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 */
121 # define my_chsize PerlLIO_chsize
124 # define my_chsize PerlLIO_chsize
126 I32 my_chsize(int fd, Off_t length);
132 #else /* no flock() */
134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
142 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
143 # define FLOCK fcntl_emulate_flock
144 # define FCNTL_EMULATE_FLOCK
145 # else /* no flock() or fcntl(F_SETLK,...) */
147 # define FLOCK lockf_emulate_flock
148 # define LOCKF_EMULATE_FLOCK
150 # endif /* no flock() or fcntl(F_SETLK,...) */
153 static int FLOCK (int, int);
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
171 # endif /* emulating flock() */
173 #endif /* no flock() */
176 static const char zero_but_true[ZBTLEN + 1] = "0 but true";
178 #if defined(I_SYS_ACCESS) && !defined(R_OK)
179 # include <sys/access.h>
182 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183 # define FD_CLOEXEC 1 /* NeXT needs this */
189 /* Missing protos on LynxOS */
190 void sethostent(int);
191 void endhostent(void);
193 void endnetent(void);
194 void setprotoent(int);
195 void endprotoent(void);
196 void setservent(int);
197 void endservent(void);
200 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
201 #undef PERL_EFF_ACCESS_W_OK
202 #undef PERL_EFF_ACCESS_X_OK
204 /* F_OK unused: if stat() cannot find it... */
206 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
207 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
208 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
209 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
210 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
213 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
214 # ifdef I_SYS_SECURITY
215 # include <sys/security.h>
219 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
220 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
221 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
224 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
225 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
226 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
230 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
232 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
233 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
234 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
237 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
238 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
239 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
242 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
244 Uid_t ruid = getuid();
245 Uid_t euid = geteuid();
246 Gid_t rgid = getgid();
247 Gid_t egid = getegid();
251 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
252 Perl_croak(aTHX_ "switching effective uid is not implemented");
255 if (setreuid(euid, ruid))
258 if (setresuid(euid, ruid, (Uid_t)-1))
261 Perl_croak(aTHX_ "entering effective uid failed");
264 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
265 Perl_croak(aTHX_ "switching effective gid is not implemented");
268 if (setregid(egid, rgid))
271 if (setresgid(egid, rgid, (Gid_t)-1))
274 Perl_croak(aTHX_ "entering effective gid failed");
277 res = access(path, mode);
280 if (setreuid(ruid, euid))
283 if (setresuid(ruid, euid, (Uid_t)-1))
286 Perl_croak(aTHX_ "leaving effective uid failed");
289 if (setregid(rgid, egid))
292 if (setresgid(rgid, egid, (Gid_t)-1))
295 Perl_croak(aTHX_ "leaving effective gid failed");
300 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
301 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
302 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
305 #if !defined(PERL_EFF_ACCESS_R_OK)
306 /* With it or without it: anyway you get a warning: either that
307 it is unused, or it is declared static and never defined.
310 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
314 Perl_croak(aTHX_ "switching effective uid is not implemented");
325 const char *tmps = POPpconstx;
326 const I32 gimme = GIMME_V;
327 const char *mode = "r";
330 if (PL_op->op_private & OPpOPEN_IN_RAW)
332 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
334 fp = PerlProc_popen((char*)tmps, (char *)mode);
336 const char *type = NULL;
337 if (PL_curcop->cop_io) {
338 type = SvPV_nolen_const(PL_curcop->cop_io);
341 PerlIO_apply_layers(aTHX_ fp,mode,type);
343 if (gimme == G_VOID) {
345 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
349 else if (gimme == G_SCALAR) {
352 PL_rs = &PL_sv_undef;
353 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
354 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
366 if (sv_gets(sv, fp, 0) == Nullch) {
370 XPUSHs(sv_2mortal(sv));
371 if (SvLEN(sv) - SvCUR(sv) > 20) {
372 SvPV_shrink_to_cur(sv);
377 STATUS_NATIVE_SET(PerlProc_pclose(fp));
378 TAINT; /* "I believe that this is not gratuitous!" */
381 STATUS_NATIVE_SET(-1);
382 if (gimme == G_SCALAR)
393 tryAMAGICunTARGET(iter, -1);
395 /* Note that we only ever get here if File::Glob fails to load
396 * without at the same time croaking, for some reason, or if
397 * perl was built with PERL_EXTERNAL_GLOB */
404 * The external globbing program may use things we can't control,
405 * so for security reasons we must assume the worst.
408 taint_proper(PL_no_security, "glob");
412 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
413 PL_last_in_gv = (GV*)*PL_stack_sp--;
415 SAVESPTR(PL_rs); /* This is not permanent, either. */
416 PL_rs = sv_2mortal(newSVpvn("\000", 1));
419 *SvPVX(PL_rs) = '\n';
423 result = do_readline();
430 PL_last_in_gv = cGVOP_gv;
431 return do_readline();
440 if (SP - MARK != 1) {
442 do_join(TARG, &PL_sv_no, MARK, SP);
449 tmps = SvPV_const(tmpsv, len);
450 if ((!tmps || !len) && PL_errgv) {
452 SvUPGRADE(error, SVt_PV);
453 if (SvPOK(error) && SvCUR(error))
454 sv_catpv(error, "\t...caught");
456 tmps = SvPV_const(tmpsv, len);
459 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
461 Perl_warn(aTHX_ "%"SVf, tmpsv);
473 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
475 if (SP - MARK != 1) {
477 do_join(TARG, &PL_sv_no, MARK, SP);
479 tmps = SvPV_const(tmpsv, len);
485 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
489 SvUPGRADE(error, SVt_PV);
490 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
492 SvSetSV(error,tmpsv);
493 else if (sv_isobject(error)) {
494 HV *stash = SvSTASH(SvRV(error));
495 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
497 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
498 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
505 call_sv((SV*)GvCV(gv),
506 G_SCALAR|G_EVAL|G_KEEPERR);
507 sv_setsv(error,*PL_stack_sp--);
513 if (SvPOK(error) && SvCUR(error))
514 sv_catpv(error, "\t...propagated");
516 tmps = SvPV_const(tmpsv, len);
520 tmpsv = sv_2mortal(newSVpvn("Died", 4));
522 DIE(aTHX_ "%"SVf, tmpsv);
542 DIE(aTHX_ PL_no_usym, "filehandle");
543 if ((io = GvIOp(gv)))
544 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
546 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
547 /* Method's args are same as ours ... */
548 /* ... except handle is replaced by the object */
549 *MARK-- = SvTIED_obj((SV*)io, mg);
553 call_method("OPEN", G_SCALAR);
566 tmps = SvPV_const(sv, len);
567 ok = do_openn(gv, (char *)tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
570 PUSHi( (I32)PL_forkprocess );
571 else if (PL_forkprocess == 0) /* we are a new child */
590 if (gv && (io = GvIO(gv))
591 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
594 XPUSHs(SvTIED_obj((SV*)io, mg));
597 call_method("CLOSE", G_SCALAR);
603 PUSHs(boolSV(do_close(gv, TRUE)));
623 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
624 DIE(aTHX_ PL_no_usym, "filehandle");
629 do_close(rgv, FALSE);
631 do_close(wgv, FALSE);
633 if (PerlProc_pipe(fd) < 0)
636 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
637 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
638 IoOFP(rstio) = IoIFP(rstio);
639 IoIFP(wstio) = IoOFP(wstio);
640 IoTYPE(rstio) = IoTYPE_RDONLY;
641 IoTYPE(wstio) = IoTYPE_WRONLY;
643 if (!IoIFP(rstio) || !IoOFP(wstio)) {
644 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
645 else PerlLIO_close(fd[0]);
646 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
647 else PerlLIO_close(fd[1]);
650 #if defined(HAS_FCNTL) && defined(F_SETFD)
651 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
652 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
659 DIE(aTHX_ PL_no_func, "pipe");
675 if (gv && (io = GvIO(gv))
676 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
679 XPUSHs(SvTIED_obj((SV*)io, mg));
682 call_method("FILENO", G_SCALAR);
688 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
689 /* Can't do this because people seem to do things like
690 defined(fileno($foo)) to check whether $foo is a valid fh.
691 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
692 report_evil_fh(gv, io, PL_op->op_type);
697 PUSHi(PerlIO_fileno(fp));
709 anum = PerlLIO_umask(0);
710 (void)PerlLIO_umask(anum);
713 anum = PerlLIO_umask(POPi);
714 TAINT_PROPER("umask");
717 /* Only DIE if trying to restrict permissions on "user" (self).
718 * Otherwise it's harmless and more useful to just return undef
719 * since 'group' and 'other' concepts probably don't exist here. */
720 if (MAXARG >= 1 && (POPi & 0700))
721 DIE(aTHX_ "umask not implemented");
722 XPUSHs(&PL_sv_undef);
744 if (gv && (io = GvIO(gv))
745 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
748 XPUSHs(SvTIED_obj((SV*)io, mg));
753 call_method("BINMODE", G_SCALAR);
760 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
761 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
762 report_evil_fh(gv, io, PL_op->op_type);
763 SETERRNO(EBADF,RMS_IFI);
768 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
769 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
770 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
771 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
772 mode_from_discipline(discp),
773 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
794 const I32 markoff = MARK - PL_stack_base;
795 const char *methname;
796 int how = PERL_MAGIC_tied;
800 switch(SvTYPE(varsv)) {
802 methname = "TIEHASH";
803 HvEITER_set((HV *)varsv, 0);
806 methname = "TIEARRAY";
809 #ifdef GV_UNIQUE_CHECK
810 if (GvUNIQUE((GV*)varsv)) {
811 Perl_croak(aTHX_ "Attempt to tie unique GV");
814 methname = "TIEHANDLE";
815 how = PERL_MAGIC_tiedscalar;
816 /* For tied filehandles, we apply tiedscalar magic to the IO
817 slot of the GP rather than the GV itself. AMS 20010812 */
819 GvIOp(varsv) = newIO();
820 varsv = (SV *)GvIOp(varsv);
823 methname = "TIESCALAR";
824 how = PERL_MAGIC_tiedscalar;
828 if (sv_isobject(*MARK)) {
830 PUSHSTACKi(PERLSI_MAGIC);
832 EXTEND(SP,(I32)items);
836 call_method(methname, G_SCALAR);
839 /* Not clear why we don't call call_method here too.
840 * perhaps to get different error message ?
842 stash = gv_stashsv(*MARK, FALSE);
843 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
844 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
848 PUSHSTACKi(PERLSI_MAGIC);
850 EXTEND(SP,(I32)items);
854 call_sv((SV*)GvCV(gv), G_SCALAR);
860 if (sv_isobject(sv)) {
861 sv_unmagic(varsv, how);
862 /* Croak if a self-tie on an aggregate is attempted. */
863 if (varsv == SvRV(sv) &&
864 (SvTYPE(varsv) == SVt_PVAV ||
865 SvTYPE(varsv) == SVt_PVHV))
867 "Self-ties of arrays and hashes are not supported");
868 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
871 SP = PL_stack_base + markoff;
881 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
882 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
884 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
887 if ((mg = SvTIED_mg(sv, how))) {
888 SV *obj = SvRV(SvTIED_obj(sv, mg));
892 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
893 isGV(gv) && (cv = GvCV(gv))) {
895 XPUSHs(SvTIED_obj((SV*)gv, mg));
896 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
899 call_sv((SV *)cv, G_VOID);
903 else if (ckWARN(WARN_UNTIE)) {
904 if (mg && SvREFCNT(obj) > 1)
905 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
906 "untie attempted while %"UVuf" inner references still exist",
907 (UV)SvREFCNT(obj) - 1 ) ;
911 sv_unmagic(sv, how) ;
920 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
921 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
923 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
926 if ((mg = SvTIED_mg(sv, how))) {
927 SV *osv = SvTIED_obj(sv, mg);
928 if (osv == mg->mg_obj)
929 osv = sv_mortalcopy(osv);
947 sv = sv_mortalcopy(&PL_sv_no);
948 sv_setpv(sv, "AnyDBM_File");
949 stash = gv_stashsv(sv, FALSE);
950 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
952 require_pv("AnyDBM_File.pm");
954 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
955 DIE(aTHX_ "No dbm on this machine");
965 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
967 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
970 call_sv((SV*)GvCV(gv), G_SCALAR);
973 if (!sv_isobject(TOPs)) {
978 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
981 call_sv((SV*)GvCV(gv), G_SCALAR);
985 if (sv_isobject(TOPs)) {
986 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
987 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1009 struct timeval timebuf;
1010 struct timeval *tbuf = &timebuf;
1014 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1019 # if BYTEORDER & 0xf0000
1020 # define ORDERBYTE (0x88888888 - BYTEORDER)
1022 # define ORDERBYTE (0x4444 - BYTEORDER)
1028 for (i = 1; i <= 3; i++) {
1036 /* little endians can use vecs directly */
1037 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1044 masksize = NFDBITS / NBBY;
1046 masksize = sizeof(long); /* documented int, everyone seems to use long */
1048 Zero(&fd_sets[0], 4, char*);
1051 # if SELECT_MIN_BITS == 1
1052 growsize = sizeof(fd_set);
1054 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1055 # undef SELECT_MIN_BITS
1056 # define SELECT_MIN_BITS __FD_SETSIZE
1058 /* If SELECT_MIN_BITS is greater than one we most probably will want
1059 * to align the sizes with SELECT_MIN_BITS/8 because for example
1060 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1061 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1062 * on (sets/tests/clears bits) is 32 bits. */
1063 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1071 timebuf.tv_sec = (long)value;
1072 value -= (NV)timebuf.tv_sec;
1073 timebuf.tv_usec = (long)(value * 1000000.0);
1076 tbuf = Null(struct timeval*);
1078 for (i = 1; i <= 3; i++) {
1084 else if (!SvPOK(sv))
1085 SvPV_force(sv,n_a); /* force string conversion */
1088 Sv_Grow(sv, growsize);
1092 while (++j <= growsize) {
1096 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1098 New(403, fd_sets[i], growsize, char);
1099 for (offset = 0; offset < growsize; offset += masksize) {
1100 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1101 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1104 fd_sets[i] = SvPVX(sv);
1108 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1109 /* Can't make just the (void*) conditional because that would be
1110 * cpp #if within cpp macro, and not all compilers like that. */
1111 nfound = PerlSock_select(
1113 (Select_fd_set_t) fd_sets[1],
1114 (Select_fd_set_t) fd_sets[2],
1115 (Select_fd_set_t) fd_sets[3],
1116 (void*) tbuf); /* Workaround for compiler bug. */
1118 nfound = PerlSock_select(
1120 (Select_fd_set_t) fd_sets[1],
1121 (Select_fd_set_t) fd_sets[2],
1122 (Select_fd_set_t) fd_sets[3],
1125 for (i = 1; i <= 3; i++) {
1128 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1130 for (offset = 0; offset < growsize; offset += masksize) {
1131 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1132 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1134 Safefree(fd_sets[i]);
1141 PUSHs(&PL_sv_undef);
1144 if (GIMME == G_ARRAY && tbuf) {
1145 value = (NV)(timebuf.tv_sec) +
1146 (NV)(timebuf.tv_usec) / 1000000.0;
1147 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1148 sv_setnv(sv, value);
1152 DIE(aTHX_ "select not implemented");
1157 Perl_setdefout(pTHX_ GV *gv)
1160 (void)SvREFCNT_inc(gv);
1162 SvREFCNT_dec(PL_defoutgv);
1172 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1174 egv = GvEGV(PL_defoutgv);
1179 XPUSHs(&PL_sv_undef);
1181 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1182 if (gvp && *gvp == egv) {
1183 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1187 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1192 if (!GvIO(newdefout))
1193 gv_IOadd(newdefout);
1194 setdefout(newdefout);
1212 if (gv && (io = GvIO(gv))
1213 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1215 const I32 gimme = GIMME_V;
1217 XPUSHs(SvTIED_obj((SV*)io, mg));
1220 call_method("GETC", gimme);
1223 if (gimme == G_SCALAR)
1224 SvSetMagicSV_nosteal(TARG, TOPs);
1227 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1228 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1229 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1230 report_evil_fh(gv, io, PL_op->op_type);
1231 SETERRNO(EBADF,RMS_IFI);
1235 sv_setpvn(TARG, " ", 1);
1236 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1237 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1238 /* Find out how many bytes the char needs */
1239 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1242 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1243 SvCUR_set(TARG,1+len);
1253 return pp_sysread();
1257 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1260 register PERL_CONTEXT *cx;
1261 const I32 gimme = GIMME_V;
1266 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1268 cx->blk_sub.retop = retop;
1269 PAD_SET_CUR(CvPADLIST(cv), 1);
1271 setdefout(gv); /* locally select filehandle so $% et al work */
1303 SV * const tmpsv = sv_newmortal();
1305 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1306 name = SvPV_nolen_const(tmpsv);
1308 DIE(aTHX_ "Undefined format \"%s\" called", name);
1310 DIE(aTHX_ "Not a format reference");
1313 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1315 IoFLAGS(io) &= ~IOf_DIDTOP;
1316 return doform(cv,gv,PL_op->op_next);
1322 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1323 register IO *io = GvIOp(gv);
1324 PerlIO *ofp = IoOFP(io);
1328 register PERL_CONTEXT *cx;
1330 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1331 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1334 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1335 PL_formtarget != PL_toptarget)
1339 if (!IoTOP_GV(io)) {
1343 if (!IoTOP_NAME(io)) {
1344 if (!IoFMT_NAME(io))
1345 IoFMT_NAME(io) = savepv(GvNAME(gv));
1346 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1347 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1348 if ((topgv && GvFORM(topgv)) ||
1349 !gv_fetchpv("top",FALSE,SVt_PVFM))
1350 IoTOP_NAME(io) = savesvpv(topname);
1352 IoTOP_NAME(io) = savepvn("top", 3);
1354 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1355 if (!topgv || !GvFORM(topgv)) {
1356 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1359 IoTOP_GV(io) = topgv;
1361 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1362 I32 lines = IoLINES_LEFT(io);
1363 const char *s = SvPVX_const(PL_formtarget);
1364 if (lines <= 0) /* Yow, header didn't even fit!!! */
1366 while (lines-- > 0) {
1367 s = strchr(s, '\n');
1373 const STRLEN save = SvCUR(PL_formtarget);
1374 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1375 do_print(PL_formtarget, ofp);
1376 SvCUR_set(PL_formtarget, save);
1377 sv_chop(PL_formtarget, s);
1378 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1381 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1382 do_print(PL_formfeed, ofp);
1383 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1385 PL_formtarget = PL_toptarget;
1386 IoFLAGS(io) |= IOf_DIDTOP;
1389 DIE(aTHX_ "bad top format reference");
1392 SV * const sv = sv_newmortal();
1394 gv_efullname4(sv, fgv, Nullch, FALSE);
1395 name = SvPV_nolen_const(sv);
1397 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1401 DIE(aTHX_ "Undefined top format called");
1404 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1405 return doform(cv,gv,PL_op);
1409 POPBLOCK(cx,PL_curpm);
1415 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1417 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1418 else if (ckWARN(WARN_CLOSED))
1419 report_evil_fh(gv, io, PL_op->op_type);
1424 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1425 if (ckWARN(WARN_IO))
1426 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1428 if (!do_print(PL_formtarget, fp))
1431 FmLINES(PL_formtarget) = 0;
1432 SvCUR_set(PL_formtarget, 0);
1433 *SvEND(PL_formtarget) = '\0';
1434 if (IoFLAGS(io) & IOf_FLUSH)
1435 (void)PerlIO_flush(fp);
1440 PL_formtarget = PL_bodytarget;
1442 return cx->blk_sub.retop;
1447 dVAR; dSP; dMARK; dORIGMARK;
1454 if (PL_op->op_flags & OPf_STACKED)
1459 if (gv && (io = GvIO(gv))
1460 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1462 if (MARK == ORIGMARK) {
1465 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1469 *MARK = SvTIED_obj((SV*)io, mg);
1472 call_method("PRINTF", G_SCALAR);
1475 MARK = ORIGMARK + 1;
1482 if (!(io = GvIO(gv))) {
1483 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1484 report_evil_fh(gv, io, PL_op->op_type);
1485 SETERRNO(EBADF,RMS_IFI);
1488 else if (!(fp = IoOFP(io))) {
1489 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1491 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1492 else if (ckWARN(WARN_CLOSED))
1493 report_evil_fh(gv, io, PL_op->op_type);
1495 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1499 do_sprintf(sv, SP - MARK, MARK + 1);
1500 if (!do_print(sv, fp))
1503 if (IoFLAGS(io) & IOf_FLUSH)
1504 if (PerlIO_flush(fp) == EOF)
1515 PUSHs(&PL_sv_undef);
1526 const int perm = (MAXARG > 3) ? POPi : 0666;
1527 const int mode = POPi;
1532 /* Need TIEHANDLE method ? */
1534 tmps = SvPV_const(sv, len);
1535 /* FIXME? do_open should do const */
1536 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
1537 IoLINES(GvIOp(gv)) = 0;
1541 PUSHs(&PL_sv_undef);
1548 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1555 Sock_size_t bufsize;
1564 bool charstart = FALSE;
1565 STRLEN charskip = 0;
1569 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1570 && gv && (io = GvIO(gv))
1571 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1576 *MARK = SvTIED_obj((SV*)io, mg);
1578 call_method("READ", G_SCALAR);
1591 sv_setpvn(bufsv, "", 0);
1592 length = SvIVx(*++MARK);
1595 offset = SvIVx(*++MARK);
1599 if (!io || !IoIFP(io)) {
1600 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1601 report_evil_fh(gv, io, PL_op->op_type);
1602 SETERRNO(EBADF,RMS_IFI);
1605 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1606 buffer = SvPVutf8_force(bufsv, blen);
1607 /* UTF-8 may not have been set if they are all low bytes */
1612 buffer = SvPV_force(bufsv, blen);
1613 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1616 DIE(aTHX_ "Negative length");
1624 if (PL_op->op_type == OP_RECV) {
1625 char namebuf[MAXPATHLEN];
1626 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1627 bufsize = sizeof (struct sockaddr_in);
1629 bufsize = sizeof namebuf;
1631 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1635 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1636 /* 'offset' means 'flags' here */
1637 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1638 (struct sockaddr *)namebuf, &bufsize);
1642 /* Bogus return without padding */
1643 bufsize = sizeof (struct sockaddr_in);
1645 SvCUR_set(bufsv, count);
1646 *SvEND(bufsv) = '\0';
1647 (void)SvPOK_only(bufsv);
1651 /* This should not be marked tainted if the fp is marked clean */
1652 if (!(IoFLAGS(io) & IOf_UNTAINT))
1653 SvTAINTED_on(bufsv);
1655 sv_setpvn(TARG, namebuf, bufsize);
1660 if (PL_op->op_type == OP_RECV)
1661 DIE(aTHX_ PL_no_sock_func, "recv");
1663 if (DO_UTF8(bufsv)) {
1664 /* offset adjust in characters not bytes */
1665 blen = sv_len_utf8(bufsv);
1668 if (-offset > (int)blen)
1669 DIE(aTHX_ "Offset outside string");
1672 if (DO_UTF8(bufsv)) {
1673 /* convert offset-as-chars to offset-as-bytes */
1674 if (offset >= (int)blen)
1675 offset += SvCUR(bufsv) - blen;
1677 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1680 bufsize = SvCUR(bufsv);
1681 /* Allocating length + offset + 1 isn't perfect in the case of reading
1682 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1684 (should be 2 * length + offset + 1, or possibly something longer if
1685 PL_encoding is true) */
1686 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1687 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1688 Zero(buffer+bufsize, offset-bufsize, char);
1690 buffer = buffer + offset;
1692 read_target = bufsv;
1694 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1695 concatenate it to the current buffer. */
1697 /* Truncate the existing buffer to the start of where we will be
1699 SvCUR_set(bufsv, offset);
1701 read_target = sv_newmortal();
1702 SvUPGRADE(read_target, SVt_PV);
1703 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1706 if (PL_op->op_type == OP_SYSREAD) {
1707 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1708 if (IoTYPE(io) == IoTYPE_SOCKET) {
1709 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1715 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1720 #ifdef HAS_SOCKET__bad_code_maybe
1721 if (IoTYPE(io) == IoTYPE_SOCKET) {
1722 char namebuf[MAXPATHLEN];
1723 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1724 bufsize = sizeof (struct sockaddr_in);
1726 bufsize = sizeof namebuf;
1728 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1729 (struct sockaddr *)namebuf, &bufsize);
1734 count = PerlIO_read(IoIFP(io), buffer, length);
1735 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1736 if (count == 0 && PerlIO_error(IoIFP(io)))
1740 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1741 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1744 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1745 *SvEND(read_target) = '\0';
1746 (void)SvPOK_only(read_target);
1747 if (fp_utf8 && !IN_BYTES) {
1748 /* Look at utf8 we got back and count the characters */
1749 const char *bend = buffer + count;
1750 while (buffer < bend) {
1752 skip = UTF8SKIP(buffer);
1755 if (buffer - charskip + skip > bend) {
1756 /* partial character - try for rest of it */
1757 length = skip - (bend-buffer);
1758 offset = bend - SvPVX_const(bufsv);
1770 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1771 provided amount read (count) was what was requested (length)
1773 if (got < wanted && count == length) {
1774 length = wanted - got;
1775 offset = bend - SvPVX_const(bufsv);
1778 /* return value is character count */
1782 else if (buffer_utf8) {
1783 /* Let svcatsv upgrade the bytes we read in to utf8.
1784 The buffer is a mortal so will be freed soon. */
1785 sv_catsv_nomg(bufsv, read_target);
1788 /* This should not be marked tainted if the fp is marked clean */
1789 if (!(IoFLAGS(io) & IOf_UNTAINT))
1790 SvTAINTED_on(bufsv);
1803 const int items = (SP - PL_stack_base) - TOPMARK;
1807 sv = sv_2mortal(newSViv(sv_len(*SP)));
1816 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1827 if (PL_op->op_type == OP_SYSWRITE
1828 && gv && (io = GvIO(gv))
1829 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1834 *MARK = SvTIED_obj((SV*)io, mg);
1836 call_method("WRITE", G_SCALAR);
1847 #if Size_t_size > IVSIZE
1848 length = (Size_t)SvNVx(*++MARK);
1850 length = (Size_t)SvIVx(*++MARK);
1852 if ((SSize_t)length < 0)
1853 DIE(aTHX_ "Negative length");
1856 if (!io || !IoIFP(io)) {
1858 if (ckWARN(WARN_CLOSED))
1859 report_evil_fh(gv, io, PL_op->op_type);
1860 SETERRNO(EBADF,RMS_IFI);
1864 if (PerlIO_isutf8(IoIFP(io))) {
1865 if (!SvUTF8(bufsv)) {
1866 bufsv = sv_2mortal(newSVsv(bufsv));
1867 buffer = sv_2pvutf8(bufsv, &blen);
1869 buffer = SvPV(bufsv, blen);
1872 if (DO_UTF8(bufsv)) {
1873 /* Not modifying source SV, so making a temporary copy. */
1874 bufsv = sv_2mortal(newSVsv(bufsv));
1875 sv_utf8_downgrade(bufsv, FALSE);
1877 buffer = SvPV(bufsv, blen);
1880 if (PL_op->op_type == OP_SYSWRITE) {
1882 if (DO_UTF8(bufsv)) {
1883 /* length and offset are in chars */
1884 blen = sv_len_utf8(bufsv);
1887 offset = SvIVx(*++MARK);
1889 if (-offset > (IV)blen)
1890 DIE(aTHX_ "Offset outside string");
1892 } else if (offset >= (IV)blen && blen > 0)
1893 DIE(aTHX_ "Offset outside string");
1896 if (length > blen - offset)
1897 length = blen - offset;
1898 if (DO_UTF8(bufsv)) {
1899 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1900 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1903 buffer = buffer+offset;
1905 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1906 if (IoTYPE(io) == IoTYPE_SOCKET) {
1907 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1913 /* See the note at doio.c:do_print about filesize limits. --jhi */
1914 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1919 else if (SP > MARK) {
1921 char * const sockbuf = SvPVx(*++MARK, mlen);
1922 /* length is really flags */
1923 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1924 length, (struct sockaddr *)sockbuf, mlen);
1927 /* length is really flags */
1928 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1931 DIE(aTHX_ PL_no_sock_func, "send");
1937 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1938 #if Size_t_size > IVSIZE
1952 return pp_sysread();
1963 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1965 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1967 if (io && !IoIFP(io)) {
1968 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1970 IoFLAGS(io) &= ~IOf_START;
1971 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1972 sv_setpvn(GvSV(gv), "-", 1);
1973 SvSETMAGIC(GvSV(gv));
1975 else if (!nextargv(gv))
1980 gv = PL_last_in_gv; /* eof */
1983 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1985 if (gv && (io = GvIO(gv))
1986 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1989 XPUSHs(SvTIED_obj((SV*)io, mg));
1992 call_method("EOF", G_SCALAR);
1998 PUSHs(boolSV(!gv || do_eof(gv)));
2012 gv = PL_last_in_gv = (GV*)POPs;
2014 if (gv && (io = GvIO(gv))
2015 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2018 XPUSHs(SvTIED_obj((SV*)io, mg));
2021 call_method("TELL", G_SCALAR);
2027 #if LSEEKSIZE > IVSIZE
2028 PUSHn( do_tell(gv) );
2030 PUSHi( do_tell(gv) );
2037 return pp_sysseek();
2045 const int whence = POPi;
2046 #if LSEEKSIZE > IVSIZE
2047 Off_t offset = (Off_t)SvNVx(POPs);
2049 Off_t offset = (Off_t)SvIVx(POPs);
2053 gv = PL_last_in_gv = (GV*)POPs;
2055 if (gv && (io = GvIO(gv))
2056 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2059 XPUSHs(SvTIED_obj((SV*)io, mg));
2060 #if LSEEKSIZE > IVSIZE
2061 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2063 XPUSHs(sv_2mortal(newSViv(offset)));
2065 XPUSHs(sv_2mortal(newSViv(whence)));
2068 call_method("SEEK", G_SCALAR);
2074 if (PL_op->op_type == OP_SEEK)
2075 PUSHs(boolSV(do_seek(gv, offset, whence)));
2077 Off_t sought = do_sysseek(gv, offset, whence);
2079 PUSHs(&PL_sv_undef);
2082 #if LSEEKSIZE > IVSIZE
2087 : newSVpvn(zero_but_true, ZBTLEN);
2088 PUSHs(sv_2mortal(sv));
2097 /* There seems to be no consensus on the length type of truncate()
2098 * and ftruncate(), both off_t and size_t have supporters. In
2099 * general one would think that when using large files, off_t is
2100 * at least as wide as size_t, so using an off_t should be okay. */
2101 /* XXX Configure probe for the length type of *truncate() needed XXX */
2104 #if Off_t_size > IVSIZE
2109 /* Checking for length < 0 is problematic as the type might or
2110 * might not be signed: if it is not, clever compilers will moan. */
2111 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2118 if (PL_op->op_flags & OPf_SPECIAL) {
2119 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2128 TAINT_PROPER("truncate");
2129 if (!(fp = IoIFP(io))) {
2135 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2137 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2148 if (SvTYPE(sv) == SVt_PVGV) {
2149 tmpgv = (GV*)sv; /* *main::FRED for example */
2150 goto do_ftruncate_gv;
2152 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2153 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2154 goto do_ftruncate_gv;
2156 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2157 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2158 goto do_ftruncate_io;
2161 name = SvPV(sv, n_a);
2162 TAINT_PROPER("truncate");
2164 if (truncate(name, len) < 0)
2170 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2173 if (my_chsize(tmpfd, len) < 0)
2175 PerlLIO_close(tmpfd);
2184 SETERRNO(EBADF,RMS_IFI);
2198 const unsigned int func = POPu;
2199 const int optype = PL_op->op_type;
2203 IO *io = gv ? GvIOn(gv) : 0;
2205 if (!io || !argsv || !IoIFP(io)) {
2206 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2207 report_evil_fh(gv, io, PL_op->op_type);
2208 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2212 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2215 s = SvPV_force(argsv, len);
2216 need = IOCPARM_LEN(func);
2218 s = Sv_Grow(argsv, need + 1);
2219 SvCUR_set(argsv, need);
2222 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2225 retval = SvIV(argsv);
2226 s = INT2PTR(char*,retval); /* ouch */
2229 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2231 if (optype == OP_IOCTL)
2233 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2235 DIE(aTHX_ "ioctl is not implemented");
2239 DIE(aTHX_ "fcntl is not implemented");
2241 #if defined(OS2) && defined(__EMX__)
2242 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2244 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2248 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2250 if (s[SvCUR(argsv)] != 17)
2251 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2253 s[SvCUR(argsv)] = 0; /* put our null back */
2254 SvSETMAGIC(argsv); /* Assume it has changed */
2263 PUSHp(zero_but_true, ZBTLEN);
2284 if (gv && (io = GvIO(gv)))
2291 (void)PerlIO_flush(fp);
2292 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2295 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2296 report_evil_fh(gv, io, PL_op->op_type);
2298 SETERRNO(EBADF,RMS_IFI);
2303 DIE(aTHX_ PL_no_func, "flock()");
2315 int protocol = POPi;
2321 io = gv ? GvIOn(gv) : NULL;
2324 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2325 report_evil_fh(gv, io, PL_op->op_type);
2327 do_close(gv, FALSE);
2328 SETERRNO(EBADF,LIB_INVARG);
2333 do_close(gv, FALSE);
2335 TAINT_PROPER("socket");
2336 fd = PerlSock_socket(domain, type, protocol);
2339 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2340 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2341 IoTYPE(io) = IoTYPE_SOCKET;
2342 if (!IoIFP(io) || !IoOFP(io)) {
2343 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2344 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2345 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2348 #if defined(HAS_FCNTL) && defined(F_SETFD)
2349 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2353 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2358 DIE(aTHX_ PL_no_sock_func, "socket");
2364 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2370 int protocol = POPi;
2377 io1 = gv1 ? GvIOn(gv1) : NULL;
2378 io2 = gv2 ? GvIOn(gv2) : NULL;
2379 if (!gv1 || !gv2 || !io1 || !io2) {
2380 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2382 report_evil_fh(gv1, io1, PL_op->op_type);
2384 report_evil_fh(gv1, io2, PL_op->op_type);
2387 do_close(gv1, FALSE);
2389 do_close(gv2, FALSE);
2394 do_close(gv1, FALSE);
2396 do_close(gv2, FALSE);
2398 TAINT_PROPER("socketpair");
2399 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2401 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2402 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2403 IoTYPE(io1) = IoTYPE_SOCKET;
2404 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2405 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2406 IoTYPE(io2) = IoTYPE_SOCKET;
2407 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2408 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2409 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2410 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2411 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2412 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2413 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2416 #if defined(HAS_FCNTL) && defined(F_SETFD)
2417 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2418 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2423 DIE(aTHX_ PL_no_sock_func, "socketpair");
2431 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2432 extern void GETPRIVMODE();
2433 extern void GETUSERMODE();
2438 register IO *io = GvIOn(gv);
2442 int mpeprivmode = 0;
2445 if (!io || !IoIFP(io))
2448 addr = SvPV(addrsv, len);
2449 TAINT_PROPER("bind");
2450 #ifdef MPE /* Deal with MPE bind() peculiarities */
2451 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2452 /* The address *MUST* stupidly be zero. */
2453 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2454 /* PRIV mode is required to bind() to ports < 1024. */
2455 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2456 ((struct sockaddr_in *)addr)->sin_port > 0) {
2457 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2462 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2463 (struct sockaddr *)addr, len) >= 0)
2466 #ifdef MPE /* Switch back to USER mode */
2477 if (ckWARN(WARN_CLOSED))
2478 report_evil_fh(gv, io, PL_op->op_type);
2479 SETERRNO(EBADF,SS_IVCHAN);
2482 DIE(aTHX_ PL_no_sock_func, "bind");
2493 register IO *io = GvIOn(gv);
2496 if (!io || !IoIFP(io))
2499 addr = SvPV(addrsv, len);
2500 TAINT_PROPER("connect");
2501 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2507 if (ckWARN(WARN_CLOSED))
2508 report_evil_fh(gv, io, PL_op->op_type);
2509 SETERRNO(EBADF,SS_IVCHAN);
2512 DIE(aTHX_ PL_no_sock_func, "connect");
2522 register IO *io = gv ? GvIOn(gv) : NULL;
2524 if (!gv || !io || !IoIFP(io))
2527 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2533 if (ckWARN(WARN_CLOSED))
2534 report_evil_fh(gv, io, PL_op->op_type);
2535 SETERRNO(EBADF,SS_IVCHAN);
2538 DIE(aTHX_ PL_no_sock_func, "listen");
2550 char namebuf[MAXPATHLEN];
2551 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2552 Sock_size_t len = sizeof (struct sockaddr_in);
2554 Sock_size_t len = sizeof namebuf;
2567 if (!gstio || !IoIFP(gstio))
2571 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2575 do_close(ngv, FALSE);
2576 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2577 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2578 IoTYPE(nstio) = IoTYPE_SOCKET;
2579 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2580 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2581 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2582 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2585 #if defined(HAS_FCNTL) && defined(F_SETFD)
2586 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2590 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2591 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2593 #ifdef __SCO_VERSION__
2594 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2597 PUSHp(namebuf, len);
2601 if (ckWARN(WARN_CLOSED))
2602 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2603 SETERRNO(EBADF,SS_IVCHAN);
2609 DIE(aTHX_ PL_no_sock_func, "accept");
2619 register IO *io = GvIOn(gv);
2621 if (!io || !IoIFP(io))
2624 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2628 if (ckWARN(WARN_CLOSED))
2629 report_evil_fh(gv, io, PL_op->op_type);
2630 SETERRNO(EBADF,SS_IVCHAN);
2633 DIE(aTHX_ PL_no_sock_func, "shutdown");
2640 return pp_ssockopt();
2642 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2650 int optype = PL_op->op_type;
2653 unsigned int optname;
2659 if (optype == OP_GSOCKOPT)
2660 sv = sv_2mortal(NEWSV(22, 257));
2663 optname = (unsigned int) POPi;
2664 lvl = (unsigned int) POPi;
2668 if (!io || !IoIFP(io))
2671 fd = PerlIO_fileno(IoIFP(io));
2675 (void)SvPOK_only(sv);
2679 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2694 aint = (int)SvIV(sv);
2698 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2707 if (ckWARN(WARN_CLOSED))
2708 report_evil_fh(gv, io, optype);
2709 SETERRNO(EBADF,SS_IVCHAN);
2714 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2721 return pp_getpeername();
2723 DIE(aTHX_ PL_no_sock_func, "getsockname");
2731 int optype = PL_op->op_type;
2735 register IO *io = GvIOn(gv);
2738 if (!io || !IoIFP(io))
2741 sv = sv_2mortal(NEWSV(22, 257));
2742 (void)SvPOK_only(sv);
2746 fd = PerlIO_fileno(IoIFP(io));
2748 case OP_GETSOCKNAME:
2749 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2752 case OP_GETPEERNAME:
2753 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2755 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2757 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";
2758 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2759 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2760 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2761 sizeof(u_short) + sizeof(struct in_addr))) {
2768 #ifdef BOGUS_GETNAME_RETURN
2769 /* Interactive Unix, getpeername() and getsockname()
2770 does not return valid namelen */
2771 if (len == BOGUS_GETNAME_RETURN)
2772 len = sizeof(struct sockaddr);
2780 if (ckWARN(WARN_CLOSED))
2781 report_evil_fh(gv, io, optype);
2782 SETERRNO(EBADF,SS_IVCHAN);
2787 DIE(aTHX_ PL_no_sock_func, "getpeername");
2806 if (PL_op->op_flags & OPf_REF) {
2808 if (PL_op->op_type == OP_LSTAT) {
2809 if (gv != PL_defgv) {
2810 if (ckWARN(WARN_IO))
2811 Perl_warner(aTHX_ packWARN(WARN_IO),
2812 "lstat() on filehandle %s", GvENAME(gv));
2813 } else if (PL_laststype != OP_LSTAT)
2814 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2818 if (gv != PL_defgv) {
2819 PL_laststype = OP_STAT;
2821 sv_setpvn(PL_statname, "", 0);
2822 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2823 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2825 if (PL_laststatval < 0) {
2826 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2827 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2833 if (SvTYPE(sv) == SVt_PVGV) {
2837 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2839 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2840 Perl_warner(aTHX_ packWARN(WARN_IO),
2841 "lstat() on filehandle %s", GvENAME(gv));
2844 sv_setpv(PL_statname, SvPV_const(sv,n_a));
2846 PL_laststype = PL_op->op_type;
2847 if (PL_op->op_type == OP_LSTAT)
2848 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2850 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2851 if (PL_laststatval < 0) {
2852 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2853 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2859 if (gimme != G_ARRAY) {
2860 if (gimme != G_VOID)
2861 XPUSHs(boolSV(max));
2867 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2868 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2869 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2870 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2871 #if Uid_t_size > IVSIZE
2872 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2874 # if Uid_t_sign <= 0
2875 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2877 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2880 #if Gid_t_size > IVSIZE
2881 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2883 # if Gid_t_sign <= 0
2884 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2886 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2889 #ifdef USE_STAT_RDEV
2890 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2892 PUSHs(sv_2mortal(newSVpvn("", 0)));
2894 #if Off_t_size > IVSIZE
2895 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2897 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2900 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2901 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2902 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2904 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2905 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2906 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2908 #ifdef USE_STAT_BLOCKS
2909 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2910 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2912 PUSHs(sv_2mortal(newSVpvn("", 0)));
2913 PUSHs(sv_2mortal(newSVpvn("", 0)));
2919 /* This macro is used by the stacked filetest operators :
2920 * if the previous filetest failed, short-circuit and pass its value.
2921 * Else, discard it from the stack and continue. --rgs
2923 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2924 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2925 else { (void)POPs; PUTBACK; } \
2932 STACKED_FTEST_CHECK;
2933 #if defined(HAS_ACCESS) && defined(R_OK)
2934 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2936 result = access(POPpx, R_OK);
2951 if (cando(S_IRUSR, 0, &PL_statcache))
2960 STACKED_FTEST_CHECK;
2961 #if defined(HAS_ACCESS) && defined(W_OK)
2962 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2964 result = access(POPpx, W_OK);
2979 if (cando(S_IWUSR, 0, &PL_statcache))
2988 STACKED_FTEST_CHECK;
2989 #if defined(HAS_ACCESS) && defined(X_OK)
2990 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2992 result = access(POPpx, X_OK);
3007 if (cando(S_IXUSR, 0, &PL_statcache))
3016 STACKED_FTEST_CHECK;
3017 #ifdef PERL_EFF_ACCESS_R_OK
3018 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3020 result = PERL_EFF_ACCESS_R_OK(POPpx);
3035 if (cando(S_IRUSR, 1, &PL_statcache))
3044 STACKED_FTEST_CHECK;
3045 #ifdef PERL_EFF_ACCESS_W_OK
3046 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3048 result = PERL_EFF_ACCESS_W_OK(POPpx);
3063 if (cando(S_IWUSR, 1, &PL_statcache))
3072 STACKED_FTEST_CHECK;
3073 #ifdef PERL_EFF_ACCESS_X_OK
3074 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3076 result = PERL_EFF_ACCESS_X_OK(POPpx);
3091 if (cando(S_IXUSR, 1, &PL_statcache))
3100 STACKED_FTEST_CHECK;
3110 return pp_ftrowned();
3117 STACKED_FTEST_CHECK;
3122 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3132 STACKED_FTEST_CHECK;
3137 if (PL_statcache.st_size == 0)
3146 STACKED_FTEST_CHECK;
3151 #if Off_t_size > IVSIZE
3152 PUSHn(PL_statcache.st_size);
3154 PUSHi(PL_statcache.st_size);
3163 STACKED_FTEST_CHECK;
3168 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3176 STACKED_FTEST_CHECK;
3181 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3189 STACKED_FTEST_CHECK;
3194 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3202 STACKED_FTEST_CHECK;
3207 if (S_ISSOCK(PL_statcache.st_mode))
3216 STACKED_FTEST_CHECK;
3221 if (S_ISCHR(PL_statcache.st_mode))
3230 STACKED_FTEST_CHECK;
3235 if (S_ISBLK(PL_statcache.st_mode))
3244 STACKED_FTEST_CHECK;
3249 if (S_ISREG(PL_statcache.st_mode))
3258 STACKED_FTEST_CHECK;
3263 if (S_ISDIR(PL_statcache.st_mode))
3272 STACKED_FTEST_CHECK;
3277 if (S_ISFIFO(PL_statcache.st_mode))
3284 I32 result = my_lstat();
3288 if (S_ISLNK(PL_statcache.st_mode))
3298 STACKED_FTEST_CHECK;
3303 if (PL_statcache.st_mode & S_ISUID)
3314 STACKED_FTEST_CHECK;
3319 if (PL_statcache.st_mode & S_ISGID)
3330 STACKED_FTEST_CHECK;
3335 if (PL_statcache.st_mode & S_ISVTX)
3348 STACKED_FTEST_CHECK;
3350 if (PL_op->op_flags & OPf_REF)
3352 else if (isGV(TOPs))
3354 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3355 gv = (GV*)SvRV(POPs);
3357 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3359 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3360 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3361 else if (tmpsv && SvOK(tmpsv)) {
3363 char *tmps = SvPV(tmpsv, n_a);
3371 if (PerlLIO_isatty(fd))
3376 #if defined(atarist) /* this will work with atariST. Configure will
3377 make guesses for other systems. */
3378 # define FILE_base(f) ((f)->_base)
3379 # define FILE_ptr(f) ((f)->_ptr)
3380 # define FILE_cnt(f) ((f)->_cnt)
3381 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3391 register STDCHAR *s;
3398 STACKED_FTEST_CHECK;
3400 if (PL_op->op_flags & OPf_REF)
3402 else if (isGV(TOPs))
3404 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3405 gv = (GV*)SvRV(POPs);
3411 if (gv == PL_defgv) {
3413 io = GvIO(PL_statgv);
3416 goto really_filename;
3421 PL_laststatval = -1;
3422 sv_setpvn(PL_statname, "", 0);
3423 io = GvIO(PL_statgv);
3425 if (io && IoIFP(io)) {
3426 if (! PerlIO_has_base(IoIFP(io)))
3427 DIE(aTHX_ "-T and -B not implemented on filehandles");
3428 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3429 if (PL_laststatval < 0)
3431 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3432 if (PL_op->op_type == OP_FTTEXT)
3437 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3438 i = PerlIO_getc(IoIFP(io));
3440 (void)PerlIO_ungetc(IoIFP(io),i);
3442 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3444 len = PerlIO_get_bufsiz(IoIFP(io));
3445 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3446 /* sfio can have large buffers - limit to 512 */
3451 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3453 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3455 SETERRNO(EBADF,RMS_IFI);
3463 PL_laststype = OP_STAT;
3464 sv_setpv(PL_statname, SvPV(sv, n_a));
3465 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3466 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
3467 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3470 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3471 if (PL_laststatval < 0) {
3472 (void)PerlIO_close(fp);
3475 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3476 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3477 (void)PerlIO_close(fp);
3479 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3480 RETPUSHNO; /* special case NFS directories */
3481 RETPUSHYES; /* null file is anything */
3486 /* now scan s to look for textiness */
3487 /* XXX ASCII dependent code */
3489 #if defined(DOSISH) || defined(USEMYBINMODE)
3490 /* ignore trailing ^Z on short files */
3491 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3495 for (i = 0; i < len; i++, s++) {
3496 if (!*s) { /* null never allowed in text */
3501 else if (!(isPRINT(*s) || isSPACE(*s)))
3504 else if (*s & 128) {
3506 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3509 /* utf8 characters don't count as odd */
3510 if (UTF8_IS_START(*s)) {
3511 int ulen = UTF8SKIP(s);
3512 if (ulen < len - i) {
3514 for (j = 1; j < ulen; j++) {
3515 if (!UTF8_IS_CONTINUATION(s[j]))
3518 --ulen; /* loop does extra increment */
3528 *s != '\n' && *s != '\r' && *s != '\b' &&
3529 *s != '\t' && *s != '\f' && *s != 27)
3534 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3559 if( !tmps || !*tmps ) {
3560 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3561 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3563 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3568 deprecate("chdir('') or chdir(undef) as chdir()");
3569 tmps = SvPV_const(*svp, n_a);
3573 TAINT_PROPER("chdir");
3578 TAINT_PROPER("chdir");
3579 PUSHi( PerlDir_chdir(tmps) >= 0 );
3581 /* Clear the DEFAULT element of ENV so we'll get the new value
3583 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3591 dSP; dMARK; dTARGET;
3592 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3598 DIE(aTHX_ PL_no_func, "chown");
3608 TAINT_PROPER("chroot");
3609 PUSHi( chroot(tmps) >= 0 );
3612 DIE(aTHX_ PL_no_func, "chroot");
3618 dSP; dMARK; dTARGET;
3620 value = (I32)apply(PL_op->op_type, MARK, SP);
3628 dSP; dMARK; dTARGET;
3630 value = (I32)apply(PL_op->op_type, MARK, SP);
3638 dSP; dMARK; dTARGET;
3640 value = (I32)apply(PL_op->op_type, MARK, SP);
3651 const char *tmps2 = POPpconstx;
3652 const char *tmps = SvPV_nolen_const(TOPs);
3653 TAINT_PROPER("rename");
3655 anum = PerlLIO_rename(tmps, tmps2);
3657 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3658 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3661 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3662 (void)UNLINK(tmps2);
3663 if (!(anum = link(tmps, tmps2)))
3664 anum = UNLINK(tmps);
3677 const char *tmps2 = POPpconstx;
3678 const char *tmps = SvPV_nolen_const(TOPs);
3679 TAINT_PROPER("link");
3680 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3683 DIE(aTHX_ PL_no_func, "link");
3692 char *tmps2 = POPpx;
3693 char *tmps = SvPV(TOPs, n_a);
3694 TAINT_PROPER("symlink");
3695 SETi( symlink(tmps, tmps2) >= 0 );
3698 DIE(aTHX_ PL_no_func, "symlink");
3708 char buf[MAXPATHLEN];
3712 #ifndef INCOMPLETE_TAINTS
3716 len = readlink(tmps, buf, sizeof(buf) - 1);
3724 RETSETUNDEF; /* just pretend it's a normal file */
3728 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3730 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3732 char * const save_filename = filename;
3738 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3739 strcpy(cmdline, cmd);
3740 strcat(cmdline, " ");
3741 for (s = cmdline + strlen(cmdline); *filename; ) {
3746 myfp = PerlProc_popen(cmdline, "r");
3750 SV *tmpsv = sv_newmortal();
3751 /* Need to save/restore 'PL_rs' ?? */
3752 s = sv_gets(tmpsv, myfp, 0);
3753 (void)PerlProc_pclose(myfp);
3757 #ifdef HAS_SYS_ERRLIST
3762 /* you don't see this */
3764 #ifdef HAS_SYS_ERRLIST
3772 if (instr(s, errmsg)) {
3779 #define EACCES EPERM
3781 if (instr(s, "cannot make"))
3782 SETERRNO(EEXIST,RMS_FEX);
3783 else if (instr(s, "existing file"))
3784 SETERRNO(EEXIST,RMS_FEX);
3785 else if (instr(s, "ile exists"))
3786 SETERRNO(EEXIST,RMS_FEX);
3787 else if (instr(s, "non-exist"))
3788 SETERRNO(ENOENT,RMS_FNF);
3789 else if (instr(s, "does not exist"))
3790 SETERRNO(ENOENT,RMS_FNF);
3791 else if (instr(s, "not empty"))
3792 SETERRNO(EBUSY,SS_DEVOFFLINE);
3793 else if (instr(s, "cannot access"))
3794 SETERRNO(EACCES,RMS_PRV);
3796 SETERRNO(EPERM,RMS_PRV);
3799 else { /* some mkdirs return no failure indication */
3800 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3801 if (PL_op->op_type == OP_RMDIR)
3806 SETERRNO(EACCES,RMS_PRV); /* a guess */
3815 /* This macro removes trailing slashes from a directory name.
3816 * Different operating and file systems take differently to
3817 * trailing slashes. According to POSIX 1003.1 1996 Edition
3818 * any number of trailing slashes should be allowed.
3819 * Thusly we snip them away so that even non-conforming
3820 * systems are happy.
3821 * We should probably do this "filtering" for all
3822 * the functions that expect (potentially) directory names:
3823 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3824 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3826 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3827 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3830 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3831 (tmps) = savepvn((tmps), (len)); \
3851 TRIMSLASHES(tmps,len,copy);
3853 TAINT_PROPER("mkdir");
3855 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3857 SETi( dooneliner("mkdir", tmps) );
3858 oldumask = PerlLIO_umask(0);
3859 PerlLIO_umask(oldumask);
3860 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3874 TRIMSLASHES(tmps,len,copy);
3875 TAINT_PROPER("rmdir");
3877 SETi( PerlDir_rmdir(tmps) >= 0 );
3879 SETi( dooneliner("rmdir", tmps) );
3886 /* Directory calls. */
3890 #if defined(Direntry_t) && defined(HAS_READDIR)
3893 const char *dirname = POPpconstx;
3895 register IO *io = GvIOn(gv);
3901 PerlDir_close(IoDIRP(io));
3902 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3908 SETERRNO(EBADF,RMS_DIR);
3911 DIE(aTHX_ PL_no_dir_func, "opendir");
3917 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3918 DIE(aTHX_ PL_no_dir_func, "readdir");
3920 #if !defined(I_DIRENT) && !defined(VMS)
3921 Direntry_t *readdir (DIR *);
3926 const I32 gimme = GIMME;
3927 GV *gv = (GV *)POPs;
3928 register Direntry_t *dp;
3929 register IO *io = GvIOn(gv);
3931 if (!io || !IoDIRP(io))
3935 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3939 sv = newSVpvn(dp->d_name, dp->d_namlen);
3941 sv = newSVpv(dp->d_name, 0);
3943 #ifndef INCOMPLETE_TAINTS
3944 if (!(IoFLAGS(io) & IOf_UNTAINT))
3947 XPUSHs(sv_2mortal(sv));
3949 while (gimme == G_ARRAY);
3951 if (!dp && gimme != G_ARRAY)
3958 SETERRNO(EBADF,RMS_ISI);
3959 if (GIMME == G_ARRAY)
3968 #if defined(HAS_TELLDIR) || defined(telldir)
3970 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3971 /* XXX netbsd still seemed to.
3972 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3973 --JHI 1999-Feb-02 */
3974 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3975 long telldir (DIR *);
3978 register IO *io = GvIOn(gv);
3980 if (!io || !IoDIRP(io))
3983 PUSHi( PerlDir_tell(IoDIRP(io)) );
3987 SETERRNO(EBADF,RMS_ISI);
3990 DIE(aTHX_ PL_no_dir_func, "telldir");
3996 #if defined(HAS_SEEKDIR) || defined(seekdir)
4000 register IO *io = GvIOn(gv);
4002 if (!io || !IoDIRP(io))
4005 (void)PerlDir_seek(IoDIRP(io), along);
4010 SETERRNO(EBADF,RMS_ISI);
4013 DIE(aTHX_ PL_no_dir_func, "seekdir");
4019 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4022 register IO *io = GvIOn(gv);
4024 if (!io || !IoDIRP(io))
4027 (void)PerlDir_rewind(IoDIRP(io));
4031 SETERRNO(EBADF,RMS_ISI);
4034 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4040 #if defined(Direntry_t) && defined(HAS_READDIR)
4043 register IO *io = GvIOn(gv);
4045 if (!io || !IoDIRP(io))
4048 #ifdef VOID_CLOSEDIR
4049 PerlDir_close(IoDIRP(io));
4051 if (PerlDir_close(IoDIRP(io)) < 0) {
4052 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4061 SETERRNO(EBADF,RMS_IFI);
4064 DIE(aTHX_ PL_no_dir_func, "closedir");
4068 /* Process control. */
4078 PERL_FLUSHALL_FOR_CHILD;
4079 childpid = PerlProc_fork();
4084 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4085 SvREADONLY_off(GvSV(tmpgv));
4086 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4087 SvREADONLY_on(GvSV(tmpgv));
4089 #ifdef THREADS_HAVE_PIDS
4090 PL_ppid = (IV)getppid();
4092 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4097 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4102 PERL_FLUSHALL_FOR_CHILD;
4103 childpid = PerlProc_fork();
4109 DIE(aTHX_ PL_no_func, "fork");
4116 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4121 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4122 childpid = wait4pid(-1, &argflags, 0);
4124 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4129 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4130 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4131 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4133 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4138 DIE(aTHX_ PL_no_func, "wait");
4144 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4153 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4154 result = wait4pid(pid, &argflags, optype);
4156 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4161 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4162 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4163 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4165 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4170 DIE(aTHX_ PL_no_func, "waitpid");
4176 dSP; dMARK; dORIGMARK; dTARGET;
4183 while (++MARK <= SP) {
4184 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4189 TAINT_PROPER("system");
4191 PERL_FLUSHALL_FOR_CHILD;
4192 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4198 if (PerlProc_pipe(pp) >= 0)
4200 while ((childpid = PerlProc_fork()) == -1) {
4201 if (errno != EAGAIN) {
4206 PerlLIO_close(pp[0]);
4207 PerlLIO_close(pp[1]);
4214 Sigsave_t ihand,qhand; /* place to save signals during system() */
4218 PerlLIO_close(pp[1]);
4220 rsignal_save(SIGINT, SIG_IGN, &ihand);
4221 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4224 result = wait4pid(childpid, &status, 0);
4225 } while (result == -1 && errno == EINTR);
4227 (void)rsignal_restore(SIGINT, &ihand);
4228 (void)rsignal_restore(SIGQUIT, &qhand);
4230 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4231 do_execfree(); /* free any memory child malloced on fork */
4237 while (n < sizeof(int)) {
4238 n1 = PerlLIO_read(pp[0],
4239 (void*)(((char*)&errkid)+n),
4245 PerlLIO_close(pp[0]);
4246 if (n) { /* Error */
4247 if (n != sizeof(int))
4248 DIE(aTHX_ "panic: kid popen errno read");
4249 errno = errkid; /* Propagate errno from kid */
4250 STATUS_CURRENT = -1;
4253 PUSHi(STATUS_CURRENT);
4257 PerlLIO_close(pp[0]);
4258 #if defined(HAS_FCNTL) && defined(F_SETFD)
4259 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4262 if (PL_op->op_flags & OPf_STACKED) {
4263 SV *really = *++MARK;
4264 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4266 else if (SP - MARK != 1)
4267 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4269 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4273 #else /* ! FORK or VMS or OS/2 */
4276 if (PL_op->op_flags & OPf_STACKED) {
4277 SV *really = *++MARK;
4278 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4279 value = (I32)do_aspawn(really, MARK, SP);
4281 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4284 else if (SP - MARK != 1) {
4285 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4286 value = (I32)do_aspawn(Nullsv, MARK, SP);
4288 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4292 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4294 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4296 STATUS_NATIVE_SET(value);
4299 PUSHi(result ? value : STATUS_CURRENT);
4300 #endif /* !FORK or VMS */
4306 dSP; dMARK; dORIGMARK; dTARGET;
4312 while (++MARK <= SP) {
4313 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4318 TAINT_PROPER("exec");
4320 PERL_FLUSHALL_FOR_CHILD;
4321 if (PL_op->op_flags & OPf_STACKED) {
4322 SV *really = *++MARK;
4323 value = (I32)do_aexec(really, MARK, SP);
4325 else if (SP - MARK != 1)
4327 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4331 (void ) do_aspawn(Nullsv, MARK, SP);
4335 value = (I32)do_aexec(Nullsv, MARK, SP);
4340 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4343 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4346 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4359 dSP; dMARK; dTARGET;
4361 value = (I32)apply(PL_op->op_type, MARK, SP);
4366 DIE(aTHX_ PL_no_func, "kill");
4374 # ifdef THREADS_HAVE_PIDS
4375 if (PL_ppid != 1 && getppid() == 1)
4376 /* maybe the parent process has died. Refresh ppid cache */
4380 XPUSHi( getppid() );
4384 DIE(aTHX_ PL_no_func, "getppid");
4400 pgrp = (I32)BSD_GETPGRP(pid);
4402 if (pid != 0 && pid != PerlProc_getpid())
4403 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4409 DIE(aTHX_ PL_no_func, "getpgrp()");
4428 TAINT_PROPER("setpgrp");
4430 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4432 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4433 || (pid != 0 && pid != PerlProc_getpid()))
4435 DIE(aTHX_ "setpgrp can't take arguments");
4437 SETi( setpgrp() >= 0 );
4438 #endif /* USE_BSDPGRP */
4441 DIE(aTHX_ PL_no_func, "setpgrp()");
4447 #ifdef HAS_GETPRIORITY
4451 SETi( getpriority(which, who) );
4454 DIE(aTHX_ PL_no_func, "getpriority()");
4460 #ifdef HAS_SETPRIORITY
4465 TAINT_PROPER("setpriority");
4466 SETi( setpriority(which, who, niceval) >= 0 );
4469 DIE(aTHX_ PL_no_func, "setpriority()");
4479 XPUSHn( time(Null(Time_t*)) );
4481 XPUSHi( time(Null(Time_t*)) );
4492 (void)PerlProc_times(&PL_timesbuf);
4494 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4495 /* struct tms, though same data */
4499 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4500 if (GIMME == G_ARRAY) {
4501 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4502 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4503 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4509 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4511 if (GIMME == G_ARRAY) {
4512 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4513 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4514 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4518 DIE(aTHX_ "times not implemented");
4520 #endif /* HAS_TIMES */
4532 const struct tm *tmbuf;
4533 static const char * const dayname[] =
4534 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4535 static const char * const monname[] =
4536 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4537 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4543 when = (Time_t)SvNVx(POPs);
4545 when = (Time_t)SvIVx(POPs);
4548 if (PL_op->op_type == OP_LOCALTIME)
4549 tmbuf = localtime(&when);
4551 tmbuf = gmtime(&when);
4553 if (GIMME != G_ARRAY) {
4559 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4560 dayname[tmbuf->tm_wday],
4561 monname[tmbuf->tm_mon],
4566 tmbuf->tm_year + 1900);
4567 PUSHs(sv_2mortal(tsv));
4572 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4573 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4574 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4575 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4576 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4577 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4578 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4579 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4580 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4591 anum = alarm((unsigned int)anum);
4598 DIE(aTHX_ PL_no_func, "alarm");
4609 (void)time(&lasttime);
4614 PerlProc_sleep((unsigned int)duration);
4617 XPUSHi(when - lasttime);
4621 /* Shared memory. */
4635 return pp_shmwrite();
4640 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4641 dSP; dMARK; dTARGET;
4642 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4651 /* Message passing. */
4665 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4666 dSP; dMARK; dTARGET;
4667 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4678 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4679 dSP; dMARK; dTARGET;
4680 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4693 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4694 dSP; dMARK; dTARGET;
4695 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4702 DIE(aTHX_ "System V IPC is not implemented on this machine");
4708 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4709 dSP; dMARK; dTARGET;
4710 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4718 PUSHp(zero_but_true, ZBTLEN);
4728 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4729 dSP; dMARK; dTARGET;
4730 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4739 /* Get system info. */
4743 #ifdef HAS_GETHOSTBYNAME
4744 return pp_ghostent();
4746 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4752 #ifdef HAS_GETHOSTBYADDR
4753 return pp_ghostent();
4755 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4761 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4763 I32 which = PL_op->op_type;
4764 register char **elem;
4766 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4767 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4768 struct hostent *gethostbyname(Netdb_name_t);
4769 struct hostent *gethostent(void);
4771 struct hostent *hent;
4776 if (which == OP_GHBYNAME) {
4777 #ifdef HAS_GETHOSTBYNAME
4778 char* name = POPpbytex;
4779 hent = PerlSock_gethostbyname(name);
4781 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4784 else if (which == OP_GHBYADDR) {
4785 #ifdef HAS_GETHOSTBYADDR
4786 int addrtype = POPi;
4789 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4791 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4793 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4797 #ifdef HAS_GETHOSTENT
4798 hent = PerlSock_gethostent();
4800 DIE(aTHX_ PL_no_sock_func, "gethostent");
4803 #ifdef HOST_NOT_FOUND
4805 #ifdef USE_REENTRANT_API
4806 # ifdef USE_GETHOSTENT_ERRNO
4807 h_errno = PL_reentrant_buffer->_gethostent_errno;
4810 STATUS_NATIVE_SET(h_errno);
4814 if (GIMME != G_ARRAY) {
4815 PUSHs(sv = sv_newmortal());
4817 if (which == OP_GHBYNAME) {
4819 sv_setpvn(sv, hent->h_addr, hent->h_length);
4822 sv_setpv(sv, (char*)hent->h_name);
4828 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4829 sv_setpv(sv, (char*)hent->h_name);
4830 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4831 for (elem = hent->h_aliases; elem && *elem; elem++) {
4832 sv_catpv(sv, *elem);
4834 sv_catpvn(sv, " ", 1);
4836 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4837 sv_setiv(sv, (IV)hent->h_addrtype);
4838 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4839 len = hent->h_length;
4840 sv_setiv(sv, (IV)len);
4842 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4843 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4844 sv_setpvn(sv, *elem, len);
4847 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4849 sv_setpvn(sv, hent->h_addr, len);
4854 DIE(aTHX_ PL_no_sock_func, "gethostent");
4860 #ifdef HAS_GETNETBYNAME
4861 return pp_gnetent();
4863 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4869 #ifdef HAS_GETNETBYADDR
4870 return pp_gnetent();
4872 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4878 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4880 I32 which = PL_op->op_type;
4881 register char **elem;
4883 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4884 struct netent *getnetbyaddr(Netdb_net_t, int);
4885 struct netent *getnetbyname(Netdb_name_t);
4886 struct netent *getnetent(void);
4888 struct netent *nent;
4891 if (which == OP_GNBYNAME){
4892 #ifdef HAS_GETNETBYNAME
4893 char *name = POPpbytex;
4894 nent = PerlSock_getnetbyname(name);
4896 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4899 else if (which == OP_GNBYADDR) {
4900 #ifdef HAS_GETNETBYADDR
4901 int addrtype = POPi;
4902 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4903 nent = PerlSock_getnetbyaddr(addr, addrtype);
4905 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4909 #ifdef HAS_GETNETENT
4910 nent = PerlSock_getnetent();
4912 DIE(aTHX_ PL_no_sock_func, "getnetent");
4915 #ifdef HOST_NOT_FOUND
4917 #ifdef USE_REENTRANT_API
4918 # ifdef USE_GETNETENT_ERRNO
4919 h_errno = PL_reentrant_buffer->_getnetent_errno;
4922 STATUS_NATIVE_SET(h_errno);
4927 if (GIMME != G_ARRAY) {
4928 PUSHs(sv = sv_newmortal());
4930 if (which == OP_GNBYNAME)
4931 sv_setiv(sv, (IV)nent->n_net);
4933 sv_setpv(sv, nent->n_name);
4939 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4940 sv_setpv(sv, nent->n_name);
4941 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4942 for (elem = nent->n_aliases; elem && *elem; elem++) {
4943 sv_catpv(sv, *elem);
4945 sv_catpvn(sv, " ", 1);
4947 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4948 sv_setiv(sv, (IV)nent->n_addrtype);
4949 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4950 sv_setiv(sv, (IV)nent->n_net);
4955 DIE(aTHX_ PL_no_sock_func, "getnetent");
4961 #ifdef HAS_GETPROTOBYNAME
4962 return pp_gprotoent();
4964 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4970 #ifdef HAS_GETPROTOBYNUMBER
4971 return pp_gprotoent();
4973 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4979 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4981 I32 which = PL_op->op_type;
4982 register char **elem;
4984 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4985 struct protoent *getprotobyname(Netdb_name_t);
4986 struct protoent *getprotobynumber(int);
4987 struct protoent *getprotoent(void);
4989 struct protoent *pent;
4992 if (which == OP_GPBYNAME) {
4993 #ifdef HAS_GETPROTOBYNAME
4994 char* name = POPpbytex;
4995 pent = PerlSock_getprotobyname(name);
4997 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5000 else if (which == OP_GPBYNUMBER) {
5001 #ifdef HAS_GETPROTOBYNUMBER
5003 pent = PerlSock_getprotobynumber(number);
5005 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5009 #ifdef HAS_GETPROTOENT
5010 pent = PerlSock_getprotoent();
5012 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5016 if (GIMME != G_ARRAY) {
5017 PUSHs(sv = sv_newmortal());
5019 if (which == OP_GPBYNAME)
5020 sv_setiv(sv, (IV)pent->p_proto);
5022 sv_setpv(sv, pent->p_name);
5028 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5029 sv_setpv(sv, pent->p_name);
5030 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5031 for (elem = pent->p_aliases; elem && *elem; elem++) {
5032 sv_catpv(sv, *elem);
5034 sv_catpvn(sv, " ", 1);
5036 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5037 sv_setiv(sv, (IV)pent->p_proto);
5042 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5048 #ifdef HAS_GETSERVBYNAME
5049 return pp_gservent();
5051 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5057 #ifdef HAS_GETSERVBYPORT
5058 return pp_gservent();
5060 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5066 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5068 I32 which = PL_op->op_type;
5069 register char **elem;
5071 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5072 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5073 struct servent *getservbyport(int, Netdb_name_t);
5074 struct servent *getservent(void);
5076 struct servent *sent;
5079 if (which == OP_GSBYNAME) {
5080 #ifdef HAS_GETSERVBYNAME
5081 char *proto = POPpbytex;
5082 char *name = POPpbytex;
5084 if (proto && !*proto)
5087 sent = PerlSock_getservbyname(name, proto);
5089 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5092 else if (which == OP_GSBYPORT) {
5093 #ifdef HAS_GETSERVBYPORT
5094 char *proto = POPpbytex;
5095 unsigned short port = (unsigned short)POPu;
5097 if (proto && !*proto)
5101 port = PerlSock_htons(port);
5103 sent = PerlSock_getservbyport(port, proto);
5105 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5109 #ifdef HAS_GETSERVENT
5110 sent = PerlSock_getservent();
5112 DIE(aTHX_ PL_no_sock_func, "getservent");
5116 if (GIMME != G_ARRAY) {
5117 PUSHs(sv = sv_newmortal());
5119 if (which == OP_GSBYNAME) {
5121 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5123 sv_setiv(sv, (IV)(sent->s_port));
5127 sv_setpv(sv, sent->s_name);
5133 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5134 sv_setpv(sv, sent->s_name);
5135 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5136 for (elem = sent->s_aliases; elem && *elem; elem++) {
5137 sv_catpv(sv, *elem);
5139 sv_catpvn(sv, " ", 1);
5141 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5143 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5145 sv_setiv(sv, (IV)(sent->s_port));
5147 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5148 sv_setpv(sv, sent->s_proto);
5153 DIE(aTHX_ PL_no_sock_func, "getservent");
5159 #ifdef HAS_SETHOSTENT
5161 PerlSock_sethostent(TOPi);
5164 DIE(aTHX_ PL_no_sock_func, "sethostent");
5170 #ifdef HAS_SETNETENT
5172 PerlSock_setnetent(TOPi);
5175 DIE(aTHX_ PL_no_sock_func, "setnetent");
5181 #ifdef HAS_SETPROTOENT
5183 PerlSock_setprotoent(TOPi);
5186 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5192 #ifdef HAS_SETSERVENT
5194 PerlSock_setservent(TOPi);
5197 DIE(aTHX_ PL_no_sock_func, "setservent");
5203 #ifdef HAS_ENDHOSTENT
5205 PerlSock_endhostent();
5209 DIE(aTHX_ PL_no_sock_func, "endhostent");
5215 #ifdef HAS_ENDNETENT
5217 PerlSock_endnetent();
5221 DIE(aTHX_ PL_no_sock_func, "endnetent");
5227 #ifdef HAS_ENDPROTOENT
5229 PerlSock_endprotoent();
5233 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5239 #ifdef HAS_ENDSERVENT
5241 PerlSock_endservent();
5245 DIE(aTHX_ PL_no_sock_func, "endservent");
5254 DIE(aTHX_ PL_no_func, "getpwnam");
5263 DIE(aTHX_ PL_no_func, "getpwuid");
5271 I32 which = PL_op->op_type;
5274 struct passwd *pwent = NULL;
5276 * We currently support only the SysV getsp* shadow password interface.
5277 * The interface is declared in <shadow.h> and often one needs to link
5278 * with -lsecurity or some such.
5279 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5282 * AIX getpwnam() is clever enough to return the encrypted password
5283 * only if the caller (euid?) is root.
5285 * There are at least three other shadow password APIs. Many platforms
5286 * seem to contain more than one interface for accessing the shadow
5287 * password databases, possibly for compatibility reasons.
5288 * The getsp*() is by far he simplest one, the other two interfaces
5289 * are much more complicated, but also very similar to each other.
5294 * struct pr_passwd *getprpw*();
5295 * The password is in
5296 * char getprpw*(...).ufld.fd_encrypt[]
5297 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5302 * struct es_passwd *getespw*();
5303 * The password is in
5304 * char *(getespw*(...).ufld.fd_encrypt)
5305 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5308 * struct userpw *getuserpw();
5309 * The password is in
5310 * char *(getuserpw(...)).spw_upw_passwd
5311 * (but the de facto standard getpwnam() should work okay)
5313 * Mention I_PROT here so that Configure probes for it.
5315 * In HP-UX for getprpw*() the manual page claims that one should include
5316 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5317 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5318 * and pp_sys.c already includes <shadow.h> if there is such.
5320 * Note that <sys/security.h> is already probed for, but currently
5321 * it is only included in special cases.
5323 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5324 * be preferred interface, even though also the getprpw*() interface
5325 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5326 * One also needs to call set_auth_parameters() in main() before
5327 * doing anything else, whether one is using getespw*() or getprpw*().
5329 * Note that accessing the shadow databases can be magnitudes
5330 * slower than accessing the standard databases.
5335 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5336 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5337 * the pw_comment is left uninitialized. */
5338 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5344 char* name = POPpbytex;
5345 pwent = getpwnam(name);
5351 pwent = getpwuid(uid);
5355 # ifdef HAS_GETPWENT
5357 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5358 if (pwent) pwent = getpwnam(pwent->pw_name);
5361 DIE(aTHX_ PL_no_func, "getpwent");
5367 if (GIMME != G_ARRAY) {
5368 PUSHs(sv = sv_newmortal());
5370 if (which == OP_GPWNAM)
5371 # if Uid_t_sign <= 0
5372 sv_setiv(sv, (IV)pwent->pw_uid);
5374 sv_setuv(sv, (UV)pwent->pw_uid);
5377 sv_setpv(sv, pwent->pw_name);
5383 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5384 sv_setpv(sv, pwent->pw_name);
5386 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5388 /* If we have getspnam(), we try to dig up the shadow
5389 * password. If we are underprivileged, the shadow
5390 * interface will set the errno to EACCES or similar,
5391 * and return a null pointer. If this happens, we will
5392 * use the dummy password (usually "*" or "x") from the
5393 * standard password database.
5395 * In theory we could skip the shadow call completely
5396 * if euid != 0 but in practice we cannot know which
5397 * security measures are guarding the shadow databases
5398 * on a random platform.
5400 * Resist the urge to use additional shadow interfaces.
5401 * Divert the urge to writing an extension instead.
5404 /* Some AIX setups falsely(?) detect some getspnam(), which
5405 * has a different API than the Solaris/IRIX one. */
5406 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5408 struct spwd *spwent;
5409 int saverrno; /* Save and restore errno so that
5410 * underprivileged attempts seem
5411 * to have never made the unsccessful
5412 * attempt to retrieve the shadow password. */
5415 spwent = getspnam(pwent->pw_name);
5417 if (spwent && spwent->sp_pwdp)
5418 sv_setpv(sv, spwent->sp_pwdp);
5422 if (!SvPOK(sv)) /* Use the standard password, then. */
5423 sv_setpv(sv, pwent->pw_passwd);
5426 # ifndef INCOMPLETE_TAINTS
5427 /* passwd is tainted because user himself can diddle with it.
5428 * admittedly not much and in a very limited way, but nevertheless. */
5432 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5433 # if Uid_t_sign <= 0
5434 sv_setiv(sv, (IV)pwent->pw_uid);
5436 sv_setuv(sv, (UV)pwent->pw_uid);
5439 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5440 # if Uid_t_sign <= 0
5441 sv_setiv(sv, (IV)pwent->pw_gid);
5443 sv_setuv(sv, (UV)pwent->pw_gid);
5445 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5446 * because of the poor interface of the Perl getpw*(),
5447 * not because there's some standard/convention saying so.
5448 * A better interface would have been to return a hash,
5449 * but we are accursed by our history, alas. --jhi. */
5450 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5452 sv_setiv(sv, (IV)pwent->pw_change);
5455 sv_setiv(sv, (IV)pwent->pw_quota);
5458 sv_setpv(sv, pwent->pw_age);
5463 /* pw_class and pw_comment are mutually exclusive--.
5464 * see the above note for pw_change, pw_quota, and pw_age. */
5465 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5467 sv_setpv(sv, pwent->pw_class);
5470 sv_setpv(sv, pwent->pw_comment);
5474 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5476 sv_setpv(sv, pwent->pw_gecos);
5478 # ifndef INCOMPLETE_TAINTS
5479 /* pw_gecos is tainted because user himself can diddle with it. */
5483 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5484 sv_setpv(sv, pwent->pw_dir);
5486 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5487 sv_setpv(sv, pwent->pw_shell);
5488 # ifndef INCOMPLETE_TAINTS
5489 /* pw_shell is tainted because user himself can diddle with it. */
5494 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5495 sv_setiv(sv, (IV)pwent->pw_expire);
5500 DIE(aTHX_ PL_no_func, "getpwent");
5506 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5511 DIE(aTHX_ PL_no_func, "setpwent");
5517 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5522 DIE(aTHX_ PL_no_func, "endpwent");
5531 DIE(aTHX_ PL_no_func, "getgrnam");
5540 DIE(aTHX_ PL_no_func, "getgrgid");
5548 I32 which = PL_op->op_type;
5549 register char **elem;
5551 struct group *grent;
5554 if (which == OP_GGRNAM) {
5555 char* name = POPpbytex;
5556 grent = (struct group *)getgrnam(name);
5558 else if (which == OP_GGRGID) {
5560 grent = (struct group *)getgrgid(gid);
5564 grent = (struct group *)getgrent();
5566 DIE(aTHX_ PL_no_func, "getgrent");
5570 if (GIMME != G_ARRAY) {
5571 PUSHs(sv = sv_newmortal());
5573 if (which == OP_GGRNAM)
5574 sv_setiv(sv, (IV)grent->gr_gid);
5576 sv_setpv(sv, grent->gr_name);
5582 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5583 sv_setpv(sv, grent->gr_name);
5585 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5587 sv_setpv(sv, grent->gr_passwd);
5590 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5591 sv_setiv(sv, (IV)grent->gr_gid);
5593 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5594 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5595 /* In UNICOS/mk (_CRAYMPP) the multithreading
5596 * versions (getgrnam_r, getgrgid_r)
5597 * seem to return an illegal pointer
5598 * as the group members list, gr_mem.
5599 * getgrent() doesn't even have a _r version
5600 * but the gr_mem is poisonous anyway.
5601 * So yes, you cannot get the list of group
5602 * members if building multithreaded in UNICOS/mk. */
5603 for (elem = grent->gr_mem; elem && *elem; elem++) {
5604 sv_catpv(sv, *elem);
5606 sv_catpvn(sv, " ", 1);
5613 DIE(aTHX_ PL_no_func, "getgrent");
5619 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5624 DIE(aTHX_ PL_no_func, "setgrent");
5630 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5635 DIE(aTHX_ PL_no_func, "endgrent");
5645 if (!(tmps = PerlProc_getlogin()))
5647 PUSHp(tmps, strlen(tmps));
5650 DIE(aTHX_ PL_no_func, "getlogin");
5654 /* Miscellaneous. */
5659 dSP; dMARK; dORIGMARK; dTARGET;
5660 register I32 items = SP - MARK;
5661 unsigned long a[20];
5667 while (++MARK <= SP) {
5668 if (SvTAINTED(*MARK)) {
5674 TAINT_PROPER("syscall");
5677 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5678 * or where sizeof(long) != sizeof(char*). But such machines will
5679 * not likely have syscall implemented either, so who cares?
5681 while (++MARK <= SP) {
5682 if (SvNIOK(*MARK) || !i)
5683 a[i++] = SvIV(*MARK);
5684 else if (*MARK == &PL_sv_undef)
5687 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5693 DIE(aTHX_ "Too many args to syscall");
5695 DIE(aTHX_ "Too few args to syscall");
5697 retval = syscall(a[0]);
5700 retval = syscall(a[0],a[1]);
5703 retval = syscall(a[0],a[1],a[2]);
5706 retval = syscall(a[0],a[1],a[2],a[3]);
5709 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5712 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5715 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5718 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5722 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5725 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5728 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5732 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5736 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5740 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5741 a[10],a[11],a[12],a[13]);
5743 #endif /* atarist */
5749 DIE(aTHX_ PL_no_func, "syscall");
5753 #ifdef FCNTL_EMULATE_FLOCK
5755 /* XXX Emulate flock() with fcntl().
5756 What's really needed is a good file locking module.
5760 fcntl_emulate_flock(int fd, int operation)
5764 switch (operation & ~LOCK_NB) {
5766 flock.l_type = F_RDLCK;
5769 flock.l_type = F_WRLCK;
5772 flock.l_type = F_UNLCK;
5778 flock.l_whence = SEEK_SET;
5779 flock.l_start = flock.l_len = (Off_t)0;
5781 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5784 #endif /* FCNTL_EMULATE_FLOCK */
5786 #ifdef LOCKF_EMULATE_FLOCK
5788 /* XXX Emulate flock() with lockf(). This is just to increase
5789 portability of scripts. The calls are not completely
5790 interchangeable. What's really needed is a good file
5794 /* The lockf() constants might have been defined in <unistd.h>.
5795 Unfortunately, <unistd.h> causes troubles on some mixed
5796 (BSD/POSIX) systems, such as SunOS 4.1.3.
5798 Further, the lockf() constants aren't POSIX, so they might not be
5799 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5800 just stick in the SVID values and be done with it. Sigh.
5804 # define F_ULOCK 0 /* Unlock a previously locked region */
5807 # define F_LOCK 1 /* Lock a region for exclusive use */
5810 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5813 # define F_TEST 3 /* Test a region for other processes locks */
5817 lockf_emulate_flock(int fd, int operation)
5823 /* flock locks entire file so for lockf we need to do the same */
5825 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5826 if (pos > 0) /* is seekable and needs to be repositioned */
5827 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5828 pos = -1; /* seek failed, so don't seek back afterwards */
5831 switch (operation) {
5833 /* LOCK_SH - get a shared lock */
5835 /* LOCK_EX - get an exclusive lock */
5837 i = lockf (fd, F_LOCK, 0);
5840 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5841 case LOCK_SH|LOCK_NB:
5842 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5843 case LOCK_EX|LOCK_NB:
5844 i = lockf (fd, F_TLOCK, 0);
5846 if ((errno == EAGAIN) || (errno == EACCES))
5847 errno = EWOULDBLOCK;
5850 /* LOCK_UN - unlock (non-blocking is a no-op) */
5852 case LOCK_UN|LOCK_NB:
5853 i = lockf (fd, F_ULOCK, 0);
5856 /* Default - can't decipher operation */
5863 if (pos > 0) /* need to restore position of the handle */
5864 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5869 #endif /* LOCKF_EMULATE_FLOCK */
5873 * c-indentation-style: bsd
5875 * indent-tabs-mode: t
5878 * ex: set ts=8 sts=4 sw=4 noet: