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 /* F_OK unused: if stat() cannot find it... */
206 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
207 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
208 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
209 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
210 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
213 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
214 # ifdef I_SYS_SECURITY
215 # include <sys/security.h>
219 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
220 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
221 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
224 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
225 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
226 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
230 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
232 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
233 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
234 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
237 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
238 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
239 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
242 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
244 Uid_t ruid = getuid();
245 Uid_t euid = geteuid();
246 Gid_t rgid = getgid();
247 Gid_t egid = getegid();
251 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
252 Perl_croak(aTHX_ "switching effective uid is not implemented");
255 if (setreuid(euid, ruid))
258 if (setresuid(euid, ruid, (Uid_t)-1))
261 Perl_croak(aTHX_ "entering effective uid failed");
264 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
265 Perl_croak(aTHX_ "switching effective gid is not implemented");
268 if (setregid(egid, rgid))
271 if (setresgid(egid, rgid, (Gid_t)-1))
274 Perl_croak(aTHX_ "entering effective gid failed");
277 res = access(path, mode);
280 if (setreuid(ruid, euid))
283 if (setresuid(ruid, euid, (Uid_t)-1))
286 Perl_croak(aTHX_ "leaving effective uid failed");
289 if (setregid(rgid, egid))
292 if (setresgid(rgid, egid, (Gid_t)-1))
295 Perl_croak(aTHX_ "leaving effective gid failed");
300 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
301 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
302 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
305 #if !defined(PERL_EFF_ACCESS_R_OK)
306 /* With it or without it: anyway you get a warning: either that
307 it is unused, or it is declared static and never defined.
310 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
314 Perl_croak(aTHX_ "switching effective uid is not implemented");
326 const I32 gimme = GIMME_V;
327 const char *mode = "r";
330 if (PL_op->op_private & OPpOPEN_IN_RAW)
332 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
334 fp = PerlProc_popen(tmps, (char *)mode);
336 const char *type = NULL;
337 if (PL_curcop->cop_io) {
338 type = SvPV_nolen(PL_curcop->cop_io);
341 PerlIO_apply_layers(aTHX_ fp,mode,type);
343 if (gimme == G_VOID) {
345 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
349 else if (gimme == G_SCALAR) {
352 PL_rs = &PL_sv_undef;
353 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
354 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
366 if (sv_gets(sv, fp, 0) == Nullch) {
370 XPUSHs(sv_2mortal(sv));
371 if (SvLEN(sv) - SvCUR(sv) > 20) {
372 SvPV_shrink_to_cur(sv);
377 STATUS_NATIVE_SET(PerlProc_pclose(fp));
378 TAINT; /* "I believe that this is not gratuitous!" */
381 STATUS_NATIVE_SET(-1);
382 if (gimme == G_SCALAR)
393 tryAMAGICunTARGET(iter, -1);
395 /* Note that we only ever get here if File::Glob fails to load
396 * without at the same time croaking, for some reason, or if
397 * perl was built with PERL_EXTERNAL_GLOB */
404 * The external globbing program may use things we can't control,
405 * so for security reasons we must assume the worst.
408 taint_proper(PL_no_security, "glob");
412 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
413 PL_last_in_gv = (GV*)*PL_stack_sp--;
415 SAVESPTR(PL_rs); /* This is not permanent, either. */
416 PL_rs = sv_2mortal(newSVpvn("\000", 1));
419 *SvPVX(PL_rs) = '\n';
423 result = do_readline();
430 PL_last_in_gv = cGVOP_gv;
431 return do_readline();
440 if (SP - MARK != 1) {
442 do_join(TARG, &PL_sv_no, MARK, SP);
449 tmps = SvPV(tmpsv, len);
450 if ((!tmps || !len) && PL_errgv) {
452 (void)SvUPGRADE(error, SVt_PV);
453 if (SvPOK(error) && SvCUR(error))
454 sv_catpv(error, "\t...caught");
456 tmps = SvPV(tmpsv, len);
459 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
461 Perl_warn(aTHX_ "%"SVf, tmpsv);
473 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
475 if (SP - MARK != 1) {
477 do_join(TARG, &PL_sv_no, MARK, SP);
479 tmps = SvPV(tmpsv, len);
485 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
489 (void)SvUPGRADE(error, SVt_PV);
490 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
492 SvSetSV(error,tmpsv);
493 else if (sv_isobject(error)) {
494 HV *stash = SvSTASH(SvRV(error));
495 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
497 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
498 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
505 call_sv((SV*)GvCV(gv),
506 G_SCALAR|G_EVAL|G_KEEPERR);
507 sv_setsv(error,*PL_stack_sp--);
513 if (SvPOK(error) && SvCUR(error))
514 sv_catpv(error, "\t...propagated");
516 tmps = SvPV(tmpsv, len);
520 tmpsv = sv_2mortal(newSVpvn("Died", 4));
522 DIE(aTHX_ "%"SVf, tmpsv);
542 DIE(aTHX_ PL_no_usym, "filehandle");
543 if ((io = GvIOp(gv)))
544 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
546 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
547 /* Method's args are same as ours ... */
548 /* ... except handle is replaced by the object */
549 *MARK-- = SvTIED_obj((SV*)io, mg);
553 call_method("OPEN", G_SCALAR);
566 tmps = SvPV(sv, len);
567 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
570 PUSHi( (I32)PL_forkprocess );
571 else if (PL_forkprocess == 0) /* we are a new child */
590 if (gv && (io = GvIO(gv))
591 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
594 XPUSHs(SvTIED_obj((SV*)io, mg));
597 call_method("CLOSE", G_SCALAR);
603 PUSHs(boolSV(do_close(gv, TRUE)));
623 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
624 DIE(aTHX_ PL_no_usym, "filehandle");
629 do_close(rgv, FALSE);
631 do_close(wgv, FALSE);
633 if (PerlProc_pipe(fd) < 0)
636 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
637 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
638 IoOFP(rstio) = IoIFP(rstio);
639 IoIFP(wstio) = IoOFP(wstio);
640 IoTYPE(rstio) = IoTYPE_RDONLY;
641 IoTYPE(wstio) = IoTYPE_WRONLY;
643 if (!IoIFP(rstio) || !IoOFP(wstio)) {
644 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
645 else PerlLIO_close(fd[0]);
646 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
647 else PerlLIO_close(fd[1]);
650 #if defined(HAS_FCNTL) && defined(F_SETFD)
651 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
652 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
659 DIE(aTHX_ PL_no_func, "pipe");
675 if (gv && (io = GvIO(gv))
676 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
679 XPUSHs(SvTIED_obj((SV*)io, mg));
682 call_method("FILENO", G_SCALAR);
688 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
689 /* Can't do this because people seem to do things like
690 defined(fileno($foo)) to check whether $foo is a valid fh.
691 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
692 report_evil_fh(gv, io, PL_op->op_type);
697 PUSHi(PerlIO_fileno(fp));
709 anum = PerlLIO_umask(0);
710 (void)PerlLIO_umask(anum);
713 anum = PerlLIO_umask(POPi);
714 TAINT_PROPER("umask");
717 /* Only DIE if trying to restrict permissions on `user' (self).
718 * Otherwise it's harmless and more useful to just return undef
719 * since 'group' and 'other' concepts probably don't exist here. */
720 if (MAXARG >= 1 && (POPi & 0700))
721 DIE(aTHX_ "umask not implemented");
722 XPUSHs(&PL_sv_undef);
744 if (gv && (io = GvIO(gv))
745 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
748 XPUSHs(SvTIED_obj((SV*)io, mg));
753 call_method("BINMODE", G_SCALAR);
760 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
761 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
762 report_evil_fh(gv, io, PL_op->op_type);
763 SETERRNO(EBADF,RMS_IFI);
768 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
769 (discp) ? SvPV_nolen(discp) : Nullch)) {
770 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
771 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
772 mode_from_discipline(discp),
773 (discp) ? SvPV_nolen(discp) : Nullch)) {
794 I32 markoff = MARK - PL_stack_base;
795 const char *methname;
796 int how = PERL_MAGIC_tied;
800 switch(SvTYPE(varsv)) {
802 methname = "TIEHASH";
803 HvEITER_set((HV *)varsv, 0);
806 methname = "TIEARRAY";
809 #ifdef GV_UNIQUE_CHECK
810 if (GvUNIQUE((GV*)varsv)) {
811 Perl_croak(aTHX_ "Attempt to tie unique GV");
814 methname = "TIEHANDLE";
815 how = PERL_MAGIC_tiedscalar;
816 /* For tied filehandles, we apply tiedscalar magic to the IO
817 slot of the GP rather than the GV itself. AMS 20010812 */
819 GvIOp(varsv) = newIO();
820 varsv = (SV *)GvIOp(varsv);
823 methname = "TIESCALAR";
824 how = PERL_MAGIC_tiedscalar;
828 if (sv_isobject(*MARK)) {
830 PUSHSTACKi(PERLSI_MAGIC);
832 EXTEND(SP,(I32)items);
836 call_method(methname, G_SCALAR);
839 /* Not clear why we don't call call_method here too.
840 * perhaps to get different error message ?
842 stash = gv_stashsv(*MARK, FALSE);
843 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
844 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
848 PUSHSTACKi(PERLSI_MAGIC);
850 EXTEND(SP,(I32)items);
854 call_sv((SV*)GvCV(gv), G_SCALAR);
860 if (sv_isobject(sv)) {
861 sv_unmagic(varsv, how);
862 /* Croak if a self-tie on an aggregate is attempted. */
863 if (varsv == SvRV(sv) &&
864 (SvTYPE(varsv) == SVt_PVAV ||
865 SvTYPE(varsv) == SVt_PVHV))
867 "Self-ties of arrays and hashes are not supported");
868 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
871 SP = PL_stack_base + markoff;
881 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
882 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
884 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
887 if ((mg = SvTIED_mg(sv, how))) {
888 SV *obj = SvRV(SvTIED_obj(sv, mg));
892 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
893 isGV(gv) && (cv = GvCV(gv))) {
895 XPUSHs(SvTIED_obj((SV*)gv, mg));
896 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
899 call_sv((SV *)cv, G_VOID);
903 else if (ckWARN(WARN_UNTIE)) {
904 if (mg && SvREFCNT(obj) > 1)
905 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
906 "untie attempted while %"UVuf" inner references still exist",
907 (UV)SvREFCNT(obj) - 1 ) ;
911 sv_unmagic(sv, how) ;
920 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
921 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
923 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
926 if ((mg = SvTIED_mg(sv, how))) {
927 SV *osv = SvTIED_obj(sv, mg);
928 if (osv == mg->mg_obj)
929 osv = sv_mortalcopy(osv);
947 sv = sv_mortalcopy(&PL_sv_no);
948 sv_setpv(sv, "AnyDBM_File");
949 stash = gv_stashsv(sv, FALSE);
950 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
952 require_pv("AnyDBM_File.pm");
954 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
955 DIE(aTHX_ "No dbm on this machine");
965 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
967 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
970 call_sv((SV*)GvCV(gv), G_SCALAR);
973 if (!sv_isobject(TOPs)) {
978 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
981 call_sv((SV*)GvCV(gv), G_SCALAR);
985 if (sv_isobject(TOPs)) {
986 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
987 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1009 struct timeval timebuf;
1010 struct timeval *tbuf = &timebuf;
1014 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1019 # if BYTEORDER & 0xf0000
1020 # define ORDERBYTE (0x88888888 - BYTEORDER)
1022 # define ORDERBYTE (0x4444 - BYTEORDER)
1028 for (i = 1; i <= 3; i++) {
1036 /* little endians can use vecs directly */
1037 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1044 masksize = NFDBITS / NBBY;
1046 masksize = sizeof(long); /* documented int, everyone seems to use long */
1048 Zero(&fd_sets[0], 4, char*);
1051 # if SELECT_MIN_BITS == 1
1052 growsize = sizeof(fd_set);
1054 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1055 # undef SELECT_MIN_BITS
1056 # define SELECT_MIN_BITS __FD_SETSIZE
1058 /* If SELECT_MIN_BITS is greater than one we most probably will want
1059 * to align the sizes with SELECT_MIN_BITS/8 because for example
1060 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1061 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1062 * on (sets/tests/clears bits) is 32 bits. */
1063 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1071 timebuf.tv_sec = (long)value;
1072 value -= (NV)timebuf.tv_sec;
1073 timebuf.tv_usec = (long)(value * 1000000.0);
1076 tbuf = Null(struct timeval*);
1078 for (i = 1; i <= 3; i++) {
1084 else if (!SvPOK(sv))
1085 SvPV_force(sv,n_a); /* force string conversion */
1088 Sv_Grow(sv, growsize);
1092 while (++j <= growsize) {
1096 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1098 New(403, fd_sets[i], growsize, char);
1099 for (offset = 0; offset < growsize; offset += masksize) {
1100 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1101 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1104 fd_sets[i] = SvPVX(sv);
1108 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1109 /* Can't make just the (void*) conditional because that would be
1110 * cpp #if within cpp macro, and not all compilers like that. */
1111 nfound = PerlSock_select(
1113 (Select_fd_set_t) fd_sets[1],
1114 (Select_fd_set_t) fd_sets[2],
1115 (Select_fd_set_t) fd_sets[3],
1116 (void*) tbuf); /* Workaround for compiler bug. */
1118 nfound = PerlSock_select(
1120 (Select_fd_set_t) fd_sets[1],
1121 (Select_fd_set_t) fd_sets[2],
1122 (Select_fd_set_t) fd_sets[3],
1125 for (i = 1; i <= 3; i++) {
1128 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1130 for (offset = 0; offset < growsize; offset += masksize) {
1131 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1132 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1134 Safefree(fd_sets[i]);
1141 PUSHs(&PL_sv_undef);
1144 if (GIMME == G_ARRAY && tbuf) {
1145 value = (NV)(timebuf.tv_sec) +
1146 (NV)(timebuf.tv_usec) / 1000000.0;
1147 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1148 sv_setnv(sv, value);
1152 DIE(aTHX_ "select not implemented");
1157 Perl_setdefout(pTHX_ GV *gv)
1160 (void)SvREFCNT_inc(gv);
1162 SvREFCNT_dec(PL_defoutgv);
1169 GV *newdefout, *egv;
1172 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1174 egv = GvEGV(PL_defoutgv);
1179 XPUSHs(&PL_sv_undef);
1181 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1182 if (gvp && *gvp == egv) {
1183 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1187 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1192 if (!GvIO(newdefout))
1193 gv_IOadd(newdefout);
1194 setdefout(newdefout);
1212 if (gv && (io = GvIO(gv))
1213 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1215 const I32 gimme = GIMME_V;
1217 XPUSHs(SvTIED_obj((SV*)io, mg));
1220 call_method("GETC", gimme);
1223 if (gimme == G_SCALAR)
1224 SvSetMagicSV_nosteal(TARG, TOPs);
1227 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1228 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1229 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1230 report_evil_fh(gv, io, PL_op->op_type);
1231 SETERRNO(EBADF,RMS_IFI);
1235 sv_setpvn(TARG, " ", 1);
1236 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1237 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1238 /* Find out how many bytes the char needs */
1239 Size_t len = UTF8SKIP(SvPVX(TARG));
1242 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1243 SvCUR_set(TARG,1+len);
1253 return pp_sysread();
1257 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1260 register PERL_CONTEXT *cx;
1261 const I32 gimme = GIMME_V;
1266 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1268 cx->blk_sub.retop = retop;
1269 PAD_SET_CUR(CvPADLIST(cv), 1);
1271 setdefout(gv); /* locally select filehandle so $% et al work */
1304 SV *tmpsv = sv_newmortal();
1305 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1306 name = SvPV_nolen(tmpsv);
1309 DIE(aTHX_ "Undefined format \"%s\" called", name);
1310 DIE(aTHX_ "Not a format reference");
1313 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1315 IoFLAGS(io) &= ~IOf_DIDTOP;
1316 return doform(cv,gv,PL_op->op_next);
1322 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1323 register IO *io = GvIOp(gv);
1324 PerlIO *ofp = IoOFP(io);
1328 register PERL_CONTEXT *cx;
1330 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1331 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1334 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1335 PL_formtarget != PL_toptarget)
1339 if (!IoTOP_GV(io)) {
1343 if (!IoTOP_NAME(io)) {
1344 if (!IoFMT_NAME(io))
1345 IoFMT_NAME(io) = savepv(GvNAME(gv));
1346 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1347 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1348 if ((topgv && GvFORM(topgv)) ||
1349 !gv_fetchpv("top",FALSE,SVt_PVFM))
1350 IoTOP_NAME(io) = savesvpv(topname);
1352 IoTOP_NAME(io) = savepvn("top", 3);
1354 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1355 if (!topgv || !GvFORM(topgv)) {
1356 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1359 IoTOP_GV(io) = topgv;
1361 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1362 I32 lines = IoLINES_LEFT(io);
1363 const char *s = SvPVX_const(PL_formtarget);
1364 if (lines <= 0) /* Yow, header didn't even fit!!! */
1366 while (lines-- > 0) {
1367 s = strchr(s, '\n');
1373 const STRLEN save = SvCUR(PL_formtarget);
1374 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1375 do_print(PL_formtarget, ofp);
1376 SvCUR_set(PL_formtarget, save);
1377 sv_chop(PL_formtarget, s);
1378 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1381 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1382 do_print(PL_formfeed, ofp);
1383 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1385 PL_formtarget = PL_toptarget;
1386 IoFLAGS(io) |= IOf_DIDTOP;
1389 DIE(aTHX_ "bad top format reference");
1394 SV *sv = sv_newmortal();
1395 gv_efullname4(sv, fgv, Nullch, FALSE);
1396 name = SvPV_nolen(sv);
1399 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1402 DIE(aTHX_ "Undefined top format called");
1406 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1407 return doform(cv,gv,PL_op);
1411 POPBLOCK(cx,PL_curpm);
1417 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1419 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1420 else if (ckWARN(WARN_CLOSED))
1421 report_evil_fh(gv, io, PL_op->op_type);
1426 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1427 if (ckWARN(WARN_IO))
1428 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1430 if (!do_print(PL_formtarget, fp))
1433 FmLINES(PL_formtarget) = 0;
1434 SvCUR_set(PL_formtarget, 0);
1435 *SvEND(PL_formtarget) = '\0';
1436 if (IoFLAGS(io) & IOf_FLUSH)
1437 (void)PerlIO_flush(fp);
1442 PL_formtarget = PL_bodytarget;
1444 return cx->blk_sub.retop;
1449 dVAR; dSP; dMARK; dORIGMARK;
1456 if (PL_op->op_flags & OPf_STACKED)
1461 if (gv && (io = GvIO(gv))
1462 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1464 if (MARK == ORIGMARK) {
1467 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1471 *MARK = SvTIED_obj((SV*)io, mg);
1474 call_method("PRINTF", G_SCALAR);
1477 MARK = ORIGMARK + 1;
1484 if (!(io = GvIO(gv))) {
1485 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1486 report_evil_fh(gv, io, PL_op->op_type);
1487 SETERRNO(EBADF,RMS_IFI);
1490 else if (!(fp = IoOFP(io))) {
1491 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1493 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1494 else if (ckWARN(WARN_CLOSED))
1495 report_evil_fh(gv, io, PL_op->op_type);
1497 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1501 do_sprintf(sv, SP - MARK, MARK + 1);
1502 if (!do_print(sv, fp))
1505 if (IoFLAGS(io) & IOf_FLUSH)
1506 if (PerlIO_flush(fp) == EOF)
1517 PUSHs(&PL_sv_undef);
1538 /* Need TIEHANDLE method ? */
1540 tmps = SvPV(sv, len);
1541 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1542 IoLINES(GvIOp(gv)) = 0;
1546 PUSHs(&PL_sv_undef);
1553 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1560 Sock_size_t bufsize;
1569 bool charstart = FALSE;
1570 STRLEN charskip = 0;
1574 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1575 && gv && (io = GvIO(gv))
1576 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1581 *MARK = SvTIED_obj((SV*)io, mg);
1583 call_method("READ", G_SCALAR);
1596 sv_setpvn(bufsv, "", 0);
1597 length = SvIVx(*++MARK);
1600 offset = SvIVx(*++MARK);
1604 if (!io || !IoIFP(io)) {
1605 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1606 report_evil_fh(gv, io, PL_op->op_type);
1607 SETERRNO(EBADF,RMS_IFI);
1610 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1611 buffer = SvPVutf8_force(bufsv, blen);
1612 /* UTF-8 may not have been set if they are all low bytes */
1617 buffer = SvPV_force(bufsv, blen);
1618 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1621 DIE(aTHX_ "Negative length");
1629 if (PL_op->op_type == OP_RECV) {
1630 char namebuf[MAXPATHLEN];
1631 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1632 bufsize = sizeof (struct sockaddr_in);
1634 bufsize = sizeof namebuf;
1636 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1640 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1641 /* 'offset' means 'flags' here */
1642 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1643 (struct sockaddr *)namebuf, &bufsize);
1647 /* Bogus return without padding */
1648 bufsize = sizeof (struct sockaddr_in);
1650 SvCUR_set(bufsv, count);
1651 *SvEND(bufsv) = '\0';
1652 (void)SvPOK_only(bufsv);
1656 /* This should not be marked tainted if the fp is marked clean */
1657 if (!(IoFLAGS(io) & IOf_UNTAINT))
1658 SvTAINTED_on(bufsv);
1660 sv_setpvn(TARG, namebuf, bufsize);
1665 if (PL_op->op_type == OP_RECV)
1666 DIE(aTHX_ PL_no_sock_func, "recv");
1668 if (DO_UTF8(bufsv)) {
1669 /* offset adjust in characters not bytes */
1670 blen = sv_len_utf8(bufsv);
1673 if (-offset > (int)blen)
1674 DIE(aTHX_ "Offset outside string");
1677 if (DO_UTF8(bufsv)) {
1678 /* convert offset-as-chars to offset-as-bytes */
1679 if (offset >= (int)blen)
1680 offset += SvCUR(bufsv) - blen;
1682 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1685 bufsize = SvCUR(bufsv);
1686 /* Allocating length + offset + 1 isn't perfect in the case of reading
1687 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1689 (should be 2 * length + offset + 1, or possibly something longer if
1690 PL_encoding is true) */
1691 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1692 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1693 Zero(buffer+bufsize, offset-bufsize, char);
1695 buffer = buffer + offset;
1697 read_target = bufsv;
1699 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1700 concatenate it to the current buffer. */
1702 /* Truncate the existing buffer to the start of where we will be
1704 SvCUR_set(bufsv, offset);
1706 read_target = sv_newmortal();
1707 (void)SvUPGRADE(read_target, SVt_PV);
1708 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1711 if (PL_op->op_type == OP_SYSREAD) {
1712 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1713 if (IoTYPE(io) == IoTYPE_SOCKET) {
1714 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1720 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1725 #ifdef HAS_SOCKET__bad_code_maybe
1726 if (IoTYPE(io) == IoTYPE_SOCKET) {
1727 char namebuf[MAXPATHLEN];
1728 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1729 bufsize = sizeof (struct sockaddr_in);
1731 bufsize = sizeof namebuf;
1733 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1734 (struct sockaddr *)namebuf, &bufsize);
1739 count = PerlIO_read(IoIFP(io), buffer, length);
1740 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1741 if (count == 0 && PerlIO_error(IoIFP(io)))
1745 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1746 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1749 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1750 *SvEND(read_target) = '\0';
1751 (void)SvPOK_only(read_target);
1752 if (fp_utf8 && !IN_BYTES) {
1753 /* Look at utf8 we got back and count the characters */
1754 char *bend = buffer + count;
1755 while (buffer < bend) {
1757 skip = UTF8SKIP(buffer);
1760 if (buffer - charskip + skip > bend) {
1761 /* partial character - try for rest of it */
1762 length = skip - (bend-buffer);
1763 offset = bend - SvPVX(bufsv);
1775 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1776 provided amount read (count) was what was requested (length)
1778 if (got < wanted && count == length) {
1779 length = wanted - got;
1780 offset = bend - SvPVX(bufsv);
1783 /* return value is character count */
1787 else if (buffer_utf8) {
1788 /* Let svcatsv upgrade the bytes we read in to utf8.
1789 The buffer is a mortal so will be freed soon. */
1790 sv_catsv_nomg(bufsv, read_target);
1793 /* This should not be marked tainted if the fp is marked clean */
1794 if (!(IoFLAGS(io) & IOf_UNTAINT))
1795 SvTAINTED_on(bufsv);
1808 int items = (SP - PL_stack_base) - TOPMARK;
1812 sv = sv_2mortal(newSViv(sv_len(*SP)));
1821 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1832 if (PL_op->op_type == OP_SYSWRITE
1833 && gv && (io = GvIO(gv))
1834 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1839 *MARK = SvTIED_obj((SV*)io, mg);
1841 call_method("WRITE", G_SCALAR);
1852 #if Size_t_size > IVSIZE
1853 length = (Size_t)SvNVx(*++MARK);
1855 length = (Size_t)SvIVx(*++MARK);
1857 if ((SSize_t)length < 0)
1858 DIE(aTHX_ "Negative length");
1861 if (!io || !IoIFP(io)) {
1863 if (ckWARN(WARN_CLOSED))
1864 report_evil_fh(gv, io, PL_op->op_type);
1865 SETERRNO(EBADF,RMS_IFI);
1869 if (PerlIO_isutf8(IoIFP(io))) {
1870 if (!SvUTF8(bufsv)) {
1871 bufsv = sv_2mortal(newSVsv(bufsv));
1872 buffer = sv_2pvutf8(bufsv, &blen);
1874 buffer = SvPV(bufsv, blen);
1877 if (DO_UTF8(bufsv)) {
1878 /* Not modifying source SV, so making a temporary copy. */
1879 bufsv = sv_2mortal(newSVsv(bufsv));
1880 sv_utf8_downgrade(bufsv, FALSE);
1882 buffer = SvPV(bufsv, blen);
1885 if (PL_op->op_type == OP_SYSWRITE) {
1887 if (DO_UTF8(bufsv)) {
1888 /* length and offset are in chars */
1889 blen = sv_len_utf8(bufsv);
1892 offset = SvIVx(*++MARK);
1894 if (-offset > (IV)blen)
1895 DIE(aTHX_ "Offset outside string");
1897 } else if (offset >= (IV)blen && blen > 0)
1898 DIE(aTHX_ "Offset outside string");
1901 if (length > blen - offset)
1902 length = blen - offset;
1903 if (DO_UTF8(bufsv)) {
1904 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1905 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1908 buffer = buffer+offset;
1910 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1911 if (IoTYPE(io) == IoTYPE_SOCKET) {
1912 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1918 /* See the note at doio.c:do_print about filesize limits. --jhi */
1919 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1924 else if (SP > MARK) {
1927 sockbuf = SvPVx(*++MARK, mlen);
1928 /* length is really flags */
1929 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1930 length, (struct sockaddr *)sockbuf, mlen);
1933 /* length is really flags */
1934 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1937 DIE(aTHX_ PL_no_sock_func, "send");
1943 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1944 #if Size_t_size > IVSIZE
1958 return pp_sysread();
1969 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1971 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1973 if (io && !IoIFP(io)) {
1974 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1976 IoFLAGS(io) &= ~IOf_START;
1977 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1978 sv_setpvn(GvSV(gv), "-", 1);
1979 SvSETMAGIC(GvSV(gv));
1981 else if (!nextargv(gv))
1986 gv = PL_last_in_gv; /* eof */
1989 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1991 if (gv && (io = GvIO(gv))
1992 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1995 XPUSHs(SvTIED_obj((SV*)io, mg));
1998 call_method("EOF", G_SCALAR);
2004 PUSHs(boolSV(!gv || do_eof(gv)));
2018 gv = PL_last_in_gv = (GV*)POPs;
2020 if (gv && (io = GvIO(gv))
2021 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2024 XPUSHs(SvTIED_obj((SV*)io, mg));
2027 call_method("TELL", G_SCALAR);
2033 #if LSEEKSIZE > IVSIZE
2034 PUSHn( do_tell(gv) );
2036 PUSHi( do_tell(gv) );
2043 return pp_sysseek();
2052 #if LSEEKSIZE > IVSIZE
2053 Off_t offset = (Off_t)SvNVx(POPs);
2055 Off_t offset = (Off_t)SvIVx(POPs);
2059 gv = PL_last_in_gv = (GV*)POPs;
2061 if (gv && (io = GvIO(gv))
2062 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2065 XPUSHs(SvTIED_obj((SV*)io, mg));
2066 #if LSEEKSIZE > IVSIZE
2067 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2069 XPUSHs(sv_2mortal(newSViv(offset)));
2071 XPUSHs(sv_2mortal(newSViv(whence)));
2074 call_method("SEEK", G_SCALAR);
2080 if (PL_op->op_type == OP_SEEK)
2081 PUSHs(boolSV(do_seek(gv, offset, whence)));
2083 Off_t sought = do_sysseek(gv, offset, whence);
2085 PUSHs(&PL_sv_undef);
2088 #if LSEEKSIZE > IVSIZE
2093 : newSVpvn(zero_but_true, ZBTLEN);
2094 PUSHs(sv_2mortal(sv));
2103 /* There seems to be no consensus on the length type of truncate()
2104 * and ftruncate(), both off_t and size_t have supporters. In
2105 * general one would think that when using large files, off_t is
2106 * at least as wide as size_t, so using an off_t should be okay. */
2107 /* XXX Configure probe for the length type of *truncate() needed XXX */
2110 #if Off_t_size > IVSIZE
2115 /* Checking for length < 0 is problematic as the type might or
2116 * might not be signed: if it is not, clever compilers will moan. */
2117 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2124 if (PL_op->op_flags & OPf_SPECIAL) {
2125 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2134 TAINT_PROPER("truncate");
2135 if (!(fp = IoIFP(io))) {
2141 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2143 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2154 if (SvTYPE(sv) == SVt_PVGV) {
2155 tmpgv = (GV*)sv; /* *main::FRED for example */
2156 goto do_ftruncate_gv;
2158 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2159 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2160 goto do_ftruncate_gv;
2162 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2163 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2164 goto do_ftruncate_io;
2167 name = SvPV(sv, n_a);
2168 TAINT_PROPER("truncate");
2170 if (truncate(name, len) < 0)
2176 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2179 if (my_chsize(tmpfd, len) < 0)
2181 PerlLIO_close(tmpfd);
2190 SETERRNO(EBADF,RMS_IFI);
2204 unsigned int func = POPu;
2205 const int optype = PL_op->op_type;
2209 IO *io = gv ? GvIOn(gv) : 0;
2211 if (!io || !argsv || !IoIFP(io)) {
2212 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2213 report_evil_fh(gv, io, PL_op->op_type);
2214 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2218 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2221 s = SvPV_force(argsv, len);
2222 need = IOCPARM_LEN(func);
2224 s = Sv_Grow(argsv, need + 1);
2225 SvCUR_set(argsv, need);
2228 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2231 retval = SvIV(argsv);
2232 s = INT2PTR(char*,retval); /* ouch */
2235 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2237 if (optype == OP_IOCTL)
2239 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2241 DIE(aTHX_ "ioctl is not implemented");
2245 DIE(aTHX_ "fcntl is not implemented");
2247 #if defined(OS2) && defined(__EMX__)
2248 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2250 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2254 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2256 if (s[SvCUR(argsv)] != 17)
2257 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2259 s[SvCUR(argsv)] = 0; /* put our null back */
2260 SvSETMAGIC(argsv); /* Assume it has changed */
2269 PUSHp(zero_but_true, ZBTLEN);
2290 if (gv && (io = GvIO(gv)))
2297 (void)PerlIO_flush(fp);
2298 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2301 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2302 report_evil_fh(gv, io, PL_op->op_type);
2304 SETERRNO(EBADF,RMS_IFI);
2309 DIE(aTHX_ PL_no_func, "flock()");
2321 int protocol = POPi;
2327 io = gv ? GvIOn(gv) : NULL;
2330 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2331 report_evil_fh(gv, io, PL_op->op_type);
2333 do_close(gv, FALSE);
2334 SETERRNO(EBADF,LIB_INVARG);
2339 do_close(gv, FALSE);
2341 TAINT_PROPER("socket");
2342 fd = PerlSock_socket(domain, type, protocol);
2345 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2346 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2347 IoTYPE(io) = IoTYPE_SOCKET;
2348 if (!IoIFP(io) || !IoOFP(io)) {
2349 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2350 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2351 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2354 #if defined(HAS_FCNTL) && defined(F_SETFD)
2355 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2359 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2364 DIE(aTHX_ PL_no_sock_func, "socket");
2370 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2376 int protocol = POPi;
2383 io1 = gv1 ? GvIOn(gv1) : NULL;
2384 io2 = gv2 ? GvIOn(gv2) : NULL;
2385 if (!gv1 || !gv2 || !io1 || !io2) {
2386 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2388 report_evil_fh(gv1, io1, PL_op->op_type);
2390 report_evil_fh(gv1, io2, PL_op->op_type);
2393 do_close(gv1, FALSE);
2395 do_close(gv2, FALSE);
2400 do_close(gv1, FALSE);
2402 do_close(gv2, FALSE);
2404 TAINT_PROPER("socketpair");
2405 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2407 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2408 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2409 IoTYPE(io1) = IoTYPE_SOCKET;
2410 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2411 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2412 IoTYPE(io2) = IoTYPE_SOCKET;
2413 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2414 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2415 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2416 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2417 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2418 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2419 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2422 #if defined(HAS_FCNTL) && defined(F_SETFD)
2423 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2424 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2429 DIE(aTHX_ PL_no_sock_func, "socketpair");
2437 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2438 extern void GETPRIVMODE();
2439 extern void GETUSERMODE();
2444 register IO *io = GvIOn(gv);
2448 int mpeprivmode = 0;
2451 if (!io || !IoIFP(io))
2454 addr = SvPV(addrsv, len);
2455 TAINT_PROPER("bind");
2456 #ifdef MPE /* Deal with MPE bind() peculiarities */
2457 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2458 /* The address *MUST* stupidly be zero. */
2459 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2460 /* PRIV mode is required to bind() to ports < 1024. */
2461 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2462 ((struct sockaddr_in *)addr)->sin_port > 0) {
2463 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2468 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2469 (struct sockaddr *)addr, len) >= 0)
2472 #ifdef MPE /* Switch back to USER mode */
2483 if (ckWARN(WARN_CLOSED))
2484 report_evil_fh(gv, io, PL_op->op_type);
2485 SETERRNO(EBADF,SS_IVCHAN);
2488 DIE(aTHX_ PL_no_sock_func, "bind");
2499 register IO *io = GvIOn(gv);
2502 if (!io || !IoIFP(io))
2505 addr = SvPV(addrsv, len);
2506 TAINT_PROPER("connect");
2507 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2513 if (ckWARN(WARN_CLOSED))
2514 report_evil_fh(gv, io, PL_op->op_type);
2515 SETERRNO(EBADF,SS_IVCHAN);
2518 DIE(aTHX_ PL_no_sock_func, "connect");
2528 register IO *io = gv ? GvIOn(gv) : NULL;
2530 if (!gv || !io || !IoIFP(io))
2533 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2539 if (ckWARN(WARN_CLOSED))
2540 report_evil_fh(gv, io, PL_op->op_type);
2541 SETERRNO(EBADF,SS_IVCHAN);
2544 DIE(aTHX_ PL_no_sock_func, "listen");
2556 char namebuf[MAXPATHLEN];
2557 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2558 Sock_size_t len = sizeof (struct sockaddr_in);
2560 Sock_size_t len = sizeof namebuf;
2573 if (!gstio || !IoIFP(gstio))
2577 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2581 do_close(ngv, FALSE);
2582 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2583 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2584 IoTYPE(nstio) = IoTYPE_SOCKET;
2585 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2586 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2587 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2588 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2591 #if defined(HAS_FCNTL) && defined(F_SETFD)
2592 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2596 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2597 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2599 #ifdef __SCO_VERSION__
2600 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2603 PUSHp(namebuf, len);
2607 if (ckWARN(WARN_CLOSED))
2608 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2609 SETERRNO(EBADF,SS_IVCHAN);
2615 DIE(aTHX_ PL_no_sock_func, "accept");
2625 register IO *io = GvIOn(gv);
2627 if (!io || !IoIFP(io))
2630 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2634 if (ckWARN(WARN_CLOSED))
2635 report_evil_fh(gv, io, PL_op->op_type);
2636 SETERRNO(EBADF,SS_IVCHAN);
2639 DIE(aTHX_ PL_no_sock_func, "shutdown");
2646 return pp_ssockopt();
2648 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2656 int optype = PL_op->op_type;
2659 unsigned int optname;
2665 if (optype == OP_GSOCKOPT)
2666 sv = sv_2mortal(NEWSV(22, 257));
2669 optname = (unsigned int) POPi;
2670 lvl = (unsigned int) POPi;
2674 if (!io || !IoIFP(io))
2677 fd = PerlIO_fileno(IoIFP(io));
2681 (void)SvPOK_only(sv);
2685 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2700 aint = (int)SvIV(sv);
2704 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2713 if (ckWARN(WARN_CLOSED))
2714 report_evil_fh(gv, io, optype);
2715 SETERRNO(EBADF,SS_IVCHAN);
2720 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2727 return pp_getpeername();
2729 DIE(aTHX_ PL_no_sock_func, "getsockname");
2737 int optype = PL_op->op_type;
2741 register IO *io = GvIOn(gv);
2744 if (!io || !IoIFP(io))
2747 sv = sv_2mortal(NEWSV(22, 257));
2748 (void)SvPOK_only(sv);
2752 fd = PerlIO_fileno(IoIFP(io));
2754 case OP_GETSOCKNAME:
2755 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2758 case OP_GETPEERNAME:
2759 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2761 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2763 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";
2764 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2765 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2766 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2767 sizeof(u_short) + sizeof(struct in_addr))) {
2774 #ifdef BOGUS_GETNAME_RETURN
2775 /* Interactive Unix, getpeername() and getsockname()
2776 does not return valid namelen */
2777 if (len == BOGUS_GETNAME_RETURN)
2778 len = sizeof(struct sockaddr);
2786 if (ckWARN(WARN_CLOSED))
2787 report_evil_fh(gv, io, optype);
2788 SETERRNO(EBADF,SS_IVCHAN);
2793 DIE(aTHX_ PL_no_sock_func, "getpeername");
2812 if (PL_op->op_flags & OPf_REF) {
2814 if (PL_op->op_type == OP_LSTAT) {
2815 if (gv != PL_defgv) {
2816 if (ckWARN(WARN_IO))
2817 Perl_warner(aTHX_ packWARN(WARN_IO),
2818 "lstat() on filehandle %s", GvENAME(gv));
2819 } else if (PL_laststype != OP_LSTAT)
2820 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2824 if (gv != PL_defgv) {
2825 PL_laststype = OP_STAT;
2827 sv_setpvn(PL_statname, "", 0);
2828 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2829 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2831 if (PL_laststatval < 0) {
2832 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2833 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2839 if (SvTYPE(sv) == SVt_PVGV) {
2843 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2845 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2846 Perl_warner(aTHX_ packWARN(WARN_IO),
2847 "lstat() on filehandle %s", GvENAME(gv));
2850 sv_setpv(PL_statname, SvPV(sv,n_a));
2852 PL_laststype = PL_op->op_type;
2853 if (PL_op->op_type == OP_LSTAT)
2854 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2856 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2857 if (PL_laststatval < 0) {
2858 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2859 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2865 if (gimme != G_ARRAY) {
2866 if (gimme != G_VOID)
2867 XPUSHs(boolSV(max));
2873 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2874 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2875 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2876 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2877 #if Uid_t_size > IVSIZE
2878 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2880 # if Uid_t_sign <= 0
2881 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2883 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2886 #if Gid_t_size > IVSIZE
2887 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2889 # if Gid_t_sign <= 0
2890 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2892 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2895 #ifdef USE_STAT_RDEV
2896 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2898 PUSHs(sv_2mortal(newSVpvn("", 0)));
2900 #if Off_t_size > IVSIZE
2901 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2903 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2906 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2907 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2908 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2910 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2911 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2912 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2914 #ifdef USE_STAT_BLOCKS
2915 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2916 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2918 PUSHs(sv_2mortal(newSVpvn("", 0)));
2919 PUSHs(sv_2mortal(newSVpvn("", 0)));
2925 /* This macro is used by the stacked filetest operators :
2926 * if the previous filetest failed, short-circuit and pass its value.
2927 * Else, discard it from the stack and continue. --rgs
2929 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2930 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2931 else { (void)POPs; PUTBACK; } \
2938 STACKED_FTEST_CHECK;
2939 #if defined(HAS_ACCESS) && defined(R_OK)
2940 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2942 result = access(POPpx, R_OK);
2957 if (cando(S_IRUSR, 0, &PL_statcache))
2966 STACKED_FTEST_CHECK;
2967 #if defined(HAS_ACCESS) && defined(W_OK)
2968 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2970 result = access(POPpx, W_OK);
2985 if (cando(S_IWUSR, 0, &PL_statcache))
2994 STACKED_FTEST_CHECK;
2995 #if defined(HAS_ACCESS) && defined(X_OK)
2996 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2998 result = access(POPpx, X_OK);
3013 if (cando(S_IXUSR, 0, &PL_statcache))
3022 STACKED_FTEST_CHECK;
3023 #ifdef PERL_EFF_ACCESS_R_OK
3024 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3026 result = PERL_EFF_ACCESS_R_OK(POPpx);
3041 if (cando(S_IRUSR, 1, &PL_statcache))
3050 STACKED_FTEST_CHECK;
3051 #ifdef PERL_EFF_ACCESS_W_OK
3052 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3054 result = PERL_EFF_ACCESS_W_OK(POPpx);
3069 if (cando(S_IWUSR, 1, &PL_statcache))
3078 STACKED_FTEST_CHECK;
3079 #ifdef PERL_EFF_ACCESS_X_OK
3080 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3082 result = PERL_EFF_ACCESS_X_OK(POPpx);
3097 if (cando(S_IXUSR, 1, &PL_statcache))
3106 STACKED_FTEST_CHECK;
3116 return pp_ftrowned();
3123 STACKED_FTEST_CHECK;
3128 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3138 STACKED_FTEST_CHECK;
3143 if (PL_statcache.st_size == 0)
3152 STACKED_FTEST_CHECK;
3157 #if Off_t_size > IVSIZE
3158 PUSHn(PL_statcache.st_size);
3160 PUSHi(PL_statcache.st_size);
3169 STACKED_FTEST_CHECK;
3174 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3182 STACKED_FTEST_CHECK;
3187 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3195 STACKED_FTEST_CHECK;
3200 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3208 STACKED_FTEST_CHECK;
3213 if (S_ISSOCK(PL_statcache.st_mode))
3222 STACKED_FTEST_CHECK;
3227 if (S_ISCHR(PL_statcache.st_mode))
3236 STACKED_FTEST_CHECK;
3241 if (S_ISBLK(PL_statcache.st_mode))
3250 STACKED_FTEST_CHECK;
3255 if (S_ISREG(PL_statcache.st_mode))
3264 STACKED_FTEST_CHECK;
3269 if (S_ISDIR(PL_statcache.st_mode))
3278 STACKED_FTEST_CHECK;
3283 if (S_ISFIFO(PL_statcache.st_mode))
3290 I32 result = my_lstat();
3294 if (S_ISLNK(PL_statcache.st_mode))
3304 STACKED_FTEST_CHECK;
3309 if (PL_statcache.st_mode & S_ISUID)
3320 STACKED_FTEST_CHECK;
3325 if (PL_statcache.st_mode & S_ISGID)
3336 STACKED_FTEST_CHECK;
3341 if (PL_statcache.st_mode & S_ISVTX)
3354 STACKED_FTEST_CHECK;
3356 if (PL_op->op_flags & OPf_REF)
3358 else if (isGV(TOPs))
3360 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3361 gv = (GV*)SvRV(POPs);
3363 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3365 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3366 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3367 else if (tmpsv && SvOK(tmpsv)) {
3369 char *tmps = SvPV(tmpsv, n_a);
3377 if (PerlLIO_isatty(fd))
3382 #if defined(atarist) /* this will work with atariST. Configure will
3383 make guesses for other systems. */
3384 # define FILE_base(f) ((f)->_base)
3385 # define FILE_ptr(f) ((f)->_ptr)
3386 # define FILE_cnt(f) ((f)->_cnt)
3387 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3397 register STDCHAR *s;
3404 STACKED_FTEST_CHECK;
3406 if (PL_op->op_flags & OPf_REF)
3408 else if (isGV(TOPs))
3410 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3411 gv = (GV*)SvRV(POPs);
3417 if (gv == PL_defgv) {
3419 io = GvIO(PL_statgv);
3422 goto really_filename;
3427 PL_laststatval = -1;
3428 sv_setpvn(PL_statname, "", 0);
3429 io = GvIO(PL_statgv);
3431 if (io && IoIFP(io)) {
3432 if (! PerlIO_has_base(IoIFP(io)))
3433 DIE(aTHX_ "-T and -B not implemented on filehandles");
3434 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3435 if (PL_laststatval < 0)
3437 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3438 if (PL_op->op_type == OP_FTTEXT)
3443 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3444 i = PerlIO_getc(IoIFP(io));
3446 (void)PerlIO_ungetc(IoIFP(io),i);
3448 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3450 len = PerlIO_get_bufsiz(IoIFP(io));
3451 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3452 /* sfio can have large buffers - limit to 512 */
3457 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3459 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3461 SETERRNO(EBADF,RMS_IFI);
3469 PL_laststype = OP_STAT;
3470 sv_setpv(PL_statname, SvPV(sv, n_a));
3471 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3472 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
3473 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3476 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3477 if (PL_laststatval < 0) {
3478 (void)PerlIO_close(fp);
3481 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3482 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3483 (void)PerlIO_close(fp);
3485 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3486 RETPUSHNO; /* special case NFS directories */
3487 RETPUSHYES; /* null file is anything */
3492 /* now scan s to look for textiness */
3493 /* XXX ASCII dependent code */
3495 #if defined(DOSISH) || defined(USEMYBINMODE)
3496 /* ignore trailing ^Z on short files */
3497 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3501 for (i = 0; i < len; i++, s++) {
3502 if (!*s) { /* null never allowed in text */
3507 else if (!(isPRINT(*s) || isSPACE(*s)))
3510 else if (*s & 128) {
3512 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3515 /* utf8 characters don't count as odd */
3516 if (UTF8_IS_START(*s)) {
3517 int ulen = UTF8SKIP(s);
3518 if (ulen < len - i) {
3520 for (j = 1; j < ulen; j++) {
3521 if (!UTF8_IS_CONTINUATION(s[j]))
3524 --ulen; /* loop does extra increment */
3534 *s != '\n' && *s != '\r' && *s != '\b' &&
3535 *s != '\t' && *s != '\f' && *s != 27)
3540 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3565 if( !tmps || !*tmps ) {
3566 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3567 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3569 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3574 deprecate("chdir('') or chdir(undef) as chdir()");
3575 tmps = SvPV(*svp, n_a);
3579 TAINT_PROPER("chdir");
3584 TAINT_PROPER("chdir");
3585 PUSHi( PerlDir_chdir(tmps) >= 0 );
3587 /* Clear the DEFAULT element of ENV so we'll get the new value
3589 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3597 dSP; dMARK; dTARGET;
3598 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3604 DIE(aTHX_ PL_no_func, "chown");
3614 TAINT_PROPER("chroot");
3615 PUSHi( chroot(tmps) >= 0 );
3618 DIE(aTHX_ PL_no_func, "chroot");
3624 dSP; dMARK; dTARGET;
3626 value = (I32)apply(PL_op->op_type, MARK, SP);
3634 dSP; dMARK; dTARGET;
3636 value = (I32)apply(PL_op->op_type, MARK, SP);
3644 dSP; dMARK; dTARGET;
3646 value = (I32)apply(PL_op->op_type, MARK, SP);
3658 char *tmps2 = POPpx;
3659 char *tmps = SvPV(TOPs, n_a);
3660 TAINT_PROPER("rename");
3662 anum = PerlLIO_rename(tmps, tmps2);
3664 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3665 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3668 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3669 (void)UNLINK(tmps2);
3670 if (!(anum = link(tmps, tmps2)))
3671 anum = UNLINK(tmps);
3684 char *tmps2 = POPpx;
3685 char *tmps = SvPV(TOPs, n_a);
3686 TAINT_PROPER("link");
3687 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3690 DIE(aTHX_ PL_no_func, "link");
3699 char *tmps2 = POPpx;
3700 char *tmps = SvPV(TOPs, n_a);
3701 TAINT_PROPER("symlink");
3702 SETi( symlink(tmps, tmps2) >= 0 );
3705 DIE(aTHX_ PL_no_func, "symlink");
3715 char buf[MAXPATHLEN];
3719 #ifndef INCOMPLETE_TAINTS
3723 len = readlink(tmps, buf, sizeof(buf) - 1);
3731 RETSETUNDEF; /* just pretend it's a normal file */
3735 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3737 S_dooneliner(pTHX_ char *cmd, char *filename)
3739 char *save_filename = filename;
3745 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3746 strcpy(cmdline, cmd);
3747 strcat(cmdline, " ");
3748 for (s = cmdline + strlen(cmdline); *filename; ) {
3753 myfp = PerlProc_popen(cmdline, "r");
3757 SV *tmpsv = sv_newmortal();
3758 /* Need to save/restore 'PL_rs' ?? */
3759 s = sv_gets(tmpsv, myfp, 0);
3760 (void)PerlProc_pclose(myfp);
3764 #ifdef HAS_SYS_ERRLIST
3769 /* you don't see this */
3771 #ifdef HAS_SYS_ERRLIST
3779 if (instr(s, errmsg)) {
3786 #define EACCES EPERM
3788 if (instr(s, "cannot make"))
3789 SETERRNO(EEXIST,RMS_FEX);
3790 else if (instr(s, "existing file"))
3791 SETERRNO(EEXIST,RMS_FEX);
3792 else if (instr(s, "ile exists"))
3793 SETERRNO(EEXIST,RMS_FEX);
3794 else if (instr(s, "non-exist"))
3795 SETERRNO(ENOENT,RMS_FNF);
3796 else if (instr(s, "does not exist"))
3797 SETERRNO(ENOENT,RMS_FNF);
3798 else if (instr(s, "not empty"))
3799 SETERRNO(EBUSY,SS_DEVOFFLINE);
3800 else if (instr(s, "cannot access"))
3801 SETERRNO(EACCES,RMS_PRV);
3803 SETERRNO(EPERM,RMS_PRV);
3806 else { /* some mkdirs return no failure indication */
3807 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3808 if (PL_op->op_type == OP_RMDIR)
3813 SETERRNO(EACCES,RMS_PRV); /* a guess */
3822 /* This macro removes trailing slashes from a directory name.
3823 * Different operating and file systems take differently to
3824 * trailing slashes. According to POSIX 1003.1 1996 Edition
3825 * any number of trailing slashes should be allowed.
3826 * Thusly we snip them away so that even non-conforming
3827 * systems are happy.
3828 * We should probably do this "filtering" for all
3829 * the functions that expect (potentially) directory names:
3830 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3831 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3833 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3834 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3837 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3838 (tmps) = savepvn((tmps), (len)); \
3858 TRIMSLASHES(tmps,len,copy);
3860 TAINT_PROPER("mkdir");
3862 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3864 SETi( dooneliner("mkdir", tmps) );
3865 oldumask = PerlLIO_umask(0);
3866 PerlLIO_umask(oldumask);
3867 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3881 TRIMSLASHES(tmps,len,copy);
3882 TAINT_PROPER("rmdir");
3884 SETi( PerlDir_rmdir(tmps) >= 0 );
3886 SETi( dooneliner("rmdir", tmps) );
3893 /* Directory calls. */
3897 #if defined(Direntry_t) && defined(HAS_READDIR)
3900 char *dirname = POPpx;
3902 register IO *io = GvIOn(gv);
3908 PerlDir_close(IoDIRP(io));
3909 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3915 SETERRNO(EBADF,RMS_DIR);
3918 DIE(aTHX_ PL_no_dir_func, "opendir");
3924 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3925 DIE(aTHX_ PL_no_dir_func, "readdir");
3927 #if !defined(I_DIRENT) && !defined(VMS)
3928 Direntry_t *readdir (DIR *);
3933 const I32 gimme = GIMME;
3934 GV *gv = (GV *)POPs;
3935 register Direntry_t *dp;
3936 register IO *io = GvIOn(gv);
3938 if (!io || !IoDIRP(io))
3942 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3946 sv = newSVpvn(dp->d_name, dp->d_namlen);
3948 sv = newSVpv(dp->d_name, 0);
3950 #ifndef INCOMPLETE_TAINTS
3951 if (!(IoFLAGS(io) & IOf_UNTAINT))
3954 XPUSHs(sv_2mortal(sv));
3956 while (gimme == G_ARRAY);
3958 if (!dp && gimme != G_ARRAY)
3965 SETERRNO(EBADF,RMS_ISI);
3966 if (GIMME == G_ARRAY)
3975 #if defined(HAS_TELLDIR) || defined(telldir)
3977 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3978 /* XXX netbsd still seemed to.
3979 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3980 --JHI 1999-Feb-02 */
3981 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3982 long telldir (DIR *);
3985 register IO *io = GvIOn(gv);
3987 if (!io || !IoDIRP(io))
3990 PUSHi( PerlDir_tell(IoDIRP(io)) );
3994 SETERRNO(EBADF,RMS_ISI);
3997 DIE(aTHX_ PL_no_dir_func, "telldir");
4003 #if defined(HAS_SEEKDIR) || defined(seekdir)
4007 register IO *io = GvIOn(gv);
4009 if (!io || !IoDIRP(io))
4012 (void)PerlDir_seek(IoDIRP(io), along);
4017 SETERRNO(EBADF,RMS_ISI);
4020 DIE(aTHX_ PL_no_dir_func, "seekdir");
4026 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4029 register IO *io = GvIOn(gv);
4031 if (!io || !IoDIRP(io))
4034 (void)PerlDir_rewind(IoDIRP(io));
4038 SETERRNO(EBADF,RMS_ISI);
4041 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4047 #if defined(Direntry_t) && defined(HAS_READDIR)
4050 register IO *io = GvIOn(gv);
4052 if (!io || !IoDIRP(io))
4055 #ifdef VOID_CLOSEDIR
4056 PerlDir_close(IoDIRP(io));
4058 if (PerlDir_close(IoDIRP(io)) < 0) {
4059 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4068 SETERRNO(EBADF,RMS_IFI);
4071 DIE(aTHX_ PL_no_dir_func, "closedir");
4075 /* Process control. */
4085 PERL_FLUSHALL_FOR_CHILD;
4086 childpid = PerlProc_fork();
4091 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4092 SvREADONLY_off(GvSV(tmpgv));
4093 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4094 SvREADONLY_on(GvSV(tmpgv));
4096 #ifdef THREADS_HAVE_PIDS
4097 PL_ppid = (IV)getppid();
4099 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4104 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4109 PERL_FLUSHALL_FOR_CHILD;
4110 childpid = PerlProc_fork();
4116 DIE(aTHX_ PL_no_func, "fork");
4123 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4128 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4129 childpid = wait4pid(-1, &argflags, 0);
4131 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4136 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4137 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4138 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4140 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4145 DIE(aTHX_ PL_no_func, "wait");
4151 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4160 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4161 result = wait4pid(pid, &argflags, optype);
4163 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4168 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4169 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4170 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4172 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4177 DIE(aTHX_ PL_no_func, "waitpid");
4183 dSP; dMARK; dORIGMARK; dTARGET;
4190 while (++MARK <= SP) {
4191 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4196 TAINT_PROPER("system");
4198 PERL_FLUSHALL_FOR_CHILD;
4199 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4205 if (PerlProc_pipe(pp) >= 0)
4207 while ((childpid = PerlProc_fork()) == -1) {
4208 if (errno != EAGAIN) {
4213 PerlLIO_close(pp[0]);
4214 PerlLIO_close(pp[1]);
4221 Sigsave_t ihand,qhand; /* place to save signals during system() */
4225 PerlLIO_close(pp[1]);
4227 rsignal_save(SIGINT, SIG_IGN, &ihand);
4228 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4231 result = wait4pid(childpid, &status, 0);
4232 } while (result == -1 && errno == EINTR);
4234 (void)rsignal_restore(SIGINT, &ihand);
4235 (void)rsignal_restore(SIGQUIT, &qhand);
4237 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4238 do_execfree(); /* free any memory child malloced on fork */
4244 while (n < sizeof(int)) {
4245 n1 = PerlLIO_read(pp[0],
4246 (void*)(((char*)&errkid)+n),
4252 PerlLIO_close(pp[0]);
4253 if (n) { /* Error */
4254 if (n != sizeof(int))
4255 DIE(aTHX_ "panic: kid popen errno read");
4256 errno = errkid; /* Propagate errno from kid */
4257 STATUS_CURRENT = -1;
4260 PUSHi(STATUS_CURRENT);
4264 PerlLIO_close(pp[0]);
4265 #if defined(HAS_FCNTL) && defined(F_SETFD)
4266 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4269 if (PL_op->op_flags & OPf_STACKED) {
4270 SV *really = *++MARK;
4271 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4273 else if (SP - MARK != 1)
4274 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4276 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4280 #else /* ! FORK or VMS or OS/2 */
4283 if (PL_op->op_flags & OPf_STACKED) {
4284 SV *really = *++MARK;
4285 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4286 value = (I32)do_aspawn(really, MARK, SP);
4288 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4291 else if (SP - MARK != 1) {
4292 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4293 value = (I32)do_aspawn(Nullsv, MARK, SP);
4295 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4299 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4301 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4303 STATUS_NATIVE_SET(value);
4306 PUSHi(result ? value : STATUS_CURRENT);
4307 #endif /* !FORK or VMS */
4313 dSP; dMARK; dORIGMARK; dTARGET;
4319 while (++MARK <= SP) {
4320 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4325 TAINT_PROPER("exec");
4327 PERL_FLUSHALL_FOR_CHILD;
4328 if (PL_op->op_flags & OPf_STACKED) {
4329 SV *really = *++MARK;
4330 value = (I32)do_aexec(really, MARK, SP);
4332 else if (SP - MARK != 1)
4334 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4338 (void ) do_aspawn(Nullsv, MARK, SP);
4342 value = (I32)do_aexec(Nullsv, MARK, SP);
4347 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4350 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4353 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4366 dSP; dMARK; dTARGET;
4368 value = (I32)apply(PL_op->op_type, MARK, SP);
4373 DIE(aTHX_ PL_no_func, "kill");
4381 # ifdef THREADS_HAVE_PIDS
4383 IV cur_ppid = getppid();
4385 /* maybe the parent process has died. Refresh ppid cache */
4390 XPUSHi( getppid() );
4394 DIE(aTHX_ PL_no_func, "getppid");
4410 pgrp = (I32)BSD_GETPGRP(pid);
4412 if (pid != 0 && pid != PerlProc_getpid())
4413 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4419 DIE(aTHX_ PL_no_func, "getpgrp()");
4438 TAINT_PROPER("setpgrp");
4440 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4442 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4443 || (pid != 0 && pid != PerlProc_getpid()))
4445 DIE(aTHX_ "setpgrp can't take arguments");
4447 SETi( setpgrp() >= 0 );
4448 #endif /* USE_BSDPGRP */
4451 DIE(aTHX_ PL_no_func, "setpgrp()");
4457 #ifdef HAS_GETPRIORITY
4461 SETi( getpriority(which, who) );
4464 DIE(aTHX_ PL_no_func, "getpriority()");
4470 #ifdef HAS_SETPRIORITY
4475 TAINT_PROPER("setpriority");
4476 SETi( setpriority(which, who, niceval) >= 0 );
4479 DIE(aTHX_ PL_no_func, "setpriority()");
4489 XPUSHn( time(Null(Time_t*)) );
4491 XPUSHi( time(Null(Time_t*)) );
4502 (void)PerlProc_times(&PL_timesbuf);
4504 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4505 /* struct tms, though same data */
4509 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4510 if (GIMME == G_ARRAY) {
4511 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4512 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4513 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4519 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4521 if (GIMME == G_ARRAY) {
4522 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4523 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4524 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4528 DIE(aTHX_ "times not implemented");
4530 #endif /* HAS_TIMES */
4542 const struct tm *tmbuf;
4543 static const char * const dayname[] =
4544 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4545 static const char * const monname[] =
4546 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4547 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4553 when = (Time_t)SvNVx(POPs);
4555 when = (Time_t)SvIVx(POPs);
4558 if (PL_op->op_type == OP_LOCALTIME)
4559 tmbuf = localtime(&when);
4561 tmbuf = gmtime(&when);
4563 if (GIMME != G_ARRAY) {
4569 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4570 dayname[tmbuf->tm_wday],
4571 monname[tmbuf->tm_mon],
4576 tmbuf->tm_year + 1900);
4577 PUSHs(sv_2mortal(tsv));
4582 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4583 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4584 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4585 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4586 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4587 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4588 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4589 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4590 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4601 anum = alarm((unsigned int)anum);
4608 DIE(aTHX_ PL_no_func, "alarm");
4619 (void)time(&lasttime);
4624 PerlProc_sleep((unsigned int)duration);
4627 XPUSHi(when - lasttime);
4631 /* Shared memory. */
4645 return pp_shmwrite();
4650 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4651 dSP; dMARK; dTARGET;
4652 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4661 /* Message passing. */
4675 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4676 dSP; dMARK; dTARGET;
4677 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4688 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4689 dSP; dMARK; dTARGET;
4690 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4703 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4704 dSP; dMARK; dTARGET;
4705 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4712 DIE(aTHX_ "System V IPC is not implemented on this machine");
4718 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4719 dSP; dMARK; dTARGET;
4720 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4728 PUSHp(zero_but_true, ZBTLEN);
4738 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4739 dSP; dMARK; dTARGET;
4740 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4749 /* Get system info. */
4753 #ifdef HAS_GETHOSTBYNAME
4754 return pp_ghostent();
4756 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4762 #ifdef HAS_GETHOSTBYADDR
4763 return pp_ghostent();
4765 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4771 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4773 I32 which = PL_op->op_type;
4774 register char **elem;
4776 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4777 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4778 struct hostent *gethostbyname(Netdb_name_t);
4779 struct hostent *gethostent(void);
4781 struct hostent *hent;
4786 if (which == OP_GHBYNAME) {
4787 #ifdef HAS_GETHOSTBYNAME
4788 char* name = POPpbytex;
4789 hent = PerlSock_gethostbyname(name);
4791 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4794 else if (which == OP_GHBYADDR) {
4795 #ifdef HAS_GETHOSTBYADDR
4796 int addrtype = POPi;
4799 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4801 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4803 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4807 #ifdef HAS_GETHOSTENT
4808 hent = PerlSock_gethostent();
4810 DIE(aTHX_ PL_no_sock_func, "gethostent");
4813 #ifdef HOST_NOT_FOUND
4815 #ifdef USE_REENTRANT_API
4816 # ifdef USE_GETHOSTENT_ERRNO
4817 h_errno = PL_reentrant_buffer->_gethostent_errno;
4820 STATUS_NATIVE_SET(h_errno);
4824 if (GIMME != G_ARRAY) {
4825 PUSHs(sv = sv_newmortal());
4827 if (which == OP_GHBYNAME) {
4829 sv_setpvn(sv, hent->h_addr, hent->h_length);
4832 sv_setpv(sv, (char*)hent->h_name);
4838 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4839 sv_setpv(sv, (char*)hent->h_name);
4840 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4841 for (elem = hent->h_aliases; elem && *elem; elem++) {
4842 sv_catpv(sv, *elem);
4844 sv_catpvn(sv, " ", 1);
4846 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4847 sv_setiv(sv, (IV)hent->h_addrtype);
4848 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4849 len = hent->h_length;
4850 sv_setiv(sv, (IV)len);
4852 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4853 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4854 sv_setpvn(sv, *elem, len);
4857 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4859 sv_setpvn(sv, hent->h_addr, len);
4864 DIE(aTHX_ PL_no_sock_func, "gethostent");
4870 #ifdef HAS_GETNETBYNAME
4871 return pp_gnetent();
4873 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4879 #ifdef HAS_GETNETBYADDR
4880 return pp_gnetent();
4882 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4888 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4890 I32 which = PL_op->op_type;
4891 register char **elem;
4893 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4894 struct netent *getnetbyaddr(Netdb_net_t, int);
4895 struct netent *getnetbyname(Netdb_name_t);
4896 struct netent *getnetent(void);
4898 struct netent *nent;
4901 if (which == OP_GNBYNAME){
4902 #ifdef HAS_GETNETBYNAME
4903 char *name = POPpbytex;
4904 nent = PerlSock_getnetbyname(name);
4906 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4909 else if (which == OP_GNBYADDR) {
4910 #ifdef HAS_GETNETBYADDR
4911 int addrtype = POPi;
4912 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4913 nent = PerlSock_getnetbyaddr(addr, addrtype);
4915 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4919 #ifdef HAS_GETNETENT
4920 nent = PerlSock_getnetent();
4922 DIE(aTHX_ PL_no_sock_func, "getnetent");
4925 #ifdef HOST_NOT_FOUND
4927 #ifdef USE_REENTRANT_API
4928 # ifdef USE_GETNETENT_ERRNO
4929 h_errno = PL_reentrant_buffer->_getnetent_errno;
4932 STATUS_NATIVE_SET(h_errno);
4937 if (GIMME != G_ARRAY) {
4938 PUSHs(sv = sv_newmortal());
4940 if (which == OP_GNBYNAME)
4941 sv_setiv(sv, (IV)nent->n_net);
4943 sv_setpv(sv, nent->n_name);
4949 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4950 sv_setpv(sv, nent->n_name);
4951 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4952 for (elem = nent->n_aliases; elem && *elem; elem++) {
4953 sv_catpv(sv, *elem);
4955 sv_catpvn(sv, " ", 1);
4957 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4958 sv_setiv(sv, (IV)nent->n_addrtype);
4959 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4960 sv_setiv(sv, (IV)nent->n_net);
4965 DIE(aTHX_ PL_no_sock_func, "getnetent");
4971 #ifdef HAS_GETPROTOBYNAME
4972 return pp_gprotoent();
4974 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4980 #ifdef HAS_GETPROTOBYNUMBER
4981 return pp_gprotoent();
4983 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4989 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4991 I32 which = PL_op->op_type;
4992 register char **elem;
4994 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4995 struct protoent *getprotobyname(Netdb_name_t);
4996 struct protoent *getprotobynumber(int);
4997 struct protoent *getprotoent(void);
4999 struct protoent *pent;
5002 if (which == OP_GPBYNAME) {
5003 #ifdef HAS_GETPROTOBYNAME
5004 char* name = POPpbytex;
5005 pent = PerlSock_getprotobyname(name);
5007 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5010 else if (which == OP_GPBYNUMBER) {
5011 #ifdef HAS_GETPROTOBYNUMBER
5013 pent = PerlSock_getprotobynumber(number);
5015 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5019 #ifdef HAS_GETPROTOENT
5020 pent = PerlSock_getprotoent();
5022 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5026 if (GIMME != G_ARRAY) {
5027 PUSHs(sv = sv_newmortal());
5029 if (which == OP_GPBYNAME)
5030 sv_setiv(sv, (IV)pent->p_proto);
5032 sv_setpv(sv, pent->p_name);
5038 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5039 sv_setpv(sv, pent->p_name);
5040 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5041 for (elem = pent->p_aliases; elem && *elem; elem++) {
5042 sv_catpv(sv, *elem);
5044 sv_catpvn(sv, " ", 1);
5046 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5047 sv_setiv(sv, (IV)pent->p_proto);
5052 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5058 #ifdef HAS_GETSERVBYNAME
5059 return pp_gservent();
5061 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5067 #ifdef HAS_GETSERVBYPORT
5068 return pp_gservent();
5070 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5076 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5078 I32 which = PL_op->op_type;
5079 register char **elem;
5081 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5082 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5083 struct servent *getservbyport(int, Netdb_name_t);
5084 struct servent *getservent(void);
5086 struct servent *sent;
5089 if (which == OP_GSBYNAME) {
5090 #ifdef HAS_GETSERVBYNAME
5091 char *proto = POPpbytex;
5092 char *name = POPpbytex;
5094 if (proto && !*proto)
5097 sent = PerlSock_getservbyname(name, proto);
5099 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5102 else if (which == OP_GSBYPORT) {
5103 #ifdef HAS_GETSERVBYPORT
5104 char *proto = POPpbytex;
5105 unsigned short port = (unsigned short)POPu;
5107 if (proto && !*proto)
5111 port = PerlSock_htons(port);
5113 sent = PerlSock_getservbyport(port, proto);
5115 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5119 #ifdef HAS_GETSERVENT
5120 sent = PerlSock_getservent();
5122 DIE(aTHX_ PL_no_sock_func, "getservent");
5126 if (GIMME != G_ARRAY) {
5127 PUSHs(sv = sv_newmortal());
5129 if (which == OP_GSBYNAME) {
5131 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5133 sv_setiv(sv, (IV)(sent->s_port));
5137 sv_setpv(sv, sent->s_name);
5143 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5144 sv_setpv(sv, sent->s_name);
5145 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5146 for (elem = sent->s_aliases; elem && *elem; elem++) {
5147 sv_catpv(sv, *elem);
5149 sv_catpvn(sv, " ", 1);
5151 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5153 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5155 sv_setiv(sv, (IV)(sent->s_port));
5157 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5158 sv_setpv(sv, sent->s_proto);
5163 DIE(aTHX_ PL_no_sock_func, "getservent");
5169 #ifdef HAS_SETHOSTENT
5171 PerlSock_sethostent(TOPi);
5174 DIE(aTHX_ PL_no_sock_func, "sethostent");
5180 #ifdef HAS_SETNETENT
5182 PerlSock_setnetent(TOPi);
5185 DIE(aTHX_ PL_no_sock_func, "setnetent");
5191 #ifdef HAS_SETPROTOENT
5193 PerlSock_setprotoent(TOPi);
5196 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5202 #ifdef HAS_SETSERVENT
5204 PerlSock_setservent(TOPi);
5207 DIE(aTHX_ PL_no_sock_func, "setservent");
5213 #ifdef HAS_ENDHOSTENT
5215 PerlSock_endhostent();
5219 DIE(aTHX_ PL_no_sock_func, "endhostent");
5225 #ifdef HAS_ENDNETENT
5227 PerlSock_endnetent();
5231 DIE(aTHX_ PL_no_sock_func, "endnetent");
5237 #ifdef HAS_ENDPROTOENT
5239 PerlSock_endprotoent();
5243 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5249 #ifdef HAS_ENDSERVENT
5251 PerlSock_endservent();
5255 DIE(aTHX_ PL_no_sock_func, "endservent");
5264 DIE(aTHX_ PL_no_func, "getpwnam");
5273 DIE(aTHX_ PL_no_func, "getpwuid");
5281 I32 which = PL_op->op_type;
5284 struct passwd *pwent = NULL;
5286 * We currently support only the SysV getsp* shadow password interface.
5287 * The interface is declared in <shadow.h> and often one needs to link
5288 * with -lsecurity or some such.
5289 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5292 * AIX getpwnam() is clever enough to return the encrypted password
5293 * only if the caller (euid?) is root.
5295 * There are at least three other shadow password APIs. Many platforms
5296 * seem to contain more than one interface for accessing the shadow
5297 * password databases, possibly for compatibility reasons.
5298 * The getsp*() is by far he simplest one, the other two interfaces
5299 * are much more complicated, but also very similar to each other.
5304 * struct pr_passwd *getprpw*();
5305 * The password is in
5306 * char getprpw*(...).ufld.fd_encrypt[]
5307 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5312 * struct es_passwd *getespw*();
5313 * The password is in
5314 * char *(getespw*(...).ufld.fd_encrypt)
5315 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5318 * struct userpw *getuserpw();
5319 * The password is in
5320 * char *(getuserpw(...)).spw_upw_passwd
5321 * (but the de facto standard getpwnam() should work okay)
5323 * Mention I_PROT here so that Configure probes for it.
5325 * In HP-UX for getprpw*() the manual page claims that one should include
5326 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5327 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5328 * and pp_sys.c already includes <shadow.h> if there is such.
5330 * Note that <sys/security.h> is already probed for, but currently
5331 * it is only included in special cases.
5333 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5334 * be preferred interface, even though also the getprpw*() interface
5335 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5336 * One also needs to call set_auth_parameters() in main() before
5337 * doing anything else, whether one is using getespw*() or getprpw*().
5339 * Note that accessing the shadow databases can be magnitudes
5340 * slower than accessing the standard databases.
5345 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5346 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5347 * the pw_comment is left uninitialized. */
5348 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5354 char* name = POPpbytex;
5355 pwent = getpwnam(name);
5361 pwent = getpwuid(uid);
5365 # ifdef HAS_GETPWENT
5367 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5368 if (pwent) pwent = getpwnam(pwent->pw_name);
5371 DIE(aTHX_ PL_no_func, "getpwent");
5377 if (GIMME != G_ARRAY) {
5378 PUSHs(sv = sv_newmortal());
5380 if (which == OP_GPWNAM)
5381 # if Uid_t_sign <= 0
5382 sv_setiv(sv, (IV)pwent->pw_uid);
5384 sv_setuv(sv, (UV)pwent->pw_uid);
5387 sv_setpv(sv, pwent->pw_name);
5393 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5394 sv_setpv(sv, pwent->pw_name);
5396 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5398 /* If we have getspnam(), we try to dig up the shadow
5399 * password. If we are underprivileged, the shadow
5400 * interface will set the errno to EACCES or similar,
5401 * and return a null pointer. If this happens, we will
5402 * use the dummy password (usually "*" or "x") from the
5403 * standard password database.
5405 * In theory we could skip the shadow call completely
5406 * if euid != 0 but in practice we cannot know which
5407 * security measures are guarding the shadow databases
5408 * on a random platform.
5410 * Resist the urge to use additional shadow interfaces.
5411 * Divert the urge to writing an extension instead.
5414 /* Some AIX setups falsely(?) detect some getspnam(), which
5415 * has a different API than the Solaris/IRIX one. */
5416 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5418 struct spwd *spwent;
5419 int saverrno; /* Save and restore errno so that
5420 * underprivileged attempts seem
5421 * to have never made the unsccessful
5422 * attempt to retrieve the shadow password. */
5425 spwent = getspnam(pwent->pw_name);
5427 if (spwent && spwent->sp_pwdp)
5428 sv_setpv(sv, spwent->sp_pwdp);
5432 if (!SvPOK(sv)) /* Use the standard password, then. */
5433 sv_setpv(sv, pwent->pw_passwd);
5436 # ifndef INCOMPLETE_TAINTS
5437 /* passwd is tainted because user himself can diddle with it.
5438 * admittedly not much and in a very limited way, but nevertheless. */
5442 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5443 # if Uid_t_sign <= 0
5444 sv_setiv(sv, (IV)pwent->pw_uid);
5446 sv_setuv(sv, (UV)pwent->pw_uid);
5449 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5450 # if Uid_t_sign <= 0
5451 sv_setiv(sv, (IV)pwent->pw_gid);
5453 sv_setuv(sv, (UV)pwent->pw_gid);
5455 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5456 * because of the poor interface of the Perl getpw*(),
5457 * not because there's some standard/convention saying so.
5458 * A better interface would have been to return a hash,
5459 * but we are accursed by our history, alas. --jhi. */
5460 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5462 sv_setiv(sv, (IV)pwent->pw_change);
5465 sv_setiv(sv, (IV)pwent->pw_quota);
5468 sv_setpv(sv, pwent->pw_age);
5473 /* pw_class and pw_comment are mutually exclusive--.
5474 * see the above note for pw_change, pw_quota, and pw_age. */
5475 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5477 sv_setpv(sv, pwent->pw_class);
5480 sv_setpv(sv, pwent->pw_comment);
5484 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5486 sv_setpv(sv, pwent->pw_gecos);
5488 # ifndef INCOMPLETE_TAINTS
5489 /* pw_gecos is tainted because user himself can diddle with it. */
5493 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5494 sv_setpv(sv, pwent->pw_dir);
5496 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5497 sv_setpv(sv, pwent->pw_shell);
5498 # ifndef INCOMPLETE_TAINTS
5499 /* pw_shell is tainted because user himself can diddle with it. */
5504 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5505 sv_setiv(sv, (IV)pwent->pw_expire);
5510 DIE(aTHX_ PL_no_func, "getpwent");
5516 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5521 DIE(aTHX_ PL_no_func, "setpwent");
5527 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5532 DIE(aTHX_ PL_no_func, "endpwent");
5541 DIE(aTHX_ PL_no_func, "getgrnam");
5550 DIE(aTHX_ PL_no_func, "getgrgid");
5558 I32 which = PL_op->op_type;
5559 register char **elem;
5561 struct group *grent;
5564 if (which == OP_GGRNAM) {
5565 char* name = POPpbytex;
5566 grent = (struct group *)getgrnam(name);
5568 else if (which == OP_GGRGID) {
5570 grent = (struct group *)getgrgid(gid);
5574 grent = (struct group *)getgrent();
5576 DIE(aTHX_ PL_no_func, "getgrent");
5580 if (GIMME != G_ARRAY) {
5581 PUSHs(sv = sv_newmortal());
5583 if (which == OP_GGRNAM)
5584 sv_setiv(sv, (IV)grent->gr_gid);
5586 sv_setpv(sv, grent->gr_name);
5592 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5593 sv_setpv(sv, grent->gr_name);
5595 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5597 sv_setpv(sv, grent->gr_passwd);
5600 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5601 sv_setiv(sv, (IV)grent->gr_gid);
5603 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5604 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5605 /* In UNICOS/mk (_CRAYMPP) the multithreading
5606 * versions (getgrnam_r, getgrgid_r)
5607 * seem to return an illegal pointer
5608 * as the group members list, gr_mem.
5609 * getgrent() doesn't even have a _r version
5610 * but the gr_mem is poisonous anyway.
5611 * So yes, you cannot get the list of group
5612 * members if building multithreaded in UNICOS/mk. */
5613 for (elem = grent->gr_mem; elem && *elem; elem++) {
5614 sv_catpv(sv, *elem);
5616 sv_catpvn(sv, " ", 1);
5623 DIE(aTHX_ PL_no_func, "getgrent");
5629 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5634 DIE(aTHX_ PL_no_func, "setgrent");
5640 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5645 DIE(aTHX_ PL_no_func, "endgrent");
5655 if (!(tmps = PerlProc_getlogin()))
5657 PUSHp(tmps, strlen(tmps));
5660 DIE(aTHX_ PL_no_func, "getlogin");
5664 /* Miscellaneous. */
5669 dSP; dMARK; dORIGMARK; dTARGET;
5670 register I32 items = SP - MARK;
5671 unsigned long a[20];
5677 while (++MARK <= SP) {
5678 if (SvTAINTED(*MARK)) {
5684 TAINT_PROPER("syscall");
5687 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5688 * or where sizeof(long) != sizeof(char*). But such machines will
5689 * not likely have syscall implemented either, so who cares?
5691 while (++MARK <= SP) {
5692 if (SvNIOK(*MARK) || !i)
5693 a[i++] = SvIV(*MARK);
5694 else if (*MARK == &PL_sv_undef)
5697 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5703 DIE(aTHX_ "Too many args to syscall");
5705 DIE(aTHX_ "Too few args to syscall");
5707 retval = syscall(a[0]);
5710 retval = syscall(a[0],a[1]);
5713 retval = syscall(a[0],a[1],a[2]);
5716 retval = syscall(a[0],a[1],a[2],a[3]);
5719 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5722 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5725 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5728 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5732 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5735 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5738 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5742 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5746 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5750 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5751 a[10],a[11],a[12],a[13]);
5753 #endif /* atarist */
5759 DIE(aTHX_ PL_no_func, "syscall");
5763 #ifdef FCNTL_EMULATE_FLOCK
5765 /* XXX Emulate flock() with fcntl().
5766 What's really needed is a good file locking module.
5770 fcntl_emulate_flock(int fd, int operation)
5774 switch (operation & ~LOCK_NB) {
5776 flock.l_type = F_RDLCK;
5779 flock.l_type = F_WRLCK;
5782 flock.l_type = F_UNLCK;
5788 flock.l_whence = SEEK_SET;
5789 flock.l_start = flock.l_len = (Off_t)0;
5791 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5794 #endif /* FCNTL_EMULATE_FLOCK */
5796 #ifdef LOCKF_EMULATE_FLOCK
5798 /* XXX Emulate flock() with lockf(). This is just to increase
5799 portability of scripts. The calls are not completely
5800 interchangeable. What's really needed is a good file
5804 /* The lockf() constants might have been defined in <unistd.h>.
5805 Unfortunately, <unistd.h> causes troubles on some mixed
5806 (BSD/POSIX) systems, such as SunOS 4.1.3.
5808 Further, the lockf() constants aren't POSIX, so they might not be
5809 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5810 just stick in the SVID values and be done with it. Sigh.
5814 # define F_ULOCK 0 /* Unlock a previously locked region */
5817 # define F_LOCK 1 /* Lock a region for exclusive use */
5820 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5823 # define F_TEST 3 /* Test a region for other processes locks */
5827 lockf_emulate_flock(int fd, int operation)
5833 /* flock locks entire file so for lockf we need to do the same */
5835 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5836 if (pos > 0) /* is seekable and needs to be repositioned */
5837 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5838 pos = -1; /* seek failed, so don't seek back afterwards */
5841 switch (operation) {
5843 /* LOCK_SH - get a shared lock */
5845 /* LOCK_EX - get an exclusive lock */
5847 i = lockf (fd, F_LOCK, 0);
5850 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5851 case LOCK_SH|LOCK_NB:
5852 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5853 case LOCK_EX|LOCK_NB:
5854 i = lockf (fd, F_TLOCK, 0);
5856 if ((errno == EAGAIN) || (errno == EACCES))
5857 errno = EWOULDBLOCK;
5860 /* LOCK_UN - unlock (non-blocking is a no-op) */
5862 case LOCK_UN|LOCK_NB:
5863 i = lockf (fd, F_ULOCK, 0);
5866 /* Default - can't decipher operation */
5873 if (pos > 0) /* need to restore position of the handle */
5874 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5879 #endif /* LOCKF_EMULATE_FLOCK */
5883 * c-indentation-style: bsd
5885 * indent-tabs-mode: t
5888 * ex: set ts=8 sts=4 sw=4 noet: