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");
324 const char *tmps = POPpconstx;
325 const I32 gimme = GIMME_V;
326 const char *mode = "r";
329 if (PL_op->op_private & OPpOPEN_IN_RAW)
331 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
333 fp = PerlProc_popen((char*)tmps, (char *)mode);
335 const char *type = NULL;
336 if (PL_curcop->cop_io) {
337 type = SvPV_nolen_const(PL_curcop->cop_io);
340 PerlIO_apply_layers(aTHX_ fp,mode,type);
342 if (gimme == G_VOID) {
344 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
348 else if (gimme == G_SCALAR) {
351 PL_rs = &PL_sv_undef;
352 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
353 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
365 if (sv_gets(sv, fp, 0) == Nullch) {
369 XPUSHs(sv_2mortal(sv));
370 if (SvLEN(sv) - SvCUR(sv) > 20) {
371 SvPV_shrink_to_cur(sv);
376 STATUS_NATIVE_SET(PerlProc_pclose(fp));
377 TAINT; /* "I believe that this is not gratuitous!" */
380 STATUS_NATIVE_SET(-1);
381 if (gimme == G_SCALAR)
392 tryAMAGICunTARGET(iter, -1);
394 /* Note that we only ever get here if File::Glob fails to load
395 * without at the same time croaking, for some reason, or if
396 * perl was built with PERL_EXTERNAL_GLOB */
403 * The external globbing program may use things we can't control,
404 * so for security reasons we must assume the worst.
407 taint_proper(PL_no_security, "glob");
411 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
412 PL_last_in_gv = (GV*)*PL_stack_sp--;
414 SAVESPTR(PL_rs); /* This is not permanent, either. */
415 PL_rs = sv_2mortal(newSVpvn("\000", 1));
418 *SvPVX(PL_rs) = '\n';
422 result = do_readline();
429 PL_last_in_gv = cGVOP_gv;
430 return do_readline();
439 if (SP - MARK != 1) {
441 do_join(TARG, &PL_sv_no, MARK, SP);
448 tmps = SvPV_const(tmpsv, len);
449 if ((!tmps || !len) && PL_errgv) {
451 SvUPGRADE(error, SVt_PV);
452 if (SvPOK(error) && SvCUR(error))
453 sv_catpv(error, "\t...caught");
455 tmps = SvPV_const(tmpsv, len);
458 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
460 Perl_warn(aTHX_ "%"SVf, tmpsv);
472 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
474 if (SP - MARK != 1) {
476 do_join(TARG, &PL_sv_no, MARK, SP);
478 tmps = SvPV_const(tmpsv, len);
484 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
488 SvUPGRADE(error, SVt_PV);
489 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
491 SvSetSV(error,tmpsv);
492 else if (sv_isobject(error)) {
493 HV *stash = SvSTASH(SvRV(error));
494 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
496 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
497 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
504 call_sv((SV*)GvCV(gv),
505 G_SCALAR|G_EVAL|G_KEEPERR);
506 sv_setsv(error,*PL_stack_sp--);
512 if (SvPOK(error) && SvCUR(error))
513 sv_catpv(error, "\t...propagated");
515 tmps = SvPV_const(tmpsv, len);
519 tmpsv = sv_2mortal(newSVpvn("Died", 4));
521 DIE(aTHX_ "%"SVf, tmpsv);
541 DIE(aTHX_ PL_no_usym, "filehandle");
542 if ((io = GvIOp(gv)))
543 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
545 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
546 /* Method's args are same as ours ... */
547 /* ... except handle is replaced by the object */
548 *MARK-- = SvTIED_obj((SV*)io, mg);
552 call_method("OPEN", G_SCALAR);
565 tmps = SvPV_const(sv, len);
566 ok = do_openn(gv, (char *)tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
569 PUSHi( (I32)PL_forkprocess );
570 else if (PL_forkprocess == 0) /* we are a new child */
589 if (gv && (io = GvIO(gv))
590 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
593 XPUSHs(SvTIED_obj((SV*)io, mg));
596 call_method("CLOSE", G_SCALAR);
602 PUSHs(boolSV(do_close(gv, TRUE)));
622 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
623 DIE(aTHX_ PL_no_usym, "filehandle");
628 do_close(rgv, FALSE);
630 do_close(wgv, FALSE);
632 if (PerlProc_pipe(fd) < 0)
635 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
636 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
637 IoOFP(rstio) = IoIFP(rstio);
638 IoIFP(wstio) = IoOFP(wstio);
639 IoTYPE(rstio) = IoTYPE_RDONLY;
640 IoTYPE(wstio) = IoTYPE_WRONLY;
642 if (!IoIFP(rstio) || !IoOFP(wstio)) {
643 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
644 else PerlLIO_close(fd[0]);
645 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
646 else PerlLIO_close(fd[1]);
649 #if defined(HAS_FCNTL) && defined(F_SETFD)
650 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
651 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
658 DIE(aTHX_ PL_no_func, "pipe");
674 if (gv && (io = GvIO(gv))
675 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
678 XPUSHs(SvTIED_obj((SV*)io, mg));
681 call_method("FILENO", G_SCALAR);
687 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
688 /* Can't do this because people seem to do things like
689 defined(fileno($foo)) to check whether $foo is a valid fh.
690 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
691 report_evil_fh(gv, io, PL_op->op_type);
696 PUSHi(PerlIO_fileno(fp));
708 anum = PerlLIO_umask(0);
709 (void)PerlLIO_umask(anum);
712 anum = PerlLIO_umask(POPi);
713 TAINT_PROPER("umask");
716 /* Only DIE if trying to restrict permissions on "user" (self).
717 * Otherwise it's harmless and more useful to just return undef
718 * since 'group' and 'other' concepts probably don't exist here. */
719 if (MAXARG >= 1 && (POPi & 0700))
720 DIE(aTHX_ "umask not implemented");
721 XPUSHs(&PL_sv_undef);
743 if (gv && (io = GvIO(gv))
744 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
747 XPUSHs(SvTIED_obj((SV*)io, mg));
752 call_method("BINMODE", G_SCALAR);
759 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
760 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
761 report_evil_fh(gv, io, PL_op->op_type);
762 SETERRNO(EBADF,RMS_IFI);
767 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
768 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
769 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
770 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
771 mode_from_discipline(discp),
772 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
793 const I32 markoff = MARK - PL_stack_base;
794 const char *methname;
795 int how = PERL_MAGIC_tied;
799 switch(SvTYPE(varsv)) {
801 methname = "TIEHASH";
802 HvEITER_set((HV *)varsv, 0);
805 methname = "TIEARRAY";
808 #ifdef GV_UNIQUE_CHECK
809 if (GvUNIQUE((GV*)varsv)) {
810 Perl_croak(aTHX_ "Attempt to tie unique GV");
813 methname = "TIEHANDLE";
814 how = PERL_MAGIC_tiedscalar;
815 /* For tied filehandles, we apply tiedscalar magic to the IO
816 slot of the GP rather than the GV itself. AMS 20010812 */
818 GvIOp(varsv) = newIO();
819 varsv = (SV *)GvIOp(varsv);
822 methname = "TIESCALAR";
823 how = PERL_MAGIC_tiedscalar;
827 if (sv_isobject(*MARK)) {
829 PUSHSTACKi(PERLSI_MAGIC);
831 EXTEND(SP,(I32)items);
835 call_method(methname, G_SCALAR);
838 /* Not clear why we don't call call_method here too.
839 * perhaps to get different error message ?
841 stash = gv_stashsv(*MARK, FALSE);
842 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
843 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
847 PUSHSTACKi(PERLSI_MAGIC);
849 EXTEND(SP,(I32)items);
853 call_sv((SV*)GvCV(gv), G_SCALAR);
859 if (sv_isobject(sv)) {
860 sv_unmagic(varsv, how);
861 /* Croak if a self-tie on an aggregate is attempted. */
862 if (varsv == SvRV(sv) &&
863 (SvTYPE(varsv) == SVt_PVAV ||
864 SvTYPE(varsv) == SVt_PVHV))
866 "Self-ties of arrays and hashes are not supported");
867 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
870 SP = PL_stack_base + markoff;
880 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
881 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
883 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
886 if ((mg = SvTIED_mg(sv, how))) {
887 SV *obj = SvRV(SvTIED_obj(sv, mg));
891 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
892 isGV(gv) && (cv = GvCV(gv))) {
894 XPUSHs(SvTIED_obj((SV*)gv, mg));
895 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
898 call_sv((SV *)cv, G_VOID);
902 else if (ckWARN(WARN_UNTIE)) {
903 if (mg && SvREFCNT(obj) > 1)
904 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
905 "untie attempted while %"UVuf" inner references still exist",
906 (UV)SvREFCNT(obj) - 1 ) ;
910 sv_unmagic(sv, how) ;
919 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
920 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
922 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
925 if ((mg = SvTIED_mg(sv, how))) {
926 SV *osv = SvTIED_obj(sv, mg);
927 if (osv == mg->mg_obj)
928 osv = sv_mortalcopy(osv);
946 sv = sv_mortalcopy(&PL_sv_no);
947 sv_setpv(sv, "AnyDBM_File");
948 stash = gv_stashsv(sv, FALSE);
949 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
951 require_pv("AnyDBM_File.pm");
953 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
954 DIE(aTHX_ "No dbm on this machine");
964 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
966 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
969 call_sv((SV*)GvCV(gv), G_SCALAR);
972 if (!sv_isobject(TOPs)) {
977 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
980 call_sv((SV*)GvCV(gv), G_SCALAR);
984 if (sv_isobject(TOPs)) {
985 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
986 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1008 struct timeval timebuf;
1009 struct timeval *tbuf = &timebuf;
1012 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1017 # if BYTEORDER & 0xf0000
1018 # define ORDERBYTE (0x88888888 - BYTEORDER)
1020 # define ORDERBYTE (0x4444 - BYTEORDER)
1026 for (i = 1; i <= 3; i++) {
1034 /* little endians can use vecs directly */
1035 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1042 masksize = NFDBITS / NBBY;
1044 masksize = sizeof(long); /* documented int, everyone seems to use long */
1046 Zero(&fd_sets[0], 4, char*);
1049 # if SELECT_MIN_BITS == 1
1050 growsize = sizeof(fd_set);
1052 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1053 # undef SELECT_MIN_BITS
1054 # define SELECT_MIN_BITS __FD_SETSIZE
1056 /* If SELECT_MIN_BITS is greater than one we most probably will want
1057 * to align the sizes with SELECT_MIN_BITS/8 because for example
1058 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1059 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1060 * on (sets/tests/clears bits) is 32 bits. */
1061 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1069 timebuf.tv_sec = (long)value;
1070 value -= (NV)timebuf.tv_sec;
1071 timebuf.tv_usec = (long)(value * 1000000.0);
1074 tbuf = Null(struct timeval*);
1076 for (i = 1; i <= 3; i++) {
1082 else if (!SvPOK(sv))
1083 SvPV_force_nolen(sv); /* force string conversion */
1086 Sv_Grow(sv, growsize);
1090 while (++j <= growsize) {
1094 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1096 New(403, fd_sets[i], growsize, char);
1097 for (offset = 0; offset < growsize; offset += masksize) {
1098 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1099 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1102 fd_sets[i] = SvPVX(sv);
1106 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1107 /* Can't make just the (void*) conditional because that would be
1108 * cpp #if within cpp macro, and not all compilers like that. */
1109 nfound = PerlSock_select(
1111 (Select_fd_set_t) fd_sets[1],
1112 (Select_fd_set_t) fd_sets[2],
1113 (Select_fd_set_t) fd_sets[3],
1114 (void*) tbuf); /* Workaround for compiler bug. */
1116 nfound = PerlSock_select(
1118 (Select_fd_set_t) fd_sets[1],
1119 (Select_fd_set_t) fd_sets[2],
1120 (Select_fd_set_t) fd_sets[3],
1123 for (i = 1; i <= 3; i++) {
1126 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1128 for (offset = 0; offset < growsize; offset += masksize) {
1129 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1130 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1132 Safefree(fd_sets[i]);
1139 PUSHs(&PL_sv_undef);
1142 if (GIMME == G_ARRAY && tbuf) {
1143 value = (NV)(timebuf.tv_sec) +
1144 (NV)(timebuf.tv_usec) / 1000000.0;
1145 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1146 sv_setnv(sv, value);
1150 DIE(aTHX_ "select not implemented");
1155 Perl_setdefout(pTHX_ GV *gv)
1158 (void)SvREFCNT_inc(gv);
1160 SvREFCNT_dec(PL_defoutgv);
1170 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1172 egv = GvEGV(PL_defoutgv);
1177 XPUSHs(&PL_sv_undef);
1179 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1180 if (gvp && *gvp == egv) {
1181 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1185 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1190 if (!GvIO(newdefout))
1191 gv_IOadd(newdefout);
1192 setdefout(newdefout);
1210 if (gv && (io = GvIO(gv))
1211 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1213 const I32 gimme = GIMME_V;
1215 XPUSHs(SvTIED_obj((SV*)io, mg));
1218 call_method("GETC", gimme);
1221 if (gimme == G_SCALAR)
1222 SvSetMagicSV_nosteal(TARG, TOPs);
1225 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1226 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1227 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1228 report_evil_fh(gv, io, PL_op->op_type);
1229 SETERRNO(EBADF,RMS_IFI);
1233 sv_setpvn(TARG, " ", 1);
1234 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1235 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1236 /* Find out how many bytes the char needs */
1237 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1240 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1241 SvCUR_set(TARG,1+len);
1251 return pp_sysread();
1255 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1258 register PERL_CONTEXT *cx;
1259 const I32 gimme = GIMME_V;
1264 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1266 cx->blk_sub.retop = retop;
1267 PAD_SET_CUR(CvPADLIST(cv), 1);
1269 setdefout(gv); /* locally select filehandle so $% et al work */
1301 SV * const tmpsv = sv_newmortal();
1303 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1304 name = SvPV_nolen_const(tmpsv);
1306 DIE(aTHX_ "Undefined format \"%s\" called", name);
1308 DIE(aTHX_ "Not a format reference");
1311 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1313 IoFLAGS(io) &= ~IOf_DIDTOP;
1314 return doform(cv,gv,PL_op->op_next);
1320 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1321 register IO *io = GvIOp(gv);
1322 PerlIO *ofp = IoOFP(io);
1326 register PERL_CONTEXT *cx;
1328 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1329 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1332 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1333 PL_formtarget != PL_toptarget)
1337 if (!IoTOP_GV(io)) {
1341 if (!IoTOP_NAME(io)) {
1342 if (!IoFMT_NAME(io))
1343 IoFMT_NAME(io) = savepv(GvNAME(gv));
1344 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1345 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1346 if ((topgv && GvFORM(topgv)) ||
1347 !gv_fetchpv("top",FALSE,SVt_PVFM))
1348 IoTOP_NAME(io) = savesvpv(topname);
1350 IoTOP_NAME(io) = savepvn("top", 3);
1352 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1353 if (!topgv || !GvFORM(topgv)) {
1354 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1357 IoTOP_GV(io) = topgv;
1359 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1360 I32 lines = IoLINES_LEFT(io);
1361 const char *s = SvPVX_const(PL_formtarget);
1362 if (lines <= 0) /* Yow, header didn't even fit!!! */
1364 while (lines-- > 0) {
1365 s = strchr(s, '\n');
1371 const STRLEN save = SvCUR(PL_formtarget);
1372 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1373 do_print(PL_formtarget, ofp);
1374 SvCUR_set(PL_formtarget, save);
1375 sv_chop(PL_formtarget, s);
1376 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1379 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1380 do_print(PL_formfeed, ofp);
1381 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1383 PL_formtarget = PL_toptarget;
1384 IoFLAGS(io) |= IOf_DIDTOP;
1387 DIE(aTHX_ "bad top format reference");
1390 SV * const sv = sv_newmortal();
1392 gv_efullname4(sv, fgv, Nullch, FALSE);
1393 name = SvPV_nolen_const(sv);
1395 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1399 DIE(aTHX_ "Undefined top format called");
1402 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1403 return doform(cv,gv,PL_op);
1407 POPBLOCK(cx,PL_curpm);
1413 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1415 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1416 else if (ckWARN(WARN_CLOSED))
1417 report_evil_fh(gv, io, PL_op->op_type);
1422 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1423 if (ckWARN(WARN_IO))
1424 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1426 if (!do_print(PL_formtarget, fp))
1429 FmLINES(PL_formtarget) = 0;
1430 SvCUR_set(PL_formtarget, 0);
1431 *SvEND(PL_formtarget) = '\0';
1432 if (IoFLAGS(io) & IOf_FLUSH)
1433 (void)PerlIO_flush(fp);
1438 PL_formtarget = PL_bodytarget;
1440 return cx->blk_sub.retop;
1445 dVAR; dSP; dMARK; dORIGMARK;
1452 if (PL_op->op_flags & OPf_STACKED)
1457 if (gv && (io = GvIO(gv))
1458 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1460 if (MARK == ORIGMARK) {
1463 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1467 *MARK = SvTIED_obj((SV*)io, mg);
1470 call_method("PRINTF", G_SCALAR);
1473 MARK = ORIGMARK + 1;
1480 if (!(io = GvIO(gv))) {
1481 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1482 report_evil_fh(gv, io, PL_op->op_type);
1483 SETERRNO(EBADF,RMS_IFI);
1486 else if (!(fp = IoOFP(io))) {
1487 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1489 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1490 else if (ckWARN(WARN_CLOSED))
1491 report_evil_fh(gv, io, PL_op->op_type);
1493 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1497 do_sprintf(sv, SP - MARK, MARK + 1);
1498 if (!do_print(sv, fp))
1501 if (IoFLAGS(io) & IOf_FLUSH)
1502 if (PerlIO_flush(fp) == EOF)
1513 PUSHs(&PL_sv_undef);
1524 const int perm = (MAXARG > 3) ? POPi : 0666;
1525 const int mode = POPi;
1530 /* Need TIEHANDLE method ? */
1532 tmps = SvPV_const(sv, len);
1533 /* FIXME? do_open should do const */
1534 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
1535 IoLINES(GvIOp(gv)) = 0;
1539 PUSHs(&PL_sv_undef);
1546 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1553 Sock_size_t bufsize;
1562 bool charstart = FALSE;
1563 STRLEN charskip = 0;
1567 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1568 && gv && (io = GvIO(gv))
1569 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1574 *MARK = SvTIED_obj((SV*)io, mg);
1576 call_method("READ", G_SCALAR);
1589 sv_setpvn(bufsv, "", 0);
1590 length = SvIVx(*++MARK);
1593 offset = SvIVx(*++MARK);
1597 if (!io || !IoIFP(io)) {
1598 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1599 report_evil_fh(gv, io, PL_op->op_type);
1600 SETERRNO(EBADF,RMS_IFI);
1603 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1604 buffer = SvPVutf8_force(bufsv, blen);
1605 /* UTF-8 may not have been set if they are all low bytes */
1610 buffer = SvPV_force(bufsv, blen);
1611 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1614 DIE(aTHX_ "Negative length");
1622 if (PL_op->op_type == OP_RECV) {
1623 char namebuf[MAXPATHLEN];
1624 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1625 bufsize = sizeof (struct sockaddr_in);
1627 bufsize = sizeof namebuf;
1629 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1633 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1634 /* 'offset' means 'flags' here */
1635 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1636 (struct sockaddr *)namebuf, &bufsize);
1640 /* Bogus return without padding */
1641 bufsize = sizeof (struct sockaddr_in);
1643 SvCUR_set(bufsv, count);
1644 *SvEND(bufsv) = '\0';
1645 (void)SvPOK_only(bufsv);
1649 /* This should not be marked tainted if the fp is marked clean */
1650 if (!(IoFLAGS(io) & IOf_UNTAINT))
1651 SvTAINTED_on(bufsv);
1653 sv_setpvn(TARG, namebuf, bufsize);
1658 if (PL_op->op_type == OP_RECV)
1659 DIE(aTHX_ PL_no_sock_func, "recv");
1661 if (DO_UTF8(bufsv)) {
1662 /* offset adjust in characters not bytes */
1663 blen = sv_len_utf8(bufsv);
1666 if (-offset > (int)blen)
1667 DIE(aTHX_ "Offset outside string");
1670 if (DO_UTF8(bufsv)) {
1671 /* convert offset-as-chars to offset-as-bytes */
1672 if (offset >= (int)blen)
1673 offset += SvCUR(bufsv) - blen;
1675 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1678 bufsize = SvCUR(bufsv);
1679 /* Allocating length + offset + 1 isn't perfect in the case of reading
1680 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1682 (should be 2 * length + offset + 1, or possibly something longer if
1683 PL_encoding is true) */
1684 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1685 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1686 Zero(buffer+bufsize, offset-bufsize, char);
1688 buffer = buffer + offset;
1690 read_target = bufsv;
1692 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1693 concatenate it to the current buffer. */
1695 /* Truncate the existing buffer to the start of where we will be
1697 SvCUR_set(bufsv, offset);
1699 read_target = sv_newmortal();
1700 SvUPGRADE(read_target, SVt_PV);
1701 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1704 if (PL_op->op_type == OP_SYSREAD) {
1705 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1706 if (IoTYPE(io) == IoTYPE_SOCKET) {
1707 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1713 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1718 #ifdef HAS_SOCKET__bad_code_maybe
1719 if (IoTYPE(io) == IoTYPE_SOCKET) {
1720 char namebuf[MAXPATHLEN];
1721 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1722 bufsize = sizeof (struct sockaddr_in);
1724 bufsize = sizeof namebuf;
1726 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1727 (struct sockaddr *)namebuf, &bufsize);
1732 count = PerlIO_read(IoIFP(io), buffer, length);
1733 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1734 if (count == 0 && PerlIO_error(IoIFP(io)))
1738 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1739 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1742 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1743 *SvEND(read_target) = '\0';
1744 (void)SvPOK_only(read_target);
1745 if (fp_utf8 && !IN_BYTES) {
1746 /* Look at utf8 we got back and count the characters */
1747 const char *bend = buffer + count;
1748 while (buffer < bend) {
1750 skip = UTF8SKIP(buffer);
1753 if (buffer - charskip + skip > bend) {
1754 /* partial character - try for rest of it */
1755 length = skip - (bend-buffer);
1756 offset = bend - SvPVX_const(bufsv);
1768 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1769 provided amount read (count) was what was requested (length)
1771 if (got < wanted && count == length) {
1772 length = wanted - got;
1773 offset = bend - SvPVX_const(bufsv);
1776 /* return value is character count */
1780 else if (buffer_utf8) {
1781 /* Let svcatsv upgrade the bytes we read in to utf8.
1782 The buffer is a mortal so will be freed soon. */
1783 sv_catsv_nomg(bufsv, read_target);
1786 /* This should not be marked tainted if the fp is marked clean */
1787 if (!(IoFLAGS(io) & IOf_UNTAINT))
1788 SvTAINTED_on(bufsv);
1801 const int items = (SP - PL_stack_base) - TOPMARK;
1805 sv = sv_2mortal(newSViv(sv_len(*SP)));
1814 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1825 if (PL_op->op_type == OP_SYSWRITE
1826 && gv && (io = GvIO(gv))
1827 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1832 *MARK = SvTIED_obj((SV*)io, mg);
1834 call_method("WRITE", G_SCALAR);
1845 #if Size_t_size > IVSIZE
1846 length = (Size_t)SvNVx(*++MARK);
1848 length = (Size_t)SvIVx(*++MARK);
1850 if ((SSize_t)length < 0)
1851 DIE(aTHX_ "Negative length");
1854 if (!io || !IoIFP(io)) {
1856 if (ckWARN(WARN_CLOSED))
1857 report_evil_fh(gv, io, PL_op->op_type);
1858 SETERRNO(EBADF,RMS_IFI);
1862 if (PerlIO_isutf8(IoIFP(io))) {
1863 if (!SvUTF8(bufsv)) {
1864 bufsv = sv_2mortal(newSVsv(bufsv));
1865 buffer = sv_2pvutf8(bufsv, &blen);
1867 buffer = SvPV_const(bufsv, blen);
1870 if (DO_UTF8(bufsv)) {
1871 /* Not modifying source SV, so making a temporary copy. */
1872 bufsv = sv_2mortal(newSVsv(bufsv));
1873 sv_utf8_downgrade(bufsv, FALSE);
1875 buffer = SvPV_const(bufsv, blen);
1878 if (PL_op->op_type == OP_SYSWRITE) {
1880 if (DO_UTF8(bufsv)) {
1881 /* length and offset are in chars */
1882 blen = sv_len_utf8(bufsv);
1885 offset = SvIVx(*++MARK);
1887 if (-offset > (IV)blen)
1888 DIE(aTHX_ "Offset outside string");
1890 } else if (offset >= (IV)blen && blen > 0)
1891 DIE(aTHX_ "Offset outside string");
1894 if (length > blen - offset)
1895 length = blen - offset;
1896 if (DO_UTF8(bufsv)) {
1897 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1898 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1901 buffer = buffer+offset;
1903 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1904 if (IoTYPE(io) == IoTYPE_SOCKET) {
1905 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1911 /* See the note at doio.c:do_print about filesize limits. --jhi */
1912 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1917 else if (SP > MARK) {
1919 char * const sockbuf = SvPVx(*++MARK, mlen);
1920 /* length is really flags */
1921 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1922 length, (struct sockaddr *)sockbuf, mlen);
1925 /* length is really flags */
1926 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1929 DIE(aTHX_ PL_no_sock_func, "send");
1935 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1936 #if Size_t_size > IVSIZE
1950 return pp_sysread();
1961 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1963 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1965 if (io && !IoIFP(io)) {
1966 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1968 IoFLAGS(io) &= ~IOf_START;
1969 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1970 sv_setpvn(GvSV(gv), "-", 1);
1971 SvSETMAGIC(GvSV(gv));
1973 else if (!nextargv(gv))
1978 gv = PL_last_in_gv; /* eof */
1981 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1983 if (gv && (io = GvIO(gv))
1984 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1987 XPUSHs(SvTIED_obj((SV*)io, mg));
1990 call_method("EOF", G_SCALAR);
1996 PUSHs(boolSV(!gv || do_eof(gv)));
2010 gv = PL_last_in_gv = (GV*)POPs;
2012 if (gv && (io = GvIO(gv))
2013 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2016 XPUSHs(SvTIED_obj((SV*)io, mg));
2019 call_method("TELL", G_SCALAR);
2025 #if LSEEKSIZE > IVSIZE
2026 PUSHn( do_tell(gv) );
2028 PUSHi( do_tell(gv) );
2035 return pp_sysseek();
2043 const int whence = POPi;
2044 #if LSEEKSIZE > IVSIZE
2045 Off_t offset = (Off_t)SvNVx(POPs);
2047 Off_t offset = (Off_t)SvIVx(POPs);
2051 gv = PL_last_in_gv = (GV*)POPs;
2053 if (gv && (io = GvIO(gv))
2054 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2057 XPUSHs(SvTIED_obj((SV*)io, mg));
2058 #if LSEEKSIZE > IVSIZE
2059 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2061 XPUSHs(sv_2mortal(newSViv(offset)));
2063 XPUSHs(sv_2mortal(newSViv(whence)));
2066 call_method("SEEK", G_SCALAR);
2072 if (PL_op->op_type == OP_SEEK)
2073 PUSHs(boolSV(do_seek(gv, offset, whence)));
2075 Off_t sought = do_sysseek(gv, offset, whence);
2077 PUSHs(&PL_sv_undef);
2080 #if LSEEKSIZE > IVSIZE
2085 : newSVpvn(zero_but_true, ZBTLEN);
2086 PUSHs(sv_2mortal(sv));
2095 /* There seems to be no consensus on the length type of truncate()
2096 * and ftruncate(), both off_t and size_t have supporters. In
2097 * general one would think that when using large files, off_t is
2098 * at least as wide as size_t, so using an off_t should be okay. */
2099 /* XXX Configure probe for the length type of *truncate() needed XXX */
2102 #if Off_t_size > IVSIZE
2107 /* Checking for length < 0 is problematic as the type might or
2108 * might not be signed: if it is not, clever compilers will moan. */
2109 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2116 if (PL_op->op_flags & OPf_SPECIAL) {
2117 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2126 TAINT_PROPER("truncate");
2127 if (!(fp = IoIFP(io))) {
2133 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2135 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2145 if (SvTYPE(sv) == SVt_PVGV) {
2146 tmpgv = (GV*)sv; /* *main::FRED for example */
2147 goto do_ftruncate_gv;
2149 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2150 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2151 goto do_ftruncate_gv;
2153 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2154 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2155 goto do_ftruncate_io;
2158 name = SvPV_nolen_const(sv);
2159 TAINT_PROPER("truncate");
2161 if (truncate(name, len) < 0)
2167 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2170 if (my_chsize(tmpfd, len) < 0)
2172 PerlLIO_close(tmpfd);
2181 SETERRNO(EBADF,RMS_IFI);
2195 const unsigned int func = POPu;
2196 const int optype = PL_op->op_type;
2200 IO *io = gv ? GvIOn(gv) : 0;
2202 if (!io || !argsv || !IoIFP(io)) {
2203 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2204 report_evil_fh(gv, io, PL_op->op_type);
2205 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2209 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2212 s = SvPV_force(argsv, len);
2213 need = IOCPARM_LEN(func);
2215 s = Sv_Grow(argsv, need + 1);
2216 SvCUR_set(argsv, need);
2219 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2222 retval = SvIV(argsv);
2223 s = INT2PTR(char*,retval); /* ouch */
2226 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2228 if (optype == OP_IOCTL)
2230 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2232 DIE(aTHX_ "ioctl is not implemented");
2236 DIE(aTHX_ "fcntl is not implemented");
2238 #if defined(OS2) && defined(__EMX__)
2239 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2241 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2245 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2247 if (s[SvCUR(argsv)] != 17)
2248 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2250 s[SvCUR(argsv)] = 0; /* put our null back */
2251 SvSETMAGIC(argsv); /* Assume it has changed */
2260 PUSHp(zero_but_true, ZBTLEN);
2281 if (gv && (io = GvIO(gv)))
2288 (void)PerlIO_flush(fp);
2289 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2292 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2293 report_evil_fh(gv, io, PL_op->op_type);
2295 SETERRNO(EBADF,RMS_IFI);
2300 DIE(aTHX_ PL_no_func, "flock()");
2312 int protocol = POPi;
2318 io = gv ? GvIOn(gv) : NULL;
2321 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2322 report_evil_fh(gv, io, PL_op->op_type);
2324 do_close(gv, FALSE);
2325 SETERRNO(EBADF,LIB_INVARG);
2330 do_close(gv, FALSE);
2332 TAINT_PROPER("socket");
2333 fd = PerlSock_socket(domain, type, protocol);
2336 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2337 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2338 IoTYPE(io) = IoTYPE_SOCKET;
2339 if (!IoIFP(io) || !IoOFP(io)) {
2340 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2341 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2342 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2345 #if defined(HAS_FCNTL) && defined(F_SETFD)
2346 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2350 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2355 DIE(aTHX_ PL_no_sock_func, "socket");
2361 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2367 int protocol = POPi;
2374 io1 = gv1 ? GvIOn(gv1) : NULL;
2375 io2 = gv2 ? GvIOn(gv2) : NULL;
2376 if (!gv1 || !gv2 || !io1 || !io2) {
2377 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2379 report_evil_fh(gv1, io1, PL_op->op_type);
2381 report_evil_fh(gv1, io2, PL_op->op_type);
2384 do_close(gv1, FALSE);
2386 do_close(gv2, FALSE);
2391 do_close(gv1, FALSE);
2393 do_close(gv2, FALSE);
2395 TAINT_PROPER("socketpair");
2396 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2398 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2399 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2400 IoTYPE(io1) = IoTYPE_SOCKET;
2401 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2402 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2403 IoTYPE(io2) = IoTYPE_SOCKET;
2404 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2405 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2406 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2407 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2408 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2409 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2410 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2413 #if defined(HAS_FCNTL) && defined(F_SETFD)
2414 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2415 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2420 DIE(aTHX_ PL_no_sock_func, "socketpair");
2428 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2429 extern void GETPRIVMODE();
2430 extern void GETUSERMODE();
2435 register IO *io = GvIOn(gv);
2439 int mpeprivmode = 0;
2442 if (!io || !IoIFP(io))
2445 addr = SvPV(addrsv, len);
2446 TAINT_PROPER("bind");
2447 #ifdef MPE /* Deal with MPE bind() peculiarities */
2448 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2449 /* The address *MUST* stupidly be zero. */
2450 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2451 /* PRIV mode is required to bind() to ports < 1024. */
2452 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2453 ((struct sockaddr_in *)addr)->sin_port > 0) {
2454 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2459 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2460 (struct sockaddr *)addr, len) >= 0)
2463 #ifdef MPE /* Switch back to USER mode */
2474 if (ckWARN(WARN_CLOSED))
2475 report_evil_fh(gv, io, PL_op->op_type);
2476 SETERRNO(EBADF,SS_IVCHAN);
2479 DIE(aTHX_ PL_no_sock_func, "bind");
2490 register IO *io = GvIOn(gv);
2493 if (!io || !IoIFP(io))
2496 addr = SvPV(addrsv, len);
2497 TAINT_PROPER("connect");
2498 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2504 if (ckWARN(WARN_CLOSED))
2505 report_evil_fh(gv, io, PL_op->op_type);
2506 SETERRNO(EBADF,SS_IVCHAN);
2509 DIE(aTHX_ PL_no_sock_func, "connect");
2519 register IO *io = gv ? GvIOn(gv) : NULL;
2521 if (!gv || !io || !IoIFP(io))
2524 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2530 if (ckWARN(WARN_CLOSED))
2531 report_evil_fh(gv, io, PL_op->op_type);
2532 SETERRNO(EBADF,SS_IVCHAN);
2535 DIE(aTHX_ PL_no_sock_func, "listen");
2547 char namebuf[MAXPATHLEN];
2548 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2549 Sock_size_t len = sizeof (struct sockaddr_in);
2551 Sock_size_t len = sizeof namebuf;
2564 if (!gstio || !IoIFP(gstio))
2568 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2572 do_close(ngv, FALSE);
2573 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2574 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2575 IoTYPE(nstio) = IoTYPE_SOCKET;
2576 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2577 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2578 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2579 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2582 #if defined(HAS_FCNTL) && defined(F_SETFD)
2583 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2587 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2588 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2590 #ifdef __SCO_VERSION__
2591 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2594 PUSHp(namebuf, len);
2598 if (ckWARN(WARN_CLOSED))
2599 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2600 SETERRNO(EBADF,SS_IVCHAN);
2606 DIE(aTHX_ PL_no_sock_func, "accept");
2616 register IO *io = GvIOn(gv);
2618 if (!io || !IoIFP(io))
2621 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2625 if (ckWARN(WARN_CLOSED))
2626 report_evil_fh(gv, io, PL_op->op_type);
2627 SETERRNO(EBADF,SS_IVCHAN);
2630 DIE(aTHX_ PL_no_sock_func, "shutdown");
2637 return pp_ssockopt();
2639 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2647 int optype = PL_op->op_type;
2650 unsigned int optname;
2656 if (optype == OP_GSOCKOPT)
2657 sv = sv_2mortal(NEWSV(22, 257));
2660 optname = (unsigned int) POPi;
2661 lvl = (unsigned int) POPi;
2665 if (!io || !IoIFP(io))
2668 fd = PerlIO_fileno(IoIFP(io));
2672 (void)SvPOK_only(sv);
2676 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2691 aint = (int)SvIV(sv);
2695 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2704 if (ckWARN(WARN_CLOSED))
2705 report_evil_fh(gv, io, optype);
2706 SETERRNO(EBADF,SS_IVCHAN);
2711 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2718 return pp_getpeername();
2720 DIE(aTHX_ PL_no_sock_func, "getsockname");
2728 int optype = PL_op->op_type;
2732 register IO *io = GvIOn(gv);
2735 if (!io || !IoIFP(io))
2738 sv = sv_2mortal(NEWSV(22, 257));
2739 (void)SvPOK_only(sv);
2743 fd = PerlIO_fileno(IoIFP(io));
2745 case OP_GETSOCKNAME:
2746 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2749 case OP_GETPEERNAME:
2750 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2752 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2754 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";
2755 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2756 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2757 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2758 sizeof(u_short) + sizeof(struct in_addr))) {
2765 #ifdef BOGUS_GETNAME_RETURN
2766 /* Interactive Unix, getpeername() and getsockname()
2767 does not return valid namelen */
2768 if (len == BOGUS_GETNAME_RETURN)
2769 len = sizeof(struct sockaddr);
2777 if (ckWARN(WARN_CLOSED))
2778 report_evil_fh(gv, io, optype);
2779 SETERRNO(EBADF,SS_IVCHAN);
2784 DIE(aTHX_ PL_no_sock_func, "getpeername");
2802 if (PL_op->op_flags & OPf_REF) {
2804 if (PL_op->op_type == OP_LSTAT) {
2805 if (gv != PL_defgv) {
2806 if (ckWARN(WARN_IO))
2807 Perl_warner(aTHX_ packWARN(WARN_IO),
2808 "lstat() on filehandle %s", GvENAME(gv));
2809 } else if (PL_laststype != OP_LSTAT)
2810 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2814 if (gv != PL_defgv) {
2815 PL_laststype = OP_STAT;
2817 sv_setpvn(PL_statname, "", 0);
2818 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2819 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2821 if (PL_laststatval < 0) {
2822 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2823 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2829 if (SvTYPE(sv) == SVt_PVGV) {
2833 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2835 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2836 Perl_warner(aTHX_ packWARN(WARN_IO),
2837 "lstat() on filehandle %s", GvENAME(gv));
2840 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2842 PL_laststype = PL_op->op_type;
2843 if (PL_op->op_type == OP_LSTAT)
2844 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2846 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2847 if (PL_laststatval < 0) {
2848 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2849 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2855 if (gimme != G_ARRAY) {
2856 if (gimme != G_VOID)
2857 XPUSHs(boolSV(max));
2863 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2864 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2865 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2866 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2867 #if Uid_t_size > IVSIZE
2868 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2870 # if Uid_t_sign <= 0
2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2873 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2876 #if Gid_t_size > IVSIZE
2877 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2879 # if Gid_t_sign <= 0
2880 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2882 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2885 #ifdef USE_STAT_RDEV
2886 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2888 PUSHs(sv_2mortal(newSVpvn("", 0)));
2890 #if Off_t_size > IVSIZE
2891 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2893 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2896 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2897 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2898 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2900 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2901 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2902 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2904 #ifdef USE_STAT_BLOCKS
2905 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2906 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2908 PUSHs(sv_2mortal(newSVpvn("", 0)));
2909 PUSHs(sv_2mortal(newSVpvn("", 0)));
2915 /* This macro is used by the stacked filetest operators :
2916 * if the previous filetest failed, short-circuit and pass its value.
2917 * Else, discard it from the stack and continue. --rgs
2919 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2920 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2921 else { (void)POPs; PUTBACK; } \
2928 STACKED_FTEST_CHECK;
2929 #if defined(HAS_ACCESS) && defined(R_OK)
2930 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2931 result = access(POPpx, R_OK);
2946 if (cando(S_IRUSR, 0, &PL_statcache))
2955 STACKED_FTEST_CHECK;
2956 #if defined(HAS_ACCESS) && defined(W_OK)
2957 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2958 result = access(POPpx, W_OK);
2973 if (cando(S_IWUSR, 0, &PL_statcache))
2982 STACKED_FTEST_CHECK;
2983 #if defined(HAS_ACCESS) && defined(X_OK)
2984 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2985 result = access(POPpx, X_OK);
3000 if (cando(S_IXUSR, 0, &PL_statcache))
3009 STACKED_FTEST_CHECK;
3010 #ifdef PERL_EFF_ACCESS_R_OK
3011 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3012 result = PERL_EFF_ACCESS_R_OK(POPpx);
3027 if (cando(S_IRUSR, 1, &PL_statcache))
3036 STACKED_FTEST_CHECK;
3037 #ifdef PERL_EFF_ACCESS_W_OK
3038 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3039 result = PERL_EFF_ACCESS_W_OK(POPpx);
3054 if (cando(S_IWUSR, 1, &PL_statcache))
3063 STACKED_FTEST_CHECK;
3064 #ifdef PERL_EFF_ACCESS_X_OK
3065 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3066 result = PERL_EFF_ACCESS_X_OK(POPpx);
3081 if (cando(S_IXUSR, 1, &PL_statcache))
3090 STACKED_FTEST_CHECK;
3100 return pp_ftrowned();
3107 STACKED_FTEST_CHECK;
3112 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3122 STACKED_FTEST_CHECK;
3127 if (PL_statcache.st_size == 0)
3136 STACKED_FTEST_CHECK;
3141 #if Off_t_size > IVSIZE
3142 PUSHn(PL_statcache.st_size);
3144 PUSHi(PL_statcache.st_size);
3153 STACKED_FTEST_CHECK;
3158 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3166 STACKED_FTEST_CHECK;
3171 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3179 STACKED_FTEST_CHECK;
3184 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3192 STACKED_FTEST_CHECK;
3197 if (S_ISSOCK(PL_statcache.st_mode))
3206 STACKED_FTEST_CHECK;
3211 if (S_ISCHR(PL_statcache.st_mode))
3220 STACKED_FTEST_CHECK;
3225 if (S_ISBLK(PL_statcache.st_mode))
3234 STACKED_FTEST_CHECK;
3239 if (S_ISREG(PL_statcache.st_mode))
3248 STACKED_FTEST_CHECK;
3253 if (S_ISDIR(PL_statcache.st_mode))
3262 STACKED_FTEST_CHECK;
3267 if (S_ISFIFO(PL_statcache.st_mode))
3274 I32 result = my_lstat();
3278 if (S_ISLNK(PL_statcache.st_mode))
3288 STACKED_FTEST_CHECK;
3293 if (PL_statcache.st_mode & S_ISUID)
3304 STACKED_FTEST_CHECK;
3309 if (PL_statcache.st_mode & S_ISGID)
3320 STACKED_FTEST_CHECK;
3325 if (PL_statcache.st_mode & S_ISVTX)
3338 STACKED_FTEST_CHECK;
3340 if (PL_op->op_flags & OPf_REF)
3342 else if (isGV(TOPs))
3344 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3345 gv = (GV*)SvRV(POPs);
3347 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3349 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3350 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3351 else if (tmpsv && SvOK(tmpsv)) {
3352 char *tmps = SvPV_nolen(tmpsv);
3360 if (PerlLIO_isatty(fd))
3365 #if defined(atarist) /* this will work with atariST. Configure will
3366 make guesses for other systems. */
3367 # define FILE_base(f) ((f)->_base)
3368 # define FILE_ptr(f) ((f)->_ptr)
3369 # define FILE_cnt(f) ((f)->_cnt)
3370 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3380 register STDCHAR *s;
3386 STACKED_FTEST_CHECK;
3388 if (PL_op->op_flags & OPf_REF)
3390 else if (isGV(TOPs))
3392 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3393 gv = (GV*)SvRV(POPs);
3399 if (gv == PL_defgv) {
3401 io = GvIO(PL_statgv);
3404 goto really_filename;
3409 PL_laststatval = -1;
3410 sv_setpvn(PL_statname, "", 0);
3411 io = GvIO(PL_statgv);
3413 if (io && IoIFP(io)) {
3414 if (! PerlIO_has_base(IoIFP(io)))
3415 DIE(aTHX_ "-T and -B not implemented on filehandles");
3416 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3417 if (PL_laststatval < 0)
3419 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3420 if (PL_op->op_type == OP_FTTEXT)
3425 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3426 i = PerlIO_getc(IoIFP(io));
3428 (void)PerlIO_ungetc(IoIFP(io),i);
3430 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3432 len = PerlIO_get_bufsiz(IoIFP(io));
3433 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3434 /* sfio can have large buffers - limit to 512 */
3439 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3441 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3443 SETERRNO(EBADF,RMS_IFI);
3451 PL_laststype = OP_STAT;
3452 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3453 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3454 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen(PL_statname), '\n'))
3455 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3458 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3459 if (PL_laststatval < 0) {
3460 (void)PerlIO_close(fp);
3463 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3464 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3465 (void)PerlIO_close(fp);
3467 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3468 RETPUSHNO; /* special case NFS directories */
3469 RETPUSHYES; /* null file is anything */
3474 /* now scan s to look for textiness */
3475 /* XXX ASCII dependent code */
3477 #if defined(DOSISH) || defined(USEMYBINMODE)
3478 /* ignore trailing ^Z on short files */
3479 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3483 for (i = 0; i < len; i++, s++) {
3484 if (!*s) { /* null never allowed in text */
3489 else if (!(isPRINT(*s) || isSPACE(*s)))
3492 else if (*s & 128) {
3494 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3497 /* utf8 characters don't count as odd */
3498 if (UTF8_IS_START(*s)) {
3499 int ulen = UTF8SKIP(s);
3500 if (ulen < len - i) {
3502 for (j = 1; j < ulen; j++) {
3503 if (!UTF8_IS_CONTINUATION(s[j]))
3506 --ulen; /* loop does extra increment */
3516 *s != '\n' && *s != '\r' && *s != '\b' &&
3517 *s != '\t' && *s != '\f' && *s != 27)
3522 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3546 if( !tmps || !*tmps ) {
3547 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3548 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3550 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3555 deprecate("chdir('') or chdir(undef) as chdir()");
3556 tmps = SvPV_nolen_const(*svp);
3560 TAINT_PROPER("chdir");
3565 TAINT_PROPER("chdir");
3566 PUSHi( PerlDir_chdir(tmps) >= 0 );
3568 /* Clear the DEFAULT element of ENV so we'll get the new value
3570 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3578 dSP; dMARK; dTARGET;
3579 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3585 DIE(aTHX_ PL_no_func, "chown");
3594 TAINT_PROPER("chroot");
3595 PUSHi( chroot(tmps) >= 0 );
3598 DIE(aTHX_ PL_no_func, "chroot");
3604 dSP; dMARK; dTARGET;
3606 value = (I32)apply(PL_op->op_type, MARK, SP);
3614 dSP; dMARK; dTARGET;
3616 value = (I32)apply(PL_op->op_type, MARK, SP);
3624 dSP; dMARK; dTARGET;
3626 value = (I32)apply(PL_op->op_type, MARK, SP);
3636 const char *tmps2 = POPpconstx;
3637 const char *tmps = SvPV_nolen_const(TOPs);
3638 TAINT_PROPER("rename");
3640 anum = PerlLIO_rename(tmps, tmps2);
3642 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3643 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3646 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3647 (void)UNLINK(tmps2);
3648 if (!(anum = link(tmps, tmps2)))
3649 anum = UNLINK(tmps);
3661 const char *tmps2 = POPpconstx;
3662 const char *tmps = SvPV_nolen_const(TOPs);
3663 TAINT_PROPER("link");
3664 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3667 DIE(aTHX_ PL_no_func, "link");
3675 const char *tmps2 = POPpconstx;
3676 const char *tmps = SvPV_nolen_const(TOPs);
3677 TAINT_PROPER("symlink");
3678 SETi( symlink(tmps, tmps2) >= 0 );
3681 DIE(aTHX_ PL_no_func, "symlink");
3691 char buf[MAXPATHLEN];
3694 #ifndef INCOMPLETE_TAINTS
3698 len = readlink(tmps, buf, sizeof(buf) - 1);
3706 RETSETUNDEF; /* just pretend it's a normal file */
3710 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3712 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3714 char * const save_filename = filename;
3720 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3721 strcpy(cmdline, cmd);
3722 strcat(cmdline, " ");
3723 for (s = cmdline + strlen(cmdline); *filename; ) {
3728 myfp = PerlProc_popen(cmdline, "r");
3732 SV *tmpsv = sv_newmortal();
3733 /* Need to save/restore 'PL_rs' ?? */
3734 s = sv_gets(tmpsv, myfp, 0);
3735 (void)PerlProc_pclose(myfp);
3739 #ifdef HAS_SYS_ERRLIST
3744 /* you don't see this */
3746 #ifdef HAS_SYS_ERRLIST
3754 if (instr(s, errmsg)) {
3761 #define EACCES EPERM
3763 if (instr(s, "cannot make"))
3764 SETERRNO(EEXIST,RMS_FEX);
3765 else if (instr(s, "existing file"))
3766 SETERRNO(EEXIST,RMS_FEX);
3767 else if (instr(s, "ile exists"))
3768 SETERRNO(EEXIST,RMS_FEX);
3769 else if (instr(s, "non-exist"))
3770 SETERRNO(ENOENT,RMS_FNF);
3771 else if (instr(s, "does not exist"))
3772 SETERRNO(ENOENT,RMS_FNF);
3773 else if (instr(s, "not empty"))
3774 SETERRNO(EBUSY,SS_DEVOFFLINE);
3775 else if (instr(s, "cannot access"))
3776 SETERRNO(EACCES,RMS_PRV);
3778 SETERRNO(EPERM,RMS_PRV);
3781 else { /* some mkdirs return no failure indication */
3782 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3783 if (PL_op->op_type == OP_RMDIR)
3788 SETERRNO(EACCES,RMS_PRV); /* a guess */
3797 /* This macro removes trailing slashes from a directory name.
3798 * Different operating and file systems take differently to
3799 * trailing slashes. According to POSIX 1003.1 1996 Edition
3800 * any number of trailing slashes should be allowed.
3801 * Thusly we snip them away so that even non-conforming
3802 * systems are happy.
3803 * We should probably do this "filtering" for all
3804 * the functions that expect (potentially) directory names:
3805 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3806 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3808 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3809 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3812 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3813 (tmps) = savepvn((tmps), (len)); \
3833 TRIMSLASHES(tmps,len,copy);
3835 TAINT_PROPER("mkdir");
3837 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3839 SETi( dooneliner("mkdir", tmps) );
3840 oldumask = PerlLIO_umask(0);
3841 PerlLIO_umask(oldumask);
3842 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3856 TRIMSLASHES(tmps,len,copy);
3857 TAINT_PROPER("rmdir");
3859 SETi( PerlDir_rmdir(tmps) >= 0 );
3861 SETi( dooneliner("rmdir", tmps) );
3868 /* Directory calls. */
3872 #if defined(Direntry_t) && defined(HAS_READDIR)
3874 const char *dirname = POPpconstx;
3876 register IO *io = GvIOn(gv);
3882 PerlDir_close(IoDIRP(io));
3883 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3889 SETERRNO(EBADF,RMS_DIR);
3892 DIE(aTHX_ PL_no_dir_func, "opendir");
3898 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3899 DIE(aTHX_ PL_no_dir_func, "readdir");
3901 #if !defined(I_DIRENT) && !defined(VMS)
3902 Direntry_t *readdir (DIR *);
3907 const I32 gimme = GIMME;
3908 GV *gv = (GV *)POPs;
3909 register Direntry_t *dp;
3910 register IO *io = GvIOn(gv);
3912 if (!io || !IoDIRP(io))
3916 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3920 sv = newSVpvn(dp->d_name, dp->d_namlen);
3922 sv = newSVpv(dp->d_name, 0);
3924 #ifndef INCOMPLETE_TAINTS
3925 if (!(IoFLAGS(io) & IOf_UNTAINT))
3928 XPUSHs(sv_2mortal(sv));
3930 while (gimme == G_ARRAY);
3932 if (!dp && gimme != G_ARRAY)
3939 SETERRNO(EBADF,RMS_ISI);
3940 if (GIMME == G_ARRAY)
3949 #if defined(HAS_TELLDIR) || defined(telldir)
3951 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3952 /* XXX netbsd still seemed to.
3953 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3954 --JHI 1999-Feb-02 */
3955 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3956 long telldir (DIR *);
3959 register IO *io = GvIOn(gv);
3961 if (!io || !IoDIRP(io))
3964 PUSHi( PerlDir_tell(IoDIRP(io)) );
3968 SETERRNO(EBADF,RMS_ISI);
3971 DIE(aTHX_ PL_no_dir_func, "telldir");
3977 #if defined(HAS_SEEKDIR) || defined(seekdir)
3981 register IO *io = GvIOn(gv);
3983 if (!io || !IoDIRP(io))
3986 (void)PerlDir_seek(IoDIRP(io), along);
3991 SETERRNO(EBADF,RMS_ISI);
3994 DIE(aTHX_ PL_no_dir_func, "seekdir");
4000 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4003 register IO *io = GvIOn(gv);
4005 if (!io || !IoDIRP(io))
4008 (void)PerlDir_rewind(IoDIRP(io));
4012 SETERRNO(EBADF,RMS_ISI);
4015 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4021 #if defined(Direntry_t) && defined(HAS_READDIR)
4024 register IO *io = GvIOn(gv);
4026 if (!io || !IoDIRP(io))
4029 #ifdef VOID_CLOSEDIR
4030 PerlDir_close(IoDIRP(io));
4032 if (PerlDir_close(IoDIRP(io)) < 0) {
4033 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4042 SETERRNO(EBADF,RMS_IFI);
4045 DIE(aTHX_ PL_no_dir_func, "closedir");
4049 /* Process control. */
4059 PERL_FLUSHALL_FOR_CHILD;
4060 childpid = PerlProc_fork();
4065 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4066 SvREADONLY_off(GvSV(tmpgv));
4067 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4068 SvREADONLY_on(GvSV(tmpgv));
4070 #ifdef THREADS_HAVE_PIDS
4071 PL_ppid = (IV)getppid();
4073 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4078 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4083 PERL_FLUSHALL_FOR_CHILD;
4084 childpid = PerlProc_fork();
4090 DIE(aTHX_ PL_no_func, "fork");
4097 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4102 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4103 childpid = wait4pid(-1, &argflags, 0);
4105 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4110 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4111 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4112 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4114 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4119 DIE(aTHX_ PL_no_func, "wait");
4125 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4134 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4135 result = wait4pid(pid, &argflags, optype);
4137 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4142 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4143 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4144 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4146 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4151 DIE(aTHX_ PL_no_func, "waitpid");
4157 dSP; dMARK; dORIGMARK; dTARGET;
4163 while (++MARK <= SP) {
4164 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4169 TAINT_PROPER("system");
4171 PERL_FLUSHALL_FOR_CHILD;
4172 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4178 if (PerlProc_pipe(pp) >= 0)
4180 while ((childpid = PerlProc_fork()) == -1) {
4181 if (errno != EAGAIN) {
4186 PerlLIO_close(pp[0]);
4187 PerlLIO_close(pp[1]);
4194 Sigsave_t ihand,qhand; /* place to save signals during system() */
4198 PerlLIO_close(pp[1]);
4200 rsignal_save(SIGINT, SIG_IGN, &ihand);
4201 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4204 result = wait4pid(childpid, &status, 0);
4205 } while (result == -1 && errno == EINTR);
4207 (void)rsignal_restore(SIGINT, &ihand);
4208 (void)rsignal_restore(SIGQUIT, &qhand);
4210 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4211 do_execfree(); /* free any memory child malloced on fork */
4217 while (n < sizeof(int)) {
4218 n1 = PerlLIO_read(pp[0],
4219 (void*)(((char*)&errkid)+n),
4225 PerlLIO_close(pp[0]);
4226 if (n) { /* Error */
4227 if (n != sizeof(int))
4228 DIE(aTHX_ "panic: kid popen errno read");
4229 errno = errkid; /* Propagate errno from kid */
4230 STATUS_CURRENT = -1;
4233 PUSHi(STATUS_CURRENT);
4237 PerlLIO_close(pp[0]);
4238 #if defined(HAS_FCNTL) && defined(F_SETFD)
4239 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4242 if (PL_op->op_flags & OPf_STACKED) {
4243 SV *really = *++MARK;
4244 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4246 else if (SP - MARK != 1)
4247 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4249 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4253 #else /* ! FORK or VMS or OS/2 */
4256 if (PL_op->op_flags & OPf_STACKED) {
4257 SV *really = *++MARK;
4258 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4259 value = (I32)do_aspawn(really, MARK, SP);
4261 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4264 else if (SP - MARK != 1) {
4265 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4266 value = (I32)do_aspawn(Nullsv, MARK, SP);
4268 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4272 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4274 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4276 STATUS_NATIVE_SET(value);
4279 PUSHi(result ? value : STATUS_CURRENT);
4280 #endif /* !FORK or VMS */
4286 dSP; dMARK; dORIGMARK; dTARGET;
4291 while (++MARK <= SP) {
4292 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4297 TAINT_PROPER("exec");
4299 PERL_FLUSHALL_FOR_CHILD;
4300 if (PL_op->op_flags & OPf_STACKED) {
4301 SV *really = *++MARK;
4302 value = (I32)do_aexec(really, MARK, SP);
4304 else if (SP - MARK != 1)
4306 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4310 (void ) do_aspawn(Nullsv, MARK, SP);
4314 value = (I32)do_aexec(Nullsv, MARK, SP);
4319 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4322 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4325 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4338 dSP; dMARK; dTARGET;
4340 value = (I32)apply(PL_op->op_type, MARK, SP);
4345 DIE(aTHX_ PL_no_func, "kill");
4353 # ifdef THREADS_HAVE_PIDS
4354 if (PL_ppid != 1 && getppid() == 1)
4355 /* maybe the parent process has died. Refresh ppid cache */
4359 XPUSHi( getppid() );
4363 DIE(aTHX_ PL_no_func, "getppid");
4379 pgrp = (I32)BSD_GETPGRP(pid);
4381 if (pid != 0 && pid != PerlProc_getpid())
4382 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4388 DIE(aTHX_ PL_no_func, "getpgrp()");
4407 TAINT_PROPER("setpgrp");
4409 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4411 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4412 || (pid != 0 && pid != PerlProc_getpid()))
4414 DIE(aTHX_ "setpgrp can't take arguments");
4416 SETi( setpgrp() >= 0 );
4417 #endif /* USE_BSDPGRP */
4420 DIE(aTHX_ PL_no_func, "setpgrp()");
4426 #ifdef HAS_GETPRIORITY
4430 SETi( getpriority(which, who) );
4433 DIE(aTHX_ PL_no_func, "getpriority()");
4439 #ifdef HAS_SETPRIORITY
4444 TAINT_PROPER("setpriority");
4445 SETi( setpriority(which, who, niceval) >= 0 );
4448 DIE(aTHX_ PL_no_func, "setpriority()");
4458 XPUSHn( time(Null(Time_t*)) );
4460 XPUSHi( time(Null(Time_t*)) );
4471 (void)PerlProc_times(&PL_timesbuf);
4473 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4474 /* struct tms, though same data */
4478 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4479 if (GIMME == G_ARRAY) {
4480 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4481 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4482 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4488 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4490 if (GIMME == G_ARRAY) {
4491 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4492 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4493 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4497 DIE(aTHX_ "times not implemented");
4499 #endif /* HAS_TIMES */
4511 const struct tm *tmbuf;
4512 static const char * const dayname[] =
4513 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4514 static const char * const monname[] =
4515 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4516 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4522 when = (Time_t)SvNVx(POPs);
4524 when = (Time_t)SvIVx(POPs);
4527 if (PL_op->op_type == OP_LOCALTIME)
4528 tmbuf = localtime(&when);
4530 tmbuf = gmtime(&when);
4532 if (GIMME != G_ARRAY) {
4538 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4539 dayname[tmbuf->tm_wday],
4540 monname[tmbuf->tm_mon],
4545 tmbuf->tm_year + 1900);
4546 PUSHs(sv_2mortal(tsv));
4551 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4552 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4553 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4554 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4555 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4556 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4557 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4558 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4559 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4570 anum = alarm((unsigned int)anum);
4577 DIE(aTHX_ PL_no_func, "alarm");
4588 (void)time(&lasttime);
4593 PerlProc_sleep((unsigned int)duration);
4596 XPUSHi(when - lasttime);
4600 /* Shared memory. */
4614 return pp_shmwrite();
4619 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4620 dSP; dMARK; dTARGET;
4621 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4630 /* Message passing. */
4644 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4645 dSP; dMARK; dTARGET;
4646 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4657 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4658 dSP; dMARK; dTARGET;
4659 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4672 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4673 dSP; dMARK; dTARGET;
4674 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4681 DIE(aTHX_ "System V IPC is not implemented on this machine");
4687 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4688 dSP; dMARK; dTARGET;
4689 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4697 PUSHp(zero_but_true, ZBTLEN);
4707 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4708 dSP; dMARK; dTARGET;
4709 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4718 /* Get system info. */
4722 #ifdef HAS_GETHOSTBYNAME
4723 return pp_ghostent();
4725 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4731 #ifdef HAS_GETHOSTBYADDR
4732 return pp_ghostent();
4734 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4740 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4742 I32 which = PL_op->op_type;
4743 register char **elem;
4745 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4746 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4747 struct hostent *gethostbyname(Netdb_name_t);
4748 struct hostent *gethostent(void);
4750 struct hostent *hent;
4754 if (which == OP_GHBYNAME) {
4755 #ifdef HAS_GETHOSTBYNAME
4756 char* name = POPpbytex;
4757 hent = PerlSock_gethostbyname(name);
4759 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4762 else if (which == OP_GHBYADDR) {
4763 #ifdef HAS_GETHOSTBYADDR
4764 int addrtype = POPi;
4767 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4769 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4771 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4775 #ifdef HAS_GETHOSTENT
4776 hent = PerlSock_gethostent();
4778 DIE(aTHX_ PL_no_sock_func, "gethostent");
4781 #ifdef HOST_NOT_FOUND
4783 #ifdef USE_REENTRANT_API
4784 # ifdef USE_GETHOSTENT_ERRNO
4785 h_errno = PL_reentrant_buffer->_gethostent_errno;
4788 STATUS_NATIVE_SET(h_errno);
4792 if (GIMME != G_ARRAY) {
4793 PUSHs(sv = sv_newmortal());
4795 if (which == OP_GHBYNAME) {
4797 sv_setpvn(sv, hent->h_addr, hent->h_length);
4800 sv_setpv(sv, (char*)hent->h_name);
4806 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4807 sv_setpv(sv, (char*)hent->h_name);
4808 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4809 for (elem = hent->h_aliases; elem && *elem; elem++) {
4810 sv_catpv(sv, *elem);
4812 sv_catpvn(sv, " ", 1);
4814 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4815 sv_setiv(sv, (IV)hent->h_addrtype);
4816 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4817 len = hent->h_length;
4818 sv_setiv(sv, (IV)len);
4820 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4821 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4822 sv_setpvn(sv, *elem, len);
4825 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4827 sv_setpvn(sv, hent->h_addr, len);
4832 DIE(aTHX_ PL_no_sock_func, "gethostent");
4838 #ifdef HAS_GETNETBYNAME
4839 return pp_gnetent();
4841 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4847 #ifdef HAS_GETNETBYADDR
4848 return pp_gnetent();
4850 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4856 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4858 I32 which = PL_op->op_type;
4859 register char **elem;
4861 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4862 struct netent *getnetbyaddr(Netdb_net_t, int);
4863 struct netent *getnetbyname(Netdb_name_t);
4864 struct netent *getnetent(void);
4866 struct netent *nent;
4868 if (which == OP_GNBYNAME){
4869 #ifdef HAS_GETNETBYNAME
4870 char *name = POPpbytex;
4871 nent = PerlSock_getnetbyname(name);
4873 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4876 else if (which == OP_GNBYADDR) {
4877 #ifdef HAS_GETNETBYADDR
4878 int addrtype = POPi;
4879 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4880 nent = PerlSock_getnetbyaddr(addr, addrtype);
4882 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4886 #ifdef HAS_GETNETENT
4887 nent = PerlSock_getnetent();
4889 DIE(aTHX_ PL_no_sock_func, "getnetent");
4892 #ifdef HOST_NOT_FOUND
4894 #ifdef USE_REENTRANT_API
4895 # ifdef USE_GETNETENT_ERRNO
4896 h_errno = PL_reentrant_buffer->_getnetent_errno;
4899 STATUS_NATIVE_SET(h_errno);
4904 if (GIMME != G_ARRAY) {
4905 PUSHs(sv = sv_newmortal());
4907 if (which == OP_GNBYNAME)
4908 sv_setiv(sv, (IV)nent->n_net);
4910 sv_setpv(sv, nent->n_name);
4916 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4917 sv_setpv(sv, nent->n_name);
4918 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4919 for (elem = nent->n_aliases; elem && *elem; elem++) {
4920 sv_catpv(sv, *elem);
4922 sv_catpvn(sv, " ", 1);
4924 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4925 sv_setiv(sv, (IV)nent->n_addrtype);
4926 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4927 sv_setiv(sv, (IV)nent->n_net);
4932 DIE(aTHX_ PL_no_sock_func, "getnetent");
4938 #ifdef HAS_GETPROTOBYNAME
4939 return pp_gprotoent();
4941 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4947 #ifdef HAS_GETPROTOBYNUMBER
4948 return pp_gprotoent();
4950 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4956 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4958 I32 which = PL_op->op_type;
4959 register char **elem;
4961 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4962 struct protoent *getprotobyname(Netdb_name_t);
4963 struct protoent *getprotobynumber(int);
4964 struct protoent *getprotoent(void);
4966 struct protoent *pent;
4968 if (which == OP_GPBYNAME) {
4969 #ifdef HAS_GETPROTOBYNAME
4970 char* name = POPpbytex;
4971 pent = PerlSock_getprotobyname(name);
4973 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4976 else if (which == OP_GPBYNUMBER) {
4977 #ifdef HAS_GETPROTOBYNUMBER
4979 pent = PerlSock_getprotobynumber(number);
4981 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4985 #ifdef HAS_GETPROTOENT
4986 pent = PerlSock_getprotoent();
4988 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4992 if (GIMME != G_ARRAY) {
4993 PUSHs(sv = sv_newmortal());
4995 if (which == OP_GPBYNAME)
4996 sv_setiv(sv, (IV)pent->p_proto);
4998 sv_setpv(sv, pent->p_name);
5004 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5005 sv_setpv(sv, pent->p_name);
5006 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5007 for (elem = pent->p_aliases; elem && *elem; elem++) {
5008 sv_catpv(sv, *elem);
5010 sv_catpvn(sv, " ", 1);
5012 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5013 sv_setiv(sv, (IV)pent->p_proto);
5018 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5024 #ifdef HAS_GETSERVBYNAME
5025 return pp_gservent();
5027 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5033 #ifdef HAS_GETSERVBYPORT
5034 return pp_gservent();
5036 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5042 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5044 I32 which = PL_op->op_type;
5045 register char **elem;
5047 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5048 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5049 struct servent *getservbyport(int, Netdb_name_t);
5050 struct servent *getservent(void);
5052 struct servent *sent;
5054 if (which == OP_GSBYNAME) {
5055 #ifdef HAS_GETSERVBYNAME
5056 char *proto = POPpbytex;
5057 char *name = POPpbytex;
5059 if (proto && !*proto)
5062 sent = PerlSock_getservbyname(name, proto);
5064 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5067 else if (which == OP_GSBYPORT) {
5068 #ifdef HAS_GETSERVBYPORT
5069 char *proto = POPpbytex;
5070 unsigned short port = (unsigned short)POPu;
5072 if (proto && !*proto)
5076 port = PerlSock_htons(port);
5078 sent = PerlSock_getservbyport(port, proto);
5080 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5084 #ifdef HAS_GETSERVENT
5085 sent = PerlSock_getservent();
5087 DIE(aTHX_ PL_no_sock_func, "getservent");
5091 if (GIMME != G_ARRAY) {
5092 PUSHs(sv = sv_newmortal());
5094 if (which == OP_GSBYNAME) {
5096 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5098 sv_setiv(sv, (IV)(sent->s_port));
5102 sv_setpv(sv, sent->s_name);
5108 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5109 sv_setpv(sv, sent->s_name);
5110 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5111 for (elem = sent->s_aliases; elem && *elem; elem++) {
5112 sv_catpv(sv, *elem);
5114 sv_catpvn(sv, " ", 1);
5116 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5118 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5120 sv_setiv(sv, (IV)(sent->s_port));
5122 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5123 sv_setpv(sv, sent->s_proto);
5128 DIE(aTHX_ PL_no_sock_func, "getservent");
5134 #ifdef HAS_SETHOSTENT
5136 PerlSock_sethostent(TOPi);
5139 DIE(aTHX_ PL_no_sock_func, "sethostent");
5145 #ifdef HAS_SETNETENT
5147 PerlSock_setnetent(TOPi);
5150 DIE(aTHX_ PL_no_sock_func, "setnetent");
5156 #ifdef HAS_SETPROTOENT
5158 PerlSock_setprotoent(TOPi);
5161 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5167 #ifdef HAS_SETSERVENT
5169 PerlSock_setservent(TOPi);
5172 DIE(aTHX_ PL_no_sock_func, "setservent");
5178 #ifdef HAS_ENDHOSTENT
5180 PerlSock_endhostent();
5184 DIE(aTHX_ PL_no_sock_func, "endhostent");
5190 #ifdef HAS_ENDNETENT
5192 PerlSock_endnetent();
5196 DIE(aTHX_ PL_no_sock_func, "endnetent");
5202 #ifdef HAS_ENDPROTOENT
5204 PerlSock_endprotoent();
5208 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5214 #ifdef HAS_ENDSERVENT
5216 PerlSock_endservent();
5220 DIE(aTHX_ PL_no_sock_func, "endservent");
5229 DIE(aTHX_ PL_no_func, "getpwnam");
5238 DIE(aTHX_ PL_no_func, "getpwuid");
5246 I32 which = PL_op->op_type;
5248 struct passwd *pwent = NULL;
5250 * We currently support only the SysV getsp* shadow password interface.
5251 * The interface is declared in <shadow.h> and often one needs to link
5252 * with -lsecurity or some such.
5253 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5256 * AIX getpwnam() is clever enough to return the encrypted password
5257 * only if the caller (euid?) is root.
5259 * There are at least three other shadow password APIs. Many platforms
5260 * seem to contain more than one interface for accessing the shadow
5261 * password databases, possibly for compatibility reasons.
5262 * The getsp*() is by far he simplest one, the other two interfaces
5263 * are much more complicated, but also very similar to each other.
5268 * struct pr_passwd *getprpw*();
5269 * The password is in
5270 * char getprpw*(...).ufld.fd_encrypt[]
5271 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5276 * struct es_passwd *getespw*();
5277 * The password is in
5278 * char *(getespw*(...).ufld.fd_encrypt)
5279 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5282 * struct userpw *getuserpw();
5283 * The password is in
5284 * char *(getuserpw(...)).spw_upw_passwd
5285 * (but the de facto standard getpwnam() should work okay)
5287 * Mention I_PROT here so that Configure probes for it.
5289 * In HP-UX for getprpw*() the manual page claims that one should include
5290 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5291 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5292 * and pp_sys.c already includes <shadow.h> if there is such.
5294 * Note that <sys/security.h> is already probed for, but currently
5295 * it is only included in special cases.
5297 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5298 * be preferred interface, even though also the getprpw*() interface
5299 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5300 * One also needs to call set_auth_parameters() in main() before
5301 * doing anything else, whether one is using getespw*() or getprpw*().
5303 * Note that accessing the shadow databases can be magnitudes
5304 * slower than accessing the standard databases.
5309 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5310 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5311 * the pw_comment is left uninitialized. */
5312 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5318 char* name = POPpbytex;
5319 pwent = getpwnam(name);
5325 pwent = getpwuid(uid);
5329 # ifdef HAS_GETPWENT
5331 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5332 if (pwent) pwent = getpwnam(pwent->pw_name);
5335 DIE(aTHX_ PL_no_func, "getpwent");
5341 if (GIMME != G_ARRAY) {
5342 PUSHs(sv = sv_newmortal());
5344 if (which == OP_GPWNAM)
5345 # if Uid_t_sign <= 0
5346 sv_setiv(sv, (IV)pwent->pw_uid);
5348 sv_setuv(sv, (UV)pwent->pw_uid);
5351 sv_setpv(sv, pwent->pw_name);
5357 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5358 sv_setpv(sv, pwent->pw_name);
5360 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5362 /* If we have getspnam(), we try to dig up the shadow
5363 * password. If we are underprivileged, the shadow
5364 * interface will set the errno to EACCES or similar,
5365 * and return a null pointer. If this happens, we will
5366 * use the dummy password (usually "*" or "x") from the
5367 * standard password database.
5369 * In theory we could skip the shadow call completely
5370 * if euid != 0 but in practice we cannot know which
5371 * security measures are guarding the shadow databases
5372 * on a random platform.
5374 * Resist the urge to use additional shadow interfaces.
5375 * Divert the urge to writing an extension instead.
5378 /* Some AIX setups falsely(?) detect some getspnam(), which
5379 * has a different API than the Solaris/IRIX one. */
5380 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5382 struct spwd *spwent;
5383 int saverrno; /* Save and restore errno so that
5384 * underprivileged attempts seem
5385 * to have never made the unsccessful
5386 * attempt to retrieve the shadow password. */
5389 spwent = getspnam(pwent->pw_name);
5391 if (spwent && spwent->sp_pwdp)
5392 sv_setpv(sv, spwent->sp_pwdp);
5396 if (!SvPOK(sv)) /* Use the standard password, then. */
5397 sv_setpv(sv, pwent->pw_passwd);
5400 # ifndef INCOMPLETE_TAINTS
5401 /* passwd is tainted because user himself can diddle with it.
5402 * admittedly not much and in a very limited way, but nevertheless. */
5406 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5407 # if Uid_t_sign <= 0
5408 sv_setiv(sv, (IV)pwent->pw_uid);
5410 sv_setuv(sv, (UV)pwent->pw_uid);
5413 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5414 # if Uid_t_sign <= 0
5415 sv_setiv(sv, (IV)pwent->pw_gid);
5417 sv_setuv(sv, (UV)pwent->pw_gid);
5419 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5420 * because of the poor interface of the Perl getpw*(),
5421 * not because there's some standard/convention saying so.
5422 * A better interface would have been to return a hash,
5423 * but we are accursed by our history, alas. --jhi. */
5424 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5426 sv_setiv(sv, (IV)pwent->pw_change);
5429 sv_setiv(sv, (IV)pwent->pw_quota);
5432 sv_setpv(sv, pwent->pw_age);
5437 /* pw_class and pw_comment are mutually exclusive--.
5438 * see the above note for pw_change, pw_quota, and pw_age. */
5439 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5441 sv_setpv(sv, pwent->pw_class);
5444 sv_setpv(sv, pwent->pw_comment);
5448 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5450 sv_setpv(sv, pwent->pw_gecos);
5452 # ifndef INCOMPLETE_TAINTS
5453 /* pw_gecos is tainted because user himself can diddle with it. */
5457 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5458 sv_setpv(sv, pwent->pw_dir);
5460 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5461 sv_setpv(sv, pwent->pw_shell);
5462 # ifndef INCOMPLETE_TAINTS
5463 /* pw_shell is tainted because user himself can diddle with it. */
5468 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5469 sv_setiv(sv, (IV)pwent->pw_expire);
5474 DIE(aTHX_ PL_no_func, "getpwent");
5480 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5485 DIE(aTHX_ PL_no_func, "setpwent");
5491 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5496 DIE(aTHX_ PL_no_func, "endpwent");
5505 DIE(aTHX_ PL_no_func, "getgrnam");
5514 DIE(aTHX_ PL_no_func, "getgrgid");
5522 I32 which = PL_op->op_type;
5523 register char **elem;
5525 struct group *grent;
5527 if (which == OP_GGRNAM) {
5528 char* name = POPpbytex;
5529 grent = (struct group *)getgrnam(name);
5531 else if (which == OP_GGRGID) {
5533 grent = (struct group *)getgrgid(gid);
5537 grent = (struct group *)getgrent();
5539 DIE(aTHX_ PL_no_func, "getgrent");
5543 if (GIMME != G_ARRAY) {
5544 PUSHs(sv = sv_newmortal());
5546 if (which == OP_GGRNAM)
5547 sv_setiv(sv, (IV)grent->gr_gid);
5549 sv_setpv(sv, grent->gr_name);
5555 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5556 sv_setpv(sv, grent->gr_name);
5558 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5560 sv_setpv(sv, grent->gr_passwd);
5563 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5564 sv_setiv(sv, (IV)grent->gr_gid);
5566 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5567 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5568 /* In UNICOS/mk (_CRAYMPP) the multithreading
5569 * versions (getgrnam_r, getgrgid_r)
5570 * seem to return an illegal pointer
5571 * as the group members list, gr_mem.
5572 * getgrent() doesn't even have a _r version
5573 * but the gr_mem is poisonous anyway.
5574 * So yes, you cannot get the list of group
5575 * members if building multithreaded in UNICOS/mk. */
5576 for (elem = grent->gr_mem; elem && *elem; elem++) {
5577 sv_catpv(sv, *elem);
5579 sv_catpvn(sv, " ", 1);
5586 DIE(aTHX_ PL_no_func, "getgrent");
5592 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5597 DIE(aTHX_ PL_no_func, "setgrent");
5603 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5608 DIE(aTHX_ PL_no_func, "endgrent");
5618 if (!(tmps = PerlProc_getlogin()))
5620 PUSHp(tmps, strlen(tmps));
5623 DIE(aTHX_ PL_no_func, "getlogin");
5627 /* Miscellaneous. */
5632 dSP; dMARK; dORIGMARK; dTARGET;
5633 register I32 items = SP - MARK;
5634 unsigned long a[20];
5639 while (++MARK <= SP) {
5640 if (SvTAINTED(*MARK)) {
5646 TAINT_PROPER("syscall");
5649 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5650 * or where sizeof(long) != sizeof(char*). But such machines will
5651 * not likely have syscall implemented either, so who cares?
5653 while (++MARK <= SP) {
5654 if (SvNIOK(*MARK) || !i)
5655 a[i++] = SvIV(*MARK);
5656 else if (*MARK == &PL_sv_undef)
5659 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5665 DIE(aTHX_ "Too many args to syscall");
5667 DIE(aTHX_ "Too few args to syscall");
5669 retval = syscall(a[0]);
5672 retval = syscall(a[0],a[1]);
5675 retval = syscall(a[0],a[1],a[2]);
5678 retval = syscall(a[0],a[1],a[2],a[3]);
5681 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5684 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5687 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5690 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5694 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5697 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5700 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5704 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5708 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5712 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5713 a[10],a[11],a[12],a[13]);
5715 #endif /* atarist */
5721 DIE(aTHX_ PL_no_func, "syscall");
5725 #ifdef FCNTL_EMULATE_FLOCK
5727 /* XXX Emulate flock() with fcntl().
5728 What's really needed is a good file locking module.
5732 fcntl_emulate_flock(int fd, int operation)
5736 switch (operation & ~LOCK_NB) {
5738 flock.l_type = F_RDLCK;
5741 flock.l_type = F_WRLCK;
5744 flock.l_type = F_UNLCK;
5750 flock.l_whence = SEEK_SET;
5751 flock.l_start = flock.l_len = (Off_t)0;
5753 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5756 #endif /* FCNTL_EMULATE_FLOCK */
5758 #ifdef LOCKF_EMULATE_FLOCK
5760 /* XXX Emulate flock() with lockf(). This is just to increase
5761 portability of scripts. The calls are not completely
5762 interchangeable. What's really needed is a good file
5766 /* The lockf() constants might have been defined in <unistd.h>.
5767 Unfortunately, <unistd.h> causes troubles on some mixed
5768 (BSD/POSIX) systems, such as SunOS 4.1.3.
5770 Further, the lockf() constants aren't POSIX, so they might not be
5771 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5772 just stick in the SVID values and be done with it. Sigh.
5776 # define F_ULOCK 0 /* Unlock a previously locked region */
5779 # define F_LOCK 1 /* Lock a region for exclusive use */
5782 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5785 # define F_TEST 3 /* Test a region for other processes locks */
5789 lockf_emulate_flock(int fd, int operation)
5795 /* flock locks entire file so for lockf we need to do the same */
5797 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5798 if (pos > 0) /* is seekable and needs to be repositioned */
5799 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5800 pos = -1; /* seek failed, so don't seek back afterwards */
5803 switch (operation) {
5805 /* LOCK_SH - get a shared lock */
5807 /* LOCK_EX - get an exclusive lock */
5809 i = lockf (fd, F_LOCK, 0);
5812 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5813 case LOCK_SH|LOCK_NB:
5814 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5815 case LOCK_EX|LOCK_NB:
5816 i = lockf (fd, F_TLOCK, 0);
5818 if ((errno == EAGAIN) || (errno == EACCES))
5819 errno = EWOULDBLOCK;
5822 /* LOCK_UN - unlock (non-blocking is a no-op) */
5824 case LOCK_UN|LOCK_NB:
5825 i = lockf (fd, F_ULOCK, 0);
5828 /* Default - can't decipher operation */
5835 if (pos > 0) /* need to restore position of the handle */
5836 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5841 #endif /* LOCKF_EMULATE_FLOCK */
5845 * c-indentation-style: bsd
5847 * indent-tabs-mode: t
5850 * ex: set ts=8 sts=4 sw=4 noet: