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>. */
50 extern "C" int syscall(unsigned long,...);
55 # include <sys/wait.h>
59 # include <sys/resource.h>
68 # include <sys/select.h>
72 /* XXX Configure test needed.
73 h_errno might not be a simple 'int', especially for multi-threaded
74 applications, see "extern int errno in perl.h". Creating such
75 a test requires taking into account the differences between
76 compiling multithreaded and singlethreaded ($ccflags et al).
77 HOST_NOT_FOUND is typically defined in <netdb.h>.
79 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
88 struct passwd *getpwnam (char *);
89 struct passwd *getpwuid (Uid_t);
94 struct passwd *getpwent (void);
95 #elif defined (VMS) && defined (my_getpwent)
96 struct passwd *Perl_my_getpwent (void);
105 struct group *getgrnam (char *);
106 struct group *getgrgid (Gid_t);
110 struct group *getgrent (void);
116 # if defined(_MSC_VER) || defined(__MINGW32__)
117 # include <sys/utime.h>
124 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
127 # define my_chsize PerlLIO_chsize
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 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)
312 Perl_croak(aTHX_ "switching effective uid is not implemented");
325 const char *mode = "r";
328 if (PL_op->op_private & OPpOPEN_IN_RAW)
330 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
332 fp = PerlProc_popen(tmps, (char *)mode);
334 const char *type = NULL;
335 if (PL_curcop->cop_io) {
336 type = SvPV_nolen(PL_curcop->cop_io);
339 PerlIO_apply_layers(aTHX_ fp,mode,type);
341 if (gimme == G_VOID) {
343 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
347 else if (gimme == G_SCALAR) {
350 PL_rs = &PL_sv_undef;
351 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
352 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
364 if (sv_gets(sv, fp, 0) == Nullch) {
368 XPUSHs(sv_2mortal(sv));
369 if (SvLEN(sv) - SvCUR(sv) > 20) {
370 SvLEN_set(sv, SvCUR(sv)+1);
371 Renew(SvPVX(sv), SvLEN(sv), char);
376 STATUS_NATIVE_SET(PerlProc_pclose(fp));
377 TAINT; /* "I believe that this is not gratuitous!" */
380 STATUS_NATIVE_SET(-1);
381 if (gimme == G_SCALAR)
391 tryAMAGICunTARGET(iter, -1);
393 /* Note that we only ever get here if File::Glob fails to load
394 * without at the same time croaking, for some reason, or if
395 * perl was built with PERL_EXTERNAL_GLOB */
402 * The external globbing program may use things we can't control,
403 * so for security reasons we must assume the worst.
406 taint_proper(PL_no_security, "glob");
410 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
411 PL_last_in_gv = (GV*)*PL_stack_sp--;
413 SAVESPTR(PL_rs); /* This is not permanent, either. */
414 PL_rs = sv_2mortal(newSVpvn("\000", 1));
417 *SvPVX(PL_rs) = '\n';
421 result = do_readline();
428 PL_last_in_gv = cGVOP_gv;
429 return do_readline();
438 if (SP - MARK != 1) {
440 do_join(TARG, &PL_sv_no, MARK, SP);
447 tmps = SvPV(tmpsv, len);
448 if ((!tmps || !len) && PL_errgv) {
450 (void)SvUPGRADE(error, SVt_PV);
451 if (SvPOK(error) && SvCUR(error))
452 sv_catpv(error, "\t...caught");
454 tmps = SvPV(tmpsv, len);
457 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
459 Perl_warn(aTHX_ "%"SVf, tmpsv);
471 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
473 if (SP - MARK != 1) {
475 do_join(TARG, &PL_sv_no, MARK, SP);
477 tmps = SvPV(tmpsv, len);
483 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
487 (void)SvUPGRADE(error, SVt_PV);
488 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
490 SvSetSV(error,tmpsv);
491 else if (sv_isobject(error)) {
492 HV *stash = SvSTASH(SvRV(error));
493 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
495 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
496 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
503 call_sv((SV*)GvCV(gv),
504 G_SCALAR|G_EVAL|G_KEEPERR);
505 sv_setsv(error,*PL_stack_sp--);
511 if (SvPOK(error) && SvCUR(error))
512 sv_catpv(error, "\t...propagated");
514 tmps = SvPV(tmpsv, len);
518 tmpsv = sv_2mortal(newSVpvn("Died", 4));
520 DIE(aTHX_ "%"SVf, tmpsv);
540 DIE(aTHX_ PL_no_usym, "filehandle");
541 if ((io = GvIOp(gv)))
542 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
544 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
545 /* Method's args are same as ours ... */
546 /* ... except handle is replaced by the object */
547 *MARK-- = SvTIED_obj((SV*)io, mg);
551 call_method("OPEN", G_SCALAR);
564 tmps = SvPV(sv, len);
565 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
568 PUSHi( (I32)PL_forkprocess );
569 else if (PL_forkprocess == 0) /* we are a new child */
588 if (gv && (io = GvIO(gv))
589 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
592 XPUSHs(SvTIED_obj((SV*)io, mg));
595 call_method("CLOSE", G_SCALAR);
601 PUSHs(boolSV(do_close(gv, TRUE)));
621 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
622 DIE(aTHX_ PL_no_usym, "filehandle");
627 do_close(rgv, FALSE);
629 do_close(wgv, FALSE);
631 if (PerlProc_pipe(fd) < 0)
634 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
635 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
636 IoOFP(rstio) = IoIFP(rstio);
637 IoIFP(wstio) = IoOFP(wstio);
638 IoTYPE(rstio) = IoTYPE_RDONLY;
639 IoTYPE(wstio) = IoTYPE_WRONLY;
641 if (!IoIFP(rstio) || !IoOFP(wstio)) {
642 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
643 else PerlLIO_close(fd[0]);
644 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
645 else PerlLIO_close(fd[1]);
648 #if defined(HAS_FCNTL) && defined(F_SETFD)
649 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
650 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
657 DIE(aTHX_ PL_no_func, "pipe");
673 if (gv && (io = GvIO(gv))
674 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
677 XPUSHs(SvTIED_obj((SV*)io, mg));
680 call_method("FILENO", G_SCALAR);
686 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
687 /* Can't do this because people seem to do things like
688 defined(fileno($foo)) to check whether $foo is a valid fh.
689 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
690 report_evil_fh(gv, io, PL_op->op_type);
695 PUSHi(PerlIO_fileno(fp));
706 anum = PerlLIO_umask(0);
707 (void)PerlLIO_umask(anum);
710 anum = PerlLIO_umask(POPi);
711 TAINT_PROPER("umask");
714 /* Only DIE if trying to restrict permissions on `user' (self).
715 * Otherwise it's harmless and more useful to just return undef
716 * since 'group' and 'other' concepts probably don't exist here. */
717 if (MAXARG >= 1 && (POPi & 0700))
718 DIE(aTHX_ "umask not implemented");
719 XPUSHs(&PL_sv_undef);
741 if (gv && (io = GvIO(gv))
742 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
745 XPUSHs(SvTIED_obj((SV*)io, mg));
750 call_method("BINMODE", G_SCALAR);
757 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
758 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
759 report_evil_fh(gv, io, PL_op->op_type);
760 SETERRNO(EBADF,RMS_IFI);
765 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
766 (discp) ? SvPV_nolen(discp) : Nullch)) {
767 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
768 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
769 mode_from_discipline(discp),
770 (discp) ? SvPV_nolen(discp) : Nullch)) {
792 I32 markoff = MARK - PL_stack_base;
793 const char *methname;
794 int how = PERL_MAGIC_tied;
798 switch(SvTYPE(varsv)) {
800 methname = "TIEHASH";
801 HvEITER((HV *)varsv) = Null(HE *);
804 methname = "TIEARRAY";
807 #ifdef GV_UNIQUE_CHECK
808 if (GvUNIQUE((GV*)varsv)) {
809 Perl_croak(aTHX_ "Attempt to tie unique GV");
812 methname = "TIEHANDLE";
813 how = PERL_MAGIC_tiedscalar;
814 /* For tied filehandles, we apply tiedscalar magic to the IO
815 slot of the GP rather than the GV itself. AMS 20010812 */
817 GvIOp(varsv) = newIO();
818 varsv = (SV *)GvIOp(varsv);
821 methname = "TIESCALAR";
822 how = PERL_MAGIC_tiedscalar;
826 if (sv_isobject(*MARK)) {
828 PUSHSTACKi(PERLSI_MAGIC);
830 EXTEND(SP,(I32)items);
834 call_method(methname, G_SCALAR);
837 /* Not clear why we don't call call_method here too.
838 * perhaps to get different error message ?
840 stash = gv_stashsv(*MARK, FALSE);
841 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
842 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
846 PUSHSTACKi(PERLSI_MAGIC);
848 EXTEND(SP,(I32)items);
852 call_sv((SV*)GvCV(gv), G_SCALAR);
858 if (sv_isobject(sv)) {
859 sv_unmagic(varsv, how);
860 /* Croak if a self-tie on an aggregate is attempted. */
861 if (varsv == SvRV(sv) &&
862 (SvTYPE(varsv) == SVt_PVAV ||
863 SvTYPE(varsv) == SVt_PVHV))
865 "Self-ties of arrays and hashes are not supported");
866 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
869 SP = PL_stack_base + markoff;
879 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
880 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
882 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
885 if ((mg = SvTIED_mg(sv, how))) {
886 SV *obj = SvRV(SvTIED_obj(sv, mg));
890 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
891 isGV(gv) && (cv = GvCV(gv))) {
893 XPUSHs(SvTIED_obj((SV*)gv, mg));
894 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
897 call_sv((SV *)cv, G_VOID);
901 else if (ckWARN(WARN_UNTIE)) {
902 if (mg && SvREFCNT(obj) > 1)
903 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
904 "untie attempted while %"UVuf" inner references still exist",
905 (UV)SvREFCNT(obj) - 1 ) ;
909 sv_unmagic(sv, how) ;
918 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
919 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
921 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
924 if ((mg = SvTIED_mg(sv, how))) {
925 SV *osv = SvTIED_obj(sv, mg);
926 if (osv == mg->mg_obj)
927 osv = sv_mortalcopy(osv);
945 sv = sv_mortalcopy(&PL_sv_no);
946 sv_setpv(sv, "AnyDBM_File");
947 stash = gv_stashsv(sv, FALSE);
948 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
950 require_pv("AnyDBM_File.pm");
952 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
953 DIE(aTHX_ "No dbm on this machine");
963 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
965 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
968 call_sv((SV*)GvCV(gv), G_SCALAR);
971 if (!sv_isobject(TOPs)) {
976 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
979 call_sv((SV*)GvCV(gv), G_SCALAR);
983 if (sv_isobject(TOPs)) {
984 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
985 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1007 struct timeval timebuf;
1008 struct timeval *tbuf = &timebuf;
1012 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1017 # if BYTEORDER & 0xf0000
1018 # define ORDERBYTE (0x88888888 - BYTEORDER)
1020 # define ORDERBYTE (0x4444 - BYTEORDER)
1026 for (i = 1; i <= 3; i++) {
1034 /* little endians can use vecs directly */
1035 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1042 masksize = NFDBITS / NBBY;
1044 masksize = sizeof(long); /* documented int, everyone seems to use long */
1046 Zero(&fd_sets[0], 4, char*);
1049 # if SELECT_MIN_BITS == 1
1050 growsize = sizeof(fd_set);
1052 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1053 # undef SELECT_MIN_BITS
1054 # define SELECT_MIN_BITS __FD_SETSIZE
1056 /* If SELECT_MIN_BITS is greater than one we most probably will want
1057 * to align the sizes with SELECT_MIN_BITS/8 because for example
1058 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1059 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1060 * on (sets/tests/clears bits) is 32 bits. */
1061 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1069 timebuf.tv_sec = (long)value;
1070 value -= (NV)timebuf.tv_sec;
1071 timebuf.tv_usec = (long)(value * 1000000.0);
1074 tbuf = Null(struct timeval*);
1076 for (i = 1; i <= 3; i++) {
1082 else if (!SvPOK(sv))
1083 SvPV_force(sv,n_a); /* force string conversion */
1086 Sv_Grow(sv, growsize);
1090 while (++j <= growsize) {
1094 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1096 New(403, fd_sets[i], growsize, char);
1097 for (offset = 0; offset < growsize; offset += masksize) {
1098 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1099 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1102 fd_sets[i] = SvPVX(sv);
1106 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1107 /* Can't make just the (void*) conditional because that would be
1108 * cpp #if within cpp macro, and not all compilers like that. */
1109 nfound = PerlSock_select(
1111 (Select_fd_set_t) fd_sets[1],
1112 (Select_fd_set_t) fd_sets[2],
1113 (Select_fd_set_t) fd_sets[3],
1114 (void*) tbuf); /* Workaround for compiler bug. */
1116 nfound = PerlSock_select(
1118 (Select_fd_set_t) fd_sets[1],
1119 (Select_fd_set_t) fd_sets[2],
1120 (Select_fd_set_t) fd_sets[3],
1123 for (i = 1; i <= 3; i++) {
1126 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1128 for (offset = 0; offset < growsize; offset += masksize) {
1129 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1130 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1132 Safefree(fd_sets[i]);
1139 if (GIMME == G_ARRAY && tbuf) {
1140 value = (NV)(timebuf.tv_sec) +
1141 (NV)(timebuf.tv_usec) / 1000000.0;
1142 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1143 sv_setnv(sv, value);
1147 DIE(aTHX_ "select not implemented");
1152 Perl_setdefout(pTHX_ GV *gv)
1155 (void)SvREFCNT_inc(gv);
1157 SvREFCNT_dec(PL_defoutgv);
1164 GV *newdefout, *egv;
1167 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1169 egv = GvEGV(PL_defoutgv);
1174 XPUSHs(&PL_sv_undef);
1176 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1177 if (gvp && *gvp == egv) {
1178 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1182 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1187 if (!GvIO(newdefout))
1188 gv_IOadd(newdefout);
1189 setdefout(newdefout);
1207 if (gv && (io = GvIO(gv))
1208 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1210 I32 gimme = GIMME_V;
1212 XPUSHs(SvTIED_obj((SV*)io, mg));
1215 call_method("GETC", gimme);
1218 if (gimme == G_SCALAR)
1219 SvSetMagicSV_nosteal(TARG, TOPs);
1222 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1223 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1224 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1225 report_evil_fh(gv, io, PL_op->op_type);
1226 SETERRNO(EBADF,RMS_IFI);
1230 sv_setpv(TARG, " ");
1231 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1232 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1233 /* Find out how many bytes the char needs */
1234 Size_t len = UTF8SKIP(SvPVX(TARG));
1237 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1238 SvCUR_set(TARG,1+len);
1248 return pp_sysread();
1252 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1254 register PERL_CONTEXT *cx;
1255 I32 gimme = GIMME_V;
1260 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1262 cx->blk_sub.retop = retop;
1263 PAD_SET_CUR(CvPADLIST(cv), 1);
1265 setdefout(gv); /* locally select filehandle so $% et al work */
1298 SV *tmpsv = sv_newmortal();
1299 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1300 name = SvPV_nolen(tmpsv);
1303 DIE(aTHX_ "Undefined format \"%s\" called", name);
1304 DIE(aTHX_ "Not a format reference");
1307 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1309 IoFLAGS(io) &= ~IOf_DIDTOP;
1310 return doform(cv,gv,PL_op->op_next);
1316 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1317 register IO *io = GvIOp(gv);
1318 PerlIO *ofp = IoOFP(io);
1322 register PERL_CONTEXT *cx;
1324 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1325 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1328 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1329 PL_formtarget != PL_toptarget)
1333 if (!IoTOP_GV(io)) {
1337 if (!IoTOP_NAME(io)) {
1338 if (!IoFMT_NAME(io))
1339 IoFMT_NAME(io) = savepv(GvNAME(gv));
1340 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1341 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1342 if ((topgv && GvFORM(topgv)) ||
1343 !gv_fetchpv("top",FALSE,SVt_PVFM))
1344 IoTOP_NAME(io) = savesvpv(topname);
1346 IoTOP_NAME(io) = savepvn("top", 3);
1348 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1349 if (!topgv || !GvFORM(topgv)) {
1350 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1353 IoTOP_GV(io) = topgv;
1355 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1356 I32 lines = IoLINES_LEFT(io);
1357 char *s = SvPVX(PL_formtarget);
1358 if (lines <= 0) /* Yow, header didn't even fit!!! */
1360 while (lines-- > 0) {
1361 s = strchr(s, '\n');
1367 STRLEN save = SvCUR(PL_formtarget);
1368 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1369 do_print(PL_formtarget, ofp);
1370 SvCUR_set(PL_formtarget, save);
1371 sv_chop(PL_formtarget, s);
1372 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1375 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1376 do_print(PL_formfeed, ofp);
1377 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1379 PL_formtarget = PL_toptarget;
1380 IoFLAGS(io) |= IOf_DIDTOP;
1383 DIE(aTHX_ "bad top format reference");
1388 SV *sv = sv_newmortal();
1389 gv_efullname4(sv, fgv, Nullch, FALSE);
1390 name = SvPV_nolen(sv);
1393 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1396 DIE(aTHX_ "Undefined top format called");
1400 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1401 return doform(cv,gv,PL_op);
1405 POPBLOCK(cx,PL_curpm);
1411 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1413 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1414 else if (ckWARN(WARN_CLOSED))
1415 report_evil_fh(gv, io, PL_op->op_type);
1420 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1421 if (ckWARN(WARN_IO))
1422 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1424 if (!do_print(PL_formtarget, fp))
1427 FmLINES(PL_formtarget) = 0;
1428 SvCUR_set(PL_formtarget, 0);
1429 *SvEND(PL_formtarget) = '\0';
1430 if (IoFLAGS(io) & IOf_FLUSH)
1431 (void)PerlIO_flush(fp);
1436 PL_formtarget = PL_bodytarget;
1438 return cx->blk_sub.retop;
1443 dSP; dMARK; dORIGMARK;
1450 if (PL_op->op_flags & OPf_STACKED)
1455 if (gv && (io = GvIO(gv))
1456 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1458 if (MARK == ORIGMARK) {
1461 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1465 *MARK = SvTIED_obj((SV*)io, mg);
1468 call_method("PRINTF", G_SCALAR);
1471 MARK = ORIGMARK + 1;
1478 if (!(io = GvIO(gv))) {
1479 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1480 report_evil_fh(gv, io, PL_op->op_type);
1481 SETERRNO(EBADF,RMS_IFI);
1484 else if (!(fp = IoOFP(io))) {
1485 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1487 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1488 else if (ckWARN(WARN_CLOSED))
1489 report_evil_fh(gv, io, PL_op->op_type);
1491 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1495 do_sprintf(sv, SP - MARK, MARK + 1);
1496 if (!do_print(sv, fp))
1499 if (IoFLAGS(io) & IOf_FLUSH)
1500 if (PerlIO_flush(fp) == EOF)
1511 PUSHs(&PL_sv_undef);
1532 /* Need TIEHANDLE method ? */
1534 tmps = SvPV(sv, len);
1535 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1536 IoLINES(GvIOp(gv)) = 0;
1540 PUSHs(&PL_sv_undef);
1547 dSP; dMARK; dORIGMARK; dTARGET;
1554 Sock_size_t bufsize;
1563 bool charstart = FALSE;
1564 STRLEN charskip = 0;
1568 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1569 && gv && (io = GvIO(gv))
1570 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1575 *MARK = SvTIED_obj((SV*)io, mg);
1577 call_method("READ", G_SCALAR);
1590 sv_setpvn(bufsv, "", 0);
1591 length = SvIVx(*++MARK);
1594 offset = SvIVx(*++MARK);
1598 if (!io || !IoIFP(io)) {
1599 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1600 report_evil_fh(gv, io, PL_op->op_type);
1601 SETERRNO(EBADF,RMS_IFI);
1604 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1605 buffer = SvPVutf8_force(bufsv, blen);
1606 /* UTF-8 may not have been set if they are all low bytes */
1611 buffer = SvPV_force(bufsv, blen);
1612 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1615 DIE(aTHX_ "Negative length");
1623 if (PL_op->op_type == OP_RECV) {
1624 char namebuf[MAXPATHLEN];
1625 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1626 bufsize = sizeof (struct sockaddr_in);
1628 bufsize = sizeof namebuf;
1630 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1634 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1635 /* 'offset' means 'flags' here */
1636 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1637 (struct sockaddr *)namebuf, &bufsize);
1641 /* Bogus return without padding */
1642 bufsize = sizeof (struct sockaddr_in);
1644 SvCUR_set(bufsv, count);
1645 *SvEND(bufsv) = '\0';
1646 (void)SvPOK_only(bufsv);
1650 /* This should not be marked tainted if the fp is marked clean */
1651 if (!(IoFLAGS(io) & IOf_UNTAINT))
1652 SvTAINTED_on(bufsv);
1654 sv_setpvn(TARG, namebuf, bufsize);
1659 if (PL_op->op_type == OP_RECV)
1660 DIE(aTHX_ PL_no_sock_func, "recv");
1662 if (DO_UTF8(bufsv)) {
1663 /* offset adjust in characters not bytes */
1664 blen = sv_len_utf8(bufsv);
1667 if (-offset > (int)blen)
1668 DIE(aTHX_ "Offset outside string");
1671 if (DO_UTF8(bufsv)) {
1672 /* convert offset-as-chars to offset-as-bytes */
1673 if (offset >= (int)blen)
1674 offset += SvCUR(bufsv) - blen;
1676 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1679 bufsize = SvCUR(bufsv);
1680 /* Allocating length + offset + 1 isn't perfect in the case of reading
1681 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1683 (should be 2 * length + offset + 1, or possibly something longer if
1684 PL_encoding is true) */
1685 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1686 if (offset > bufsize) { /* Zero any newly allocated space */
1687 Zero(buffer+bufsize, offset-bufsize, char);
1689 buffer = buffer + offset;
1691 read_target = bufsv;
1693 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1694 concatenate it to the current buffer. */
1696 /* Truncate the existing buffer to the start of where we will be
1698 SvCUR_set(bufsv, offset);
1700 read_target = sv_newmortal();
1701 SvUPGRADE(read_target, SVt_PV);
1702 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1705 if (PL_op->op_type == OP_SYSREAD) {
1706 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1707 if (IoTYPE(io) == IoTYPE_SOCKET) {
1708 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1714 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1719 #ifdef HAS_SOCKET__bad_code_maybe
1720 if (IoTYPE(io) == IoTYPE_SOCKET) {
1721 char namebuf[MAXPATHLEN];
1722 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1723 bufsize = sizeof (struct sockaddr_in);
1725 bufsize = sizeof namebuf;
1727 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1728 (struct sockaddr *)namebuf, &bufsize);
1733 count = PerlIO_read(IoIFP(io), buffer, length);
1734 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1735 if (count == 0 && PerlIO_error(IoIFP(io)))
1739 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1740 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1743 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1744 *SvEND(read_target) = '\0';
1745 (void)SvPOK_only(read_target);
1746 if (fp_utf8 && !IN_BYTES) {
1747 /* Look at utf8 we got back and count the characters */
1748 char *bend = buffer + count;
1749 while (buffer < bend) {
1751 skip = UTF8SKIP(buffer);
1754 if (buffer - charskip + skip > bend) {
1755 /* partial character - try for rest of it */
1756 length = skip - (bend-buffer);
1757 offset = bend - SvPVX(bufsv);
1769 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1770 provided amount read (count) was what was requested (length)
1772 if (got < wanted && count == length) {
1773 length = wanted - got;
1774 offset = bend - SvPVX(bufsv);
1777 /* return value is character count */
1781 else if (buffer_utf8) {
1782 /* Let svcatsv upgrade the bytes we read in to utf8.
1783 The buffer is a mortal so will be freed soon. */
1784 sv_catsv_nomg(bufsv, read_target);
1787 /* This should not be marked tainted if the fp is marked clean */
1788 if (!(IoFLAGS(io) & IOf_UNTAINT))
1789 SvTAINTED_on(bufsv);
1802 int items = (SP - PL_stack_base) - TOPMARK;
1806 sv = sv_2mortal(newSViv(sv_len(*SP)));
1815 dSP; dMARK; dORIGMARK; dTARGET;
1826 if (PL_op->op_type == OP_SYSWRITE
1827 && gv && (io = GvIO(gv))
1828 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1833 *MARK = SvTIED_obj((SV*)io, mg);
1835 call_method("WRITE", G_SCALAR);
1846 #if Size_t_size > IVSIZE
1847 length = (Size_t)SvNVx(*++MARK);
1849 length = (Size_t)SvIVx(*++MARK);
1851 if ((SSize_t)length < 0)
1852 DIE(aTHX_ "Negative length");
1855 if (!io || !IoIFP(io)) {
1857 if (ckWARN(WARN_CLOSED))
1858 report_evil_fh(gv, io, PL_op->op_type);
1859 SETERRNO(EBADF,RMS_IFI);
1863 if (PerlIO_isutf8(IoIFP(io))) {
1864 if (!SvUTF8(bufsv)) {
1865 bufsv = sv_2mortal(newSVsv(bufsv));
1866 buffer = sv_2pvutf8(bufsv, &blen);
1868 buffer = SvPV(bufsv, blen);
1871 if (DO_UTF8(bufsv)) {
1872 /* Not modifying source SV, so making a temporary copy. */
1873 bufsv = sv_2mortal(newSVsv(bufsv));
1874 sv_utf8_downgrade(bufsv, FALSE);
1876 buffer = SvPV(bufsv, blen);
1879 if (PL_op->op_type == OP_SYSWRITE) {
1881 if (DO_UTF8(bufsv)) {
1882 /* length and offset are in chars */
1883 blen = sv_len_utf8(bufsv);
1886 offset = SvIVx(*++MARK);
1888 if (-offset > (IV)blen)
1889 DIE(aTHX_ "Offset outside string");
1891 } else if (offset >= (IV)blen && blen > 0)
1892 DIE(aTHX_ "Offset outside string");
1895 if (length > blen - offset)
1896 length = blen - offset;
1897 if (DO_UTF8(bufsv)) {
1898 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1899 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1902 buffer = buffer+offset;
1904 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1905 if (IoTYPE(io) == IoTYPE_SOCKET) {
1906 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1912 /* See the note at doio.c:do_print about filesize limits. --jhi */
1913 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1918 else if (SP > MARK) {
1921 sockbuf = SvPVx(*++MARK, mlen);
1922 /* length is really flags */
1923 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1924 length, (struct sockaddr *)sockbuf, mlen);
1927 /* length is really flags */
1928 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1931 DIE(aTHX_ PL_no_sock_func, "send");
1937 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1938 #if Size_t_size > IVSIZE
1952 return pp_sysread();
1963 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1965 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1967 if (io && !IoIFP(io)) {
1968 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1970 IoFLAGS(io) &= ~IOf_START;
1971 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1972 sv_setpvn(GvSV(gv), "-", 1);
1973 SvSETMAGIC(GvSV(gv));
1975 else if (!nextargv(gv))
1980 gv = PL_last_in_gv; /* eof */
1983 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1985 if (gv && (io = GvIO(gv))
1986 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1989 XPUSHs(SvTIED_obj((SV*)io, mg));
1992 call_method("EOF", G_SCALAR);
1998 PUSHs(boolSV(!gv || do_eof(gv)));
2012 gv = PL_last_in_gv = (GV*)POPs;
2014 if (gv && (io = GvIO(gv))
2015 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2018 XPUSHs(SvTIED_obj((SV*)io, mg));
2021 call_method("TELL", G_SCALAR);
2027 #if LSEEKSIZE > IVSIZE
2028 PUSHn( do_tell(gv) );
2030 PUSHi( do_tell(gv) );
2037 return pp_sysseek();
2046 #if LSEEKSIZE > IVSIZE
2047 Off_t offset = (Off_t)SvNVx(POPs);
2049 Off_t offset = (Off_t)SvIVx(POPs);
2053 gv = PL_last_in_gv = (GV*)POPs;
2055 if (gv && (io = GvIO(gv))
2056 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2059 XPUSHs(SvTIED_obj((SV*)io, mg));
2060 #if LSEEKSIZE > IVSIZE
2061 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2063 XPUSHs(sv_2mortal(newSViv(offset)));
2065 XPUSHs(sv_2mortal(newSViv(whence)));
2068 call_method("SEEK", G_SCALAR);
2074 if (PL_op->op_type == OP_SEEK)
2075 PUSHs(boolSV(do_seek(gv, offset, whence)));
2077 Off_t sought = do_sysseek(gv, offset, whence);
2079 PUSHs(&PL_sv_undef);
2082 #if LSEEKSIZE > IVSIZE
2087 : newSVpvn(zero_but_true, ZBTLEN);
2088 PUSHs(sv_2mortal(sv));
2097 /* There seems to be no consensus on the length type of truncate()
2098 * and ftruncate(), both off_t and size_t have supporters. In
2099 * general one would think that when using large files, off_t is
2100 * at least as wide as size_t, so using an off_t should be okay. */
2101 /* XXX Configure probe for the length type of *truncate() needed XXX */
2104 #if Off_t_size > IVSIZE
2109 /* Checking for length < 0 is problematic as the type might or
2110 * might not be signed: if it is not, clever compilers will moan. */
2111 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2118 if (PL_op->op_flags & OPf_SPECIAL) {
2119 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2128 TAINT_PROPER("truncate");
2129 if (!(fp = IoIFP(io))) {
2135 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2137 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2148 if (SvTYPE(sv) == SVt_PVGV) {
2149 tmpgv = (GV*)sv; /* *main::FRED for example */
2150 goto do_ftruncate_gv;
2152 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2153 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2154 goto do_ftruncate_gv;
2156 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2157 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2158 goto do_ftruncate_io;
2161 name = SvPV(sv, n_a);
2162 TAINT_PROPER("truncate");
2164 if (truncate(name, len) < 0)
2170 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2173 if (my_chsize(tmpfd, len) < 0)
2175 PerlLIO_close(tmpfd);
2184 SETERRNO(EBADF,RMS_IFI);
2198 unsigned int func = POPu;
2199 const int optype = PL_op->op_type;
2203 IO *io = gv ? GvIOn(gv) : 0;
2205 if (!io || !argsv || !IoIFP(io)) {
2206 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2207 report_evil_fh(gv, io, PL_op->op_type);
2208 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2212 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2215 s = SvPV_force(argsv, len);
2216 need = IOCPARM_LEN(func);
2218 s = Sv_Grow(argsv, need + 1);
2219 SvCUR_set(argsv, need);
2222 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2225 retval = SvIV(argsv);
2226 s = INT2PTR(char*,retval); /* ouch */
2229 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2231 if (optype == OP_IOCTL)
2233 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2235 DIE(aTHX_ "ioctl is not implemented");
2239 DIE(aTHX_ "fcntl is not implemented");
2241 #if defined(OS2) && defined(__EMX__)
2242 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2244 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2248 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2250 if (s[SvCUR(argsv)] != 17)
2251 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2253 s[SvCUR(argsv)] = 0; /* put our null back */
2254 SvSETMAGIC(argsv); /* Assume it has changed */
2263 PUSHp(zero_but_true, ZBTLEN);
2284 if (gv && (io = GvIO(gv)))
2291 (void)PerlIO_flush(fp);
2292 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2295 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2296 report_evil_fh(gv, io, PL_op->op_type);
2298 SETERRNO(EBADF,RMS_IFI);
2303 DIE(aTHX_ PL_no_func, "flock()");
2315 int protocol = POPi;
2321 io = gv ? GvIOn(gv) : NULL;
2324 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2325 report_evil_fh(gv, io, PL_op->op_type);
2327 do_close(gv, FALSE);
2328 SETERRNO(EBADF,LIB_INVARG);
2333 do_close(gv, FALSE);
2335 TAINT_PROPER("socket");
2336 fd = PerlSock_socket(domain, type, protocol);
2339 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2340 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2341 IoTYPE(io) = IoTYPE_SOCKET;
2342 if (!IoIFP(io) || !IoOFP(io)) {
2343 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2344 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2345 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2348 #if defined(HAS_FCNTL) && defined(F_SETFD)
2349 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2353 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2358 DIE(aTHX_ PL_no_sock_func, "socket");
2364 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2370 int protocol = POPi;
2377 io1 = gv1 ? GvIOn(gv1) : NULL;
2378 io2 = gv2 ? GvIOn(gv2) : NULL;
2379 if (!gv1 || !gv2 || !io1 || !io2) {
2380 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2382 report_evil_fh(gv1, io1, PL_op->op_type);
2384 report_evil_fh(gv1, io2, PL_op->op_type);
2387 do_close(gv1, FALSE);
2389 do_close(gv2, FALSE);
2394 do_close(gv1, FALSE);
2396 do_close(gv2, FALSE);
2398 TAINT_PROPER("socketpair");
2399 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2401 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2402 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2403 IoTYPE(io1) = IoTYPE_SOCKET;
2404 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2405 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2406 IoTYPE(io2) = IoTYPE_SOCKET;
2407 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2408 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2409 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2410 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2411 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2412 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2413 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2416 #if defined(HAS_FCNTL) && defined(F_SETFD)
2417 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2418 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2423 DIE(aTHX_ PL_no_sock_func, "socketpair");
2431 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2432 extern void GETPRIVMODE();
2433 extern void GETUSERMODE();
2438 register IO *io = GvIOn(gv);
2442 int mpeprivmode = 0;
2445 if (!io || !IoIFP(io))
2448 addr = SvPV(addrsv, len);
2449 TAINT_PROPER("bind");
2450 #ifdef MPE /* Deal with MPE bind() peculiarities */
2451 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2452 /* The address *MUST* stupidly be zero. */
2453 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2454 /* PRIV mode is required to bind() to ports < 1024. */
2455 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2456 ((struct sockaddr_in *)addr)->sin_port > 0) {
2457 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2462 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2463 (struct sockaddr *)addr, len) >= 0)
2466 #ifdef MPE /* Switch back to USER mode */
2477 if (ckWARN(WARN_CLOSED))
2478 report_evil_fh(gv, io, PL_op->op_type);
2479 SETERRNO(EBADF,SS_IVCHAN);
2482 DIE(aTHX_ PL_no_sock_func, "bind");
2493 register IO *io = GvIOn(gv);
2496 if (!io || !IoIFP(io))
2499 addr = SvPV(addrsv, len);
2500 TAINT_PROPER("connect");
2501 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2507 if (ckWARN(WARN_CLOSED))
2508 report_evil_fh(gv, io, PL_op->op_type);
2509 SETERRNO(EBADF,SS_IVCHAN);
2512 DIE(aTHX_ PL_no_sock_func, "connect");
2522 register IO *io = gv ? GvIOn(gv) : NULL;
2524 if (!gv || !io || !IoIFP(io))
2527 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2533 if (ckWARN(WARN_CLOSED))
2534 report_evil_fh(gv, io, PL_op->op_type);
2535 SETERRNO(EBADF,SS_IVCHAN);
2538 DIE(aTHX_ PL_no_sock_func, "listen");
2550 char namebuf[MAXPATHLEN];
2551 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2552 Sock_size_t len = sizeof (struct sockaddr_in);
2554 Sock_size_t len = sizeof namebuf;
2567 if (!gstio || !IoIFP(gstio))
2571 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2575 do_close(ngv, FALSE);
2576 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2577 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2578 IoTYPE(nstio) = IoTYPE_SOCKET;
2579 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2580 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2581 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2582 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2585 #if defined(HAS_FCNTL) && defined(F_SETFD)
2586 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2590 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2591 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2593 #ifdef __SCO_VERSION__
2594 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2597 PUSHp(namebuf, len);
2601 if (ckWARN(WARN_CLOSED))
2602 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2603 SETERRNO(EBADF,SS_IVCHAN);
2609 DIE(aTHX_ PL_no_sock_func, "accept");
2619 register IO *io = GvIOn(gv);
2621 if (!io || !IoIFP(io))
2624 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2628 if (ckWARN(WARN_CLOSED))
2629 report_evil_fh(gv, io, PL_op->op_type);
2630 SETERRNO(EBADF,SS_IVCHAN);
2633 DIE(aTHX_ PL_no_sock_func, "shutdown");
2640 return pp_ssockopt();
2642 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2650 int optype = PL_op->op_type;
2653 unsigned int optname;
2659 if (optype == OP_GSOCKOPT)
2660 sv = sv_2mortal(NEWSV(22, 257));
2663 optname = (unsigned int) POPi;
2664 lvl = (unsigned int) POPi;
2668 if (!io || !IoIFP(io))
2671 fd = PerlIO_fileno(IoIFP(io));
2675 (void)SvPOK_only(sv);
2679 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2694 aint = (int)SvIV(sv);
2698 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2707 if (ckWARN(WARN_CLOSED))
2708 report_evil_fh(gv, io, optype);
2709 SETERRNO(EBADF,SS_IVCHAN);
2714 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2721 return pp_getpeername();
2723 DIE(aTHX_ PL_no_sock_func, "getsockname");
2731 int optype = PL_op->op_type;
2735 register IO *io = GvIOn(gv);
2738 if (!io || !IoIFP(io))
2741 sv = sv_2mortal(NEWSV(22, 257));
2742 (void)SvPOK_only(sv);
2746 fd = PerlIO_fileno(IoIFP(io));
2748 case OP_GETSOCKNAME:
2749 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2752 case OP_GETPEERNAME:
2753 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2755 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2757 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";
2758 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2759 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2760 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2761 sizeof(u_short) + sizeof(struct in_addr))) {
2768 #ifdef BOGUS_GETNAME_RETURN
2769 /* Interactive Unix, getpeername() and getsockname()
2770 does not return valid namelen */
2771 if (len == BOGUS_GETNAME_RETURN)
2772 len = sizeof(struct sockaddr);
2780 if (ckWARN(WARN_CLOSED))
2781 report_evil_fh(gv, io, optype);
2782 SETERRNO(EBADF,SS_IVCHAN);
2787 DIE(aTHX_ PL_no_sock_func, "getpeername");
2806 if (PL_op->op_flags & OPf_REF) {
2808 if (PL_op->op_type == OP_LSTAT) {
2809 if (gv != PL_defgv) {
2810 if (ckWARN(WARN_IO))
2811 Perl_warner(aTHX_ packWARN(WARN_IO),
2812 "lstat() on filehandle %s", GvENAME(gv));
2813 } else if (PL_laststype != OP_LSTAT)
2814 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2818 if (gv != PL_defgv) {
2819 PL_laststype = OP_STAT;
2821 sv_setpv(PL_statname, "");
2822 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2823 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2825 if (PL_laststatval < 0) {
2826 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2827 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2833 if (SvTYPE(sv) == SVt_PVGV) {
2837 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2839 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2840 Perl_warner(aTHX_ packWARN(WARN_IO),
2841 "lstat() on filehandle %s", GvENAME(gv));
2844 sv_setpv(PL_statname, SvPV(sv,n_a));
2846 PL_laststype = PL_op->op_type;
2847 if (PL_op->op_type == OP_LSTAT)
2848 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2850 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2851 if (PL_laststatval < 0) {
2852 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2853 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2859 if (gimme != G_ARRAY) {
2860 if (gimme != G_VOID)
2861 XPUSHs(boolSV(max));
2867 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2868 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2869 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2870 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2871 #if Uid_t_size > IVSIZE
2872 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2874 # if Uid_t_sign <= 0
2875 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2877 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2880 #if Gid_t_size > IVSIZE
2881 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2883 # if Gid_t_sign <= 0
2884 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2886 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2889 #ifdef USE_STAT_RDEV
2890 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2892 PUSHs(sv_2mortal(newSVpvn("", 0)));
2894 #if Off_t_size > IVSIZE
2895 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2897 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2900 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2901 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2902 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2904 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2905 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2906 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2908 #ifdef USE_STAT_BLOCKS
2909 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2910 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2912 PUSHs(sv_2mortal(newSVpvn("", 0)));
2913 PUSHs(sv_2mortal(newSVpvn("", 0)));
2919 /* This macro is used by the stacked filetest operators :
2920 * if the previous filetest failed, short-circuit and pass its value.
2921 * Else, discard it from the stack and continue. --rgs
2923 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2924 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2925 else { (void)POPs; PUTBACK; } \
2932 STACKED_FTEST_CHECK;
2933 #if defined(HAS_ACCESS) && defined(R_OK)
2934 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2936 result = access(POPpx, R_OK);
2951 if (cando(S_IRUSR, 0, &PL_statcache))
2960 STACKED_FTEST_CHECK;
2961 #if defined(HAS_ACCESS) && defined(W_OK)
2962 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)) {
2992 result = access(POPpx, X_OK);
3007 if (cando(S_IXUSR, 0, &PL_statcache))
3016 STACKED_FTEST_CHECK;
3017 #ifdef PERL_EFF_ACCESS_R_OK
3018 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3020 result = PERL_EFF_ACCESS_R_OK(POPpx);
3035 if (cando(S_IRUSR, 1, &PL_statcache))
3044 STACKED_FTEST_CHECK;
3045 #ifdef PERL_EFF_ACCESS_W_OK
3046 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3048 result = PERL_EFF_ACCESS_W_OK(POPpx);
3063 if (cando(S_IWUSR, 1, &PL_statcache))
3072 STACKED_FTEST_CHECK;
3073 #ifdef PERL_EFF_ACCESS_X_OK
3074 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3076 result = PERL_EFF_ACCESS_X_OK(POPpx);
3091 if (cando(S_IXUSR, 1, &PL_statcache))
3100 STACKED_FTEST_CHECK;
3110 return pp_ftrowned();
3117 STACKED_FTEST_CHECK;
3122 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3132 STACKED_FTEST_CHECK;
3137 if (PL_statcache.st_size == 0)
3146 STACKED_FTEST_CHECK;
3151 #if Off_t_size > IVSIZE
3152 PUSHn(PL_statcache.st_size);
3154 PUSHi(PL_statcache.st_size);
3163 STACKED_FTEST_CHECK;
3168 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3176 STACKED_FTEST_CHECK;
3181 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3189 STACKED_FTEST_CHECK;
3194 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3202 STACKED_FTEST_CHECK;
3207 if (S_ISSOCK(PL_statcache.st_mode))
3216 STACKED_FTEST_CHECK;
3221 if (S_ISCHR(PL_statcache.st_mode))
3230 STACKED_FTEST_CHECK;
3235 if (S_ISBLK(PL_statcache.st_mode))
3244 STACKED_FTEST_CHECK;
3249 if (S_ISREG(PL_statcache.st_mode))
3258 STACKED_FTEST_CHECK;
3263 if (S_ISDIR(PL_statcache.st_mode))
3272 STACKED_FTEST_CHECK;
3277 if (S_ISFIFO(PL_statcache.st_mode))
3284 I32 result = my_lstat();
3288 if (S_ISLNK(PL_statcache.st_mode))
3298 STACKED_FTEST_CHECK;
3303 if (PL_statcache.st_mode & S_ISUID)
3314 STACKED_FTEST_CHECK;
3319 if (PL_statcache.st_mode & S_ISGID)
3330 STACKED_FTEST_CHECK;
3335 if (PL_statcache.st_mode & S_ISVTX)
3348 STACKED_FTEST_CHECK;
3350 if (PL_op->op_flags & OPf_REF)
3352 else if (isGV(TOPs))
3354 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3355 gv = (GV*)SvRV(POPs);
3357 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3359 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3360 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3361 else if (tmpsv && SvOK(tmpsv)) {
3363 char *tmps = SvPV(tmpsv, n_a);
3371 if (PerlLIO_isatty(fd))
3376 #if defined(atarist) /* this will work with atariST. Configure will
3377 make guesses for other systems. */
3378 # define FILE_base(f) ((f)->_base)
3379 # define FILE_ptr(f) ((f)->_ptr)
3380 # define FILE_cnt(f) ((f)->_cnt)
3381 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3391 register STDCHAR *s;
3398 STACKED_FTEST_CHECK;
3400 if (PL_op->op_flags & OPf_REF)
3402 else if (isGV(TOPs))
3404 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3405 gv = (GV*)SvRV(POPs);
3411 if (gv == PL_defgv) {
3413 io = GvIO(PL_statgv);
3416 goto really_filename;
3421 PL_laststatval = -1;
3422 sv_setpv(PL_statname, "");
3423 io = GvIO(PL_statgv);
3425 if (io && IoIFP(io)) {
3426 if (! PerlIO_has_base(IoIFP(io)))
3427 DIE(aTHX_ "-T and -B not implemented on filehandles");
3428 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3429 if (PL_laststatval < 0)
3431 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3432 if (PL_op->op_type == OP_FTTEXT)
3437 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3438 i = PerlIO_getc(IoIFP(io));
3440 (void)PerlIO_ungetc(IoIFP(io),i);
3442 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3444 len = PerlIO_get_bufsiz(IoIFP(io));
3445 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3446 /* sfio can have large buffers - limit to 512 */
3451 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3453 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3455 SETERRNO(EBADF,RMS_IFI);
3463 PL_laststype = OP_STAT;
3464 sv_setpv(PL_statname, SvPV(sv, n_a));
3465 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3466 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
3467 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3470 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3471 if (PL_laststatval < 0) {
3472 (void)PerlIO_close(fp);
3475 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3476 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3477 (void)PerlIO_close(fp);
3479 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3480 RETPUSHNO; /* special case NFS directories */
3481 RETPUSHYES; /* null file is anything */
3486 /* now scan s to look for textiness */
3487 /* XXX ASCII dependent code */
3489 #if defined(DOSISH) || defined(USEMYBINMODE)
3490 /* ignore trailing ^Z on short files */
3491 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3495 for (i = 0; i < len; i++, s++) {
3496 if (!*s) { /* null never allowed in text */
3501 else if (!(isPRINT(*s) || isSPACE(*s)))
3504 else if (*s & 128) {
3506 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3509 /* utf8 characters don't count as odd */
3510 if (UTF8_IS_START(*s)) {
3511 int ulen = UTF8SKIP(s);
3512 if (ulen < len - i) {
3514 for (j = 1; j < ulen; j++) {
3515 if (!UTF8_IS_CONTINUATION(s[j]))
3518 --ulen; /* loop does extra increment */
3528 *s != '\n' && *s != '\r' && *s != '\b' &&
3529 *s != '\t' && *s != '\f' && *s != 27)
3534 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3559 if( !tmps || !*tmps ) {
3560 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3561 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3563 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3568 deprecate("chdir('') or chdir(undef) as chdir()");
3569 tmps = SvPV(*svp, n_a);
3573 TAINT_PROPER("chdir");
3578 TAINT_PROPER("chdir");
3579 PUSHi( PerlDir_chdir(tmps) >= 0 );
3581 /* Clear the DEFAULT element of ENV so we'll get the new value
3583 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3591 dSP; dMARK; dTARGET;
3592 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3598 DIE(aTHX_ PL_no_func, "chown");
3608 TAINT_PROPER("chroot");
3609 PUSHi( chroot(tmps) >= 0 );
3612 DIE(aTHX_ PL_no_func, "chroot");
3618 dSP; dMARK; dTARGET;
3620 value = (I32)apply(PL_op->op_type, MARK, SP);
3628 dSP; dMARK; dTARGET;
3630 value = (I32)apply(PL_op->op_type, MARK, SP);
3638 dSP; dMARK; dTARGET;
3640 value = (I32)apply(PL_op->op_type, MARK, SP);
3652 char *tmps2 = POPpx;
3653 char *tmps = SvPV(TOPs, n_a);
3654 TAINT_PROPER("rename");
3656 anum = PerlLIO_rename(tmps, tmps2);
3658 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3659 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3662 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3663 (void)UNLINK(tmps2);
3664 if (!(anum = link(tmps, tmps2)))
3665 anum = UNLINK(tmps);
3678 char *tmps2 = POPpx;
3679 char *tmps = SvPV(TOPs, n_a);
3680 TAINT_PROPER("link");
3681 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3684 DIE(aTHX_ PL_no_func, "link");
3693 char *tmps2 = POPpx;
3694 char *tmps = SvPV(TOPs, n_a);
3695 TAINT_PROPER("symlink");
3696 SETi( symlink(tmps, tmps2) >= 0 );
3699 DIE(aTHX_ PL_no_func, "symlink");
3709 char buf[MAXPATHLEN];
3713 #ifndef INCOMPLETE_TAINTS
3717 len = readlink(tmps, buf, sizeof(buf) - 1);
3725 RETSETUNDEF; /* just pretend it's a normal file */
3729 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3731 S_dooneliner(pTHX_ char *cmd, char *filename)
3733 char *save_filename = filename;
3739 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3740 strcpy(cmdline, cmd);
3741 strcat(cmdline, " ");
3742 for (s = cmdline + strlen(cmdline); *filename; ) {
3747 myfp = PerlProc_popen(cmdline, "r");
3751 SV *tmpsv = sv_newmortal();
3752 /* Need to save/restore 'PL_rs' ?? */
3753 s = sv_gets(tmpsv, myfp, 0);
3754 (void)PerlProc_pclose(myfp);
3758 #ifdef HAS_SYS_ERRLIST
3763 /* you don't see this */
3765 #ifdef HAS_SYS_ERRLIST
3773 if (instr(s, errmsg)) {
3780 #define EACCES EPERM
3782 if (instr(s, "cannot make"))
3783 SETERRNO(EEXIST,RMS_FEX);
3784 else if (instr(s, "existing file"))
3785 SETERRNO(EEXIST,RMS_FEX);
3786 else if (instr(s, "ile exists"))
3787 SETERRNO(EEXIST,RMS_FEX);
3788 else if (instr(s, "non-exist"))
3789 SETERRNO(ENOENT,RMS_FNF);
3790 else if (instr(s, "does not exist"))
3791 SETERRNO(ENOENT,RMS_FNF);
3792 else if (instr(s, "not empty"))
3793 SETERRNO(EBUSY,SS_DEVOFFLINE);
3794 else if (instr(s, "cannot access"))
3795 SETERRNO(EACCES,RMS_PRV);
3797 SETERRNO(EPERM,RMS_PRV);
3800 else { /* some mkdirs return no failure indication */
3801 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3802 if (PL_op->op_type == OP_RMDIR)
3807 SETERRNO(EACCES,RMS_PRV); /* a guess */
3816 /* This macro removes trailing slashes from a directory name.
3817 * Different operating and file systems take differently to
3818 * trailing slashes. According to POSIX 1003.1 1996 Edition
3819 * any number of trailing slashes should be allowed.
3820 * Thusly we snip them away so that even non-conforming
3821 * systems are happy.
3822 * We should probably do this "filtering" for all
3823 * the functions that expect (potentially) directory names:
3824 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3825 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3827 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3828 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3831 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3832 (tmps) = savepvn((tmps), (len)); \
3852 TRIMSLASHES(tmps,len,copy);
3854 TAINT_PROPER("mkdir");
3856 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3858 SETi( dooneliner("mkdir", tmps) );
3859 oldumask = PerlLIO_umask(0);
3860 PerlLIO_umask(oldumask);
3861 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3875 TRIMSLASHES(tmps,len,copy);
3876 TAINT_PROPER("rmdir");
3878 SETi( PerlDir_rmdir(tmps) >= 0 );
3880 SETi( dooneliner("rmdir", tmps) );
3887 /* Directory calls. */
3891 #if defined(Direntry_t) && defined(HAS_READDIR)
3894 char *dirname = POPpx;
3896 register IO *io = GvIOn(gv);
3902 PerlDir_close(IoDIRP(io));
3903 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3909 SETERRNO(EBADF,RMS_DIR);
3912 DIE(aTHX_ PL_no_dir_func, "opendir");
3918 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3919 DIE(aTHX_ PL_no_dir_func, "readdir");
3921 #if !defined(I_DIRENT) && !defined(VMS)
3922 Direntry_t *readdir (DIR *);
3928 GV *gv = (GV *)POPs;
3929 register Direntry_t *dp;
3930 register IO *io = GvIOn(gv);
3932 if (!io || !IoDIRP(io))
3936 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3940 sv = newSVpvn(dp->d_name, dp->d_namlen);
3942 sv = newSVpv(dp->d_name, 0);
3944 #ifndef INCOMPLETE_TAINTS
3945 if (!(IoFLAGS(io) & IOf_UNTAINT))
3948 XPUSHs(sv_2mortal(sv));
3950 while (gimme == G_ARRAY);
3952 if (!dp && gimme != G_ARRAY)
3959 SETERRNO(EBADF,RMS_ISI);
3960 if (GIMME == G_ARRAY)
3969 #if defined(HAS_TELLDIR) || defined(telldir)
3971 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3972 /* XXX netbsd still seemed to.
3973 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3974 --JHI 1999-Feb-02 */
3975 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3976 long telldir (DIR *);
3979 register IO *io = GvIOn(gv);
3981 if (!io || !IoDIRP(io))
3984 PUSHi( PerlDir_tell(IoDIRP(io)) );
3988 SETERRNO(EBADF,RMS_ISI);
3991 DIE(aTHX_ PL_no_dir_func, "telldir");
3997 #if defined(HAS_SEEKDIR) || defined(seekdir)
4001 register IO *io = GvIOn(gv);
4003 if (!io || !IoDIRP(io))
4006 (void)PerlDir_seek(IoDIRP(io), along);
4011 SETERRNO(EBADF,RMS_ISI);
4014 DIE(aTHX_ PL_no_dir_func, "seekdir");
4020 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4023 register IO *io = GvIOn(gv);
4025 if (!io || !IoDIRP(io))
4028 (void)PerlDir_rewind(IoDIRP(io));
4032 SETERRNO(EBADF,RMS_ISI);
4035 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4041 #if defined(Direntry_t) && defined(HAS_READDIR)
4044 register IO *io = GvIOn(gv);
4046 if (!io || !IoDIRP(io))
4049 #ifdef VOID_CLOSEDIR
4050 PerlDir_close(IoDIRP(io));
4052 if (PerlDir_close(IoDIRP(io)) < 0) {
4053 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4062 SETERRNO(EBADF,RMS_IFI);
4065 DIE(aTHX_ PL_no_dir_func, "closedir");
4069 /* Process control. */
4079 PERL_FLUSHALL_FOR_CHILD;
4080 childpid = PerlProc_fork();
4085 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4086 SvREADONLY_off(GvSV(tmpgv));
4087 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4088 SvREADONLY_on(GvSV(tmpgv));
4090 #ifdef THREADS_HAVE_PIDS
4091 PL_ppid = (IV)getppid();
4093 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4098 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4103 PERL_FLUSHALL_FOR_CHILD;
4104 childpid = PerlProc_fork();
4110 DIE(aTHX_ PL_no_func, "fork");
4117 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4122 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4123 childpid = wait4pid(-1, &argflags, 0);
4125 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4130 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4131 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4132 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4134 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4139 DIE(aTHX_ PL_no_func, "wait");
4145 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4154 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4155 result = wait4pid(pid, &argflags, optype);
4157 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4162 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4163 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4164 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4166 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4171 DIE(aTHX_ PL_no_func, "waitpid");
4177 dSP; dMARK; dORIGMARK; dTARGET;
4185 while (++MARK <= SP) {
4186 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4191 TAINT_PROPER("system");
4193 PERL_FLUSHALL_FOR_CHILD;
4194 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4199 if (PerlProc_pipe(pp) >= 0)
4201 while ((childpid = PerlProc_fork()) == -1) {
4202 if (errno != EAGAIN) {
4207 PerlLIO_close(pp[0]);
4208 PerlLIO_close(pp[1]);
4215 Sigsave_t ihand,qhand; /* place to save signals during system() */
4219 PerlLIO_close(pp[1]);
4221 rsignal_save(SIGINT, SIG_IGN, &ihand);
4222 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4225 result = wait4pid(childpid, &status, 0);
4226 } while (result == -1 && errno == EINTR);
4228 (void)rsignal_restore(SIGINT, &ihand);
4229 (void)rsignal_restore(SIGQUIT, &qhand);
4231 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4232 do_execfree(); /* free any memory child malloced on fork */
4238 while (n < sizeof(int)) {
4239 n1 = PerlLIO_read(pp[0],
4240 (void*)(((char*)&errkid)+n),
4246 PerlLIO_close(pp[0]);
4247 if (n) { /* Error */
4248 if (n != sizeof(int))
4249 DIE(aTHX_ "panic: kid popen errno read");
4250 errno = errkid; /* Propagate errno from kid */
4251 STATUS_CURRENT = -1;
4254 PUSHi(STATUS_CURRENT);
4258 PerlLIO_close(pp[0]);
4259 #if defined(HAS_FCNTL) && defined(F_SETFD)
4260 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4263 if (PL_op->op_flags & OPf_STACKED) {
4264 SV *really = *++MARK;
4265 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4267 else if (SP - MARK != 1)
4268 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4270 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4274 #else /* ! FORK or VMS or OS/2 */
4277 if (PL_op->op_flags & OPf_STACKED) {
4278 SV *really = *++MARK;
4279 # if defined(WIN32) || defined(OS2)
4280 value = (I32)do_aspawn(really, MARK, SP);
4282 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4285 else if (SP - MARK != 1) {
4286 # if defined(WIN32) || defined(OS2)
4287 value = (I32)do_aspawn(Nullsv, MARK, SP);
4289 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4293 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4295 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4297 STATUS_NATIVE_SET(value);
4300 PUSHi(result ? value : STATUS_CURRENT);
4301 #endif /* !FORK or VMS */
4307 dSP; dMARK; dORIGMARK; dTARGET;
4313 while (++MARK <= SP) {
4314 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4319 TAINT_PROPER("exec");
4321 PERL_FLUSHALL_FOR_CHILD;
4322 if (PL_op->op_flags & OPf_STACKED) {
4323 SV *really = *++MARK;
4324 value = (I32)do_aexec(really, MARK, SP);
4326 else if (SP - MARK != 1)
4328 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4332 (void ) do_aspawn(Nullsv, MARK, SP);
4336 value = (I32)do_aexec(Nullsv, MARK, SP);
4341 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4344 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4347 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4360 dSP; dMARK; dTARGET;
4362 value = (I32)apply(PL_op->op_type, MARK, SP);
4367 DIE(aTHX_ PL_no_func, "kill");
4375 # ifdef THREADS_HAVE_PIDS
4378 XPUSHi( getppid() );
4382 DIE(aTHX_ PL_no_func, "getppid");
4398 pgrp = (I32)BSD_GETPGRP(pid);
4400 if (pid != 0 && pid != PerlProc_getpid())
4401 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4407 DIE(aTHX_ PL_no_func, "getpgrp()");
4426 TAINT_PROPER("setpgrp");
4428 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4430 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4431 || (pid != 0 && pid != PerlProc_getpid()))
4433 DIE(aTHX_ "setpgrp can't take arguments");
4435 SETi( setpgrp() >= 0 );
4436 #endif /* USE_BSDPGRP */
4439 DIE(aTHX_ PL_no_func, "setpgrp()");
4445 #ifdef HAS_GETPRIORITY
4449 SETi( getpriority(which, who) );
4452 DIE(aTHX_ PL_no_func, "getpriority()");
4458 #ifdef HAS_SETPRIORITY
4463 TAINT_PROPER("setpriority");
4464 SETi( setpriority(which, who, niceval) >= 0 );
4467 DIE(aTHX_ PL_no_func, "setpriority()");
4477 XPUSHn( time(Null(Time_t*)) );
4479 XPUSHi( time(Null(Time_t*)) );
4490 (void)PerlProc_times(&PL_timesbuf);
4492 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4493 /* struct tms, though same data */
4497 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4498 if (GIMME == G_ARRAY) {
4499 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4500 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4501 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4507 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4509 if (GIMME == G_ARRAY) {
4510 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4511 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4512 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4516 DIE(aTHX_ "times not implemented");
4518 #endif /* HAS_TIMES */
4530 const struct tm *tmbuf;
4531 static const char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4532 static const char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4533 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4539 when = (Time_t)SvNVx(POPs);
4541 when = (Time_t)SvIVx(POPs);
4544 if (PL_op->op_type == OP_LOCALTIME)
4545 tmbuf = localtime(&when);
4547 tmbuf = gmtime(&when);
4549 if (GIMME != G_ARRAY) {
4555 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4556 dayname[tmbuf->tm_wday],
4557 monname[tmbuf->tm_mon],
4562 tmbuf->tm_year + 1900);
4563 PUSHs(sv_2mortal(tsv));
4568 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4569 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4570 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4571 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4572 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4573 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4574 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4575 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4576 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4587 anum = alarm((unsigned int)anum);
4594 DIE(aTHX_ PL_no_func, "alarm");
4605 (void)time(&lasttime);
4610 PerlProc_sleep((unsigned int)duration);
4613 XPUSHi(when - lasttime);
4617 /* Shared memory. */
4631 return pp_shmwrite();
4636 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4637 dSP; dMARK; dTARGET;
4638 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4647 /* Message passing. */
4661 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4662 dSP; dMARK; dTARGET;
4663 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4674 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4675 dSP; dMARK; dTARGET;
4676 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4689 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4690 dSP; dMARK; dTARGET;
4691 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4698 DIE(aTHX_ "System V IPC is not implemented on this machine");
4704 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4705 dSP; dMARK; dTARGET;
4706 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4714 PUSHp(zero_but_true, ZBTLEN);
4724 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4725 dSP; dMARK; dTARGET;
4726 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4735 /* Get system info. */
4739 #ifdef HAS_GETHOSTBYNAME
4740 return pp_ghostent();
4742 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4748 #ifdef HAS_GETHOSTBYADDR
4749 return pp_ghostent();
4751 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4757 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4759 I32 which = PL_op->op_type;
4760 register char **elem;
4762 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4763 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4764 struct hostent *gethostbyname(Netdb_name_t);
4765 struct hostent *gethostent(void);
4767 struct hostent *hent;
4772 if (which == OP_GHBYNAME) {
4773 #ifdef HAS_GETHOSTBYNAME
4774 char* name = POPpbytex;
4775 hent = PerlSock_gethostbyname(name);
4777 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4780 else if (which == OP_GHBYADDR) {
4781 #ifdef HAS_GETHOSTBYADDR
4782 int addrtype = POPi;
4785 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4787 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4789 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4793 #ifdef HAS_GETHOSTENT
4794 hent = PerlSock_gethostent();
4796 DIE(aTHX_ PL_no_sock_func, "gethostent");
4799 #ifdef HOST_NOT_FOUND
4801 #ifdef USE_REENTRANT_API
4802 # ifdef USE_GETHOSTENT_ERRNO
4803 h_errno = PL_reentrant_buffer->_gethostent_errno;
4806 STATUS_NATIVE_SET(h_errno);
4810 if (GIMME != G_ARRAY) {
4811 PUSHs(sv = sv_newmortal());
4813 if (which == OP_GHBYNAME) {
4815 sv_setpvn(sv, hent->h_addr, hent->h_length);
4818 sv_setpv(sv, (char*)hent->h_name);
4824 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4825 sv_setpv(sv, (char*)hent->h_name);
4826 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4827 for (elem = hent->h_aliases; elem && *elem; elem++) {
4828 sv_catpv(sv, *elem);
4830 sv_catpvn(sv, " ", 1);
4832 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4833 sv_setiv(sv, (IV)hent->h_addrtype);
4834 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4835 len = hent->h_length;
4836 sv_setiv(sv, (IV)len);
4838 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4839 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4840 sv_setpvn(sv, *elem, len);
4843 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4845 sv_setpvn(sv, hent->h_addr, len);
4850 DIE(aTHX_ PL_no_sock_func, "gethostent");
4856 #ifdef HAS_GETNETBYNAME
4857 return pp_gnetent();
4859 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4865 #ifdef HAS_GETNETBYADDR
4866 return pp_gnetent();
4868 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4874 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4876 I32 which = PL_op->op_type;
4877 register char **elem;
4879 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4880 struct netent *getnetbyaddr(Netdb_net_t, int);
4881 struct netent *getnetbyname(Netdb_name_t);
4882 struct netent *getnetent(void);
4884 struct netent *nent;
4887 if (which == OP_GNBYNAME){
4888 #ifdef HAS_GETNETBYNAME
4889 char *name = POPpbytex;
4890 nent = PerlSock_getnetbyname(name);
4892 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4895 else if (which == OP_GNBYADDR) {
4896 #ifdef HAS_GETNETBYADDR
4897 int addrtype = POPi;
4898 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4899 nent = PerlSock_getnetbyaddr(addr, addrtype);
4901 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4905 #ifdef HAS_GETNETENT
4906 nent = PerlSock_getnetent();
4908 DIE(aTHX_ PL_no_sock_func, "getnetent");
4911 #ifdef HOST_NOT_FOUND
4913 #ifdef USE_REENTRANT_API
4914 # ifdef USE_GETNETENT_ERRNO
4915 h_errno = PL_reentrant_buffer->_getnetent_errno;
4918 STATUS_NATIVE_SET(h_errno);
4923 if (GIMME != G_ARRAY) {
4924 PUSHs(sv = sv_newmortal());
4926 if (which == OP_GNBYNAME)
4927 sv_setiv(sv, (IV)nent->n_net);
4929 sv_setpv(sv, nent->n_name);
4935 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4936 sv_setpv(sv, nent->n_name);
4937 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4938 for (elem = nent->n_aliases; elem && *elem; elem++) {
4939 sv_catpv(sv, *elem);
4941 sv_catpvn(sv, " ", 1);
4943 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4944 sv_setiv(sv, (IV)nent->n_addrtype);
4945 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4946 sv_setiv(sv, (IV)nent->n_net);
4951 DIE(aTHX_ PL_no_sock_func, "getnetent");
4957 #ifdef HAS_GETPROTOBYNAME
4958 return pp_gprotoent();
4960 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4966 #ifdef HAS_GETPROTOBYNUMBER
4967 return pp_gprotoent();
4969 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4975 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4977 I32 which = PL_op->op_type;
4978 register char **elem;
4980 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4981 struct protoent *getprotobyname(Netdb_name_t);
4982 struct protoent *getprotobynumber(int);
4983 struct protoent *getprotoent(void);
4985 struct protoent *pent;
4988 if (which == OP_GPBYNAME) {
4989 #ifdef HAS_GETPROTOBYNAME
4990 char* name = POPpbytex;
4991 pent = PerlSock_getprotobyname(name);
4993 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4996 else if (which == OP_GPBYNUMBER) {
4997 #ifdef HAS_GETPROTOBYNUMBER
4999 pent = PerlSock_getprotobynumber(number);
5001 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5005 #ifdef HAS_GETPROTOENT
5006 pent = PerlSock_getprotoent();
5008 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5012 if (GIMME != G_ARRAY) {
5013 PUSHs(sv = sv_newmortal());
5015 if (which == OP_GPBYNAME)
5016 sv_setiv(sv, (IV)pent->p_proto);
5018 sv_setpv(sv, pent->p_name);
5024 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5025 sv_setpv(sv, pent->p_name);
5026 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5027 for (elem = pent->p_aliases; elem && *elem; elem++) {
5028 sv_catpv(sv, *elem);
5030 sv_catpvn(sv, " ", 1);
5032 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5033 sv_setiv(sv, (IV)pent->p_proto);
5038 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5044 #ifdef HAS_GETSERVBYNAME
5045 return pp_gservent();
5047 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5053 #ifdef HAS_GETSERVBYPORT
5054 return pp_gservent();
5056 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5062 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5064 I32 which = PL_op->op_type;
5065 register char **elem;
5067 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5068 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5069 struct servent *getservbyport(int, Netdb_name_t);
5070 struct servent *getservent(void);
5072 struct servent *sent;
5075 if (which == OP_GSBYNAME) {
5076 #ifdef HAS_GETSERVBYNAME
5077 char *proto = POPpbytex;
5078 char *name = POPpbytex;
5080 if (proto && !*proto)
5083 sent = PerlSock_getservbyname(name, proto);
5085 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5088 else if (which == OP_GSBYPORT) {
5089 #ifdef HAS_GETSERVBYPORT
5090 char *proto = POPpbytex;
5091 unsigned short port = (unsigned short)POPu;
5093 if (proto && !*proto)
5097 port = PerlSock_htons(port);
5099 sent = PerlSock_getservbyport(port, proto);
5101 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5105 #ifdef HAS_GETSERVENT
5106 sent = PerlSock_getservent();
5108 DIE(aTHX_ PL_no_sock_func, "getservent");
5112 if (GIMME != G_ARRAY) {
5113 PUSHs(sv = sv_newmortal());
5115 if (which == OP_GSBYNAME) {
5117 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5119 sv_setiv(sv, (IV)(sent->s_port));
5123 sv_setpv(sv, sent->s_name);
5129 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5130 sv_setpv(sv, sent->s_name);
5131 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5132 for (elem = sent->s_aliases; elem && *elem; elem++) {
5133 sv_catpv(sv, *elem);
5135 sv_catpvn(sv, " ", 1);
5137 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5139 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5141 sv_setiv(sv, (IV)(sent->s_port));
5143 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5144 sv_setpv(sv, sent->s_proto);
5149 DIE(aTHX_ PL_no_sock_func, "getservent");
5155 #ifdef HAS_SETHOSTENT
5157 PerlSock_sethostent(TOPi);
5160 DIE(aTHX_ PL_no_sock_func, "sethostent");
5166 #ifdef HAS_SETNETENT
5168 PerlSock_setnetent(TOPi);
5171 DIE(aTHX_ PL_no_sock_func, "setnetent");
5177 #ifdef HAS_SETPROTOENT
5179 PerlSock_setprotoent(TOPi);
5182 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5188 #ifdef HAS_SETSERVENT
5190 PerlSock_setservent(TOPi);
5193 DIE(aTHX_ PL_no_sock_func, "setservent");
5199 #ifdef HAS_ENDHOSTENT
5201 PerlSock_endhostent();
5205 DIE(aTHX_ PL_no_sock_func, "endhostent");
5211 #ifdef HAS_ENDNETENT
5213 PerlSock_endnetent();
5217 DIE(aTHX_ PL_no_sock_func, "endnetent");
5223 #ifdef HAS_ENDPROTOENT
5225 PerlSock_endprotoent();
5229 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5235 #ifdef HAS_ENDSERVENT
5237 PerlSock_endservent();
5241 DIE(aTHX_ PL_no_sock_func, "endservent");
5250 DIE(aTHX_ PL_no_func, "getpwnam");
5259 DIE(aTHX_ PL_no_func, "getpwuid");
5267 I32 which = PL_op->op_type;
5270 struct passwd *pwent = NULL;
5272 * We currently support only the SysV getsp* shadow password interface.
5273 * The interface is declared in <shadow.h> and often one needs to link
5274 * with -lsecurity or some such.
5275 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5278 * AIX getpwnam() is clever enough to return the encrypted password
5279 * only if the caller (euid?) is root.
5281 * There are at least three other shadow password APIs. Many platforms
5282 * seem to contain more than one interface for accessing the shadow
5283 * password databases, possibly for compatibility reasons.
5284 * The getsp*() is by far he simplest one, the other two interfaces
5285 * are much more complicated, but also very similar to each other.
5290 * struct pr_passwd *getprpw*();
5291 * The password is in
5292 * char getprpw*(...).ufld.fd_encrypt[]
5293 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5298 * struct es_passwd *getespw*();
5299 * The password is in
5300 * char *(getespw*(...).ufld.fd_encrypt)
5301 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5304 * struct userpw *getuserpw();
5305 * The password is in
5306 * char *(getuserpw(...)).spw_upw_passwd
5307 * (but the de facto standard getpwnam() should work okay)
5309 * Mention I_PROT here so that Configure probes for it.
5311 * In HP-UX for getprpw*() the manual page claims that one should include
5312 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5313 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5314 * and pp_sys.c already includes <shadow.h> if there is such.
5316 * Note that <sys/security.h> is already probed for, but currently
5317 * it is only included in special cases.
5319 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5320 * be preferred interface, even though also the getprpw*() interface
5321 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5322 * One also needs to call set_auth_parameters() in main() before
5323 * doing anything else, whether one is using getespw*() or getprpw*().
5325 * Note that accessing the shadow databases can be magnitudes
5326 * slower than accessing the standard databases.
5331 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5332 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5333 * the pw_comment is left uninitialized. */
5334 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5340 char* name = POPpbytex;
5341 pwent = getpwnam(name);
5347 pwent = getpwuid(uid);
5351 # ifdef HAS_GETPWENT
5353 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5354 if (pwent) pwent = getpwnam(pwent->pw_name);
5357 DIE(aTHX_ PL_no_func, "getpwent");
5363 if (GIMME != G_ARRAY) {
5364 PUSHs(sv = sv_newmortal());
5366 if (which == OP_GPWNAM)
5367 # if Uid_t_sign <= 0
5368 sv_setiv(sv, (IV)pwent->pw_uid);
5370 sv_setuv(sv, (UV)pwent->pw_uid);
5373 sv_setpv(sv, pwent->pw_name);
5379 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5380 sv_setpv(sv, pwent->pw_name);
5382 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5384 /* If we have getspnam(), we try to dig up the shadow
5385 * password. If we are underprivileged, the shadow
5386 * interface will set the errno to EACCES or similar,
5387 * and return a null pointer. If this happens, we will
5388 * use the dummy password (usually "*" or "x") from the
5389 * standard password database.
5391 * In theory we could skip the shadow call completely
5392 * if euid != 0 but in practice we cannot know which
5393 * security measures are guarding the shadow databases
5394 * on a random platform.
5396 * Resist the urge to use additional shadow interfaces.
5397 * Divert the urge to writing an extension instead.
5400 /* Some AIX setups falsely(?) detect some getspnam(), which
5401 * has a different API than the Solaris/IRIX one. */
5402 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5404 struct spwd *spwent;
5405 int saverrno; /* Save and restore errno so that
5406 * underprivileged attempts seem
5407 * to have never made the unsccessful
5408 * attempt to retrieve the shadow password. */
5411 spwent = getspnam(pwent->pw_name);
5413 if (spwent && spwent->sp_pwdp)
5414 sv_setpv(sv, spwent->sp_pwdp);
5418 if (!SvPOK(sv)) /* Use the standard password, then. */
5419 sv_setpv(sv, pwent->pw_passwd);
5422 # ifndef INCOMPLETE_TAINTS
5423 /* passwd is tainted because user himself can diddle with it.
5424 * admittedly not much and in a very limited way, but nevertheless. */
5428 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5429 # if Uid_t_sign <= 0
5430 sv_setiv(sv, (IV)pwent->pw_uid);
5432 sv_setuv(sv, (UV)pwent->pw_uid);
5435 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5436 # if Uid_t_sign <= 0
5437 sv_setiv(sv, (IV)pwent->pw_gid);
5439 sv_setuv(sv, (UV)pwent->pw_gid);
5441 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5442 * because of the poor interface of the Perl getpw*(),
5443 * not because there's some standard/convention saying so.
5444 * A better interface would have been to return a hash,
5445 * but we are accursed by our history, alas. --jhi. */
5446 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5448 sv_setiv(sv, (IV)pwent->pw_change);
5451 sv_setiv(sv, (IV)pwent->pw_quota);
5454 sv_setpv(sv, pwent->pw_age);
5459 /* pw_class and pw_comment are mutually exclusive--.
5460 * see the above note for pw_change, pw_quota, and pw_age. */
5461 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5463 sv_setpv(sv, pwent->pw_class);
5466 sv_setpv(sv, pwent->pw_comment);
5470 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5472 sv_setpv(sv, pwent->pw_gecos);
5474 # ifndef INCOMPLETE_TAINTS
5475 /* pw_gecos is tainted because user himself can diddle with it. */
5479 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5480 sv_setpv(sv, pwent->pw_dir);
5482 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5483 sv_setpv(sv, pwent->pw_shell);
5484 # ifndef INCOMPLETE_TAINTS
5485 /* pw_shell is tainted because user himself can diddle with it. */
5490 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5491 sv_setiv(sv, (IV)pwent->pw_expire);
5496 DIE(aTHX_ PL_no_func, "getpwent");
5502 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5507 DIE(aTHX_ PL_no_func, "setpwent");
5513 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5518 DIE(aTHX_ PL_no_func, "endpwent");
5527 DIE(aTHX_ PL_no_func, "getgrnam");
5536 DIE(aTHX_ PL_no_func, "getgrgid");
5544 I32 which = PL_op->op_type;
5545 register char **elem;
5547 struct group *grent;
5550 if (which == OP_GGRNAM) {
5551 char* name = POPpbytex;
5552 grent = (struct group *)getgrnam(name);
5554 else if (which == OP_GGRGID) {
5556 grent = (struct group *)getgrgid(gid);
5560 grent = (struct group *)getgrent();
5562 DIE(aTHX_ PL_no_func, "getgrent");
5566 if (GIMME != G_ARRAY) {
5567 PUSHs(sv = sv_newmortal());
5569 if (which == OP_GGRNAM)
5570 sv_setiv(sv, (IV)grent->gr_gid);
5572 sv_setpv(sv, grent->gr_name);
5578 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5579 sv_setpv(sv, grent->gr_name);
5581 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5583 sv_setpv(sv, grent->gr_passwd);
5586 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5587 sv_setiv(sv, (IV)grent->gr_gid);
5589 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5590 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5591 /* In UNICOS/mk (_CRAYMPP) the multithreading
5592 * versions (getgrnam_r, getgrgid_r)
5593 * seem to return an illegal pointer
5594 * as the group members list, gr_mem.
5595 * getgrent() doesn't even have a _r version
5596 * but the gr_mem is poisonous anyway.
5597 * So yes, you cannot get the list of group
5598 * members if building multithreaded in UNICOS/mk. */
5599 for (elem = grent->gr_mem; elem && *elem; elem++) {
5600 sv_catpv(sv, *elem);
5602 sv_catpvn(sv, " ", 1);
5609 DIE(aTHX_ PL_no_func, "getgrent");
5615 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5620 DIE(aTHX_ PL_no_func, "setgrent");
5626 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5631 DIE(aTHX_ PL_no_func, "endgrent");
5641 if (!(tmps = PerlProc_getlogin()))
5643 PUSHp(tmps, strlen(tmps));
5646 DIE(aTHX_ PL_no_func, "getlogin");
5650 /* Miscellaneous. */
5655 dSP; dMARK; dORIGMARK; dTARGET;
5656 register I32 items = SP - MARK;
5657 unsigned long a[20];
5663 while (++MARK <= SP) {
5664 if (SvTAINTED(*MARK)) {
5670 TAINT_PROPER("syscall");
5673 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5674 * or where sizeof(long) != sizeof(char*). But such machines will
5675 * not likely have syscall implemented either, so who cares?
5677 while (++MARK <= SP) {
5678 if (SvNIOK(*MARK) || !i)
5679 a[i++] = SvIV(*MARK);
5680 else if (*MARK == &PL_sv_undef)
5683 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5689 DIE(aTHX_ "Too many args to syscall");
5691 DIE(aTHX_ "Too few args to syscall");
5693 retval = syscall(a[0]);
5696 retval = syscall(a[0],a[1]);
5699 retval = syscall(a[0],a[1],a[2]);
5702 retval = syscall(a[0],a[1],a[2],a[3]);
5705 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5708 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5711 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5714 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5718 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5721 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5724 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5728 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5732 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5736 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5737 a[10],a[11],a[12],a[13]);
5739 #endif /* atarist */
5745 DIE(aTHX_ PL_no_func, "syscall");
5749 #ifdef FCNTL_EMULATE_FLOCK
5751 /* XXX Emulate flock() with fcntl().
5752 What's really needed is a good file locking module.
5756 fcntl_emulate_flock(int fd, int operation)
5760 switch (operation & ~LOCK_NB) {
5762 flock.l_type = F_RDLCK;
5765 flock.l_type = F_WRLCK;
5768 flock.l_type = F_UNLCK;
5774 flock.l_whence = SEEK_SET;
5775 flock.l_start = flock.l_len = (Off_t)0;
5777 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5780 #endif /* FCNTL_EMULATE_FLOCK */
5782 #ifdef LOCKF_EMULATE_FLOCK
5784 /* XXX Emulate flock() with lockf(). This is just to increase
5785 portability of scripts. The calls are not completely
5786 interchangeable. What's really needed is a good file
5790 /* The lockf() constants might have been defined in <unistd.h>.
5791 Unfortunately, <unistd.h> causes troubles on some mixed
5792 (BSD/POSIX) systems, such as SunOS 4.1.3.
5794 Further, the lockf() constants aren't POSIX, so they might not be
5795 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5796 just stick in the SVID values and be done with it. Sigh.
5800 # define F_ULOCK 0 /* Unlock a previously locked region */
5803 # define F_LOCK 1 /* Lock a region for exclusive use */
5806 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5809 # define F_TEST 3 /* Test a region for other processes locks */
5813 lockf_emulate_flock(int fd, int operation)
5819 /* flock locks entire file so for lockf we need to do the same */
5821 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5822 if (pos > 0) /* is seekable and needs to be repositioned */
5823 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5824 pos = -1; /* seek failed, so don't seek back afterwards */
5827 switch (operation) {
5829 /* LOCK_SH - get a shared lock */
5831 /* LOCK_EX - get an exclusive lock */
5833 i = lockf (fd, F_LOCK, 0);
5836 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5837 case LOCK_SH|LOCK_NB:
5838 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5839 case LOCK_EX|LOCK_NB:
5840 i = lockf (fd, F_TLOCK, 0);
5842 if ((errno == EAGAIN) || (errno == EACCES))
5843 errno = EWOULDBLOCK;
5846 /* LOCK_UN - unlock (non-blocking is a no-op) */
5848 case LOCK_UN|LOCK_NB:
5849 i = lockf (fd, F_ULOCK, 0);
5852 /* Default - can't decipher operation */
5859 if (pos > 0) /* need to restore position of the handle */
5860 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5865 #endif /* LOCKF_EMULATE_FLOCK */
5869 * c-indentation-style: bsd
5871 * indent-tabs-mode: t
5874 * vim: shiftwidth=4: