3 * Copyright (c) 1991-1997, 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(newSVpv("", 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();
405 if (SP - MARK != 1) {
407 do_join(TARG, &PL_sv_no, MARK, SP);
408 tmps = SvPV(TARG, n_a);
412 tmps = SvPV(TOPs, n_a);
414 if (!tmps || !*tmps) {
416 (void)SvUPGRADE(error, SVt_PV);
417 if (SvPOK(error) && SvCUR(error))
418 sv_catpv(error, "\t...caught");
419 tmps = SvPV(error, n_a);
422 tmps = "Warning: something's wrong";
434 if (SP - MARK != 1) {
436 do_join(TARG, &PL_sv_no, MARK, SP);
437 tmps = SvPV(TARG, n_a);
442 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, n_a);
444 if (!tmps || !*tmps) {
446 (void)SvUPGRADE(error, SVt_PV);
447 if(tmpsv ? SvROK(tmpsv) : SvROK(error)) {
449 SvSetSV(error,tmpsv);
450 else if(sv_isobject(error)) {
451 HV *stash = SvSTASH(SvRV(error));
452 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
454 SV *file = sv_2mortal(newSVsv(GvSV(PL_curcop->cop_filegv)));
455 SV *line = sv_2mortal(newSViv(PL_curcop->cop_line));
462 perl_call_sv((SV*)GvCV(gv),
463 G_SCALAR|G_EVAL|G_KEEPERR);
464 sv_setsv(error,*PL_stack_sp--);
470 if (SvPOK(error) && SvCUR(error))
471 sv_catpv(error, "\t...propagated");
472 tmps = SvPV(error, n_a);
493 DIE(PL_no_usym, "filehandle");
498 DIE(PL_no_usym, "filehandle");
500 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
501 tmps = SvPV(sv, len);
502 if (do_open(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp))
503 PUSHi( (I32)PL_forkprocess );
504 else if (PL_forkprocess == 0) /* we are a new child */
522 if (mg = SvTIED_mg((SV*)gv, 'q')) {
524 XPUSHs(SvTIED_obj((SV*)gv, mg));
527 perl_call_method("CLOSE", G_SCALAR);
533 PUSHs(boolSV(do_close(gv, TRUE)));
553 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
554 DIE(PL_no_usym, "filehandle");
559 do_close(rgv, FALSE);
561 do_close(wgv, FALSE);
563 if (PerlProc_pipe(fd) < 0)
566 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
567 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
568 IoIFP(wstio) = IoOFP(wstio);
572 if (!IoIFP(rstio) || !IoOFP(wstio)) {
573 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
574 else PerlLIO_close(fd[0]);
575 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
576 else PerlLIO_close(fd[1]);
579 #if defined(HAS_FCNTL) && defined(F_SETFD)
580 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
581 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
588 DIE(PL_no_func, "pipe");
601 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
603 PUSHi(PerlIO_fileno(fp));
614 anum = PerlLIO_umask(0);
615 (void)PerlLIO_umask(anum);
618 anum = PerlLIO_umask(POPi);
619 TAINT_PROPER("umask");
622 /* Only DIE if trying to restrict permissions on `user' (self).
623 * Otherwise it's harmless and more useful to just return undef
624 * since 'group' and 'other' concepts probably don't exist here. */
625 if (MAXARG >= 1 && (POPi & 0700))
626 DIE("umask not implemented");
627 XPUSHs(&PL_sv_undef);
645 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
648 if (do_binmode(fp,IoTYPE(io),TRUE))
663 I32 markoff = MARK - PL_stack_base;
670 switch(SvTYPE(varsv)) {
672 methname = "TIEHASH";
675 methname = "TIEARRAY";
678 methname = "TIEHANDLE";
682 methname = "TIESCALAR";
687 if (sv_isobject(*MARK)) {
689 PUSHSTACKi(PERLSI_MAGIC);
695 perl_call_method(methname, G_SCALAR);
698 /* Not clear why we don't call perl_call_method here too.
699 * perhaps to get different error message ?
701 stash = gv_stashsv(*MARK, FALSE);
702 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
703 DIE("Can't locate object method \"%s\" via package \"%s\"",
704 methname, SvPV(*MARK,n_a));
707 PUSHSTACKi(PERLSI_MAGIC);
713 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
719 if (sv_isobject(sv)) {
720 sv_unmagic(varsv, how);
721 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
724 SP = PL_stack_base + markoff;
733 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
735 if (ckWARN(WARN_UNTIE)) {
737 if (mg = SvTIED_mg(sv, how)) {
738 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
740 "untie attempted while %lu inner references still exist",
741 (unsigned long)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
753 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
756 if (mg = SvTIED_mg(sv, how)) {
757 SV *osv = SvTIED_obj(sv, mg);
758 if (osv == mg->mg_obj)
759 osv = sv_mortalcopy(osv);
777 sv = sv_mortalcopy(&PL_sv_no);
778 sv_setpv(sv, "AnyDBM_File");
779 stash = gv_stashsv(sv, FALSE);
780 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
782 perl_require_pv("AnyDBM_File.pm");
784 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
785 DIE("No dbm on this machine");
795 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
797 PUSHs(sv_2mortal(newSViv(O_RDWR)));
800 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
803 if (!sv_isobject(TOPs)) {
808 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
811 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
815 if (sv_isobject(TOPs)) {
816 sv_unmagic((SV *) hv, 'P');
817 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
825 return pp_untie(ARGS);
839 struct timeval timebuf;
840 struct timeval *tbuf = &timebuf;
844 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
849 # if BYTEORDER & 0xf0000
850 # define ORDERBYTE (0x88888888 - BYTEORDER)
852 # define ORDERBYTE (0x4444 - BYTEORDER)
858 for (i = 1; i <= 3; i++) {
866 /* little endians can use vecs directly */
867 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
868 # if SELECT_MIN_BITS > 1
869 /* If SELECT_MIN_BITS is greater than one we most probably will want
870 * to align the sizes with SELECT_MIN_BITS/8 because for example
871 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
872 * UNIX, Solaris, NeXT) the smallest quantum select() operates on
873 * (sets bit) is 32 bits. */
874 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
876 growsize = sizeof(fd_set);
885 masksize = NFDBITS / NBBY;
887 masksize = sizeof(long); /* documented int, everyone seems to use long */
889 growsize = maxlen + (masksize - (maxlen % masksize));
890 Zero(&fd_sets[0], 4, char*);
898 timebuf.tv_sec = (long)value;
899 value -= (double)timebuf.tv_sec;
900 timebuf.tv_usec = (long)(value * 1000000.0);
903 tbuf = Null(struct timeval*);
905 for (i = 1; i <= 3; i++) {
912 SvPV_force(sv,n_a); /* force string conversion */
915 Sv_Grow(sv, growsize);
919 while (++j <= growsize) {
923 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
925 New(403, fd_sets[i], growsize, char);
926 for (offset = 0; offset < growsize; offset += masksize) {
927 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
928 fd_sets[i][j+offset] = s[(k % masksize) + offset];
931 fd_sets[i] = SvPVX(sv);
935 nfound = PerlSock_select(
937 (Select_fd_set_t) fd_sets[1],
938 (Select_fd_set_t) fd_sets[2],
939 (Select_fd_set_t) fd_sets[3],
941 for (i = 1; i <= 3; i++) {
944 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
946 for (offset = 0; offset < growsize; offset += masksize) {
947 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
948 s[(k % masksize) + offset] = fd_sets[i][j+offset];
950 Safefree(fd_sets[i]);
957 if (GIMME == G_ARRAY && tbuf) {
958 value = (double)(timebuf.tv_sec) +
959 (double)(timebuf.tv_usec) / 1000000.0;
960 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
965 DIE("select not implemented");
974 (void)SvREFCNT_inc(gv);
976 SvREFCNT_dec(PL_defoutgv);
986 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
988 egv = GvEGV(PL_defoutgv);
993 XPUSHs(&PL_sv_undef);
995 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
996 if (gvp && *gvp == egv) {
997 gv_efullname3(TARG, PL_defoutgv, Nullch);
1001 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1006 if (!GvIO(newdefout)) {
1007 if (ckWARN(WARN_UNOPENED))
1008 warner(WARN_UNOPENED, "select() on unopened file");
1009 if (SvTYPE(newdefout) != SVt_PVGV)
1011 gv_IOadd(newdefout); /* XXX probably bogus */
1013 setdefout(newdefout);
1032 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1033 I32 gimme = GIMME_V;
1035 XPUSHs(SvTIED_obj((SV*)gv, mg));
1038 perl_call_method("GETC", gimme);
1041 if (gimme == G_SCALAR)
1042 SvSetMagicSV_nosteal(TARG, TOPs);
1045 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1048 sv_setpv(TARG, " ");
1049 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1056 return pp_sysread(ARGS);
1060 doform(CV *cv, GV *gv, OP *retop)
1063 register PERL_CONTEXT *cx;
1064 I32 gimme = GIMME_V;
1065 AV* padlist = CvPADLIST(cv);
1066 SV** svp = AvARRAY(padlist);
1072 PUSHBLOCK(cx, CXt_SUB, PL_stack_sp);
1074 SAVESPTR(PL_curpad);
1075 PL_curpad = AvARRAY((AV*)svp[1]);
1077 setdefout(gv); /* locally select filehandle so $% et al work */
1109 SV *tmpsv = sv_newmortal();
1110 gv_efullname3(tmpsv, fgv, Nullch);
1111 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
1113 DIE("Not a format reference");
1116 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1118 IoFLAGS(io) &= ~IOf_DIDTOP;
1119 return doform(cv,gv,PL_op->op_next);
1125 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1126 register IO *io = GvIOp(gv);
1127 PerlIO *ofp = IoOFP(io);
1131 register PERL_CONTEXT *cx;
1133 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1134 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1135 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1136 PL_formtarget != PL_toptarget)
1140 if (!IoTOP_GV(io)) {
1144 if (!IoTOP_NAME(io)) {
1145 if (!IoFMT_NAME(io))
1146 IoFMT_NAME(io) = savepv(GvNAME(gv));
1147 topname = sv_2mortal(newSVpvf("%s_TOP", IoFMT_NAME(io)));
1148 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1149 if ((topgv && GvFORM(topgv)) ||
1150 !gv_fetchpv("top",FALSE,SVt_PVFM))
1151 IoTOP_NAME(io) = savepv(SvPVX(topname));
1153 IoTOP_NAME(io) = savepv("top");
1155 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1156 if (!topgv || !GvFORM(topgv)) {
1157 IoLINES_LEFT(io) = 100000000;
1160 IoTOP_GV(io) = topgv;
1162 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1163 I32 lines = IoLINES_LEFT(io);
1164 char *s = SvPVX(PL_formtarget);
1165 if (lines <= 0) /* Yow, header didn't even fit!!! */
1167 while (lines-- > 0) {
1168 s = strchr(s, '\n');
1174 PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
1175 sv_chop(PL_formtarget, s);
1176 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1179 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1180 PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
1181 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1183 PL_formtarget = PL_toptarget;
1184 IoFLAGS(io) |= IOf_DIDTOP;
1187 DIE("bad top format reference");
1190 SV *tmpsv = sv_newmortal();
1191 gv_efullname3(tmpsv, fgv, Nullch);
1192 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
1195 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1196 return doform(cv,gv,PL_op);
1200 POPBLOCK(cx,PL_curpm);
1206 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1208 warner(WARN_IO, "Filehandle only opened for input");
1209 else if (ckWARN(WARN_CLOSED))
1210 warner(WARN_CLOSED, "Write on closed filehandle");
1215 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1216 if (ckWARN(WARN_IO))
1217 warner(WARN_IO, "page overflow");
1219 if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
1223 FmLINES(PL_formtarget) = 0;
1224 SvCUR_set(PL_formtarget, 0);
1225 *SvEND(PL_formtarget) = '\0';
1226 if (IoFLAGS(io) & IOf_FLUSH)
1227 (void)PerlIO_flush(fp);
1231 PL_formtarget = PL_bodytarget;
1233 return pop_return();
1238 djSP; dMARK; dORIGMARK;
1246 if (PL_op->op_flags & OPf_STACKED)
1251 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1252 if (MARK == ORIGMARK) {
1255 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1259 *MARK = SvTIED_obj((SV*)gv, mg);
1262 perl_call_method("PRINTF", G_SCALAR);
1265 MARK = ORIGMARK + 1;
1272 if (!(io = GvIO(gv))) {
1273 if (ckWARN(WARN_UNOPENED)) {
1274 gv_fullname3(sv, gv, Nullch);
1275 warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,n_a));
1277 SETERRNO(EBADF,RMS$_IFI);
1280 else if (!(fp = IoOFP(io))) {
1281 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1282 gv_fullname3(sv, gv, Nullch);
1284 warner(WARN_IO, "Filehandle %s opened only for input",
1286 else if (ckWARN(WARN_CLOSED))
1287 warner(WARN_CLOSED, "printf on closed filehandle %s",
1290 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1294 #ifdef USE_LOCALE_NUMERIC
1295 if (PL_op->op_private & OPpLOCALE)
1296 SET_NUMERIC_LOCAL();
1298 SET_NUMERIC_STANDARD();
1300 do_sprintf(sv, SP - MARK, MARK + 1);
1301 if (!do_print(sv, fp))
1304 if (IoFLAGS(io) & IOf_FLUSH)
1305 if (PerlIO_flush(fp) == EOF)
1316 PUSHs(&PL_sv_undef);
1337 tmps = SvPV(sv, len);
1338 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1339 IoLINES(GvIOp(gv)) = 0;
1343 PUSHs(&PL_sv_undef);
1350 djSP; dMARK; dORIGMARK; dTARGET;
1356 Sock_size_t bufsize;
1362 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1363 (mg = SvTIED_mg((SV*)gv, 'q')))
1368 *MARK = SvTIED_obj((SV*)gv, mg);
1370 perl_call_method("READ", G_SCALAR);
1383 sv_setpvn(bufsv, "", 0);
1384 buffer = SvPV_force(bufsv, blen);
1385 length = SvIVx(*++MARK);
1387 DIE("Negative length");
1390 offset = SvIVx(*++MARK);
1394 if (!io || !IoIFP(io))
1397 if (PL_op->op_type == OP_RECV) {
1398 char namebuf[MAXPATHLEN];
1399 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1400 bufsize = sizeof (struct sockaddr_in);
1402 bufsize = sizeof namebuf;
1404 buffer = SvGROW(bufsv, length+1);
1405 /* 'offset' means 'flags' here */
1406 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1407 (struct sockaddr *)namebuf, &bufsize);
1410 SvCUR_set(bufsv, length);
1411 *SvEND(bufsv) = '\0';
1412 (void)SvPOK_only(bufsv);
1414 /* This should not be marked tainted if the fp is marked clean */
1415 if (!(IoFLAGS(io) & IOf_UNTAINT))
1416 SvTAINTED_on(bufsv);
1418 sv_setpvn(TARG, namebuf, bufsize);
1423 if (PL_op->op_type == OP_RECV)
1424 DIE(PL_no_sock_func, "recv");
1428 DIE("Offset outside string");
1431 bufsize = SvCUR(bufsv);
1432 buffer = SvGROW(bufsv, length+offset+1);
1433 if (offset > bufsize) { /* Zero any newly allocated space */
1434 Zero(buffer+bufsize, offset-bufsize, char);
1436 if (PL_op->op_type == OP_SYSREAD) {
1437 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1438 if (IoTYPE(io) == 's') {
1439 length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1440 buffer+offset, length, 0);
1445 length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1446 buffer+offset, length);
1450 #ifdef HAS_SOCKET__bad_code_maybe
1451 if (IoTYPE(io) == 's') {
1452 char namebuf[MAXPATHLEN];
1453 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1454 bufsize = sizeof (struct sockaddr_in);
1456 bufsize = sizeof namebuf;
1458 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1459 (struct sockaddr *)namebuf, &bufsize);
1464 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1465 /* fread() returns 0 on both error and EOF */
1466 if (length == 0 && PerlIO_error(IoIFP(io)))
1471 SvCUR_set(bufsv, length+offset);
1472 *SvEND(bufsv) = '\0';
1473 (void)SvPOK_only(bufsv);
1475 /* This should not be marked tainted if the fp is marked clean */
1476 if (!(IoFLAGS(io) & IOf_UNTAINT))
1477 SvTAINTED_on(bufsv);
1490 int items = (SP - PL_stack_base) - TOPMARK;
1494 sv = sv_2mortal(newSViv(sv_len(*SP)));
1498 return pp_send(ARGS);
1503 djSP; dMARK; dORIGMARK; dTARGET;
1514 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1518 *MARK = SvTIED_obj((SV*)gv, mg);
1520 perl_call_method("WRITE", G_SCALAR);
1531 buffer = SvPV(bufsv, blen);
1532 length = SvIVx(*++MARK);
1534 DIE("Negative length");
1537 if (!io || !IoIFP(io)) {
1539 if (ckWARN(WARN_CLOSED)) {
1540 if (PL_op->op_type == OP_SYSWRITE)
1541 warner(WARN_CLOSED, "Syswrite on closed filehandle");
1543 warner(WARN_CLOSED, "Send on closed socket");
1546 else if (PL_op->op_type == OP_SYSWRITE) {
1548 offset = SvIVx(*++MARK);
1551 DIE("Offset outside string");
1553 } else if (offset >= blen && blen > 0)
1554 DIE("Offset outside string");
1557 if (length > blen - offset)
1558 length = blen - offset;
1559 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1560 if (IoTYPE(io) == 's') {
1561 length = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1562 buffer+offset, length, 0);
1567 length = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1568 buffer+offset, length);
1572 else if (SP > MARK) {
1575 sockbuf = SvPVx(*++MARK, mlen);
1576 length = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1577 (struct sockaddr *)sockbuf, mlen);
1580 length = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1584 DIE(PL_no_sock_func, "send");
1599 return pp_sysread(ARGS);
1610 gv = PL_last_in_gv = (GV*)POPs;
1611 PUSHs(boolSV(!gv || do_eof(gv)));
1623 gv = PL_last_in_gv = (GV*)POPs;
1624 PUSHi( do_tell(gv) );
1630 return pp_sysseek(ARGS);
1638 Off_t offset = POPl;
1640 gv = PL_last_in_gv = (GV*)POPs;
1641 if (PL_op->op_type == OP_SEEK)
1642 PUSHs(boolSV(do_seek(gv, offset, whence)));
1644 Off_t n = do_sysseek(gv, offset, whence);
1645 PUSHs((n < 0) ? &PL_sv_undef
1646 : sv_2mortal(n ? newSViv((IV)n)
1647 : newSVpv(zero_but_true, ZBTLEN)));
1655 Off_t len = (Off_t)POPn;
1661 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1662 if (PL_op->op_flags & OPf_SPECIAL) {
1663 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
1665 TAINT_PROPER("truncate");
1666 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1668 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1670 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1679 if (SvTYPE(sv) == SVt_PVGV) {
1680 tmpgv = (GV*)sv; /* *main::FRED for example */
1683 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1684 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1688 name = SvPV(sv, n_a);
1689 TAINT_PROPER("truncate");
1691 if (truncate(name, len) < 0)
1696 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
1699 if (my_chsize(tmpfd, len) < 0)
1701 PerlLIO_close(tmpfd);
1710 SETERRNO(EBADF,RMS$_IFI);
1713 DIE("truncate not implemented");
1719 return pp_ioctl(ARGS);
1726 unsigned int func = U_I(POPn);
1727 int optype = PL_op->op_type;
1733 if (!io || !argsv || !IoIFP(io)) {
1734 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1738 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1741 s = SvPV_force(argsv, len);
1742 need = IOCPARM_LEN(func);
1744 s = Sv_Grow(argsv, need + 1);
1745 SvCUR_set(argsv, need);
1748 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1751 retval = SvIV(argsv);
1752 s = (char*)retval; /* ouch */
1755 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1757 if (optype == OP_IOCTL)
1759 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1761 DIE("ioctl is not implemented");
1765 #if defined(OS2) && defined(__EMX__)
1766 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1768 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1771 DIE("fcntl is not implemented");
1775 if (s[SvCUR(argsv)] != 17)
1776 DIE("Possible memory corruption: %s overflowed 3rd argument",
1777 PL_op_name[optype]);
1778 s[SvCUR(argsv)] = 0; /* put our null back */
1779 SvSETMAGIC(argsv); /* Assume it has changed */
1788 PUSHp(zero_but_true, ZBTLEN);
1808 fp = IoIFP(GvIOp(gv));
1812 (void)PerlIO_flush(fp);
1813 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
1820 DIE(PL_no_func, "flock()");
1832 int protocol = POPi;
1840 SETERRNO(EBADF,LIB$_INVARG);
1846 do_close(gv, FALSE);
1848 TAINT_PROPER("socket");
1849 fd = PerlSock_socket(domain, type, protocol);
1852 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1853 IoOFP(io) = PerlIO_fdopen(fd, "w");
1855 if (!IoIFP(io) || !IoOFP(io)) {
1856 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1857 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1858 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
1864 DIE(PL_no_sock_func, "socket");
1871 #ifdef HAS_SOCKETPAIR
1876 int protocol = POPi;
1889 do_close(gv1, FALSE);
1891 do_close(gv2, FALSE);
1893 TAINT_PROPER("socketpair");
1894 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
1896 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1897 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1899 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1900 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1902 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1903 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1904 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1905 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
1906 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1907 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1908 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
1914 DIE(PL_no_sock_func, "socketpair");
1922 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
1923 extern GETPRIVMODE();
1924 extern GETUSERMODE();
1929 register IO *io = GvIOn(gv);
1933 int mpeprivmode = 0;
1936 if (!io || !IoIFP(io))
1939 addr = SvPV(addrsv, len);
1940 TAINT_PROPER("bind");
1941 #ifdef MPE /* Deal with MPE bind() peculiarities */
1942 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
1943 /* The address *MUST* stupidly be zero. */
1944 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
1945 /* PRIV mode is required to bind() to ports < 1024. */
1946 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
1947 ((struct sockaddr_in *)addr)->sin_port > 0) {
1948 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
1953 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
1954 (struct sockaddr *)addr, len) >= 0)
1957 #ifdef MPE /* Switch back to USER mode */
1968 if (ckWARN(WARN_CLOSED))
1969 warner(WARN_CLOSED, "bind() on closed fd");
1970 SETERRNO(EBADF,SS$_IVCHAN);
1973 DIE(PL_no_sock_func, "bind");
1984 register IO *io = GvIOn(gv);
1987 if (!io || !IoIFP(io))
1990 addr = SvPV(addrsv, len);
1991 TAINT_PROPER("connect");
1992 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1998 if (ckWARN(WARN_CLOSED))
1999 warner(WARN_CLOSED, "connect() on closed fd");
2000 SETERRNO(EBADF,SS$_IVCHAN);
2003 DIE(PL_no_sock_func, "connect");
2013 register IO *io = GvIOn(gv);
2015 if (!io || !IoIFP(io))
2018 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2024 if (ckWARN(WARN_CLOSED))
2025 warner(WARN_CLOSED, "listen() on closed fd");
2026 SETERRNO(EBADF,SS$_IVCHAN);
2029 DIE(PL_no_sock_func, "listen");
2041 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2042 Sock_size_t len = sizeof saddr;
2054 if (!gstio || !IoIFP(gstio))
2059 do_close(ngv, FALSE);
2061 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2064 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2065 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2066 IoTYPE(nstio) = 's';
2067 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2068 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2069 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2070 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2074 PUSHp((char *)&saddr, len);
2078 if (ckWARN(WARN_CLOSED))
2079 warner(WARN_CLOSED, "accept() on closed fd");
2080 SETERRNO(EBADF,SS$_IVCHAN);
2086 DIE(PL_no_sock_func, "accept");
2096 register IO *io = GvIOn(gv);
2098 if (!io || !IoIFP(io))
2101 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2105 if (ckWARN(WARN_CLOSED))
2106 warner(WARN_CLOSED, "shutdown() on closed fd");
2107 SETERRNO(EBADF,SS$_IVCHAN);
2110 DIE(PL_no_sock_func, "shutdown");
2117 return pp_ssockopt(ARGS);
2119 DIE(PL_no_sock_func, "getsockopt");
2127 int optype = PL_op->op_type;
2130 unsigned int optname;
2136 if (optype == OP_GSOCKOPT)
2137 sv = sv_2mortal(NEWSV(22, 257));
2140 optname = (unsigned int) POPi;
2141 lvl = (unsigned int) POPi;
2145 if (!io || !IoIFP(io))
2148 fd = PerlIO_fileno(IoIFP(io));
2152 (void)SvPOK_only(sv);
2156 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2171 aint = (int)SvIV(sv);
2175 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2184 if (ckWARN(WARN_CLOSED))
2185 warner(WARN_CLOSED, "[gs]etsockopt() on closed fd");
2186 SETERRNO(EBADF,SS$_IVCHAN);
2191 DIE(PL_no_sock_func, "setsockopt");
2198 return pp_getpeername(ARGS);
2200 DIE(PL_no_sock_func, "getsockname");
2208 int optype = PL_op->op_type;
2212 register IO *io = GvIOn(gv);
2215 if (!io || !IoIFP(io))
2218 sv = sv_2mortal(NEWSV(22, 257));
2219 (void)SvPOK_only(sv);
2223 fd = PerlIO_fileno(IoIFP(io));
2225 case OP_GETSOCKNAME:
2226 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2229 case OP_GETPEERNAME:
2230 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2232 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2234 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2235 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2236 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2237 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2238 sizeof(u_short) + sizeof(struct in_addr))) {
2245 #ifdef BOGUS_GETNAME_RETURN
2246 /* Interactive Unix, getpeername() and getsockname()
2247 does not return valid namelen */
2248 if (len == BOGUS_GETNAME_RETURN)
2249 len = sizeof(struct sockaddr);
2257 if (ckWARN(WARN_CLOSED))
2258 warner(WARN_CLOSED, "get{sock, peer}name() on closed fd");
2259 SETERRNO(EBADF,SS$_IVCHAN);
2264 DIE(PL_no_sock_func, "getpeername");
2272 return pp_stat(ARGS);
2283 if (PL_op->op_flags & OPf_REF) {
2284 tmpgv = cGVOP->op_gv;
2286 if (tmpgv != PL_defgv) {
2287 PL_laststype = OP_STAT;
2289 sv_setpv(PL_statname, "");
2290 PL_laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
2291 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &PL_statcache) : -1);
2293 if (PL_laststatval < 0)
2298 if (SvTYPE(sv) == SVt_PVGV) {
2302 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2303 tmpgv = (GV*)SvRV(sv);
2306 sv_setpv(PL_statname, SvPV(sv,n_a));
2309 PL_laststype = PL_op->op_type;
2310 if (PL_op->op_type == OP_LSTAT)
2311 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2314 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2315 if (PL_laststatval < 0) {
2316 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2317 warner(WARN_NEWLINE, PL_warn_nl, "stat");
2323 if (gimme != G_ARRAY) {
2324 if (gimme != G_VOID)
2325 XPUSHs(boolSV(max));
2331 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_dev)));
2332 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ino)));
2333 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mode)));
2334 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_nlink)));
2335 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_uid)));
2336 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_gid)));
2337 #ifdef USE_STAT_RDEV
2338 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_rdev)));
2340 PUSHs(sv_2mortal(newSVpv("", 0)));
2342 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_size)));
2344 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_atime)));
2345 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_mtime)));
2346 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_ctime)));
2348 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_atime)));
2349 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mtime)));
2350 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ctime)));
2352 #ifdef USE_STAT_BLOCKS
2353 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blksize)));
2354 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blocks)));
2356 PUSHs(sv_2mortal(newSVpv("", 0)));
2357 PUSHs(sv_2mortal(newSVpv("", 0)));
2367 #if defined(HAS_ACCESS) && defined(R_OK)
2369 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2370 result = access(TOPpx, R_OK);
2378 result = my_stat(ARGS);
2380 result = my_stat(ARGS);
2385 if (cando(S_IRUSR, 0, &PL_statcache))
2394 #if defined(HAS_ACCESS) && defined(W_OK)
2396 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2397 result = access(TOPpx, W_OK);
2405 result = my_stat(ARGS);
2407 result = my_stat(ARGS);
2412 if (cando(S_IWUSR, 0, &PL_statcache))
2421 #if defined(HAS_ACCESS) && defined(X_OK)
2423 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2424 result = access(TOPpx, X_OK);
2432 result = my_stat(ARGS);
2434 result = my_stat(ARGS);
2439 if (cando(S_IXUSR, 0, &PL_statcache))
2448 #ifdef PERL_EFF_ACCESS_R_OK
2450 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2451 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2459 result = my_stat(ARGS);
2461 result = my_stat(ARGS);
2466 if (cando(S_IRUSR, 1, &PL_statcache))
2475 #ifdef PERL_EFF_ACCESS_W_OK
2477 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2478 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2486 result = my_stat(ARGS);
2488 result = my_stat(ARGS);
2493 if (cando(S_IWUSR, 1, &PL_statcache))
2502 #ifdef PERL_EFF_ACCESS_X_OK
2504 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2505 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2513 result = my_stat(ARGS);
2515 result = my_stat(ARGS);
2520 if (cando(S_IXUSR, 1, &PL_statcache))
2527 I32 result = my_stat(ARGS);
2536 return pp_ftrowned(ARGS);
2541 I32 result = my_stat(ARGS);
2545 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ? PL_euid : PL_uid) )
2552 I32 result = my_stat(ARGS);
2556 if (!PL_statcache.st_size)
2563 I32 result = my_stat(ARGS);
2567 PUSHi(PL_statcache.st_size);
2573 I32 result = my_stat(ARGS);
2577 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_mtime) / 86400.0 );
2583 I32 result = my_stat(ARGS);
2587 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_atime) / 86400.0 );
2593 I32 result = my_stat(ARGS);
2597 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_ctime) / 86400.0 );
2603 I32 result = my_stat(ARGS);
2607 if (S_ISSOCK(PL_statcache.st_mode))
2614 I32 result = my_stat(ARGS);
2618 if (S_ISCHR(PL_statcache.st_mode))
2625 I32 result = my_stat(ARGS);
2629 if (S_ISBLK(PL_statcache.st_mode))
2636 I32 result = my_stat(ARGS);
2640 if (S_ISREG(PL_statcache.st_mode))
2647 I32 result = my_stat(ARGS);
2651 if (S_ISDIR(PL_statcache.st_mode))
2658 I32 result = my_stat(ARGS);
2662 if (S_ISFIFO(PL_statcache.st_mode))
2669 I32 result = my_lstat(ARGS);
2673 if (S_ISLNK(PL_statcache.st_mode))
2682 I32 result = my_stat(ARGS);
2686 if (PL_statcache.st_mode & S_ISUID)
2696 I32 result = my_stat(ARGS);
2700 if (PL_statcache.st_mode & S_ISGID)
2710 I32 result = my_stat(ARGS);
2714 if (PL_statcache.st_mode & S_ISVTX)
2725 char *tmps = Nullch;
2728 if (PL_op->op_flags & OPf_REF)
2730 else if (isGV(TOPs))
2732 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2733 gv = (GV*)SvRV(POPs);
2735 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
2737 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2738 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2739 else if (tmps && isDIGIT(*tmps))
2743 if (PerlLIO_isatty(fd))
2748 #if defined(atarist) /* this will work with atariST. Configure will
2749 make guesses for other systems. */
2750 # define FILE_base(f) ((f)->_base)
2751 # define FILE_ptr(f) ((f)->_ptr)
2752 # define FILE_cnt(f) ((f)->_cnt)
2753 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2763 register STDCHAR *s;
2769 if (PL_op->op_flags & OPf_REF)
2771 else if (isGV(TOPs))
2773 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2774 gv = (GV*)SvRV(POPs);
2780 if (gv == PL_defgv) {
2782 io = GvIO(PL_statgv);
2785 goto really_filename;
2790 PL_laststatval = -1;
2791 sv_setpv(PL_statname, "");
2792 io = GvIO(PL_statgv);
2794 if (io && IoIFP(io)) {
2795 if (! PerlIO_has_base(IoIFP(io)))
2796 DIE("-T and -B not implemented on filehandles");
2797 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2798 if (PL_laststatval < 0)
2800 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
2801 if (PL_op->op_type == OP_FTTEXT)
2805 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2806 i = PerlIO_getc(IoIFP(io));
2808 (void)PerlIO_ungetc(IoIFP(io),i);
2810 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2812 len = PerlIO_get_bufsiz(IoIFP(io));
2813 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2814 /* sfio can have large buffers - limit to 512 */
2819 if (ckWARN(WARN_UNOPENED))
2820 warner(WARN_UNOPENED, "Test on unopened file <%s>",
2821 GvENAME(cGVOP->op_gv));
2822 SETERRNO(EBADF,RMS$_IFI);
2830 PL_laststatval = -1;
2831 sv_setpv(PL_statname, SvPV(sv, n_a));
2833 i = PerlLIO_open3(SvPV(sv, n_a), O_RDONLY, 0);
2835 i = PerlLIO_open(SvPV(sv, n_a), 0);
2838 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
2839 warner(WARN_NEWLINE, PL_warn_nl, "open");
2842 PL_laststatval = PerlLIO_fstat(i, &PL_statcache);
2843 if (PL_laststatval < 0)
2845 len = PerlLIO_read(i, tbuf, 512);
2846 (void)PerlLIO_close(i);
2848 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
2849 RETPUSHNO; /* special case NFS directories */
2850 RETPUSHYES; /* null file is anything */
2855 /* now scan s to look for textiness */
2856 /* XXX ASCII dependent code */
2858 for (i = 0; i < len; i++, s++) {
2859 if (!*s) { /* null never allowed in text */
2864 else if (!(isPRINT(*s) || isSPACE(*s)))
2870 *s != '\n' && *s != '\r' && *s != '\b' &&
2871 *s != '\t' && *s != '\f' && *s != 27)
2876 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2884 return pp_fttext(ARGS);
2900 if (!tmps || !*tmps) {
2901 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
2903 tmps = SvPV(*svp, n_a);
2905 if (!tmps || !*tmps) {
2906 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
2908 tmps = SvPV(*svp, n_a);
2911 if (!tmps || !*tmps) {
2912 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
2914 tmps = SvPV(*svp, n_a);
2917 TAINT_PROPER("chdir");
2918 PUSHi( PerlDir_chdir(tmps) >= 0 );
2920 /* Clear the DEFAULT element of ENV so we'll get the new value
2922 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
2929 djSP; dMARK; dTARGET;
2932 value = (I32)apply(PL_op->op_type, MARK, SP);
2937 DIE(PL_no_func, "Unsupported function chown");
2948 TAINT_PROPER("chroot");
2949 PUSHi( chroot(tmps) >= 0 );
2952 DIE(PL_no_func, "chroot");
2958 djSP; dMARK; dTARGET;
2960 value = (I32)apply(PL_op->op_type, MARK, SP);
2968 djSP; dMARK; dTARGET;
2970 value = (I32)apply(PL_op->op_type, MARK, SP);
2978 djSP; dMARK; dTARGET;
2980 value = (I32)apply(PL_op->op_type, MARK, SP);
2992 char *tmps2 = POPpx;
2993 char *tmps = SvPV(TOPs, n_a);
2994 TAINT_PROPER("rename");
2996 anum = PerlLIO_rename(tmps, tmps2);
2998 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
2999 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3002 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3003 (void)UNLINK(tmps2);
3004 if (!(anum = link(tmps, tmps2)))
3005 anum = UNLINK(tmps);
3018 char *tmps2 = POPpx;
3019 char *tmps = SvPV(TOPs, n_a);
3020 TAINT_PROPER("link");
3021 SETi( link(tmps, tmps2) >= 0 );
3023 DIE(PL_no_func, "Unsupported function link");
3033 char *tmps2 = POPpx;
3034 char *tmps = SvPV(TOPs, n_a);
3035 TAINT_PROPER("symlink");
3036 SETi( symlink(tmps, tmps2) >= 0 );
3039 DIE(PL_no_func, "symlink");
3048 char buf[MAXPATHLEN];
3052 #ifndef INCOMPLETE_TAINTS
3056 len = readlink(tmps, buf, sizeof buf);
3064 RETSETUNDEF; /* just pretend it's a normal file */
3068 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3070 dooneliner(cmd, filename)
3074 char *save_filename = filename;
3080 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3081 strcpy(cmdline, cmd);
3082 strcat(cmdline, " ");
3083 for (s = cmdline + strlen(cmdline); *filename; ) {
3088 myfp = PerlProc_popen(cmdline, "r");
3092 SV *tmpsv = sv_newmortal();
3093 /* Need to save/restore 'PL_rs' ?? */
3094 s = sv_gets(tmpsv, myfp, 0);
3095 (void)PerlProc_pclose(myfp);
3099 #ifdef HAS_SYS_ERRLIST
3104 /* you don't see this */
3106 #ifdef HAS_SYS_ERRLIST
3114 if (instr(s, errmsg)) {
3121 #define EACCES EPERM
3123 if (instr(s, "cannot make"))
3124 SETERRNO(EEXIST,RMS$_FEX);
3125 else if (instr(s, "existing file"))
3126 SETERRNO(EEXIST,RMS$_FEX);
3127 else if (instr(s, "ile exists"))
3128 SETERRNO(EEXIST,RMS$_FEX);
3129 else if (instr(s, "non-exist"))
3130 SETERRNO(ENOENT,RMS$_FNF);
3131 else if (instr(s, "does not exist"))
3132 SETERRNO(ENOENT,RMS$_FNF);
3133 else if (instr(s, "not empty"))
3134 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3135 else if (instr(s, "cannot access"))
3136 SETERRNO(EACCES,RMS$_PRV);
3138 SETERRNO(EPERM,RMS$_PRV);
3141 else { /* some mkdirs return no failure indication */
3142 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3143 if (PL_op->op_type == OP_RMDIR)
3148 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3165 char *tmps = SvPV(TOPs, n_a);
3167 TAINT_PROPER("mkdir");
3169 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3171 SETi( dooneliner("mkdir", tmps) );
3172 oldumask = PerlLIO_umask(0);
3173 PerlLIO_umask(oldumask);
3174 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3186 TAINT_PROPER("rmdir");
3188 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3190 XPUSHi( dooneliner("rmdir", tmps) );
3195 /* Directory calls. */
3200 #if defined(Direntry_t) && defined(HAS_READDIR)
3202 char *dirname = POPpx;
3204 register IO *io = GvIOn(gv);
3210 PerlDir_close(IoDIRP(io));
3211 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3217 SETERRNO(EBADF,RMS$_DIR);
3220 DIE(PL_no_dir_func, "opendir");
3227 #if defined(Direntry_t) && defined(HAS_READDIR)
3229 Direntry_t *readdir _((DIR *));
3231 register Direntry_t *dp;
3233 register IO *io = GvIOn(gv);
3236 if (!io || !IoDIRP(io))
3239 if (GIMME == G_ARRAY) {
3241 while (dp = (Direntry_t *)PerlDir_read(IoDIRP(io))) {
3243 sv = newSVpv(dp->d_name, dp->d_namlen);
3245 sv = newSVpv(dp->d_name, 0);
3247 #ifndef INCOMPLETE_TAINTS
3250 XPUSHs(sv_2mortal(sv));
3254 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3257 sv = newSVpv(dp->d_name, dp->d_namlen);
3259 sv = newSVpv(dp->d_name, 0);
3261 #ifndef INCOMPLETE_TAINTS
3264 XPUSHs(sv_2mortal(sv));
3270 SETERRNO(EBADF,RMS$_ISI);
3271 if (GIMME == G_ARRAY)
3276 DIE(PL_no_dir_func, "readdir");
3283 #if defined(HAS_TELLDIR) || defined(telldir)
3284 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3285 /* XXX netbsd still seemed to.
3286 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3287 --JHI 1999-Feb-02 */
3288 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3289 long telldir _((DIR *));
3292 register IO *io = GvIOn(gv);
3294 if (!io || !IoDIRP(io))
3297 PUSHi( PerlDir_tell(IoDIRP(io)) );
3301 SETERRNO(EBADF,RMS$_ISI);
3304 DIE(PL_no_dir_func, "telldir");
3311 #if defined(HAS_SEEKDIR) || defined(seekdir)
3314 register IO *io = GvIOn(gv);
3316 if (!io || !IoDIRP(io))
3319 (void)PerlDir_seek(IoDIRP(io), along);
3324 SETERRNO(EBADF,RMS$_ISI);
3327 DIE(PL_no_dir_func, "seekdir");
3334 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3336 register IO *io = GvIOn(gv);
3338 if (!io || !IoDIRP(io))
3341 (void)PerlDir_rewind(IoDIRP(io));
3345 SETERRNO(EBADF,RMS$_ISI);
3348 DIE(PL_no_dir_func, "rewinddir");
3355 #if defined(Direntry_t) && defined(HAS_READDIR)
3357 register IO *io = GvIOn(gv);
3359 if (!io || !IoDIRP(io))
3362 #ifdef VOID_CLOSEDIR
3363 PerlDir_close(IoDIRP(io));
3365 if (PerlDir_close(IoDIRP(io)) < 0) {
3366 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3375 SETERRNO(EBADF,RMS$_IFI);
3378 DIE(PL_no_dir_func, "closedir");
3382 /* Process control. */
3397 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
3398 sv_setiv(GvSV(tmpgv), (IV)getpid());
3399 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3404 DIE(PL_no_func, "Unsupported function fork");
3410 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3415 childpid = wait4pid(-1, &argflags, 0);
3416 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3420 DIE(PL_no_func, "Unsupported function wait");
3426 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3434 childpid = wait4pid(childpid, &argflags, optype);
3435 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3439 DIE(PL_no_func, "Unsupported function waitpid");
3445 djSP; dMARK; dORIGMARK; dTARGET;
3450 Sigsave_t ihand,qhand; /* place to save signals during system() */
3453 if (SP - MARK == 1) {
3455 char *junk = SvPV(TOPs, n_a);
3457 TAINT_PROPER("system");
3460 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
3461 while ((childpid = vfork()) == -1) {
3462 if (errno != EAGAIN) {
3471 rsignal_save(SIGINT, SIG_IGN, &ihand);
3472 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
3474 result = wait4pid(childpid, &status, 0);
3475 } while (result == -1 && errno == EINTR);
3476 (void)rsignal_restore(SIGINT, &ihand);
3477 (void)rsignal_restore(SIGQUIT, &qhand);
3478 STATUS_NATIVE_SET(result == -1 ? -1 : status);
3479 do_execfree(); /* free any memory child malloced on vfork */
3481 PUSHi(STATUS_CURRENT);
3484 if (PL_op->op_flags & OPf_STACKED) {
3485 SV *really = *++MARK;
3486 value = (I32)do_aexec(really, MARK, SP);
3488 else if (SP - MARK != 1)
3489 value = (I32)do_aexec(Nullsv, MARK, SP);
3491 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3494 #else /* ! FORK or VMS or OS/2 */
3495 if (PL_op->op_flags & OPf_STACKED) {
3496 SV *really = *++MARK;
3497 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
3499 else if (SP - MARK != 1)
3500 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
3502 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3504 STATUS_NATIVE_SET(value);
3507 PUSHi(STATUS_CURRENT);
3508 #endif /* !FORK or VMS */
3514 djSP; dMARK; dORIGMARK; dTARGET;
3518 if (PL_op->op_flags & OPf_STACKED) {
3519 SV *really = *++MARK;
3520 value = (I32)do_aexec(really, MARK, SP);
3522 else if (SP - MARK != 1)
3524 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3528 (void ) do_aspawn(Nullsv, MARK, SP);
3532 value = (I32)do_aexec(Nullsv, MARK, SP);
3537 char *junk = SvPV(*SP, n_a);
3539 TAINT_PROPER("exec");
3542 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3545 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3548 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3559 djSP; dMARK; dTARGET;
3562 value = (I32)apply(PL_op->op_type, MARK, SP);
3567 DIE(PL_no_func, "Unsupported function kill");
3575 XPUSHi( getppid() );
3578 DIE(PL_no_func, "getppid");
3594 value = (I32)BSD_GETPGRP(pid);
3596 if (pid != 0 && pid != getpid())
3597 DIE("POSIX getpgrp can't take an argument");
3598 value = (I32)getpgrp();
3603 DIE(PL_no_func, "getpgrp()");
3622 TAINT_PROPER("setpgrp");
3624 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3626 if ((pgrp != 0 && pgrp != getpid()) || (pid != 0 && pid != getpid()))
3627 DIE("POSIX setpgrp can't take an argument");
3628 SETi( setpgrp() >= 0 );
3629 #endif /* USE_BSDPGRP */
3632 DIE(PL_no_func, "setpgrp()");
3641 #ifdef HAS_GETPRIORITY
3644 SETi( getpriority(which, who) );
3647 DIE(PL_no_func, "getpriority()");
3657 #ifdef HAS_SETPRIORITY
3661 TAINT_PROPER("setpriority");
3662 SETi( setpriority(which, who, niceval) >= 0 );
3665 DIE(PL_no_func, "setpriority()");
3675 XPUSHn( time(Null(Time_t*)) );
3677 XPUSHi( time(Null(Time_t*)) );
3682 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3683 to HZ. Probably. For now, assume that if the system
3684 defines HZ, it does so correctly. (Will this break
3686 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3687 it's supported. --AD 9/96.
3703 DIE("times not implemented");
3708 (void)PerlProc_times(&PL_timesbuf);
3710 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
3711 /* struct tms, though same data */
3715 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_utime)/HZ)));
3716 if (GIMME == G_ARRAY) {
3717 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_stime)/HZ)));
3718 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cutime)/HZ)));
3719 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cstime)/HZ)));
3722 #endif /* HAS_TIMES */
3727 return pp_gmtime(ARGS);
3735 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3736 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3737 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3743 when = (Time_t)SvNVx(POPs);
3745 when = (Time_t)SvIVx(POPs);
3748 if (PL_op->op_type == OP_LOCALTIME)
3749 tmbuf = localtime(&when);
3751 tmbuf = gmtime(&when);
3755 if (GIMME != G_ARRAY) {
3760 tsv = newSVpvf("%s %s %2d %02d:%02d:%02d %d",
3761 dayname[tmbuf->tm_wday],
3762 monname[tmbuf->tm_mon],
3767 tmbuf->tm_year + 1900);
3768 PUSHs(sv_2mortal(tsv));
3771 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3772 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3773 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3774 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3775 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3776 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3777 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3778 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3779 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3790 anum = alarm((unsigned int)anum);
3797 DIE(PL_no_func, "Unsupported function alarm");
3808 (void)time(&lasttime);
3813 PerlProc_sleep((unsigned int)duration);
3816 XPUSHi(when - lasttime);
3820 /* Shared memory. */
3824 return pp_semget(ARGS);
3829 return pp_semctl(ARGS);
3834 return pp_shmwrite(ARGS);
3839 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3840 djSP; dMARK; dTARGET;
3841 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
3846 return pp_semget(ARGS);
3850 /* Message passing. */
3854 return pp_semget(ARGS);
3859 return pp_semctl(ARGS);
3864 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3865 djSP; dMARK; dTARGET;
3866 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3871 return pp_semget(ARGS);
3877 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3878 djSP; dMARK; dTARGET;
3879 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3884 return pp_semget(ARGS);
3892 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3893 djSP; dMARK; dTARGET;
3894 int anum = do_ipcget(PL_op->op_type, MARK, SP);
3901 DIE("System V IPC is not implemented on this machine");
3907 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3908 djSP; dMARK; dTARGET;
3909 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
3917 PUSHp(zero_but_true, ZBTLEN);
3921 return pp_semget(ARGS);
3927 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3928 djSP; dMARK; dTARGET;
3929 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3934 return pp_semget(ARGS);
3938 /* Get system info. */
3942 #ifdef HAS_GETHOSTBYNAME
3943 return pp_ghostent(ARGS);
3945 DIE(PL_no_sock_func, "gethostbyname");
3951 #ifdef HAS_GETHOSTBYADDR
3952 return pp_ghostent(ARGS);
3954 DIE(PL_no_sock_func, "gethostbyaddr");
3961 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
3962 I32 which = PL_op->op_type;
3963 register char **elem;
3965 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
3966 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
3967 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
3968 struct hostent *PerlSock_gethostent(void);
3970 struct hostent *hent;
3975 if (which == OP_GHBYNAME)
3976 #ifdef HAS_GETHOSTBYNAME
3977 hent = PerlSock_gethostbyname(POPpx);
3979 DIE(PL_no_sock_func, "gethostbyname");
3981 else if (which == OP_GHBYADDR) {
3982 #ifdef HAS_GETHOSTBYADDR
3983 int addrtype = POPi;
3986 Netdb_host_t addr = (Netdb_host_t) SvPV(addrsv, addrlen);
3988 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
3990 DIE(PL_no_sock_func, "gethostbyaddr");
3994 #ifdef HAS_GETHOSTENT
3995 hent = PerlSock_gethostent();
3997 DIE(PL_no_sock_func, "gethostent");
4000 #ifdef HOST_NOT_FOUND
4002 STATUS_NATIVE_SET(h_errno);
4005 if (GIMME != G_ARRAY) {
4006 PUSHs(sv = sv_newmortal());
4008 if (which == OP_GHBYNAME) {
4010 sv_setpvn(sv, hent->h_addr, hent->h_length);
4013 sv_setpv(sv, (char*)hent->h_name);
4019 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4020 sv_setpv(sv, (char*)hent->h_name);
4021 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4022 for (elem = hent->h_aliases; elem && *elem; elem++) {
4023 sv_catpv(sv, *elem);
4025 sv_catpvn(sv, " ", 1);
4027 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4028 sv_setiv(sv, (IV)hent->h_addrtype);
4029 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4030 len = hent->h_length;
4031 sv_setiv(sv, (IV)len);
4033 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4034 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4035 sv_setpvn(sv, *elem, len);
4038 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4040 sv_setpvn(sv, hent->h_addr, len);
4045 DIE(PL_no_sock_func, "gethostent");
4051 #ifdef HAS_GETNETBYNAME
4052 return pp_gnetent(ARGS);
4054 DIE(PL_no_sock_func, "getnetbyname");
4060 #ifdef HAS_GETNETBYADDR
4061 return pp_gnetent(ARGS);
4063 DIE(PL_no_sock_func, "getnetbyaddr");
4070 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4071 I32 which = PL_op->op_type;
4072 register char **elem;
4074 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4075 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4076 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4077 struct netent *PerlSock_getnetent(void);
4079 struct netent *nent;
4082 if (which == OP_GNBYNAME)
4083 #ifdef HAS_GETNETBYNAME
4084 nent = PerlSock_getnetbyname(POPpx);
4086 DIE(PL_no_sock_func, "getnetbyname");
4088 else if (which == OP_GNBYADDR) {
4089 #ifdef HAS_GETNETBYADDR
4090 int addrtype = POPi;
4091 Netdb_net_t addr = (Netdb_net_t) U_L(POPn);
4092 nent = PerlSock_getnetbyaddr(addr, addrtype);
4094 DIE(PL_no_sock_func, "getnetbyaddr");
4098 #ifdef HAS_GETNETENT
4099 nent = PerlSock_getnetent();
4101 DIE(PL_no_sock_func, "getnetent");
4105 if (GIMME != G_ARRAY) {
4106 PUSHs(sv = sv_newmortal());
4108 if (which == OP_GNBYNAME)
4109 sv_setiv(sv, (IV)nent->n_net);
4111 sv_setpv(sv, nent->n_name);
4117 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4118 sv_setpv(sv, nent->n_name);
4119 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4120 for (elem = nent->n_aliases; elem && *elem; elem++) {
4121 sv_catpv(sv, *elem);
4123 sv_catpvn(sv, " ", 1);
4125 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4126 sv_setiv(sv, (IV)nent->n_addrtype);
4127 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4128 sv_setiv(sv, (IV)nent->n_net);
4133 DIE(PL_no_sock_func, "getnetent");
4139 #ifdef HAS_GETPROTOBYNAME
4140 return pp_gprotoent(ARGS);
4142 DIE(PL_no_sock_func, "getprotobyname");
4148 #ifdef HAS_GETPROTOBYNUMBER
4149 return pp_gprotoent(ARGS);
4151 DIE(PL_no_sock_func, "getprotobynumber");
4158 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4159 I32 which = PL_op->op_type;
4160 register char **elem;
4162 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4163 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4164 struct protoent *PerlSock_getprotobynumber(int);
4165 struct protoent *PerlSock_getprotoent(void);
4167 struct protoent *pent;
4170 if (which == OP_GPBYNAME)
4171 #ifdef HAS_GETPROTOBYNAME
4172 pent = PerlSock_getprotobyname(POPpx);
4174 DIE(PL_no_sock_func, "getprotobyname");
4176 else if (which == OP_GPBYNUMBER)
4177 #ifdef HAS_GETPROTOBYNUMBER
4178 pent = PerlSock_getprotobynumber(POPi);
4180 DIE(PL_no_sock_func, "getprotobynumber");
4183 #ifdef HAS_GETPROTOENT
4184 pent = PerlSock_getprotoent();
4186 DIE(PL_no_sock_func, "getprotoent");
4190 if (GIMME != G_ARRAY) {
4191 PUSHs(sv = sv_newmortal());
4193 if (which == OP_GPBYNAME)
4194 sv_setiv(sv, (IV)pent->p_proto);
4196 sv_setpv(sv, pent->p_name);
4202 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4203 sv_setpv(sv, pent->p_name);
4204 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4205 for (elem = pent->p_aliases; elem && *elem; elem++) {
4206 sv_catpv(sv, *elem);
4208 sv_catpvn(sv, " ", 1);
4210 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4211 sv_setiv(sv, (IV)pent->p_proto);
4216 DIE(PL_no_sock_func, "getprotoent");
4222 #ifdef HAS_GETSERVBYNAME
4223 return pp_gservent(ARGS);
4225 DIE(PL_no_sock_func, "getservbyname");
4231 #ifdef HAS_GETSERVBYPORT
4232 return pp_gservent(ARGS);
4234 DIE(PL_no_sock_func, "getservbyport");
4241 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4242 I32 which = PL_op->op_type;
4243 register char **elem;
4245 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4246 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4247 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4248 struct servent *PerlSock_getservent(void);
4250 struct servent *sent;
4253 if (which == OP_GSBYNAME) {
4254 #ifdef HAS_GETSERVBYNAME
4255 char *proto = POPpx;
4258 if (proto && !*proto)
4261 sent = PerlSock_getservbyname(name, proto);
4263 DIE(PL_no_sock_func, "getservbyname");
4266 else if (which == OP_GSBYPORT) {
4267 #ifdef HAS_GETSERVBYPORT
4268 char *proto = POPpx;
4269 unsigned short port = POPu;
4272 port = PerlSock_htons(port);
4274 sent = PerlSock_getservbyport(port, proto);
4276 DIE(PL_no_sock_func, "getservbyport");
4280 #ifdef HAS_GETSERVENT
4281 sent = PerlSock_getservent();
4283 DIE(PL_no_sock_func, "getservent");
4287 if (GIMME != G_ARRAY) {
4288 PUSHs(sv = sv_newmortal());
4290 if (which == OP_GSBYNAME) {
4292 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4294 sv_setiv(sv, (IV)(sent->s_port));
4298 sv_setpv(sv, sent->s_name);
4304 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4305 sv_setpv(sv, sent->s_name);
4306 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4307 for (elem = sent->s_aliases; elem && *elem; elem++) {
4308 sv_catpv(sv, *elem);
4310 sv_catpvn(sv, " ", 1);
4312 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4314 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4316 sv_setiv(sv, (IV)(sent->s_port));
4318 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4319 sv_setpv(sv, sent->s_proto);
4324 DIE(PL_no_sock_func, "getservent");
4331 #ifdef HAS_SETHOSTENT
4332 PerlSock_sethostent(TOPi);
4335 DIE(PL_no_sock_func, "sethostent");
4342 #ifdef HAS_SETNETENT
4343 PerlSock_setnetent(TOPi);
4346 DIE(PL_no_sock_func, "setnetent");
4353 #ifdef HAS_SETPROTOENT
4354 PerlSock_setprotoent(TOPi);
4357 DIE(PL_no_sock_func, "setprotoent");
4364 #ifdef HAS_SETSERVENT
4365 PerlSock_setservent(TOPi);
4368 DIE(PL_no_sock_func, "setservent");
4375 #ifdef HAS_ENDHOSTENT
4376 PerlSock_endhostent();
4380 DIE(PL_no_sock_func, "endhostent");
4387 #ifdef HAS_ENDNETENT
4388 PerlSock_endnetent();
4392 DIE(PL_no_sock_func, "endnetent");
4399 #ifdef HAS_ENDPROTOENT
4400 PerlSock_endprotoent();
4404 DIE(PL_no_sock_func, "endprotoent");
4411 #ifdef HAS_ENDSERVENT
4412 PerlSock_endservent();
4416 DIE(PL_no_sock_func, "endservent");
4423 return pp_gpwent(ARGS);
4425 DIE(PL_no_func, "getpwnam");
4432 return pp_gpwent(ARGS);
4434 DIE(PL_no_func, "getpwuid");
4441 #if defined(HAS_PASSWD) && defined(HAS_GETPWENT)
4442 I32 which = PL_op->op_type;
4444 struct passwd *pwent;
4447 if (which == OP_GPWNAM)
4448 pwent = getpwnam(POPpx);
4449 else if (which == OP_GPWUID)
4450 pwent = getpwuid(POPi);
4452 pwent = (struct passwd *)getpwent();
4455 if (GIMME != G_ARRAY) {
4456 PUSHs(sv = sv_newmortal());
4458 if (which == OP_GPWNAM)
4459 sv_setiv(sv, (IV)pwent->pw_uid);
4461 sv_setpv(sv, pwent->pw_name);
4467 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4468 sv_setpv(sv, pwent->pw_name);
4470 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4472 sv_setpv(sv, pwent->pw_passwd);
4475 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4476 sv_setiv(sv, (IV)pwent->pw_uid);
4478 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4479 sv_setiv(sv, (IV)pwent->pw_gid);
4481 /* pw_change, pw_quota, and pw_age are mutually exclusive. */
4482 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4484 sv_setiv(sv, (IV)pwent->pw_change);
4487 sv_setiv(sv, (IV)pwent->pw_quota);
4490 sv_setpv(sv, pwent->pw_age);
4495 /* pw_class and pw_comment are mutually exclusive. */
4496 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4498 sv_setpv(sv, pwent->pw_class);
4501 sv_setpv(sv, pwent->pw_comment);
4505 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4507 sv_setpv(sv, pwent->pw_gecos);
4509 #ifndef INCOMPLETE_TAINTS
4510 /* pw_gecos is tainted because user himself can diddle with it. */
4514 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4515 sv_setpv(sv, pwent->pw_dir);
4517 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4518 sv_setpv(sv, pwent->pw_shell);
4521 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4522 sv_setiv(sv, (IV)pwent->pw_expire);
4527 DIE(PL_no_func, "getpwent");
4534 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT) && !defined(CYGWIN32)
4538 DIE(PL_no_func, "setpwent");
4545 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
4549 DIE(PL_no_func, "endpwent");
4556 return pp_ggrent(ARGS);
4558 DIE(PL_no_func, "getgrnam");
4565 return pp_ggrent(ARGS);
4567 DIE(PL_no_func, "getgrgid");
4574 #if defined(HAS_GROUP) && defined(HAS_GETGRENT)
4575 I32 which = PL_op->op_type;
4576 register char **elem;
4578 struct group *grent;
4581 if (which == OP_GGRNAM)
4582 grent = (struct group *)getgrnam(POPpx);
4583 else if (which == OP_GGRGID)
4584 grent = (struct group *)getgrgid(POPi);
4586 grent = (struct group *)getgrent();
4589 if (GIMME != G_ARRAY) {
4590 PUSHs(sv = sv_newmortal());
4592 if (which == OP_GGRNAM)
4593 sv_setiv(sv, (IV)grent->gr_gid);
4595 sv_setpv(sv, grent->gr_name);
4601 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4602 sv_setpv(sv, grent->gr_name);
4604 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4606 sv_setpv(sv, grent->gr_passwd);
4609 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4610 sv_setiv(sv, (IV)grent->gr_gid);
4612 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4613 for (elem = grent->gr_mem; elem && *elem; elem++) {
4614 sv_catpv(sv, *elem);
4616 sv_catpvn(sv, " ", 1);
4622 DIE(PL_no_func, "getgrent");
4629 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
4633 DIE(PL_no_func, "setgrent");
4640 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
4644 DIE(PL_no_func, "endgrent");
4654 if (!(tmps = PerlProc_getlogin()))
4656 PUSHp(tmps, strlen(tmps));
4659 DIE(PL_no_func, "getlogin");
4663 /* Miscellaneous. */
4668 djSP; dMARK; dORIGMARK; dTARGET;
4669 register I32 items = SP - MARK;
4670 unsigned long a[20];
4677 while (++MARK <= SP) {
4678 if (SvTAINTED(*MARK)) {
4684 TAINT_PROPER("syscall");
4687 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4688 * or where sizeof(long) != sizeof(char*). But such machines will
4689 * not likely have syscall implemented either, so who cares?
4691 while (++MARK <= SP) {
4692 if (SvNIOK(*MARK) || !i)
4693 a[i++] = SvIV(*MARK);
4694 else if (*MARK == &PL_sv_undef)
4697 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
4703 DIE("Too many args to syscall");
4705 DIE("Too few args to syscall");
4707 retval = syscall(a[0]);
4710 retval = syscall(a[0],a[1]);
4713 retval = syscall(a[0],a[1],a[2]);
4716 retval = syscall(a[0],a[1],a[2],a[3]);
4719 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4722 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4725 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4728 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4732 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4735 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4738 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4742 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4746 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4750 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4751 a[10],a[11],a[12],a[13]);
4753 #endif /* atarist */
4759 DIE(PL_no_func, "syscall");
4763 #ifdef FCNTL_EMULATE_FLOCK
4765 /* XXX Emulate flock() with fcntl().
4766 What's really needed is a good file locking module.
4770 fcntl_emulate_flock(int fd, int operation)
4774 switch (operation & ~LOCK_NB) {
4776 flock.l_type = F_RDLCK;
4779 flock.l_type = F_WRLCK;
4782 flock.l_type = F_UNLCK;
4788 flock.l_whence = SEEK_SET;
4789 flock.l_start = flock.l_len = 0L;
4791 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4794 #endif /* FCNTL_EMULATE_FLOCK */
4796 #ifdef LOCKF_EMULATE_FLOCK
4798 /* XXX Emulate flock() with lockf(). This is just to increase
4799 portability of scripts. The calls are not completely
4800 interchangeable. What's really needed is a good file
4804 /* The lockf() constants might have been defined in <unistd.h>.
4805 Unfortunately, <unistd.h> causes troubles on some mixed
4806 (BSD/POSIX) systems, such as SunOS 4.1.3.
4808 Further, the lockf() constants aren't POSIX, so they might not be
4809 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4810 just stick in the SVID values and be done with it. Sigh.
4814 # define F_ULOCK 0 /* Unlock a previously locked region */
4817 # define F_LOCK 1 /* Lock a region for exclusive use */
4820 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4823 # define F_TEST 3 /* Test a region for other processes locks */
4827 lockf_emulate_flock (fd, operation)
4835 /* flock locks entire file so for lockf we need to do the same */
4837 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
4838 if (pos > 0) /* is seekable and needs to be repositioned */
4839 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
4840 pos = -1; /* seek failed, so don't seek back afterwards */
4843 switch (operation) {
4845 /* LOCK_SH - get a shared lock */
4847 /* LOCK_EX - get an exclusive lock */
4849 i = lockf (fd, F_LOCK, 0);
4852 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4853 case LOCK_SH|LOCK_NB:
4854 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4855 case LOCK_EX|LOCK_NB:
4856 i = lockf (fd, F_TLOCK, 0);
4858 if ((errno == EAGAIN) || (errno == EACCES))
4859 errno = EWOULDBLOCK;
4862 /* LOCK_UN - unlock (non-blocking is a no-op) */
4864 case LOCK_UN|LOCK_NB:
4865 i = lockf (fd, F_ULOCK, 0);
4868 /* Default - can't decipher operation */
4875 if (pos > 0) /* need to restore position of the handle */
4876 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
4881 #endif /* LOCKF_EMULATE_FLOCK */