3 * Copyright (c) 1991-2001, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
18 #define PERL_IN_PP_SYS_C
22 /* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
24 * The API is from SysV.
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
31 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
40 extern "C" int syscall(unsigned long,...);
45 # include <sys/wait.h>
49 # include <sys/resource.h>
58 # include <sys/select.h>
62 /* XXX Configure test needed.
63 h_errno might not be a simple 'int', especially for multi-threaded
64 applications, see "extern int errno in perl.h". Creating such
65 a test requires taking into account the differences between
66 compiling multithreaded and singlethreaded ($ccflags et al).
67 HOST_NOT_FOUND is typically defined in <netdb.h>.
69 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
78 struct passwd *getpwnam (char *);
79 struct passwd *getpwuid (Uid_t);
83 struct passwd *getpwent (void);
91 struct group *getgrnam (char *);
92 struct group *getgrgid (Gid_t);
95 struct group *getgrent (void);
100 # if defined(_MSC_VER) || defined(__MINGW32__)
101 # include <sys/utime.h>
108 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
111 # define my_chsize PerlLIO_chsize
116 #else /* no flock() */
118 /* fcntl.h might not have been included, even if it exists, because
119 the current Configure only sets I_FCNTL if it's needed to pick up
120 the *_OK constants. Make sure it has been included before testing
121 the fcntl() locking constants. */
122 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
126 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
127 # define FLOCK fcntl_emulate_flock
128 # define FCNTL_EMULATE_FLOCK
129 # else /* no flock() or fcntl(F_SETLK,...) */
131 # define FLOCK lockf_emulate_flock
132 # define LOCKF_EMULATE_FLOCK
134 # endif /* no flock() or fcntl(F_SETLK,...) */
137 static int FLOCK (int, int);
140 * These are the flock() constants. Since this sytems doesn't have
141 * flock(), the values of the constants are probably not available.
155 # endif /* emulating flock() */
157 #endif /* no flock() */
160 static char zero_but_true[ZBTLEN + 1] = "0 but true";
162 #if defined(I_SYS_ACCESS) && !defined(R_OK)
163 # include <sys/access.h>
166 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
167 # define FD_CLOEXEC 1 /* NeXT needs this */
170 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
171 #undef PERL_EFF_ACCESS_W_OK
172 #undef PERL_EFF_ACCESS_X_OK
174 /* F_OK unused: if stat() cannot find it... */
176 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
177 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
178 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
179 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
180 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
183 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
184 # ifdef I_SYS_SECURITY
185 # include <sys/security.h>
189 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
190 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
191 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
194 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
195 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
196 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
200 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
202 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
203 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
204 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
207 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
208 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
209 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
212 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
214 Uid_t ruid = getuid();
215 Uid_t euid = geteuid();
216 Gid_t rgid = getgid();
217 Gid_t egid = getegid();
221 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
222 Perl_croak(aTHX_ "switching effective uid is not implemented");
225 if (setreuid(euid, ruid))
228 if (setresuid(euid, ruid, (Uid_t)-1))
231 Perl_croak(aTHX_ "entering effective uid failed");
234 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
235 Perl_croak(aTHX_ "switching effective gid is not implemented");
238 if (setregid(egid, rgid))
241 if (setresgid(egid, rgid, (Gid_t)-1))
244 Perl_croak(aTHX_ "entering effective gid failed");
247 res = access(path, mode);
250 if (setreuid(ruid, euid))
253 if (setresuid(ruid, euid, (Uid_t)-1))
256 Perl_croak(aTHX_ "leaving effective uid failed");
259 if (setregid(rgid, egid))
262 if (setresgid(rgid, egid, (Gid_t)-1))
265 Perl_croak(aTHX_ "leaving effective gid failed");
270 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
271 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
272 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
275 #if !defined(PERL_EFF_ACCESS_R_OK)
276 /* With it or without it: anyway you get a warning: either that
277 it is unused, or it is declared static and never defined.
280 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
282 Perl_croak(aTHX_ "switching effective uid is not implemented");
298 if (PL_op->op_private & OPpOPEN_IN_RAW)
300 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
302 fp = PerlProc_popen(tmps, mode);
305 if (PL_curcop->cop_io) {
306 type = SvPV_nolen(PL_curcop->cop_io);
309 PerlIO_apply_layers(aTHX_ fp,mode,type);
311 if (gimme == G_VOID) {
313 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
317 else if (gimme == G_SCALAR) {
318 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
319 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
330 if (sv_gets(sv, fp, 0) == Nullch) {
334 XPUSHs(sv_2mortal(sv));
335 if (SvLEN(sv) - SvCUR(sv) > 20) {
336 SvLEN_set(sv, SvCUR(sv)+1);
337 Renew(SvPVX(sv), SvLEN(sv), char);
342 STATUS_NATIVE_SET(PerlProc_pclose(fp));
343 TAINT; /* "I believe that this is not gratuitous!" */
346 STATUS_NATIVE_SET(-1);
347 if (gimme == G_SCALAR)
357 tryAMAGICunTARGET(iter, -1);
359 /* Note that we only ever get here if File::Glob fails to load
360 * without at the same time croaking, for some reason, or if
361 * perl was built with PERL_EXTERNAL_GLOB */
368 * The external globbing program may use things we can't control,
369 * so for security reasons we must assume the worst.
372 taint_proper(PL_no_security, "glob");
376 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
377 PL_last_in_gv = (GV*)*PL_stack_sp--;
379 SAVESPTR(PL_rs); /* This is not permanent, either. */
380 PL_rs = sv_2mortal(newSVpvn("\000", 1));
383 *SvPVX(PL_rs) = '\n';
387 result = do_readline();
392 #if 0 /* XXX never used! */
396 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
397 return do_readline();
403 PL_last_in_gv = cGVOP_gv;
404 return do_readline();
413 if (SP - MARK != 1) {
415 do_join(TARG, &PL_sv_no, MARK, SP);
422 tmps = SvPV(tmpsv, len);
425 (void)SvUPGRADE(error, SVt_PV);
426 if (SvPOK(error) && SvCUR(error))
427 sv_catpv(error, "\t...caught");
429 tmps = SvPV(tmpsv, len);
432 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
434 Perl_warn(aTHX_ "%"SVf, tmpsv);
445 if (SP - MARK != 1) {
447 do_join(TARG, &PL_sv_no, MARK, SP);
449 tmps = SvPV(tmpsv, len);
455 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
459 (void)SvUPGRADE(error, SVt_PV);
460 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
462 SvSetSV(error,tmpsv);
463 else if (sv_isobject(error)) {
464 HV *stash = SvSTASH(SvRV(error));
465 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
467 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
468 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
475 call_sv((SV*)GvCV(gv),
476 G_SCALAR|G_EVAL|G_KEEPERR);
477 sv_setsv(error,*PL_stack_sp--);
483 if (SvPOK(error) && SvCUR(error))
484 sv_catpv(error, "\t...propagated");
486 tmps = SvPV(tmpsv, len);
490 tmpsv = sv_2mortal(newSVpvn("Died", 4));
492 DIE(aTHX_ "%"SVf, tmpsv);
511 DIE(aTHX_ PL_no_usym, "filehandle");
513 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
515 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
516 /* Method's args are same as ours ... */
517 /* ... except handle is replaced by the object */
518 *MARK-- = SvTIED_obj((SV*)gv, mg);
522 call_method("OPEN", G_SCALAR);
535 tmps = SvPV(sv, len);
536 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
539 PUSHi( (I32)PL_forkprocess );
540 else if (PL_forkprocess == 0) /* we are a new child */
558 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
560 XPUSHs(SvTIED_obj((SV*)gv, mg));
563 call_method("CLOSE", G_SCALAR);
569 PUSHs(boolSV(do_close(gv, TRUE)));
589 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
590 DIE(aTHX_ PL_no_usym, "filehandle");
595 do_close(rgv, FALSE);
597 do_close(wgv, FALSE);
599 if (PerlProc_pipe(fd) < 0)
602 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
603 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
604 IoIFP(wstio) = IoOFP(wstio);
605 IoTYPE(rstio) = IoTYPE_RDONLY;
606 IoTYPE(wstio) = IoTYPE_WRONLY;
608 if (!IoIFP(rstio) || !IoOFP(wstio)) {
609 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
610 else PerlLIO_close(fd[0]);
611 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
612 else PerlLIO_close(fd[1]);
615 #if defined(HAS_FCNTL) && defined(F_SETFD)
616 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
617 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
624 DIE(aTHX_ PL_no_func, "pipe");
640 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
642 XPUSHs(SvTIED_obj((SV*)gv, mg));
645 call_method("FILENO", G_SCALAR);
651 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
652 /* Can't do this because people seem to do things like
653 defined(fileno($foo)) to check whether $foo is a valid fh.
654 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
655 report_evil_fh(gv, io, PL_op->op_type);
660 PUSHi(PerlIO_fileno(fp));
671 anum = PerlLIO_umask(0);
672 (void)PerlLIO_umask(anum);
675 anum = PerlLIO_umask(POPi);
676 TAINT_PROPER("umask");
679 /* Only DIE if trying to restrict permissions on `user' (self).
680 * Otherwise it's harmless and more useful to just return undef
681 * since 'group' and 'other' concepts probably don't exist here. */
682 if (MAXARG >= 1 && (POPi & 0700))
683 DIE(aTHX_ "umask not implemented");
684 XPUSHs(&PL_sv_undef);
706 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
708 XPUSHs(SvTIED_obj((SV*)gv, mg));
713 call_method("BINMODE", G_SCALAR);
720 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
721 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
722 report_evil_fh(gv, io, PL_op->op_type);
726 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
727 (discp) ? SvPV_nolen(discp) : Nullch))
741 I32 markoff = MARK - PL_stack_base;
743 int how = PERL_MAGIC_tied;
748 switch(SvTYPE(varsv)) {
750 methname = "TIEHASH";
751 HvEITER((HV *)varsv) = Null(HE *);
754 methname = "TIEARRAY";
757 #ifdef GV_UNIQUE_CHECK
758 if (GvUNIQUE((GV*)varsv)) {
759 Perl_croak(aTHX_ "Attempt to tie unique GV");
762 methname = "TIEHANDLE";
763 how = PERL_MAGIC_tiedscalar;
766 methname = "TIESCALAR";
767 how = PERL_MAGIC_tiedscalar;
771 if (sv_isobject(*MARK)) {
773 PUSHSTACKi(PERLSI_MAGIC);
779 call_method(methname, G_SCALAR);
782 /* Not clear why we don't call call_method here too.
783 * perhaps to get different error message ?
785 stash = gv_stashsv(*MARK, FALSE);
786 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
787 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
788 methname, SvPV(*MARK,n_a));
791 PUSHSTACKi(PERLSI_MAGIC);
797 call_sv((SV*)GvCV(gv), G_SCALAR);
803 if (sv_isobject(sv)) {
804 sv_unmagic(varsv, how);
805 /* Croak if a self-tie on an aggregate is attempted. */
806 if (varsv == SvRV(sv) &&
807 (SvTYPE(sv) == SVt_PVAV ||
808 SvTYPE(sv) == SVt_PVHV))
810 "Self-ties of arrays and hashes are not supported");
811 sv_magic(varsv, sv, how, Nullch, 0);
814 SP = PL_stack_base + markoff;
823 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
824 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
827 if ((mg = SvTIED_mg(sv, how))) {
828 SV *obj = SvRV(mg->mg_obj);
831 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
832 isGV(gv) && (cv = GvCV(gv))) {
834 XPUSHs(SvTIED_obj((SV*)gv, mg));
835 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
838 call_sv((SV *)cv, G_VOID);
842 else if (ckWARN(WARN_UNTIE)) {
843 if (mg && SvREFCNT(obj) > 1)
844 Perl_warner(aTHX_ WARN_UNTIE,
845 "untie attempted while %"UVuf" inner references still exist",
846 (UV)SvREFCNT(obj) - 1 ) ;
857 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
858 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
861 if ((mg = SvTIED_mg(sv, how))) {
862 SV *osv = SvTIED_obj(sv, mg);
863 if (osv == mg->mg_obj)
864 osv = sv_mortalcopy(osv);
882 sv = sv_mortalcopy(&PL_sv_no);
883 sv_setpv(sv, "AnyDBM_File");
884 stash = gv_stashsv(sv, FALSE);
885 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
887 require_pv("AnyDBM_File.pm");
889 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
890 DIE(aTHX_ "No dbm on this machine");
900 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
902 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
905 call_sv((SV*)GvCV(gv), G_SCALAR);
908 if (!sv_isobject(TOPs)) {
913 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
916 call_sv((SV*)GvCV(gv), G_SCALAR);
920 if (sv_isobject(TOPs)) {
921 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
922 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
944 struct timeval timebuf;
945 struct timeval *tbuf = &timebuf;
949 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
954 # if BYTEORDER & 0xf0000
955 # define ORDERBYTE (0x88888888 - BYTEORDER)
957 # define ORDERBYTE (0x4444 - BYTEORDER)
963 for (i = 1; i <= 3; i++) {
971 /* little endians can use vecs directly */
972 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
973 # if SELECT_MIN_BITS > 1
974 /* If SELECT_MIN_BITS is greater than one we most probably will want
975 * to align the sizes with SELECT_MIN_BITS/8 because for example
976 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
977 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
978 * on (sets/tests/clears bits) is 32 bits. */
979 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
981 growsize = sizeof(fd_set);
990 masksize = NFDBITS / NBBY;
992 masksize = sizeof(long); /* documented int, everyone seems to use long */
994 growsize = maxlen + (masksize - (maxlen % masksize));
995 Zero(&fd_sets[0], 4, char*);
1003 timebuf.tv_sec = (long)value;
1004 value -= (NV)timebuf.tv_sec;
1005 timebuf.tv_usec = (long)(value * 1000000.0);
1008 tbuf = Null(struct timeval*);
1010 for (i = 1; i <= 3; i++) {
1016 else if (!SvPOK(sv))
1017 SvPV_force(sv,n_a); /* force string conversion */
1020 Sv_Grow(sv, growsize);
1024 while (++j <= growsize) {
1028 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1030 New(403, fd_sets[i], growsize, char);
1031 for (offset = 0; offset < growsize; offset += masksize) {
1032 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1033 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1036 fd_sets[i] = SvPVX(sv);
1040 nfound = PerlSock_select(
1042 (Select_fd_set_t) fd_sets[1],
1043 (Select_fd_set_t) fd_sets[2],
1044 (Select_fd_set_t) fd_sets[3],
1046 for (i = 1; i <= 3; i++) {
1049 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1051 for (offset = 0; offset < growsize; offset += masksize) {
1052 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1053 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1055 Safefree(fd_sets[i]);
1062 if (GIMME == G_ARRAY && tbuf) {
1063 value = (NV)(timebuf.tv_sec) +
1064 (NV)(timebuf.tv_usec) / 1000000.0;
1065 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1066 sv_setnv(sv, value);
1070 DIE(aTHX_ "select not implemented");
1075 Perl_setdefout(pTHX_ GV *gv)
1078 (void)SvREFCNT_inc(gv);
1080 SvREFCNT_dec(PL_defoutgv);
1087 GV *newdefout, *egv;
1090 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1092 egv = GvEGV(PL_defoutgv);
1097 XPUSHs(&PL_sv_undef);
1099 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1100 if (gvp && *gvp == egv) {
1101 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1105 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1110 if (!GvIO(newdefout))
1111 gv_IOadd(newdefout);
1112 setdefout(newdefout);
1129 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1130 I32 gimme = GIMME_V;
1132 XPUSHs(SvTIED_obj((SV*)gv, mg));
1135 call_method("GETC", gimme);
1138 if (gimme == G_SCALAR)
1139 SvSetMagicSV_nosteal(TARG, TOPs);
1142 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1145 sv_setpv(TARG, " ");
1146 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1147 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1148 /* Find out how many bytes the char needs */
1149 Size_t len = UTF8SKIP(SvPVX(TARG));
1152 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1153 SvCUR_set(TARG,1+len);
1163 return pp_sysread();
1167 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1169 register PERL_CONTEXT *cx;
1170 I32 gimme = GIMME_V;
1171 AV* padlist = CvPADLIST(cv);
1172 SV** svp = AvARRAY(padlist);
1178 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1180 SAVEVPTR(PL_curpad);
1181 PL_curpad = AvARRAY((AV*)svp[1]);
1183 setdefout(gv); /* locally select filehandle so $% et al work */
1216 SV *tmpsv = sv_newmortal();
1217 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1218 name = SvPV_nolen(tmpsv);
1221 DIE(aTHX_ "Undefined format \"%s\" called", name);
1222 DIE(aTHX_ "Not a format reference");
1225 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1227 IoFLAGS(io) &= ~IOf_DIDTOP;
1228 return doform(cv,gv,PL_op->op_next);
1234 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1235 register IO *io = GvIOp(gv);
1236 PerlIO *ofp = IoOFP(io);
1240 register PERL_CONTEXT *cx;
1242 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1243 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1246 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1247 PL_formtarget != PL_toptarget)
1251 if (!IoTOP_GV(io)) {
1255 if (!IoTOP_NAME(io)) {
1256 if (!IoFMT_NAME(io))
1257 IoFMT_NAME(io) = savepv(GvNAME(gv));
1258 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1259 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1260 if ((topgv && GvFORM(topgv)) ||
1261 !gv_fetchpv("top",FALSE,SVt_PVFM))
1262 IoTOP_NAME(io) = savepv(SvPVX(topname));
1264 IoTOP_NAME(io) = savepv("top");
1266 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1267 if (!topgv || !GvFORM(topgv)) {
1268 IoLINES_LEFT(io) = 100000000;
1271 IoTOP_GV(io) = topgv;
1273 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1274 I32 lines = IoLINES_LEFT(io);
1275 char *s = SvPVX(PL_formtarget);
1276 if (lines <= 0) /* Yow, header didn't even fit!!! */
1278 while (lines-- > 0) {
1279 s = strchr(s, '\n');
1285 STRLEN save = SvCUR(PL_formtarget);
1286 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1287 do_print(PL_formtarget, ofp);
1288 SvCUR_set(PL_formtarget, save);
1289 sv_chop(PL_formtarget, s);
1290 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1293 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1294 do_print(PL_formfeed, ofp);
1295 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1297 PL_formtarget = PL_toptarget;
1298 IoFLAGS(io) |= IOf_DIDTOP;
1301 DIE(aTHX_ "bad top format reference");
1306 SV *sv = sv_newmortal();
1307 gv_efullname4(sv, fgv, Nullch, FALSE);
1308 name = SvPV_nolen(sv);
1311 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1314 DIE(aTHX_ "Undefined top format called");
1318 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1319 return doform(cv,gv,PL_op);
1323 POPBLOCK(cx,PL_curpm);
1329 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1331 /* integrate with report_evil_fh()? */
1334 SV* sv = sv_newmortal();
1335 gv_efullname4(sv, gv, Nullch, FALSE);
1336 name = SvPV_nolen(sv);
1339 Perl_warner(aTHX_ WARN_IO,
1340 "Filehandle %s opened only for input", name);
1342 Perl_warner(aTHX_ WARN_IO,
1343 "Filehandle opened only for input");
1345 else if (ckWARN(WARN_CLOSED))
1346 report_evil_fh(gv, io, PL_op->op_type);
1351 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1352 if (ckWARN(WARN_IO))
1353 Perl_warner(aTHX_ WARN_IO, "page overflow");
1355 if (!do_print(PL_formtarget, fp))
1358 FmLINES(PL_formtarget) = 0;
1359 SvCUR_set(PL_formtarget, 0);
1360 *SvEND(PL_formtarget) = '\0';
1361 if (IoFLAGS(io) & IOf_FLUSH)
1362 (void)PerlIO_flush(fp);
1367 PL_formtarget = PL_bodytarget;
1369 return pop_return();
1374 dSP; dMARK; dORIGMARK;
1381 if (PL_op->op_flags & OPf_STACKED)
1386 if ((mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1387 if (MARK == ORIGMARK) {
1390 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1394 *MARK = SvTIED_obj((SV*)gv, mg);
1397 call_method("PRINTF", G_SCALAR);
1400 MARK = ORIGMARK + 1;
1407 if (!(io = GvIO(gv))) {
1408 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1409 report_evil_fh(gv, io, PL_op->op_type);
1410 SETERRNO(EBADF,RMS$_IFI);
1413 else if (!(fp = IoOFP(io))) {
1414 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1415 /* integrate with report_evil_fh()? */
1419 gv_efullname4(sv, gv, Nullch, FALSE);
1420 name = SvPV_nolen(sv);
1423 Perl_warner(aTHX_ WARN_IO,
1424 "Filehandle %s opened only for input", name);
1426 Perl_warner(aTHX_ WARN_IO,
1427 "Filehandle opened only for input");
1429 else if (ckWARN(WARN_CLOSED))
1430 report_evil_fh(gv, io, PL_op->op_type);
1432 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1436 do_sprintf(sv, SP - MARK, MARK + 1);
1437 if (!do_print(sv, fp))
1440 if (IoFLAGS(io) & IOf_FLUSH)
1441 if (PerlIO_flush(fp) == EOF)
1452 PUSHs(&PL_sv_undef);
1473 /* Need TIEHANDLE method ? */
1475 tmps = SvPV(sv, len);
1476 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1477 IoLINES(GvIOp(gv)) = 0;
1481 PUSHs(&PL_sv_undef);
1488 dSP; dMARK; dORIGMARK; dTARGET;
1495 Sock_size_t bufsize;
1504 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1505 (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
1510 *MARK = SvTIED_obj((SV*)gv, mg);
1512 call_method("READ", G_SCALAR);
1525 sv_setpvn(bufsv, "", 0);
1526 length = SvIVx(*++MARK);
1529 offset = SvIVx(*++MARK);
1533 if (!io || !IoIFP(io))
1535 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1536 buffer = SvPVutf8_force(bufsv, blen);
1537 /* UTF8 may not have been set if they are all low bytes */
1541 buffer = SvPV_force(bufsv, blen);
1544 DIE(aTHX_ "Negative length");
1548 if (PL_op->op_type == OP_RECV) {
1549 char namebuf[MAXPATHLEN];
1550 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1551 bufsize = sizeof (struct sockaddr_in);
1553 bufsize = sizeof namebuf;
1555 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1559 buffer = SvGROW(bufsv, length+1);
1560 /* 'offset' means 'flags' here */
1561 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1562 (struct sockaddr *)namebuf, &bufsize);
1566 /* Bogus return without padding */
1567 bufsize = sizeof (struct sockaddr_in);
1569 SvCUR_set(bufsv, count);
1570 *SvEND(bufsv) = '\0';
1571 (void)SvPOK_only(bufsv);
1575 /* This should not be marked tainted if the fp is marked clean */
1576 if (!(IoFLAGS(io) & IOf_UNTAINT))
1577 SvTAINTED_on(bufsv);
1579 sv_setpvn(TARG, namebuf, bufsize);
1584 if (PL_op->op_type == OP_RECV)
1585 DIE(aTHX_ PL_no_sock_func, "recv");
1587 if (DO_UTF8(bufsv)) {
1588 /* offset adjust in characters not bytes */
1589 blen = sv_len_utf8(bufsv);
1593 DIE(aTHX_ "Offset outside string");
1596 if (DO_UTF8(bufsv)) {
1597 /* convert offset-as-chars to offset-as-bytes */
1598 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1601 bufsize = SvCUR(bufsv);
1602 buffer = SvGROW(bufsv, length+offset+1);
1603 if (offset > bufsize) { /* Zero any newly allocated space */
1604 Zero(buffer+bufsize, offset-bufsize, char);
1606 buffer = buffer + offset;
1608 if (PL_op->op_type == OP_SYSREAD) {
1609 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1610 if (IoTYPE(io) == IoTYPE_SOCKET) {
1611 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1617 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1622 #ifdef HAS_SOCKET__bad_code_maybe
1623 if (IoTYPE(io) == IoTYPE_SOCKET) {
1624 char namebuf[MAXPATHLEN];
1625 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1626 bufsize = sizeof (struct sockaddr_in);
1628 bufsize = sizeof namebuf;
1630 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1631 (struct sockaddr *)namebuf, &bufsize);
1636 count = PerlIO_read(IoIFP(io), buffer, length);
1637 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1638 if (count == 0 && PerlIO_error(IoIFP(io)))
1642 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1644 /* integrate with report_evil_fh()? */
1647 SV* sv = sv_newmortal();
1648 gv_efullname4(sv, gv, Nullch, FALSE);
1649 name = SvPV_nolen(sv);
1652 Perl_warner(aTHX_ WARN_IO,
1653 "Filehandle %s opened only for output", name);
1655 Perl_warner(aTHX_ WARN_IO,
1656 "Filehandle opened only for output");
1660 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1661 *SvEND(bufsv) = '\0';
1662 (void)SvPOK_only(bufsv);
1663 if (fp_utf8 && !IN_BYTES) {
1664 /* Look at utf8 we got back and count the characters */
1665 char *bend = buffer + count;
1666 while (buffer < bend) {
1667 STRLEN skip = UTF8SKIP(buffer);
1668 if (buffer+skip > bend) {
1669 /* partial character - try for rest of it */
1670 length = skip - (bend-buffer);
1671 offset = bend - SvPVX(bufsv);
1679 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1680 provided amount read (count) was what was requested (length)
1682 if (got < wanted && count == length) {
1683 length = (wanted-got);
1684 offset = bend - SvPVX(bufsv);
1687 /* return value is character count */
1692 /* This should not be marked tainted if the fp is marked clean */
1693 if (!(IoFLAGS(io) & IOf_UNTAINT))
1694 SvTAINTED_on(bufsv);
1707 int items = (SP - PL_stack_base) - TOPMARK;
1711 sv = sv_2mortal(newSViv(sv_len(*SP)));
1720 dSP; dMARK; dORIGMARK; dTARGET;
1731 if (PL_op->op_type == OP_SYSWRITE
1732 && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar)))
1737 *MARK = SvTIED_obj((SV*)gv, mg);
1739 call_method("WRITE", G_SCALAR);
1750 #if Size_t_size > IVSIZE
1751 length = (Size_t)SvNVx(*++MARK);
1753 length = (Size_t)SvIVx(*++MARK);
1755 if ((SSize_t)length < 0)
1756 DIE(aTHX_ "Negative length");
1759 if (!io || !IoIFP(io)) {
1761 if (ckWARN(WARN_CLOSED))
1762 report_evil_fh(gv, io, PL_op->op_type);
1766 if (PerlIO_isutf8(IoIFP(io))) {
1767 buffer = SvPVutf8(bufsv, blen);
1771 sv_utf8_downgrade(bufsv, FALSE);
1772 buffer = SvPV(bufsv, blen);
1775 if (PL_op->op_type == OP_SYSWRITE) {
1777 if (DO_UTF8(bufsv)) {
1778 /* length and offset are in chars */
1779 blen = sv_len_utf8(bufsv);
1782 offset = SvIVx(*++MARK);
1785 DIE(aTHX_ "Offset outside string");
1787 } else if (offset >= blen && blen > 0)
1788 DIE(aTHX_ "Offset outside string");
1791 if (length > blen - offset)
1792 length = blen - offset;
1793 if (DO_UTF8(bufsv)) {
1794 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1795 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1798 buffer = buffer+offset;
1800 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1801 if (IoTYPE(io) == IoTYPE_SOCKET) {
1802 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1808 /* See the note at doio.c:do_print about filesize limits. --jhi */
1809 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1814 else if (SP > MARK) {
1817 sockbuf = SvPVx(*++MARK, mlen);
1818 /* length is really flags */
1819 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1820 length, (struct sockaddr *)sockbuf, mlen);
1823 /* length is really flags */
1824 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1827 DIE(aTHX_ PL_no_sock_func, "send");
1832 #if Size_t_size > IVSIZE
1846 return pp_sysread();
1856 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1858 gv = PL_last_in_gv = PL_argvgv;
1860 if (io && !IoIFP(io)) {
1861 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1863 IoFLAGS(io) &= ~IOf_START;
1864 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1865 sv_setpvn(GvSV(gv), "-", 1);
1866 SvSETMAGIC(GvSV(gv));
1868 else if (!nextargv(gv))
1873 gv = PL_last_in_gv; /* eof */
1876 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1878 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1880 XPUSHs(SvTIED_obj((SV*)gv, mg));
1883 call_method("EOF", G_SCALAR);
1889 PUSHs(boolSV(!gv || do_eof(gv)));
1902 gv = PL_last_in_gv = (GV*)POPs;
1904 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1906 XPUSHs(SvTIED_obj((SV*)gv, mg));
1909 call_method("TELL", G_SCALAR);
1915 #if LSEEKSIZE > IVSIZE
1916 PUSHn( do_tell(gv) );
1918 PUSHi( do_tell(gv) );
1925 return pp_sysseek();
1933 #if LSEEKSIZE > IVSIZE
1934 Off_t offset = (Off_t)SvNVx(POPs);
1936 Off_t offset = (Off_t)SvIVx(POPs);
1940 gv = PL_last_in_gv = (GV*)POPs;
1942 if (gv && (mg = SvTIED_mg((SV*)gv, PERL_MAGIC_tiedscalar))) {
1944 XPUSHs(SvTIED_obj((SV*)gv, mg));
1945 #if LSEEKSIZE > IVSIZE
1946 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1948 XPUSHs(sv_2mortal(newSViv(offset)));
1950 XPUSHs(sv_2mortal(newSViv(whence)));
1953 call_method("SEEK", G_SCALAR);
1959 if (PL_op->op_type == OP_SEEK)
1960 PUSHs(boolSV(do_seek(gv, offset, whence)));
1962 Off_t sought = do_sysseek(gv, offset, whence);
1964 PUSHs(&PL_sv_undef);
1967 #if LSEEKSIZE > IVSIZE
1972 : newSVpvn(zero_but_true, ZBTLEN);
1973 PUSHs(sv_2mortal(sv));
1982 /* There seems to be no consensus on the length type of truncate()
1983 * and ftruncate(), both off_t and size_t have supporters. In
1984 * general one would think that when using large files, off_t is
1985 * at least as wide as size_t, so using an off_t should be okay. */
1986 /* XXX Configure probe for the length type of *truncate() needed XXX */
1989 #if Size_t_size > IVSIZE
1994 /* Checking for length < 0 is problematic as the type might or
1995 * might not be signed: if it is not, clever compilers will moan. */
1996 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
1998 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2004 if (PL_op->op_flags & OPf_SPECIAL) {
2005 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2008 TAINT_PROPER("truncate");
2009 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2012 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2014 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2016 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2025 if (SvTYPE(sv) == SVt_PVGV) {
2026 tmpgv = (GV*)sv; /* *main::FRED for example */
2029 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2030 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2034 name = SvPV(sv, n_a);
2035 TAINT_PROPER("truncate");
2037 if (truncate(name, len) < 0)
2043 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2046 if (my_chsize(tmpfd, len) < 0)
2048 PerlLIO_close(tmpfd);
2057 SETERRNO(EBADF,RMS$_IFI);
2061 DIE(aTHX_ "truncate not implemented");
2074 unsigned int func = POPu;
2075 int optype = PL_op->op_type;
2079 IO *io = gv ? GvIOn(gv) : 0;
2081 if (!io || !argsv || !IoIFP(io)) {
2082 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2083 report_evil_fh(gv, io, PL_op->op_type);
2084 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2088 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2091 s = SvPV_force(argsv, len);
2092 need = IOCPARM_LEN(func);
2094 s = Sv_Grow(argsv, need + 1);
2095 SvCUR_set(argsv, need);
2098 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2101 retval = SvIV(argsv);
2102 s = INT2PTR(char*,retval); /* ouch */
2105 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2107 if (optype == OP_IOCTL)
2109 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2111 DIE(aTHX_ "ioctl is not implemented");
2115 #if defined(OS2) && defined(__EMX__)
2116 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2118 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2121 DIE(aTHX_ "fcntl is not implemented");
2125 if (s[SvCUR(argsv)] != 17)
2126 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2127 PL_op_name[optype]);
2128 s[SvCUR(argsv)] = 0; /* put our null back */
2129 SvSETMAGIC(argsv); /* Assume it has changed */
2138 PUSHp(zero_but_true, ZBTLEN);
2158 if (gv && (io = GvIO(gv)))
2165 (void)PerlIO_flush(fp);
2166 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2169 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2170 report_evil_fh(gv, io, PL_op->op_type);
2172 SETERRNO(EBADF,RMS$_IFI);
2177 DIE(aTHX_ PL_no_func, "flock()");
2189 int protocol = POPi;
2195 io = gv ? GvIOn(gv) : NULL;
2198 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2199 report_evil_fh(gv, io, PL_op->op_type);
2201 do_close(gv, FALSE);
2202 SETERRNO(EBADF,LIB$_INVARG);
2207 do_close(gv, FALSE);
2209 TAINT_PROPER("socket");
2210 fd = PerlSock_socket(domain, type, protocol);
2213 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2214 IoOFP(io) = PerlIO_fdopen(fd, "w");
2215 IoTYPE(io) = IoTYPE_SOCKET;
2216 if (!IoIFP(io) || !IoOFP(io)) {
2217 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2218 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2219 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2222 #if defined(HAS_FCNTL) && defined(F_SETFD)
2223 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2227 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2232 DIE(aTHX_ PL_no_sock_func, "socket");
2238 #ifdef HAS_SOCKETPAIR
2244 int protocol = POPi;
2251 io1 = gv1 ? GvIOn(gv1) : NULL;
2252 io2 = gv2 ? GvIOn(gv2) : NULL;
2253 if (!gv1 || !gv2 || !io1 || !io2) {
2254 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2256 report_evil_fh(gv1, io1, PL_op->op_type);
2258 report_evil_fh(gv1, io2, PL_op->op_type);
2261 do_close(gv1, FALSE);
2263 do_close(gv2, FALSE);
2268 do_close(gv1, FALSE);
2270 do_close(gv2, FALSE);
2272 TAINT_PROPER("socketpair");
2273 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2275 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2276 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2277 IoTYPE(io1) = IoTYPE_SOCKET;
2278 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2279 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2280 IoTYPE(io2) = IoTYPE_SOCKET;
2281 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2282 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2283 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2284 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2285 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2286 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2287 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2290 #if defined(HAS_FCNTL) && defined(F_SETFD)
2291 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2292 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2297 DIE(aTHX_ PL_no_sock_func, "socketpair");
2305 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2306 extern void GETPRIVMODE();
2307 extern void GETUSERMODE();
2312 register IO *io = GvIOn(gv);
2316 int mpeprivmode = 0;
2319 if (!io || !IoIFP(io))
2322 addr = SvPV(addrsv, len);
2323 TAINT_PROPER("bind");
2324 #ifdef MPE /* Deal with MPE bind() peculiarities */
2325 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2326 /* The address *MUST* stupidly be zero. */
2327 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2328 /* PRIV mode is required to bind() to ports < 1024. */
2329 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2330 ((struct sockaddr_in *)addr)->sin_port > 0) {
2331 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2336 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2337 (struct sockaddr *)addr, len) >= 0)
2340 #ifdef MPE /* Switch back to USER mode */
2351 if (ckWARN(WARN_CLOSED))
2352 report_evil_fh(gv, io, PL_op->op_type);
2353 SETERRNO(EBADF,SS$_IVCHAN);
2356 DIE(aTHX_ PL_no_sock_func, "bind");
2367 register IO *io = GvIOn(gv);
2370 if (!io || !IoIFP(io))
2373 addr = SvPV(addrsv, len);
2374 TAINT_PROPER("connect");
2375 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2381 if (ckWARN(WARN_CLOSED))
2382 report_evil_fh(gv, io, PL_op->op_type);
2383 SETERRNO(EBADF,SS$_IVCHAN);
2386 DIE(aTHX_ PL_no_sock_func, "connect");
2396 register IO *io = gv ? GvIOn(gv) : NULL;
2398 if (!gv || !io || !IoIFP(io))
2401 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2407 if (ckWARN(WARN_CLOSED))
2408 report_evil_fh(gv, io, PL_op->op_type);
2409 SETERRNO(EBADF,SS$_IVCHAN);
2412 DIE(aTHX_ PL_no_sock_func, "listen");
2424 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2425 Sock_size_t len = sizeof saddr;
2437 if (!gstio || !IoIFP(gstio))
2442 do_close(ngv, FALSE);
2444 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2447 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2448 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2449 IoTYPE(nstio) = IoTYPE_SOCKET;
2450 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2451 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2452 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2453 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2456 #if defined(HAS_FCNTL) && defined(F_SETFD)
2457 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2461 len = sizeof saddr; /* EPOC somehow truncates info */
2462 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2465 PUSHp((char *)&saddr, len);
2469 if (ckWARN(WARN_CLOSED))
2470 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2471 SETERRNO(EBADF,SS$_IVCHAN);
2477 DIE(aTHX_ PL_no_sock_func, "accept");
2487 register IO *io = GvIOn(gv);
2489 if (!io || !IoIFP(io))
2492 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2496 if (ckWARN(WARN_CLOSED))
2497 report_evil_fh(gv, io, PL_op->op_type);
2498 SETERRNO(EBADF,SS$_IVCHAN);
2501 DIE(aTHX_ PL_no_sock_func, "shutdown");
2508 return pp_ssockopt();
2510 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2518 int optype = PL_op->op_type;
2521 unsigned int optname;
2527 if (optype == OP_GSOCKOPT)
2528 sv = sv_2mortal(NEWSV(22, 257));
2531 optname = (unsigned int) POPi;
2532 lvl = (unsigned int) POPi;
2536 if (!io || !IoIFP(io))
2539 fd = PerlIO_fileno(IoIFP(io));
2543 (void)SvPOK_only(sv);
2547 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2562 aint = (int)SvIV(sv);
2566 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2575 if (ckWARN(WARN_CLOSED))
2576 report_evil_fh(gv, io, optype);
2577 SETERRNO(EBADF,SS$_IVCHAN);
2582 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2589 return pp_getpeername();
2591 DIE(aTHX_ PL_no_sock_func, "getsockname");
2599 int optype = PL_op->op_type;
2603 register IO *io = GvIOn(gv);
2606 if (!io || !IoIFP(io))
2609 sv = sv_2mortal(NEWSV(22, 257));
2610 (void)SvPOK_only(sv);
2614 fd = PerlIO_fileno(IoIFP(io));
2616 case OP_GETSOCKNAME:
2617 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2620 case OP_GETPEERNAME:
2621 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2623 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2625 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";
2626 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2627 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2628 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2629 sizeof(u_short) + sizeof(struct in_addr))) {
2636 #ifdef BOGUS_GETNAME_RETURN
2637 /* Interactive Unix, getpeername() and getsockname()
2638 does not return valid namelen */
2639 if (len == BOGUS_GETNAME_RETURN)
2640 len = sizeof(struct sockaddr);
2648 if (ckWARN(WARN_CLOSED))
2649 report_evil_fh(gv, io, optype);
2650 SETERRNO(EBADF,SS$_IVCHAN);
2655 DIE(aTHX_ PL_no_sock_func, "getpeername");
2674 if (PL_op->op_flags & OPf_REF) {
2676 if (PL_op->op_type == OP_LSTAT) {
2677 if (PL_laststype != OP_LSTAT)
2678 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2679 if (ckWARN(WARN_IO) && gv != PL_defgv)
2680 Perl_warner(aTHX_ WARN_IO,
2681 "lstat() on filehandle %s", GvENAME(gv));
2682 /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
2686 if (gv != PL_defgv) {
2687 PL_laststype = OP_STAT;
2689 sv_setpv(PL_statname, "");
2690 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2691 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2693 if (PL_laststatval < 0) {
2694 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2695 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2701 if (SvTYPE(sv) == SVt_PVGV) {
2705 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2709 sv_setpv(PL_statname, SvPV(sv,n_a));
2712 PL_laststype = PL_op->op_type;
2713 if (PL_op->op_type == OP_LSTAT)
2714 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2717 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2718 if (PL_laststatval < 0) {
2719 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2720 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
2726 if (gimme != G_ARRAY) {
2727 if (gimme != G_VOID)
2728 XPUSHs(boolSV(max));
2734 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2735 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2736 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2737 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2738 #if Uid_t_size > IVSIZE
2739 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2741 # if Uid_t_sign <= 0
2742 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2744 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2747 #if Gid_t_size > IVSIZE
2748 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2750 # if Gid_t_sign <= 0
2751 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2753 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2756 #ifdef USE_STAT_RDEV
2757 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2759 PUSHs(sv_2mortal(newSVpvn("", 0)));
2761 #if Off_t_size > IVSIZE
2762 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2764 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2767 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2768 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2769 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2771 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2772 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2773 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2775 #ifdef USE_STAT_BLOCKS
2776 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2777 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2779 PUSHs(sv_2mortal(newSVpvn("", 0)));
2780 PUSHs(sv_2mortal(newSVpvn("", 0)));
2790 #if defined(HAS_ACCESS) && defined(R_OK)
2792 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2793 result = access(TOPpx, R_OK);
2808 if (cando(S_IRUSR, 0, &PL_statcache))
2817 #if defined(HAS_ACCESS) && defined(W_OK)
2819 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2820 result = access(TOPpx, W_OK);
2835 if (cando(S_IWUSR, 0, &PL_statcache))
2844 #if defined(HAS_ACCESS) && defined(X_OK)
2846 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2847 result = access(TOPpx, X_OK);
2862 if (cando(S_IXUSR, 0, &PL_statcache))
2871 #ifdef PERL_EFF_ACCESS_R_OK
2873 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2874 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2889 if (cando(S_IRUSR, 1, &PL_statcache))
2898 #ifdef PERL_EFF_ACCESS_W_OK
2900 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2901 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2916 if (cando(S_IWUSR, 1, &PL_statcache))
2925 #ifdef PERL_EFF_ACCESS_X_OK
2927 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2928 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2943 if (cando(S_IXUSR, 1, &PL_statcache))
2950 I32 result = my_stat();
2959 return pp_ftrowned();
2964 I32 result = my_stat();
2968 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2976 I32 result = my_stat();
2980 if (PL_statcache.st_size == 0)
2987 I32 result = my_stat();
2991 #if Off_t_size > IVSIZE
2992 PUSHn(PL_statcache.st_size);
2994 PUSHi(PL_statcache.st_size);
3001 I32 result = my_stat();
3005 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3011 I32 result = my_stat();
3015 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3021 I32 result = my_stat();
3025 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3031 I32 result = my_stat();
3035 if (S_ISSOCK(PL_statcache.st_mode))
3042 I32 result = my_stat();
3046 if (S_ISCHR(PL_statcache.st_mode))
3053 I32 result = my_stat();
3057 if (S_ISBLK(PL_statcache.st_mode))
3064 I32 result = my_stat();
3068 if (S_ISREG(PL_statcache.st_mode))
3075 I32 result = my_stat();
3079 if (S_ISDIR(PL_statcache.st_mode))
3086 I32 result = my_stat();
3090 if (S_ISFIFO(PL_statcache.st_mode))
3097 I32 result = my_lstat();
3101 if (S_ISLNK(PL_statcache.st_mode))
3110 I32 result = my_stat();
3114 if (PL_statcache.st_mode & S_ISUID)
3124 I32 result = my_stat();
3128 if (PL_statcache.st_mode & S_ISGID)
3138 I32 result = my_stat();
3142 if (PL_statcache.st_mode & S_ISVTX)
3153 char *tmps = Nullch;
3156 if (PL_op->op_flags & OPf_REF)
3158 else if (isGV(TOPs))
3160 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3161 gv = (GV*)SvRV(POPs);
3163 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3165 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3166 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3167 else if (tmps && isDIGIT(*tmps))
3171 if (PerlLIO_isatty(fd))
3176 #if defined(atarist) /* this will work with atariST. Configure will
3177 make guesses for other systems. */
3178 # define FILE_base(f) ((f)->_base)
3179 # define FILE_ptr(f) ((f)->_ptr)
3180 # define FILE_cnt(f) ((f)->_cnt)
3181 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3191 register STDCHAR *s;
3198 if (PL_op->op_flags & OPf_REF)
3200 else if (isGV(TOPs))
3202 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3203 gv = (GV*)SvRV(POPs);
3209 if (gv == PL_defgv) {
3211 io = GvIO(PL_statgv);
3214 goto really_filename;
3219 PL_laststatval = -1;
3220 sv_setpv(PL_statname, "");
3221 io = GvIO(PL_statgv);
3223 if (io && IoIFP(io)) {
3224 if (! PerlIO_has_base(IoIFP(io)))
3225 DIE(aTHX_ "-T and -B not implemented on filehandles");
3226 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3227 if (PL_laststatval < 0)
3229 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3230 if (PL_op->op_type == OP_FTTEXT)
3235 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3236 i = PerlIO_getc(IoIFP(io));
3238 (void)PerlIO_ungetc(IoIFP(io),i);
3240 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3242 len = PerlIO_get_bufsiz(IoIFP(io));
3243 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3244 /* sfio can have large buffers - limit to 512 */
3249 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3251 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3253 SETERRNO(EBADF,RMS$_IFI);
3261 PL_laststatval = -1;
3262 sv_setpv(PL_statname, SvPV(sv, n_a));
3263 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3264 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3265 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
3268 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3269 if (PL_laststatval < 0) {
3270 (void)PerlIO_close(fp);
3273 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3274 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3275 (void)PerlIO_close(fp);
3277 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3278 RETPUSHNO; /* special case NFS directories */
3279 RETPUSHYES; /* null file is anything */
3284 /* now scan s to look for textiness */
3285 /* XXX ASCII dependent code */
3287 #if defined(DOSISH) || defined(USEMYBINMODE)
3288 /* ignore trailing ^Z on short files */
3289 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3293 for (i = 0; i < len; i++, s++) {
3294 if (!*s) { /* null never allowed in text */
3299 else if (!(isPRINT(*s) || isSPACE(*s)))
3302 else if (*s & 128) {
3304 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3307 /* utf8 characters don't count as odd */
3308 if (UTF8_IS_START(*s)) {
3309 int ulen = UTF8SKIP(s);
3310 if (ulen < len - i) {
3312 for (j = 1; j < ulen; j++) {
3313 if (!UTF8_IS_CONTINUATION(s[j]))
3316 --ulen; /* loop does extra increment */
3326 *s != '\n' && *s != '\r' && *s != '\b' &&
3327 *s != '\t' && *s != '\f' && *s != 27)
3332 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3356 if (!tmps || !*tmps) {
3357 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
3359 tmps = SvPV(*svp, n_a);
3361 if (!tmps || !*tmps) {
3362 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
3364 tmps = SvPV(*svp, n_a);
3367 if (!tmps || !*tmps) {
3368 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
3370 tmps = SvPV(*svp, n_a);
3373 TAINT_PROPER("chdir");
3374 PUSHi( PerlDir_chdir(tmps) >= 0 );
3376 /* Clear the DEFAULT element of ENV so we'll get the new value
3378 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3386 dSP; dMARK; dTARGET;
3387 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3393 DIE(aTHX_ PL_no_func, "chown");
3403 TAINT_PROPER("chroot");
3404 PUSHi( chroot(tmps) >= 0 );
3407 DIE(aTHX_ PL_no_func, "chroot");
3413 dSP; dMARK; dTARGET;
3415 value = (I32)apply(PL_op->op_type, MARK, SP);
3423 dSP; dMARK; dTARGET;
3425 value = (I32)apply(PL_op->op_type, MARK, SP);
3433 dSP; dMARK; dTARGET;
3435 value = (I32)apply(PL_op->op_type, MARK, SP);
3447 char *tmps2 = POPpx;
3448 char *tmps = SvPV(TOPs, n_a);
3449 TAINT_PROPER("rename");
3451 anum = PerlLIO_rename(tmps, tmps2);
3453 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3454 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3457 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3458 (void)UNLINK(tmps2);
3459 if (!(anum = link(tmps, tmps2)))
3460 anum = UNLINK(tmps);
3474 char *tmps2 = POPpx;
3475 char *tmps = SvPV(TOPs, n_a);
3476 TAINT_PROPER("link");
3477 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3480 DIE(aTHX_ PL_no_func, "link");
3489 char *tmps2 = POPpx;
3490 char *tmps = SvPV(TOPs, n_a);
3491 TAINT_PROPER("symlink");
3492 SETi( symlink(tmps, tmps2) >= 0 );
3495 DIE(aTHX_ PL_no_func, "symlink");
3505 char buf[MAXPATHLEN];
3509 #ifndef INCOMPLETE_TAINTS
3513 len = readlink(tmps, buf, sizeof(buf) - 1);
3521 RETSETUNDEF; /* just pretend it's a normal file */
3525 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3527 S_dooneliner(pTHX_ char *cmd, char *filename)
3529 char *save_filename = filename;
3535 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3536 strcpy(cmdline, cmd);
3537 strcat(cmdline, " ");
3538 for (s = cmdline + strlen(cmdline); *filename; ) {
3543 myfp = PerlProc_popen(cmdline, "r");
3547 SV *tmpsv = sv_newmortal();
3548 /* Need to save/restore 'PL_rs' ?? */
3549 s = sv_gets(tmpsv, myfp, 0);
3550 (void)PerlProc_pclose(myfp);
3554 #ifdef HAS_SYS_ERRLIST
3559 /* you don't see this */
3561 #ifdef HAS_SYS_ERRLIST
3569 if (instr(s, errmsg)) {
3576 #define EACCES EPERM
3578 if (instr(s, "cannot make"))
3579 SETERRNO(EEXIST,RMS$_FEX);
3580 else if (instr(s, "existing file"))
3581 SETERRNO(EEXIST,RMS$_FEX);
3582 else if (instr(s, "ile exists"))
3583 SETERRNO(EEXIST,RMS$_FEX);
3584 else if (instr(s, "non-exist"))
3585 SETERRNO(ENOENT,RMS$_FNF);
3586 else if (instr(s, "does not exist"))
3587 SETERRNO(ENOENT,RMS$_FNF);
3588 else if (instr(s, "not empty"))
3589 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3590 else if (instr(s, "cannot access"))
3591 SETERRNO(EACCES,RMS$_PRV);
3593 SETERRNO(EPERM,RMS$_PRV);
3596 else { /* some mkdirs return no failure indication */
3597 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3598 if (PL_op->op_type == OP_RMDIR)
3603 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3628 tmps = SvPV(TOPs, len);
3629 /* Different operating and file systems take differently to
3630 * trailing slashes. According to POSIX 1003.1 1996 Edition
3631 * any number of trailing slashes should be allowed.
3632 * Thusly we snip them away so that even non-conforming
3633 * systems are happy. */
3634 /* We should probably do this "filtering" for all
3635 * the functions that expect (potentially) directory names:
3636 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3637 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3638 if (len > 1 && tmps[len-1] == '/') {
3639 while (tmps[len] == '/' && len > 1)
3641 tmps = savepvn(tmps, len);
3645 TAINT_PROPER("mkdir");
3647 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3649 SETi( dooneliner("mkdir", tmps) );
3650 oldumask = PerlLIO_umask(0);
3651 PerlLIO_umask(oldumask);
3652 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3666 TAINT_PROPER("rmdir");
3668 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3670 XPUSHi( dooneliner("rmdir", tmps) );
3675 /* Directory calls. */
3679 #if defined(Direntry_t) && defined(HAS_READDIR)
3682 char *dirname = POPpx;
3684 register IO *io = GvIOn(gv);
3690 PerlDir_close(IoDIRP(io));
3691 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3697 SETERRNO(EBADF,RMS$_DIR);
3700 DIE(aTHX_ PL_no_dir_func, "opendir");
3706 #if defined(Direntry_t) && defined(HAS_READDIR)
3708 #if !defined(I_DIRENT) && !defined(VMS)
3709 Direntry_t *readdir (DIR *);
3711 register Direntry_t *dp;
3713 register IO *io = GvIOn(gv);
3716 if (!io || !IoDIRP(io))
3719 if (GIMME == G_ARRAY) {
3721 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3723 sv = newSVpvn(dp->d_name, dp->d_namlen);
3725 sv = newSVpv(dp->d_name, 0);
3727 #ifndef INCOMPLETE_TAINTS
3728 if (!(IoFLAGS(io) & IOf_UNTAINT))
3731 XPUSHs(sv_2mortal(sv));
3735 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3738 sv = newSVpvn(dp->d_name, dp->d_namlen);
3740 sv = newSVpv(dp->d_name, 0);
3742 #ifndef INCOMPLETE_TAINTS
3743 if (!(IoFLAGS(io) & IOf_UNTAINT))
3746 XPUSHs(sv_2mortal(sv));
3752 SETERRNO(EBADF,RMS$_ISI);
3753 if (GIMME == G_ARRAY)
3758 DIE(aTHX_ PL_no_dir_func, "readdir");
3764 #if defined(HAS_TELLDIR) || defined(telldir)
3766 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3767 /* XXX netbsd still seemed to.
3768 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3769 --JHI 1999-Feb-02 */
3770 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3771 long telldir (DIR *);
3774 register IO *io = GvIOn(gv);
3776 if (!io || !IoDIRP(io))
3779 PUSHi( PerlDir_tell(IoDIRP(io)) );
3783 SETERRNO(EBADF,RMS$_ISI);
3786 DIE(aTHX_ PL_no_dir_func, "telldir");
3792 #if defined(HAS_SEEKDIR) || defined(seekdir)
3796 register IO *io = GvIOn(gv);
3798 if (!io || !IoDIRP(io))
3801 (void)PerlDir_seek(IoDIRP(io), along);
3806 SETERRNO(EBADF,RMS$_ISI);
3809 DIE(aTHX_ PL_no_dir_func, "seekdir");
3815 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3818 register IO *io = GvIOn(gv);
3820 if (!io || !IoDIRP(io))
3823 (void)PerlDir_rewind(IoDIRP(io));
3827 SETERRNO(EBADF,RMS$_ISI);
3830 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3836 #if defined(Direntry_t) && defined(HAS_READDIR)
3839 register IO *io = GvIOn(gv);
3841 if (!io || !IoDIRP(io))
3844 #ifdef VOID_CLOSEDIR
3845 PerlDir_close(IoDIRP(io));
3847 if (PerlDir_close(IoDIRP(io)) < 0) {
3848 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3857 SETERRNO(EBADF,RMS$_IFI);
3860 DIE(aTHX_ PL_no_dir_func, "closedir");
3864 /* Process control. */
3874 PERL_FLUSHALL_FOR_CHILD;
3875 childpid = PerlProc_fork();
3880 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV)))
3881 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3882 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3887 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3892 PERL_FLUSHALL_FOR_CHILD;
3893 childpid = PerlProc_fork();
3899 DIE(aTHX_ PL_no_func, "fork");
3906 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3911 #ifdef PERL_OLD_SIGNALS
3912 childpid = wait4pid(-1, &argflags, 0);
3914 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3918 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3919 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3920 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3922 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3927 DIE(aTHX_ PL_no_func, "wait");
3933 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3941 #ifdef PERL_OLD_SIGNALS
3942 childpid = wait4pid(childpid, &argflags, optype);
3944 while ((childpid = wait4pid(childpid, &argflags, optype)) == -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, "waitpid");
3963 dSP; dMARK; dORIGMARK; dTARGET;
3970 if (SP - MARK == 1) {
3972 (void)SvPV_nolen(TOPs); /* stringify for taint check */
3974 TAINT_PROPER("system");
3977 PERL_FLUSHALL_FOR_CHILD;
3978 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
3982 Sigsave_t ihand,qhand; /* place to save signals during system() */
3984 if (PerlProc_pipe(pp) >= 0)
3986 while ((childpid = PerlProc_fork()) == -1) {
3987 if (errno != EAGAIN) {
3992 PerlLIO_close(pp[0]);
3993 PerlLIO_close(pp[1]);
4001 PerlLIO_close(pp[1]);
4003 rsignal_save(SIGINT, SIG_IGN, &ihand);
4004 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4007 result = wait4pid(childpid, &status, 0);
4008 } while (result == -1 && errno == EINTR);
4010 (void)rsignal_restore(SIGINT, &ihand);
4011 (void)rsignal_restore(SIGQUIT, &qhand);
4013 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4014 do_execfree(); /* free any memory child malloced on fork */
4020 while (n < sizeof(int)) {
4021 n1 = PerlLIO_read(pp[0],
4022 (void*)(((char*)&errkid)+n),
4028 PerlLIO_close(pp[0]);
4029 if (n) { /* Error */
4030 if (n != sizeof(int))
4031 DIE(aTHX_ "panic: kid popen errno read");
4032 errno = errkid; /* Propagate errno from kid */
4033 STATUS_CURRENT = -1;
4036 PUSHi(STATUS_CURRENT);
4040 PerlLIO_close(pp[0]);
4041 #if defined(HAS_FCNTL) && defined(F_SETFD)
4042 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4046 if (PL_op->op_flags & OPf_STACKED) {
4047 SV *really = *++MARK;
4048 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4050 else if (SP - MARK != 1)
4051 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4053 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4056 #else /* ! FORK or VMS or OS/2 */
4059 if (PL_op->op_flags & OPf_STACKED) {
4060 SV *really = *++MARK;
4061 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4063 else if (SP - MARK != 1)
4064 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4066 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4068 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4070 STATUS_NATIVE_SET(value);
4073 PUSHi(result ? value : STATUS_CURRENT);
4074 #endif /* !FORK or VMS */
4080 dSP; dMARK; dORIGMARK; dTARGET;
4084 PERL_FLUSHALL_FOR_CHILD;
4085 if (PL_op->op_flags & OPf_STACKED) {
4086 SV *really = *++MARK;
4087 value = (I32)do_aexec(really, MARK, SP);
4089 else if (SP - MARK != 1)
4091 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4095 (void ) do_aspawn(Nullsv, MARK, SP);
4099 value = (I32)do_aexec(Nullsv, MARK, SP);
4104 (void)SvPV_nolen(*SP); /* stringify for taint check */
4106 TAINT_PROPER("exec");
4109 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4112 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4115 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4128 dSP; dMARK; dTARGET;
4130 value = (I32)apply(PL_op->op_type, MARK, SP);
4135 DIE(aTHX_ PL_no_func, "kill");
4143 XPUSHi( getppid() );
4146 DIE(aTHX_ PL_no_func, "getppid");
4162 pgrp = (I32)BSD_GETPGRP(pid);
4164 if (pid != 0 && pid != PerlProc_getpid())
4165 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4171 DIE(aTHX_ PL_no_func, "getpgrp()");
4190 TAINT_PROPER("setpgrp");
4192 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4194 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4195 || (pid != 0 && pid != PerlProc_getpid()))
4197 DIE(aTHX_ "setpgrp can't take arguments");
4199 SETi( setpgrp() >= 0 );
4200 #endif /* USE_BSDPGRP */
4203 DIE(aTHX_ PL_no_func, "setpgrp()");
4209 #ifdef HAS_GETPRIORITY
4213 SETi( getpriority(which, who) );
4216 DIE(aTHX_ PL_no_func, "getpriority()");
4222 #ifdef HAS_SETPRIORITY
4227 TAINT_PROPER("setpriority");
4228 SETi( setpriority(which, who, niceval) >= 0 );
4231 DIE(aTHX_ PL_no_func, "setpriority()");
4241 XPUSHn( time(Null(Time_t*)) );
4243 XPUSHi( time(Null(Time_t*)) );
4248 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4249 to HZ. Probably. For now, assume that if the system
4250 defines HZ, it does so correctly. (Will this break
4252 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4253 it's supported. --AD 9/96.
4270 (void)PerlProc_times(&PL_timesbuf);
4272 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4273 /* struct tms, though same data */
4277 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4278 if (GIMME == G_ARRAY) {
4279 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4280 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4281 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4285 DIE(aTHX_ "times not implemented");
4286 #endif /* HAS_TIMES */
4299 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4300 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4301 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4307 when = (Time_t)SvNVx(POPs);
4309 when = (Time_t)SvIVx(POPs);
4312 if (PL_op->op_type == OP_LOCALTIME)
4313 tmbuf = localtime(&when);
4315 tmbuf = gmtime(&when);
4317 if (GIMME != G_ARRAY) {
4323 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4324 dayname[tmbuf->tm_wday],
4325 monname[tmbuf->tm_mon],
4330 tmbuf->tm_year + 1900);
4331 PUSHs(sv_2mortal(tsv));
4336 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4337 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4338 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4339 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4340 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4341 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4342 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4343 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4344 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4355 anum = alarm((unsigned int)anum);
4362 DIE(aTHX_ PL_no_func, "alarm");
4373 (void)time(&lasttime);
4378 PerlProc_sleep((unsigned int)duration);
4381 XPUSHi(when - lasttime);
4385 /* Shared memory. */
4399 return pp_shmwrite();
4404 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4405 dSP; dMARK; dTARGET;
4406 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4415 /* Message passing. */
4429 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4430 dSP; dMARK; dTARGET;
4431 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4442 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4443 dSP; dMARK; dTARGET;
4444 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4457 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4458 dSP; dMARK; dTARGET;
4459 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4466 DIE(aTHX_ "System V IPC is not implemented on this machine");
4472 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4473 dSP; dMARK; dTARGET;
4474 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4482 PUSHp(zero_but_true, ZBTLEN);
4492 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4493 dSP; dMARK; dTARGET;
4494 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4503 /* Get system info. */
4507 #ifdef HAS_GETHOSTBYNAME
4508 return pp_ghostent();
4510 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4516 #ifdef HAS_GETHOSTBYADDR
4517 return pp_ghostent();
4519 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4525 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4527 I32 which = PL_op->op_type;
4528 register char **elem;
4530 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4531 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4532 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
4533 struct hostent *PerlSock_gethostent(void);
4535 struct hostent *hent;
4540 if (which == OP_GHBYNAME)
4541 #ifdef HAS_GETHOSTBYNAME
4542 hent = PerlSock_gethostbyname(POPpbytex);
4544 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4546 else if (which == OP_GHBYADDR) {
4547 #ifdef HAS_GETHOSTBYADDR
4548 int addrtype = POPi;
4551 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4553 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4555 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4559 #ifdef HAS_GETHOSTENT
4560 hent = PerlSock_gethostent();
4562 DIE(aTHX_ PL_no_sock_func, "gethostent");
4565 #ifdef HOST_NOT_FOUND
4567 STATUS_NATIVE_SET(h_errno);
4570 if (GIMME != G_ARRAY) {
4571 PUSHs(sv = sv_newmortal());
4573 if (which == OP_GHBYNAME) {
4575 sv_setpvn(sv, hent->h_addr, hent->h_length);
4578 sv_setpv(sv, (char*)hent->h_name);
4584 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4585 sv_setpv(sv, (char*)hent->h_name);
4586 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4587 for (elem = hent->h_aliases; elem && *elem; elem++) {
4588 sv_catpv(sv, *elem);
4590 sv_catpvn(sv, " ", 1);
4592 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4593 sv_setiv(sv, (IV)hent->h_addrtype);
4594 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4595 len = hent->h_length;
4596 sv_setiv(sv, (IV)len);
4598 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4599 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4600 sv_setpvn(sv, *elem, len);
4603 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4605 sv_setpvn(sv, hent->h_addr, len);
4610 DIE(aTHX_ PL_no_sock_func, "gethostent");
4616 #ifdef HAS_GETNETBYNAME
4617 return pp_gnetent();
4619 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4625 #ifdef HAS_GETNETBYADDR
4626 return pp_gnetent();
4628 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4634 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4636 I32 which = PL_op->op_type;
4637 register char **elem;
4639 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4640 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4641 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4642 struct netent *PerlSock_getnetent(void);
4644 struct netent *nent;
4647 if (which == OP_GNBYNAME)
4648 #ifdef HAS_GETNETBYNAME
4649 nent = PerlSock_getnetbyname(POPpbytex);
4651 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4653 else if (which == OP_GNBYADDR) {
4654 #ifdef HAS_GETNETBYADDR
4655 int addrtype = POPi;
4656 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4657 nent = PerlSock_getnetbyaddr(addr, addrtype);
4659 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4663 #ifdef HAS_GETNETENT
4664 nent = PerlSock_getnetent();
4666 DIE(aTHX_ PL_no_sock_func, "getnetent");
4670 if (GIMME != G_ARRAY) {
4671 PUSHs(sv = sv_newmortal());
4673 if (which == OP_GNBYNAME)
4674 sv_setiv(sv, (IV)nent->n_net);
4676 sv_setpv(sv, nent->n_name);
4682 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4683 sv_setpv(sv, nent->n_name);
4684 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4685 for (elem = nent->n_aliases; elem && *elem; elem++) {
4686 sv_catpv(sv, *elem);
4688 sv_catpvn(sv, " ", 1);
4690 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4691 sv_setiv(sv, (IV)nent->n_addrtype);
4692 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4693 sv_setiv(sv, (IV)nent->n_net);
4698 DIE(aTHX_ PL_no_sock_func, "getnetent");
4704 #ifdef HAS_GETPROTOBYNAME
4705 return pp_gprotoent();
4707 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4713 #ifdef HAS_GETPROTOBYNUMBER
4714 return pp_gprotoent();
4716 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4722 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4724 I32 which = PL_op->op_type;
4725 register char **elem;
4727 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4728 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4729 struct protoent *PerlSock_getprotobynumber(int);
4730 struct protoent *PerlSock_getprotoent(void);
4732 struct protoent *pent;
4735 if (which == OP_GPBYNAME)
4736 #ifdef HAS_GETPROTOBYNAME
4737 pent = PerlSock_getprotobyname(POPpbytex);
4739 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4741 else if (which == OP_GPBYNUMBER)
4742 #ifdef HAS_GETPROTOBYNUMBER
4743 pent = PerlSock_getprotobynumber(POPi);
4745 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4748 #ifdef HAS_GETPROTOENT
4749 pent = PerlSock_getprotoent();
4751 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4755 if (GIMME != G_ARRAY) {
4756 PUSHs(sv = sv_newmortal());
4758 if (which == OP_GPBYNAME)
4759 sv_setiv(sv, (IV)pent->p_proto);
4761 sv_setpv(sv, pent->p_name);
4767 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4768 sv_setpv(sv, pent->p_name);
4769 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4770 for (elem = pent->p_aliases; elem && *elem; elem++) {
4771 sv_catpv(sv, *elem);
4773 sv_catpvn(sv, " ", 1);
4775 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4776 sv_setiv(sv, (IV)pent->p_proto);
4781 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4787 #ifdef HAS_GETSERVBYNAME
4788 return pp_gservent();
4790 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4796 #ifdef HAS_GETSERVBYPORT
4797 return pp_gservent();
4799 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4805 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4807 I32 which = PL_op->op_type;
4808 register char **elem;
4810 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4811 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4812 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4813 struct servent *PerlSock_getservent(void);
4815 struct servent *sent;
4818 if (which == OP_GSBYNAME) {
4819 #ifdef HAS_GETSERVBYNAME
4820 char *proto = POPpbytex;
4821 char *name = POPpbytex;
4823 if (proto && !*proto)
4826 sent = PerlSock_getservbyname(name, proto);
4828 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4831 else if (which == OP_GSBYPORT) {
4832 #ifdef HAS_GETSERVBYPORT
4833 char *proto = POPpbytex;
4834 unsigned short port = POPu;
4837 port = PerlSock_htons(port);
4839 sent = PerlSock_getservbyport(port, proto);
4841 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4845 #ifdef HAS_GETSERVENT
4846 sent = PerlSock_getservent();
4848 DIE(aTHX_ PL_no_sock_func, "getservent");
4852 if (GIMME != G_ARRAY) {
4853 PUSHs(sv = sv_newmortal());
4855 if (which == OP_GSBYNAME) {
4857 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4859 sv_setiv(sv, (IV)(sent->s_port));
4863 sv_setpv(sv, sent->s_name);
4869 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4870 sv_setpv(sv, sent->s_name);
4871 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4872 for (elem = sent->s_aliases; elem && *elem; elem++) {
4873 sv_catpv(sv, *elem);
4875 sv_catpvn(sv, " ", 1);
4877 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4879 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4881 sv_setiv(sv, (IV)(sent->s_port));
4883 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4884 sv_setpv(sv, sent->s_proto);
4889 DIE(aTHX_ PL_no_sock_func, "getservent");
4895 #ifdef HAS_SETHOSTENT
4897 PerlSock_sethostent(TOPi);
4900 DIE(aTHX_ PL_no_sock_func, "sethostent");
4906 #ifdef HAS_SETNETENT
4908 PerlSock_setnetent(TOPi);
4911 DIE(aTHX_ PL_no_sock_func, "setnetent");
4917 #ifdef HAS_SETPROTOENT
4919 PerlSock_setprotoent(TOPi);
4922 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4928 #ifdef HAS_SETSERVENT
4930 PerlSock_setservent(TOPi);
4933 DIE(aTHX_ PL_no_sock_func, "setservent");
4939 #ifdef HAS_ENDHOSTENT
4941 PerlSock_endhostent();
4945 DIE(aTHX_ PL_no_sock_func, "endhostent");
4951 #ifdef HAS_ENDNETENT
4953 PerlSock_endnetent();
4957 DIE(aTHX_ PL_no_sock_func, "endnetent");
4963 #ifdef HAS_ENDPROTOENT
4965 PerlSock_endprotoent();
4969 DIE(aTHX_ PL_no_sock_func, "endprotoent");
4975 #ifdef HAS_ENDSERVENT
4977 PerlSock_endservent();
4981 DIE(aTHX_ PL_no_sock_func, "endservent");
4990 DIE(aTHX_ PL_no_func, "getpwnam");
4999 DIE(aTHX_ PL_no_func, "getpwuid");
5007 I32 which = PL_op->op_type;
5010 struct passwd *pwent = NULL;
5012 * We currently support only the SysV getsp* shadow password interface.
5013 * The interface is declared in <shadow.h> and often one needs to link
5014 * with -lsecurity or some such.
5015 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5018 * AIX getpwnam() is clever enough to return the encrypted password
5019 * only if the caller (euid?) is root.
5021 * There are at least two other shadow password APIs. Many platforms
5022 * seem to contain more than one interface for accessing the shadow
5023 * password databases, possibly for compatibility reasons.
5024 * The getsp*() is by far he simplest one, the other two interfaces
5025 * are much more complicated, but also very similar to each other.
5030 * struct pr_passwd *getprpw*();
5031 * The password is in
5032 * char getprpw*(...).ufld.fd_encrypt[]
5033 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5038 * struct es_passwd *getespw*();
5039 * The password is in
5040 * char *(getespw*(...).ufld.fd_encrypt)
5041 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5043 * Mention I_PROT here so that Configure probes for it.
5045 * In HP-UX for getprpw*() the manual page claims that one should include
5046 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5047 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5048 * and pp_sys.c already includes <shadow.h> if there is such.
5050 * Note that <sys/security.h> is already probed for, but currently
5051 * it is only included in special cases.
5053 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5054 * be preferred interface, even though also the getprpw*() interface
5055 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5056 * One also needs to call set_auth_parameters() in main() before
5057 * doing anything else, whether one is using getespw*() or getprpw*().
5059 * Note that accessing the shadow databases can be magnitudes
5060 * slower than accessing the standard databases.
5067 pwent = getpwnam(POPpbytex);
5070 pwent = getpwuid((Uid_t)POPi);
5073 # ifdef HAS_GETPWENT
5076 DIE(aTHX_ PL_no_func, "getpwent");
5082 if (GIMME != G_ARRAY) {
5083 PUSHs(sv = sv_newmortal());
5085 if (which == OP_GPWNAM)
5086 # if Uid_t_sign <= 0
5087 sv_setiv(sv, (IV)pwent->pw_uid);
5089 sv_setuv(sv, (UV)pwent->pw_uid);
5092 sv_setpv(sv, pwent->pw_name);
5098 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5099 sv_setpv(sv, pwent->pw_name);
5101 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5103 /* If we have getspnam(), we try to dig up the shadow
5104 * password. If we are underprivileged, the shadow
5105 * interface will set the errno to EACCES or similar,
5106 * and return a null pointer. If this happens, we will
5107 * use the dummy password (usually "*" or "x") from the
5108 * standard password database.
5110 * In theory we could skip the shadow call completely
5111 * if euid != 0 but in practice we cannot know which
5112 * security measures are guarding the shadow databases
5113 * on a random platform.
5115 * Resist the urge to use additional shadow interfaces.
5116 * Divert the urge to writing an extension instead.
5119 # ifdef HAS_GETSPNAM
5121 struct spwd *spwent;
5122 int saverrno; /* Save and restore errno so that
5123 * underprivileged attempts seem
5124 * to have never made the unsccessful
5125 * attempt to retrieve the shadow password. */
5128 spwent = getspnam(pwent->pw_name);
5130 if (spwent && spwent->sp_pwdp)
5131 sv_setpv(sv, spwent->sp_pwdp);
5135 if (!SvPOK(sv)) /* Use the standard password, then. */
5136 sv_setpv(sv, pwent->pw_passwd);
5139 # ifndef INCOMPLETE_TAINTS
5140 /* passwd is tainted because user himself can diddle with it.
5141 * admittedly not much and in a very limited way, but nevertheless. */
5145 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5146 # if Uid_t_sign <= 0
5147 sv_setiv(sv, (IV)pwent->pw_uid);
5149 sv_setuv(sv, (UV)pwent->pw_uid);
5152 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5153 # if Uid_t_sign <= 0
5154 sv_setiv(sv, (IV)pwent->pw_gid);
5156 sv_setuv(sv, (UV)pwent->pw_gid);
5158 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5159 * because of the poor interface of the Perl getpw*(),
5160 * not because there's some standard/convention saying so.
5161 * A better interface would have been to return a hash,
5162 * but we are accursed by our history, alas. --jhi. */
5163 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5165 sv_setiv(sv, (IV)pwent->pw_change);
5168 sv_setiv(sv, (IV)pwent->pw_quota);
5171 sv_setpv(sv, pwent->pw_age);
5176 /* pw_class and pw_comment are mutually exclusive--.
5177 * see the above note for pw_change, pw_quota, and pw_age. */
5178 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5180 sv_setpv(sv, pwent->pw_class);
5183 sv_setpv(sv, pwent->pw_comment);
5187 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5189 sv_setpv(sv, pwent->pw_gecos);
5191 # ifndef INCOMPLETE_TAINTS
5192 /* pw_gecos is tainted because user himself can diddle with it. */
5196 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5197 sv_setpv(sv, pwent->pw_dir);
5199 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5200 sv_setpv(sv, pwent->pw_shell);
5201 # ifndef INCOMPLETE_TAINTS
5202 /* pw_shell is tainted because user himself can diddle with it. */
5207 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5208 sv_setiv(sv, (IV)pwent->pw_expire);
5213 DIE(aTHX_ PL_no_func, "getpwent");
5219 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5224 DIE(aTHX_ PL_no_func, "setpwent");
5230 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5235 DIE(aTHX_ PL_no_func, "endpwent");
5244 DIE(aTHX_ PL_no_func, "getgrnam");
5253 DIE(aTHX_ PL_no_func, "getgrgid");
5261 I32 which = PL_op->op_type;
5262 register char **elem;
5264 struct group *grent;
5267 if (which == OP_GGRNAM)
5268 grent = (struct group *)getgrnam(POPpbytex);
5269 else if (which == OP_GGRGID)
5270 grent = (struct group *)getgrgid(POPi);
5273 grent = (struct group *)getgrent();
5275 DIE(aTHX_ PL_no_func, "getgrent");
5279 if (GIMME != G_ARRAY) {
5280 PUSHs(sv = sv_newmortal());
5282 if (which == OP_GGRNAM)
5283 sv_setiv(sv, (IV)grent->gr_gid);
5285 sv_setpv(sv, grent->gr_name);
5291 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5292 sv_setpv(sv, grent->gr_name);
5294 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5296 sv_setpv(sv, grent->gr_passwd);
5299 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5300 sv_setiv(sv, (IV)grent->gr_gid);
5302 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5303 for (elem = grent->gr_mem; elem && *elem; elem++) {
5304 sv_catpv(sv, *elem);
5306 sv_catpvn(sv, " ", 1);
5312 DIE(aTHX_ PL_no_func, "getgrent");
5318 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5323 DIE(aTHX_ PL_no_func, "setgrent");
5329 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5334 DIE(aTHX_ PL_no_func, "endgrent");
5344 if (!(tmps = PerlProc_getlogin()))
5346 PUSHp(tmps, strlen(tmps));
5349 DIE(aTHX_ PL_no_func, "getlogin");
5353 /* Miscellaneous. */
5358 dSP; dMARK; dORIGMARK; dTARGET;
5359 register I32 items = SP - MARK;
5360 unsigned long a[20];
5366 while (++MARK <= SP) {
5367 if (SvTAINTED(*MARK)) {
5373 TAINT_PROPER("syscall");
5376 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5377 * or where sizeof(long) != sizeof(char*). But such machines will
5378 * not likely have syscall implemented either, so who cares?
5380 while (++MARK <= SP) {
5381 if (SvNIOK(*MARK) || !i)
5382 a[i++] = SvIV(*MARK);
5383 else if (*MARK == &PL_sv_undef)
5386 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5392 DIE(aTHX_ "Too many args to syscall");
5394 DIE(aTHX_ "Too few args to syscall");
5396 retval = syscall(a[0]);
5399 retval = syscall(a[0],a[1]);
5402 retval = syscall(a[0],a[1],a[2]);
5405 retval = syscall(a[0],a[1],a[2],a[3]);
5408 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5411 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5414 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5417 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5421 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5424 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5427 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5431 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5435 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5439 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5440 a[10],a[11],a[12],a[13]);
5442 #endif /* atarist */
5448 DIE(aTHX_ PL_no_func, "syscall");
5452 #ifdef FCNTL_EMULATE_FLOCK
5454 /* XXX Emulate flock() with fcntl().
5455 What's really needed is a good file locking module.
5459 fcntl_emulate_flock(int fd, int operation)
5463 switch (operation & ~LOCK_NB) {
5465 flock.l_type = F_RDLCK;
5468 flock.l_type = F_WRLCK;
5471 flock.l_type = F_UNLCK;
5477 flock.l_whence = SEEK_SET;
5478 flock.l_start = flock.l_len = (Off_t)0;
5480 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5483 #endif /* FCNTL_EMULATE_FLOCK */
5485 #ifdef LOCKF_EMULATE_FLOCK
5487 /* XXX Emulate flock() with lockf(). This is just to increase
5488 portability of scripts. The calls are not completely
5489 interchangeable. What's really needed is a good file
5493 /* The lockf() constants might have been defined in <unistd.h>.
5494 Unfortunately, <unistd.h> causes troubles on some mixed
5495 (BSD/POSIX) systems, such as SunOS 4.1.3.
5497 Further, the lockf() constants aren't POSIX, so they might not be
5498 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5499 just stick in the SVID values and be done with it. Sigh.
5503 # define F_ULOCK 0 /* Unlock a previously locked region */
5506 # define F_LOCK 1 /* Lock a region for exclusive use */
5509 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5512 # define F_TEST 3 /* Test a region for other processes locks */
5516 lockf_emulate_flock(int fd, int operation)
5522 /* flock locks entire file so for lockf we need to do the same */
5524 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5525 if (pos > 0) /* is seekable and needs to be repositioned */
5526 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5527 pos = -1; /* seek failed, so don't seek back afterwards */
5530 switch (operation) {
5532 /* LOCK_SH - get a shared lock */
5534 /* LOCK_EX - get an exclusive lock */
5536 i = lockf (fd, F_LOCK, 0);
5539 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5540 case LOCK_SH|LOCK_NB:
5541 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5542 case LOCK_EX|LOCK_NB:
5543 i = lockf (fd, F_TLOCK, 0);
5545 if ((errno == EAGAIN) || (errno == EACCES))
5546 errno = EWOULDBLOCK;
5549 /* LOCK_UN - unlock (non-blocking is a no-op) */
5551 case LOCK_UN|LOCK_NB:
5552 i = lockf (fd, F_ULOCK, 0);
5555 /* Default - can't decipher operation */
5562 if (pos > 0) /* need to restore position of the handle */
5563 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5568 #endif /* LOCKF_EMULATE_FLOCK */