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;
1520 bool charstart = FALSE;
1521 STRLEN charskip = 0;
1525 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1526 && gv && (io = GvIO(gv))
1527 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1532 *MARK = SvTIED_obj((SV*)io, mg);
1534 call_method("READ", G_SCALAR);
1547 sv_setpvn(bufsv, "", 0);
1548 length = SvIVx(*++MARK);
1551 offset = SvIVx(*++MARK);
1555 if (!io || !IoIFP(io))
1557 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1558 buffer = SvPVutf8_force(bufsv, blen);
1559 /* UTF8 may not have been set if they are all low bytes */
1563 buffer = SvPV_force(bufsv, blen);
1566 DIE(aTHX_ "Negative length");
1574 if (PL_op->op_type == OP_RECV) {
1575 char namebuf[MAXPATHLEN];
1576 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1577 bufsize = sizeof (struct sockaddr_in);
1579 bufsize = sizeof namebuf;
1581 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1585 buffer = SvGROW(bufsv, length+1);
1586 /* 'offset' means 'flags' here */
1587 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1588 (struct sockaddr *)namebuf, &bufsize);
1592 /* Bogus return without padding */
1593 bufsize = sizeof (struct sockaddr_in);
1595 SvCUR_set(bufsv, count);
1596 *SvEND(bufsv) = '\0';
1597 (void)SvPOK_only(bufsv);
1601 /* This should not be marked tainted if the fp is marked clean */
1602 if (!(IoFLAGS(io) & IOf_UNTAINT))
1603 SvTAINTED_on(bufsv);
1605 sv_setpvn(TARG, namebuf, bufsize);
1610 if (PL_op->op_type == OP_RECV)
1611 DIE(aTHX_ PL_no_sock_func, "recv");
1613 if (DO_UTF8(bufsv)) {
1614 /* offset adjust in characters not bytes */
1615 blen = sv_len_utf8(bufsv);
1619 DIE(aTHX_ "Offset outside string");
1622 if (DO_UTF8(bufsv)) {
1623 /* convert offset-as-chars to offset-as-bytes */
1624 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1627 bufsize = SvCUR(bufsv);
1628 buffer = SvGROW(bufsv, length+offset+1);
1629 if (offset > bufsize) { /* Zero any newly allocated space */
1630 Zero(buffer+bufsize, offset-bufsize, char);
1632 buffer = buffer + offset;
1634 if (PL_op->op_type == OP_SYSREAD) {
1635 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1636 if (IoTYPE(io) == IoTYPE_SOCKET) {
1637 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1643 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1648 #ifdef HAS_SOCKET__bad_code_maybe
1649 if (IoTYPE(io) == IoTYPE_SOCKET) {
1650 char namebuf[MAXPATHLEN];
1651 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1652 bufsize = sizeof (struct sockaddr_in);
1654 bufsize = sizeof namebuf;
1656 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1657 (struct sockaddr *)namebuf, &bufsize);
1662 count = PerlIO_read(IoIFP(io), buffer, length);
1663 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1664 if (count == 0 && PerlIO_error(IoIFP(io)))
1668 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1670 /* integrate with report_evil_fh()? */
1673 SV* sv = sv_newmortal();
1674 gv_efullname4(sv, gv, Nullch, FALSE);
1675 name = SvPV_nolen(sv);
1678 Perl_warner(aTHX_ WARN_IO,
1679 "Filehandle %s opened only for output", name);
1681 Perl_warner(aTHX_ WARN_IO,
1682 "Filehandle opened only for output");
1686 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1687 *SvEND(bufsv) = '\0';
1688 (void)SvPOK_only(bufsv);
1689 if (fp_utf8 && !IN_BYTES) {
1690 /* Look at utf8 we got back and count the characters */
1691 char *bend = buffer + count;
1692 while (buffer < bend) {
1694 skip = UTF8SKIP(buffer);
1697 if (buffer - charskip + skip > bend) {
1698 /* partial character - try for rest of it */
1699 length = skip - (bend-buffer);
1700 offset = bend - SvPVX(bufsv);
1712 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1713 provided amount read (count) was what was requested (length)
1715 if (got < wanted && count == length) {
1716 length = wanted - got;
1717 offset = bend - SvPVX(bufsv);
1720 /* return value is character count */
1725 /* This should not be marked tainted if the fp is marked clean */
1726 if (!(IoFLAGS(io) & IOf_UNTAINT))
1727 SvTAINTED_on(bufsv);
1740 int items = (SP - PL_stack_base) - TOPMARK;
1744 sv = sv_2mortal(newSViv(sv_len(*SP)));
1753 dSP; dMARK; dORIGMARK; dTARGET;
1764 if (PL_op->op_type == OP_SYSWRITE
1765 && gv && (io = GvIO(gv))
1766 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1771 *MARK = SvTIED_obj((SV*)io, mg);
1773 call_method("WRITE", G_SCALAR);
1784 #if Size_t_size > IVSIZE
1785 length = (Size_t)SvNVx(*++MARK);
1787 length = (Size_t)SvIVx(*++MARK);
1789 if ((SSize_t)length < 0)
1790 DIE(aTHX_ "Negative length");
1793 if (!io || !IoIFP(io)) {
1795 if (ckWARN(WARN_CLOSED))
1796 report_evil_fh(gv, io, PL_op->op_type);
1800 if (PerlIO_isutf8(IoIFP(io))) {
1801 buffer = SvPVutf8(bufsv, blen);
1805 sv_utf8_downgrade(bufsv, FALSE);
1806 buffer = SvPV(bufsv, blen);
1809 if (PL_op->op_type == OP_SYSWRITE) {
1811 if (DO_UTF8(bufsv)) {
1812 /* length and offset are in chars */
1813 blen = sv_len_utf8(bufsv);
1816 offset = SvIVx(*++MARK);
1819 DIE(aTHX_ "Offset outside string");
1821 } else if (offset >= blen && blen > 0)
1822 DIE(aTHX_ "Offset outside string");
1825 if (length > blen - offset)
1826 length = blen - offset;
1827 if (DO_UTF8(bufsv)) {
1828 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1829 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1832 buffer = buffer+offset;
1834 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1835 if (IoTYPE(io) == IoTYPE_SOCKET) {
1836 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1842 /* See the note at doio.c:do_print about filesize limits. --jhi */
1843 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1848 else if (SP > MARK) {
1851 sockbuf = SvPVx(*++MARK, mlen);
1852 /* length is really flags */
1853 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1854 length, (struct sockaddr *)sockbuf, mlen);
1857 /* length is really flags */
1858 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1861 DIE(aTHX_ PL_no_sock_func, "send");
1867 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1868 #if Size_t_size > IVSIZE
1882 return pp_sysread();
1893 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1895 gv = PL_last_in_gv = PL_argvgv;
1897 if (io && !IoIFP(io)) {
1898 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1900 IoFLAGS(io) &= ~IOf_START;
1901 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1902 sv_setpvn(GvSV(gv), "-", 1);
1903 SvSETMAGIC(GvSV(gv));
1905 else if (!nextargv(gv))
1910 gv = PL_last_in_gv; /* eof */
1913 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1915 if (gv && (io = GvIO(gv))
1916 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1919 XPUSHs(SvTIED_obj((SV*)io, mg));
1922 call_method("EOF", G_SCALAR);
1928 PUSHs(boolSV(!gv || do_eof(gv)));
1942 gv = PL_last_in_gv = (GV*)POPs;
1944 if (gv && (io = GvIO(gv))
1945 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1948 XPUSHs(SvTIED_obj((SV*)io, mg));
1951 call_method("TELL", G_SCALAR);
1957 #if LSEEKSIZE > IVSIZE
1958 PUSHn( do_tell(gv) );
1960 PUSHi( do_tell(gv) );
1967 return pp_sysseek();
1976 #if LSEEKSIZE > IVSIZE
1977 Off_t offset = (Off_t)SvNVx(POPs);
1979 Off_t offset = (Off_t)SvIVx(POPs);
1983 gv = PL_last_in_gv = (GV*)POPs;
1985 if (gv && (io = GvIO(gv))
1986 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1989 XPUSHs(SvTIED_obj((SV*)io, mg));
1990 #if LSEEKSIZE > IVSIZE
1991 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1993 XPUSHs(sv_2mortal(newSViv(offset)));
1995 XPUSHs(sv_2mortal(newSViv(whence)));
1998 call_method("SEEK", G_SCALAR);
2004 if (PL_op->op_type == OP_SEEK)
2005 PUSHs(boolSV(do_seek(gv, offset, whence)));
2007 Off_t sought = do_sysseek(gv, offset, whence);
2009 PUSHs(&PL_sv_undef);
2012 #if LSEEKSIZE > IVSIZE
2017 : newSVpvn(zero_but_true, ZBTLEN);
2018 PUSHs(sv_2mortal(sv));
2027 /* There seems to be no consensus on the length type of truncate()
2028 * and ftruncate(), both off_t and size_t have supporters. In
2029 * general one would think that when using large files, off_t is
2030 * at least as wide as size_t, so using an off_t should be okay. */
2031 /* XXX Configure probe for the length type of *truncate() needed XXX */
2034 #if Size_t_size > IVSIZE
2039 /* Checking for length < 0 is problematic as the type might or
2040 * might not be signed: if it is not, clever compilers will moan. */
2041 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2043 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2049 if (PL_op->op_flags & OPf_SPECIAL) {
2050 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2053 TAINT_PROPER("truncate");
2054 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2057 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2059 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2061 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2070 if (SvTYPE(sv) == SVt_PVGV) {
2071 tmpgv = (GV*)sv; /* *main::FRED for example */
2074 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2075 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2079 name = SvPV(sv, n_a);
2080 TAINT_PROPER("truncate");
2082 if (truncate(name, len) < 0)
2088 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2091 if (my_chsize(tmpfd, len) < 0)
2093 PerlLIO_close(tmpfd);
2102 SETERRNO(EBADF,RMS$_IFI);
2106 DIE(aTHX_ "truncate not implemented");
2119 unsigned int func = POPu;
2120 int optype = PL_op->op_type;
2124 IO *io = gv ? GvIOn(gv) : 0;
2126 if (!io || !argsv || !IoIFP(io)) {
2127 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2128 report_evil_fh(gv, io, PL_op->op_type);
2129 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2133 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2136 s = SvPV_force(argsv, len);
2137 need = IOCPARM_LEN(func);
2139 s = Sv_Grow(argsv, need + 1);
2140 SvCUR_set(argsv, need);
2143 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2146 retval = SvIV(argsv);
2147 s = INT2PTR(char*,retval); /* ouch */
2150 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2152 if (optype == OP_IOCTL)
2154 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2156 DIE(aTHX_ "ioctl is not implemented");
2160 #if defined(OS2) && defined(__EMX__)
2161 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2163 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2166 DIE(aTHX_ "fcntl is not implemented");
2170 if (s[SvCUR(argsv)] != 17)
2171 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2173 s[SvCUR(argsv)] = 0; /* put our null back */
2174 SvSETMAGIC(argsv); /* Assume it has changed */
2183 PUSHp(zero_but_true, ZBTLEN);
2203 if (gv && (io = GvIO(gv)))
2210 (void)PerlIO_flush(fp);
2211 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2214 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2215 report_evil_fh(gv, io, PL_op->op_type);
2217 SETERRNO(EBADF,RMS$_IFI);
2222 DIE(aTHX_ PL_no_func, "flock()");
2234 int protocol = POPi;
2240 io = gv ? GvIOn(gv) : NULL;
2243 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2244 report_evil_fh(gv, io, PL_op->op_type);
2246 do_close(gv, FALSE);
2247 SETERRNO(EBADF,LIB$_INVARG);
2252 do_close(gv, FALSE);
2254 TAINT_PROPER("socket");
2255 fd = PerlSock_socket(domain, type, protocol);
2258 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2259 IoOFP(io) = PerlIO_fdopen(fd, "w");
2260 IoTYPE(io) = IoTYPE_SOCKET;
2261 if (!IoIFP(io) || !IoOFP(io)) {
2262 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2263 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2264 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2267 #if defined(HAS_FCNTL) && defined(F_SETFD)
2268 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2272 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2277 DIE(aTHX_ PL_no_sock_func, "socket");
2283 #if defined (HAS_SOCKETPAIR) || defined (HAS_SOCKET)
2289 int protocol = POPi;
2296 io1 = gv1 ? GvIOn(gv1) : NULL;
2297 io2 = gv2 ? GvIOn(gv2) : NULL;
2298 if (!gv1 || !gv2 || !io1 || !io2) {
2299 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2301 report_evil_fh(gv1, io1, PL_op->op_type);
2303 report_evil_fh(gv1, io2, PL_op->op_type);
2306 do_close(gv1, FALSE);
2308 do_close(gv2, FALSE);
2313 do_close(gv1, FALSE);
2315 do_close(gv2, FALSE);
2317 TAINT_PROPER("socketpair");
2318 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2320 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2321 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2322 IoTYPE(io1) = IoTYPE_SOCKET;
2323 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2324 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2325 IoTYPE(io2) = IoTYPE_SOCKET;
2326 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2327 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2328 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2329 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2330 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2331 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2332 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2335 #if defined(HAS_FCNTL) && defined(F_SETFD)
2336 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2337 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2342 DIE(aTHX_ PL_no_sock_func, "socketpair");
2350 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2351 extern void GETPRIVMODE();
2352 extern void GETUSERMODE();
2357 register IO *io = GvIOn(gv);
2361 int mpeprivmode = 0;
2364 if (!io || !IoIFP(io))
2367 addr = SvPV(addrsv, len);
2368 TAINT_PROPER("bind");
2369 #ifdef MPE /* Deal with MPE bind() peculiarities */
2370 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2371 /* The address *MUST* stupidly be zero. */
2372 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2373 /* PRIV mode is required to bind() to ports < 1024. */
2374 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2375 ((struct sockaddr_in *)addr)->sin_port > 0) {
2376 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2381 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2382 (struct sockaddr *)addr, len) >= 0)
2385 #ifdef MPE /* Switch back to USER mode */
2396 if (ckWARN(WARN_CLOSED))
2397 report_evil_fh(gv, io, PL_op->op_type);
2398 SETERRNO(EBADF,SS$_IVCHAN);
2401 DIE(aTHX_ PL_no_sock_func, "bind");
2412 register IO *io = GvIOn(gv);
2415 if (!io || !IoIFP(io))
2418 addr = SvPV(addrsv, len);
2419 TAINT_PROPER("connect");
2420 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2426 if (ckWARN(WARN_CLOSED))
2427 report_evil_fh(gv, io, PL_op->op_type);
2428 SETERRNO(EBADF,SS$_IVCHAN);
2431 DIE(aTHX_ PL_no_sock_func, "connect");
2441 register IO *io = gv ? GvIOn(gv) : NULL;
2443 if (!gv || !io || !IoIFP(io))
2446 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2452 if (ckWARN(WARN_CLOSED))
2453 report_evil_fh(gv, io, PL_op->op_type);
2454 SETERRNO(EBADF,SS$_IVCHAN);
2457 DIE(aTHX_ PL_no_sock_func, "listen");
2469 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2470 Sock_size_t len = sizeof saddr;
2482 if (!gstio || !IoIFP(gstio))
2486 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2490 do_close(ngv, FALSE);
2491 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2492 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2493 IoTYPE(nstio) = IoTYPE_SOCKET;
2494 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2495 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2496 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2497 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2500 #if defined(HAS_FCNTL) && defined(F_SETFD)
2501 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2505 len = sizeof saddr; /* EPOC somehow truncates info */
2506 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2509 PUSHp((char *)&saddr, len);
2513 if (ckWARN(WARN_CLOSED))
2514 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2515 SETERRNO(EBADF,SS$_IVCHAN);
2521 DIE(aTHX_ PL_no_sock_func, "accept");
2531 register IO *io = GvIOn(gv);
2533 if (!io || !IoIFP(io))
2536 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2540 if (ckWARN(WARN_CLOSED))
2541 report_evil_fh(gv, io, PL_op->op_type);
2542 SETERRNO(EBADF,SS$_IVCHAN);
2545 DIE(aTHX_ PL_no_sock_func, "shutdown");
2552 return pp_ssockopt();
2554 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2562 int optype = PL_op->op_type;
2565 unsigned int optname;
2571 if (optype == OP_GSOCKOPT)
2572 sv = sv_2mortal(NEWSV(22, 257));
2575 optname = (unsigned int) POPi;
2576 lvl = (unsigned int) POPi;
2580 if (!io || !IoIFP(io))
2583 fd = PerlIO_fileno(IoIFP(io));
2587 (void)SvPOK_only(sv);
2591 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2606 aint = (int)SvIV(sv);
2610 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2619 if (ckWARN(WARN_CLOSED))
2620 report_evil_fh(gv, io, optype);
2621 SETERRNO(EBADF,SS$_IVCHAN);
2626 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2633 return pp_getpeername();
2635 DIE(aTHX_ PL_no_sock_func, "getsockname");
2643 int optype = PL_op->op_type;
2647 register IO *io = GvIOn(gv);
2650 if (!io || !IoIFP(io))
2653 sv = sv_2mortal(NEWSV(22, 257));
2654 (void)SvPOK_only(sv);
2658 fd = PerlIO_fileno(IoIFP(io));
2660 case OP_GETSOCKNAME:
2661 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2664 case OP_GETPEERNAME:
2665 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2667 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2669 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";
2670 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2671 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2672 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2673 sizeof(u_short) + sizeof(struct in_addr))) {
2680 #ifdef BOGUS_GETNAME_RETURN
2681 /* Interactive Unix, getpeername() and getsockname()
2682 does not return valid namelen */
2683 if (len == BOGUS_GETNAME_RETURN)
2684 len = sizeof(struct sockaddr);
2692 if (ckWARN(WARN_CLOSED))
2693 report_evil_fh(gv, io, optype);
2694 SETERRNO(EBADF,SS$_IVCHAN);
2699 DIE(aTHX_ PL_no_sock_func, "getpeername");
2718 if (PL_op->op_flags & OPf_REF) {
2720 if (PL_op->op_type == OP_LSTAT) {
2721 if (PL_laststype != OP_LSTAT)
2722 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2723 if (ckWARN(WARN_IO) && gv != PL_defgv)
2724 Perl_warner(aTHX_ WARN_IO,
2725 "lstat() on filehandle %s", GvENAME(gv));
2726 /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
2730 if (gv != PL_defgv) {
2731 PL_laststype = OP_STAT;
2733 sv_setpv(PL_statname, "");
2734 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2735 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2737 if (PL_laststatval < 0) {
2738 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2739 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2745 if (SvTYPE(sv) == SVt_PVGV) {
2749 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2753 sv_setpv(PL_statname, SvPV(sv,n_a));
2756 PL_laststype = PL_op->op_type;
2757 if (PL_op->op_type == OP_LSTAT)
2758 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2761 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2762 if (PL_laststatval < 0) {
2763 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2764 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
2770 if (gimme != G_ARRAY) {
2771 if (gimme != G_VOID)
2772 XPUSHs(boolSV(max));
2778 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2779 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2780 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2781 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2782 #if Uid_t_size > IVSIZE
2783 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2785 # if Uid_t_sign <= 0
2786 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2788 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2791 #if Gid_t_size > IVSIZE
2792 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2794 # if Gid_t_sign <= 0
2795 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2797 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2800 #ifdef USE_STAT_RDEV
2801 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2803 PUSHs(sv_2mortal(newSVpvn("", 0)));
2805 #if Off_t_size > IVSIZE
2806 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2808 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2811 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2812 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2813 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2815 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2816 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2817 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2819 #ifdef USE_STAT_BLOCKS
2820 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2821 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2823 PUSHs(sv_2mortal(newSVpvn("", 0)));
2824 PUSHs(sv_2mortal(newSVpvn("", 0)));
2834 #if defined(HAS_ACCESS) && defined(R_OK)
2836 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2837 result = access(TOPpx, R_OK);
2852 if (cando(S_IRUSR, 0, &PL_statcache))
2861 #if defined(HAS_ACCESS) && defined(W_OK)
2863 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2864 result = access(TOPpx, W_OK);
2879 if (cando(S_IWUSR, 0, &PL_statcache))
2888 #if defined(HAS_ACCESS) && defined(X_OK)
2890 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2891 result = access(TOPpx, X_OK);
2906 if (cando(S_IXUSR, 0, &PL_statcache))
2915 #ifdef PERL_EFF_ACCESS_R_OK
2917 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2918 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2933 if (cando(S_IRUSR, 1, &PL_statcache))
2942 #ifdef PERL_EFF_ACCESS_W_OK
2944 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2945 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2960 if (cando(S_IWUSR, 1, &PL_statcache))
2969 #ifdef PERL_EFF_ACCESS_X_OK
2971 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2972 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2987 if (cando(S_IXUSR, 1, &PL_statcache))
2994 I32 result = my_stat();
3003 return pp_ftrowned();
3008 I32 result = my_stat();
3012 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3020 I32 result = my_stat();
3024 if (PL_statcache.st_size == 0)
3031 I32 result = my_stat();
3035 #if Off_t_size > IVSIZE
3036 PUSHn(PL_statcache.st_size);
3038 PUSHi(PL_statcache.st_size);
3045 I32 result = my_stat();
3049 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3055 I32 result = my_stat();
3059 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3065 I32 result = my_stat();
3069 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3075 I32 result = my_stat();
3079 if (S_ISSOCK(PL_statcache.st_mode))
3086 I32 result = my_stat();
3090 if (S_ISCHR(PL_statcache.st_mode))
3097 I32 result = my_stat();
3101 if (S_ISBLK(PL_statcache.st_mode))
3108 I32 result = my_stat();
3112 if (S_ISREG(PL_statcache.st_mode))
3119 I32 result = my_stat();
3123 if (S_ISDIR(PL_statcache.st_mode))
3130 I32 result = my_stat();
3134 if (S_ISFIFO(PL_statcache.st_mode))
3141 I32 result = my_lstat();
3145 if (S_ISLNK(PL_statcache.st_mode))
3154 I32 result = my_stat();
3158 if (PL_statcache.st_mode & S_ISUID)
3168 I32 result = my_stat();
3172 if (PL_statcache.st_mode & S_ISGID)
3182 I32 result = my_stat();
3186 if (PL_statcache.st_mode & S_ISVTX)
3197 char *tmps = Nullch;
3200 if (PL_op->op_flags & OPf_REF)
3202 else if (isGV(TOPs))
3204 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3205 gv = (GV*)SvRV(POPs);
3207 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3209 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3210 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3211 else if (tmps && isDIGIT(*tmps))
3215 if (PerlLIO_isatty(fd))
3220 #if defined(atarist) /* this will work with atariST. Configure will
3221 make guesses for other systems. */
3222 # define FILE_base(f) ((f)->_base)
3223 # define FILE_ptr(f) ((f)->_ptr)
3224 # define FILE_cnt(f) ((f)->_cnt)
3225 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3235 register STDCHAR *s;
3242 if (PL_op->op_flags & OPf_REF)
3244 else if (isGV(TOPs))
3246 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3247 gv = (GV*)SvRV(POPs);
3253 if (gv == PL_defgv) {
3255 io = GvIO(PL_statgv);
3258 goto really_filename;
3263 PL_laststatval = -1;
3264 sv_setpv(PL_statname, "");
3265 io = GvIO(PL_statgv);
3267 if (io && IoIFP(io)) {
3268 if (! PerlIO_has_base(IoIFP(io)))
3269 DIE(aTHX_ "-T and -B not implemented on filehandles");
3270 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3271 if (PL_laststatval < 0)
3273 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3274 if (PL_op->op_type == OP_FTTEXT)
3279 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3280 i = PerlIO_getc(IoIFP(io));
3282 (void)PerlIO_ungetc(IoIFP(io),i);
3284 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3286 len = PerlIO_get_bufsiz(IoIFP(io));
3287 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3288 /* sfio can have large buffers - limit to 512 */
3293 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3295 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3297 SETERRNO(EBADF,RMS$_IFI);
3305 PL_laststatval = -1;
3306 sv_setpv(PL_statname, SvPV(sv, n_a));
3307 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3308 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3309 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
3312 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3313 if (PL_laststatval < 0) {
3314 (void)PerlIO_close(fp);
3317 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3318 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3319 (void)PerlIO_close(fp);
3321 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3322 RETPUSHNO; /* special case NFS directories */
3323 RETPUSHYES; /* null file is anything */
3328 /* now scan s to look for textiness */
3329 /* XXX ASCII dependent code */
3331 #if defined(DOSISH) || defined(USEMYBINMODE)
3332 /* ignore trailing ^Z on short files */
3333 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3337 for (i = 0; i < len; i++, s++) {
3338 if (!*s) { /* null never allowed in text */
3343 else if (!(isPRINT(*s) || isSPACE(*s)))
3346 else if (*s & 128) {
3348 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3351 /* utf8 characters don't count as odd */
3352 if (UTF8_IS_START(*s)) {
3353 int ulen = UTF8SKIP(s);
3354 if (ulen < len - i) {
3356 for (j = 1; j < ulen; j++) {
3357 if (!UTF8_IS_CONTINUATION(s[j]))
3360 --ulen; /* loop does extra increment */
3370 *s != '\n' && *s != '\r' && *s != '\b' &&
3371 *s != '\t' && *s != '\f' && *s != 27)
3376 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3401 if( !tmps || !*tmps ) {
3402 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3403 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3405 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3410 deprecate("chdir('') or chdir(undef) as chdir()");
3411 tmps = SvPV(*svp, n_a);
3415 TAINT_PROPER("chdir");
3420 TAINT_PROPER("chdir");
3421 PUSHi( PerlDir_chdir(tmps) >= 0 );
3423 /* Clear the DEFAULT element of ENV so we'll get the new value
3425 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3433 dSP; dMARK; dTARGET;
3434 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3440 DIE(aTHX_ PL_no_func, "chown");
3450 TAINT_PROPER("chroot");
3451 PUSHi( chroot(tmps) >= 0 );
3454 DIE(aTHX_ PL_no_func, "chroot");
3460 dSP; dMARK; dTARGET;
3462 value = (I32)apply(PL_op->op_type, MARK, SP);
3470 dSP; dMARK; dTARGET;
3472 value = (I32)apply(PL_op->op_type, MARK, SP);
3480 dSP; dMARK; dTARGET;
3482 value = (I32)apply(PL_op->op_type, MARK, SP);
3494 char *tmps2 = POPpx;
3495 char *tmps = SvPV(TOPs, n_a);
3496 TAINT_PROPER("rename");
3498 anum = PerlLIO_rename(tmps, tmps2);
3500 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3501 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3504 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3505 (void)UNLINK(tmps2);
3506 if (!(anum = link(tmps, tmps2)))
3507 anum = UNLINK(tmps);
3520 char *tmps2 = POPpx;
3521 char *tmps = SvPV(TOPs, n_a);
3522 TAINT_PROPER("link");
3523 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3526 DIE(aTHX_ PL_no_func, "link");
3535 char *tmps2 = POPpx;
3536 char *tmps = SvPV(TOPs, n_a);
3537 TAINT_PROPER("symlink");
3538 SETi( symlink(tmps, tmps2) >= 0 );
3541 DIE(aTHX_ PL_no_func, "symlink");
3551 char buf[MAXPATHLEN];
3555 #ifndef INCOMPLETE_TAINTS
3559 len = readlink(tmps, buf, sizeof(buf) - 1);
3567 RETSETUNDEF; /* just pretend it's a normal file */
3571 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3573 S_dooneliner(pTHX_ char *cmd, char *filename)
3575 char *save_filename = filename;
3581 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3582 strcpy(cmdline, cmd);
3583 strcat(cmdline, " ");
3584 for (s = cmdline + strlen(cmdline); *filename; ) {
3589 myfp = PerlProc_popen(cmdline, "r");
3593 SV *tmpsv = sv_newmortal();
3594 /* Need to save/restore 'PL_rs' ?? */
3595 s = sv_gets(tmpsv, myfp, 0);
3596 (void)PerlProc_pclose(myfp);
3600 #ifdef HAS_SYS_ERRLIST
3605 /* you don't see this */
3607 #ifdef HAS_SYS_ERRLIST
3615 if (instr(s, errmsg)) {
3622 #define EACCES EPERM
3624 if (instr(s, "cannot make"))
3625 SETERRNO(EEXIST,RMS$_FEX);
3626 else if (instr(s, "existing file"))
3627 SETERRNO(EEXIST,RMS$_FEX);
3628 else if (instr(s, "ile exists"))
3629 SETERRNO(EEXIST,RMS$_FEX);
3630 else if (instr(s, "non-exist"))
3631 SETERRNO(ENOENT,RMS$_FNF);
3632 else if (instr(s, "does not exist"))
3633 SETERRNO(ENOENT,RMS$_FNF);
3634 else if (instr(s, "not empty"))
3635 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3636 else if (instr(s, "cannot access"))
3637 SETERRNO(EACCES,RMS$_PRV);
3639 SETERRNO(EPERM,RMS$_PRV);
3642 else { /* some mkdirs return no failure indication */
3643 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3644 if (PL_op->op_type == OP_RMDIR)
3649 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3674 tmps = SvPV(TOPs, len);
3675 /* Different operating and file systems take differently to
3676 * trailing slashes. According to POSIX 1003.1 1996 Edition
3677 * any number of trailing slashes should be allowed.
3678 * Thusly we snip them away so that even non-conforming
3679 * systems are happy. */
3680 /* We should probably do this "filtering" for all
3681 * the functions that expect (potentially) directory names:
3682 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3683 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3684 if (len > 1 && tmps[len-1] == '/') {
3685 while (tmps[len] == '/' && len > 1)
3687 tmps = savepvn(tmps, len);
3691 TAINT_PROPER("mkdir");
3693 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3695 SETi( dooneliner("mkdir", tmps) );
3696 oldumask = PerlLIO_umask(0);
3697 PerlLIO_umask(oldumask);
3698 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3712 TAINT_PROPER("rmdir");
3714 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3716 XPUSHi( dooneliner("rmdir", tmps) );
3721 /* Directory calls. */
3725 #if defined(Direntry_t) && defined(HAS_READDIR)
3728 char *dirname = POPpx;
3730 register IO *io = GvIOn(gv);
3736 PerlDir_close(IoDIRP(io));
3737 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3743 SETERRNO(EBADF,RMS$_DIR);
3746 DIE(aTHX_ PL_no_dir_func, "opendir");
3752 #if defined(Direntry_t) && defined(HAS_READDIR)
3754 #if !defined(I_DIRENT) && !defined(VMS)
3755 Direntry_t *readdir (DIR *);
3757 register Direntry_t *dp;
3759 register IO *io = GvIOn(gv);
3762 if (!io || !IoDIRP(io))
3765 if (GIMME == G_ARRAY) {
3767 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3769 sv = newSVpvn(dp->d_name, dp->d_namlen);
3771 sv = newSVpv(dp->d_name, 0);
3773 #ifndef INCOMPLETE_TAINTS
3774 if (!(IoFLAGS(io) & IOf_UNTAINT))
3777 XPUSHs(sv_2mortal(sv));
3781 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3784 sv = newSVpvn(dp->d_name, dp->d_namlen);
3786 sv = newSVpv(dp->d_name, 0);
3788 #ifndef INCOMPLETE_TAINTS
3789 if (!(IoFLAGS(io) & IOf_UNTAINT))
3792 XPUSHs(sv_2mortal(sv));
3798 SETERRNO(EBADF,RMS$_ISI);
3799 if (GIMME == G_ARRAY)
3804 DIE(aTHX_ PL_no_dir_func, "readdir");
3810 #if defined(HAS_TELLDIR) || defined(telldir)
3812 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3813 /* XXX netbsd still seemed to.
3814 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3815 --JHI 1999-Feb-02 */
3816 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3817 long telldir (DIR *);
3820 register IO *io = GvIOn(gv);
3822 if (!io || !IoDIRP(io))
3825 PUSHi( PerlDir_tell(IoDIRP(io)) );
3829 SETERRNO(EBADF,RMS$_ISI);
3832 DIE(aTHX_ PL_no_dir_func, "telldir");
3838 #if defined(HAS_SEEKDIR) || defined(seekdir)
3842 register IO *io = GvIOn(gv);
3844 if (!io || !IoDIRP(io))
3847 (void)PerlDir_seek(IoDIRP(io), along);
3852 SETERRNO(EBADF,RMS$_ISI);
3855 DIE(aTHX_ PL_no_dir_func, "seekdir");
3861 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3864 register IO *io = GvIOn(gv);
3866 if (!io || !IoDIRP(io))
3869 (void)PerlDir_rewind(IoDIRP(io));
3873 SETERRNO(EBADF,RMS$_ISI);
3876 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3882 #if defined(Direntry_t) && defined(HAS_READDIR)
3885 register IO *io = GvIOn(gv);
3887 if (!io || !IoDIRP(io))
3890 #ifdef VOID_CLOSEDIR
3891 PerlDir_close(IoDIRP(io));
3893 if (PerlDir_close(IoDIRP(io)) < 0) {
3894 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3903 SETERRNO(EBADF,RMS$_IFI);
3906 DIE(aTHX_ PL_no_dir_func, "closedir");
3910 /* Process control. */
3920 PERL_FLUSHALL_FOR_CHILD;
3921 childpid = PerlProc_fork();
3926 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3927 SvREADONLY_off(GvSV(tmpgv));
3928 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3929 SvREADONLY_on(GvSV(tmpgv));
3931 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3936 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3941 PERL_FLUSHALL_FOR_CHILD;
3942 childpid = PerlProc_fork();
3948 DIE(aTHX_ PL_no_func, "fork");
3955 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3960 #ifdef PERL_OLD_SIGNALS
3961 childpid = wait4pid(-1, &argflags, 0);
3963 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3967 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3968 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3969 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3971 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3976 DIE(aTHX_ PL_no_func, "wait");
3982 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3990 #ifdef PERL_OLD_SIGNALS
3991 childpid = wait4pid(childpid, &argflags, optype);
3993 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
3997 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3998 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3999 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4001 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4006 DIE(aTHX_ PL_no_func, "waitpid");
4012 dSP; dMARK; dORIGMARK; dTARGET;
4019 if (SP - MARK == 1) {
4021 (void)SvPV_nolen(TOPs); /* stringify for taint check */
4023 TAINT_PROPER("system");
4026 PERL_FLUSHALL_FOR_CHILD;
4027 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4031 Sigsave_t ihand,qhand; /* place to save signals during system() */
4035 if (PL_op->op_flags & OPf_STACKED)
4037 else if (SP - MARK != 1)
4039 if (cmd && *(SvPV_nolen(cmd)) != '/')
4043 if (PerlProc_pipe(pp) >= 0)
4045 while ((childpid = PerlProc_fork()) == -1) {
4046 if (errno != EAGAIN) {
4051 PerlLIO_close(pp[0]);
4052 PerlLIO_close(pp[1]);
4060 PerlLIO_close(pp[1]);
4062 rsignal_save(SIGINT, SIG_IGN, &ihand);
4063 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4066 result = wait4pid(childpid, &status, 0);
4067 } while (result == -1 && errno == EINTR);
4069 (void)rsignal_restore(SIGINT, &ihand);
4070 (void)rsignal_restore(SIGQUIT, &qhand);
4072 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4073 do_execfree(); /* free any memory child malloced on fork */
4079 while (n < sizeof(int)) {
4080 n1 = PerlLIO_read(pp[0],
4081 (void*)(((char*)&errkid)+n),
4087 PerlLIO_close(pp[0]);
4088 if (n) { /* Error */
4089 if (n != sizeof(int))
4090 DIE(aTHX_ "panic: kid popen errno read");
4091 errno = errkid; /* Propagate errno from kid */
4092 STATUS_CURRENT = -1;
4095 PUSHi(STATUS_CURRENT);
4099 PerlLIO_close(pp[0]);
4100 #if defined(HAS_FCNTL) && defined(F_SETFD)
4101 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4105 if (PL_op->op_flags & OPf_STACKED) {
4106 SV *really = *++MARK;
4107 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4109 else if (SP - MARK != 1)
4110 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4112 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4115 #else /* ! FORK or VMS or OS/2 */
4118 if (PL_op->op_flags & OPf_STACKED) {
4119 SV *really = *++MARK;
4120 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4122 else if (SP - MARK != 1)
4123 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4125 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4127 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4129 STATUS_NATIVE_SET(value);
4132 PUSHi(result ? value : STATUS_CURRENT);
4133 #endif /* !FORK or VMS */
4139 dSP; dMARK; dORIGMARK; dTARGET;
4143 PERL_FLUSHALL_FOR_CHILD;
4144 if (PL_op->op_flags & OPf_STACKED) {
4145 SV *really = *++MARK;
4146 value = (I32)do_aexec(really, MARK, SP);
4148 else if (SP - MARK != 1)
4150 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4154 (void ) do_aspawn(Nullsv, MARK, SP);
4158 value = (I32)do_aexec(Nullsv, MARK, SP);
4163 (void)SvPV_nolen(*SP); /* stringify for taint check */
4165 TAINT_PROPER("exec");
4168 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4171 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4174 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4187 dSP; dMARK; dTARGET;
4189 value = (I32)apply(PL_op->op_type, MARK, SP);
4194 DIE(aTHX_ PL_no_func, "kill");
4202 XPUSHi( getppid() );
4205 DIE(aTHX_ PL_no_func, "getppid");
4221 pgrp = (I32)BSD_GETPGRP(pid);
4223 if (pid != 0 && pid != PerlProc_getpid())
4224 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4230 DIE(aTHX_ PL_no_func, "getpgrp()");
4249 TAINT_PROPER("setpgrp");
4251 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4253 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4254 || (pid != 0 && pid != PerlProc_getpid()))
4256 DIE(aTHX_ "setpgrp can't take arguments");
4258 SETi( setpgrp() >= 0 );
4259 #endif /* USE_BSDPGRP */
4262 DIE(aTHX_ PL_no_func, "setpgrp()");
4268 #ifdef HAS_GETPRIORITY
4272 SETi( getpriority(which, who) );
4275 DIE(aTHX_ PL_no_func, "getpriority()");
4281 #ifdef HAS_SETPRIORITY
4286 TAINT_PROPER("setpriority");
4287 SETi( setpriority(which, who, niceval) >= 0 );
4290 DIE(aTHX_ PL_no_func, "setpriority()");
4300 XPUSHn( time(Null(Time_t*)) );
4302 XPUSHi( time(Null(Time_t*)) );
4307 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4308 to HZ. Probably. For now, assume that if the system
4309 defines HZ, it does so correctly. (Will this break
4311 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4312 it's supported. --AD 9/96.
4333 (void)PerlProc_times(&PL_timesbuf);
4335 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4336 /* struct tms, though same data */
4340 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4341 if (GIMME == G_ARRAY) {
4342 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4343 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4344 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4348 DIE(aTHX_ "times not implemented");
4349 #endif /* HAS_TIMES */
4362 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4363 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4364 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4370 when = (Time_t)SvNVx(POPs);
4372 when = (Time_t)SvIVx(POPs);
4375 if (PL_op->op_type == OP_LOCALTIME)
4376 tmbuf = localtime(&when);
4378 tmbuf = gmtime(&when);
4380 if (GIMME != G_ARRAY) {
4386 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4387 dayname[tmbuf->tm_wday],
4388 monname[tmbuf->tm_mon],
4393 tmbuf->tm_year + 1900);
4394 PUSHs(sv_2mortal(tsv));
4399 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4400 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4401 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4402 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4403 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4404 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4405 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4406 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4407 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4418 anum = alarm((unsigned int)anum);
4425 DIE(aTHX_ PL_no_func, "alarm");
4436 (void)time(&lasttime);
4441 PerlProc_sleep((unsigned int)duration);
4444 XPUSHi(when - lasttime);
4448 /* Shared memory. */
4462 return pp_shmwrite();
4467 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4468 dSP; dMARK; dTARGET;
4469 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4478 /* Message passing. */
4492 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4493 dSP; dMARK; dTARGET;
4494 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4505 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4506 dSP; dMARK; dTARGET;
4507 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4520 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4521 dSP; dMARK; dTARGET;
4522 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4529 DIE(aTHX_ "System V IPC is not implemented on this machine");
4535 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4536 dSP; dMARK; dTARGET;
4537 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4545 PUSHp(zero_but_true, ZBTLEN);
4555 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4556 dSP; dMARK; dTARGET;
4557 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4566 /* Get system info. */
4570 #ifdef HAS_GETHOSTBYNAME
4571 return pp_ghostent();
4573 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4579 #ifdef HAS_GETHOSTBYADDR
4580 return pp_ghostent();
4582 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4588 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4590 I32 which = PL_op->op_type;
4591 register char **elem;
4593 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4594 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4595 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
4596 struct hostent *PerlSock_gethostent(void);
4598 struct hostent *hent;
4603 if (which == OP_GHBYNAME)
4604 #ifdef HAS_GETHOSTBYNAME
4605 hent = PerlSock_gethostbyname(POPpbytex);
4607 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4609 else if (which == OP_GHBYADDR) {
4610 #ifdef HAS_GETHOSTBYADDR
4611 int addrtype = POPi;
4614 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4616 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4618 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4622 #ifdef HAS_GETHOSTENT
4623 hent = PerlSock_gethostent();
4625 DIE(aTHX_ PL_no_sock_func, "gethostent");
4628 #ifdef HOST_NOT_FOUND
4630 STATUS_NATIVE_SET(h_errno);
4633 if (GIMME != G_ARRAY) {
4634 PUSHs(sv = sv_newmortal());
4636 if (which == OP_GHBYNAME) {
4638 sv_setpvn(sv, hent->h_addr, hent->h_length);
4641 sv_setpv(sv, (char*)hent->h_name);
4647 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4648 sv_setpv(sv, (char*)hent->h_name);
4649 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4650 for (elem = hent->h_aliases; elem && *elem; elem++) {
4651 sv_catpv(sv, *elem);
4653 sv_catpvn(sv, " ", 1);
4655 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4656 sv_setiv(sv, (IV)hent->h_addrtype);
4657 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4658 len = hent->h_length;
4659 sv_setiv(sv, (IV)len);
4661 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4662 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4663 sv_setpvn(sv, *elem, len);
4666 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4668 sv_setpvn(sv, hent->h_addr, len);
4673 DIE(aTHX_ PL_no_sock_func, "gethostent");
4679 #ifdef HAS_GETNETBYNAME
4680 return pp_gnetent();
4682 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4688 #ifdef HAS_GETNETBYADDR
4689 return pp_gnetent();
4691 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4697 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4699 I32 which = PL_op->op_type;
4700 register char **elem;
4702 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4703 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4704 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4705 struct netent *PerlSock_getnetent(void);
4707 struct netent *nent;
4710 if (which == OP_GNBYNAME)
4711 #ifdef HAS_GETNETBYNAME
4712 nent = PerlSock_getnetbyname(POPpbytex);
4714 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4716 else if (which == OP_GNBYADDR) {
4717 #ifdef HAS_GETNETBYADDR
4718 int addrtype = POPi;
4719 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4720 nent = PerlSock_getnetbyaddr(addr, addrtype);
4722 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4726 #ifdef HAS_GETNETENT
4727 nent = PerlSock_getnetent();
4729 DIE(aTHX_ PL_no_sock_func, "getnetent");
4733 if (GIMME != G_ARRAY) {
4734 PUSHs(sv = sv_newmortal());
4736 if (which == OP_GNBYNAME)
4737 sv_setiv(sv, (IV)nent->n_net);
4739 sv_setpv(sv, nent->n_name);
4745 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4746 sv_setpv(sv, nent->n_name);
4747 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4748 for (elem = nent->n_aliases; elem && *elem; elem++) {
4749 sv_catpv(sv, *elem);
4751 sv_catpvn(sv, " ", 1);
4753 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4754 sv_setiv(sv, (IV)nent->n_addrtype);
4755 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4756 sv_setiv(sv, (IV)nent->n_net);
4761 DIE(aTHX_ PL_no_sock_func, "getnetent");
4767 #ifdef HAS_GETPROTOBYNAME
4768 return pp_gprotoent();
4770 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4776 #ifdef HAS_GETPROTOBYNUMBER
4777 return pp_gprotoent();
4779 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4785 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4787 I32 which = PL_op->op_type;
4788 register char **elem;
4790 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4791 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4792 struct protoent *PerlSock_getprotobynumber(int);
4793 struct protoent *PerlSock_getprotoent(void);
4795 struct protoent *pent;
4798 if (which == OP_GPBYNAME)
4799 #ifdef HAS_GETPROTOBYNAME
4800 pent = PerlSock_getprotobyname(POPpbytex);
4802 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4804 else if (which == OP_GPBYNUMBER)
4805 #ifdef HAS_GETPROTOBYNUMBER
4806 pent = PerlSock_getprotobynumber(POPi);
4808 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4811 #ifdef HAS_GETPROTOENT
4812 pent = PerlSock_getprotoent();
4814 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4818 if (GIMME != G_ARRAY) {
4819 PUSHs(sv = sv_newmortal());
4821 if (which == OP_GPBYNAME)
4822 sv_setiv(sv, (IV)pent->p_proto);
4824 sv_setpv(sv, pent->p_name);
4830 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4831 sv_setpv(sv, pent->p_name);
4832 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4833 for (elem = pent->p_aliases; elem && *elem; elem++) {
4834 sv_catpv(sv, *elem);
4836 sv_catpvn(sv, " ", 1);
4838 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4839 sv_setiv(sv, (IV)pent->p_proto);
4844 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4850 #ifdef HAS_GETSERVBYNAME
4851 return pp_gservent();
4853 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4859 #ifdef HAS_GETSERVBYPORT
4860 return pp_gservent();
4862 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4868 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4870 I32 which = PL_op->op_type;
4871 register char **elem;
4873 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4874 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4875 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4876 struct servent *PerlSock_getservent(void);
4878 struct servent *sent;
4881 if (which == OP_GSBYNAME) {
4882 #ifdef HAS_GETSERVBYNAME
4883 char *proto = POPpbytex;
4884 char *name = POPpbytex;
4886 if (proto && !*proto)
4889 sent = PerlSock_getservbyname(name, proto);
4891 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4894 else if (which == OP_GSBYPORT) {
4895 #ifdef HAS_GETSERVBYPORT
4896 char *proto = POPpbytex;
4897 unsigned short port = POPu;
4900 port = PerlSock_htons(port);
4902 sent = PerlSock_getservbyport(port, proto);
4904 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4908 #ifdef HAS_GETSERVENT
4909 sent = PerlSock_getservent();
4911 DIE(aTHX_ PL_no_sock_func, "getservent");
4915 if (GIMME != G_ARRAY) {
4916 PUSHs(sv = sv_newmortal());
4918 if (which == OP_GSBYNAME) {
4920 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4922 sv_setiv(sv, (IV)(sent->s_port));
4926 sv_setpv(sv, sent->s_name);
4932 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4933 sv_setpv(sv, sent->s_name);
4934 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4935 for (elem = sent->s_aliases; elem && *elem; elem++) {
4936 sv_catpv(sv, *elem);
4938 sv_catpvn(sv, " ", 1);
4940 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4942 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4944 sv_setiv(sv, (IV)(sent->s_port));
4946 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4947 sv_setpv(sv, sent->s_proto);
4952 DIE(aTHX_ PL_no_sock_func, "getservent");
4958 #ifdef HAS_SETHOSTENT
4960 PerlSock_sethostent(TOPi);
4963 DIE(aTHX_ PL_no_sock_func, "sethostent");
4969 #ifdef HAS_SETNETENT
4971 PerlSock_setnetent(TOPi);
4974 DIE(aTHX_ PL_no_sock_func, "setnetent");
4980 #ifdef HAS_SETPROTOENT
4982 PerlSock_setprotoent(TOPi);
4985 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4991 #ifdef HAS_SETSERVENT
4993 PerlSock_setservent(TOPi);
4996 DIE(aTHX_ PL_no_sock_func, "setservent");
5002 #ifdef HAS_ENDHOSTENT
5004 PerlSock_endhostent();
5008 DIE(aTHX_ PL_no_sock_func, "endhostent");
5014 #ifdef HAS_ENDNETENT
5016 PerlSock_endnetent();
5020 DIE(aTHX_ PL_no_sock_func, "endnetent");
5026 #ifdef HAS_ENDPROTOENT
5028 PerlSock_endprotoent();
5032 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5038 #ifdef HAS_ENDSERVENT
5040 PerlSock_endservent();
5044 DIE(aTHX_ PL_no_sock_func, "endservent");
5053 DIE(aTHX_ PL_no_func, "getpwnam");
5062 DIE(aTHX_ PL_no_func, "getpwuid");
5070 I32 which = PL_op->op_type;
5073 struct passwd *pwent = NULL;
5075 * We currently support only the SysV getsp* shadow password interface.
5076 * The interface is declared in <shadow.h> and often one needs to link
5077 * with -lsecurity or some such.
5078 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5081 * AIX getpwnam() is clever enough to return the encrypted password
5082 * only if the caller (euid?) is root.
5084 * There are at least two other shadow password APIs. Many platforms
5085 * seem to contain more than one interface for accessing the shadow
5086 * password databases, possibly for compatibility reasons.
5087 * The getsp*() is by far he simplest one, the other two interfaces
5088 * are much more complicated, but also very similar to each other.
5093 * struct pr_passwd *getprpw*();
5094 * The password is in
5095 * char getprpw*(...).ufld.fd_encrypt[]
5096 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5101 * struct es_passwd *getespw*();
5102 * The password is in
5103 * char *(getespw*(...).ufld.fd_encrypt)
5104 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5106 * Mention I_PROT here so that Configure probes for it.
5108 * In HP-UX for getprpw*() the manual page claims that one should include
5109 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5110 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5111 * and pp_sys.c already includes <shadow.h> if there is such.
5113 * Note that <sys/security.h> is already probed for, but currently
5114 * it is only included in special cases.
5116 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5117 * be preferred interface, even though also the getprpw*() interface
5118 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5119 * One also needs to call set_auth_parameters() in main() before
5120 * doing anything else, whether one is using getespw*() or getprpw*().
5122 * Note that accessing the shadow databases can be magnitudes
5123 * slower than accessing the standard databases.
5130 pwent = getpwnam(POPpbytex);
5133 pwent = getpwuid((Uid_t)POPi);
5136 # ifdef HAS_GETPWENT
5139 DIE(aTHX_ PL_no_func, "getpwent");
5145 if (GIMME != G_ARRAY) {
5146 PUSHs(sv = sv_newmortal());
5148 if (which == OP_GPWNAM)
5149 # if Uid_t_sign <= 0
5150 sv_setiv(sv, (IV)pwent->pw_uid);
5152 sv_setuv(sv, (UV)pwent->pw_uid);
5155 sv_setpv(sv, pwent->pw_name);
5161 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5162 sv_setpv(sv, pwent->pw_name);
5164 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5166 /* If we have getspnam(), we try to dig up the shadow
5167 * password. If we are underprivileged, the shadow
5168 * interface will set the errno to EACCES or similar,
5169 * and return a null pointer. If this happens, we will
5170 * use the dummy password (usually "*" or "x") from the
5171 * standard password database.
5173 * In theory we could skip the shadow call completely
5174 * if euid != 0 but in practice we cannot know which
5175 * security measures are guarding the shadow databases
5176 * on a random platform.
5178 * Resist the urge to use additional shadow interfaces.
5179 * Divert the urge to writing an extension instead.
5182 # ifdef HAS_GETSPNAM
5184 struct spwd *spwent;
5185 int saverrno; /* Save and restore errno so that
5186 * underprivileged attempts seem
5187 * to have never made the unsccessful
5188 * attempt to retrieve the shadow password. */
5191 spwent = getspnam(pwent->pw_name);
5193 if (spwent && spwent->sp_pwdp)
5194 sv_setpv(sv, spwent->sp_pwdp);
5198 if (!SvPOK(sv)) /* Use the standard password, then. */
5199 sv_setpv(sv, pwent->pw_passwd);
5202 # ifndef INCOMPLETE_TAINTS
5203 /* passwd is tainted because user himself can diddle with it.
5204 * admittedly not much and in a very limited way, but nevertheless. */
5208 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5209 # if Uid_t_sign <= 0
5210 sv_setiv(sv, (IV)pwent->pw_uid);
5212 sv_setuv(sv, (UV)pwent->pw_uid);
5215 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5216 # if Uid_t_sign <= 0
5217 sv_setiv(sv, (IV)pwent->pw_gid);
5219 sv_setuv(sv, (UV)pwent->pw_gid);
5221 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5222 * because of the poor interface of the Perl getpw*(),
5223 * not because there's some standard/convention saying so.
5224 * A better interface would have been to return a hash,
5225 * but we are accursed by our history, alas. --jhi. */
5226 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5228 sv_setiv(sv, (IV)pwent->pw_change);
5231 sv_setiv(sv, (IV)pwent->pw_quota);
5234 sv_setpv(sv, pwent->pw_age);
5239 /* pw_class and pw_comment are mutually exclusive--.
5240 * see the above note for pw_change, pw_quota, and pw_age. */
5241 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5243 sv_setpv(sv, pwent->pw_class);
5246 sv_setpv(sv, pwent->pw_comment);
5250 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5252 sv_setpv(sv, pwent->pw_gecos);
5254 # ifndef INCOMPLETE_TAINTS
5255 /* pw_gecos is tainted because user himself can diddle with it. */
5259 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5260 sv_setpv(sv, pwent->pw_dir);
5262 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5263 sv_setpv(sv, pwent->pw_shell);
5264 # ifndef INCOMPLETE_TAINTS
5265 /* pw_shell is tainted because user himself can diddle with it. */
5270 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5271 sv_setiv(sv, (IV)pwent->pw_expire);
5276 DIE(aTHX_ PL_no_func, "getpwent");
5282 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5287 DIE(aTHX_ PL_no_func, "setpwent");
5293 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5298 DIE(aTHX_ PL_no_func, "endpwent");
5307 DIE(aTHX_ PL_no_func, "getgrnam");
5316 DIE(aTHX_ PL_no_func, "getgrgid");
5324 I32 which = PL_op->op_type;
5325 register char **elem;
5327 struct group *grent;
5330 if (which == OP_GGRNAM)
5331 grent = (struct group *)getgrnam(POPpbytex);
5332 else if (which == OP_GGRGID)
5333 grent = (struct group *)getgrgid(POPi);
5336 grent = (struct group *)getgrent();
5338 DIE(aTHX_ PL_no_func, "getgrent");
5342 if (GIMME != G_ARRAY) {
5343 PUSHs(sv = sv_newmortal());
5345 if (which == OP_GGRNAM)
5346 sv_setiv(sv, (IV)grent->gr_gid);
5348 sv_setpv(sv, grent->gr_name);
5354 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5355 sv_setpv(sv, grent->gr_name);
5357 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5359 sv_setpv(sv, grent->gr_passwd);
5362 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5363 sv_setiv(sv, (IV)grent->gr_gid);
5365 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5366 for (elem = grent->gr_mem; elem && *elem; elem++) {
5367 sv_catpv(sv, *elem);
5369 sv_catpvn(sv, " ", 1);
5375 DIE(aTHX_ PL_no_func, "getgrent");
5381 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5386 DIE(aTHX_ PL_no_func, "setgrent");
5392 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5397 DIE(aTHX_ PL_no_func, "endgrent");
5407 if (!(tmps = PerlProc_getlogin()))
5409 PUSHp(tmps, strlen(tmps));
5412 DIE(aTHX_ PL_no_func, "getlogin");
5416 /* Miscellaneous. */
5421 dSP; dMARK; dORIGMARK; dTARGET;
5422 register I32 items = SP - MARK;
5423 unsigned long a[20];
5429 while (++MARK <= SP) {
5430 if (SvTAINTED(*MARK)) {
5436 TAINT_PROPER("syscall");
5439 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5440 * or where sizeof(long) != sizeof(char*). But such machines will
5441 * not likely have syscall implemented either, so who cares?
5443 while (++MARK <= SP) {
5444 if (SvNIOK(*MARK) || !i)
5445 a[i++] = SvIV(*MARK);
5446 else if (*MARK == &PL_sv_undef)
5449 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5455 DIE(aTHX_ "Too many args to syscall");
5457 DIE(aTHX_ "Too few args to syscall");
5459 retval = syscall(a[0]);
5462 retval = syscall(a[0],a[1]);
5465 retval = syscall(a[0],a[1],a[2]);
5468 retval = syscall(a[0],a[1],a[2],a[3]);
5471 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5474 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5477 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5480 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5484 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5487 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5490 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5494 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5498 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],
5503 a[10],a[11],a[12],a[13]);
5505 #endif /* atarist */
5511 DIE(aTHX_ PL_no_func, "syscall");
5515 #ifdef FCNTL_EMULATE_FLOCK
5517 /* XXX Emulate flock() with fcntl().
5518 What's really needed is a good file locking module.
5522 fcntl_emulate_flock(int fd, int operation)
5526 switch (operation & ~LOCK_NB) {
5528 flock.l_type = F_RDLCK;
5531 flock.l_type = F_WRLCK;
5534 flock.l_type = F_UNLCK;
5540 flock.l_whence = SEEK_SET;
5541 flock.l_start = flock.l_len = (Off_t)0;
5543 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5546 #endif /* FCNTL_EMULATE_FLOCK */
5548 #ifdef LOCKF_EMULATE_FLOCK
5550 /* XXX Emulate flock() with lockf(). This is just to increase
5551 portability of scripts. The calls are not completely
5552 interchangeable. What's really needed is a good file
5556 /* The lockf() constants might have been defined in <unistd.h>.
5557 Unfortunately, <unistd.h> causes troubles on some mixed
5558 (BSD/POSIX) systems, such as SunOS 4.1.3.
5560 Further, the lockf() constants aren't POSIX, so they might not be
5561 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5562 just stick in the SVID values and be done with it. Sigh.
5566 # define F_ULOCK 0 /* Unlock a previously locked region */
5569 # define F_LOCK 1 /* Lock a region for exclusive use */
5572 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5575 # define F_TEST 3 /* Test a region for other processes locks */
5579 lockf_emulate_flock(int fd, int operation)
5585 /* flock locks entire file so for lockf we need to do the same */
5587 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5588 if (pos > 0) /* is seekable and needs to be repositioned */
5589 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5590 pos = -1; /* seek failed, so don't seek back afterwards */
5593 switch (operation) {
5595 /* LOCK_SH - get a shared lock */
5597 /* LOCK_EX - get an exclusive lock */
5599 i = lockf (fd, F_LOCK, 0);
5602 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5603 case LOCK_SH|LOCK_NB:
5604 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5605 case LOCK_EX|LOCK_NB:
5606 i = lockf (fd, F_TLOCK, 0);
5608 if ((errno == EAGAIN) || (errno == EACCES))
5609 errno = EWOULDBLOCK;
5612 /* LOCK_UN - unlock (non-blocking is a no-op) */
5614 case LOCK_UN|LOCK_NB:
5615 i = lockf (fd, F_ULOCK, 0);
5618 /* Default - can't decipher operation */
5625 if (pos > 0) /* need to restore position of the handle */
5626 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5631 #endif /* LOCKF_EMULATE_FLOCK */