3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
18 /* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
28 #define PERL_IN_PP_SYS_C
32 /* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
34 * The API is from SysV.
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
41 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
49 # include <sys/wait.h>
53 # include <sys/resource.h>
62 # include <sys/select.h>
66 /* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
73 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
88 struct passwd *getpwent (void);
89 #elif defined (VMS) && defined (my_getpwent)
90 struct passwd *Perl_my_getpwent (void);
99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
104 struct group *getgrent (void);
110 # if defined(_MSC_VER) || defined(__MINGW32__)
111 # include <sys/utime.h>
118 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
123 # define my_chsize PerlLIO_chsize
125 I32 my_chsize(int fd, Off_t length);
131 #else /* no flock() */
133 /* fcntl.h might not have been included, even if it exists, because
134 the current Configure only sets I_FCNTL if it's needed to pick up
135 the *_OK constants. Make sure it has been included before testing
136 the fcntl() locking constants. */
137 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
141 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
142 # define FLOCK fcntl_emulate_flock
143 # define FCNTL_EMULATE_FLOCK
144 # else /* no flock() or fcntl(F_SETLK,...) */
146 # define FLOCK lockf_emulate_flock
147 # define LOCKF_EMULATE_FLOCK
149 # endif /* no flock() or fcntl(F_SETLK,...) */
152 static int FLOCK (int, int);
155 * These are the flock() constants. Since this sytems doesn't have
156 * flock(), the values of the constants are probably not available.
170 # endif /* emulating flock() */
172 #endif /* no flock() */
175 static const char zero_but_true[ZBTLEN + 1] = "0 but true";
177 #if defined(I_SYS_ACCESS) && !defined(R_OK)
178 # include <sys/access.h>
181 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
182 # define FD_CLOEXEC 1 /* NeXT needs this */
188 /* Missing protos on LynxOS */
189 void sethostent(int);
190 void endhostent(void);
192 void endnetent(void);
193 void setprotoent(int);
194 void endprotoent(void);
195 void setservent(int);
196 void endservent(void);
199 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
200 #undef PERL_EFF_ACCESS_W_OK
201 #undef PERL_EFF_ACCESS_X_OK
203 /* F_OK unused: if stat() cannot find it... */
205 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
206 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
207 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
208 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
209 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
212 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
213 # ifdef I_SYS_SECURITY
214 # include <sys/security.h>
218 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
219 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
220 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
223 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
224 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
225 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
229 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
231 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
232 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
233 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
236 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
237 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
238 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
241 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
243 Uid_t ruid = getuid();
244 Uid_t euid = geteuid();
245 Gid_t rgid = getgid();
246 Gid_t egid = getegid();
250 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
251 Perl_croak(aTHX_ "switching effective uid is not implemented");
254 if (setreuid(euid, ruid))
257 if (setresuid(euid, ruid, (Uid_t)-1))
260 Perl_croak(aTHX_ "entering effective uid failed");
263 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
264 Perl_croak(aTHX_ "switching effective gid is not implemented");
267 if (setregid(egid, rgid))
270 if (setresgid(egid, rgid, (Gid_t)-1))
273 Perl_croak(aTHX_ "entering effective gid failed");
276 res = access(path, mode);
279 if (setreuid(ruid, euid))
282 if (setresuid(ruid, euid, (Uid_t)-1))
285 Perl_croak(aTHX_ "leaving effective uid failed");
288 if (setregid(rgid, egid))
291 if (setresgid(rgid, egid, (Gid_t)-1))
294 Perl_croak(aTHX_ "leaving effective gid failed");
299 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
300 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
301 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
304 #if !defined(PERL_EFF_ACCESS_R_OK)
305 /* With it or without it: anyway you get a warning: either that
306 it is unused, or it is declared static and never defined.
309 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
311 Perl_croak(aTHX_ "switching effective uid is not implemented");
324 const char *mode = "r";
327 if (PL_op->op_private & OPpOPEN_IN_RAW)
329 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
331 fp = PerlProc_popen(tmps, (char *)mode);
333 const char *type = NULL;
334 if (PL_curcop->cop_io) {
335 type = SvPV_nolen(PL_curcop->cop_io);
338 PerlIO_apply_layers(aTHX_ fp,mode,type);
340 if (gimme == G_VOID) {
342 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
346 else if (gimme == G_SCALAR) {
349 PL_rs = &PL_sv_undef;
350 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
351 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
363 if (sv_gets(sv, fp, 0) == Nullch) {
367 XPUSHs(sv_2mortal(sv));
368 if (SvLEN(sv) - SvCUR(sv) > 20) {
369 SvPV_shrink_to_cur(sv);
374 STATUS_NATIVE_SET(PerlProc_pclose(fp));
375 TAINT; /* "I believe that this is not gratuitous!" */
378 STATUS_NATIVE_SET(-1);
379 if (gimme == G_SCALAR)
390 tryAMAGICunTARGET(iter, -1);
392 /* Note that we only ever get here if File::Glob fails to load
393 * without at the same time croaking, for some reason, or if
394 * perl was built with PERL_EXTERNAL_GLOB */
401 * The external globbing program may use things we can't control,
402 * so for security reasons we must assume the worst.
405 taint_proper(PL_no_security, "glob");
409 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
410 PL_last_in_gv = (GV*)*PL_stack_sp--;
412 SAVESPTR(PL_rs); /* This is not permanent, either. */
413 PL_rs = sv_2mortal(newSVpvn("\000", 1));
416 *SvPVX(PL_rs) = '\n';
420 result = do_readline();
427 PL_last_in_gv = cGVOP_gv;
428 return do_readline();
437 if (SP - MARK != 1) {
439 do_join(TARG, &PL_sv_no, MARK, SP);
446 tmps = SvPV(tmpsv, len);
447 if ((!tmps || !len) && PL_errgv) {
449 (void)SvUPGRADE(error, SVt_PV);
450 if (SvPOK(error) && SvCUR(error))
451 sv_catpv(error, "\t...caught");
453 tmps = SvPV(tmpsv, len);
456 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
458 Perl_warn(aTHX_ "%"SVf, tmpsv);
470 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
472 if (SP - MARK != 1) {
474 do_join(TARG, &PL_sv_no, MARK, SP);
476 tmps = SvPV(tmpsv, len);
482 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
486 (void)SvUPGRADE(error, SVt_PV);
487 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
489 SvSetSV(error,tmpsv);
490 else if (sv_isobject(error)) {
491 HV *stash = SvSTASH(SvRV(error));
492 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
494 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
495 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
502 call_sv((SV*)GvCV(gv),
503 G_SCALAR|G_EVAL|G_KEEPERR);
504 sv_setsv(error,*PL_stack_sp--);
510 if (SvPOK(error) && SvCUR(error))
511 sv_catpv(error, "\t...propagated");
513 tmps = SvPV(tmpsv, len);
517 tmpsv = sv_2mortal(newSVpvn("Died", 4));
519 DIE(aTHX_ "%"SVf, tmpsv);
539 DIE(aTHX_ PL_no_usym, "filehandle");
540 if ((io = GvIOp(gv)))
541 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
543 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
544 /* Method's args are same as ours ... */
545 /* ... except handle is replaced by the object */
546 *MARK-- = SvTIED_obj((SV*)io, mg);
550 call_method("OPEN", G_SCALAR);
563 tmps = SvPV(sv, len);
564 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
567 PUSHi( (I32)PL_forkprocess );
568 else if (PL_forkprocess == 0) /* we are a new child */
587 if (gv && (io = GvIO(gv))
588 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
591 XPUSHs(SvTIED_obj((SV*)io, mg));
594 call_method("CLOSE", G_SCALAR);
600 PUSHs(boolSV(do_close(gv, TRUE)));
620 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
621 DIE(aTHX_ PL_no_usym, "filehandle");
626 do_close(rgv, FALSE);
628 do_close(wgv, FALSE);
630 if (PerlProc_pipe(fd) < 0)
633 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
634 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
635 IoOFP(rstio) = IoIFP(rstio);
636 IoIFP(wstio) = IoOFP(wstio);
637 IoTYPE(rstio) = IoTYPE_RDONLY;
638 IoTYPE(wstio) = IoTYPE_WRONLY;
640 if (!IoIFP(rstio) || !IoOFP(wstio)) {
641 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
642 else PerlLIO_close(fd[0]);
643 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
644 else PerlLIO_close(fd[1]);
647 #if defined(HAS_FCNTL) && defined(F_SETFD)
648 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
649 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
656 DIE(aTHX_ PL_no_func, "pipe");
672 if (gv && (io = GvIO(gv))
673 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
676 XPUSHs(SvTIED_obj((SV*)io, mg));
679 call_method("FILENO", G_SCALAR);
685 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
686 /* Can't do this because people seem to do things like
687 defined(fileno($foo)) to check whether $foo is a valid fh.
688 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
689 report_evil_fh(gv, io, PL_op->op_type);
694 PUSHi(PerlIO_fileno(fp));
706 anum = PerlLIO_umask(0);
707 (void)PerlLIO_umask(anum);
710 anum = PerlLIO_umask(POPi);
711 TAINT_PROPER("umask");
714 /* Only DIE if trying to restrict permissions on `user' (self).
715 * Otherwise it's harmless and more useful to just return undef
716 * since 'group' and 'other' concepts probably don't exist here. */
717 if (MAXARG >= 1 && (POPi & 0700))
718 DIE(aTHX_ "umask not implemented");
719 XPUSHs(&PL_sv_undef);
741 if (gv && (io = GvIO(gv))
742 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
745 XPUSHs(SvTIED_obj((SV*)io, mg));
750 call_method("BINMODE", G_SCALAR);
757 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
758 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
759 report_evil_fh(gv, io, PL_op->op_type);
760 SETERRNO(EBADF,RMS_IFI);
765 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
766 (discp) ? SvPV_nolen(discp) : Nullch)) {
767 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
768 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
769 mode_from_discipline(discp),
770 (discp) ? SvPV_nolen(discp) : Nullch)) {
791 I32 markoff = MARK - PL_stack_base;
792 const char *methname;
793 int how = PERL_MAGIC_tied;
797 switch(SvTYPE(varsv)) {
799 methname = "TIEHASH";
800 HvEITER((HV *)varsv) = Null(HE *);
803 methname = "TIEARRAY";
806 #ifdef GV_UNIQUE_CHECK
807 if (GvUNIQUE((GV*)varsv)) {
808 Perl_croak(aTHX_ "Attempt to tie unique GV");
811 methname = "TIEHANDLE";
812 how = PERL_MAGIC_tiedscalar;
813 /* For tied filehandles, we apply tiedscalar magic to the IO
814 slot of the GP rather than the GV itself. AMS 20010812 */
816 GvIOp(varsv) = newIO();
817 varsv = (SV *)GvIOp(varsv);
820 methname = "TIESCALAR";
821 how = PERL_MAGIC_tiedscalar;
825 if (sv_isobject(*MARK)) {
827 PUSHSTACKi(PERLSI_MAGIC);
829 EXTEND(SP,(I32)items);
833 call_method(methname, G_SCALAR);
836 /* Not clear why we don't call call_method here too.
837 * perhaps to get different error message ?
839 stash = gv_stashsv(*MARK, FALSE);
840 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
841 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
845 PUSHSTACKi(PERLSI_MAGIC);
847 EXTEND(SP,(I32)items);
851 call_sv((SV*)GvCV(gv), G_SCALAR);
857 if (sv_isobject(sv)) {
858 sv_unmagic(varsv, how);
859 /* Croak if a self-tie on an aggregate is attempted. */
860 if (varsv == SvRV(sv) &&
861 (SvTYPE(varsv) == SVt_PVAV ||
862 SvTYPE(varsv) == SVt_PVHV))
864 "Self-ties of arrays and hashes are not supported");
865 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
868 SP = PL_stack_base + markoff;
878 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
879 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
881 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
884 if ((mg = SvTIED_mg(sv, how))) {
885 SV *obj = SvRV(SvTIED_obj(sv, mg));
889 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
890 isGV(gv) && (cv = GvCV(gv))) {
892 XPUSHs(SvTIED_obj((SV*)gv, mg));
893 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
896 call_sv((SV *)cv, G_VOID);
900 else if (ckWARN(WARN_UNTIE)) {
901 if (mg && SvREFCNT(obj) > 1)
902 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
903 "untie attempted while %"UVuf" inner references still exist",
904 (UV)SvREFCNT(obj) - 1 ) ;
908 sv_unmagic(sv, how) ;
917 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
918 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
920 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
923 if ((mg = SvTIED_mg(sv, how))) {
924 SV *osv = SvTIED_obj(sv, mg);
925 if (osv == mg->mg_obj)
926 osv = sv_mortalcopy(osv);
944 sv = sv_mortalcopy(&PL_sv_no);
945 sv_setpv(sv, "AnyDBM_File");
946 stash = gv_stashsv(sv, FALSE);
947 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
949 require_pv("AnyDBM_File.pm");
951 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
952 DIE(aTHX_ "No dbm on this machine");
962 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
964 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
967 call_sv((SV*)GvCV(gv), G_SCALAR);
970 if (!sv_isobject(TOPs)) {
975 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
978 call_sv((SV*)GvCV(gv), G_SCALAR);
982 if (sv_isobject(TOPs)) {
983 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
984 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1006 struct timeval timebuf;
1007 struct timeval *tbuf = &timebuf;
1011 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1016 # if BYTEORDER & 0xf0000
1017 # define ORDERBYTE (0x88888888 - BYTEORDER)
1019 # define ORDERBYTE (0x4444 - BYTEORDER)
1025 for (i = 1; i <= 3; i++) {
1033 /* little endians can use vecs directly */
1034 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1041 masksize = NFDBITS / NBBY;
1043 masksize = sizeof(long); /* documented int, everyone seems to use long */
1045 Zero(&fd_sets[0], 4, char*);
1048 # if SELECT_MIN_BITS == 1
1049 growsize = sizeof(fd_set);
1051 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1052 # undef SELECT_MIN_BITS
1053 # define SELECT_MIN_BITS __FD_SETSIZE
1055 /* If SELECT_MIN_BITS is greater than one we most probably will want
1056 * to align the sizes with SELECT_MIN_BITS/8 because for example
1057 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1058 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1059 * on (sets/tests/clears bits) is 32 bits. */
1060 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1068 timebuf.tv_sec = (long)value;
1069 value -= (NV)timebuf.tv_sec;
1070 timebuf.tv_usec = (long)(value * 1000000.0);
1073 tbuf = Null(struct timeval*);
1075 for (i = 1; i <= 3; i++) {
1081 else if (!SvPOK(sv))
1082 SvPV_force(sv,n_a); /* force string conversion */
1085 Sv_Grow(sv, growsize);
1089 while (++j <= growsize) {
1093 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1095 New(403, fd_sets[i], growsize, char);
1096 for (offset = 0; offset < growsize; offset += masksize) {
1097 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1098 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1101 fd_sets[i] = SvPVX(sv);
1105 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1106 /* Can't make just the (void*) conditional because that would be
1107 * cpp #if within cpp macro, and not all compilers like that. */
1108 nfound = PerlSock_select(
1110 (Select_fd_set_t) fd_sets[1],
1111 (Select_fd_set_t) fd_sets[2],
1112 (Select_fd_set_t) fd_sets[3],
1113 (void*) tbuf); /* Workaround for compiler bug. */
1115 nfound = PerlSock_select(
1117 (Select_fd_set_t) fd_sets[1],
1118 (Select_fd_set_t) fd_sets[2],
1119 (Select_fd_set_t) fd_sets[3],
1122 for (i = 1; i <= 3; i++) {
1125 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1127 for (offset = 0; offset < growsize; offset += masksize) {
1128 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1129 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1131 Safefree(fd_sets[i]);
1138 PUSHs(&PL_sv_undef);
1141 if (GIMME == G_ARRAY && tbuf) {
1142 value = (NV)(timebuf.tv_sec) +
1143 (NV)(timebuf.tv_usec) / 1000000.0;
1144 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1145 sv_setnv(sv, value);
1149 DIE(aTHX_ "select not implemented");
1154 Perl_setdefout(pTHX_ GV *gv)
1157 (void)SvREFCNT_inc(gv);
1159 SvREFCNT_dec(PL_defoutgv);
1166 GV *newdefout, *egv;
1169 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1171 egv = GvEGV(PL_defoutgv);
1176 XPUSHs(&PL_sv_undef);
1178 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1179 if (gvp && *gvp == egv) {
1180 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1184 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1189 if (!GvIO(newdefout))
1190 gv_IOadd(newdefout);
1191 setdefout(newdefout);
1209 if (gv && (io = GvIO(gv))
1210 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1212 I32 gimme = GIMME_V;
1214 XPUSHs(SvTIED_obj((SV*)io, mg));
1217 call_method("GETC", gimme);
1220 if (gimme == G_SCALAR)
1221 SvSetMagicSV_nosteal(TARG, TOPs);
1224 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1225 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1226 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1227 report_evil_fh(gv, io, PL_op->op_type);
1228 SETERRNO(EBADF,RMS_IFI);
1232 sv_setpv(TARG, " ");
1233 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1234 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1235 /* Find out how many bytes the char needs */
1236 Size_t len = UTF8SKIP(SvPVX(TARG));
1239 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1240 SvCUR_set(TARG,1+len);
1250 return pp_sysread();
1254 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1257 register PERL_CONTEXT *cx;
1258 I32 gimme = GIMME_V;
1263 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1265 cx->blk_sub.retop = retop;
1266 PAD_SET_CUR(CvPADLIST(cv), 1);
1268 setdefout(gv); /* locally select filehandle so $% et al work */
1301 SV *tmpsv = sv_newmortal();
1302 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1303 name = SvPV_nolen(tmpsv);
1306 DIE(aTHX_ "Undefined format \"%s\" called", name);
1307 DIE(aTHX_ "Not a format reference");
1310 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1312 IoFLAGS(io) &= ~IOf_DIDTOP;
1313 return doform(cv,gv,PL_op->op_next);
1319 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1320 register IO *io = GvIOp(gv);
1321 PerlIO *ofp = IoOFP(io);
1325 register PERL_CONTEXT *cx;
1327 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1328 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1331 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1332 PL_formtarget != PL_toptarget)
1336 if (!IoTOP_GV(io)) {
1340 if (!IoTOP_NAME(io)) {
1341 if (!IoFMT_NAME(io))
1342 IoFMT_NAME(io) = savepv(GvNAME(gv));
1343 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1344 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1345 if ((topgv && GvFORM(topgv)) ||
1346 !gv_fetchpv("top",FALSE,SVt_PVFM))
1347 IoTOP_NAME(io) = savesvpv(topname);
1349 IoTOP_NAME(io) = savepvn("top", 3);
1351 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1352 if (!topgv || !GvFORM(topgv)) {
1353 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1356 IoTOP_GV(io) = topgv;
1358 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1359 I32 lines = IoLINES_LEFT(io);
1360 char *s = SvPVX(PL_formtarget);
1361 if (lines <= 0) /* Yow, header didn't even fit!!! */
1363 while (lines-- > 0) {
1364 s = strchr(s, '\n');
1370 STRLEN save = SvCUR(PL_formtarget);
1371 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1372 do_print(PL_formtarget, ofp);
1373 SvCUR_set(PL_formtarget, save);
1374 sv_chop(PL_formtarget, s);
1375 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1378 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1379 do_print(PL_formfeed, ofp);
1380 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1382 PL_formtarget = PL_toptarget;
1383 IoFLAGS(io) |= IOf_DIDTOP;
1386 DIE(aTHX_ "bad top format reference");
1391 SV *sv = sv_newmortal();
1392 gv_efullname4(sv, fgv, Nullch, FALSE);
1393 name = SvPV_nolen(sv);
1396 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1399 DIE(aTHX_ "Undefined top format called");
1403 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1404 return doform(cv,gv,PL_op);
1408 POPBLOCK(cx,PL_curpm);
1414 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1416 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1417 else if (ckWARN(WARN_CLOSED))
1418 report_evil_fh(gv, io, PL_op->op_type);
1423 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1424 if (ckWARN(WARN_IO))
1425 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1427 if (!do_print(PL_formtarget, fp))
1430 FmLINES(PL_formtarget) = 0;
1431 SvCUR_set(PL_formtarget, 0);
1432 *SvEND(PL_formtarget) = '\0';
1433 if (IoFLAGS(io) & IOf_FLUSH)
1434 (void)PerlIO_flush(fp);
1439 PL_formtarget = PL_bodytarget;
1441 return cx->blk_sub.retop;
1446 dVAR; dSP; dMARK; dORIGMARK;
1453 if (PL_op->op_flags & OPf_STACKED)
1458 if (gv && (io = GvIO(gv))
1459 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1461 if (MARK == ORIGMARK) {
1464 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1468 *MARK = SvTIED_obj((SV*)io, mg);
1471 call_method("PRINTF", G_SCALAR);
1474 MARK = ORIGMARK + 1;
1481 if (!(io = GvIO(gv))) {
1482 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1483 report_evil_fh(gv, io, PL_op->op_type);
1484 SETERRNO(EBADF,RMS_IFI);
1487 else if (!(fp = IoOFP(io))) {
1488 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1490 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1491 else if (ckWARN(WARN_CLOSED))
1492 report_evil_fh(gv, io, PL_op->op_type);
1494 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1498 do_sprintf(sv, SP - MARK, MARK + 1);
1499 if (!do_print(sv, fp))
1502 if (IoFLAGS(io) & IOf_FLUSH)
1503 if (PerlIO_flush(fp) == EOF)
1514 PUSHs(&PL_sv_undef);
1535 /* Need TIEHANDLE method ? */
1537 tmps = SvPV(sv, len);
1538 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1539 IoLINES(GvIOp(gv)) = 0;
1543 PUSHs(&PL_sv_undef);
1550 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1557 Sock_size_t bufsize;
1566 bool charstart = FALSE;
1567 STRLEN charskip = 0;
1571 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1572 && gv && (io = GvIO(gv))
1573 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1578 *MARK = SvTIED_obj((SV*)io, mg);
1580 call_method("READ", G_SCALAR);
1593 sv_setpvn(bufsv, "", 0);
1594 length = SvIVx(*++MARK);
1597 offset = SvIVx(*++MARK);
1601 if (!io || !IoIFP(io)) {
1602 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1603 report_evil_fh(gv, io, PL_op->op_type);
1604 SETERRNO(EBADF,RMS_IFI);
1607 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1608 buffer = SvPVutf8_force(bufsv, blen);
1609 /* UTF-8 may not have been set if they are all low bytes */
1614 buffer = SvPV_force(bufsv, blen);
1615 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1618 DIE(aTHX_ "Negative length");
1626 if (PL_op->op_type == OP_RECV) {
1627 char namebuf[MAXPATHLEN];
1628 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1629 bufsize = sizeof (struct sockaddr_in);
1631 bufsize = sizeof namebuf;
1633 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1637 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1638 /* 'offset' means 'flags' here */
1639 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1640 (struct sockaddr *)namebuf, &bufsize);
1644 /* Bogus return without padding */
1645 bufsize = sizeof (struct sockaddr_in);
1647 SvCUR_set(bufsv, count);
1648 *SvEND(bufsv) = '\0';
1649 (void)SvPOK_only(bufsv);
1653 /* This should not be marked tainted if the fp is marked clean */
1654 if (!(IoFLAGS(io) & IOf_UNTAINT))
1655 SvTAINTED_on(bufsv);
1657 sv_setpvn(TARG, namebuf, bufsize);
1662 if (PL_op->op_type == OP_RECV)
1663 DIE(aTHX_ PL_no_sock_func, "recv");
1665 if (DO_UTF8(bufsv)) {
1666 /* offset adjust in characters not bytes */
1667 blen = sv_len_utf8(bufsv);
1670 if (-offset > (int)blen)
1671 DIE(aTHX_ "Offset outside string");
1674 if (DO_UTF8(bufsv)) {
1675 /* convert offset-as-chars to offset-as-bytes */
1676 if (offset >= (int)blen)
1677 offset += SvCUR(bufsv) - blen;
1679 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1682 bufsize = SvCUR(bufsv);
1683 /* Allocating length + offset + 1 isn't perfect in the case of reading
1684 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1686 (should be 2 * length + offset + 1, or possibly something longer if
1687 PL_encoding is true) */
1688 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1689 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1690 Zero(buffer+bufsize, offset-bufsize, char);
1692 buffer = buffer + offset;
1694 read_target = bufsv;
1696 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1697 concatenate it to the current buffer. */
1699 /* Truncate the existing buffer to the start of where we will be
1701 SvCUR_set(bufsv, offset);
1703 read_target = sv_newmortal();
1704 SvUPGRADE(read_target, SVt_PV);
1705 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1708 if (PL_op->op_type == OP_SYSREAD) {
1709 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1710 if (IoTYPE(io) == IoTYPE_SOCKET) {
1711 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1717 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1722 #ifdef HAS_SOCKET__bad_code_maybe
1723 if (IoTYPE(io) == IoTYPE_SOCKET) {
1724 char namebuf[MAXPATHLEN];
1725 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1726 bufsize = sizeof (struct sockaddr_in);
1728 bufsize = sizeof namebuf;
1730 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1731 (struct sockaddr *)namebuf, &bufsize);
1736 count = PerlIO_read(IoIFP(io), buffer, length);
1737 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1738 if (count == 0 && PerlIO_error(IoIFP(io)))
1742 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1743 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1746 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1747 *SvEND(read_target) = '\0';
1748 (void)SvPOK_only(read_target);
1749 if (fp_utf8 && !IN_BYTES) {
1750 /* Look at utf8 we got back and count the characters */
1751 char *bend = buffer + count;
1752 while (buffer < bend) {
1754 skip = UTF8SKIP(buffer);
1757 if (buffer - charskip + skip > bend) {
1758 /* partial character - try for rest of it */
1759 length = skip - (bend-buffer);
1760 offset = bend - SvPVX(bufsv);
1772 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1773 provided amount read (count) was what was requested (length)
1775 if (got < wanted && count == length) {
1776 length = wanted - got;
1777 offset = bend - SvPVX(bufsv);
1780 /* return value is character count */
1784 else if (buffer_utf8) {
1785 /* Let svcatsv upgrade the bytes we read in to utf8.
1786 The buffer is a mortal so will be freed soon. */
1787 sv_catsv_nomg(bufsv, read_target);
1790 /* This should not be marked tainted if the fp is marked clean */
1791 if (!(IoFLAGS(io) & IOf_UNTAINT))
1792 SvTAINTED_on(bufsv);
1805 int items = (SP - PL_stack_base) - TOPMARK;
1809 sv = sv_2mortal(newSViv(sv_len(*SP)));
1818 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1829 if (PL_op->op_type == OP_SYSWRITE
1830 && gv && (io = GvIO(gv))
1831 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1836 *MARK = SvTIED_obj((SV*)io, mg);
1838 call_method("WRITE", G_SCALAR);
1849 #if Size_t_size > IVSIZE
1850 length = (Size_t)SvNVx(*++MARK);
1852 length = (Size_t)SvIVx(*++MARK);
1854 if ((SSize_t)length < 0)
1855 DIE(aTHX_ "Negative length");
1858 if (!io || !IoIFP(io)) {
1860 if (ckWARN(WARN_CLOSED))
1861 report_evil_fh(gv, io, PL_op->op_type);
1862 SETERRNO(EBADF,RMS_IFI);
1866 if (PerlIO_isutf8(IoIFP(io))) {
1867 if (!SvUTF8(bufsv)) {
1868 bufsv = sv_2mortal(newSVsv(bufsv));
1869 buffer = sv_2pvutf8(bufsv, &blen);
1871 buffer = SvPV(bufsv, blen);
1874 if (DO_UTF8(bufsv)) {
1875 /* Not modifying source SV, so making a temporary copy. */
1876 bufsv = sv_2mortal(newSVsv(bufsv));
1877 sv_utf8_downgrade(bufsv, FALSE);
1879 buffer = SvPV(bufsv, blen);
1882 if (PL_op->op_type == OP_SYSWRITE) {
1884 if (DO_UTF8(bufsv)) {
1885 /* length and offset are in chars */
1886 blen = sv_len_utf8(bufsv);
1889 offset = SvIVx(*++MARK);
1891 if (-offset > (IV)blen)
1892 DIE(aTHX_ "Offset outside string");
1894 } else if (offset >= (IV)blen && blen > 0)
1895 DIE(aTHX_ "Offset outside string");
1898 if (length > blen - offset)
1899 length = blen - offset;
1900 if (DO_UTF8(bufsv)) {
1901 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1902 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1905 buffer = buffer+offset;
1907 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1908 if (IoTYPE(io) == IoTYPE_SOCKET) {
1909 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1915 /* See the note at doio.c:do_print about filesize limits. --jhi */
1916 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1921 else if (SP > MARK) {
1924 sockbuf = SvPVx(*++MARK, mlen);
1925 /* length is really flags */
1926 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1927 length, (struct sockaddr *)sockbuf, mlen);
1930 /* length is really flags */
1931 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1934 DIE(aTHX_ PL_no_sock_func, "send");
1940 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1941 #if Size_t_size > IVSIZE
1955 return pp_sysread();
1966 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1968 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1970 if (io && !IoIFP(io)) {
1971 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1973 IoFLAGS(io) &= ~IOf_START;
1974 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1975 sv_setpvn(GvSV(gv), "-", 1);
1976 SvSETMAGIC(GvSV(gv));
1978 else if (!nextargv(gv))
1983 gv = PL_last_in_gv; /* eof */
1986 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1988 if (gv && (io = GvIO(gv))
1989 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1992 XPUSHs(SvTIED_obj((SV*)io, mg));
1995 call_method("EOF", G_SCALAR);
2001 PUSHs(boolSV(!gv || do_eof(gv)));
2015 gv = PL_last_in_gv = (GV*)POPs;
2017 if (gv && (io = GvIO(gv))
2018 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2021 XPUSHs(SvTIED_obj((SV*)io, mg));
2024 call_method("TELL", G_SCALAR);
2030 #if LSEEKSIZE > IVSIZE
2031 PUSHn( do_tell(gv) );
2033 PUSHi( do_tell(gv) );
2040 return pp_sysseek();
2049 #if LSEEKSIZE > IVSIZE
2050 Off_t offset = (Off_t)SvNVx(POPs);
2052 Off_t offset = (Off_t)SvIVx(POPs);
2056 gv = PL_last_in_gv = (GV*)POPs;
2058 if (gv && (io = GvIO(gv))
2059 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2062 XPUSHs(SvTIED_obj((SV*)io, mg));
2063 #if LSEEKSIZE > IVSIZE
2064 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2066 XPUSHs(sv_2mortal(newSViv(offset)));
2068 XPUSHs(sv_2mortal(newSViv(whence)));
2071 call_method("SEEK", G_SCALAR);
2077 if (PL_op->op_type == OP_SEEK)
2078 PUSHs(boolSV(do_seek(gv, offset, whence)));
2080 Off_t sought = do_sysseek(gv, offset, whence);
2082 PUSHs(&PL_sv_undef);
2085 #if LSEEKSIZE > IVSIZE
2090 : newSVpvn(zero_but_true, ZBTLEN);
2091 PUSHs(sv_2mortal(sv));
2100 /* There seems to be no consensus on the length type of truncate()
2101 * and ftruncate(), both off_t and size_t have supporters. In
2102 * general one would think that when using large files, off_t is
2103 * at least as wide as size_t, so using an off_t should be okay. */
2104 /* XXX Configure probe for the length type of *truncate() needed XXX */
2107 #if Off_t_size > IVSIZE
2112 /* Checking for length < 0 is problematic as the type might or
2113 * might not be signed: if it is not, clever compilers will moan. */
2114 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2121 if (PL_op->op_flags & OPf_SPECIAL) {
2122 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2131 TAINT_PROPER("truncate");
2132 if (!(fp = IoIFP(io))) {
2138 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2140 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2151 if (SvTYPE(sv) == SVt_PVGV) {
2152 tmpgv = (GV*)sv; /* *main::FRED for example */
2153 goto do_ftruncate_gv;
2155 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2156 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2157 goto do_ftruncate_gv;
2159 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2160 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2161 goto do_ftruncate_io;
2164 name = SvPV(sv, n_a);
2165 TAINT_PROPER("truncate");
2167 if (truncate(name, len) < 0)
2173 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2176 if (my_chsize(tmpfd, len) < 0)
2178 PerlLIO_close(tmpfd);
2187 SETERRNO(EBADF,RMS_IFI);
2201 unsigned int func = POPu;
2202 const int optype = PL_op->op_type;
2206 IO *io = gv ? GvIOn(gv) : 0;
2208 if (!io || !argsv || !IoIFP(io)) {
2209 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2210 report_evil_fh(gv, io, PL_op->op_type);
2211 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2215 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2218 s = SvPV_force(argsv, len);
2219 need = IOCPARM_LEN(func);
2221 s = Sv_Grow(argsv, need + 1);
2222 SvCUR_set(argsv, need);
2225 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2228 retval = SvIV(argsv);
2229 s = INT2PTR(char*,retval); /* ouch */
2232 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2234 if (optype == OP_IOCTL)
2236 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2238 DIE(aTHX_ "ioctl is not implemented");
2242 DIE(aTHX_ "fcntl is not implemented");
2244 #if defined(OS2) && defined(__EMX__)
2245 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2247 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2251 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2253 if (s[SvCUR(argsv)] != 17)
2254 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2256 s[SvCUR(argsv)] = 0; /* put our null back */
2257 SvSETMAGIC(argsv); /* Assume it has changed */
2266 PUSHp(zero_but_true, ZBTLEN);
2287 if (gv && (io = GvIO(gv)))
2294 (void)PerlIO_flush(fp);
2295 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2298 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2299 report_evil_fh(gv, io, PL_op->op_type);
2301 SETERRNO(EBADF,RMS_IFI);
2306 DIE(aTHX_ PL_no_func, "flock()");
2318 int protocol = POPi;
2324 io = gv ? GvIOn(gv) : NULL;
2327 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2328 report_evil_fh(gv, io, PL_op->op_type);
2330 do_close(gv, FALSE);
2331 SETERRNO(EBADF,LIB_INVARG);
2336 do_close(gv, FALSE);
2338 TAINT_PROPER("socket");
2339 fd = PerlSock_socket(domain, type, protocol);
2342 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2343 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2344 IoTYPE(io) = IoTYPE_SOCKET;
2345 if (!IoIFP(io) || !IoOFP(io)) {
2346 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2347 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2348 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2351 #if defined(HAS_FCNTL) && defined(F_SETFD)
2352 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2356 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2361 DIE(aTHX_ PL_no_sock_func, "socket");
2367 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2373 int protocol = POPi;
2380 io1 = gv1 ? GvIOn(gv1) : NULL;
2381 io2 = gv2 ? GvIOn(gv2) : NULL;
2382 if (!gv1 || !gv2 || !io1 || !io2) {
2383 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2385 report_evil_fh(gv1, io1, PL_op->op_type);
2387 report_evil_fh(gv1, io2, PL_op->op_type);
2390 do_close(gv1, FALSE);
2392 do_close(gv2, FALSE);
2397 do_close(gv1, FALSE);
2399 do_close(gv2, FALSE);
2401 TAINT_PROPER("socketpair");
2402 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2404 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2405 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2406 IoTYPE(io1) = IoTYPE_SOCKET;
2407 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2408 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2409 IoTYPE(io2) = IoTYPE_SOCKET;
2410 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2411 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2412 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2413 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2414 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2415 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2416 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2419 #if defined(HAS_FCNTL) && defined(F_SETFD)
2420 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2421 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2426 DIE(aTHX_ PL_no_sock_func, "socketpair");
2434 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2435 extern void GETPRIVMODE();
2436 extern void GETUSERMODE();
2441 register IO *io = GvIOn(gv);
2445 int mpeprivmode = 0;
2448 if (!io || !IoIFP(io))
2451 addr = SvPV(addrsv, len);
2452 TAINT_PROPER("bind");
2453 #ifdef MPE /* Deal with MPE bind() peculiarities */
2454 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2455 /* The address *MUST* stupidly be zero. */
2456 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2457 /* PRIV mode is required to bind() to ports < 1024. */
2458 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2459 ((struct sockaddr_in *)addr)->sin_port > 0) {
2460 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2465 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2466 (struct sockaddr *)addr, len) >= 0)
2469 #ifdef MPE /* Switch back to USER mode */
2480 if (ckWARN(WARN_CLOSED))
2481 report_evil_fh(gv, io, PL_op->op_type);
2482 SETERRNO(EBADF,SS_IVCHAN);
2485 DIE(aTHX_ PL_no_sock_func, "bind");
2496 register IO *io = GvIOn(gv);
2499 if (!io || !IoIFP(io))
2502 addr = SvPV(addrsv, len);
2503 TAINT_PROPER("connect");
2504 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2510 if (ckWARN(WARN_CLOSED))
2511 report_evil_fh(gv, io, PL_op->op_type);
2512 SETERRNO(EBADF,SS_IVCHAN);
2515 DIE(aTHX_ PL_no_sock_func, "connect");
2525 register IO *io = gv ? GvIOn(gv) : NULL;
2527 if (!gv || !io || !IoIFP(io))
2530 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2536 if (ckWARN(WARN_CLOSED))
2537 report_evil_fh(gv, io, PL_op->op_type);
2538 SETERRNO(EBADF,SS_IVCHAN);
2541 DIE(aTHX_ PL_no_sock_func, "listen");
2553 char namebuf[MAXPATHLEN];
2554 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2555 Sock_size_t len = sizeof (struct sockaddr_in);
2557 Sock_size_t len = sizeof namebuf;
2570 if (!gstio || !IoIFP(gstio))
2574 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2578 do_close(ngv, FALSE);
2579 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2580 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2581 IoTYPE(nstio) = IoTYPE_SOCKET;
2582 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2583 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2584 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2585 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2588 #if defined(HAS_FCNTL) && defined(F_SETFD)
2589 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2593 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2594 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2596 #ifdef __SCO_VERSION__
2597 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2600 PUSHp(namebuf, len);
2604 if (ckWARN(WARN_CLOSED))
2605 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2606 SETERRNO(EBADF,SS_IVCHAN);
2612 DIE(aTHX_ PL_no_sock_func, "accept");
2622 register IO *io = GvIOn(gv);
2624 if (!io || !IoIFP(io))
2627 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2631 if (ckWARN(WARN_CLOSED))
2632 report_evil_fh(gv, io, PL_op->op_type);
2633 SETERRNO(EBADF,SS_IVCHAN);
2636 DIE(aTHX_ PL_no_sock_func, "shutdown");
2643 return pp_ssockopt();
2645 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2653 int optype = PL_op->op_type;
2656 unsigned int optname;
2662 if (optype == OP_GSOCKOPT)
2663 sv = sv_2mortal(NEWSV(22, 257));
2666 optname = (unsigned int) POPi;
2667 lvl = (unsigned int) POPi;
2671 if (!io || !IoIFP(io))
2674 fd = PerlIO_fileno(IoIFP(io));
2678 (void)SvPOK_only(sv);
2682 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2697 aint = (int)SvIV(sv);
2701 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2710 if (ckWARN(WARN_CLOSED))
2711 report_evil_fh(gv, io, optype);
2712 SETERRNO(EBADF,SS_IVCHAN);
2717 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2724 return pp_getpeername();
2726 DIE(aTHX_ PL_no_sock_func, "getsockname");
2734 int optype = PL_op->op_type;
2738 register IO *io = GvIOn(gv);
2741 if (!io || !IoIFP(io))
2744 sv = sv_2mortal(NEWSV(22, 257));
2745 (void)SvPOK_only(sv);
2749 fd = PerlIO_fileno(IoIFP(io));
2751 case OP_GETSOCKNAME:
2752 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2755 case OP_GETPEERNAME:
2756 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2758 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2760 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";
2761 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2762 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2763 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2764 sizeof(u_short) + sizeof(struct in_addr))) {
2771 #ifdef BOGUS_GETNAME_RETURN
2772 /* Interactive Unix, getpeername() and getsockname()
2773 does not return valid namelen */
2774 if (len == BOGUS_GETNAME_RETURN)
2775 len = sizeof(struct sockaddr);
2783 if (ckWARN(WARN_CLOSED))
2784 report_evil_fh(gv, io, optype);
2785 SETERRNO(EBADF,SS_IVCHAN);
2790 DIE(aTHX_ PL_no_sock_func, "getpeername");
2809 if (PL_op->op_flags & OPf_REF) {
2811 if (PL_op->op_type == OP_LSTAT) {
2812 if (gv != PL_defgv) {
2813 if (ckWARN(WARN_IO))
2814 Perl_warner(aTHX_ packWARN(WARN_IO),
2815 "lstat() on filehandle %s", GvENAME(gv));
2816 } else if (PL_laststype != OP_LSTAT)
2817 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2821 if (gv != PL_defgv) {
2822 PL_laststype = OP_STAT;
2824 sv_setpv(PL_statname, "");
2825 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2826 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2828 if (PL_laststatval < 0) {
2829 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2830 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2836 if (SvTYPE(sv) == SVt_PVGV) {
2840 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2842 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2843 Perl_warner(aTHX_ packWARN(WARN_IO),
2844 "lstat() on filehandle %s", GvENAME(gv));
2847 sv_setpv(PL_statname, SvPV(sv,n_a));
2849 PL_laststype = PL_op->op_type;
2850 if (PL_op->op_type == OP_LSTAT)
2851 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2853 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2854 if (PL_laststatval < 0) {
2855 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2856 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2862 if (gimme != G_ARRAY) {
2863 if (gimme != G_VOID)
2864 XPUSHs(boolSV(max));
2870 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2872 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2873 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2874 #if Uid_t_size > IVSIZE
2875 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2877 # if Uid_t_sign <= 0
2878 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2880 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2883 #if Gid_t_size > IVSIZE
2884 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2886 # if Gid_t_sign <= 0
2887 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2889 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2892 #ifdef USE_STAT_RDEV
2893 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2895 PUSHs(sv_2mortal(newSVpvn("", 0)));
2897 #if Off_t_size > IVSIZE
2898 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2900 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2903 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2904 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2905 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2907 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2908 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2909 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2911 #ifdef USE_STAT_BLOCKS
2912 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2913 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2915 PUSHs(sv_2mortal(newSVpvn("", 0)));
2916 PUSHs(sv_2mortal(newSVpvn("", 0)));
2922 /* This macro is used by the stacked filetest operators :
2923 * if the previous filetest failed, short-circuit and pass its value.
2924 * Else, discard it from the stack and continue. --rgs
2926 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2927 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2928 else { (void)POPs; PUTBACK; } \
2935 STACKED_FTEST_CHECK;
2936 #if defined(HAS_ACCESS) && defined(R_OK)
2937 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2939 result = access(POPpx, R_OK);
2954 if (cando(S_IRUSR, 0, &PL_statcache))
2963 STACKED_FTEST_CHECK;
2964 #if defined(HAS_ACCESS) && defined(W_OK)
2965 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2967 result = access(POPpx, W_OK);
2982 if (cando(S_IWUSR, 0, &PL_statcache))
2991 STACKED_FTEST_CHECK;
2992 #if defined(HAS_ACCESS) && defined(X_OK)
2993 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2995 result = access(POPpx, X_OK);
3010 if (cando(S_IXUSR, 0, &PL_statcache))
3019 STACKED_FTEST_CHECK;
3020 #ifdef PERL_EFF_ACCESS_R_OK
3021 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3023 result = PERL_EFF_ACCESS_R_OK(POPpx);
3038 if (cando(S_IRUSR, 1, &PL_statcache))
3047 STACKED_FTEST_CHECK;
3048 #ifdef PERL_EFF_ACCESS_W_OK
3049 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3051 result = PERL_EFF_ACCESS_W_OK(POPpx);
3066 if (cando(S_IWUSR, 1, &PL_statcache))
3075 STACKED_FTEST_CHECK;
3076 #ifdef PERL_EFF_ACCESS_X_OK
3077 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3079 result = PERL_EFF_ACCESS_X_OK(POPpx);
3094 if (cando(S_IXUSR, 1, &PL_statcache))
3103 STACKED_FTEST_CHECK;
3113 return pp_ftrowned();
3120 STACKED_FTEST_CHECK;
3125 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3135 STACKED_FTEST_CHECK;
3140 if (PL_statcache.st_size == 0)
3149 STACKED_FTEST_CHECK;
3154 #if Off_t_size > IVSIZE
3155 PUSHn(PL_statcache.st_size);
3157 PUSHi(PL_statcache.st_size);
3166 STACKED_FTEST_CHECK;
3171 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3179 STACKED_FTEST_CHECK;
3184 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3192 STACKED_FTEST_CHECK;
3197 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3205 STACKED_FTEST_CHECK;
3210 if (S_ISSOCK(PL_statcache.st_mode))
3219 STACKED_FTEST_CHECK;
3224 if (S_ISCHR(PL_statcache.st_mode))
3233 STACKED_FTEST_CHECK;
3238 if (S_ISBLK(PL_statcache.st_mode))
3247 STACKED_FTEST_CHECK;
3252 if (S_ISREG(PL_statcache.st_mode))
3261 STACKED_FTEST_CHECK;
3266 if (S_ISDIR(PL_statcache.st_mode))
3275 STACKED_FTEST_CHECK;
3280 if (S_ISFIFO(PL_statcache.st_mode))
3287 I32 result = my_lstat();
3291 if (S_ISLNK(PL_statcache.st_mode))
3301 STACKED_FTEST_CHECK;
3306 if (PL_statcache.st_mode & S_ISUID)
3317 STACKED_FTEST_CHECK;
3322 if (PL_statcache.st_mode & S_ISGID)
3333 STACKED_FTEST_CHECK;
3338 if (PL_statcache.st_mode & S_ISVTX)
3351 STACKED_FTEST_CHECK;
3353 if (PL_op->op_flags & OPf_REF)
3355 else if (isGV(TOPs))
3357 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3358 gv = (GV*)SvRV(POPs);
3360 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3362 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3363 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3364 else if (tmpsv && SvOK(tmpsv)) {
3366 char *tmps = SvPV(tmpsv, n_a);
3374 if (PerlLIO_isatty(fd))
3379 #if defined(atarist) /* this will work with atariST. Configure will
3380 make guesses for other systems. */
3381 # define FILE_base(f) ((f)->_base)
3382 # define FILE_ptr(f) ((f)->_ptr)
3383 # define FILE_cnt(f) ((f)->_cnt)
3384 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3394 register STDCHAR *s;
3401 STACKED_FTEST_CHECK;
3403 if (PL_op->op_flags & OPf_REF)
3405 else if (isGV(TOPs))
3407 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3408 gv = (GV*)SvRV(POPs);
3414 if (gv == PL_defgv) {
3416 io = GvIO(PL_statgv);
3419 goto really_filename;
3424 PL_laststatval = -1;
3425 sv_setpv(PL_statname, "");
3426 io = GvIO(PL_statgv);
3428 if (io && IoIFP(io)) {
3429 if (! PerlIO_has_base(IoIFP(io)))
3430 DIE(aTHX_ "-T and -B not implemented on filehandles");
3431 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3432 if (PL_laststatval < 0)
3434 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3435 if (PL_op->op_type == OP_FTTEXT)
3440 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3441 i = PerlIO_getc(IoIFP(io));
3443 (void)PerlIO_ungetc(IoIFP(io),i);
3445 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3447 len = PerlIO_get_bufsiz(IoIFP(io));
3448 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3449 /* sfio can have large buffers - limit to 512 */
3454 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3456 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3458 SETERRNO(EBADF,RMS_IFI);
3466 PL_laststype = OP_STAT;
3467 sv_setpv(PL_statname, SvPV(sv, n_a));
3468 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3469 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
3470 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3473 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3474 if (PL_laststatval < 0) {
3475 (void)PerlIO_close(fp);
3478 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3479 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3480 (void)PerlIO_close(fp);
3482 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3483 RETPUSHNO; /* special case NFS directories */
3484 RETPUSHYES; /* null file is anything */
3489 /* now scan s to look for textiness */
3490 /* XXX ASCII dependent code */
3492 #if defined(DOSISH) || defined(USEMYBINMODE)
3493 /* ignore trailing ^Z on short files */
3494 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3498 for (i = 0; i < len; i++, s++) {
3499 if (!*s) { /* null never allowed in text */
3504 else if (!(isPRINT(*s) || isSPACE(*s)))
3507 else if (*s & 128) {
3509 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3512 /* utf8 characters don't count as odd */
3513 if (UTF8_IS_START(*s)) {
3514 int ulen = UTF8SKIP(s);
3515 if (ulen < len - i) {
3517 for (j = 1; j < ulen; j++) {
3518 if (!UTF8_IS_CONTINUATION(s[j]))
3521 --ulen; /* loop does extra increment */
3531 *s != '\n' && *s != '\r' && *s != '\b' &&
3532 *s != '\t' && *s != '\f' && *s != 27)
3537 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3562 if( !tmps || !*tmps ) {
3563 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3564 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3566 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3571 deprecate("chdir('') or chdir(undef) as chdir()");
3572 tmps = SvPV(*svp, n_a);
3576 TAINT_PROPER("chdir");
3581 TAINT_PROPER("chdir");
3582 PUSHi( PerlDir_chdir(tmps) >= 0 );
3584 /* Clear the DEFAULT element of ENV so we'll get the new value
3586 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3594 dSP; dMARK; dTARGET;
3595 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3601 DIE(aTHX_ PL_no_func, "chown");
3611 TAINT_PROPER("chroot");
3612 PUSHi( chroot(tmps) >= 0 );
3615 DIE(aTHX_ PL_no_func, "chroot");
3621 dSP; dMARK; dTARGET;
3623 value = (I32)apply(PL_op->op_type, MARK, SP);
3631 dSP; dMARK; dTARGET;
3633 value = (I32)apply(PL_op->op_type, MARK, SP);
3641 dSP; dMARK; dTARGET;
3643 value = (I32)apply(PL_op->op_type, MARK, SP);
3655 char *tmps2 = POPpx;
3656 char *tmps = SvPV(TOPs, n_a);
3657 TAINT_PROPER("rename");
3659 anum = PerlLIO_rename(tmps, tmps2);
3661 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3662 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3665 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3666 (void)UNLINK(tmps2);
3667 if (!(anum = link(tmps, tmps2)))
3668 anum = UNLINK(tmps);
3681 char *tmps2 = POPpx;
3682 char *tmps = SvPV(TOPs, n_a);
3683 TAINT_PROPER("link");
3684 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3687 DIE(aTHX_ PL_no_func, "link");
3696 char *tmps2 = POPpx;
3697 char *tmps = SvPV(TOPs, n_a);
3698 TAINT_PROPER("symlink");
3699 SETi( symlink(tmps, tmps2) >= 0 );
3702 DIE(aTHX_ PL_no_func, "symlink");
3712 char buf[MAXPATHLEN];
3716 #ifndef INCOMPLETE_TAINTS
3720 len = readlink(tmps, buf, sizeof(buf) - 1);
3728 RETSETUNDEF; /* just pretend it's a normal file */
3732 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3734 S_dooneliner(pTHX_ char *cmd, char *filename)
3736 char *save_filename = filename;
3742 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3743 strcpy(cmdline, cmd);
3744 strcat(cmdline, " ");
3745 for (s = cmdline + strlen(cmdline); *filename; ) {
3750 myfp = PerlProc_popen(cmdline, "r");
3754 SV *tmpsv = sv_newmortal();
3755 /* Need to save/restore 'PL_rs' ?? */
3756 s = sv_gets(tmpsv, myfp, 0);
3757 (void)PerlProc_pclose(myfp);
3761 #ifdef HAS_SYS_ERRLIST
3766 /* you don't see this */
3768 #ifdef HAS_SYS_ERRLIST
3776 if (instr(s, errmsg)) {
3783 #define EACCES EPERM
3785 if (instr(s, "cannot make"))
3786 SETERRNO(EEXIST,RMS_FEX);
3787 else if (instr(s, "existing file"))
3788 SETERRNO(EEXIST,RMS_FEX);
3789 else if (instr(s, "ile exists"))
3790 SETERRNO(EEXIST,RMS_FEX);
3791 else if (instr(s, "non-exist"))
3792 SETERRNO(ENOENT,RMS_FNF);
3793 else if (instr(s, "does not exist"))
3794 SETERRNO(ENOENT,RMS_FNF);
3795 else if (instr(s, "not empty"))
3796 SETERRNO(EBUSY,SS_DEVOFFLINE);
3797 else if (instr(s, "cannot access"))
3798 SETERRNO(EACCES,RMS_PRV);
3800 SETERRNO(EPERM,RMS_PRV);
3803 else { /* some mkdirs return no failure indication */
3804 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3805 if (PL_op->op_type == OP_RMDIR)
3810 SETERRNO(EACCES,RMS_PRV); /* a guess */
3819 /* This macro removes trailing slashes from a directory name.
3820 * Different operating and file systems take differently to
3821 * trailing slashes. According to POSIX 1003.1 1996 Edition
3822 * any number of trailing slashes should be allowed.
3823 * Thusly we snip them away so that even non-conforming
3824 * systems are happy.
3825 * We should probably do this "filtering" for all
3826 * the functions that expect (potentially) directory names:
3827 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3828 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3830 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3831 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3834 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3835 (tmps) = savepvn((tmps), (len)); \
3855 TRIMSLASHES(tmps,len,copy);
3857 TAINT_PROPER("mkdir");
3859 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3861 SETi( dooneliner("mkdir", tmps) );
3862 oldumask = PerlLIO_umask(0);
3863 PerlLIO_umask(oldumask);
3864 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3878 TRIMSLASHES(tmps,len,copy);
3879 TAINT_PROPER("rmdir");
3881 SETi( PerlDir_rmdir(tmps) >= 0 );
3883 SETi( dooneliner("rmdir", tmps) );
3890 /* Directory calls. */
3894 #if defined(Direntry_t) && defined(HAS_READDIR)
3897 char *dirname = POPpx;
3899 register IO *io = GvIOn(gv);
3905 PerlDir_close(IoDIRP(io));
3906 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3912 SETERRNO(EBADF,RMS_DIR);
3915 DIE(aTHX_ PL_no_dir_func, "opendir");
3921 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3922 DIE(aTHX_ PL_no_dir_func, "readdir");
3924 #if !defined(I_DIRENT) && !defined(VMS)
3925 Direntry_t *readdir (DIR *);
3931 GV *gv = (GV *)POPs;
3932 register Direntry_t *dp;
3933 register IO *io = GvIOn(gv);
3935 if (!io || !IoDIRP(io))
3939 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3943 sv = newSVpvn(dp->d_name, dp->d_namlen);
3945 sv = newSVpv(dp->d_name, 0);
3947 #ifndef INCOMPLETE_TAINTS
3948 if (!(IoFLAGS(io) & IOf_UNTAINT))
3951 XPUSHs(sv_2mortal(sv));
3953 while (gimme == G_ARRAY);
3955 if (!dp && gimme != G_ARRAY)
3962 SETERRNO(EBADF,RMS_ISI);
3963 if (GIMME == G_ARRAY)
3972 #if defined(HAS_TELLDIR) || defined(telldir)
3974 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3975 /* XXX netbsd still seemed to.
3976 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3977 --JHI 1999-Feb-02 */
3978 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3979 long telldir (DIR *);
3982 register IO *io = GvIOn(gv);
3984 if (!io || !IoDIRP(io))
3987 PUSHi( PerlDir_tell(IoDIRP(io)) );
3991 SETERRNO(EBADF,RMS_ISI);
3994 DIE(aTHX_ PL_no_dir_func, "telldir");
4000 #if defined(HAS_SEEKDIR) || defined(seekdir)
4004 register IO *io = GvIOn(gv);
4006 if (!io || !IoDIRP(io))
4009 (void)PerlDir_seek(IoDIRP(io), along);
4014 SETERRNO(EBADF,RMS_ISI);
4017 DIE(aTHX_ PL_no_dir_func, "seekdir");
4023 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4026 register IO *io = GvIOn(gv);
4028 if (!io || !IoDIRP(io))
4031 (void)PerlDir_rewind(IoDIRP(io));
4035 SETERRNO(EBADF,RMS_ISI);
4038 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4044 #if defined(Direntry_t) && defined(HAS_READDIR)
4047 register IO *io = GvIOn(gv);
4049 if (!io || !IoDIRP(io))
4052 #ifdef VOID_CLOSEDIR
4053 PerlDir_close(IoDIRP(io));
4055 if (PerlDir_close(IoDIRP(io)) < 0) {
4056 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4065 SETERRNO(EBADF,RMS_IFI);
4068 DIE(aTHX_ PL_no_dir_func, "closedir");
4072 /* Process control. */
4082 PERL_FLUSHALL_FOR_CHILD;
4083 childpid = PerlProc_fork();
4088 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4089 SvREADONLY_off(GvSV(tmpgv));
4090 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4091 SvREADONLY_on(GvSV(tmpgv));
4093 #ifdef THREADS_HAVE_PIDS
4094 PL_ppid = (IV)getppid();
4096 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4101 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4106 PERL_FLUSHALL_FOR_CHILD;
4107 childpid = PerlProc_fork();
4113 DIE(aTHX_ PL_no_func, "fork");
4120 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4125 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4126 childpid = wait4pid(-1, &argflags, 0);
4128 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4133 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4134 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4135 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4137 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4142 DIE(aTHX_ PL_no_func, "wait");
4148 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4157 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4158 result = wait4pid(pid, &argflags, optype);
4160 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4165 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4166 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4167 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4169 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4174 DIE(aTHX_ PL_no_func, "waitpid");
4180 dSP; dMARK; dORIGMARK; dTARGET;
4187 while (++MARK <= SP) {
4188 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4193 TAINT_PROPER("system");
4195 PERL_FLUSHALL_FOR_CHILD;
4196 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4202 if (PerlProc_pipe(pp) >= 0)
4204 while ((childpid = PerlProc_fork()) == -1) {
4205 if (errno != EAGAIN) {
4210 PerlLIO_close(pp[0]);
4211 PerlLIO_close(pp[1]);
4218 Sigsave_t ihand,qhand; /* place to save signals during system() */
4222 PerlLIO_close(pp[1]);
4224 rsignal_save(SIGINT, SIG_IGN, &ihand);
4225 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4228 result = wait4pid(childpid, &status, 0);
4229 } while (result == -1 && errno == EINTR);
4231 (void)rsignal_restore(SIGINT, &ihand);
4232 (void)rsignal_restore(SIGQUIT, &qhand);
4234 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4235 do_execfree(); /* free any memory child malloced on fork */
4241 while (n < sizeof(int)) {
4242 n1 = PerlLIO_read(pp[0],
4243 (void*)(((char*)&errkid)+n),
4249 PerlLIO_close(pp[0]);
4250 if (n) { /* Error */
4251 if (n != sizeof(int))
4252 DIE(aTHX_ "panic: kid popen errno read");
4253 errno = errkid; /* Propagate errno from kid */
4254 STATUS_CURRENT = -1;
4257 PUSHi(STATUS_CURRENT);
4261 PerlLIO_close(pp[0]);
4262 #if defined(HAS_FCNTL) && defined(F_SETFD)
4263 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4266 if (PL_op->op_flags & OPf_STACKED) {
4267 SV *really = *++MARK;
4268 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4270 else if (SP - MARK != 1)
4271 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4273 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4277 #else /* ! FORK or VMS or OS/2 */
4280 if (PL_op->op_flags & OPf_STACKED) {
4281 SV *really = *++MARK;
4282 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4283 value = (I32)do_aspawn(really, MARK, SP);
4285 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4288 else if (SP - MARK != 1) {
4289 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4290 value = (I32)do_aspawn(Nullsv, MARK, SP);
4292 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4296 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4298 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4300 STATUS_NATIVE_SET(value);
4303 PUSHi(result ? value : STATUS_CURRENT);
4304 #endif /* !FORK or VMS */
4310 dSP; dMARK; dORIGMARK; dTARGET;
4316 while (++MARK <= SP) {
4317 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4322 TAINT_PROPER("exec");
4324 PERL_FLUSHALL_FOR_CHILD;
4325 if (PL_op->op_flags & OPf_STACKED) {
4326 SV *really = *++MARK;
4327 value = (I32)do_aexec(really, MARK, SP);
4329 else if (SP - MARK != 1)
4331 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4335 (void ) do_aspawn(Nullsv, MARK, SP);
4339 value = (I32)do_aexec(Nullsv, MARK, SP);
4344 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4347 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4350 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4363 dSP; dMARK; dTARGET;
4365 value = (I32)apply(PL_op->op_type, MARK, SP);
4370 DIE(aTHX_ PL_no_func, "kill");
4378 # ifdef THREADS_HAVE_PIDS
4381 XPUSHi( getppid() );
4385 DIE(aTHX_ PL_no_func, "getppid");
4401 pgrp = (I32)BSD_GETPGRP(pid);
4403 if (pid != 0 && pid != PerlProc_getpid())
4404 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4410 DIE(aTHX_ PL_no_func, "getpgrp()");
4429 TAINT_PROPER("setpgrp");
4431 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4433 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4434 || (pid != 0 && pid != PerlProc_getpid()))
4436 DIE(aTHX_ "setpgrp can't take arguments");
4438 SETi( setpgrp() >= 0 );
4439 #endif /* USE_BSDPGRP */
4442 DIE(aTHX_ PL_no_func, "setpgrp()");
4448 #ifdef HAS_GETPRIORITY
4452 SETi( getpriority(which, who) );
4455 DIE(aTHX_ PL_no_func, "getpriority()");
4461 #ifdef HAS_SETPRIORITY
4466 TAINT_PROPER("setpriority");
4467 SETi( setpriority(which, who, niceval) >= 0 );
4470 DIE(aTHX_ PL_no_func, "setpriority()");
4480 XPUSHn( time(Null(Time_t*)) );
4482 XPUSHi( time(Null(Time_t*)) );
4493 (void)PerlProc_times(&PL_timesbuf);
4495 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4496 /* struct tms, though same data */
4500 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4501 if (GIMME == G_ARRAY) {
4502 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4503 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4504 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4510 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4512 if (GIMME == G_ARRAY) {
4513 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4514 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4515 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4519 DIE(aTHX_ "times not implemented");
4521 #endif /* HAS_TIMES */
4533 const struct tm *tmbuf;
4534 static const char * const dayname[] =
4535 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4536 static const char * const monname[] =
4537 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4538 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4544 when = (Time_t)SvNVx(POPs);
4546 when = (Time_t)SvIVx(POPs);
4549 if (PL_op->op_type == OP_LOCALTIME)
4550 tmbuf = localtime(&when);
4552 tmbuf = gmtime(&when);
4554 if (GIMME != G_ARRAY) {
4560 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4561 dayname[tmbuf->tm_wday],
4562 monname[tmbuf->tm_mon],
4567 tmbuf->tm_year + 1900);
4568 PUSHs(sv_2mortal(tsv));
4573 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4574 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4575 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4576 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4577 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4578 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4579 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4580 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4581 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4592 anum = alarm((unsigned int)anum);
4599 DIE(aTHX_ PL_no_func, "alarm");
4610 (void)time(&lasttime);
4615 PerlProc_sleep((unsigned int)duration);
4618 XPUSHi(when - lasttime);
4622 /* Shared memory. */
4636 return pp_shmwrite();
4641 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4642 dSP; dMARK; dTARGET;
4643 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4652 /* Message passing. */
4666 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4667 dSP; dMARK; dTARGET;
4668 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4679 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4680 dSP; dMARK; dTARGET;
4681 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4694 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4695 dSP; dMARK; dTARGET;
4696 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4703 DIE(aTHX_ "System V IPC is not implemented on this machine");
4709 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4710 dSP; dMARK; dTARGET;
4711 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4719 PUSHp(zero_but_true, ZBTLEN);
4729 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4730 dSP; dMARK; dTARGET;
4731 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4740 /* Get system info. */
4744 #ifdef HAS_GETHOSTBYNAME
4745 return pp_ghostent();
4747 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4753 #ifdef HAS_GETHOSTBYADDR
4754 return pp_ghostent();
4756 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4762 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4764 I32 which = PL_op->op_type;
4765 register char **elem;
4767 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4768 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4769 struct hostent *gethostbyname(Netdb_name_t);
4770 struct hostent *gethostent(void);
4772 struct hostent *hent;
4777 if (which == OP_GHBYNAME) {
4778 #ifdef HAS_GETHOSTBYNAME
4779 char* name = POPpbytex;
4780 hent = PerlSock_gethostbyname(name);
4782 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4785 else if (which == OP_GHBYADDR) {
4786 #ifdef HAS_GETHOSTBYADDR
4787 int addrtype = POPi;
4790 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4792 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4794 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4798 #ifdef HAS_GETHOSTENT
4799 hent = PerlSock_gethostent();
4801 DIE(aTHX_ PL_no_sock_func, "gethostent");
4804 #ifdef HOST_NOT_FOUND
4806 #ifdef USE_REENTRANT_API
4807 # ifdef USE_GETHOSTENT_ERRNO
4808 h_errno = PL_reentrant_buffer->_gethostent_errno;
4811 STATUS_NATIVE_SET(h_errno);
4815 if (GIMME != G_ARRAY) {
4816 PUSHs(sv = sv_newmortal());
4818 if (which == OP_GHBYNAME) {
4820 sv_setpvn(sv, hent->h_addr, hent->h_length);
4823 sv_setpv(sv, (char*)hent->h_name);
4829 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4830 sv_setpv(sv, (char*)hent->h_name);
4831 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4832 for (elem = hent->h_aliases; elem && *elem; elem++) {
4833 sv_catpv(sv, *elem);
4835 sv_catpvn(sv, " ", 1);
4837 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4838 sv_setiv(sv, (IV)hent->h_addrtype);
4839 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4840 len = hent->h_length;
4841 sv_setiv(sv, (IV)len);
4843 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4844 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4845 sv_setpvn(sv, *elem, len);
4848 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4850 sv_setpvn(sv, hent->h_addr, len);
4855 DIE(aTHX_ PL_no_sock_func, "gethostent");
4861 #ifdef HAS_GETNETBYNAME
4862 return pp_gnetent();
4864 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4870 #ifdef HAS_GETNETBYADDR
4871 return pp_gnetent();
4873 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4879 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4881 I32 which = PL_op->op_type;
4882 register char **elem;
4884 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4885 struct netent *getnetbyaddr(Netdb_net_t, int);
4886 struct netent *getnetbyname(Netdb_name_t);
4887 struct netent *getnetent(void);
4889 struct netent *nent;
4892 if (which == OP_GNBYNAME){
4893 #ifdef HAS_GETNETBYNAME
4894 char *name = POPpbytex;
4895 nent = PerlSock_getnetbyname(name);
4897 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4900 else if (which == OP_GNBYADDR) {
4901 #ifdef HAS_GETNETBYADDR
4902 int addrtype = POPi;
4903 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4904 nent = PerlSock_getnetbyaddr(addr, addrtype);
4906 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4910 #ifdef HAS_GETNETENT
4911 nent = PerlSock_getnetent();
4913 DIE(aTHX_ PL_no_sock_func, "getnetent");
4916 #ifdef HOST_NOT_FOUND
4918 #ifdef USE_REENTRANT_API
4919 # ifdef USE_GETNETENT_ERRNO
4920 h_errno = PL_reentrant_buffer->_getnetent_errno;
4923 STATUS_NATIVE_SET(h_errno);
4928 if (GIMME != G_ARRAY) {
4929 PUSHs(sv = sv_newmortal());
4931 if (which == OP_GNBYNAME)
4932 sv_setiv(sv, (IV)nent->n_net);
4934 sv_setpv(sv, nent->n_name);
4940 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4941 sv_setpv(sv, nent->n_name);
4942 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4943 for (elem = nent->n_aliases; elem && *elem; elem++) {
4944 sv_catpv(sv, *elem);
4946 sv_catpvn(sv, " ", 1);
4948 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4949 sv_setiv(sv, (IV)nent->n_addrtype);
4950 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4951 sv_setiv(sv, (IV)nent->n_net);
4956 DIE(aTHX_ PL_no_sock_func, "getnetent");
4962 #ifdef HAS_GETPROTOBYNAME
4963 return pp_gprotoent();
4965 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4971 #ifdef HAS_GETPROTOBYNUMBER
4972 return pp_gprotoent();
4974 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4980 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4982 I32 which = PL_op->op_type;
4983 register char **elem;
4985 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4986 struct protoent *getprotobyname(Netdb_name_t);
4987 struct protoent *getprotobynumber(int);
4988 struct protoent *getprotoent(void);
4990 struct protoent *pent;
4993 if (which == OP_GPBYNAME) {
4994 #ifdef HAS_GETPROTOBYNAME
4995 char* name = POPpbytex;
4996 pent = PerlSock_getprotobyname(name);
4998 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5001 else if (which == OP_GPBYNUMBER) {
5002 #ifdef HAS_GETPROTOBYNUMBER
5004 pent = PerlSock_getprotobynumber(number);
5006 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5010 #ifdef HAS_GETPROTOENT
5011 pent = PerlSock_getprotoent();
5013 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5017 if (GIMME != G_ARRAY) {
5018 PUSHs(sv = sv_newmortal());
5020 if (which == OP_GPBYNAME)
5021 sv_setiv(sv, (IV)pent->p_proto);
5023 sv_setpv(sv, pent->p_name);
5029 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5030 sv_setpv(sv, pent->p_name);
5031 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5032 for (elem = pent->p_aliases; elem && *elem; elem++) {
5033 sv_catpv(sv, *elem);
5035 sv_catpvn(sv, " ", 1);
5037 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5038 sv_setiv(sv, (IV)pent->p_proto);
5043 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5049 #ifdef HAS_GETSERVBYNAME
5050 return pp_gservent();
5052 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5058 #ifdef HAS_GETSERVBYPORT
5059 return pp_gservent();
5061 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5067 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5069 I32 which = PL_op->op_type;
5070 register char **elem;
5072 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5073 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5074 struct servent *getservbyport(int, Netdb_name_t);
5075 struct servent *getservent(void);
5077 struct servent *sent;
5080 if (which == OP_GSBYNAME) {
5081 #ifdef HAS_GETSERVBYNAME
5082 char *proto = POPpbytex;
5083 char *name = POPpbytex;
5085 if (proto && !*proto)
5088 sent = PerlSock_getservbyname(name, proto);
5090 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5093 else if (which == OP_GSBYPORT) {
5094 #ifdef HAS_GETSERVBYPORT
5095 char *proto = POPpbytex;
5096 unsigned short port = (unsigned short)POPu;
5098 if (proto && !*proto)
5102 port = PerlSock_htons(port);
5104 sent = PerlSock_getservbyport(port, proto);
5106 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5110 #ifdef HAS_GETSERVENT
5111 sent = PerlSock_getservent();
5113 DIE(aTHX_ PL_no_sock_func, "getservent");
5117 if (GIMME != G_ARRAY) {
5118 PUSHs(sv = sv_newmortal());
5120 if (which == OP_GSBYNAME) {
5122 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5124 sv_setiv(sv, (IV)(sent->s_port));
5128 sv_setpv(sv, sent->s_name);
5134 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5135 sv_setpv(sv, sent->s_name);
5136 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5137 for (elem = sent->s_aliases; elem && *elem; elem++) {
5138 sv_catpv(sv, *elem);
5140 sv_catpvn(sv, " ", 1);
5142 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5144 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5146 sv_setiv(sv, (IV)(sent->s_port));
5148 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5149 sv_setpv(sv, sent->s_proto);
5154 DIE(aTHX_ PL_no_sock_func, "getservent");
5160 #ifdef HAS_SETHOSTENT
5162 PerlSock_sethostent(TOPi);
5165 DIE(aTHX_ PL_no_sock_func, "sethostent");
5171 #ifdef HAS_SETNETENT
5173 PerlSock_setnetent(TOPi);
5176 DIE(aTHX_ PL_no_sock_func, "setnetent");
5182 #ifdef HAS_SETPROTOENT
5184 PerlSock_setprotoent(TOPi);
5187 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5193 #ifdef HAS_SETSERVENT
5195 PerlSock_setservent(TOPi);
5198 DIE(aTHX_ PL_no_sock_func, "setservent");
5204 #ifdef HAS_ENDHOSTENT
5206 PerlSock_endhostent();
5210 DIE(aTHX_ PL_no_sock_func, "endhostent");
5216 #ifdef HAS_ENDNETENT
5218 PerlSock_endnetent();
5222 DIE(aTHX_ PL_no_sock_func, "endnetent");
5228 #ifdef HAS_ENDPROTOENT
5230 PerlSock_endprotoent();
5234 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5240 #ifdef HAS_ENDSERVENT
5242 PerlSock_endservent();
5246 DIE(aTHX_ PL_no_sock_func, "endservent");
5255 DIE(aTHX_ PL_no_func, "getpwnam");
5264 DIE(aTHX_ PL_no_func, "getpwuid");
5272 I32 which = PL_op->op_type;
5275 struct passwd *pwent = NULL;
5277 * We currently support only the SysV getsp* shadow password interface.
5278 * The interface is declared in <shadow.h> and often one needs to link
5279 * with -lsecurity or some such.
5280 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5283 * AIX getpwnam() is clever enough to return the encrypted password
5284 * only if the caller (euid?) is root.
5286 * There are at least three other shadow password APIs. Many platforms
5287 * seem to contain more than one interface for accessing the shadow
5288 * password databases, possibly for compatibility reasons.
5289 * The getsp*() is by far he simplest one, the other two interfaces
5290 * are much more complicated, but also very similar to each other.
5295 * struct pr_passwd *getprpw*();
5296 * The password is in
5297 * char getprpw*(...).ufld.fd_encrypt[]
5298 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5303 * struct es_passwd *getespw*();
5304 * The password is in
5305 * char *(getespw*(...).ufld.fd_encrypt)
5306 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5309 * struct userpw *getuserpw();
5310 * The password is in
5311 * char *(getuserpw(...)).spw_upw_passwd
5312 * (but the de facto standard getpwnam() should work okay)
5314 * Mention I_PROT here so that Configure probes for it.
5316 * In HP-UX for getprpw*() the manual page claims that one should include
5317 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5318 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5319 * and pp_sys.c already includes <shadow.h> if there is such.
5321 * Note that <sys/security.h> is already probed for, but currently
5322 * it is only included in special cases.
5324 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5325 * be preferred interface, even though also the getprpw*() interface
5326 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5327 * One also needs to call set_auth_parameters() in main() before
5328 * doing anything else, whether one is using getespw*() or getprpw*().
5330 * Note that accessing the shadow databases can be magnitudes
5331 * slower than accessing the standard databases.
5336 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5337 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5338 * the pw_comment is left uninitialized. */
5339 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5345 char* name = POPpbytex;
5346 pwent = getpwnam(name);
5352 pwent = getpwuid(uid);
5356 # ifdef HAS_GETPWENT
5358 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5359 if (pwent) pwent = getpwnam(pwent->pw_name);
5362 DIE(aTHX_ PL_no_func, "getpwent");
5368 if (GIMME != G_ARRAY) {
5369 PUSHs(sv = sv_newmortal());
5371 if (which == OP_GPWNAM)
5372 # if Uid_t_sign <= 0
5373 sv_setiv(sv, (IV)pwent->pw_uid);
5375 sv_setuv(sv, (UV)pwent->pw_uid);
5378 sv_setpv(sv, pwent->pw_name);
5384 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5385 sv_setpv(sv, pwent->pw_name);
5387 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5389 /* If we have getspnam(), we try to dig up the shadow
5390 * password. If we are underprivileged, the shadow
5391 * interface will set the errno to EACCES or similar,
5392 * and return a null pointer. If this happens, we will
5393 * use the dummy password (usually "*" or "x") from the
5394 * standard password database.
5396 * In theory we could skip the shadow call completely
5397 * if euid != 0 but in practice we cannot know which
5398 * security measures are guarding the shadow databases
5399 * on a random platform.
5401 * Resist the urge to use additional shadow interfaces.
5402 * Divert the urge to writing an extension instead.
5405 /* Some AIX setups falsely(?) detect some getspnam(), which
5406 * has a different API than the Solaris/IRIX one. */
5407 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5409 struct spwd *spwent;
5410 int saverrno; /* Save and restore errno so that
5411 * underprivileged attempts seem
5412 * to have never made the unsccessful
5413 * attempt to retrieve the shadow password. */
5416 spwent = getspnam(pwent->pw_name);
5418 if (spwent && spwent->sp_pwdp)
5419 sv_setpv(sv, spwent->sp_pwdp);
5423 if (!SvPOK(sv)) /* Use the standard password, then. */
5424 sv_setpv(sv, pwent->pw_passwd);
5427 # ifndef INCOMPLETE_TAINTS
5428 /* passwd is tainted because user himself can diddle with it.
5429 * admittedly not much and in a very limited way, but nevertheless. */
5433 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5434 # if Uid_t_sign <= 0
5435 sv_setiv(sv, (IV)pwent->pw_uid);
5437 sv_setuv(sv, (UV)pwent->pw_uid);
5440 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5441 # if Uid_t_sign <= 0
5442 sv_setiv(sv, (IV)pwent->pw_gid);
5444 sv_setuv(sv, (UV)pwent->pw_gid);
5446 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5447 * because of the poor interface of the Perl getpw*(),
5448 * not because there's some standard/convention saying so.
5449 * A better interface would have been to return a hash,
5450 * but we are accursed by our history, alas. --jhi. */
5451 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5453 sv_setiv(sv, (IV)pwent->pw_change);
5456 sv_setiv(sv, (IV)pwent->pw_quota);
5459 sv_setpv(sv, pwent->pw_age);
5464 /* pw_class and pw_comment are mutually exclusive--.
5465 * see the above note for pw_change, pw_quota, and pw_age. */
5466 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5468 sv_setpv(sv, pwent->pw_class);
5471 sv_setpv(sv, pwent->pw_comment);
5475 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5477 sv_setpv(sv, pwent->pw_gecos);
5479 # ifndef INCOMPLETE_TAINTS
5480 /* pw_gecos is tainted because user himself can diddle with it. */
5484 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5485 sv_setpv(sv, pwent->pw_dir);
5487 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5488 sv_setpv(sv, pwent->pw_shell);
5489 # ifndef INCOMPLETE_TAINTS
5490 /* pw_shell is tainted because user himself can diddle with it. */
5495 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5496 sv_setiv(sv, (IV)pwent->pw_expire);
5501 DIE(aTHX_ PL_no_func, "getpwent");
5507 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5512 DIE(aTHX_ PL_no_func, "setpwent");
5518 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5523 DIE(aTHX_ PL_no_func, "endpwent");
5532 DIE(aTHX_ PL_no_func, "getgrnam");
5541 DIE(aTHX_ PL_no_func, "getgrgid");
5549 I32 which = PL_op->op_type;
5550 register char **elem;
5552 struct group *grent;
5555 if (which == OP_GGRNAM) {
5556 char* name = POPpbytex;
5557 grent = (struct group *)getgrnam(name);
5559 else if (which == OP_GGRGID) {
5561 grent = (struct group *)getgrgid(gid);
5565 grent = (struct group *)getgrent();
5567 DIE(aTHX_ PL_no_func, "getgrent");
5571 if (GIMME != G_ARRAY) {
5572 PUSHs(sv = sv_newmortal());
5574 if (which == OP_GGRNAM)
5575 sv_setiv(sv, (IV)grent->gr_gid);
5577 sv_setpv(sv, grent->gr_name);
5583 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5584 sv_setpv(sv, grent->gr_name);
5586 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5588 sv_setpv(sv, grent->gr_passwd);
5591 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5592 sv_setiv(sv, (IV)grent->gr_gid);
5594 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5595 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5596 /* In UNICOS/mk (_CRAYMPP) the multithreading
5597 * versions (getgrnam_r, getgrgid_r)
5598 * seem to return an illegal pointer
5599 * as the group members list, gr_mem.
5600 * getgrent() doesn't even have a _r version
5601 * but the gr_mem is poisonous anyway.
5602 * So yes, you cannot get the list of group
5603 * members if building multithreaded in UNICOS/mk. */
5604 for (elem = grent->gr_mem; elem && *elem; elem++) {
5605 sv_catpv(sv, *elem);
5607 sv_catpvn(sv, " ", 1);
5614 DIE(aTHX_ PL_no_func, "getgrent");
5620 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5625 DIE(aTHX_ PL_no_func, "setgrent");
5631 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5636 DIE(aTHX_ PL_no_func, "endgrent");
5646 if (!(tmps = PerlProc_getlogin()))
5648 PUSHp(tmps, strlen(tmps));
5651 DIE(aTHX_ PL_no_func, "getlogin");
5655 /* Miscellaneous. */
5660 dSP; dMARK; dORIGMARK; dTARGET;
5661 register I32 items = SP - MARK;
5662 unsigned long a[20];
5668 while (++MARK <= SP) {
5669 if (SvTAINTED(*MARK)) {
5675 TAINT_PROPER("syscall");
5678 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5679 * or where sizeof(long) != sizeof(char*). But such machines will
5680 * not likely have syscall implemented either, so who cares?
5682 while (++MARK <= SP) {
5683 if (SvNIOK(*MARK) || !i)
5684 a[i++] = SvIV(*MARK);
5685 else if (*MARK == &PL_sv_undef)
5688 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5694 DIE(aTHX_ "Too many args to syscall");
5696 DIE(aTHX_ "Too few args to syscall");
5698 retval = syscall(a[0]);
5701 retval = syscall(a[0],a[1]);
5704 retval = syscall(a[0],a[1],a[2]);
5707 retval = syscall(a[0],a[1],a[2],a[3]);
5710 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5713 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5716 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5719 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5723 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5726 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5729 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5733 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5737 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5741 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5742 a[10],a[11],a[12],a[13]);
5744 #endif /* atarist */
5750 DIE(aTHX_ PL_no_func, "syscall");
5754 #ifdef FCNTL_EMULATE_FLOCK
5756 /* XXX Emulate flock() with fcntl().
5757 What's really needed is a good file locking module.
5761 fcntl_emulate_flock(int fd, int operation)
5765 switch (operation & ~LOCK_NB) {
5767 flock.l_type = F_RDLCK;
5770 flock.l_type = F_WRLCK;
5773 flock.l_type = F_UNLCK;
5779 flock.l_whence = SEEK_SET;
5780 flock.l_start = flock.l_len = (Off_t)0;
5782 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5785 #endif /* FCNTL_EMULATE_FLOCK */
5787 #ifdef LOCKF_EMULATE_FLOCK
5789 /* XXX Emulate flock() with lockf(). This is just to increase
5790 portability of scripts. The calls are not completely
5791 interchangeable. What's really needed is a good file
5795 /* The lockf() constants might have been defined in <unistd.h>.
5796 Unfortunately, <unistd.h> causes troubles on some mixed
5797 (BSD/POSIX) systems, such as SunOS 4.1.3.
5799 Further, the lockf() constants aren't POSIX, so they might not be
5800 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5801 just stick in the SVID values and be done with it. Sigh.
5805 # define F_ULOCK 0 /* Unlock a previously locked region */
5808 # define F_LOCK 1 /* Lock a region for exclusive use */
5811 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5814 # define F_TEST 3 /* Test a region for other processes locks */
5818 lockf_emulate_flock(int fd, int operation)
5824 /* flock locks entire file so for lockf we need to do the same */
5826 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5827 if (pos > 0) /* is seekable and needs to be repositioned */
5828 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5829 pos = -1; /* seek failed, so don't seek back afterwards */
5832 switch (operation) {
5834 /* LOCK_SH - get a shared lock */
5836 /* LOCK_EX - get an exclusive lock */
5838 i = lockf (fd, F_LOCK, 0);
5841 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5842 case LOCK_SH|LOCK_NB:
5843 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5844 case LOCK_EX|LOCK_NB:
5845 i = lockf (fd, F_TLOCK, 0);
5847 if ((errno == EAGAIN) || (errno == EACCES))
5848 errno = EWOULDBLOCK;
5851 /* LOCK_UN - unlock (non-blocking is a no-op) */
5853 case LOCK_UN|LOCK_NB:
5854 i = lockf (fd, F_ULOCK, 0);
5857 /* Default - can't decipher operation */
5864 if (pos > 0) /* need to restore position of the handle */
5865 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5870 #endif /* LOCKF_EMULATE_FLOCK */
5874 * c-indentation-style: bsd
5876 * indent-tabs-mode: t
5879 * vim: shiftwidth=4: