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)
347 else if (gimme == G_SCALAR) {
350 PL_rs = &PL_sv_undef;
351 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
352 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
363 if (sv_gets(sv, fp, 0) == Nullch) {
367 XPUSHs(sv_2mortal(sv));
368 if (SvLEN(sv) - SvCUR(sv) > 20) {
369 SvPV_shrink_to_cur(sv);
374 STATUS_NATIVE_SET(PerlProc_pclose(fp));
375 TAINT; /* "I believe that this is not gratuitous!" */
378 STATUS_NATIVE_SET(-1);
379 if (gimme == G_SCALAR)
390 tryAMAGICunTARGET(iter, -1);
392 /* Note that we only ever get here if File::Glob fails to load
393 * without at the same time croaking, for some reason, or if
394 * perl was built with PERL_EXTERNAL_GLOB */
401 * The external globbing program may use things we can't control,
402 * so for security reasons we must assume the worst.
405 taint_proper(PL_no_security, "glob");
409 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
410 PL_last_in_gv = (GV*)*PL_stack_sp--;
412 SAVESPTR(PL_rs); /* This is not permanent, either. */
413 PL_rs = sv_2mortal(newSVpvn("\000", 1));
416 *SvPVX(PL_rs) = '\n';
420 result = do_readline();
427 PL_last_in_gv = cGVOP_gv;
428 return do_readline();
437 if (SP - MARK != 1) {
439 do_join(TARG, &PL_sv_no, MARK, SP);
446 tmps = SvPV_const(tmpsv, len);
447 if ((!tmps || !len) && PL_errgv) {
449 SvUPGRADE(error, SVt_PV);
450 if (SvPOK(error) && SvCUR(error))
451 sv_catpv(error, "\t...caught");
453 tmps = SvPV_const(tmpsv, len);
456 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
458 Perl_warn(aTHX_ "%"SVf, tmpsv);
470 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
472 if (SP - MARK != 1) {
474 do_join(TARG, &PL_sv_no, MARK, SP);
476 tmps = SvPV_const(tmpsv, len);
482 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
486 SvUPGRADE(error, SVt_PV);
487 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
489 SvSetSV(error,tmpsv);
490 else if (sv_isobject(error)) {
491 HV *stash = SvSTASH(SvRV(error));
492 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
494 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
495 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
502 call_sv((SV*)GvCV(gv),
503 G_SCALAR|G_EVAL|G_KEEPERR);
504 sv_setsv(error,*PL_stack_sp--);
510 if (SvPOK(error) && SvCUR(error))
511 sv_catpv(error, "\t...propagated");
513 tmps = SvPV_const(tmpsv, len);
517 tmpsv = sv_2mortal(newSVpvn("Died", 4));
519 DIE(aTHX_ "%"SVf, tmpsv);
539 DIE(aTHX_ PL_no_usym, "filehandle");
540 if ((io = GvIOp(gv)))
541 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
543 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
544 /* Method's args are same as ours ... */
545 /* ... except handle is replaced by the object */
546 *MARK-- = SvTIED_obj((SV*)io, mg);
550 call_method("OPEN", G_SCALAR);
563 tmps = SvPV_const(sv, len);
564 ok = do_openn(gv, (char *)tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
567 PUSHi( (I32)PL_forkprocess );
568 else if (PL_forkprocess == 0) /* we are a new child */
587 if (gv && (io = GvIO(gv))
588 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
591 XPUSHs(SvTIED_obj((SV*)io, mg));
594 call_method("CLOSE", G_SCALAR);
600 PUSHs(boolSV(do_close(gv, TRUE)));
620 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
621 DIE(aTHX_ PL_no_usym, "filehandle");
626 do_close(rgv, FALSE);
628 do_close(wgv, FALSE);
630 if (PerlProc_pipe(fd) < 0)
633 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
634 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
635 IoOFP(rstio) = IoIFP(rstio);
636 IoIFP(wstio) = IoOFP(wstio);
637 IoTYPE(rstio) = IoTYPE_RDONLY;
638 IoTYPE(wstio) = IoTYPE_WRONLY;
640 if (!IoIFP(rstio) || !IoOFP(wstio)) {
641 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
642 else PerlLIO_close(fd[0]);
643 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
644 else PerlLIO_close(fd[1]);
647 #if defined(HAS_FCNTL) && defined(F_SETFD)
648 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
649 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
656 DIE(aTHX_ PL_no_func, "pipe");
672 if (gv && (io = GvIO(gv))
673 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
676 XPUSHs(SvTIED_obj((SV*)io, mg));
679 call_method("FILENO", G_SCALAR);
685 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
686 /* Can't do this because people seem to do things like
687 defined(fileno($foo)) to check whether $foo is a valid fh.
688 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
689 report_evil_fh(gv, io, PL_op->op_type);
694 PUSHi(PerlIO_fileno(fp));
706 anum = PerlLIO_umask(0);
707 (void)PerlLIO_umask(anum);
710 anum = PerlLIO_umask(POPi);
711 TAINT_PROPER("umask");
714 /* Only DIE if trying to restrict permissions on "user" (self).
715 * Otherwise it's harmless and more useful to just return undef
716 * since 'group' and 'other' concepts probably don't exist here. */
717 if (MAXARG >= 1 && (POPi & 0700))
718 DIE(aTHX_ "umask not implemented");
719 XPUSHs(&PL_sv_undef);
741 if (gv && (io = GvIO(gv))
742 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
745 XPUSHs(SvTIED_obj((SV*)io, mg));
750 call_method("BINMODE", G_SCALAR);
757 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
758 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
759 report_evil_fh(gv, io, PL_op->op_type);
760 SETERRNO(EBADF,RMS_IFI);
765 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
766 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
767 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
768 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
769 mode_from_discipline(discp),
770 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
791 const I32 markoff = MARK - PL_stack_base;
792 const char *methname;
793 int how = PERL_MAGIC_tied;
797 switch(SvTYPE(varsv)) {
799 methname = "TIEHASH";
800 HvEITER_set((HV *)varsv, 0);
803 methname = "TIEARRAY";
806 #ifdef GV_UNIQUE_CHECK
807 if (GvUNIQUE((GV*)varsv)) {
808 Perl_croak(aTHX_ "Attempt to tie unique GV");
811 methname = "TIEHANDLE";
812 how = PERL_MAGIC_tiedscalar;
813 /* For tied filehandles, we apply tiedscalar magic to the IO
814 slot of the GP rather than the GV itself. AMS 20010812 */
816 GvIOp(varsv) = newIO();
817 varsv = (SV *)GvIOp(varsv);
820 methname = "TIESCALAR";
821 how = PERL_MAGIC_tiedscalar;
825 if (sv_isobject(*MARK)) {
827 PUSHSTACKi(PERLSI_MAGIC);
829 EXTEND(SP,(I32)items);
833 call_method(methname, G_SCALAR);
836 /* Not clear why we don't call call_method here too.
837 * perhaps to get different error message ?
839 stash = gv_stashsv(*MARK, FALSE);
840 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
841 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
845 PUSHSTACKi(PERLSI_MAGIC);
847 EXTEND(SP,(I32)items);
851 call_sv((SV*)GvCV(gv), G_SCALAR);
857 if (sv_isobject(sv)) {
858 sv_unmagic(varsv, how);
859 /* Croak if a self-tie on an aggregate is attempted. */
860 if (varsv == SvRV(sv) &&
861 (SvTYPE(varsv) == SVt_PVAV ||
862 SvTYPE(varsv) == SVt_PVHV))
864 "Self-ties of arrays and hashes are not supported");
865 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
868 SP = PL_stack_base + markoff;
878 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
879 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
881 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
884 if ((mg = SvTIED_mg(sv, how))) {
885 SV *obj = SvRV(SvTIED_obj(sv, mg));
889 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
890 isGV(gv) && (cv = GvCV(gv))) {
892 XPUSHs(SvTIED_obj((SV*)gv, mg));
893 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
896 call_sv((SV *)cv, G_VOID);
900 else if (ckWARN(WARN_UNTIE)) {
901 if (mg && SvREFCNT(obj) > 1)
902 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
903 "untie attempted while %"UVuf" inner references still exist",
904 (UV)SvREFCNT(obj) - 1 ) ;
908 sv_unmagic(sv, how) ;
917 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
918 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
920 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
923 if ((mg = SvTIED_mg(sv, how))) {
924 SV *osv = SvTIED_obj(sv, mg);
925 if (osv == mg->mg_obj)
926 osv = sv_mortalcopy(osv);
944 sv = sv_mortalcopy(&PL_sv_no);
945 sv_setpv(sv, "AnyDBM_File");
946 stash = gv_stashsv(sv, FALSE);
947 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
949 require_pv("AnyDBM_File.pm");
951 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
952 DIE(aTHX_ "No dbm on this machine");
962 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
964 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
967 call_sv((SV*)GvCV(gv), G_SCALAR);
970 if (!sv_isobject(TOPs)) {
975 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
978 call_sv((SV*)GvCV(gv), G_SCALAR);
982 if (sv_isobject(TOPs)) {
983 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
984 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1006 struct timeval timebuf;
1007 struct timeval *tbuf = &timebuf;
1010 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1015 # if BYTEORDER & 0xf0000
1016 # define ORDERBYTE (0x88888888 - BYTEORDER)
1018 # define ORDERBYTE (0x4444 - BYTEORDER)
1024 for (i = 1; i <= 3; i++) {
1026 if (SvOK(sv) && SvREADONLY(sv)) {
1028 sv_force_normal_flags(sv, 0);
1030 DIE(aTHX_ PL_no_modify);
1039 /* little endians can use vecs directly */
1040 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1047 masksize = NFDBITS / NBBY;
1049 masksize = sizeof(long); /* documented int, everyone seems to use long */
1051 Zero(&fd_sets[0], 4, char*);
1054 # if SELECT_MIN_BITS == 1
1055 growsize = sizeof(fd_set);
1057 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1058 # undef SELECT_MIN_BITS
1059 # define SELECT_MIN_BITS __FD_SETSIZE
1061 /* If SELECT_MIN_BITS is greater than one we most probably will want
1062 * to align the sizes with SELECT_MIN_BITS/8 because for example
1063 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1064 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1065 * on (sets/tests/clears bits) is 32 bits. */
1066 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1074 timebuf.tv_sec = (long)value;
1075 value -= (NV)timebuf.tv_sec;
1076 timebuf.tv_usec = (long)(value * 1000000.0);
1079 tbuf = Null(struct timeval*);
1081 for (i = 1; i <= 3; i++) {
1087 else if (!SvPOK(sv))
1088 SvPV_force_nolen(sv); /* force string conversion */
1091 Sv_Grow(sv, growsize);
1095 while (++j <= growsize) {
1099 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1101 New(403, fd_sets[i], growsize, char);
1102 for (offset = 0; offset < growsize; offset += masksize) {
1103 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1104 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1107 fd_sets[i] = SvPVX(sv);
1111 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1112 /* Can't make just the (void*) conditional because that would be
1113 * cpp #if within cpp macro, and not all compilers like that. */
1114 nfound = PerlSock_select(
1116 (Select_fd_set_t) fd_sets[1],
1117 (Select_fd_set_t) fd_sets[2],
1118 (Select_fd_set_t) fd_sets[3],
1119 (void*) tbuf); /* Workaround for compiler bug. */
1121 nfound = PerlSock_select(
1123 (Select_fd_set_t) fd_sets[1],
1124 (Select_fd_set_t) fd_sets[2],
1125 (Select_fd_set_t) fd_sets[3],
1128 for (i = 1; i <= 3; i++) {
1131 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1133 for (offset = 0; offset < growsize; offset += masksize) {
1134 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1135 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1137 Safefree(fd_sets[i]);
1144 PUSHs(&PL_sv_undef);
1147 if (GIMME == G_ARRAY && tbuf) {
1148 value = (NV)(timebuf.tv_sec) +
1149 (NV)(timebuf.tv_usec) / 1000000.0;
1150 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1151 sv_setnv(sv, value);
1155 DIE(aTHX_ "select not implemented");
1160 Perl_setdefout(pTHX_ GV *gv)
1163 (void)SvREFCNT_inc(gv);
1165 SvREFCNT_dec(PL_defoutgv);
1175 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1177 egv = GvEGV(PL_defoutgv);
1182 XPUSHs(&PL_sv_undef);
1184 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1185 if (gvp && *gvp == egv) {
1186 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1190 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1195 if (!GvIO(newdefout))
1196 gv_IOadd(newdefout);
1197 setdefout(newdefout);
1215 if (gv && (io = GvIO(gv))
1216 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1218 const I32 gimme = GIMME_V;
1220 XPUSHs(SvTIED_obj((SV*)io, mg));
1223 call_method("GETC", gimme);
1226 if (gimme == G_SCALAR)
1227 SvSetMagicSV_nosteal(TARG, TOPs);
1230 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1231 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1232 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1233 report_evil_fh(gv, io, PL_op->op_type);
1234 SETERRNO(EBADF,RMS_IFI);
1238 sv_setpvn(TARG, " ", 1);
1239 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1240 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1241 /* Find out how many bytes the char needs */
1242 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1245 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1246 SvCUR_set(TARG,1+len);
1256 return pp_sysread();
1260 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1263 register PERL_CONTEXT *cx;
1264 const I32 gimme = GIMME_V;
1269 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1271 cx->blk_sub.retop = retop;
1272 PAD_SET_CUR(CvPADLIST(cv), 1);
1274 setdefout(gv); /* locally select filehandle so $% et al work */
1306 SV * const tmpsv = sv_newmortal();
1308 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1309 name = SvPV_nolen_const(tmpsv);
1311 DIE(aTHX_ "Undefined format \"%s\" called", name);
1313 DIE(aTHX_ "Not a format reference");
1316 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1318 IoFLAGS(io) &= ~IOf_DIDTOP;
1319 return doform(cv,gv,PL_op->op_next);
1325 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1326 register IO *io = GvIOp(gv);
1327 PerlIO *ofp = IoOFP(io);
1331 register PERL_CONTEXT *cx;
1333 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1334 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1337 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1338 PL_formtarget != PL_toptarget)
1342 if (!IoTOP_GV(io)) {
1346 if (!IoTOP_NAME(io)) {
1347 if (!IoFMT_NAME(io))
1348 IoFMT_NAME(io) = savepv(GvNAME(gv));
1349 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1350 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1351 if ((topgv && GvFORM(topgv)) ||
1352 !gv_fetchpv("top",FALSE,SVt_PVFM))
1353 IoTOP_NAME(io) = savesvpv(topname);
1355 IoTOP_NAME(io) = savepvn("top", 3);
1357 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1358 if (!topgv || !GvFORM(topgv)) {
1359 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1362 IoTOP_GV(io) = topgv;
1364 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1365 I32 lines = IoLINES_LEFT(io);
1366 const char *s = SvPVX_const(PL_formtarget);
1367 if (lines <= 0) /* Yow, header didn't even fit!!! */
1369 while (lines-- > 0) {
1370 s = strchr(s, '\n');
1376 const STRLEN save = SvCUR(PL_formtarget);
1377 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1378 do_print(PL_formtarget, ofp);
1379 SvCUR_set(PL_formtarget, save);
1380 sv_chop(PL_formtarget, s);
1381 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1384 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1385 do_print(PL_formfeed, ofp);
1386 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1388 PL_formtarget = PL_toptarget;
1389 IoFLAGS(io) |= IOf_DIDTOP;
1392 DIE(aTHX_ "bad top format reference");
1395 SV * const sv = sv_newmortal();
1397 gv_efullname4(sv, fgv, Nullch, FALSE);
1398 name = SvPV_nolen_const(sv);
1400 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1404 DIE(aTHX_ "Undefined top format called");
1407 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1408 return doform(cv,gv,PL_op);
1412 POPBLOCK(cx,PL_curpm);
1418 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1420 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1421 else if (ckWARN(WARN_CLOSED))
1422 report_evil_fh(gv, io, PL_op->op_type);
1427 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1428 if (ckWARN(WARN_IO))
1429 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1431 if (!do_print(PL_formtarget, fp))
1434 FmLINES(PL_formtarget) = 0;
1435 SvCUR_set(PL_formtarget, 0);
1436 *SvEND(PL_formtarget) = '\0';
1437 if (IoFLAGS(io) & IOf_FLUSH)
1438 (void)PerlIO_flush(fp);
1443 PL_formtarget = PL_bodytarget;
1445 return cx->blk_sub.retop;
1450 dVAR; dSP; dMARK; dORIGMARK;
1457 if (PL_op->op_flags & OPf_STACKED)
1462 if (gv && (io = GvIO(gv))
1463 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1465 if (MARK == ORIGMARK) {
1468 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1472 *MARK = SvTIED_obj((SV*)io, mg);
1475 call_method("PRINTF", G_SCALAR);
1478 MARK = ORIGMARK + 1;
1485 if (!(io = GvIO(gv))) {
1486 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1487 report_evil_fh(gv, io, PL_op->op_type);
1488 SETERRNO(EBADF,RMS_IFI);
1491 else if (!(fp = IoOFP(io))) {
1492 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1494 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1495 else if (ckWARN(WARN_CLOSED))
1496 report_evil_fh(gv, io, PL_op->op_type);
1498 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1502 do_sprintf(sv, SP - MARK, MARK + 1);
1503 if (!do_print(sv, fp))
1506 if (IoFLAGS(io) & IOf_FLUSH)
1507 if (PerlIO_flush(fp) == EOF)
1518 PUSHs(&PL_sv_undef);
1529 const int perm = (MAXARG > 3) ? POPi : 0666;
1530 const int mode = POPi;
1535 /* Need TIEHANDLE method ? */
1537 tmps = SvPV_const(sv, len);
1538 /* FIXME? do_open should do const */
1539 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
1540 IoLINES(GvIOp(gv)) = 0;
1544 PUSHs(&PL_sv_undef);
1551 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1558 Sock_size_t bufsize;
1567 bool charstart = FALSE;
1568 STRLEN charskip = 0;
1572 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1573 && gv && (io = GvIO(gv))
1574 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1579 *MARK = SvTIED_obj((SV*)io, mg);
1581 call_method("READ", G_SCALAR);
1594 sv_setpvn(bufsv, "", 0);
1595 length = SvIVx(*++MARK);
1598 offset = SvIVx(*++MARK);
1602 if (!io || !IoIFP(io)) {
1603 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1604 report_evil_fh(gv, io, PL_op->op_type);
1605 SETERRNO(EBADF,RMS_IFI);
1608 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1609 buffer = SvPVutf8_force(bufsv, blen);
1610 /* UTF-8 may not have been set if they are all low bytes */
1615 buffer = SvPV_force(bufsv, blen);
1616 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1619 DIE(aTHX_ "Negative length");
1627 if (PL_op->op_type == OP_RECV) {
1628 char namebuf[MAXPATHLEN];
1629 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1630 bufsize = sizeof (struct sockaddr_in);
1632 bufsize = sizeof namebuf;
1634 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1638 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1639 /* 'offset' means 'flags' here */
1640 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1641 (struct sockaddr *)namebuf, &bufsize);
1645 /* Bogus return without padding */
1646 bufsize = sizeof (struct sockaddr_in);
1648 SvCUR_set(bufsv, count);
1649 *SvEND(bufsv) = '\0';
1650 (void)SvPOK_only(bufsv);
1654 /* This should not be marked tainted if the fp is marked clean */
1655 if (!(IoFLAGS(io) & IOf_UNTAINT))
1656 SvTAINTED_on(bufsv);
1658 sv_setpvn(TARG, namebuf, bufsize);
1663 if (PL_op->op_type == OP_RECV)
1664 DIE(aTHX_ PL_no_sock_func, "recv");
1666 if (DO_UTF8(bufsv)) {
1667 /* offset adjust in characters not bytes */
1668 blen = sv_len_utf8(bufsv);
1671 if (-offset > (int)blen)
1672 DIE(aTHX_ "Offset outside string");
1675 if (DO_UTF8(bufsv)) {
1676 /* convert offset-as-chars to offset-as-bytes */
1677 if (offset >= (int)blen)
1678 offset += SvCUR(bufsv) - blen;
1680 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1683 bufsize = SvCUR(bufsv);
1684 /* Allocating length + offset + 1 isn't perfect in the case of reading
1685 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1687 (should be 2 * length + offset + 1, or possibly something longer if
1688 PL_encoding is true) */
1689 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1690 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1691 Zero(buffer+bufsize, offset-bufsize, char);
1693 buffer = buffer + offset;
1695 read_target = bufsv;
1697 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1698 concatenate it to the current buffer. */
1700 /* Truncate the existing buffer to the start of where we will be
1702 SvCUR_set(bufsv, offset);
1704 read_target = sv_newmortal();
1705 SvUPGRADE(read_target, SVt_PV);
1706 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1709 if (PL_op->op_type == OP_SYSREAD) {
1710 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1711 if (IoTYPE(io) == IoTYPE_SOCKET) {
1712 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1718 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1723 #ifdef HAS_SOCKET__bad_code_maybe
1724 if (IoTYPE(io) == IoTYPE_SOCKET) {
1725 char namebuf[MAXPATHLEN];
1726 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1727 bufsize = sizeof (struct sockaddr_in);
1729 bufsize = sizeof namebuf;
1731 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1732 (struct sockaddr *)namebuf, &bufsize);
1737 count = PerlIO_read(IoIFP(io), buffer, length);
1738 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1739 if (count == 0 && PerlIO_error(IoIFP(io)))
1743 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1744 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1747 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1748 *SvEND(read_target) = '\0';
1749 (void)SvPOK_only(read_target);
1750 if (fp_utf8 && !IN_BYTES) {
1751 /* Look at utf8 we got back and count the characters */
1752 const char *bend = buffer + count;
1753 while (buffer < bend) {
1755 skip = UTF8SKIP(buffer);
1758 if (buffer - charskip + skip > bend) {
1759 /* partial character - try for rest of it */
1760 length = skip - (bend-buffer);
1761 offset = bend - SvPVX_const(bufsv);
1773 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1774 provided amount read (count) was what was requested (length)
1776 if (got < wanted && count == length) {
1777 length = wanted - got;
1778 offset = bend - SvPVX_const(bufsv);
1781 /* return value is character count */
1785 else if (buffer_utf8) {
1786 /* Let svcatsv upgrade the bytes we read in to utf8.
1787 The buffer is a mortal so will be freed soon. */
1788 sv_catsv_nomg(bufsv, read_target);
1791 /* This should not be marked tainted if the fp is marked clean */
1792 if (!(IoFLAGS(io) & IOf_UNTAINT))
1793 SvTAINTED_on(bufsv);
1806 const int items = (SP - PL_stack_base) - TOPMARK;
1810 sv = sv_2mortal(newSViv(sv_len(*SP)));
1819 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1830 if (PL_op->op_type == OP_SYSWRITE
1831 && gv && (io = GvIO(gv))
1832 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1837 *MARK = SvTIED_obj((SV*)io, mg);
1839 call_method("WRITE", G_SCALAR);
1850 #if Size_t_size > IVSIZE
1851 length = (Size_t)SvNVx(*++MARK);
1853 length = (Size_t)SvIVx(*++MARK);
1855 if ((SSize_t)length < 0)
1856 DIE(aTHX_ "Negative length");
1859 if (!io || !IoIFP(io)) {
1861 if (ckWARN(WARN_CLOSED))
1862 report_evil_fh(gv, io, PL_op->op_type);
1863 SETERRNO(EBADF,RMS_IFI);
1867 if (PerlIO_isutf8(IoIFP(io))) {
1868 if (!SvUTF8(bufsv)) {
1869 bufsv = sv_2mortal(newSVsv(bufsv));
1870 buffer = sv_2pvutf8(bufsv, &blen);
1872 buffer = SvPV_const(bufsv, blen);
1875 if (DO_UTF8(bufsv)) {
1876 /* Not modifying source SV, so making a temporary copy. */
1877 bufsv = sv_2mortal(newSVsv(bufsv));
1878 sv_utf8_downgrade(bufsv, FALSE);
1880 buffer = SvPV_const(bufsv, blen);
1883 if (PL_op->op_type == OP_SYSWRITE) {
1885 if (DO_UTF8(bufsv)) {
1886 /* length and offset are in chars */
1887 blen = sv_len_utf8(bufsv);
1890 offset = SvIVx(*++MARK);
1892 if (-offset > (IV)blen)
1893 DIE(aTHX_ "Offset outside string");
1895 } else if (offset >= (IV)blen && blen > 0)
1896 DIE(aTHX_ "Offset outside string");
1899 if (length > blen - offset)
1900 length = blen - offset;
1901 if (DO_UTF8(bufsv)) {
1902 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1903 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1906 buffer = buffer+offset;
1908 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1909 if (IoTYPE(io) == IoTYPE_SOCKET) {
1910 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1916 /* See the note at doio.c:do_print about filesize limits. --jhi */
1917 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1922 else if (SP > MARK) {
1924 char * const sockbuf = SvPVx(*++MARK, mlen);
1925 /* length is really flags */
1926 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1927 length, (struct sockaddr *)sockbuf, mlen);
1930 /* length is really flags */
1931 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1934 DIE(aTHX_ PL_no_sock_func, "send");
1940 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1941 #if Size_t_size > IVSIZE
1955 return pp_sysread();
1966 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1968 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1970 if (io && !IoIFP(io)) {
1971 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1973 IoFLAGS(io) &= ~IOf_START;
1974 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1975 sv_setpvn(GvSV(gv), "-", 1);
1976 SvSETMAGIC(GvSV(gv));
1978 else if (!nextargv(gv))
1983 gv = PL_last_in_gv; /* eof */
1986 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1988 if (gv && (io = GvIO(gv))
1989 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1992 XPUSHs(SvTIED_obj((SV*)io, mg));
1995 call_method("EOF", G_SCALAR);
2001 PUSHs(boolSV(!gv || do_eof(gv)));
2015 gv = PL_last_in_gv = (GV*)POPs;
2017 if (gv && (io = GvIO(gv))
2018 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2021 XPUSHs(SvTIED_obj((SV*)io, mg));
2024 call_method("TELL", G_SCALAR);
2030 #if LSEEKSIZE > IVSIZE
2031 PUSHn( do_tell(gv) );
2033 PUSHi( do_tell(gv) );
2040 return pp_sysseek();
2048 const int whence = POPi;
2049 #if LSEEKSIZE > IVSIZE
2050 Off_t offset = (Off_t)SvNVx(POPs);
2052 Off_t offset = (Off_t)SvIVx(POPs);
2056 gv = PL_last_in_gv = (GV*)POPs;
2058 if (gv && (io = GvIO(gv))
2059 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2062 XPUSHs(SvTIED_obj((SV*)io, mg));
2063 #if LSEEKSIZE > IVSIZE
2064 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2066 XPUSHs(sv_2mortal(newSViv(offset)));
2068 XPUSHs(sv_2mortal(newSViv(whence)));
2071 call_method("SEEK", G_SCALAR);
2077 if (PL_op->op_type == OP_SEEK)
2078 PUSHs(boolSV(do_seek(gv, offset, whence)));
2080 Off_t sought = do_sysseek(gv, offset, whence);
2082 PUSHs(&PL_sv_undef);
2085 #if LSEEKSIZE > IVSIZE
2090 : newSVpvn(zero_but_true, ZBTLEN);
2091 PUSHs(sv_2mortal(sv));
2100 /* There seems to be no consensus on the length type of truncate()
2101 * and ftruncate(), both off_t and size_t have supporters. In
2102 * general one would think that when using large files, off_t is
2103 * at least as wide as size_t, so using an off_t should be okay. */
2104 /* XXX Configure probe for the length type of *truncate() needed XXX */
2107 #if Off_t_size > IVSIZE
2112 /* Checking for length < 0 is problematic as the type might or
2113 * might not be signed: if it is not, clever compilers will moan. */
2114 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2121 if (PL_op->op_flags & OPf_SPECIAL) {
2122 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2131 TAINT_PROPER("truncate");
2132 if (!(fp = IoIFP(io))) {
2138 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2140 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2150 if (SvTYPE(sv) == SVt_PVGV) {
2151 tmpgv = (GV*)sv; /* *main::FRED for example */
2152 goto do_ftruncate_gv;
2154 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2155 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2156 goto do_ftruncate_gv;
2158 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2159 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2160 goto do_ftruncate_io;
2163 name = SvPV_nolen_const(sv);
2164 TAINT_PROPER("truncate");
2166 if (truncate(name, len) < 0)
2172 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2175 if (my_chsize(tmpfd, len) < 0)
2177 PerlLIO_close(tmpfd);
2186 SETERRNO(EBADF,RMS_IFI);
2200 const unsigned int func = POPu;
2201 const int optype = PL_op->op_type;
2205 IO *io = gv ? GvIOn(gv) : 0;
2207 if (!io || !argsv || !IoIFP(io)) {
2208 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2209 report_evil_fh(gv, io, PL_op->op_type);
2210 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2214 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2217 s = SvPV_force(argsv, len);
2218 need = IOCPARM_LEN(func);
2220 s = Sv_Grow(argsv, need + 1);
2221 SvCUR_set(argsv, need);
2224 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2227 retval = SvIV(argsv);
2228 s = INT2PTR(char*,retval); /* ouch */
2231 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2233 if (optype == OP_IOCTL)
2235 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2237 DIE(aTHX_ "ioctl is not implemented");
2241 DIE(aTHX_ "fcntl is not implemented");
2243 #if defined(OS2) && defined(__EMX__)
2244 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2246 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2250 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2252 if (s[SvCUR(argsv)] != 17)
2253 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2255 s[SvCUR(argsv)] = 0; /* put our null back */
2256 SvSETMAGIC(argsv); /* Assume it has changed */
2265 PUSHp(zero_but_true, ZBTLEN);
2286 if (gv && (io = GvIO(gv)))
2293 (void)PerlIO_flush(fp);
2294 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2297 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2298 report_evil_fh(gv, io, PL_op->op_type);
2300 SETERRNO(EBADF,RMS_IFI);
2305 DIE(aTHX_ PL_no_func, "flock()");
2317 int protocol = POPi;
2323 io = gv ? GvIOn(gv) : NULL;
2326 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2327 report_evil_fh(gv, io, PL_op->op_type);
2329 do_close(gv, FALSE);
2330 SETERRNO(EBADF,LIB_INVARG);
2335 do_close(gv, FALSE);
2337 TAINT_PROPER("socket");
2338 fd = PerlSock_socket(domain, type, protocol);
2341 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2342 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2343 IoTYPE(io) = IoTYPE_SOCKET;
2344 if (!IoIFP(io) || !IoOFP(io)) {
2345 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2346 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2347 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2350 #if defined(HAS_FCNTL) && defined(F_SETFD)
2351 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2355 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2360 DIE(aTHX_ PL_no_sock_func, "socket");
2366 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2372 int protocol = POPi;
2379 io1 = gv1 ? GvIOn(gv1) : NULL;
2380 io2 = gv2 ? GvIOn(gv2) : NULL;
2381 if (!gv1 || !gv2 || !io1 || !io2) {
2382 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2384 report_evil_fh(gv1, io1, PL_op->op_type);
2386 report_evil_fh(gv1, io2, PL_op->op_type);
2389 do_close(gv1, FALSE);
2391 do_close(gv2, FALSE);
2396 do_close(gv1, FALSE);
2398 do_close(gv2, FALSE);
2400 TAINT_PROPER("socketpair");
2401 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2403 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2404 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2405 IoTYPE(io1) = IoTYPE_SOCKET;
2406 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2407 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2408 IoTYPE(io2) = IoTYPE_SOCKET;
2409 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2410 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2411 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2412 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2413 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2414 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2415 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2418 #if defined(HAS_FCNTL) && defined(F_SETFD)
2419 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2420 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2425 DIE(aTHX_ PL_no_sock_func, "socketpair");
2433 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2434 extern void GETPRIVMODE();
2435 extern void GETUSERMODE();
2438 /* OK, so on what platform does bind modify addr? */
2441 register IO *io = GvIOn(gv);
2445 int mpeprivmode = 0;
2448 if (!io || !IoIFP(io))
2451 addr = SvPV_const(addrsv, len);
2452 TAINT_PROPER("bind");
2453 #ifdef MPE /* Deal with MPE bind() peculiarities */
2454 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2455 /* The address *MUST* stupidly be zero. */
2456 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2457 /* PRIV mode is required to bind() to ports < 1024. */
2458 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2459 ((struct sockaddr_in *)addr)->sin_port > 0) {
2460 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2465 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2466 (struct sockaddr *)addr, len) >= 0)
2469 #ifdef MPE /* Switch back to USER mode */
2480 if (ckWARN(WARN_CLOSED))
2481 report_evil_fh(gv, io, PL_op->op_type);
2482 SETERRNO(EBADF,SS_IVCHAN);
2485 DIE(aTHX_ PL_no_sock_func, "bind");
2496 register IO *io = GvIOn(gv);
2499 if (!io || !IoIFP(io))
2502 addr = SvPV_const(addrsv, len);
2503 TAINT_PROPER("connect");
2504 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2510 if (ckWARN(WARN_CLOSED))
2511 report_evil_fh(gv, io, PL_op->op_type);
2512 SETERRNO(EBADF,SS_IVCHAN);
2515 DIE(aTHX_ PL_no_sock_func, "connect");
2525 register IO *io = gv ? GvIOn(gv) : NULL;
2527 if (!gv || !io || !IoIFP(io))
2530 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2536 if (ckWARN(WARN_CLOSED))
2537 report_evil_fh(gv, io, PL_op->op_type);
2538 SETERRNO(EBADF,SS_IVCHAN);
2541 DIE(aTHX_ PL_no_sock_func, "listen");
2553 char namebuf[MAXPATHLEN];
2554 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2555 Sock_size_t len = sizeof (struct sockaddr_in);
2557 Sock_size_t len = sizeof namebuf;
2570 if (!gstio || !IoIFP(gstio))
2574 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2578 do_close(ngv, FALSE);
2579 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2580 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2581 IoTYPE(nstio) = IoTYPE_SOCKET;
2582 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2583 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2584 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2585 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2588 #if defined(HAS_FCNTL) && defined(F_SETFD)
2589 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2593 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2594 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2596 #ifdef __SCO_VERSION__
2597 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2600 PUSHp(namebuf, len);
2604 if (ckWARN(WARN_CLOSED))
2605 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2606 SETERRNO(EBADF,SS_IVCHAN);
2612 DIE(aTHX_ PL_no_sock_func, "accept");
2622 register IO *io = GvIOn(gv);
2624 if (!io || !IoIFP(io))
2627 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2631 if (ckWARN(WARN_CLOSED))
2632 report_evil_fh(gv, io, PL_op->op_type);
2633 SETERRNO(EBADF,SS_IVCHAN);
2636 DIE(aTHX_ PL_no_sock_func, "shutdown");
2643 return pp_ssockopt();
2645 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2653 int optype = PL_op->op_type;
2656 unsigned int optname;
2662 if (optype == OP_GSOCKOPT)
2663 sv = sv_2mortal(NEWSV(22, 257));
2666 optname = (unsigned int) POPi;
2667 lvl = (unsigned int) POPi;
2671 if (!io || !IoIFP(io))
2674 fd = PerlIO_fileno(IoIFP(io));
2678 (void)SvPOK_only(sv);
2682 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2693 buf = SvPV_const(sv, l);
2697 aint = (int)SvIV(sv);
2698 buf = (const char*)&aint;
2701 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2710 if (ckWARN(WARN_CLOSED))
2711 report_evil_fh(gv, io, optype);
2712 SETERRNO(EBADF,SS_IVCHAN);
2717 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2724 return pp_getpeername();
2726 DIE(aTHX_ PL_no_sock_func, "getsockname");
2734 int optype = PL_op->op_type;
2738 register IO *io = GvIOn(gv);
2741 if (!io || !IoIFP(io))
2744 sv = sv_2mortal(NEWSV(22, 257));
2745 (void)SvPOK_only(sv);
2749 fd = PerlIO_fileno(IoIFP(io));
2751 case OP_GETSOCKNAME:
2752 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2755 case OP_GETPEERNAME:
2756 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2758 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2760 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2761 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2762 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2763 !memcmp((char *)SvPVX_const(sv) + sizeof(u_short), nowhere,
2764 sizeof(u_short) + sizeof(struct in_addr))) {
2771 #ifdef BOGUS_GETNAME_RETURN
2772 /* Interactive Unix, getpeername() and getsockname()
2773 does not return valid namelen */
2774 if (len == BOGUS_GETNAME_RETURN)
2775 len = sizeof(struct sockaddr);
2783 if (ckWARN(WARN_CLOSED))
2784 report_evil_fh(gv, io, optype);
2785 SETERRNO(EBADF,SS_IVCHAN);
2790 DIE(aTHX_ PL_no_sock_func, "getpeername");
2808 if (PL_op->op_flags & OPf_REF) {
2810 if (PL_op->op_type == OP_LSTAT) {
2811 if (gv != PL_defgv) {
2812 if (ckWARN(WARN_IO))
2813 Perl_warner(aTHX_ packWARN(WARN_IO),
2814 "lstat() on filehandle %s", GvENAME(gv));
2815 } else if (PL_laststype != OP_LSTAT)
2816 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2820 if (gv != PL_defgv) {
2821 PL_laststype = OP_STAT;
2823 sv_setpvn(PL_statname, "", 0);
2824 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2825 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2827 if (PL_laststatval < 0) {
2828 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2829 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2835 if (SvTYPE(sv) == SVt_PVGV) {
2839 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2841 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2842 Perl_warner(aTHX_ packWARN(WARN_IO),
2843 "lstat() on filehandle %s", GvENAME(gv));
2846 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2848 PL_laststype = PL_op->op_type;
2849 if (PL_op->op_type == OP_LSTAT)
2850 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2852 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2853 if (PL_laststatval < 0) {
2854 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2855 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2861 if (gimme != G_ARRAY) {
2862 if (gimme != G_VOID)
2863 XPUSHs(boolSV(max));
2869 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2870 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2871 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2872 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2873 #if Uid_t_size > IVSIZE
2874 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2876 # if Uid_t_sign <= 0
2877 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2879 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2882 #if Gid_t_size > IVSIZE
2883 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2885 # if Gid_t_sign <= 0
2886 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2888 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2891 #ifdef USE_STAT_RDEV
2892 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2894 PUSHs(sv_2mortal(newSVpvn("", 0)));
2896 #if Off_t_size > IVSIZE
2897 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2899 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2902 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2903 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2904 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2906 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2907 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2908 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2910 #ifdef USE_STAT_BLOCKS
2911 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2912 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2914 PUSHs(sv_2mortal(newSVpvn("", 0)));
2915 PUSHs(sv_2mortal(newSVpvn("", 0)));
2921 /* This macro is used by the stacked filetest operators :
2922 * if the previous filetest failed, short-circuit and pass its value.
2923 * Else, discard it from the stack and continue. --rgs
2925 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2926 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2927 else { (void)POPs; PUTBACK; } \
2934 STACKED_FTEST_CHECK;
2935 #if defined(HAS_ACCESS) && defined(R_OK)
2936 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2937 result = access(POPpx, R_OK);
2952 if (cando(S_IRUSR, 0, &PL_statcache))
2961 STACKED_FTEST_CHECK;
2962 #if defined(HAS_ACCESS) && defined(W_OK)
2963 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2964 result = access(POPpx, W_OK);
2979 if (cando(S_IWUSR, 0, &PL_statcache))
2988 STACKED_FTEST_CHECK;
2989 #if defined(HAS_ACCESS) && defined(X_OK)
2990 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
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)) {
3018 result = PERL_EFF_ACCESS_R_OK(POPpx);
3033 if (cando(S_IRUSR, 1, &PL_statcache))
3042 STACKED_FTEST_CHECK;
3043 #ifdef PERL_EFF_ACCESS_W_OK
3044 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3045 result = PERL_EFF_ACCESS_W_OK(POPpx);
3060 if (cando(S_IWUSR, 1, &PL_statcache))
3069 STACKED_FTEST_CHECK;
3070 #ifdef PERL_EFF_ACCESS_X_OK
3071 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3072 result = PERL_EFF_ACCESS_X_OK(POPpx);
3087 if (cando(S_IXUSR, 1, &PL_statcache))
3096 STACKED_FTEST_CHECK;
3106 return pp_ftrowned();
3113 STACKED_FTEST_CHECK;
3118 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3128 STACKED_FTEST_CHECK;
3133 if (PL_statcache.st_size == 0)
3142 STACKED_FTEST_CHECK;
3147 #if Off_t_size > IVSIZE
3148 PUSHn(PL_statcache.st_size);
3150 PUSHi(PL_statcache.st_size);
3159 STACKED_FTEST_CHECK;
3164 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3172 STACKED_FTEST_CHECK;
3177 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3185 STACKED_FTEST_CHECK;
3190 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3198 STACKED_FTEST_CHECK;
3203 if (S_ISSOCK(PL_statcache.st_mode))
3212 STACKED_FTEST_CHECK;
3217 if (S_ISCHR(PL_statcache.st_mode))
3226 STACKED_FTEST_CHECK;
3231 if (S_ISBLK(PL_statcache.st_mode))
3240 STACKED_FTEST_CHECK;
3245 if (S_ISREG(PL_statcache.st_mode))
3254 STACKED_FTEST_CHECK;
3259 if (S_ISDIR(PL_statcache.st_mode))
3268 STACKED_FTEST_CHECK;
3273 if (S_ISFIFO(PL_statcache.st_mode))
3280 I32 result = my_lstat();
3284 if (S_ISLNK(PL_statcache.st_mode))
3294 STACKED_FTEST_CHECK;
3299 if (PL_statcache.st_mode & S_ISUID)
3310 STACKED_FTEST_CHECK;
3315 if (PL_statcache.st_mode & S_ISGID)
3326 STACKED_FTEST_CHECK;
3331 if (PL_statcache.st_mode & S_ISVTX)
3344 STACKED_FTEST_CHECK;
3346 if (PL_op->op_flags & OPf_REF)
3348 else if (isGV(TOPs))
3350 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3351 gv = (GV*)SvRV(POPs);
3353 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3355 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3356 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3357 else if (tmpsv && SvOK(tmpsv)) {
3358 const char *tmps = SvPV_nolen_const(tmpsv);
3366 if (PerlLIO_isatty(fd))
3371 #if defined(atarist) /* this will work with atariST. Configure will
3372 make guesses for other systems. */
3373 # define FILE_base(f) ((f)->_base)
3374 # define FILE_ptr(f) ((f)->_ptr)
3375 # define FILE_cnt(f) ((f)->_cnt)
3376 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3386 register STDCHAR *s;
3392 STACKED_FTEST_CHECK;
3394 if (PL_op->op_flags & OPf_REF)
3396 else if (isGV(TOPs))
3398 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3399 gv = (GV*)SvRV(POPs);
3405 if (gv == PL_defgv) {
3407 io = GvIO(PL_statgv);
3410 goto really_filename;
3415 PL_laststatval = -1;
3416 sv_setpvn(PL_statname, "", 0);
3417 io = GvIO(PL_statgv);
3419 if (io && IoIFP(io)) {
3420 if (! PerlIO_has_base(IoIFP(io)))
3421 DIE(aTHX_ "-T and -B not implemented on filehandles");
3422 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3423 if (PL_laststatval < 0)
3425 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3426 if (PL_op->op_type == OP_FTTEXT)
3431 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3432 i = PerlIO_getc(IoIFP(io));
3434 (void)PerlIO_ungetc(IoIFP(io),i);
3436 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3438 len = PerlIO_get_bufsiz(IoIFP(io));
3439 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3440 /* sfio can have large buffers - limit to 512 */
3445 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3447 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3449 SETERRNO(EBADF,RMS_IFI);
3457 PL_laststype = OP_STAT;
3458 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3459 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3460 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3462 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3465 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3466 if (PL_laststatval < 0) {
3467 (void)PerlIO_close(fp);
3470 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3471 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3472 (void)PerlIO_close(fp);
3474 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3475 RETPUSHNO; /* special case NFS directories */
3476 RETPUSHYES; /* null file is anything */
3481 /* now scan s to look for textiness */
3482 /* XXX ASCII dependent code */
3484 #if defined(DOSISH) || defined(USEMYBINMODE)
3485 /* ignore trailing ^Z on short files */
3486 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3490 for (i = 0; i < len; i++, s++) {
3491 if (!*s) { /* null never allowed in text */
3496 else if (!(isPRINT(*s) || isSPACE(*s)))
3499 else if (*s & 128) {
3501 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3504 /* utf8 characters don't count as odd */
3505 if (UTF8_IS_START(*s)) {
3506 int ulen = UTF8SKIP(s);
3507 if (ulen < len - i) {
3509 for (j = 1; j < ulen; j++) {
3510 if (!UTF8_IS_CONTINUATION(s[j]))
3513 --ulen; /* loop does extra increment */
3523 *s != '\n' && *s != '\r' && *s != '\b' &&
3524 *s != '\t' && *s != '\f' && *s != 27)
3529 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3553 if( !tmps || !*tmps ) {
3554 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3555 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3557 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3562 deprecate("chdir('') or chdir(undef) as chdir()");
3563 tmps = SvPV_nolen_const(*svp);
3567 TAINT_PROPER("chdir");
3572 TAINT_PROPER("chdir");
3573 PUSHi( PerlDir_chdir(tmps) >= 0 );
3575 /* Clear the DEFAULT element of ENV so we'll get the new value
3577 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3585 dSP; dMARK; dTARGET;
3586 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3592 DIE(aTHX_ PL_no_func, "chown");
3601 TAINT_PROPER("chroot");
3602 PUSHi( chroot(tmps) >= 0 );
3605 DIE(aTHX_ PL_no_func, "chroot");
3611 dSP; dMARK; dTARGET;
3613 value = (I32)apply(PL_op->op_type, MARK, SP);
3621 dSP; dMARK; dTARGET;
3623 value = (I32)apply(PL_op->op_type, MARK, SP);
3631 dSP; dMARK; dTARGET;
3633 value = (I32)apply(PL_op->op_type, MARK, SP);
3643 const char *tmps2 = POPpconstx;
3644 const char *tmps = SvPV_nolen_const(TOPs);
3645 TAINT_PROPER("rename");
3647 anum = PerlLIO_rename(tmps, tmps2);
3649 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3650 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3653 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3654 (void)UNLINK(tmps2);
3655 if (!(anum = link(tmps, tmps2)))
3656 anum = UNLINK(tmps);
3668 const char *tmps2 = POPpconstx;
3669 const char *tmps = SvPV_nolen_const(TOPs);
3670 TAINT_PROPER("link");
3671 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3674 DIE(aTHX_ PL_no_func, "link");
3682 const char *tmps2 = POPpconstx;
3683 const char *tmps = SvPV_nolen_const(TOPs);
3684 TAINT_PROPER("symlink");
3685 SETi( symlink(tmps, tmps2) >= 0 );
3688 DIE(aTHX_ PL_no_func, "symlink");
3698 char buf[MAXPATHLEN];
3701 #ifndef INCOMPLETE_TAINTS
3705 len = readlink(tmps, buf, sizeof(buf) - 1);
3713 RETSETUNDEF; /* just pretend it's a normal file */
3717 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3719 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3721 char * const save_filename = filename;
3727 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3728 strcpy(cmdline, cmd);
3729 strcat(cmdline, " ");
3730 for (s = cmdline + strlen(cmdline); *filename; ) {
3735 myfp = PerlProc_popen(cmdline, "r");
3739 SV *tmpsv = sv_newmortal();
3740 /* Need to save/restore 'PL_rs' ?? */
3741 s = sv_gets(tmpsv, myfp, 0);
3742 (void)PerlProc_pclose(myfp);
3746 #ifdef HAS_SYS_ERRLIST
3751 /* you don't see this */
3753 #ifdef HAS_SYS_ERRLIST
3761 if (instr(s, errmsg)) {
3768 #define EACCES EPERM
3770 if (instr(s, "cannot make"))
3771 SETERRNO(EEXIST,RMS_FEX);
3772 else if (instr(s, "existing file"))
3773 SETERRNO(EEXIST,RMS_FEX);
3774 else if (instr(s, "ile exists"))
3775 SETERRNO(EEXIST,RMS_FEX);
3776 else if (instr(s, "non-exist"))
3777 SETERRNO(ENOENT,RMS_FNF);
3778 else if (instr(s, "does not exist"))
3779 SETERRNO(ENOENT,RMS_FNF);
3780 else if (instr(s, "not empty"))
3781 SETERRNO(EBUSY,SS_DEVOFFLINE);
3782 else if (instr(s, "cannot access"))
3783 SETERRNO(EACCES,RMS_PRV);
3785 SETERRNO(EPERM,RMS_PRV);
3788 else { /* some mkdirs return no failure indication */
3789 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3790 if (PL_op->op_type == OP_RMDIR)
3795 SETERRNO(EACCES,RMS_PRV); /* a guess */
3804 /* This macro removes trailing slashes from a directory name.
3805 * Different operating and file systems take differently to
3806 * trailing slashes. According to POSIX 1003.1 1996 Edition
3807 * any number of trailing slashes should be allowed.
3808 * Thusly we snip them away so that even non-conforming
3809 * systems are happy.
3810 * We should probably do this "filtering" for all
3811 * the functions that expect (potentially) directory names:
3812 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3813 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3815 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3816 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3819 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3820 (tmps) = savepvn((tmps), (len)); \
3840 TRIMSLASHES(tmps,len,copy);
3842 TAINT_PROPER("mkdir");
3844 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3846 SETi( dooneliner("mkdir", tmps) );
3847 oldumask = PerlLIO_umask(0);
3848 PerlLIO_umask(oldumask);
3849 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3863 TRIMSLASHES(tmps,len,copy);
3864 TAINT_PROPER("rmdir");
3866 SETi( PerlDir_rmdir(tmps) >= 0 );
3868 SETi( dooneliner("rmdir", tmps) );
3875 /* Directory calls. */
3879 #if defined(Direntry_t) && defined(HAS_READDIR)
3881 const char *dirname = POPpconstx;
3883 register IO *io = GvIOn(gv);
3889 PerlDir_close(IoDIRP(io));
3890 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3896 SETERRNO(EBADF,RMS_DIR);
3899 DIE(aTHX_ PL_no_dir_func, "opendir");
3905 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3906 DIE(aTHX_ PL_no_dir_func, "readdir");
3908 #if !defined(I_DIRENT) && !defined(VMS)
3909 Direntry_t *readdir (DIR *);
3914 const I32 gimme = GIMME;
3915 GV *gv = (GV *)POPs;
3916 register Direntry_t *dp;
3917 register IO *io = GvIOn(gv);
3919 if (!io || !IoDIRP(io))
3923 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3927 sv = newSVpvn(dp->d_name, dp->d_namlen);
3929 sv = newSVpv(dp->d_name, 0);
3931 #ifndef INCOMPLETE_TAINTS
3932 if (!(IoFLAGS(io) & IOf_UNTAINT))
3935 XPUSHs(sv_2mortal(sv));
3937 while (gimme == G_ARRAY);
3939 if (!dp && gimme != G_ARRAY)
3946 SETERRNO(EBADF,RMS_ISI);
3947 if (GIMME == G_ARRAY)
3956 #if defined(HAS_TELLDIR) || defined(telldir)
3958 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3959 /* XXX netbsd still seemed to.
3960 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3961 --JHI 1999-Feb-02 */
3962 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3963 long telldir (DIR *);
3966 register IO *io = GvIOn(gv);
3968 if (!io || !IoDIRP(io))
3971 PUSHi( PerlDir_tell(IoDIRP(io)) );
3975 SETERRNO(EBADF,RMS_ISI);
3978 DIE(aTHX_ PL_no_dir_func, "telldir");
3984 #if defined(HAS_SEEKDIR) || defined(seekdir)
3988 register IO *io = GvIOn(gv);
3990 if (!io || !IoDIRP(io))
3993 (void)PerlDir_seek(IoDIRP(io), along);
3998 SETERRNO(EBADF,RMS_ISI);
4001 DIE(aTHX_ PL_no_dir_func, "seekdir");
4007 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4010 register IO *io = GvIOn(gv);
4012 if (!io || !IoDIRP(io))
4015 (void)PerlDir_rewind(IoDIRP(io));
4019 SETERRNO(EBADF,RMS_ISI);
4022 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4028 #if defined(Direntry_t) && defined(HAS_READDIR)
4031 register IO *io = GvIOn(gv);
4033 if (!io || !IoDIRP(io))
4036 #ifdef VOID_CLOSEDIR
4037 PerlDir_close(IoDIRP(io));
4039 if (PerlDir_close(IoDIRP(io)) < 0) {
4040 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4049 SETERRNO(EBADF,RMS_IFI);
4052 DIE(aTHX_ PL_no_dir_func, "closedir");
4056 /* Process control. */
4066 PERL_FLUSHALL_FOR_CHILD;
4067 childpid = PerlProc_fork();
4071 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4072 SvREADONLY_off(GvSV(tmpgv));
4073 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4074 SvREADONLY_on(GvSV(tmpgv));
4076 #ifdef THREADS_HAVE_PIDS
4077 PL_ppid = (IV)getppid();
4079 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4084 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4089 PERL_FLUSHALL_FOR_CHILD;
4090 childpid = PerlProc_fork();
4096 DIE(aTHX_ PL_no_func, "fork");
4103 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4108 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4109 childpid = wait4pid(-1, &argflags, 0);
4111 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4116 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4117 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4118 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4120 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4125 DIE(aTHX_ PL_no_func, "wait");
4131 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4140 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4141 result = wait4pid(pid, &argflags, optype);
4143 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4148 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4149 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4150 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4152 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4157 DIE(aTHX_ PL_no_func, "waitpid");
4163 dSP; dMARK; dORIGMARK; dTARGET;
4169 while (++MARK <= SP) {
4170 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4175 TAINT_PROPER("system");
4177 PERL_FLUSHALL_FOR_CHILD;
4178 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4184 if (PerlProc_pipe(pp) >= 0)
4186 while ((childpid = PerlProc_fork()) == -1) {
4187 if (errno != EAGAIN) {
4192 PerlLIO_close(pp[0]);
4193 PerlLIO_close(pp[1]);
4200 Sigsave_t ihand,qhand; /* place to save signals during system() */
4204 PerlLIO_close(pp[1]);
4206 rsignal_save(SIGINT, SIG_IGN, &ihand);
4207 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4210 result = wait4pid(childpid, &status, 0);
4211 } while (result == -1 && errno == EINTR);
4213 (void)rsignal_restore(SIGINT, &ihand);
4214 (void)rsignal_restore(SIGQUIT, &qhand);
4216 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4217 do_execfree(); /* free any memory child malloced on fork */
4223 while (n < sizeof(int)) {
4224 n1 = PerlLIO_read(pp[0],
4225 (void*)(((char*)&errkid)+n),
4231 PerlLIO_close(pp[0]);
4232 if (n) { /* Error */
4233 if (n != sizeof(int))
4234 DIE(aTHX_ "panic: kid popen errno read");
4235 errno = errkid; /* Propagate errno from kid */
4236 STATUS_CURRENT = -1;
4239 PUSHi(STATUS_CURRENT);
4243 PerlLIO_close(pp[0]);
4244 #if defined(HAS_FCNTL) && defined(F_SETFD)
4245 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4248 if (PL_op->op_flags & OPf_STACKED) {
4249 SV *really = *++MARK;
4250 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4252 else if (SP - MARK != 1)
4253 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4255 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4259 #else /* ! FORK or VMS or OS/2 */
4262 if (PL_op->op_flags & OPf_STACKED) {
4263 SV *really = *++MARK;
4264 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4265 value = (I32)do_aspawn(really, MARK, SP);
4267 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4270 else if (SP - MARK != 1) {
4271 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4272 value = (I32)do_aspawn(Nullsv, MARK, SP);
4274 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4278 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4280 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4282 STATUS_NATIVE_SET(value);
4285 PUSHi(result ? value : STATUS_CURRENT);
4286 #endif /* !FORK or VMS */
4292 dSP; dMARK; dORIGMARK; dTARGET;
4297 while (++MARK <= SP) {
4298 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4303 TAINT_PROPER("exec");
4305 PERL_FLUSHALL_FOR_CHILD;
4306 if (PL_op->op_flags & OPf_STACKED) {
4307 SV *really = *++MARK;
4308 value = (I32)do_aexec(really, MARK, SP);
4310 else if (SP - MARK != 1)
4312 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4316 (void ) do_aspawn(Nullsv, MARK, SP);
4320 value = (I32)do_aexec(Nullsv, MARK, SP);
4325 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4328 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4331 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4344 dSP; dMARK; dTARGET;
4346 value = (I32)apply(PL_op->op_type, MARK, SP);
4351 DIE(aTHX_ PL_no_func, "kill");
4359 # ifdef THREADS_HAVE_PIDS
4360 if (PL_ppid != 1 && getppid() == 1)
4361 /* maybe the parent process has died. Refresh ppid cache */
4365 XPUSHi( getppid() );
4369 DIE(aTHX_ PL_no_func, "getppid");
4385 pgrp = (I32)BSD_GETPGRP(pid);
4387 if (pid != 0 && pid != PerlProc_getpid())
4388 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4394 DIE(aTHX_ PL_no_func, "getpgrp()");
4413 TAINT_PROPER("setpgrp");
4415 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4417 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4418 || (pid != 0 && pid != PerlProc_getpid()))
4420 DIE(aTHX_ "setpgrp can't take arguments");
4422 SETi( setpgrp() >= 0 );
4423 #endif /* USE_BSDPGRP */
4426 DIE(aTHX_ PL_no_func, "setpgrp()");
4432 #ifdef HAS_GETPRIORITY
4436 SETi( getpriority(which, who) );
4439 DIE(aTHX_ PL_no_func, "getpriority()");
4445 #ifdef HAS_SETPRIORITY
4450 TAINT_PROPER("setpriority");
4451 SETi( setpriority(which, who, niceval) >= 0 );
4454 DIE(aTHX_ PL_no_func, "setpriority()");
4464 XPUSHn( time(Null(Time_t*)) );
4466 XPUSHi( time(Null(Time_t*)) );
4477 (void)PerlProc_times(&PL_timesbuf);
4479 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4480 /* struct tms, though same data */
4484 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4485 if (GIMME == G_ARRAY) {
4486 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4487 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4488 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4494 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4496 if (GIMME == G_ARRAY) {
4497 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4498 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4499 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4503 DIE(aTHX_ "times not implemented");
4505 #endif /* HAS_TIMES */
4517 const struct tm *tmbuf;
4518 static const char * const dayname[] =
4519 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4520 static const char * const monname[] =
4521 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4522 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4528 when = (Time_t)SvNVx(POPs);
4530 when = (Time_t)SvIVx(POPs);
4533 if (PL_op->op_type == OP_LOCALTIME)
4534 tmbuf = localtime(&when);
4536 tmbuf = gmtime(&when);
4538 if (GIMME != G_ARRAY) {
4544 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4545 dayname[tmbuf->tm_wday],
4546 monname[tmbuf->tm_mon],
4551 tmbuf->tm_year + 1900);
4552 PUSHs(sv_2mortal(tsv));
4557 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4558 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4559 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4560 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4561 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4562 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4563 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4564 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4565 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4576 anum = alarm((unsigned int)anum);
4583 DIE(aTHX_ PL_no_func, "alarm");
4594 (void)time(&lasttime);
4599 PerlProc_sleep((unsigned int)duration);
4602 XPUSHi(when - lasttime);
4606 /* Shared memory. */
4620 return pp_shmwrite();
4625 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4626 dSP; dMARK; dTARGET;
4627 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4636 /* Message passing. */
4650 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4651 dSP; dMARK; dTARGET;
4652 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4663 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4664 dSP; dMARK; dTARGET;
4665 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4678 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4679 dSP; dMARK; dTARGET;
4680 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4687 DIE(aTHX_ "System V IPC is not implemented on this machine");
4693 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4694 dSP; dMARK; dTARGET;
4695 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4703 PUSHp(zero_but_true, ZBTLEN);
4713 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4714 dSP; dMARK; dTARGET;
4715 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4724 /* Get system info. */
4728 #ifdef HAS_GETHOSTBYNAME
4729 return pp_ghostent();
4731 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4737 #ifdef HAS_GETHOSTBYADDR
4738 return pp_ghostent();
4740 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4746 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4748 I32 which = PL_op->op_type;
4749 register char **elem;
4751 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4752 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4753 struct hostent *gethostbyname(Netdb_name_t);
4754 struct hostent *gethostent(void);
4756 struct hostent *hent;
4760 if (which == OP_GHBYNAME) {
4761 #ifdef HAS_GETHOSTBYNAME
4762 char* name = POPpbytex;
4763 hent = PerlSock_gethostbyname(name);
4765 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4768 else if (which == OP_GHBYADDR) {
4769 #ifdef HAS_GETHOSTBYADDR
4770 int addrtype = POPi;
4773 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4775 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4777 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4781 #ifdef HAS_GETHOSTENT
4782 hent = PerlSock_gethostent();
4784 DIE(aTHX_ PL_no_sock_func, "gethostent");
4787 #ifdef HOST_NOT_FOUND
4789 #ifdef USE_REENTRANT_API
4790 # ifdef USE_GETHOSTENT_ERRNO
4791 h_errno = PL_reentrant_buffer->_gethostent_errno;
4794 STATUS_NATIVE_SET(h_errno);
4798 if (GIMME != G_ARRAY) {
4799 PUSHs(sv = sv_newmortal());
4801 if (which == OP_GHBYNAME) {
4803 sv_setpvn(sv, hent->h_addr, hent->h_length);
4806 sv_setpv(sv, (char*)hent->h_name);
4812 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4813 sv_setpv(sv, (char*)hent->h_name);
4814 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4815 for (elem = hent->h_aliases; elem && *elem; elem++) {
4816 sv_catpv(sv, *elem);
4818 sv_catpvn(sv, " ", 1);
4820 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4821 sv_setiv(sv, (IV)hent->h_addrtype);
4822 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4823 len = hent->h_length;
4824 sv_setiv(sv, (IV)len);
4826 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4827 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4828 sv_setpvn(sv, *elem, len);
4831 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4833 sv_setpvn(sv, hent->h_addr, len);
4838 DIE(aTHX_ PL_no_sock_func, "gethostent");
4844 #ifdef HAS_GETNETBYNAME
4845 return pp_gnetent();
4847 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4853 #ifdef HAS_GETNETBYADDR
4854 return pp_gnetent();
4856 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4862 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4864 I32 which = PL_op->op_type;
4865 register char **elem;
4867 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4868 struct netent *getnetbyaddr(Netdb_net_t, int);
4869 struct netent *getnetbyname(Netdb_name_t);
4870 struct netent *getnetent(void);
4872 struct netent *nent;
4874 if (which == OP_GNBYNAME){
4875 #ifdef HAS_GETNETBYNAME
4876 char *name = POPpbytex;
4877 nent = PerlSock_getnetbyname(name);
4879 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4882 else if (which == OP_GNBYADDR) {
4883 #ifdef HAS_GETNETBYADDR
4884 int addrtype = POPi;
4885 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4886 nent = PerlSock_getnetbyaddr(addr, addrtype);
4888 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4892 #ifdef HAS_GETNETENT
4893 nent = PerlSock_getnetent();
4895 DIE(aTHX_ PL_no_sock_func, "getnetent");
4898 #ifdef HOST_NOT_FOUND
4900 #ifdef USE_REENTRANT_API
4901 # ifdef USE_GETNETENT_ERRNO
4902 h_errno = PL_reentrant_buffer->_getnetent_errno;
4905 STATUS_NATIVE_SET(h_errno);
4910 if (GIMME != G_ARRAY) {
4911 PUSHs(sv = sv_newmortal());
4913 if (which == OP_GNBYNAME)
4914 sv_setiv(sv, (IV)nent->n_net);
4916 sv_setpv(sv, nent->n_name);
4922 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4923 sv_setpv(sv, nent->n_name);
4924 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4925 for (elem = nent->n_aliases; elem && *elem; elem++) {
4926 sv_catpv(sv, *elem);
4928 sv_catpvn(sv, " ", 1);
4930 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4931 sv_setiv(sv, (IV)nent->n_addrtype);
4932 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4933 sv_setiv(sv, (IV)nent->n_net);
4938 DIE(aTHX_ PL_no_sock_func, "getnetent");
4944 #ifdef HAS_GETPROTOBYNAME
4945 return pp_gprotoent();
4947 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4953 #ifdef HAS_GETPROTOBYNUMBER
4954 return pp_gprotoent();
4956 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4962 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4964 I32 which = PL_op->op_type;
4965 register char **elem;
4967 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4968 struct protoent *getprotobyname(Netdb_name_t);
4969 struct protoent *getprotobynumber(int);
4970 struct protoent *getprotoent(void);
4972 struct protoent *pent;
4974 if (which == OP_GPBYNAME) {
4975 #ifdef HAS_GETPROTOBYNAME
4976 char* name = POPpbytex;
4977 pent = PerlSock_getprotobyname(name);
4979 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4982 else if (which == OP_GPBYNUMBER) {
4983 #ifdef HAS_GETPROTOBYNUMBER
4985 pent = PerlSock_getprotobynumber(number);
4987 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4991 #ifdef HAS_GETPROTOENT
4992 pent = PerlSock_getprotoent();
4994 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4998 if (GIMME != G_ARRAY) {
4999 PUSHs(sv = sv_newmortal());
5001 if (which == OP_GPBYNAME)
5002 sv_setiv(sv, (IV)pent->p_proto);
5004 sv_setpv(sv, pent->p_name);
5010 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5011 sv_setpv(sv, pent->p_name);
5012 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5013 for (elem = pent->p_aliases; elem && *elem; elem++) {
5014 sv_catpv(sv, *elem);
5016 sv_catpvn(sv, " ", 1);
5018 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5019 sv_setiv(sv, (IV)pent->p_proto);
5024 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5030 #ifdef HAS_GETSERVBYNAME
5031 return pp_gservent();
5033 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5039 #ifdef HAS_GETSERVBYPORT
5040 return pp_gservent();
5042 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5048 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5050 I32 which = PL_op->op_type;
5051 register char **elem;
5053 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5054 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5055 struct servent *getservbyport(int, Netdb_name_t);
5056 struct servent *getservent(void);
5058 struct servent *sent;
5060 if (which == OP_GSBYNAME) {
5061 #ifdef HAS_GETSERVBYNAME
5062 char *proto = POPpbytex;
5063 char *name = POPpbytex;
5065 if (proto && !*proto)
5068 sent = PerlSock_getservbyname(name, proto);
5070 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5073 else if (which == OP_GSBYPORT) {
5074 #ifdef HAS_GETSERVBYPORT
5075 char *proto = POPpbytex;
5076 unsigned short port = (unsigned short)POPu;
5078 if (proto && !*proto)
5082 port = PerlSock_htons(port);
5084 sent = PerlSock_getservbyport(port, proto);
5086 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5090 #ifdef HAS_GETSERVENT
5091 sent = PerlSock_getservent();
5093 DIE(aTHX_ PL_no_sock_func, "getservent");
5097 if (GIMME != G_ARRAY) {
5098 PUSHs(sv = sv_newmortal());
5100 if (which == OP_GSBYNAME) {
5102 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5104 sv_setiv(sv, (IV)(sent->s_port));
5108 sv_setpv(sv, sent->s_name);
5114 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5115 sv_setpv(sv, sent->s_name);
5116 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5117 for (elem = sent->s_aliases; elem && *elem; elem++) {
5118 sv_catpv(sv, *elem);
5120 sv_catpvn(sv, " ", 1);
5122 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5124 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5126 sv_setiv(sv, (IV)(sent->s_port));
5128 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5129 sv_setpv(sv, sent->s_proto);
5134 DIE(aTHX_ PL_no_sock_func, "getservent");
5140 #ifdef HAS_SETHOSTENT
5142 PerlSock_sethostent(TOPi);
5145 DIE(aTHX_ PL_no_sock_func, "sethostent");
5151 #ifdef HAS_SETNETENT
5153 PerlSock_setnetent(TOPi);
5156 DIE(aTHX_ PL_no_sock_func, "setnetent");
5162 #ifdef HAS_SETPROTOENT
5164 PerlSock_setprotoent(TOPi);
5167 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5173 #ifdef HAS_SETSERVENT
5175 PerlSock_setservent(TOPi);
5178 DIE(aTHX_ PL_no_sock_func, "setservent");
5184 #ifdef HAS_ENDHOSTENT
5186 PerlSock_endhostent();
5190 DIE(aTHX_ PL_no_sock_func, "endhostent");
5196 #ifdef HAS_ENDNETENT
5198 PerlSock_endnetent();
5202 DIE(aTHX_ PL_no_sock_func, "endnetent");
5208 #ifdef HAS_ENDPROTOENT
5210 PerlSock_endprotoent();
5214 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5220 #ifdef HAS_ENDSERVENT
5222 PerlSock_endservent();
5226 DIE(aTHX_ PL_no_sock_func, "endservent");
5235 DIE(aTHX_ PL_no_func, "getpwnam");
5244 DIE(aTHX_ PL_no_func, "getpwuid");
5252 I32 which = PL_op->op_type;
5254 struct passwd *pwent = NULL;
5256 * We currently support only the SysV getsp* shadow password interface.
5257 * The interface is declared in <shadow.h> and often one needs to link
5258 * with -lsecurity or some such.
5259 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5262 * AIX getpwnam() is clever enough to return the encrypted password
5263 * only if the caller (euid?) is root.
5265 * There are at least three other shadow password APIs. Many platforms
5266 * seem to contain more than one interface for accessing the shadow
5267 * password databases, possibly for compatibility reasons.
5268 * The getsp*() is by far he simplest one, the other two interfaces
5269 * are much more complicated, but also very similar to each other.
5274 * struct pr_passwd *getprpw*();
5275 * The password is in
5276 * char getprpw*(...).ufld.fd_encrypt[]
5277 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5282 * struct es_passwd *getespw*();
5283 * The password is in
5284 * char *(getespw*(...).ufld.fd_encrypt)
5285 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5288 * struct userpw *getuserpw();
5289 * The password is in
5290 * char *(getuserpw(...)).spw_upw_passwd
5291 * (but the de facto standard getpwnam() should work okay)
5293 * Mention I_PROT here so that Configure probes for it.
5295 * In HP-UX for getprpw*() the manual page claims that one should include
5296 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5297 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5298 * and pp_sys.c already includes <shadow.h> if there is such.
5300 * Note that <sys/security.h> is already probed for, but currently
5301 * it is only included in special cases.
5303 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5304 * be preferred interface, even though also the getprpw*() interface
5305 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5306 * One also needs to call set_auth_parameters() in main() before
5307 * doing anything else, whether one is using getespw*() or getprpw*().
5309 * Note that accessing the shadow databases can be magnitudes
5310 * slower than accessing the standard databases.
5315 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5316 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5317 * the pw_comment is left uninitialized. */
5318 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5324 char* name = POPpbytex;
5325 pwent = getpwnam(name);
5331 pwent = getpwuid(uid);
5335 # ifdef HAS_GETPWENT
5337 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5338 if (pwent) pwent = getpwnam(pwent->pw_name);
5341 DIE(aTHX_ PL_no_func, "getpwent");
5347 if (GIMME != G_ARRAY) {
5348 PUSHs(sv = sv_newmortal());
5350 if (which == OP_GPWNAM)
5351 # if Uid_t_sign <= 0
5352 sv_setiv(sv, (IV)pwent->pw_uid);
5354 sv_setuv(sv, (UV)pwent->pw_uid);
5357 sv_setpv(sv, pwent->pw_name);
5363 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5364 sv_setpv(sv, pwent->pw_name);
5366 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5368 /* If we have getspnam(), we try to dig up the shadow
5369 * password. If we are underprivileged, the shadow
5370 * interface will set the errno to EACCES or similar,
5371 * and return a null pointer. If this happens, we will
5372 * use the dummy password (usually "*" or "x") from the
5373 * standard password database.
5375 * In theory we could skip the shadow call completely
5376 * if euid != 0 but in practice we cannot know which
5377 * security measures are guarding the shadow databases
5378 * on a random platform.
5380 * Resist the urge to use additional shadow interfaces.
5381 * Divert the urge to writing an extension instead.
5384 /* Some AIX setups falsely(?) detect some getspnam(), which
5385 * has a different API than the Solaris/IRIX one. */
5386 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5388 struct spwd *spwent;
5389 int saverrno; /* Save and restore errno so that
5390 * underprivileged attempts seem
5391 * to have never made the unsccessful
5392 * attempt to retrieve the shadow password. */
5395 spwent = getspnam(pwent->pw_name);
5397 if (spwent && spwent->sp_pwdp)
5398 sv_setpv(sv, spwent->sp_pwdp);
5402 if (!SvPOK(sv)) /* Use the standard password, then. */
5403 sv_setpv(sv, pwent->pw_passwd);
5406 # ifndef INCOMPLETE_TAINTS
5407 /* passwd is tainted because user himself can diddle with it.
5408 * admittedly not much and in a very limited way, but nevertheless. */
5412 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5413 # if Uid_t_sign <= 0
5414 sv_setiv(sv, (IV)pwent->pw_uid);
5416 sv_setuv(sv, (UV)pwent->pw_uid);
5419 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5420 # if Uid_t_sign <= 0
5421 sv_setiv(sv, (IV)pwent->pw_gid);
5423 sv_setuv(sv, (UV)pwent->pw_gid);
5425 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5426 * because of the poor interface of the Perl getpw*(),
5427 * not because there's some standard/convention saying so.
5428 * A better interface would have been to return a hash,
5429 * but we are accursed by our history, alas. --jhi. */
5430 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5432 sv_setiv(sv, (IV)pwent->pw_change);
5435 sv_setiv(sv, (IV)pwent->pw_quota);
5438 sv_setpv(sv, pwent->pw_age);
5443 /* pw_class and pw_comment are mutually exclusive--.
5444 * see the above note for pw_change, pw_quota, and pw_age. */
5445 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5447 sv_setpv(sv, pwent->pw_class);
5450 sv_setpv(sv, pwent->pw_comment);
5454 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5456 sv_setpv(sv, pwent->pw_gecos);
5458 # ifndef INCOMPLETE_TAINTS
5459 /* pw_gecos is tainted because user himself can diddle with it. */
5463 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5464 sv_setpv(sv, pwent->pw_dir);
5466 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5467 sv_setpv(sv, pwent->pw_shell);
5468 # ifndef INCOMPLETE_TAINTS
5469 /* pw_shell is tainted because user himself can diddle with it. */
5474 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5475 sv_setiv(sv, (IV)pwent->pw_expire);
5480 DIE(aTHX_ PL_no_func, "getpwent");
5486 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5491 DIE(aTHX_ PL_no_func, "setpwent");
5497 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5502 DIE(aTHX_ PL_no_func, "endpwent");
5511 DIE(aTHX_ PL_no_func, "getgrnam");
5520 DIE(aTHX_ PL_no_func, "getgrgid");
5528 I32 which = PL_op->op_type;
5529 register char **elem;
5531 struct group *grent;
5533 if (which == OP_GGRNAM) {
5534 char* name = POPpbytex;
5535 grent = (struct group *)getgrnam(name);
5537 else if (which == OP_GGRGID) {
5539 grent = (struct group *)getgrgid(gid);
5543 grent = (struct group *)getgrent();
5545 DIE(aTHX_ PL_no_func, "getgrent");
5549 if (GIMME != G_ARRAY) {
5550 PUSHs(sv = sv_newmortal());
5552 if (which == OP_GGRNAM)
5553 sv_setiv(sv, (IV)grent->gr_gid);
5555 sv_setpv(sv, grent->gr_name);
5561 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5562 sv_setpv(sv, grent->gr_name);
5564 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5566 sv_setpv(sv, grent->gr_passwd);
5569 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5570 sv_setiv(sv, (IV)grent->gr_gid);
5572 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5573 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5574 /* In UNICOS/mk (_CRAYMPP) the multithreading
5575 * versions (getgrnam_r, getgrgid_r)
5576 * seem to return an illegal pointer
5577 * as the group members list, gr_mem.
5578 * getgrent() doesn't even have a _r version
5579 * but the gr_mem is poisonous anyway.
5580 * So yes, you cannot get the list of group
5581 * members if building multithreaded in UNICOS/mk. */
5582 for (elem = grent->gr_mem; elem && *elem; elem++) {
5583 sv_catpv(sv, *elem);
5585 sv_catpvn(sv, " ", 1);
5592 DIE(aTHX_ PL_no_func, "getgrent");
5598 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5603 DIE(aTHX_ PL_no_func, "setgrent");
5609 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5614 DIE(aTHX_ PL_no_func, "endgrent");
5624 if (!(tmps = PerlProc_getlogin()))
5626 PUSHp(tmps, strlen(tmps));
5629 DIE(aTHX_ PL_no_func, "getlogin");
5633 /* Miscellaneous. */
5638 dSP; dMARK; dORIGMARK; dTARGET;
5639 register I32 items = SP - MARK;
5640 unsigned long a[20];
5645 while (++MARK <= SP) {
5646 if (SvTAINTED(*MARK)) {
5652 TAINT_PROPER("syscall");
5655 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5656 * or where sizeof(long) != sizeof(char*). But such machines will
5657 * not likely have syscall implemented either, so who cares?
5659 while (++MARK <= SP) {
5660 if (SvNIOK(*MARK) || !i)
5661 a[i++] = SvIV(*MARK);
5662 else if (*MARK == &PL_sv_undef)
5665 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5671 DIE(aTHX_ "Too many args to syscall");
5673 DIE(aTHX_ "Too few args to syscall");
5675 retval = syscall(a[0]);
5678 retval = syscall(a[0],a[1]);
5681 retval = syscall(a[0],a[1],a[2]);
5684 retval = syscall(a[0],a[1],a[2],a[3]);
5687 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5690 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5693 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5696 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5700 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5703 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5706 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5710 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5714 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5718 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5719 a[10],a[11],a[12],a[13]);
5721 #endif /* atarist */
5727 DIE(aTHX_ PL_no_func, "syscall");
5731 #ifdef FCNTL_EMULATE_FLOCK
5733 /* XXX Emulate flock() with fcntl().
5734 What's really needed is a good file locking module.
5738 fcntl_emulate_flock(int fd, int operation)
5742 switch (operation & ~LOCK_NB) {
5744 flock.l_type = F_RDLCK;
5747 flock.l_type = F_WRLCK;
5750 flock.l_type = F_UNLCK;
5756 flock.l_whence = SEEK_SET;
5757 flock.l_start = flock.l_len = (Off_t)0;
5759 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5762 #endif /* FCNTL_EMULATE_FLOCK */
5764 #ifdef LOCKF_EMULATE_FLOCK
5766 /* XXX Emulate flock() with lockf(). This is just to increase
5767 portability of scripts. The calls are not completely
5768 interchangeable. What's really needed is a good file
5772 /* The lockf() constants might have been defined in <unistd.h>.
5773 Unfortunately, <unistd.h> causes troubles on some mixed
5774 (BSD/POSIX) systems, such as SunOS 4.1.3.
5776 Further, the lockf() constants aren't POSIX, so they might not be
5777 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5778 just stick in the SVID values and be done with it. Sigh.
5782 # define F_ULOCK 0 /* Unlock a previously locked region */
5785 # define F_LOCK 1 /* Lock a region for exclusive use */
5788 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5791 # define F_TEST 3 /* Test a region for other processes locks */
5795 lockf_emulate_flock(int fd, int operation)
5801 /* flock locks entire file so for lockf we need to do the same */
5803 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5804 if (pos > 0) /* is seekable and needs to be repositioned */
5805 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5806 pos = -1; /* seek failed, so don't seek back afterwards */
5809 switch (operation) {
5811 /* LOCK_SH - get a shared lock */
5813 /* LOCK_EX - get an exclusive lock */
5815 i = lockf (fd, F_LOCK, 0);
5818 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5819 case LOCK_SH|LOCK_NB:
5820 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5821 case LOCK_EX|LOCK_NB:
5822 i = lockf (fd, F_TLOCK, 0);
5824 if ((errno == EAGAIN) || (errno == EACCES))
5825 errno = EWOULDBLOCK;
5828 /* LOCK_UN - unlock (non-blocking is a no-op) */
5830 case LOCK_UN|LOCK_NB:
5831 i = lockf (fd, F_ULOCK, 0);
5834 /* Default - can't decipher operation */
5841 if (pos > 0) /* need to restore position of the handle */
5842 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5847 #endif /* LOCKF_EMULATE_FLOCK */
5851 * c-indentation-style: bsd
5853 * indent-tabs-mode: t
5856 * ex: set ts=8 sts=4 sw=4 noet: