3 * Copyright (c) 1991-2002, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
18 #define PERL_IN_PP_SYS_C
22 /* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
24 * The API is from SysV.
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
31 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
40 extern "C" int syscall(unsigned long,...);
45 # include <sys/wait.h>
49 # include <sys/resource.h>
58 # include <sys/select.h>
62 /* XXX Configure test needed.
63 h_errno might not be a simple 'int', especially for multi-threaded
64 applications, see "extern int errno in perl.h". Creating such
65 a test requires taking into account the differences between
66 compiling multithreaded and singlethreaded ($ccflags et al).
67 HOST_NOT_FOUND is typically defined in <netdb.h>.
69 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
78 struct passwd *getpwnam (char *);
79 struct passwd *getpwuid (Uid_t);
84 struct passwd *getpwent (void);
85 #elif defined (VMS) && defined (my_getpwent)
86 struct passwd *Perl_my_getpwent (void);
95 struct group *getgrnam (char *);
96 struct group *getgrgid (Gid_t);
100 struct group *getgrent (void);
106 # if defined(_MSC_VER) || defined(__MINGW32__)
107 # include <sys/utime.h>
114 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
117 # define my_chsize PerlLIO_chsize
122 #else /* no flock() */
124 /* fcntl.h might not have been included, even if it exists, because
125 the current Configure only sets I_FCNTL if it's needed to pick up
126 the *_OK constants. Make sure it has been included before testing
127 the fcntl() locking constants. */
128 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
132 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
133 # define FLOCK fcntl_emulate_flock
134 # define FCNTL_EMULATE_FLOCK
135 # else /* no flock() or fcntl(F_SETLK,...) */
137 # define FLOCK lockf_emulate_flock
138 # define LOCKF_EMULATE_FLOCK
140 # endif /* no flock() or fcntl(F_SETLK,...) */
143 static int FLOCK (int, int);
146 * These are the flock() constants. Since this sytems doesn't have
147 * flock(), the values of the constants are probably not available.
161 # endif /* emulating flock() */
163 #endif /* no flock() */
166 static char zero_but_true[ZBTLEN + 1] = "0 but true";
168 #if defined(I_SYS_ACCESS) && !defined(R_OK)
169 # include <sys/access.h>
172 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
173 # define FD_CLOEXEC 1 /* NeXT needs this */
178 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
179 #undef PERL_EFF_ACCESS_W_OK
180 #undef PERL_EFF_ACCESS_X_OK
182 /* F_OK unused: if stat() cannot find it... */
184 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
185 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
186 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
187 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
188 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
191 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
192 # ifdef I_SYS_SECURITY
193 # include <sys/security.h>
197 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
198 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
199 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
202 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
203 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
204 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
208 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
210 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
211 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
212 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
215 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
216 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
217 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
220 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
222 Uid_t ruid = getuid();
223 Uid_t euid = geteuid();
224 Gid_t rgid = getgid();
225 Gid_t egid = getegid();
229 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
230 Perl_croak(aTHX_ "switching effective uid is not implemented");
233 if (setreuid(euid, ruid))
236 if (setresuid(euid, ruid, (Uid_t)-1))
239 Perl_croak(aTHX_ "entering effective uid failed");
242 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
243 Perl_croak(aTHX_ "switching effective gid is not implemented");
246 if (setregid(egid, rgid))
249 if (setresgid(egid, rgid, (Gid_t)-1))
252 Perl_croak(aTHX_ "entering effective gid failed");
255 res = access(path, mode);
258 if (setreuid(ruid, euid))
261 if (setresuid(ruid, euid, (Uid_t)-1))
264 Perl_croak(aTHX_ "leaving effective uid failed");
267 if (setregid(rgid, egid))
270 if (setresgid(rgid, egid, (Gid_t)-1))
273 Perl_croak(aTHX_ "leaving effective gid failed");
278 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
279 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
280 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
283 #if !defined(PERL_EFF_ACCESS_R_OK)
284 /* With it or without it: anyway you get a warning: either that
285 it is unused, or it is declared static and never defined.
288 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
290 Perl_croak(aTHX_ "switching effective uid is not implemented");
306 if (PL_op->op_private & OPpOPEN_IN_RAW)
308 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
310 fp = PerlProc_popen(tmps, mode);
313 if (PL_curcop->cop_io) {
314 type = SvPV_nolen(PL_curcop->cop_io);
317 PerlIO_apply_layers(aTHX_ fp,mode,type);
319 if (gimme == G_VOID) {
321 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
325 else if (gimme == G_SCALAR) {
327 PL_rs = &PL_sv_undef;
328 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
329 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
341 if (sv_gets(sv, fp, 0) == Nullch) {
345 XPUSHs(sv_2mortal(sv));
346 if (SvLEN(sv) - SvCUR(sv) > 20) {
347 SvLEN_set(sv, SvCUR(sv)+1);
348 Renew(SvPVX(sv), SvLEN(sv), char);
353 STATUS_NATIVE_SET(PerlProc_pclose(fp));
354 TAINT; /* "I believe that this is not gratuitous!" */
357 STATUS_NATIVE_SET(-1);
358 if (gimme == G_SCALAR)
368 tryAMAGICunTARGET(iter, -1);
370 /* Note that we only ever get here if File::Glob fails to load
371 * without at the same time croaking, for some reason, or if
372 * perl was built with PERL_EXTERNAL_GLOB */
379 * The external globbing program may use things we can't control,
380 * so for security reasons we must assume the worst.
383 taint_proper(PL_no_security, "glob");
387 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
388 PL_last_in_gv = (GV*)*PL_stack_sp--;
390 SAVESPTR(PL_rs); /* This is not permanent, either. */
391 PL_rs = sv_2mortal(newSVpvn("\000", 1));
394 *SvPVX(PL_rs) = '\n';
398 result = do_readline();
405 PL_last_in_gv = cGVOP_gv;
406 return do_readline();
415 if (SP - MARK != 1) {
417 do_join(TARG, &PL_sv_no, MARK, SP);
424 tmps = SvPV(tmpsv, len);
427 (void)SvUPGRADE(error, SVt_PV);
428 if (SvPOK(error) && SvCUR(error))
429 sv_catpv(error, "\t...caught");
431 tmps = SvPV(tmpsv, len);
434 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
436 Perl_warn(aTHX_ "%"SVf, tmpsv);
448 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
450 if (SP - MARK != 1) {
452 do_join(TARG, &PL_sv_no, MARK, SP);
454 tmps = SvPV(tmpsv, len);
460 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
464 (void)SvUPGRADE(error, SVt_PV);
465 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
467 SvSetSV(error,tmpsv);
468 else if (sv_isobject(error)) {
469 HV *stash = SvSTASH(SvRV(error));
470 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
472 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
473 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
480 call_sv((SV*)GvCV(gv),
481 G_SCALAR|G_EVAL|G_KEEPERR);
482 sv_setsv(error,*PL_stack_sp--);
485 DIE(aTHX_ Nullformat);
488 if (SvPOK(error) && SvCUR(error))
489 sv_catpv(error, "\t...propagated");
491 tmps = SvPV(tmpsv, len);
495 tmpsv = sv_2mortal(newSVpvn("Died", 4));
497 DIE(aTHX_ "%"SVf, tmpsv);
517 DIE(aTHX_ PL_no_usym, "filehandle");
518 if ((io = GvIOp(gv)))
519 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
521 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
522 /* Method's args are same as ours ... */
523 /* ... except handle is replaced by the object */
524 *MARK-- = SvTIED_obj((SV*)io, mg);
528 call_method("OPEN", G_SCALAR);
541 tmps = SvPV(sv, len);
542 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
545 PUSHi( (I32)PL_forkprocess );
546 else if (PL_forkprocess == 0) /* we are a new child */
565 if (gv && (io = GvIO(gv))
566 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
569 XPUSHs(SvTIED_obj((SV*)io, mg));
572 call_method("CLOSE", G_SCALAR);
578 PUSHs(boolSV(do_close(gv, TRUE)));
598 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
599 DIE(aTHX_ PL_no_usym, "filehandle");
604 do_close(rgv, FALSE);
606 do_close(wgv, FALSE);
608 if (PerlProc_pipe(fd) < 0)
611 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
612 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
613 IoOFP(rstio) = IoIFP(rstio);
614 IoIFP(wstio) = IoOFP(wstio);
615 IoTYPE(rstio) = IoTYPE_RDONLY;
616 IoTYPE(wstio) = IoTYPE_WRONLY;
618 if (!IoIFP(rstio) || !IoOFP(wstio)) {
619 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
620 else PerlLIO_close(fd[0]);
621 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
622 else PerlLIO_close(fd[1]);
625 #if defined(HAS_FCNTL) && defined(F_SETFD)
626 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
627 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
634 DIE(aTHX_ PL_no_func, "pipe");
650 if (gv && (io = GvIO(gv))
651 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
654 XPUSHs(SvTIED_obj((SV*)io, mg));
657 call_method("FILENO", G_SCALAR);
663 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
664 /* Can't do this because people seem to do things like
665 defined(fileno($foo)) to check whether $foo is a valid fh.
666 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
667 report_evil_fh(gv, io, PL_op->op_type);
672 PUSHi(PerlIO_fileno(fp));
683 anum = PerlLIO_umask(0);
684 (void)PerlLIO_umask(anum);
687 anum = PerlLIO_umask(POPi);
688 TAINT_PROPER("umask");
691 /* Only DIE if trying to restrict permissions on `user' (self).
692 * Otherwise it's harmless and more useful to just return undef
693 * since 'group' and 'other' concepts probably don't exist here. */
694 if (MAXARG >= 1 && (POPi & 0700))
695 DIE(aTHX_ "umask not implemented");
696 XPUSHs(&PL_sv_undef);
718 if (gv && (io = GvIO(gv))
719 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
722 XPUSHs(SvTIED_obj((SV*)io, mg));
727 call_method("BINMODE", G_SCALAR);
734 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
735 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
736 report_evil_fh(gv, io, PL_op->op_type);
741 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
742 (discp) ? SvPV_nolen(discp) : Nullch)) {
760 I32 markoff = MARK - PL_stack_base;
762 int how = PERL_MAGIC_tied;
767 switch(SvTYPE(varsv)) {
769 methname = "TIEHASH";
770 HvEITER((HV *)varsv) = Null(HE *);
773 methname = "TIEARRAY";
776 #ifdef GV_UNIQUE_CHECK
777 if (GvUNIQUE((GV*)varsv)) {
778 Perl_croak(aTHX_ "Attempt to tie unique GV");
781 methname = "TIEHANDLE";
782 how = PERL_MAGIC_tiedscalar;
783 /* For tied filehandles, we apply tiedscalar magic to the IO
784 slot of the GP rather than the GV itself. AMS 20010812 */
786 GvIOp(varsv) = newIO();
787 varsv = (SV *)GvIOp(varsv);
790 methname = "TIESCALAR";
791 how = PERL_MAGIC_tiedscalar;
795 if (sv_isobject(*MARK)) {
797 PUSHSTACKi(PERLSI_MAGIC);
799 EXTEND(SP,(I32)items);
803 call_method(methname, G_SCALAR);
806 /* Not clear why we don't call call_method here too.
807 * perhaps to get different error message ?
809 stash = gv_stashsv(*MARK, FALSE);
810 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
811 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
812 methname, SvPV(*MARK,n_a));
815 PUSHSTACKi(PERLSI_MAGIC);
817 EXTEND(SP,(I32)items);
821 call_sv((SV*)GvCV(gv), G_SCALAR);
827 if (sv_isobject(sv)) {
828 sv_unmagic(varsv, how);
829 /* Croak if a self-tie on an aggregate is attempted. */
830 if (varsv == SvRV(sv) &&
831 (SvTYPE(varsv) == SVt_PVAV ||
832 SvTYPE(varsv) == SVt_PVHV))
834 "Self-ties of arrays and hashes are not supported");
835 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
838 SP = PL_stack_base + markoff;
848 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
849 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
851 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
854 if ((mg = SvTIED_mg(sv, how))) {
855 SV *obj = SvRV(mg->mg_obj);
859 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
860 isGV(gv) && (cv = GvCV(gv))) {
862 XPUSHs(SvTIED_obj((SV*)gv, mg));
863 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
866 call_sv((SV *)cv, G_VOID);
870 else if (ckWARN(WARN_UNTIE)) {
871 if (mg && SvREFCNT(obj) > 1)
872 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
873 "untie attempted while %"UVuf" inner references still exist",
874 (UV)SvREFCNT(obj) - 1 ) ;
877 sv_unmagic(sv, how) ;
887 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
888 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
890 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
893 if ((mg = SvTIED_mg(sv, how))) {
894 SV *osv = SvTIED_obj(sv, mg);
895 if (osv == mg->mg_obj)
896 osv = sv_mortalcopy(osv);
914 sv = sv_mortalcopy(&PL_sv_no);
915 sv_setpv(sv, "AnyDBM_File");
916 stash = gv_stashsv(sv, FALSE);
917 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
919 require_pv("AnyDBM_File.pm");
921 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
922 DIE(aTHX_ "No dbm on this machine");
932 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
934 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
937 call_sv((SV*)GvCV(gv), G_SCALAR);
940 if (!sv_isobject(TOPs)) {
945 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
948 call_sv((SV*)GvCV(gv), G_SCALAR);
952 if (sv_isobject(TOPs)) {
953 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
954 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
976 struct timeval timebuf;
977 struct timeval *tbuf = &timebuf;
981 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
986 # if BYTEORDER & 0xf0000
987 # define ORDERBYTE (0x88888888 - BYTEORDER)
989 # define ORDERBYTE (0x4444 - BYTEORDER)
995 for (i = 1; i <= 3; i++) {
1003 /* little endians can use vecs directly */
1004 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1011 masksize = NFDBITS / NBBY;
1013 masksize = sizeof(long); /* documented int, everyone seems to use long */
1015 Zero(&fd_sets[0], 4, char*);
1018 # if SELECT_MIN_BITS > 1
1019 /* If SELECT_MIN_BITS is greater than one we most probably will want
1020 * to align the sizes with SELECT_MIN_BITS/8 because for example
1021 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1022 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1023 * on (sets/tests/clears bits) is 32 bits. */
1024 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1026 growsize = sizeof(fd_set);
1034 timebuf.tv_sec = (long)value;
1035 value -= (NV)timebuf.tv_sec;
1036 timebuf.tv_usec = (long)(value * 1000000.0);
1039 tbuf = Null(struct timeval*);
1041 for (i = 1; i <= 3; i++) {
1047 else if (!SvPOK(sv))
1048 SvPV_force(sv,n_a); /* force string conversion */
1051 Sv_Grow(sv, growsize);
1055 while (++j <= growsize) {
1059 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1061 New(403, fd_sets[i], growsize, char);
1062 for (offset = 0; offset < growsize; offset += masksize) {
1063 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1064 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1067 fd_sets[i] = SvPVX(sv);
1071 nfound = PerlSock_select(
1073 (Select_fd_set_t) fd_sets[1],
1074 (Select_fd_set_t) fd_sets[2],
1075 (Select_fd_set_t) fd_sets[3],
1077 for (i = 1; i <= 3; i++) {
1080 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1082 for (offset = 0; offset < growsize; offset += masksize) {
1083 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1084 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1086 Safefree(fd_sets[i]);
1093 if (GIMME == G_ARRAY && tbuf) {
1094 value = (NV)(timebuf.tv_sec) +
1095 (NV)(timebuf.tv_usec) / 1000000.0;
1096 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1097 sv_setnv(sv, value);
1101 DIE(aTHX_ "select not implemented");
1106 Perl_setdefout(pTHX_ GV *gv)
1109 (void)SvREFCNT_inc(gv);
1111 SvREFCNT_dec(PL_defoutgv);
1118 GV *newdefout, *egv;
1121 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1123 egv = GvEGV(PL_defoutgv);
1128 XPUSHs(&PL_sv_undef);
1130 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1131 if (gvp && *gvp == egv) {
1132 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1136 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1141 if (!GvIO(newdefout))
1142 gv_IOadd(newdefout);
1143 setdefout(newdefout);
1161 if (gv && (io = GvIO(gv))
1162 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1164 I32 gimme = GIMME_V;
1166 XPUSHs(SvTIED_obj((SV*)io, mg));
1169 call_method("GETC", gimme);
1172 if (gimme == G_SCALAR)
1173 SvSetMagicSV_nosteal(TARG, TOPs);
1176 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1177 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1178 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1179 report_evil_fh(gv, io, PL_op->op_type);
1183 sv_setpv(TARG, " ");
1184 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1185 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1186 /* Find out how many bytes the char needs */
1187 Size_t len = UTF8SKIP(SvPVX(TARG));
1190 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1191 SvCUR_set(TARG,1+len);
1201 return pp_sysread();
1205 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1207 register PERL_CONTEXT *cx;
1208 I32 gimme = GIMME_V;
1209 AV* padlist = CvPADLIST(cv);
1210 SV** svp = AvARRAY(padlist);
1216 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1218 SAVEVPTR(PL_curpad);
1219 PL_curpad = AvARRAY((AV*)svp[1]);
1221 setdefout(gv); /* locally select filehandle so $% et al work */
1254 SV *tmpsv = sv_newmortal();
1255 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1256 name = SvPV_nolen(tmpsv);
1259 DIE(aTHX_ "Undefined format \"%s\" called", name);
1260 DIE(aTHX_ "Not a format reference");
1263 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1265 IoFLAGS(io) &= ~IOf_DIDTOP;
1266 return doform(cv,gv,PL_op->op_next);
1272 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1273 register IO *io = GvIOp(gv);
1274 PerlIO *ofp = IoOFP(io);
1278 register PERL_CONTEXT *cx;
1280 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1281 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1284 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1285 PL_formtarget != PL_toptarget)
1289 if (!IoTOP_GV(io)) {
1293 if (!IoTOP_NAME(io)) {
1294 if (!IoFMT_NAME(io))
1295 IoFMT_NAME(io) = savepv(GvNAME(gv));
1296 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1297 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1298 if ((topgv && GvFORM(topgv)) ||
1299 !gv_fetchpv("top",FALSE,SVt_PVFM))
1300 IoTOP_NAME(io) = savepv(SvPVX(topname));
1302 IoTOP_NAME(io) = savepv("top");
1304 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1305 if (!topgv || !GvFORM(topgv)) {
1306 IoLINES_LEFT(io) = 100000000;
1309 IoTOP_GV(io) = topgv;
1311 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1312 I32 lines = IoLINES_LEFT(io);
1313 char *s = SvPVX(PL_formtarget);
1314 if (lines <= 0) /* Yow, header didn't even fit!!! */
1316 while (lines-- > 0) {
1317 s = strchr(s, '\n');
1323 STRLEN save = SvCUR(PL_formtarget);
1324 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1325 do_print(PL_formtarget, ofp);
1326 SvCUR_set(PL_formtarget, save);
1327 sv_chop(PL_formtarget, s);
1328 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1331 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1332 do_print(PL_formfeed, ofp);
1333 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1335 PL_formtarget = PL_toptarget;
1336 IoFLAGS(io) |= IOf_DIDTOP;
1339 DIE(aTHX_ "bad top format reference");
1344 SV *sv = sv_newmortal();
1345 gv_efullname4(sv, fgv, Nullch, FALSE);
1346 name = SvPV_nolen(sv);
1349 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1352 DIE(aTHX_ "Undefined top format called");
1356 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1357 return doform(cv,gv,PL_op);
1361 POPBLOCK(cx,PL_curpm);
1367 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1369 /* integrate with report_evil_fh()? */
1372 SV* sv = sv_newmortal();
1373 gv_efullname4(sv, gv, Nullch, FALSE);
1374 name = SvPV_nolen(sv);
1377 Perl_warner(aTHX_ packWARN(WARN_IO),
1378 "Filehandle %s opened only for input", name);
1380 Perl_warner(aTHX_ packWARN(WARN_IO),
1381 "Filehandle opened only for input");
1383 else if (ckWARN(WARN_CLOSED))
1384 report_evil_fh(gv, io, PL_op->op_type);
1389 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1390 if (ckWARN(WARN_IO))
1391 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1393 if (!do_print(PL_formtarget, fp))
1396 FmLINES(PL_formtarget) = 0;
1397 SvCUR_set(PL_formtarget, 0);
1398 *SvEND(PL_formtarget) = '\0';
1399 if (IoFLAGS(io) & IOf_FLUSH)
1400 (void)PerlIO_flush(fp);
1405 PL_formtarget = PL_bodytarget;
1407 return pop_return();
1412 dSP; dMARK; dORIGMARK;
1419 if (PL_op->op_flags & OPf_STACKED)
1424 if (gv && (io = GvIO(gv))
1425 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1427 if (MARK == ORIGMARK) {
1430 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1434 *MARK = SvTIED_obj((SV*)io, mg);
1437 call_method("PRINTF", G_SCALAR);
1440 MARK = ORIGMARK + 1;
1447 if (!(io = GvIO(gv))) {
1448 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1449 report_evil_fh(gv, io, PL_op->op_type);
1450 SETERRNO(EBADF,RMS$_IFI);
1453 else if (!(fp = IoOFP(io))) {
1454 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1455 /* integrate with report_evil_fh()? */
1459 gv_efullname4(sv, gv, Nullch, FALSE);
1460 name = SvPV_nolen(sv);
1463 Perl_warner(aTHX_ packWARN(WARN_IO),
1464 "Filehandle %s opened only for input", name);
1466 Perl_warner(aTHX_ packWARN(WARN_IO),
1467 "Filehandle opened only for input");
1469 else if (ckWARN(WARN_CLOSED))
1470 report_evil_fh(gv, io, PL_op->op_type);
1472 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1476 do_sprintf(sv, SP - MARK, MARK + 1);
1477 if (!do_print(sv, fp))
1480 if (IoFLAGS(io) & IOf_FLUSH)
1481 if (PerlIO_flush(fp) == EOF)
1492 PUSHs(&PL_sv_undef);
1513 /* Need TIEHANDLE method ? */
1515 tmps = SvPV(sv, len);
1516 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1517 IoLINES(GvIOp(gv)) = 0;
1521 PUSHs(&PL_sv_undef);
1528 dSP; dMARK; dORIGMARK; dTARGET;
1535 Sock_size_t bufsize;
1542 bool charstart = FALSE;
1543 STRLEN charskip = 0;
1547 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1548 && gv && (io = GvIO(gv))
1549 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1554 *MARK = SvTIED_obj((SV*)io, mg);
1556 call_method("READ", G_SCALAR);
1569 sv_setpvn(bufsv, "", 0);
1570 length = SvIVx(*++MARK);
1573 offset = SvIVx(*++MARK);
1577 if (!io || !IoIFP(io))
1579 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1580 buffer = SvPVutf8_force(bufsv, blen);
1581 /* UTF8 may not have been set if they are all low bytes */
1585 buffer = SvPV_force(bufsv, blen);
1588 DIE(aTHX_ "Negative length");
1596 if (PL_op->op_type == OP_RECV) {
1597 char namebuf[MAXPATHLEN];
1598 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1599 bufsize = sizeof (struct sockaddr_in);
1601 bufsize = sizeof namebuf;
1603 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1607 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1608 /* 'offset' means 'flags' here */
1609 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1610 (struct sockaddr *)namebuf, &bufsize);
1614 /* Bogus return without padding */
1615 bufsize = sizeof (struct sockaddr_in);
1617 SvCUR_set(bufsv, count);
1618 *SvEND(bufsv) = '\0';
1619 (void)SvPOK_only(bufsv);
1623 /* This should not be marked tainted if the fp is marked clean */
1624 if (!(IoFLAGS(io) & IOf_UNTAINT))
1625 SvTAINTED_on(bufsv);
1627 sv_setpvn(TARG, namebuf, bufsize);
1632 if (PL_op->op_type == OP_RECV)
1633 DIE(aTHX_ PL_no_sock_func, "recv");
1635 if (DO_UTF8(bufsv)) {
1636 /* offset adjust in characters not bytes */
1637 blen = sv_len_utf8(bufsv);
1640 if (-offset > (int)blen)
1641 DIE(aTHX_ "Offset outside string");
1644 if (DO_UTF8(bufsv)) {
1645 /* convert offset-as-chars to offset-as-bytes */
1646 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1649 bufsize = SvCUR(bufsv);
1650 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1651 if (offset > bufsize) { /* Zero any newly allocated space */
1652 Zero(buffer+bufsize, offset-bufsize, char);
1654 buffer = buffer + offset;
1656 if (PL_op->op_type == OP_SYSREAD) {
1657 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1658 if (IoTYPE(io) == IoTYPE_SOCKET) {
1659 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1665 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1670 #ifdef HAS_SOCKET__bad_code_maybe
1671 if (IoTYPE(io) == IoTYPE_SOCKET) {
1672 char namebuf[MAXPATHLEN];
1673 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1674 bufsize = sizeof (struct sockaddr_in);
1676 bufsize = sizeof namebuf;
1678 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1679 (struct sockaddr *)namebuf, &bufsize);
1684 count = PerlIO_read(IoIFP(io), buffer, length);
1685 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1686 if (count == 0 && PerlIO_error(IoIFP(io)))
1690 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1692 /* integrate with report_evil_fh()? */
1695 SV* sv = sv_newmortal();
1696 gv_efullname4(sv, gv, Nullch, FALSE);
1697 name = SvPV_nolen(sv);
1700 Perl_warner(aTHX_ packWARN(WARN_IO),
1701 "Filehandle %s opened only for output", name);
1703 Perl_warner(aTHX_ packWARN(WARN_IO),
1704 "Filehandle opened only for output");
1708 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
1709 *SvEND(bufsv) = '\0';
1710 (void)SvPOK_only(bufsv);
1711 if (fp_utf8 && !IN_BYTES) {
1712 /* Look at utf8 we got back and count the characters */
1713 char *bend = buffer + count;
1714 while (buffer < bend) {
1716 skip = UTF8SKIP(buffer);
1719 if (buffer - charskip + skip > bend) {
1720 /* partial character - try for rest of it */
1721 length = skip - (bend-buffer);
1722 offset = bend - SvPVX(bufsv);
1734 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1735 provided amount read (count) was what was requested (length)
1737 if (got < wanted && count == length) {
1738 length = wanted - got;
1739 offset = bend - SvPVX(bufsv);
1742 /* return value is character count */
1747 /* This should not be marked tainted if the fp is marked clean */
1748 if (!(IoFLAGS(io) & IOf_UNTAINT))
1749 SvTAINTED_on(bufsv);
1762 int items = (SP - PL_stack_base) - TOPMARK;
1766 sv = sv_2mortal(newSViv(sv_len(*SP)));
1775 dSP; dMARK; dORIGMARK; dTARGET;
1786 if (PL_op->op_type == OP_SYSWRITE
1787 && gv && (io = GvIO(gv))
1788 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1793 *MARK = SvTIED_obj((SV*)io, mg);
1795 call_method("WRITE", G_SCALAR);
1806 #if Size_t_size > IVSIZE
1807 length = (Size_t)SvNVx(*++MARK);
1809 length = (Size_t)SvIVx(*++MARK);
1811 if ((SSize_t)length < 0)
1812 DIE(aTHX_ "Negative length");
1815 if (!io || !IoIFP(io)) {
1817 if (ckWARN(WARN_CLOSED))
1818 report_evil_fh(gv, io, PL_op->op_type);
1822 if (PerlIO_isutf8(IoIFP(io))) {
1823 buffer = SvPVutf8(bufsv, blen);
1827 sv_utf8_downgrade(bufsv, FALSE);
1828 buffer = SvPV(bufsv, blen);
1831 if (PL_op->op_type == OP_SYSWRITE) {
1833 if (DO_UTF8(bufsv)) {
1834 /* length and offset are in chars */
1835 blen = sv_len_utf8(bufsv);
1838 offset = SvIVx(*++MARK);
1840 if (-offset > (IV)blen)
1841 DIE(aTHX_ "Offset outside string");
1843 } else if (offset >= (IV)blen && blen > 0)
1844 DIE(aTHX_ "Offset outside string");
1847 if (length > blen - offset)
1848 length = blen - offset;
1849 if (DO_UTF8(bufsv)) {
1850 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1851 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1854 buffer = buffer+offset;
1856 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1857 if (IoTYPE(io) == IoTYPE_SOCKET) {
1858 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1864 /* See the note at doio.c:do_print about filesize limits. --jhi */
1865 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1870 else if (SP > MARK) {
1873 sockbuf = SvPVx(*++MARK, mlen);
1874 /* length is really flags */
1875 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1876 length, (struct sockaddr *)sockbuf, mlen);
1879 /* length is really flags */
1880 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1883 DIE(aTHX_ PL_no_sock_func, "send");
1889 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1890 #if Size_t_size > IVSIZE
1904 return pp_sysread();
1915 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1917 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1919 if (io && !IoIFP(io)) {
1920 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1922 IoFLAGS(io) &= ~IOf_START;
1923 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1924 sv_setpvn(GvSV(gv), "-", 1);
1925 SvSETMAGIC(GvSV(gv));
1927 else if (!nextargv(gv))
1932 gv = PL_last_in_gv; /* eof */
1935 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1937 if (gv && (io = GvIO(gv))
1938 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1941 XPUSHs(SvTIED_obj((SV*)io, mg));
1944 call_method("EOF", G_SCALAR);
1950 PUSHs(boolSV(!gv || do_eof(gv)));
1964 gv = PL_last_in_gv = (GV*)POPs;
1966 if (gv && (io = GvIO(gv))
1967 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1970 XPUSHs(SvTIED_obj((SV*)io, mg));
1973 call_method("TELL", G_SCALAR);
1979 #if LSEEKSIZE > IVSIZE
1980 PUSHn( do_tell(gv) );
1982 PUSHi( do_tell(gv) );
1989 return pp_sysseek();
1998 #if LSEEKSIZE > IVSIZE
1999 Off_t offset = (Off_t)SvNVx(POPs);
2001 Off_t offset = (Off_t)SvIVx(POPs);
2005 gv = PL_last_in_gv = (GV*)POPs;
2007 if (gv && (io = GvIO(gv))
2008 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2011 XPUSHs(SvTIED_obj((SV*)io, mg));
2012 #if LSEEKSIZE > IVSIZE
2013 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2015 XPUSHs(sv_2mortal(newSViv(offset)));
2017 XPUSHs(sv_2mortal(newSViv(whence)));
2020 call_method("SEEK", G_SCALAR);
2026 if (PL_op->op_type == OP_SEEK)
2027 PUSHs(boolSV(do_seek(gv, offset, whence)));
2029 Off_t sought = do_sysseek(gv, offset, whence);
2031 PUSHs(&PL_sv_undef);
2034 #if LSEEKSIZE > IVSIZE
2039 : newSVpvn(zero_but_true, ZBTLEN);
2040 PUSHs(sv_2mortal(sv));
2049 /* There seems to be no consensus on the length type of truncate()
2050 * and ftruncate(), both off_t and size_t have supporters. In
2051 * general one would think that when using large files, off_t is
2052 * at least as wide as size_t, so using an off_t should be okay. */
2053 /* XXX Configure probe for the length type of *truncate() needed XXX */
2056 #if Size_t_size > IVSIZE
2061 /* Checking for length < 0 is problematic as the type might or
2062 * might not be signed: if it is not, clever compilers will moan. */
2063 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2065 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2071 if (PL_op->op_flags & OPf_SPECIAL) {
2072 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2075 TAINT_PROPER("truncate");
2076 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2079 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
2081 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2083 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
2092 if (SvTYPE(sv) == SVt_PVGV) {
2093 tmpgv = (GV*)sv; /* *main::FRED for example */
2096 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2097 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2101 name = SvPV(sv, n_a);
2102 TAINT_PROPER("truncate");
2104 if (truncate(name, len) < 0)
2110 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2113 if (my_chsize(tmpfd, len) < 0)
2115 PerlLIO_close(tmpfd);
2124 SETERRNO(EBADF,RMS$_IFI);
2128 DIE(aTHX_ "truncate not implemented");
2141 unsigned int func = POPu;
2142 int optype = PL_op->op_type;
2146 IO *io = gv ? GvIOn(gv) : 0;
2148 if (!io || !argsv || !IoIFP(io)) {
2149 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2150 report_evil_fh(gv, io, PL_op->op_type);
2151 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
2155 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2158 s = SvPV_force(argsv, len);
2159 need = IOCPARM_LEN(func);
2161 s = Sv_Grow(argsv, need + 1);
2162 SvCUR_set(argsv, need);
2165 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2168 retval = SvIV(argsv);
2169 s = INT2PTR(char*,retval); /* ouch */
2172 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2174 if (optype == OP_IOCTL)
2176 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2178 DIE(aTHX_ "ioctl is not implemented");
2182 #if defined(OS2) && defined(__EMX__)
2183 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2185 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2189 if (s[SvCUR(argsv)] != 17)
2190 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2192 s[SvCUR(argsv)] = 0; /* put our null back */
2193 SvSETMAGIC(argsv); /* Assume it has changed */
2202 PUSHp(zero_but_true, ZBTLEN);
2207 DIE(aTHX_ "fcntl is not implemented");
2226 if (gv && (io = GvIO(gv)))
2233 (void)PerlIO_flush(fp);
2234 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2237 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2238 report_evil_fh(gv, io, PL_op->op_type);
2240 SETERRNO(EBADF,RMS$_IFI);
2245 DIE(aTHX_ PL_no_func, "flock()");
2257 int protocol = POPi;
2263 io = gv ? GvIOn(gv) : NULL;
2266 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2267 report_evil_fh(gv, io, PL_op->op_type);
2269 do_close(gv, FALSE);
2270 SETERRNO(EBADF,LIB$_INVARG);
2275 do_close(gv, FALSE);
2277 TAINT_PROPER("socket");
2278 fd = PerlSock_socket(domain, type, protocol);
2281 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2282 IoOFP(io) = PerlIO_fdopen(fd, "w");
2283 IoTYPE(io) = IoTYPE_SOCKET;
2284 if (!IoIFP(io) || !IoOFP(io)) {
2285 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2286 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2287 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2290 #if defined(HAS_FCNTL) && defined(F_SETFD)
2291 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2295 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2300 DIE(aTHX_ PL_no_sock_func, "socket");
2306 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2312 int protocol = POPi;
2319 io1 = gv1 ? GvIOn(gv1) : NULL;
2320 io2 = gv2 ? GvIOn(gv2) : NULL;
2321 if (!gv1 || !gv2 || !io1 || !io2) {
2322 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2324 report_evil_fh(gv1, io1, PL_op->op_type);
2326 report_evil_fh(gv1, io2, PL_op->op_type);
2329 do_close(gv1, FALSE);
2331 do_close(gv2, FALSE);
2336 do_close(gv1, FALSE);
2338 do_close(gv2, FALSE);
2340 TAINT_PROPER("socketpair");
2341 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2343 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2344 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2345 IoTYPE(io1) = IoTYPE_SOCKET;
2346 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2347 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2348 IoTYPE(io2) = IoTYPE_SOCKET;
2349 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2350 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2351 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2352 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2353 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2354 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2355 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2358 #if defined(HAS_FCNTL) && defined(F_SETFD)
2359 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2360 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2365 DIE(aTHX_ PL_no_sock_func, "socketpair");
2373 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2374 extern void GETPRIVMODE();
2375 extern void GETUSERMODE();
2380 register IO *io = GvIOn(gv);
2384 int mpeprivmode = 0;
2387 if (!io || !IoIFP(io))
2390 addr = SvPV(addrsv, len);
2391 TAINT_PROPER("bind");
2392 #ifdef MPE /* Deal with MPE bind() peculiarities */
2393 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2394 /* The address *MUST* stupidly be zero. */
2395 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2396 /* PRIV mode is required to bind() to ports < 1024. */
2397 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2398 ((struct sockaddr_in *)addr)->sin_port > 0) {
2399 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2404 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2405 (struct sockaddr *)addr, len) >= 0)
2408 #ifdef MPE /* Switch back to USER mode */
2419 if (ckWARN(WARN_CLOSED))
2420 report_evil_fh(gv, io, PL_op->op_type);
2421 SETERRNO(EBADF,SS$_IVCHAN);
2424 DIE(aTHX_ PL_no_sock_func, "bind");
2435 register IO *io = GvIOn(gv);
2438 if (!io || !IoIFP(io))
2441 addr = SvPV(addrsv, len);
2442 TAINT_PROPER("connect");
2443 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2449 if (ckWARN(WARN_CLOSED))
2450 report_evil_fh(gv, io, PL_op->op_type);
2451 SETERRNO(EBADF,SS$_IVCHAN);
2454 DIE(aTHX_ PL_no_sock_func, "connect");
2464 register IO *io = gv ? GvIOn(gv) : NULL;
2466 if (!gv || !io || !IoIFP(io))
2469 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2475 if (ckWARN(WARN_CLOSED))
2476 report_evil_fh(gv, io, PL_op->op_type);
2477 SETERRNO(EBADF,SS$_IVCHAN);
2480 DIE(aTHX_ PL_no_sock_func, "listen");
2492 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2493 Sock_size_t len = sizeof saddr;
2506 if (!gstio || !IoIFP(gstio))
2510 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2514 do_close(ngv, FALSE);
2515 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2516 /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
2517 fclose of IoOFP's FILE * - and hence leak memory.
2518 Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
2520 IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w");
2521 IoTYPE(nstio) = IoTYPE_SOCKET;
2522 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2523 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2524 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2525 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2528 #if defined(HAS_FCNTL) && defined(F_SETFD)
2529 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2530 fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
2534 len = sizeof saddr; /* EPOC somehow truncates info */
2535 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2538 PUSHp((char *)&saddr, len);
2542 if (ckWARN(WARN_CLOSED))
2543 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2544 SETERRNO(EBADF,SS$_IVCHAN);
2550 DIE(aTHX_ PL_no_sock_func, "accept");
2560 register IO *io = GvIOn(gv);
2562 if (!io || !IoIFP(io))
2565 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2569 if (ckWARN(WARN_CLOSED))
2570 report_evil_fh(gv, io, PL_op->op_type);
2571 SETERRNO(EBADF,SS$_IVCHAN);
2574 DIE(aTHX_ PL_no_sock_func, "shutdown");
2581 return pp_ssockopt();
2583 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2591 int optype = PL_op->op_type;
2594 unsigned int optname;
2600 if (optype == OP_GSOCKOPT)
2601 sv = sv_2mortal(NEWSV(22, 257));
2604 optname = (unsigned int) POPi;
2605 lvl = (unsigned int) POPi;
2609 if (!io || !IoIFP(io))
2612 fd = PerlIO_fileno(IoIFP(io));
2616 (void)SvPOK_only(sv);
2620 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2635 aint = (int)SvIV(sv);
2639 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2648 if (ckWARN(WARN_CLOSED))
2649 report_evil_fh(gv, io, optype);
2650 SETERRNO(EBADF,SS$_IVCHAN);
2655 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2662 return pp_getpeername();
2664 DIE(aTHX_ PL_no_sock_func, "getsockname");
2672 int optype = PL_op->op_type;
2676 register IO *io = GvIOn(gv);
2679 if (!io || !IoIFP(io))
2682 sv = sv_2mortal(NEWSV(22, 257));
2683 (void)SvPOK_only(sv);
2687 fd = PerlIO_fileno(IoIFP(io));
2689 case OP_GETSOCKNAME:
2690 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2693 case OP_GETPEERNAME:
2694 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2696 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2698 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";
2699 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2700 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2701 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2702 sizeof(u_short) + sizeof(struct in_addr))) {
2709 #ifdef BOGUS_GETNAME_RETURN
2710 /* Interactive Unix, getpeername() and getsockname()
2711 does not return valid namelen */
2712 if (len == BOGUS_GETNAME_RETURN)
2713 len = sizeof(struct sockaddr);
2721 if (ckWARN(WARN_CLOSED))
2722 report_evil_fh(gv, io, optype);
2723 SETERRNO(EBADF,SS$_IVCHAN);
2728 DIE(aTHX_ PL_no_sock_func, "getpeername");
2747 if (PL_op->op_flags & OPf_REF) {
2749 if (PL_op->op_type == OP_LSTAT) {
2750 if (gv != PL_defgv) {
2751 if (ckWARN(WARN_IO))
2752 Perl_warner(aTHX_ packWARN(WARN_IO),
2753 "lstat() on filehandle %s", GvENAME(gv));
2754 } else if (PL_laststype != OP_LSTAT)
2755 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2759 if (gv != PL_defgv) {
2760 PL_laststype = OP_STAT;
2762 sv_setpv(PL_statname, "");
2763 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2764 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2766 if (PL_laststatval < 0) {
2767 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2768 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2774 if (SvTYPE(sv) == SVt_PVGV) {
2778 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2780 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2781 Perl_warner(aTHX_ packWARN(WARN_IO),
2782 "lstat() on filehandle %s", GvENAME(gv));
2785 sv_setpv(PL_statname, SvPV(sv,n_a));
2788 PL_laststype = PL_op->op_type;
2789 if (PL_op->op_type == OP_LSTAT)
2790 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2793 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2794 if (PL_laststatval < 0) {
2795 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2796 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2802 if (gimme != G_ARRAY) {
2803 if (gimme != G_VOID)
2804 XPUSHs(boolSV(max));
2810 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2811 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2812 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2813 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2814 #if Uid_t_size > IVSIZE
2815 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2817 # if Uid_t_sign <= 0
2818 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2820 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2823 #if Gid_t_size > IVSIZE
2824 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2826 # if Gid_t_sign <= 0
2827 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2829 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2832 #ifdef USE_STAT_RDEV
2833 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2835 PUSHs(sv_2mortal(newSVpvn("", 0)));
2837 #if Off_t_size > IVSIZE
2838 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2840 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2843 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2844 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2845 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2847 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2848 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2849 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2851 #ifdef USE_STAT_BLOCKS
2852 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2853 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2855 PUSHs(sv_2mortal(newSVpvn("", 0)));
2856 PUSHs(sv_2mortal(newSVpvn("", 0)));
2866 #if defined(HAS_ACCESS) && defined(R_OK)
2868 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2869 result = access(TOPpx, R_OK);
2884 if (cando(S_IRUSR, 0, &PL_statcache))
2893 #if defined(HAS_ACCESS) && defined(W_OK)
2895 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2896 result = access(TOPpx, W_OK);
2911 if (cando(S_IWUSR, 0, &PL_statcache))
2920 #if defined(HAS_ACCESS) && defined(X_OK)
2922 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2923 result = access(TOPpx, X_OK);
2938 if (cando(S_IXUSR, 0, &PL_statcache))
2947 #ifdef PERL_EFF_ACCESS_R_OK
2949 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2950 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2965 if (cando(S_IRUSR, 1, &PL_statcache))
2974 #ifdef PERL_EFF_ACCESS_W_OK
2976 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2977 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2992 if (cando(S_IWUSR, 1, &PL_statcache))
3001 #ifdef PERL_EFF_ACCESS_X_OK
3003 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
3004 result = PERL_EFF_ACCESS_X_OK(TOPpx);
3019 if (cando(S_IXUSR, 1, &PL_statcache))
3026 I32 result = my_stat();
3035 return pp_ftrowned();
3040 I32 result = my_stat();
3044 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3052 I32 result = my_stat();
3056 if (PL_statcache.st_size == 0)
3063 I32 result = my_stat();
3067 #if Off_t_size > IVSIZE
3068 PUSHn(PL_statcache.st_size);
3070 PUSHi(PL_statcache.st_size);
3077 I32 result = my_stat();
3081 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
3087 I32 result = my_stat();
3091 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
3097 I32 result = my_stat();
3101 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
3107 I32 result = my_stat();
3111 if (S_ISSOCK(PL_statcache.st_mode))
3118 I32 result = my_stat();
3122 if (S_ISCHR(PL_statcache.st_mode))
3129 I32 result = my_stat();
3133 if (S_ISBLK(PL_statcache.st_mode))
3140 I32 result = my_stat();
3144 if (S_ISREG(PL_statcache.st_mode))
3151 I32 result = my_stat();
3155 if (S_ISDIR(PL_statcache.st_mode))
3162 I32 result = my_stat();
3166 if (S_ISFIFO(PL_statcache.st_mode))
3173 I32 result = my_lstat();
3177 if (S_ISLNK(PL_statcache.st_mode))
3186 I32 result = my_stat();
3190 if (PL_statcache.st_mode & S_ISUID)
3200 I32 result = my_stat();
3204 if (PL_statcache.st_mode & S_ISGID)
3214 I32 result = my_stat();
3218 if (PL_statcache.st_mode & S_ISVTX)
3229 char *tmps = Nullch;
3232 if (PL_op->op_flags & OPf_REF)
3234 else if (isGV(TOPs))
3236 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3237 gv = (GV*)SvRV(POPs);
3239 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3241 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3242 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3243 else if (tmps && isDIGIT(*tmps))
3247 if (PerlLIO_isatty(fd))
3252 #if defined(atarist) /* this will work with atariST. Configure will
3253 make guesses for other systems. */
3254 # define FILE_base(f) ((f)->_base)
3255 # define FILE_ptr(f) ((f)->_ptr)
3256 # define FILE_cnt(f) ((f)->_cnt)
3257 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3267 register STDCHAR *s;
3274 if (PL_op->op_flags & OPf_REF)
3276 else if (isGV(TOPs))
3278 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3279 gv = (GV*)SvRV(POPs);
3285 if (gv == PL_defgv) {
3287 io = GvIO(PL_statgv);
3290 goto really_filename;
3295 PL_laststatval = -1;
3296 sv_setpv(PL_statname, "");
3297 io = GvIO(PL_statgv);
3299 if (io && IoIFP(io)) {
3300 if (! PerlIO_has_base(IoIFP(io)))
3301 DIE(aTHX_ "-T and -B not implemented on filehandles");
3302 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3303 if (PL_laststatval < 0)
3305 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3306 if (PL_op->op_type == OP_FTTEXT)
3311 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3312 i = PerlIO_getc(IoIFP(io));
3314 (void)PerlIO_ungetc(IoIFP(io),i);
3316 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3318 len = PerlIO_get_bufsiz(IoIFP(io));
3319 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3320 /* sfio can have large buffers - limit to 512 */
3325 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3327 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3329 SETERRNO(EBADF,RMS$_IFI);
3337 PL_laststatval = -1;
3338 PL_laststype = OP_STAT;
3339 sv_setpv(PL_statname, SvPV(sv, n_a));
3340 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3341 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3342 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3345 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3346 if (PL_laststatval < 0) {
3347 (void)PerlIO_close(fp);
3350 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3351 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3352 (void)PerlIO_close(fp);
3354 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3355 RETPUSHNO; /* special case NFS directories */
3356 RETPUSHYES; /* null file is anything */
3361 /* now scan s to look for textiness */
3362 /* XXX ASCII dependent code */
3364 #if defined(DOSISH) || defined(USEMYBINMODE)
3365 /* ignore trailing ^Z on short files */
3366 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3370 for (i = 0; i < len; i++, s++) {
3371 if (!*s) { /* null never allowed in text */
3376 else if (!(isPRINT(*s) || isSPACE(*s)))
3379 else if (*s & 128) {
3381 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3384 /* utf8 characters don't count as odd */
3385 if (UTF8_IS_START(*s)) {
3386 int ulen = UTF8SKIP(s);
3387 if (ulen < len - i) {
3389 for (j = 1; j < ulen; j++) {
3390 if (!UTF8_IS_CONTINUATION(s[j]))
3393 --ulen; /* loop does extra increment */
3403 *s != '\n' && *s != '\r' && *s != '\b' &&
3404 *s != '\t' && *s != '\f' && *s != 27)
3409 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3434 if( !tmps || !*tmps ) {
3435 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3436 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3438 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3443 deprecate("chdir('') or chdir(undef) as chdir()");
3444 tmps = SvPV(*svp, n_a);
3448 TAINT_PROPER("chdir");
3453 TAINT_PROPER("chdir");
3454 PUSHi( PerlDir_chdir(tmps) >= 0 );
3456 /* Clear the DEFAULT element of ENV so we'll get the new value
3458 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3466 dSP; dMARK; dTARGET;
3467 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3473 DIE(aTHX_ PL_no_func, "chown");
3483 TAINT_PROPER("chroot");
3484 PUSHi( chroot(tmps) >= 0 );
3487 DIE(aTHX_ PL_no_func, "chroot");
3493 dSP; dMARK; dTARGET;
3495 value = (I32)apply(PL_op->op_type, MARK, SP);
3503 dSP; dMARK; dTARGET;
3505 value = (I32)apply(PL_op->op_type, MARK, SP);
3513 dSP; dMARK; dTARGET;
3515 value = (I32)apply(PL_op->op_type, MARK, SP);
3527 char *tmps2 = POPpx;
3528 char *tmps = SvPV(TOPs, n_a);
3529 TAINT_PROPER("rename");
3531 anum = PerlLIO_rename(tmps, tmps2);
3533 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3534 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3537 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3538 (void)UNLINK(tmps2);
3539 if (!(anum = link(tmps, tmps2)))
3540 anum = UNLINK(tmps);
3553 char *tmps2 = POPpx;
3554 char *tmps = SvPV(TOPs, n_a);
3555 TAINT_PROPER("link");
3556 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3559 DIE(aTHX_ PL_no_func, "link");
3568 char *tmps2 = POPpx;
3569 char *tmps = SvPV(TOPs, n_a);
3570 TAINT_PROPER("symlink");
3571 SETi( symlink(tmps, tmps2) >= 0 );
3574 DIE(aTHX_ PL_no_func, "symlink");
3584 char buf[MAXPATHLEN];
3588 #ifndef INCOMPLETE_TAINTS
3592 len = readlink(tmps, buf, sizeof(buf) - 1);
3600 RETSETUNDEF; /* just pretend it's a normal file */
3604 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3606 S_dooneliner(pTHX_ char *cmd, char *filename)
3608 char *save_filename = filename;
3614 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3615 strcpy(cmdline, cmd);
3616 strcat(cmdline, " ");
3617 for (s = cmdline + strlen(cmdline); *filename; ) {
3622 myfp = PerlProc_popen(cmdline, "r");
3626 SV *tmpsv = sv_newmortal();
3627 /* Need to save/restore 'PL_rs' ?? */
3628 s = sv_gets(tmpsv, myfp, 0);
3629 (void)PerlProc_pclose(myfp);
3633 #ifdef HAS_SYS_ERRLIST
3638 /* you don't see this */
3640 #ifdef HAS_SYS_ERRLIST
3648 if (instr(s, errmsg)) {
3655 #define EACCES EPERM
3657 if (instr(s, "cannot make"))
3658 SETERRNO(EEXIST,RMS$_FEX);
3659 else if (instr(s, "existing file"))
3660 SETERRNO(EEXIST,RMS$_FEX);
3661 else if (instr(s, "ile exists"))
3662 SETERRNO(EEXIST,RMS$_FEX);
3663 else if (instr(s, "non-exist"))
3664 SETERRNO(ENOENT,RMS$_FNF);
3665 else if (instr(s, "does not exist"))
3666 SETERRNO(ENOENT,RMS$_FNF);
3667 else if (instr(s, "not empty"))
3668 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3669 else if (instr(s, "cannot access"))
3670 SETERRNO(EACCES,RMS$_PRV);
3672 SETERRNO(EPERM,RMS$_PRV);
3675 else { /* some mkdirs return no failure indication */
3676 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3677 if (PL_op->op_type == OP_RMDIR)
3682 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3707 tmps = SvPV(TOPs, len);
3708 /* Different operating and file systems take differently to
3709 * trailing slashes. According to POSIX 1003.1 1996 Edition
3710 * any number of trailing slashes should be allowed.
3711 * Thusly we snip them away so that even non-conforming
3712 * systems are happy. */
3713 /* We should probably do this "filtering" for all
3714 * the functions that expect (potentially) directory names:
3715 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3716 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3717 if (len > 1 && tmps[len-1] == '/') {
3718 while (tmps[len] == '/' && len > 1)
3720 tmps = savepvn(tmps, len);
3724 TAINT_PROPER("mkdir");
3726 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3728 SETi( dooneliner("mkdir", tmps) );
3729 oldumask = PerlLIO_umask(0);
3730 PerlLIO_umask(oldumask);
3731 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3745 TAINT_PROPER("rmdir");
3747 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3749 XPUSHi( dooneliner("rmdir", tmps) );
3754 /* Directory calls. */
3758 #if defined(Direntry_t) && defined(HAS_READDIR)
3761 char *dirname = POPpx;
3763 register IO *io = GvIOn(gv);
3769 PerlDir_close(IoDIRP(io));
3770 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3776 SETERRNO(EBADF,RMS$_DIR);
3779 DIE(aTHX_ PL_no_dir_func, "opendir");
3785 #if defined(Direntry_t) && defined(HAS_READDIR)
3787 #if !defined(I_DIRENT) && !defined(VMS)
3788 Direntry_t *readdir (DIR *);
3790 register Direntry_t *dp;
3792 register IO *io = GvIOn(gv);
3795 if (!io || !IoDIRP(io))
3798 if (GIMME == G_ARRAY) {
3800 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3802 sv = newSVpvn(dp->d_name, dp->d_namlen);
3804 sv = newSVpv(dp->d_name, 0);
3806 #ifndef INCOMPLETE_TAINTS
3807 if (!(IoFLAGS(io) & IOf_UNTAINT))
3810 XPUSHs(sv_2mortal(sv));
3814 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3817 sv = newSVpvn(dp->d_name, dp->d_namlen);
3819 sv = newSVpv(dp->d_name, 0);
3821 #ifndef INCOMPLETE_TAINTS
3822 if (!(IoFLAGS(io) & IOf_UNTAINT))
3825 XPUSHs(sv_2mortal(sv));
3831 SETERRNO(EBADF,RMS$_ISI);
3832 if (GIMME == G_ARRAY)
3837 DIE(aTHX_ PL_no_dir_func, "readdir");
3843 #if defined(HAS_TELLDIR) || defined(telldir)
3845 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3846 /* XXX netbsd still seemed to.
3847 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3848 --JHI 1999-Feb-02 */
3849 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3850 long telldir (DIR *);
3853 register IO *io = GvIOn(gv);
3855 if (!io || !IoDIRP(io))
3858 PUSHi( PerlDir_tell(IoDIRP(io)) );
3862 SETERRNO(EBADF,RMS$_ISI);
3865 DIE(aTHX_ PL_no_dir_func, "telldir");
3871 #if defined(HAS_SEEKDIR) || defined(seekdir)
3875 register IO *io = GvIOn(gv);
3877 if (!io || !IoDIRP(io))
3880 (void)PerlDir_seek(IoDIRP(io), along);
3885 SETERRNO(EBADF,RMS$_ISI);
3888 DIE(aTHX_ PL_no_dir_func, "seekdir");
3894 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3897 register IO *io = GvIOn(gv);
3899 if (!io || !IoDIRP(io))
3902 (void)PerlDir_rewind(IoDIRP(io));
3906 SETERRNO(EBADF,RMS$_ISI);
3909 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3915 #if defined(Direntry_t) && defined(HAS_READDIR)
3918 register IO *io = GvIOn(gv);
3920 if (!io || !IoDIRP(io))
3923 #ifdef VOID_CLOSEDIR
3924 PerlDir_close(IoDIRP(io));
3926 if (PerlDir_close(IoDIRP(io)) < 0) {
3927 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3936 SETERRNO(EBADF,RMS$_IFI);
3939 DIE(aTHX_ PL_no_dir_func, "closedir");
3943 /* Process control. */
3953 PERL_FLUSHALL_FOR_CHILD;
3954 childpid = PerlProc_fork();
3959 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3960 SvREADONLY_off(GvSV(tmpgv));
3961 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3962 SvREADONLY_on(GvSV(tmpgv));
3964 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3969 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3974 PERL_FLUSHALL_FOR_CHILD;
3975 childpid = PerlProc_fork();
3981 DIE(aTHX_ PL_no_func, "fork");
3988 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3993 #ifdef PERL_OLD_SIGNALS
3994 childpid = wait4pid(-1, &argflags, 0);
3996 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
4000 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4001 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4002 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4004 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4009 DIE(aTHX_ PL_no_func, "wait");
4015 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4023 #ifdef PERL_OLD_SIGNALS
4024 childpid = wait4pid(childpid, &argflags, optype);
4026 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
4030 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4031 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4032 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4034 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4039 DIE(aTHX_ PL_no_func, "waitpid");
4045 dSP; dMARK; dORIGMARK; dTARGET;
4053 while (++MARK <= SP) {
4054 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4059 /* XXX Remove warning at end of deprecation cycle --RD 2002-02 */
4060 if (SP - MARK == 1) {
4061 TAINT_PROPER("system");
4063 else if (ckWARN2(WARN_TAINT, WARN_DEPRECATED)) {
4064 Perl_warner(aTHX_ packWARN2(WARN_TAINT, WARN_DEPRECATED),
4065 "Use of tainted arguments in %s is deprecated", "system");
4068 PERL_FLUSHALL_FOR_CHILD;
4069 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4074 if (PerlProc_pipe(pp) >= 0)
4076 while ((childpid = PerlProc_fork()) == -1) {
4077 if (errno != EAGAIN) {
4082 PerlLIO_close(pp[0]);
4083 PerlLIO_close(pp[1]);
4090 Sigsave_t ihand,qhand; /* place to save signals during system() */
4094 PerlLIO_close(pp[1]);
4096 rsignal_save(SIGINT, SIG_IGN, &ihand);
4097 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4100 result = wait4pid(childpid, &status, 0);
4101 } while (result == -1 && errno == EINTR);
4103 (void)rsignal_restore(SIGINT, &ihand);
4104 (void)rsignal_restore(SIGQUIT, &qhand);
4106 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4107 do_execfree(); /* free any memory child malloced on fork */
4113 while (n < sizeof(int)) {
4114 n1 = PerlLIO_read(pp[0],
4115 (void*)(((char*)&errkid)+n),
4121 PerlLIO_close(pp[0]);
4122 if (n) { /* Error */
4123 if (n != sizeof(int))
4124 DIE(aTHX_ "panic: kid popen errno read");
4125 errno = errkid; /* Propagate errno from kid */
4126 STATUS_CURRENT = -1;
4129 PUSHi(STATUS_CURRENT);
4133 PerlLIO_close(pp[0]);
4134 #if defined(HAS_FCNTL) && defined(F_SETFD)
4135 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4138 if (PL_op->op_flags & OPf_STACKED) {
4139 SV *really = *++MARK;
4140 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4142 else if (SP - MARK != 1)
4143 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4145 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4149 #else /* ! FORK or VMS or OS/2 */
4152 if (PL_op->op_flags & OPf_STACKED) {
4153 SV *really = *++MARK;
4154 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4156 else if (SP - MARK != 1)
4157 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4159 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4161 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4163 STATUS_NATIVE_SET(value);
4166 PUSHi(result ? value : STATUS_CURRENT);
4167 #endif /* !FORK or VMS */
4173 dSP; dMARK; dORIGMARK; dTARGET;
4179 while (++MARK <= SP) {
4180 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4185 /* XXX Remove warning at end of deprecation cycle --RD 2002-02 */
4186 if (SP - MARK == 1) {
4187 TAINT_PROPER("exec");
4189 else if (ckWARN2(WARN_TAINT, WARN_DEPRECATED)) {
4190 Perl_warner(aTHX_ packWARN2(WARN_TAINT, WARN_DEPRECATED),
4191 "Use of tainted arguments in %s is deprecated", "exec");
4194 PERL_FLUSHALL_FOR_CHILD;
4195 if (PL_op->op_flags & OPf_STACKED) {
4196 SV *really = *++MARK;
4197 value = (I32)do_aexec(really, MARK, SP);
4199 else if (SP - MARK != 1)
4201 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4205 (void ) do_aspawn(Nullsv, MARK, SP);
4209 value = (I32)do_aexec(Nullsv, MARK, SP);
4214 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4217 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4220 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4233 dSP; dMARK; dTARGET;
4235 value = (I32)apply(PL_op->op_type, MARK, SP);
4240 DIE(aTHX_ PL_no_func, "kill");
4248 XPUSHi( getppid() );
4251 DIE(aTHX_ PL_no_func, "getppid");
4267 pgrp = (I32)BSD_GETPGRP(pid);
4269 if (pid != 0 && pid != PerlProc_getpid())
4270 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4276 DIE(aTHX_ PL_no_func, "getpgrp()");
4295 TAINT_PROPER("setpgrp");
4297 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4299 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4300 || (pid != 0 && pid != PerlProc_getpid()))
4302 DIE(aTHX_ "setpgrp can't take arguments");
4304 SETi( setpgrp() >= 0 );
4305 #endif /* USE_BSDPGRP */
4308 DIE(aTHX_ PL_no_func, "setpgrp()");
4314 #ifdef HAS_GETPRIORITY
4318 SETi( getpriority(which, who) );
4321 DIE(aTHX_ PL_no_func, "getpriority()");
4327 #ifdef HAS_SETPRIORITY
4332 TAINT_PROPER("setpriority");
4333 SETi( setpriority(which, who, niceval) >= 0 );
4336 DIE(aTHX_ PL_no_func, "setpriority()");
4346 XPUSHn( time(Null(Time_t*)) );
4348 XPUSHi( time(Null(Time_t*)) );
4353 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4354 to HZ. Probably. For now, assume that if the system
4355 defines HZ, it does so correctly. (Will this break
4357 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4358 it's supported. --AD 9/96.
4379 (void)PerlProc_times(&PL_timesbuf);
4381 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4382 /* struct tms, though same data */
4386 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4387 if (GIMME == G_ARRAY) {
4388 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4389 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4390 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4394 DIE(aTHX_ "times not implemented");
4395 #endif /* HAS_TIMES */
4408 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4409 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4410 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4416 when = (Time_t)SvNVx(POPs);
4418 when = (Time_t)SvIVx(POPs);
4421 if (PL_op->op_type == OP_LOCALTIME)
4422 tmbuf = localtime(&when);
4424 tmbuf = gmtime(&when);
4426 if (GIMME != G_ARRAY) {
4432 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4433 dayname[tmbuf->tm_wday],
4434 monname[tmbuf->tm_mon],
4439 tmbuf->tm_year + 1900);
4440 PUSHs(sv_2mortal(tsv));
4445 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4446 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4447 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4448 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4449 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4450 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4451 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4452 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4453 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4464 anum = alarm((unsigned int)anum);
4471 DIE(aTHX_ PL_no_func, "alarm");
4482 (void)time(&lasttime);
4487 PerlProc_sleep((unsigned int)duration);
4490 XPUSHi(when - lasttime);
4494 /* Shared memory. */
4508 return pp_shmwrite();
4513 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4514 dSP; dMARK; dTARGET;
4515 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4524 /* Message passing. */
4538 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4539 dSP; dMARK; dTARGET;
4540 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4551 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4552 dSP; dMARK; dTARGET;
4553 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4566 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4567 dSP; dMARK; dTARGET;
4568 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4575 DIE(aTHX_ "System V IPC is not implemented on this machine");
4581 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4582 dSP; dMARK; dTARGET;
4583 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4591 PUSHp(zero_but_true, ZBTLEN);
4601 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4602 dSP; dMARK; dTARGET;
4603 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4612 /* Get system info. */
4616 #ifdef HAS_GETHOSTBYNAME
4617 return pp_ghostent();
4619 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4625 #ifdef HAS_GETHOSTBYADDR
4626 return pp_ghostent();
4628 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4634 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4636 I32 which = PL_op->op_type;
4637 register char **elem;
4639 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4640 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4641 struct hostent *gethostbyname(Netdb_name_t);
4642 struct hostent *gethostent(void);
4644 struct hostent *hent;
4649 if (which == OP_GHBYNAME) {
4650 #ifdef HAS_GETHOSTBYNAME
4651 char* name = POPpbytex;
4652 hent = PerlSock_gethostbyname(name);
4654 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4657 else if (which == OP_GHBYADDR) {
4658 #ifdef HAS_GETHOSTBYADDR
4659 int addrtype = POPi;
4662 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4664 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4666 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4670 #ifdef HAS_GETHOSTENT
4671 hent = PerlSock_gethostent();
4673 DIE(aTHX_ PL_no_sock_func, "gethostent");
4676 #ifdef HOST_NOT_FOUND
4678 #ifdef USE_REENTRANT_API
4679 # ifdef USE_GETHOSTENT_ERRNO
4680 h_errno = PL_reentrant_buffer->_gethostent_errno;
4683 STATUS_NATIVE_SET(h_errno);
4687 if (GIMME != G_ARRAY) {
4688 PUSHs(sv = sv_newmortal());
4690 if (which == OP_GHBYNAME) {
4692 sv_setpvn(sv, hent->h_addr, hent->h_length);
4695 sv_setpv(sv, (char*)hent->h_name);
4701 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4702 sv_setpv(sv, (char*)hent->h_name);
4703 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4704 for (elem = hent->h_aliases; elem && *elem; elem++) {
4705 sv_catpv(sv, *elem);
4707 sv_catpvn(sv, " ", 1);
4709 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4710 sv_setiv(sv, (IV)hent->h_addrtype);
4711 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4712 len = hent->h_length;
4713 sv_setiv(sv, (IV)len);
4715 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4716 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4717 sv_setpvn(sv, *elem, len);
4720 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4722 sv_setpvn(sv, hent->h_addr, len);
4727 DIE(aTHX_ PL_no_sock_func, "gethostent");
4733 #ifdef HAS_GETNETBYNAME
4734 return pp_gnetent();
4736 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4742 #ifdef HAS_GETNETBYADDR
4743 return pp_gnetent();
4745 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4751 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4753 I32 which = PL_op->op_type;
4754 register char **elem;
4756 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4757 struct netent *getnetbyaddr(Netdb_net_t, int);
4758 struct netent *getnetbyname(Netdb_name_t);
4759 struct netent *getnetent(void);
4761 struct netent *nent;
4764 if (which == OP_GNBYNAME){
4765 #ifdef HAS_GETNETBYNAME
4766 char *name = POPpbytex;
4767 nent = PerlSock_getnetbyname(name);
4769 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4772 else if (which == OP_GNBYADDR) {
4773 #ifdef HAS_GETNETBYADDR
4774 int addrtype = POPi;
4775 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4776 nent = PerlSock_getnetbyaddr(addr, addrtype);
4778 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4782 #ifdef HAS_GETNETENT
4783 nent = PerlSock_getnetent();
4785 DIE(aTHX_ PL_no_sock_func, "getnetent");
4788 #ifdef HOST_NOT_FOUND
4790 #ifdef USE_REENTRANT_API
4791 # ifdef USE_GETNETENT_ERRNO
4792 h_errno = PL_reentrant_buffer->_getnetent_errno;
4795 STATUS_NATIVE_SET(h_errno);
4800 if (GIMME != G_ARRAY) {
4801 PUSHs(sv = sv_newmortal());
4803 if (which == OP_GNBYNAME)
4804 sv_setiv(sv, (IV)nent->n_net);
4806 sv_setpv(sv, nent->n_name);
4812 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4813 sv_setpv(sv, nent->n_name);
4814 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4815 for (elem = nent->n_aliases; elem && *elem; elem++) {
4816 sv_catpv(sv, *elem);
4818 sv_catpvn(sv, " ", 1);
4820 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4821 sv_setiv(sv, (IV)nent->n_addrtype);
4822 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4823 sv_setiv(sv, (IV)nent->n_net);
4828 DIE(aTHX_ PL_no_sock_func, "getnetent");
4834 #ifdef HAS_GETPROTOBYNAME
4835 return pp_gprotoent();
4837 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4843 #ifdef HAS_GETPROTOBYNUMBER
4844 return pp_gprotoent();
4846 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4852 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4854 I32 which = PL_op->op_type;
4855 register char **elem;
4857 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4858 struct protoent *getprotobyname(Netdb_name_t);
4859 struct protoent *getprotobynumber(int);
4860 struct protoent *getprotoent(void);
4862 struct protoent *pent;
4865 if (which == OP_GPBYNAME) {
4866 #ifdef HAS_GETPROTOBYNAME
4867 char* name = POPpbytex;
4868 pent = PerlSock_getprotobyname(name);
4870 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4873 else if (which == OP_GPBYNUMBER) {
4874 #ifdef HAS_GETPROTOBYNUMBER
4876 pent = PerlSock_getprotobynumber(number);
4878 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4882 #ifdef HAS_GETPROTOENT
4883 pent = PerlSock_getprotoent();
4885 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4889 if (GIMME != G_ARRAY) {
4890 PUSHs(sv = sv_newmortal());
4892 if (which == OP_GPBYNAME)
4893 sv_setiv(sv, (IV)pent->p_proto);
4895 sv_setpv(sv, pent->p_name);
4901 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4902 sv_setpv(sv, pent->p_name);
4903 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4904 for (elem = pent->p_aliases; elem && *elem; elem++) {
4905 sv_catpv(sv, *elem);
4907 sv_catpvn(sv, " ", 1);
4909 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4910 sv_setiv(sv, (IV)pent->p_proto);
4915 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4921 #ifdef HAS_GETSERVBYNAME
4922 return pp_gservent();
4924 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4930 #ifdef HAS_GETSERVBYPORT
4931 return pp_gservent();
4933 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4939 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4941 I32 which = PL_op->op_type;
4942 register char **elem;
4944 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4945 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4946 struct servent *getservbyport(int, Netdb_name_t);
4947 struct servent *getservent(void);
4949 struct servent *sent;
4952 if (which == OP_GSBYNAME) {
4953 #ifdef HAS_GETSERVBYNAME
4954 char *proto = POPpbytex;
4955 char *name = POPpbytex;
4957 if (proto && !*proto)
4960 sent = PerlSock_getservbyname(name, proto);
4962 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4965 else if (which == OP_GSBYPORT) {
4966 #ifdef HAS_GETSERVBYPORT
4967 char *proto = POPpbytex;
4968 unsigned short port = (unsigned short)POPu;
4971 port = PerlSock_htons(port);
4973 sent = PerlSock_getservbyport(port, proto);
4975 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4979 #ifdef HAS_GETSERVENT
4980 sent = PerlSock_getservent();
4982 DIE(aTHX_ PL_no_sock_func, "getservent");
4986 if (GIMME != G_ARRAY) {
4987 PUSHs(sv = sv_newmortal());
4989 if (which == OP_GSBYNAME) {
4991 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4993 sv_setiv(sv, (IV)(sent->s_port));
4997 sv_setpv(sv, sent->s_name);
5003 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5004 sv_setpv(sv, sent->s_name);
5005 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5006 for (elem = sent->s_aliases; elem && *elem; elem++) {
5007 sv_catpv(sv, *elem);
5009 sv_catpvn(sv, " ", 1);
5011 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5013 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5015 sv_setiv(sv, (IV)(sent->s_port));
5017 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5018 sv_setpv(sv, sent->s_proto);
5023 DIE(aTHX_ PL_no_sock_func, "getservent");
5029 #ifdef HAS_SETHOSTENT
5031 PerlSock_sethostent(TOPi);
5034 DIE(aTHX_ PL_no_sock_func, "sethostent");
5040 #ifdef HAS_SETNETENT
5042 PerlSock_setnetent(TOPi);
5045 DIE(aTHX_ PL_no_sock_func, "setnetent");
5051 #ifdef HAS_SETPROTOENT
5053 PerlSock_setprotoent(TOPi);
5056 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5062 #ifdef HAS_SETSERVENT
5064 PerlSock_setservent(TOPi);
5067 DIE(aTHX_ PL_no_sock_func, "setservent");
5073 #ifdef HAS_ENDHOSTENT
5075 PerlSock_endhostent();
5079 DIE(aTHX_ PL_no_sock_func, "endhostent");
5085 #ifdef HAS_ENDNETENT
5087 PerlSock_endnetent();
5091 DIE(aTHX_ PL_no_sock_func, "endnetent");
5097 #ifdef HAS_ENDPROTOENT
5099 PerlSock_endprotoent();
5103 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5109 #ifdef HAS_ENDSERVENT
5111 PerlSock_endservent();
5115 DIE(aTHX_ PL_no_sock_func, "endservent");
5124 DIE(aTHX_ PL_no_func, "getpwnam");
5133 DIE(aTHX_ PL_no_func, "getpwuid");
5141 I32 which = PL_op->op_type;
5144 struct passwd *pwent = NULL;
5146 * We currently support only the SysV getsp* shadow password interface.
5147 * The interface is declared in <shadow.h> and often one needs to link
5148 * with -lsecurity or some such.
5149 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5152 * AIX getpwnam() is clever enough to return the encrypted password
5153 * only if the caller (euid?) is root.
5155 * There are at least two other shadow password APIs. Many platforms
5156 * seem to contain more than one interface for accessing the shadow
5157 * password databases, possibly for compatibility reasons.
5158 * The getsp*() is by far he simplest one, the other two interfaces
5159 * are much more complicated, but also very similar to each other.
5164 * struct pr_passwd *getprpw*();
5165 * The password is in
5166 * char getprpw*(...).ufld.fd_encrypt[]
5167 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5172 * struct es_passwd *getespw*();
5173 * The password is in
5174 * char *(getespw*(...).ufld.fd_encrypt)
5175 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5177 * Mention I_PROT here so that Configure probes for it.
5179 * In HP-UX for getprpw*() the manual page claims that one should include
5180 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5181 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5182 * and pp_sys.c already includes <shadow.h> if there is such.
5184 * Note that <sys/security.h> is already probed for, but currently
5185 * it is only included in special cases.
5187 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5188 * be preferred interface, even though also the getprpw*() interface
5189 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5190 * One also needs to call set_auth_parameters() in main() before
5191 * doing anything else, whether one is using getespw*() or getprpw*().
5193 * Note that accessing the shadow databases can be magnitudes
5194 * slower than accessing the standard databases.
5202 char* name = POPpbytex;
5203 pwent = getpwnam(name);
5209 pwent = getpwuid(uid);
5213 # ifdef HAS_GETPWENT
5215 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5216 if (pwent) pwent = getpwnam(pwent->pw_name);
5219 DIE(aTHX_ PL_no_func, "getpwent");
5225 if (GIMME != G_ARRAY) {
5226 PUSHs(sv = sv_newmortal());
5228 if (which == OP_GPWNAM)
5229 # if Uid_t_sign <= 0
5230 sv_setiv(sv, (IV)pwent->pw_uid);
5232 sv_setuv(sv, (UV)pwent->pw_uid);
5235 sv_setpv(sv, pwent->pw_name);
5241 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5242 sv_setpv(sv, pwent->pw_name);
5244 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5246 /* If we have getspnam(), we try to dig up the shadow
5247 * password. If we are underprivileged, the shadow
5248 * interface will set the errno to EACCES or similar,
5249 * and return a null pointer. If this happens, we will
5250 * use the dummy password (usually "*" or "x") from the
5251 * standard password database.
5253 * In theory we could skip the shadow call completely
5254 * if euid != 0 but in practice we cannot know which
5255 * security measures are guarding the shadow databases
5256 * on a random platform.
5258 * Resist the urge to use additional shadow interfaces.
5259 * Divert the urge to writing an extension instead.
5262 # ifdef HAS_GETSPNAM
5264 struct spwd *spwent;
5265 int saverrno; /* Save and restore errno so that
5266 * underprivileged attempts seem
5267 * to have never made the unsccessful
5268 * attempt to retrieve the shadow password. */
5271 spwent = getspnam(pwent->pw_name);
5273 if (spwent && spwent->sp_pwdp)
5274 sv_setpv(sv, spwent->sp_pwdp);
5278 if (!SvPOK(sv)) /* Use the standard password, then. */
5279 sv_setpv(sv, pwent->pw_passwd);
5282 # ifndef INCOMPLETE_TAINTS
5283 /* passwd is tainted because user himself can diddle with it.
5284 * admittedly not much and in a very limited way, but nevertheless. */
5288 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5289 # if Uid_t_sign <= 0
5290 sv_setiv(sv, (IV)pwent->pw_uid);
5292 sv_setuv(sv, (UV)pwent->pw_uid);
5295 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5296 # if Uid_t_sign <= 0
5297 sv_setiv(sv, (IV)pwent->pw_gid);
5299 sv_setuv(sv, (UV)pwent->pw_gid);
5301 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5302 * because of the poor interface of the Perl getpw*(),
5303 * not because there's some standard/convention saying so.
5304 * A better interface would have been to return a hash,
5305 * but we are accursed by our history, alas. --jhi. */
5306 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5308 sv_setiv(sv, (IV)pwent->pw_change);
5311 sv_setiv(sv, (IV)pwent->pw_quota);
5314 sv_setpv(sv, pwent->pw_age);
5319 /* pw_class and pw_comment are mutually exclusive--.
5320 * see the above note for pw_change, pw_quota, and pw_age. */
5321 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5323 sv_setpv(sv, pwent->pw_class);
5326 sv_setpv(sv, pwent->pw_comment);
5330 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5332 sv_setpv(sv, pwent->pw_gecos);
5334 # ifndef INCOMPLETE_TAINTS
5335 /* pw_gecos is tainted because user himself can diddle with it. */
5339 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5340 sv_setpv(sv, pwent->pw_dir);
5342 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5343 sv_setpv(sv, pwent->pw_shell);
5344 # ifndef INCOMPLETE_TAINTS
5345 /* pw_shell is tainted because user himself can diddle with it. */
5350 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5351 sv_setiv(sv, (IV)pwent->pw_expire);
5356 DIE(aTHX_ PL_no_func, "getpwent");
5362 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5367 DIE(aTHX_ PL_no_func, "setpwent");
5373 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5378 DIE(aTHX_ PL_no_func, "endpwent");
5387 DIE(aTHX_ PL_no_func, "getgrnam");
5396 DIE(aTHX_ PL_no_func, "getgrgid");
5404 I32 which = PL_op->op_type;
5405 register char **elem;
5407 struct group *grent;
5410 if (which == OP_GGRNAM) {
5411 char* name = POPpbytex;
5412 grent = (struct group *)getgrnam(name);
5414 else if (which == OP_GGRGID) {
5416 grent = (struct group *)getgrgid(gid);
5420 grent = (struct group *)getgrent();
5422 DIE(aTHX_ PL_no_func, "getgrent");
5426 if (GIMME != G_ARRAY) {
5427 PUSHs(sv = sv_newmortal());
5429 if (which == OP_GGRNAM)
5430 sv_setiv(sv, (IV)grent->gr_gid);
5432 sv_setpv(sv, grent->gr_name);
5438 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5439 sv_setpv(sv, grent->gr_name);
5441 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5443 sv_setpv(sv, grent->gr_passwd);
5446 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5447 sv_setiv(sv, (IV)grent->gr_gid);
5449 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5450 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5451 /* In UNICOS/mk (_CRAYMPP) the multithreading
5452 * versions (getgrnam_r, getgrgid_r)
5453 * seem to return an illegal pointer
5454 * as the group members list, gr_mem.
5455 * getgrent() doesn't even have a _r version
5456 * but the gr_mem is poisonous anyway.
5457 * So yes, you cannot get the list of group
5458 * members if building multithreaded in UNICOS/mk. */
5459 for (elem = grent->gr_mem; elem && *elem; elem++) {
5460 sv_catpv(sv, *elem);
5462 sv_catpvn(sv, " ", 1);
5469 DIE(aTHX_ PL_no_func, "getgrent");
5475 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5480 DIE(aTHX_ PL_no_func, "setgrent");
5486 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5491 DIE(aTHX_ PL_no_func, "endgrent");
5501 if (!(tmps = PerlProc_getlogin()))
5503 PUSHp(tmps, strlen(tmps));
5506 DIE(aTHX_ PL_no_func, "getlogin");
5510 /* Miscellaneous. */
5515 dSP; dMARK; dORIGMARK; dTARGET;
5516 register I32 items = SP - MARK;
5517 unsigned long a[20];
5523 while (++MARK <= SP) {
5524 if (SvTAINTED(*MARK)) {
5530 TAINT_PROPER("syscall");
5533 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5534 * or where sizeof(long) != sizeof(char*). But such machines will
5535 * not likely have syscall implemented either, so who cares?
5537 while (++MARK <= SP) {
5538 if (SvNIOK(*MARK) || !i)
5539 a[i++] = SvIV(*MARK);
5540 else if (*MARK == &PL_sv_undef)
5543 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5549 DIE(aTHX_ "Too many args to syscall");
5551 DIE(aTHX_ "Too few args to syscall");
5553 retval = syscall(a[0]);
5556 retval = syscall(a[0],a[1]);
5559 retval = syscall(a[0],a[1],a[2]);
5562 retval = syscall(a[0],a[1],a[2],a[3]);
5565 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5568 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5571 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5574 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5578 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5581 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5584 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5588 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5592 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5596 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5597 a[10],a[11],a[12],a[13]);
5599 #endif /* atarist */
5605 DIE(aTHX_ PL_no_func, "syscall");
5609 #ifdef FCNTL_EMULATE_FLOCK
5611 /* XXX Emulate flock() with fcntl().
5612 What's really needed is a good file locking module.
5616 fcntl_emulate_flock(int fd, int operation)
5620 switch (operation & ~LOCK_NB) {
5622 flock.l_type = F_RDLCK;
5625 flock.l_type = F_WRLCK;
5628 flock.l_type = F_UNLCK;
5634 flock.l_whence = SEEK_SET;
5635 flock.l_start = flock.l_len = (Off_t)0;
5637 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5640 #endif /* FCNTL_EMULATE_FLOCK */
5642 #ifdef LOCKF_EMULATE_FLOCK
5644 /* XXX Emulate flock() with lockf(). This is just to increase
5645 portability of scripts. The calls are not completely
5646 interchangeable. What's really needed is a good file
5650 /* The lockf() constants might have been defined in <unistd.h>.
5651 Unfortunately, <unistd.h> causes troubles on some mixed
5652 (BSD/POSIX) systems, such as SunOS 4.1.3.
5654 Further, the lockf() constants aren't POSIX, so they might not be
5655 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5656 just stick in the SVID values and be done with it. Sigh.
5660 # define F_ULOCK 0 /* Unlock a previously locked region */
5663 # define F_LOCK 1 /* Lock a region for exclusive use */
5666 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5669 # define F_TEST 3 /* Test a region for other processes locks */
5673 lockf_emulate_flock(int fd, int operation)
5679 /* flock locks entire file so for lockf we need to do the same */
5681 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5682 if (pos > 0) /* is seekable and needs to be repositioned */
5683 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5684 pos = -1; /* seek failed, so don't seek back afterwards */
5687 switch (operation) {
5689 /* LOCK_SH - get a shared lock */
5691 /* LOCK_EX - get an exclusive lock */
5693 i = lockf (fd, F_LOCK, 0);
5696 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5697 case LOCK_SH|LOCK_NB:
5698 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5699 case LOCK_EX|LOCK_NB:
5700 i = lockf (fd, F_TLOCK, 0);
5702 if ((errno == EAGAIN) || (errno == EACCES))
5703 errno = EWOULDBLOCK;
5706 /* LOCK_UN - unlock (non-blocking is a no-op) */
5708 case LOCK_UN|LOCK_NB:
5709 i = lockf (fd, F_ULOCK, 0);
5712 /* Default - can't decipher operation */
5719 if (pos > 0) /* need to restore position of the handle */
5720 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5725 #endif /* LOCKF_EMULATE_FLOCK */