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 gv_IOadd(newdefout);
1008 setdefout(newdefout);
1027 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1028 I32 gimme = GIMME_V;
1030 XPUSHs(SvTIED_obj((SV*)gv, mg));
1033 perl_call_method("GETC", gimme);
1036 if (gimme == G_SCALAR)
1037 SvSetMagicSV_nosteal(TARG, TOPs);
1040 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1043 sv_setpv(TARG, " ");
1044 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1051 return pp_sysread(ARGS);
1055 doform(CV *cv, GV *gv, OP *retop)
1058 register PERL_CONTEXT *cx;
1059 I32 gimme = GIMME_V;
1060 AV* padlist = CvPADLIST(cv);
1061 SV** svp = AvARRAY(padlist);
1067 PUSHBLOCK(cx, CXt_SUB, PL_stack_sp);
1069 SAVESPTR(PL_curpad);
1070 PL_curpad = AvARRAY((AV*)svp[1]);
1072 setdefout(gv); /* locally select filehandle so $% et al work */
1104 SV *tmpsv = sv_newmortal();
1105 gv_efullname3(tmpsv, fgv, Nullch);
1106 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
1108 DIE("Not a format reference");
1111 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1113 IoFLAGS(io) &= ~IOf_DIDTOP;
1114 return doform(cv,gv,PL_op->op_next);
1120 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1121 register IO *io = GvIOp(gv);
1122 PerlIO *ofp = IoOFP(io);
1126 register PERL_CONTEXT *cx;
1128 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1129 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1130 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1131 PL_formtarget != PL_toptarget)
1135 if (!IoTOP_GV(io)) {
1139 if (!IoTOP_NAME(io)) {
1140 if (!IoFMT_NAME(io))
1141 IoFMT_NAME(io) = savepv(GvNAME(gv));
1142 topname = sv_2mortal(newSVpvf("%s_TOP", IoFMT_NAME(io)));
1143 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1144 if ((topgv && GvFORM(topgv)) ||
1145 !gv_fetchpv("top",FALSE,SVt_PVFM))
1146 IoTOP_NAME(io) = savepv(SvPVX(topname));
1148 IoTOP_NAME(io) = savepv("top");
1150 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1151 if (!topgv || !GvFORM(topgv)) {
1152 IoLINES_LEFT(io) = 100000000;
1155 IoTOP_GV(io) = topgv;
1157 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1158 I32 lines = IoLINES_LEFT(io);
1159 char *s = SvPVX(PL_formtarget);
1160 if (lines <= 0) /* Yow, header didn't even fit!!! */
1162 while (lines-- > 0) {
1163 s = strchr(s, '\n');
1169 PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
1170 sv_chop(PL_formtarget, s);
1171 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1174 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1175 PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
1176 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1178 PL_formtarget = PL_toptarget;
1179 IoFLAGS(io) |= IOf_DIDTOP;
1182 DIE("bad top format reference");
1185 SV *tmpsv = sv_newmortal();
1186 gv_efullname3(tmpsv, fgv, Nullch);
1187 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
1190 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1191 return doform(cv,gv,PL_op);
1195 POPBLOCK(cx,PL_curpm);
1201 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1203 warner(WARN_IO, "Filehandle only opened for input");
1204 else if (ckWARN(WARN_CLOSED))
1205 warner(WARN_CLOSED, "Write on closed filehandle");
1210 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1211 if (ckWARN(WARN_IO))
1212 warner(WARN_IO, "page overflow");
1214 if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
1218 FmLINES(PL_formtarget) = 0;
1219 SvCUR_set(PL_formtarget, 0);
1220 *SvEND(PL_formtarget) = '\0';
1221 if (IoFLAGS(io) & IOf_FLUSH)
1222 (void)PerlIO_flush(fp);
1226 PL_formtarget = PL_bodytarget;
1228 return pop_return();
1233 djSP; dMARK; dORIGMARK;
1241 if (PL_op->op_flags & OPf_STACKED)
1246 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1247 if (MARK == ORIGMARK) {
1250 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1254 *MARK = SvTIED_obj((SV*)gv, mg);
1257 perl_call_method("PRINTF", G_SCALAR);
1260 MARK = ORIGMARK + 1;
1267 if (!(io = GvIO(gv))) {
1268 if (ckWARN(WARN_UNOPENED)) {
1269 gv_fullname3(sv, gv, Nullch);
1270 warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,n_a));
1272 SETERRNO(EBADF,RMS$_IFI);
1275 else if (!(fp = IoOFP(io))) {
1276 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1277 gv_fullname3(sv, gv, Nullch);
1279 warner(WARN_IO, "Filehandle %s opened only for input",
1281 else if (ckWARN(WARN_CLOSED))
1282 warner(WARN_CLOSED, "printf on closed filehandle %s",
1285 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1289 #ifdef USE_LOCALE_NUMERIC
1290 if (PL_op->op_private & OPpLOCALE)
1291 SET_NUMERIC_LOCAL();
1293 SET_NUMERIC_STANDARD();
1295 do_sprintf(sv, SP - MARK, MARK + 1);
1296 if (!do_print(sv, fp))
1299 if (IoFLAGS(io) & IOf_FLUSH)
1300 if (PerlIO_flush(fp) == EOF)
1311 PUSHs(&PL_sv_undef);
1332 tmps = SvPV(sv, len);
1333 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1334 IoLINES(GvIOp(gv)) = 0;
1338 PUSHs(&PL_sv_undef);
1345 djSP; dMARK; dORIGMARK; dTARGET;
1351 Sock_size_t bufsize;
1357 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1358 (mg = SvTIED_mg((SV*)gv, 'q')))
1363 *MARK = SvTIED_obj((SV*)gv, mg);
1365 perl_call_method("READ", G_SCALAR);
1378 sv_setpvn(bufsv, "", 0);
1379 buffer = SvPV_force(bufsv, blen);
1380 length = SvIVx(*++MARK);
1382 DIE("Negative length");
1385 offset = SvIVx(*++MARK);
1389 if (!io || !IoIFP(io))
1392 if (PL_op->op_type == OP_RECV) {
1393 char namebuf[MAXPATHLEN];
1394 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1395 bufsize = sizeof (struct sockaddr_in);
1397 bufsize = sizeof namebuf;
1399 buffer = SvGROW(bufsv, length+1);
1400 /* 'offset' means 'flags' here */
1401 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1402 (struct sockaddr *)namebuf, &bufsize);
1405 SvCUR_set(bufsv, length);
1406 *SvEND(bufsv) = '\0';
1407 (void)SvPOK_only(bufsv);
1409 /* This should not be marked tainted if the fp is marked clean */
1410 if (!(IoFLAGS(io) & IOf_UNTAINT))
1411 SvTAINTED_on(bufsv);
1413 sv_setpvn(TARG, namebuf, bufsize);
1418 if (PL_op->op_type == OP_RECV)
1419 DIE(PL_no_sock_func, "recv");
1423 DIE("Offset outside string");
1426 bufsize = SvCUR(bufsv);
1427 buffer = SvGROW(bufsv, length+offset+1);
1428 if (offset > bufsize) { /* Zero any newly allocated space */
1429 Zero(buffer+bufsize, offset-bufsize, char);
1431 if (PL_op->op_type == OP_SYSREAD) {
1432 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1433 if (IoTYPE(io) == 's') {
1434 length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1435 buffer+offset, length, 0);
1440 length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1441 buffer+offset, length);
1445 #ifdef HAS_SOCKET__bad_code_maybe
1446 if (IoTYPE(io) == 's') {
1447 char namebuf[MAXPATHLEN];
1448 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1449 bufsize = sizeof (struct sockaddr_in);
1451 bufsize = sizeof namebuf;
1453 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1454 (struct sockaddr *)namebuf, &bufsize);
1459 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1460 /* fread() returns 0 on both error and EOF */
1461 if (length == 0 && PerlIO_error(IoIFP(io)))
1466 SvCUR_set(bufsv, length+offset);
1467 *SvEND(bufsv) = '\0';
1468 (void)SvPOK_only(bufsv);
1470 /* This should not be marked tainted if the fp is marked clean */
1471 if (!(IoFLAGS(io) & IOf_UNTAINT))
1472 SvTAINTED_on(bufsv);
1485 int items = (SP - PL_stack_base) - TOPMARK;
1489 sv = sv_2mortal(newSViv(sv_len(*SP)));
1493 return pp_send(ARGS);
1498 djSP; dMARK; dORIGMARK; dTARGET;
1509 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1513 *MARK = SvTIED_obj((SV*)gv, mg);
1515 perl_call_method("WRITE", G_SCALAR);
1526 buffer = SvPV(bufsv, blen);
1527 length = SvIVx(*++MARK);
1529 DIE("Negative length");
1532 if (!io || !IoIFP(io)) {
1534 if (ckWARN(WARN_CLOSED)) {
1535 if (PL_op->op_type == OP_SYSWRITE)
1536 warner(WARN_CLOSED, "Syswrite on closed filehandle");
1538 warner(WARN_CLOSED, "Send on closed socket");
1541 else if (PL_op->op_type == OP_SYSWRITE) {
1543 offset = SvIVx(*++MARK);
1546 DIE("Offset outside string");
1548 } else if (offset >= blen && blen > 0)
1549 DIE("Offset outside string");
1552 if (length > blen - offset)
1553 length = blen - offset;
1554 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1555 if (IoTYPE(io) == 's') {
1556 length = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1557 buffer+offset, length, 0);
1562 length = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1563 buffer+offset, length);
1567 else if (SP > MARK) {
1570 sockbuf = SvPVx(*++MARK, mlen);
1571 length = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1572 (struct sockaddr *)sockbuf, mlen);
1575 length = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1579 DIE(PL_no_sock_func, "send");
1594 return pp_sysread(ARGS);
1605 gv = PL_last_in_gv = (GV*)POPs;
1606 PUSHs(boolSV(!gv || do_eof(gv)));
1618 gv = PL_last_in_gv = (GV*)POPs;
1619 PUSHi( do_tell(gv) );
1625 return pp_sysseek(ARGS);
1633 Off_t offset = POPl;
1635 gv = PL_last_in_gv = (GV*)POPs;
1636 if (PL_op->op_type == OP_SEEK)
1637 PUSHs(boolSV(do_seek(gv, offset, whence)));
1639 Off_t n = do_sysseek(gv, offset, whence);
1640 PUSHs((n < 0) ? &PL_sv_undef
1641 : sv_2mortal(n ? newSViv((IV)n)
1642 : newSVpv(zero_but_true, ZBTLEN)));
1650 Off_t len = (Off_t)POPn;
1656 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1657 if (PL_op->op_flags & OPf_SPECIAL) {
1658 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
1660 TAINT_PROPER("truncate");
1661 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1663 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1665 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1674 if (SvTYPE(sv) == SVt_PVGV) {
1675 tmpgv = (GV*)sv; /* *main::FRED for example */
1678 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1679 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1683 name = SvPV(sv, n_a);
1684 TAINT_PROPER("truncate");
1686 if (truncate(name, len) < 0)
1691 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
1694 if (my_chsize(tmpfd, len) < 0)
1696 PerlLIO_close(tmpfd);
1705 SETERRNO(EBADF,RMS$_IFI);
1708 DIE("truncate not implemented");
1714 return pp_ioctl(ARGS);
1721 unsigned int func = U_I(POPn);
1722 int optype = PL_op->op_type;
1728 if (!io || !argsv || !IoIFP(io)) {
1729 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1733 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1736 s = SvPV_force(argsv, len);
1737 need = IOCPARM_LEN(func);
1739 s = Sv_Grow(argsv, need + 1);
1740 SvCUR_set(argsv, need);
1743 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1746 retval = SvIV(argsv);
1747 s = (char*)retval; /* ouch */
1750 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1752 if (optype == OP_IOCTL)
1754 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1756 DIE("ioctl is not implemented");
1760 #if defined(OS2) && defined(__EMX__)
1761 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1763 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1766 DIE("fcntl is not implemented");
1770 if (s[SvCUR(argsv)] != 17)
1771 DIE("Possible memory corruption: %s overflowed 3rd argument",
1772 PL_op_name[optype]);
1773 s[SvCUR(argsv)] = 0; /* put our null back */
1774 SvSETMAGIC(argsv); /* Assume it has changed */
1783 PUSHp(zero_but_true, ZBTLEN);
1803 fp = IoIFP(GvIOp(gv));
1807 (void)PerlIO_flush(fp);
1808 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
1815 DIE(PL_no_func, "flock()");
1827 int protocol = POPi;
1835 SETERRNO(EBADF,LIB$_INVARG);
1841 do_close(gv, FALSE);
1843 TAINT_PROPER("socket");
1844 fd = PerlSock_socket(domain, type, protocol);
1847 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1848 IoOFP(io) = PerlIO_fdopen(fd, "w");
1850 if (!IoIFP(io) || !IoOFP(io)) {
1851 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1852 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1853 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
1859 DIE(PL_no_sock_func, "socket");
1866 #ifdef HAS_SOCKETPAIR
1871 int protocol = POPi;
1884 do_close(gv1, FALSE);
1886 do_close(gv2, FALSE);
1888 TAINT_PROPER("socketpair");
1889 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
1891 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1892 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1894 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1895 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1897 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1898 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1899 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1900 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
1901 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1902 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1903 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
1909 DIE(PL_no_sock_func, "socketpair");
1917 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
1918 extern GETPRIVMODE();
1919 extern GETUSERMODE();
1924 register IO *io = GvIOn(gv);
1928 int mpeprivmode = 0;
1931 if (!io || !IoIFP(io))
1934 addr = SvPV(addrsv, len);
1935 TAINT_PROPER("bind");
1936 #ifdef MPE /* Deal with MPE bind() peculiarities */
1937 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
1938 /* The address *MUST* stupidly be zero. */
1939 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
1940 /* PRIV mode is required to bind() to ports < 1024. */
1941 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
1942 ((struct sockaddr_in *)addr)->sin_port > 0) {
1943 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
1948 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
1949 (struct sockaddr *)addr, len) >= 0)
1952 #ifdef MPE /* Switch back to USER mode */
1963 if (ckWARN(WARN_CLOSED))
1964 warner(WARN_CLOSED, "bind() on closed fd");
1965 SETERRNO(EBADF,SS$_IVCHAN);
1968 DIE(PL_no_sock_func, "bind");
1979 register IO *io = GvIOn(gv);
1982 if (!io || !IoIFP(io))
1985 addr = SvPV(addrsv, len);
1986 TAINT_PROPER("connect");
1987 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1993 if (ckWARN(WARN_CLOSED))
1994 warner(WARN_CLOSED, "connect() on closed fd");
1995 SETERRNO(EBADF,SS$_IVCHAN);
1998 DIE(PL_no_sock_func, "connect");
2008 register IO *io = GvIOn(gv);
2010 if (!io || !IoIFP(io))
2013 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2019 if (ckWARN(WARN_CLOSED))
2020 warner(WARN_CLOSED, "listen() on closed fd");
2021 SETERRNO(EBADF,SS$_IVCHAN);
2024 DIE(PL_no_sock_func, "listen");
2036 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2037 Sock_size_t len = sizeof saddr;
2049 if (!gstio || !IoIFP(gstio))
2054 do_close(ngv, FALSE);
2056 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2059 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2060 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2061 IoTYPE(nstio) = 's';
2062 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2063 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2064 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2065 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2069 PUSHp((char *)&saddr, len);
2073 if (ckWARN(WARN_CLOSED))
2074 warner(WARN_CLOSED, "accept() on closed fd");
2075 SETERRNO(EBADF,SS$_IVCHAN);
2081 DIE(PL_no_sock_func, "accept");
2091 register IO *io = GvIOn(gv);
2093 if (!io || !IoIFP(io))
2096 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2100 if (ckWARN(WARN_CLOSED))
2101 warner(WARN_CLOSED, "shutdown() on closed fd");
2102 SETERRNO(EBADF,SS$_IVCHAN);
2105 DIE(PL_no_sock_func, "shutdown");
2112 return pp_ssockopt(ARGS);
2114 DIE(PL_no_sock_func, "getsockopt");
2122 int optype = PL_op->op_type;
2125 unsigned int optname;
2131 if (optype == OP_GSOCKOPT)
2132 sv = sv_2mortal(NEWSV(22, 257));
2135 optname = (unsigned int) POPi;
2136 lvl = (unsigned int) POPi;
2140 if (!io || !IoIFP(io))
2143 fd = PerlIO_fileno(IoIFP(io));
2147 (void)SvPOK_only(sv);
2151 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2166 aint = (int)SvIV(sv);
2170 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2179 if (ckWARN(WARN_CLOSED))
2180 warner(WARN_CLOSED, "[gs]etsockopt() on closed fd");
2181 SETERRNO(EBADF,SS$_IVCHAN);
2186 DIE(PL_no_sock_func, "setsockopt");
2193 return pp_getpeername(ARGS);
2195 DIE(PL_no_sock_func, "getsockname");
2203 int optype = PL_op->op_type;
2207 register IO *io = GvIOn(gv);
2210 if (!io || !IoIFP(io))
2213 sv = sv_2mortal(NEWSV(22, 257));
2214 (void)SvPOK_only(sv);
2218 fd = PerlIO_fileno(IoIFP(io));
2220 case OP_GETSOCKNAME:
2221 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2224 case OP_GETPEERNAME:
2225 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2227 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2229 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2230 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2231 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2232 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2233 sizeof(u_short) + sizeof(struct in_addr))) {
2240 #ifdef BOGUS_GETNAME_RETURN
2241 /* Interactive Unix, getpeername() and getsockname()
2242 does not return valid namelen */
2243 if (len == BOGUS_GETNAME_RETURN)
2244 len = sizeof(struct sockaddr);
2252 if (ckWARN(WARN_CLOSED))
2253 warner(WARN_CLOSED, "get{sock, peer}name() on closed fd");
2254 SETERRNO(EBADF,SS$_IVCHAN);
2259 DIE(PL_no_sock_func, "getpeername");
2267 return pp_stat(ARGS);
2278 if (PL_op->op_flags & OPf_REF) {
2279 tmpgv = cGVOP->op_gv;
2281 if (tmpgv != PL_defgv) {
2282 PL_laststype = OP_STAT;
2284 sv_setpv(PL_statname, "");
2285 PL_laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
2286 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &PL_statcache) : -1);
2288 if (PL_laststatval < 0)
2293 if (SvTYPE(sv) == SVt_PVGV) {
2297 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2298 tmpgv = (GV*)SvRV(sv);
2301 sv_setpv(PL_statname, SvPV(sv,n_a));
2304 PL_laststype = PL_op->op_type;
2305 if (PL_op->op_type == OP_LSTAT)
2306 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2309 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2310 if (PL_laststatval < 0) {
2311 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2312 warner(WARN_NEWLINE, PL_warn_nl, "stat");
2318 if (gimme != G_ARRAY) {
2319 if (gimme != G_VOID)
2320 XPUSHs(boolSV(max));
2326 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_dev)));
2327 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ino)));
2328 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mode)));
2329 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_nlink)));
2330 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_uid)));
2331 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_gid)));
2332 #ifdef USE_STAT_RDEV
2333 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_rdev)));
2335 PUSHs(sv_2mortal(newSVpv("", 0)));
2337 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_size)));
2339 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_atime)));
2340 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_mtime)));
2341 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_ctime)));
2343 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_atime)));
2344 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mtime)));
2345 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ctime)));
2347 #ifdef USE_STAT_BLOCKS
2348 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blksize)));
2349 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blocks)));
2351 PUSHs(sv_2mortal(newSVpv("", 0)));
2352 PUSHs(sv_2mortal(newSVpv("", 0)));
2362 #if defined(HAS_ACCESS) && defined(R_OK)
2364 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2365 result = access(TOPpx, R_OK);
2373 result = my_stat(ARGS);
2375 result = my_stat(ARGS);
2380 if (cando(S_IRUSR, 0, &PL_statcache))
2389 #if defined(HAS_ACCESS) && defined(W_OK)
2391 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2392 result = access(TOPpx, W_OK);
2400 result = my_stat(ARGS);
2402 result = my_stat(ARGS);
2407 if (cando(S_IWUSR, 0, &PL_statcache))
2416 #if defined(HAS_ACCESS) && defined(X_OK)
2418 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2419 result = access(TOPpx, X_OK);
2427 result = my_stat(ARGS);
2429 result = my_stat(ARGS);
2434 if (cando(S_IXUSR, 0, &PL_statcache))
2443 #ifdef PERL_EFF_ACCESS_R_OK
2445 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2446 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2454 result = my_stat(ARGS);
2456 result = my_stat(ARGS);
2461 if (cando(S_IRUSR, 1, &PL_statcache))
2470 #ifdef PERL_EFF_ACCESS_W_OK
2472 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2473 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2481 result = my_stat(ARGS);
2483 result = my_stat(ARGS);
2488 if (cando(S_IWUSR, 1, &PL_statcache))
2497 #ifdef PERL_EFF_ACCESS_X_OK
2499 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2500 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2508 result = my_stat(ARGS);
2510 result = my_stat(ARGS);
2515 if (cando(S_IXUSR, 1, &PL_statcache))
2522 I32 result = my_stat(ARGS);
2531 return pp_ftrowned(ARGS);
2536 I32 result = my_stat(ARGS);
2540 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ? PL_euid : PL_uid) )
2547 I32 result = my_stat(ARGS);
2551 if (!PL_statcache.st_size)
2558 I32 result = my_stat(ARGS);
2562 PUSHi(PL_statcache.st_size);
2568 I32 result = my_stat(ARGS);
2572 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_mtime) / 86400.0 );
2578 I32 result = my_stat(ARGS);
2582 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_atime) / 86400.0 );
2588 I32 result = my_stat(ARGS);
2592 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_ctime) / 86400.0 );
2598 I32 result = my_stat(ARGS);
2602 if (S_ISSOCK(PL_statcache.st_mode))
2609 I32 result = my_stat(ARGS);
2613 if (S_ISCHR(PL_statcache.st_mode))
2620 I32 result = my_stat(ARGS);
2624 if (S_ISBLK(PL_statcache.st_mode))
2631 I32 result = my_stat(ARGS);
2635 if (S_ISREG(PL_statcache.st_mode))
2642 I32 result = my_stat(ARGS);
2646 if (S_ISDIR(PL_statcache.st_mode))
2653 I32 result = my_stat(ARGS);
2657 if (S_ISFIFO(PL_statcache.st_mode))
2664 I32 result = my_lstat(ARGS);
2668 if (S_ISLNK(PL_statcache.st_mode))
2677 I32 result = my_stat(ARGS);
2681 if (PL_statcache.st_mode & S_ISUID)
2691 I32 result = my_stat(ARGS);
2695 if (PL_statcache.st_mode & S_ISGID)
2705 I32 result = my_stat(ARGS);
2709 if (PL_statcache.st_mode & S_ISVTX)
2720 char *tmps = Nullch;
2723 if (PL_op->op_flags & OPf_REF)
2725 else if (isGV(TOPs))
2727 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2728 gv = (GV*)SvRV(POPs);
2730 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
2732 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2733 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2734 else if (tmps && isDIGIT(*tmps))
2738 if (PerlLIO_isatty(fd))
2743 #if defined(atarist) /* this will work with atariST. Configure will
2744 make guesses for other systems. */
2745 # define FILE_base(f) ((f)->_base)
2746 # define FILE_ptr(f) ((f)->_ptr)
2747 # define FILE_cnt(f) ((f)->_cnt)
2748 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2758 register STDCHAR *s;
2764 if (PL_op->op_flags & OPf_REF)
2766 else if (isGV(TOPs))
2768 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2769 gv = (GV*)SvRV(POPs);
2775 if (gv == PL_defgv) {
2777 io = GvIO(PL_statgv);
2780 goto really_filename;
2785 PL_laststatval = -1;
2786 sv_setpv(PL_statname, "");
2787 io = GvIO(PL_statgv);
2789 if (io && IoIFP(io)) {
2790 if (! PerlIO_has_base(IoIFP(io)))
2791 DIE("-T and -B not implemented on filehandles");
2792 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2793 if (PL_laststatval < 0)
2795 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
2796 if (PL_op->op_type == OP_FTTEXT)
2800 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2801 i = PerlIO_getc(IoIFP(io));
2803 (void)PerlIO_ungetc(IoIFP(io),i);
2805 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2807 len = PerlIO_get_bufsiz(IoIFP(io));
2808 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2809 /* sfio can have large buffers - limit to 512 */
2814 if (ckWARN(WARN_UNOPENED))
2815 warner(WARN_UNOPENED, "Test on unopened file <%s>",
2816 GvENAME(cGVOP->op_gv));
2817 SETERRNO(EBADF,RMS$_IFI);
2825 PL_laststatval = -1;
2826 sv_setpv(PL_statname, SvPV(sv, n_a));
2828 i = PerlLIO_open3(SvPV(sv, n_a), O_RDONLY, 0);
2830 i = PerlLIO_open(SvPV(sv, n_a), 0);
2833 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
2834 warner(WARN_NEWLINE, PL_warn_nl, "open");
2837 PL_laststatval = PerlLIO_fstat(i, &PL_statcache);
2838 if (PL_laststatval < 0)
2840 len = PerlLIO_read(i, tbuf, 512);
2841 (void)PerlLIO_close(i);
2843 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
2844 RETPUSHNO; /* special case NFS directories */
2845 RETPUSHYES; /* null file is anything */
2850 /* now scan s to look for textiness */
2851 /* XXX ASCII dependent code */
2853 for (i = 0; i < len; i++, s++) {
2854 if (!*s) { /* null never allowed in text */
2859 else if (!(isPRINT(*s) || isSPACE(*s)))
2865 *s != '\n' && *s != '\r' && *s != '\b' &&
2866 *s != '\t' && *s != '\f' && *s != 27)
2871 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2879 return pp_fttext(ARGS);
2895 if (!tmps || !*tmps) {
2896 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
2898 tmps = SvPV(*svp, n_a);
2900 if (!tmps || !*tmps) {
2901 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
2903 tmps = SvPV(*svp, n_a);
2906 if (!tmps || !*tmps) {
2907 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
2909 tmps = SvPV(*svp, n_a);
2912 TAINT_PROPER("chdir");
2913 PUSHi( PerlDir_chdir(tmps) >= 0 );
2915 /* Clear the DEFAULT element of ENV so we'll get the new value
2917 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
2924 djSP; dMARK; dTARGET;
2927 value = (I32)apply(PL_op->op_type, MARK, SP);
2932 DIE(PL_no_func, "Unsupported function chown");
2943 TAINT_PROPER("chroot");
2944 PUSHi( chroot(tmps) >= 0 );
2947 DIE(PL_no_func, "chroot");
2953 djSP; dMARK; dTARGET;
2955 value = (I32)apply(PL_op->op_type, MARK, SP);
2963 djSP; dMARK; dTARGET;
2965 value = (I32)apply(PL_op->op_type, MARK, SP);
2973 djSP; dMARK; dTARGET;
2975 value = (I32)apply(PL_op->op_type, MARK, SP);
2987 char *tmps2 = POPpx;
2988 char *tmps = SvPV(TOPs, n_a);
2989 TAINT_PROPER("rename");
2991 anum = PerlLIO_rename(tmps, tmps2);
2993 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
2994 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
2997 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
2998 (void)UNLINK(tmps2);
2999 if (!(anum = link(tmps, tmps2)))
3000 anum = UNLINK(tmps);
3013 char *tmps2 = POPpx;
3014 char *tmps = SvPV(TOPs, n_a);
3015 TAINT_PROPER("link");
3016 SETi( link(tmps, tmps2) >= 0 );
3018 DIE(PL_no_func, "Unsupported function link");
3028 char *tmps2 = POPpx;
3029 char *tmps = SvPV(TOPs, n_a);
3030 TAINT_PROPER("symlink");
3031 SETi( symlink(tmps, tmps2) >= 0 );
3034 DIE(PL_no_func, "symlink");
3043 char buf[MAXPATHLEN];
3047 #ifndef INCOMPLETE_TAINTS
3051 len = readlink(tmps, buf, sizeof buf);
3059 RETSETUNDEF; /* just pretend it's a normal file */
3063 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3065 dooneliner(cmd, filename)
3069 char *save_filename = filename;
3075 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3076 strcpy(cmdline, cmd);
3077 strcat(cmdline, " ");
3078 for (s = cmdline + strlen(cmdline); *filename; ) {
3083 myfp = PerlProc_popen(cmdline, "r");
3087 SV *tmpsv = sv_newmortal();
3088 /* Need to save/restore 'PL_rs' ?? */
3089 s = sv_gets(tmpsv, myfp, 0);
3090 (void)PerlProc_pclose(myfp);
3094 #ifdef HAS_SYS_ERRLIST
3099 /* you don't see this */
3101 #ifdef HAS_SYS_ERRLIST
3109 if (instr(s, errmsg)) {
3116 #define EACCES EPERM
3118 if (instr(s, "cannot make"))
3119 SETERRNO(EEXIST,RMS$_FEX);
3120 else if (instr(s, "existing file"))
3121 SETERRNO(EEXIST,RMS$_FEX);
3122 else if (instr(s, "ile exists"))
3123 SETERRNO(EEXIST,RMS$_FEX);
3124 else if (instr(s, "non-exist"))
3125 SETERRNO(ENOENT,RMS$_FNF);
3126 else if (instr(s, "does not exist"))
3127 SETERRNO(ENOENT,RMS$_FNF);
3128 else if (instr(s, "not empty"))
3129 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3130 else if (instr(s, "cannot access"))
3131 SETERRNO(EACCES,RMS$_PRV);
3133 SETERRNO(EPERM,RMS$_PRV);
3136 else { /* some mkdirs return no failure indication */
3137 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3138 if (PL_op->op_type == OP_RMDIR)
3143 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3160 char *tmps = SvPV(TOPs, n_a);
3162 TAINT_PROPER("mkdir");
3164 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3166 SETi( dooneliner("mkdir", tmps) );
3167 oldumask = PerlLIO_umask(0);
3168 PerlLIO_umask(oldumask);
3169 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3181 TAINT_PROPER("rmdir");
3183 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3185 XPUSHi( dooneliner("rmdir", tmps) );
3190 /* Directory calls. */
3195 #if defined(Direntry_t) && defined(HAS_READDIR)
3197 char *dirname = POPpx;
3199 register IO *io = GvIOn(gv);
3205 PerlDir_close(IoDIRP(io));
3206 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3212 SETERRNO(EBADF,RMS$_DIR);
3215 DIE(PL_no_dir_func, "opendir");
3222 #if defined(Direntry_t) && defined(HAS_READDIR)
3224 Direntry_t *readdir _((DIR *));
3226 register Direntry_t *dp;
3228 register IO *io = GvIOn(gv);
3231 if (!io || !IoDIRP(io))
3234 if (GIMME == G_ARRAY) {
3236 while (dp = (Direntry_t *)PerlDir_read(IoDIRP(io))) {
3238 sv = newSVpv(dp->d_name, dp->d_namlen);
3240 sv = newSVpv(dp->d_name, 0);
3242 #ifndef INCOMPLETE_TAINTS
3245 XPUSHs(sv_2mortal(sv));
3249 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3252 sv = newSVpv(dp->d_name, dp->d_namlen);
3254 sv = newSVpv(dp->d_name, 0);
3256 #ifndef INCOMPLETE_TAINTS
3259 XPUSHs(sv_2mortal(sv));
3265 SETERRNO(EBADF,RMS$_ISI);
3266 if (GIMME == G_ARRAY)
3271 DIE(PL_no_dir_func, "readdir");
3278 #if defined(HAS_TELLDIR) || defined(telldir)
3279 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3280 /* XXX netbsd still seemed to.
3281 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3282 --JHI 1999-Feb-02 */
3283 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3284 long telldir _((DIR *));
3287 register IO *io = GvIOn(gv);
3289 if (!io || !IoDIRP(io))
3292 PUSHi( PerlDir_tell(IoDIRP(io)) );
3296 SETERRNO(EBADF,RMS$_ISI);
3299 DIE(PL_no_dir_func, "telldir");
3306 #if defined(HAS_SEEKDIR) || defined(seekdir)
3309 register IO *io = GvIOn(gv);
3311 if (!io || !IoDIRP(io))
3314 (void)PerlDir_seek(IoDIRP(io), along);
3319 SETERRNO(EBADF,RMS$_ISI);
3322 DIE(PL_no_dir_func, "seekdir");
3329 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3331 register IO *io = GvIOn(gv);
3333 if (!io || !IoDIRP(io))
3336 (void)PerlDir_rewind(IoDIRP(io));
3340 SETERRNO(EBADF,RMS$_ISI);
3343 DIE(PL_no_dir_func, "rewinddir");
3350 #if defined(Direntry_t) && defined(HAS_READDIR)
3352 register IO *io = GvIOn(gv);
3354 if (!io || !IoDIRP(io))
3357 #ifdef VOID_CLOSEDIR
3358 PerlDir_close(IoDIRP(io));
3360 if (PerlDir_close(IoDIRP(io)) < 0) {
3361 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3370 SETERRNO(EBADF,RMS$_IFI);
3373 DIE(PL_no_dir_func, "closedir");
3377 /* Process control. */
3392 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
3393 sv_setiv(GvSV(tmpgv), (IV)getpid());
3394 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3399 DIE(PL_no_func, "Unsupported function fork");
3405 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3410 childpid = wait4pid(-1, &argflags, 0);
3411 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3415 DIE(PL_no_func, "Unsupported function wait");
3421 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3429 childpid = wait4pid(childpid, &argflags, optype);
3430 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3434 DIE(PL_no_func, "Unsupported function waitpid");
3440 djSP; dMARK; dORIGMARK; dTARGET;
3445 Sigsave_t ihand,qhand; /* place to save signals during system() */
3448 if (SP - MARK == 1) {
3450 char *junk = SvPV(TOPs, n_a);
3452 TAINT_PROPER("system");
3455 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
3456 while ((childpid = vfork()) == -1) {
3457 if (errno != EAGAIN) {
3466 rsignal_save(SIGINT, SIG_IGN, &ihand);
3467 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
3469 result = wait4pid(childpid, &status, 0);
3470 } while (result == -1 && errno == EINTR);
3471 (void)rsignal_restore(SIGINT, &ihand);
3472 (void)rsignal_restore(SIGQUIT, &qhand);
3473 STATUS_NATIVE_SET(result == -1 ? -1 : status);
3474 do_execfree(); /* free any memory child malloced on vfork */
3476 PUSHi(STATUS_CURRENT);
3479 if (PL_op->op_flags & OPf_STACKED) {
3480 SV *really = *++MARK;
3481 value = (I32)do_aexec(really, MARK, SP);
3483 else if (SP - MARK != 1)
3484 value = (I32)do_aexec(Nullsv, MARK, SP);
3486 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3489 #else /* ! FORK or VMS or OS/2 */
3490 if (PL_op->op_flags & OPf_STACKED) {
3491 SV *really = *++MARK;
3492 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
3494 else if (SP - MARK != 1)
3495 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
3497 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3499 STATUS_NATIVE_SET(value);
3502 PUSHi(STATUS_CURRENT);
3503 #endif /* !FORK or VMS */
3509 djSP; dMARK; dORIGMARK; dTARGET;
3513 if (PL_op->op_flags & OPf_STACKED) {
3514 SV *really = *++MARK;
3515 value = (I32)do_aexec(really, MARK, SP);
3517 else if (SP - MARK != 1)
3519 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3523 (void ) do_aspawn(Nullsv, MARK, SP);
3527 value = (I32)do_aexec(Nullsv, MARK, SP);
3532 char *junk = SvPV(*SP, n_a);
3534 TAINT_PROPER("exec");
3537 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3540 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3543 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3554 djSP; dMARK; dTARGET;
3557 value = (I32)apply(PL_op->op_type, MARK, SP);
3562 DIE(PL_no_func, "Unsupported function kill");
3570 XPUSHi( getppid() );
3573 DIE(PL_no_func, "getppid");
3589 value = (I32)BSD_GETPGRP(pid);
3591 if (pid != 0 && pid != getpid())
3592 DIE("POSIX getpgrp can't take an argument");
3593 value = (I32)getpgrp();
3598 DIE(PL_no_func, "getpgrp()");
3617 TAINT_PROPER("setpgrp");
3619 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3621 if ((pgrp != 0 && pgrp != getpid()) || (pid != 0 && pid != getpid()))
3622 DIE("POSIX setpgrp can't take an argument");
3623 SETi( setpgrp() >= 0 );
3624 #endif /* USE_BSDPGRP */
3627 DIE(PL_no_func, "setpgrp()");
3636 #ifdef HAS_GETPRIORITY
3639 SETi( getpriority(which, who) );
3642 DIE(PL_no_func, "getpriority()");
3652 #ifdef HAS_SETPRIORITY
3656 TAINT_PROPER("setpriority");
3657 SETi( setpriority(which, who, niceval) >= 0 );
3660 DIE(PL_no_func, "setpriority()");
3670 XPUSHn( time(Null(Time_t*)) );
3672 XPUSHi( time(Null(Time_t*)) );
3677 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3678 to HZ. Probably. For now, assume that if the system
3679 defines HZ, it does so correctly. (Will this break
3681 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3682 it's supported. --AD 9/96.
3698 DIE("times not implemented");
3703 (void)PerlProc_times(&PL_timesbuf);
3705 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
3706 /* struct tms, though same data */
3710 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_utime)/HZ)));
3711 if (GIMME == G_ARRAY) {
3712 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_stime)/HZ)));
3713 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cutime)/HZ)));
3714 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cstime)/HZ)));
3717 #endif /* HAS_TIMES */
3722 return pp_gmtime(ARGS);
3730 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3731 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3732 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3738 when = (Time_t)SvNVx(POPs);
3740 when = (Time_t)SvIVx(POPs);
3743 if (PL_op->op_type == OP_LOCALTIME)
3744 tmbuf = localtime(&when);
3746 tmbuf = gmtime(&when);
3750 if (GIMME != G_ARRAY) {
3755 tsv = newSVpvf("%s %s %2d %02d:%02d:%02d %d",
3756 dayname[tmbuf->tm_wday],
3757 monname[tmbuf->tm_mon],
3762 tmbuf->tm_year + 1900);
3763 PUSHs(sv_2mortal(tsv));
3766 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3767 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3768 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3769 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3770 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3771 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3772 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3773 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3774 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3785 anum = alarm((unsigned int)anum);
3792 DIE(PL_no_func, "Unsupported function alarm");
3803 (void)time(&lasttime);
3808 PerlProc_sleep((unsigned int)duration);
3811 XPUSHi(when - lasttime);
3815 /* Shared memory. */
3819 return pp_semget(ARGS);
3824 return pp_semctl(ARGS);
3829 return pp_shmwrite(ARGS);
3834 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3835 djSP; dMARK; dTARGET;
3836 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
3841 return pp_semget(ARGS);
3845 /* Message passing. */
3849 return pp_semget(ARGS);
3854 return pp_semctl(ARGS);
3859 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3860 djSP; dMARK; dTARGET;
3861 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3866 return pp_semget(ARGS);
3872 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3873 djSP; dMARK; dTARGET;
3874 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3879 return pp_semget(ARGS);
3887 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3888 djSP; dMARK; dTARGET;
3889 int anum = do_ipcget(PL_op->op_type, MARK, SP);
3896 DIE("System V IPC is not implemented on this machine");
3902 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3903 djSP; dMARK; dTARGET;
3904 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
3912 PUSHp(zero_but_true, ZBTLEN);
3916 return pp_semget(ARGS);
3922 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3923 djSP; dMARK; dTARGET;
3924 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3929 return pp_semget(ARGS);
3933 /* Get system info. */
3937 #ifdef HAS_GETHOSTBYNAME
3938 return pp_ghostent(ARGS);
3940 DIE(PL_no_sock_func, "gethostbyname");
3946 #ifdef HAS_GETHOSTBYADDR
3947 return pp_ghostent(ARGS);
3949 DIE(PL_no_sock_func, "gethostbyaddr");
3956 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
3957 I32 which = PL_op->op_type;
3958 register char **elem;
3960 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
3961 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
3962 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
3963 struct hostent *PerlSock_gethostent(void);
3965 struct hostent *hent;
3970 if (which == OP_GHBYNAME)
3971 #ifdef HAS_GETHOSTBYNAME
3972 hent = PerlSock_gethostbyname(POPpx);
3974 DIE(PL_no_sock_func, "gethostbyname");
3976 else if (which == OP_GHBYADDR) {
3977 #ifdef HAS_GETHOSTBYADDR
3978 int addrtype = POPi;
3981 Netdb_host_t addr = (Netdb_host_t) SvPV(addrsv, addrlen);
3983 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
3985 DIE(PL_no_sock_func, "gethostbyaddr");
3989 #ifdef HAS_GETHOSTENT
3990 hent = PerlSock_gethostent();
3992 DIE(PL_no_sock_func, "gethostent");
3995 #ifdef HOST_NOT_FOUND
3997 STATUS_NATIVE_SET(h_errno);
4000 if (GIMME != G_ARRAY) {
4001 PUSHs(sv = sv_newmortal());
4003 if (which == OP_GHBYNAME) {
4005 sv_setpvn(sv, hent->h_addr, hent->h_length);
4008 sv_setpv(sv, (char*)hent->h_name);
4014 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4015 sv_setpv(sv, (char*)hent->h_name);
4016 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4017 for (elem = hent->h_aliases; elem && *elem; elem++) {
4018 sv_catpv(sv, *elem);
4020 sv_catpvn(sv, " ", 1);
4022 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4023 sv_setiv(sv, (IV)hent->h_addrtype);
4024 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4025 len = hent->h_length;
4026 sv_setiv(sv, (IV)len);
4028 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4029 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4030 sv_setpvn(sv, *elem, len);
4033 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4035 sv_setpvn(sv, hent->h_addr, len);
4040 DIE(PL_no_sock_func, "gethostent");
4046 #ifdef HAS_GETNETBYNAME
4047 return pp_gnetent(ARGS);
4049 DIE(PL_no_sock_func, "getnetbyname");
4055 #ifdef HAS_GETNETBYADDR
4056 return pp_gnetent(ARGS);
4058 DIE(PL_no_sock_func, "getnetbyaddr");
4065 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4066 I32 which = PL_op->op_type;
4067 register char **elem;
4069 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4070 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4071 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4072 struct netent *PerlSock_getnetent(void);
4074 struct netent *nent;
4077 if (which == OP_GNBYNAME)
4078 #ifdef HAS_GETNETBYNAME
4079 nent = PerlSock_getnetbyname(POPpx);
4081 DIE(PL_no_sock_func, "getnetbyname");
4083 else if (which == OP_GNBYADDR) {
4084 #ifdef HAS_GETNETBYADDR
4085 int addrtype = POPi;
4086 Netdb_net_t addr = (Netdb_net_t) U_L(POPn);
4087 nent = PerlSock_getnetbyaddr(addr, addrtype);
4089 DIE(PL_no_sock_func, "getnetbyaddr");
4093 #ifdef HAS_GETNETENT
4094 nent = PerlSock_getnetent();
4096 DIE(PL_no_sock_func, "getnetent");
4100 if (GIMME != G_ARRAY) {
4101 PUSHs(sv = sv_newmortal());
4103 if (which == OP_GNBYNAME)
4104 sv_setiv(sv, (IV)nent->n_net);
4106 sv_setpv(sv, nent->n_name);
4112 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4113 sv_setpv(sv, nent->n_name);
4114 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4115 for (elem = nent->n_aliases; elem && *elem; elem++) {
4116 sv_catpv(sv, *elem);
4118 sv_catpvn(sv, " ", 1);
4120 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4121 sv_setiv(sv, (IV)nent->n_addrtype);
4122 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4123 sv_setiv(sv, (IV)nent->n_net);
4128 DIE(PL_no_sock_func, "getnetent");
4134 #ifdef HAS_GETPROTOBYNAME
4135 return pp_gprotoent(ARGS);
4137 DIE(PL_no_sock_func, "getprotobyname");
4143 #ifdef HAS_GETPROTOBYNUMBER
4144 return pp_gprotoent(ARGS);
4146 DIE(PL_no_sock_func, "getprotobynumber");
4153 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4154 I32 which = PL_op->op_type;
4155 register char **elem;
4157 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4158 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4159 struct protoent *PerlSock_getprotobynumber(int);
4160 struct protoent *PerlSock_getprotoent(void);
4162 struct protoent *pent;
4165 if (which == OP_GPBYNAME)
4166 #ifdef HAS_GETPROTOBYNAME
4167 pent = PerlSock_getprotobyname(POPpx);
4169 DIE(PL_no_sock_func, "getprotobyname");
4171 else if (which == OP_GPBYNUMBER)
4172 #ifdef HAS_GETPROTOBYNUMBER
4173 pent = PerlSock_getprotobynumber(POPi);
4175 DIE(PL_no_sock_func, "getprotobynumber");
4178 #ifdef HAS_GETPROTOENT
4179 pent = PerlSock_getprotoent();
4181 DIE(PL_no_sock_func, "getprotoent");
4185 if (GIMME != G_ARRAY) {
4186 PUSHs(sv = sv_newmortal());
4188 if (which == OP_GPBYNAME)
4189 sv_setiv(sv, (IV)pent->p_proto);
4191 sv_setpv(sv, pent->p_name);
4197 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4198 sv_setpv(sv, pent->p_name);
4199 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4200 for (elem = pent->p_aliases; elem && *elem; elem++) {
4201 sv_catpv(sv, *elem);
4203 sv_catpvn(sv, " ", 1);
4205 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4206 sv_setiv(sv, (IV)pent->p_proto);
4211 DIE(PL_no_sock_func, "getprotoent");
4217 #ifdef HAS_GETSERVBYNAME
4218 return pp_gservent(ARGS);
4220 DIE(PL_no_sock_func, "getservbyname");
4226 #ifdef HAS_GETSERVBYPORT
4227 return pp_gservent(ARGS);
4229 DIE(PL_no_sock_func, "getservbyport");
4236 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4237 I32 which = PL_op->op_type;
4238 register char **elem;
4240 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4241 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4242 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4243 struct servent *PerlSock_getservent(void);
4245 struct servent *sent;
4248 if (which == OP_GSBYNAME) {
4249 #ifdef HAS_GETSERVBYNAME
4250 char *proto = POPpx;
4253 if (proto && !*proto)
4256 sent = PerlSock_getservbyname(name, proto);
4258 DIE(PL_no_sock_func, "getservbyname");
4261 else if (which == OP_GSBYPORT) {
4262 #ifdef HAS_GETSERVBYPORT
4263 char *proto = POPpx;
4264 unsigned short port = POPu;
4267 port = PerlSock_htons(port);
4269 sent = PerlSock_getservbyport(port, proto);
4271 DIE(PL_no_sock_func, "getservbyport");
4275 #ifdef HAS_GETSERVENT
4276 sent = PerlSock_getservent();
4278 DIE(PL_no_sock_func, "getservent");
4282 if (GIMME != G_ARRAY) {
4283 PUSHs(sv = sv_newmortal());
4285 if (which == OP_GSBYNAME) {
4287 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4289 sv_setiv(sv, (IV)(sent->s_port));
4293 sv_setpv(sv, sent->s_name);
4299 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4300 sv_setpv(sv, sent->s_name);
4301 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4302 for (elem = sent->s_aliases; elem && *elem; elem++) {
4303 sv_catpv(sv, *elem);
4305 sv_catpvn(sv, " ", 1);
4307 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4309 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4311 sv_setiv(sv, (IV)(sent->s_port));
4313 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4314 sv_setpv(sv, sent->s_proto);
4319 DIE(PL_no_sock_func, "getservent");
4326 #ifdef HAS_SETHOSTENT
4327 PerlSock_sethostent(TOPi);
4330 DIE(PL_no_sock_func, "sethostent");
4337 #ifdef HAS_SETNETENT
4338 PerlSock_setnetent(TOPi);
4341 DIE(PL_no_sock_func, "setnetent");
4348 #ifdef HAS_SETPROTOENT
4349 PerlSock_setprotoent(TOPi);
4352 DIE(PL_no_sock_func, "setprotoent");
4359 #ifdef HAS_SETSERVENT
4360 PerlSock_setservent(TOPi);
4363 DIE(PL_no_sock_func, "setservent");
4370 #ifdef HAS_ENDHOSTENT
4371 PerlSock_endhostent();
4375 DIE(PL_no_sock_func, "endhostent");
4382 #ifdef HAS_ENDNETENT
4383 PerlSock_endnetent();
4387 DIE(PL_no_sock_func, "endnetent");
4394 #ifdef HAS_ENDPROTOENT
4395 PerlSock_endprotoent();
4399 DIE(PL_no_sock_func, "endprotoent");
4406 #ifdef HAS_ENDSERVENT
4407 PerlSock_endservent();
4411 DIE(PL_no_sock_func, "endservent");
4418 return pp_gpwent(ARGS);
4420 DIE(PL_no_func, "getpwnam");
4427 return pp_gpwent(ARGS);
4429 DIE(PL_no_func, "getpwuid");
4436 #if defined(HAS_PASSWD) && defined(HAS_GETPWENT)
4437 I32 which = PL_op->op_type;
4439 struct passwd *pwent;
4442 if (which == OP_GPWNAM)
4443 pwent = getpwnam(POPpx);
4444 else if (which == OP_GPWUID)
4445 pwent = getpwuid(POPi);
4447 pwent = (struct passwd *)getpwent();
4450 if (GIMME != G_ARRAY) {
4451 PUSHs(sv = sv_newmortal());
4453 if (which == OP_GPWNAM)
4454 sv_setiv(sv, (IV)pwent->pw_uid);
4456 sv_setpv(sv, pwent->pw_name);
4462 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4463 sv_setpv(sv, pwent->pw_name);
4465 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4467 sv_setpv(sv, pwent->pw_passwd);
4470 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4471 sv_setiv(sv, (IV)pwent->pw_uid);
4473 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4474 sv_setiv(sv, (IV)pwent->pw_gid);
4476 /* pw_change, pw_quota, and pw_age are mutually exclusive. */
4477 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4479 sv_setiv(sv, (IV)pwent->pw_change);
4482 sv_setiv(sv, (IV)pwent->pw_quota);
4485 sv_setpv(sv, pwent->pw_age);
4490 /* pw_class and pw_comment are mutually exclusive. */
4491 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4493 sv_setpv(sv, pwent->pw_class);
4496 sv_setpv(sv, pwent->pw_comment);
4500 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4502 sv_setpv(sv, pwent->pw_gecos);
4504 #ifndef INCOMPLETE_TAINTS
4505 /* pw_gecos is tainted because user himself can diddle with it. */
4509 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4510 sv_setpv(sv, pwent->pw_dir);
4512 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4513 sv_setpv(sv, pwent->pw_shell);
4516 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4517 sv_setiv(sv, (IV)pwent->pw_expire);
4522 DIE(PL_no_func, "getpwent");
4529 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT) && !defined(CYGWIN32)
4533 DIE(PL_no_func, "setpwent");
4540 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
4544 DIE(PL_no_func, "endpwent");
4551 return pp_ggrent(ARGS);
4553 DIE(PL_no_func, "getgrnam");
4560 return pp_ggrent(ARGS);
4562 DIE(PL_no_func, "getgrgid");
4569 #if defined(HAS_GROUP) && defined(HAS_GETGRENT)
4570 I32 which = PL_op->op_type;
4571 register char **elem;
4573 struct group *grent;
4576 if (which == OP_GGRNAM)
4577 grent = (struct group *)getgrnam(POPpx);
4578 else if (which == OP_GGRGID)
4579 grent = (struct group *)getgrgid(POPi);
4581 grent = (struct group *)getgrent();
4584 if (GIMME != G_ARRAY) {
4585 PUSHs(sv = sv_newmortal());
4587 if (which == OP_GGRNAM)
4588 sv_setiv(sv, (IV)grent->gr_gid);
4590 sv_setpv(sv, grent->gr_name);
4596 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4597 sv_setpv(sv, grent->gr_name);
4599 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4601 sv_setpv(sv, grent->gr_passwd);
4604 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4605 sv_setiv(sv, (IV)grent->gr_gid);
4607 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4608 for (elem = grent->gr_mem; elem && *elem; elem++) {
4609 sv_catpv(sv, *elem);
4611 sv_catpvn(sv, " ", 1);
4617 DIE(PL_no_func, "getgrent");
4624 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
4628 DIE(PL_no_func, "setgrent");
4635 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
4639 DIE(PL_no_func, "endgrent");
4649 if (!(tmps = PerlProc_getlogin()))
4651 PUSHp(tmps, strlen(tmps));
4654 DIE(PL_no_func, "getlogin");
4658 /* Miscellaneous. */
4663 djSP; dMARK; dORIGMARK; dTARGET;
4664 register I32 items = SP - MARK;
4665 unsigned long a[20];
4672 while (++MARK <= SP) {
4673 if (SvTAINTED(*MARK)) {
4679 TAINT_PROPER("syscall");
4682 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4683 * or where sizeof(long) != sizeof(char*). But such machines will
4684 * not likely have syscall implemented either, so who cares?
4686 while (++MARK <= SP) {
4687 if (SvNIOK(*MARK) || !i)
4688 a[i++] = SvIV(*MARK);
4689 else if (*MARK == &PL_sv_undef)
4692 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
4698 DIE("Too many args to syscall");
4700 DIE("Too few args to syscall");
4702 retval = syscall(a[0]);
4705 retval = syscall(a[0],a[1]);
4708 retval = syscall(a[0],a[1],a[2]);
4711 retval = syscall(a[0],a[1],a[2],a[3]);
4714 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4717 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4720 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4723 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4727 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4730 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4733 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4737 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],
4746 a[10],a[11],a[12],a[13]);
4748 #endif /* atarist */
4754 DIE(PL_no_func, "syscall");
4758 #ifdef FCNTL_EMULATE_FLOCK
4760 /* XXX Emulate flock() with fcntl().
4761 What's really needed is a good file locking module.
4765 fcntl_emulate_flock(int fd, int operation)
4769 switch (operation & ~LOCK_NB) {
4771 flock.l_type = F_RDLCK;
4774 flock.l_type = F_WRLCK;
4777 flock.l_type = F_UNLCK;
4783 flock.l_whence = SEEK_SET;
4784 flock.l_start = flock.l_len = 0L;
4786 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4789 #endif /* FCNTL_EMULATE_FLOCK */
4791 #ifdef LOCKF_EMULATE_FLOCK
4793 /* XXX Emulate flock() with lockf(). This is just to increase
4794 portability of scripts. The calls are not completely
4795 interchangeable. What's really needed is a good file
4799 /* The lockf() constants might have been defined in <unistd.h>.
4800 Unfortunately, <unistd.h> causes troubles on some mixed
4801 (BSD/POSIX) systems, such as SunOS 4.1.3.
4803 Further, the lockf() constants aren't POSIX, so they might not be
4804 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4805 just stick in the SVID values and be done with it. Sigh.
4809 # define F_ULOCK 0 /* Unlock a previously locked region */
4812 # define F_LOCK 1 /* Lock a region for exclusive use */
4815 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4818 # define F_TEST 3 /* Test a region for other processes locks */
4822 lockf_emulate_flock (fd, operation)
4830 /* flock locks entire file so for lockf we need to do the same */
4832 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
4833 if (pos > 0) /* is seekable and needs to be repositioned */
4834 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
4835 pos = -1; /* seek failed, so don't seek back afterwards */
4838 switch (operation) {
4840 /* LOCK_SH - get a shared lock */
4842 /* LOCK_EX - get an exclusive lock */
4844 i = lockf (fd, F_LOCK, 0);
4847 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4848 case LOCK_SH|LOCK_NB:
4849 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4850 case LOCK_EX|LOCK_NB:
4851 i = lockf (fd, F_TLOCK, 0);
4853 if ((errno == EAGAIN) || (errno == EACCES))
4854 errno = EWOULDBLOCK;
4857 /* LOCK_UN - unlock (non-blocking is a no-op) */
4859 case LOCK_UN|LOCK_NB:
4860 i = lockf (fd, F_ULOCK, 0);
4863 /* Default - can't decipher operation */
4870 if (pos > 0) /* need to restore position of the handle */
4871 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
4876 #endif /* LOCKF_EMULATE_FLOCK */