1275 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1276 if ((topgv && GvFORM(topgv)) ||
1277 !gv_fetchpv("top",FALSE,SVt_PVFM))
1278 IoTOP_NAME(io) = savepv(SvPVX(topname));
1280 IoTOP_NAME(io) = savepv("top");
1282 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1283 if (!topgv || !GvFORM(topgv)) {
1284 IoLINES_LEFT(io) = 100000000;
1287 IoTOP_GV(io) = topgv;
1289 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1290 I32 lines = IoLINES_LEFT(io);
1291 char *s = SvPVX(PL_formtarget);
1292 if (lines <= 0) /* Yow, header didn't even fit!!! */
1294 while (lines-- > 0) {
1295 s = strchr(s, '\n');
1301 STRLEN save = SvCUR(PL_formtarget);
1302 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1303 do_print(PL_formtarget, ofp);
1304 SvCUR_set(PL_formtarget, save);
1305 sv_chop(PL_formtarget, s);
1306 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1309 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1310 do_print(PL_formfeed, ofp);
1311 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1313 PL_formtarget = PL_toptarget;
1314 IoFLAGS(io) |= IOf_DIDTOP;
1317 DIE(aTHX_ "bad top format reference");
1322 SV *sv = sv_newmortal();
1323 gv_efullname4(sv, fgv, Nullch, FALSE);
1324 name = SvPV_nolen(sv);
1327 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1330 DIE(aTHX_ "Undefined top format called");
1334 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1335 return doform(cv,gv,PL_op);
1339 POPBLOCK(cx,PL_curpm);
1345 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1347 /* integrate with report_evil_fh()? */
1350 SV* sv = sv_newmortal();
1351 gv_efullname4(sv, gv, Nullch, FALSE);
1352 name = SvPV_nolen(sv);
1355 Perl_warner(aTHX_ WARN_IO,
1356 "Filehandle %s opened only for input", name);
1358 Perl_warner(aTHX_ WARN_IO,
1359 "Filehandle opened only for input");
1361 else if (ckWARN(WARN_CLOSED))
1362 report_evil_fh(gv, io, PL_op->op_type);
1367 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1368 if (ckWARN(WARN_IO))
1369 Perl_warner(aTHX_ WARN_IO, "page overflow");
1371 if (!do_print(PL_formtarget, fp))
1374 FmLINES(PL_formtarget) = 0;
1375 SvCUR_set(PL_formtarget, 0);
1376 *SvEND(PL_formtarget) = '\0';
1377 if (IoFLAGS(io) & IOf_FLUSH)
1378 (void)PerlIO_flush(fp);
1383 PL_formtarget = PL_bodytarget;
1385 return pop_return();
1390 dSP; dMARK; dORIGMARK;
1397 if (PL_op->op_flags & OPf_STACKED)
1402 if (gv && (io = GvIO(gv))
1403 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1405 if (MARK == ORIGMARK) {
1408 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1412 *MARK = SvTIED_obj((SV*)io, mg);
1415 call_method("PRINTF", G_SCALAR);
1418 MARK = ORIGMARK + 1;
1425 if (!(io = GvIO(gv))) {
1426 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1427 report_evil_fh(gv, io, PL_op->op_type);
1428 SETERRNO(EBADF,RMS$_IFI);
1431 else if (!(fp = IoOFP(io))) {
1432 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1433 /* integrate with report_evil_fh()? */
1437 gv_efullname4(sv, gv, Nullch, FALSE);
1438 name = SvPV_nolen(sv);
1441 Perl_warner(aTHX_ WARN_IO,
1442 "Filehandle %s opened only for input", name);
1444 Perl_warner(aTHX_ WARN_IO,
1445 "Filehandle opened only for input");
1447 else if (ckWARN(WARN_CLOSED))
1448 report_evil_fh(gv, io, PL_op->op_type);
1450 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1454 do_sprintf(sv, SP - MARK, MARK + 1);
1455 if (!do_print(sv, fp))
1458 if (IoFLAGS(io) & IOf_FLUSH)
1459 if (PerlIO_flush(fp) == EOF)
1470 PUSHs(&PL_sv_undef);
1491 /* Need TIEHANDLE method ? */
1493 tmps = SvPV(sv, len);
1494 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1495 IoLINES(GvIOp(gv)) = 0;
1499 PUSHs(&PL_sv_undef);
1506 dSP; dMARK; dORIGMARK; dTARGET;
1513 Sock_size_t bufsize;
1522 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1523 && gv && (io = GvIO(gv))
1524 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1529 *MARK = SvTIED_obj((SV*)io, mg);
1531 call_method("READ", G_SCALAR);
1544 sv_setpvn(bufsv, "", 0);
1545 length = SvIVx(*++MARK);
1548 offset = SvIVx(*++MARK);
1552 if (!io || !IoIFP(io))
1554 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1555 buffer = SvPVutf8_force(bufsv, blen);
1556 /* UTF8 may not have been set if they are all low bytes */
1560 buffer = SvPV_force(bufsv, blen);
1563 DIE(aTHX_ "Negative length");
1567 if (PL_op->op_type == OP_RECV) {
1568 char namebuf[MAXPATHLEN];
1569 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1570 bufsize = sizeof (struct sockaddr_in);
1572 bufsize = sizeof namebuf;
1574 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1578 buffer = SvGROW(bufsv, length+1);
1579 /* 'offset' means 'flags' here */
1580 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1581 (struct sockaddr *)namebuf, &bufsize);
1585 /* Bogus return without padding */
1586 bufsize = sizeof (struct sockaddr_in);
1588 SvCUR_set(bufsv, count);
1589 *SvEND(bufsv) = '\0';
1590 (void)SvPOK_only(bufsv);
1594 /* This should not be marked tainted if the fp is marked clean */
1595 if (!(IoFLAGS(io) & IOf_UNTAINT))
1596 SvTAINTED_on(bufsv);
1598 sv_setpvn(TARG, namebuf, bufsize);
1603 if (PL_op->op_type == OP_RECV)
1604 DIE(aTHX_ PL_no_sock_func, "recv");
1606 if (DO_UTF8(bufsv)) {
1607 /* offset adjust in characters not bytes */
1608 blen = sv_len_utf8(bufsv);
1612 DIE(aTHX_ "Offset outside string");
1615 if (DO_UTF8(bufsv)) {
1616 /* convert offset-as-chars to offset-as-bytes */
1617 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1620 bufsize = SvCUR(bufsv);
1621 buffer = SvGROW(bufsv, length+offset+1);
1622 if (offset > bufsize) { /* Zero any newly allocated space */
1623 Zero(buffer+bufsize, offset-bufsize, char);
1625 buffer = buffer + offset;
1627 if (PL_op->op_type == OP_SYSREAD) {
1628 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1629 if (IoTYPE(io) == IoTYPE_SOCKET) {
1630 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1636 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1641 #ifdef HAS_SOCKET__bad_code_maybe
1642 if (IoTYPE(io) == IoTYPE_SOCKET) {
1643 char namebuf[MAXPATHLEN];
1644 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1645 bufsize = sizeof (struct sockaddr_in);
1647 bufsize = sizeof namebuf;
1649 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1650 (struct sockaddr *)namebuf, &bufsize);
1655 count = PerlIO_read(IoIFP(io), buffer, length);
1656 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1657 if (count == 0 && PerlIO_error(IoIFP(io)))
1661 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1663 /* integrate with report_evil_fh()? */
1666 SV* sv = sv_newmortal();
1667 gv_efullname4(sv, gv, Nullch, FALSE);
1668 name = SvPV_nolen(sv);
1671 Perl_warner(aTHX_ WARN_IO,
1672 "Filehandle %s opened only for output", name);
1674 Perl_warner(aTHX_ WARN_IO,
1675 "Filehandle opened only for output");
1679 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1680 *SvEND(bufsv) = '\0';
1681 (void)SvPOK_only(bufsv);
1682 if (fp_utf8 && !IN_BYTES) {
1683 /* Look at utf8 we got back and count the characters */
1684 char *bend = buffer + count;
1685 while (buffer < bend) {
1686 STRLEN skip = UTF8SKIP(buffer);
1687 if (buffer+skip > bend) {
1688 /* partial character - try for rest of it */
1689 length = skip - (bend-buffer);
1690 offset = bend - SvPVX(bufsv);
1698 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1699 provided amount read (count) was what was requested (length)
1701 if (got < wanted && count == length) {
1702 length = (wanted-got);
1703 offset = bend - SvPVX(bufsv);
1706 /* return value is character count */
1711 /* This should not be marked tainted if the fp is marked clean */
1712 if (!(IoFLAGS(io) & IOf_UNTAINT))
1713 SvTAINTED_on(bufsv);
1726 int items = (SP - PL_stack_base) - TOPMARK;
1730 sv = sv_2mortal(newSViv(sv_len(*SP)));
1739 dSP; dMARK; dORIGMARK; dTARGET;
1750 if (PL_op->op_type == OP_SYSWRITE
1751 && gv && (io = GvIO(gv))
1752 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1757 *MARK = SvTIED_obj((SV*)io, mg);
1759 call_method("WRITE", G_SCALAR);
1770 #if Size_t_size > IVSIZE
1771 length = (Size_t)SvNVx(*++MARK);
1773 length = (Size_t)SvIVx(*++MARK);
1775 if ((SSize_t)length < 0)
1776 DIE(aTHX_ "Negative length");
1779 if (!io || !IoIFP(io)) {
1781 if (ckWARN(WARN_CLOSED))
1782 report_evil_fh(gv, io, PL_op->op_type);
1786 if (PerlIO_isutf8(IoIFP(io))) {
1787 buffer = SvPVutf8(bufsv, blen);
1791 sv_utf8_downgrade(bufsv, FALSE);
1792 buffer = SvPV(bufsv, blen);
1795 if (PL_op->op_type == OP_SYSWRITE) {
1797 if (DO_UTF8(bufsv)) {
1798 /* length and offset are in chars */
1799 blen = sv_len_utf8(bufsv);
1802 offset = SvIVx(*++MARK);
1805 DIE(aTHX_ "Offset outside string");
1807 } else if (offset >= blen && blen > 0)
1808 DIE(aTHX_ "Offset outside string");
1811 if (length > blen - offset)
1812 length = blen - offset;
1813 if (DO_UTF8(bufsv)) {
1814 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1815 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1818 buffer = buffer+offset;
1820 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1821 if (IoTYPE(io) == IoTYPE_SOCKET) {
1822 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1828 /* See the note at doio.c:do_print about filesize limits. --jhi */
1829 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1834 else if (SP > MARK) {
1837 sockbuf = SvPVx(*++MARK, mlen);
1838 /* length is really flags */
1839 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1840 length, (struct sockaddr *)sockbuf, mlen);
1843 /* length is really flags */
1844 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1847 DIE(aTHX_ PL_no_sock_func, "send");
1852 #if Size_t_size > IVSIZE
1866 return pp_sysread();
1877 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1879 gv = PL_last_in_gv = PL_argvgv;
1881 if (io && !IoIFP(io)) {
1882 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1884 IoFLAGS(io) &= ~IOf_START;
1885 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1886 sv_setpvn(GvSV(gv), "-", 1);
1887 SvSETMAGIC(GvSV(gv));
1889 else if (!nextargv(gv))
1894 gv = PL_last_in_gv; /* eof */
1897 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1899 if (gv && (io = GvIO(gv))
1900 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1903 XPUSHs(SvTIED_obj((SV*)io, mg));
1906 call_method("EOF", G_SCALAR);
1912 PUSHs(boolSV(!gv || do_eof(gv)));
1926 gv = PL_last_in_gv = (GV*)POPs;
1928 if (gv && (io = GvIO(gv))
1929 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1932 XPUSHs(SvTIED_obj((SV*)io, mg));
1935 call_method("TELL", G_SCALAR);
1941 #if LSEEKSIZE > IVSIZE
1942 PUSHn( do_tell(gv) );
1944 PUSHi( do_tell(gv) );
1951 return pp_sysseek();
1960 #if LSEEKSIZE > IVSIZE
1961 Off_t offset = (Off_t)SvNVx(POPs);
1963 Off_t offset = (Off_t)SvIVx(POPs);
1967 gv = PL_last_in_gv = (GV*)POPs;
1969 if (gv && (io = GvIO(gv))
1970 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1973 XPUSHs(SvTIED_obj((SV*)io, mg));
1974 #if LSEEKSIZE > IVSIZE
1975 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1977 XPUSHs(sv_2mortal(newSViv(offset)));
1979 XPUSHs(sv_2mortal(newSViv(whence)));
1982 call_method("SEEK", G_SCALAR);
1988 if (PL_op->op_type == OP_SEEK)
1989 PUSHs(boolSV(do_seek(gv, offset, whence)));
1991 Off_t sought = do_sysseek(gv, offset, whence);
1993 PUSHs(&PL_sv_undef);
1996 #if LSEEKSIZE > IVSIZE
2001 : newSVpvn(zero_but_true, ZBTLEN);
2002 PUSHs(sv_2mortal(sv));
2011 /* There seems to be no consensus on the length type of truncate()
2012 * and ftruncate(), both off_t and size_t have supporters. In
2013 * general one would think that when using large files, off_t is
2014 * at least as wide as size_t, so using an off_t should be okay. */
2015 /* XXX Configure probe for the length type of *truncate() needed XXX */
2018 #if Size_t_size > IVSIZE
2023 /* Checking for length < 0 is problematic as the type might or
2024 * might not be signed: if it is not, clever compilers will moan. */
2025 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2027 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2033 if (PL_op->op_flags & OPf_SPECIAL) {
2034 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2037 TAINT_PROPER("truncate");
2038 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2041 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2043 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2045 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2054 if (SvTYPE(sv) == SVt_PVGV) {
2055 tmpgv = (GV*)sv; /* *main::FRED for example */
2058 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2059 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2063 name = SvPV(sv, n_a);
2064 TAINT_PROPER("truncate");
2066 if (truncate(name, len) < 0)
2072 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2075 if (my_chsize(tmpfd, len) < 0)
2077 PerlLIO_close(tmpfd);
2086 SETERRNO(EBADF,RMS$_IFI);
2090 DIE(aTHX_ "truncate not implemented");
2103 unsigned int func = POPu;
2104 int optype = PL_op->op_type;
2108 IO *io = gv ? GvIOn(gv) : 0;
2110 if (!io || !argsv || !IoIFP(io)) {
2111 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2112 report_evil_fh(gv, io, PL_op->op_type);
2113 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2117 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2120 s = SvPV_force(argsv, len);
2121 need = IOCPARM_LEN(func);
2123 s = Sv_Grow(argsv, need + 1);
2124 SvCUR_set(argsv, need);
2127 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2130 retval = SvIV(argsv);
2131 s = INT2PTR(char*,retval); /* ouch */
2134 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2136 if (optype == OP_IOCTL)
2138 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2140 DIE(aTHX_ "ioctl is not implemented");
2144 #if defined(OS2) && defined(__EMX__)
2145 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2147 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2150 DIE(aTHX_ "fcntl is not implemented");
2154 if (s[SvCUR(argsv)] != 17)
2155 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2157 s[SvCUR(argsv)] = 0; /* put our null back */
2158 SvSETMAGIC(argsv); /* Assume it has changed */
2167 PUSHp(zero_but_true, ZBTLEN);
2187 if (gv && (io = GvIO(gv)))
2194 (void)PerlIO_flush(fp);
2195 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2198 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2199 report_evil_fh(gv, io, PL_op->op_type);
2201 SETERRNO(EBADF,RMS$_IFI);
2206 DIE(aTHX_ PL_no_func, "flock()");
2218 int protocol = POPi;
2224 io = gv ? GvIOn(gv) : NULL;
2227 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2228 report_evil_fh(gv, io, PL_op->op_type);
2230 do_close(gv, FALSE);
2231 SETERRNO(EBADF,LIB$_INVARG);
2236 do_close(gv, FALSE);
2238 TAINT_PROPER("socket");
2239 fd = PerlSock_socket(domain, type, protocol);
2242 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2243 IoOFP(io) = PerlIO_fdopen(fd, "w");
2244 IoTYPE(io) = IoTYPE_SOCKET;
2245 if (!IoIFP(io) || !IoOFP(io)) {
2246 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2247 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2248 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2251 #if defined(HAS_FCNTL) && defined(F_SETFD)
2252 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2256 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2261 DIE(aTHX_ PL_no_sock_func, "socket");
2267 #ifdef HAS_SOCKETPAIR
2273 int protocol = POPi;
2280 io1 = gv1 ? GvIOn(gv1) : NULL;
2281 io2 = gv2 ? GvIOn(gv2) : NULL;
2282 if (!gv1 || !gv2 || !io1 || !io2) {
2283 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2285 report_evil_fh(gv1, io1, PL_op->op_type);
2287 report_evil_fh(gv1, io2, PL_op->op_type);
2290 do_close(gv1, FALSE);
2292 do_close(gv2, FALSE);
2297 do_close(gv1, FALSE);
2299 do_close(gv2, FALSE);
2301 TAINT_PROPER("socketpair");
2302 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2304 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2305 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2306 IoTYPE(io1) = IoTYPE_SOCKET;
2307 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2308 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2309 IoTYPE(io2) = IoTYPE_SOCKET;
2310 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2311 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2312 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2313 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2314 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2315 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2316 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2319 #if defined(HAS_FCNTL) && defined(F_SETFD)
2320 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2321 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2326 DIE(aTHX_ PL_no_sock_func, "socketpair");
2334 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2335 extern void GETPRIVMODE();
2336 extern void GETUSERMODE();
2341 register IO *io = GvIOn(gv);
2345 int mpeprivmode = 0;
2348 if (!io || !IoIFP(io))
2351 addr = SvPV(addrsv, len);
2352 TAINT_PROPER("bind");
2353 #ifdef MPE /* Deal with MPE bind() peculiarities */
2354 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2355 /* The address *MUST* stupidly be zero. */
2356 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2357 /* PRIV mode is required to bind() to ports < 1024. */
2358 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2359 ((struct sockaddr_in *)addr)->sin_port > 0) {
2360 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2365 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2366 (struct sockaddr *)addr, len) >= 0)
2369 #ifdef MPE /* Switch back to USER mode */
2380 if (ckWARN(WARN_CLOSED))
2381 report_evil_fh(gv, io, PL_op->op_type);
2382 SETERRNO(EBADF,SS$_IVCHAN);
2385 DIE(aTHX_ PL_no_sock_func, "bind");
2396 register IO *io = GvIOn(gv);
2399 if (!io || !IoIFP(io))
2402 addr = SvPV(addrsv, len);
2403 TAINT_PROPER("connect");
2404 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2410 if (ckWARN(WARN_CLOSED))
2411 report_evil_fh(gv, io, PL_op->op_type);
2412 SETERRNO(EBADF,SS$_IVCHAN);
2415 DIE(aTHX_ PL_no_sock_func, "connect");
2425 register IO *io = gv ? GvIOn(gv) : NULL;
2427 if (!gv || !io || !IoIFP(io))
2430 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2436 if (ckWARN(WARN_CLOSED))
2437 report_evil_fh(gv, io, PL_op->op_type);
2438 SETERRNO(EBADF,SS$_IVCHAN);
2441 DIE(aTHX_ PL_no_sock_func, "listen");
2453 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2454 Sock_size_t len = sizeof saddr;
2466 if (!gstio || !IoIFP(gstio))
2470 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2474 do_close(ngv, FALSE);
2475 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2476 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2477 IoTYPE(nstio) = IoTYPE_SOCKET;
2478 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2479 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2480 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2481 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2484 #if defined(HAS_FCNTL) && defined(F_SETFD)
2485 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2489 len = sizeof saddr; /* EPOC somehow truncates info */
2490 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2493 PUSHp((char *)&saddr, len);
2497 if (ckWARN(WARN_CLOSED))
2498 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2499 SETERRNO(EBADF,SS$_IVCHAN);
2505 DIE(aTHX_ PL_no_sock_func, "accept");
2515 register IO *io = GvIOn(gv);
2517 if (!io || !IoIFP(io))
2520 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2524 if (ckWARN(WARN_CLOSED))
2525 report_evil_fh(gv, io, PL_op->op_type);
2526 SETERRNO(EBADF,SS$_IVCHAN);
2529 DIE(aTHX_ PL_no_sock_func, "shutdown");
2536 return pp_ssockopt();
2538 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2546 int optype = PL_op->op_type;
2549 unsigned int optname;
2555 if (optype == OP_GSOCKOPT)
2556 sv = sv_2mortal(NEWSV(22, 257));
2559 optname = (unsigned int) POPi;
2560 lvl = (unsigned int) POPi;
2564 if (!io || !IoIFP(io))
2567 fd = PerlIO_fileno(IoIFP(io));
2571 (void)SvPOK_only(sv);
2575 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2590 aint = (int)SvIV(sv);
2594 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2603 if (ckWARN(WARN_CLOSED))
2604 report_evil_fh(gv, io, optype);
2605 SETERRNO(EBADF,SS$_IVCHAN);
2610 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2617 return pp_getpeername();
2619 DIE(aTHX_ PL_no_sock_func, "getsockname");
2627 int optype = PL_op->op_type;
2631 register IO *io = GvIOn(gv);
2634 if (!io || !IoIFP(io))
2637 sv = sv_2mortal(NEWSV(22, 257));
2638 (void)SvPOK_only(sv);
2642 fd = PerlIO_fileno(IoIFP(io));
2644 case OP_GETSOCKNAME:
2645 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2648 case OP_GETPEERNAME:
2649 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2651 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2653 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";
2654 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2655 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2656 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2657 sizeof(u_short) + sizeof(struct in_addr))) {
2664 #ifdef BOGUS_GETNAME_RETURN
2665 /* Interactive Unix, getpeername() and getsockname()
2666 does not return valid namelen */
2667 if (len == BOGUS_GETNAME_RETURN)
2668 len = sizeof(struct sockaddr);
2676 if (ckWARN(WARN_CLOSED))
2677 report_evil_fh(gv, io, optype);
2678 SETERRNO(EBADF,SS$_IVCHAN);
2683 DIE(aTHX_ PL_no_sock_func, "getpeername");
2702 if (PL_op->op_flags & OPf_REF) {
2704 if (PL_op->op_type == OP_LSTAT) {
2705 if (PL_laststype != OP_LSTAT)
2706 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2707 if (ckWARN(WARN_IO) && gv != PL_defgv)
2708 Perl_warner(aTHX_ WARN_IO,
2709 "lstat() on filehandle %s", GvENAME(gv));
2710 /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
2714 if (gv != PL_defgv) {
2715 PL_laststype = OP_STAT;
2717 sv_setpv(PL_statname, "");
2718 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2719 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2721 if (PL_laststatval < 0) {
2722 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2723 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2729 if (SvTYPE(sv) == SVt_PVGV) {
2733 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2737 sv_setpv(PL_statname, SvPV(sv,n_a));
2740 PL_laststype = PL_op->op_type;
2741 if (PL_op->op_type == OP_LSTAT)
2742 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2745 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2746 if (PL_laststatval < 0) {
2747 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2748 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
2754 if (gimme != G_ARRAY) {
2755 if (gimme != G_VOID)
2756 XPUSHs(boolSV(max));
2762 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2763 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2764 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2765 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2766 #if Uid_t_size > IVSIZE
2767 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2769 # if Uid_t_sign <= 0
2770 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2772 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2775 #if Gid_t_size > IVSIZE
2776 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2778 # if Gid_t_sign <= 0
2779 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2781 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2784 #ifdef USE_STAT_RDEV
2785 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2787 PUSHs(sv_2mortal(newSVpvn("", 0)));
2789 #if Off_t_size > IVSIZE
2790 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2792 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2795 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2796 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2797 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2799 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2800 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2801 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2803 #ifdef USE_STAT_BLOCKS
2804 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2805 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2807 PUSHs(sv_2mortal(newSVpvn("", 0)));
2808 PUSHs(sv_2mortal(newSVpvn("", 0)));
2818 #if defined(HAS_ACCESS) && defined(R_OK)
2820 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2821 result = access(TOPpx, R_OK);
2836 if (cando(S_IRUSR, 0, &PL_statcache))
2845 #if defined(HAS_ACCESS) && defined(W_OK)
2847 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2848 result = access(TOPpx, W_OK);
2863 if (cando(S_IWUSR, 0, &PL_statcache))
2872 #if defined(HAS_ACCESS) && defined(X_OK)
2874 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2875 result = access(TOPpx, X_OK);
2890 if (cando(S_IXUSR, 0, &PL_statcache))
2899 #ifdef PERL_EFF_ACCESS_R_OK
2901 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2902 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2917 if (cando(S_IRUSR, 1, &PL_statcache))
2926 #ifdef PERL_EFF_ACCESS_W_OK
2928 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2929 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2944 if (cando(S_IWUSR, 1, &PL_statcache))
2953 #ifdef PERL_EFF_ACCESS_X_OK
2955 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2956 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2971 if (cando(S_IXUSR, 1, &PL_statcache))
2978 I32 result = my_stat();
2987 return pp_ftrowned();
2992 I32 result = my_stat();
2996 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3004 I32 result = my_stat();
3008 if (PL_statcache.st_size == 0)
3015 I32 result = my_stat();
3019 #if Off_t_size > IVSIZE
3020 PUSHn(PL_statcache.st_size);
3022 PUSHi(PL_statcache.st_size);
3029 I32 result = my_stat();
3033 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3039 I32 result = my_stat();
3043 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3049 I32 result = my_stat();
3053 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3059 I32 result = my_stat();
3063 if (S_ISSOCK(PL_statcache.st_mode))
3070 I32 result = my_stat();
3074 if (S_ISCHR(PL_statcache.st_mode))
3081 I32 result = my_stat();
3085 if (S_ISBLK(PL_statcache.st_mode))
3092 I32 result = my_stat();
3096 if (S_ISREG(PL_statcache.st_mode))
3103 I32 result = my_stat();
3107 if (S_ISDIR(PL_statcache.st_mode))
3114 I32 result = my_stat();
3118 if (S_ISFIFO(PL_statcache.st_mode))
3125 I32 result = my_lstat();
3129 if (S_ISLNK(PL_statcache.st_mode))
3138 I32 result = my_stat();
3142 if (PL_statcache.st_mode & S_ISUID)
3152 I32 result = my_stat();
3156 if (PL_statcache.st_mode & S_ISGID)
3166 I32 result = my_stat();
3170 if (PL_statcache.st_mode & S_ISVTX)
3181 char *tmps = Nullch;
3184 if (PL_op->op_flags & OPf_REF)
3186 else if (isGV(TOPs))
3188 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3189 gv = (GV*)SvRV(POPs);
3191 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3193 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3194 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3195 else if (tmps && isDIGIT(*tmps))
3199 if (PerlLIO_isatty(fd))
3204 #if defined(atarist) /* this will work with atariST. Configure will
3205 make guesses for other systems. */
3206 # define FILE_base(f) ((f)->_base)
3207 # define FILE_ptr(f) ((f)->_ptr)
3208 # define FILE_cnt(f) ((f)->_cnt)
3209 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3219 register STDCHAR *s;
3226 if (PL_op->op_flags & OPf_REF)
3228 else if (isGV(TOPs))
3230 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3231 gv = (GV*)SvRV(POPs);
3237 if (gv == PL_defgv) {
3239 io = GvIO(PL_statgv);
3242 goto really_filename;
3247 PL_laststatval = -1;
3248 sv_setpv(PL_statname, "");
3249 io = GvIO(PL_statgv);
3251 if (io && IoIFP(io)) {
3252 if (! PerlIO_has_base(IoIFP(io)))
3253 DIE(aTHX_ "-T and -B not implemented on filehandles");
3254 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3255 if (PL_laststatval < 0)
3257 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3258 if (PL_op->op_type == OP_FTTEXT)
3263 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3264 i = PerlIO_getc(IoIFP(io));
3266 (void)PerlIO_ungetc(IoIFP(io),i);
3268 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3270 len = PerlIO_get_bufsiz(IoIFP(io));
3271 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3272 /* sfio can have large buffers - limit to 512 */
3277 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3279 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3281 SETERRNO(EBADF,RMS$_IFI);
3289 PL_laststatval = -1;
3290 sv_setpv(PL_statname, SvPV(sv, n_a));
3291 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3292 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3293 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
3296 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3297 if (PL_laststatval < 0) {
3298 (void)PerlIO_close(fp);
3301 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3302 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3303 (void)PerlIO_close(fp);
3305 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3306 RETPUSHNO; /* special case NFS directories */
3307 RETPUSHYES; /* null file is anything */
3312 /* now scan s to look for textiness */
3313 /* XXX ASCII dependent code */
3315 #if defined(DOSISH) || defined(USEMYBINMODE)
3316 /* ignore trailing ^Z on short files */
3317 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3321 for (i = 0; i < len; i++, s++) {
3322 if (!*s) { /* null never allowed in text */
3327 else if (!(isPRINT(*s) || isSPACE(*s)))
3330 else if (*s & 128) {
3332 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3335 /* utf8 characters don't count as odd */
3336 if (UTF8_IS_START(*s)) {
3337 int ulen = UTF8SKIP(s);
3338 if (ulen < len - i) {
3340 for (j = 1; j < ulen; j++) {
3341 if (!UTF8_IS_CONTINUATION(s[j]))
3344 --ulen; /* loop does extra increment */
3354 *s != '\n' && *s != '\r' && *s != '\b' &&
3355 *s != '\t' && *s != '\f' && *s != 27)
3360 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3385 if( !tmps || !*tmps ) {
3386 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3387 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3389 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3394 deprecate("chdir('') or chdir(undef) as chdir()");
3395 tmps = SvPV(*svp, n_a);
3403 TAINT_PROPER("chdir");
3404 PUSHi( PerlDir_chdir(tmps) >= 0 );
3406 /* Clear the DEFAULT element of ENV so we'll get the new value
3408 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3416 dSP; dMARK; dTARGET;
3417 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3423 DIE(aTHX_ PL_no_func, "chown");
3433 TAINT_PROPER("chroot");
3434 PUSHi( chroot(tmps) >= 0 );
3437 DIE(aTHX_ PL_no_func, "chroot");
3443 dSP; dMARK; dTARGET;
3445 value = (I32)apply(PL_op->op_type, MARK, SP);
3453 dSP; dMARK; dTARGET;
3455 value = (I32)apply(PL_op->op_type, MARK, SP);
3463 dSP; dMARK; dTARGET;
3465 value = (I32)apply(PL_op->op_type, MARK, SP);
3477 char *tmps2 = POPpx;
3478 char *tmps = SvPV(TOPs, n_a);
3479 TAINT_PROPER("rename");
3481 anum = PerlLIO_rename(tmps, tmps2);
3483 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3484 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3487 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3488 (void)UNLINK(tmps2);
3489 if (!(anum = link(tmps, tmps2)))
3490 anum = UNLINK(tmps);
3504 char *tmps2 = POPpx;
3505 char *tmps = SvPV(TOPs, n_a);
3506 TAINT_PROPER("link");
3507 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3510 DIE(aTHX_ PL_no_func, "link");
3519 char *tmps2 = POPpx;
3520 char *tmps = SvPV(TOPs, n_a);
3521 TAINT_PROPER("symlink");
3522 SETi( symlink(tmps, tmps2) >= 0 );
3525 DIE(aTHX_ PL_no_func, "symlink");
3535 char buf[MAXPATHLEN];
3539 #ifndef INCOMPLETE_TAINTS
3543 len = readlink(tmps, buf, sizeof(buf) - 1);
3551 RETSETUNDEF; /* just pretend it's a normal file */
3555 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3557 S_dooneliner(pTHX_ char *cmd, char *filename)
3559 char *save_filename = filename;
3565 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3566 strcpy(cmdline, cmd);
3567 strcat(cmdline, " ");
3568 for (s = cmdline + strlen(cmdline); *filename; ) {
3573 myfp = PerlProc_popen(cmdline, "r");
3577 SV *tmpsv = sv_newmortal();
3578 /* Need to save/restore 'PL_rs' ?? */
3579 s = sv_gets(tmpsv, myfp, 0);
3580 (void)PerlProc_pclose(myfp);
3584 #ifdef HAS_SYS_ERRLIST
3589 /* you don't see this */
3591 #ifdef HAS_SYS_ERRLIST
3599 if (instr(s, errmsg)) {
3606 #define EACCES EPERM
3608 if (instr(s, "cannot make"))
3609 SETERRNO(EEXIST,RMS$_FEX);
3610 else if (instr(s, "existing file"))
3611 SETERRNO(EEXIST,RMS$_FEX);
3612 else if (instr(s, "ile exists"))
3613 SETERRNO(EEXIST,RMS$_FEX);
3614 else if (instr(s, "non-exist"))
3615 SETERRNO(ENOENT,RMS$_FNF);
3616 else if (instr(s, "does not exist"))
3617 SETERRNO(ENOENT,RMS$_FNF);
3618 else if (instr(s, "not empty"))
3619 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3620 else if (instr(s, "cannot access"))
3621 SETERRNO(EACCES,RMS$_PRV);
3623 SETERRNO(EPERM,RMS$_PRV);
3626 else { /* some mkdirs return no failure indication */
3627 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3628 if (PL_op->op_type == OP_RMDIR)
3633 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3658 tmps = SvPV(TOPs, len);
3659 /* Different operating and file systems take differently to
3660 * trailing slashes. According to POSIX 1003.1 1996 Edition
3661 * any number of trailing slashes should be allowed.
3662 * Thusly we snip them away so that even non-conforming
3663 * systems are happy. */
3664 /* We should probably do this "filtering" for all
3665 * the functions that expect (potentially) directory names:
3666 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3667 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3668 if (len > 1 && tmps[len-1] == '/') {
3669 while (tmps[len] == '/' && len > 1)
3671 tmps = savepvn(tmps, len);
3675 TAINT_PROPER("mkdir");
3677 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3679 SETi( dooneliner("mkdir", tmps) );
3680 oldumask = PerlLIO_umask(0);
3681 PerlLIO_umask(oldumask);
3682 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3696 TAINT_PROPER("rmdir");
3698 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3700 XPUSHi( dooneliner("rmdir", tmps) );
3705 /* Directory calls. */
3709 #if defined(Direntry_t) && defined(HAS_READDIR)
3712 char *dirname = POPpx;
3714 register IO *io = GvIOn(gv);
3720 PerlDir_close(IoDIRP(io));
3721 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3727 SETERRNO(EBADF,RMS$_DIR);
3730 DIE(aTHX_ PL_no_dir_func, "opendir");
3736 #if defined(Direntry_t) && defined(HAS_READDIR)
3738 #if !defined(I_DIRENT) && !defined(VMS)
3739 Direntry_t *readdir (DIR *);
3741 register Direntry_t *dp;
3743 register IO *io = GvIOn(gv);
3746 if (!io || !IoDIRP(io))
3749 if (GIMME == G_ARRAY) {
3751 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3753 sv = newSVpvn(dp->d_name, dp->d_namlen);
3755 sv = newSVpv(dp->d_name, 0);
3757 #ifndef INCOMPLETE_TAINTS
3758 if (!(IoFLAGS(io) & IOf_UNTAINT))
3761 XPUSHs(sv_2mortal(sv));
3765 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3768 sv = newSVpvn(dp->d_name, dp->d_namlen);
3770 sv = newSVpv(dp->d_name, 0);
3772 #ifndef INCOMPLETE_TAINTS
3773 if (!(IoFLAGS(io) & IOf_UNTAINT))
3776 XPUSHs(sv_2mortal(sv));
3782 SETERRNO(EBADF,RMS$_ISI);
3783 if (GIMME == G_ARRAY)
3788 DIE(aTHX_ PL_no_dir_func, "readdir");
3794 #if defined(HAS_TELLDIR) || defined(telldir)
3796 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3797 /* XXX netbsd still seemed to.
3798 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3799 --JHI 1999-Feb-02 */
3800 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3801 long telldir (DIR *);
3804 register IO *io = GvIOn(gv);
3806 if (!io || !IoDIRP(io))
3809 PUSHi( PerlDir_tell(IoDIRP(io)) );
3813 SETERRNO(EBADF,RMS$_ISI);
3816 DIE(aTHX_ PL_no_dir_func, "telldir");
3822 #if defined(HAS_SEEKDIR) || defined(seekdir)
3826 register IO *io = GvIOn(gv);
3828 if (!io || !IoDIRP(io))
3831 (void)PerlDir_seek(IoDIRP(io), along);
3836 SETERRNO(EBADF,RMS$_ISI);
3839 DIE(aTHX_ PL_no_dir_func, "seekdir");
3845 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3848 register IO *io = GvIOn(gv);
3850 if (!io || !IoDIRP(io))
3853 (void)PerlDir_rewind(IoDIRP(io));
3857 SETERRNO(EBADF,RMS$_ISI);
3860 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3866 #if defined(Direntry_t) && defined(HAS_READDIR)
3869 register IO *io = GvIOn(gv);
3871 if (!io || !IoDIRP(io))
3874 #ifdef VOID_CLOSEDIR
3875 PerlDir_close(IoDIRP(io));
3877 if (PerlDir_close(IoDIRP(io)) < 0) {
3878 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3887 SETERRNO(EBADF,RMS$_IFI);
3890 DIE(aTHX_ PL_no_dir_func, "closedir");
3894 /* Process control. */
3904 PERL_FLUSHALL_FOR_CHILD;
3905 childpid = PerlProc_fork();
3910 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV)))
3911 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3912 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3917 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3922 PERL_FLUSHALL_FOR_CHILD;
3923 childpid = PerlProc_fork();
3929 DIE(aTHX_ PL_no_func, "fork");
3936 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3941 #ifdef PERL_OLD_SIGNALS
3942 childpid = wait4pid(-1, &argflags, 0);
3944 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3948 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3949 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3950 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3952 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3957 DIE(aTHX_ PL_no_func, "wait");
3963 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3971 #ifdef PERL_OLD_SIGNALS
3972 childpid = wait4pid(childpid, &argflags, optype);
3974 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
3978 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3979 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3980 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3982 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3987 DIE(aTHX_ PL_no_func, "waitpid");
3993 dSP; dMARK; dORIGMARK; dTARGET;
4000 if (SP - MARK == 1) {
4002 (void)SvPV_nolen(TOPs); /* stringify for taint check */
4004 TAINT_PROPER("system");
4007 PERL_FLUSHALL_FOR_CHILD;
4008 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4012 Sigsave_t ihand,qhand; /* place to save signals during system() */
4014 if (PerlProc_pipe(pp) >= 0)
4016 while ((childpid = PerlProc_fork()) == -1) {
4017 if (errno != EAGAIN) {
4022 PerlLIO_close(pp[0]);
4023 PerlLIO_close(pp[1]);
4031 PerlLIO_close(pp[1]);
4033 rsignal_save(SIGINT, SIG_IGN, &ihand);
4034 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4037 result = wait4pid(childpid, &status, 0);
4038 } while (result == -1 && errno == EINTR);
4040 (void)rsignal_restore(SIGINT, &ihand);
4041 (void)rsignal_restore(SIGQUIT, &qhand);
4043 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4044 do_execfree(); /* free any memory child malloced on fork */
4050 while (n < sizeof(int)) {
4051 n1 = PerlLIO_read(pp[0],
4052 (void*)(((char*)&errkid)+n),
4058 PerlLIO_close(pp[0]);
4059 if (n) { /* Error */
4060 if (n != sizeof(int))
4061 DIE(aTHX_ "panic: kid popen errno read");
4062 errno = errkid; /* Propagate errno from kid */
4063 STATUS_CURRENT = -1;
4066 PUSHi(STATUS_CURRENT);
4070 PerlLIO_close(pp[0]);
4071 #if defined(HAS_FCNTL) && defined(F_SETFD)
4072 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4076 if (PL_op->op_flags & OPf_STACKED) {
4077 SV *really = *++MARK;
4078 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4080 else if (SP - MARK != 1)
4081 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4083 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4086 #else /* ! FORK or VMS or OS/2 */
4089 if (PL_op->op_flags & OPf_STACKED) {
4090 SV *really = *++MARK;
4091 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4093 else if (SP - MARK != 1)
4094 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4096 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4098 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4100 STATUS_NATIVE_SET(value);
4103 PUSHi(result ? value : STATUS_CURRENT);
4104 #endif /* !FORK or VMS */
4110 dSP; dMARK; dORIGMARK; dTARGET;
4114 PERL_FLUSHALL_FOR_CHILD;
4115 if (PL_op->op_flags & OPf_STACKED) {
4116 SV *really = *++MARK;
4117 value = (I32)do_aexec(really, MARK, SP);
4119 else if (SP - MARK != 1)
4121 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4125 (void ) do_aspawn(Nullsv, MARK, SP);
4129 value = (I32)do_aexec(Nullsv, MARK, SP);
4134 (void)SvPV_nolen(*SP); /* stringify for taint check */
4136 TAINT_PROPER("exec");
4139 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4142 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4145 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4158 dSP; dMARK; dTARGET;
4160 value = (I32)apply(PL_op->op_type, MARK, SP);
4165 DIE(aTHX_ PL_no_func, "kill");
4173 XPUSHi( getppid() );
4176 DIE(aTHX_ PL_no_func, "getppid");
4192 pgrp = (I32)BSD_GETPGRP(pid);
4194 if (pid != 0 && pid != PerlProc_getpid())
4195 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4201 DIE(aTHX_ PL_no_func, "getpgrp()");
4220 TAINT_PROPER("setpgrp");
4222 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4224 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4225 || (pid != 0 && pid != PerlProc_getpid()))
4227 DIE(aTHX_ "setpgrp can't take arguments");
4229 SETi( setpgrp() >= 0 );
4230 #endif /* USE_BSDPGRP */
4233 DIE(aTHX_ PL_no_func, "setpgrp()");
4239 #ifdef HAS_GETPRIORITY
4243 SETi( getpriority(which, who) );
4246 DIE(aTHX_ PL_no_func, "getpriority()");
4252 #ifdef HAS_SETPRIORITY
4257 TAINT_PROPER("setpriority");
4258 SETi( setpriority(which, who, niceval) >= 0 );
4261 DIE(aTHX_ PL_no_func, "setpriority()");
4271 XPUSHn( time(Null(Time_t*)) );
4273 XPUSHi( time(Null(Time_t*)) );
4278 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4279 to HZ. Probably. For now, assume that if the system
4280 defines HZ, it does so correctly. (Will this break
4282 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4283 it's supported. --AD 9/96.
4300 (void)PerlProc_times(&PL_timesbuf);
4302 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4303 /* struct tms, though same data */
4307 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4308 if (GIMME == G_ARRAY) {
4309 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4310 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4311 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4315 DIE(aTHX_ "times not implemented");
4316 #endif /* HAS_TIMES */
4329 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4330 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4331 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4337 when = (Time_t)SvNVx(POPs);
4339 when = (Time_t)SvIVx(POPs);
4342 if (PL_op->op_type == OP_LOCALTIME)
4343 tmbuf = localtime(&when);
4345 tmbuf = gmtime(&when);
4347 if (GIMME != G_ARRAY) {
4353 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4354 dayname[tmbuf->tm_wday],
4355 monname[tmbuf->tm_mon],
4360 tmbuf->tm_year + 1900);
4361 PUSHs(sv_2mortal(tsv));
4366 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4367 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4368 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4369 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4370 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4371 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4372 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4373 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4374 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4385 anum = alarm((unsigned int)anum);
4392 DIE(aTHX_ PL_no_func, "alarm");
4403 (void)time(&lasttime);
4408 PerlProc_sleep((unsigned int)duration);
4411 XPUSHi(when - lasttime);
4415 /* Shared memory. */
4429 return pp_shmwrite();
4434 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4435 dSP; dMARK; dTARGET;
4436 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4445 /* Message passing. */
4459 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4460 dSP; dMARK; dTARGET;
4461 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4472 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4473 dSP; dMARK; dTARGET;
4474 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4487 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4488 dSP; dMARK; dTARGET;
4489 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4496 DIE(aTHX_ "System V IPC is not implemented on this machine");
4502 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4503 dSP; dMARK; dTARGET;
4504 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4512 PUSHp(zero_but_true, ZBTLEN);
4522 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4523 dSP; dMARK; dTARGET;
4524 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4533 /* Get system info. */
4537 #ifdef HAS_GETHOSTBYNAME
4538 return pp_ghostent();
4540 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4546 #ifdef HAS_GETHOSTBYADDR
4547 return pp_ghostent();
4549 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4555 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4557 I32 which = PL_op->op_type;
4558 register char **elem;
4560 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4561 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4562 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
4563 struct hostent *PerlSock_gethostent(void);
4565 struct hostent *hent;
4570 if (which == OP_GHBYNAME)
4571 #ifdef HAS_GETHOSTBYNAME
4572 hent = PerlSock_gethostbyname(POPpbytex);
4574 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4576 else if (which == OP_GHBYADDR) {
4577 #ifdef HAS_GETHOSTBYADDR
4578 int addrtype = POPi;
4581 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4583 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4585 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4589 #ifdef HAS_GETHOSTENT
4590 hent = PerlSock_gethostent();
4592 DIE(aTHX_ PL_no_sock_func, "gethostent");
4595 #ifdef HOST_NOT_FOUND
4597 STATUS_NATIVE_SET(h_errno);
4600 if (GIMME != G_ARRAY) {
4601 PUSHs(sv = sv_newmortal());
4603 if (which == OP_GHBYNAME) {
4605 sv_setpvn(sv, hent->h_addr, hent->h_length);
4608 sv_setpv(sv, (char*)hent->h_name);
4614 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4615 sv_setpv(sv, (char*)hent->h_name);
4616 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4617 for (elem = hent->h_aliases; elem && *elem; elem++) {
4618 sv_catpv(sv, *elem);
4620 sv_catpvn(sv, " ", 1);
4622 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4623 sv_setiv(sv, (IV)hent->h_addrtype);
4624 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4625 len = hent->h_length;
4626 sv_setiv(sv, (IV)len);
4628 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4629 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4630 sv_setpvn(sv, *elem, len);
4633 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4635 sv_setpvn(sv, hent->h_addr, len);
4640 DIE(aTHX_ PL_no_sock_func, "gethostent");
4646 #ifdef HAS_GETNETBYNAME
4647 return pp_gnetent();
4649 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4655 #ifdef HAS_GETNETBYADDR
4656 return pp_gnetent();
4658 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4664 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4666 I32 which = PL_op->op_type;
4667 register char **elem;
4669 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4670 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4671 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4672 struct netent *PerlSock_getnetent(void);
4674 struct netent *nent;
4677 if (which == OP_GNBYNAME)
4678 #ifdef HAS_GETNETBYNAME
4679 nent = PerlSock_getnetbyname(POPpbytex);
4681 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4683 else if (which == OP_GNBYADDR) {
4684 #ifdef HAS_GETNETBYADDR
4685 int addrtype = POPi;
4686 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4687 nent = PerlSock_getnetbyaddr(addr, addrtype);
4689 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4693 #ifdef HAS_GETNETENT
4694 nent = PerlSock_getnetent();
4696 DIE(aTHX_ PL_no_sock_func, "getnetent");
4700 if (GIMME != G_ARRAY) {
4701 PUSHs(sv = sv_newmortal());
4703 if (which == OP_GNBYNAME)
4704 sv_setiv(sv, (IV)nent->n_net);
4706 sv_setpv(sv, nent->n_name);
4712 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4713 sv_setpv(sv, nent->n_name);
4714 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4715 for (elem = nent->n_aliases; elem && *elem; elem++) {
4716 sv_catpv(sv, *elem);
4718 sv_catpvn(sv, " ", 1);
4720 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4721 sv_setiv(sv, (IV)nent->n_addrtype);
4722 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4723 sv_setiv(sv, (IV)nent->n_net);
4728 DIE(aTHX_ PL_no_sock_func, "getnetent");
4734 #ifdef HAS_GETPROTOBYNAME
4735 return pp_gprotoent();
4737 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4743 #ifdef HAS_GETPROTOBYNUMBER
4744 return pp_gprotoent();
4746 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4752 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4754 I32 which = PL_op->op_type;
4755 register char **elem;
4757 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4758 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4759 struct protoent *PerlSock_getprotobynumber(int);
4760 struct protoent *PerlSock_getprotoent(void);
4762 struct protoent *pent;
4765 if (which == OP_GPBYNAME)
4766 #ifdef HAS_GETPROTOBYNAME
4767 pent = PerlSock_getprotobyname(POPpbytex);
4769 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4771 else if (which == OP_GPBYNUMBER)
4772 #ifdef HAS_GETPROTOBYNUMBER
4773 pent = PerlSock_getprotobynumber(POPi);
4775 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4778 #ifdef HAS_GETPROTOENT
4779 pent = PerlSock_getprotoent();
4781 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4785 if (GIMME != G_ARRAY) {
4786 PUSHs(sv = sv_newmortal());
4788 if (which == OP_GPBYNAME)
4789 sv_setiv(sv, (IV)pent->p_proto);
4791 sv_setpv(sv, pent->p_name);
4797 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4798 sv_setpv(sv, pent->p_name);
4799 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4800 for (elem = pent->p_aliases; elem && *elem; elem++) {
4801 sv_catpv(sv, *elem);
4803 sv_catpvn(sv, " ", 1);
4805 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4806 sv_setiv(sv, (IV)pent->p_proto);
4811 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4817 #ifdef HAS_GETSERVBYNAME
4818 return pp_gservent();
4820 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4826 #ifdef HAS_GETSERVBYPORT
4827 return pp_gservent();
4829 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4835 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4837 I32 which = PL_op->op_type;
4838 register char **elem;
4840 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4841 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4842 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4843 struct servent *PerlSock_getservent(void);
4845 struct servent *sent;
4848 if (which == OP_GSBYNAME) {
4849 #ifdef HAS_GETSERVBYNAME
4850 char *proto = POPpbytex;
4851 char *name = POPpbytex;
4853 if (proto && !*proto)
4856 sent = PerlSock_getservbyname(name, proto);
4858 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4861 else if (which == OP_GSBYPORT) {
4862 #ifdef HAS_GETSERVBYPORT
4863 char *proto = POPpbytex;
4864 unsigned short port = POPu;
4867 port = PerlSock_htons(port);
4869 sent = PerlSock_getservbyport(port, proto);
4871 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4875 #ifdef HAS_GETSERVENT
4876 sent = PerlSock_getservent();
4878 DIE(aTHX_ PL_no_sock_func, "getservent");
4882 if (GIMME != G_ARRAY) {
4883 PUSHs(sv = sv_newmortal());
4885 if (which == OP_GSBYNAME) {
4887 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4889 sv_setiv(sv, (IV)(sent->s_port));
4893 sv_setpv(sv, sent->s_name);
4899 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4900 sv_setpv(sv, sent->s_name);
4901 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4902 for (elem = sent->s_aliases; elem && *elem; elem++) {
4903 sv_catpv(sv, *elem);
4905 sv_catpvn(sv, " ", 1);
4907 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4909 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4911 sv_setiv(sv, (IV)(sent->s_port));
4913 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4914 sv_setpv(sv, sent->s_proto);
4919 DIE(aTHX_ PL_no_sock_func, "getservent");
4925 #ifdef HAS_SETHOSTENT
4927 PerlSock_sethostent(TOPi);
4930 DIE(aTHX_ PL_no_sock_func, "sethostent");
4936 #ifdef HAS_SETNETENT
4938 PerlSock_setnetent(TOPi);
4941 DIE(aTHX_ PL_no_sock_func, "setnetent");
4947 #ifdef HAS_SETPROTOENT
4949 PerlSock_setprotoent(TOPi);
4952 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4958 #ifdef HAS_SETSERVENT
4960 PerlSock_setservent(TOPi);
4963 DIE(aTHX_ PL_no_sock_func, "setservent");
4969 #ifdef HAS_ENDHOSTENT
4971 PerlSock_endhostent();
4975 DIE(aTHX_ PL_no_sock_func, "endhostent");
4981 #ifdef HAS_ENDNETENT
4983 PerlSock_endnetent();
4987 DIE(aTHX_ PL_no_sock_func, "endnetent");
4993 #ifdef HAS_ENDPROTOENT
4995 PerlSock_endprotoent();
4999 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5005 #ifdef HAS_ENDSERVENT
5007 PerlSock_endservent();
5011 DIE(aTHX_ PL_no_sock_func, "endservent");
5020 DIE(aTHX_ PL_no_func, "getpwnam");
5029 DIE(aTHX_ PL_no_func, "getpwuid");
5037 I32 which = PL_op->op_type;
5040 struct passwd *pwent = NULL;
5042 * We currently support only the SysV getsp* shadow password interface.
5043 * The interface is declared in <shadow.h> and often one needs to link
5044 * with -lsecurity or some such.
5045 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5048 * AIX getpwnam() is clever enough to return the encrypted password
5049 * only if the caller (euid?) is root.
5051 * There are at least two other shadow password APIs. Many platforms
5052 * seem to contain more than one interface for accessing the shadow
5053 * password databases, possibly for compatibility reasons.
5054 * The getsp*() is by far he simplest one, the other two interfaces
5055 * are much more complicated, but also very similar to each other.
5060 * struct pr_passwd *getprpw*();
5061 * The password is in
5062 * char getprpw*(...).ufld.fd_encrypt[]
5063 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5068 * struct es_passwd *getespw*();
5069 * The password is in
5070 * char *(getespw*(...).ufld.fd_encrypt)
5071 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5073 * Mention I_PROT here so that Configure probes for it.
5075 * In HP-UX for getprpw*() the manual page claims that one should include
5076 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5077 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5078 * and pp_sys.c already includes <shadow.h> if there is such.
5080 * Note that <sys/security.h> is already probed for, but currently
5081 * it is only included in special cases.
5083 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5084 * be preferred interface, even though also the getprpw*() interface
5085 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5086 * One also needs to call set_auth_parameters() in main() before
5087 * doing anything else, whether one is using getespw*() or getprpw*().
5089 * Note that accessing the shadow databases can be magnitudes
5090 * slower than accessing the standard databases.
5097 pwent = getpwnam(POPpbytex);
5100 pwent = getpwuid((Uid_t)POPi);
5103 # ifdef HAS_GETPWENT
5106 DIE(aTHX_ PL_no_func, "getpwent");
5112 if (GIMME != G_ARRAY) {
5113 PUSHs(sv = sv_newmortal());
5115 if (which == OP_GPWNAM)
5116 # if Uid_t_sign <= 0
5117 sv_setiv(sv, (IV)pwent->pw_uid);
5119 sv_setuv(sv, (UV)pwent->pw_uid);
5122 sv_setpv(sv, pwent->pw_name);
5128 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5129 sv_setpv(sv, pwent->pw_name);
5131 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5133 /* If we have getspnam(), we try to dig up the shadow
5134 * password. If we are underprivileged, the shadow
5135 * interface will set the errno to EACCES or similar,
5136 * and return a null pointer. If this happens, we will
5137 * use the dummy password (usually "*" or "x") from the
5138 * standard password database.
5140 * In theory we could skip the shadow call completely
5141 * if euid != 0 but in practice we cannot know which
5142 * security measures are guarding the shadow databases
5143 * on a random platform.
5145 * Resist the urge to use additional shadow interfaces.
5146 * Divert the urge to writing an extension instead.
5149 # ifdef HAS_GETSPNAM
5151 struct spwd *spwent;
5152 int saverrno; /* Save and restore errno so that
5153 * underprivileged attempts seem
5154 * to have never made the unsccessful
5155 * attempt to retrieve the shadow password. */
5158 spwent = getspnam(pwent->pw_name);
5160 if (spwent && spwent->sp_pwdp)
5161 sv_setpv(sv, spwent->sp_pwdp);
5165 if (!SvPOK(sv)) /* Use the standard password, then. */
5166 sv_setpv(sv, pwent->pw_passwd);
5169 # ifndef INCOMPLETE_TAINTS
5170 /* passwd is tainted because user himself can diddle with it.
5171 * admittedly not much and in a very limited way, but nevertheless. */
5175 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5176 # if Uid_t_sign <= 0
5177 sv_setiv(sv, (IV)pwent->pw_uid);
5179 sv_setuv(sv, (UV)pwent->pw_uid);
5182 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5183 # if Uid_t_sign <= 0
5184 sv_setiv(sv, (IV)pwent->pw_gid);
5186 sv_setuv(sv, (UV)pwent->pw_gid);
5188 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5189 * because of the poor interface of the Perl getpw*(),
5190 * not because there's some standard/convention saying so.
5191 * A better interface would have been to return a hash,
5192 * but we are accursed by our history, alas. --jhi. */
5193 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5195 sv_setiv(sv, (IV)pwent->pw_change);
5198 sv_setiv(sv, (IV)pwent->pw_quota);
5201 sv_setpv(sv, pwent->pw_age);
5206 /* pw_class and pw_comment are mutually exclusive--.
5207 * see the above note for pw_change, pw_quota, and pw_age. */
5208 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5210 sv_setpv(sv, pwent->pw_class);
5213 sv_setpv(sv, pwent->pw_comment);
5217 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5219 sv_setpv(sv, pwent->pw_gecos);
5221 # ifndef INCOMPLETE_TAINTS
5222 /* pw_gecos is tainted because user himself can diddle with it. */
5226 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5227 sv_setpv(sv, pwent->pw_dir);
5229 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5230 sv_setpv(sv, pwent->pw_shell);
5231 # ifndef INCOMPLETE_TAINTS
5232 /* pw_shell is tainted because user himself can diddle with it. */
5237 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5238 sv_setiv(sv, (IV)pwent->pw_expire);
5243 DIE(aTHX_ PL_no_func, "getpwent");
5249 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5254 DIE(aTHX_ PL_no_func, "setpwent");
5260 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5265 DIE(aTHX_ PL_no_func, "endpwent");
5274 DIE(aTHX_ PL_no_func, "getgrnam");
5283 DIE(aTHX_ PL_no_func, "getgrgid");
5291 I32 which = PL_op->op_type;
5292 register char **elem;
5294 struct group *grent;
5297 if (which == OP_GGRNAM)
5298 grent = (struct group *)getgrnam(POPpbytex);
5299 else if (which == OP_GGRGID)
5300 grent = (struct group *)getgrgid(POPi);
5303 grent = (struct group *)getgrent();
5305 DIE(aTHX_ PL_no_func, "getgrent");
5309 if (GIMME != G_ARRAY) {
5310 PUSHs(sv = sv_newmortal());
5312 if (which == OP_GGRNAM)
5313 sv_setiv(sv, (IV)grent->gr_gid);
5315 sv_setpv(sv, grent->gr_name);
5321 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5322 sv_setpv(sv, grent->gr_name);
5324 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5326 sv_setpv(sv, grent->gr_passwd);
5329 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5330 sv_setiv(sv, (IV)grent->gr_gid);
5332 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5333 for (elem = grent->gr_mem; elem && *elem; elem++) {
5334 sv_catpv(sv, *elem);
5336 sv_catpvn(sv, " ", 1);
5342 DIE(aTHX_ PL_no_func, "getgrent");
5348 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5353 DIE(aTHX_ PL_no_func, "setgrent");
5359 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5364 DIE(aTHX_ PL_no_func, "endgrent");
5374 if (!(tmps = PerlProc_getlogin()))
5376 PUSHp(tmps, strlen(tmps));
5379 DIE(aTHX_ PL_no_func, "getlogin");
5383 /* Miscellaneous. */
5388 dSP; dMARK; dORIGMARK; dTARGET;
5389 register I32 items = SP - MARK;
5390 unsigned long a[20];
5396 while (++MARK <= SP) {
5397 if (SvTAINTED(*MARK)) {
5403 TAINT_PROPER("syscall");
5406 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5407 * or where sizeof(long) != sizeof(char*). But such machines will
5408 * not likely have syscall implemented either, so who cares?
5410 while (++MARK <= SP) {
5411 if (SvNIOK(*MARK) || !i)
5412 a[i++] = SvIV(*MARK);
5413 else if (*MARK == &PL_sv_undef)
5416 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5422 DIE(aTHX_ "Too many args to syscall");
5424 DIE(aTHX_ "Too few args to syscall");
5426 retval = syscall(a[0]);
5429 retval = syscall(a[0],a[1]);
5432 retval = syscall(a[0],a[1],a[2]);
5435 retval = syscall(a[0],a[1],a[2],a[3]);
5438 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5441 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5444 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5447 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5451 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5454 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],
5469 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5470 a[10],a[11],a[12],a[13]);
5472 #endif /* atarist */
5478 DIE(aTHX_ PL_no_func, "syscall");
5482 #ifdef FCNTL_EMULATE_FLOCK
5484 /* XXX Emulate flock() with fcntl().
5485 What's really needed is a good file locking module.
5489 fcntl_emulate_flock(int fd, int operation)
5493 switch (operation & ~LOCK_NB) {
5495 flock.l_type = F_RDLCK;
5498 flock.l_type = F_WRLCK;
5501 flock.l_type = F_UNLCK;
5507 flock.l_whence = SEEK_SET;
5508 flock.l_start = flock.l_len = (Off_t)0;
5510 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5513 #endif /* FCNTL_EMULATE_FLOCK */
5515 #ifdef LOCKF_EMULATE_FLOCK
5517 /* XXX Emulate flock() with lockf(). This is just to increase
5518 portability of scripts. The calls are not completely
5519 interchangeable. What's really needed is a good file
5523 /* The lockf() constants might have been defined in <unistd.h>.
5524 Unfortunately, <unistd.h> causes troubles on some mixed
5525 (BSD/POSIX) systems, such as SunOS 4.1.3.
5527 Further, the lockf() constants aren't POSIX, so they might not be
5528 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5529 just stick in the SVID values and be done with it. Sigh.
5533 # define F_ULOCK 0 /* Unlock a previously locked region */
5536 # define F_LOCK 1 /* Lock a region for exclusive use */
5539 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5542 # define F_TEST 3 /* Test a region for other processes locks */
5546 lockf_emulate_flock(int fd, int operation)
5552 /* flock locks entire file so for lockf we need to do the same */
5554 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5555 if (pos > 0) /* is seekable and needs to be repositioned */
5556 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5557 pos = -1; /* seek failed, so don't seek back afterwards */
5560 switch (operation) {
5562 /* LOCK_SH - get a shared lock */
5564 /* LOCK_EX - get an exclusive lock */
5566 i = lockf (fd, F_LOCK, 0);
5569 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5570 case LOCK_SH|LOCK_NB:
5571 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5572 case LOCK_EX|LOCK_NB:
5573 i = lockf (fd, F_TLOCK, 0);
5575 if ((errno == EAGAIN) || (errno == EACCES))
5576 errno = EWOULDBLOCK;
5579 /* LOCK_UN - unlock (non-blocking is a no-op) */
5581 case LOCK_UN|LOCK_NB:
5582 i = lockf (fd, F_ULOCK, 0);
5585 /* Default - can't decipher operation */
5592 if (pos > 0) /* need to restore position of the handle */
5593 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5598 #endif /* LOCKF_EMULATE_FLOCK */