3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 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 (pTHX);
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 /* EFFective uid/gid ACCESS */
202 /* AIX 5.2 and below use mktime for localtime, and defines the edge case
203 * for time 0x7fffffff to be valid only in UTC. AIX 5.3 provides localtime64
204 * available in the 32bit environment, which could warrant Configure
205 * checks in the future.
208 #define LOCALTIME_EDGECASE_BROKEN
211 /* F_OK unused: if stat() cannot find it... */
213 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
214 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
215 # define PERL_EFF_ACCESS(p,f) (access((p), (f) | EFF_ONLY_OK))
218 #if !defined(PERL_EFF_ACCESS) && defined(HAS_EACCESS)
219 # ifdef I_SYS_SECURITY
220 # include <sys/security.h>
224 # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f), ACC_SELF))
227 # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f)))
231 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESSX) && defined(ACC_SELF)
233 # define PERL_EFF_ACCESS(p,f) (accessx((p), (f), ACC_SELF))
237 #if !defined(PERL_EFF_ACCESS) && 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 const Uid_t ruid = getuid();
245 const Uid_t euid = geteuid();
246 const Gid_t rgid = getgid();
247 const 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(p,f) (emulate_eaccess((p), (f)))
303 #if !defined(PERL_EFF_ACCESS)
304 /* With it or without it: anyway you get a warning: either that
305 it is unused, or it is declared static and never defined.
308 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
310 PERL_UNUSED_ARG(path);
311 PERL_UNUSED_ARG(mode);
312 Perl_croak(aTHX_ "switching effective uid is not implemented");
322 const char * const tmps = POPpconstx;
323 const I32 gimme = GIMME_V;
324 const char *mode = "r";
327 if (PL_op->op_private & OPpOPEN_IN_RAW)
329 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
331 fp = PerlProc_popen(tmps, mode);
333 const char * const type = Perl_PerlIO_context_layers(aTHX_ NULL);
335 PerlIO_apply_layers(aTHX_ fp,mode,type);
337 if (gimme == G_VOID) {
339 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
342 else if (gimme == G_SCALAR) {
345 PL_rs = &PL_sv_undef;
346 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
347 while (sv_gets(TARG, fp, SvCUR(TARG)) != NULL)
355 SV * const sv = newSV(79);
356 if (sv_gets(sv, fp, 0) == NULL) {
360 XPUSHs(sv_2mortal(sv));
361 if (SvLEN(sv) - SvCUR(sv) > 20) {
362 SvPV_shrink_to_cur(sv);
367 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
368 TAINT; /* "I believe that this is not gratuitous!" */
371 STATUS_NATIVE_CHILD_SET(-1);
372 if (gimme == G_SCALAR)
383 tryAMAGICunTARGET(iter, -1);
385 /* Note that we only ever get here if File::Glob fails to load
386 * without at the same time croaking, for some reason, or if
387 * perl was built with PERL_EXTERNAL_GLOB */
394 * The external globbing program may use things we can't control,
395 * so for security reasons we must assume the worst.
398 taint_proper(PL_no_security, "glob");
402 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
403 PL_last_in_gv = (GV*)*PL_stack_sp--;
405 SAVESPTR(PL_rs); /* This is not permanent, either. */
406 PL_rs = sv_2mortal(newSVpvs("\000"));
409 *SvPVX(PL_rs) = '\n';
413 result = do_readline();
421 PL_last_in_gv = cGVOP_gv;
422 return do_readline();
433 do_join(TARG, &PL_sv_no, MARK, SP);
437 else if (SP == MARK) {
444 tmps = SvPV_const(tmpsv, len);
445 if ((!tmps || !len) && PL_errgv) {
446 SV * const error = ERRSV;
447 SvUPGRADE(error, SVt_PV);
448 if (SvPOK(error) && SvCUR(error))
449 sv_catpvs(error, "\t...caught");
451 tmps = SvPV_const(tmpsv, len);
454 tmpsv = sv_2mortal(newSVpvs("Warning: something's wrong"));
456 Perl_warn(aTHX_ "%"SVf, (void*)tmpsv);
468 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
470 if (SP - MARK != 1) {
472 do_join(TARG, &PL_sv_no, MARK, SP);
474 tmps = SvPV_const(tmpsv, len);
480 tmps = SvROK(tmpsv) ? NULL : SvPV_const(tmpsv, len);
483 SV * const error = ERRSV;
484 SvUPGRADE(error, SVt_PV);
485 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
487 SvSetSV(error,tmpsv);
488 else if (sv_isobject(error)) {
489 HV * const stash = SvSTASH(SvRV(error));
490 GV * const gv = gv_fetchmethod(stash, "PROPAGATE");
492 SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
493 SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
500 call_sv((SV*)GvCV(gv),
501 G_SCALAR|G_EVAL|G_KEEPERR);
502 sv_setsv(error,*PL_stack_sp--);
508 if (SvPOK(error) && SvCUR(error))
509 sv_catpvs(error, "\t...propagated");
512 tmps = SvPV_const(tmpsv, len);
518 tmpsv = sv_2mortal(newSVpvs("Died"));
520 DIE(aTHX_ "%"SVf, (void*)tmpsv);
536 GV * const gv = (GV *)*++MARK;
539 DIE(aTHX_ PL_no_usym, "filehandle");
540 if ((io = GvIOp(gv))) {
542 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
544 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);
566 tmps = SvPV_const(sv, len);
567 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, NULL, MARK+1, (SP-MARK));
570 PUSHi( (I32)PL_forkprocess );
571 else if (PL_forkprocess == 0) /* we are a new child */
581 GV * const gv = (MAXARG == 0) ? PL_defoutgv : (GV*)POPs;
584 IO * const io = GvIO(gv);
586 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
589 XPUSHs(SvTIED_obj((SV*)io, mg));
592 call_method("CLOSE", G_SCALAR);
600 PUSHs(boolSV(do_close(gv, TRUE)));
613 GV * const wgv = (GV*)POPs;
614 GV * const rgv = (GV*)POPs;
619 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
620 DIE(aTHX_ PL_no_usym, "filehandle");
625 do_close(rgv, FALSE);
627 do_close(wgv, FALSE);
629 if (PerlProc_pipe(fd) < 0)
632 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
633 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
634 IoOFP(rstio) = IoIFP(rstio);
635 IoIFP(wstio) = IoOFP(wstio);
636 IoTYPE(rstio) = IoTYPE_RDONLY;
637 IoTYPE(wstio) = IoTYPE_WRONLY;
639 if (!IoIFP(rstio) || !IoOFP(wstio)) {
641 PerlIO_close(IoIFP(rstio));
643 PerlLIO_close(fd[0]);
645 PerlIO_close(IoOFP(wstio));
647 PerlLIO_close(fd[1]);
650 #if defined(HAS_FCNTL) && defined(F_SETFD)
651 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
652 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
659 DIE(aTHX_ PL_no_func, "pipe");
675 if (gv && (io = GvIO(gv))
676 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
679 XPUSHs(SvTIED_obj((SV*)io, mg));
682 call_method("FILENO", G_SCALAR);
688 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
689 /* Can't do this because people seem to do things like
690 defined(fileno($foo)) to check whether $foo is a valid fh.
691 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
692 report_evil_fh(gv, io, PL_op->op_type);
697 PUSHi(PerlIO_fileno(fp));
710 anum = PerlLIO_umask(0);
711 (void)PerlLIO_umask(anum);
714 anum = PerlLIO_umask(POPi);
715 TAINT_PROPER("umask");
718 /* Only DIE if trying to restrict permissions on "user" (self).
719 * Otherwise it's harmless and more useful to just return undef
720 * since 'group' and 'other' concepts probably don't exist here. */
721 if (MAXARG >= 1 && (POPi & 0700))
722 DIE(aTHX_ "umask not implemented");
723 XPUSHs(&PL_sv_undef);
744 if (gv && (io = GvIO(gv))) {
745 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
748 XPUSHs(SvTIED_obj((SV*)io, mg));
753 call_method("BINMODE", G_SCALAR);
761 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
762 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
763 report_evil_fh(gv, io, PL_op->op_type);
764 SETERRNO(EBADF,RMS_IFI);
769 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
770 (discp) ? SvPV_nolen_const(discp) : NULL)) {
771 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
772 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
773 mode_from_discipline(discp),
774 (discp) ? SvPV_nolen_const(discp) : NULL)) {
794 const I32 markoff = MARK - PL_stack_base;
795 const char *methname;
796 int how = PERL_MAGIC_tied;
800 switch(SvTYPE(varsv)) {
802 methname = "TIEHASH";
803 HvEITER_set((HV *)varsv, 0);
806 methname = "TIEARRAY";
809 #ifdef GV_UNIQUE_CHECK
810 if (GvUNIQUE((GV*)varsv)) {
811 Perl_croak(aTHX_ "Attempt to tie unique GV");
814 methname = "TIEHANDLE";
815 how = PERL_MAGIC_tiedscalar;
816 /* For tied filehandles, we apply tiedscalar magic to the IO
817 slot of the GP rather than the GV itself. AMS 20010812 */
819 GvIOp(varsv) = newIO();
820 varsv = (SV *)GvIOp(varsv);
823 methname = "TIESCALAR";
824 how = PERL_MAGIC_tiedscalar;
828 if (sv_isobject(*MARK)) {
830 PUSHSTACKi(PERLSI_MAGIC);
832 EXTEND(SP,(I32)items);
836 call_method(methname, G_SCALAR);
839 /* Not clear why we don't call call_method here too.
840 * perhaps to get different error message ?
842 stash = gv_stashsv(*MARK, FALSE);
843 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
844 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
845 methname, (void*)*MARK);
848 PUSHSTACKi(PERLSI_MAGIC);
850 EXTEND(SP,(I32)items);
854 call_sv((SV*)GvCV(gv), G_SCALAR);
860 if (sv_isobject(sv)) {
861 sv_unmagic(varsv, how);
862 /* Croak if a self-tie on an aggregate is attempted. */
863 if (varsv == SvRV(sv) &&
864 (SvTYPE(varsv) == SVt_PVAV ||
865 SvTYPE(varsv) == SVt_PVHV))
867 "Self-ties of arrays and hashes are not supported");
868 sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0);
871 SP = PL_stack_base + markoff;
881 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
882 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
884 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
887 if ((mg = SvTIED_mg(sv, how))) {
888 SV * const obj = SvRV(SvTIED_obj(sv, mg));
890 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
892 if (gv && 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 (mg && SvREFCNT(obj) > 1 && ckWARN(WARN_UNTIE)) {
903 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
904 "untie attempted while %"UVuf" inner references still exist",
905 (UV)SvREFCNT(obj) - 1 ) ;
909 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);
942 HV * const hv = (HV*)POPs;
943 SV * const sv = sv_2mortal(newSVpvs("AnyDBM_File"));
944 stash = gv_stashsv(sv, FALSE);
945 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
947 require_pv("AnyDBM_File.pm");
949 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
950 DIE(aTHX_ "No dbm on this machine");
960 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
962 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
965 call_sv((SV*)GvCV(gv), G_SCALAR);
968 if (!sv_isobject(TOPs)) {
973 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
976 call_sv((SV*)GvCV(gv), G_SCALAR);
980 if (sv_isobject(TOPs)) {
981 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
982 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, NULL, 0);
999 struct timeval timebuf;
1000 struct timeval *tbuf = &timebuf;
1003 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1008 # if BYTEORDER & 0xf0000
1009 # define ORDERBYTE (0x88888888 - BYTEORDER)
1011 # define ORDERBYTE (0x4444 - BYTEORDER)
1017 for (i = 1; i <= 3; i++) {
1018 SV * const sv = SP[i];
1021 if (SvREADONLY(sv)) {
1023 sv_force_normal_flags(sv, 0);
1024 if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0))
1025 DIE(aTHX_ PL_no_modify);
1028 if (ckWARN(WARN_MISC))
1029 Perl_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask");
1030 SvPV_force_nolen(sv); /* force string conversion */
1037 /* little endians can use vecs directly */
1038 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1045 masksize = NFDBITS / NBBY;
1047 masksize = sizeof(long); /* documented int, everyone seems to use long */
1049 Zero(&fd_sets[0], 4, char*);
1052 # if SELECT_MIN_BITS == 1
1053 growsize = sizeof(fd_set);
1055 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1056 # undef SELECT_MIN_BITS
1057 # define SELECT_MIN_BITS __FD_SETSIZE
1059 /* If SELECT_MIN_BITS is greater than one we most probably will want
1060 * to align the sizes with SELECT_MIN_BITS/8 because for example
1061 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1062 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1063 * on (sets/tests/clears bits) is 32 bits. */
1064 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1072 timebuf.tv_sec = (long)value;
1073 value -= (NV)timebuf.tv_sec;
1074 timebuf.tv_usec = (long)(value * 1000000.0);
1079 for (i = 1; i <= 3; i++) {
1081 if (!SvOK(sv) || SvCUR(sv) == 0) {
1088 Sv_Grow(sv, growsize);
1092 while (++j <= growsize) {
1096 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1098 Newx(fd_sets[i], growsize, char);
1099 for (offset = 0; offset < growsize; offset += masksize) {
1100 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1101 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1104 fd_sets[i] = SvPVX(sv);
1108 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1109 /* Can't make just the (void*) conditional because that would be
1110 * cpp #if within cpp macro, and not all compilers like that. */
1111 nfound = PerlSock_select(
1113 (Select_fd_set_t) fd_sets[1],
1114 (Select_fd_set_t) fd_sets[2],
1115 (Select_fd_set_t) fd_sets[3],
1116 (void*) tbuf); /* Workaround for compiler bug. */
1118 nfound = PerlSock_select(
1120 (Select_fd_set_t) fd_sets[1],
1121 (Select_fd_set_t) fd_sets[2],
1122 (Select_fd_set_t) fd_sets[3],
1125 for (i = 1; i <= 3; i++) {
1128 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1130 for (offset = 0; offset < growsize; offset += masksize) {
1131 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1132 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1134 Safefree(fd_sets[i]);
1141 if (GIMME == G_ARRAY && tbuf) {
1142 value = (NV)(timebuf.tv_sec) +
1143 (NV)(timebuf.tv_usec) / 1000000.0;
1144 PUSHs(sv_2mortal(newSVnv(value)));
1148 DIE(aTHX_ "select not implemented");
1153 Perl_setdefout(pTHX_ GV *gv)
1156 SvREFCNT_inc_simple_void(gv);
1158 SvREFCNT_dec(PL_defoutgv);
1166 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : NULL;
1167 GV * egv = GvEGV(PL_defoutgv);
1173 XPUSHs(&PL_sv_undef);
1175 GV * const * const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1176 if (gvp && *gvp == egv) {
1177 gv_efullname4(TARG, PL_defoutgv, NULL, TRUE);
1181 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1186 if (!GvIO(newdefout))
1187 gv_IOadd(newdefout);
1188 setdefout(newdefout);
1198 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
1200 if (gv && (io = GvIO(gv))) {
1201 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1203 const I32 gimme = GIMME_V;
1205 XPUSHs(SvTIED_obj((SV*)io, mg));
1208 call_method("GETC", gimme);
1211 if (gimme == G_SCALAR)
1212 SvSetMagicSV_nosteal(TARG, TOPs);
1216 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1217 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1218 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1219 report_evil_fh(gv, io, PL_op->op_type);
1220 SETERRNO(EBADF,RMS_IFI);
1224 sv_setpvn(TARG, " ", 1);
1225 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1226 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1227 /* Find out how many bytes the char needs */
1228 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1231 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1232 SvCUR_set(TARG,1+len);
1241 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1244 register PERL_CONTEXT *cx;
1245 const I32 gimme = GIMME_V;
1250 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1252 cx->blk_sub.retop = retop;
1254 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
1256 setdefout(gv); /* locally select filehandle so $% et al work */
1287 goto not_a_format_reference;
1291 SV * const tmpsv = sv_newmortal();
1293 gv_efullname4(tmpsv, fgv, NULL, FALSE);
1294 name = SvPV_nolen_const(tmpsv);
1296 DIE(aTHX_ "Undefined format \"%s\" called", name);
1298 not_a_format_reference:
1299 DIE(aTHX_ "Not a format reference");
1302 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1304 IoFLAGS(io) &= ~IOf_DIDTOP;
1305 return doform(cv,gv,PL_op->op_next);
1311 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1312 register IO * const io = GvIOp(gv);
1317 register PERL_CONTEXT *cx;
1319 if (!io || !(ofp = IoOFP(io)))
1322 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1323 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1325 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1326 PL_formtarget != PL_toptarget)
1330 if (!IoTOP_GV(io)) {
1333 if (!IoTOP_NAME(io)) {
1335 if (!IoFMT_NAME(io))
1336 IoFMT_NAME(io) = savepv(GvNAME(gv));
1337 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1338 topgv = gv_fetchsv(topname, 0, SVt_PVFM);
1339 if ((topgv && GvFORM(topgv)) ||
1340 !gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM))
1341 IoTOP_NAME(io) = savesvpv(topname);
1343 IoTOP_NAME(io) = savepvs("top");
1345 topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM);
1346 if (!topgv || !GvFORM(topgv)) {
1347 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1350 IoTOP_GV(io) = topgv;
1352 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1353 I32 lines = IoLINES_LEFT(io);
1354 const char *s = SvPVX_const(PL_formtarget);
1355 if (lines <= 0) /* Yow, header didn't even fit!!! */
1357 while (lines-- > 0) {
1358 s = strchr(s, '\n');
1364 const STRLEN save = SvCUR(PL_formtarget);
1365 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1366 do_print(PL_formtarget, ofp);
1367 SvCUR_set(PL_formtarget, save);
1368 sv_chop(PL_formtarget, s);
1369 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1372 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1373 do_print(PL_formfeed, ofp);
1374 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1376 PL_formtarget = PL_toptarget;
1377 IoFLAGS(io) |= IOf_DIDTOP;
1380 DIE(aTHX_ "bad top format reference");
1383 SV * const sv = sv_newmortal();
1385 gv_efullname4(sv, fgv, NULL, FALSE);
1386 name = SvPV_nolen_const(sv);
1388 DIE(aTHX_ "Undefined top format \"%s\" called", name);
1390 DIE(aTHX_ "Undefined top format called");
1392 if (cv && CvCLONE(cv))
1393 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1394 return doform(cv, gv, PL_op);
1398 POPBLOCK(cx,PL_curpm);
1404 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1406 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1407 else if (ckWARN(WARN_CLOSED))
1408 report_evil_fh(gv, io, PL_op->op_type);
1413 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1414 if (ckWARN(WARN_IO))
1415 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1417 if (!do_print(PL_formtarget, fp))
1420 FmLINES(PL_formtarget) = 0;
1421 SvCUR_set(PL_formtarget, 0);
1422 *SvEND(PL_formtarget) = '\0';
1423 if (IoFLAGS(io) & IOf_FLUSH)
1424 (void)PerlIO_flush(fp);
1429 PL_formtarget = PL_bodytarget;
1431 PERL_UNUSED_VAR(newsp);
1432 PERL_UNUSED_VAR(gimme);
1433 return cx->blk_sub.retop;
1438 dVAR; dSP; dMARK; dORIGMARK;
1443 GV * const gv = (PL_op->op_flags & OPf_STACKED) ? (GV*)*++MARK : PL_defoutgv;
1445 if (gv && (io = GvIO(gv))) {
1446 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1448 if (MARK == ORIGMARK) {
1451 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1455 *MARK = SvTIED_obj((SV*)io, mg);
1458 call_method("PRINTF", G_SCALAR);
1461 MARK = ORIGMARK + 1;
1469 if (!(io = GvIO(gv))) {
1470 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1471 report_evil_fh(gv, io, PL_op->op_type);
1472 SETERRNO(EBADF,RMS_IFI);
1475 else if (!(fp = IoOFP(io))) {
1476 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1478 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1479 else if (ckWARN(WARN_CLOSED))
1480 report_evil_fh(gv, io, PL_op->op_type);
1482 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1486 do_sprintf(sv, SP - MARK, MARK + 1);
1487 if (!do_print(sv, fp))
1490 if (IoFLAGS(io) & IOf_FLUSH)
1491 if (PerlIO_flush(fp) == EOF)
1502 PUSHs(&PL_sv_undef);
1510 const int perm = (MAXARG > 3) ? POPi : 0666;
1511 const int mode = POPi;
1512 SV * const sv = POPs;
1513 GV * const gv = (GV *)POPs;
1516 /* Need TIEHANDLE method ? */
1517 const char * const tmps = SvPV_const(sv, len);
1518 /* FIXME? do_open should do const */
1519 if (do_open(gv, tmps, len, TRUE, mode, perm, NULL)) {
1520 IoLINES(GvIOp(gv)) = 0;
1524 PUSHs(&PL_sv_undef);
1531 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1537 Sock_size_t bufsize;
1545 bool charstart = FALSE;
1546 STRLEN charskip = 0;
1549 GV * const gv = (GV*)*++MARK;
1550 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1551 && gv && (io = GvIO(gv)) )
1553 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1557 *MARK = SvTIED_obj((SV*)io, mg);
1559 call_method("READ", G_SCALAR);
1573 sv_setpvn(bufsv, "", 0);
1574 length = SvIVx(*++MARK);
1577 offset = SvIVx(*++MARK);
1581 if (!io || !IoIFP(io)) {
1582 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1583 report_evil_fh(gv, io, PL_op->op_type);
1584 SETERRNO(EBADF,RMS_IFI);
1587 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1588 buffer = SvPVutf8_force(bufsv, blen);
1589 /* UTF-8 may not have been set if they are all low bytes */
1594 buffer = SvPV_force(bufsv, blen);
1595 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1598 DIE(aTHX_ "Negative length");
1606 if (PL_op->op_type == OP_RECV) {
1607 char namebuf[MAXPATHLEN];
1608 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1609 bufsize = sizeof (struct sockaddr_in);
1611 bufsize = sizeof namebuf;
1613 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1617 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1618 /* 'offset' means 'flags' here */
1619 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1620 (struct sockaddr *)namebuf, &bufsize);
1624 /* Bogus return without padding */
1625 bufsize = sizeof (struct sockaddr_in);
1627 SvCUR_set(bufsv, count);
1628 *SvEND(bufsv) = '\0';
1629 (void)SvPOK_only(bufsv);
1633 /* This should not be marked tainted if the fp is marked clean */
1634 if (!(IoFLAGS(io) & IOf_UNTAINT))
1635 SvTAINTED_on(bufsv);
1637 sv_setpvn(TARG, namebuf, bufsize);
1642 if (PL_op->op_type == OP_RECV)
1643 DIE(aTHX_ PL_no_sock_func, "recv");
1645 if (DO_UTF8(bufsv)) {
1646 /* offset adjust in characters not bytes */
1647 blen = sv_len_utf8(bufsv);
1650 if (-offset > (int)blen)
1651 DIE(aTHX_ "Offset outside string");
1654 if (DO_UTF8(bufsv)) {
1655 /* convert offset-as-chars to offset-as-bytes */
1656 if (offset >= (int)blen)
1657 offset += SvCUR(bufsv) - blen;
1659 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1662 bufsize = SvCUR(bufsv);
1663 /* Allocating length + offset + 1 isn't perfect in the case of reading
1664 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1666 (should be 2 * length + offset + 1, or possibly something longer if
1667 PL_encoding is true) */
1668 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1669 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1670 Zero(buffer+bufsize, offset-bufsize, char);
1672 buffer = buffer + offset;
1674 read_target = bufsv;
1676 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1677 concatenate it to the current buffer. */
1679 /* Truncate the existing buffer to the start of where we will be
1681 SvCUR_set(bufsv, offset);
1683 read_target = sv_newmortal();
1684 SvUPGRADE(read_target, SVt_PV);
1685 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1688 if (PL_op->op_type == OP_SYSREAD) {
1689 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1690 if (IoTYPE(io) == IoTYPE_SOCKET) {
1691 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1697 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1702 #ifdef HAS_SOCKET__bad_code_maybe
1703 if (IoTYPE(io) == IoTYPE_SOCKET) {
1704 char namebuf[MAXPATHLEN];
1705 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1706 bufsize = sizeof (struct sockaddr_in);
1708 bufsize = sizeof namebuf;
1710 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1711 (struct sockaddr *)namebuf, &bufsize);
1716 count = PerlIO_read(IoIFP(io), buffer, length);
1717 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1718 if (count == 0 && PerlIO_error(IoIFP(io)))
1722 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1723 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1726 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1727 *SvEND(read_target) = '\0';
1728 (void)SvPOK_only(read_target);
1729 if (fp_utf8 && !IN_BYTES) {
1730 /* Look at utf8 we got back and count the characters */
1731 const char *bend = buffer + count;
1732 while (buffer < bend) {
1734 skip = UTF8SKIP(buffer);
1737 if (buffer - charskip + skip > bend) {
1738 /* partial character - try for rest of it */
1739 length = skip - (bend-buffer);
1740 offset = bend - SvPVX_const(bufsv);
1752 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1753 provided amount read (count) was what was requested (length)
1755 if (got < wanted && count == length) {
1756 length = wanted - got;
1757 offset = bend - SvPVX_const(bufsv);
1760 /* return value is character count */
1764 else if (buffer_utf8) {
1765 /* Let svcatsv upgrade the bytes we read in to utf8.
1766 The buffer is a mortal so will be freed soon. */
1767 sv_catsv_nomg(bufsv, read_target);
1770 /* This should not be marked tainted if the fp is marked clean */
1771 if (!(IoFLAGS(io) & IOf_UNTAINT))
1772 SvTAINTED_on(bufsv);
1784 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1790 STRLEN orig_blen_bytes;
1791 const int op_type = PL_op->op_type;
1795 GV *const gv = (GV*)*++MARK;
1796 if (PL_op->op_type == OP_SYSWRITE
1797 && gv && (io = GvIO(gv))) {
1798 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1802 if (MARK == SP - 1) {
1804 sv = sv_2mortal(newSViv(sv_len(*SP)));
1810 *(ORIGMARK+1) = SvTIED_obj((SV*)io, mg);
1812 call_method("WRITE", G_SCALAR);
1828 if (!io || !IoIFP(io)) {
1830 if (ckWARN(WARN_CLOSED))
1831 report_evil_fh(gv, io, PL_op->op_type);
1832 SETERRNO(EBADF,RMS_IFI);
1836 /* Do this first to trigger any overloading. */
1837 buffer = SvPV_const(bufsv, blen);
1838 orig_blen_bytes = blen;
1839 doing_utf8 = DO_UTF8(bufsv);
1841 if (PerlIO_isutf8(IoIFP(io))) {
1842 if (!SvUTF8(bufsv)) {
1843 /* We don't modify the original scalar. */
1844 tmpbuf = bytes_to_utf8((const U8*) buffer, &blen);
1845 buffer = (char *) tmpbuf;
1849 else if (doing_utf8) {
1850 STRLEN tmplen = blen;
1851 U8 * const result = bytes_from_utf8((const U8*) buffer, &tmplen, &doing_utf8);
1854 buffer = (char *) tmpbuf;
1858 assert((char *)result == buffer);
1859 Perl_croak(aTHX_ "Wide character in %s", OP_DESC(PL_op));
1863 if (op_type == OP_SYSWRITE) {
1864 Size_t length = 0; /* This length is in characters. */
1870 /* The SV is bytes, and we've had to upgrade it. */
1871 blen_chars = orig_blen_bytes;
1873 /* The SV really is UTF-8. */
1874 if (SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
1875 /* Don't call sv_len_utf8 again because it will call magic
1876 or overloading a second time, and we might get back a
1877 different result. */
1878 blen_chars = utf8_length((U8*)buffer, (U8*)buffer + blen);
1880 /* It's safe, and it may well be cached. */
1881 blen_chars = sv_len_utf8(bufsv);
1889 length = blen_chars;
1891 #if Size_t_size > IVSIZE
1892 length = (Size_t)SvNVx(*++MARK);
1894 length = (Size_t)SvIVx(*++MARK);
1896 if ((SSize_t)length < 0) {
1898 DIE(aTHX_ "Negative length");
1903 offset = SvIVx(*++MARK);
1905 if (-offset > (IV)blen_chars) {
1907 DIE(aTHX_ "Offset outside string");
1909 offset += blen_chars;
1910 } else if (offset >= (IV)blen_chars && blen_chars > 0) {
1912 DIE(aTHX_ "Offset outside string");
1916 if (length > blen_chars - offset)
1917 length = blen_chars - offset;
1919 /* Here we convert length from characters to bytes. */
1920 if (tmpbuf || SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
1921 /* Either we had to convert the SV, or the SV is magical, or
1922 the SV has overloading, in which case we can't or mustn't
1923 or mustn't call it again. */
1925 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1926 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1928 /* It's a real UTF-8 SV, and it's not going to change under
1929 us. Take advantage of any cache. */
1931 I32 len_I32 = length;
1933 /* Convert the start and end character positions to bytes.
1934 Remember that the second argument to sv_pos_u2b is relative
1936 sv_pos_u2b(bufsv, &start, &len_I32);
1943 buffer = buffer+offset;
1945 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1946 if (IoTYPE(io) == IoTYPE_SOCKET) {
1947 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1953 /* See the note at doio.c:do_print about filesize limits. --jhi */
1954 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1960 const int flags = SvIVx(*++MARK);
1963 char * const sockbuf = SvPVx(*++MARK, mlen);
1964 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1965 flags, (struct sockaddr *)sockbuf, mlen);
1969 = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, flags);
1974 DIE(aTHX_ PL_no_sock_func, "send");
1981 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1984 #if Size_t_size > IVSIZE
2003 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
2005 gv = PL_last_in_gv = GvEGV(PL_argvgv);
2007 if (io && !IoIFP(io)) {
2008 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
2010 IoFLAGS(io) &= ~IOf_START;
2011 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, NULL);
2012 sv_setpvn(GvSV(gv), "-", 1);
2013 SvSETMAGIC(GvSV(gv));
2015 else if (!nextargv(gv))
2020 gv = PL_last_in_gv; /* eof */
2023 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
2026 IO * const io = GvIO(gv);
2028 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
2030 XPUSHs(SvTIED_obj((SV*)io, mg));
2033 call_method("EOF", G_SCALAR);
2040 PUSHs(boolSV(!gv || do_eof(gv)));
2051 PL_last_in_gv = (GV*)POPs;
2054 if (gv && (io = GvIO(gv))) {
2055 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
2058 XPUSHs(SvTIED_obj((SV*)io, mg));
2061 call_method("TELL", G_SCALAR);
2068 #if LSEEKSIZE > IVSIZE
2069 PUSHn( do_tell(gv) );
2071 PUSHi( do_tell(gv) );
2079 const int whence = POPi;
2080 #if LSEEKSIZE > IVSIZE
2081 const Off_t offset = (Off_t)SvNVx(POPs);
2083 const Off_t offset = (Off_t)SvIVx(POPs);
2086 GV * const gv = PL_last_in_gv = (GV*)POPs;
2089 if (gv && (io = GvIO(gv))) {
2090 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
2093 XPUSHs(SvTIED_obj((SV*)io, mg));
2094 #if LSEEKSIZE > IVSIZE
2095 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2097 XPUSHs(sv_2mortal(newSViv(offset)));
2099 XPUSHs(sv_2mortal(newSViv(whence)));
2102 call_method("SEEK", G_SCALAR);
2109 if (PL_op->op_type == OP_SEEK)
2110 PUSHs(boolSV(do_seek(gv, offset, whence)));
2112 const Off_t sought = do_sysseek(gv, offset, whence);
2114 PUSHs(&PL_sv_undef);
2116 SV* const sv = sought ?
2117 #if LSEEKSIZE > IVSIZE
2122 : newSVpvn(zero_but_true, ZBTLEN);
2123 PUSHs(sv_2mortal(sv));
2133 /* There seems to be no consensus on the length type of truncate()
2134 * and ftruncate(), both off_t and size_t have supporters. In
2135 * general one would think that when using large files, off_t is
2136 * at least as wide as size_t, so using an off_t should be okay. */
2137 /* XXX Configure probe for the length type of *truncate() needed XXX */
2140 #if Off_t_size > IVSIZE
2145 /* Checking for length < 0 is problematic as the type might or
2146 * might not be signed: if it is not, clever compilers will moan. */
2147 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2154 if (PL_op->op_flags & OPf_SPECIAL) {
2155 tmpgv = gv_fetchsv(POPs, 0, SVt_PVIO);
2164 TAINT_PROPER("truncate");
2165 if (!(fp = IoIFP(io))) {
2171 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2173 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2180 SV * const sv = POPs;
2183 if (SvTYPE(sv) == SVt_PVGV) {
2184 tmpgv = (GV*)sv; /* *main::FRED for example */
2185 goto do_ftruncate_gv;
2187 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2188 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2189 goto do_ftruncate_gv;
2191 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2192 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2193 goto do_ftruncate_io;
2196 name = SvPV_nolen_const(sv);
2197 TAINT_PROPER("truncate");
2199 if (truncate(name, len) < 0)
2203 const int tmpfd = PerlLIO_open(name, O_RDWR);
2208 if (my_chsize(tmpfd, len) < 0)
2210 PerlLIO_close(tmpfd);
2219 SETERRNO(EBADF,RMS_IFI);
2227 SV * const argsv = POPs;
2228 const unsigned int func = POPu;
2229 const int optype = PL_op->op_type;
2230 GV * const gv = (GV*)POPs;
2231 IO * const io = gv ? GvIOn(gv) : NULL;
2235 if (!io || !argsv || !IoIFP(io)) {
2236 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2237 report_evil_fh(gv, io, PL_op->op_type);
2238 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2242 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2245 s = SvPV_force(argsv, len);
2246 need = IOCPARM_LEN(func);
2248 s = Sv_Grow(argsv, need + 1);
2249 SvCUR_set(argsv, need);
2252 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2255 retval = SvIV(argsv);
2256 s = INT2PTR(char*,retval); /* ouch */
2259 TAINT_PROPER(PL_op_desc[optype]);
2261 if (optype == OP_IOCTL)
2263 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2265 DIE(aTHX_ "ioctl is not implemented");
2269 DIE(aTHX_ "fcntl is not implemented");
2271 #if defined(OS2) && defined(__EMX__)
2272 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2274 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2278 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2280 if (s[SvCUR(argsv)] != 17)
2281 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2283 s[SvCUR(argsv)] = 0; /* put our null back */
2284 SvSETMAGIC(argsv); /* Assume it has changed */
2293 PUSHp(zero_but_true, ZBTLEN);
2306 const int argtype = POPi;
2307 GV * const gv = (MAXARG == 0) ? PL_last_in_gv : (GV*)POPs;
2309 if (gv && (io = GvIO(gv)))
2315 /* XXX Looks to me like io is always NULL at this point */
2317 (void)PerlIO_flush(fp);
2318 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2321 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2322 report_evil_fh(gv, io, PL_op->op_type);
2324 SETERRNO(EBADF,RMS_IFI);
2329 DIE(aTHX_ PL_no_func, "flock()");
2339 const int protocol = POPi;
2340 const int type = POPi;
2341 const int domain = POPi;
2342 GV * const gv = (GV*)POPs;
2343 register IO * const io = gv ? GvIOn(gv) : NULL;
2347 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2348 report_evil_fh(gv, io, PL_op->op_type);
2349 if (io && IoIFP(io))
2350 do_close(gv, FALSE);
2351 SETERRNO(EBADF,LIB_INVARG);
2356 do_close(gv, FALSE);
2358 TAINT_PROPER("socket");
2359 fd = PerlSock_socket(domain, type, protocol);
2362 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2363 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2364 IoTYPE(io) = IoTYPE_SOCKET;
2365 if (!IoIFP(io) || !IoOFP(io)) {
2366 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2367 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2368 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2371 #if defined(HAS_FCNTL) && defined(F_SETFD)
2372 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2376 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2381 DIE(aTHX_ PL_no_sock_func, "socket");
2387 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2389 const int protocol = POPi;
2390 const int type = POPi;
2391 const int domain = POPi;
2392 GV * const gv2 = (GV*)POPs;
2393 GV * const gv1 = (GV*)POPs;
2394 register IO * const io1 = gv1 ? GvIOn(gv1) : NULL;
2395 register IO * const io2 = gv2 ? GvIOn(gv2) : NULL;
2398 if (!gv1 || !gv2 || !io1 || !io2) {
2399 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2401 report_evil_fh(gv1, io1, PL_op->op_type);
2403 report_evil_fh(gv1, io2, PL_op->op_type);
2405 if (io1 && IoIFP(io1))
2406 do_close(gv1, FALSE);
2407 if (io2 && IoIFP(io2))
2408 do_close(gv2, FALSE);
2413 do_close(gv1, FALSE);
2415 do_close(gv2, FALSE);
2417 TAINT_PROPER("socketpair");
2418 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2420 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2421 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2422 IoTYPE(io1) = IoTYPE_SOCKET;
2423 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2424 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2425 IoTYPE(io2) = IoTYPE_SOCKET;
2426 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2427 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2428 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2429 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2430 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2431 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2432 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2435 #if defined(HAS_FCNTL) && defined(F_SETFD)
2436 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2437 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2442 DIE(aTHX_ PL_no_sock_func, "socketpair");
2450 SV * const addrsv = POPs;
2451 /* OK, so on what platform does bind modify addr? */
2453 GV * const gv = (GV*)POPs;
2454 register IO * const io = GvIOn(gv);
2457 if (!io || !IoIFP(io))
2460 addr = SvPV_const(addrsv, len);
2461 TAINT_PROPER("bind");
2462 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2468 if (ckWARN(WARN_CLOSED))
2469 report_evil_fh(gv, io, PL_op->op_type);
2470 SETERRNO(EBADF,SS_IVCHAN);
2473 DIE(aTHX_ PL_no_sock_func, "bind");
2481 SV * const addrsv = POPs;
2482 GV * const gv = (GV*)POPs;
2483 register IO * const io = GvIOn(gv);
2487 if (!io || !IoIFP(io))
2490 addr = SvPV_const(addrsv, len);
2491 TAINT_PROPER("connect");
2492 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2498 if (ckWARN(WARN_CLOSED))
2499 report_evil_fh(gv, io, PL_op->op_type);
2500 SETERRNO(EBADF,SS_IVCHAN);
2503 DIE(aTHX_ PL_no_sock_func, "connect");
2511 const int backlog = POPi;
2512 GV * const gv = (GV*)POPs;
2513 register IO * const io = gv ? GvIOn(gv) : NULL;
2515 if (!gv || !io || !IoIFP(io))
2518 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2524 if (ckWARN(WARN_CLOSED))
2525 report_evil_fh(gv, io, PL_op->op_type);
2526 SETERRNO(EBADF,SS_IVCHAN);
2529 DIE(aTHX_ PL_no_sock_func, "listen");
2539 char namebuf[MAXPATHLEN];
2540 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2541 Sock_size_t len = sizeof (struct sockaddr_in);
2543 Sock_size_t len = sizeof namebuf;
2545 GV * const ggv = (GV*)POPs;
2546 GV * const ngv = (GV*)POPs;
2555 if (!gstio || !IoIFP(gstio))
2559 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2562 /* Some platforms indicate zero length when an AF_UNIX client is
2563 * not bound. Simulate a non-zero-length sockaddr structure in
2565 namebuf[0] = 0; /* sun_len */
2566 namebuf[1] = AF_UNIX; /* sun_family */
2574 do_close(ngv, FALSE);
2575 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2576 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2577 IoTYPE(nstio) = IoTYPE_SOCKET;
2578 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2579 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2580 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2581 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2584 #if defined(HAS_FCNTL) && defined(F_SETFD)
2585 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2589 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2590 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2592 #ifdef __SCO_VERSION__
2593 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2596 PUSHp(namebuf, len);
2600 if (ckWARN(WARN_CLOSED))
2601 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2602 SETERRNO(EBADF,SS_IVCHAN);
2608 DIE(aTHX_ PL_no_sock_func, "accept");
2616 const int how = POPi;
2617 GV * const gv = (GV*)POPs;
2618 register IO * const io = GvIOn(gv);
2620 if (!io || !IoIFP(io))
2623 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2627 if (ckWARN(WARN_CLOSED))
2628 report_evil_fh(gv, io, PL_op->op_type);
2629 SETERRNO(EBADF,SS_IVCHAN);
2632 DIE(aTHX_ PL_no_sock_func, "shutdown");
2640 const int optype = PL_op->op_type;
2641 SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
2642 const unsigned int optname = (unsigned int) POPi;
2643 const unsigned int lvl = (unsigned int) POPi;
2644 GV * const gv = (GV*)POPs;
2645 register IO * const io = GvIOn(gv);
2649 if (!io || !IoIFP(io))
2652 fd = PerlIO_fileno(IoIFP(io));
2656 (void)SvPOK_only(sv);
2660 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2667 #if defined(__SYMBIAN32__)
2668 # define SETSOCKOPT_OPTION_VALUE_T void *
2670 # define SETSOCKOPT_OPTION_VALUE_T const char *
2672 /* XXX TODO: We need to have a proper type (a Configure probe,
2673 * etc.) for what the C headers think of the third argument of
2674 * setsockopt(), the option_value read-only buffer: is it
2675 * a "char *", or a "void *", const or not. Some compilers
2676 * don't take kindly to e.g. assuming that "char *" implicitly
2677 * promotes to a "void *", or to explicitly promoting/demoting
2678 * consts to non/vice versa. The "const void *" is the SUS
2679 * definition, but that does not fly everywhere for the above
2681 SETSOCKOPT_OPTION_VALUE_T buf;
2685 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2689 aint = (int)SvIV(sv);
2690 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
2693 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2702 if (ckWARN(WARN_CLOSED))
2703 report_evil_fh(gv, io, optype);
2704 SETERRNO(EBADF,SS_IVCHAN);
2709 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2717 const int optype = PL_op->op_type;
2718 GV * const gv = (GV*)POPs;
2719 register IO * const io = GvIOn(gv);
2724 if (!io || !IoIFP(io))
2727 sv = sv_2mortal(newSV(257));
2728 (void)SvPOK_only(sv);
2732 fd = PerlIO_fileno(IoIFP(io));
2734 case OP_GETSOCKNAME:
2735 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2738 case OP_GETPEERNAME:
2739 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2741 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2743 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";
2744 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2745 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2746 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
2747 sizeof(u_short) + sizeof(struct in_addr))) {
2754 #ifdef BOGUS_GETNAME_RETURN
2755 /* Interactive Unix, getpeername() and getsockname()
2756 does not return valid namelen */
2757 if (len == BOGUS_GETNAME_RETURN)
2758 len = sizeof(struct sockaddr);
2766 if (ckWARN(WARN_CLOSED))
2767 report_evil_fh(gv, io, optype);
2768 SETERRNO(EBADF,SS_IVCHAN);
2773 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2787 if (PL_op->op_flags & OPf_REF) {
2789 if (PL_op->op_type == OP_LSTAT) {
2790 if (gv != PL_defgv) {
2791 do_fstat_warning_check:
2792 if (ckWARN(WARN_IO))
2793 Perl_warner(aTHX_ packWARN(WARN_IO),
2794 "lstat() on filehandle %s", GvENAME(gv));
2795 } else if (PL_laststype != OP_LSTAT)
2796 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2800 if (gv != PL_defgv) {
2801 PL_laststype = OP_STAT;
2803 sv_setpvn(PL_statname, "", 0);
2805 IO* const io = GvIO(gv);
2809 PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2810 } else if (IoDIRP(io)) {
2813 PerlLIO_fstat(dirfd(IoDIRP(io)), &PL_statcache);
2815 DIE(aTHX_ PL_no_func, "dirfd");
2818 PL_laststatval = -1;
2824 if (PL_laststatval < 0) {
2825 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2826 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2831 SV* const sv = POPs;
2832 if (SvTYPE(sv) == SVt_PVGV) {
2836 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2838 if (PL_op->op_type == OP_LSTAT)
2839 goto do_fstat_warning_check;
2842 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2844 PL_laststype = PL_op->op_type;
2845 if (PL_op->op_type == OP_LSTAT)
2846 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2848 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2849 if (PL_laststatval < 0) {
2850 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2851 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2857 if (gimme != G_ARRAY) {
2858 if (gimme != G_VOID)
2859 XPUSHs(boolSV(max));
2865 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2866 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2867 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2868 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2869 #if Uid_t_size > IVSIZE
2870 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2872 # if Uid_t_sign <= 0
2873 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2875 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2878 #if Gid_t_size > IVSIZE
2879 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2881 # if Gid_t_sign <= 0
2882 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2884 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2887 #ifdef USE_STAT_RDEV
2888 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2890 PUSHs(sv_2mortal(newSVpvs("")));
2892 #if Off_t_size > IVSIZE
2893 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2895 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2898 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2899 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2900 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2902 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2903 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2904 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2906 #ifdef USE_STAT_BLOCKS
2907 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2908 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2910 PUSHs(sv_2mortal(newSVpvs("")));
2911 PUSHs(sv_2mortal(newSVpvs("")));
2917 /* This macro is used by the stacked filetest operators :
2918 * if the previous filetest failed, short-circuit and pass its value.
2919 * Else, discard it from the stack and continue. --rgs
2921 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2922 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2923 else { (void)POPs; PUTBACK; } \
2930 /* Not const, because things tweak this below. Not bool, because there's
2931 no guarantee that OPp_FT_ACCESS is <= CHAR_MAX */
2932 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2933 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
2934 /* Giving some sort of initial value silences compilers. */
2936 int access_mode = R_OK;
2938 int access_mode = 0;
2941 /* access_mode is never used, but leaving use_access in makes the
2942 conditional compiling below much clearer. */
2945 int stat_mode = S_IRUSR;
2947 bool effective = FALSE;
2950 STACKED_FTEST_CHECK;
2952 switch (PL_op->op_type) {
2954 #if !(defined(HAS_ACCESS) && defined(R_OK))
2960 #if defined(HAS_ACCESS) && defined(W_OK)
2965 stat_mode = S_IWUSR;
2969 #if defined(HAS_ACCESS) && defined(X_OK)
2974 stat_mode = S_IXUSR;
2978 #ifdef PERL_EFF_ACCESS
2981 stat_mode = S_IWUSR;
2985 #ifndef PERL_EFF_ACCESS
2993 #ifdef PERL_EFF_ACCESS
2998 stat_mode = S_IXUSR;
3004 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
3005 const char *const name = POPpx;
3007 # ifdef PERL_EFF_ACCESS
3008 result = PERL_EFF_ACCESS(name, access_mode);
3010 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
3016 result = access(name, access_mode);
3018 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
3033 if (cando(stat_mode, effective, &PL_statcache))
3042 const int op_type = PL_op->op_type;
3044 STACKED_FTEST_CHECK;
3049 if (op_type == OP_FTIS)
3052 /* You can't dTARGET inside OP_FTIS, because you'll get
3053 "panic: pad_sv po" - the op is not flagged to have a target. */
3057 #if Off_t_size > IVSIZE
3058 PUSHn(PL_statcache.st_size);
3060 PUSHi(PL_statcache.st_size);
3064 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3067 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3070 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3083 /* I believe that all these three are likely to be defined on most every
3084 system these days. */
3086 if(PL_op->op_type == OP_FTSUID)
3090 if(PL_op->op_type == OP_FTSGID)
3094 if(PL_op->op_type == OP_FTSVTX)
3098 STACKED_FTEST_CHECK;
3103 switch (PL_op->op_type) {
3105 if (PL_statcache.st_uid == PL_uid)
3109 if (PL_statcache.st_uid == PL_euid)
3113 if (PL_statcache.st_size == 0)
3117 if (S_ISSOCK(PL_statcache.st_mode))
3121 if (S_ISCHR(PL_statcache.st_mode))
3125 if (S_ISBLK(PL_statcache.st_mode))
3129 if (S_ISREG(PL_statcache.st_mode))
3133 if (S_ISDIR(PL_statcache.st_mode))
3137 if (S_ISFIFO(PL_statcache.st_mode))
3142 if (PL_statcache.st_mode & S_ISUID)
3148 if (PL_statcache.st_mode & S_ISGID)
3154 if (PL_statcache.st_mode & S_ISVTX)
3165 I32 result = my_lstat();
3169 if (S_ISLNK(PL_statcache.st_mode))
3182 STACKED_FTEST_CHECK;
3184 if (PL_op->op_flags & OPf_REF)
3186 else if (isGV(TOPs))
3188 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3189 gv = (GV*)SvRV(POPs);
3191 gv = gv_fetchsv(tmpsv = POPs, 0, SVt_PVIO);
3193 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3194 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3195 else if (tmpsv && SvOK(tmpsv)) {
3196 const char *tmps = SvPV_nolen_const(tmpsv);
3204 if (PerlLIO_isatty(fd))
3209 #if defined(atarist) /* this will work with atariST. Configure will
3210 make guesses for other systems. */
3211 # define FILE_base(f) ((f)->_base)
3212 # define FILE_ptr(f) ((f)->_ptr)
3213 # define FILE_cnt(f) ((f)->_cnt)
3214 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3225 register STDCHAR *s;
3231 STACKED_FTEST_CHECK;
3233 if (PL_op->op_flags & OPf_REF)
3235 else if (isGV(TOPs))
3237 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3238 gv = (GV*)SvRV(POPs);
3244 if (gv == PL_defgv) {
3246 io = GvIO(PL_statgv);
3249 goto really_filename;
3254 PL_laststatval = -1;
3255 sv_setpvn(PL_statname, "", 0);
3256 io = GvIO(PL_statgv);
3258 if (io && IoIFP(io)) {
3259 if (! PerlIO_has_base(IoIFP(io)))
3260 DIE(aTHX_ "-T and -B not implemented on filehandles");
3261 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3262 if (PL_laststatval < 0)
3264 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3265 if (PL_op->op_type == OP_FTTEXT)
3270 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3271 i = PerlIO_getc(IoIFP(io));
3273 (void)PerlIO_ungetc(IoIFP(io),i);
3275 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3277 len = PerlIO_get_bufsiz(IoIFP(io));
3278 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3279 /* sfio can have large buffers - limit to 512 */
3284 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3286 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3288 SETERRNO(EBADF,RMS_IFI);
3296 PL_laststype = OP_STAT;
3297 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3298 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3299 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3301 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3304 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3305 if (PL_laststatval < 0) {
3306 (void)PerlIO_close(fp);
3309 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL);
3310 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3311 (void)PerlIO_close(fp);
3313 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3314 RETPUSHNO; /* special case NFS directories */
3315 RETPUSHYES; /* null file is anything */
3320 /* now scan s to look for textiness */
3321 /* XXX ASCII dependent code */
3323 #if defined(DOSISH) || defined(USEMYBINMODE)
3324 /* ignore trailing ^Z on short files */
3325 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3329 for (i = 0; i < len; i++, s++) {
3330 if (!*s) { /* null never allowed in text */
3335 else if (!(isPRINT(*s) || isSPACE(*s)))
3338 else if (*s & 128) {
3340 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3343 /* utf8 characters don't count as odd */
3344 if (UTF8_IS_START(*s)) {
3345 int ulen = UTF8SKIP(s);
3346 if (ulen < len - i) {
3348 for (j = 1; j < ulen; j++) {
3349 if (!UTF8_IS_CONTINUATION(s[j]))
3352 --ulen; /* loop does extra increment */
3362 *s != '\n' && *s != '\r' && *s != '\b' &&
3363 *s != '\t' && *s != '\f' && *s != 27)
3368 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3379 const char *tmps = NULL;
3383 SV * const sv = POPs;
3384 if (PL_op->op_flags & OPf_SPECIAL) {
3385 gv = gv_fetchsv(sv, 0, SVt_PVIO);
3387 else if (SvTYPE(sv) == SVt_PVGV) {
3390 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3394 tmps = SvPVx_nolen_const(sv);
3398 if( !gv && (!tmps || !*tmps) ) {
3399 HV * const table = GvHVn(PL_envgv);
3402 if ( (svp = hv_fetchs(table, "HOME", FALSE))
3403 || (svp = hv_fetchs(table, "LOGDIR", FALSE))
3405 || (svp = hv_fetchs(table, "SYS$LOGIN", FALSE))
3410 deprecate("chdir('') or chdir(undef) as chdir()");
3411 tmps = SvPV_nolen_const(*svp);
3415 TAINT_PROPER("chdir");
3420 TAINT_PROPER("chdir");
3423 IO* const io = GvIO(gv);
3426 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3428 else if (IoDIRP(io)) {
3430 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3432 DIE(aTHX_ PL_no_func, "dirfd");
3436 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
3437 report_evil_fh(gv, io, PL_op->op_type);
3438 SETERRNO(EBADF, RMS_IFI);
3443 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
3444 report_evil_fh(gv, io, PL_op->op_type);
3445 SETERRNO(EBADF,RMS_IFI);
3449 DIE(aTHX_ PL_no_func, "fchdir");
3453 PUSHi( PerlDir_chdir(tmps) >= 0 );
3455 /* Clear the DEFAULT element of ENV so we'll get the new value
3457 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3464 dVAR; dSP; dMARK; dTARGET;
3465 const I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3476 char * const tmps = POPpx;
3477 TAINT_PROPER("chroot");
3478 PUSHi( chroot(tmps) >= 0 );
3481 DIE(aTHX_ PL_no_func, "chroot");
3489 const char * const tmps2 = POPpconstx;
3490 const char * const tmps = SvPV_nolen_const(TOPs);
3491 TAINT_PROPER("rename");
3493 anum = PerlLIO_rename(tmps, tmps2);
3495 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3496 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3499 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3500 (void)UNLINK(tmps2);
3501 if (!(anum = link(tmps, tmps2)))
3502 anum = UNLINK(tmps);
3510 #if defined(HAS_LINK) || defined(HAS_SYMLINK)
3514 const int op_type = PL_op->op_type;
3518 if (op_type == OP_LINK)
3519 DIE(aTHX_ PL_no_func, "link");
3521 # ifndef HAS_SYMLINK
3522 if (op_type == OP_SYMLINK)
3523 DIE(aTHX_ PL_no_func, "symlink");
3527 const char * const tmps2 = POPpconstx;
3528 const char * const tmps = SvPV_nolen_const(TOPs);
3529 TAINT_PROPER(PL_op_desc[op_type]);
3531 # if defined(HAS_LINK)
3532 # if defined(HAS_SYMLINK)
3533 /* Both present - need to choose which. */
3534 (op_type == OP_LINK) ?
3535 PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2);
3537 /* Only have link, so calls to pp_symlink will have DIE()d above. */
3538 PerlLIO_link(tmps, tmps2);
3541 # if defined(HAS_SYMLINK)
3542 /* Only have symlink, so calls to pp_link will have DIE()d above. */
3543 symlink(tmps, tmps2);
3548 SETi( result >= 0 );
3555 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
3566 char buf[MAXPATHLEN];
3569 #ifndef INCOMPLETE_TAINTS
3573 len = readlink(tmps, buf, sizeof(buf) - 1);
3581 RETSETUNDEF; /* just pretend it's a normal file */
3585 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3587 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3589 char * const save_filename = filename;
3594 Size_t size = strlen(cmd) + (strlen(filename) * 2) + 10;
3596 Newx(cmdline, size, char);
3597 my_strlcpy(cmdline, cmd, size);
3598 my_strlcat(cmdline, " ", size);
3599 for (s = cmdline + strlen(cmdline); *filename; ) {
3603 if (s - cmdline < size)
3604 my_strlcpy(s, " 2>&1", size - (s - cmdline));
3605 myfp = PerlProc_popen(cmdline, "r");
3609 SV * const tmpsv = sv_newmortal();
3610 /* Need to save/restore 'PL_rs' ?? */
3611 s = sv_gets(tmpsv, myfp, 0);
3612 (void)PerlProc_pclose(myfp);
3616 #ifdef HAS_SYS_ERRLIST
3621 /* you don't see this */
3622 const char * const errmsg =
3623 #ifdef HAS_SYS_ERRLIST
3631 if (instr(s, errmsg)) {
3638 #define EACCES EPERM
3640 if (instr(s, "cannot make"))
3641 SETERRNO(EEXIST,RMS_FEX);
3642 else if (instr(s, "existing file"))
3643 SETERRNO(EEXIST,RMS_FEX);
3644 else if (instr(s, "ile exists"))
3645 SETERRNO(EEXIST,RMS_FEX);
3646 else if (instr(s, "non-exist"))
3647 SETERRNO(ENOENT,RMS_FNF);
3648 else if (instr(s, "does not exist"))
3649 SETERRNO(ENOENT,RMS_FNF);
3650 else if (instr(s, "not empty"))
3651 SETERRNO(EBUSY,SS_DEVOFFLINE);
3652 else if (instr(s, "cannot access"))
3653 SETERRNO(EACCES,RMS_PRV);
3655 SETERRNO(EPERM,RMS_PRV);
3658 else { /* some mkdirs return no failure indication */
3659 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3660 if (PL_op->op_type == OP_RMDIR)
3665 SETERRNO(EACCES,RMS_PRV); /* a guess */
3674 /* This macro removes trailing slashes from a directory name.
3675 * Different operating and file systems take differently to
3676 * trailing slashes. According to POSIX 1003.1 1996 Edition
3677 * any number of trailing slashes should be allowed.
3678 * Thusly we snip them away so that even non-conforming
3679 * systems are happy.
3680 * We should probably do this "filtering" for all
3681 * the functions that expect (potentially) directory names:
3682 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3683 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3685 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3686 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3689 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3690 (tmps) = savepvn((tmps), (len)); \
3700 const int mode = (MAXARG > 1) ? POPi : 0777;
3702 TRIMSLASHES(tmps,len,copy);
3704 TAINT_PROPER("mkdir");
3706 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3710 SETi( dooneliner("mkdir", tmps) );
3711 oldumask = PerlLIO_umask(0);
3712 PerlLIO_umask(oldumask);
3713 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3728 TRIMSLASHES(tmps,len,copy);
3729 TAINT_PROPER("rmdir");
3731 SETi( PerlDir_rmdir(tmps) >= 0 );
3733 SETi( dooneliner("rmdir", tmps) );
3740 /* Directory calls. */
3744 #if defined(Direntry_t) && defined(HAS_READDIR)
3746 const char * const dirname = POPpconstx;
3747 GV * const gv = (GV*)POPs;
3748 register IO * const io = GvIOn(gv);
3754 PerlDir_close(IoDIRP(io));
3755 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3761 SETERRNO(EBADF,RMS_DIR);
3764 DIE(aTHX_ PL_no_dir_func, "opendir");
3770 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3771 DIE(aTHX_ PL_no_dir_func, "readdir");
3773 #if !defined(I_DIRENT) && !defined(VMS)
3774 Direntry_t *readdir (DIR *);
3780 const I32 gimme = GIMME;
3781 GV * const gv = (GV *)POPs;
3782 register const Direntry_t *dp;
3783 register IO * const io = GvIOn(gv);
3785 if (!io || !IoDIRP(io)) {
3786 if(ckWARN(WARN_IO)) {
3787 Perl_warner(aTHX_ packWARN(WARN_IO),
3788 "readdir() attempted on invalid dirhandle %s", GvENAME(gv));
3794 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3798 sv = newSVpvn(dp->d_name, dp->d_namlen);
3800 sv = newSVpv(dp->d_name, 0);
3802 #ifndef INCOMPLETE_TAINTS
3803 if (!(IoFLAGS(io) & IOf_UNTAINT))
3806 XPUSHs(sv_2mortal(sv));
3807 } while (gimme == G_ARRAY);
3809 if (!dp && gimme != G_ARRAY)
3816 SETERRNO(EBADF,RMS_ISI);
3817 if (GIMME == G_ARRAY)
3826 #if defined(HAS_TELLDIR) || defined(telldir)
3828 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3829 /* XXX netbsd still seemed to.
3830 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3831 --JHI 1999-Feb-02 */
3832 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3833 long telldir (DIR *);
3835 GV * const gv = (GV*)POPs;
3836 register IO * const io = GvIOn(gv);
3838 if (!io || !IoDIRP(io)) {
3839 if(ckWARN(WARN_IO)) {
3840 Perl_warner(aTHX_ packWARN(WARN_IO),
3841 "telldir() attempted on invalid dirhandle %s", GvENAME(gv));
3846 PUSHi( PerlDir_tell(IoDIRP(io)) );
3850 SETERRNO(EBADF,RMS_ISI);
3853 DIE(aTHX_ PL_no_dir_func, "telldir");
3859 #if defined(HAS_SEEKDIR) || defined(seekdir)
3861 const long along = POPl;
3862 GV * const gv = (GV*)POPs;
3863 register IO * const io = GvIOn(gv);
3865 if (!io || !IoDIRP(io)) {
3866 if(ckWARN(WARN_IO)) {
3867 Perl_warner(aTHX_ packWARN(WARN_IO),
3868 "seekdir() attempted on invalid dirhandle %s", GvENAME(gv));
3872 (void)PerlDir_seek(IoDIRP(io), along);
3877 SETERRNO(EBADF,RMS_ISI);
3880 DIE(aTHX_ PL_no_dir_func, "seekdir");
3886 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3888 GV * const gv = (GV*)POPs;
3889 register IO * const io = GvIOn(gv);
3891 if (!io || !IoDIRP(io)) {
3892 if(ckWARN(WARN_IO)) {
3893 Perl_warner(aTHX_ packWARN(WARN_IO),
3894 "rewinddir() attempted on invalid dirhandle %s", GvENAME(gv));
3898 (void)PerlDir_rewind(IoDIRP(io));
3902 SETERRNO(EBADF,RMS_ISI);
3905 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3911 #if defined(Direntry_t) && defined(HAS_READDIR)
3913 GV * const gv = (GV*)POPs;
3914 register IO * const io = GvIOn(gv);
3916 if (!io || !IoDIRP(io)) {
3917 if(ckWARN(WARN_IO)) {
3918 Perl_warner(aTHX_ packWARN(WARN_IO),
3919 "closedir() attempted on invalid dirhandle %s", GvENAME(gv));
3923 #ifdef VOID_CLOSEDIR
3924 PerlDir_close(IoDIRP(io));
3926 if (PerlDir_close(IoDIRP(io)) < 0) {
3927 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3936 SETERRNO(EBADF,RMS_IFI);
3939 DIE(aTHX_ PL_no_dir_func, "closedir");
3943 /* Process control. */
3952 PERL_FLUSHALL_FOR_CHILD;
3953 childpid = PerlProc_fork();
3957 GV * const tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV);
3959 SvREADONLY_off(GvSV(tmpgv));
3960 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3961 SvREADONLY_on(GvSV(tmpgv));
3963 #ifdef THREADS_HAVE_PIDS
3964 PL_ppid = (IV)getppid();
3966 #ifdef PERL_USES_PL_PIDSTATUS
3967 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3973 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3978 PERL_FLUSHALL_FOR_CHILD;
3979 childpid = PerlProc_fork();
3985 DIE(aTHX_ PL_no_func, "fork");
3992 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3997 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
3998 childpid = wait4pid(-1, &argflags, 0);
4000 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4005 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4006 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4007 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
4009 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
4014 DIE(aTHX_ PL_no_func, "wait");
4020 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4022 const int optype = POPi;
4023 const Pid_t pid = TOPi;
4027 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4028 result = wait4pid(pid, &argflags, optype);
4030 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4035 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4036 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4037 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
4039 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
4044 DIE(aTHX_ PL_no_func, "waitpid");
4050 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
4056 while (++MARK <= SP) {
4057 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4062 TAINT_PROPER("system");
4064 PERL_FLUSHALL_FOR_CHILD;
4065 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4071 if (PerlProc_pipe(pp) >= 0)
4073 while ((childpid = PerlProc_fork()) == -1) {
4074 if (errno != EAGAIN) {
4079 PerlLIO_close(pp[0]);
4080 PerlLIO_close(pp[1]);
4087 Sigsave_t ihand,qhand; /* place to save signals during system() */
4091 PerlLIO_close(pp[1]);
4093 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4094 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
4097 result = wait4pid(childpid, &status, 0);
4098 } while (result == -1 && errno == EINTR);
4100 (void)rsignal_restore(SIGINT, &ihand);
4101 (void)rsignal_restore(SIGQUIT, &qhand);
4103 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
4104 do_execfree(); /* free any memory child malloced on fork */
4111 while (n < sizeof(int)) {
4112 n1 = PerlLIO_read(pp[0],
4113 (void*)(((char*)&errkid)+n),
4119 PerlLIO_close(pp[0]);
4120 if (n) { /* Error */
4121 if (n != sizeof(int))
4122 DIE(aTHX_ "panic: kid popen errno read");
4123 errno = errkid; /* Propagate errno from kid */
4124 STATUS_NATIVE_CHILD_SET(-1);
4127 XPUSHi(STATUS_CURRENT);
4131 PerlLIO_close(pp[0]);
4132 #if defined(HAS_FCNTL) && defined(F_SETFD)
4133 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4136 if (PL_op->op_flags & OPf_STACKED) {
4137 SV * const really = *++MARK;
4138 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4140 else if (SP - MARK != 1)
4141 value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes);
4143 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4147 #else /* ! FORK or VMS or OS/2 */
4150 if (PL_op->op_flags & OPf_STACKED) {
4151 SV * const really = *++MARK;
4152 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4153 value = (I32)do_aspawn(really, MARK, SP);
4155 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4158 else if (SP - MARK != 1) {
4159 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4160 value = (I32)do_aspawn(NULL, MARK, SP);
4162 value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP);
4166 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4168 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4170 STATUS_NATIVE_CHILD_SET(value);
4173 XPUSHi(result ? value : STATUS_CURRENT);
4174 #endif /* !FORK or VMS */
4180 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
4185 while (++MARK <= SP) {
4186 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4191 TAINT_PROPER("exec");
4193 PERL_FLUSHALL_FOR_CHILD;
4194 if (PL_op->op_flags & OPf_STACKED) {
4195 SV * const really = *++MARK;
4196 value = (I32)do_aexec(really, MARK, SP);
4198 else if (SP - MARK != 1)
4200 value = (I32)vms_do_aexec(NULL, MARK, SP);
4204 (void ) do_aspawn(NULL, MARK, SP);
4208 value = (I32)do_aexec(NULL, MARK, SP);
4213 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4216 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4219 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4233 # ifdef THREADS_HAVE_PIDS
4234 if (PL_ppid != 1 && getppid() == 1)
4235 /* maybe the parent process has died. Refresh ppid cache */
4239 XPUSHi( getppid() );
4243 DIE(aTHX_ PL_no_func, "getppid");
4252 const Pid_t pid = (MAXARG < 1) ? 0 : SvIVx(POPs);
4255 pgrp = (I32)BSD_GETPGRP(pid);
4257 if (pid != 0 && pid != PerlProc_getpid())
4258 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4264 DIE(aTHX_ PL_no_func, "getpgrp()");
4283 TAINT_PROPER("setpgrp");
4285 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4287 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4288 || (pid != 0 && pid != PerlProc_getpid()))
4290 DIE(aTHX_ "setpgrp can't take arguments");
4292 SETi( setpgrp() >= 0 );
4293 #endif /* USE_BSDPGRP */
4296 DIE(aTHX_ PL_no_func, "setpgrp()");
4302 #ifdef HAS_GETPRIORITY
4304 const int who = POPi;
4305 const int which = TOPi;
4306 SETi( getpriority(which, who) );
4309 DIE(aTHX_ PL_no_func, "getpriority()");
4315 #ifdef HAS_SETPRIORITY
4317 const int niceval = POPi;
4318 const int who = POPi;
4319 const int which = TOPi;
4320 TAINT_PROPER("setpriority");
4321 SETi( setpriority(which, who, niceval) >= 0 );
4324 DIE(aTHX_ PL_no_func, "setpriority()");
4334 XPUSHn( time(NULL) );
4336 XPUSHi( time(NULL) );
4348 (void)PerlProc_times(&PL_timesbuf);
4350 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4351 /* struct tms, though same data */
4355 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4356 if (GIMME == G_ARRAY) {
4357 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4358 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4359 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4365 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4367 if (GIMME == G_ARRAY) {
4368 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4369 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4370 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4374 DIE(aTHX_ "times not implemented");
4376 #endif /* HAS_TIMES */
4379 #ifdef LOCALTIME_EDGECASE_BROKEN
4380 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4385 /* No workarounds in the valid range */
4386 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4387 return (localtime (tp));
4389 /* This edge case is to workaround the undefined behaviour, where the
4390 * TIMEZONE makes the time go beyond the defined range.
4391 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4392 * If there is a negative offset in TZ, like MET-1METDST, some broken
4393 * implementations of localtime () (like AIX 5.2) barf with bogus
4395 * 0x7fffffff gmtime 2038-01-19 03:14:07
4396 * 0x7fffffff localtime 1901-12-13 21:45:51
4397 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4398 * 0x3c19137f gmtime 2001-12-13 20:45:51
4399 * 0x3c19137f localtime 2001-12-13 21:45:51
4400 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4401 * Given that legal timezones are typically between GMT-12 and GMT+12
4402 * we turn back the clock 23 hours before calling the localtime
4403 * function, and add those to the return value. This will never cause
4404 * day wrapping problems, since the edge case is Tue Jan *19*
4406 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4409 if (P->tm_hour >= 24) {
4411 P->tm_mday++; /* 18 -> 19 */
4412 P->tm_wday++; /* Mon -> Tue */
4413 P->tm_yday++; /* 18 -> 19 */
4416 } /* S_my_localtime */
4424 const struct tm *tmbuf;
4425 static const char * const dayname[] =
4426 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4427 static const char * const monname[] =
4428 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4429 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4435 when = (Time_t)SvNVx(POPs);
4437 when = (Time_t)SvIVx(POPs);
4440 if (PL_op->op_type == OP_LOCALTIME)
4441 #ifdef LOCALTIME_EDGECASE_BROKEN
4442 tmbuf = S_my_localtime(aTHX_ &when);
4444 tmbuf = localtime(&when);
4447 tmbuf = gmtime(&when);
4449 if (GIMME != G_ARRAY) {
4455 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4456 dayname[tmbuf->tm_wday],
4457 monname[tmbuf->tm_mon],
4462 tmbuf->tm_year + 1900);
4463 PUSHs(sv_2mortal(tsv));
4468 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4469 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4470 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4471 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4472 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4473 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4474 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4475 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4476 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4487 anum = alarm((unsigned int)anum);
4494 DIE(aTHX_ PL_no_func, "alarm");
4505 (void)time(&lasttime);
4510 PerlProc_sleep((unsigned int)duration);
4513 XPUSHi(when - lasttime);
4517 /* Shared memory. */
4518 /* Merged with some message passing. */
4522 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4523 dVAR; dSP; dMARK; dTARGET;
4524 const int op_type = PL_op->op_type;
4529 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4532 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4535 value = (I32)(do_semop(MARK, SP) >= 0);
4538 value = (I32)(do_shmio(op_type, MARK, SP) >= 0);
4554 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4555 dVAR; dSP; dMARK; dTARGET;
4556 const int anum = do_ipcget(PL_op->op_type, MARK, SP);
4563 DIE(aTHX_ "System V IPC is not implemented on this machine");
4569 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4570 dVAR; dSP; dMARK; dTARGET;
4571 const int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4579 PUSHp(zero_but_true, ZBTLEN);
4587 /* I can't const this further without getting warnings about the types of
4588 various arrays passed in from structures. */
4590 S_space_join_names_mortal(pTHX_ char *const *array)
4594 if (array && *array) {
4595 target = sv_2mortal(newSVpvs(""));
4597 sv_catpv(target, *array);
4600 sv_catpvs(target, " ");
4603 target = sv_mortalcopy(&PL_sv_no);
4608 /* Get system info. */
4612 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4614 I32 which = PL_op->op_type;
4615 register char **elem;
4617 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4618 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4619 struct hostent *gethostbyname(Netdb_name_t);
4620 struct hostent *gethostent(void);
4622 struct hostent *hent;
4626 if (which == OP_GHBYNAME) {
4627 #ifdef HAS_GETHOSTBYNAME
4628 const char* const name = POPpbytex;
4629 hent = PerlSock_gethostbyname(name);
4631 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4634 else if (which == OP_GHBYADDR) {
4635 #ifdef HAS_GETHOSTBYADDR
4636 const int addrtype = POPi;
4637 SV * const addrsv = POPs;
4639 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4641 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4643 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4647 #ifdef HAS_GETHOSTENT
4648 hent = PerlSock_gethostent();
4650 DIE(aTHX_ PL_no_sock_func, "gethostent");
4653 #ifdef HOST_NOT_FOUND
4655 #ifdef USE_REENTRANT_API
4656 # ifdef USE_GETHOSTENT_ERRNO
4657 h_errno = PL_reentrant_buffer->_gethostent_errno;
4660 STATUS_UNIX_SET(h_errno);
4664 if (GIMME != G_ARRAY) {
4665 PUSHs(sv = sv_newmortal());
4667 if (which == OP_GHBYNAME) {
4669 sv_setpvn(sv, hent->h_addr, hent->h_length);
4672 sv_setpv(sv, (char*)hent->h_name);
4678 PUSHs(sv_2mortal(newSVpv((char*)hent->h_name, 0)));
4679 PUSHs(space_join_names_mortal(hent->h_aliases));
4680 PUSHs(sv_2mortal(newSViv((IV)hent->h_addrtype)));
4681 len = hent->h_length;
4682 PUSHs(sv_2mortal(newSViv((IV)len)));
4684 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4685 XPUSHs(sv_2mortal(newSVpvn(*elem, len)));
4689 PUSHs(newSVpvn(hent->h_addr, len));
4691 PUSHs(sv_mortalcopy(&PL_sv_no));
4696 DIE(aTHX_ PL_no_sock_func, "gethostent");
4702 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4704 I32 which = PL_op->op_type;
4706 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4707 struct netent *getnetbyaddr(Netdb_net_t, int);
4708 struct netent *getnetbyname(Netdb_name_t);
4709 struct netent *getnetent(void);
4711 struct netent *nent;
4713 if (which == OP_GNBYNAME){
4714 #ifdef HAS_GETNETBYNAME
4715 const char * const name = POPpbytex;
4716 nent = PerlSock_getnetbyname(name);
4718 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4721 else if (which == OP_GNBYADDR) {
4722 #ifdef HAS_GETNETBYADDR
4723 const int addrtype = POPi;
4724 const Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4725 nent = PerlSock_getnetbyaddr(addr, addrtype);
4727 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4731 #ifdef HAS_GETNETENT
4732 nent = PerlSock_getnetent();
4734 DIE(aTHX_ PL_no_sock_func, "getnetent");
4737 #ifdef HOST_NOT_FOUND
4739 #ifdef USE_REENTRANT_API
4740 # ifdef USE_GETNETENT_ERRNO
4741 h_errno = PL_reentrant_buffer->_getnetent_errno;
4744 STATUS_UNIX_SET(h_errno);
4749 if (GIMME != G_ARRAY) {
4750 PUSHs(sv = sv_newmortal());
4752 if (which == OP_GNBYNAME)
4753 sv_setiv(sv, (IV)nent->n_net);
4755 sv_setpv(sv, nent->n_name);
4761 PUSHs(sv_2mortal(newSVpv(nent->n_name, 0)));
4762 PUSHs(space_join_names_mortal(nent->n_aliases));
4763 PUSHs(sv_2mortal(newSViv((IV)nent->n_addrtype)));
4764 PUSHs(sv_2mortal(newSViv((IV)nent->n_net)));
4769 DIE(aTHX_ PL_no_sock_func, "getnetent");
4775 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4777 I32 which = PL_op->op_type;
4779 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4780 struct protoent *getprotobyname(Netdb_name_t);
4781 struct protoent *getprotobynumber(int);
4782 struct protoent *getprotoent(void);
4784 struct protoent *pent;
4786 if (which == OP_GPBYNAME) {
4787 #ifdef HAS_GETPROTOBYNAME
4788 const char* const name = POPpbytex;
4789 pent = PerlSock_getprotobyname(name);
4791 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4794 else if (which == OP_GPBYNUMBER) {
4795 #ifdef HAS_GETPROTOBYNUMBER
4796 const int number = POPi;
4797 pent = PerlSock_getprotobynumber(number);
4799 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4803 #ifdef HAS_GETPROTOENT
4804 pent = PerlSock_getprotoent();
4806 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4810 if (GIMME != G_ARRAY) {
4811 PUSHs(sv = sv_newmortal());
4813 if (which == OP_GPBYNAME)
4814 sv_setiv(sv, (IV)pent->p_proto);
4816 sv_setpv(sv, pent->p_name);
4822 PUSHs(sv_2mortal(newSVpv(pent->p_name, 0)));
4823 PUSHs(space_join_names_mortal(pent->p_aliases));
4824 PUSHs(sv_2mortal(newSViv((IV)pent->p_proto)));
4829 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4835 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4837 I32 which = PL_op->op_type;
4839 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4840 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4841 struct servent *getservbyport(int, Netdb_name_t);
4842 struct servent *getservent(void);
4844 struct servent *sent;
4846 if (which == OP_GSBYNAME) {
4847 #ifdef HAS_GETSERVBYNAME
4848 const char * const proto = POPpbytex;
4849 const char * const name = POPpbytex;
4850 sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto);
4852 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4855 else if (which == OP_GSBYPORT) {
4856 #ifdef HAS_GETSERVBYPORT
4857 const char * const proto = POPpbytex;
4858 unsigned short port = (unsigned short)POPu;
4860 port = PerlSock_htons(port);
4862 sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto);
4864 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4868 #ifdef HAS_GETSERVENT
4869 sent = PerlSock_getservent();
4871 DIE(aTHX_ PL_no_sock_func, "getservent");
4875 if (GIMME != G_ARRAY) {
4876 PUSHs(sv = sv_newmortal());
4878 if (which == OP_GSBYNAME) {
4880 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4882 sv_setiv(sv, (IV)(sent->s_port));
4886 sv_setpv(sv, sent->s_name);
4892 PUSHs(sv_2mortal(newSVpv(sent->s_name, 0)));
4893 PUSHs(space_join_names_mortal(sent->s_aliases));
4895 PUSHs(sv_2mortal(newSViv((IV)PerlSock_ntohs(sent->s_port))));
4897 PUSHs(sv_2mortal(newSViv((IV)(sent->s_port))));
4899 PUSHs(sv_2mortal(newSVpv(sent->s_proto, 0)));
4904 DIE(aTHX_ PL_no_sock_func, "getservent");
4910 #ifdef HAS_SETHOSTENT
4912 PerlSock_sethostent(TOPi);
4915 DIE(aTHX_ PL_no_sock_func, "sethostent");
4921 #ifdef HAS_SETNETENT
4923 PerlSock_setnetent(TOPi);
4926 DIE(aTHX_ PL_no_sock_func, "setnetent");
4932 #ifdef HAS_SETPROTOENT
4934 PerlSock_setprotoent(TOPi);
4937 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4943 #ifdef HAS_SETSERVENT
4945 PerlSock_setservent(TOPi);
4948 DIE(aTHX_ PL_no_sock_func, "setservent");
4954 #ifdef HAS_ENDHOSTENT
4956 PerlSock_endhostent();
4960 DIE(aTHX_ PL_no_sock_func, "endhostent");
4966 #ifdef HAS_ENDNETENT
4968 PerlSock_endnetent();
4972 DIE(aTHX_ PL_no_sock_func, "endnetent");
4978 #ifdef HAS_ENDPROTOENT
4980 PerlSock_endprotoent();
4984 DIE(aTHX_ PL_no_sock_func, "endprotoent");
4990 #ifdef HAS_ENDSERVENT
4992 PerlSock_endservent();
4996 DIE(aTHX_ PL_no_sock_func, "endservent");
5004 I32 which = PL_op->op_type;
5006 struct passwd *pwent = NULL;
5008 * We currently support only the SysV getsp* shadow password interface.
5009 * The interface is declared in <shadow.h> and often one needs to link
5010 * with -lsecurity or some such.
5011 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5014 * AIX getpwnam() is clever enough to return the encrypted password
5015 * only if the caller (euid?) is root.
5017 * There are at least three other shadow password APIs. Many platforms
5018 * seem to contain more than one interface for accessing the shadow
5019 * password databases, possibly for compatibility reasons.
5020 * The getsp*() is by far he simplest one, the other two interfaces
5021 * are much more complicated, but also very similar to each other.
5026 * struct pr_passwd *getprpw*();
5027 * The password is in
5028 * char getprpw*(...).ufld.fd_encrypt[]
5029 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5034 * struct es_passwd *getespw*();
5035 * The password is in
5036 * char *(getespw*(...).ufld.fd_encrypt)
5037 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5040 * struct userpw *getuserpw();
5041 * The password is in
5042 * char *(getuserpw(...)).spw_upw_passwd
5043 * (but the de facto standard getpwnam() should work okay)
5045 * Mention I_PROT here so that Configure probes for it.
5047 * In HP-UX for getprpw*() the manual page claims that one should include
5048 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5049 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5050 * and pp_sys.c already includes <shadow.h> if there is such.
5052 * Note that <sys/security.h> is already probed for, but currently
5053 * it is only included in special cases.
5055 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5056 * be preferred interface, even though also the getprpw*() interface
5057 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5058 * One also needs to call set_auth_parameters() in main() before
5059 * doing anything else, whether one is using getespw*() or getprpw*().
5061 * Note that accessing the shadow databases can be magnitudes
5062 * slower than accessing the standard databases.
5067 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5068 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5069 * the pw_comment is left uninitialized. */
5070 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5076 const char* const name = POPpbytex;
5077 pwent = getpwnam(name);
5083 pwent = getpwuid(uid);
5087 # ifdef HAS_GETPWENT
5089 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5090 if (pwent) pwent = getpwnam(pwent->pw_name);
5093 DIE(aTHX_ PL_no_func, "getpwent");
5099 if (GIMME != G_ARRAY) {
5100 PUSHs(sv = sv_newmortal());
5102 if (which == OP_GPWNAM)
5103 # if Uid_t_sign <= 0
5104 sv_setiv(sv, (IV)pwent->pw_uid);
5106 sv_setuv(sv, (UV)pwent->pw_uid);
5109 sv_setpv(sv, pwent->pw_name);
5115 PUSHs(sv_2mortal(newSVpv(pwent->pw_name, 0)));
5117 PUSHs(sv = sv_2mortal(newSViv(0)));
5118 /* If we have getspnam(), we try to dig up the shadow
5119 * password. If we are underprivileged, the shadow
5120 * interface will set the errno to EACCES or similar,
5121 * and return a null pointer. If this happens, we will
5122 * use the dummy password (usually "*" or "x") from the
5123 * standard password database.
5125 * In theory we could skip the shadow call completely
5126 * if euid != 0 but in practice we cannot know which
5127 * security measures are guarding the shadow databases
5128 * on a random platform.
5130 * Resist the urge to use additional shadow interfaces.
5131 * Divert the urge to writing an extension instead.
5134 /* Some AIX setups falsely(?) detect some getspnam(), which
5135 * has a different API than the Solaris/IRIX one. */
5136 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5138 const int saverrno = errno;
5139 const struct spwd * const spwent = getspnam(pwent->pw_name);
5140 /* Save and restore errno so that
5141 * underprivileged attempts seem
5142 * to have never made the unsccessful
5143 * attempt to retrieve the shadow password. */
5145 if (spwent && spwent->sp_pwdp)
5146 sv_setpv(sv, spwent->sp_pwdp);
5150 if (!SvPOK(sv)) /* Use the standard password, then. */
5151 sv_setpv(sv, pwent->pw_passwd);
5154 # ifndef INCOMPLETE_TAINTS
5155 /* passwd is tainted because user himself can diddle with it.
5156 * admittedly not much and in a very limited way, but nevertheless. */
5160 # if Uid_t_sign <= 0
5161 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_uid)));
5163 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_uid)));
5166 # if Uid_t_sign <= 0
5167 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_gid)));
5169 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_gid)));
5171 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5172 * because of the poor interface of the Perl getpw*(),
5173 * not because there's some standard/convention saying so.
5174 * A better interface would have been to return a hash,
5175 * but we are accursed by our history, alas. --jhi. */
5177 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_change)));
5180 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_quota)));
5183 PUSHs(sv_2mortal(newSVpv(pwent->pw_age, 0)));
5185 /* I think that you can never get this compiled, but just in case. */
5186 PUSHs(sv_mortalcopy(&PL_sv_no));
5191 /* pw_class and pw_comment are mutually exclusive--.
5192 * see the above note for pw_change, pw_quota, and pw_age. */
5194 PUSHs(sv_2mortal(newSVpv(pwent->pw_class, 0)));
5197 PUSHs(sv_2mortal(newSVpv(pwent->pw_comment, 0)));
5199 /* I think that you can never get this compiled, but just in case. */
5200 PUSHs(sv_mortalcopy(&PL_sv_no));
5205 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0)));
5207 PUSHs(sv_mortalcopy(&PL_sv_no));
5209 # ifndef INCOMPLETE_TAINTS
5210 /* pw_gecos is tainted because user himself can diddle with it. */
5214 PUSHs(sv_2mortal(newSVpv(pwent->pw_dir, 0)));
5216 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0)));
5217 # ifndef INCOMPLETE_TAINTS
5218 /* pw_shell is tainted because user himself can diddle with it. */
5223 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_expire)));
5228 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5234 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5239 DIE(aTHX_ PL_no_func, "setpwent");
5245 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5250 DIE(aTHX_ PL_no_func, "endpwent");
5258 const I32 which = PL_op->op_type;
5259 const struct group *grent;
5261 if (which == OP_GGRNAM) {
5262 const char* const name = POPpbytex;
5263 grent = (const struct group *)getgrnam(name);
5265 else if (which == OP_GGRGID) {
5266 const Gid_t gid = POPi;
5267 grent = (const struct group *)getgrgid(gid);
5271 grent = (struct group *)getgrent();
5273 DIE(aTHX_ PL_no_func, "getgrent");
5277 if (GIMME != G_ARRAY) {
5278 SV * const sv = sv_newmortal();
5282 if (which == OP_GGRNAM)
5283 sv_setiv(sv, (IV)grent->gr_gid);
5285 sv_setpv(sv, grent->gr_name);
5291 PUSHs(sv_2mortal(newSVpv(grent->gr_name, 0)));
5294 PUSHs(sv_2mortal(newSVpv(grent->gr_passwd, 0)));
5296 PUSHs(sv_mortalcopy(&PL_sv_no));
5299 PUSHs(sv_2mortal(newSViv((IV)grent->gr_gid)));
5301 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5302 /* In UNICOS/mk (_CRAYMPP) the multithreading
5303 * versions (getgrnam_r, getgrgid_r)
5304 * seem to return an illegal pointer
5305 * as the group members list, gr_mem.
5306 * getgrent() doesn't even have a _r version
5307 * but the gr_mem is poisonous anyway.
5308 * So yes, you cannot get the list of group
5309 * members if building multithreaded in UNICOS/mk. */
5310 PUSHs(space_join_names_mortal(grent->gr_mem));
5316 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5322 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5327 DIE(aTHX_ PL_no_func, "setgrent");
5333 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5338 DIE(aTHX_ PL_no_func, "endgrent");
5348 if (!(tmps = PerlProc_getlogin()))
5350 PUSHp(tmps, strlen(tmps));
5353 DIE(aTHX_ PL_no_func, "getlogin");
5357 /* Miscellaneous. */
5362 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
5363 register I32 items = SP - MARK;
5364 unsigned long a[20];
5369 while (++MARK <= SP) {
5370 if (SvTAINTED(*MARK)) {
5376 TAINT_PROPER("syscall");
5379 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5380 * or where sizeof(long) != sizeof(char*). But such machines will
5381 * not likely have syscall implemented either, so who cares?
5383 while (++MARK <= SP) {
5384 if (SvNIOK(*MARK) || !i)
5385 a[i++] = SvIV(*MARK);
5386 else if (*MARK == &PL_sv_undef)
5389 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5395 DIE(aTHX_ "Too many args to syscall");
5397 DIE(aTHX_ "Too few args to syscall");
5399 retval = syscall(a[0]);
5402 retval = syscall(a[0],a[1]);
5405 retval = syscall(a[0],a[1],a[2]);
5408 retval = syscall(a[0],a[1],a[2],a[3]);
5411 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5414 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5417 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5420 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5424 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5427 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5430 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5434 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5438 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5442 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5443 a[10],a[11],a[12],a[13]);
5445 #endif /* atarist */
5451 DIE(aTHX_ PL_no_func, "syscall");
5455 #ifdef FCNTL_EMULATE_FLOCK
5457 /* XXX Emulate flock() with fcntl().
5458 What's really needed is a good file locking module.
5462 fcntl_emulate_flock(int fd, int operation)
5466 switch (operation & ~LOCK_NB) {
5468 flock.l_type = F_RDLCK;
5471 flock.l_type = F_WRLCK;
5474 flock.l_type = F_UNLCK;
5480 flock.l_whence = SEEK_SET;
5481 flock.l_start = flock.l_len = (Off_t)0;
5483 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5486 #endif /* FCNTL_EMULATE_FLOCK */
5488 #ifdef LOCKF_EMULATE_FLOCK
5490 /* XXX Emulate flock() with lockf(). This is just to increase
5491 portability of scripts. The calls are not completely
5492 interchangeable. What's really needed is a good file
5496 /* The lockf() constants might have been defined in <unistd.h>.
5497 Unfortunately, <unistd.h> causes troubles on some mixed
5498 (BSD/POSIX) systems, such as SunOS 4.1.3.
5500 Further, the lockf() constants aren't POSIX, so they might not be
5501 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5502 just stick in the SVID values and be done with it. Sigh.
5506 # define F_ULOCK 0 /* Unlock a previously locked region */
5509 # define F_LOCK 1 /* Lock a region for exclusive use */
5512 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5515 # define F_TEST 3 /* Test a region for other processes locks */
5519 lockf_emulate_flock(int fd, int operation)
5522 const int save_errno = errno;
5525 /* flock locks entire file so for lockf we need to do the same */
5526 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5527 if (pos > 0) /* is seekable and needs to be repositioned */
5528 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5529 pos = -1; /* seek failed, so don't seek back afterwards */
5532 switch (operation) {
5534 /* LOCK_SH - get a shared lock */
5536 /* LOCK_EX - get an exclusive lock */
5538 i = lockf (fd, F_LOCK, 0);
5541 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5542 case LOCK_SH|LOCK_NB:
5543 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5544 case LOCK_EX|LOCK_NB:
5545 i = lockf (fd, F_TLOCK, 0);
5547 if ((errno == EAGAIN) || (errno == EACCES))
5548 errno = EWOULDBLOCK;
5551 /* LOCK_UN - unlock (non-blocking is a no-op) */
5553 case LOCK_UN|LOCK_NB:
5554 i = lockf (fd, F_ULOCK, 0);
5557 /* Default - can't decipher operation */
5564 if (pos > 0) /* need to restore position of the handle */
5565 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5570 #endif /* LOCKF_EMULATE_FLOCK */
5574 * c-indentation-style: bsd
5576 * indent-tabs-mode: t
5579 * ex: set ts=8 sts=4 sw=4 noet: