3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
18 /* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
28 #define PERL_IN_PP_SYS_C
32 /* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
34 * The API is from SysV.
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
41 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
49 # include <sys/wait.h>
53 # include <sys/resource.h>
62 # include <sys/select.h>
66 /* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
73 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
88 struct passwd *getpwent (void);
89 #elif defined (VMS) && defined (my_getpwent)
90 struct passwd *Perl_my_getpwent (void);
99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
104 struct group *getgrent (void);
110 # if defined(_MSC_VER) || defined(__MINGW32__)
111 # include <sys/utime.h>
118 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
121 # define my_chsize PerlLIO_chsize
124 # define my_chsize PerlLIO_chsize
126 I32 my_chsize(int fd, Off_t length);
132 #else /* no flock() */
134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
142 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
143 # define FLOCK fcntl_emulate_flock
144 # define FCNTL_EMULATE_FLOCK
145 # else /* no flock() or fcntl(F_SETLK,...) */
147 # define FLOCK lockf_emulate_flock
148 # define LOCKF_EMULATE_FLOCK
150 # endif /* no flock() or fcntl(F_SETLK,...) */
153 static int FLOCK (int, int);
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
171 # endif /* emulating flock() */
173 #endif /* no flock() */
176 static const char zero_but_true[ZBTLEN + 1] = "0 but true";
178 #if defined(I_SYS_ACCESS) && !defined(R_OK)
179 # include <sys/access.h>
182 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183 # define FD_CLOEXEC 1 /* NeXT needs this */
189 /* Missing protos on LynxOS */
190 void sethostent(int);
191 void endhostent(void);
193 void endnetent(void);
194 void setprotoent(int);
195 void endprotoent(void);
196 void setservent(int);
197 void endservent(void);
200 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
201 #undef PERL_EFF_ACCESS_W_OK
202 #undef PERL_EFF_ACCESS_X_OK
204 /* AIX 5.2 and below use mktime for localtime, and defines the edge case
205 * for time 0x7fffffff to be valid only in UTC. AIX 5.3 provides localtime64
206 * available in the 32bit environment, which could warrant Configure
207 * checks in the future.
210 #define LOCALTIME_EDGECASE_BROKEN
213 /* F_OK unused: if stat() cannot find it... */
215 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
216 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
217 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
218 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
219 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
222 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
223 # ifdef I_SYS_SECURITY
224 # include <sys/security.h>
228 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
229 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
230 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
233 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
234 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
235 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
239 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
241 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
242 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
243 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
246 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
247 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
248 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
251 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
253 Uid_t ruid = getuid();
254 Uid_t euid = geteuid();
255 Gid_t rgid = getgid();
256 Gid_t egid = getegid();
260 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
261 Perl_croak(aTHX_ "switching effective uid is not implemented");
264 if (setreuid(euid, ruid))
267 if (setresuid(euid, ruid, (Uid_t)-1))
270 Perl_croak(aTHX_ "entering effective uid failed");
273 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
274 Perl_croak(aTHX_ "switching effective gid is not implemented");
277 if (setregid(egid, rgid))
280 if (setresgid(egid, rgid, (Gid_t)-1))
283 Perl_croak(aTHX_ "entering effective gid failed");
286 res = access(path, mode);
289 if (setreuid(ruid, euid))
292 if (setresuid(ruid, euid, (Uid_t)-1))
295 Perl_croak(aTHX_ "leaving effective uid failed");
298 if (setregid(rgid, egid))
301 if (setresgid(rgid, egid, (Gid_t)-1))
304 Perl_croak(aTHX_ "leaving effective gid failed");
309 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
310 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
311 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
314 #if !defined(PERL_EFF_ACCESS_R_OK)
315 /* With it or without it: anyway you get a warning: either that
316 it is unused, or it is declared static and never defined.
319 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
323 Perl_croak(aTHX_ "switching effective uid is not implemented");
333 const char * const tmps = POPpconstx;
334 const I32 gimme = GIMME_V;
335 const char *mode = "r";
338 if (PL_op->op_private & OPpOPEN_IN_RAW)
340 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
342 fp = PerlProc_popen((char*)tmps, (char *)mode);
344 const char *type = NULL;
345 if (PL_curcop->cop_io) {
346 type = SvPV_nolen_const(PL_curcop->cop_io);
349 PerlIO_apply_layers(aTHX_ fp,mode,type);
351 if (gimme == G_VOID) {
353 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
356 else if (gimme == G_SCALAR) {
359 PL_rs = &PL_sv_undef;
360 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
361 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
369 SV * const sv = NEWSV(56, 79);
370 if (sv_gets(sv, fp, 0) == Nullch) {
374 XPUSHs(sv_2mortal(sv));
375 if (SvLEN(sv) - SvCUR(sv) > 20) {
376 SvPV_shrink_to_cur(sv);
381 STATUS_NATIVE_SET(PerlProc_pclose(fp));
382 TAINT; /* "I believe that this is not gratuitous!" */
385 STATUS_NATIVE_SET(-1);
386 if (gimme == G_SCALAR)
397 tryAMAGICunTARGET(iter, -1);
399 /* Note that we only ever get here if File::Glob fails to load
400 * without at the same time croaking, for some reason, or if
401 * perl was built with PERL_EXTERNAL_GLOB */
408 * The external globbing program may use things we can't control,
409 * so for security reasons we must assume the worst.
412 taint_proper(PL_no_security, "glob");
416 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
417 PL_last_in_gv = (GV*)*PL_stack_sp--;
419 SAVESPTR(PL_rs); /* This is not permanent, either. */
420 PL_rs = sv_2mortal(newSVpvn("\000", 1));
423 *SvPVX(PL_rs) = '\n';
427 result = do_readline();
434 PL_last_in_gv = cGVOP_gv;
435 return do_readline();
444 if (SP - MARK != 1) {
446 do_join(TARG, &PL_sv_no, MARK, SP);
453 tmps = SvPV_const(tmpsv, len);
454 if ((!tmps || !len) && PL_errgv) {
455 SV * const error = ERRSV;
456 SvUPGRADE(error, SVt_PV);
457 if (SvPOK(error) && SvCUR(error))
458 sv_catpv(error, "\t...caught");
460 tmps = SvPV_const(tmpsv, len);
463 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
465 Perl_warn(aTHX_ "%"SVf, tmpsv);
477 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
479 if (SP - MARK != 1) {
481 do_join(TARG, &PL_sv_no, MARK, SP);
483 tmps = SvPV_const(tmpsv, len);
489 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
493 SvUPGRADE(error, SVt_PV);
494 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
496 SvSetSV(error,tmpsv);
497 else if (sv_isobject(error)) {
498 HV *stash = SvSTASH(SvRV(error));
499 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
501 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
502 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
509 call_sv((SV*)GvCV(gv),
510 G_SCALAR|G_EVAL|G_KEEPERR);
511 sv_setsv(error,*PL_stack_sp--);
517 if (SvPOK(error) && SvCUR(error))
518 sv_catpv(error, "\t...propagated");
520 tmps = SvPV_const(tmpsv, len);
524 tmpsv = sv_2mortal(newSVpvn("Died", 4));
526 DIE(aTHX_ "%"SVf, tmpsv);
546 DIE(aTHX_ PL_no_usym, "filehandle");
547 if ((io = GvIOp(gv)))
548 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
550 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
551 /* Method's args are same as ours ... */
552 /* ... except handle is replaced by the object */
553 *MARK-- = SvTIED_obj((SV*)io, mg);
557 call_method("OPEN", G_SCALAR);
570 tmps = SvPV_const(sv, len);
571 ok = do_openn(gv, (char *)tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
574 PUSHi( (I32)PL_forkprocess );
575 else if (PL_forkprocess == 0) /* we are a new child */
594 if (gv && (io = GvIO(gv))
595 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
598 XPUSHs(SvTIED_obj((SV*)io, mg));
601 call_method("CLOSE", G_SCALAR);
607 PUSHs(boolSV(do_close(gv, TRUE)));
627 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
628 DIE(aTHX_ PL_no_usym, "filehandle");
633 do_close(rgv, FALSE);
635 do_close(wgv, FALSE);
637 if (PerlProc_pipe(fd) < 0)
640 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
641 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
642 IoOFP(rstio) = IoIFP(rstio);
643 IoIFP(wstio) = IoOFP(wstio);
644 IoTYPE(rstio) = IoTYPE_RDONLY;
645 IoTYPE(wstio) = IoTYPE_WRONLY;
647 if (!IoIFP(rstio) || !IoOFP(wstio)) {
648 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
649 else PerlLIO_close(fd[0]);
650 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
651 else PerlLIO_close(fd[1]);
654 #if defined(HAS_FCNTL) && defined(F_SETFD)
655 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
656 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
663 DIE(aTHX_ PL_no_func, "pipe");
679 if (gv && (io = GvIO(gv))
680 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
683 XPUSHs(SvTIED_obj((SV*)io, mg));
686 call_method("FILENO", G_SCALAR);
692 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
693 /* Can't do this because people seem to do things like
694 defined(fileno($foo)) to check whether $foo is a valid fh.
695 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
696 report_evil_fh(gv, io, PL_op->op_type);
701 PUSHi(PerlIO_fileno(fp));
713 anum = PerlLIO_umask(0);
714 (void)PerlLIO_umask(anum);
717 anum = PerlLIO_umask(POPi);
718 TAINT_PROPER("umask");
721 /* Only DIE if trying to restrict permissions on "user" (self).
722 * Otherwise it's harmless and more useful to just return undef
723 * since 'group' and 'other' concepts probably don't exist here. */
724 if (MAXARG >= 1 && (POPi & 0700))
725 DIE(aTHX_ "umask not implemented");
726 XPUSHs(&PL_sv_undef);
748 if (gv && (io = GvIO(gv))
749 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
752 XPUSHs(SvTIED_obj((SV*)io, mg));
757 call_method("BINMODE", G_SCALAR);
764 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
765 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
766 report_evil_fh(gv, io, PL_op->op_type);
767 SETERRNO(EBADF,RMS_IFI);
772 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
773 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
774 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
775 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
776 mode_from_discipline(discp),
777 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
798 const I32 markoff = MARK - PL_stack_base;
799 const char *methname;
800 int how = PERL_MAGIC_tied;
804 switch(SvTYPE(varsv)) {
806 methname = "TIEHASH";
807 HvEITER_set((HV *)varsv, 0);
810 methname = "TIEARRAY";
813 #ifdef GV_UNIQUE_CHECK
814 if (GvUNIQUE((GV*)varsv)) {
815 Perl_croak(aTHX_ "Attempt to tie unique GV");
818 methname = "TIEHANDLE";
819 how = PERL_MAGIC_tiedscalar;
820 /* For tied filehandles, we apply tiedscalar magic to the IO
821 slot of the GP rather than the GV itself. AMS 20010812 */
823 GvIOp(varsv) = newIO();
824 varsv = (SV *)GvIOp(varsv);
827 methname = "TIESCALAR";
828 how = PERL_MAGIC_tiedscalar;
832 if (sv_isobject(*MARK)) {
834 PUSHSTACKi(PERLSI_MAGIC);
836 EXTEND(SP,(I32)items);
840 call_method(methname, G_SCALAR);
843 /* Not clear why we don't call call_method here too.
844 * perhaps to get different error message ?
846 stash = gv_stashsv(*MARK, FALSE);
847 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
848 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
852 PUSHSTACKi(PERLSI_MAGIC);
854 EXTEND(SP,(I32)items);
858 call_sv((SV*)GvCV(gv), G_SCALAR);
864 if (sv_isobject(sv)) {
865 sv_unmagic(varsv, how);
866 /* Croak if a self-tie on an aggregate is attempted. */
867 if (varsv == SvRV(sv) &&
868 (SvTYPE(varsv) == SVt_PVAV ||
869 SvTYPE(varsv) == SVt_PVHV))
871 "Self-ties of arrays and hashes are not supported");
872 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
875 SP = PL_stack_base + markoff;
885 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
886 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
888 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
891 if ((mg = SvTIED_mg(sv, how))) {
892 SV * const obj = SvRV(SvTIED_obj(sv, mg));
896 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
897 isGV(gv) && (cv = GvCV(gv))) {
899 XPUSHs(SvTIED_obj((SV*)gv, mg));
900 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
903 call_sv((SV *)cv, G_VOID);
907 else if (ckWARN(WARN_UNTIE)) {
908 if (mg && SvREFCNT(obj) > 1)
909 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
910 "untie attempted while %"UVuf" inner references still exist",
911 (UV)SvREFCNT(obj) - 1 ) ;
915 sv_unmagic(sv, how) ;
924 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
925 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
927 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
930 if ((mg = SvTIED_mg(sv, how))) {
931 SV *osv = SvTIED_obj(sv, mg);
932 if (osv == mg->mg_obj)
933 osv = sv_mortalcopy(osv);
948 HV * const hv = (HV*)POPs;
950 sv = sv_mortalcopy(&PL_sv_no);
951 sv_setpv(sv, "AnyDBM_File");
952 stash = gv_stashsv(sv, FALSE);
953 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
955 require_pv("AnyDBM_File.pm");
957 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
958 DIE(aTHX_ "No dbm on this machine");
968 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
970 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
973 call_sv((SV*)GvCV(gv), G_SCALAR);
976 if (!sv_isobject(TOPs)) {
981 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
984 call_sv((SV*)GvCV(gv), G_SCALAR);
988 if (sv_isobject(TOPs)) {
989 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
990 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1012 struct timeval timebuf;
1013 struct timeval *tbuf = &timebuf;
1016 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1021 # if BYTEORDER & 0xf0000
1022 # define ORDERBYTE (0x88888888 - BYTEORDER)
1024 # define ORDERBYTE (0x4444 - BYTEORDER)
1030 for (i = 1; i <= 3; i++) {
1032 if (SvOK(sv) && SvREADONLY(sv)) {
1034 sv_force_normal_flags(sv, 0);
1036 DIE(aTHX_ PL_no_modify);
1045 /* little endians can use vecs directly */
1046 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1053 masksize = NFDBITS / NBBY;
1055 masksize = sizeof(long); /* documented int, everyone seems to use long */
1057 Zero(&fd_sets[0], 4, char*);
1060 # if SELECT_MIN_BITS == 1
1061 growsize = sizeof(fd_set);
1063 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1064 # undef SELECT_MIN_BITS
1065 # define SELECT_MIN_BITS __FD_SETSIZE
1067 /* If SELECT_MIN_BITS is greater than one we most probably will want
1068 * to align the sizes with SELECT_MIN_BITS/8 because for example
1069 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1070 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1071 * on (sets/tests/clears bits) is 32 bits. */
1072 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1080 timebuf.tv_sec = (long)value;
1081 value -= (NV)timebuf.tv_sec;
1082 timebuf.tv_usec = (long)(value * 1000000.0);
1085 tbuf = Null(struct timeval*);
1087 for (i = 1; i <= 3; i++) {
1093 else if (!SvPOK(sv))
1094 SvPV_force_nolen(sv); /* force string conversion */
1097 Sv_Grow(sv, growsize);
1101 while (++j <= growsize) {
1105 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1107 New(403, fd_sets[i], growsize, char);
1108 for (offset = 0; offset < growsize; offset += masksize) {
1109 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1110 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1113 fd_sets[i] = SvPVX(sv);
1117 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1118 /* Can't make just the (void*) conditional because that would be
1119 * cpp #if within cpp macro, and not all compilers like that. */
1120 nfound = PerlSock_select(
1122 (Select_fd_set_t) fd_sets[1],
1123 (Select_fd_set_t) fd_sets[2],
1124 (Select_fd_set_t) fd_sets[3],
1125 (void*) tbuf); /* Workaround for compiler bug. */
1127 nfound = PerlSock_select(
1129 (Select_fd_set_t) fd_sets[1],
1130 (Select_fd_set_t) fd_sets[2],
1131 (Select_fd_set_t) fd_sets[3],
1134 for (i = 1; i <= 3; i++) {
1137 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1139 for (offset = 0; offset < growsize; offset += masksize) {
1140 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1141 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1143 Safefree(fd_sets[i]);
1150 PUSHs(&PL_sv_undef);
1153 if (GIMME == G_ARRAY && tbuf) {
1154 value = (NV)(timebuf.tv_sec) +
1155 (NV)(timebuf.tv_usec) / 1000000.0;
1156 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1157 sv_setnv(sv, value);
1161 DIE(aTHX_ "select not implemented");
1166 Perl_setdefout(pTHX_ GV *gv)
1169 (void)SvREFCNT_inc(gv);
1171 SvREFCNT_dec(PL_defoutgv);
1181 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1183 egv = GvEGV(PL_defoutgv);
1188 XPUSHs(&PL_sv_undef);
1190 GV ** const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1191 if (gvp && *gvp == egv) {
1192 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1196 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1201 if (!GvIO(newdefout))
1202 gv_IOadd(newdefout);
1203 setdefout(newdefout);
1214 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
1216 if (gv && (io = GvIO(gv))
1217 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1219 const I32 gimme = GIMME_V;
1221 XPUSHs(SvTIED_obj((SV*)io, mg));
1224 call_method("GETC", gimme);
1227 if (gimme == G_SCALAR)
1228 SvSetMagicSV_nosteal(TARG, TOPs);
1231 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1232 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1233 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1234 report_evil_fh(gv, io, PL_op->op_type);
1235 SETERRNO(EBADF,RMS_IFI);
1239 sv_setpvn(TARG, " ", 1);
1240 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1241 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1242 /* Find out how many bytes the char needs */
1243 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1246 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1247 SvCUR_set(TARG,1+len);
1257 return pp_sysread();
1261 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1264 register PERL_CONTEXT *cx;
1265 const I32 gimme = GIMME_V;
1270 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1272 cx->blk_sub.retop = retop;
1274 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
1276 setdefout(gv); /* locally select filehandle so $% et al work */
1308 SV * const tmpsv = sv_newmortal();
1310 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1311 name = SvPV_nolen_const(tmpsv);
1313 DIE(aTHX_ "Undefined format \"%s\" called", name);
1315 DIE(aTHX_ "Not a format reference");
1318 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1320 IoFLAGS(io) &= ~IOf_DIDTOP;
1321 return doform(cv,gv,PL_op->op_next);
1327 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1328 register IO * const io = GvIOp(gv);
1329 PerlIO * const ofp = IoOFP(io);
1333 register PERL_CONTEXT *cx;
1335 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1336 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1339 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1340 PL_formtarget != PL_toptarget)
1344 if (!IoTOP_GV(io)) {
1347 if (!IoTOP_NAME(io)) {
1349 if (!IoFMT_NAME(io))
1350 IoFMT_NAME(io) = savepv(GvNAME(gv));
1351 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1352 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1353 if ((topgv && GvFORM(topgv)) ||
1354 !gv_fetchpv("top",FALSE,SVt_PVFM))
1355 IoTOP_NAME(io) = savesvpv(topname);
1357 IoTOP_NAME(io) = savepvn("top", 3);
1359 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1360 if (!topgv || !GvFORM(topgv)) {
1361 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1364 IoTOP_GV(io) = topgv;
1366 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1367 I32 lines = IoLINES_LEFT(io);
1368 const char *s = SvPVX_const(PL_formtarget);
1369 if (lines <= 0) /* Yow, header didn't even fit!!! */
1371 while (lines-- > 0) {
1372 s = strchr(s, '\n');
1378 const STRLEN save = SvCUR(PL_formtarget);
1379 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1380 do_print(PL_formtarget, ofp);
1381 SvCUR_set(PL_formtarget, save);
1382 sv_chop(PL_formtarget, s);
1383 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1386 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1387 do_print(PL_formfeed, ofp);
1388 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1390 PL_formtarget = PL_toptarget;
1391 IoFLAGS(io) |= IOf_DIDTOP;
1394 DIE(aTHX_ "bad top format reference");
1397 SV * const sv = sv_newmortal();
1399 gv_efullname4(sv, fgv, Nullch, FALSE);
1400 name = SvPV_nolen_const(sv);
1402 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1406 DIE(aTHX_ "Undefined top format called");
1409 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1410 return doform(cv,gv,PL_op);
1414 POPBLOCK(cx,PL_curpm);
1420 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1422 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1423 else if (ckWARN(WARN_CLOSED))
1424 report_evil_fh(gv, io, PL_op->op_type);
1429 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1430 if (ckWARN(WARN_IO))
1431 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1433 if (!do_print(PL_formtarget, fp))
1436 FmLINES(PL_formtarget) = 0;
1437 SvCUR_set(PL_formtarget, 0);
1438 *SvEND(PL_formtarget) = '\0';
1439 if (IoFLAGS(io) & IOf_FLUSH)
1440 (void)PerlIO_flush(fp);
1445 PL_formtarget = PL_bodytarget;
1447 PERL_UNUSED_VAR(newsp);
1448 PERL_UNUSED_VAR(gimme);
1449 return cx->blk_sub.retop;
1454 dVAR; dSP; dMARK; dORIGMARK;
1461 if (PL_op->op_flags & OPf_STACKED)
1466 if (gv && (io = GvIO(gv))
1467 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1469 if (MARK == ORIGMARK) {
1472 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1476 *MARK = SvTIED_obj((SV*)io, mg);
1479 call_method("PRINTF", G_SCALAR);
1482 MARK = ORIGMARK + 1;
1489 if (!(io = GvIO(gv))) {
1490 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1491 report_evil_fh(gv, io, PL_op->op_type);
1492 SETERRNO(EBADF,RMS_IFI);
1495 else if (!(fp = IoOFP(io))) {
1496 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1498 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1499 else if (ckWARN(WARN_CLOSED))
1500 report_evil_fh(gv, io, PL_op->op_type);
1502 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1506 do_sprintf(sv, SP - MARK, MARK + 1);
1507 if (!do_print(sv, fp))
1510 if (IoFLAGS(io) & IOf_FLUSH)
1511 if (PerlIO_flush(fp) == EOF)
1522 PUSHs(&PL_sv_undef);
1529 const int perm = (MAXARG > 3) ? POPi : 0666;
1530 const int mode = POPi;
1531 SV * const sv = POPs;
1532 GV * const gv = (GV *)POPs;
1535 /* Need TIEHANDLE method ? */
1536 const char * const tmps = SvPV_const(sv, len);
1537 /* FIXME? do_open should do const */
1538 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
1539 IoLINES(GvIOp(gv)) = 0;
1543 PUSHs(&PL_sv_undef);
1550 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1556 Sock_size_t bufsize;
1564 bool charstart = FALSE;
1565 STRLEN charskip = 0;
1568 GV * const gv = (GV*)*++MARK;
1569 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1570 && gv && (io = GvIO(gv)) )
1572 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1576 *MARK = SvTIED_obj((SV*)io, mg);
1578 call_method("READ", G_SCALAR);
1592 sv_setpvn(bufsv, "", 0);
1593 length = SvIVx(*++MARK);
1596 offset = SvIVx(*++MARK);
1600 if (!io || !IoIFP(io)) {
1601 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1602 report_evil_fh(gv, io, PL_op->op_type);
1603 SETERRNO(EBADF,RMS_IFI);
1606 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1607 buffer = SvPVutf8_force(bufsv, blen);
1608 /* UTF-8 may not have been set if they are all low bytes */
1613 buffer = SvPV_force(bufsv, blen);
1614 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1617 DIE(aTHX_ "Negative length");
1625 if (PL_op->op_type == OP_RECV) {
1626 char namebuf[MAXPATHLEN];
1627 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1628 bufsize = sizeof (struct sockaddr_in);
1630 bufsize = sizeof namebuf;
1632 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1636 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1637 /* 'offset' means 'flags' here */
1638 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1639 (struct sockaddr *)namebuf, &bufsize);
1643 /* Bogus return without padding */
1644 bufsize = sizeof (struct sockaddr_in);
1646 SvCUR_set(bufsv, count);
1647 *SvEND(bufsv) = '\0';
1648 (void)SvPOK_only(bufsv);
1652 /* This should not be marked tainted if the fp is marked clean */
1653 if (!(IoFLAGS(io) & IOf_UNTAINT))
1654 SvTAINTED_on(bufsv);
1656 sv_setpvn(TARG, namebuf, bufsize);
1661 if (PL_op->op_type == OP_RECV)
1662 DIE(aTHX_ PL_no_sock_func, "recv");
1664 if (DO_UTF8(bufsv)) {
1665 /* offset adjust in characters not bytes */
1666 blen = sv_len_utf8(bufsv);
1669 if (-offset > (int)blen)
1670 DIE(aTHX_ "Offset outside string");
1673 if (DO_UTF8(bufsv)) {
1674 /* convert offset-as-chars to offset-as-bytes */
1675 if (offset >= (int)blen)
1676 offset += SvCUR(bufsv) - blen;
1678 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1681 bufsize = SvCUR(bufsv);
1682 /* Allocating length + offset + 1 isn't perfect in the case of reading
1683 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1685 (should be 2 * length + offset + 1, or possibly something longer if
1686 PL_encoding is true) */
1687 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1688 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1689 Zero(buffer+bufsize, offset-bufsize, char);
1691 buffer = buffer + offset;
1693 read_target = bufsv;
1695 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1696 concatenate it to the current buffer. */
1698 /* Truncate the existing buffer to the start of where we will be
1700 SvCUR_set(bufsv, offset);
1702 read_target = sv_newmortal();
1703 SvUPGRADE(read_target, SVt_PV);
1704 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1707 if (PL_op->op_type == OP_SYSREAD) {
1708 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1709 if (IoTYPE(io) == IoTYPE_SOCKET) {
1710 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1716 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1721 #ifdef HAS_SOCKET__bad_code_maybe
1722 if (IoTYPE(io) == IoTYPE_SOCKET) {
1723 char namebuf[MAXPATHLEN];
1724 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1725 bufsize = sizeof (struct sockaddr_in);
1727 bufsize = sizeof namebuf;
1729 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1730 (struct sockaddr *)namebuf, &bufsize);
1735 count = PerlIO_read(IoIFP(io), buffer, length);
1736 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1737 if (count == 0 && PerlIO_error(IoIFP(io)))
1741 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1742 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1745 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1746 *SvEND(read_target) = '\0';
1747 (void)SvPOK_only(read_target);
1748 if (fp_utf8 && !IN_BYTES) {
1749 /* Look at utf8 we got back and count the characters */
1750 const char *bend = buffer + count;
1751 while (buffer < bend) {
1753 skip = UTF8SKIP(buffer);
1756 if (buffer - charskip + skip > bend) {
1757 /* partial character - try for rest of it */
1758 length = skip - (bend-buffer);
1759 offset = bend - SvPVX_const(bufsv);
1771 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1772 provided amount read (count) was what was requested (length)
1774 if (got < wanted && count == length) {
1775 length = wanted - got;
1776 offset = bend - SvPVX_const(bufsv);
1779 /* return value is character count */
1783 else if (buffer_utf8) {
1784 /* Let svcatsv upgrade the bytes we read in to utf8.
1785 The buffer is a mortal so will be freed soon. */
1786 sv_catsv_nomg(bufsv, read_target);
1789 /* This should not be marked tainted if the fp is marked clean */
1790 if (!(IoFLAGS(io) & IOf_UNTAINT))
1791 SvTAINTED_on(bufsv);
1804 const int items = (SP - PL_stack_base) - TOPMARK;
1808 sv = sv_2mortal(newSViv(sv_len(*SP)));
1817 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1828 if (PL_op->op_type == OP_SYSWRITE
1829 && gv && (io = GvIO(gv))
1830 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1835 *MARK = SvTIED_obj((SV*)io, mg);
1837 call_method("WRITE", G_SCALAR);
1848 #if Size_t_size > IVSIZE
1849 length = (Size_t)SvNVx(*++MARK);
1851 length = (Size_t)SvIVx(*++MARK);
1853 if ((SSize_t)length < 0)
1854 DIE(aTHX_ "Negative length");
1857 if (!io || !IoIFP(io)) {
1859 if (ckWARN(WARN_CLOSED))
1860 report_evil_fh(gv, io, PL_op->op_type);
1861 SETERRNO(EBADF,RMS_IFI);
1865 if (PerlIO_isutf8(IoIFP(io))) {
1866 if (!SvUTF8(bufsv)) {
1867 bufsv = sv_2mortal(newSVsv(bufsv));
1868 buffer = sv_2pvutf8(bufsv, &blen);
1870 buffer = SvPV_const(bufsv, blen);
1873 if (DO_UTF8(bufsv)) {
1874 /* Not modifying source SV, so making a temporary copy. */
1875 bufsv = sv_2mortal(newSVsv(bufsv));
1876 sv_utf8_downgrade(bufsv, FALSE);
1878 buffer = SvPV_const(bufsv, blen);
1881 if (PL_op->op_type == OP_SYSWRITE) {
1883 if (DO_UTF8(bufsv)) {
1884 /* length and offset are in chars */
1885 blen = sv_len_utf8(bufsv);
1888 offset = SvIVx(*++MARK);
1890 if (-offset > (IV)blen)
1891 DIE(aTHX_ "Offset outside string");
1893 } else if (offset >= (IV)blen && blen > 0)
1894 DIE(aTHX_ "Offset outside string");
1897 if (length > blen - offset)
1898 length = blen - offset;
1899 if (DO_UTF8(bufsv)) {
1900 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1901 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1904 buffer = buffer+offset;
1906 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1907 if (IoTYPE(io) == IoTYPE_SOCKET) {
1908 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1914 /* See the note at doio.c:do_print about filesize limits. --jhi */
1915 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1920 else if (SP > MARK) {
1922 char * const sockbuf = SvPVx(*++MARK, mlen);
1923 /* length is really flags */
1924 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1925 length, (struct sockaddr *)sockbuf, mlen);
1928 /* length is really flags */
1929 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1932 DIE(aTHX_ PL_no_sock_func, "send");
1938 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1939 #if Size_t_size > IVSIZE
1953 return pp_sysread();
1964 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1966 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1968 if (io && !IoIFP(io)) {
1969 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1971 IoFLAGS(io) &= ~IOf_START;
1972 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1973 sv_setpvn(GvSV(gv), "-", 1);
1974 SvSETMAGIC(GvSV(gv));
1976 else if (!nextargv(gv))
1981 gv = PL_last_in_gv; /* eof */
1984 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1986 if (gv && (io = GvIO(gv))
1987 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1990 XPUSHs(SvTIED_obj((SV*)io, mg));
1993 call_method("EOF", G_SCALAR);
1999 PUSHs(boolSV(!gv || do_eof(gv)));
2013 gv = PL_last_in_gv = (GV*)POPs;
2015 if (gv && (io = GvIO(gv))
2016 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2019 XPUSHs(SvTIED_obj((SV*)io, mg));
2022 call_method("TELL", G_SCALAR);
2028 #if LSEEKSIZE > IVSIZE
2029 PUSHn( do_tell(gv) );
2031 PUSHi( do_tell(gv) );
2038 return pp_sysseek();
2046 const int whence = POPi;
2047 #if LSEEKSIZE > IVSIZE
2048 Off_t offset = (Off_t)SvNVx(POPs);
2050 Off_t offset = (Off_t)SvIVx(POPs);
2054 gv = PL_last_in_gv = (GV*)POPs;
2056 if (gv && (io = GvIO(gv))
2057 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2060 XPUSHs(SvTIED_obj((SV*)io, mg));
2061 #if LSEEKSIZE > IVSIZE
2062 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2064 XPUSHs(sv_2mortal(newSViv(offset)));
2066 XPUSHs(sv_2mortal(newSViv(whence)));
2069 call_method("SEEK", G_SCALAR);
2075 if (PL_op->op_type == OP_SEEK)
2076 PUSHs(boolSV(do_seek(gv, offset, whence)));
2078 Off_t sought = do_sysseek(gv, offset, whence);
2080 PUSHs(&PL_sv_undef);
2083 #if LSEEKSIZE > IVSIZE
2088 : newSVpvn(zero_but_true, ZBTLEN);
2089 PUSHs(sv_2mortal(sv));
2098 /* There seems to be no consensus on the length type of truncate()
2099 * and ftruncate(), both off_t and size_t have supporters. In
2100 * general one would think that when using large files, off_t is
2101 * at least as wide as size_t, so using an off_t should be okay. */
2102 /* XXX Configure probe for the length type of *truncate() needed XXX */
2105 #if Off_t_size > IVSIZE
2110 /* Checking for length < 0 is problematic as the type might or
2111 * might not be signed: if it is not, clever compilers will moan. */
2112 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2119 if (PL_op->op_flags & OPf_SPECIAL) {
2120 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2129 TAINT_PROPER("truncate");
2130 if (!(fp = IoIFP(io))) {
2136 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2138 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2148 if (SvTYPE(sv) == SVt_PVGV) {
2149 tmpgv = (GV*)sv; /* *main::FRED for example */
2150 goto do_ftruncate_gv;
2152 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2153 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2154 goto do_ftruncate_gv;
2156 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2157 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2158 goto do_ftruncate_io;
2161 name = SvPV_nolen_const(sv);
2162 TAINT_PROPER("truncate");
2164 if (truncate(name, len) < 0)
2170 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2173 if (my_chsize(tmpfd, len) < 0)
2175 PerlLIO_close(tmpfd);
2184 SETERRNO(EBADF,RMS_IFI);
2198 const unsigned int func = POPu;
2199 const int optype = PL_op->op_type;
2203 IO *io = gv ? GvIOn(gv) : 0;
2205 if (!io || !argsv || !IoIFP(io)) {
2206 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2207 report_evil_fh(gv, io, PL_op->op_type);
2208 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2212 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2215 s = SvPV_force(argsv, len);
2216 need = IOCPARM_LEN(func);
2218 s = Sv_Grow(argsv, need + 1);
2219 SvCUR_set(argsv, need);
2222 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2225 retval = SvIV(argsv);
2226 s = INT2PTR(char*,retval); /* ouch */
2229 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2231 if (optype == OP_IOCTL)
2233 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2235 DIE(aTHX_ "ioctl is not implemented");
2239 DIE(aTHX_ "fcntl is not implemented");
2241 #if defined(OS2) && defined(__EMX__)
2242 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2244 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2248 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2250 if (s[SvCUR(argsv)] != 17)
2251 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2253 s[SvCUR(argsv)] = 0; /* put our null back */
2254 SvSETMAGIC(argsv); /* Assume it has changed */
2263 PUSHp(zero_but_true, ZBTLEN);
2284 if (gv && (io = GvIO(gv)))
2291 (void)PerlIO_flush(fp);
2292 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2295 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2296 report_evil_fh(gv, io, PL_op->op_type);
2298 SETERRNO(EBADF,RMS_IFI);
2303 DIE(aTHX_ PL_no_func, "flock()");
2315 int protocol = POPi;
2321 io = gv ? GvIOn(gv) : NULL;
2324 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2325 report_evil_fh(gv, io, PL_op->op_type);
2327 do_close(gv, FALSE);
2328 SETERRNO(EBADF,LIB_INVARG);
2333 do_close(gv, FALSE);
2335 TAINT_PROPER("socket");
2336 fd = PerlSock_socket(domain, type, protocol);
2339 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2340 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2341 IoTYPE(io) = IoTYPE_SOCKET;
2342 if (!IoIFP(io) || !IoOFP(io)) {
2343 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2344 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2345 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2348 #if defined(HAS_FCNTL) && defined(F_SETFD)
2349 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2353 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2358 DIE(aTHX_ PL_no_sock_func, "socket");
2364 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2370 int protocol = POPi;
2377 io1 = gv1 ? GvIOn(gv1) : NULL;
2378 io2 = gv2 ? GvIOn(gv2) : NULL;
2379 if (!gv1 || !gv2 || !io1 || !io2) {
2380 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2382 report_evil_fh(gv1, io1, PL_op->op_type);
2384 report_evil_fh(gv1, io2, PL_op->op_type);
2387 do_close(gv1, FALSE);
2389 do_close(gv2, FALSE);
2394 do_close(gv1, FALSE);
2396 do_close(gv2, FALSE);
2398 TAINT_PROPER("socketpair");
2399 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2401 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2402 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2403 IoTYPE(io1) = IoTYPE_SOCKET;
2404 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2405 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2406 IoTYPE(io2) = IoTYPE_SOCKET;
2407 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2408 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2409 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2410 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2411 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2412 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2413 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2416 #if defined(HAS_FCNTL) && defined(F_SETFD)
2417 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2418 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2423 DIE(aTHX_ PL_no_sock_func, "socketpair");
2431 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2432 extern void GETPRIVMODE();
2433 extern void GETUSERMODE();
2436 /* OK, so on what platform does bind modify addr? */
2439 register IO *io = GvIOn(gv);
2443 int mpeprivmode = 0;
2446 if (!io || !IoIFP(io))
2449 addr = SvPV_const(addrsv, len);
2450 TAINT_PROPER("bind");
2451 #ifdef MPE /* Deal with MPE bind() peculiarities */
2452 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2453 /* The address *MUST* stupidly be zero. */
2454 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2455 /* PRIV mode is required to bind() to ports < 1024. */
2456 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2457 ((struct sockaddr_in *)addr)->sin_port > 0) {
2458 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2463 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2464 (struct sockaddr *)addr, len) >= 0)
2467 #ifdef MPE /* Switch back to USER mode */
2478 if (ckWARN(WARN_CLOSED))
2479 report_evil_fh(gv, io, PL_op->op_type);
2480 SETERRNO(EBADF,SS_IVCHAN);
2483 DIE(aTHX_ PL_no_sock_func, "bind");
2494 register IO *io = GvIOn(gv);
2497 if (!io || !IoIFP(io))
2500 addr = SvPV_const(addrsv, len);
2501 TAINT_PROPER("connect");
2502 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2508 if (ckWARN(WARN_CLOSED))
2509 report_evil_fh(gv, io, PL_op->op_type);
2510 SETERRNO(EBADF,SS_IVCHAN);
2513 DIE(aTHX_ PL_no_sock_func, "connect");
2523 register IO *io = gv ? GvIOn(gv) : NULL;
2525 if (!gv || !io || !IoIFP(io))
2528 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2534 if (ckWARN(WARN_CLOSED))
2535 report_evil_fh(gv, io, PL_op->op_type);
2536 SETERRNO(EBADF,SS_IVCHAN);
2539 DIE(aTHX_ PL_no_sock_func, "listen");
2551 char namebuf[MAXPATHLEN];
2552 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2553 Sock_size_t len = sizeof (struct sockaddr_in);
2555 Sock_size_t len = sizeof namebuf;
2568 if (!gstio || !IoIFP(gstio))
2572 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2576 do_close(ngv, FALSE);
2577 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2578 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2579 IoTYPE(nstio) = IoTYPE_SOCKET;
2580 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2581 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2582 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2583 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2586 #if defined(HAS_FCNTL) && defined(F_SETFD)
2587 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2591 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2592 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2594 #ifdef __SCO_VERSION__
2595 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2598 PUSHp(namebuf, len);
2602 if (ckWARN(WARN_CLOSED))
2603 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2604 SETERRNO(EBADF,SS_IVCHAN);
2610 DIE(aTHX_ PL_no_sock_func, "accept");
2620 register IO *io = GvIOn(gv);
2622 if (!io || !IoIFP(io))
2625 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2629 if (ckWARN(WARN_CLOSED))
2630 report_evil_fh(gv, io, PL_op->op_type);
2631 SETERRNO(EBADF,SS_IVCHAN);
2634 DIE(aTHX_ PL_no_sock_func, "shutdown");
2641 return pp_ssockopt();
2643 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2651 int optype = PL_op->op_type;
2654 unsigned int optname;
2660 if (optype == OP_GSOCKOPT)
2661 sv = sv_2mortal(NEWSV(22, 257));
2664 optname = (unsigned int) POPi;
2665 lvl = (unsigned int) POPi;
2669 if (!io || !IoIFP(io))
2672 fd = PerlIO_fileno(IoIFP(io));
2676 (void)SvPOK_only(sv);
2680 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2691 buf = SvPV_const(sv, l);
2695 aint = (int)SvIV(sv);
2696 buf = (const char*)&aint;
2699 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2708 if (ckWARN(WARN_CLOSED))
2709 report_evil_fh(gv, io, optype);
2710 SETERRNO(EBADF,SS_IVCHAN);
2715 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2722 return pp_getpeername();
2724 DIE(aTHX_ PL_no_sock_func, "getsockname");
2732 int optype = PL_op->op_type;
2736 register IO *io = GvIOn(gv);
2739 if (!io || !IoIFP(io))
2742 sv = sv_2mortal(NEWSV(22, 257));
2743 (void)SvPOK_only(sv);
2747 fd = PerlIO_fileno(IoIFP(io));
2749 case OP_GETSOCKNAME:
2750 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2753 case OP_GETPEERNAME:
2754 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2756 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2758 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";
2759 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2760 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2761 !memcmp((char *)SvPVX_const(sv) + sizeof(u_short), nowhere,
2762 sizeof(u_short) + sizeof(struct in_addr))) {
2769 #ifdef BOGUS_GETNAME_RETURN
2770 /* Interactive Unix, getpeername() and getsockname()
2771 does not return valid namelen */
2772 if (len == BOGUS_GETNAME_RETURN)
2773 len = sizeof(struct sockaddr);
2781 if (ckWARN(WARN_CLOSED))
2782 report_evil_fh(gv, io, optype);
2783 SETERRNO(EBADF,SS_IVCHAN);
2788 DIE(aTHX_ PL_no_sock_func, "getpeername");
2806 if (PL_op->op_flags & OPf_REF) {
2808 if (PL_op->op_type == OP_LSTAT) {
2809 if (gv != PL_defgv) {
2810 if (ckWARN(WARN_IO))
2811 Perl_warner(aTHX_ packWARN(WARN_IO),
2812 "lstat() on filehandle %s", GvENAME(gv));
2813 } else if (PL_laststype != OP_LSTAT)
2814 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2818 if (gv != PL_defgv) {
2819 PL_laststype = OP_STAT;
2821 sv_setpvn(PL_statname, "", 0);
2822 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2823 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2825 if (PL_laststatval < 0) {
2826 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2827 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2833 if (SvTYPE(sv) == SVt_PVGV) {
2837 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2839 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2840 Perl_warner(aTHX_ packWARN(WARN_IO),
2841 "lstat() on filehandle %s", GvENAME(gv));
2844 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2846 PL_laststype = PL_op->op_type;
2847 if (PL_op->op_type == OP_LSTAT)
2848 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2850 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2851 if (PL_laststatval < 0) {
2852 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2853 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2859 if (gimme != G_ARRAY) {
2860 if (gimme != G_VOID)
2861 XPUSHs(boolSV(max));
2867 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2868 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2869 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2870 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2871 #if Uid_t_size > IVSIZE
2872 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2874 # if Uid_t_sign <= 0
2875 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2877 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2880 #if Gid_t_size > IVSIZE
2881 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2883 # if Gid_t_sign <= 0
2884 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2886 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2889 #ifdef USE_STAT_RDEV
2890 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2892 PUSHs(sv_2mortal(newSVpvn("", 0)));
2894 #if Off_t_size > IVSIZE
2895 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2897 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2900 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2901 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2902 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2904 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2905 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2906 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2908 #ifdef USE_STAT_BLOCKS
2909 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2910 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2912 PUSHs(sv_2mortal(newSVpvn("", 0)));
2913 PUSHs(sv_2mortal(newSVpvn("", 0)));
2919 /* This macro is used by the stacked filetest operators :
2920 * if the previous filetest failed, short-circuit and pass its value.
2921 * Else, discard it from the stack and continue. --rgs
2923 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2924 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2925 else { (void)POPs; PUTBACK; } \
2932 STACKED_FTEST_CHECK;
2933 #if defined(HAS_ACCESS) && defined(R_OK)
2934 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2935 result = access(POPpx, R_OK);
2950 if (cando(S_IRUSR, 0, &PL_statcache))
2959 STACKED_FTEST_CHECK;
2960 #if defined(HAS_ACCESS) && defined(W_OK)
2961 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2962 result = access(POPpx, W_OK);
2977 if (cando(S_IWUSR, 0, &PL_statcache))
2986 STACKED_FTEST_CHECK;
2987 #if defined(HAS_ACCESS) && defined(X_OK)
2988 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2989 result = access(POPpx, X_OK);
3004 if (cando(S_IXUSR, 0, &PL_statcache))
3013 STACKED_FTEST_CHECK;
3014 #ifdef PERL_EFF_ACCESS_R_OK
3015 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3016 result = PERL_EFF_ACCESS_R_OK(POPpx);
3031 if (cando(S_IRUSR, 1, &PL_statcache))
3040 STACKED_FTEST_CHECK;
3041 #ifdef PERL_EFF_ACCESS_W_OK
3042 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3043 result = PERL_EFF_ACCESS_W_OK(POPpx);
3058 if (cando(S_IWUSR, 1, &PL_statcache))
3067 STACKED_FTEST_CHECK;
3068 #ifdef PERL_EFF_ACCESS_X_OK
3069 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3070 result = PERL_EFF_ACCESS_X_OK(POPpx);
3085 if (cando(S_IXUSR, 1, &PL_statcache))
3094 STACKED_FTEST_CHECK;
3104 return pp_ftrowned();
3111 STACKED_FTEST_CHECK;
3116 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3126 STACKED_FTEST_CHECK;
3131 if (PL_statcache.st_size == 0)
3140 STACKED_FTEST_CHECK;
3145 #if Off_t_size > IVSIZE
3146 PUSHn(PL_statcache.st_size);
3148 PUSHi(PL_statcache.st_size);
3157 STACKED_FTEST_CHECK;
3162 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3170 STACKED_FTEST_CHECK;
3175 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3183 STACKED_FTEST_CHECK;
3188 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3196 STACKED_FTEST_CHECK;
3201 if (S_ISSOCK(PL_statcache.st_mode))
3210 STACKED_FTEST_CHECK;
3215 if (S_ISCHR(PL_statcache.st_mode))
3224 STACKED_FTEST_CHECK;
3229 if (S_ISBLK(PL_statcache.st_mode))
3238 STACKED_FTEST_CHECK;
3243 if (S_ISREG(PL_statcache.st_mode))
3252 STACKED_FTEST_CHECK;
3257 if (S_ISDIR(PL_statcache.st_mode))
3266 STACKED_FTEST_CHECK;
3271 if (S_ISFIFO(PL_statcache.st_mode))
3278 I32 result = my_lstat();
3282 if (S_ISLNK(PL_statcache.st_mode))
3292 STACKED_FTEST_CHECK;
3297 if (PL_statcache.st_mode & S_ISUID)
3308 STACKED_FTEST_CHECK;
3313 if (PL_statcache.st_mode & S_ISGID)
3324 STACKED_FTEST_CHECK;
3329 if (PL_statcache.st_mode & S_ISVTX)
3342 STACKED_FTEST_CHECK;
3344 if (PL_op->op_flags & OPf_REF)
3346 else if (isGV(TOPs))
3348 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3349 gv = (GV*)SvRV(POPs);
3351 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3353 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3354 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3355 else if (tmpsv && SvOK(tmpsv)) {
3356 const char *tmps = SvPV_nolen_const(tmpsv);
3364 if (PerlLIO_isatty(fd))
3369 #if defined(atarist) /* this will work with atariST. Configure will
3370 make guesses for other systems. */
3371 # define FILE_base(f) ((f)->_base)
3372 # define FILE_ptr(f) ((f)->_ptr)
3373 # define FILE_cnt(f) ((f)->_cnt)
3374 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3384 register STDCHAR *s;
3390 STACKED_FTEST_CHECK;
3392 if (PL_op->op_flags & OPf_REF)
3394 else if (isGV(TOPs))
3396 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3397 gv = (GV*)SvRV(POPs);
3403 if (gv == PL_defgv) {
3405 io = GvIO(PL_statgv);
3408 goto really_filename;
3413 PL_laststatval = -1;
3414 sv_setpvn(PL_statname, "", 0);
3415 io = GvIO(PL_statgv);
3417 if (io && IoIFP(io)) {
3418 if (! PerlIO_has_base(IoIFP(io)))
3419 DIE(aTHX_ "-T and -B not implemented on filehandles");
3420 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3421 if (PL_laststatval < 0)
3423 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3424 if (PL_op->op_type == OP_FTTEXT)
3429 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3430 i = PerlIO_getc(IoIFP(io));
3432 (void)PerlIO_ungetc(IoIFP(io),i);
3434 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3436 len = PerlIO_get_bufsiz(IoIFP(io));
3437 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3438 /* sfio can have large buffers - limit to 512 */
3443 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3445 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3447 SETERRNO(EBADF,RMS_IFI);
3455 PL_laststype = OP_STAT;
3456 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3457 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3458 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3460 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3463 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3464 if (PL_laststatval < 0) {
3465 (void)PerlIO_close(fp);
3468 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3469 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3470 (void)PerlIO_close(fp);
3472 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3473 RETPUSHNO; /* special case NFS directories */
3474 RETPUSHYES; /* null file is anything */
3479 /* now scan s to look for textiness */
3480 /* XXX ASCII dependent code */
3482 #if defined(DOSISH) || defined(USEMYBINMODE)
3483 /* ignore trailing ^Z on short files */
3484 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3488 for (i = 0; i < len; i++, s++) {
3489 if (!*s) { /* null never allowed in text */
3494 else if (!(isPRINT(*s) || isSPACE(*s)))
3497 else if (*s & 128) {
3499 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3502 /* utf8 characters don't count as odd */
3503 if (UTF8_IS_START(*s)) {
3504 int ulen = UTF8SKIP(s);
3505 if (ulen < len - i) {
3507 for (j = 1; j < ulen; j++) {
3508 if (!UTF8_IS_CONTINUATION(s[j]))
3511 --ulen; /* loop does extra increment */
3521 *s != '\n' && *s != '\r' && *s != '\b' &&
3522 *s != '\t' && *s != '\f' && *s != 27)
3527 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3551 if( !tmps || !*tmps ) {
3552 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3553 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3555 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3560 deprecate("chdir('') or chdir(undef) as chdir()");
3561 tmps = SvPV_nolen_const(*svp);
3565 TAINT_PROPER("chdir");
3570 TAINT_PROPER("chdir");
3571 PUSHi( PerlDir_chdir(tmps) >= 0 );
3573 /* Clear the DEFAULT element of ENV so we'll get the new value
3575 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3583 dSP; dMARK; dTARGET;
3584 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3590 DIE(aTHX_ PL_no_func, "chown");
3599 TAINT_PROPER("chroot");
3600 PUSHi( chroot(tmps) >= 0 );
3603 DIE(aTHX_ PL_no_func, "chroot");
3609 dSP; dMARK; dTARGET;
3611 value = (I32)apply(PL_op->op_type, MARK, SP);
3619 dSP; dMARK; dTARGET;
3621 value = (I32)apply(PL_op->op_type, MARK, SP);
3629 dSP; dMARK; dTARGET;
3631 value = (I32)apply(PL_op->op_type, MARK, SP);
3641 const char *tmps2 = POPpconstx;
3642 const char *tmps = SvPV_nolen_const(TOPs);
3643 TAINT_PROPER("rename");
3645 anum = PerlLIO_rename(tmps, tmps2);
3647 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3648 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3651 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3652 (void)UNLINK(tmps2);
3653 if (!(anum = link(tmps, tmps2)))
3654 anum = UNLINK(tmps);
3666 const char *tmps2 = POPpconstx;
3667 const char *tmps = SvPV_nolen_const(TOPs);
3668 TAINT_PROPER("link");
3669 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3672 DIE(aTHX_ PL_no_func, "link");
3680 const char *tmps2 = POPpconstx;
3681 const char *tmps = SvPV_nolen_const(TOPs);
3682 TAINT_PROPER("symlink");
3683 SETi( symlink(tmps, tmps2) >= 0 );
3686 DIE(aTHX_ PL_no_func, "symlink");
3696 char buf[MAXPATHLEN];
3699 #ifndef INCOMPLETE_TAINTS
3703 len = readlink(tmps, buf, sizeof(buf) - 1);
3711 RETSETUNDEF; /* just pretend it's a normal file */
3715 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3717 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3719 char * const save_filename = filename;
3725 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3726 strcpy(cmdline, cmd);
3727 strcat(cmdline, " ");
3728 for (s = cmdline + strlen(cmdline); *filename; ) {
3733 myfp = PerlProc_popen(cmdline, "r");
3737 SV *tmpsv = sv_newmortal();
3738 /* Need to save/restore 'PL_rs' ?? */
3739 s = sv_gets(tmpsv, myfp, 0);
3740 (void)PerlProc_pclose(myfp);
3744 #ifdef HAS_SYS_ERRLIST
3749 /* you don't see this */
3751 #ifdef HAS_SYS_ERRLIST
3759 if (instr(s, errmsg)) {
3766 #define EACCES EPERM
3768 if (instr(s, "cannot make"))
3769 SETERRNO(EEXIST,RMS_FEX);
3770 else if (instr(s, "existing file"))
3771 SETERRNO(EEXIST,RMS_FEX);
3772 else if (instr(s, "ile exists"))
3773 SETERRNO(EEXIST,RMS_FEX);
3774 else if (instr(s, "non-exist"))
3775 SETERRNO(ENOENT,RMS_FNF);
3776 else if (instr(s, "does not exist"))
3777 SETERRNO(ENOENT,RMS_FNF);
3778 else if (instr(s, "not empty"))
3779 SETERRNO(EBUSY,SS_DEVOFFLINE);
3780 else if (instr(s, "cannot access"))
3781 SETERRNO(EACCES,RMS_PRV);
3783 SETERRNO(EPERM,RMS_PRV);
3786 else { /* some mkdirs return no failure indication */
3787 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3788 if (PL_op->op_type == OP_RMDIR)
3793 SETERRNO(EACCES,RMS_PRV); /* a guess */
3802 /* This macro removes trailing slashes from a directory name.
3803 * Different operating and file systems take differently to
3804 * trailing slashes. According to POSIX 1003.1 1996 Edition
3805 * any number of trailing slashes should be allowed.
3806 * Thusly we snip them away so that even non-conforming
3807 * systems are happy.
3808 * We should probably do this "filtering" for all
3809 * the functions that expect (potentially) directory names:
3810 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3811 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3813 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3814 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3817 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3818 (tmps) = savepvn((tmps), (len)); \
3838 TRIMSLASHES(tmps,len,copy);
3840 TAINT_PROPER("mkdir");
3842 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3844 SETi( dooneliner("mkdir", tmps) );
3845 oldumask = PerlLIO_umask(0);
3846 PerlLIO_umask(oldumask);
3847 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3861 TRIMSLASHES(tmps,len,copy);
3862 TAINT_PROPER("rmdir");
3864 SETi( PerlDir_rmdir(tmps) >= 0 );
3866 SETi( dooneliner("rmdir", tmps) );
3873 /* Directory calls. */
3877 #if defined(Direntry_t) && defined(HAS_READDIR)
3879 const char *dirname = POPpconstx;
3881 register IO *io = GvIOn(gv);
3887 PerlDir_close(IoDIRP(io));
3888 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3894 SETERRNO(EBADF,RMS_DIR);
3897 DIE(aTHX_ PL_no_dir_func, "opendir");
3903 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3904 DIE(aTHX_ PL_no_dir_func, "readdir");
3906 #if !defined(I_DIRENT) && !defined(VMS)
3907 Direntry_t *readdir (DIR *);
3912 const I32 gimme = GIMME;
3913 GV *gv = (GV *)POPs;
3914 register Direntry_t *dp;
3915 register IO *io = GvIOn(gv);
3917 if (!io || !IoDIRP(io))
3921 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3925 sv = newSVpvn(dp->d_name, dp->d_namlen);
3927 sv = newSVpv(dp->d_name, 0);
3929 #ifndef INCOMPLETE_TAINTS
3930 if (!(IoFLAGS(io) & IOf_UNTAINT))
3933 XPUSHs(sv_2mortal(sv));
3935 while (gimme == G_ARRAY);
3937 if (!dp && gimme != G_ARRAY)
3944 SETERRNO(EBADF,RMS_ISI);
3945 if (GIMME == G_ARRAY)
3954 #if defined(HAS_TELLDIR) || defined(telldir)
3956 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3957 /* XXX netbsd still seemed to.
3958 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3959 --JHI 1999-Feb-02 */
3960 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3961 long telldir (DIR *);
3964 register IO *io = GvIOn(gv);
3966 if (!io || !IoDIRP(io))
3969 PUSHi( PerlDir_tell(IoDIRP(io)) );
3973 SETERRNO(EBADF,RMS_ISI);
3976 DIE(aTHX_ PL_no_dir_func, "telldir");
3982 #if defined(HAS_SEEKDIR) || defined(seekdir)
3986 register IO *io = GvIOn(gv);
3988 if (!io || !IoDIRP(io))
3991 (void)PerlDir_seek(IoDIRP(io), along);
3996 SETERRNO(EBADF,RMS_ISI);
3999 DIE(aTHX_ PL_no_dir_func, "seekdir");
4005 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4008 register IO *io = GvIOn(gv);
4010 if (!io || !IoDIRP(io))
4013 (void)PerlDir_rewind(IoDIRP(io));
4017 SETERRNO(EBADF,RMS_ISI);
4020 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4026 #if defined(Direntry_t) && defined(HAS_READDIR)
4029 register IO *io = GvIOn(gv);
4031 if (!io || !IoDIRP(io))
4034 #ifdef VOID_CLOSEDIR
4035 PerlDir_close(IoDIRP(io));
4037 if (PerlDir_close(IoDIRP(io)) < 0) {
4038 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4047 SETERRNO(EBADF,RMS_IFI);
4050 DIE(aTHX_ PL_no_dir_func, "closedir");
4054 /* Process control. */
4064 PERL_FLUSHALL_FOR_CHILD;
4065 childpid = PerlProc_fork();
4069 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4070 SvREADONLY_off(GvSV(tmpgv));
4071 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4072 SvREADONLY_on(GvSV(tmpgv));
4074 #ifdef THREADS_HAVE_PIDS
4075 PL_ppid = (IV)getppid();
4077 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4082 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4087 PERL_FLUSHALL_FOR_CHILD;
4088 childpid = PerlProc_fork();
4094 DIE(aTHX_ PL_no_func, "fork");
4101 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4106 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4107 childpid = wait4pid(-1, &argflags, 0);
4109 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4114 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4115 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4116 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4118 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4123 DIE(aTHX_ PL_no_func, "wait");
4129 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4138 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4139 result = wait4pid(pid, &argflags, optype);
4141 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4146 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4147 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4148 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4150 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4155 DIE(aTHX_ PL_no_func, "waitpid");
4161 dSP; dMARK; dORIGMARK; dTARGET;
4167 while (++MARK <= SP) {
4168 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4173 TAINT_PROPER("system");
4175 PERL_FLUSHALL_FOR_CHILD;
4176 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4182 if (PerlProc_pipe(pp) >= 0)
4184 while ((childpid = PerlProc_fork()) == -1) {
4185 if (errno != EAGAIN) {
4190 PerlLIO_close(pp[0]);
4191 PerlLIO_close(pp[1]);
4198 Sigsave_t ihand,qhand; /* place to save signals during system() */
4202 PerlLIO_close(pp[1]);
4204 rsignal_save(SIGINT, SIG_IGN, &ihand);
4205 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4208 result = wait4pid(childpid, &status, 0);
4209 } while (result == -1 && errno == EINTR);
4211 (void)rsignal_restore(SIGINT, &ihand);
4212 (void)rsignal_restore(SIGQUIT, &qhand);
4214 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4215 do_execfree(); /* free any memory child malloced on fork */
4221 while (n < sizeof(int)) {
4222 n1 = PerlLIO_read(pp[0],
4223 (void*)(((char*)&errkid)+n),
4229 PerlLIO_close(pp[0]);
4230 if (n) { /* Error */
4231 if (n != sizeof(int))
4232 DIE(aTHX_ "panic: kid popen errno read");
4233 errno = errkid; /* Propagate errno from kid */
4234 STATUS_CURRENT = -1;
4237 PUSHi(STATUS_CURRENT);
4241 PerlLIO_close(pp[0]);
4242 #if defined(HAS_FCNTL) && defined(F_SETFD)
4243 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4246 if (PL_op->op_flags & OPf_STACKED) {
4247 SV *really = *++MARK;
4248 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4250 else if (SP - MARK != 1)
4251 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4253 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4257 #else /* ! FORK or VMS or OS/2 */
4260 if (PL_op->op_flags & OPf_STACKED) {
4261 SV *really = *++MARK;
4262 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4263 value = (I32)do_aspawn(really, MARK, SP);
4265 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4268 else if (SP - MARK != 1) {
4269 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4270 value = (I32)do_aspawn(Nullsv, MARK, SP);
4272 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4276 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4278 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4280 STATUS_NATIVE_SET(value);
4283 PUSHi(result ? value : STATUS_CURRENT);
4284 #endif /* !FORK or VMS */
4290 dSP; dMARK; dORIGMARK; dTARGET;
4295 while (++MARK <= SP) {
4296 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4301 TAINT_PROPER("exec");
4303 PERL_FLUSHALL_FOR_CHILD;
4304 if (PL_op->op_flags & OPf_STACKED) {
4305 SV *really = *++MARK;
4306 value = (I32)do_aexec(really, MARK, SP);
4308 else if (SP - MARK != 1)
4310 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4314 (void ) do_aspawn(Nullsv, MARK, SP);
4318 value = (I32)do_aexec(Nullsv, MARK, SP);
4323 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4326 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4329 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4342 dSP; dMARK; dTARGET;
4344 value = (I32)apply(PL_op->op_type, MARK, SP);
4349 DIE(aTHX_ PL_no_func, "kill");
4357 # ifdef THREADS_HAVE_PIDS
4358 if (PL_ppid != 1 && getppid() == 1)
4359 /* maybe the parent process has died. Refresh ppid cache */
4363 XPUSHi( getppid() );
4367 DIE(aTHX_ PL_no_func, "getppid");
4383 pgrp = (I32)BSD_GETPGRP(pid);
4385 if (pid != 0 && pid != PerlProc_getpid())
4386 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4392 DIE(aTHX_ PL_no_func, "getpgrp()");
4411 TAINT_PROPER("setpgrp");
4413 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4415 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4416 || (pid != 0 && pid != PerlProc_getpid()))
4418 DIE(aTHX_ "setpgrp can't take arguments");
4420 SETi( setpgrp() >= 0 );
4421 #endif /* USE_BSDPGRP */
4424 DIE(aTHX_ PL_no_func, "setpgrp()");
4430 #ifdef HAS_GETPRIORITY
4434 SETi( getpriority(which, who) );
4437 DIE(aTHX_ PL_no_func, "getpriority()");
4443 #ifdef HAS_SETPRIORITY
4448 TAINT_PROPER("setpriority");
4449 SETi( setpriority(which, who, niceval) >= 0 );
4452 DIE(aTHX_ PL_no_func, "setpriority()");
4462 XPUSHn( time(Null(Time_t*)) );
4464 XPUSHi( time(Null(Time_t*)) );
4475 (void)PerlProc_times(&PL_timesbuf);
4477 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4478 /* struct tms, though same data */
4482 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4483 if (GIMME == G_ARRAY) {
4484 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4485 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4486 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4492 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4494 if (GIMME == G_ARRAY) {
4495 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4496 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4497 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4501 DIE(aTHX_ "times not implemented");
4503 #endif /* HAS_TIMES */
4511 #ifdef LOCALTIME_EDGECASE_BROKEN
4512 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4517 /* No workarounds in the valid range */
4518 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4519 return (localtime (tp));
4521 /* This edge case is to workaround the undefined behaviour, where the
4522 * TIMEZONE makes the time go beyond the defined range.
4523 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4524 * If there is a negative offset in TZ, like MET-1METDST, some broken
4525 * implementations of localtime () (like AIX 5.2) barf with bogus
4527 * 0x7fffffff gmtime 2038-01-19 03:14:07
4528 * 0x7fffffff localtime 1901-12-13 21:45:51
4529 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4530 * 0x3c19137f gmtime 2001-12-13 20:45:51
4531 * 0x3c19137f localtime 2001-12-13 21:45:51
4532 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4533 * Given that legal timezones are typically between GMT-12 and GMT+12
4534 * we turn back the clock 23 hours before calling the localtime
4535 * function, and add those to the return value. This will never cause
4536 * day wrapping problems, since the edge case is Jan *19*
4538 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4541 if (P->tm_hour >= 24) {
4546 } /* S_my_localtime */
4553 const struct tm *tmbuf;
4554 static const char * const dayname[] =
4555 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4556 static const char * const monname[] =
4557 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4558 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4564 when = (Time_t)SvNVx(POPs);
4566 when = (Time_t)SvIVx(POPs);
4569 if (PL_op->op_type == OP_LOCALTIME)
4570 #ifdef LOCALTIME_EDGECASE_BROKEN
4571 tmbuf = S_my_localtime(aTHX_ &when);
4573 tmbuf = localtime(&when);
4576 tmbuf = gmtime(&when);
4578 if (GIMME != G_ARRAY) {
4584 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4585 dayname[tmbuf->tm_wday],
4586 monname[tmbuf->tm_mon],
4591 tmbuf->tm_year + 1900);
4592 PUSHs(sv_2mortal(tsv));
4597 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4598 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4599 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4600 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4601 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4602 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4603 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4604 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4605 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4616 anum = alarm((unsigned int)anum);
4623 DIE(aTHX_ PL_no_func, "alarm");
4634 (void)time(&lasttime);
4639 PerlProc_sleep((unsigned int)duration);
4642 XPUSHi(when - lasttime);
4646 /* Shared memory. */
4660 return pp_shmwrite();
4665 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4666 dSP; dMARK; dTARGET;
4667 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4676 /* Message passing. */
4690 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4691 dSP; dMARK; dTARGET;
4692 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4703 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4704 dSP; dMARK; dTARGET;
4705 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4718 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4719 dSP; dMARK; dTARGET;
4720 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4727 DIE(aTHX_ "System V IPC is not implemented on this machine");
4733 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4734 dSP; dMARK; dTARGET;
4735 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4743 PUSHp(zero_but_true, ZBTLEN);
4753 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4754 dSP; dMARK; dTARGET;
4755 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4764 /* Get system info. */
4768 #ifdef HAS_GETHOSTBYNAME
4769 return pp_ghostent();
4771 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4777 #ifdef HAS_GETHOSTBYADDR
4778 return pp_ghostent();
4780 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4786 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4788 I32 which = PL_op->op_type;
4789 register char **elem;
4791 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4792 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4793 struct hostent *gethostbyname(Netdb_name_t);
4794 struct hostent *gethostent(void);
4796 struct hostent *hent;
4800 if (which == OP_GHBYNAME) {
4801 #ifdef HAS_GETHOSTBYNAME
4802 char* name = POPpbytex;
4803 hent = PerlSock_gethostbyname(name);
4805 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4808 else if (which == OP_GHBYADDR) {
4809 #ifdef HAS_GETHOSTBYADDR
4810 int addrtype = POPi;
4813 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4815 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4817 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4821 #ifdef HAS_GETHOSTENT
4822 hent = PerlSock_gethostent();
4824 DIE(aTHX_ PL_no_sock_func, "gethostent");
4827 #ifdef HOST_NOT_FOUND
4829 #ifdef USE_REENTRANT_API
4830 # ifdef USE_GETHOSTENT_ERRNO
4831 h_errno = PL_reentrant_buffer->_gethostent_errno;
4834 STATUS_NATIVE_SET(h_errno);
4838 if (GIMME != G_ARRAY) {
4839 PUSHs(sv = sv_newmortal());
4841 if (which == OP_GHBYNAME) {
4843 sv_setpvn(sv, hent->h_addr, hent->h_length);
4846 sv_setpv(sv, (char*)hent->h_name);
4852 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4853 sv_setpv(sv, (char*)hent->h_name);
4854 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4855 for (elem = hent->h_aliases; elem && *elem; elem++) {
4856 sv_catpv(sv, *elem);
4858 sv_catpvn(sv, " ", 1);
4860 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4861 sv_setiv(sv, (IV)hent->h_addrtype);
4862 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4863 len = hent->h_length;
4864 sv_setiv(sv, (IV)len);
4866 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4867 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4868 sv_setpvn(sv, *elem, len);
4871 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4873 sv_setpvn(sv, hent->h_addr, len);
4878 DIE(aTHX_ PL_no_sock_func, "gethostent");
4884 #ifdef HAS_GETNETBYNAME
4885 return pp_gnetent();
4887 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4893 #ifdef HAS_GETNETBYADDR
4894 return pp_gnetent();
4896 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4902 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4904 I32 which = PL_op->op_type;
4905 register char **elem;
4907 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4908 struct netent *getnetbyaddr(Netdb_net_t, int);
4909 struct netent *getnetbyname(Netdb_name_t);
4910 struct netent *getnetent(void);
4912 struct netent *nent;
4914 if (which == OP_GNBYNAME){
4915 #ifdef HAS_GETNETBYNAME
4916 char *name = POPpbytex;
4917 nent = PerlSock_getnetbyname(name);
4919 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4922 else if (which == OP_GNBYADDR) {
4923 #ifdef HAS_GETNETBYADDR
4924 int addrtype = POPi;
4925 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4926 nent = PerlSock_getnetbyaddr(addr, addrtype);
4928 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4932 #ifdef HAS_GETNETENT
4933 nent = PerlSock_getnetent();
4935 DIE(aTHX_ PL_no_sock_func, "getnetent");
4938 #ifdef HOST_NOT_FOUND
4940 #ifdef USE_REENTRANT_API
4941 # ifdef USE_GETNETENT_ERRNO
4942 h_errno = PL_reentrant_buffer->_getnetent_errno;
4945 STATUS_NATIVE_SET(h_errno);
4950 if (GIMME != G_ARRAY) {
4951 PUSHs(sv = sv_newmortal());
4953 if (which == OP_GNBYNAME)
4954 sv_setiv(sv, (IV)nent->n_net);
4956 sv_setpv(sv, nent->n_name);
4962 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4963 sv_setpv(sv, nent->n_name);
4964 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4965 for (elem = nent->n_aliases; elem && *elem; elem++) {
4966 sv_catpv(sv, *elem);
4968 sv_catpvn(sv, " ", 1);
4970 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4971 sv_setiv(sv, (IV)nent->n_addrtype);
4972 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4973 sv_setiv(sv, (IV)nent->n_net);
4978 DIE(aTHX_ PL_no_sock_func, "getnetent");
4984 #ifdef HAS_GETPROTOBYNAME
4985 return pp_gprotoent();
4987 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4993 #ifdef HAS_GETPROTOBYNUMBER
4994 return pp_gprotoent();
4996 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5002 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
5004 I32 which = PL_op->op_type;
5005 register char **elem;
5007 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
5008 struct protoent *getprotobyname(Netdb_name_t);
5009 struct protoent *getprotobynumber(int);
5010 struct protoent *getprotoent(void);
5012 struct protoent *pent;
5014 if (which == OP_GPBYNAME) {
5015 #ifdef HAS_GETPROTOBYNAME
5016 char* name = POPpbytex;
5017 pent = PerlSock_getprotobyname(name);
5019 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5022 else if (which == OP_GPBYNUMBER) {
5023 #ifdef HAS_GETPROTOBYNUMBER
5025 pent = PerlSock_getprotobynumber(number);
5027 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5031 #ifdef HAS_GETPROTOENT
5032 pent = PerlSock_getprotoent();
5034 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5038 if (GIMME != G_ARRAY) {
5039 PUSHs(sv = sv_newmortal());
5041 if (which == OP_GPBYNAME)
5042 sv_setiv(sv, (IV)pent->p_proto);
5044 sv_setpv(sv, pent->p_name);
5050 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5051 sv_setpv(sv, pent->p_name);
5052 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5053 for (elem = pent->p_aliases; elem && *elem; elem++) {
5054 sv_catpv(sv, *elem);
5056 sv_catpvn(sv, " ", 1);
5058 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5059 sv_setiv(sv, (IV)pent->p_proto);
5064 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5070 #ifdef HAS_GETSERVBYNAME
5071 return pp_gservent();
5073 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5079 #ifdef HAS_GETSERVBYPORT
5080 return pp_gservent();
5082 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5088 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5090 I32 which = PL_op->op_type;
5091 register char **elem;
5093 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5094 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5095 struct servent *getservbyport(int, Netdb_name_t);
5096 struct servent *getservent(void);
5098 struct servent *sent;
5100 if (which == OP_GSBYNAME) {
5101 #ifdef HAS_GETSERVBYNAME
5102 char *proto = POPpbytex;
5103 char *name = POPpbytex;
5105 if (proto && !*proto)
5108 sent = PerlSock_getservbyname(name, proto);
5110 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5113 else if (which == OP_GSBYPORT) {
5114 #ifdef HAS_GETSERVBYPORT
5115 char *proto = POPpbytex;
5116 unsigned short port = (unsigned short)POPu;
5118 if (proto && !*proto)
5122 port = PerlSock_htons(port);
5124 sent = PerlSock_getservbyport(port, proto);
5126 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5130 #ifdef HAS_GETSERVENT
5131 sent = PerlSock_getservent();
5133 DIE(aTHX_ PL_no_sock_func, "getservent");
5137 if (GIMME != G_ARRAY) {
5138 PUSHs(sv = sv_newmortal());
5140 if (which == OP_GSBYNAME) {
5142 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5144 sv_setiv(sv, (IV)(sent->s_port));
5148 sv_setpv(sv, sent->s_name);
5154 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5155 sv_setpv(sv, sent->s_name);
5156 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5157 for (elem = sent->s_aliases; elem && *elem; elem++) {
5158 sv_catpv(sv, *elem);
5160 sv_catpvn(sv, " ", 1);
5162 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5164 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5166 sv_setiv(sv, (IV)(sent->s_port));
5168 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5169 sv_setpv(sv, sent->s_proto);
5174 DIE(aTHX_ PL_no_sock_func, "getservent");
5180 #ifdef HAS_SETHOSTENT
5182 PerlSock_sethostent(TOPi);
5185 DIE(aTHX_ PL_no_sock_func, "sethostent");
5191 #ifdef HAS_SETNETENT
5193 PerlSock_setnetent(TOPi);
5196 DIE(aTHX_ PL_no_sock_func, "setnetent");
5202 #ifdef HAS_SETPROTOENT
5204 PerlSock_setprotoent(TOPi);
5207 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5213 #ifdef HAS_SETSERVENT
5215 PerlSock_setservent(TOPi);
5218 DIE(aTHX_ PL_no_sock_func, "setservent");
5224 #ifdef HAS_ENDHOSTENT
5226 PerlSock_endhostent();
5230 DIE(aTHX_ PL_no_sock_func, "endhostent");
5236 #ifdef HAS_ENDNETENT
5238 PerlSock_endnetent();
5242 DIE(aTHX_ PL_no_sock_func, "endnetent");
5248 #ifdef HAS_ENDPROTOENT
5250 PerlSock_endprotoent();
5254 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5260 #ifdef HAS_ENDSERVENT
5262 PerlSock_endservent();
5266 DIE(aTHX_ PL_no_sock_func, "endservent");
5275 DIE(aTHX_ PL_no_func, "getpwnam");
5284 DIE(aTHX_ PL_no_func, "getpwuid");
5292 I32 which = PL_op->op_type;
5294 struct passwd *pwent = NULL;
5296 * We currently support only the SysV getsp* shadow password interface.
5297 * The interface is declared in <shadow.h> and often one needs to link
5298 * with -lsecurity or some such.
5299 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5302 * AIX getpwnam() is clever enough to return the encrypted password
5303 * only if the caller (euid?) is root.
5305 * There are at least three other shadow password APIs. Many platforms
5306 * seem to contain more than one interface for accessing the shadow
5307 * password databases, possibly for compatibility reasons.
5308 * The getsp*() is by far he simplest one, the other two interfaces
5309 * are much more complicated, but also very similar to each other.
5314 * struct pr_passwd *getprpw*();
5315 * The password is in
5316 * char getprpw*(...).ufld.fd_encrypt[]
5317 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5322 * struct es_passwd *getespw*();
5323 * The password is in
5324 * char *(getespw*(...).ufld.fd_encrypt)
5325 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5328 * struct userpw *getuserpw();
5329 * The password is in
5330 * char *(getuserpw(...)).spw_upw_passwd
5331 * (but the de facto standard getpwnam() should work okay)
5333 * Mention I_PROT here so that Configure probes for it.
5335 * In HP-UX for getprpw*() the manual page claims that one should include
5336 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5337 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5338 * and pp_sys.c already includes <shadow.h> if there is such.
5340 * Note that <sys/security.h> is already probed for, but currently
5341 * it is only included in special cases.
5343 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5344 * be preferred interface, even though also the getprpw*() interface
5345 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5346 * One also needs to call set_auth_parameters() in main() before
5347 * doing anything else, whether one is using getespw*() or getprpw*().
5349 * Note that accessing the shadow databases can be magnitudes
5350 * slower than accessing the standard databases.
5355 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5356 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5357 * the pw_comment is left uninitialized. */
5358 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5364 char* name = POPpbytex;
5365 pwent = getpwnam(name);
5371 pwent = getpwuid(uid);
5375 # ifdef HAS_GETPWENT
5377 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5378 if (pwent) pwent = getpwnam(pwent->pw_name);
5381 DIE(aTHX_ PL_no_func, "getpwent");
5387 if (GIMME != G_ARRAY) {
5388 PUSHs(sv = sv_newmortal());
5390 if (which == OP_GPWNAM)
5391 # if Uid_t_sign <= 0
5392 sv_setiv(sv, (IV)pwent->pw_uid);
5394 sv_setuv(sv, (UV)pwent->pw_uid);
5397 sv_setpv(sv, pwent->pw_name);
5403 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5404 sv_setpv(sv, pwent->pw_name);
5406 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5408 /* If we have getspnam(), we try to dig up the shadow
5409 * password. If we are underprivileged, the shadow
5410 * interface will set the errno to EACCES or similar,
5411 * and return a null pointer. If this happens, we will
5412 * use the dummy password (usually "*" or "x") from the
5413 * standard password database.
5415 * In theory we could skip the shadow call completely
5416 * if euid != 0 but in practice we cannot know which
5417 * security measures are guarding the shadow databases
5418 * on a random platform.
5420 * Resist the urge to use additional shadow interfaces.
5421 * Divert the urge to writing an extension instead.
5424 /* Some AIX setups falsely(?) detect some getspnam(), which
5425 * has a different API than the Solaris/IRIX one. */
5426 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5428 struct spwd *spwent;
5429 int saverrno; /* Save and restore errno so that
5430 * underprivileged attempts seem
5431 * to have never made the unsccessful
5432 * attempt to retrieve the shadow password. */
5435 spwent = getspnam(pwent->pw_name);
5437 if (spwent && spwent->sp_pwdp)
5438 sv_setpv(sv, spwent->sp_pwdp);
5442 if (!SvPOK(sv)) /* Use the standard password, then. */
5443 sv_setpv(sv, pwent->pw_passwd);
5446 # ifndef INCOMPLETE_TAINTS
5447 /* passwd is tainted because user himself can diddle with it.
5448 * admittedly not much and in a very limited way, but nevertheless. */
5452 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5453 # if Uid_t_sign <= 0
5454 sv_setiv(sv, (IV)pwent->pw_uid);
5456 sv_setuv(sv, (UV)pwent->pw_uid);
5459 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5460 # if Uid_t_sign <= 0
5461 sv_setiv(sv, (IV)pwent->pw_gid);
5463 sv_setuv(sv, (UV)pwent->pw_gid);
5465 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5466 * because of the poor interface of the Perl getpw*(),
5467 * not because there's some standard/convention saying so.
5468 * A better interface would have been to return a hash,
5469 * but we are accursed by our history, alas. --jhi. */
5470 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5472 sv_setiv(sv, (IV)pwent->pw_change);
5475 sv_setiv(sv, (IV)pwent->pw_quota);
5478 sv_setpv(sv, pwent->pw_age);
5483 /* pw_class and pw_comment are mutually exclusive--.
5484 * see the above note for pw_change, pw_quota, and pw_age. */
5485 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5487 sv_setpv(sv, pwent->pw_class);
5490 sv_setpv(sv, pwent->pw_comment);
5494 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5496 sv_setpv(sv, pwent->pw_gecos);
5498 # ifndef INCOMPLETE_TAINTS
5499 /* pw_gecos is tainted because user himself can diddle with it. */
5503 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5504 sv_setpv(sv, pwent->pw_dir);
5506 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5507 sv_setpv(sv, pwent->pw_shell);
5508 # ifndef INCOMPLETE_TAINTS
5509 /* pw_shell is tainted because user himself can diddle with it. */
5514 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5515 sv_setiv(sv, (IV)pwent->pw_expire);
5520 DIE(aTHX_ PL_no_func, "getpwent");
5526 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5531 DIE(aTHX_ PL_no_func, "setpwent");
5537 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5542 DIE(aTHX_ PL_no_func, "endpwent");
5551 DIE(aTHX_ PL_no_func, "getgrnam");
5560 DIE(aTHX_ PL_no_func, "getgrgid");
5568 I32 which = PL_op->op_type;
5569 register char **elem;
5571 struct group *grent;
5573 if (which == OP_GGRNAM) {
5574 char* name = POPpbytex;
5575 grent = (struct group *)getgrnam(name);
5577 else if (which == OP_GGRGID) {
5579 grent = (struct group *)getgrgid(gid);
5583 grent = (struct group *)getgrent();
5585 DIE(aTHX_ PL_no_func, "getgrent");
5589 if (GIMME != G_ARRAY) {
5590 PUSHs(sv = sv_newmortal());
5592 if (which == OP_GGRNAM)
5593 sv_setiv(sv, (IV)grent->gr_gid);
5595 sv_setpv(sv, grent->gr_name);
5601 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5602 sv_setpv(sv, grent->gr_name);
5604 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5606 sv_setpv(sv, grent->gr_passwd);
5609 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5610 sv_setiv(sv, (IV)grent->gr_gid);
5612 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5613 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5614 /* In UNICOS/mk (_CRAYMPP) the multithreading
5615 * versions (getgrnam_r, getgrgid_r)
5616 * seem to return an illegal pointer
5617 * as the group members list, gr_mem.
5618 * getgrent() doesn't even have a _r version
5619 * but the gr_mem is poisonous anyway.
5620 * So yes, you cannot get the list of group
5621 * members if building multithreaded in UNICOS/mk. */
5622 for (elem = grent->gr_mem; elem && *elem; elem++) {
5623 sv_catpv(sv, *elem);
5625 sv_catpvn(sv, " ", 1);
5632 DIE(aTHX_ PL_no_func, "getgrent");
5638 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5643 DIE(aTHX_ PL_no_func, "setgrent");
5649 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5654 DIE(aTHX_ PL_no_func, "endgrent");
5664 if (!(tmps = PerlProc_getlogin()))
5666 PUSHp(tmps, strlen(tmps));
5669 DIE(aTHX_ PL_no_func, "getlogin");
5673 /* Miscellaneous. */
5678 dSP; dMARK; dORIGMARK; dTARGET;
5679 register I32 items = SP - MARK;
5680 unsigned long a[20];
5685 while (++MARK <= SP) {
5686 if (SvTAINTED(*MARK)) {
5692 TAINT_PROPER("syscall");
5695 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5696 * or where sizeof(long) != sizeof(char*). But such machines will
5697 * not likely have syscall implemented either, so who cares?
5699 while (++MARK <= SP) {
5700 if (SvNIOK(*MARK) || !i)
5701 a[i++] = SvIV(*MARK);
5702 else if (*MARK == &PL_sv_undef)
5705 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5711 DIE(aTHX_ "Too many args to syscall");
5713 DIE(aTHX_ "Too few args to syscall");
5715 retval = syscall(a[0]);
5718 retval = syscall(a[0],a[1]);
5721 retval = syscall(a[0],a[1],a[2]);
5724 retval = syscall(a[0],a[1],a[2],a[3]);
5727 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5730 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5733 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5736 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5740 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5743 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5746 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5750 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5754 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5758 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5759 a[10],a[11],a[12],a[13]);
5761 #endif /* atarist */
5767 DIE(aTHX_ PL_no_func, "syscall");
5771 #ifdef FCNTL_EMULATE_FLOCK
5773 /* XXX Emulate flock() with fcntl().
5774 What's really needed is a good file locking module.
5778 fcntl_emulate_flock(int fd, int operation)
5782 switch (operation & ~LOCK_NB) {
5784 flock.l_type = F_RDLCK;
5787 flock.l_type = F_WRLCK;
5790 flock.l_type = F_UNLCK;
5796 flock.l_whence = SEEK_SET;
5797 flock.l_start = flock.l_len = (Off_t)0;
5799 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5802 #endif /* FCNTL_EMULATE_FLOCK */
5804 #ifdef LOCKF_EMULATE_FLOCK
5806 /* XXX Emulate flock() with lockf(). This is just to increase
5807 portability of scripts. The calls are not completely
5808 interchangeable. What's really needed is a good file
5812 /* The lockf() constants might have been defined in <unistd.h>.
5813 Unfortunately, <unistd.h> causes troubles on some mixed
5814 (BSD/POSIX) systems, such as SunOS 4.1.3.
5816 Further, the lockf() constants aren't POSIX, so they might not be
5817 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5818 just stick in the SVID values and be done with it. Sigh.
5822 # define F_ULOCK 0 /* Unlock a previously locked region */
5825 # define F_LOCK 1 /* Lock a region for exclusive use */
5828 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5831 # define F_TEST 3 /* Test a region for other processes locks */
5835 lockf_emulate_flock(int fd, int operation)
5841 /* flock locks entire file so for lockf we need to do the same */
5843 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5844 if (pos > 0) /* is seekable and needs to be repositioned */
5845 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5846 pos = -1; /* seek failed, so don't seek back afterwards */
5849 switch (operation) {
5851 /* LOCK_SH - get a shared lock */
5853 /* LOCK_EX - get an exclusive lock */
5855 i = lockf (fd, F_LOCK, 0);
5858 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5859 case LOCK_SH|LOCK_NB:
5860 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5861 case LOCK_EX|LOCK_NB:
5862 i = lockf (fd, F_TLOCK, 0);
5864 if ((errno == EAGAIN) || (errno == EACCES))
5865 errno = EWOULDBLOCK;
5868 /* LOCK_UN - unlock (non-blocking is a no-op) */
5870 case LOCK_UN|LOCK_NB:
5871 i = lockf (fd, F_ULOCK, 0);
5874 /* Default - can't decipher operation */
5881 if (pos > 0) /* need to restore position of the handle */
5882 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5887 #endif /* LOCKF_EMULATE_FLOCK */
5891 * c-indentation-style: bsd
5893 * indent-tabs-mode: t
5896 * ex: set ts=8 sts=4 sw=4 noet: