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);
2563 do_close(ngv, FALSE);
2564 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2565 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2566 IoTYPE(nstio) = IoTYPE_SOCKET;
2567 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2568 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2569 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2570 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2573 #if defined(HAS_FCNTL) && defined(F_SETFD)
2574 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2578 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2579 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2581 #ifdef __SCO_VERSION__
2582 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2585 PUSHp(namebuf, len);
2589 if (ckWARN(WARN_CLOSED))
2590 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2591 SETERRNO(EBADF,SS_IVCHAN);
2597 DIE(aTHX_ PL_no_sock_func, "accept");
2605 const int how = POPi;
2606 GV * const gv = (GV*)POPs;
2607 register IO * const io = GvIOn(gv);
2609 if (!io || !IoIFP(io))
2612 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2616 if (ckWARN(WARN_CLOSED))
2617 report_evil_fh(gv, io, PL_op->op_type);
2618 SETERRNO(EBADF,SS_IVCHAN);
2621 DIE(aTHX_ PL_no_sock_func, "shutdown");
2629 const int optype = PL_op->op_type;
2630 SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
2631 const unsigned int optname = (unsigned int) POPi;
2632 const unsigned int lvl = (unsigned int) POPi;
2633 GV * const gv = (GV*)POPs;
2634 register IO * const io = GvIOn(gv);
2638 if (!io || !IoIFP(io))
2641 fd = PerlIO_fileno(IoIFP(io));
2645 (void)SvPOK_only(sv);
2649 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2656 #if defined(__SYMBIAN32__)
2657 # define SETSOCKOPT_OPTION_VALUE_T void *
2659 # define SETSOCKOPT_OPTION_VALUE_T const char *
2661 /* XXX TODO: We need to have a proper type (a Configure probe,
2662 * etc.) for what the C headers think of the third argument of
2663 * setsockopt(), the option_value read-only buffer: is it
2664 * a "char *", or a "void *", const or not. Some compilers
2665 * don't take kindly to e.g. assuming that "char *" implicitly
2666 * promotes to a "void *", or to explicitly promoting/demoting
2667 * consts to non/vice versa. The "const void *" is the SUS
2668 * definition, but that does not fly everywhere for the above
2670 SETSOCKOPT_OPTION_VALUE_T buf;
2674 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2678 aint = (int)SvIV(sv);
2679 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
2682 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2691 if (ckWARN(WARN_CLOSED))
2692 report_evil_fh(gv, io, optype);
2693 SETERRNO(EBADF,SS_IVCHAN);
2698 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2706 const int optype = PL_op->op_type;
2707 GV * const gv = (GV*)POPs;
2708 register IO * const io = GvIOn(gv);
2713 if (!io || !IoIFP(io))
2716 sv = sv_2mortal(newSV(257));
2717 (void)SvPOK_only(sv);
2721 fd = PerlIO_fileno(IoIFP(io));
2723 case OP_GETSOCKNAME:
2724 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2727 case OP_GETPEERNAME:
2728 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2730 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2732 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";
2733 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2734 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2735 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
2736 sizeof(u_short) + sizeof(struct in_addr))) {
2743 #ifdef BOGUS_GETNAME_RETURN
2744 /* Interactive Unix, getpeername() and getsockname()
2745 does not return valid namelen */
2746 if (len == BOGUS_GETNAME_RETURN)
2747 len = sizeof(struct sockaddr);
2755 if (ckWARN(WARN_CLOSED))
2756 report_evil_fh(gv, io, optype);
2757 SETERRNO(EBADF,SS_IVCHAN);
2762 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2776 if (PL_op->op_flags & OPf_REF) {
2778 if (PL_op->op_type == OP_LSTAT) {
2779 if (gv != PL_defgv) {
2780 do_fstat_warning_check:
2781 if (ckWARN(WARN_IO))
2782 Perl_warner(aTHX_ packWARN(WARN_IO),
2783 "lstat() on filehandle %s", GvENAME(gv));
2784 } else if (PL_laststype != OP_LSTAT)
2785 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2789 if (gv != PL_defgv) {
2790 PL_laststype = OP_STAT;
2792 sv_setpvn(PL_statname, "", 0);
2794 IO* const io = GvIO(gv);
2798 PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2799 } else if (IoDIRP(io)) {
2802 PerlLIO_fstat(dirfd(IoDIRP(io)), &PL_statcache);
2804 DIE(aTHX_ PL_no_func, "dirfd");
2807 PL_laststatval = -1;
2813 if (PL_laststatval < 0) {
2814 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2815 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2820 SV* const sv = POPs;
2821 if (SvTYPE(sv) == SVt_PVGV) {
2825 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2827 if (PL_op->op_type == OP_LSTAT)
2828 goto do_fstat_warning_check;
2831 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2833 PL_laststype = PL_op->op_type;
2834 if (PL_op->op_type == OP_LSTAT)
2835 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2837 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2838 if (PL_laststatval < 0) {
2839 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2840 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2846 if (gimme != G_ARRAY) {
2847 if (gimme != G_VOID)
2848 XPUSHs(boolSV(max));
2854 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2855 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2856 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2857 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2858 #if Uid_t_size > IVSIZE
2859 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2861 # if Uid_t_sign <= 0
2862 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2864 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2867 #if Gid_t_size > IVSIZE
2868 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2870 # if Gid_t_sign <= 0
2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2873 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2876 #ifdef USE_STAT_RDEV
2877 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2879 PUSHs(sv_2mortal(newSVpvs("")));
2881 #if Off_t_size > IVSIZE
2882 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2884 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2887 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2888 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2889 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2891 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2892 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2893 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2895 #ifdef USE_STAT_BLOCKS
2896 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2897 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2899 PUSHs(sv_2mortal(newSVpvs("")));
2900 PUSHs(sv_2mortal(newSVpvs("")));
2906 /* This macro is used by the stacked filetest operators :
2907 * if the previous filetest failed, short-circuit and pass its value.
2908 * Else, discard it from the stack and continue. --rgs
2910 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2911 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2912 else { (void)POPs; PUTBACK; } \
2919 /* Not const, because things tweak this below. Not bool, because there's
2920 no guarantee that OPp_FT_ACCESS is <= CHAR_MAX */
2921 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2922 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
2923 /* Giving some sort of initial value silences compilers. */
2925 int access_mode = R_OK;
2927 int access_mode = 0;
2930 /* access_mode is never used, but leaving use_access in makes the
2931 conditional compiling below much clearer. */
2934 int stat_mode = S_IRUSR;
2936 bool effective = FALSE;
2939 STACKED_FTEST_CHECK;
2941 switch (PL_op->op_type) {
2943 #if !(defined(HAS_ACCESS) && defined(R_OK))
2949 #if defined(HAS_ACCESS) && defined(W_OK)
2954 stat_mode = S_IWUSR;
2958 #if defined(HAS_ACCESS) && defined(X_OK)
2963 stat_mode = S_IXUSR;
2967 #ifdef PERL_EFF_ACCESS
2970 stat_mode = S_IWUSR;
2974 #ifndef PERL_EFF_ACCESS
2982 #ifdef PERL_EFF_ACCESS
2987 stat_mode = S_IXUSR;
2993 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2994 const char *const name = POPpx;
2996 # ifdef PERL_EFF_ACCESS
2997 result = PERL_EFF_ACCESS(name, access_mode);
2999 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
3005 result = access(name, access_mode);
3007 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
3022 if (cando(stat_mode, effective, &PL_statcache))
3031 const int op_type = PL_op->op_type;
3033 STACKED_FTEST_CHECK;
3038 if (op_type == OP_FTIS)
3041 /* You can't dTARGET inside OP_FTIS, because you'll get
3042 "panic: pad_sv po" - the op is not flagged to have a target. */
3046 #if Off_t_size > IVSIZE
3047 PUSHn(PL_statcache.st_size);
3049 PUSHi(PL_statcache.st_size);
3053 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3056 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3059 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3072 /* I believe that all these three are likely to be defined on most every
3073 system these days. */
3075 if(PL_op->op_type == OP_FTSUID)
3079 if(PL_op->op_type == OP_FTSGID)
3083 if(PL_op->op_type == OP_FTSVTX)
3087 STACKED_FTEST_CHECK;
3092 switch (PL_op->op_type) {
3094 if (PL_statcache.st_uid == PL_uid)
3098 if (PL_statcache.st_uid == PL_euid)
3102 if (PL_statcache.st_size == 0)
3106 if (S_ISSOCK(PL_statcache.st_mode))
3110 if (S_ISCHR(PL_statcache.st_mode))
3114 if (S_ISBLK(PL_statcache.st_mode))
3118 if (S_ISREG(PL_statcache.st_mode))
3122 if (S_ISDIR(PL_statcache.st_mode))
3126 if (S_ISFIFO(PL_statcache.st_mode))
3131 if (PL_statcache.st_mode & S_ISUID)
3137 if (PL_statcache.st_mode & S_ISGID)
3143 if (PL_statcache.st_mode & S_ISVTX)
3154 I32 result = my_lstat();
3158 if (S_ISLNK(PL_statcache.st_mode))
3171 STACKED_FTEST_CHECK;
3173 if (PL_op->op_flags & OPf_REF)
3175 else if (isGV(TOPs))
3177 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3178 gv = (GV*)SvRV(POPs);
3180 gv = gv_fetchsv(tmpsv = POPs, 0, SVt_PVIO);
3182 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3183 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3184 else if (tmpsv && SvOK(tmpsv)) {
3185 const char *tmps = SvPV_nolen_const(tmpsv);
3193 if (PerlLIO_isatty(fd))
3198 #if defined(atarist) /* this will work with atariST. Configure will
3199 make guesses for other systems. */
3200 # define FILE_base(f) ((f)->_base)
3201 # define FILE_ptr(f) ((f)->_ptr)
3202 # define FILE_cnt(f) ((f)->_cnt)
3203 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3214 register STDCHAR *s;
3220 STACKED_FTEST_CHECK;
3222 if (PL_op->op_flags & OPf_REF)
3224 else if (isGV(TOPs))
3226 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3227 gv = (GV*)SvRV(POPs);
3233 if (gv == PL_defgv) {
3235 io = GvIO(PL_statgv);
3238 goto really_filename;
3243 PL_laststatval = -1;
3244 sv_setpvn(PL_statname, "", 0);
3245 io = GvIO(PL_statgv);
3247 if (io && IoIFP(io)) {
3248 if (! PerlIO_has_base(IoIFP(io)))
3249 DIE(aTHX_ "-T and -B not implemented on filehandles");
3250 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3251 if (PL_laststatval < 0)
3253 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3254 if (PL_op->op_type == OP_FTTEXT)
3259 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3260 i = PerlIO_getc(IoIFP(io));
3262 (void)PerlIO_ungetc(IoIFP(io),i);
3264 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3266 len = PerlIO_get_bufsiz(IoIFP(io));
3267 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3268 /* sfio can have large buffers - limit to 512 */
3273 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3275 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3277 SETERRNO(EBADF,RMS_IFI);
3285 PL_laststype = OP_STAT;
3286 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3287 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3288 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3290 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3293 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3294 if (PL_laststatval < 0) {
3295 (void)PerlIO_close(fp);
3298 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL);
3299 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3300 (void)PerlIO_close(fp);
3302 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3303 RETPUSHNO; /* special case NFS directories */
3304 RETPUSHYES; /* null file is anything */
3309 /* now scan s to look for textiness */
3310 /* XXX ASCII dependent code */
3312 #if defined(DOSISH) || defined(USEMYBINMODE)
3313 /* ignore trailing ^Z on short files */
3314 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3318 for (i = 0; i < len; i++, s++) {
3319 if (!*s) { /* null never allowed in text */
3324 else if (!(isPRINT(*s) || isSPACE(*s)))
3327 else if (*s & 128) {
3329 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3332 /* utf8 characters don't count as odd */
3333 if (UTF8_IS_START(*s)) {
3334 int ulen = UTF8SKIP(s);
3335 if (ulen < len - i) {
3337 for (j = 1; j < ulen; j++) {
3338 if (!UTF8_IS_CONTINUATION(s[j]))
3341 --ulen; /* loop does extra increment */
3351 *s != '\n' && *s != '\r' && *s != '\b' &&
3352 *s != '\t' && *s != '\f' && *s != 27)
3357 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3368 const char *tmps = NULL;
3372 SV * const sv = POPs;
3373 if (PL_op->op_flags & OPf_SPECIAL) {
3374 gv = gv_fetchsv(sv, 0, SVt_PVIO);
3376 else if (SvTYPE(sv) == SVt_PVGV) {
3379 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3383 tmps = SvPVx_nolen_const(sv);
3387 if( !gv && (!tmps || !*tmps) ) {
3388 HV * const table = GvHVn(PL_envgv);
3391 if ( (svp = hv_fetchs(table, "HOME", FALSE))
3392 || (svp = hv_fetchs(table, "LOGDIR", FALSE))
3394 || (svp = hv_fetchs(table, "SYS$LOGIN", FALSE))
3399 deprecate("chdir('') or chdir(undef) as chdir()");
3400 tmps = SvPV_nolen_const(*svp);
3404 TAINT_PROPER("chdir");
3409 TAINT_PROPER("chdir");
3412 IO* const io = GvIO(gv);
3415 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3417 else if (IoDIRP(io)) {
3419 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3421 DIE(aTHX_ PL_no_func, "dirfd");
3425 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
3426 report_evil_fh(gv, io, PL_op->op_type);
3427 SETERRNO(EBADF, RMS_IFI);
3432 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
3433 report_evil_fh(gv, io, PL_op->op_type);
3434 SETERRNO(EBADF,RMS_IFI);
3438 DIE(aTHX_ PL_no_func, "fchdir");
3442 PUSHi( PerlDir_chdir(tmps) >= 0 );
3444 /* Clear the DEFAULT element of ENV so we'll get the new value
3446 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3453 dVAR; dSP; dMARK; dTARGET;
3454 const I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3465 char * const tmps = POPpx;
3466 TAINT_PROPER("chroot");
3467 PUSHi( chroot(tmps) >= 0 );
3470 DIE(aTHX_ PL_no_func, "chroot");
3478 const char * const tmps2 = POPpconstx;
3479 const char * const tmps = SvPV_nolen_const(TOPs);
3480 TAINT_PROPER("rename");
3482 anum = PerlLIO_rename(tmps, tmps2);
3484 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3485 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3488 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3489 (void)UNLINK(tmps2);
3490 if (!(anum = link(tmps, tmps2)))
3491 anum = UNLINK(tmps);
3499 #if defined(HAS_LINK) || defined(HAS_SYMLINK)
3503 const int op_type = PL_op->op_type;
3507 if (op_type == OP_LINK)
3508 DIE(aTHX_ PL_no_func, "link");
3510 # ifndef HAS_SYMLINK
3511 if (op_type == OP_SYMLINK)
3512 DIE(aTHX_ PL_no_func, "symlink");
3516 const char * const tmps2 = POPpconstx;
3517 const char * const tmps = SvPV_nolen_const(TOPs);
3518 TAINT_PROPER(PL_op_desc[op_type]);
3520 # if defined(HAS_LINK)
3521 # if defined(HAS_SYMLINK)
3522 /* Both present - need to choose which. */
3523 (op_type == OP_LINK) ?
3524 PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2);
3526 /* Only have link, so calls to pp_symlink will have DIE()d above. */
3527 PerlLIO_link(tmps, tmps2);
3530 # if defined(HAS_SYMLINK)
3531 /* Only have symlink, so calls to pp_link will have DIE()d above. */
3532 symlink(tmps, tmps2);
3537 SETi( result >= 0 );
3544 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
3555 char buf[MAXPATHLEN];
3558 #ifndef INCOMPLETE_TAINTS
3562 len = readlink(tmps, buf, sizeof(buf) - 1);
3570 RETSETUNDEF; /* just pretend it's a normal file */
3574 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3576 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3578 char * const save_filename = filename;
3584 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3585 strcpy(cmdline, cmd);
3586 strcat(cmdline, " ");
3587 for (s = cmdline + strlen(cmdline); *filename; ) {
3592 myfp = PerlProc_popen(cmdline, "r");
3596 SV * const tmpsv = sv_newmortal();
3597 /* Need to save/restore 'PL_rs' ?? */
3598 s = sv_gets(tmpsv, myfp, 0);
3599 (void)PerlProc_pclose(myfp);
3603 #ifdef HAS_SYS_ERRLIST
3608 /* you don't see this */
3609 const char * const errmsg =
3610 #ifdef HAS_SYS_ERRLIST
3618 if (instr(s, errmsg)) {
3625 #define EACCES EPERM
3627 if (instr(s, "cannot make"))
3628 SETERRNO(EEXIST,RMS_FEX);
3629 else if (instr(s, "existing file"))
3630 SETERRNO(EEXIST,RMS_FEX);
3631 else if (instr(s, "ile exists"))
3632 SETERRNO(EEXIST,RMS_FEX);
3633 else if (instr(s, "non-exist"))
3634 SETERRNO(ENOENT,RMS_FNF);
3635 else if (instr(s, "does not exist"))
3636 SETERRNO(ENOENT,RMS_FNF);
3637 else if (instr(s, "not empty"))
3638 SETERRNO(EBUSY,SS_DEVOFFLINE);
3639 else if (instr(s, "cannot access"))
3640 SETERRNO(EACCES,RMS_PRV);
3642 SETERRNO(EPERM,RMS_PRV);
3645 else { /* some mkdirs return no failure indication */
3646 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3647 if (PL_op->op_type == OP_RMDIR)
3652 SETERRNO(EACCES,RMS_PRV); /* a guess */
3661 /* This macro removes trailing slashes from a directory name.
3662 * Different operating and file systems take differently to
3663 * trailing slashes. According to POSIX 1003.1 1996 Edition
3664 * any number of trailing slashes should be allowed.
3665 * Thusly we snip them away so that even non-conforming
3666 * systems are happy.
3667 * We should probably do this "filtering" for all
3668 * the functions that expect (potentially) directory names:
3669 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3670 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3672 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3673 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3676 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3677 (tmps) = savepvn((tmps), (len)); \
3687 const int mode = (MAXARG > 1) ? POPi : 0777;
3689 TRIMSLASHES(tmps,len,copy);
3691 TAINT_PROPER("mkdir");
3693 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3697 SETi( dooneliner("mkdir", tmps) );
3698 oldumask = PerlLIO_umask(0);
3699 PerlLIO_umask(oldumask);
3700 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3715 TRIMSLASHES(tmps,len,copy);
3716 TAINT_PROPER("rmdir");
3718 SETi( PerlDir_rmdir(tmps) >= 0 );
3720 SETi( dooneliner("rmdir", tmps) );
3727 /* Directory calls. */
3731 #if defined(Direntry_t) && defined(HAS_READDIR)
3733 const char * const dirname = POPpconstx;
3734 GV * const gv = (GV*)POPs;
3735 register IO * const io = GvIOn(gv);
3741 PerlDir_close(IoDIRP(io));
3742 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3748 SETERRNO(EBADF,RMS_DIR);
3751 DIE(aTHX_ PL_no_dir_func, "opendir");
3757 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3758 DIE(aTHX_ PL_no_dir_func, "readdir");
3760 #if !defined(I_DIRENT) && !defined(VMS)
3761 Direntry_t *readdir (DIR *);
3767 const I32 gimme = GIMME;
3768 GV * const gv = (GV *)POPs;
3769 register const Direntry_t *dp;
3770 register IO * const io = GvIOn(gv);
3772 if (!io || !IoDIRP(io)) {
3773 if(ckWARN(WARN_IO)) {
3774 Perl_warner(aTHX_ packWARN(WARN_IO),
3775 "readdir() attempted on invalid dirhandle %s", GvENAME(gv));
3781 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3785 sv = newSVpvn(dp->d_name, dp->d_namlen);
3787 sv = newSVpv(dp->d_name, 0);
3789 #ifndef INCOMPLETE_TAINTS
3790 if (!(IoFLAGS(io) & IOf_UNTAINT))
3793 XPUSHs(sv_2mortal(sv));
3794 } while (gimme == G_ARRAY);
3796 if (!dp && gimme != G_ARRAY)
3803 SETERRNO(EBADF,RMS_ISI);
3804 if (GIMME == G_ARRAY)
3813 #if defined(HAS_TELLDIR) || defined(telldir)
3815 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3816 /* XXX netbsd still seemed to.
3817 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3818 --JHI 1999-Feb-02 */
3819 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3820 long telldir (DIR *);
3822 GV * const gv = (GV*)POPs;
3823 register IO * const io = GvIOn(gv);
3825 if (!io || !IoDIRP(io)) {
3826 if(ckWARN(WARN_IO)) {
3827 Perl_warner(aTHX_ packWARN(WARN_IO),
3828 "telldir() attempted on invalid dirhandle %s", GvENAME(gv));
3833 PUSHi( PerlDir_tell(IoDIRP(io)) );
3837 SETERRNO(EBADF,RMS_ISI);
3840 DIE(aTHX_ PL_no_dir_func, "telldir");
3846 #if defined(HAS_SEEKDIR) || defined(seekdir)
3848 const long along = POPl;
3849 GV * const gv = (GV*)POPs;
3850 register IO * const io = GvIOn(gv);
3852 if (!io || !IoDIRP(io)) {
3853 if(ckWARN(WARN_IO)) {
3854 Perl_warner(aTHX_ packWARN(WARN_IO),
3855 "seekdir() attempted on invalid dirhandle %s", GvENAME(gv));
3859 (void)PerlDir_seek(IoDIRP(io), along);
3864 SETERRNO(EBADF,RMS_ISI);
3867 DIE(aTHX_ PL_no_dir_func, "seekdir");
3873 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3875 GV * const gv = (GV*)POPs;
3876 register IO * const io = GvIOn(gv);
3878 if (!io || !IoDIRP(io)) {
3879 if(ckWARN(WARN_IO)) {
3880 Perl_warner(aTHX_ packWARN(WARN_IO),
3881 "rewinddir() attempted on invalid dirhandle %s", GvENAME(gv));
3885 (void)PerlDir_rewind(IoDIRP(io));
3889 SETERRNO(EBADF,RMS_ISI);
3892 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3898 #if defined(Direntry_t) && defined(HAS_READDIR)
3900 GV * const gv = (GV*)POPs;
3901 register IO * const io = GvIOn(gv);
3903 if (!io || !IoDIRP(io)) {
3904 if(ckWARN(WARN_IO)) {
3905 Perl_warner(aTHX_ packWARN(WARN_IO),
3906 "closedir() attempted on invalid dirhandle %s", GvENAME(gv));
3910 #ifdef VOID_CLOSEDIR
3911 PerlDir_close(IoDIRP(io));
3913 if (PerlDir_close(IoDIRP(io)) < 0) {
3914 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3923 SETERRNO(EBADF,RMS_IFI);
3926 DIE(aTHX_ PL_no_dir_func, "closedir");
3930 /* Process control. */
3939 PERL_FLUSHALL_FOR_CHILD;
3940 childpid = PerlProc_fork();
3944 GV * const tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV);
3946 SvREADONLY_off(GvSV(tmpgv));
3947 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3948 SvREADONLY_on(GvSV(tmpgv));
3950 #ifdef THREADS_HAVE_PIDS
3951 PL_ppid = (IV)getppid();
3953 #ifdef PERL_USES_PL_PIDSTATUS
3954 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3960 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3965 PERL_FLUSHALL_FOR_CHILD;
3966 childpid = PerlProc_fork();
3972 DIE(aTHX_ PL_no_func, "fork");
3979 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3984 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
3985 childpid = wait4pid(-1, &argflags, 0);
3987 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
3992 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3993 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3994 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
3996 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
4001 DIE(aTHX_ PL_no_func, "wait");
4007 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4009 const int optype = POPi;
4010 const Pid_t pid = TOPi;
4014 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4015 result = wait4pid(pid, &argflags, optype);
4017 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4022 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4023 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4024 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
4026 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
4031 DIE(aTHX_ PL_no_func, "waitpid");
4037 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
4043 while (++MARK <= SP) {
4044 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4049 TAINT_PROPER("system");
4051 PERL_FLUSHALL_FOR_CHILD;
4052 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4058 if (PerlProc_pipe(pp) >= 0)
4060 while ((childpid = PerlProc_fork()) == -1) {
4061 if (errno != EAGAIN) {
4066 PerlLIO_close(pp[0]);
4067 PerlLIO_close(pp[1]);
4074 Sigsave_t ihand,qhand; /* place to save signals during system() */
4078 PerlLIO_close(pp[1]);
4080 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4081 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
4084 result = wait4pid(childpid, &status, 0);
4085 } while (result == -1 && errno == EINTR);
4087 (void)rsignal_restore(SIGINT, &ihand);
4088 (void)rsignal_restore(SIGQUIT, &qhand);
4090 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
4091 do_execfree(); /* free any memory child malloced on fork */
4098 while (n < sizeof(int)) {
4099 n1 = PerlLIO_read(pp[0],
4100 (void*)(((char*)&errkid)+n),
4106 PerlLIO_close(pp[0]);
4107 if (n) { /* Error */
4108 if (n != sizeof(int))
4109 DIE(aTHX_ "panic: kid popen errno read");
4110 errno = errkid; /* Propagate errno from kid */
4111 STATUS_NATIVE_CHILD_SET(-1);
4114 XPUSHi(STATUS_CURRENT);
4118 PerlLIO_close(pp[0]);
4119 #if defined(HAS_FCNTL) && defined(F_SETFD)
4120 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4123 if (PL_op->op_flags & OPf_STACKED) {
4124 SV * const really = *++MARK;
4125 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4127 else if (SP - MARK != 1)
4128 value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes);
4130 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4134 #else /* ! FORK or VMS or OS/2 */
4137 if (PL_op->op_flags & OPf_STACKED) {
4138 SV * const really = *++MARK;
4139 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4140 value = (I32)do_aspawn(really, MARK, SP);
4142 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4145 else if (SP - MARK != 1) {
4146 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4147 value = (I32)do_aspawn(NULL, MARK, SP);
4149 value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP);
4153 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4155 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4157 STATUS_NATIVE_CHILD_SET(value);
4160 XPUSHi(result ? value : STATUS_CURRENT);
4161 #endif /* !FORK or VMS */
4167 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
4172 while (++MARK <= SP) {
4173 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4178 TAINT_PROPER("exec");
4180 PERL_FLUSHALL_FOR_CHILD;
4181 if (PL_op->op_flags & OPf_STACKED) {
4182 SV * const really = *++MARK;
4183 value = (I32)do_aexec(really, MARK, SP);
4185 else if (SP - MARK != 1)
4187 value = (I32)vms_do_aexec(NULL, MARK, SP);
4191 (void ) do_aspawn(NULL, MARK, SP);
4195 value = (I32)do_aexec(NULL, MARK, SP);
4200 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4203 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4206 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4220 # ifdef THREADS_HAVE_PIDS
4221 if (PL_ppid != 1 && getppid() == 1)
4222 /* maybe the parent process has died. Refresh ppid cache */
4226 XPUSHi( getppid() );
4230 DIE(aTHX_ PL_no_func, "getppid");
4239 const Pid_t pid = (MAXARG < 1) ? 0 : SvIVx(POPs);
4242 pgrp = (I32)BSD_GETPGRP(pid);
4244 if (pid != 0 && pid != PerlProc_getpid())
4245 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4251 DIE(aTHX_ PL_no_func, "getpgrp()");
4270 TAINT_PROPER("setpgrp");
4272 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4274 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4275 || (pid != 0 && pid != PerlProc_getpid()))
4277 DIE(aTHX_ "setpgrp can't take arguments");
4279 SETi( setpgrp() >= 0 );
4280 #endif /* USE_BSDPGRP */
4283 DIE(aTHX_ PL_no_func, "setpgrp()");
4289 #ifdef HAS_GETPRIORITY
4291 const int who = POPi;
4292 const int which = TOPi;
4293 SETi( getpriority(which, who) );
4296 DIE(aTHX_ PL_no_func, "getpriority()");
4302 #ifdef HAS_SETPRIORITY
4304 const int niceval = POPi;
4305 const int who = POPi;
4306 const int which = TOPi;
4307 TAINT_PROPER("setpriority");
4308 SETi( setpriority(which, who, niceval) >= 0 );
4311 DIE(aTHX_ PL_no_func, "setpriority()");
4321 XPUSHn( time(NULL) );
4323 XPUSHi( time(NULL) );
4335 (void)PerlProc_times(&PL_timesbuf);
4337 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4338 /* struct tms, though same data */
4342 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4343 if (GIMME == G_ARRAY) {
4344 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4345 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4346 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4352 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4354 if (GIMME == G_ARRAY) {
4355 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4356 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4357 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4361 DIE(aTHX_ "times not implemented");
4363 #endif /* HAS_TIMES */
4366 #ifdef LOCALTIME_EDGECASE_BROKEN
4367 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4372 /* No workarounds in the valid range */
4373 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4374 return (localtime (tp));
4376 /* This edge case is to workaround the undefined behaviour, where the
4377 * TIMEZONE makes the time go beyond the defined range.
4378 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4379 * If there is a negative offset in TZ, like MET-1METDST, some broken
4380 * implementations of localtime () (like AIX 5.2) barf with bogus
4382 * 0x7fffffff gmtime 2038-01-19 03:14:07
4383 * 0x7fffffff localtime 1901-12-13 21:45:51
4384 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4385 * 0x3c19137f gmtime 2001-12-13 20:45:51
4386 * 0x3c19137f localtime 2001-12-13 21:45:51
4387 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4388 * Given that legal timezones are typically between GMT-12 and GMT+12
4389 * we turn back the clock 23 hours before calling the localtime
4390 * function, and add those to the return value. This will never cause
4391 * day wrapping problems, since the edge case is Tue Jan *19*
4393 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4396 if (P->tm_hour >= 24) {
4398 P->tm_mday++; /* 18 -> 19 */
4399 P->tm_wday++; /* Mon -> Tue */
4400 P->tm_yday++; /* 18 -> 19 */
4403 } /* S_my_localtime */
4411 const struct tm *tmbuf;
4412 static const char * const dayname[] =
4413 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4414 static const char * const monname[] =
4415 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4416 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4422 when = (Time_t)SvNVx(POPs);
4424 when = (Time_t)SvIVx(POPs);
4427 if (PL_op->op_type == OP_LOCALTIME)
4428 #ifdef LOCALTIME_EDGECASE_BROKEN
4429 tmbuf = S_my_localtime(aTHX_ &when);
4431 tmbuf = localtime(&when);
4434 tmbuf = gmtime(&when);
4436 if (GIMME != G_ARRAY) {
4442 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4443 dayname[tmbuf->tm_wday],
4444 monname[tmbuf->tm_mon],
4449 tmbuf->tm_year + 1900);
4450 PUSHs(sv_2mortal(tsv));
4455 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4456 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4457 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4458 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4459 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4460 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4461 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4462 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4463 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4474 anum = alarm((unsigned int)anum);
4481 DIE(aTHX_ PL_no_func, "alarm");
4492 (void)time(&lasttime);
4497 PerlProc_sleep((unsigned int)duration);
4500 XPUSHi(when - lasttime);
4504 /* Shared memory. */
4505 /* Merged with some message passing. */
4509 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4510 dVAR; dSP; dMARK; dTARGET;
4511 const int op_type = PL_op->op_type;
4516 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4519 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4522 value = (I32)(do_semop(MARK, SP) >= 0);
4525 value = (I32)(do_shmio(op_type, MARK, SP) >= 0);
4541 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4542 dVAR; dSP; dMARK; dTARGET;
4543 const int anum = do_ipcget(PL_op->op_type, MARK, SP);
4550 DIE(aTHX_ "System V IPC is not implemented on this machine");
4556 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4557 dVAR; dSP; dMARK; dTARGET;
4558 const int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4566 PUSHp(zero_but_true, ZBTLEN);
4574 /* I can't const this further without getting warnings about the types of
4575 various arrays passed in from structures. */
4577 S_space_join_names_mortal(pTHX_ char *const *array)
4581 if (array && *array) {
4582 target = sv_2mortal(newSVpvs(""));
4584 sv_catpv(target, *array);
4587 sv_catpvs(target, " ");
4590 target = sv_mortalcopy(&PL_sv_no);
4595 /* Get system info. */
4599 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4601 I32 which = PL_op->op_type;
4602 register char **elem;
4604 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4605 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4606 struct hostent *gethostbyname(Netdb_name_t);
4607 struct hostent *gethostent(void);
4609 struct hostent *hent;
4613 if (which == OP_GHBYNAME) {
4614 #ifdef HAS_GETHOSTBYNAME
4615 const char* const name = POPpbytex;
4616 hent = PerlSock_gethostbyname(name);
4618 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4621 else if (which == OP_GHBYADDR) {
4622 #ifdef HAS_GETHOSTBYADDR
4623 const int addrtype = POPi;
4624 SV * const addrsv = POPs;
4626 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4628 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4630 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4634 #ifdef HAS_GETHOSTENT
4635 hent = PerlSock_gethostent();
4637 DIE(aTHX_ PL_no_sock_func, "gethostent");
4640 #ifdef HOST_NOT_FOUND
4642 #ifdef USE_REENTRANT_API
4643 # ifdef USE_GETHOSTENT_ERRNO
4644 h_errno = PL_reentrant_buffer->_gethostent_errno;
4647 STATUS_UNIX_SET(h_errno);
4651 if (GIMME != G_ARRAY) {
4652 PUSHs(sv = sv_newmortal());
4654 if (which == OP_GHBYNAME) {
4656 sv_setpvn(sv, hent->h_addr, hent->h_length);
4659 sv_setpv(sv, (char*)hent->h_name);
4665 PUSHs(sv_2mortal(newSVpv((char*)hent->h_name, 0)));
4666 PUSHs(space_join_names_mortal(hent->h_aliases));
4667 PUSHs(sv_2mortal(newSViv((IV)hent->h_addrtype)));
4668 len = hent->h_length;
4669 PUSHs(sv_2mortal(newSViv((IV)len)));
4671 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4672 XPUSHs(sv_2mortal(newSVpvn(*elem, len)));
4676 PUSHs(newSVpvn(hent->h_addr, len));
4678 PUSHs(sv_mortalcopy(&PL_sv_no));
4683 DIE(aTHX_ PL_no_sock_func, "gethostent");
4689 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4691 I32 which = PL_op->op_type;
4693 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4694 struct netent *getnetbyaddr(Netdb_net_t, int);
4695 struct netent *getnetbyname(Netdb_name_t);
4696 struct netent *getnetent(void);
4698 struct netent *nent;
4700 if (which == OP_GNBYNAME){
4701 #ifdef HAS_GETNETBYNAME
4702 const char * const name = POPpbytex;
4703 nent = PerlSock_getnetbyname(name);
4705 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4708 else if (which == OP_GNBYADDR) {
4709 #ifdef HAS_GETNETBYADDR
4710 const int addrtype = POPi;
4711 const Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4712 nent = PerlSock_getnetbyaddr(addr, addrtype);
4714 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4718 #ifdef HAS_GETNETENT
4719 nent = PerlSock_getnetent();
4721 DIE(aTHX_ PL_no_sock_func, "getnetent");
4724 #ifdef HOST_NOT_FOUND
4726 #ifdef USE_REENTRANT_API
4727 # ifdef USE_GETNETENT_ERRNO
4728 h_errno = PL_reentrant_buffer->_getnetent_errno;
4731 STATUS_UNIX_SET(h_errno);
4736 if (GIMME != G_ARRAY) {
4737 PUSHs(sv = sv_newmortal());
4739 if (which == OP_GNBYNAME)
4740 sv_setiv(sv, (IV)nent->n_net);
4742 sv_setpv(sv, nent->n_name);
4748 PUSHs(sv_2mortal(newSVpv(nent->n_name, 0)));
4749 PUSHs(space_join_names_mortal(nent->n_aliases));
4750 PUSHs(sv_2mortal(newSViv((IV)nent->n_addrtype)));
4751 PUSHs(sv_2mortal(newSViv((IV)nent->n_net)));
4756 DIE(aTHX_ PL_no_sock_func, "getnetent");
4762 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4764 I32 which = PL_op->op_type;
4766 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4767 struct protoent *getprotobyname(Netdb_name_t);
4768 struct protoent *getprotobynumber(int);
4769 struct protoent *getprotoent(void);
4771 struct protoent *pent;
4773 if (which == OP_GPBYNAME) {
4774 #ifdef HAS_GETPROTOBYNAME
4775 const char* const name = POPpbytex;
4776 pent = PerlSock_getprotobyname(name);
4778 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4781 else if (which == OP_GPBYNUMBER) {
4782 #ifdef HAS_GETPROTOBYNUMBER
4783 const int number = POPi;
4784 pent = PerlSock_getprotobynumber(number);
4786 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4790 #ifdef HAS_GETPROTOENT
4791 pent = PerlSock_getprotoent();
4793 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4797 if (GIMME != G_ARRAY) {
4798 PUSHs(sv = sv_newmortal());
4800 if (which == OP_GPBYNAME)
4801 sv_setiv(sv, (IV)pent->p_proto);
4803 sv_setpv(sv, pent->p_name);
4809 PUSHs(sv_2mortal(newSVpv(pent->p_name, 0)));
4810 PUSHs(space_join_names_mortal(pent->p_aliases));
4811 PUSHs(sv_2mortal(newSViv((IV)pent->p_proto)));
4816 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4822 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4824 I32 which = PL_op->op_type;
4826 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4827 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4828 struct servent *getservbyport(int, Netdb_name_t);
4829 struct servent *getservent(void);
4831 struct servent *sent;
4833 if (which == OP_GSBYNAME) {
4834 #ifdef HAS_GETSERVBYNAME
4835 const char * const proto = POPpbytex;
4836 const char * const name = POPpbytex;
4837 sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto);
4839 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4842 else if (which == OP_GSBYPORT) {
4843 #ifdef HAS_GETSERVBYPORT
4844 const char * const proto = POPpbytex;
4845 unsigned short port = (unsigned short)POPu;
4847 port = PerlSock_htons(port);
4849 sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto);
4851 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4855 #ifdef HAS_GETSERVENT
4856 sent = PerlSock_getservent();
4858 DIE(aTHX_ PL_no_sock_func, "getservent");
4862 if (GIMME != G_ARRAY) {
4863 PUSHs(sv = sv_newmortal());
4865 if (which == OP_GSBYNAME) {
4867 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4869 sv_setiv(sv, (IV)(sent->s_port));
4873 sv_setpv(sv, sent->s_name);
4879 PUSHs(sv_2mortal(newSVpv(sent->s_name, 0)));
4880 PUSHs(space_join_names_mortal(sent->s_aliases));
4882 PUSHs(sv_2mortal(newSViv((IV)PerlSock_ntohs(sent->s_port))));
4884 PUSHs(sv_2mortal(newSViv((IV)(sent->s_port))));
4886 PUSHs(sv_2mortal(newSVpv(sent->s_proto, 0)));
4891 DIE(aTHX_ PL_no_sock_func, "getservent");
4897 #ifdef HAS_SETHOSTENT
4899 PerlSock_sethostent(TOPi);
4902 DIE(aTHX_ PL_no_sock_func, "sethostent");
4908 #ifdef HAS_SETNETENT
4910 PerlSock_setnetent(TOPi);
4913 DIE(aTHX_ PL_no_sock_func, "setnetent");
4919 #ifdef HAS_SETPROTOENT
4921 PerlSock_setprotoent(TOPi);
4924 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4930 #ifdef HAS_SETSERVENT
4932 PerlSock_setservent(TOPi);
4935 DIE(aTHX_ PL_no_sock_func, "setservent");
4941 #ifdef HAS_ENDHOSTENT
4943 PerlSock_endhostent();
4947 DIE(aTHX_ PL_no_sock_func, "endhostent");
4953 #ifdef HAS_ENDNETENT
4955 PerlSock_endnetent();
4959 DIE(aTHX_ PL_no_sock_func, "endnetent");
4965 #ifdef HAS_ENDPROTOENT
4967 PerlSock_endprotoent();
4971 DIE(aTHX_ PL_no_sock_func, "endprotoent");
4977 #ifdef HAS_ENDSERVENT
4979 PerlSock_endservent();
4983 DIE(aTHX_ PL_no_sock_func, "endservent");
4991 I32 which = PL_op->op_type;
4993 struct passwd *pwent = NULL;
4995 * We currently support only the SysV getsp* shadow password interface.
4996 * The interface is declared in <shadow.h> and often one needs to link
4997 * with -lsecurity or some such.
4998 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5001 * AIX getpwnam() is clever enough to return the encrypted password
5002 * only if the caller (euid?) is root.
5004 * There are at least three other shadow password APIs. Many platforms
5005 * seem to contain more than one interface for accessing the shadow
5006 * password databases, possibly for compatibility reasons.
5007 * The getsp*() is by far he simplest one, the other two interfaces
5008 * are much more complicated, but also very similar to each other.
5013 * struct pr_passwd *getprpw*();
5014 * The password is in
5015 * char getprpw*(...).ufld.fd_encrypt[]
5016 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5021 * struct es_passwd *getespw*();
5022 * The password is in
5023 * char *(getespw*(...).ufld.fd_encrypt)
5024 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5027 * struct userpw *getuserpw();
5028 * The password is in
5029 * char *(getuserpw(...)).spw_upw_passwd
5030 * (but the de facto standard getpwnam() should work okay)
5032 * Mention I_PROT here so that Configure probes for it.
5034 * In HP-UX for getprpw*() the manual page claims that one should include
5035 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5036 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5037 * and pp_sys.c already includes <shadow.h> if there is such.
5039 * Note that <sys/security.h> is already probed for, but currently
5040 * it is only included in special cases.
5042 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5043 * be preferred interface, even though also the getprpw*() interface
5044 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5045 * One also needs to call set_auth_parameters() in main() before
5046 * doing anything else, whether one is using getespw*() or getprpw*().
5048 * Note that accessing the shadow databases can be magnitudes
5049 * slower than accessing the standard databases.
5054 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5055 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5056 * the pw_comment is left uninitialized. */
5057 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5063 const char* const name = POPpbytex;
5064 pwent = getpwnam(name);
5070 pwent = getpwuid(uid);
5074 # ifdef HAS_GETPWENT
5076 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5077 if (pwent) pwent = getpwnam(pwent->pw_name);
5080 DIE(aTHX_ PL_no_func, "getpwent");
5086 if (GIMME != G_ARRAY) {
5087 PUSHs(sv = sv_newmortal());
5089 if (which == OP_GPWNAM)
5090 # if Uid_t_sign <= 0
5091 sv_setiv(sv, (IV)pwent->pw_uid);
5093 sv_setuv(sv, (UV)pwent->pw_uid);
5096 sv_setpv(sv, pwent->pw_name);
5102 PUSHs(sv_2mortal(newSVpv(pwent->pw_name, 0)));
5104 PUSHs(sv = sv_2mortal(newSViv(0)));
5105 /* If we have getspnam(), we try to dig up the shadow
5106 * password. If we are underprivileged, the shadow
5107 * interface will set the errno to EACCES or similar,
5108 * and return a null pointer. If this happens, we will
5109 * use the dummy password (usually "*" or "x") from the
5110 * standard password database.
5112 * In theory we could skip the shadow call completely
5113 * if euid != 0 but in practice we cannot know which
5114 * security measures are guarding the shadow databases
5115 * on a random platform.
5117 * Resist the urge to use additional shadow interfaces.
5118 * Divert the urge to writing an extension instead.
5121 /* Some AIX setups falsely(?) detect some getspnam(), which
5122 * has a different API than the Solaris/IRIX one. */
5123 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5125 const int saverrno = errno;
5126 const struct spwd * const spwent = getspnam(pwent->pw_name);
5127 /* Save and restore errno so that
5128 * underprivileged attempts seem
5129 * to have never made the unsccessful
5130 * attempt to retrieve the shadow password. */
5132 if (spwent && spwent->sp_pwdp)
5133 sv_setpv(sv, spwent->sp_pwdp);
5137 if (!SvPOK(sv)) /* Use the standard password, then. */
5138 sv_setpv(sv, pwent->pw_passwd);
5141 # ifndef INCOMPLETE_TAINTS
5142 /* passwd is tainted because user himself can diddle with it.
5143 * admittedly not much and in a very limited way, but nevertheless. */
5147 # if Uid_t_sign <= 0
5148 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_uid)));
5150 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_uid)));
5153 # if Uid_t_sign <= 0
5154 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_gid)));
5156 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_gid)));
5158 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5159 * because of the poor interface of the Perl getpw*(),
5160 * not because there's some standard/convention saying so.
5161 * A better interface would have been to return a hash,
5162 * but we are accursed by our history, alas. --jhi. */
5164 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_change)));
5167 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_quota)));
5170 PUSHs(sv_2mortal(newSVpv(pwent->pw_age, 0)));
5172 /* I think that you can never get this compiled, but just in case. */
5173 PUSHs(sv_mortalcopy(&PL_sv_no));
5178 /* pw_class and pw_comment are mutually exclusive--.
5179 * see the above note for pw_change, pw_quota, and pw_age. */
5181 PUSHs(sv_2mortal(newSVpv(pwent->pw_class, 0)));
5184 PUSHs(sv_2mortal(newSVpv(pwent->pw_comment, 0)));
5186 /* I think that you can never get this compiled, but just in case. */
5187 PUSHs(sv_mortalcopy(&PL_sv_no));
5192 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0)));
5194 PUSHs(sv_mortalcopy(&PL_sv_no));
5196 # ifndef INCOMPLETE_TAINTS
5197 /* pw_gecos is tainted because user himself can diddle with it. */
5201 PUSHs(sv_2mortal(newSVpv(pwent->pw_dir, 0)));
5203 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0)));
5204 # ifndef INCOMPLETE_TAINTS
5205 /* pw_shell is tainted because user himself can diddle with it. */
5210 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_expire)));
5215 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5221 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5226 DIE(aTHX_ PL_no_func, "setpwent");
5232 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5237 DIE(aTHX_ PL_no_func, "endpwent");
5245 const I32 which = PL_op->op_type;
5246 const struct group *grent;
5248 if (which == OP_GGRNAM) {
5249 const char* const name = POPpbytex;
5250 grent = (const struct group *)getgrnam(name);
5252 else if (which == OP_GGRGID) {
5253 const Gid_t gid = POPi;
5254 grent = (const struct group *)getgrgid(gid);
5258 grent = (struct group *)getgrent();
5260 DIE(aTHX_ PL_no_func, "getgrent");
5264 if (GIMME != G_ARRAY) {
5265 SV * const sv = sv_newmortal();
5269 if (which == OP_GGRNAM)
5270 sv_setiv(sv, (IV)grent->gr_gid);
5272 sv_setpv(sv, grent->gr_name);
5278 PUSHs(sv_2mortal(newSVpv(grent->gr_name, 0)));
5281 PUSHs(sv_2mortal(newSVpv(grent->gr_passwd, 0)));
5283 PUSHs(sv_mortalcopy(&PL_sv_no));
5286 PUSHs(sv_2mortal(newSViv((IV)grent->gr_gid)));
5288 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5289 /* In UNICOS/mk (_CRAYMPP) the multithreading
5290 * versions (getgrnam_r, getgrgid_r)
5291 * seem to return an illegal pointer
5292 * as the group members list, gr_mem.
5293 * getgrent() doesn't even have a _r version
5294 * but the gr_mem is poisonous anyway.
5295 * So yes, you cannot get the list of group
5296 * members if building multithreaded in UNICOS/mk. */
5297 PUSHs(space_join_names_mortal(grent->gr_mem));
5303 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5309 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5314 DIE(aTHX_ PL_no_func, "setgrent");
5320 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5325 DIE(aTHX_ PL_no_func, "endgrent");
5335 if (!(tmps = PerlProc_getlogin()))
5337 PUSHp(tmps, strlen(tmps));
5340 DIE(aTHX_ PL_no_func, "getlogin");
5344 /* Miscellaneous. */
5349 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
5350 register I32 items = SP - MARK;
5351 unsigned long a[20];
5356 while (++MARK <= SP) {
5357 if (SvTAINTED(*MARK)) {
5363 TAINT_PROPER("syscall");
5366 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5367 * or where sizeof(long) != sizeof(char*). But such machines will
5368 * not likely have syscall implemented either, so who cares?
5370 while (++MARK <= SP) {
5371 if (SvNIOK(*MARK) || !i)
5372 a[i++] = SvIV(*MARK);
5373 else if (*MARK == &PL_sv_undef)
5376 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5382 DIE(aTHX_ "Too many args to syscall");
5384 DIE(aTHX_ "Too few args to syscall");
5386 retval = syscall(a[0]);
5389 retval = syscall(a[0],a[1]);
5392 retval = syscall(a[0],a[1],a[2]);
5395 retval = syscall(a[0],a[1],a[2],a[3]);
5398 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5401 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5404 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5407 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5411 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5414 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5417 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5421 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5425 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5429 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5430 a[10],a[11],a[12],a[13]);
5432 #endif /* atarist */
5438 DIE(aTHX_ PL_no_func, "syscall");
5442 #ifdef FCNTL_EMULATE_FLOCK
5444 /* XXX Emulate flock() with fcntl().
5445 What's really needed is a good file locking module.
5449 fcntl_emulate_flock(int fd, int operation)
5453 switch (operation & ~LOCK_NB) {
5455 flock.l_type = F_RDLCK;
5458 flock.l_type = F_WRLCK;
5461 flock.l_type = F_UNLCK;
5467 flock.l_whence = SEEK_SET;
5468 flock.l_start = flock.l_len = (Off_t)0;
5470 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5473 #endif /* FCNTL_EMULATE_FLOCK */
5475 #ifdef LOCKF_EMULATE_FLOCK
5477 /* XXX Emulate flock() with lockf(). This is just to increase
5478 portability of scripts. The calls are not completely
5479 interchangeable. What's really needed is a good file
5483 /* The lockf() constants might have been defined in <unistd.h>.
5484 Unfortunately, <unistd.h> causes troubles on some mixed
5485 (BSD/POSIX) systems, such as SunOS 4.1.3.
5487 Further, the lockf() constants aren't POSIX, so they might not be
5488 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5489 just stick in the SVID values and be done with it. Sigh.
5493 # define F_ULOCK 0 /* Unlock a previously locked region */
5496 # define F_LOCK 1 /* Lock a region for exclusive use */
5499 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5502 # define F_TEST 3 /* Test a region for other processes locks */
5506 lockf_emulate_flock(int fd, int operation)
5509 const int save_errno = errno;
5512 /* flock locks entire file so for lockf we need to do the same */
5513 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5514 if (pos > 0) /* is seekable and needs to be repositioned */
5515 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5516 pos = -1; /* seek failed, so don't seek back afterwards */
5519 switch (operation) {
5521 /* LOCK_SH - get a shared lock */
5523 /* LOCK_EX - get an exclusive lock */
5525 i = lockf (fd, F_LOCK, 0);
5528 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5529 case LOCK_SH|LOCK_NB:
5530 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5531 case LOCK_EX|LOCK_NB:
5532 i = lockf (fd, F_TLOCK, 0);
5534 if ((errno == EAGAIN) || (errno == EACCES))
5535 errno = EWOULDBLOCK;
5538 /* LOCK_UN - unlock (non-blocking is a no-op) */
5540 case LOCK_UN|LOCK_NB:
5541 i = lockf (fd, F_ULOCK, 0);
5544 /* Default - can't decipher operation */
5551 if (pos > 0) /* need to restore position of the handle */
5552 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5557 #endif /* LOCKF_EMULATE_FLOCK */
5561 * c-indentation-style: bsd
5563 * indent-tabs-mode: t
5566 * ex: set ts=8 sts=4 sw=4 noet: