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");
521 tmps = SvPV_const(tmpsv, len);
527 tmpsv = sv_2mortal(newSVpvn("Died", 4));
529 DIE(aTHX_ "%"SVf, tmpsv);
549 DIE(aTHX_ PL_no_usym, "filehandle");
550 if ((io = GvIOp(gv)))
551 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
553 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
554 /* Method's args are same as ours ... */
555 /* ... except handle is replaced by the object */
556 *MARK-- = SvTIED_obj((SV*)io, mg);
560 call_method("OPEN", G_SCALAR);
573 tmps = SvPV_const(sv, len);
574 ok = do_openn(gv, (char *)tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
577 PUSHi( (I32)PL_forkprocess );
578 else if (PL_forkprocess == 0) /* we are a new child */
597 if (gv && (io = GvIO(gv))
598 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
601 XPUSHs(SvTIED_obj((SV*)io, mg));
604 call_method("CLOSE", G_SCALAR);
610 PUSHs(boolSV(do_close(gv, TRUE)));
630 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
631 DIE(aTHX_ PL_no_usym, "filehandle");
636 do_close(rgv, FALSE);
638 do_close(wgv, FALSE);
640 if (PerlProc_pipe(fd) < 0)
643 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
644 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
645 IoOFP(rstio) = IoIFP(rstio);
646 IoIFP(wstio) = IoOFP(wstio);
647 IoTYPE(rstio) = IoTYPE_RDONLY;
648 IoTYPE(wstio) = IoTYPE_WRONLY;
650 if (!IoIFP(rstio) || !IoOFP(wstio)) {
651 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
652 else PerlLIO_close(fd[0]);
653 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
654 else PerlLIO_close(fd[1]);
657 #if defined(HAS_FCNTL) && defined(F_SETFD)
658 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
659 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
666 DIE(aTHX_ PL_no_func, "pipe");
682 if (gv && (io = GvIO(gv))
683 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
686 XPUSHs(SvTIED_obj((SV*)io, mg));
689 call_method("FILENO", G_SCALAR);
695 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
696 /* Can't do this because people seem to do things like
697 defined(fileno($foo)) to check whether $foo is a valid fh.
698 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
699 report_evil_fh(gv, io, PL_op->op_type);
704 PUSHi(PerlIO_fileno(fp));
716 anum = PerlLIO_umask(0);
717 (void)PerlLIO_umask(anum);
720 anum = PerlLIO_umask(POPi);
721 TAINT_PROPER("umask");
724 /* Only DIE if trying to restrict permissions on "user" (self).
725 * Otherwise it's harmless and more useful to just return undef
726 * since 'group' and 'other' concepts probably don't exist here. */
727 if (MAXARG >= 1 && (POPi & 0700))
728 DIE(aTHX_ "umask not implemented");
729 XPUSHs(&PL_sv_undef);
751 if (gv && (io = GvIO(gv))
752 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
755 XPUSHs(SvTIED_obj((SV*)io, mg));
760 call_method("BINMODE", G_SCALAR);
767 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
768 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
769 report_evil_fh(gv, io, PL_op->op_type);
770 SETERRNO(EBADF,RMS_IFI);
775 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
776 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
777 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
778 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
779 mode_from_discipline(discp),
780 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
801 const I32 markoff = MARK - PL_stack_base;
802 const char *methname;
803 int how = PERL_MAGIC_tied;
807 switch(SvTYPE(varsv)) {
809 methname = "TIEHASH";
810 HvEITER_set((HV *)varsv, 0);
813 methname = "TIEARRAY";
816 #ifdef GV_UNIQUE_CHECK
817 if (GvUNIQUE((GV*)varsv)) {
818 Perl_croak(aTHX_ "Attempt to tie unique GV");
821 methname = "TIEHANDLE";
822 how = PERL_MAGIC_tiedscalar;
823 /* For tied filehandles, we apply tiedscalar magic to the IO
824 slot of the GP rather than the GV itself. AMS 20010812 */
826 GvIOp(varsv) = newIO();
827 varsv = (SV *)GvIOp(varsv);
830 methname = "TIESCALAR";
831 how = PERL_MAGIC_tiedscalar;
835 if (sv_isobject(*MARK)) {
837 PUSHSTACKi(PERLSI_MAGIC);
839 EXTEND(SP,(I32)items);
843 call_method(methname, G_SCALAR);
846 /* Not clear why we don't call call_method here too.
847 * perhaps to get different error message ?
849 stash = gv_stashsv(*MARK, FALSE);
850 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
851 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
855 PUSHSTACKi(PERLSI_MAGIC);
857 EXTEND(SP,(I32)items);
861 call_sv((SV*)GvCV(gv), G_SCALAR);
867 if (sv_isobject(sv)) {
868 sv_unmagic(varsv, how);
869 /* Croak if a self-tie on an aggregate is attempted. */
870 if (varsv == SvRV(sv) &&
871 (SvTYPE(varsv) == SVt_PVAV ||
872 SvTYPE(varsv) == SVt_PVHV))
874 "Self-ties of arrays and hashes are not supported");
875 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
878 SP = PL_stack_base + markoff;
888 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
889 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
891 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
894 if ((mg = SvTIED_mg(sv, how))) {
895 SV * const obj = SvRV(SvTIED_obj(sv, mg));
899 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
900 isGV(gv) && (cv = GvCV(gv))) {
902 XPUSHs(SvTIED_obj((SV*)gv, mg));
903 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
906 call_sv((SV *)cv, G_VOID);
910 else if (ckWARN(WARN_UNTIE)) {
911 if (mg && SvREFCNT(obj) > 1)
912 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
913 "untie attempted while %"UVuf" inner references still exist",
914 (UV)SvREFCNT(obj) - 1 ) ;
918 sv_unmagic(sv, how) ;
927 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
928 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
930 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
933 if ((mg = SvTIED_mg(sv, how))) {
934 SV *osv = SvTIED_obj(sv, mg);
935 if (osv == mg->mg_obj)
936 osv = sv_mortalcopy(osv);
951 HV * const hv = (HV*)POPs;
953 sv = sv_mortalcopy(&PL_sv_no);
954 sv_setpv(sv, "AnyDBM_File");
955 stash = gv_stashsv(sv, FALSE);
956 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
958 require_pv("AnyDBM_File.pm");
960 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
961 DIE(aTHX_ "No dbm on this machine");
971 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
973 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
976 call_sv((SV*)GvCV(gv), G_SCALAR);
979 if (!sv_isobject(TOPs)) {
984 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
987 call_sv((SV*)GvCV(gv), G_SCALAR);
991 if (sv_isobject(TOPs)) {
992 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
993 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1015 struct timeval timebuf;
1016 struct timeval *tbuf = &timebuf;
1019 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1024 # if BYTEORDER & 0xf0000
1025 # define ORDERBYTE (0x88888888 - BYTEORDER)
1027 # define ORDERBYTE (0x4444 - BYTEORDER)
1033 for (i = 1; i <= 3; i++) {
1035 if (SvOK(sv) && SvREADONLY(sv)) {
1037 sv_force_normal_flags(sv, 0);
1039 DIE(aTHX_ PL_no_modify);
1048 /* little endians can use vecs directly */
1049 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1056 masksize = NFDBITS / NBBY;
1058 masksize = sizeof(long); /* documented int, everyone seems to use long */
1060 Zero(&fd_sets[0], 4, char*);
1063 # if SELECT_MIN_BITS == 1
1064 growsize = sizeof(fd_set);
1066 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1067 # undef SELECT_MIN_BITS
1068 # define SELECT_MIN_BITS __FD_SETSIZE
1070 /* If SELECT_MIN_BITS is greater than one we most probably will want
1071 * to align the sizes with SELECT_MIN_BITS/8 because for example
1072 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1073 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1074 * on (sets/tests/clears bits) is 32 bits. */
1075 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1083 timebuf.tv_sec = (long)value;
1084 value -= (NV)timebuf.tv_sec;
1085 timebuf.tv_usec = (long)(value * 1000000.0);
1088 tbuf = Null(struct timeval*);
1090 for (i = 1; i <= 3; i++) {
1096 else if (!SvPOK(sv))
1097 SvPV_force_nolen(sv); /* force string conversion */
1100 Sv_Grow(sv, growsize);
1104 while (++j <= growsize) {
1108 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1110 Newx(fd_sets[i], growsize, char);
1111 for (offset = 0; offset < growsize; offset += masksize) {
1112 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1113 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1116 fd_sets[i] = SvPVX(sv);
1120 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1121 /* Can't make just the (void*) conditional because that would be
1122 * cpp #if within cpp macro, and not all compilers like that. */
1123 nfound = PerlSock_select(
1125 (Select_fd_set_t) fd_sets[1],
1126 (Select_fd_set_t) fd_sets[2],
1127 (Select_fd_set_t) fd_sets[3],
1128 (void*) tbuf); /* Workaround for compiler bug. */
1130 nfound = PerlSock_select(
1132 (Select_fd_set_t) fd_sets[1],
1133 (Select_fd_set_t) fd_sets[2],
1134 (Select_fd_set_t) fd_sets[3],
1137 for (i = 1; i <= 3; i++) {
1140 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1142 for (offset = 0; offset < growsize; offset += masksize) {
1143 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1144 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1146 Safefree(fd_sets[i]);
1153 PUSHs(&PL_sv_undef);
1156 if (GIMME == G_ARRAY && tbuf) {
1157 value = (NV)(timebuf.tv_sec) +
1158 (NV)(timebuf.tv_usec) / 1000000.0;
1159 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1160 sv_setnv(sv, value);
1164 DIE(aTHX_ "select not implemented");
1169 Perl_setdefout(pTHX_ GV *gv)
1172 (void)SvREFCNT_inc(gv);
1174 SvREFCNT_dec(PL_defoutgv);
1184 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1186 egv = GvEGV(PL_defoutgv);
1191 XPUSHs(&PL_sv_undef);
1193 GV ** const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1194 if (gvp && *gvp == egv) {
1195 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1199 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1204 if (!GvIO(newdefout))
1205 gv_IOadd(newdefout);
1206 setdefout(newdefout);
1217 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
1219 if (gv && (io = GvIO(gv))
1220 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1222 const I32 gimme = GIMME_V;
1224 XPUSHs(SvTIED_obj((SV*)io, mg));
1227 call_method("GETC", gimme);
1230 if (gimme == G_SCALAR)
1231 SvSetMagicSV_nosteal(TARG, TOPs);
1234 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1235 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1236 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1237 report_evil_fh(gv, io, PL_op->op_type);
1238 SETERRNO(EBADF,RMS_IFI);
1242 sv_setpvn(TARG, " ", 1);
1243 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1244 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1245 /* Find out how many bytes the char needs */
1246 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1249 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1250 SvCUR_set(TARG,1+len);
1260 return pp_sysread();
1264 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1267 register PERL_CONTEXT *cx;
1268 const I32 gimme = GIMME_V;
1273 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1275 cx->blk_sub.retop = retop;
1277 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
1279 setdefout(gv); /* locally select filehandle so $% et al work */
1311 SV * const tmpsv = sv_newmortal();
1313 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1314 name = SvPV_nolen_const(tmpsv);
1316 DIE(aTHX_ "Undefined format \"%s\" called", name);
1318 DIE(aTHX_ "Not a format reference");
1321 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1323 IoFLAGS(io) &= ~IOf_DIDTOP;
1324 return doform(cv,gv,PL_op->op_next);
1330 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1331 register IO * const io = GvIOp(gv);
1332 PerlIO * const ofp = IoOFP(io);
1336 register PERL_CONTEXT *cx;
1338 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1339 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1342 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1343 PL_formtarget != PL_toptarget)
1347 if (!IoTOP_GV(io)) {
1350 if (!IoTOP_NAME(io)) {
1352 if (!IoFMT_NAME(io))
1353 IoFMT_NAME(io) = savepv(GvNAME(gv));
1354 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1355 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1356 if ((topgv && GvFORM(topgv)) ||
1357 !gv_fetchpv("top",FALSE,SVt_PVFM))
1358 IoTOP_NAME(io) = savesvpv(topname);
1360 IoTOP_NAME(io) = savepvn("top", 3);
1362 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1363 if (!topgv || !GvFORM(topgv)) {
1364 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1367 IoTOP_GV(io) = topgv;
1369 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1370 I32 lines = IoLINES_LEFT(io);
1371 const char *s = SvPVX_const(PL_formtarget);
1372 if (lines <= 0) /* Yow, header didn't even fit!!! */
1374 while (lines-- > 0) {
1375 s = strchr(s, '\n');
1381 const STRLEN save = SvCUR(PL_formtarget);
1382 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1383 do_print(PL_formtarget, ofp);
1384 SvCUR_set(PL_formtarget, save);
1385 sv_chop(PL_formtarget, s);
1386 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1389 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1390 do_print(PL_formfeed, ofp);
1391 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1393 PL_formtarget = PL_toptarget;
1394 IoFLAGS(io) |= IOf_DIDTOP;
1397 DIE(aTHX_ "bad top format reference");
1400 SV * const sv = sv_newmortal();
1402 gv_efullname4(sv, fgv, Nullch, FALSE);
1403 name = SvPV_nolen_const(sv);
1405 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1409 DIE(aTHX_ "Undefined top format called");
1412 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1413 return doform(cv,gv,PL_op);
1417 POPBLOCK(cx,PL_curpm);
1423 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1425 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1426 else if (ckWARN(WARN_CLOSED))
1427 report_evil_fh(gv, io, PL_op->op_type);
1432 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1433 if (ckWARN(WARN_IO))
1434 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1436 if (!do_print(PL_formtarget, fp))
1439 FmLINES(PL_formtarget) = 0;
1440 SvCUR_set(PL_formtarget, 0);
1441 *SvEND(PL_formtarget) = '\0';
1442 if (IoFLAGS(io) & IOf_FLUSH)
1443 (void)PerlIO_flush(fp);
1448 PL_formtarget = PL_bodytarget;
1450 PERL_UNUSED_VAR(newsp);
1451 PERL_UNUSED_VAR(gimme);
1452 return cx->blk_sub.retop;
1457 dVAR; dSP; dMARK; dORIGMARK;
1464 if (PL_op->op_flags & OPf_STACKED)
1469 if (gv && (io = GvIO(gv))
1470 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1472 if (MARK == ORIGMARK) {
1475 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1479 *MARK = SvTIED_obj((SV*)io, mg);
1482 call_method("PRINTF", G_SCALAR);
1485 MARK = ORIGMARK + 1;
1492 if (!(io = GvIO(gv))) {
1493 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1494 report_evil_fh(gv, io, PL_op->op_type);
1495 SETERRNO(EBADF,RMS_IFI);
1498 else if (!(fp = IoOFP(io))) {
1499 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1501 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1502 else if (ckWARN(WARN_CLOSED))
1503 report_evil_fh(gv, io, PL_op->op_type);
1505 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1509 do_sprintf(sv, SP - MARK, MARK + 1);
1510 if (!do_print(sv, fp))
1513 if (IoFLAGS(io) & IOf_FLUSH)
1514 if (PerlIO_flush(fp) == EOF)
1525 PUSHs(&PL_sv_undef);
1532 const int perm = (MAXARG > 3) ? POPi : 0666;
1533 const int mode = POPi;
1534 SV * const sv = POPs;
1535 GV * const gv = (GV *)POPs;
1538 /* Need TIEHANDLE method ? */
1539 const char * const tmps = SvPV_const(sv, len);
1540 /* FIXME? do_open should do const */
1541 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
1542 IoLINES(GvIOp(gv)) = 0;
1546 PUSHs(&PL_sv_undef);
1553 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1559 Sock_size_t bufsize;
1567 bool charstart = FALSE;
1568 STRLEN charskip = 0;
1571 GV * const gv = (GV*)*++MARK;
1572 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1573 && gv && (io = GvIO(gv)) )
1575 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1579 *MARK = SvTIED_obj((SV*)io, mg);
1581 call_method("READ", G_SCALAR);
1595 sv_setpvn(bufsv, "", 0);
1596 length = SvIVx(*++MARK);
1599 offset = SvIVx(*++MARK);
1603 if (!io || !IoIFP(io)) {
1604 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1605 report_evil_fh(gv, io, PL_op->op_type);
1606 SETERRNO(EBADF,RMS_IFI);
1609 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1610 buffer = SvPVutf8_force(bufsv, blen);
1611 /* UTF-8 may not have been set if they are all low bytes */
1616 buffer = SvPV_force(bufsv, blen);
1617 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1620 DIE(aTHX_ "Negative length");
1628 if (PL_op->op_type == OP_RECV) {
1629 char namebuf[MAXPATHLEN];
1630 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1631 bufsize = sizeof (struct sockaddr_in);
1633 bufsize = sizeof namebuf;
1635 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1639 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1640 /* 'offset' means 'flags' here */
1641 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1642 (struct sockaddr *)namebuf, &bufsize);
1646 /* Bogus return without padding */
1647 bufsize = sizeof (struct sockaddr_in);
1649 SvCUR_set(bufsv, count);
1650 *SvEND(bufsv) = '\0';
1651 (void)SvPOK_only(bufsv);
1655 /* This should not be marked tainted if the fp is marked clean */
1656 if (!(IoFLAGS(io) & IOf_UNTAINT))
1657 SvTAINTED_on(bufsv);
1659 sv_setpvn(TARG, namebuf, bufsize);
1664 if (PL_op->op_type == OP_RECV)
1665 DIE(aTHX_ PL_no_sock_func, "recv");
1667 if (DO_UTF8(bufsv)) {
1668 /* offset adjust in characters not bytes */
1669 blen = sv_len_utf8(bufsv);
1672 if (-offset > (int)blen)
1673 DIE(aTHX_ "Offset outside string");
1676 if (DO_UTF8(bufsv)) {
1677 /* convert offset-as-chars to offset-as-bytes */
1678 if (offset >= (int)blen)
1679 offset += SvCUR(bufsv) - blen;
1681 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1684 bufsize = SvCUR(bufsv);
1685 /* Allocating length + offset + 1 isn't perfect in the case of reading
1686 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1688 (should be 2 * length + offset + 1, or possibly something longer if
1689 PL_encoding is true) */
1690 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1691 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1692 Zero(buffer+bufsize, offset-bufsize, char);
1694 buffer = buffer + offset;
1696 read_target = bufsv;
1698 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1699 concatenate it to the current buffer. */
1701 /* Truncate the existing buffer to the start of where we will be
1703 SvCUR_set(bufsv, offset);
1705 read_target = sv_newmortal();
1706 SvUPGRADE(read_target, SVt_PV);
1707 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1710 if (PL_op->op_type == OP_SYSREAD) {
1711 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1712 if (IoTYPE(io) == IoTYPE_SOCKET) {
1713 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1719 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1724 #ifdef HAS_SOCKET__bad_code_maybe
1725 if (IoTYPE(io) == IoTYPE_SOCKET) {
1726 char namebuf[MAXPATHLEN];
1727 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1728 bufsize = sizeof (struct sockaddr_in);
1730 bufsize = sizeof namebuf;
1732 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1733 (struct sockaddr *)namebuf, &bufsize);
1738 count = PerlIO_read(IoIFP(io), buffer, length);
1739 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1740 if (count == 0 && PerlIO_error(IoIFP(io)))
1744 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1745 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1748 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1749 *SvEND(read_target) = '\0';
1750 (void)SvPOK_only(read_target);
1751 if (fp_utf8 && !IN_BYTES) {
1752 /* Look at utf8 we got back and count the characters */
1753 const char *bend = buffer + count;
1754 while (buffer < bend) {
1756 skip = UTF8SKIP(buffer);
1759 if (buffer - charskip + skip > bend) {
1760 /* partial character - try for rest of it */
1761 length = skip - (bend-buffer);
1762 offset = bend - SvPVX_const(bufsv);
1774 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1775 provided amount read (count) was what was requested (length)
1777 if (got < wanted && count == length) {
1778 length = wanted - got;
1779 offset = bend - SvPVX_const(bufsv);
1782 /* return value is character count */
1786 else if (buffer_utf8) {
1787 /* Let svcatsv upgrade the bytes we read in to utf8.
1788 The buffer is a mortal so will be freed soon. */
1789 sv_catsv_nomg(bufsv, read_target);
1792 /* This should not be marked tainted if the fp is marked clean */
1793 if (!(IoFLAGS(io) & IOf_UNTAINT))
1794 SvTAINTED_on(bufsv);
1807 const int items = (SP - PL_stack_base) - TOPMARK;
1811 sv = sv_2mortal(newSViv(sv_len(*SP)));
1820 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1831 if (PL_op->op_type == OP_SYSWRITE
1832 && gv && (io = GvIO(gv))
1833 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1838 *MARK = SvTIED_obj((SV*)io, mg);
1840 call_method("WRITE", G_SCALAR);
1851 #if Size_t_size > IVSIZE
1852 length = (Size_t)SvNVx(*++MARK);
1854 length = (Size_t)SvIVx(*++MARK);
1856 if ((SSize_t)length < 0)
1857 DIE(aTHX_ "Negative length");
1860 if (!io || !IoIFP(io)) {
1862 if (ckWARN(WARN_CLOSED))
1863 report_evil_fh(gv, io, PL_op->op_type);
1864 SETERRNO(EBADF,RMS_IFI);
1868 if (PerlIO_isutf8(IoIFP(io))) {
1869 if (!SvUTF8(bufsv)) {
1870 bufsv = sv_2mortal(newSVsv(bufsv));
1871 buffer = sv_2pvutf8(bufsv, &blen);
1873 buffer = SvPV_const(bufsv, blen);
1876 if (DO_UTF8(bufsv)) {
1877 /* Not modifying source SV, so making a temporary copy. */
1878 bufsv = sv_2mortal(newSVsv(bufsv));
1879 sv_utf8_downgrade(bufsv, FALSE);
1881 buffer = SvPV_const(bufsv, blen);
1884 if (PL_op->op_type == OP_SYSWRITE) {
1886 if (DO_UTF8(bufsv)) {
1887 /* length and offset are in chars */
1888 blen = sv_len_utf8(bufsv);
1891 offset = SvIVx(*++MARK);
1893 if (-offset > (IV)blen)
1894 DIE(aTHX_ "Offset outside string");
1896 } else if (offset >= (IV)blen && blen > 0)
1897 DIE(aTHX_ "Offset outside string");
1900 if (length > blen - offset)
1901 length = blen - offset;
1902 if (DO_UTF8(bufsv)) {
1903 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1904 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1907 buffer = buffer+offset;
1909 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1910 if (IoTYPE(io) == IoTYPE_SOCKET) {
1911 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1917 /* See the note at doio.c:do_print about filesize limits. --jhi */
1918 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1923 else if (SP > MARK) {
1925 char * const sockbuf = SvPVx(*++MARK, mlen);
1926 /* length is really flags */
1927 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1928 length, (struct sockaddr *)sockbuf, mlen);
1931 /* length is really flags */
1932 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1935 DIE(aTHX_ PL_no_sock_func, "send");
1941 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1942 #if Size_t_size > IVSIZE
1956 return pp_sysread();
1967 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1969 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1971 if (io && !IoIFP(io)) {
1972 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1974 IoFLAGS(io) &= ~IOf_START;
1975 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1976 sv_setpvn(GvSV(gv), "-", 1);
1977 SvSETMAGIC(GvSV(gv));
1979 else if (!nextargv(gv))
1984 gv = PL_last_in_gv; /* eof */
1987 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1989 if (gv && (io = GvIO(gv))
1990 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1993 XPUSHs(SvTIED_obj((SV*)io, mg));
1996 call_method("EOF", G_SCALAR);
2002 PUSHs(boolSV(!gv || do_eof(gv)));
2016 gv = PL_last_in_gv = (GV*)POPs;
2018 if (gv && (io = GvIO(gv))
2019 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2022 XPUSHs(SvTIED_obj((SV*)io, mg));
2025 call_method("TELL", G_SCALAR);
2031 #if LSEEKSIZE > IVSIZE
2032 PUSHn( do_tell(gv) );
2034 PUSHi( do_tell(gv) );
2041 return pp_sysseek();
2049 const int whence = POPi;
2050 #if LSEEKSIZE > IVSIZE
2051 Off_t offset = (Off_t)SvNVx(POPs);
2053 Off_t offset = (Off_t)SvIVx(POPs);
2057 gv = PL_last_in_gv = (GV*)POPs;
2059 if (gv && (io = GvIO(gv))
2060 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2063 XPUSHs(SvTIED_obj((SV*)io, mg));
2064 #if LSEEKSIZE > IVSIZE
2065 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2067 XPUSHs(sv_2mortal(newSViv(offset)));
2069 XPUSHs(sv_2mortal(newSViv(whence)));
2072 call_method("SEEK", G_SCALAR);
2078 if (PL_op->op_type == OP_SEEK)
2079 PUSHs(boolSV(do_seek(gv, offset, whence)));
2081 Off_t sought = do_sysseek(gv, offset, whence);
2083 PUSHs(&PL_sv_undef);
2086 #if LSEEKSIZE > IVSIZE
2091 : newSVpvn(zero_but_true, ZBTLEN);
2092 PUSHs(sv_2mortal(sv));
2101 /* There seems to be no consensus on the length type of truncate()
2102 * and ftruncate(), both off_t and size_t have supporters. In
2103 * general one would think that when using large files, off_t is
2104 * at least as wide as size_t, so using an off_t should be okay. */
2105 /* XXX Configure probe for the length type of *truncate() needed XXX */
2108 #if Off_t_size > IVSIZE
2113 /* Checking for length < 0 is problematic as the type might or
2114 * might not be signed: if it is not, clever compilers will moan. */
2115 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2122 if (PL_op->op_flags & OPf_SPECIAL) {
2123 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2132 TAINT_PROPER("truncate");
2133 if (!(fp = IoIFP(io))) {
2139 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2141 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2151 if (SvTYPE(sv) == SVt_PVGV) {
2152 tmpgv = (GV*)sv; /* *main::FRED for example */
2153 goto do_ftruncate_gv;
2155 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2156 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2157 goto do_ftruncate_gv;
2159 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2160 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2161 goto do_ftruncate_io;
2164 name = SvPV_nolen_const(sv);
2165 TAINT_PROPER("truncate");
2167 if (truncate(name, len) < 0)
2173 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2176 if (my_chsize(tmpfd, len) < 0)
2178 PerlLIO_close(tmpfd);
2187 SETERRNO(EBADF,RMS_IFI);
2201 const unsigned int func = POPu;
2202 const int optype = PL_op->op_type;
2206 IO *io = gv ? GvIOn(gv) : 0;
2208 if (!io || !argsv || !IoIFP(io)) {
2209 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2210 report_evil_fh(gv, io, PL_op->op_type);
2211 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2215 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2218 s = SvPV_force(argsv, len);
2219 need = IOCPARM_LEN(func);
2221 s = Sv_Grow(argsv, need + 1);
2222 SvCUR_set(argsv, need);
2225 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2228 retval = SvIV(argsv);
2229 s = INT2PTR(char*,retval); /* ouch */
2232 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2234 if (optype == OP_IOCTL)
2236 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2238 DIE(aTHX_ "ioctl is not implemented");
2242 DIE(aTHX_ "fcntl is not implemented");
2244 #if defined(OS2) && defined(__EMX__)
2245 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2247 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2251 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2253 if (s[SvCUR(argsv)] != 17)
2254 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2256 s[SvCUR(argsv)] = 0; /* put our null back */
2257 SvSETMAGIC(argsv); /* Assume it has changed */
2266 PUSHp(zero_but_true, ZBTLEN);
2287 if (gv && (io = GvIO(gv)))
2294 (void)PerlIO_flush(fp);
2295 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2298 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2299 report_evil_fh(gv, io, PL_op->op_type);
2301 SETERRNO(EBADF,RMS_IFI);
2306 DIE(aTHX_ PL_no_func, "flock()");
2318 int protocol = POPi;
2324 io = gv ? GvIOn(gv) : NULL;
2327 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2328 report_evil_fh(gv, io, PL_op->op_type);
2330 do_close(gv, FALSE);
2331 SETERRNO(EBADF,LIB_INVARG);
2336 do_close(gv, FALSE);
2338 TAINT_PROPER("socket");
2339 fd = PerlSock_socket(domain, type, protocol);
2342 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2343 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2344 IoTYPE(io) = IoTYPE_SOCKET;
2345 if (!IoIFP(io) || !IoOFP(io)) {
2346 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2347 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2348 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2351 #if defined(HAS_FCNTL) && defined(F_SETFD)
2352 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2356 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2361 DIE(aTHX_ PL_no_sock_func, "socket");
2367 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2373 int protocol = POPi;
2380 io1 = gv1 ? GvIOn(gv1) : NULL;
2381 io2 = gv2 ? GvIOn(gv2) : NULL;
2382 if (!gv1 || !gv2 || !io1 || !io2) {
2383 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2385 report_evil_fh(gv1, io1, PL_op->op_type);
2387 report_evil_fh(gv1, io2, PL_op->op_type);
2390 do_close(gv1, FALSE);
2392 do_close(gv2, FALSE);
2397 do_close(gv1, FALSE);
2399 do_close(gv2, FALSE);
2401 TAINT_PROPER("socketpair");
2402 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2404 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2405 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2406 IoTYPE(io1) = IoTYPE_SOCKET;
2407 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2408 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2409 IoTYPE(io2) = IoTYPE_SOCKET;
2410 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2411 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2412 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2413 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2414 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2415 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2416 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2419 #if defined(HAS_FCNTL) && defined(F_SETFD)
2420 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2421 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2426 DIE(aTHX_ PL_no_sock_func, "socketpair");
2434 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2435 extern void GETPRIVMODE();
2436 extern void GETUSERMODE();
2439 /* OK, so on what platform does bind modify addr? */
2442 register IO *io = GvIOn(gv);
2446 int mpeprivmode = 0;
2449 if (!io || !IoIFP(io))
2452 addr = SvPV_const(addrsv, len);
2453 TAINT_PROPER("bind");
2454 #ifdef MPE /* Deal with MPE bind() peculiarities */
2455 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2456 /* The address *MUST* stupidly be zero. */
2457 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2458 /* PRIV mode is required to bind() to ports < 1024. */
2459 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2460 ((struct sockaddr_in *)addr)->sin_port > 0) {
2461 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2466 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2467 (struct sockaddr *)addr, len) >= 0)
2470 #ifdef MPE /* Switch back to USER mode */
2481 if (ckWARN(WARN_CLOSED))
2482 report_evil_fh(gv, io, PL_op->op_type);
2483 SETERRNO(EBADF,SS_IVCHAN);
2486 DIE(aTHX_ PL_no_sock_func, "bind");
2497 register IO *io = GvIOn(gv);
2500 if (!io || !IoIFP(io))
2503 addr = SvPV_const(addrsv, len);
2504 TAINT_PROPER("connect");
2505 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2511 if (ckWARN(WARN_CLOSED))
2512 report_evil_fh(gv, io, PL_op->op_type);
2513 SETERRNO(EBADF,SS_IVCHAN);
2516 DIE(aTHX_ PL_no_sock_func, "connect");
2526 register IO *io = gv ? GvIOn(gv) : NULL;
2528 if (!gv || !io || !IoIFP(io))
2531 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2537 if (ckWARN(WARN_CLOSED))
2538 report_evil_fh(gv, io, PL_op->op_type);
2539 SETERRNO(EBADF,SS_IVCHAN);
2542 DIE(aTHX_ PL_no_sock_func, "listen");
2554 char namebuf[MAXPATHLEN];
2555 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2556 Sock_size_t len = sizeof (struct sockaddr_in);
2558 Sock_size_t len = sizeof namebuf;
2571 if (!gstio || !IoIFP(gstio))
2575 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2579 do_close(ngv, FALSE);
2580 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2581 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2582 IoTYPE(nstio) = IoTYPE_SOCKET;
2583 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2584 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2585 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2586 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2589 #if defined(HAS_FCNTL) && defined(F_SETFD)
2590 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2594 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2595 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2597 #ifdef __SCO_VERSION__
2598 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2601 PUSHp(namebuf, len);
2605 if (ckWARN(WARN_CLOSED))
2606 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2607 SETERRNO(EBADF,SS_IVCHAN);
2613 DIE(aTHX_ PL_no_sock_func, "accept");
2623 register IO *io = GvIOn(gv);
2625 if (!io || !IoIFP(io))
2628 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2632 if (ckWARN(WARN_CLOSED))
2633 report_evil_fh(gv, io, PL_op->op_type);
2634 SETERRNO(EBADF,SS_IVCHAN);
2637 DIE(aTHX_ PL_no_sock_func, "shutdown");
2644 return pp_ssockopt();
2646 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2654 int optype = PL_op->op_type;
2657 unsigned int optname;
2663 if (optype == OP_GSOCKOPT)
2664 sv = sv_2mortal(NEWSV(22, 257));
2667 optname = (unsigned int) POPi;
2668 lvl = (unsigned int) POPi;
2672 if (!io || !IoIFP(io))
2675 fd = PerlIO_fileno(IoIFP(io));
2679 (void)SvPOK_only(sv);
2683 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2694 buf = SvPV_const(sv, l);
2698 aint = (int)SvIV(sv);
2699 buf = (const char*)&aint;
2702 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2711 if (ckWARN(WARN_CLOSED))
2712 report_evil_fh(gv, io, optype);
2713 SETERRNO(EBADF,SS_IVCHAN);
2718 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2725 return pp_getpeername();
2727 DIE(aTHX_ PL_no_sock_func, "getsockname");
2735 int optype = PL_op->op_type;
2739 register IO *io = GvIOn(gv);
2742 if (!io || !IoIFP(io))
2745 sv = sv_2mortal(NEWSV(22, 257));
2746 (void)SvPOK_only(sv);
2750 fd = PerlIO_fileno(IoIFP(io));
2752 case OP_GETSOCKNAME:
2753 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2756 case OP_GETPEERNAME:
2757 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2759 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2761 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";
2762 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2763 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2764 !memcmp((char *)SvPVX_const(sv) + sizeof(u_short), nowhere,
2765 sizeof(u_short) + sizeof(struct in_addr))) {
2772 #ifdef BOGUS_GETNAME_RETURN
2773 /* Interactive Unix, getpeername() and getsockname()
2774 does not return valid namelen */
2775 if (len == BOGUS_GETNAME_RETURN)
2776 len = sizeof(struct sockaddr);
2784 if (ckWARN(WARN_CLOSED))
2785 report_evil_fh(gv, io, optype);
2786 SETERRNO(EBADF,SS_IVCHAN);
2791 DIE(aTHX_ PL_no_sock_func, "getpeername");
2809 if (PL_op->op_flags & OPf_REF) {
2811 if (PL_op->op_type == OP_LSTAT) {
2812 if (gv != PL_defgv) {
2813 if (ckWARN(WARN_IO))
2814 Perl_warner(aTHX_ packWARN(WARN_IO),
2815 "lstat() on filehandle %s", GvENAME(gv));
2816 } else if (PL_laststype != OP_LSTAT)
2817 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2821 if (gv != PL_defgv) {
2822 PL_laststype = OP_STAT;
2824 sv_setpvn(PL_statname, "", 0);
2825 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2826 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2828 if (PL_laststatval < 0) {
2829 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2830 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2836 if (SvTYPE(sv) == SVt_PVGV) {
2840 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2842 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2843 Perl_warner(aTHX_ packWARN(WARN_IO),
2844 "lstat() on filehandle %s", GvENAME(gv));
2847 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2849 PL_laststype = PL_op->op_type;
2850 if (PL_op->op_type == OP_LSTAT)
2851 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2853 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2854 if (PL_laststatval < 0) {
2855 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2856 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2862 if (gimme != G_ARRAY) {
2863 if (gimme != G_VOID)
2864 XPUSHs(boolSV(max));
2870 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2872 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2873 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2874 #if Uid_t_size > IVSIZE
2875 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2877 # if Uid_t_sign <= 0
2878 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2880 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2883 #if Gid_t_size > IVSIZE
2884 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2886 # if Gid_t_sign <= 0
2887 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2889 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2892 #ifdef USE_STAT_RDEV
2893 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2895 PUSHs(sv_2mortal(newSVpvn("", 0)));
2897 #if Off_t_size > IVSIZE
2898 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2900 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2903 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2904 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2905 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2907 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2908 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2909 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2911 #ifdef USE_STAT_BLOCKS
2912 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2913 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2915 PUSHs(sv_2mortal(newSVpvn("", 0)));
2916 PUSHs(sv_2mortal(newSVpvn("", 0)));
2922 /* This macro is used by the stacked filetest operators :
2923 * if the previous filetest failed, short-circuit and pass its value.
2924 * Else, discard it from the stack and continue. --rgs
2926 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2927 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2928 else { (void)POPs; PUTBACK; } \
2935 STACKED_FTEST_CHECK;
2936 #if defined(HAS_ACCESS) && defined(R_OK)
2937 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2938 result = access(POPpx, R_OK);
2953 if (cando(S_IRUSR, 0, &PL_statcache))
2962 STACKED_FTEST_CHECK;
2963 #if defined(HAS_ACCESS) && defined(W_OK)
2964 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2965 result = access(POPpx, W_OK);
2980 if (cando(S_IWUSR, 0, &PL_statcache))
2989 STACKED_FTEST_CHECK;
2990 #if defined(HAS_ACCESS) && defined(X_OK)
2991 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2992 result = access(POPpx, X_OK);
3007 if (cando(S_IXUSR, 0, &PL_statcache))
3016 STACKED_FTEST_CHECK;
3017 #ifdef PERL_EFF_ACCESS_R_OK
3018 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3019 result = PERL_EFF_ACCESS_R_OK(POPpx);
3034 if (cando(S_IRUSR, 1, &PL_statcache))
3043 STACKED_FTEST_CHECK;
3044 #ifdef PERL_EFF_ACCESS_W_OK
3045 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3046 result = PERL_EFF_ACCESS_W_OK(POPpx);
3061 if (cando(S_IWUSR, 1, &PL_statcache))
3070 STACKED_FTEST_CHECK;
3071 #ifdef PERL_EFF_ACCESS_X_OK
3072 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3073 result = PERL_EFF_ACCESS_X_OK(POPpx);
3088 if (cando(S_IXUSR, 1, &PL_statcache))
3097 STACKED_FTEST_CHECK;
3107 return pp_ftrowned();
3114 STACKED_FTEST_CHECK;
3119 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3129 STACKED_FTEST_CHECK;
3134 if (PL_statcache.st_size == 0)
3143 STACKED_FTEST_CHECK;
3148 #if Off_t_size > IVSIZE
3149 PUSHn(PL_statcache.st_size);
3151 PUSHi(PL_statcache.st_size);
3160 STACKED_FTEST_CHECK;
3165 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3173 STACKED_FTEST_CHECK;
3178 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3186 STACKED_FTEST_CHECK;
3191 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3199 STACKED_FTEST_CHECK;
3204 if (S_ISSOCK(PL_statcache.st_mode))
3213 STACKED_FTEST_CHECK;
3218 if (S_ISCHR(PL_statcache.st_mode))
3227 STACKED_FTEST_CHECK;
3232 if (S_ISBLK(PL_statcache.st_mode))
3241 STACKED_FTEST_CHECK;
3246 if (S_ISREG(PL_statcache.st_mode))
3255 STACKED_FTEST_CHECK;
3260 if (S_ISDIR(PL_statcache.st_mode))
3269 STACKED_FTEST_CHECK;
3274 if (S_ISFIFO(PL_statcache.st_mode))
3281 I32 result = my_lstat();
3285 if (S_ISLNK(PL_statcache.st_mode))
3295 STACKED_FTEST_CHECK;
3300 if (PL_statcache.st_mode & S_ISUID)
3311 STACKED_FTEST_CHECK;
3316 if (PL_statcache.st_mode & S_ISGID)
3327 STACKED_FTEST_CHECK;
3332 if (PL_statcache.st_mode & S_ISVTX)
3345 STACKED_FTEST_CHECK;
3347 if (PL_op->op_flags & OPf_REF)
3349 else if (isGV(TOPs))
3351 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3352 gv = (GV*)SvRV(POPs);
3354 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3356 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3357 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3358 else if (tmpsv && SvOK(tmpsv)) {
3359 const char *tmps = SvPV_nolen_const(tmpsv);
3367 if (PerlLIO_isatty(fd))
3372 #if defined(atarist) /* this will work with atariST. Configure will
3373 make guesses for other systems. */
3374 # define FILE_base(f) ((f)->_base)
3375 # define FILE_ptr(f) ((f)->_ptr)
3376 # define FILE_cnt(f) ((f)->_cnt)
3377 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3387 register STDCHAR *s;
3393 STACKED_FTEST_CHECK;
3395 if (PL_op->op_flags & OPf_REF)
3397 else if (isGV(TOPs))
3399 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3400 gv = (GV*)SvRV(POPs);
3406 if (gv == PL_defgv) {
3408 io = GvIO(PL_statgv);
3411 goto really_filename;
3416 PL_laststatval = -1;
3417 sv_setpvn(PL_statname, "", 0);
3418 io = GvIO(PL_statgv);
3420 if (io && IoIFP(io)) {
3421 if (! PerlIO_has_base(IoIFP(io)))
3422 DIE(aTHX_ "-T and -B not implemented on filehandles");
3423 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3424 if (PL_laststatval < 0)
3426 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3427 if (PL_op->op_type == OP_FTTEXT)
3432 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3433 i = PerlIO_getc(IoIFP(io));
3435 (void)PerlIO_ungetc(IoIFP(io),i);
3437 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3439 len = PerlIO_get_bufsiz(IoIFP(io));
3440 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3441 /* sfio can have large buffers - limit to 512 */
3446 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3448 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3450 SETERRNO(EBADF,RMS_IFI);
3458 PL_laststype = OP_STAT;
3459 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3460 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3461 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3463 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3466 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3467 if (PL_laststatval < 0) {
3468 (void)PerlIO_close(fp);
3471 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3472 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3473 (void)PerlIO_close(fp);
3475 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3476 RETPUSHNO; /* special case NFS directories */
3477 RETPUSHYES; /* null file is anything */
3482 /* now scan s to look for textiness */
3483 /* XXX ASCII dependent code */
3485 #if defined(DOSISH) || defined(USEMYBINMODE)
3486 /* ignore trailing ^Z on short files */
3487 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3491 for (i = 0; i < len; i++, s++) {
3492 if (!*s) { /* null never allowed in text */
3497 else if (!(isPRINT(*s) || isSPACE(*s)))
3500 else if (*s & 128) {
3502 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3505 /* utf8 characters don't count as odd */
3506 if (UTF8_IS_START(*s)) {
3507 int ulen = UTF8SKIP(s);
3508 if (ulen < len - i) {
3510 for (j = 1; j < ulen; j++) {
3511 if (!UTF8_IS_CONTINUATION(s[j]))
3514 --ulen; /* loop does extra increment */
3524 *s != '\n' && *s != '\r' && *s != '\b' &&
3525 *s != '\t' && *s != '\f' && *s != 27)
3530 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3554 if( !tmps || !*tmps ) {
3555 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3556 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3558 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3563 deprecate("chdir('') or chdir(undef) as chdir()");
3564 tmps = SvPV_nolen_const(*svp);
3568 TAINT_PROPER("chdir");
3573 TAINT_PROPER("chdir");
3574 PUSHi( PerlDir_chdir(tmps) >= 0 );
3576 /* Clear the DEFAULT element of ENV so we'll get the new value
3578 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3586 dSP; dMARK; dTARGET;
3587 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3593 DIE(aTHX_ PL_no_func, "chown");
3602 TAINT_PROPER("chroot");
3603 PUSHi( chroot(tmps) >= 0 );
3606 DIE(aTHX_ PL_no_func, "chroot");
3612 dSP; dMARK; dTARGET;
3614 value = (I32)apply(PL_op->op_type, MARK, SP);
3622 dSP; dMARK; dTARGET;
3624 value = (I32)apply(PL_op->op_type, MARK, SP);
3632 dSP; dMARK; dTARGET;
3634 value = (I32)apply(PL_op->op_type, MARK, SP);
3644 const char *tmps2 = POPpconstx;
3645 const char *tmps = SvPV_nolen_const(TOPs);
3646 TAINT_PROPER("rename");
3648 anum = PerlLIO_rename(tmps, tmps2);
3650 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3651 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3654 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3655 (void)UNLINK(tmps2);
3656 if (!(anum = link(tmps, tmps2)))
3657 anum = UNLINK(tmps);
3669 const char *tmps2 = POPpconstx;
3670 const char *tmps = SvPV_nolen_const(TOPs);
3671 TAINT_PROPER("link");
3672 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3675 DIE(aTHX_ PL_no_func, "link");
3683 const char *tmps2 = POPpconstx;
3684 const char *tmps = SvPV_nolen_const(TOPs);
3685 TAINT_PROPER("symlink");
3686 SETi( symlink(tmps, tmps2) >= 0 );
3689 DIE(aTHX_ PL_no_func, "symlink");
3699 char buf[MAXPATHLEN];
3702 #ifndef INCOMPLETE_TAINTS
3706 len = readlink(tmps, buf, sizeof(buf) - 1);
3714 RETSETUNDEF; /* just pretend it's a normal file */
3718 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3720 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3722 char * const save_filename = filename;
3728 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3729 strcpy(cmdline, cmd);
3730 strcat(cmdline, " ");
3731 for (s = cmdline + strlen(cmdline); *filename; ) {
3736 myfp = PerlProc_popen(cmdline, "r");
3740 SV *tmpsv = sv_newmortal();
3741 /* Need to save/restore 'PL_rs' ?? */
3742 s = sv_gets(tmpsv, myfp, 0);
3743 (void)PerlProc_pclose(myfp);
3747 #ifdef HAS_SYS_ERRLIST
3752 /* you don't see this */
3754 #ifdef HAS_SYS_ERRLIST
3762 if (instr(s, errmsg)) {
3769 #define EACCES EPERM
3771 if (instr(s, "cannot make"))
3772 SETERRNO(EEXIST,RMS_FEX);
3773 else if (instr(s, "existing file"))
3774 SETERRNO(EEXIST,RMS_FEX);
3775 else if (instr(s, "ile exists"))
3776 SETERRNO(EEXIST,RMS_FEX);
3777 else if (instr(s, "non-exist"))
3778 SETERRNO(ENOENT,RMS_FNF);
3779 else if (instr(s, "does not exist"))
3780 SETERRNO(ENOENT,RMS_FNF);
3781 else if (instr(s, "not empty"))
3782 SETERRNO(EBUSY,SS_DEVOFFLINE);
3783 else if (instr(s, "cannot access"))
3784 SETERRNO(EACCES,RMS_PRV);
3786 SETERRNO(EPERM,RMS_PRV);
3789 else { /* some mkdirs return no failure indication */
3790 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3791 if (PL_op->op_type == OP_RMDIR)
3796 SETERRNO(EACCES,RMS_PRV); /* a guess */
3805 /* This macro removes trailing slashes from a directory name.
3806 * Different operating and file systems take differently to
3807 * trailing slashes. According to POSIX 1003.1 1996 Edition
3808 * any number of trailing slashes should be allowed.
3809 * Thusly we snip them away so that even non-conforming
3810 * systems are happy.
3811 * We should probably do this "filtering" for all
3812 * the functions that expect (potentially) directory names:
3813 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3814 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3816 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3817 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3820 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3821 (tmps) = savepvn((tmps), (len)); \
3841 TRIMSLASHES(tmps,len,copy);
3843 TAINT_PROPER("mkdir");
3845 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3847 SETi( dooneliner("mkdir", tmps) );
3848 oldumask = PerlLIO_umask(0);
3849 PerlLIO_umask(oldumask);
3850 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3864 TRIMSLASHES(tmps,len,copy);
3865 TAINT_PROPER("rmdir");
3867 SETi( PerlDir_rmdir(tmps) >= 0 );
3869 SETi( dooneliner("rmdir", tmps) );
3876 /* Directory calls. */
3880 #if defined(Direntry_t) && defined(HAS_READDIR)
3882 const char *dirname = POPpconstx;
3884 register IO *io = GvIOn(gv);
3890 PerlDir_close(IoDIRP(io));
3891 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3897 SETERRNO(EBADF,RMS_DIR);
3900 DIE(aTHX_ PL_no_dir_func, "opendir");
3906 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3907 DIE(aTHX_ PL_no_dir_func, "readdir");
3909 #if !defined(I_DIRENT) && !defined(VMS)
3910 Direntry_t *readdir (DIR *);
3915 const I32 gimme = GIMME;
3916 GV *gv = (GV *)POPs;
3917 register Direntry_t *dp;
3918 register IO *io = GvIOn(gv);
3920 if (!io || !IoDIRP(io))
3924 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3928 sv = newSVpvn(dp->d_name, dp->d_namlen);
3930 sv = newSVpv(dp->d_name, 0);
3932 #ifndef INCOMPLETE_TAINTS
3933 if (!(IoFLAGS(io) & IOf_UNTAINT))
3936 XPUSHs(sv_2mortal(sv));
3938 while (gimme == G_ARRAY);
3940 if (!dp && gimme != G_ARRAY)
3947 SETERRNO(EBADF,RMS_ISI);
3948 if (GIMME == G_ARRAY)
3957 #if defined(HAS_TELLDIR) || defined(telldir)
3959 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3960 /* XXX netbsd still seemed to.
3961 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3962 --JHI 1999-Feb-02 */
3963 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3964 long telldir (DIR *);
3967 register IO *io = GvIOn(gv);
3969 if (!io || !IoDIRP(io))
3972 PUSHi( PerlDir_tell(IoDIRP(io)) );
3976 SETERRNO(EBADF,RMS_ISI);
3979 DIE(aTHX_ PL_no_dir_func, "telldir");
3985 #if defined(HAS_SEEKDIR) || defined(seekdir)
3989 register IO *io = GvIOn(gv);
3991 if (!io || !IoDIRP(io))
3994 (void)PerlDir_seek(IoDIRP(io), along);
3999 SETERRNO(EBADF,RMS_ISI);
4002 DIE(aTHX_ PL_no_dir_func, "seekdir");
4008 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4011 register IO *io = GvIOn(gv);
4013 if (!io || !IoDIRP(io))
4016 (void)PerlDir_rewind(IoDIRP(io));
4020 SETERRNO(EBADF,RMS_ISI);
4023 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4029 #if defined(Direntry_t) && defined(HAS_READDIR)
4032 register IO *io = GvIOn(gv);
4034 if (!io || !IoDIRP(io))
4037 #ifdef VOID_CLOSEDIR
4038 PerlDir_close(IoDIRP(io));
4040 if (PerlDir_close(IoDIRP(io)) < 0) {
4041 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4050 SETERRNO(EBADF,RMS_IFI);
4053 DIE(aTHX_ PL_no_dir_func, "closedir");
4057 /* Process control. */
4067 PERL_FLUSHALL_FOR_CHILD;
4068 childpid = PerlProc_fork();
4072 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4073 SvREADONLY_off(GvSV(tmpgv));
4074 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4075 SvREADONLY_on(GvSV(tmpgv));
4077 #ifdef THREADS_HAVE_PIDS
4078 PL_ppid = (IV)getppid();
4080 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4085 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4090 PERL_FLUSHALL_FOR_CHILD;
4091 childpid = PerlProc_fork();
4097 DIE(aTHX_ PL_no_func, "fork");
4104 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4109 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4110 childpid = wait4pid(-1, &argflags, 0);
4112 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4117 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4118 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4119 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4121 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4126 DIE(aTHX_ PL_no_func, "wait");
4132 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4141 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4142 result = wait4pid(pid, &argflags, optype);
4144 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4149 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4150 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4151 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4153 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4158 DIE(aTHX_ PL_no_func, "waitpid");
4164 dSP; dMARK; dORIGMARK; dTARGET;
4170 while (++MARK <= SP) {
4171 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4176 TAINT_PROPER("system");
4178 PERL_FLUSHALL_FOR_CHILD;
4179 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4185 if (PerlProc_pipe(pp) >= 0)
4187 while ((childpid = PerlProc_fork()) == -1) {
4188 if (errno != EAGAIN) {
4193 PerlLIO_close(pp[0]);
4194 PerlLIO_close(pp[1]);
4201 Sigsave_t ihand,qhand; /* place to save signals during system() */
4205 PerlLIO_close(pp[1]);
4207 rsignal_save(SIGINT, SIG_IGN, &ihand);
4208 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4211 result = wait4pid(childpid, &status, 0);
4212 } while (result == -1 && errno == EINTR);
4214 (void)rsignal_restore(SIGINT, &ihand);
4215 (void)rsignal_restore(SIGQUIT, &qhand);
4217 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4218 do_execfree(); /* free any memory child malloced on fork */
4224 while (n < sizeof(int)) {
4225 n1 = PerlLIO_read(pp[0],
4226 (void*)(((char*)&errkid)+n),
4232 PerlLIO_close(pp[0]);
4233 if (n) { /* Error */
4234 if (n != sizeof(int))
4235 DIE(aTHX_ "panic: kid popen errno read");
4236 errno = errkid; /* Propagate errno from kid */
4237 STATUS_CURRENT = -1;
4240 PUSHi(STATUS_CURRENT);
4244 PerlLIO_close(pp[0]);
4245 #if defined(HAS_FCNTL) && defined(F_SETFD)
4246 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4249 if (PL_op->op_flags & OPf_STACKED) {
4250 SV *really = *++MARK;
4251 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4253 else if (SP - MARK != 1)
4254 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4256 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4260 #else /* ! FORK or VMS or OS/2 */
4263 if (PL_op->op_flags & OPf_STACKED) {
4264 SV *really = *++MARK;
4265 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4266 value = (I32)do_aspawn(really, MARK, SP);
4268 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4271 else if (SP - MARK != 1) {
4272 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4273 value = (I32)do_aspawn(Nullsv, MARK, SP);
4275 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4279 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4281 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4283 STATUS_NATIVE_SET(value);
4286 PUSHi(result ? value : STATUS_CURRENT);
4287 #endif /* !FORK or VMS */
4293 dSP; dMARK; dORIGMARK; dTARGET;
4298 while (++MARK <= SP) {
4299 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4304 TAINT_PROPER("exec");
4306 PERL_FLUSHALL_FOR_CHILD;
4307 if (PL_op->op_flags & OPf_STACKED) {
4308 SV *really = *++MARK;
4309 value = (I32)do_aexec(really, MARK, SP);
4311 else if (SP - MARK != 1)
4313 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4317 (void ) do_aspawn(Nullsv, MARK, SP);
4321 value = (I32)do_aexec(Nullsv, MARK, SP);
4326 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4329 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4332 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4345 dSP; dMARK; dTARGET;
4347 value = (I32)apply(PL_op->op_type, MARK, SP);
4352 DIE(aTHX_ PL_no_func, "kill");
4360 # ifdef THREADS_HAVE_PIDS
4361 if (PL_ppid != 1 && getppid() == 1)
4362 /* maybe the parent process has died. Refresh ppid cache */
4366 XPUSHi( getppid() );
4370 DIE(aTHX_ PL_no_func, "getppid");
4386 pgrp = (I32)BSD_GETPGRP(pid);
4388 if (pid != 0 && pid != PerlProc_getpid())
4389 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4395 DIE(aTHX_ PL_no_func, "getpgrp()");
4414 TAINT_PROPER("setpgrp");
4416 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4418 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4419 || (pid != 0 && pid != PerlProc_getpid()))
4421 DIE(aTHX_ "setpgrp can't take arguments");
4423 SETi( setpgrp() >= 0 );
4424 #endif /* USE_BSDPGRP */
4427 DIE(aTHX_ PL_no_func, "setpgrp()");
4433 #ifdef HAS_GETPRIORITY
4437 SETi( getpriority(which, who) );
4440 DIE(aTHX_ PL_no_func, "getpriority()");
4446 #ifdef HAS_SETPRIORITY
4451 TAINT_PROPER("setpriority");
4452 SETi( setpriority(which, who, niceval) >= 0 );
4455 DIE(aTHX_ PL_no_func, "setpriority()");
4465 XPUSHn( time(Null(Time_t*)) );
4467 XPUSHi( time(Null(Time_t*)) );
4478 (void)PerlProc_times(&PL_timesbuf);
4480 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4481 /* struct tms, though same data */
4485 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4486 if (GIMME == G_ARRAY) {
4487 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4488 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4489 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4495 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4497 if (GIMME == G_ARRAY) {
4498 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4499 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4500 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4504 DIE(aTHX_ "times not implemented");
4506 #endif /* HAS_TIMES */
4514 #ifdef LOCALTIME_EDGECASE_BROKEN
4515 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4520 /* No workarounds in the valid range */
4521 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4522 return (localtime (tp));
4524 /* This edge case is to workaround the undefined behaviour, where the
4525 * TIMEZONE makes the time go beyond the defined range.
4526 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4527 * If there is a negative offset in TZ, like MET-1METDST, some broken
4528 * implementations of localtime () (like AIX 5.2) barf with bogus
4530 * 0x7fffffff gmtime 2038-01-19 03:14:07
4531 * 0x7fffffff localtime 1901-12-13 21:45:51
4532 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4533 * 0x3c19137f gmtime 2001-12-13 20:45:51
4534 * 0x3c19137f localtime 2001-12-13 21:45:51
4535 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4536 * Given that legal timezones are typically between GMT-12 and GMT+12
4537 * we turn back the clock 23 hours before calling the localtime
4538 * function, and add those to the return value. This will never cause
4539 * day wrapping problems, since the edge case is Jan *19*
4541 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4544 if (P->tm_hour >= 24) {
4549 } /* S_my_localtime */
4556 const struct tm *tmbuf;
4557 static const char * const dayname[] =
4558 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4559 static const char * const monname[] =
4560 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4561 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4567 when = (Time_t)SvNVx(POPs);
4569 when = (Time_t)SvIVx(POPs);
4572 if (PL_op->op_type == OP_LOCALTIME)
4573 #ifdef LOCALTIME_EDGECASE_BROKEN
4574 tmbuf = S_my_localtime(aTHX_ &when);
4576 tmbuf = localtime(&when);
4579 tmbuf = gmtime(&when);
4581 if (GIMME != G_ARRAY) {
4587 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4588 dayname[tmbuf->tm_wday],
4589 monname[tmbuf->tm_mon],
4594 tmbuf->tm_year + 1900);
4595 PUSHs(sv_2mortal(tsv));
4600 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4601 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4602 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4603 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4604 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4605 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4606 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4607 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4608 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4619 anum = alarm((unsigned int)anum);
4626 DIE(aTHX_ PL_no_func, "alarm");
4637 (void)time(&lasttime);
4642 PerlProc_sleep((unsigned int)duration);
4645 XPUSHi(when - lasttime);
4649 /* Shared memory. */
4663 return pp_shmwrite();
4668 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4669 dSP; dMARK; dTARGET;
4670 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4679 /* Message passing. */
4693 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4694 dSP; dMARK; dTARGET;
4695 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4706 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4707 dSP; dMARK; dTARGET;
4708 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4721 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4722 dSP; dMARK; dTARGET;
4723 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4730 DIE(aTHX_ "System V IPC is not implemented on this machine");
4736 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4737 dSP; dMARK; dTARGET;
4738 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4746 PUSHp(zero_but_true, ZBTLEN);
4756 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4757 dSP; dMARK; dTARGET;
4758 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4767 /* Get system info. */
4771 #ifdef HAS_GETHOSTBYNAME
4772 return pp_ghostent();
4774 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4780 #ifdef HAS_GETHOSTBYADDR
4781 return pp_ghostent();
4783 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4789 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4791 I32 which = PL_op->op_type;
4792 register char **elem;
4794 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4795 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4796 struct hostent *gethostbyname(Netdb_name_t);
4797 struct hostent *gethostent(void);
4799 struct hostent *hent;
4803 if (which == OP_GHBYNAME) {
4804 #ifdef HAS_GETHOSTBYNAME
4805 char* name = POPpbytex;
4806 hent = PerlSock_gethostbyname(name);
4808 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4811 else if (which == OP_GHBYADDR) {
4812 #ifdef HAS_GETHOSTBYADDR
4813 int addrtype = POPi;
4816 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4818 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4820 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4824 #ifdef HAS_GETHOSTENT
4825 hent = PerlSock_gethostent();
4827 DIE(aTHX_ PL_no_sock_func, "gethostent");
4830 #ifdef HOST_NOT_FOUND
4832 #ifdef USE_REENTRANT_API
4833 # ifdef USE_GETHOSTENT_ERRNO
4834 h_errno = PL_reentrant_buffer->_gethostent_errno;
4837 STATUS_NATIVE_SET(h_errno);
4841 if (GIMME != G_ARRAY) {
4842 PUSHs(sv = sv_newmortal());
4844 if (which == OP_GHBYNAME) {
4846 sv_setpvn(sv, hent->h_addr, hent->h_length);
4849 sv_setpv(sv, (char*)hent->h_name);
4855 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4856 sv_setpv(sv, (char*)hent->h_name);
4857 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4858 for (elem = hent->h_aliases; elem && *elem; elem++) {
4859 sv_catpv(sv, *elem);
4861 sv_catpvn(sv, " ", 1);
4863 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4864 sv_setiv(sv, (IV)hent->h_addrtype);
4865 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4866 len = hent->h_length;
4867 sv_setiv(sv, (IV)len);
4869 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4870 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4871 sv_setpvn(sv, *elem, len);
4874 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4876 sv_setpvn(sv, hent->h_addr, len);
4881 DIE(aTHX_ PL_no_sock_func, "gethostent");
4887 #ifdef HAS_GETNETBYNAME
4888 return pp_gnetent();
4890 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4896 #ifdef HAS_GETNETBYADDR
4897 return pp_gnetent();
4899 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4905 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4907 I32 which = PL_op->op_type;
4908 register char **elem;
4910 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4911 struct netent *getnetbyaddr(Netdb_net_t, int);
4912 struct netent *getnetbyname(Netdb_name_t);
4913 struct netent *getnetent(void);
4915 struct netent *nent;
4917 if (which == OP_GNBYNAME){
4918 #ifdef HAS_GETNETBYNAME
4919 char *name = POPpbytex;
4920 nent = PerlSock_getnetbyname(name);
4922 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4925 else if (which == OP_GNBYADDR) {
4926 #ifdef HAS_GETNETBYADDR
4927 int addrtype = POPi;
4928 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4929 nent = PerlSock_getnetbyaddr(addr, addrtype);
4931 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4935 #ifdef HAS_GETNETENT
4936 nent = PerlSock_getnetent();
4938 DIE(aTHX_ PL_no_sock_func, "getnetent");
4941 #ifdef HOST_NOT_FOUND
4943 #ifdef USE_REENTRANT_API
4944 # ifdef USE_GETNETENT_ERRNO
4945 h_errno = PL_reentrant_buffer->_getnetent_errno;
4948 STATUS_NATIVE_SET(h_errno);
4953 if (GIMME != G_ARRAY) {
4954 PUSHs(sv = sv_newmortal());
4956 if (which == OP_GNBYNAME)
4957 sv_setiv(sv, (IV)nent->n_net);
4959 sv_setpv(sv, nent->n_name);
4965 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4966 sv_setpv(sv, nent->n_name);
4967 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4968 for (elem = nent->n_aliases; elem && *elem; elem++) {
4969 sv_catpv(sv, *elem);
4971 sv_catpvn(sv, " ", 1);
4973 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4974 sv_setiv(sv, (IV)nent->n_addrtype);
4975 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4976 sv_setiv(sv, (IV)nent->n_net);
4981 DIE(aTHX_ PL_no_sock_func, "getnetent");
4987 #ifdef HAS_GETPROTOBYNAME
4988 return pp_gprotoent();
4990 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4996 #ifdef HAS_GETPROTOBYNUMBER
4997 return pp_gprotoent();
4999 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5005 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
5007 I32 which = PL_op->op_type;
5008 register char **elem;
5010 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
5011 struct protoent *getprotobyname(Netdb_name_t);
5012 struct protoent *getprotobynumber(int);
5013 struct protoent *getprotoent(void);
5015 struct protoent *pent;
5017 if (which == OP_GPBYNAME) {
5018 #ifdef HAS_GETPROTOBYNAME
5019 char* name = POPpbytex;
5020 pent = PerlSock_getprotobyname(name);
5022 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5025 else if (which == OP_GPBYNUMBER) {
5026 #ifdef HAS_GETPROTOBYNUMBER
5028 pent = PerlSock_getprotobynumber(number);
5030 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5034 #ifdef HAS_GETPROTOENT
5035 pent = PerlSock_getprotoent();
5037 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5041 if (GIMME != G_ARRAY) {
5042 PUSHs(sv = sv_newmortal());
5044 if (which == OP_GPBYNAME)
5045 sv_setiv(sv, (IV)pent->p_proto);
5047 sv_setpv(sv, pent->p_name);
5053 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5054 sv_setpv(sv, pent->p_name);
5055 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5056 for (elem = pent->p_aliases; elem && *elem; elem++) {
5057 sv_catpv(sv, *elem);
5059 sv_catpvn(sv, " ", 1);
5061 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5062 sv_setiv(sv, (IV)pent->p_proto);
5067 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5073 #ifdef HAS_GETSERVBYNAME
5074 return pp_gservent();
5076 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5082 #ifdef HAS_GETSERVBYPORT
5083 return pp_gservent();
5085 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5091 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5093 I32 which = PL_op->op_type;
5094 register char **elem;
5096 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5097 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5098 struct servent *getservbyport(int, Netdb_name_t);
5099 struct servent *getservent(void);
5101 struct servent *sent;
5103 if (which == OP_GSBYNAME) {
5104 #ifdef HAS_GETSERVBYNAME
5105 char *proto = POPpbytex;
5106 char *name = POPpbytex;
5108 if (proto && !*proto)
5111 sent = PerlSock_getservbyname(name, proto);
5113 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5116 else if (which == OP_GSBYPORT) {
5117 #ifdef HAS_GETSERVBYPORT
5118 char *proto = POPpbytex;
5119 unsigned short port = (unsigned short)POPu;
5121 if (proto && !*proto)
5125 port = PerlSock_htons(port);
5127 sent = PerlSock_getservbyport(port, proto);
5129 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5133 #ifdef HAS_GETSERVENT
5134 sent = PerlSock_getservent();
5136 DIE(aTHX_ PL_no_sock_func, "getservent");
5140 if (GIMME != G_ARRAY) {
5141 PUSHs(sv = sv_newmortal());
5143 if (which == OP_GSBYNAME) {
5145 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5147 sv_setiv(sv, (IV)(sent->s_port));
5151 sv_setpv(sv, sent->s_name);
5157 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5158 sv_setpv(sv, sent->s_name);
5159 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5160 for (elem = sent->s_aliases; elem && *elem; elem++) {
5161 sv_catpv(sv, *elem);
5163 sv_catpvn(sv, " ", 1);
5165 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5167 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5169 sv_setiv(sv, (IV)(sent->s_port));
5171 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5172 sv_setpv(sv, sent->s_proto);
5177 DIE(aTHX_ PL_no_sock_func, "getservent");
5183 #ifdef HAS_SETHOSTENT
5185 PerlSock_sethostent(TOPi);
5188 DIE(aTHX_ PL_no_sock_func, "sethostent");
5194 #ifdef HAS_SETNETENT
5196 PerlSock_setnetent(TOPi);
5199 DIE(aTHX_ PL_no_sock_func, "setnetent");
5205 #ifdef HAS_SETPROTOENT
5207 PerlSock_setprotoent(TOPi);
5210 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5216 #ifdef HAS_SETSERVENT
5218 PerlSock_setservent(TOPi);
5221 DIE(aTHX_ PL_no_sock_func, "setservent");
5227 #ifdef HAS_ENDHOSTENT
5229 PerlSock_endhostent();
5233 DIE(aTHX_ PL_no_sock_func, "endhostent");
5239 #ifdef HAS_ENDNETENT
5241 PerlSock_endnetent();
5245 DIE(aTHX_ PL_no_sock_func, "endnetent");
5251 #ifdef HAS_ENDPROTOENT
5253 PerlSock_endprotoent();
5257 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5263 #ifdef HAS_ENDSERVENT
5265 PerlSock_endservent();
5269 DIE(aTHX_ PL_no_sock_func, "endservent");
5278 DIE(aTHX_ PL_no_func, "getpwnam");
5287 DIE(aTHX_ PL_no_func, "getpwuid");
5295 I32 which = PL_op->op_type;
5297 struct passwd *pwent = NULL;
5299 * We currently support only the SysV getsp* shadow password interface.
5300 * The interface is declared in <shadow.h> and often one needs to link
5301 * with -lsecurity or some such.
5302 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5305 * AIX getpwnam() is clever enough to return the encrypted password
5306 * only if the caller (euid?) is root.
5308 * There are at least three other shadow password APIs. Many platforms
5309 * seem to contain more than one interface for accessing the shadow
5310 * password databases, possibly for compatibility reasons.
5311 * The getsp*() is by far he simplest one, the other two interfaces
5312 * are much more complicated, but also very similar to each other.
5317 * struct pr_passwd *getprpw*();
5318 * The password is in
5319 * char getprpw*(...).ufld.fd_encrypt[]
5320 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5325 * struct es_passwd *getespw*();
5326 * The password is in
5327 * char *(getespw*(...).ufld.fd_encrypt)
5328 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5331 * struct userpw *getuserpw();
5332 * The password is in
5333 * char *(getuserpw(...)).spw_upw_passwd
5334 * (but the de facto standard getpwnam() should work okay)
5336 * Mention I_PROT here so that Configure probes for it.
5338 * In HP-UX for getprpw*() the manual page claims that one should include
5339 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5340 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5341 * and pp_sys.c already includes <shadow.h> if there is such.
5343 * Note that <sys/security.h> is already probed for, but currently
5344 * it is only included in special cases.
5346 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5347 * be preferred interface, even though also the getprpw*() interface
5348 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5349 * One also needs to call set_auth_parameters() in main() before
5350 * doing anything else, whether one is using getespw*() or getprpw*().
5352 * Note that accessing the shadow databases can be magnitudes
5353 * slower than accessing the standard databases.
5358 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5359 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5360 * the pw_comment is left uninitialized. */
5361 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5367 char* name = POPpbytex;
5368 pwent = getpwnam(name);
5374 pwent = getpwuid(uid);
5378 # ifdef HAS_GETPWENT
5380 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5381 if (pwent) pwent = getpwnam(pwent->pw_name);
5384 DIE(aTHX_ PL_no_func, "getpwent");
5390 if (GIMME != G_ARRAY) {
5391 PUSHs(sv = sv_newmortal());
5393 if (which == OP_GPWNAM)
5394 # if Uid_t_sign <= 0
5395 sv_setiv(sv, (IV)pwent->pw_uid);
5397 sv_setuv(sv, (UV)pwent->pw_uid);
5400 sv_setpv(sv, pwent->pw_name);
5406 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5407 sv_setpv(sv, pwent->pw_name);
5409 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5411 /* If we have getspnam(), we try to dig up the shadow
5412 * password. If we are underprivileged, the shadow
5413 * interface will set the errno to EACCES or similar,
5414 * and return a null pointer. If this happens, we will
5415 * use the dummy password (usually "*" or "x") from the
5416 * standard password database.
5418 * In theory we could skip the shadow call completely
5419 * if euid != 0 but in practice we cannot know which
5420 * security measures are guarding the shadow databases
5421 * on a random platform.
5423 * Resist the urge to use additional shadow interfaces.
5424 * Divert the urge to writing an extension instead.
5427 /* Some AIX setups falsely(?) detect some getspnam(), which
5428 * has a different API than the Solaris/IRIX one. */
5429 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5431 struct spwd *spwent;
5432 int saverrno; /* Save and restore errno so that
5433 * underprivileged attempts seem
5434 * to have never made the unsccessful
5435 * attempt to retrieve the shadow password. */
5438 spwent = getspnam(pwent->pw_name);
5440 if (spwent && spwent->sp_pwdp)
5441 sv_setpv(sv, spwent->sp_pwdp);
5445 if (!SvPOK(sv)) /* Use the standard password, then. */
5446 sv_setpv(sv, pwent->pw_passwd);
5449 # ifndef INCOMPLETE_TAINTS
5450 /* passwd is tainted because user himself can diddle with it.
5451 * admittedly not much and in a very limited way, but nevertheless. */
5455 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5456 # if Uid_t_sign <= 0
5457 sv_setiv(sv, (IV)pwent->pw_uid);
5459 sv_setuv(sv, (UV)pwent->pw_uid);
5462 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5463 # if Uid_t_sign <= 0
5464 sv_setiv(sv, (IV)pwent->pw_gid);
5466 sv_setuv(sv, (UV)pwent->pw_gid);
5468 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5469 * because of the poor interface of the Perl getpw*(),
5470 * not because there's some standard/convention saying so.
5471 * A better interface would have been to return a hash,
5472 * but we are accursed by our history, alas. --jhi. */
5473 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5475 sv_setiv(sv, (IV)pwent->pw_change);
5478 sv_setiv(sv, (IV)pwent->pw_quota);
5481 sv_setpv(sv, pwent->pw_age);
5486 /* pw_class and pw_comment are mutually exclusive--.
5487 * see the above note for pw_change, pw_quota, and pw_age. */
5488 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5490 sv_setpv(sv, pwent->pw_class);
5493 sv_setpv(sv, pwent->pw_comment);
5497 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5499 sv_setpv(sv, pwent->pw_gecos);
5501 # ifndef INCOMPLETE_TAINTS
5502 /* pw_gecos is tainted because user himself can diddle with it. */
5506 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5507 sv_setpv(sv, pwent->pw_dir);
5509 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5510 sv_setpv(sv, pwent->pw_shell);
5511 # ifndef INCOMPLETE_TAINTS
5512 /* pw_shell is tainted because user himself can diddle with it. */
5517 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5518 sv_setiv(sv, (IV)pwent->pw_expire);
5523 DIE(aTHX_ PL_no_func, "getpwent");
5529 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5534 DIE(aTHX_ PL_no_func, "setpwent");
5540 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5545 DIE(aTHX_ PL_no_func, "endpwent");
5554 DIE(aTHX_ PL_no_func, "getgrnam");
5563 DIE(aTHX_ PL_no_func, "getgrgid");
5571 I32 which = PL_op->op_type;
5572 register char **elem;
5574 struct group *grent;
5576 if (which == OP_GGRNAM) {
5577 char* name = POPpbytex;
5578 grent = (struct group *)getgrnam(name);
5580 else if (which == OP_GGRGID) {
5582 grent = (struct group *)getgrgid(gid);
5586 grent = (struct group *)getgrent();
5588 DIE(aTHX_ PL_no_func, "getgrent");
5592 if (GIMME != G_ARRAY) {
5593 PUSHs(sv = sv_newmortal());
5595 if (which == OP_GGRNAM)
5596 sv_setiv(sv, (IV)grent->gr_gid);
5598 sv_setpv(sv, grent->gr_name);
5604 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5605 sv_setpv(sv, grent->gr_name);
5607 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5609 sv_setpv(sv, grent->gr_passwd);
5612 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5613 sv_setiv(sv, (IV)grent->gr_gid);
5615 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5616 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5617 /* In UNICOS/mk (_CRAYMPP) the multithreading
5618 * versions (getgrnam_r, getgrgid_r)
5619 * seem to return an illegal pointer
5620 * as the group members list, gr_mem.
5621 * getgrent() doesn't even have a _r version
5622 * but the gr_mem is poisonous anyway.
5623 * So yes, you cannot get the list of group
5624 * members if building multithreaded in UNICOS/mk. */
5625 for (elem = grent->gr_mem; elem && *elem; elem++) {
5626 sv_catpv(sv, *elem);
5628 sv_catpvn(sv, " ", 1);
5635 DIE(aTHX_ PL_no_func, "getgrent");
5641 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5646 DIE(aTHX_ PL_no_func, "setgrent");
5652 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5657 DIE(aTHX_ PL_no_func, "endgrent");
5667 if (!(tmps = PerlProc_getlogin()))
5669 PUSHp(tmps, strlen(tmps));
5672 DIE(aTHX_ PL_no_func, "getlogin");
5676 /* Miscellaneous. */
5681 dSP; dMARK; dORIGMARK; dTARGET;
5682 register I32 items = SP - MARK;
5683 unsigned long a[20];
5688 while (++MARK <= SP) {
5689 if (SvTAINTED(*MARK)) {
5695 TAINT_PROPER("syscall");
5698 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5699 * or where sizeof(long) != sizeof(char*). But such machines will
5700 * not likely have syscall implemented either, so who cares?
5702 while (++MARK <= SP) {
5703 if (SvNIOK(*MARK) || !i)
5704 a[i++] = SvIV(*MARK);
5705 else if (*MARK == &PL_sv_undef)
5708 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5714 DIE(aTHX_ "Too many args to syscall");
5716 DIE(aTHX_ "Too few args to syscall");
5718 retval = syscall(a[0]);
5721 retval = syscall(a[0],a[1]);
5724 retval = syscall(a[0],a[1],a[2]);
5727 retval = syscall(a[0],a[1],a[2],a[3]);
5730 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5733 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5736 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5739 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5743 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5746 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5749 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5753 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5757 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5761 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5762 a[10],a[11],a[12],a[13]);
5764 #endif /* atarist */
5770 DIE(aTHX_ PL_no_func, "syscall");
5774 #ifdef FCNTL_EMULATE_FLOCK
5776 /* XXX Emulate flock() with fcntl().
5777 What's really needed is a good file locking module.
5781 fcntl_emulate_flock(int fd, int operation)
5785 switch (operation & ~LOCK_NB) {
5787 flock.l_type = F_RDLCK;
5790 flock.l_type = F_WRLCK;
5793 flock.l_type = F_UNLCK;
5799 flock.l_whence = SEEK_SET;
5800 flock.l_start = flock.l_len = (Off_t)0;
5802 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5805 #endif /* FCNTL_EMULATE_FLOCK */
5807 #ifdef LOCKF_EMULATE_FLOCK
5809 /* XXX Emulate flock() with lockf(). This is just to increase
5810 portability of scripts. The calls are not completely
5811 interchangeable. What's really needed is a good file
5815 /* The lockf() constants might have been defined in <unistd.h>.
5816 Unfortunately, <unistd.h> causes troubles on some mixed
5817 (BSD/POSIX) systems, such as SunOS 4.1.3.
5819 Further, the lockf() constants aren't POSIX, so they might not be
5820 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5821 just stick in the SVID values and be done with it. Sigh.
5825 # define F_ULOCK 0 /* Unlock a previously locked region */
5828 # define F_LOCK 1 /* Lock a region for exclusive use */
5831 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5834 # define F_TEST 3 /* Test a region for other processes locks */
5838 lockf_emulate_flock(int fd, int operation)
5844 /* flock locks entire file so for lockf we need to do the same */
5846 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5847 if (pos > 0) /* is seekable and needs to be repositioned */
5848 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5849 pos = -1; /* seek failed, so don't seek back afterwards */
5852 switch (operation) {
5854 /* LOCK_SH - get a shared lock */
5856 /* LOCK_EX - get an exclusive lock */
5858 i = lockf (fd, F_LOCK, 0);
5861 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5862 case LOCK_SH|LOCK_NB:
5863 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5864 case LOCK_EX|LOCK_NB:
5865 i = lockf (fd, F_TLOCK, 0);
5867 if ((errno == EAGAIN) || (errno == EACCES))
5868 errno = EWOULDBLOCK;
5871 /* LOCK_UN - unlock (non-blocking is a no-op) */
5873 case LOCK_UN|LOCK_NB:
5874 i = lockf (fd, F_ULOCK, 0);
5877 /* Default - can't decipher operation */
5884 if (pos > 0) /* need to restore position of the handle */
5885 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5890 #endif /* LOCKF_EMULATE_FLOCK */
5894 * c-indentation-style: bsd
5896 * indent-tabs-mode: t
5899 * ex: set ts=8 sts=4 sw=4 noet: