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;
3583 Size_t size = strlen(cmd) + (strlen(filename) * 2) + 10;
3585 Newx(cmdline, size, char);
3586 my_strlcpy(cmdline, cmd, size);
3587 my_strlcat(cmdline, " ", size);
3588 for (s = cmdline + strlen(cmdline); *filename; ) {
3592 if (s - cmdline < size)
3593 my_strlcpy(s, " 2>&1", size - (s - cmdline));
3594 myfp = PerlProc_popen(cmdline, "r");
3598 SV * const tmpsv = sv_newmortal();
3599 /* Need to save/restore 'PL_rs' ?? */
3600 s = sv_gets(tmpsv, myfp, 0);
3601 (void)PerlProc_pclose(myfp);
3605 #ifdef HAS_SYS_ERRLIST
3610 /* you don't see this */
3611 const char * const errmsg =
3612 #ifdef HAS_SYS_ERRLIST
3620 if (instr(s, errmsg)) {
3627 #define EACCES EPERM
3629 if (instr(s, "cannot make"))
3630 SETERRNO(EEXIST,RMS_FEX);
3631 else if (instr(s, "existing file"))
3632 SETERRNO(EEXIST,RMS_FEX);
3633 else if (instr(s, "ile exists"))
3634 SETERRNO(EEXIST,RMS_FEX);
3635 else if (instr(s, "non-exist"))
3636 SETERRNO(ENOENT,RMS_FNF);
3637 else if (instr(s, "does not exist"))
3638 SETERRNO(ENOENT,RMS_FNF);
3639 else if (instr(s, "not empty"))
3640 SETERRNO(EBUSY,SS_DEVOFFLINE);
3641 else if (instr(s, "cannot access"))
3642 SETERRNO(EACCES,RMS_PRV);
3644 SETERRNO(EPERM,RMS_PRV);
3647 else { /* some mkdirs return no failure indication */
3648 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3649 if (PL_op->op_type == OP_RMDIR)
3654 SETERRNO(EACCES,RMS_PRV); /* a guess */
3663 /* This macro removes trailing slashes from a directory name.
3664 * Different operating and file systems take differently to
3665 * trailing slashes. According to POSIX 1003.1 1996 Edition
3666 * any number of trailing slashes should be allowed.
3667 * Thusly we snip them away so that even non-conforming
3668 * systems are happy.
3669 * We should probably do this "filtering" for all
3670 * the functions that expect (potentially) directory names:
3671 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3672 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3674 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3675 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3678 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3679 (tmps) = savepvn((tmps), (len)); \
3689 const int mode = (MAXARG > 1) ? POPi : 0777;
3691 TRIMSLASHES(tmps,len,copy);
3693 TAINT_PROPER("mkdir");
3695 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3699 SETi( dooneliner("mkdir", tmps) );
3700 oldumask = PerlLIO_umask(0);
3701 PerlLIO_umask(oldumask);
3702 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3717 TRIMSLASHES(tmps,len,copy);
3718 TAINT_PROPER("rmdir");
3720 SETi( PerlDir_rmdir(tmps) >= 0 );
3722 SETi( dooneliner("rmdir", tmps) );
3729 /* Directory calls. */
3733 #if defined(Direntry_t) && defined(HAS_READDIR)
3735 const char * const dirname = POPpconstx;
3736 GV * const gv = (GV*)POPs;
3737 register IO * const io = GvIOn(gv);
3743 PerlDir_close(IoDIRP(io));
3744 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3750 SETERRNO(EBADF,RMS_DIR);
3753 DIE(aTHX_ PL_no_dir_func, "opendir");
3759 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3760 DIE(aTHX_ PL_no_dir_func, "readdir");
3762 #if !defined(I_DIRENT) && !defined(VMS)
3763 Direntry_t *readdir (DIR *);
3769 const I32 gimme = GIMME;
3770 GV * const gv = (GV *)POPs;
3771 register const Direntry_t *dp;
3772 register IO * const io = GvIOn(gv);
3774 if (!io || !IoDIRP(io)) {
3775 if(ckWARN(WARN_IO)) {
3776 Perl_warner(aTHX_ packWARN(WARN_IO),
3777 "readdir() attempted on invalid dirhandle %s", GvENAME(gv));
3783 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3787 sv = newSVpvn(dp->d_name, dp->d_namlen);
3789 sv = newSVpv(dp->d_name, 0);
3791 #ifndef INCOMPLETE_TAINTS
3792 if (!(IoFLAGS(io) & IOf_UNTAINT))
3795 XPUSHs(sv_2mortal(sv));
3796 } while (gimme == G_ARRAY);
3798 if (!dp && gimme != G_ARRAY)
3805 SETERRNO(EBADF,RMS_ISI);
3806 if (GIMME == G_ARRAY)
3815 #if defined(HAS_TELLDIR) || defined(telldir)
3817 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3818 /* XXX netbsd still seemed to.
3819 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3820 --JHI 1999-Feb-02 */
3821 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3822 long telldir (DIR *);
3824 GV * const gv = (GV*)POPs;
3825 register IO * const io = GvIOn(gv);
3827 if (!io || !IoDIRP(io)) {
3828 if(ckWARN(WARN_IO)) {
3829 Perl_warner(aTHX_ packWARN(WARN_IO),
3830 "telldir() attempted on invalid dirhandle %s", GvENAME(gv));
3835 PUSHi( PerlDir_tell(IoDIRP(io)) );
3839 SETERRNO(EBADF,RMS_ISI);
3842 DIE(aTHX_ PL_no_dir_func, "telldir");
3848 #if defined(HAS_SEEKDIR) || defined(seekdir)
3850 const long along = POPl;
3851 GV * const gv = (GV*)POPs;
3852 register IO * const io = GvIOn(gv);
3854 if (!io || !IoDIRP(io)) {
3855 if(ckWARN(WARN_IO)) {
3856 Perl_warner(aTHX_ packWARN(WARN_IO),
3857 "seekdir() attempted on invalid dirhandle %s", GvENAME(gv));
3861 (void)PerlDir_seek(IoDIRP(io), along);
3866 SETERRNO(EBADF,RMS_ISI);
3869 DIE(aTHX_ PL_no_dir_func, "seekdir");
3875 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3877 GV * const gv = (GV*)POPs;
3878 register IO * const io = GvIOn(gv);
3880 if (!io || !IoDIRP(io)) {
3881 if(ckWARN(WARN_IO)) {
3882 Perl_warner(aTHX_ packWARN(WARN_IO),
3883 "rewinddir() attempted on invalid dirhandle %s", GvENAME(gv));
3887 (void)PerlDir_rewind(IoDIRP(io));
3891 SETERRNO(EBADF,RMS_ISI);
3894 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3900 #if defined(Direntry_t) && defined(HAS_READDIR)
3902 GV * const gv = (GV*)POPs;
3903 register IO * const io = GvIOn(gv);
3905 if (!io || !IoDIRP(io)) {
3906 if(ckWARN(WARN_IO)) {
3907 Perl_warner(aTHX_ packWARN(WARN_IO),
3908 "closedir() attempted on invalid dirhandle %s", GvENAME(gv));
3912 #ifdef VOID_CLOSEDIR
3913 PerlDir_close(IoDIRP(io));
3915 if (PerlDir_close(IoDIRP(io)) < 0) {
3916 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3925 SETERRNO(EBADF,RMS_IFI);
3928 DIE(aTHX_ PL_no_dir_func, "closedir");
3932 /* Process control. */
3941 PERL_FLUSHALL_FOR_CHILD;
3942 childpid = PerlProc_fork();
3946 GV * const tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV);
3948 SvREADONLY_off(GvSV(tmpgv));
3949 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3950 SvREADONLY_on(GvSV(tmpgv));
3952 #ifdef THREADS_HAVE_PIDS
3953 PL_ppid = (IV)getppid();
3955 #ifdef PERL_USES_PL_PIDSTATUS
3956 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3962 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3967 PERL_FLUSHALL_FOR_CHILD;
3968 childpid = PerlProc_fork();
3974 DIE(aTHX_ PL_no_func, "fork");
3981 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3986 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
3987 childpid = wait4pid(-1, &argflags, 0);
3989 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
3994 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3995 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3996 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
3998 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
4003 DIE(aTHX_ PL_no_func, "wait");
4009 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4011 const int optype = POPi;
4012 const Pid_t pid = TOPi;
4016 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4017 result = wait4pid(pid, &argflags, optype);
4019 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4024 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4025 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4026 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
4028 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
4033 DIE(aTHX_ PL_no_func, "waitpid");
4039 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
4045 while (++MARK <= SP) {
4046 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4051 TAINT_PROPER("system");
4053 PERL_FLUSHALL_FOR_CHILD;
4054 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4060 if (PerlProc_pipe(pp) >= 0)
4062 while ((childpid = PerlProc_fork()) == -1) {
4063 if (errno != EAGAIN) {
4068 PerlLIO_close(pp[0]);
4069 PerlLIO_close(pp[1]);
4076 Sigsave_t ihand,qhand; /* place to save signals during system() */
4080 PerlLIO_close(pp[1]);
4082 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4083 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
4086 result = wait4pid(childpid, &status, 0);
4087 } while (result == -1 && errno == EINTR);
4089 (void)rsignal_restore(SIGINT, &ihand);
4090 (void)rsignal_restore(SIGQUIT, &qhand);
4092 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
4093 do_execfree(); /* free any memory child malloced on fork */
4100 while (n < sizeof(int)) {
4101 n1 = PerlLIO_read(pp[0],
4102 (void*)(((char*)&errkid)+n),
4108 PerlLIO_close(pp[0]);
4109 if (n) { /* Error */
4110 if (n != sizeof(int))
4111 DIE(aTHX_ "panic: kid popen errno read");
4112 errno = errkid; /* Propagate errno from kid */
4113 STATUS_NATIVE_CHILD_SET(-1);
4116 XPUSHi(STATUS_CURRENT);
4120 PerlLIO_close(pp[0]);
4121 #if defined(HAS_FCNTL) && defined(F_SETFD)
4122 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4125 if (PL_op->op_flags & OPf_STACKED) {
4126 SV * const really = *++MARK;
4127 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4129 else if (SP - MARK != 1)
4130 value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes);
4132 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4136 #else /* ! FORK or VMS or OS/2 */
4139 if (PL_op->op_flags & OPf_STACKED) {
4140 SV * const really = *++MARK;
4141 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4142 value = (I32)do_aspawn(really, MARK, SP);
4144 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4147 else if (SP - MARK != 1) {
4148 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4149 value = (I32)do_aspawn(NULL, MARK, SP);
4151 value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP);
4155 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4157 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4159 STATUS_NATIVE_CHILD_SET(value);
4162 XPUSHi(result ? value : STATUS_CURRENT);
4163 #endif /* !FORK or VMS */
4169 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
4174 while (++MARK <= SP) {
4175 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4180 TAINT_PROPER("exec");
4182 PERL_FLUSHALL_FOR_CHILD;
4183 if (PL_op->op_flags & OPf_STACKED) {
4184 SV * const really = *++MARK;
4185 value = (I32)do_aexec(really, MARK, SP);
4187 else if (SP - MARK != 1)
4189 value = (I32)vms_do_aexec(NULL, MARK, SP);
4193 (void ) do_aspawn(NULL, MARK, SP);
4197 value = (I32)do_aexec(NULL, MARK, SP);
4202 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4205 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4208 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4222 # ifdef THREADS_HAVE_PIDS
4223 if (PL_ppid != 1 && getppid() == 1)
4224 /* maybe the parent process has died. Refresh ppid cache */
4228 XPUSHi( getppid() );
4232 DIE(aTHX_ PL_no_func, "getppid");
4241 const Pid_t pid = (MAXARG < 1) ? 0 : SvIVx(POPs);
4244 pgrp = (I32)BSD_GETPGRP(pid);
4246 if (pid != 0 && pid != PerlProc_getpid())
4247 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4253 DIE(aTHX_ PL_no_func, "getpgrp()");
4272 TAINT_PROPER("setpgrp");
4274 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4276 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4277 || (pid != 0 && pid != PerlProc_getpid()))
4279 DIE(aTHX_ "setpgrp can't take arguments");
4281 SETi( setpgrp() >= 0 );
4282 #endif /* USE_BSDPGRP */
4285 DIE(aTHX_ PL_no_func, "setpgrp()");
4291 #ifdef HAS_GETPRIORITY
4293 const int who = POPi;
4294 const int which = TOPi;
4295 SETi( getpriority(which, who) );
4298 DIE(aTHX_ PL_no_func, "getpriority()");
4304 #ifdef HAS_SETPRIORITY
4306 const int niceval = POPi;
4307 const int who = POPi;
4308 const int which = TOPi;
4309 TAINT_PROPER("setpriority");
4310 SETi( setpriority(which, who, niceval) >= 0 );
4313 DIE(aTHX_ PL_no_func, "setpriority()");
4323 XPUSHn( time(NULL) );
4325 XPUSHi( time(NULL) );
4337 (void)PerlProc_times(&PL_timesbuf);
4339 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4340 /* struct tms, though same data */
4344 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4345 if (GIMME == G_ARRAY) {
4346 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4347 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4348 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4354 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4356 if (GIMME == G_ARRAY) {
4357 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4358 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4359 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4363 DIE(aTHX_ "times not implemented");
4365 #endif /* HAS_TIMES */
4368 #ifdef LOCALTIME_EDGECASE_BROKEN
4369 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4374 /* No workarounds in the valid range */
4375 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4376 return (localtime (tp));
4378 /* This edge case is to workaround the undefined behaviour, where the
4379 * TIMEZONE makes the time go beyond the defined range.
4380 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4381 * If there is a negative offset in TZ, like MET-1METDST, some broken
4382 * implementations of localtime () (like AIX 5.2) barf with bogus
4384 * 0x7fffffff gmtime 2038-01-19 03:14:07
4385 * 0x7fffffff localtime 1901-12-13 21:45:51
4386 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4387 * 0x3c19137f gmtime 2001-12-13 20:45:51
4388 * 0x3c19137f localtime 2001-12-13 21:45:51
4389 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4390 * Given that legal timezones are typically between GMT-12 and GMT+12
4391 * we turn back the clock 23 hours before calling the localtime
4392 * function, and add those to the return value. This will never cause
4393 * day wrapping problems, since the edge case is Tue Jan *19*
4395 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4398 if (P->tm_hour >= 24) {
4400 P->tm_mday++; /* 18 -> 19 */
4401 P->tm_wday++; /* Mon -> Tue */
4402 P->tm_yday++; /* 18 -> 19 */
4405 } /* S_my_localtime */
4413 const struct tm *tmbuf;
4414 static const char * const dayname[] =
4415 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4416 static const char * const monname[] =
4417 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4418 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4424 when = (Time_t)SvNVx(POPs);
4426 when = (Time_t)SvIVx(POPs);
4429 if (PL_op->op_type == OP_LOCALTIME)
4430 #ifdef LOCALTIME_EDGECASE_BROKEN
4431 tmbuf = S_my_localtime(aTHX_ &when);
4433 tmbuf = localtime(&when);
4436 tmbuf = gmtime(&when);
4438 if (GIMME != G_ARRAY) {
4444 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4445 dayname[tmbuf->tm_wday],
4446 monname[tmbuf->tm_mon],
4451 tmbuf->tm_year + 1900);
4452 PUSHs(sv_2mortal(tsv));
4457 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4458 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4459 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4460 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4461 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4462 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4463 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4464 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4465 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4476 anum = alarm((unsigned int)anum);
4483 DIE(aTHX_ PL_no_func, "alarm");
4494 (void)time(&lasttime);
4499 PerlProc_sleep((unsigned int)duration);
4502 XPUSHi(when - lasttime);
4506 /* Shared memory. */
4507 /* Merged with some message passing. */
4511 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4512 dVAR; dSP; dMARK; dTARGET;
4513 const int op_type = PL_op->op_type;
4518 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4521 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4524 value = (I32)(do_semop(MARK, SP) >= 0);
4527 value = (I32)(do_shmio(op_type, MARK, SP) >= 0);
4543 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4544 dVAR; dSP; dMARK; dTARGET;
4545 const int anum = do_ipcget(PL_op->op_type, MARK, SP);
4552 DIE(aTHX_ "System V IPC is not implemented on this machine");
4558 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4559 dVAR; dSP; dMARK; dTARGET;
4560 const int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4568 PUSHp(zero_but_true, ZBTLEN);
4576 /* I can't const this further without getting warnings about the types of
4577 various arrays passed in from structures. */
4579 S_space_join_names_mortal(pTHX_ char *const *array)
4583 if (array && *array) {
4584 target = sv_2mortal(newSVpvs(""));
4586 sv_catpv(target, *array);
4589 sv_catpvs(target, " ");
4592 target = sv_mortalcopy(&PL_sv_no);
4597 /* Get system info. */
4601 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4603 I32 which = PL_op->op_type;
4604 register char **elem;
4606 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4607 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4608 struct hostent *gethostbyname(Netdb_name_t);
4609 struct hostent *gethostent(void);
4611 struct hostent *hent;
4615 if (which == OP_GHBYNAME) {
4616 #ifdef HAS_GETHOSTBYNAME
4617 const char* const name = POPpbytex;
4618 hent = PerlSock_gethostbyname(name);
4620 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4623 else if (which == OP_GHBYADDR) {
4624 #ifdef HAS_GETHOSTBYADDR
4625 const int addrtype = POPi;
4626 SV * const addrsv = POPs;
4628 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4630 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4632 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4636 #ifdef HAS_GETHOSTENT
4637 hent = PerlSock_gethostent();
4639 DIE(aTHX_ PL_no_sock_func, "gethostent");
4642 #ifdef HOST_NOT_FOUND
4644 #ifdef USE_REENTRANT_API
4645 # ifdef USE_GETHOSTENT_ERRNO
4646 h_errno = PL_reentrant_buffer->_gethostent_errno;
4649 STATUS_UNIX_SET(h_errno);
4653 if (GIMME != G_ARRAY) {
4654 PUSHs(sv = sv_newmortal());
4656 if (which == OP_GHBYNAME) {
4658 sv_setpvn(sv, hent->h_addr, hent->h_length);
4661 sv_setpv(sv, (char*)hent->h_name);
4667 PUSHs(sv_2mortal(newSVpv((char*)hent->h_name, 0)));
4668 PUSHs(space_join_names_mortal(hent->h_aliases));
4669 PUSHs(sv_2mortal(newSViv((IV)hent->h_addrtype)));
4670 len = hent->h_length;
4671 PUSHs(sv_2mortal(newSViv((IV)len)));
4673 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4674 XPUSHs(sv_2mortal(newSVpvn(*elem, len)));
4678 PUSHs(newSVpvn(hent->h_addr, len));
4680 PUSHs(sv_mortalcopy(&PL_sv_no));
4685 DIE(aTHX_ PL_no_sock_func, "gethostent");
4691 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4693 I32 which = PL_op->op_type;
4695 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4696 struct netent *getnetbyaddr(Netdb_net_t, int);
4697 struct netent *getnetbyname(Netdb_name_t);
4698 struct netent *getnetent(void);
4700 struct netent *nent;
4702 if (which == OP_GNBYNAME){
4703 #ifdef HAS_GETNETBYNAME
4704 const char * const name = POPpbytex;
4705 nent = PerlSock_getnetbyname(name);
4707 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4710 else if (which == OP_GNBYADDR) {
4711 #ifdef HAS_GETNETBYADDR
4712 const int addrtype = POPi;
4713 const Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4714 nent = PerlSock_getnetbyaddr(addr, addrtype);
4716 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4720 #ifdef HAS_GETNETENT
4721 nent = PerlSock_getnetent();
4723 DIE(aTHX_ PL_no_sock_func, "getnetent");
4726 #ifdef HOST_NOT_FOUND
4728 #ifdef USE_REENTRANT_API
4729 # ifdef USE_GETNETENT_ERRNO
4730 h_errno = PL_reentrant_buffer->_getnetent_errno;
4733 STATUS_UNIX_SET(h_errno);
4738 if (GIMME != G_ARRAY) {
4739 PUSHs(sv = sv_newmortal());
4741 if (which == OP_GNBYNAME)
4742 sv_setiv(sv, (IV)nent->n_net);
4744 sv_setpv(sv, nent->n_name);
4750 PUSHs(sv_2mortal(newSVpv(nent->n_name, 0)));
4751 PUSHs(space_join_names_mortal(nent->n_aliases));
4752 PUSHs(sv_2mortal(newSViv((IV)nent->n_addrtype)));
4753 PUSHs(sv_2mortal(newSViv((IV)nent->n_net)));
4758 DIE(aTHX_ PL_no_sock_func, "getnetent");
4764 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4766 I32 which = PL_op->op_type;
4768 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4769 struct protoent *getprotobyname(Netdb_name_t);
4770 struct protoent *getprotobynumber(int);
4771 struct protoent *getprotoent(void);
4773 struct protoent *pent;
4775 if (which == OP_GPBYNAME) {
4776 #ifdef HAS_GETPROTOBYNAME
4777 const char* const name = POPpbytex;
4778 pent = PerlSock_getprotobyname(name);
4780 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4783 else if (which == OP_GPBYNUMBER) {
4784 #ifdef HAS_GETPROTOBYNUMBER
4785 const int number = POPi;
4786 pent = PerlSock_getprotobynumber(number);
4788 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4792 #ifdef HAS_GETPROTOENT
4793 pent = PerlSock_getprotoent();
4795 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4799 if (GIMME != G_ARRAY) {
4800 PUSHs(sv = sv_newmortal());
4802 if (which == OP_GPBYNAME)
4803 sv_setiv(sv, (IV)pent->p_proto);
4805 sv_setpv(sv, pent->p_name);
4811 PUSHs(sv_2mortal(newSVpv(pent->p_name, 0)));
4812 PUSHs(space_join_names_mortal(pent->p_aliases));
4813 PUSHs(sv_2mortal(newSViv((IV)pent->p_proto)));
4818 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4824 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4826 I32 which = PL_op->op_type;
4828 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4829 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4830 struct servent *getservbyport(int, Netdb_name_t);
4831 struct servent *getservent(void);
4833 struct servent *sent;
4835 if (which == OP_GSBYNAME) {
4836 #ifdef HAS_GETSERVBYNAME
4837 const char * const proto = POPpbytex;
4838 const char * const name = POPpbytex;
4839 sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto);
4841 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4844 else if (which == OP_GSBYPORT) {
4845 #ifdef HAS_GETSERVBYPORT
4846 const char * const proto = POPpbytex;
4847 unsigned short port = (unsigned short)POPu;
4849 port = PerlSock_htons(port);
4851 sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto);
4853 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4857 #ifdef HAS_GETSERVENT
4858 sent = PerlSock_getservent();
4860 DIE(aTHX_ PL_no_sock_func, "getservent");
4864 if (GIMME != G_ARRAY) {
4865 PUSHs(sv = sv_newmortal());
4867 if (which == OP_GSBYNAME) {
4869 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4871 sv_setiv(sv, (IV)(sent->s_port));
4875 sv_setpv(sv, sent->s_name);
4881 PUSHs(sv_2mortal(newSVpv(sent->s_name, 0)));
4882 PUSHs(space_join_names_mortal(sent->s_aliases));
4884 PUSHs(sv_2mortal(newSViv((IV)PerlSock_ntohs(sent->s_port))));
4886 PUSHs(sv_2mortal(newSViv((IV)(sent->s_port))));
4888 PUSHs(sv_2mortal(newSVpv(sent->s_proto, 0)));
4893 DIE(aTHX_ PL_no_sock_func, "getservent");
4899 #ifdef HAS_SETHOSTENT
4901 PerlSock_sethostent(TOPi);
4904 DIE(aTHX_ PL_no_sock_func, "sethostent");
4910 #ifdef HAS_SETNETENT
4912 PerlSock_setnetent(TOPi);
4915 DIE(aTHX_ PL_no_sock_func, "setnetent");
4921 #ifdef HAS_SETPROTOENT
4923 PerlSock_setprotoent(TOPi);
4926 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4932 #ifdef HAS_SETSERVENT
4934 PerlSock_setservent(TOPi);
4937 DIE(aTHX_ PL_no_sock_func, "setservent");
4943 #ifdef HAS_ENDHOSTENT
4945 PerlSock_endhostent();
4949 DIE(aTHX_ PL_no_sock_func, "endhostent");
4955 #ifdef HAS_ENDNETENT
4957 PerlSock_endnetent();
4961 DIE(aTHX_ PL_no_sock_func, "endnetent");
4967 #ifdef HAS_ENDPROTOENT
4969 PerlSock_endprotoent();
4973 DIE(aTHX_ PL_no_sock_func, "endprotoent");
4979 #ifdef HAS_ENDSERVENT
4981 PerlSock_endservent();
4985 DIE(aTHX_ PL_no_sock_func, "endservent");
4993 I32 which = PL_op->op_type;
4995 struct passwd *pwent = NULL;
4997 * We currently support only the SysV getsp* shadow password interface.
4998 * The interface is declared in <shadow.h> and often one needs to link
4999 * with -lsecurity or some such.
5000 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5003 * AIX getpwnam() is clever enough to return the encrypted password
5004 * only if the caller (euid?) is root.
5006 * There are at least three other shadow password APIs. Many platforms
5007 * seem to contain more than one interface for accessing the shadow
5008 * password databases, possibly for compatibility reasons.
5009 * The getsp*() is by far he simplest one, the other two interfaces
5010 * are much more complicated, but also very similar to each other.
5015 * struct pr_passwd *getprpw*();
5016 * The password is in
5017 * char getprpw*(...).ufld.fd_encrypt[]
5018 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5023 * struct es_passwd *getespw*();
5024 * The password is in
5025 * char *(getespw*(...).ufld.fd_encrypt)
5026 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5029 * struct userpw *getuserpw();
5030 * The password is in
5031 * char *(getuserpw(...)).spw_upw_passwd
5032 * (but the de facto standard getpwnam() should work okay)
5034 * Mention I_PROT here so that Configure probes for it.
5036 * In HP-UX for getprpw*() the manual page claims that one should include
5037 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5038 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5039 * and pp_sys.c already includes <shadow.h> if there is such.
5041 * Note that <sys/security.h> is already probed for, but currently
5042 * it is only included in special cases.
5044 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5045 * be preferred interface, even though also the getprpw*() interface
5046 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5047 * One also needs to call set_auth_parameters() in main() before
5048 * doing anything else, whether one is using getespw*() or getprpw*().
5050 * Note that accessing the shadow databases can be magnitudes
5051 * slower than accessing the standard databases.
5056 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5057 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5058 * the pw_comment is left uninitialized. */
5059 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5065 const char* const name = POPpbytex;
5066 pwent = getpwnam(name);
5072 pwent = getpwuid(uid);
5076 # ifdef HAS_GETPWENT
5078 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5079 if (pwent) pwent = getpwnam(pwent->pw_name);
5082 DIE(aTHX_ PL_no_func, "getpwent");
5088 if (GIMME != G_ARRAY) {
5089 PUSHs(sv = sv_newmortal());
5091 if (which == OP_GPWNAM)
5092 # if Uid_t_sign <= 0
5093 sv_setiv(sv, (IV)pwent->pw_uid);
5095 sv_setuv(sv, (UV)pwent->pw_uid);
5098 sv_setpv(sv, pwent->pw_name);
5104 PUSHs(sv_2mortal(newSVpv(pwent->pw_name, 0)));
5106 PUSHs(sv = sv_2mortal(newSViv(0)));
5107 /* If we have getspnam(), we try to dig up the shadow
5108 * password. If we are underprivileged, the shadow
5109 * interface will set the errno to EACCES or similar,
5110 * and return a null pointer. If this happens, we will
5111 * use the dummy password (usually "*" or "x") from the
5112 * standard password database.
5114 * In theory we could skip the shadow call completely
5115 * if euid != 0 but in practice we cannot know which
5116 * security measures are guarding the shadow databases
5117 * on a random platform.
5119 * Resist the urge to use additional shadow interfaces.
5120 * Divert the urge to writing an extension instead.
5123 /* Some AIX setups falsely(?) detect some getspnam(), which
5124 * has a different API than the Solaris/IRIX one. */
5125 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5127 const int saverrno = errno;
5128 const struct spwd * const spwent = getspnam(pwent->pw_name);
5129 /* Save and restore errno so that
5130 * underprivileged attempts seem
5131 * to have never made the unsccessful
5132 * attempt to retrieve the shadow password. */
5134 if (spwent && spwent->sp_pwdp)
5135 sv_setpv(sv, spwent->sp_pwdp);
5139 if (!SvPOK(sv)) /* Use the standard password, then. */
5140 sv_setpv(sv, pwent->pw_passwd);
5143 # ifndef INCOMPLETE_TAINTS
5144 /* passwd is tainted because user himself can diddle with it.
5145 * admittedly not much and in a very limited way, but nevertheless. */
5149 # if Uid_t_sign <= 0
5150 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_uid)));
5152 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_uid)));
5155 # if Uid_t_sign <= 0
5156 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_gid)));
5158 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_gid)));
5160 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5161 * because of the poor interface of the Perl getpw*(),
5162 * not because there's some standard/convention saying so.
5163 * A better interface would have been to return a hash,
5164 * but we are accursed by our history, alas. --jhi. */
5166 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_change)));
5169 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_quota)));
5172 PUSHs(sv_2mortal(newSVpv(pwent->pw_age, 0)));
5174 /* I think that you can never get this compiled, but just in case. */
5175 PUSHs(sv_mortalcopy(&PL_sv_no));
5180 /* pw_class and pw_comment are mutually exclusive--.
5181 * see the above note for pw_change, pw_quota, and pw_age. */
5183 PUSHs(sv_2mortal(newSVpv(pwent->pw_class, 0)));
5186 PUSHs(sv_2mortal(newSVpv(pwent->pw_comment, 0)));
5188 /* I think that you can never get this compiled, but just in case. */
5189 PUSHs(sv_mortalcopy(&PL_sv_no));
5194 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0)));
5196 PUSHs(sv_mortalcopy(&PL_sv_no));
5198 # ifndef INCOMPLETE_TAINTS
5199 /* pw_gecos is tainted because user himself can diddle with it. */
5203 PUSHs(sv_2mortal(newSVpv(pwent->pw_dir, 0)));
5205 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0)));
5206 # ifndef INCOMPLETE_TAINTS
5207 /* pw_shell is tainted because user himself can diddle with it. */
5212 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_expire)));
5217 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5223 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5228 DIE(aTHX_ PL_no_func, "setpwent");
5234 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5239 DIE(aTHX_ PL_no_func, "endpwent");
5247 const I32 which = PL_op->op_type;
5248 const struct group *grent;
5250 if (which == OP_GGRNAM) {
5251 const char* const name = POPpbytex;
5252 grent = (const struct group *)getgrnam(name);
5254 else if (which == OP_GGRGID) {
5255 const Gid_t gid = POPi;
5256 grent = (const struct group *)getgrgid(gid);
5260 grent = (struct group *)getgrent();
5262 DIE(aTHX_ PL_no_func, "getgrent");
5266 if (GIMME != G_ARRAY) {
5267 SV * const sv = sv_newmortal();
5271 if (which == OP_GGRNAM)
5272 sv_setiv(sv, (IV)grent->gr_gid);
5274 sv_setpv(sv, grent->gr_name);
5280 PUSHs(sv_2mortal(newSVpv(grent->gr_name, 0)));
5283 PUSHs(sv_2mortal(newSVpv(grent->gr_passwd, 0)));
5285 PUSHs(sv_mortalcopy(&PL_sv_no));
5288 PUSHs(sv_2mortal(newSViv((IV)grent->gr_gid)));
5290 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5291 /* In UNICOS/mk (_CRAYMPP) the multithreading
5292 * versions (getgrnam_r, getgrgid_r)
5293 * seem to return an illegal pointer
5294 * as the group members list, gr_mem.
5295 * getgrent() doesn't even have a _r version
5296 * but the gr_mem is poisonous anyway.
5297 * So yes, you cannot get the list of group
5298 * members if building multithreaded in UNICOS/mk. */
5299 PUSHs(space_join_names_mortal(grent->gr_mem));
5305 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5311 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5316 DIE(aTHX_ PL_no_func, "setgrent");
5322 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5327 DIE(aTHX_ PL_no_func, "endgrent");
5337 if (!(tmps = PerlProc_getlogin()))
5339 PUSHp(tmps, strlen(tmps));
5342 DIE(aTHX_ PL_no_func, "getlogin");
5346 /* Miscellaneous. */
5351 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
5352 register I32 items = SP - MARK;
5353 unsigned long a[20];
5358 while (++MARK <= SP) {
5359 if (SvTAINTED(*MARK)) {
5365 TAINT_PROPER("syscall");
5368 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5369 * or where sizeof(long) != sizeof(char*). But such machines will
5370 * not likely have syscall implemented either, so who cares?
5372 while (++MARK <= SP) {
5373 if (SvNIOK(*MARK) || !i)
5374 a[i++] = SvIV(*MARK);
5375 else if (*MARK == &PL_sv_undef)
5378 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5384 DIE(aTHX_ "Too many args to syscall");
5386 DIE(aTHX_ "Too few args to syscall");
5388 retval = syscall(a[0]);
5391 retval = syscall(a[0],a[1]);
5394 retval = syscall(a[0],a[1],a[2]);
5397 retval = syscall(a[0],a[1],a[2],a[3]);
5400 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5403 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5406 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5409 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5413 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5416 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5419 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5423 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5427 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5431 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5432 a[10],a[11],a[12],a[13]);
5434 #endif /* atarist */
5440 DIE(aTHX_ PL_no_func, "syscall");
5444 #ifdef FCNTL_EMULATE_FLOCK
5446 /* XXX Emulate flock() with fcntl().
5447 What's really needed is a good file locking module.
5451 fcntl_emulate_flock(int fd, int operation)
5455 switch (operation & ~LOCK_NB) {
5457 flock.l_type = F_RDLCK;
5460 flock.l_type = F_WRLCK;
5463 flock.l_type = F_UNLCK;
5469 flock.l_whence = SEEK_SET;
5470 flock.l_start = flock.l_len = (Off_t)0;
5472 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5475 #endif /* FCNTL_EMULATE_FLOCK */
5477 #ifdef LOCKF_EMULATE_FLOCK
5479 /* XXX Emulate flock() with lockf(). This is just to increase
5480 portability of scripts. The calls are not completely
5481 interchangeable. What's really needed is a good file
5485 /* The lockf() constants might have been defined in <unistd.h>.
5486 Unfortunately, <unistd.h> causes troubles on some mixed
5487 (BSD/POSIX) systems, such as SunOS 4.1.3.
5489 Further, the lockf() constants aren't POSIX, so they might not be
5490 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5491 just stick in the SVID values and be done with it. Sigh.
5495 # define F_ULOCK 0 /* Unlock a previously locked region */
5498 # define F_LOCK 1 /* Lock a region for exclusive use */
5501 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5504 # define F_TEST 3 /* Test a region for other processes locks */
5508 lockf_emulate_flock(int fd, int operation)
5511 const int save_errno = errno;
5514 /* flock locks entire file so for lockf we need to do the same */
5515 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5516 if (pos > 0) /* is seekable and needs to be repositioned */
5517 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5518 pos = -1; /* seek failed, so don't seek back afterwards */
5521 switch (operation) {
5523 /* LOCK_SH - get a shared lock */
5525 /* LOCK_EX - get an exclusive lock */
5527 i = lockf (fd, F_LOCK, 0);
5530 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5531 case LOCK_SH|LOCK_NB:
5532 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5533 case LOCK_EX|LOCK_NB:
5534 i = lockf (fd, F_TLOCK, 0);
5536 if ((errno == EAGAIN) || (errno == EACCES))
5537 errno = EWOULDBLOCK;
5540 /* LOCK_UN - unlock (non-blocking is a no-op) */
5542 case LOCK_UN|LOCK_NB:
5543 i = lockf (fd, F_ULOCK, 0);
5546 /* Default - can't decipher operation */
5553 if (pos > 0) /* need to restore position of the handle */
5554 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5559 #endif /* LOCKF_EMULATE_FLOCK */
5563 * c-indentation-style: bsd
5565 * indent-tabs-mode: t
5568 * ex: set ts=8 sts=4 sw=4 noet: