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 (mg && SvREFCNT(obj) > 1 && ckWARN(WARN_UNTIE)) {
911 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
912 "untie attempted while %"UVuf" inner references still exist",
913 (UV)SvREFCNT(obj) - 1 ) ;
917 sv_unmagic(sv, how) ;
926 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
927 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
929 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
932 if ((mg = SvTIED_mg(sv, how))) {
933 SV *osv = SvTIED_obj(sv, mg);
934 if (osv == mg->mg_obj)
935 osv = sv_mortalcopy(osv);
950 HV * const hv = (HV*)POPs;
952 sv = sv_mortalcopy(&PL_sv_no);
953 sv_setpv(sv, "AnyDBM_File");
954 stash = gv_stashsv(sv, FALSE);
955 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
957 require_pv("AnyDBM_File.pm");
959 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
960 DIE(aTHX_ "No dbm on this machine");
970 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
972 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
975 call_sv((SV*)GvCV(gv), G_SCALAR);
978 if (!sv_isobject(TOPs)) {
983 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
986 call_sv((SV*)GvCV(gv), G_SCALAR);
990 if (sv_isobject(TOPs)) {
991 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
992 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1014 struct timeval timebuf;
1015 struct timeval *tbuf = &timebuf;
1018 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1023 # if BYTEORDER & 0xf0000
1024 # define ORDERBYTE (0x88888888 - BYTEORDER)
1026 # define ORDERBYTE (0x4444 - BYTEORDER)
1032 for (i = 1; i <= 3; i++) {
1034 if (SvOK(sv) && SvREADONLY(sv)) {
1036 sv_force_normal_flags(sv, 0);
1038 DIE(aTHX_ PL_no_modify);
1047 /* little endians can use vecs directly */
1048 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1055 masksize = NFDBITS / NBBY;
1057 masksize = sizeof(long); /* documented int, everyone seems to use long */
1059 Zero(&fd_sets[0], 4, char*);
1062 # if SELECT_MIN_BITS == 1
1063 growsize = sizeof(fd_set);
1065 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1066 # undef SELECT_MIN_BITS
1067 # define SELECT_MIN_BITS __FD_SETSIZE
1069 /* If SELECT_MIN_BITS is greater than one we most probably will want
1070 * to align the sizes with SELECT_MIN_BITS/8 because for example
1071 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1072 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1073 * on (sets/tests/clears bits) is 32 bits. */
1074 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1082 timebuf.tv_sec = (long)value;
1083 value -= (NV)timebuf.tv_sec;
1084 timebuf.tv_usec = (long)(value * 1000000.0);
1087 tbuf = Null(struct timeval*);
1089 for (i = 1; i <= 3; i++) {
1095 else if (!SvPOK(sv))
1096 SvPV_force_nolen(sv); /* force string conversion */
1099 Sv_Grow(sv, growsize);
1103 while (++j <= growsize) {
1107 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1109 Newx(fd_sets[i], growsize, char);
1110 for (offset = 0; offset < growsize; offset += masksize) {
1111 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1112 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1115 fd_sets[i] = SvPVX(sv);
1119 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1120 /* Can't make just the (void*) conditional because that would be
1121 * cpp #if within cpp macro, and not all compilers like that. */
1122 nfound = PerlSock_select(
1124 (Select_fd_set_t) fd_sets[1],
1125 (Select_fd_set_t) fd_sets[2],
1126 (Select_fd_set_t) fd_sets[3],
1127 (void*) tbuf); /* Workaround for compiler bug. */
1129 nfound = PerlSock_select(
1131 (Select_fd_set_t) fd_sets[1],
1132 (Select_fd_set_t) fd_sets[2],
1133 (Select_fd_set_t) fd_sets[3],
1136 for (i = 1; i <= 3; i++) {
1139 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1141 for (offset = 0; offset < growsize; offset += masksize) {
1142 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1143 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1145 Safefree(fd_sets[i]);
1152 PUSHs(&PL_sv_undef);
1155 if (GIMME == G_ARRAY && tbuf) {
1156 value = (NV)(timebuf.tv_sec) +
1157 (NV)(timebuf.tv_usec) / 1000000.0;
1158 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1159 sv_setnv(sv, value);
1163 DIE(aTHX_ "select not implemented");
1168 Perl_setdefout(pTHX_ GV *gv)
1171 (void)SvREFCNT_inc(gv);
1173 SvREFCNT_dec(PL_defoutgv);
1183 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1185 egv = GvEGV(PL_defoutgv);
1190 XPUSHs(&PL_sv_undef);
1192 GV ** const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1193 if (gvp && *gvp == egv) {
1194 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1198 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1203 if (!GvIO(newdefout))
1204 gv_IOadd(newdefout);
1205 setdefout(newdefout);
1216 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
1218 if (gv && (io = GvIO(gv))
1219 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1221 const I32 gimme = GIMME_V;
1223 XPUSHs(SvTIED_obj((SV*)io, mg));
1226 call_method("GETC", gimme);
1229 if (gimme == G_SCALAR)
1230 SvSetMagicSV_nosteal(TARG, TOPs);
1233 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1234 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1235 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1236 report_evil_fh(gv, io, PL_op->op_type);
1237 SETERRNO(EBADF,RMS_IFI);
1241 sv_setpvn(TARG, " ", 1);
1242 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1243 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1244 /* Find out how many bytes the char needs */
1245 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1248 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1249 SvCUR_set(TARG,1+len);
1259 return pp_sysread();
1263 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1266 register PERL_CONTEXT *cx;
1267 const I32 gimme = GIMME_V;
1272 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1274 cx->blk_sub.retop = retop;
1276 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
1278 setdefout(gv); /* locally select filehandle so $% et al work */
1310 SV * const tmpsv = sv_newmortal();
1312 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1313 name = SvPV_nolen_const(tmpsv);
1315 DIE(aTHX_ "Undefined format \"%s\" called", name);
1317 DIE(aTHX_ "Not a format reference");
1320 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1322 IoFLAGS(io) &= ~IOf_DIDTOP;
1323 return doform(cv,gv,PL_op->op_next);
1329 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1330 register IO * const io = GvIOp(gv);
1331 PerlIO * const ofp = IoOFP(io);
1335 register PERL_CONTEXT *cx;
1337 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1338 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1341 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1342 PL_formtarget != PL_toptarget)
1346 if (!IoTOP_GV(io)) {
1349 if (!IoTOP_NAME(io)) {
1351 if (!IoFMT_NAME(io))
1352 IoFMT_NAME(io) = savepv(GvNAME(gv));
1353 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1354 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1355 if ((topgv && GvFORM(topgv)) ||
1356 !gv_fetchpv("top",FALSE,SVt_PVFM))
1357 IoTOP_NAME(io) = savesvpv(topname);
1359 IoTOP_NAME(io) = savepvn("top", 3);
1361 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1362 if (!topgv || !GvFORM(topgv)) {
1363 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1366 IoTOP_GV(io) = topgv;
1368 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1369 I32 lines = IoLINES_LEFT(io);
1370 const char *s = SvPVX_const(PL_formtarget);
1371 if (lines <= 0) /* Yow, header didn't even fit!!! */
1373 while (lines-- > 0) {
1374 s = strchr(s, '\n');
1380 const STRLEN save = SvCUR(PL_formtarget);
1381 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1382 do_print(PL_formtarget, ofp);
1383 SvCUR_set(PL_formtarget, save);
1384 sv_chop(PL_formtarget, s);
1385 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1388 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1389 do_print(PL_formfeed, ofp);
1390 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1392 PL_formtarget = PL_toptarget;
1393 IoFLAGS(io) |= IOf_DIDTOP;
1396 DIE(aTHX_ "bad top format reference");
1399 SV * const sv = sv_newmortal();
1401 gv_efullname4(sv, fgv, Nullch, FALSE);
1402 name = SvPV_nolen_const(sv);
1404 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1408 DIE(aTHX_ "Undefined top format called");
1411 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1412 return doform(cv,gv,PL_op);
1416 POPBLOCK(cx,PL_curpm);
1422 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1424 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1425 else if (ckWARN(WARN_CLOSED))
1426 report_evil_fh(gv, io, PL_op->op_type);
1431 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1432 if (ckWARN(WARN_IO))
1433 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1435 if (!do_print(PL_formtarget, fp))
1438 FmLINES(PL_formtarget) = 0;
1439 SvCUR_set(PL_formtarget, 0);
1440 *SvEND(PL_formtarget) = '\0';
1441 if (IoFLAGS(io) & IOf_FLUSH)
1442 (void)PerlIO_flush(fp);
1447 PL_formtarget = PL_bodytarget;
1449 PERL_UNUSED_VAR(newsp);
1450 PERL_UNUSED_VAR(gimme);
1451 return cx->blk_sub.retop;
1456 dVAR; dSP; dMARK; dORIGMARK;
1463 if (PL_op->op_flags & OPf_STACKED)
1468 if (gv && (io = GvIO(gv))
1469 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1471 if (MARK == ORIGMARK) {
1474 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1478 *MARK = SvTIED_obj((SV*)io, mg);
1481 call_method("PRINTF", G_SCALAR);
1484 MARK = ORIGMARK + 1;
1491 if (!(io = GvIO(gv))) {
1492 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1493 report_evil_fh(gv, io, PL_op->op_type);
1494 SETERRNO(EBADF,RMS_IFI);
1497 else if (!(fp = IoOFP(io))) {
1498 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1500 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1501 else if (ckWARN(WARN_CLOSED))
1502 report_evil_fh(gv, io, PL_op->op_type);
1504 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1508 do_sprintf(sv, SP - MARK, MARK + 1);
1509 if (!do_print(sv, fp))
1512 if (IoFLAGS(io) & IOf_FLUSH)
1513 if (PerlIO_flush(fp) == EOF)
1524 PUSHs(&PL_sv_undef);
1531 const int perm = (MAXARG > 3) ? POPi : 0666;
1532 const int mode = POPi;
1533 SV * const sv = POPs;
1534 GV * const gv = (GV *)POPs;
1537 /* Need TIEHANDLE method ? */
1538 const char * const tmps = SvPV_const(sv, len);
1539 /* FIXME? do_open should do const */
1540 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
1541 IoLINES(GvIOp(gv)) = 0;
1545 PUSHs(&PL_sv_undef);
1552 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1558 Sock_size_t bufsize;
1566 bool charstart = FALSE;
1567 STRLEN charskip = 0;
1570 GV * const gv = (GV*)*++MARK;
1571 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1572 && gv && (io = GvIO(gv)) )
1574 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1578 *MARK = SvTIED_obj((SV*)io, mg);
1580 call_method("READ", G_SCALAR);
1594 sv_setpvn(bufsv, "", 0);
1595 length = SvIVx(*++MARK);
1598 offset = SvIVx(*++MARK);
1602 if (!io || !IoIFP(io)) {
1603 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1604 report_evil_fh(gv, io, PL_op->op_type);
1605 SETERRNO(EBADF,RMS_IFI);
1608 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1609 buffer = SvPVutf8_force(bufsv, blen);
1610 /* UTF-8 may not have been set if they are all low bytes */
1615 buffer = SvPV_force(bufsv, blen);
1616 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1619 DIE(aTHX_ "Negative length");
1627 if (PL_op->op_type == OP_RECV) {
1628 char namebuf[MAXPATHLEN];
1629 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1630 bufsize = sizeof (struct sockaddr_in);
1632 bufsize = sizeof namebuf;
1634 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1638 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1639 /* 'offset' means 'flags' here */
1640 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1641 (struct sockaddr *)namebuf, &bufsize);
1645 /* Bogus return without padding */
1646 bufsize = sizeof (struct sockaddr_in);
1648 SvCUR_set(bufsv, count);
1649 *SvEND(bufsv) = '\0';
1650 (void)SvPOK_only(bufsv);
1654 /* This should not be marked tainted if the fp is marked clean */
1655 if (!(IoFLAGS(io) & IOf_UNTAINT))
1656 SvTAINTED_on(bufsv);
1658 sv_setpvn(TARG, namebuf, bufsize);
1663 if (PL_op->op_type == OP_RECV)
1664 DIE(aTHX_ PL_no_sock_func, "recv");
1666 if (DO_UTF8(bufsv)) {
1667 /* offset adjust in characters not bytes */
1668 blen = sv_len_utf8(bufsv);
1671 if (-offset > (int)blen)
1672 DIE(aTHX_ "Offset outside string");
1675 if (DO_UTF8(bufsv)) {
1676 /* convert offset-as-chars to offset-as-bytes */
1677 if (offset >= (int)blen)
1678 offset += SvCUR(bufsv) - blen;
1680 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1683 bufsize = SvCUR(bufsv);
1684 /* Allocating length + offset + 1 isn't perfect in the case of reading
1685 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1687 (should be 2 * length + offset + 1, or possibly something longer if
1688 PL_encoding is true) */
1689 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1690 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1691 Zero(buffer+bufsize, offset-bufsize, char);
1693 buffer = buffer + offset;
1695 read_target = bufsv;
1697 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1698 concatenate it to the current buffer. */
1700 /* Truncate the existing buffer to the start of where we will be
1702 SvCUR_set(bufsv, offset);
1704 read_target = sv_newmortal();
1705 SvUPGRADE(read_target, SVt_PV);
1706 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1709 if (PL_op->op_type == OP_SYSREAD) {
1710 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1711 if (IoTYPE(io) == IoTYPE_SOCKET) {
1712 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1718 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1723 #ifdef HAS_SOCKET__bad_code_maybe
1724 if (IoTYPE(io) == IoTYPE_SOCKET) {
1725 char namebuf[MAXPATHLEN];
1726 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1727 bufsize = sizeof (struct sockaddr_in);
1729 bufsize = sizeof namebuf;
1731 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1732 (struct sockaddr *)namebuf, &bufsize);
1737 count = PerlIO_read(IoIFP(io), buffer, length);
1738 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1739 if (count == 0 && PerlIO_error(IoIFP(io)))
1743 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1744 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1747 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1748 *SvEND(read_target) = '\0';
1749 (void)SvPOK_only(read_target);
1750 if (fp_utf8 && !IN_BYTES) {
1751 /* Look at utf8 we got back and count the characters */
1752 const char *bend = buffer + count;
1753 while (buffer < bend) {
1755 skip = UTF8SKIP(buffer);
1758 if (buffer - charskip + skip > bend) {
1759 /* partial character - try for rest of it */
1760 length = skip - (bend-buffer);
1761 offset = bend - SvPVX_const(bufsv);
1773 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1774 provided amount read (count) was what was requested (length)
1776 if (got < wanted && count == length) {
1777 length = wanted - got;
1778 offset = bend - SvPVX_const(bufsv);
1781 /* return value is character count */
1785 else if (buffer_utf8) {
1786 /* Let svcatsv upgrade the bytes we read in to utf8.
1787 The buffer is a mortal so will be freed soon. */
1788 sv_catsv_nomg(bufsv, read_target);
1791 /* This should not be marked tainted if the fp is marked clean */
1792 if (!(IoFLAGS(io) & IOf_UNTAINT))
1793 SvTAINTED_on(bufsv);
1806 const int items = (SP - PL_stack_base) - TOPMARK;
1810 sv = sv_2mortal(newSViv(sv_len(*SP)));
1819 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1830 if (PL_op->op_type == OP_SYSWRITE
1831 && gv && (io = GvIO(gv))
1832 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1837 *MARK = SvTIED_obj((SV*)io, mg);
1839 call_method("WRITE", G_SCALAR);
1850 #if Size_t_size > IVSIZE
1851 length = (Size_t)SvNVx(*++MARK);
1853 length = (Size_t)SvIVx(*++MARK);
1855 if ((SSize_t)length < 0)
1856 DIE(aTHX_ "Negative length");
1859 if (!io || !IoIFP(io)) {
1861 if (ckWARN(WARN_CLOSED))
1862 report_evil_fh(gv, io, PL_op->op_type);
1863 SETERRNO(EBADF,RMS_IFI);
1867 if (PerlIO_isutf8(IoIFP(io))) {
1868 if (!SvUTF8(bufsv)) {
1869 bufsv = sv_2mortal(newSVsv(bufsv));
1870 buffer = sv_2pvutf8(bufsv, &blen);
1872 buffer = SvPV_const(bufsv, blen);
1875 if (DO_UTF8(bufsv)) {
1876 /* Not modifying source SV, so making a temporary copy. */
1877 bufsv = sv_2mortal(newSVsv(bufsv));
1878 sv_utf8_downgrade(bufsv, FALSE);
1880 buffer = SvPV_const(bufsv, blen);
1883 if (PL_op->op_type == OP_SYSWRITE) {
1885 if (DO_UTF8(bufsv)) {
1886 /* length and offset are in chars */
1887 blen = sv_len_utf8(bufsv);
1890 offset = SvIVx(*++MARK);
1892 if (-offset > (IV)blen)
1893 DIE(aTHX_ "Offset outside string");
1895 } else if (offset >= (IV)blen && blen > 0)
1896 DIE(aTHX_ "Offset outside string");
1899 if (length > blen - offset)
1900 length = blen - offset;
1901 if (DO_UTF8(bufsv)) {
1902 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1903 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1906 buffer = buffer+offset;
1908 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1909 if (IoTYPE(io) == IoTYPE_SOCKET) {
1910 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1916 /* See the note at doio.c:do_print about filesize limits. --jhi */
1917 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1922 else if (SP > MARK) {
1924 char * const sockbuf = SvPVx(*++MARK, mlen);
1925 /* length is really flags */
1926 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1927 length, (struct sockaddr *)sockbuf, mlen);
1930 /* length is really flags */
1931 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1934 DIE(aTHX_ PL_no_sock_func, "send");
1940 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1941 #if Size_t_size > IVSIZE
1955 return pp_sysread();
1966 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1968 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1970 if (io && !IoIFP(io)) {
1971 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1973 IoFLAGS(io) &= ~IOf_START;
1974 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1975 sv_setpvn(GvSV(gv), "-", 1);
1976 SvSETMAGIC(GvSV(gv));
1978 else if (!nextargv(gv))
1983 gv = PL_last_in_gv; /* eof */
1986 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1988 if (gv && (io = GvIO(gv))
1989 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1992 XPUSHs(SvTIED_obj((SV*)io, mg));
1995 call_method("EOF", G_SCALAR);
2001 PUSHs(boolSV(!gv || do_eof(gv)));
2015 gv = PL_last_in_gv = (GV*)POPs;
2017 if (gv && (io = GvIO(gv))
2018 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2021 XPUSHs(SvTIED_obj((SV*)io, mg));
2024 call_method("TELL", G_SCALAR);
2030 #if LSEEKSIZE > IVSIZE
2031 PUSHn( do_tell(gv) );
2033 PUSHi( do_tell(gv) );
2040 return pp_sysseek();
2048 const int whence = POPi;
2049 #if LSEEKSIZE > IVSIZE
2050 Off_t offset = (Off_t)SvNVx(POPs);
2052 Off_t offset = (Off_t)SvIVx(POPs);
2056 gv = PL_last_in_gv = (GV*)POPs;
2058 if (gv && (io = GvIO(gv))
2059 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2062 XPUSHs(SvTIED_obj((SV*)io, mg));
2063 #if LSEEKSIZE > IVSIZE
2064 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2066 XPUSHs(sv_2mortal(newSViv(offset)));
2068 XPUSHs(sv_2mortal(newSViv(whence)));
2071 call_method("SEEK", G_SCALAR);
2077 if (PL_op->op_type == OP_SEEK)
2078 PUSHs(boolSV(do_seek(gv, offset, whence)));
2080 Off_t sought = do_sysseek(gv, offset, whence);
2082 PUSHs(&PL_sv_undef);
2085 #if LSEEKSIZE > IVSIZE
2090 : newSVpvn(zero_but_true, ZBTLEN);
2091 PUSHs(sv_2mortal(sv));
2100 /* There seems to be no consensus on the length type of truncate()
2101 * and ftruncate(), both off_t and size_t have supporters. In
2102 * general one would think that when using large files, off_t is
2103 * at least as wide as size_t, so using an off_t should be okay. */
2104 /* XXX Configure probe for the length type of *truncate() needed XXX */
2107 #if Off_t_size > IVSIZE
2112 /* Checking for length < 0 is problematic as the type might or
2113 * might not be signed: if it is not, clever compilers will moan. */
2114 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2121 if (PL_op->op_flags & OPf_SPECIAL) {
2122 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2131 TAINT_PROPER("truncate");
2132 if (!(fp = IoIFP(io))) {
2138 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2140 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2150 if (SvTYPE(sv) == SVt_PVGV) {
2151 tmpgv = (GV*)sv; /* *main::FRED for example */
2152 goto do_ftruncate_gv;
2154 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2155 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2156 goto do_ftruncate_gv;
2158 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2159 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2160 goto do_ftruncate_io;
2163 name = SvPV_nolen_const(sv);
2164 TAINT_PROPER("truncate");
2166 if (truncate(name, len) < 0)
2172 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2175 if (my_chsize(tmpfd, len) < 0)
2177 PerlLIO_close(tmpfd);
2186 SETERRNO(EBADF,RMS_IFI);
2200 const unsigned int func = POPu;
2201 const int optype = PL_op->op_type;
2205 IO *io = gv ? GvIOn(gv) : 0;
2207 if (!io || !argsv || !IoIFP(io)) {
2208 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2209 report_evil_fh(gv, io, PL_op->op_type);
2210 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2214 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2217 s = SvPV_force(argsv, len);
2218 need = IOCPARM_LEN(func);
2220 s = Sv_Grow(argsv, need + 1);
2221 SvCUR_set(argsv, need);
2224 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2227 retval = SvIV(argsv);
2228 s = INT2PTR(char*,retval); /* ouch */
2231 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2233 if (optype == OP_IOCTL)
2235 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2237 DIE(aTHX_ "ioctl is not implemented");
2241 DIE(aTHX_ "fcntl is not implemented");
2243 #if defined(OS2) && defined(__EMX__)
2244 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2246 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2250 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2252 if (s[SvCUR(argsv)] != 17)
2253 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2255 s[SvCUR(argsv)] = 0; /* put our null back */
2256 SvSETMAGIC(argsv); /* Assume it has changed */
2265 PUSHp(zero_but_true, ZBTLEN);
2286 if (gv && (io = GvIO(gv)))
2293 (void)PerlIO_flush(fp);
2294 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2297 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2298 report_evil_fh(gv, io, PL_op->op_type);
2300 SETERRNO(EBADF,RMS_IFI);
2305 DIE(aTHX_ PL_no_func, "flock()");
2317 int protocol = POPi;
2323 io = gv ? GvIOn(gv) : NULL;
2326 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2327 report_evil_fh(gv, io, PL_op->op_type);
2329 do_close(gv, FALSE);
2330 SETERRNO(EBADF,LIB_INVARG);
2335 do_close(gv, FALSE);
2337 TAINT_PROPER("socket");
2338 fd = PerlSock_socket(domain, type, protocol);
2341 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2342 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2343 IoTYPE(io) = IoTYPE_SOCKET;
2344 if (!IoIFP(io) || !IoOFP(io)) {
2345 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2346 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2347 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2350 #if defined(HAS_FCNTL) && defined(F_SETFD)
2351 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2355 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2360 DIE(aTHX_ PL_no_sock_func, "socket");
2366 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2372 int protocol = POPi;
2379 io1 = gv1 ? GvIOn(gv1) : NULL;
2380 io2 = gv2 ? GvIOn(gv2) : NULL;
2381 if (!gv1 || !gv2 || !io1 || !io2) {
2382 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2384 report_evil_fh(gv1, io1, PL_op->op_type);
2386 report_evil_fh(gv1, io2, PL_op->op_type);
2389 do_close(gv1, FALSE);
2391 do_close(gv2, FALSE);
2396 do_close(gv1, FALSE);
2398 do_close(gv2, FALSE);
2400 TAINT_PROPER("socketpair");
2401 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2403 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2404 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2405 IoTYPE(io1) = IoTYPE_SOCKET;
2406 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2407 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2408 IoTYPE(io2) = IoTYPE_SOCKET;
2409 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2410 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2411 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2412 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2413 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2414 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2415 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2418 #if defined(HAS_FCNTL) && defined(F_SETFD)
2419 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2420 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2425 DIE(aTHX_ PL_no_sock_func, "socketpair");
2433 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2434 extern void GETPRIVMODE();
2435 extern void GETUSERMODE();
2438 /* OK, so on what platform does bind modify addr? */
2441 register IO *io = GvIOn(gv);
2445 int mpeprivmode = 0;
2448 if (!io || !IoIFP(io))
2451 addr = SvPV_const(addrsv, len);
2452 TAINT_PROPER("bind");
2453 #ifdef MPE /* Deal with MPE bind() peculiarities */
2454 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2455 /* The address *MUST* stupidly be zero. */
2456 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2457 /* PRIV mode is required to bind() to ports < 1024. */
2458 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2459 ((struct sockaddr_in *)addr)->sin_port > 0) {
2460 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2465 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2466 (struct sockaddr *)addr, len) >= 0)
2469 #ifdef MPE /* Switch back to USER mode */
2480 if (ckWARN(WARN_CLOSED))
2481 report_evil_fh(gv, io, PL_op->op_type);
2482 SETERRNO(EBADF,SS_IVCHAN);
2485 DIE(aTHX_ PL_no_sock_func, "bind");
2496 register IO *io = GvIOn(gv);
2499 if (!io || !IoIFP(io))
2502 addr = SvPV_const(addrsv, len);
2503 TAINT_PROPER("connect");
2504 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2510 if (ckWARN(WARN_CLOSED))
2511 report_evil_fh(gv, io, PL_op->op_type);
2512 SETERRNO(EBADF,SS_IVCHAN);
2515 DIE(aTHX_ PL_no_sock_func, "connect");
2525 register IO *io = gv ? GvIOn(gv) : NULL;
2527 if (!gv || !io || !IoIFP(io))
2530 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2536 if (ckWARN(WARN_CLOSED))
2537 report_evil_fh(gv, io, PL_op->op_type);
2538 SETERRNO(EBADF,SS_IVCHAN);
2541 DIE(aTHX_ PL_no_sock_func, "listen");
2553 char namebuf[MAXPATHLEN];
2554 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2555 Sock_size_t len = sizeof (struct sockaddr_in);
2557 Sock_size_t len = sizeof namebuf;
2570 if (!gstio || !IoIFP(gstio))
2574 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2578 do_close(ngv, FALSE);
2579 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2580 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2581 IoTYPE(nstio) = IoTYPE_SOCKET;
2582 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2583 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2584 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2585 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2588 #if defined(HAS_FCNTL) && defined(F_SETFD)
2589 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2593 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2594 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2596 #ifdef __SCO_VERSION__
2597 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2600 PUSHp(namebuf, len);
2604 if (ckWARN(WARN_CLOSED))
2605 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2606 SETERRNO(EBADF,SS_IVCHAN);
2612 DIE(aTHX_ PL_no_sock_func, "accept");
2622 register IO *io = GvIOn(gv);
2624 if (!io || !IoIFP(io))
2627 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2631 if (ckWARN(WARN_CLOSED))
2632 report_evil_fh(gv, io, PL_op->op_type);
2633 SETERRNO(EBADF,SS_IVCHAN);
2636 DIE(aTHX_ PL_no_sock_func, "shutdown");
2643 return pp_ssockopt();
2645 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2653 int optype = PL_op->op_type;
2656 unsigned int optname;
2662 if (optype == OP_GSOCKOPT)
2663 sv = sv_2mortal(NEWSV(22, 257));
2666 optname = (unsigned int) POPi;
2667 lvl = (unsigned int) POPi;
2671 if (!io || !IoIFP(io))
2674 fd = PerlIO_fileno(IoIFP(io));
2678 (void)SvPOK_only(sv);
2682 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2693 buf = SvPV_const(sv, l);
2697 aint = (int)SvIV(sv);
2698 buf = (const char*)&aint;
2701 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2710 if (ckWARN(WARN_CLOSED))
2711 report_evil_fh(gv, io, optype);
2712 SETERRNO(EBADF,SS_IVCHAN);
2717 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2724 return pp_getpeername();
2726 DIE(aTHX_ PL_no_sock_func, "getsockname");
2734 int optype = PL_op->op_type;
2738 register IO *io = GvIOn(gv);
2741 if (!io || !IoIFP(io))
2744 sv = sv_2mortal(NEWSV(22, 257));
2745 (void)SvPOK_only(sv);
2749 fd = PerlIO_fileno(IoIFP(io));
2751 case OP_GETSOCKNAME:
2752 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2755 case OP_GETPEERNAME:
2756 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2758 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2760 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";
2761 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2762 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2763 !memcmp((char *)SvPVX_const(sv) + sizeof(u_short), nowhere,
2764 sizeof(u_short) + sizeof(struct in_addr))) {
2771 #ifdef BOGUS_GETNAME_RETURN
2772 /* Interactive Unix, getpeername() and getsockname()
2773 does not return valid namelen */
2774 if (len == BOGUS_GETNAME_RETURN)
2775 len = sizeof(struct sockaddr);
2783 if (ckWARN(WARN_CLOSED))
2784 report_evil_fh(gv, io, optype);
2785 SETERRNO(EBADF,SS_IVCHAN);
2790 DIE(aTHX_ PL_no_sock_func, "getpeername");
2808 if (PL_op->op_flags & OPf_REF) {
2810 if (PL_op->op_type == OP_LSTAT) {
2811 if (gv != PL_defgv) {
2812 if (ckWARN(WARN_IO))
2813 Perl_warner(aTHX_ packWARN(WARN_IO),
2814 "lstat() on filehandle %s", GvENAME(gv));
2815 } else if (PL_laststype != OP_LSTAT)
2816 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2820 if (gv != PL_defgv) {
2821 PL_laststype = OP_STAT;
2823 sv_setpvn(PL_statname, "", 0);
2824 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2825 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2827 if (PL_laststatval < 0) {
2828 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2829 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2835 if (SvTYPE(sv) == SVt_PVGV) {
2839 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2841 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2842 Perl_warner(aTHX_ packWARN(WARN_IO),
2843 "lstat() on filehandle %s", GvENAME(gv));
2846 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2848 PL_laststype = PL_op->op_type;
2849 if (PL_op->op_type == OP_LSTAT)
2850 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2852 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2853 if (PL_laststatval < 0) {
2854 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2855 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2861 if (gimme != G_ARRAY) {
2862 if (gimme != G_VOID)
2863 XPUSHs(boolSV(max));
2869 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2870 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2871 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2872 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2873 #if Uid_t_size > IVSIZE
2874 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2876 # if Uid_t_sign <= 0
2877 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2879 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2882 #if Gid_t_size > IVSIZE
2883 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2885 # if Gid_t_sign <= 0
2886 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2888 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2891 #ifdef USE_STAT_RDEV
2892 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2894 PUSHs(sv_2mortal(newSVpvn("", 0)));
2896 #if Off_t_size > IVSIZE
2897 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2899 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2902 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2903 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2904 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2906 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2907 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2908 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2910 #ifdef USE_STAT_BLOCKS
2911 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2912 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2914 PUSHs(sv_2mortal(newSVpvn("", 0)));
2915 PUSHs(sv_2mortal(newSVpvn("", 0)));
2921 /* This macro is used by the stacked filetest operators :
2922 * if the previous filetest failed, short-circuit and pass its value.
2923 * Else, discard it from the stack and continue. --rgs
2925 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2926 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2927 else { (void)POPs; PUTBACK; } \
2934 STACKED_FTEST_CHECK;
2935 #if defined(HAS_ACCESS) && defined(R_OK)
2936 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2937 result = access(POPpx, R_OK);
2952 if (cando(S_IRUSR, 0, &PL_statcache))
2961 STACKED_FTEST_CHECK;
2962 #if defined(HAS_ACCESS) && defined(W_OK)
2963 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2964 result = access(POPpx, W_OK);
2979 if (cando(S_IWUSR, 0, &PL_statcache))
2988 STACKED_FTEST_CHECK;
2989 #if defined(HAS_ACCESS) && defined(X_OK)
2990 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2991 result = access(POPpx, X_OK);
3006 if (cando(S_IXUSR, 0, &PL_statcache))
3015 STACKED_FTEST_CHECK;
3016 #ifdef PERL_EFF_ACCESS_R_OK
3017 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3018 result = PERL_EFF_ACCESS_R_OK(POPpx);
3033 if (cando(S_IRUSR, 1, &PL_statcache))
3042 STACKED_FTEST_CHECK;
3043 #ifdef PERL_EFF_ACCESS_W_OK
3044 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3045 result = PERL_EFF_ACCESS_W_OK(POPpx);
3060 if (cando(S_IWUSR, 1, &PL_statcache))
3069 STACKED_FTEST_CHECK;
3070 #ifdef PERL_EFF_ACCESS_X_OK
3071 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3072 result = PERL_EFF_ACCESS_X_OK(POPpx);
3087 if (cando(S_IXUSR, 1, &PL_statcache))
3096 STACKED_FTEST_CHECK;
3106 return pp_ftrowned();
3113 STACKED_FTEST_CHECK;
3118 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3128 STACKED_FTEST_CHECK;
3133 if (PL_statcache.st_size == 0)
3142 STACKED_FTEST_CHECK;
3147 #if Off_t_size > IVSIZE
3148 PUSHn(PL_statcache.st_size);
3150 PUSHi(PL_statcache.st_size);
3159 STACKED_FTEST_CHECK;
3164 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3172 STACKED_FTEST_CHECK;
3177 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3185 STACKED_FTEST_CHECK;
3190 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3198 STACKED_FTEST_CHECK;
3203 if (S_ISSOCK(PL_statcache.st_mode))
3212 STACKED_FTEST_CHECK;
3217 if (S_ISCHR(PL_statcache.st_mode))
3226 STACKED_FTEST_CHECK;
3231 if (S_ISBLK(PL_statcache.st_mode))
3240 STACKED_FTEST_CHECK;
3245 if (S_ISREG(PL_statcache.st_mode))
3254 STACKED_FTEST_CHECK;
3259 if (S_ISDIR(PL_statcache.st_mode))
3268 STACKED_FTEST_CHECK;
3273 if (S_ISFIFO(PL_statcache.st_mode))
3280 I32 result = my_lstat();
3284 if (S_ISLNK(PL_statcache.st_mode))
3294 STACKED_FTEST_CHECK;
3299 if (PL_statcache.st_mode & S_ISUID)
3310 STACKED_FTEST_CHECK;
3315 if (PL_statcache.st_mode & S_ISGID)
3326 STACKED_FTEST_CHECK;
3331 if (PL_statcache.st_mode & S_ISVTX)
3344 STACKED_FTEST_CHECK;
3346 if (PL_op->op_flags & OPf_REF)
3348 else if (isGV(TOPs))
3350 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3351 gv = (GV*)SvRV(POPs);
3353 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3355 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3356 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3357 else if (tmpsv && SvOK(tmpsv)) {
3358 const char *tmps = SvPV_nolen_const(tmpsv);
3366 if (PerlLIO_isatty(fd))
3371 #if defined(atarist) /* this will work with atariST. Configure will
3372 make guesses for other systems. */
3373 # define FILE_base(f) ((f)->_base)
3374 # define FILE_ptr(f) ((f)->_ptr)
3375 # define FILE_cnt(f) ((f)->_cnt)
3376 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3386 register STDCHAR *s;
3392 STACKED_FTEST_CHECK;
3394 if (PL_op->op_flags & OPf_REF)
3396 else if (isGV(TOPs))
3398 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3399 gv = (GV*)SvRV(POPs);
3405 if (gv == PL_defgv) {
3407 io = GvIO(PL_statgv);
3410 goto really_filename;
3415 PL_laststatval = -1;
3416 sv_setpvn(PL_statname, "", 0);
3417 io = GvIO(PL_statgv);
3419 if (io && IoIFP(io)) {
3420 if (! PerlIO_has_base(IoIFP(io)))
3421 DIE(aTHX_ "-T and -B not implemented on filehandles");
3422 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3423 if (PL_laststatval < 0)
3425 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3426 if (PL_op->op_type == OP_FTTEXT)
3431 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3432 i = PerlIO_getc(IoIFP(io));
3434 (void)PerlIO_ungetc(IoIFP(io),i);
3436 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3438 len = PerlIO_get_bufsiz(IoIFP(io));
3439 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3440 /* sfio can have large buffers - limit to 512 */
3445 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3447 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3449 SETERRNO(EBADF,RMS_IFI);
3457 PL_laststype = OP_STAT;
3458 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3459 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3460 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3462 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3465 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3466 if (PL_laststatval < 0) {
3467 (void)PerlIO_close(fp);
3470 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3471 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3472 (void)PerlIO_close(fp);
3474 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3475 RETPUSHNO; /* special case NFS directories */
3476 RETPUSHYES; /* null file is anything */
3481 /* now scan s to look for textiness */
3482 /* XXX ASCII dependent code */
3484 #if defined(DOSISH) || defined(USEMYBINMODE)
3485 /* ignore trailing ^Z on short files */
3486 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3490 for (i = 0; i < len; i++, s++) {
3491 if (!*s) { /* null never allowed in text */
3496 else if (!(isPRINT(*s) || isSPACE(*s)))
3499 else if (*s & 128) {
3501 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3504 /* utf8 characters don't count as odd */
3505 if (UTF8_IS_START(*s)) {
3506 int ulen = UTF8SKIP(s);
3507 if (ulen < len - i) {
3509 for (j = 1; j < ulen; j++) {
3510 if (!UTF8_IS_CONTINUATION(s[j]))
3513 --ulen; /* loop does extra increment */
3523 *s != '\n' && *s != '\r' && *s != '\b' &&
3524 *s != '\t' && *s != '\f' && *s != 27)
3529 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3545 const char *tmps = 0;
3549 SV * const sv = POPs;
3550 if (SvTYPE(sv) == SVt_PVGV) {
3553 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3557 tmps = SvPVx_nolen_const(sv);
3561 if( !gv && (!tmps || !*tmps) ) {
3562 HV * const table = GvHVn(PL_envgv);
3565 if ( (svp = hv_fetch(table, "HOME", 4, FALSE))
3566 || (svp = hv_fetch(table, "LOGDIR", 6, FALSE))
3568 || (svp = hv_fetch(table, "SYS$LOGIN", 9, FALSE))
3573 deprecate("chdir('') or chdir(undef) as chdir()");
3574 tmps = SvPV_nolen_const(*svp);
3578 TAINT_PROPER("chdir");
3583 TAINT_PROPER("chdir");
3586 IO* const io = GvIO(gv);
3589 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3591 else if (IoDIRP(io)) {
3593 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3595 DIE(aTHX PL_no_func, "dirfd");
3606 DIE(aTHX_ PL_no_func, "fchdir");
3610 PUSHi( PerlDir_chdir(tmps) >= 0 );
3612 /* Clear the DEFAULT element of ENV so we'll get the new value
3614 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3622 dSP; dMARK; dTARGET;
3623 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3629 DIE(aTHX_ PL_no_func, "chown");
3638 TAINT_PROPER("chroot");
3639 PUSHi( chroot(tmps) >= 0 );
3642 DIE(aTHX_ PL_no_func, "chroot");
3648 dSP; dMARK; dTARGET;
3650 value = (I32)apply(PL_op->op_type, MARK, SP);
3658 dSP; dMARK; dTARGET;
3660 value = (I32)apply(PL_op->op_type, MARK, SP);
3668 dSP; dMARK; dTARGET;
3670 value = (I32)apply(PL_op->op_type, MARK, SP);
3680 const char *tmps2 = POPpconstx;
3681 const char *tmps = SvPV_nolen_const(TOPs);
3682 TAINT_PROPER("rename");
3684 anum = PerlLIO_rename(tmps, tmps2);
3686 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3687 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3690 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3691 (void)UNLINK(tmps2);
3692 if (!(anum = link(tmps, tmps2)))
3693 anum = UNLINK(tmps);
3705 const char *tmps2 = POPpconstx;
3706 const char *tmps = SvPV_nolen_const(TOPs);
3707 TAINT_PROPER("link");
3708 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3711 DIE(aTHX_ PL_no_func, "link");
3719 const char *tmps2 = POPpconstx;
3720 const char *tmps = SvPV_nolen_const(TOPs);
3721 TAINT_PROPER("symlink");
3722 SETi( symlink(tmps, tmps2) >= 0 );
3725 DIE(aTHX_ PL_no_func, "symlink");
3735 char buf[MAXPATHLEN];
3738 #ifndef INCOMPLETE_TAINTS
3742 len = readlink(tmps, buf, sizeof(buf) - 1);
3750 RETSETUNDEF; /* just pretend it's a normal file */
3754 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3756 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3758 char * const save_filename = filename;
3764 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3765 strcpy(cmdline, cmd);
3766 strcat(cmdline, " ");
3767 for (s = cmdline + strlen(cmdline); *filename; ) {
3772 myfp = PerlProc_popen(cmdline, "r");
3776 SV *tmpsv = sv_newmortal();
3777 /* Need to save/restore 'PL_rs' ?? */
3778 s = sv_gets(tmpsv, myfp, 0);
3779 (void)PerlProc_pclose(myfp);
3783 #ifdef HAS_SYS_ERRLIST
3788 /* you don't see this */
3790 #ifdef HAS_SYS_ERRLIST
3798 if (instr(s, errmsg)) {
3805 #define EACCES EPERM
3807 if (instr(s, "cannot make"))
3808 SETERRNO(EEXIST,RMS_FEX);
3809 else if (instr(s, "existing file"))
3810 SETERRNO(EEXIST,RMS_FEX);
3811 else if (instr(s, "ile exists"))
3812 SETERRNO(EEXIST,RMS_FEX);
3813 else if (instr(s, "non-exist"))
3814 SETERRNO(ENOENT,RMS_FNF);
3815 else if (instr(s, "does not exist"))
3816 SETERRNO(ENOENT,RMS_FNF);
3817 else if (instr(s, "not empty"))
3818 SETERRNO(EBUSY,SS_DEVOFFLINE);
3819 else if (instr(s, "cannot access"))
3820 SETERRNO(EACCES,RMS_PRV);
3822 SETERRNO(EPERM,RMS_PRV);
3825 else { /* some mkdirs return no failure indication */
3826 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3827 if (PL_op->op_type == OP_RMDIR)
3832 SETERRNO(EACCES,RMS_PRV); /* a guess */
3841 /* This macro removes trailing slashes from a directory name.
3842 * Different operating and file systems take differently to
3843 * trailing slashes. According to POSIX 1003.1 1996 Edition
3844 * any number of trailing slashes should be allowed.
3845 * Thusly we snip them away so that even non-conforming
3846 * systems are happy.
3847 * We should probably do this "filtering" for all
3848 * the functions that expect (potentially) directory names:
3849 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3850 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3852 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3853 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3856 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3857 (tmps) = savepvn((tmps), (len)); \
3877 TRIMSLASHES(tmps,len,copy);
3879 TAINT_PROPER("mkdir");
3881 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3883 SETi( dooneliner("mkdir", tmps) );
3884 oldumask = PerlLIO_umask(0);
3885 PerlLIO_umask(oldumask);
3886 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3900 TRIMSLASHES(tmps,len,copy);
3901 TAINT_PROPER("rmdir");
3903 SETi( PerlDir_rmdir(tmps) >= 0 );
3905 SETi( dooneliner("rmdir", tmps) );
3912 /* Directory calls. */
3916 #if defined(Direntry_t) && defined(HAS_READDIR)
3918 const char *dirname = POPpconstx;
3920 register IO *io = GvIOn(gv);
3926 PerlDir_close(IoDIRP(io));
3927 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3933 SETERRNO(EBADF,RMS_DIR);
3936 DIE(aTHX_ PL_no_dir_func, "opendir");
3942 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3943 DIE(aTHX_ PL_no_dir_func, "readdir");
3945 #if !defined(I_DIRENT) && !defined(VMS)
3946 Direntry_t *readdir (DIR *);
3951 const I32 gimme = GIMME;
3952 GV *gv = (GV *)POPs;
3953 register Direntry_t *dp;
3954 register IO *io = GvIOn(gv);
3956 if (!io || !IoDIRP(io))
3960 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3964 sv = newSVpvn(dp->d_name, dp->d_namlen);
3966 sv = newSVpv(dp->d_name, 0);
3968 #ifndef INCOMPLETE_TAINTS
3969 if (!(IoFLAGS(io) & IOf_UNTAINT))
3972 XPUSHs(sv_2mortal(sv));
3974 while (gimme == G_ARRAY);
3976 if (!dp && gimme != G_ARRAY)
3983 SETERRNO(EBADF,RMS_ISI);
3984 if (GIMME == G_ARRAY)
3993 #if defined(HAS_TELLDIR) || defined(telldir)
3995 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3996 /* XXX netbsd still seemed to.
3997 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3998 --JHI 1999-Feb-02 */
3999 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
4000 long telldir (DIR *);
4003 register IO *io = GvIOn(gv);
4005 if (!io || !IoDIRP(io))
4008 PUSHi( PerlDir_tell(IoDIRP(io)) );
4012 SETERRNO(EBADF,RMS_ISI);
4015 DIE(aTHX_ PL_no_dir_func, "telldir");
4021 #if defined(HAS_SEEKDIR) || defined(seekdir)
4025 register IO *io = GvIOn(gv);
4027 if (!io || !IoDIRP(io))
4030 (void)PerlDir_seek(IoDIRP(io), along);
4035 SETERRNO(EBADF,RMS_ISI);
4038 DIE(aTHX_ PL_no_dir_func, "seekdir");
4044 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4047 register IO *io = GvIOn(gv);
4049 if (!io || !IoDIRP(io))
4052 (void)PerlDir_rewind(IoDIRP(io));
4056 SETERRNO(EBADF,RMS_ISI);
4059 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4065 #if defined(Direntry_t) && defined(HAS_READDIR)
4068 register IO *io = GvIOn(gv);
4070 if (!io || !IoDIRP(io))
4073 #ifdef VOID_CLOSEDIR
4074 PerlDir_close(IoDIRP(io));
4076 if (PerlDir_close(IoDIRP(io)) < 0) {
4077 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4086 SETERRNO(EBADF,RMS_IFI);
4089 DIE(aTHX_ PL_no_dir_func, "closedir");
4093 /* Process control. */
4103 PERL_FLUSHALL_FOR_CHILD;
4104 childpid = PerlProc_fork();
4108 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4109 SvREADONLY_off(GvSV(tmpgv));
4110 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4111 SvREADONLY_on(GvSV(tmpgv));
4113 #ifdef THREADS_HAVE_PIDS
4114 PL_ppid = (IV)getppid();
4116 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4121 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4126 PERL_FLUSHALL_FOR_CHILD;
4127 childpid = PerlProc_fork();
4133 DIE(aTHX_ PL_no_func, "fork");
4140 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4145 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4146 childpid = wait4pid(-1, &argflags, 0);
4148 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4153 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4154 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4155 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4157 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4162 DIE(aTHX_ PL_no_func, "wait");
4168 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4177 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4178 result = wait4pid(pid, &argflags, optype);
4180 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4185 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4186 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4187 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4189 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4194 DIE(aTHX_ PL_no_func, "waitpid");
4200 dSP; dMARK; dORIGMARK; dTARGET;
4206 while (++MARK <= SP) {
4207 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4212 TAINT_PROPER("system");
4214 PERL_FLUSHALL_FOR_CHILD;
4215 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4221 if (PerlProc_pipe(pp) >= 0)
4223 while ((childpid = PerlProc_fork()) == -1) {
4224 if (errno != EAGAIN) {
4229 PerlLIO_close(pp[0]);
4230 PerlLIO_close(pp[1]);
4237 Sigsave_t ihand,qhand; /* place to save signals during system() */
4241 PerlLIO_close(pp[1]);
4243 rsignal_save(SIGINT, SIG_IGN, &ihand);
4244 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4247 result = wait4pid(childpid, &status, 0);
4248 } while (result == -1 && errno == EINTR);
4250 (void)rsignal_restore(SIGINT, &ihand);
4251 (void)rsignal_restore(SIGQUIT, &qhand);
4253 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4254 do_execfree(); /* free any memory child malloced on fork */
4260 while (n < sizeof(int)) {
4261 n1 = PerlLIO_read(pp[0],
4262 (void*)(((char*)&errkid)+n),
4268 PerlLIO_close(pp[0]);
4269 if (n) { /* Error */
4270 if (n != sizeof(int))
4271 DIE(aTHX_ "panic: kid popen errno read");
4272 errno = errkid; /* Propagate errno from kid */
4273 STATUS_CURRENT = -1;
4276 PUSHi(STATUS_CURRENT);
4280 PerlLIO_close(pp[0]);
4281 #if defined(HAS_FCNTL) && defined(F_SETFD)
4282 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4285 if (PL_op->op_flags & OPf_STACKED) {
4286 SV *really = *++MARK;
4287 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4289 else if (SP - MARK != 1)
4290 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4292 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4296 #else /* ! FORK or VMS or OS/2 */
4299 if (PL_op->op_flags & OPf_STACKED) {
4300 SV *really = *++MARK;
4301 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4302 value = (I32)do_aspawn(really, MARK, SP);
4304 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4307 else if (SP - MARK != 1) {
4308 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4309 value = (I32)do_aspawn(Nullsv, MARK, SP);
4311 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4315 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4317 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4319 STATUS_NATIVE_SET(value);
4322 PUSHi(result ? value : STATUS_CURRENT);
4323 #endif /* !FORK or VMS */
4329 dSP; dMARK; dORIGMARK; dTARGET;
4334 while (++MARK <= SP) {
4335 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4340 TAINT_PROPER("exec");
4342 PERL_FLUSHALL_FOR_CHILD;
4343 if (PL_op->op_flags & OPf_STACKED) {
4344 SV *really = *++MARK;
4345 value = (I32)do_aexec(really, MARK, SP);
4347 else if (SP - MARK != 1)
4349 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4353 (void ) do_aspawn(Nullsv, MARK, SP);
4357 value = (I32)do_aexec(Nullsv, MARK, SP);
4362 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4365 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4368 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4381 dSP; dMARK; dTARGET;
4383 value = (I32)apply(PL_op->op_type, MARK, SP);
4388 DIE(aTHX_ PL_no_func, "kill");
4396 # ifdef THREADS_HAVE_PIDS
4397 if (PL_ppid != 1 && getppid() == 1)
4398 /* maybe the parent process has died. Refresh ppid cache */
4402 XPUSHi( getppid() );
4406 DIE(aTHX_ PL_no_func, "getppid");
4422 pgrp = (I32)BSD_GETPGRP(pid);
4424 if (pid != 0 && pid != PerlProc_getpid())
4425 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4431 DIE(aTHX_ PL_no_func, "getpgrp()");
4450 TAINT_PROPER("setpgrp");
4452 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4454 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4455 || (pid != 0 && pid != PerlProc_getpid()))
4457 DIE(aTHX_ "setpgrp can't take arguments");
4459 SETi( setpgrp() >= 0 );
4460 #endif /* USE_BSDPGRP */
4463 DIE(aTHX_ PL_no_func, "setpgrp()");
4469 #ifdef HAS_GETPRIORITY
4473 SETi( getpriority(which, who) );
4476 DIE(aTHX_ PL_no_func, "getpriority()");
4482 #ifdef HAS_SETPRIORITY
4487 TAINT_PROPER("setpriority");
4488 SETi( setpriority(which, who, niceval) >= 0 );
4491 DIE(aTHX_ PL_no_func, "setpriority()");
4501 XPUSHn( time(Null(Time_t*)) );
4503 XPUSHi( time(Null(Time_t*)) );
4514 (void)PerlProc_times(&PL_timesbuf);
4516 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4517 /* struct tms, though same data */
4521 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4522 if (GIMME == G_ARRAY) {
4523 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4524 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4525 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4531 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4533 if (GIMME == G_ARRAY) {
4534 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4535 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4536 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4540 DIE(aTHX_ "times not implemented");
4542 #endif /* HAS_TIMES */
4550 #ifdef LOCALTIME_EDGECASE_BROKEN
4551 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4556 /* No workarounds in the valid range */
4557 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4558 return (localtime (tp));
4560 /* This edge case is to workaround the undefined behaviour, where the
4561 * TIMEZONE makes the time go beyond the defined range.
4562 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4563 * If there is a negative offset in TZ, like MET-1METDST, some broken
4564 * implementations of localtime () (like AIX 5.2) barf with bogus
4566 * 0x7fffffff gmtime 2038-01-19 03:14:07
4567 * 0x7fffffff localtime 1901-12-13 21:45:51
4568 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4569 * 0x3c19137f gmtime 2001-12-13 20:45:51
4570 * 0x3c19137f localtime 2001-12-13 21:45:51
4571 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4572 * Given that legal timezones are typically between GMT-12 and GMT+12
4573 * we turn back the clock 23 hours before calling the localtime
4574 * function, and add those to the return value. This will never cause
4575 * day wrapping problems, since the edge case is Tue Jan *19*
4577 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4580 if (P->tm_hour >= 24) {
4582 P->tm_mday++; /* 18 -> 19 */
4583 P->tm_wday++; /* Mon -> Tue */
4584 P->tm_yday++; /* 18 -> 19 */
4587 } /* S_my_localtime */
4594 const struct tm *tmbuf;
4595 static const char * const dayname[] =
4596 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4597 static const char * const monname[] =
4598 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4599 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4605 when = (Time_t)SvNVx(POPs);
4607 when = (Time_t)SvIVx(POPs);
4610 if (PL_op->op_type == OP_LOCALTIME)
4611 #ifdef LOCALTIME_EDGECASE_BROKEN
4612 tmbuf = S_my_localtime(aTHX_ &when);
4614 tmbuf = localtime(&when);
4617 tmbuf = gmtime(&when);
4619 if (GIMME != G_ARRAY) {
4625 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4626 dayname[tmbuf->tm_wday],
4627 monname[tmbuf->tm_mon],
4632 tmbuf->tm_year + 1900);
4633 PUSHs(sv_2mortal(tsv));
4638 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4639 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4640 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4641 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4642 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4643 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4644 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4645 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4646 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4657 anum = alarm((unsigned int)anum);
4664 DIE(aTHX_ PL_no_func, "alarm");
4675 (void)time(&lasttime);
4680 PerlProc_sleep((unsigned int)duration);
4683 XPUSHi(when - lasttime);
4687 /* Shared memory. */
4701 return pp_shmwrite();
4706 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4707 dSP; dMARK; dTARGET;
4708 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4717 /* Message passing. */
4731 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4732 dSP; dMARK; dTARGET;
4733 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4744 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4745 dSP; dMARK; dTARGET;
4746 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4759 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4760 dSP; dMARK; dTARGET;
4761 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4768 DIE(aTHX_ "System V IPC is not implemented on this machine");
4774 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4775 dSP; dMARK; dTARGET;
4776 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4784 PUSHp(zero_but_true, ZBTLEN);
4794 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4795 dSP; dMARK; dTARGET;
4796 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4805 /* Get system info. */
4809 #ifdef HAS_GETHOSTBYNAME
4810 return pp_ghostent();
4812 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4818 #ifdef HAS_GETHOSTBYADDR
4819 return pp_ghostent();
4821 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4827 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4829 I32 which = PL_op->op_type;
4830 register char **elem;
4832 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4833 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4834 struct hostent *gethostbyname(Netdb_name_t);
4835 struct hostent *gethostent(void);
4837 struct hostent *hent;
4841 if (which == OP_GHBYNAME) {
4842 #ifdef HAS_GETHOSTBYNAME
4843 char* name = POPpbytex;
4844 hent = PerlSock_gethostbyname(name);
4846 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4849 else if (which == OP_GHBYADDR) {
4850 #ifdef HAS_GETHOSTBYADDR
4851 int addrtype = POPi;
4854 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4856 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4858 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4862 #ifdef HAS_GETHOSTENT
4863 hent = PerlSock_gethostent();
4865 DIE(aTHX_ PL_no_sock_func, "gethostent");
4868 #ifdef HOST_NOT_FOUND
4870 #ifdef USE_REENTRANT_API
4871 # ifdef USE_GETHOSTENT_ERRNO
4872 h_errno = PL_reentrant_buffer->_gethostent_errno;
4875 STATUS_NATIVE_SET(h_errno);
4879 if (GIMME != G_ARRAY) {
4880 PUSHs(sv = sv_newmortal());
4882 if (which == OP_GHBYNAME) {
4884 sv_setpvn(sv, hent->h_addr, hent->h_length);
4887 sv_setpv(sv, (char*)hent->h_name);
4893 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4894 sv_setpv(sv, (char*)hent->h_name);
4895 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4896 for (elem = hent->h_aliases; elem && *elem; elem++) {
4897 sv_catpv(sv, *elem);
4899 sv_catpvn(sv, " ", 1);
4901 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4902 sv_setiv(sv, (IV)hent->h_addrtype);
4903 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4904 len = hent->h_length;
4905 sv_setiv(sv, (IV)len);
4907 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4908 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4909 sv_setpvn(sv, *elem, len);
4912 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4914 sv_setpvn(sv, hent->h_addr, len);
4919 DIE(aTHX_ PL_no_sock_func, "gethostent");
4925 #ifdef HAS_GETNETBYNAME
4926 return pp_gnetent();
4928 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4934 #ifdef HAS_GETNETBYADDR
4935 return pp_gnetent();
4937 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4943 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4945 I32 which = PL_op->op_type;
4946 register char **elem;
4948 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4949 struct netent *getnetbyaddr(Netdb_net_t, int);
4950 struct netent *getnetbyname(Netdb_name_t);
4951 struct netent *getnetent(void);
4953 struct netent *nent;
4955 if (which == OP_GNBYNAME){
4956 #ifdef HAS_GETNETBYNAME
4957 char *name = POPpbytex;
4958 nent = PerlSock_getnetbyname(name);
4960 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4963 else if (which == OP_GNBYADDR) {
4964 #ifdef HAS_GETNETBYADDR
4965 int addrtype = POPi;
4966 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4967 nent = PerlSock_getnetbyaddr(addr, addrtype);
4969 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4973 #ifdef HAS_GETNETENT
4974 nent = PerlSock_getnetent();
4976 DIE(aTHX_ PL_no_sock_func, "getnetent");
4979 #ifdef HOST_NOT_FOUND
4981 #ifdef USE_REENTRANT_API
4982 # ifdef USE_GETNETENT_ERRNO
4983 h_errno = PL_reentrant_buffer->_getnetent_errno;
4986 STATUS_NATIVE_SET(h_errno);
4991 if (GIMME != G_ARRAY) {
4992 PUSHs(sv = sv_newmortal());
4994 if (which == OP_GNBYNAME)
4995 sv_setiv(sv, (IV)nent->n_net);
4997 sv_setpv(sv, nent->n_name);
5003 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5004 sv_setpv(sv, nent->n_name);
5005 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5006 for (elem = nent->n_aliases; elem && *elem; elem++) {
5007 sv_catpv(sv, *elem);
5009 sv_catpvn(sv, " ", 1);
5011 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5012 sv_setiv(sv, (IV)nent->n_addrtype);
5013 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5014 sv_setiv(sv, (IV)nent->n_net);
5019 DIE(aTHX_ PL_no_sock_func, "getnetent");
5025 #ifdef HAS_GETPROTOBYNAME
5026 return pp_gprotoent();
5028 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5034 #ifdef HAS_GETPROTOBYNUMBER
5035 return pp_gprotoent();
5037 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5043 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
5045 I32 which = PL_op->op_type;
5046 register char **elem;
5048 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
5049 struct protoent *getprotobyname(Netdb_name_t);
5050 struct protoent *getprotobynumber(int);
5051 struct protoent *getprotoent(void);
5053 struct protoent *pent;
5055 if (which == OP_GPBYNAME) {
5056 #ifdef HAS_GETPROTOBYNAME
5057 char* name = POPpbytex;
5058 pent = PerlSock_getprotobyname(name);
5060 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5063 else if (which == OP_GPBYNUMBER) {
5064 #ifdef HAS_GETPROTOBYNUMBER
5066 pent = PerlSock_getprotobynumber(number);
5068 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5072 #ifdef HAS_GETPROTOENT
5073 pent = PerlSock_getprotoent();
5075 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5079 if (GIMME != G_ARRAY) {
5080 PUSHs(sv = sv_newmortal());
5082 if (which == OP_GPBYNAME)
5083 sv_setiv(sv, (IV)pent->p_proto);
5085 sv_setpv(sv, pent->p_name);
5091 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5092 sv_setpv(sv, pent->p_name);
5093 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5094 for (elem = pent->p_aliases; elem && *elem; elem++) {
5095 sv_catpv(sv, *elem);
5097 sv_catpvn(sv, " ", 1);
5099 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5100 sv_setiv(sv, (IV)pent->p_proto);
5105 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5111 #ifdef HAS_GETSERVBYNAME
5112 return pp_gservent();
5114 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5120 #ifdef HAS_GETSERVBYPORT
5121 return pp_gservent();
5123 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5129 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5131 I32 which = PL_op->op_type;
5132 register char **elem;
5134 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5135 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5136 struct servent *getservbyport(int, Netdb_name_t);
5137 struct servent *getservent(void);
5139 struct servent *sent;
5141 if (which == OP_GSBYNAME) {
5142 #ifdef HAS_GETSERVBYNAME
5143 char *proto = POPpbytex;
5144 char *name = POPpbytex;
5146 if (proto && !*proto)
5149 sent = PerlSock_getservbyname(name, proto);
5151 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5154 else if (which == OP_GSBYPORT) {
5155 #ifdef HAS_GETSERVBYPORT
5156 char *proto = POPpbytex;
5157 unsigned short port = (unsigned short)POPu;
5159 if (proto && !*proto)
5163 port = PerlSock_htons(port);
5165 sent = PerlSock_getservbyport(port, proto);
5167 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5171 #ifdef HAS_GETSERVENT
5172 sent = PerlSock_getservent();
5174 DIE(aTHX_ PL_no_sock_func, "getservent");
5178 if (GIMME != G_ARRAY) {
5179 PUSHs(sv = sv_newmortal());
5181 if (which == OP_GSBYNAME) {
5183 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5185 sv_setiv(sv, (IV)(sent->s_port));
5189 sv_setpv(sv, sent->s_name);
5195 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5196 sv_setpv(sv, sent->s_name);
5197 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5198 for (elem = sent->s_aliases; elem && *elem; elem++) {
5199 sv_catpv(sv, *elem);
5201 sv_catpvn(sv, " ", 1);
5203 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5205 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5207 sv_setiv(sv, (IV)(sent->s_port));
5209 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5210 sv_setpv(sv, sent->s_proto);
5215 DIE(aTHX_ PL_no_sock_func, "getservent");
5221 #ifdef HAS_SETHOSTENT
5223 PerlSock_sethostent(TOPi);
5226 DIE(aTHX_ PL_no_sock_func, "sethostent");
5232 #ifdef HAS_SETNETENT
5234 PerlSock_setnetent(TOPi);
5237 DIE(aTHX_ PL_no_sock_func, "setnetent");
5243 #ifdef HAS_SETPROTOENT
5245 PerlSock_setprotoent(TOPi);
5248 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5254 #ifdef HAS_SETSERVENT
5256 PerlSock_setservent(TOPi);
5259 DIE(aTHX_ PL_no_sock_func, "setservent");
5265 #ifdef HAS_ENDHOSTENT
5267 PerlSock_endhostent();
5271 DIE(aTHX_ PL_no_sock_func, "endhostent");
5277 #ifdef HAS_ENDNETENT
5279 PerlSock_endnetent();
5283 DIE(aTHX_ PL_no_sock_func, "endnetent");
5289 #ifdef HAS_ENDPROTOENT
5291 PerlSock_endprotoent();
5295 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5301 #ifdef HAS_ENDSERVENT
5303 PerlSock_endservent();
5307 DIE(aTHX_ PL_no_sock_func, "endservent");
5316 DIE(aTHX_ PL_no_func, "getpwnam");
5325 DIE(aTHX_ PL_no_func, "getpwuid");
5333 I32 which = PL_op->op_type;
5335 struct passwd *pwent = NULL;
5337 * We currently support only the SysV getsp* shadow password interface.
5338 * The interface is declared in <shadow.h> and often one needs to link
5339 * with -lsecurity or some such.
5340 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5343 * AIX getpwnam() is clever enough to return the encrypted password
5344 * only if the caller (euid?) is root.
5346 * There are at least three other shadow password APIs. Many platforms
5347 * seem to contain more than one interface for accessing the shadow
5348 * password databases, possibly for compatibility reasons.
5349 * The getsp*() is by far he simplest one, the other two interfaces
5350 * are much more complicated, but also very similar to each other.
5355 * struct pr_passwd *getprpw*();
5356 * The password is in
5357 * char getprpw*(...).ufld.fd_encrypt[]
5358 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5363 * struct es_passwd *getespw*();
5364 * The password is in
5365 * char *(getespw*(...).ufld.fd_encrypt)
5366 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5369 * struct userpw *getuserpw();
5370 * The password is in
5371 * char *(getuserpw(...)).spw_upw_passwd
5372 * (but the de facto standard getpwnam() should work okay)
5374 * Mention I_PROT here so that Configure probes for it.
5376 * In HP-UX for getprpw*() the manual page claims that one should include
5377 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5378 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5379 * and pp_sys.c already includes <shadow.h> if there is such.
5381 * Note that <sys/security.h> is already probed for, but currently
5382 * it is only included in special cases.
5384 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5385 * be preferred interface, even though also the getprpw*() interface
5386 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5387 * One also needs to call set_auth_parameters() in main() before
5388 * doing anything else, whether one is using getespw*() or getprpw*().
5390 * Note that accessing the shadow databases can be magnitudes
5391 * slower than accessing the standard databases.
5396 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5397 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5398 * the pw_comment is left uninitialized. */
5399 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5405 char* name = POPpbytex;
5406 pwent = getpwnam(name);
5412 pwent = getpwuid(uid);
5416 # ifdef HAS_GETPWENT
5418 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5419 if (pwent) pwent = getpwnam(pwent->pw_name);
5422 DIE(aTHX_ PL_no_func, "getpwent");
5428 if (GIMME != G_ARRAY) {
5429 PUSHs(sv = sv_newmortal());
5431 if (which == OP_GPWNAM)
5432 # if Uid_t_sign <= 0
5433 sv_setiv(sv, (IV)pwent->pw_uid);
5435 sv_setuv(sv, (UV)pwent->pw_uid);
5438 sv_setpv(sv, pwent->pw_name);
5444 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5445 sv_setpv(sv, pwent->pw_name);
5447 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5449 /* If we have getspnam(), we try to dig up the shadow
5450 * password. If we are underprivileged, the shadow
5451 * interface will set the errno to EACCES or similar,
5452 * and return a null pointer. If this happens, we will
5453 * use the dummy password (usually "*" or "x") from the
5454 * standard password database.
5456 * In theory we could skip the shadow call completely
5457 * if euid != 0 but in practice we cannot know which
5458 * security measures are guarding the shadow databases
5459 * on a random platform.
5461 * Resist the urge to use additional shadow interfaces.
5462 * Divert the urge to writing an extension instead.
5465 /* Some AIX setups falsely(?) detect some getspnam(), which
5466 * has a different API than the Solaris/IRIX one. */
5467 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5469 struct spwd *spwent;
5470 int saverrno; /* Save and restore errno so that
5471 * underprivileged attempts seem
5472 * to have never made the unsccessful
5473 * attempt to retrieve the shadow password. */
5476 spwent = getspnam(pwent->pw_name);
5478 if (spwent && spwent->sp_pwdp)
5479 sv_setpv(sv, spwent->sp_pwdp);
5483 if (!SvPOK(sv)) /* Use the standard password, then. */
5484 sv_setpv(sv, pwent->pw_passwd);
5487 # ifndef INCOMPLETE_TAINTS
5488 /* passwd is tainted because user himself can diddle with it.
5489 * admittedly not much and in a very limited way, but nevertheless. */
5493 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5494 # if Uid_t_sign <= 0
5495 sv_setiv(sv, (IV)pwent->pw_uid);
5497 sv_setuv(sv, (UV)pwent->pw_uid);
5500 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5501 # if Uid_t_sign <= 0
5502 sv_setiv(sv, (IV)pwent->pw_gid);
5504 sv_setuv(sv, (UV)pwent->pw_gid);
5506 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5507 * because of the poor interface of the Perl getpw*(),
5508 * not because there's some standard/convention saying so.
5509 * A better interface would have been to return a hash,
5510 * but we are accursed by our history, alas. --jhi. */
5511 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5513 sv_setiv(sv, (IV)pwent->pw_change);
5516 sv_setiv(sv, (IV)pwent->pw_quota);
5519 sv_setpv(sv, pwent->pw_age);
5524 /* pw_class and pw_comment are mutually exclusive--.
5525 * see the above note for pw_change, pw_quota, and pw_age. */
5526 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5528 sv_setpv(sv, pwent->pw_class);
5531 sv_setpv(sv, pwent->pw_comment);
5535 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5537 sv_setpv(sv, pwent->pw_gecos);
5539 # ifndef INCOMPLETE_TAINTS
5540 /* pw_gecos is tainted because user himself can diddle with it. */
5544 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5545 sv_setpv(sv, pwent->pw_dir);
5547 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5548 sv_setpv(sv, pwent->pw_shell);
5549 # ifndef INCOMPLETE_TAINTS
5550 /* pw_shell is tainted because user himself can diddle with it. */
5555 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5556 sv_setiv(sv, (IV)pwent->pw_expire);
5561 DIE(aTHX_ PL_no_func, "getpwent");
5567 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5572 DIE(aTHX_ PL_no_func, "setpwent");
5578 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5583 DIE(aTHX_ PL_no_func, "endpwent");
5592 DIE(aTHX_ PL_no_func, "getgrnam");
5601 DIE(aTHX_ PL_no_func, "getgrgid");
5609 I32 which = PL_op->op_type;
5610 register char **elem;
5612 struct group *grent;
5614 if (which == OP_GGRNAM) {
5615 char* name = POPpbytex;
5616 grent = (struct group *)getgrnam(name);
5618 else if (which == OP_GGRGID) {
5620 grent = (struct group *)getgrgid(gid);
5624 grent = (struct group *)getgrent();
5626 DIE(aTHX_ PL_no_func, "getgrent");
5630 if (GIMME != G_ARRAY) {
5631 PUSHs(sv = sv_newmortal());
5633 if (which == OP_GGRNAM)
5634 sv_setiv(sv, (IV)grent->gr_gid);
5636 sv_setpv(sv, grent->gr_name);
5642 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5643 sv_setpv(sv, grent->gr_name);
5645 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5647 sv_setpv(sv, grent->gr_passwd);
5650 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5651 sv_setiv(sv, (IV)grent->gr_gid);
5653 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5654 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5655 /* In UNICOS/mk (_CRAYMPP) the multithreading
5656 * versions (getgrnam_r, getgrgid_r)
5657 * seem to return an illegal pointer
5658 * as the group members list, gr_mem.
5659 * getgrent() doesn't even have a _r version
5660 * but the gr_mem is poisonous anyway.
5661 * So yes, you cannot get the list of group
5662 * members if building multithreaded in UNICOS/mk. */
5663 for (elem = grent->gr_mem; elem && *elem; elem++) {
5664 sv_catpv(sv, *elem);
5666 sv_catpvn(sv, " ", 1);
5673 DIE(aTHX_ PL_no_func, "getgrent");
5679 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5684 DIE(aTHX_ PL_no_func, "setgrent");
5690 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5695 DIE(aTHX_ PL_no_func, "endgrent");
5705 if (!(tmps = PerlProc_getlogin()))
5707 PUSHp(tmps, strlen(tmps));
5710 DIE(aTHX_ PL_no_func, "getlogin");
5714 /* Miscellaneous. */
5719 dSP; dMARK; dORIGMARK; dTARGET;
5720 register I32 items = SP - MARK;
5721 unsigned long a[20];
5726 while (++MARK <= SP) {
5727 if (SvTAINTED(*MARK)) {
5733 TAINT_PROPER("syscall");
5736 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5737 * or where sizeof(long) != sizeof(char*). But such machines will
5738 * not likely have syscall implemented either, so who cares?
5740 while (++MARK <= SP) {
5741 if (SvNIOK(*MARK) || !i)
5742 a[i++] = SvIV(*MARK);
5743 else if (*MARK == &PL_sv_undef)
5746 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5752 DIE(aTHX_ "Too many args to syscall");
5754 DIE(aTHX_ "Too few args to syscall");
5756 retval = syscall(a[0]);
5759 retval = syscall(a[0],a[1]);
5762 retval = syscall(a[0],a[1],a[2]);
5765 retval = syscall(a[0],a[1],a[2],a[3]);
5768 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5771 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5774 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5777 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5781 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5784 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5787 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5791 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5795 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5799 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5800 a[10],a[11],a[12],a[13]);
5802 #endif /* atarist */
5808 DIE(aTHX_ PL_no_func, "syscall");
5812 #ifdef FCNTL_EMULATE_FLOCK
5814 /* XXX Emulate flock() with fcntl().
5815 What's really needed is a good file locking module.
5819 fcntl_emulate_flock(int fd, int operation)
5823 switch (operation & ~LOCK_NB) {
5825 flock.l_type = F_RDLCK;
5828 flock.l_type = F_WRLCK;
5831 flock.l_type = F_UNLCK;
5837 flock.l_whence = SEEK_SET;
5838 flock.l_start = flock.l_len = (Off_t)0;
5840 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5843 #endif /* FCNTL_EMULATE_FLOCK */
5845 #ifdef LOCKF_EMULATE_FLOCK
5847 /* XXX Emulate flock() with lockf(). This is just to increase
5848 portability of scripts. The calls are not completely
5849 interchangeable. What's really needed is a good file
5853 /* The lockf() constants might have been defined in <unistd.h>.
5854 Unfortunately, <unistd.h> causes troubles on some mixed
5855 (BSD/POSIX) systems, such as SunOS 4.1.3.
5857 Further, the lockf() constants aren't POSIX, so they might not be
5858 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5859 just stick in the SVID values and be done with it. Sigh.
5863 # define F_ULOCK 0 /* Unlock a previously locked region */
5866 # define F_LOCK 1 /* Lock a region for exclusive use */
5869 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5872 # define F_TEST 3 /* Test a region for other processes locks */
5876 lockf_emulate_flock(int fd, int operation)
5882 /* flock locks entire file so for lockf we need to do the same */
5884 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5885 if (pos > 0) /* is seekable and needs to be repositioned */
5886 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5887 pos = -1; /* seek failed, so don't seek back afterwards */
5890 switch (operation) {
5892 /* LOCK_SH - get a shared lock */
5894 /* LOCK_EX - get an exclusive lock */
5896 i = lockf (fd, F_LOCK, 0);
5899 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5900 case LOCK_SH|LOCK_NB:
5901 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5902 case LOCK_EX|LOCK_NB:
5903 i = lockf (fd, F_TLOCK, 0);
5905 if ((errno == EAGAIN) || (errno == EACCES))
5906 errno = EWOULDBLOCK;
5909 /* LOCK_UN - unlock (non-blocking is a no-op) */
5911 case LOCK_UN|LOCK_NB:
5912 i = lockf (fd, F_ULOCK, 0);
5915 /* Default - can't decipher operation */
5922 if (pos > 0) /* need to restore position of the handle */
5923 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5928 #endif /* LOCKF_EMULATE_FLOCK */
5932 * c-indentation-style: bsd
5934 * indent-tabs-mode: t
5937 * ex: set ts=8 sts=4 sw=4 noet: