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_const(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_const(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 = (const char*)utf8_hop((const 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)
2147 if (SvTYPE(sv) == SVt_PVGV) {
2148 tmpgv = (GV*)sv; /* *main::FRED for example */
2149 goto do_ftruncate_gv;
2151 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2152 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2153 goto do_ftruncate_gv;
2155 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2156 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2157 goto do_ftruncate_io;
2160 name = SvPV_nolen_const(sv);
2161 TAINT_PROPER("truncate");
2163 if (truncate(name, len) < 0)
2169 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2172 if (my_chsize(tmpfd, len) < 0)
2174 PerlLIO_close(tmpfd);
2183 SETERRNO(EBADF,RMS_IFI);
2197 const unsigned int func = POPu;
2198 const int optype = PL_op->op_type;
2202 IO *io = gv ? GvIOn(gv) : 0;
2204 if (!io || !argsv || !IoIFP(io)) {
2205 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2206 report_evil_fh(gv, io, PL_op->op_type);
2207 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2211 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2214 s = SvPV_force(argsv, len);
2215 need = IOCPARM_LEN(func);
2217 s = Sv_Grow(argsv, need + 1);
2218 SvCUR_set(argsv, need);
2221 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2224 retval = SvIV(argsv);
2225 s = INT2PTR(char*,retval); /* ouch */
2228 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2230 if (optype == OP_IOCTL)
2232 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2234 DIE(aTHX_ "ioctl is not implemented");
2238 DIE(aTHX_ "fcntl is not implemented");
2240 #if defined(OS2) && defined(__EMX__)
2241 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2243 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2247 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2249 if (s[SvCUR(argsv)] != 17)
2250 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2252 s[SvCUR(argsv)] = 0; /* put our null back */
2253 SvSETMAGIC(argsv); /* Assume it has changed */
2262 PUSHp(zero_but_true, ZBTLEN);
2283 if (gv && (io = GvIO(gv)))
2290 (void)PerlIO_flush(fp);
2291 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2294 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2295 report_evil_fh(gv, io, PL_op->op_type);
2297 SETERRNO(EBADF,RMS_IFI);
2302 DIE(aTHX_ PL_no_func, "flock()");
2314 int protocol = POPi;
2320 io = gv ? GvIOn(gv) : NULL;
2323 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2324 report_evil_fh(gv, io, PL_op->op_type);
2326 do_close(gv, FALSE);
2327 SETERRNO(EBADF,LIB_INVARG);
2332 do_close(gv, FALSE);
2334 TAINT_PROPER("socket");
2335 fd = PerlSock_socket(domain, type, protocol);
2338 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2339 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2340 IoTYPE(io) = IoTYPE_SOCKET;
2341 if (!IoIFP(io) || !IoOFP(io)) {
2342 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2343 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2344 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2347 #if defined(HAS_FCNTL) && defined(F_SETFD)
2348 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2352 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2357 DIE(aTHX_ PL_no_sock_func, "socket");
2363 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2369 int protocol = POPi;
2376 io1 = gv1 ? GvIOn(gv1) : NULL;
2377 io2 = gv2 ? GvIOn(gv2) : NULL;
2378 if (!gv1 || !gv2 || !io1 || !io2) {
2379 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2381 report_evil_fh(gv1, io1, PL_op->op_type);
2383 report_evil_fh(gv1, io2, PL_op->op_type);
2386 do_close(gv1, FALSE);
2388 do_close(gv2, FALSE);
2393 do_close(gv1, FALSE);
2395 do_close(gv2, FALSE);
2397 TAINT_PROPER("socketpair");
2398 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2400 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2401 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2402 IoTYPE(io1) = IoTYPE_SOCKET;
2403 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2404 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2405 IoTYPE(io2) = IoTYPE_SOCKET;
2406 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2407 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2408 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2409 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2410 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2411 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2412 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2415 #if defined(HAS_FCNTL) && defined(F_SETFD)
2416 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2417 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2422 DIE(aTHX_ PL_no_sock_func, "socketpair");
2430 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2431 extern void GETPRIVMODE();
2432 extern void GETUSERMODE();
2437 register IO *io = GvIOn(gv);
2441 int mpeprivmode = 0;
2444 if (!io || !IoIFP(io))
2447 addr = SvPV(addrsv, len);
2448 TAINT_PROPER("bind");
2449 #ifdef MPE /* Deal with MPE bind() peculiarities */
2450 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2451 /* The address *MUST* stupidly be zero. */
2452 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2453 /* PRIV mode is required to bind() to ports < 1024. */
2454 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2455 ((struct sockaddr_in *)addr)->sin_port > 0) {
2456 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2461 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2462 (struct sockaddr *)addr, len) >= 0)
2465 #ifdef MPE /* Switch back to USER mode */
2476 if (ckWARN(WARN_CLOSED))
2477 report_evil_fh(gv, io, PL_op->op_type);
2478 SETERRNO(EBADF,SS_IVCHAN);
2481 DIE(aTHX_ PL_no_sock_func, "bind");
2492 register IO *io = GvIOn(gv);
2495 if (!io || !IoIFP(io))
2498 addr = SvPV(addrsv, len);
2499 TAINT_PROPER("connect");
2500 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2506 if (ckWARN(WARN_CLOSED))
2507 report_evil_fh(gv, io, PL_op->op_type);
2508 SETERRNO(EBADF,SS_IVCHAN);
2511 DIE(aTHX_ PL_no_sock_func, "connect");
2521 register IO *io = gv ? GvIOn(gv) : NULL;
2523 if (!gv || !io || !IoIFP(io))
2526 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2532 if (ckWARN(WARN_CLOSED))
2533 report_evil_fh(gv, io, PL_op->op_type);
2534 SETERRNO(EBADF,SS_IVCHAN);
2537 DIE(aTHX_ PL_no_sock_func, "listen");
2549 char namebuf[MAXPATHLEN];
2550 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2551 Sock_size_t len = sizeof (struct sockaddr_in);
2553 Sock_size_t len = sizeof namebuf;
2566 if (!gstio || !IoIFP(gstio))
2570 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2574 do_close(ngv, FALSE);
2575 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2576 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2577 IoTYPE(nstio) = IoTYPE_SOCKET;
2578 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2579 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2580 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2581 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2584 #if defined(HAS_FCNTL) && defined(F_SETFD)
2585 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2589 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2590 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2592 #ifdef __SCO_VERSION__
2593 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2596 PUSHp(namebuf, len);
2600 if (ckWARN(WARN_CLOSED))
2601 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2602 SETERRNO(EBADF,SS_IVCHAN);
2608 DIE(aTHX_ PL_no_sock_func, "accept");
2618 register IO *io = GvIOn(gv);
2620 if (!io || !IoIFP(io))
2623 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2627 if (ckWARN(WARN_CLOSED))
2628 report_evil_fh(gv, io, PL_op->op_type);
2629 SETERRNO(EBADF,SS_IVCHAN);
2632 DIE(aTHX_ PL_no_sock_func, "shutdown");
2639 return pp_ssockopt();
2641 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2649 int optype = PL_op->op_type;
2652 unsigned int optname;
2658 if (optype == OP_GSOCKOPT)
2659 sv = sv_2mortal(NEWSV(22, 257));
2662 optname = (unsigned int) POPi;
2663 lvl = (unsigned int) POPi;
2667 if (!io || !IoIFP(io))
2670 fd = PerlIO_fileno(IoIFP(io));
2674 (void)SvPOK_only(sv);
2678 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2693 aint = (int)SvIV(sv);
2697 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2706 if (ckWARN(WARN_CLOSED))
2707 report_evil_fh(gv, io, optype);
2708 SETERRNO(EBADF,SS_IVCHAN);
2713 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2720 return pp_getpeername();
2722 DIE(aTHX_ PL_no_sock_func, "getsockname");
2730 int optype = PL_op->op_type;
2734 register IO *io = GvIOn(gv);
2737 if (!io || !IoIFP(io))
2740 sv = sv_2mortal(NEWSV(22, 257));
2741 (void)SvPOK_only(sv);
2745 fd = PerlIO_fileno(IoIFP(io));
2747 case OP_GETSOCKNAME:
2748 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2751 case OP_GETPEERNAME:
2752 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2754 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2756 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";
2757 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2758 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2759 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2760 sizeof(u_short) + sizeof(struct in_addr))) {
2767 #ifdef BOGUS_GETNAME_RETURN
2768 /* Interactive Unix, getpeername() and getsockname()
2769 does not return valid namelen */
2770 if (len == BOGUS_GETNAME_RETURN)
2771 len = sizeof(struct sockaddr);
2779 if (ckWARN(WARN_CLOSED))
2780 report_evil_fh(gv, io, optype);
2781 SETERRNO(EBADF,SS_IVCHAN);
2786 DIE(aTHX_ PL_no_sock_func, "getpeername");
2805 if (PL_op->op_flags & OPf_REF) {
2807 if (PL_op->op_type == OP_LSTAT) {
2808 if (gv != PL_defgv) {
2809 if (ckWARN(WARN_IO))
2810 Perl_warner(aTHX_ packWARN(WARN_IO),
2811 "lstat() on filehandle %s", GvENAME(gv));
2812 } else if (PL_laststype != OP_LSTAT)
2813 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2817 if (gv != PL_defgv) {
2818 PL_laststype = OP_STAT;
2820 sv_setpvn(PL_statname, "", 0);
2821 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2822 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2824 if (PL_laststatval < 0) {
2825 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2826 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2832 if (SvTYPE(sv) == SVt_PVGV) {
2836 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2838 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2839 Perl_warner(aTHX_ packWARN(WARN_IO),
2840 "lstat() on filehandle %s", GvENAME(gv));
2843 sv_setpv(PL_statname, SvPV_const(sv,n_a));
2845 PL_laststype = PL_op->op_type;
2846 if (PL_op->op_type == OP_LSTAT)
2847 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2849 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2850 if (PL_laststatval < 0) {
2851 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2852 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2858 if (gimme != G_ARRAY) {
2859 if (gimme != G_VOID)
2860 XPUSHs(boolSV(max));
2866 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2867 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2868 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2869 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2870 #if Uid_t_size > IVSIZE
2871 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2873 # if Uid_t_sign <= 0
2874 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2876 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2879 #if Gid_t_size > IVSIZE
2880 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2882 # if Gid_t_sign <= 0
2883 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2885 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2888 #ifdef USE_STAT_RDEV
2889 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2891 PUSHs(sv_2mortal(newSVpvn("", 0)));
2893 #if Off_t_size > IVSIZE
2894 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2896 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2899 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2900 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2901 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2903 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2904 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2905 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2907 #ifdef USE_STAT_BLOCKS
2908 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2909 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2911 PUSHs(sv_2mortal(newSVpvn("", 0)));
2912 PUSHs(sv_2mortal(newSVpvn("", 0)));
2918 /* This macro is used by the stacked filetest operators :
2919 * if the previous filetest failed, short-circuit and pass its value.
2920 * Else, discard it from the stack and continue. --rgs
2922 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2923 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2924 else { (void)POPs; PUTBACK; } \
2931 STACKED_FTEST_CHECK;
2932 #if defined(HAS_ACCESS) && defined(R_OK)
2933 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2935 result = access(POPpx, R_OK);
2950 if (cando(S_IRUSR, 0, &PL_statcache))
2959 STACKED_FTEST_CHECK;
2960 #if defined(HAS_ACCESS) && defined(W_OK)
2961 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2963 result = access(POPpx, W_OK);
2978 if (cando(S_IWUSR, 0, &PL_statcache))
2987 STACKED_FTEST_CHECK;
2988 #if defined(HAS_ACCESS) && defined(X_OK)
2989 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2991 result = access(POPpx, X_OK);
3006 if (cando(S_IXUSR, 0, &PL_statcache))
3015 STACKED_FTEST_CHECK;
3016 #ifdef PERL_EFF_ACCESS_R_OK
3017 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3019 result = PERL_EFF_ACCESS_R_OK(POPpx);
3034 if (cando(S_IRUSR, 1, &PL_statcache))
3043 STACKED_FTEST_CHECK;
3044 #ifdef PERL_EFF_ACCESS_W_OK
3045 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3047 result = PERL_EFF_ACCESS_W_OK(POPpx);
3062 if (cando(S_IWUSR, 1, &PL_statcache))
3071 STACKED_FTEST_CHECK;
3072 #ifdef PERL_EFF_ACCESS_X_OK
3073 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3075 result = PERL_EFF_ACCESS_X_OK(POPpx);
3090 if (cando(S_IXUSR, 1, &PL_statcache))
3099 STACKED_FTEST_CHECK;
3109 return pp_ftrowned();
3116 STACKED_FTEST_CHECK;
3121 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3131 STACKED_FTEST_CHECK;
3136 if (PL_statcache.st_size == 0)
3145 STACKED_FTEST_CHECK;
3150 #if Off_t_size > IVSIZE
3151 PUSHn(PL_statcache.st_size);
3153 PUSHi(PL_statcache.st_size);
3162 STACKED_FTEST_CHECK;
3167 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3175 STACKED_FTEST_CHECK;
3180 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3188 STACKED_FTEST_CHECK;
3193 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3201 STACKED_FTEST_CHECK;
3206 if (S_ISSOCK(PL_statcache.st_mode))
3215 STACKED_FTEST_CHECK;
3220 if (S_ISCHR(PL_statcache.st_mode))
3229 STACKED_FTEST_CHECK;
3234 if (S_ISBLK(PL_statcache.st_mode))
3243 STACKED_FTEST_CHECK;
3248 if (S_ISREG(PL_statcache.st_mode))
3257 STACKED_FTEST_CHECK;
3262 if (S_ISDIR(PL_statcache.st_mode))
3271 STACKED_FTEST_CHECK;
3276 if (S_ISFIFO(PL_statcache.st_mode))
3283 I32 result = my_lstat();
3287 if (S_ISLNK(PL_statcache.st_mode))
3297 STACKED_FTEST_CHECK;
3302 if (PL_statcache.st_mode & S_ISUID)
3313 STACKED_FTEST_CHECK;
3318 if (PL_statcache.st_mode & S_ISGID)
3329 STACKED_FTEST_CHECK;
3334 if (PL_statcache.st_mode & S_ISVTX)
3347 STACKED_FTEST_CHECK;
3349 if (PL_op->op_flags & OPf_REF)
3351 else if (isGV(TOPs))
3353 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3354 gv = (GV*)SvRV(POPs);
3356 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3358 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3359 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3360 else if (tmpsv && SvOK(tmpsv)) {
3362 char *tmps = SvPV(tmpsv, n_a);
3370 if (PerlLIO_isatty(fd))
3375 #if defined(atarist) /* this will work with atariST. Configure will
3376 make guesses for other systems. */
3377 # define FILE_base(f) ((f)->_base)
3378 # define FILE_ptr(f) ((f)->_ptr)
3379 # define FILE_cnt(f) ((f)->_cnt)
3380 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3390 register STDCHAR *s;
3397 STACKED_FTEST_CHECK;
3399 if (PL_op->op_flags & OPf_REF)
3401 else if (isGV(TOPs))
3403 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3404 gv = (GV*)SvRV(POPs);
3410 if (gv == PL_defgv) {
3412 io = GvIO(PL_statgv);
3415 goto really_filename;
3420 PL_laststatval = -1;
3421 sv_setpvn(PL_statname, "", 0);
3422 io = GvIO(PL_statgv);
3424 if (io && IoIFP(io)) {
3425 if (! PerlIO_has_base(IoIFP(io)))
3426 DIE(aTHX_ "-T and -B not implemented on filehandles");
3427 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3428 if (PL_laststatval < 0)
3430 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3431 if (PL_op->op_type == OP_FTTEXT)
3436 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3437 i = PerlIO_getc(IoIFP(io));
3439 (void)PerlIO_ungetc(IoIFP(io),i);
3441 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3443 len = PerlIO_get_bufsiz(IoIFP(io));
3444 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3445 /* sfio can have large buffers - limit to 512 */
3450 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3452 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3454 SETERRNO(EBADF,RMS_IFI);
3462 PL_laststype = OP_STAT;
3463 sv_setpv(PL_statname, SvPV(sv, n_a));
3464 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3465 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
3466 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3469 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3470 if (PL_laststatval < 0) {
3471 (void)PerlIO_close(fp);
3474 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3475 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3476 (void)PerlIO_close(fp);
3478 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3479 RETPUSHNO; /* special case NFS directories */
3480 RETPUSHYES; /* null file is anything */
3485 /* now scan s to look for textiness */
3486 /* XXX ASCII dependent code */
3488 #if defined(DOSISH) || defined(USEMYBINMODE)
3489 /* ignore trailing ^Z on short files */
3490 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3494 for (i = 0; i < len; i++, s++) {
3495 if (!*s) { /* null never allowed in text */
3500 else if (!(isPRINT(*s) || isSPACE(*s)))
3503 else if (*s & 128) {
3505 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3508 /* utf8 characters don't count as odd */
3509 if (UTF8_IS_START(*s)) {
3510 int ulen = UTF8SKIP(s);
3511 if (ulen < len - i) {
3513 for (j = 1; j < ulen; j++) {
3514 if (!UTF8_IS_CONTINUATION(s[j]))
3517 --ulen; /* loop does extra increment */
3527 *s != '\n' && *s != '\r' && *s != '\b' &&
3528 *s != '\t' && *s != '\f' && *s != 27)
3533 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3558 if( !tmps || !*tmps ) {
3559 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3560 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3562 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3567 deprecate("chdir('') or chdir(undef) as chdir()");
3568 tmps = SvPV_const(*svp, n_a);
3572 TAINT_PROPER("chdir");
3577 TAINT_PROPER("chdir");
3578 PUSHi( PerlDir_chdir(tmps) >= 0 );
3580 /* Clear the DEFAULT element of ENV so we'll get the new value
3582 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3590 dSP; dMARK; dTARGET;
3591 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3597 DIE(aTHX_ PL_no_func, "chown");
3607 TAINT_PROPER("chroot");
3608 PUSHi( chroot(tmps) >= 0 );
3611 DIE(aTHX_ PL_no_func, "chroot");
3617 dSP; dMARK; dTARGET;
3619 value = (I32)apply(PL_op->op_type, MARK, SP);
3627 dSP; dMARK; dTARGET;
3629 value = (I32)apply(PL_op->op_type, MARK, SP);
3637 dSP; dMARK; dTARGET;
3639 value = (I32)apply(PL_op->op_type, MARK, SP);
3650 const char *tmps2 = POPpconstx;
3651 const char *tmps = SvPV_nolen_const(TOPs);
3652 TAINT_PROPER("rename");
3654 anum = PerlLIO_rename(tmps, tmps2);
3656 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3657 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3660 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3661 (void)UNLINK(tmps2);
3662 if (!(anum = link(tmps, tmps2)))
3663 anum = UNLINK(tmps);
3676 const char *tmps2 = POPpconstx;
3677 const char *tmps = SvPV_nolen_const(TOPs);
3678 TAINT_PROPER("link");
3679 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3682 DIE(aTHX_ PL_no_func, "link");
3691 const char *tmps2 = POPpconstx;
3692 const char *tmps = SvPV_nolen_const(TOPs);
3693 TAINT_PROPER("symlink");
3694 SETi( symlink(tmps, tmps2) >= 0 );
3697 DIE(aTHX_ PL_no_func, "symlink");
3707 char buf[MAXPATHLEN];
3711 #ifndef INCOMPLETE_TAINTS
3715 len = readlink(tmps, buf, sizeof(buf) - 1);
3723 RETSETUNDEF; /* just pretend it's a normal file */
3727 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3729 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3731 char * const save_filename = filename;
3737 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3738 strcpy(cmdline, cmd);
3739 strcat(cmdline, " ");
3740 for (s = cmdline + strlen(cmdline); *filename; ) {
3745 myfp = PerlProc_popen(cmdline, "r");
3749 SV *tmpsv = sv_newmortal();
3750 /* Need to save/restore 'PL_rs' ?? */
3751 s = sv_gets(tmpsv, myfp, 0);
3752 (void)PerlProc_pclose(myfp);
3756 #ifdef HAS_SYS_ERRLIST
3761 /* you don't see this */
3763 #ifdef HAS_SYS_ERRLIST
3771 if (instr(s, errmsg)) {
3778 #define EACCES EPERM
3780 if (instr(s, "cannot make"))
3781 SETERRNO(EEXIST,RMS_FEX);
3782 else if (instr(s, "existing file"))
3783 SETERRNO(EEXIST,RMS_FEX);
3784 else if (instr(s, "ile exists"))
3785 SETERRNO(EEXIST,RMS_FEX);
3786 else if (instr(s, "non-exist"))
3787 SETERRNO(ENOENT,RMS_FNF);
3788 else if (instr(s, "does not exist"))
3789 SETERRNO(ENOENT,RMS_FNF);
3790 else if (instr(s, "not empty"))
3791 SETERRNO(EBUSY,SS_DEVOFFLINE);
3792 else if (instr(s, "cannot access"))
3793 SETERRNO(EACCES,RMS_PRV);
3795 SETERRNO(EPERM,RMS_PRV);
3798 else { /* some mkdirs return no failure indication */
3799 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3800 if (PL_op->op_type == OP_RMDIR)
3805 SETERRNO(EACCES,RMS_PRV); /* a guess */
3814 /* This macro removes trailing slashes from a directory name.
3815 * Different operating and file systems take differently to
3816 * trailing slashes. According to POSIX 1003.1 1996 Edition
3817 * any number of trailing slashes should be allowed.
3818 * Thusly we snip them away so that even non-conforming
3819 * systems are happy.
3820 * We should probably do this "filtering" for all
3821 * the functions that expect (potentially) directory names:
3822 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3823 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3825 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3826 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3829 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3830 (tmps) = savepvn((tmps), (len)); \
3850 TRIMSLASHES(tmps,len,copy);
3852 TAINT_PROPER("mkdir");
3854 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3856 SETi( dooneliner("mkdir", tmps) );
3857 oldumask = PerlLIO_umask(0);
3858 PerlLIO_umask(oldumask);
3859 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3873 TRIMSLASHES(tmps,len,copy);
3874 TAINT_PROPER("rmdir");
3876 SETi( PerlDir_rmdir(tmps) >= 0 );
3878 SETi( dooneliner("rmdir", tmps) );
3885 /* Directory calls. */
3889 #if defined(Direntry_t) && defined(HAS_READDIR)
3892 const char *dirname = POPpconstx;
3894 register IO *io = GvIOn(gv);
3900 PerlDir_close(IoDIRP(io));
3901 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3907 SETERRNO(EBADF,RMS_DIR);
3910 DIE(aTHX_ PL_no_dir_func, "opendir");
3916 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3917 DIE(aTHX_ PL_no_dir_func, "readdir");
3919 #if !defined(I_DIRENT) && !defined(VMS)
3920 Direntry_t *readdir (DIR *);
3925 const I32 gimme = GIMME;
3926 GV *gv = (GV *)POPs;
3927 register Direntry_t *dp;
3928 register IO *io = GvIOn(gv);
3930 if (!io || !IoDIRP(io))
3934 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3938 sv = newSVpvn(dp->d_name, dp->d_namlen);
3940 sv = newSVpv(dp->d_name, 0);
3942 #ifndef INCOMPLETE_TAINTS
3943 if (!(IoFLAGS(io) & IOf_UNTAINT))
3946 XPUSHs(sv_2mortal(sv));
3948 while (gimme == G_ARRAY);
3950 if (!dp && gimme != G_ARRAY)
3957 SETERRNO(EBADF,RMS_ISI);
3958 if (GIMME == G_ARRAY)
3967 #if defined(HAS_TELLDIR) || defined(telldir)
3969 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3970 /* XXX netbsd still seemed to.
3971 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3972 --JHI 1999-Feb-02 */
3973 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3974 long telldir (DIR *);
3977 register IO *io = GvIOn(gv);
3979 if (!io || !IoDIRP(io))
3982 PUSHi( PerlDir_tell(IoDIRP(io)) );
3986 SETERRNO(EBADF,RMS_ISI);
3989 DIE(aTHX_ PL_no_dir_func, "telldir");
3995 #if defined(HAS_SEEKDIR) || defined(seekdir)
3999 register IO *io = GvIOn(gv);
4001 if (!io || !IoDIRP(io))
4004 (void)PerlDir_seek(IoDIRP(io), along);
4009 SETERRNO(EBADF,RMS_ISI);
4012 DIE(aTHX_ PL_no_dir_func, "seekdir");
4018 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4021 register IO *io = GvIOn(gv);
4023 if (!io || !IoDIRP(io))
4026 (void)PerlDir_rewind(IoDIRP(io));
4030 SETERRNO(EBADF,RMS_ISI);
4033 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4039 #if defined(Direntry_t) && defined(HAS_READDIR)
4042 register IO *io = GvIOn(gv);
4044 if (!io || !IoDIRP(io))
4047 #ifdef VOID_CLOSEDIR
4048 PerlDir_close(IoDIRP(io));
4050 if (PerlDir_close(IoDIRP(io)) < 0) {
4051 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4060 SETERRNO(EBADF,RMS_IFI);
4063 DIE(aTHX_ PL_no_dir_func, "closedir");
4067 /* Process control. */
4077 PERL_FLUSHALL_FOR_CHILD;
4078 childpid = PerlProc_fork();
4083 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4084 SvREADONLY_off(GvSV(tmpgv));
4085 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4086 SvREADONLY_on(GvSV(tmpgv));
4088 #ifdef THREADS_HAVE_PIDS
4089 PL_ppid = (IV)getppid();
4091 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4096 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4101 PERL_FLUSHALL_FOR_CHILD;
4102 childpid = PerlProc_fork();
4108 DIE(aTHX_ PL_no_func, "fork");
4115 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4120 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4121 childpid = wait4pid(-1, &argflags, 0);
4123 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4128 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4129 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4130 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4132 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4137 DIE(aTHX_ PL_no_func, "wait");
4143 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4152 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4153 result = wait4pid(pid, &argflags, optype);
4155 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4160 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4161 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4162 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4164 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4169 DIE(aTHX_ PL_no_func, "waitpid");
4175 dSP; dMARK; dORIGMARK; dTARGET;
4182 while (++MARK <= SP) {
4183 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4188 TAINT_PROPER("system");
4190 PERL_FLUSHALL_FOR_CHILD;
4191 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4197 if (PerlProc_pipe(pp) >= 0)
4199 while ((childpid = PerlProc_fork()) == -1) {
4200 if (errno != EAGAIN) {
4205 PerlLIO_close(pp[0]);
4206 PerlLIO_close(pp[1]);
4213 Sigsave_t ihand,qhand; /* place to save signals during system() */
4217 PerlLIO_close(pp[1]);
4219 rsignal_save(SIGINT, SIG_IGN, &ihand);
4220 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4223 result = wait4pid(childpid, &status, 0);
4224 } while (result == -1 && errno == EINTR);
4226 (void)rsignal_restore(SIGINT, &ihand);
4227 (void)rsignal_restore(SIGQUIT, &qhand);
4229 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4230 do_execfree(); /* free any memory child malloced on fork */
4236 while (n < sizeof(int)) {
4237 n1 = PerlLIO_read(pp[0],
4238 (void*)(((char*)&errkid)+n),
4244 PerlLIO_close(pp[0]);
4245 if (n) { /* Error */
4246 if (n != sizeof(int))
4247 DIE(aTHX_ "panic: kid popen errno read");
4248 errno = errkid; /* Propagate errno from kid */
4249 STATUS_CURRENT = -1;
4252 PUSHi(STATUS_CURRENT);
4256 PerlLIO_close(pp[0]);
4257 #if defined(HAS_FCNTL) && defined(F_SETFD)
4258 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4261 if (PL_op->op_flags & OPf_STACKED) {
4262 SV *really = *++MARK;
4263 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4265 else if (SP - MARK != 1)
4266 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4268 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4272 #else /* ! FORK or VMS or OS/2 */
4275 if (PL_op->op_flags & OPf_STACKED) {
4276 SV *really = *++MARK;
4277 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4278 value = (I32)do_aspawn(really, MARK, SP);
4280 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4283 else if (SP - MARK != 1) {
4284 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4285 value = (I32)do_aspawn(Nullsv, MARK, SP);
4287 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4291 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4293 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4295 STATUS_NATIVE_SET(value);
4298 PUSHi(result ? value : STATUS_CURRENT);
4299 #endif /* !FORK or VMS */
4305 dSP; dMARK; dORIGMARK; dTARGET;
4311 while (++MARK <= SP) {
4312 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4317 TAINT_PROPER("exec");
4319 PERL_FLUSHALL_FOR_CHILD;
4320 if (PL_op->op_flags & OPf_STACKED) {
4321 SV *really = *++MARK;
4322 value = (I32)do_aexec(really, MARK, SP);
4324 else if (SP - MARK != 1)
4326 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4330 (void ) do_aspawn(Nullsv, MARK, SP);
4334 value = (I32)do_aexec(Nullsv, MARK, SP);
4339 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4342 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4345 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4358 dSP; dMARK; dTARGET;
4360 value = (I32)apply(PL_op->op_type, MARK, SP);
4365 DIE(aTHX_ PL_no_func, "kill");
4373 # ifdef THREADS_HAVE_PIDS
4374 if (PL_ppid != 1 && getppid() == 1)
4375 /* maybe the parent process has died. Refresh ppid cache */
4379 XPUSHi( getppid() );
4383 DIE(aTHX_ PL_no_func, "getppid");
4399 pgrp = (I32)BSD_GETPGRP(pid);
4401 if (pid != 0 && pid != PerlProc_getpid())
4402 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4408 DIE(aTHX_ PL_no_func, "getpgrp()");
4427 TAINT_PROPER("setpgrp");
4429 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4431 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4432 || (pid != 0 && pid != PerlProc_getpid()))
4434 DIE(aTHX_ "setpgrp can't take arguments");
4436 SETi( setpgrp() >= 0 );
4437 #endif /* USE_BSDPGRP */
4440 DIE(aTHX_ PL_no_func, "setpgrp()");
4446 #ifdef HAS_GETPRIORITY
4450 SETi( getpriority(which, who) );
4453 DIE(aTHX_ PL_no_func, "getpriority()");
4459 #ifdef HAS_SETPRIORITY
4464 TAINT_PROPER("setpriority");
4465 SETi( setpriority(which, who, niceval) >= 0 );
4468 DIE(aTHX_ PL_no_func, "setpriority()");
4478 XPUSHn( time(Null(Time_t*)) );
4480 XPUSHi( time(Null(Time_t*)) );
4491 (void)PerlProc_times(&PL_timesbuf);
4493 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4494 /* struct tms, though same data */
4498 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4499 if (GIMME == G_ARRAY) {
4500 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4501 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4502 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4508 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4510 if (GIMME == G_ARRAY) {
4511 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4512 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4513 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4517 DIE(aTHX_ "times not implemented");
4519 #endif /* HAS_TIMES */
4531 const struct tm *tmbuf;
4532 static const char * const dayname[] =
4533 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4534 static const char * const monname[] =
4535 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4536 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4542 when = (Time_t)SvNVx(POPs);
4544 when = (Time_t)SvIVx(POPs);
4547 if (PL_op->op_type == OP_LOCALTIME)
4548 tmbuf = localtime(&when);
4550 tmbuf = gmtime(&when);
4552 if (GIMME != G_ARRAY) {
4558 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4559 dayname[tmbuf->tm_wday],
4560 monname[tmbuf->tm_mon],
4565 tmbuf->tm_year + 1900);
4566 PUSHs(sv_2mortal(tsv));
4571 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4572 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4573 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4574 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4575 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4576 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4577 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4578 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4579 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4590 anum = alarm((unsigned int)anum);
4597 DIE(aTHX_ PL_no_func, "alarm");
4608 (void)time(&lasttime);
4613 PerlProc_sleep((unsigned int)duration);
4616 XPUSHi(when - lasttime);
4620 /* Shared memory. */
4634 return pp_shmwrite();
4639 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4640 dSP; dMARK; dTARGET;
4641 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4650 /* Message passing. */
4664 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4665 dSP; dMARK; dTARGET;
4666 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4677 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4678 dSP; dMARK; dTARGET;
4679 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4692 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4693 dSP; dMARK; dTARGET;
4694 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4701 DIE(aTHX_ "System V IPC is not implemented on this machine");
4707 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4708 dSP; dMARK; dTARGET;
4709 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4717 PUSHp(zero_but_true, ZBTLEN);
4727 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4728 dSP; dMARK; dTARGET;
4729 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4738 /* Get system info. */
4742 #ifdef HAS_GETHOSTBYNAME
4743 return pp_ghostent();
4745 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4751 #ifdef HAS_GETHOSTBYADDR
4752 return pp_ghostent();
4754 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4760 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4762 I32 which = PL_op->op_type;
4763 register char **elem;
4765 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4766 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4767 struct hostent *gethostbyname(Netdb_name_t);
4768 struct hostent *gethostent(void);
4770 struct hostent *hent;
4775 if (which == OP_GHBYNAME) {
4776 #ifdef HAS_GETHOSTBYNAME
4777 char* name = POPpbytex;
4778 hent = PerlSock_gethostbyname(name);
4780 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4783 else if (which == OP_GHBYADDR) {
4784 #ifdef HAS_GETHOSTBYADDR
4785 int addrtype = POPi;
4788 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4790 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4792 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4796 #ifdef HAS_GETHOSTENT
4797 hent = PerlSock_gethostent();
4799 DIE(aTHX_ PL_no_sock_func, "gethostent");
4802 #ifdef HOST_NOT_FOUND
4804 #ifdef USE_REENTRANT_API
4805 # ifdef USE_GETHOSTENT_ERRNO
4806 h_errno = PL_reentrant_buffer->_gethostent_errno;
4809 STATUS_NATIVE_SET(h_errno);
4813 if (GIMME != G_ARRAY) {
4814 PUSHs(sv = sv_newmortal());
4816 if (which == OP_GHBYNAME) {
4818 sv_setpvn(sv, hent->h_addr, hent->h_length);
4821 sv_setpv(sv, (char*)hent->h_name);
4827 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4828 sv_setpv(sv, (char*)hent->h_name);
4829 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4830 for (elem = hent->h_aliases; elem && *elem; elem++) {
4831 sv_catpv(sv, *elem);
4833 sv_catpvn(sv, " ", 1);
4835 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4836 sv_setiv(sv, (IV)hent->h_addrtype);
4837 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4838 len = hent->h_length;
4839 sv_setiv(sv, (IV)len);
4841 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4842 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4843 sv_setpvn(sv, *elem, len);
4846 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4848 sv_setpvn(sv, hent->h_addr, len);
4853 DIE(aTHX_ PL_no_sock_func, "gethostent");
4859 #ifdef HAS_GETNETBYNAME
4860 return pp_gnetent();
4862 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4868 #ifdef HAS_GETNETBYADDR
4869 return pp_gnetent();
4871 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4877 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4879 I32 which = PL_op->op_type;
4880 register char **elem;
4882 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4883 struct netent *getnetbyaddr(Netdb_net_t, int);
4884 struct netent *getnetbyname(Netdb_name_t);
4885 struct netent *getnetent(void);
4887 struct netent *nent;
4890 if (which == OP_GNBYNAME){
4891 #ifdef HAS_GETNETBYNAME
4892 char *name = POPpbytex;
4893 nent = PerlSock_getnetbyname(name);
4895 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4898 else if (which == OP_GNBYADDR) {
4899 #ifdef HAS_GETNETBYADDR
4900 int addrtype = POPi;
4901 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4902 nent = PerlSock_getnetbyaddr(addr, addrtype);
4904 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4908 #ifdef HAS_GETNETENT
4909 nent = PerlSock_getnetent();
4911 DIE(aTHX_ PL_no_sock_func, "getnetent");
4914 #ifdef HOST_NOT_FOUND
4916 #ifdef USE_REENTRANT_API
4917 # ifdef USE_GETNETENT_ERRNO
4918 h_errno = PL_reentrant_buffer->_getnetent_errno;
4921 STATUS_NATIVE_SET(h_errno);
4926 if (GIMME != G_ARRAY) {
4927 PUSHs(sv = sv_newmortal());
4929 if (which == OP_GNBYNAME)
4930 sv_setiv(sv, (IV)nent->n_net);
4932 sv_setpv(sv, nent->n_name);
4938 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4939 sv_setpv(sv, nent->n_name);
4940 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4941 for (elem = nent->n_aliases; elem && *elem; elem++) {
4942 sv_catpv(sv, *elem);
4944 sv_catpvn(sv, " ", 1);
4946 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4947 sv_setiv(sv, (IV)nent->n_addrtype);
4948 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4949 sv_setiv(sv, (IV)nent->n_net);
4954 DIE(aTHX_ PL_no_sock_func, "getnetent");
4960 #ifdef HAS_GETPROTOBYNAME
4961 return pp_gprotoent();
4963 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4969 #ifdef HAS_GETPROTOBYNUMBER
4970 return pp_gprotoent();
4972 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4978 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4980 I32 which = PL_op->op_type;
4981 register char **elem;
4983 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4984 struct protoent *getprotobyname(Netdb_name_t);
4985 struct protoent *getprotobynumber(int);
4986 struct protoent *getprotoent(void);
4988 struct protoent *pent;
4991 if (which == OP_GPBYNAME) {
4992 #ifdef HAS_GETPROTOBYNAME
4993 char* name = POPpbytex;
4994 pent = PerlSock_getprotobyname(name);
4996 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4999 else if (which == OP_GPBYNUMBER) {
5000 #ifdef HAS_GETPROTOBYNUMBER
5002 pent = PerlSock_getprotobynumber(number);
5004 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5008 #ifdef HAS_GETPROTOENT
5009 pent = PerlSock_getprotoent();
5011 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5015 if (GIMME != G_ARRAY) {
5016 PUSHs(sv = sv_newmortal());
5018 if (which == OP_GPBYNAME)
5019 sv_setiv(sv, (IV)pent->p_proto);
5021 sv_setpv(sv, pent->p_name);
5027 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5028 sv_setpv(sv, pent->p_name);
5029 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5030 for (elem = pent->p_aliases; elem && *elem; elem++) {
5031 sv_catpv(sv, *elem);
5033 sv_catpvn(sv, " ", 1);
5035 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5036 sv_setiv(sv, (IV)pent->p_proto);
5041 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5047 #ifdef HAS_GETSERVBYNAME
5048 return pp_gservent();
5050 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5056 #ifdef HAS_GETSERVBYPORT
5057 return pp_gservent();
5059 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5065 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5067 I32 which = PL_op->op_type;
5068 register char **elem;
5070 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5071 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5072 struct servent *getservbyport(int, Netdb_name_t);
5073 struct servent *getservent(void);
5075 struct servent *sent;
5078 if (which == OP_GSBYNAME) {
5079 #ifdef HAS_GETSERVBYNAME
5080 char *proto = POPpbytex;
5081 char *name = POPpbytex;
5083 if (proto && !*proto)
5086 sent = PerlSock_getservbyname(name, proto);
5088 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5091 else if (which == OP_GSBYPORT) {
5092 #ifdef HAS_GETSERVBYPORT
5093 char *proto = POPpbytex;
5094 unsigned short port = (unsigned short)POPu;
5096 if (proto && !*proto)
5100 port = PerlSock_htons(port);
5102 sent = PerlSock_getservbyport(port, proto);
5104 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5108 #ifdef HAS_GETSERVENT
5109 sent = PerlSock_getservent();
5111 DIE(aTHX_ PL_no_sock_func, "getservent");
5115 if (GIMME != G_ARRAY) {
5116 PUSHs(sv = sv_newmortal());
5118 if (which == OP_GSBYNAME) {
5120 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5122 sv_setiv(sv, (IV)(sent->s_port));
5126 sv_setpv(sv, sent->s_name);
5132 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5133 sv_setpv(sv, sent->s_name);
5134 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5135 for (elem = sent->s_aliases; elem && *elem; elem++) {
5136 sv_catpv(sv, *elem);
5138 sv_catpvn(sv, " ", 1);
5140 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5142 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5144 sv_setiv(sv, (IV)(sent->s_port));
5146 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5147 sv_setpv(sv, sent->s_proto);
5152 DIE(aTHX_ PL_no_sock_func, "getservent");
5158 #ifdef HAS_SETHOSTENT
5160 PerlSock_sethostent(TOPi);
5163 DIE(aTHX_ PL_no_sock_func, "sethostent");
5169 #ifdef HAS_SETNETENT
5171 PerlSock_setnetent(TOPi);
5174 DIE(aTHX_ PL_no_sock_func, "setnetent");
5180 #ifdef HAS_SETPROTOENT
5182 PerlSock_setprotoent(TOPi);
5185 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5191 #ifdef HAS_SETSERVENT
5193 PerlSock_setservent(TOPi);
5196 DIE(aTHX_ PL_no_sock_func, "setservent");
5202 #ifdef HAS_ENDHOSTENT
5204 PerlSock_endhostent();
5208 DIE(aTHX_ PL_no_sock_func, "endhostent");
5214 #ifdef HAS_ENDNETENT
5216 PerlSock_endnetent();
5220 DIE(aTHX_ PL_no_sock_func, "endnetent");
5226 #ifdef HAS_ENDPROTOENT
5228 PerlSock_endprotoent();
5232 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5238 #ifdef HAS_ENDSERVENT
5240 PerlSock_endservent();
5244 DIE(aTHX_ PL_no_sock_func, "endservent");
5253 DIE(aTHX_ PL_no_func, "getpwnam");
5262 DIE(aTHX_ PL_no_func, "getpwuid");
5270 I32 which = PL_op->op_type;
5273 struct passwd *pwent = NULL;
5275 * We currently support only the SysV getsp* shadow password interface.
5276 * The interface is declared in <shadow.h> and often one needs to link
5277 * with -lsecurity or some such.
5278 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5281 * AIX getpwnam() is clever enough to return the encrypted password
5282 * only if the caller (euid?) is root.
5284 * There are at least three other shadow password APIs. Many platforms
5285 * seem to contain more than one interface for accessing the shadow
5286 * password databases, possibly for compatibility reasons.
5287 * The getsp*() is by far he simplest one, the other two interfaces
5288 * are much more complicated, but also very similar to each other.
5293 * struct pr_passwd *getprpw*();
5294 * The password is in
5295 * char getprpw*(...).ufld.fd_encrypt[]
5296 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5301 * struct es_passwd *getespw*();
5302 * The password is in
5303 * char *(getespw*(...).ufld.fd_encrypt)
5304 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5307 * struct userpw *getuserpw();
5308 * The password is in
5309 * char *(getuserpw(...)).spw_upw_passwd
5310 * (but the de facto standard getpwnam() should work okay)
5312 * Mention I_PROT here so that Configure probes for it.
5314 * In HP-UX for getprpw*() the manual page claims that one should include
5315 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5316 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5317 * and pp_sys.c already includes <shadow.h> if there is such.
5319 * Note that <sys/security.h> is already probed for, but currently
5320 * it is only included in special cases.
5322 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5323 * be preferred interface, even though also the getprpw*() interface
5324 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5325 * One also needs to call set_auth_parameters() in main() before
5326 * doing anything else, whether one is using getespw*() or getprpw*().
5328 * Note that accessing the shadow databases can be magnitudes
5329 * slower than accessing the standard databases.
5334 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5335 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5336 * the pw_comment is left uninitialized. */
5337 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5343 char* name = POPpbytex;
5344 pwent = getpwnam(name);
5350 pwent = getpwuid(uid);
5354 # ifdef HAS_GETPWENT
5356 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5357 if (pwent) pwent = getpwnam(pwent->pw_name);
5360 DIE(aTHX_ PL_no_func, "getpwent");
5366 if (GIMME != G_ARRAY) {
5367 PUSHs(sv = sv_newmortal());
5369 if (which == OP_GPWNAM)
5370 # if Uid_t_sign <= 0
5371 sv_setiv(sv, (IV)pwent->pw_uid);
5373 sv_setuv(sv, (UV)pwent->pw_uid);
5376 sv_setpv(sv, pwent->pw_name);
5382 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5383 sv_setpv(sv, pwent->pw_name);
5385 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5387 /* If we have getspnam(), we try to dig up the shadow
5388 * password. If we are underprivileged, the shadow
5389 * interface will set the errno to EACCES or similar,
5390 * and return a null pointer. If this happens, we will
5391 * use the dummy password (usually "*" or "x") from the
5392 * standard password database.
5394 * In theory we could skip the shadow call completely
5395 * if euid != 0 but in practice we cannot know which
5396 * security measures are guarding the shadow databases
5397 * on a random platform.
5399 * Resist the urge to use additional shadow interfaces.
5400 * Divert the urge to writing an extension instead.
5403 /* Some AIX setups falsely(?) detect some getspnam(), which
5404 * has a different API than the Solaris/IRIX one. */
5405 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5407 struct spwd *spwent;
5408 int saverrno; /* Save and restore errno so that
5409 * underprivileged attempts seem
5410 * to have never made the unsccessful
5411 * attempt to retrieve the shadow password. */
5414 spwent = getspnam(pwent->pw_name);
5416 if (spwent && spwent->sp_pwdp)
5417 sv_setpv(sv, spwent->sp_pwdp);
5421 if (!SvPOK(sv)) /* Use the standard password, then. */
5422 sv_setpv(sv, pwent->pw_passwd);
5425 # ifndef INCOMPLETE_TAINTS
5426 /* passwd is tainted because user himself can diddle with it.
5427 * admittedly not much and in a very limited way, but nevertheless. */
5431 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5432 # if Uid_t_sign <= 0
5433 sv_setiv(sv, (IV)pwent->pw_uid);
5435 sv_setuv(sv, (UV)pwent->pw_uid);
5438 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5439 # if Uid_t_sign <= 0
5440 sv_setiv(sv, (IV)pwent->pw_gid);
5442 sv_setuv(sv, (UV)pwent->pw_gid);
5444 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5445 * because of the poor interface of the Perl getpw*(),
5446 * not because there's some standard/convention saying so.
5447 * A better interface would have been to return a hash,
5448 * but we are accursed by our history, alas. --jhi. */
5449 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5451 sv_setiv(sv, (IV)pwent->pw_change);
5454 sv_setiv(sv, (IV)pwent->pw_quota);
5457 sv_setpv(sv, pwent->pw_age);
5462 /* pw_class and pw_comment are mutually exclusive--.
5463 * see the above note for pw_change, pw_quota, and pw_age. */
5464 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5466 sv_setpv(sv, pwent->pw_class);
5469 sv_setpv(sv, pwent->pw_comment);
5473 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5475 sv_setpv(sv, pwent->pw_gecos);
5477 # ifndef INCOMPLETE_TAINTS
5478 /* pw_gecos is tainted because user himself can diddle with it. */
5482 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5483 sv_setpv(sv, pwent->pw_dir);
5485 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5486 sv_setpv(sv, pwent->pw_shell);
5487 # ifndef INCOMPLETE_TAINTS
5488 /* pw_shell is tainted because user himself can diddle with it. */
5493 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5494 sv_setiv(sv, (IV)pwent->pw_expire);
5499 DIE(aTHX_ PL_no_func, "getpwent");
5505 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5510 DIE(aTHX_ PL_no_func, "setpwent");
5516 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5521 DIE(aTHX_ PL_no_func, "endpwent");
5530 DIE(aTHX_ PL_no_func, "getgrnam");
5539 DIE(aTHX_ PL_no_func, "getgrgid");
5547 I32 which = PL_op->op_type;
5548 register char **elem;
5550 struct group *grent;
5553 if (which == OP_GGRNAM) {
5554 char* name = POPpbytex;
5555 grent = (struct group *)getgrnam(name);
5557 else if (which == OP_GGRGID) {
5559 grent = (struct group *)getgrgid(gid);
5563 grent = (struct group *)getgrent();
5565 DIE(aTHX_ PL_no_func, "getgrent");
5569 if (GIMME != G_ARRAY) {
5570 PUSHs(sv = sv_newmortal());
5572 if (which == OP_GGRNAM)
5573 sv_setiv(sv, (IV)grent->gr_gid);
5575 sv_setpv(sv, grent->gr_name);
5581 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5582 sv_setpv(sv, grent->gr_name);
5584 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5586 sv_setpv(sv, grent->gr_passwd);
5589 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5590 sv_setiv(sv, (IV)grent->gr_gid);
5592 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5593 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5594 /* In UNICOS/mk (_CRAYMPP) the multithreading
5595 * versions (getgrnam_r, getgrgid_r)
5596 * seem to return an illegal pointer
5597 * as the group members list, gr_mem.
5598 * getgrent() doesn't even have a _r version
5599 * but the gr_mem is poisonous anyway.
5600 * So yes, you cannot get the list of group
5601 * members if building multithreaded in UNICOS/mk. */
5602 for (elem = grent->gr_mem; elem && *elem; elem++) {
5603 sv_catpv(sv, *elem);
5605 sv_catpvn(sv, " ", 1);
5612 DIE(aTHX_ PL_no_func, "getgrent");
5618 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5623 DIE(aTHX_ PL_no_func, "setgrent");
5629 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5634 DIE(aTHX_ PL_no_func, "endgrent");
5644 if (!(tmps = PerlProc_getlogin()))
5646 PUSHp(tmps, strlen(tmps));
5649 DIE(aTHX_ PL_no_func, "getlogin");
5653 /* Miscellaneous. */
5658 dSP; dMARK; dORIGMARK; dTARGET;
5659 register I32 items = SP - MARK;
5660 unsigned long a[20];
5666 while (++MARK <= SP) {
5667 if (SvTAINTED(*MARK)) {
5673 TAINT_PROPER("syscall");
5676 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5677 * or where sizeof(long) != sizeof(char*). But such machines will
5678 * not likely have syscall implemented either, so who cares?
5680 while (++MARK <= SP) {
5681 if (SvNIOK(*MARK) || !i)
5682 a[i++] = SvIV(*MARK);
5683 else if (*MARK == &PL_sv_undef)
5686 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5692 DIE(aTHX_ "Too many args to syscall");
5694 DIE(aTHX_ "Too few args to syscall");
5696 retval = syscall(a[0]);
5699 retval = syscall(a[0],a[1]);
5702 retval = syscall(a[0],a[1],a[2]);
5705 retval = syscall(a[0],a[1],a[2],a[3]);
5708 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5711 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5714 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5717 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5721 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5724 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5727 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5731 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5735 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5739 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5740 a[10],a[11],a[12],a[13]);
5742 #endif /* atarist */
5748 DIE(aTHX_ PL_no_func, "syscall");
5752 #ifdef FCNTL_EMULATE_FLOCK
5754 /* XXX Emulate flock() with fcntl().
5755 What's really needed is a good file locking module.
5759 fcntl_emulate_flock(int fd, int operation)
5763 switch (operation & ~LOCK_NB) {
5765 flock.l_type = F_RDLCK;
5768 flock.l_type = F_WRLCK;
5771 flock.l_type = F_UNLCK;
5777 flock.l_whence = SEEK_SET;
5778 flock.l_start = flock.l_len = (Off_t)0;
5780 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5783 #endif /* FCNTL_EMULATE_FLOCK */
5785 #ifdef LOCKF_EMULATE_FLOCK
5787 /* XXX Emulate flock() with lockf(). This is just to increase
5788 portability of scripts. The calls are not completely
5789 interchangeable. What's really needed is a good file
5793 /* The lockf() constants might have been defined in <unistd.h>.
5794 Unfortunately, <unistd.h> causes troubles on some mixed
5795 (BSD/POSIX) systems, such as SunOS 4.1.3.
5797 Further, the lockf() constants aren't POSIX, so they might not be
5798 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5799 just stick in the SVID values and be done with it. Sigh.
5803 # define F_ULOCK 0 /* Unlock a previously locked region */
5806 # define F_LOCK 1 /* Lock a region for exclusive use */
5809 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5812 # define F_TEST 3 /* Test a region for other processes locks */
5816 lockf_emulate_flock(int fd, int operation)
5822 /* flock locks entire file so for lockf we need to do the same */
5824 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5825 if (pos > 0) /* is seekable and needs to be repositioned */
5826 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5827 pos = -1; /* seek failed, so don't seek back afterwards */
5830 switch (operation) {
5832 /* LOCK_SH - get a shared lock */
5834 /* LOCK_EX - get an exclusive lock */
5836 i = lockf (fd, F_LOCK, 0);
5839 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5840 case LOCK_SH|LOCK_NB:
5841 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5842 case LOCK_EX|LOCK_NB:
5843 i = lockf (fd, F_TLOCK, 0);
5845 if ((errno == EAGAIN) || (errno == EACCES))
5846 errno = EWOULDBLOCK;
5849 /* LOCK_UN - unlock (non-blocking is a no-op) */
5851 case LOCK_UN|LOCK_NB:
5852 i = lockf (fd, F_ULOCK, 0);
5855 /* Default - can't decipher operation */
5862 if (pos > 0) /* need to restore position of the handle */
5863 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5868 #endif /* LOCKF_EMULATE_FLOCK */
5872 * c-indentation-style: bsd
5874 * indent-tabs-mode: t
5877 * ex: set ts=8 sts=4 sw=4 noet: