3 * Copyright (c) 1991-1999, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
20 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
27 extern "C" int syscall(unsigned long,...);
32 # include <sys/wait.h>
36 # include <sys/resource.h>
39 #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
40 # include <sys/socket.h>
46 # include <net/errno.h>
53 #include <sys/select.h>
57 /* XXX Configure test needed.
58 h_errno might not be a simple 'int', especially for multi-threaded
59 applications, see "extern int errno in perl.h". Creating such
60 a test requires taking into account the differences between
61 compiling multithreaded and singlethreaded ($ccflags et al).
62 HOST_NOT_FOUND is typically defined in <netdb.h>.
64 #if defined(HOST_NOT_FOUND) && !defined(h_errno)
72 struct passwd *getpwnam _((char *));
73 struct passwd *getpwuid _((Uid_t));
76 struct passwd *getpwent _((void));
84 struct group *getgrnam _((char *));
85 struct group *getgrgid _((Gid_t));
88 struct group *getgrent _((void));
93 # if defined(_MSC_VER) || defined(__MINGW32__)
94 # include <sys/utime.h>
103 #include <sys/file.h>
106 /* Put this after #includes because fork and vfork prototypes may conflict. */
111 /* Put this after #includes because <unistd.h> defines _XOPEN_*. */
113 # if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED) || defined(__GLIBC__)
114 # define Sock_size_t Size_t
116 # define Sock_size_t int
120 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
121 static int dooneliner _((char *cmd, char *filename));
125 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
128 # define my_chsize PerlLIO_chsize
133 #else /* no flock() */
135 /* fcntl.h might not have been included, even if it exists, because
136 the current Configure only sets I_FCNTL if it's needed to pick up
137 the *_OK constants. Make sure it has been included before testing
138 the fcntl() locking constants. */
139 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
143 # if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
144 # define FLOCK fcntl_emulate_flock
145 # define FCNTL_EMULATE_FLOCK
146 # else /* no flock() or fcntl(F_SETLK,...) */
148 # define FLOCK lockf_emulate_flock
149 # define LOCKF_EMULATE_FLOCK
151 # endif /* no flock() or fcntl(F_SETLK,...) */
154 static int FLOCK _((int, int));
157 * These are the flock() constants. Since this sytems doesn't have
158 * flock(), the values of the constants are probably not available.
172 # endif /* emulating flock() */
174 #endif /* no flock() */
177 static char zero_but_true[ZBTLEN + 1] = "0 but true";
179 #if defined(I_SYS_ACCESS) && !defined(R_OK)
180 # include <sys/access.h>
183 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
184 #undef PERL_EFF_ACCESS_W_OK
185 #undef PERL_EFF_ACCESS_X_OK
187 /* F_OK unused: if stat() cannot find it... */
189 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
190 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
191 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
192 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
193 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
196 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
197 # if defined(I_SYS_SECURITY)
198 # include <sys/security.h>
200 /* XXX Configure test needed for eaccess */
203 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
204 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
205 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
208 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
209 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
210 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
214 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
216 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
217 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
218 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
221 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
222 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
223 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
226 emulate_eaccess (const char* path, int mode) {
227 Uid_t ruid = getuid();
228 Uid_t euid = geteuid();
229 Gid_t rgid = getgid();
230 Gid_t egid = getegid();
233 MUTEX_LOCK(&PL_cred_mutex);
234 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
235 croak("switching effective uid is not implemented");
238 if (setreuid(euid, ruid))
241 if (setresuid(euid, ruid, (Uid_t)-1))
244 croak("entering effective uid failed");
247 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
248 croak("switching effective gid is not implemented");
251 if (setregid(egid, rgid))
254 if (setresgid(egid, rgid, (Gid_t)-1))
257 croak("entering effective gid failed");
260 res = access(path, mode);
263 if (setreuid(ruid, euid))
266 if (setresuid(ruid, euid, (Uid_t)-1))
269 croak("leaving effective uid failed");
272 if (setregid(rgid, egid))
275 if (setresgid(rgid, egid, (Gid_t)-1))
278 croak("leaving effective gid failed");
279 MUTEX_UNLOCK(&PL_cred_mutex);
283 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
284 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
285 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
288 #if !defined(PERL_EFF_ACCESS_R_OK)
290 emulate_eaccess (const char* path, int mode) {
291 croak("switching effective uid is not implemented");
306 fp = PerlProc_popen(tmps, "r");
308 if (gimme == G_VOID) {
310 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
314 else if (gimme == G_SCALAR) {
315 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
316 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
327 if (sv_gets(sv, fp, 0) == Nullch) {
331 XPUSHs(sv_2mortal(sv));
332 if (SvLEN(sv) - SvCUR(sv) > 20) {
333 SvLEN_set(sv, SvCUR(sv)+1);
334 Renew(SvPVX(sv), SvLEN(sv), char);
339 STATUS_NATIVE_SET(PerlProc_pclose(fp));
340 TAINT; /* "I believe that this is not gratuitous!" */
343 STATUS_NATIVE_SET(-1);
344 if (gimme == G_SCALAR)
354 tryAMAGICunTARGET(iter, -1);
361 * The external globbing program may use things we can't control,
362 * so for security reasons we must assume the worst.
365 taint_proper(PL_no_security, "glob");
369 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
370 PL_last_in_gv = (GV*)*PL_stack_sp--;
372 SAVESPTR(PL_rs); /* This is not permanent, either. */
373 PL_rs = sv_2mortal(newSVpvn("\000", 1));
376 *SvPVX(PL_rs) = '\n';
380 result = do_readline();
385 #if 0 /* XXX never used! */
389 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
390 return do_readline();
396 PL_last_in_gv = cGVOP->op_gv;
397 return do_readline();
406 if (SP - MARK != 1) {
408 do_join(TARG, &PL_sv_no, MARK, SP);
415 tmps = SvPV(tmpsv, len);
418 (void)SvUPGRADE(error, SVt_PV);
419 if (SvPOK(error) && SvCUR(error))
420 sv_catpv(error, "\t...caught");
422 tmps = SvPV(tmpsv, len);
425 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
438 if (SP - MARK != 1) {
440 do_join(TARG, &PL_sv_no, MARK, SP);
442 tmps = SvPV(tmpsv, len);
448 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
452 (void)SvUPGRADE(error, SVt_PV);
453 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
455 SvSetSV(error,tmpsv);
456 else if (sv_isobject(error)) {
457 HV *stash = SvSTASH(SvRV(error));
458 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
460 SV *file = sv_2mortal(newSVsv(GvSV(PL_curcop->cop_filegv)));
461 SV *line = sv_2mortal(newSViv(PL_curcop->cop_line));
468 perl_call_sv((SV*)GvCV(gv),
469 G_SCALAR|G_EVAL|G_KEEPERR);
470 sv_setsv(error,*PL_stack_sp--);
476 if (SvPOK(error) && SvCUR(error))
477 sv_catpv(error, "\t...propagated");
479 tmps = SvPV(tmpsv, len);
483 tmpsv = sv_2mortal(newSVpvn("Died", 4));
501 DIE(PL_no_usym, "filehandle");
506 DIE(PL_no_usym, "filehandle");
508 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
509 tmps = SvPV(sv, len);
510 if (do_open(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp))
511 PUSHi( (I32)PL_forkprocess );
512 else if (PL_forkprocess == 0) /* we are a new child */
530 if (mg = SvTIED_mg((SV*)gv, 'q')) {
532 XPUSHs(SvTIED_obj((SV*)gv, mg));
535 perl_call_method("CLOSE", G_SCALAR);
541 PUSHs(boolSV(do_close(gv, TRUE)));
561 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
562 DIE(PL_no_usym, "filehandle");
567 do_close(rgv, FALSE);
569 do_close(wgv, FALSE);
571 if (PerlProc_pipe(fd) < 0)
574 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
575 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
576 IoIFP(wstio) = IoOFP(wstio);
580 if (!IoIFP(rstio) || !IoOFP(wstio)) {
581 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
582 else PerlLIO_close(fd[0]);
583 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
584 else PerlLIO_close(fd[1]);
587 #if defined(HAS_FCNTL) && defined(F_SETFD)
588 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
589 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
596 DIE(PL_no_func, "pipe");
609 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
611 PUSHi(PerlIO_fileno(fp));
622 anum = PerlLIO_umask(0);
623 (void)PerlLIO_umask(anum);
626 anum = PerlLIO_umask(POPi);
627 TAINT_PROPER("umask");
630 /* Only DIE if trying to restrict permissions on `user' (self).
631 * Otherwise it's harmless and more useful to just return undef
632 * since 'group' and 'other' concepts probably don't exist here. */
633 if (MAXARG >= 1 && (POPi & 0700))
634 DIE("umask not implemented");
635 XPUSHs(&PL_sv_undef);
653 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
656 if (do_binmode(fp,IoTYPE(io),TRUE))
671 I32 markoff = MARK - PL_stack_base;
678 switch(SvTYPE(varsv)) {
680 methname = "TIEHASH";
683 methname = "TIEARRAY";
686 methname = "TIEHANDLE";
690 methname = "TIESCALAR";
695 if (sv_isobject(*MARK)) {
697 PUSHSTACKi(PERLSI_MAGIC);
703 perl_call_method(methname, G_SCALAR);
706 /* Not clear why we don't call perl_call_method here too.
707 * perhaps to get different error message ?
709 stash = gv_stashsv(*MARK, FALSE);
710 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
711 DIE("Can't locate object method \"%s\" via package \"%s\"",
712 methname, SvPV(*MARK,n_a));
715 PUSHSTACKi(PERLSI_MAGIC);
721 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
727 if (sv_isobject(sv)) {
728 sv_unmagic(varsv, how);
729 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
732 SP = PL_stack_base + markoff;
741 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
743 if (ckWARN(WARN_UNTIE)) {
745 if (mg = SvTIED_mg(sv, how)) {
746 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
748 "untie attempted while %lu inner references still exist",
749 (unsigned long)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
761 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
764 if (mg = SvTIED_mg(sv, how)) {
765 SV *osv = SvTIED_obj(sv, mg);
766 if (osv == mg->mg_obj)
767 osv = sv_mortalcopy(osv);
785 sv = sv_mortalcopy(&PL_sv_no);
786 sv_setpv(sv, "AnyDBM_File");
787 stash = gv_stashsv(sv, FALSE);
788 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
790 perl_require_pv("AnyDBM_File.pm");
792 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
793 DIE("No dbm on this machine");
803 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
805 PUSHs(sv_2mortal(newSViv(O_RDWR)));
808 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
811 if (!sv_isobject(TOPs)) {
816 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
819 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
823 if (sv_isobject(TOPs)) {
824 sv_unmagic((SV *) hv, 'P');
825 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
833 return pp_untie(ARGS);
847 struct timeval timebuf;
848 struct timeval *tbuf = &timebuf;
852 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
857 # if BYTEORDER & 0xf0000
858 # define ORDERBYTE (0x88888888 - BYTEORDER)
860 # define ORDERBYTE (0x4444 - BYTEORDER)
866 for (i = 1; i <= 3; i++) {
874 /* little endians can use vecs directly */
875 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
876 # if SELECT_MIN_BITS > 1
877 /* If SELECT_MIN_BITS is greater than one we most probably will want
878 * to align the sizes with SELECT_MIN_BITS/8 because for example
879 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
880 * UNIX, Solaris, NeXT, Rhapsody) the smallest quantum select() operates
881 * on (sets/tests/clears bits) is 32 bits. */
882 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
884 growsize = sizeof(fd_set);
893 masksize = NFDBITS / NBBY;
895 masksize = sizeof(long); /* documented int, everyone seems to use long */
897 growsize = maxlen + (masksize - (maxlen % masksize));
898 Zero(&fd_sets[0], 4, char*);
906 timebuf.tv_sec = (long)value;
907 value -= (double)timebuf.tv_sec;
908 timebuf.tv_usec = (long)(value * 1000000.0);
911 tbuf = Null(struct timeval*);
913 for (i = 1; i <= 3; i++) {
920 SvPV_force(sv,n_a); /* force string conversion */
923 Sv_Grow(sv, growsize);
927 while (++j <= growsize) {
931 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
933 New(403, fd_sets[i], growsize, char);
934 for (offset = 0; offset < growsize; offset += masksize) {
935 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
936 fd_sets[i][j+offset] = s[(k % masksize) + offset];
939 fd_sets[i] = SvPVX(sv);
943 nfound = PerlSock_select(
945 (Select_fd_set_t) fd_sets[1],
946 (Select_fd_set_t) fd_sets[2],
947 (Select_fd_set_t) fd_sets[3],
949 for (i = 1; i <= 3; i++) {
952 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
954 for (offset = 0; offset < growsize; offset += masksize) {
955 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
956 s[(k % masksize) + offset] = fd_sets[i][j+offset];
958 Safefree(fd_sets[i]);
965 if (GIMME == G_ARRAY && tbuf) {
966 value = (double)(timebuf.tv_sec) +
967 (double)(timebuf.tv_usec) / 1000000.0;
968 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
973 DIE("select not implemented");
982 (void)SvREFCNT_inc(gv);
984 SvREFCNT_dec(PL_defoutgv);
994 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
996 egv = GvEGV(PL_defoutgv);
1001 XPUSHs(&PL_sv_undef);
1003 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1004 if (gvp && *gvp == egv) {
1005 gv_efullname3(TARG, PL_defoutgv, Nullch);
1009 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1014 if (!GvIO(newdefout))
1015 gv_IOadd(newdefout);
1016 setdefout(newdefout);
1035 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1036 I32 gimme = GIMME_V;
1038 XPUSHs(SvTIED_obj((SV*)gv, mg));
1041 perl_call_method("GETC", gimme);
1044 if (gimme == G_SCALAR)
1045 SvSetMagicSV_nosteal(TARG, TOPs);
1048 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1051 sv_setpv(TARG, " ");
1052 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1059 return pp_sysread(ARGS);
1063 doform(CV *cv, GV *gv, OP *retop)
1066 register PERL_CONTEXT *cx;
1067 I32 gimme = GIMME_V;
1068 AV* padlist = CvPADLIST(cv);
1069 SV** svp = AvARRAY(padlist);
1075 PUSHBLOCK(cx, CXt_SUB, PL_stack_sp);
1077 SAVESPTR(PL_curpad);
1078 PL_curpad = AvARRAY((AV*)svp[1]);
1080 setdefout(gv); /* locally select filehandle so $% et al work */
1112 SV *tmpsv = sv_newmortal();
1113 gv_efullname3(tmpsv, fgv, Nullch);
1114 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
1116 DIE("Not a format reference");
1119 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1121 IoFLAGS(io) &= ~IOf_DIDTOP;
1122 return doform(cv,gv,PL_op->op_next);
1128 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1129 register IO *io = GvIOp(gv);
1130 PerlIO *ofp = IoOFP(io);
1134 register PERL_CONTEXT *cx;
1136 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1137 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1138 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1139 PL_formtarget != PL_toptarget)
1143 if (!IoTOP_GV(io)) {
1147 if (!IoTOP_NAME(io)) {
1148 if (!IoFMT_NAME(io))
1149 IoFMT_NAME(io) = savepv(GvNAME(gv));
1150 topname = sv_2mortal(newSVpvf("%s_TOP", IoFMT_NAME(io)));
1151 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1152 if ((topgv && GvFORM(topgv)) ||
1153 !gv_fetchpv("top",FALSE,SVt_PVFM))
1154 IoTOP_NAME(io) = savepv(SvPVX(topname));
1156 IoTOP_NAME(io) = savepv("top");
1158 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1159 if (!topgv || !GvFORM(topgv)) {
1160 IoLINES_LEFT(io) = 100000000;
1163 IoTOP_GV(io) = topgv;
1165 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1166 I32 lines = IoLINES_LEFT(io);
1167 char *s = SvPVX(PL_formtarget);
1168 if (lines <= 0) /* Yow, header didn't even fit!!! */
1170 while (lines-- > 0) {
1171 s = strchr(s, '\n');
1177 PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
1178 sv_chop(PL_formtarget, s);
1179 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1182 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1183 PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
1184 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1186 PL_formtarget = PL_toptarget;
1187 IoFLAGS(io) |= IOf_DIDTOP;
1190 DIE("bad top format reference");
1193 SV *tmpsv = sv_newmortal();
1194 gv_efullname3(tmpsv, fgv, Nullch);
1195 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
1198 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1199 return doform(cv,gv,PL_op);
1203 POPBLOCK(cx,PL_curpm);
1209 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1211 warner(WARN_IO, "Filehandle only opened for input");
1212 else if (ckWARN(WARN_CLOSED))
1213 warner(WARN_CLOSED, "Write on closed filehandle");
1218 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1219 if (ckWARN(WARN_IO))
1220 warner(WARN_IO, "page overflow");
1222 if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
1226 FmLINES(PL_formtarget) = 0;
1227 SvCUR_set(PL_formtarget, 0);
1228 *SvEND(PL_formtarget) = '\0';
1229 if (IoFLAGS(io) & IOf_FLUSH)
1230 (void)PerlIO_flush(fp);
1234 PL_formtarget = PL_bodytarget;
1236 return pop_return();
1241 djSP; dMARK; dORIGMARK;
1249 if (PL_op->op_flags & OPf_STACKED)
1254 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1255 if (MARK == ORIGMARK) {
1258 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1262 *MARK = SvTIED_obj((SV*)gv, mg);
1265 perl_call_method("PRINTF", G_SCALAR);
1268 MARK = ORIGMARK + 1;
1275 if (!(io = GvIO(gv))) {
1276 if (ckWARN(WARN_UNOPENED)) {
1277 gv_fullname3(sv, gv, Nullch);
1278 warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,n_a));
1280 SETERRNO(EBADF,RMS$_IFI);
1283 else if (!(fp = IoOFP(io))) {
1284 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1285 gv_fullname3(sv, gv, Nullch);
1287 warner(WARN_IO, "Filehandle %s opened only for input",
1289 else if (ckWARN(WARN_CLOSED))
1290 warner(WARN_CLOSED, "printf on closed filehandle %s",
1293 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1297 #ifdef USE_LOCALE_NUMERIC
1298 if (PL_op->op_private & OPpLOCALE)
1299 SET_NUMERIC_LOCAL();
1301 SET_NUMERIC_STANDARD();
1303 do_sprintf(sv, SP - MARK, MARK + 1);
1304 if (!do_print(sv, fp))
1307 if (IoFLAGS(io) & IOf_FLUSH)
1308 if (PerlIO_flush(fp) == EOF)
1319 PUSHs(&PL_sv_undef);
1340 tmps = SvPV(sv, len);
1341 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1342 IoLINES(GvIOp(gv)) = 0;
1346 PUSHs(&PL_sv_undef);
1353 djSP; dMARK; dORIGMARK; dTARGET;
1359 Sock_size_t bufsize;
1365 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1366 (mg = SvTIED_mg((SV*)gv, 'q')))
1371 *MARK = SvTIED_obj((SV*)gv, mg);
1373 perl_call_method("READ", G_SCALAR);
1386 sv_setpvn(bufsv, "", 0);
1387 buffer = SvPV_force(bufsv, blen);
1388 length = SvIVx(*++MARK);
1390 DIE("Negative length");
1393 offset = SvIVx(*++MARK);
1397 if (!io || !IoIFP(io))
1400 if (PL_op->op_type == OP_RECV) {
1401 char namebuf[MAXPATHLEN];
1402 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1403 bufsize = sizeof (struct sockaddr_in);
1405 bufsize = sizeof namebuf;
1407 buffer = SvGROW(bufsv, length+1);
1408 /* 'offset' means 'flags' here */
1409 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1410 (struct sockaddr *)namebuf, &bufsize);
1413 SvCUR_set(bufsv, length);
1414 *SvEND(bufsv) = '\0';
1415 (void)SvPOK_only(bufsv);
1417 /* This should not be marked tainted if the fp is marked clean */
1418 if (!(IoFLAGS(io) & IOf_UNTAINT))
1419 SvTAINTED_on(bufsv);
1421 sv_setpvn(TARG, namebuf, bufsize);
1426 if (PL_op->op_type == OP_RECV)
1427 DIE(PL_no_sock_func, "recv");
1431 DIE("Offset outside string");
1434 bufsize = SvCUR(bufsv);
1435 buffer = SvGROW(bufsv, length+offset+1);
1436 if (offset > bufsize) { /* Zero any newly allocated space */
1437 Zero(buffer+bufsize, offset-bufsize, char);
1439 if (PL_op->op_type == OP_SYSREAD) {
1440 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1441 if (IoTYPE(io) == 's') {
1442 length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1443 buffer+offset, length, 0);
1448 length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1449 buffer+offset, length);
1453 #ifdef HAS_SOCKET__bad_code_maybe
1454 if (IoTYPE(io) == 's') {
1455 char namebuf[MAXPATHLEN];
1456 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1457 bufsize = sizeof (struct sockaddr_in);
1459 bufsize = sizeof namebuf;
1461 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1462 (struct sockaddr *)namebuf, &bufsize);
1467 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1468 /* fread() returns 0 on both error and EOF */
1469 if (length == 0 && PerlIO_error(IoIFP(io)))
1474 SvCUR_set(bufsv, length+offset);
1475 *SvEND(bufsv) = '\0';
1476 (void)SvPOK_only(bufsv);
1478 /* This should not be marked tainted if the fp is marked clean */
1479 if (!(IoFLAGS(io) & IOf_UNTAINT))
1480 SvTAINTED_on(bufsv);
1493 int items = (SP - PL_stack_base) - TOPMARK;
1497 sv = sv_2mortal(newSViv(sv_len(*SP)));
1501 return pp_send(ARGS);
1506 djSP; dMARK; dORIGMARK; dTARGET;
1517 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1521 *MARK = SvTIED_obj((SV*)gv, mg);
1523 perl_call_method("WRITE", G_SCALAR);
1534 buffer = SvPV(bufsv, blen);
1535 length = SvIVx(*++MARK);
1537 DIE("Negative length");
1540 if (!io || !IoIFP(io)) {
1542 if (ckWARN(WARN_CLOSED)) {
1543 if (PL_op->op_type == OP_SYSWRITE)
1544 warner(WARN_CLOSED, "Syswrite on closed filehandle");
1546 warner(WARN_CLOSED, "Send on closed socket");
1549 else if (PL_op->op_type == OP_SYSWRITE) {
1551 offset = SvIVx(*++MARK);
1554 DIE("Offset outside string");
1556 } else if (offset >= blen && blen > 0)
1557 DIE("Offset outside string");
1560 if (length > blen - offset)
1561 length = blen - offset;
1562 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1563 if (IoTYPE(io) == 's') {
1564 length = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1565 buffer+offset, length, 0);
1570 length = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1571 buffer+offset, length);
1575 else if (SP > MARK) {
1578 sockbuf = SvPVx(*++MARK, mlen);
1579 length = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1580 (struct sockaddr *)sockbuf, mlen);
1583 length = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1587 DIE(PL_no_sock_func, "send");
1602 return pp_sysread(ARGS);
1613 gv = PL_last_in_gv = (GV*)POPs;
1614 PUSHs(boolSV(!gv || do_eof(gv)));
1626 gv = PL_last_in_gv = (GV*)POPs;
1627 PUSHi( do_tell(gv) );
1633 return pp_sysseek(ARGS);
1641 Off_t offset = POPl;
1643 gv = PL_last_in_gv = (GV*)POPs;
1644 if (PL_op->op_type == OP_SEEK)
1645 PUSHs(boolSV(do_seek(gv, offset, whence)));
1647 Off_t n = do_sysseek(gv, offset, whence);
1648 PUSHs((n < 0) ? &PL_sv_undef
1649 : sv_2mortal(n ? newSViv((IV)n)
1650 : newSVpvn(zero_but_true, ZBTLEN)));
1658 Off_t len = (Off_t)POPn;
1664 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1665 if (PL_op->op_flags & OPf_SPECIAL) {
1666 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
1668 TAINT_PROPER("truncate");
1669 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1671 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1673 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1682 if (SvTYPE(sv) == SVt_PVGV) {
1683 tmpgv = (GV*)sv; /* *main::FRED for example */
1686 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1687 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1691 name = SvPV(sv, n_a);
1692 TAINT_PROPER("truncate");
1694 if (truncate(name, len) < 0)
1699 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
1702 if (my_chsize(tmpfd, len) < 0)
1704 PerlLIO_close(tmpfd);
1713 SETERRNO(EBADF,RMS$_IFI);
1716 DIE("truncate not implemented");
1722 return pp_ioctl(ARGS);
1729 unsigned int func = U_I(POPn);
1730 int optype = PL_op->op_type;
1736 if (!io || !argsv || !IoIFP(io)) {
1737 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1741 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1744 s = SvPV_force(argsv, len);
1745 need = IOCPARM_LEN(func);
1747 s = Sv_Grow(argsv, need + 1);
1748 SvCUR_set(argsv, need);
1751 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1754 retval = SvIV(argsv);
1755 s = (char*)retval; /* ouch */
1758 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1760 if (optype == OP_IOCTL)
1762 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1764 DIE("ioctl is not implemented");
1768 #if defined(OS2) && defined(__EMX__)
1769 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1771 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1774 DIE("fcntl is not implemented");
1778 if (s[SvCUR(argsv)] != 17)
1779 DIE("Possible memory corruption: %s overflowed 3rd argument",
1780 PL_op_name[optype]);
1781 s[SvCUR(argsv)] = 0; /* put our null back */
1782 SvSETMAGIC(argsv); /* Assume it has changed */
1791 PUSHp(zero_but_true, ZBTLEN);
1811 fp = IoIFP(GvIOp(gv));
1815 (void)PerlIO_flush(fp);
1816 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
1823 DIE(PL_no_func, "flock()");
1835 int protocol = POPi;
1843 SETERRNO(EBADF,LIB$_INVARG);
1849 do_close(gv, FALSE);
1851 TAINT_PROPER("socket");
1852 fd = PerlSock_socket(domain, type, protocol);
1855 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1856 IoOFP(io) = PerlIO_fdopen(fd, "w");
1858 if (!IoIFP(io) || !IoOFP(io)) {
1859 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1860 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1861 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
1867 DIE(PL_no_sock_func, "socket");
1874 #ifdef HAS_SOCKETPAIR
1879 int protocol = POPi;
1892 do_close(gv1, FALSE);
1894 do_close(gv2, FALSE);
1896 TAINT_PROPER("socketpair");
1897 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
1899 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1900 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1902 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1903 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1905 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1906 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1907 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1908 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
1909 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1910 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1911 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
1917 DIE(PL_no_sock_func, "socketpair");
1925 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
1926 extern GETPRIVMODE();
1927 extern GETUSERMODE();
1932 register IO *io = GvIOn(gv);
1936 int mpeprivmode = 0;
1939 if (!io || !IoIFP(io))
1942 addr = SvPV(addrsv, len);
1943 TAINT_PROPER("bind");
1944 #ifdef MPE /* Deal with MPE bind() peculiarities */
1945 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
1946 /* The address *MUST* stupidly be zero. */
1947 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
1948 /* PRIV mode is required to bind() to ports < 1024. */
1949 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
1950 ((struct sockaddr_in *)addr)->sin_port > 0) {
1951 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
1956 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
1957 (struct sockaddr *)addr, len) >= 0)
1960 #ifdef MPE /* Switch back to USER mode */
1971 if (ckWARN(WARN_CLOSED))
1972 warner(WARN_CLOSED, "bind() on closed fd");
1973 SETERRNO(EBADF,SS$_IVCHAN);
1976 DIE(PL_no_sock_func, "bind");
1987 register IO *io = GvIOn(gv);
1990 if (!io || !IoIFP(io))
1993 addr = SvPV(addrsv, len);
1994 TAINT_PROPER("connect");
1995 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2001 if (ckWARN(WARN_CLOSED))
2002 warner(WARN_CLOSED, "connect() on closed fd");
2003 SETERRNO(EBADF,SS$_IVCHAN);
2006 DIE(PL_no_sock_func, "connect");
2016 register IO *io = GvIOn(gv);
2018 if (!io || !IoIFP(io))
2021 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2027 if (ckWARN(WARN_CLOSED))
2028 warner(WARN_CLOSED, "listen() on closed fd");
2029 SETERRNO(EBADF,SS$_IVCHAN);
2032 DIE(PL_no_sock_func, "listen");
2044 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2045 Sock_size_t len = sizeof saddr;
2057 if (!gstio || !IoIFP(gstio))
2062 do_close(ngv, FALSE);
2064 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2067 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2068 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2069 IoTYPE(nstio) = 's';
2070 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2071 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2072 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2073 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2077 PUSHp((char *)&saddr, len);
2081 if (ckWARN(WARN_CLOSED))
2082 warner(WARN_CLOSED, "accept() on closed fd");
2083 SETERRNO(EBADF,SS$_IVCHAN);
2089 DIE(PL_no_sock_func, "accept");
2099 register IO *io = GvIOn(gv);
2101 if (!io || !IoIFP(io))
2104 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2108 if (ckWARN(WARN_CLOSED))
2109 warner(WARN_CLOSED, "shutdown() on closed fd");
2110 SETERRNO(EBADF,SS$_IVCHAN);
2113 DIE(PL_no_sock_func, "shutdown");
2120 return pp_ssockopt(ARGS);
2122 DIE(PL_no_sock_func, "getsockopt");
2130 int optype = PL_op->op_type;
2133 unsigned int optname;
2139 if (optype == OP_GSOCKOPT)
2140 sv = sv_2mortal(NEWSV(22, 257));
2143 optname = (unsigned int) POPi;
2144 lvl = (unsigned int) POPi;
2148 if (!io || !IoIFP(io))
2151 fd = PerlIO_fileno(IoIFP(io));
2155 (void)SvPOK_only(sv);
2159 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2174 aint = (int)SvIV(sv);
2178 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2187 if (ckWARN(WARN_CLOSED))
2188 warner(WARN_CLOSED, "[gs]etsockopt() on closed fd");
2189 SETERRNO(EBADF,SS$_IVCHAN);
2194 DIE(PL_no_sock_func, "setsockopt");
2201 return pp_getpeername(ARGS);
2203 DIE(PL_no_sock_func, "getsockname");
2211 int optype = PL_op->op_type;
2215 register IO *io = GvIOn(gv);
2218 if (!io || !IoIFP(io))
2221 sv = sv_2mortal(NEWSV(22, 257));
2222 (void)SvPOK_only(sv);
2226 fd = PerlIO_fileno(IoIFP(io));
2228 case OP_GETSOCKNAME:
2229 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2232 case OP_GETPEERNAME:
2233 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2235 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2237 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2238 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2239 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2240 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2241 sizeof(u_short) + sizeof(struct in_addr))) {
2248 #ifdef BOGUS_GETNAME_RETURN
2249 /* Interactive Unix, getpeername() and getsockname()
2250 does not return valid namelen */
2251 if (len == BOGUS_GETNAME_RETURN)
2252 len = sizeof(struct sockaddr);
2260 if (ckWARN(WARN_CLOSED))
2261 warner(WARN_CLOSED, "get{sock, peer}name() on closed fd");
2262 SETERRNO(EBADF,SS$_IVCHAN);
2267 DIE(PL_no_sock_func, "getpeername");
2275 return pp_stat(ARGS);
2286 if (PL_op->op_flags & OPf_REF) {
2287 tmpgv = cGVOP->op_gv;
2289 if (tmpgv != PL_defgv) {
2290 PL_laststype = OP_STAT;
2292 sv_setpv(PL_statname, "");
2293 PL_laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
2294 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &PL_statcache) : -1);
2296 if (PL_laststatval < 0)
2301 if (SvTYPE(sv) == SVt_PVGV) {
2305 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2306 tmpgv = (GV*)SvRV(sv);
2309 sv_setpv(PL_statname, SvPV(sv,n_a));
2312 PL_laststype = PL_op->op_type;
2313 if (PL_op->op_type == OP_LSTAT)
2314 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2317 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2318 if (PL_laststatval < 0) {
2319 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2320 warner(WARN_NEWLINE, PL_warn_nl, "stat");
2326 if (gimme != G_ARRAY) {
2327 if (gimme != G_VOID)
2328 XPUSHs(boolSV(max));
2334 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_dev)));
2335 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ino)));
2336 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mode)));
2337 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_nlink)));
2338 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_uid)));
2339 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_gid)));
2340 #ifdef USE_STAT_RDEV
2341 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_rdev)));
2343 PUSHs(sv_2mortal(newSVpvn("", 0)));
2345 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_size)));
2347 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_atime)));
2348 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_mtime)));
2349 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_ctime)));
2351 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_atime)));
2352 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mtime)));
2353 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ctime)));
2355 #ifdef USE_STAT_BLOCKS
2356 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blksize)));
2357 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blocks)));
2359 PUSHs(sv_2mortal(newSVpvn("", 0)));
2360 PUSHs(sv_2mortal(newSVpvn("", 0)));
2370 #if defined(HAS_ACCESS) && defined(R_OK)
2372 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2373 result = access(TOPpx, R_OK);
2381 result = my_stat(ARGS);
2383 result = my_stat(ARGS);
2388 if (cando(S_IRUSR, 0, &PL_statcache))
2397 #if defined(HAS_ACCESS) && defined(W_OK)
2399 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2400 result = access(TOPpx, W_OK);
2408 result = my_stat(ARGS);
2410 result = my_stat(ARGS);
2415 if (cando(S_IWUSR, 0, &PL_statcache))
2424 #if defined(HAS_ACCESS) && defined(X_OK)
2426 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2427 result = access(TOPpx, X_OK);
2435 result = my_stat(ARGS);
2437 result = my_stat(ARGS);
2442 if (cando(S_IXUSR, 0, &PL_statcache))
2451 #ifdef PERL_EFF_ACCESS_R_OK
2453 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2454 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2462 result = my_stat(ARGS);
2464 result = my_stat(ARGS);
2469 if (cando(S_IRUSR, 1, &PL_statcache))
2478 #ifdef PERL_EFF_ACCESS_W_OK
2480 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2481 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2489 result = my_stat(ARGS);
2491 result = my_stat(ARGS);
2496 if (cando(S_IWUSR, 1, &PL_statcache))
2505 #ifdef PERL_EFF_ACCESS_X_OK
2507 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2508 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2516 result = my_stat(ARGS);
2518 result = my_stat(ARGS);
2523 if (cando(S_IXUSR, 1, &PL_statcache))
2530 I32 result = my_stat(ARGS);
2539 return pp_ftrowned(ARGS);
2544 I32 result = my_stat(ARGS);
2548 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ? PL_euid : PL_uid) )
2555 I32 result = my_stat(ARGS);
2559 if (!PL_statcache.st_size)
2566 I32 result = my_stat(ARGS);
2570 PUSHi(PL_statcache.st_size);
2576 I32 result = my_stat(ARGS);
2580 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_mtime) / 86400.0 );
2586 I32 result = my_stat(ARGS);
2590 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_atime) / 86400.0 );
2596 I32 result = my_stat(ARGS);
2600 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_ctime) / 86400.0 );
2606 I32 result = my_stat(ARGS);
2610 if (S_ISSOCK(PL_statcache.st_mode))
2617 I32 result = my_stat(ARGS);
2621 if (S_ISCHR(PL_statcache.st_mode))
2628 I32 result = my_stat(ARGS);
2632 if (S_ISBLK(PL_statcache.st_mode))
2639 I32 result = my_stat(ARGS);
2643 if (S_ISREG(PL_statcache.st_mode))
2650 I32 result = my_stat(ARGS);
2654 if (S_ISDIR(PL_statcache.st_mode))
2661 I32 result = my_stat(ARGS);
2665 if (S_ISFIFO(PL_statcache.st_mode))
2672 I32 result = my_lstat(ARGS);
2676 if (S_ISLNK(PL_statcache.st_mode))
2685 I32 result = my_stat(ARGS);
2689 if (PL_statcache.st_mode & S_ISUID)
2699 I32 result = my_stat(ARGS);
2703 if (PL_statcache.st_mode & S_ISGID)
2713 I32 result = my_stat(ARGS);
2717 if (PL_statcache.st_mode & S_ISVTX)
2728 char *tmps = Nullch;
2731 if (PL_op->op_flags & OPf_REF)
2733 else if (isGV(TOPs))
2735 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2736 gv = (GV*)SvRV(POPs);
2738 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
2740 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2741 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2742 else if (tmps && isDIGIT(*tmps))
2746 if (PerlLIO_isatty(fd))
2751 #if defined(atarist) /* this will work with atariST. Configure will
2752 make guesses for other systems. */
2753 # define FILE_base(f) ((f)->_base)
2754 # define FILE_ptr(f) ((f)->_ptr)
2755 # define FILE_cnt(f) ((f)->_cnt)
2756 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2766 register STDCHAR *s;
2772 if (PL_op->op_flags & OPf_REF)
2774 else if (isGV(TOPs))
2776 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2777 gv = (GV*)SvRV(POPs);
2783 if (gv == PL_defgv) {
2785 io = GvIO(PL_statgv);
2788 goto really_filename;
2793 PL_laststatval = -1;
2794 sv_setpv(PL_statname, "");
2795 io = GvIO(PL_statgv);
2797 if (io && IoIFP(io)) {
2798 if (! PerlIO_has_base(IoIFP(io)))
2799 DIE("-T and -B not implemented on filehandles");
2800 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2801 if (PL_laststatval < 0)
2803 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
2804 if (PL_op->op_type == OP_FTTEXT)
2808 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2809 i = PerlIO_getc(IoIFP(io));
2811 (void)PerlIO_ungetc(IoIFP(io),i);
2813 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2815 len = PerlIO_get_bufsiz(IoIFP(io));
2816 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2817 /* sfio can have large buffers - limit to 512 */
2822 if (ckWARN(WARN_UNOPENED))
2823 warner(WARN_UNOPENED, "Test on unopened file <%s>",
2824 GvENAME(cGVOP->op_gv));
2825 SETERRNO(EBADF,RMS$_IFI);
2833 PL_laststatval = -1;
2834 sv_setpv(PL_statname, SvPV(sv, n_a));
2836 i = PerlLIO_open3(SvPV(sv, n_a), O_RDONLY, 0);
2838 i = PerlLIO_open(SvPV(sv, n_a), 0);
2841 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
2842 warner(WARN_NEWLINE, PL_warn_nl, "open");
2845 PL_laststatval = PerlLIO_fstat(i, &PL_statcache);
2846 if (PL_laststatval < 0)
2848 len = PerlLIO_read(i, tbuf, 512);
2849 (void)PerlLIO_close(i);
2851 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
2852 RETPUSHNO; /* special case NFS directories */
2853 RETPUSHYES; /* null file is anything */
2858 /* now scan s to look for textiness */
2859 /* XXX ASCII dependent code */
2861 for (i = 0; i < len; i++, s++) {
2862 if (!*s) { /* null never allowed in text */
2867 else if (!(isPRINT(*s) || isSPACE(*s)))
2873 *s != '\n' && *s != '\r' && *s != '\b' &&
2874 *s != '\t' && *s != '\f' && *s != 27)
2879 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2887 return pp_fttext(ARGS);
2903 if (!tmps || !*tmps) {
2904 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
2906 tmps = SvPV(*svp, n_a);
2908 if (!tmps || !*tmps) {
2909 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
2911 tmps = SvPV(*svp, n_a);
2914 if (!tmps || !*tmps) {
2915 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
2917 tmps = SvPV(*svp, n_a);
2920 TAINT_PROPER("chdir");
2921 PUSHi( PerlDir_chdir(tmps) >= 0 );
2923 /* Clear the DEFAULT element of ENV so we'll get the new value
2925 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
2932 djSP; dMARK; dTARGET;
2935 value = (I32)apply(PL_op->op_type, MARK, SP);
2940 DIE(PL_no_func, "Unsupported function chown");
2951 TAINT_PROPER("chroot");
2952 PUSHi( chroot(tmps) >= 0 );
2955 DIE(PL_no_func, "chroot");
2961 djSP; dMARK; dTARGET;
2963 value = (I32)apply(PL_op->op_type, MARK, SP);
2971 djSP; dMARK; dTARGET;
2973 value = (I32)apply(PL_op->op_type, MARK, SP);
2981 djSP; dMARK; dTARGET;
2983 value = (I32)apply(PL_op->op_type, MARK, SP);
2995 char *tmps2 = POPpx;
2996 char *tmps = SvPV(TOPs, n_a);
2997 TAINT_PROPER("rename");
2999 anum = PerlLIO_rename(tmps, tmps2);
3001 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3002 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3005 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3006 (void)UNLINK(tmps2);
3007 if (!(anum = link(tmps, tmps2)))
3008 anum = UNLINK(tmps);
3021 char *tmps2 = POPpx;
3022 char *tmps = SvPV(TOPs, n_a);
3023 TAINT_PROPER("link");
3024 SETi( link(tmps, tmps2) >= 0 );
3026 DIE(PL_no_func, "Unsupported function link");
3036 char *tmps2 = POPpx;
3037 char *tmps = SvPV(TOPs, n_a);
3038 TAINT_PROPER("symlink");
3039 SETi( symlink(tmps, tmps2) >= 0 );
3042 DIE(PL_no_func, "symlink");
3051 char buf[MAXPATHLEN];
3055 #ifndef INCOMPLETE_TAINTS
3059 len = readlink(tmps, buf, sizeof buf);
3067 RETSETUNDEF; /* just pretend it's a normal file */
3071 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3073 dooneliner(cmd, filename)
3077 char *save_filename = filename;
3083 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3084 strcpy(cmdline, cmd);
3085 strcat(cmdline, " ");
3086 for (s = cmdline + strlen(cmdline); *filename; ) {
3091 myfp = PerlProc_popen(cmdline, "r");
3095 SV *tmpsv = sv_newmortal();
3096 /* Need to save/restore 'PL_rs' ?? */
3097 s = sv_gets(tmpsv, myfp, 0);
3098 (void)PerlProc_pclose(myfp);
3102 #ifdef HAS_SYS_ERRLIST
3107 /* you don't see this */
3109 #ifdef HAS_SYS_ERRLIST
3117 if (instr(s, errmsg)) {
3124 #define EACCES EPERM
3126 if (instr(s, "cannot make"))
3127 SETERRNO(EEXIST,RMS$_FEX);
3128 else if (instr(s, "existing file"))
3129 SETERRNO(EEXIST,RMS$_FEX);
3130 else if (instr(s, "ile exists"))
3131 SETERRNO(EEXIST,RMS$_FEX);
3132 else if (instr(s, "non-exist"))
3133 SETERRNO(ENOENT,RMS$_FNF);
3134 else if (instr(s, "does not exist"))
3135 SETERRNO(ENOENT,RMS$_FNF);
3136 else if (instr(s, "not empty"))
3137 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3138 else if (instr(s, "cannot access"))
3139 SETERRNO(EACCES,RMS$_PRV);
3141 SETERRNO(EPERM,RMS$_PRV);
3144 else { /* some mkdirs return no failure indication */
3145 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3146 if (PL_op->op_type == OP_RMDIR)
3151 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3168 char *tmps = SvPV(TOPs, n_a);
3170 TAINT_PROPER("mkdir");
3172 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3174 SETi( dooneliner("mkdir", tmps) );
3175 oldumask = PerlLIO_umask(0);
3176 PerlLIO_umask(oldumask);
3177 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3189 TAINT_PROPER("rmdir");
3191 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3193 XPUSHi( dooneliner("rmdir", tmps) );
3198 /* Directory calls. */
3203 #if defined(Direntry_t) && defined(HAS_READDIR)
3205 char *dirname = POPpx;
3207 register IO *io = GvIOn(gv);
3213 PerlDir_close(IoDIRP(io));
3214 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3220 SETERRNO(EBADF,RMS$_DIR);
3223 DIE(PL_no_dir_func, "opendir");
3230 #if defined(Direntry_t) && defined(HAS_READDIR)
3232 Direntry_t *readdir _((DIR *));
3234 register Direntry_t *dp;
3236 register IO *io = GvIOn(gv);
3239 if (!io || !IoDIRP(io))
3242 if (GIMME == G_ARRAY) {
3244 while (dp = (Direntry_t *)PerlDir_read(IoDIRP(io))) {
3246 sv = newSVpvn(dp->d_name, dp->d_namlen);
3248 sv = newSVpv(dp->d_name, 0);
3250 #ifndef INCOMPLETE_TAINTS
3253 XPUSHs(sv_2mortal(sv));
3257 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3260 sv = newSVpvn(dp->d_name, dp->d_namlen);
3262 sv = newSVpv(dp->d_name, 0);
3264 #ifndef INCOMPLETE_TAINTS
3267 XPUSHs(sv_2mortal(sv));
3273 SETERRNO(EBADF,RMS$_ISI);
3274 if (GIMME == G_ARRAY)
3279 DIE(PL_no_dir_func, "readdir");
3286 #if defined(HAS_TELLDIR) || defined(telldir)
3287 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3288 /* XXX netbsd still seemed to.
3289 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3290 --JHI 1999-Feb-02 */
3291 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3292 long telldir _((DIR *));
3295 register IO *io = GvIOn(gv);
3297 if (!io || !IoDIRP(io))
3300 PUSHi( PerlDir_tell(IoDIRP(io)) );
3304 SETERRNO(EBADF,RMS$_ISI);
3307 DIE(PL_no_dir_func, "telldir");
3314 #if defined(HAS_SEEKDIR) || defined(seekdir)
3317 register IO *io = GvIOn(gv);
3319 if (!io || !IoDIRP(io))
3322 (void)PerlDir_seek(IoDIRP(io), along);
3327 SETERRNO(EBADF,RMS$_ISI);
3330 DIE(PL_no_dir_func, "seekdir");
3337 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3339 register IO *io = GvIOn(gv);
3341 if (!io || !IoDIRP(io))
3344 (void)PerlDir_rewind(IoDIRP(io));
3348 SETERRNO(EBADF,RMS$_ISI);
3351 DIE(PL_no_dir_func, "rewinddir");
3358 #if defined(Direntry_t) && defined(HAS_READDIR)
3360 register IO *io = GvIOn(gv);
3362 if (!io || !IoDIRP(io))
3365 #ifdef VOID_CLOSEDIR
3366 PerlDir_close(IoDIRP(io));
3368 if (PerlDir_close(IoDIRP(io)) < 0) {
3369 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3378 SETERRNO(EBADF,RMS$_IFI);
3381 DIE(PL_no_dir_func, "closedir");
3385 /* Process control. */
3400 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
3401 sv_setiv(GvSV(tmpgv), (IV)getpid());
3402 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3407 DIE(PL_no_func, "Unsupported function fork");
3413 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3418 childpid = wait4pid(-1, &argflags, 0);
3419 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3423 DIE(PL_no_func, "Unsupported function wait");
3429 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3437 childpid = wait4pid(childpid, &argflags, optype);
3438 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3442 DIE(PL_no_func, "Unsupported function waitpid");
3448 djSP; dMARK; dORIGMARK; dTARGET;
3453 Sigsave_t ihand,qhand; /* place to save signals during system() */
3456 if (SP - MARK == 1) {
3458 char *junk = SvPV(TOPs, n_a);
3460 TAINT_PROPER("system");
3463 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
3464 while ((childpid = vfork()) == -1) {
3465 if (errno != EAGAIN) {
3474 rsignal_save(SIGINT, SIG_IGN, &ihand);
3475 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
3477 result = wait4pid(childpid, &status, 0);
3478 } while (result == -1 && errno == EINTR);
3479 (void)rsignal_restore(SIGINT, &ihand);
3480 (void)rsignal_restore(SIGQUIT, &qhand);
3481 STATUS_NATIVE_SET(result == -1 ? -1 : status);
3482 do_execfree(); /* free any memory child malloced on vfork */
3484 PUSHi(STATUS_CURRENT);
3487 if (PL_op->op_flags & OPf_STACKED) {
3488 SV *really = *++MARK;
3489 value = (I32)do_aexec(really, MARK, SP);
3491 else if (SP - MARK != 1)
3492 value = (I32)do_aexec(Nullsv, MARK, SP);
3494 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3497 #else /* ! FORK or VMS or OS/2 */
3498 if (PL_op->op_flags & OPf_STACKED) {
3499 SV *really = *++MARK;
3500 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
3502 else if (SP - MARK != 1)
3503 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
3505 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3507 STATUS_NATIVE_SET(value);
3510 PUSHi(STATUS_CURRENT);
3511 #endif /* !FORK or VMS */
3517 djSP; dMARK; dORIGMARK; dTARGET;
3521 if (PL_op->op_flags & OPf_STACKED) {
3522 SV *really = *++MARK;
3523 value = (I32)do_aexec(really, MARK, SP);
3525 else if (SP - MARK != 1)
3527 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3531 (void ) do_aspawn(Nullsv, MARK, SP);
3535 value = (I32)do_aexec(Nullsv, MARK, SP);
3540 char *junk = SvPV(*SP, n_a);
3542 TAINT_PROPER("exec");
3545 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3548 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3551 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3562 djSP; dMARK; dTARGET;
3565 value = (I32)apply(PL_op->op_type, MARK, SP);
3570 DIE(PL_no_func, "Unsupported function kill");
3578 XPUSHi( getppid() );
3581 DIE(PL_no_func, "getppid");
3597 value = (I32)BSD_GETPGRP(pid);
3599 if (pid != 0 && pid != getpid())
3600 DIE("POSIX getpgrp can't take an argument");
3601 value = (I32)getpgrp();
3606 DIE(PL_no_func, "getpgrp()");
3625 TAINT_PROPER("setpgrp");
3627 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3629 if ((pgrp != 0 && pgrp != getpid()) || (pid != 0 && pid != getpid()))
3630 DIE("POSIX setpgrp can't take an argument");
3631 SETi( setpgrp() >= 0 );
3632 #endif /* USE_BSDPGRP */
3635 DIE(PL_no_func, "setpgrp()");
3644 #ifdef HAS_GETPRIORITY
3647 SETi( getpriority(which, who) );
3650 DIE(PL_no_func, "getpriority()");
3660 #ifdef HAS_SETPRIORITY
3664 TAINT_PROPER("setpriority");
3665 SETi( setpriority(which, who, niceval) >= 0 );
3668 DIE(PL_no_func, "setpriority()");
3678 XPUSHn( time(Null(Time_t*)) );
3680 XPUSHi( time(Null(Time_t*)) );
3685 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3686 to HZ. Probably. For now, assume that if the system
3687 defines HZ, it does so correctly. (Will this break
3689 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3690 it's supported. --AD 9/96.
3706 DIE("times not implemented");
3711 (void)PerlProc_times(&PL_timesbuf);
3713 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
3714 /* struct tms, though same data */
3718 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_utime)/HZ)));
3719 if (GIMME == G_ARRAY) {
3720 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_stime)/HZ)));
3721 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cutime)/HZ)));
3722 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cstime)/HZ)));
3725 #endif /* HAS_TIMES */
3730 return pp_gmtime(ARGS);
3738 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3739 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3740 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3746 when = (Time_t)SvNVx(POPs);
3748 when = (Time_t)SvIVx(POPs);
3751 if (PL_op->op_type == OP_LOCALTIME)
3752 tmbuf = localtime(&when);
3754 tmbuf = gmtime(&when);
3758 if (GIMME != G_ARRAY) {
3763 tsv = newSVpvf("%s %s %2d %02d:%02d:%02d %d",
3764 dayname[tmbuf->tm_wday],
3765 monname[tmbuf->tm_mon],
3770 tmbuf->tm_year + 1900);
3771 PUSHs(sv_2mortal(tsv));
3774 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3775 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3776 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3777 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3778 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3779 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3780 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3781 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3782 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3793 anum = alarm((unsigned int)anum);
3800 DIE(PL_no_func, "Unsupported function alarm");
3811 (void)time(&lasttime);
3816 PerlProc_sleep((unsigned int)duration);
3819 XPUSHi(when - lasttime);
3823 /* Shared memory. */
3827 return pp_semget(ARGS);
3832 return pp_semctl(ARGS);
3837 return pp_shmwrite(ARGS);
3842 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3843 djSP; dMARK; dTARGET;
3844 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
3849 return pp_semget(ARGS);
3853 /* Message passing. */
3857 return pp_semget(ARGS);
3862 return pp_semctl(ARGS);
3867 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3868 djSP; dMARK; dTARGET;
3869 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3874 return pp_semget(ARGS);
3880 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3881 djSP; dMARK; dTARGET;
3882 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3887 return pp_semget(ARGS);
3895 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3896 djSP; dMARK; dTARGET;
3897 int anum = do_ipcget(PL_op->op_type, MARK, SP);
3904 DIE("System V IPC is not implemented on this machine");
3910 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3911 djSP; dMARK; dTARGET;
3912 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
3920 PUSHp(zero_but_true, ZBTLEN);
3924 return pp_semget(ARGS);
3930 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3931 djSP; dMARK; dTARGET;
3932 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3937 return pp_semget(ARGS);
3941 /* Get system info. */
3945 #ifdef HAS_GETHOSTBYNAME
3946 return pp_ghostent(ARGS);
3948 DIE(PL_no_sock_func, "gethostbyname");
3954 #ifdef HAS_GETHOSTBYADDR
3955 return pp_ghostent(ARGS);
3957 DIE(PL_no_sock_func, "gethostbyaddr");
3964 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
3965 I32 which = PL_op->op_type;
3966 register char **elem;
3968 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
3969 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
3970 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
3971 struct hostent *PerlSock_gethostent(void);
3973 struct hostent *hent;
3978 if (which == OP_GHBYNAME)
3979 #ifdef HAS_GETHOSTBYNAME
3980 hent = PerlSock_gethostbyname(POPpx);
3982 DIE(PL_no_sock_func, "gethostbyname");
3984 else if (which == OP_GHBYADDR) {
3985 #ifdef HAS_GETHOSTBYADDR
3986 int addrtype = POPi;
3989 Netdb_host_t addr = (Netdb_host_t) SvPV(addrsv, addrlen);
3991 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
3993 DIE(PL_no_sock_func, "gethostbyaddr");
3997 #ifdef HAS_GETHOSTENT
3998 hent = PerlSock_gethostent();
4000 DIE(PL_no_sock_func, "gethostent");
4003 #ifdef HOST_NOT_FOUND
4005 STATUS_NATIVE_SET(h_errno);
4008 if (GIMME != G_ARRAY) {
4009 PUSHs(sv = sv_newmortal());
4011 if (which == OP_GHBYNAME) {
4013 sv_setpvn(sv, hent->h_addr, hent->h_length);
4016 sv_setpv(sv, (char*)hent->h_name);
4022 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4023 sv_setpv(sv, (char*)hent->h_name);
4024 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4025 for (elem = hent->h_aliases; elem && *elem; elem++) {
4026 sv_catpv(sv, *elem);
4028 sv_catpvn(sv, " ", 1);
4030 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4031 sv_setiv(sv, (IV)hent->h_addrtype);
4032 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4033 len = hent->h_length;
4034 sv_setiv(sv, (IV)len);
4036 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4037 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4038 sv_setpvn(sv, *elem, len);
4041 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4043 sv_setpvn(sv, hent->h_addr, len);
4048 DIE(PL_no_sock_func, "gethostent");
4054 #ifdef HAS_GETNETBYNAME
4055 return pp_gnetent(ARGS);
4057 DIE(PL_no_sock_func, "getnetbyname");
4063 #ifdef HAS_GETNETBYADDR
4064 return pp_gnetent(ARGS);
4066 DIE(PL_no_sock_func, "getnetbyaddr");
4073 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4074 I32 which = PL_op->op_type;
4075 register char **elem;
4077 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4078 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4079 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4080 struct netent *PerlSock_getnetent(void);
4082 struct netent *nent;
4085 if (which == OP_GNBYNAME)
4086 #ifdef HAS_GETNETBYNAME
4087 nent = PerlSock_getnetbyname(POPpx);
4089 DIE(PL_no_sock_func, "getnetbyname");
4091 else if (which == OP_GNBYADDR) {
4092 #ifdef HAS_GETNETBYADDR
4093 int addrtype = POPi;
4094 Netdb_net_t addr = (Netdb_net_t) U_L(POPn);
4095 nent = PerlSock_getnetbyaddr(addr, addrtype);
4097 DIE(PL_no_sock_func, "getnetbyaddr");
4101 #ifdef HAS_GETNETENT
4102 nent = PerlSock_getnetent();
4104 DIE(PL_no_sock_func, "getnetent");
4108 if (GIMME != G_ARRAY) {
4109 PUSHs(sv = sv_newmortal());
4111 if (which == OP_GNBYNAME)
4112 sv_setiv(sv, (IV)nent->n_net);
4114 sv_setpv(sv, nent->n_name);
4120 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4121 sv_setpv(sv, nent->n_name);
4122 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4123 for (elem = nent->n_aliases; elem && *elem; elem++) {
4124 sv_catpv(sv, *elem);
4126 sv_catpvn(sv, " ", 1);
4128 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4129 sv_setiv(sv, (IV)nent->n_addrtype);
4130 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4131 sv_setiv(sv, (IV)nent->n_net);
4136 DIE(PL_no_sock_func, "getnetent");
4142 #ifdef HAS_GETPROTOBYNAME
4143 return pp_gprotoent(ARGS);
4145 DIE(PL_no_sock_func, "getprotobyname");
4151 #ifdef HAS_GETPROTOBYNUMBER
4152 return pp_gprotoent(ARGS);
4154 DIE(PL_no_sock_func, "getprotobynumber");
4161 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4162 I32 which = PL_op->op_type;
4163 register char **elem;
4165 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4166 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4167 struct protoent *PerlSock_getprotobynumber(int);
4168 struct protoent *PerlSock_getprotoent(void);
4170 struct protoent *pent;
4173 if (which == OP_GPBYNAME)
4174 #ifdef HAS_GETPROTOBYNAME
4175 pent = PerlSock_getprotobyname(POPpx);
4177 DIE(PL_no_sock_func, "getprotobyname");
4179 else if (which == OP_GPBYNUMBER)
4180 #ifdef HAS_GETPROTOBYNUMBER
4181 pent = PerlSock_getprotobynumber(POPi);
4183 DIE(PL_no_sock_func, "getprotobynumber");
4186 #ifdef HAS_GETPROTOENT
4187 pent = PerlSock_getprotoent();
4189 DIE(PL_no_sock_func, "getprotoent");
4193 if (GIMME != G_ARRAY) {
4194 PUSHs(sv = sv_newmortal());
4196 if (which == OP_GPBYNAME)
4197 sv_setiv(sv, (IV)pent->p_proto);
4199 sv_setpv(sv, pent->p_name);
4205 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4206 sv_setpv(sv, pent->p_name);
4207 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4208 for (elem = pent->p_aliases; elem && *elem; elem++) {
4209 sv_catpv(sv, *elem);
4211 sv_catpvn(sv, " ", 1);
4213 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4214 sv_setiv(sv, (IV)pent->p_proto);
4219 DIE(PL_no_sock_func, "getprotoent");
4225 #ifdef HAS_GETSERVBYNAME
4226 return pp_gservent(ARGS);
4228 DIE(PL_no_sock_func, "getservbyname");
4234 #ifdef HAS_GETSERVBYPORT
4235 return pp_gservent(ARGS);
4237 DIE(PL_no_sock_func, "getservbyport");
4244 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4245 I32 which = PL_op->op_type;
4246 register char **elem;
4248 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4249 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4250 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4251 struct servent *PerlSock_getservent(void);
4253 struct servent *sent;
4256 if (which == OP_GSBYNAME) {
4257 #ifdef HAS_GETSERVBYNAME
4258 char *proto = POPpx;
4261 if (proto && !*proto)
4264 sent = PerlSock_getservbyname(name, proto);
4266 DIE(PL_no_sock_func, "getservbyname");
4269 else if (which == OP_GSBYPORT) {
4270 #ifdef HAS_GETSERVBYPORT
4271 char *proto = POPpx;
4272 unsigned short port = POPu;
4275 port = PerlSock_htons(port);
4277 sent = PerlSock_getservbyport(port, proto);
4279 DIE(PL_no_sock_func, "getservbyport");
4283 #ifdef HAS_GETSERVENT
4284 sent = PerlSock_getservent();
4286 DIE(PL_no_sock_func, "getservent");
4290 if (GIMME != G_ARRAY) {
4291 PUSHs(sv = sv_newmortal());
4293 if (which == OP_GSBYNAME) {
4295 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4297 sv_setiv(sv, (IV)(sent->s_port));
4301 sv_setpv(sv, sent->s_name);
4307 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4308 sv_setpv(sv, sent->s_name);
4309 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4310 for (elem = sent->s_aliases; elem && *elem; elem++) {
4311 sv_catpv(sv, *elem);
4313 sv_catpvn(sv, " ", 1);
4315 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4317 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4319 sv_setiv(sv, (IV)(sent->s_port));
4321 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4322 sv_setpv(sv, sent->s_proto);
4327 DIE(PL_no_sock_func, "getservent");
4334 #ifdef HAS_SETHOSTENT
4335 PerlSock_sethostent(TOPi);
4338 DIE(PL_no_sock_func, "sethostent");
4345 #ifdef HAS_SETNETENT
4346 PerlSock_setnetent(TOPi);
4349 DIE(PL_no_sock_func, "setnetent");
4356 #ifdef HAS_SETPROTOENT
4357 PerlSock_setprotoent(TOPi);
4360 DIE(PL_no_sock_func, "setprotoent");
4367 #ifdef HAS_SETSERVENT
4368 PerlSock_setservent(TOPi);
4371 DIE(PL_no_sock_func, "setservent");
4378 #ifdef HAS_ENDHOSTENT
4379 PerlSock_endhostent();
4383 DIE(PL_no_sock_func, "endhostent");
4390 #ifdef HAS_ENDNETENT
4391 PerlSock_endnetent();
4395 DIE(PL_no_sock_func, "endnetent");
4402 #ifdef HAS_ENDPROTOENT
4403 PerlSock_endprotoent();
4407 DIE(PL_no_sock_func, "endprotoent");
4414 #ifdef HAS_ENDSERVENT
4415 PerlSock_endservent();
4419 DIE(PL_no_sock_func, "endservent");
4426 return pp_gpwent(ARGS);
4428 DIE(PL_no_func, "getpwnam");
4435 return pp_gpwent(ARGS);
4437 DIE(PL_no_func, "getpwuid");
4444 #if defined(HAS_PASSWD) && defined(HAS_GETPWENT)
4445 I32 which = PL_op->op_type;
4447 struct passwd *pwent;
4450 if (which == OP_GPWNAM)
4451 pwent = getpwnam(POPpx);
4452 else if (which == OP_GPWUID)
4453 pwent = getpwuid(POPi);
4455 pwent = (struct passwd *)getpwent();
4458 if (GIMME != G_ARRAY) {
4459 PUSHs(sv = sv_newmortal());
4461 if (which == OP_GPWNAM)
4462 sv_setiv(sv, (IV)pwent->pw_uid);
4464 sv_setpv(sv, pwent->pw_name);
4470 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4471 sv_setpv(sv, pwent->pw_name);
4473 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4475 sv_setpv(sv, pwent->pw_passwd);
4478 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4479 sv_setiv(sv, (IV)pwent->pw_uid);
4481 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4482 sv_setiv(sv, (IV)pwent->pw_gid);
4484 /* pw_change, pw_quota, and pw_age are mutually exclusive. */
4485 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4487 sv_setiv(sv, (IV)pwent->pw_change);
4490 sv_setiv(sv, (IV)pwent->pw_quota);
4493 sv_setpv(sv, pwent->pw_age);
4498 /* pw_class and pw_comment are mutually exclusive. */
4499 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4501 sv_setpv(sv, pwent->pw_class);
4504 sv_setpv(sv, pwent->pw_comment);
4508 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4510 sv_setpv(sv, pwent->pw_gecos);
4512 #ifndef INCOMPLETE_TAINTS
4513 /* pw_gecos is tainted because user himself can diddle with it. */
4517 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4518 sv_setpv(sv, pwent->pw_dir);
4520 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4521 sv_setpv(sv, pwent->pw_shell);
4524 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4525 sv_setiv(sv, (IV)pwent->pw_expire);
4530 DIE(PL_no_func, "getpwent");
4537 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT) && !defined(CYGWIN32)
4541 DIE(PL_no_func, "setpwent");
4548 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
4552 DIE(PL_no_func, "endpwent");
4559 return pp_ggrent(ARGS);
4561 DIE(PL_no_func, "getgrnam");
4568 return pp_ggrent(ARGS);
4570 DIE(PL_no_func, "getgrgid");
4577 #if defined(HAS_GROUP) && defined(HAS_GETGRENT)
4578 I32 which = PL_op->op_type;
4579 register char **elem;
4581 struct group *grent;
4584 if (which == OP_GGRNAM)
4585 grent = (struct group *)getgrnam(POPpx);
4586 else if (which == OP_GGRGID)
4587 grent = (struct group *)getgrgid(POPi);
4589 grent = (struct group *)getgrent();
4592 if (GIMME != G_ARRAY) {
4593 PUSHs(sv = sv_newmortal());
4595 if (which == OP_GGRNAM)
4596 sv_setiv(sv, (IV)grent->gr_gid);
4598 sv_setpv(sv, grent->gr_name);
4604 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4605 sv_setpv(sv, grent->gr_name);
4607 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4609 sv_setpv(sv, grent->gr_passwd);
4612 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4613 sv_setiv(sv, (IV)grent->gr_gid);
4615 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4616 for (elem = grent->gr_mem; elem && *elem; elem++) {
4617 sv_catpv(sv, *elem);
4619 sv_catpvn(sv, " ", 1);
4625 DIE(PL_no_func, "getgrent");
4632 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
4636 DIE(PL_no_func, "setgrent");
4643 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
4647 DIE(PL_no_func, "endgrent");
4657 if (!(tmps = PerlProc_getlogin()))
4659 PUSHp(tmps, strlen(tmps));
4662 DIE(PL_no_func, "getlogin");
4666 /* Miscellaneous. */
4671 djSP; dMARK; dORIGMARK; dTARGET;
4672 register I32 items = SP - MARK;
4673 unsigned long a[20];
4680 while (++MARK <= SP) {
4681 if (SvTAINTED(*MARK)) {
4687 TAINT_PROPER("syscall");
4690 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4691 * or where sizeof(long) != sizeof(char*). But such machines will
4692 * not likely have syscall implemented either, so who cares?
4694 while (++MARK <= SP) {
4695 if (SvNIOK(*MARK) || !i)
4696 a[i++] = SvIV(*MARK);
4697 else if (*MARK == &PL_sv_undef)
4700 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
4706 DIE("Too many args to syscall");
4708 DIE("Too few args to syscall");
4710 retval = syscall(a[0]);
4713 retval = syscall(a[0],a[1]);
4716 retval = syscall(a[0],a[1],a[2]);
4719 retval = syscall(a[0],a[1],a[2],a[3]);
4722 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4725 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4728 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4731 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4735 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4738 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4741 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4745 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4749 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4753 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4754 a[10],a[11],a[12],a[13]);
4756 #endif /* atarist */
4762 DIE(PL_no_func, "syscall");
4766 #ifdef FCNTL_EMULATE_FLOCK
4768 /* XXX Emulate flock() with fcntl().
4769 What's really needed is a good file locking module.
4773 fcntl_emulate_flock(int fd, int operation)
4777 switch (operation & ~LOCK_NB) {
4779 flock.l_type = F_RDLCK;
4782 flock.l_type = F_WRLCK;
4785 flock.l_type = F_UNLCK;
4791 flock.l_whence = SEEK_SET;
4792 flock.l_start = flock.l_len = 0L;
4794 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4797 #endif /* FCNTL_EMULATE_FLOCK */
4799 #ifdef LOCKF_EMULATE_FLOCK
4801 /* XXX Emulate flock() with lockf(). This is just to increase
4802 portability of scripts. The calls are not completely
4803 interchangeable. What's really needed is a good file
4807 /* The lockf() constants might have been defined in <unistd.h>.
4808 Unfortunately, <unistd.h> causes troubles on some mixed
4809 (BSD/POSIX) systems, such as SunOS 4.1.3.
4811 Further, the lockf() constants aren't POSIX, so they might not be
4812 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4813 just stick in the SVID values and be done with it. Sigh.
4817 # define F_ULOCK 0 /* Unlock a previously locked region */
4820 # define F_LOCK 1 /* Lock a region for exclusive use */
4823 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4826 # define F_TEST 3 /* Test a region for other processes locks */
4830 lockf_emulate_flock (fd, operation)
4838 /* flock locks entire file so for lockf we need to do the same */
4840 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
4841 if (pos > 0) /* is seekable and needs to be repositioned */
4842 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
4843 pos = -1; /* seek failed, so don't seek back afterwards */
4846 switch (operation) {
4848 /* LOCK_SH - get a shared lock */
4850 /* LOCK_EX - get an exclusive lock */
4852 i = lockf (fd, F_LOCK, 0);
4855 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4856 case LOCK_SH|LOCK_NB:
4857 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4858 case LOCK_EX|LOCK_NB:
4859 i = lockf (fd, F_TLOCK, 0);
4861 if ((errno == EAGAIN) || (errno == EACCES))
4862 errno = EWOULDBLOCK;
4865 /* LOCK_UN - unlock (non-blocking is a no-op) */
4867 case LOCK_UN|LOCK_NB:
4868 i = lockf (fd, F_ULOCK, 0);
4871 /* Default - can't decipher operation */
4878 if (pos > 0) /* need to restore position of the handle */
4879 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
4884 #endif /* LOCKF_EMULATE_FLOCK */