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() */
178 # define MAXPATHLEN PATH_MAX
180 # define MAXPATHLEN 1024
185 static char zero_but_true[ZBTLEN + 1] = "0 but true";
187 #if defined(I_SYS_ACCESS) && !defined(R_OK)
188 # include <sys/access.h>
191 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
192 #undef PERL_EFF_ACCESS_W_OK
193 #undef PERL_EFF_ACCESS_X_OK
195 /* F_OK unused: if stat() cannot find it... */
197 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
198 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
199 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
200 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
201 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
204 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
206 # if defined(I_SYS_SECURITY)
207 # include <sys/security.h>
209 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
210 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
211 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
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");
305 fp = PerlProc_popen(tmps, "r");
307 if (gimme == G_VOID) {
309 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
313 else if (gimme == G_SCALAR) {
314 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
315 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
326 if (sv_gets(sv, fp, 0) == Nullch) {
330 XPUSHs(sv_2mortal(sv));
331 if (SvLEN(sv) - SvCUR(sv) > 20) {
332 SvLEN_set(sv, SvCUR(sv)+1);
333 Renew(SvPVX(sv), SvLEN(sv), char);
338 STATUS_NATIVE_SET(PerlProc_pclose(fp));
339 TAINT; /* "I believe that this is not gratuitous!" */
342 STATUS_NATIVE_SET(-1);
343 if (gimme == G_SCALAR)
353 tryAMAGICunTARGET(iter, -1);
360 * The external globbing program may use things we can't control,
361 * so for security reasons we must assume the worst.
364 taint_proper(PL_no_security, "glob");
368 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
369 PL_last_in_gv = (GV*)*PL_stack_sp--;
371 SAVESPTR(PL_rs); /* This is not permanent, either. */
372 PL_rs = sv_2mortal(newSVpv("", 1));
375 *SvPVX(PL_rs) = '\n';
379 result = do_readline();
384 #if 0 /* XXX never used! */
387 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), PL_na), TRUE,SVt_PVIO);
388 return do_readline();
394 PL_last_in_gv = cGVOP->op_gv;
395 return do_readline();
402 if (SP - MARK != 1) {
404 do_join(TARG, &PL_sv_no, MARK, SP);
405 tmps = SvPV(TARG, PL_na);
409 tmps = SvPV(TOPs, PL_na);
411 if (!tmps || !*tmps) {
413 (void)SvUPGRADE(error, SVt_PV);
414 if (SvPOK(error) && SvCUR(error))
415 sv_catpv(error, "\t...caught");
416 tmps = SvPV(error, PL_na);
419 tmps = "Warning: something's wrong";
430 if (SP - MARK != 1) {
432 do_join(TARG, &PL_sv_no, MARK, SP);
433 tmps = SvPV(TARG, PL_na);
438 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, PL_na);
440 if (!tmps || !*tmps) {
442 (void)SvUPGRADE(error, SVt_PV);
443 if(tmpsv ? SvROK(tmpsv) : SvROK(error)) {
445 SvSetSV(error,tmpsv);
446 else if(sv_isobject(error)) {
447 HV *stash = SvSTASH(SvRV(error));
448 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
450 SV *file = sv_2mortal(newSVsv(GvSV(PL_curcop->cop_filegv)));
451 SV *line = sv_2mortal(newSViv(PL_curcop->cop_line));
458 perl_call_sv((SV*)GvCV(gv),
459 G_SCALAR|G_EVAL|G_KEEPERR);
460 sv_setsv(error,*PL_stack_sp--);
466 if (SvPOK(error) && SvCUR(error))
467 sv_catpv(error, "\t...propagated");
468 tmps = SvPV(error, PL_na);
489 DIE(PL_no_usym, "filehandle");
494 DIE(PL_no_usym, "filehandle");
496 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
497 tmps = SvPV(sv, len);
498 if (do_open(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp))
499 PUSHi( (I32)PL_forkprocess );
500 else if (PL_forkprocess == 0) /* we are a new child */
518 if (mg = SvTIED_mg((SV*)gv, 'q')) {
520 XPUSHs(SvTIED_obj((SV*)gv, mg));
523 perl_call_method("CLOSE", G_SCALAR);
529 PUSHs(boolSV(do_close(gv, TRUE)));
549 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
550 DIE(PL_no_usym, "filehandle");
555 do_close(rgv, FALSE);
557 do_close(wgv, FALSE);
559 if (PerlProc_pipe(fd) < 0)
562 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
563 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
564 IoIFP(wstio) = IoOFP(wstio);
568 if (!IoIFP(rstio) || !IoOFP(wstio)) {
569 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
570 else PerlLIO_close(fd[0]);
571 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
572 else PerlLIO_close(fd[1]);
575 #if defined(HAS_FCNTL) && defined(F_SETFD)
576 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
577 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
584 DIE(PL_no_func, "pipe");
597 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
599 PUSHi(PerlIO_fileno(fp));
610 anum = PerlLIO_umask(0);
611 (void)PerlLIO_umask(anum);
614 anum = PerlLIO_umask(POPi);
615 TAINT_PROPER("umask");
618 /* Only DIE if trying to restrict permissions on `user' (self).
619 * Otherwise it's harmless and more useful to just return undef
620 * since 'group' and 'other' concepts probably don't exist here. */
621 if (MAXARG >= 1 && (POPi & 0700))
622 DIE("umask not implemented");
623 XPUSHs(&PL_sv_undef);
641 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
644 if (do_binmode(fp,IoTYPE(io),TRUE))
659 I32 markoff = MARK - PL_stack_base;
665 switch(SvTYPE(varsv)) {
667 methname = "TIEHASH";
670 methname = "TIEARRAY";
673 methname = "TIEHANDLE";
677 methname = "TIESCALAR";
682 if (sv_isobject(*MARK)) {
684 PUSHSTACKi(PERLSI_MAGIC);
690 perl_call_method(methname, G_SCALAR);
693 /* Not clear why we don't call perl_call_method here too.
694 * perhaps to get different error message ?
696 stash = gv_stashsv(*MARK, FALSE);
697 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
698 DIE("Can't locate object method \"%s\" via package \"%s\"",
699 methname, SvPV(*MARK,PL_na));
702 PUSHSTACKi(PERLSI_MAGIC);
708 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
714 if (sv_isobject(sv)) {
715 sv_unmagic(varsv, how);
716 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
719 SP = PL_stack_base + markoff;
728 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
730 if (ckWARN(WARN_UNTIE)) {
732 if (mg = SvTIED_mg(sv, how)) {
733 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
735 "untie attempted while %lu inner references still exist",
736 (unsigned long)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
748 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
751 if (mg = SvTIED_mg(sv, how)) {
752 SV *osv = SvTIED_obj(sv, mg);
753 if (osv == mg->mg_obj)
754 osv = sv_mortalcopy(osv);
772 sv = sv_mortalcopy(&PL_sv_no);
773 sv_setpv(sv, "AnyDBM_File");
774 stash = gv_stashsv(sv, FALSE);
775 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
777 perl_require_pv("AnyDBM_File.pm");
779 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
780 DIE("No dbm on this machine");
790 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
792 PUSHs(sv_2mortal(newSViv(O_RDWR)));
795 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
798 if (!sv_isobject(TOPs)) {
803 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
806 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
810 if (sv_isobject(TOPs)) {
811 sv_unmagic((SV *) hv, 'P');
812 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
820 return pp_untie(ARGS);
834 struct timeval timebuf;
835 struct timeval *tbuf = &timebuf;
838 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
843 # if BYTEORDER & 0xf0000
844 # define ORDERBYTE (0x88888888 - BYTEORDER)
846 # define ORDERBYTE (0x4444 - BYTEORDER)
852 for (i = 1; i <= 3; i++) {
860 /* little endians can use vecs directly */
861 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
862 # if SELECT_MIN_BITS > 1
863 /* If SELECT_MIN_BITS is greater than one we most probably will want
864 * to align the sizes with SELECT_MIN_BITS/8 because for example
865 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
866 * UNIX, Solaris, NeXT) the smallest quantum select() operates on
867 * (sets bit) is 32 bits. */
868 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
870 growsize = sizeof(fd_set);
879 masksize = NFDBITS / NBBY;
881 masksize = sizeof(long); /* documented int, everyone seems to use long */
883 growsize = maxlen + (masksize - (maxlen % masksize));
884 Zero(&fd_sets[0], 4, char*);
892 timebuf.tv_sec = (long)value;
893 value -= (double)timebuf.tv_sec;
894 timebuf.tv_usec = (long)(value * 1000000.0);
897 tbuf = Null(struct timeval*);
899 for (i = 1; i <= 3; i++) {
906 SvPV_force(sv,PL_na); /* force string conversion */
909 Sv_Grow(sv, growsize);
913 while (++j <= growsize) {
917 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
919 New(403, fd_sets[i], growsize, char);
920 for (offset = 0; offset < growsize; offset += masksize) {
921 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
922 fd_sets[i][j+offset] = s[(k % masksize) + offset];
925 fd_sets[i] = SvPVX(sv);
929 nfound = PerlSock_select(
931 (Select_fd_set_t) fd_sets[1],
932 (Select_fd_set_t) fd_sets[2],
933 (Select_fd_set_t) fd_sets[3],
935 for (i = 1; i <= 3; i++) {
938 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
940 for (offset = 0; offset < growsize; offset += masksize) {
941 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
942 s[(k % masksize) + offset] = fd_sets[i][j+offset];
944 Safefree(fd_sets[i]);
951 if (GIMME == G_ARRAY && tbuf) {
952 value = (double)(timebuf.tv_sec) +
953 (double)(timebuf.tv_usec) / 1000000.0;
954 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
959 DIE("select not implemented");
968 (void)SvREFCNT_inc(gv);
970 SvREFCNT_dec(PL_defoutgv);
980 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
982 egv = GvEGV(PL_defoutgv);
987 XPUSHs(&PL_sv_undef);
989 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
990 if (gvp && *gvp == egv) {
991 gv_efullname3(TARG, PL_defoutgv, Nullch);
995 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1000 if (!GvIO(newdefout))
1001 gv_IOadd(newdefout);
1002 setdefout(newdefout);
1021 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1022 I32 gimme = GIMME_V;
1024 XPUSHs(SvTIED_obj((SV*)gv, mg));
1027 perl_call_method("GETC", gimme);
1030 if (gimme == G_SCALAR)
1031 SvSetMagicSV_nosteal(TARG, TOPs);
1034 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1037 sv_setpv(TARG, " ");
1038 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1045 return pp_sysread(ARGS);
1049 doform(CV *cv, GV *gv, OP *retop)
1052 register PERL_CONTEXT *cx;
1053 I32 gimme = GIMME_V;
1054 AV* padlist = CvPADLIST(cv);
1055 SV** svp = AvARRAY(padlist);
1061 PUSHBLOCK(cx, CXt_SUB, PL_stack_sp);
1063 SAVESPTR(PL_curpad);
1064 PL_curpad = AvARRAY((AV*)svp[1]);
1066 setdefout(gv); /* locally select filehandle so $% et al work */
1098 SV *tmpsv = sv_newmortal();
1099 gv_efullname3(tmpsv, fgv, Nullch);
1100 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
1102 DIE("Not a format reference");
1105 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1107 IoFLAGS(io) &= ~IOf_DIDTOP;
1108 return doform(cv,gv,PL_op->op_next);
1114 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1115 register IO *io = GvIOp(gv);
1116 PerlIO *ofp = IoOFP(io);
1120 register PERL_CONTEXT *cx;
1122 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1123 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1124 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1125 PL_formtarget != PL_toptarget)
1129 if (!IoTOP_GV(io)) {
1133 if (!IoTOP_NAME(io)) {
1134 if (!IoFMT_NAME(io))
1135 IoFMT_NAME(io) = savepv(GvNAME(gv));
1136 topname = sv_2mortal(newSVpvf("%s_TOP", IoFMT_NAME(io)));
1137 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1138 if ((topgv && GvFORM(topgv)) ||
1139 !gv_fetchpv("top",FALSE,SVt_PVFM))
1140 IoTOP_NAME(io) = savepv(SvPVX(topname));
1142 IoTOP_NAME(io) = savepv("top");
1144 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1145 if (!topgv || !GvFORM(topgv)) {
1146 IoLINES_LEFT(io) = 100000000;
1149 IoTOP_GV(io) = topgv;
1151 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1152 I32 lines = IoLINES_LEFT(io);
1153 char *s = SvPVX(PL_formtarget);
1154 if (lines <= 0) /* Yow, header didn't even fit!!! */
1156 while (lines-- > 0) {
1157 s = strchr(s, '\n');
1163 PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
1164 sv_chop(PL_formtarget, s);
1165 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1168 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1169 PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
1170 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1172 PL_formtarget = PL_toptarget;
1173 IoFLAGS(io) |= IOf_DIDTOP;
1176 DIE("bad top format reference");
1179 SV *tmpsv = sv_newmortal();
1180 gv_efullname3(tmpsv, fgv, Nullch);
1181 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
1184 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1185 return doform(cv,gv,PL_op);
1189 POPBLOCK(cx,PL_curpm);
1195 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1197 warner(WARN_IO, "Filehandle only opened for input");
1198 else if (ckWARN(WARN_CLOSED))
1199 warner(WARN_CLOSED, "Write on closed filehandle");
1204 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1205 if (ckWARN(WARN_IO))
1206 warner(WARN_IO, "page overflow");
1208 if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
1212 FmLINES(PL_formtarget) = 0;
1213 SvCUR_set(PL_formtarget, 0);
1214 *SvEND(PL_formtarget) = '\0';
1215 if (IoFLAGS(io) & IOf_FLUSH)
1216 (void)PerlIO_flush(fp);
1220 PL_formtarget = PL_bodytarget;
1222 return pop_return();
1227 djSP; dMARK; dORIGMARK;
1234 if (PL_op->op_flags & OPf_STACKED)
1239 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1240 if (MARK == ORIGMARK) {
1243 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1247 *MARK = SvTIED_obj((SV*)gv, mg);
1250 perl_call_method("PRINTF", G_SCALAR);
1253 MARK = ORIGMARK + 1;
1260 if (!(io = GvIO(gv))) {
1261 if (ckWARN(WARN_UNOPENED)) {
1262 gv_fullname3(sv, gv, Nullch);
1263 warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,PL_na));
1265 SETERRNO(EBADF,RMS$_IFI);
1268 else if (!(fp = IoOFP(io))) {
1269 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1270 gv_fullname3(sv, gv, Nullch);
1272 warner(WARN_IO, "Filehandle %s opened only for input",
1274 else if (ckWARN(WARN_CLOSED))
1275 warner(WARN_CLOSED, "printf on closed filehandle %s",
1278 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1282 #ifdef USE_LOCALE_NUMERIC
1283 if (PL_op->op_private & OPpLOCALE)
1284 SET_NUMERIC_LOCAL();
1286 SET_NUMERIC_STANDARD();
1288 do_sprintf(sv, SP - MARK, MARK + 1);
1289 if (!do_print(sv, fp))
1292 if (IoFLAGS(io) & IOf_FLUSH)
1293 if (PerlIO_flush(fp) == EOF)
1304 PUSHs(&PL_sv_undef);
1325 tmps = SvPV(sv, len);
1326 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1327 IoLINES(GvIOp(gv)) = 0;
1331 PUSHs(&PL_sv_undef);
1338 djSP; dMARK; dORIGMARK; dTARGET;
1344 Sock_size_t bufsize;
1350 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1351 (mg = SvTIED_mg((SV*)gv, 'q')))
1356 *MARK = SvTIED_obj((SV*)gv, mg);
1358 perl_call_method("READ", G_SCALAR);
1371 sv_setpvn(bufsv, "", 0);
1372 buffer = SvPV_force(bufsv, blen);
1373 length = SvIVx(*++MARK);
1375 DIE("Negative length");
1378 offset = SvIVx(*++MARK);
1382 if (!io || !IoIFP(io))
1385 if (PL_op->op_type == OP_RECV) {
1386 char namebuf[MAXPATHLEN];
1387 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1388 bufsize = sizeof (struct sockaddr_in);
1390 bufsize = sizeof namebuf;
1392 buffer = SvGROW(bufsv, length+1);
1393 /* 'offset' means 'flags' here */
1394 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1395 (struct sockaddr *)namebuf, &bufsize);
1398 SvCUR_set(bufsv, length);
1399 *SvEND(bufsv) = '\0';
1400 (void)SvPOK_only(bufsv);
1402 /* This should not be marked tainted if the fp is marked clean */
1403 if (!(IoFLAGS(io) & IOf_UNTAINT))
1404 SvTAINTED_on(bufsv);
1406 sv_setpvn(TARG, namebuf, bufsize);
1411 if (PL_op->op_type == OP_RECV)
1412 DIE(PL_no_sock_func, "recv");
1416 DIE("Offset outside string");
1419 bufsize = SvCUR(bufsv);
1420 buffer = SvGROW(bufsv, length+offset+1);
1421 if (offset > bufsize) { /* Zero any newly allocated space */
1422 Zero(buffer+bufsize, offset-bufsize, char);
1424 if (PL_op->op_type == OP_SYSREAD) {
1425 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1426 if (IoTYPE(io) == 's') {
1427 length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1428 buffer+offset, length, 0);
1433 length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1434 buffer+offset, length);
1438 #ifdef HAS_SOCKET__bad_code_maybe
1439 if (IoTYPE(io) == 's') {
1440 char namebuf[MAXPATHLEN];
1441 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1442 bufsize = sizeof (struct sockaddr_in);
1444 bufsize = sizeof namebuf;
1446 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1447 (struct sockaddr *)namebuf, &bufsize);
1452 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1453 /* fread() returns 0 on both error and EOF */
1454 if (length == 0 && PerlIO_error(IoIFP(io)))
1459 SvCUR_set(bufsv, length+offset);
1460 *SvEND(bufsv) = '\0';
1461 (void)SvPOK_only(bufsv);
1463 /* This should not be marked tainted if the fp is marked clean */
1464 if (!(IoFLAGS(io) & IOf_UNTAINT))
1465 SvTAINTED_on(bufsv);
1478 int items = (SP - PL_stack_base) - TOPMARK;
1482 sv = sv_2mortal(newSViv(sv_len(*SP)));
1486 return pp_send(ARGS);
1491 djSP; dMARK; dORIGMARK; dTARGET;
1502 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1506 *MARK = SvTIED_obj((SV*)gv, mg);
1508 perl_call_method("WRITE", G_SCALAR);
1519 buffer = SvPV(bufsv, blen);
1520 length = SvIVx(*++MARK);
1522 DIE("Negative length");
1525 if (!io || !IoIFP(io)) {
1527 if (ckWARN(WARN_CLOSED)) {
1528 if (PL_op->op_type == OP_SYSWRITE)
1529 warner(WARN_CLOSED, "Syswrite on closed filehandle");
1531 warner(WARN_CLOSED, "Send on closed socket");
1534 else if (PL_op->op_type == OP_SYSWRITE) {
1536 offset = SvIVx(*++MARK);
1539 DIE("Offset outside string");
1541 } else if (offset >= blen && blen > 0)
1542 DIE("Offset outside string");
1545 if (length > blen - offset)
1546 length = blen - offset;
1547 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1548 if (IoTYPE(io) == 's') {
1549 length = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1550 buffer+offset, length, 0);
1555 length = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1556 buffer+offset, length);
1560 else if (SP > MARK) {
1563 sockbuf = SvPVx(*++MARK, mlen);
1564 length = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1565 (struct sockaddr *)sockbuf, mlen);
1568 length = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1572 DIE(PL_no_sock_func, "send");
1587 return pp_sysread(ARGS);
1598 gv = PL_last_in_gv = (GV*)POPs;
1599 PUSHs(boolSV(!gv || do_eof(gv)));
1611 gv = PL_last_in_gv = (GV*)POPs;
1612 PUSHi( do_tell(gv) );
1618 return pp_sysseek(ARGS);
1626 Off_t offset = POPl;
1628 gv = PL_last_in_gv = (GV*)POPs;
1629 if (PL_op->op_type == OP_SEEK)
1630 PUSHs(boolSV(do_seek(gv, offset, whence)));
1632 Off_t n = do_sysseek(gv, offset, whence);
1633 PUSHs((n < 0) ? &PL_sv_undef
1634 : sv_2mortal(n ? newSViv((IV)n)
1635 : newSVpv(zero_but_true, ZBTLEN)));
1643 Off_t len = (Off_t)POPn;
1648 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1649 if (PL_op->op_flags & OPf_SPECIAL) {
1650 tmpgv = gv_fetchpv(POPp, FALSE, SVt_PVIO);
1652 TAINT_PROPER("truncate");
1653 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1655 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1657 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1665 if (SvTYPE(sv) == SVt_PVGV) {
1666 tmpgv = (GV*)sv; /* *main::FRED for example */
1669 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1670 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1674 name = SvPV(sv, PL_na);
1675 TAINT_PROPER("truncate");
1677 if (truncate(name, len) < 0)
1682 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
1685 if (my_chsize(tmpfd, len) < 0)
1687 PerlLIO_close(tmpfd);
1696 SETERRNO(EBADF,RMS$_IFI);
1699 DIE("truncate not implemented");
1705 return pp_ioctl(ARGS);
1712 unsigned int func = U_I(POPn);
1713 int optype = PL_op->op_type;
1719 if (!io || !argsv || !IoIFP(io)) {
1720 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1724 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1727 s = SvPV_force(argsv, len);
1728 need = IOCPARM_LEN(func);
1730 s = Sv_Grow(argsv, need + 1);
1731 SvCUR_set(argsv, need);
1734 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1737 retval = SvIV(argsv);
1738 s = (char*)retval; /* ouch */
1741 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1743 if (optype == OP_IOCTL)
1745 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1747 DIE("ioctl is not implemented");
1751 #if defined(OS2) && defined(__EMX__)
1752 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1754 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1757 DIE("fcntl is not implemented");
1761 if (s[SvCUR(argsv)] != 17)
1762 DIE("Possible memory corruption: %s overflowed 3rd argument",
1763 PL_op_name[optype]);
1764 s[SvCUR(argsv)] = 0; /* put our null back */
1765 SvSETMAGIC(argsv); /* Assume it has changed */
1774 PUSHp(zero_but_true, ZBTLEN);
1794 fp = IoIFP(GvIOp(gv));
1798 (void)PerlIO_flush(fp);
1799 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
1806 DIE(PL_no_func, "flock()");
1818 int protocol = POPi;
1826 SETERRNO(EBADF,LIB$_INVARG);
1832 do_close(gv, FALSE);
1834 TAINT_PROPER("socket");
1835 fd = PerlSock_socket(domain, type, protocol);
1838 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1839 IoOFP(io) = PerlIO_fdopen(fd, "w");
1841 if (!IoIFP(io) || !IoOFP(io)) {
1842 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1843 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1844 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
1850 DIE(PL_no_sock_func, "socket");
1857 #ifdef HAS_SOCKETPAIR
1862 int protocol = POPi;
1875 do_close(gv1, FALSE);
1877 do_close(gv2, FALSE);
1879 TAINT_PROPER("socketpair");
1880 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
1882 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1883 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1885 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1886 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1888 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1889 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1890 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1891 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
1892 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1893 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1894 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
1900 DIE(PL_no_sock_func, "socketpair");
1908 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
1909 extern GETPRIVMODE();
1910 extern GETUSERMODE();
1915 register IO *io = GvIOn(gv);
1919 int mpeprivmode = 0;
1922 if (!io || !IoIFP(io))
1925 addr = SvPV(addrsv, len);
1926 TAINT_PROPER("bind");
1927 #ifdef MPE /* Deal with MPE bind() peculiarities */
1928 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
1929 /* The address *MUST* stupidly be zero. */
1930 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
1931 /* PRIV mode is required to bind() to ports < 1024. */
1932 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
1933 ((struct sockaddr_in *)addr)->sin_port > 0) {
1934 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
1939 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
1940 (struct sockaddr *)addr, len) >= 0)
1943 #ifdef MPE /* Switch back to USER mode */
1954 if (ckWARN(WARN_CLOSED))
1955 warner(WARN_CLOSED, "bind() on closed fd");
1956 SETERRNO(EBADF,SS$_IVCHAN);
1959 DIE(PL_no_sock_func, "bind");
1970 register IO *io = GvIOn(gv);
1973 if (!io || !IoIFP(io))
1976 addr = SvPV(addrsv, len);
1977 TAINT_PROPER("connect");
1978 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1984 if (ckWARN(WARN_CLOSED))
1985 warner(WARN_CLOSED, "connect() on closed fd");
1986 SETERRNO(EBADF,SS$_IVCHAN);
1989 DIE(PL_no_sock_func, "connect");
1999 register IO *io = GvIOn(gv);
2001 if (!io || !IoIFP(io))
2004 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2010 if (ckWARN(WARN_CLOSED))
2011 warner(WARN_CLOSED, "listen() on closed fd");
2012 SETERRNO(EBADF,SS$_IVCHAN);
2015 DIE(PL_no_sock_func, "listen");
2027 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2028 Sock_size_t len = sizeof saddr;
2040 if (!gstio || !IoIFP(gstio))
2045 do_close(ngv, FALSE);
2047 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2050 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2051 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2052 IoTYPE(nstio) = 's';
2053 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2054 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2055 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2056 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2060 PUSHp((char *)&saddr, len);
2064 if (ckWARN(WARN_CLOSED))
2065 warner(WARN_CLOSED, "accept() on closed fd");
2066 SETERRNO(EBADF,SS$_IVCHAN);
2072 DIE(PL_no_sock_func, "accept");
2082 register IO *io = GvIOn(gv);
2084 if (!io || !IoIFP(io))
2087 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2091 if (ckWARN(WARN_CLOSED))
2092 warner(WARN_CLOSED, "shutdown() on closed fd");
2093 SETERRNO(EBADF,SS$_IVCHAN);
2096 DIE(PL_no_sock_func, "shutdown");
2103 return pp_ssockopt(ARGS);
2105 DIE(PL_no_sock_func, "getsockopt");
2113 int optype = PL_op->op_type;
2116 unsigned int optname;
2122 if (optype == OP_GSOCKOPT)
2123 sv = sv_2mortal(NEWSV(22, 257));
2126 optname = (unsigned int) POPi;
2127 lvl = (unsigned int) POPi;
2131 if (!io || !IoIFP(io))
2134 fd = PerlIO_fileno(IoIFP(io));
2138 (void)SvPOK_only(sv);
2142 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2152 buf = SvPV(sv, PL_na);
2156 aint = (int)SvIV(sv);
2160 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2169 if (ckWARN(WARN_CLOSED))
2170 warner(WARN_CLOSED, "[gs]etsockopt() on closed fd");
2171 SETERRNO(EBADF,SS$_IVCHAN);
2176 DIE(PL_no_sock_func, "setsockopt");
2183 return pp_getpeername(ARGS);
2185 DIE(PL_no_sock_func, "getsockname");
2193 int optype = PL_op->op_type;
2197 register IO *io = GvIOn(gv);
2200 if (!io || !IoIFP(io))
2203 sv = sv_2mortal(NEWSV(22, 257));
2204 (void)SvPOK_only(sv);
2208 fd = PerlIO_fileno(IoIFP(io));
2210 case OP_GETSOCKNAME:
2211 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2214 case OP_GETPEERNAME:
2215 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2217 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2219 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2220 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2221 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2222 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2223 sizeof(u_short) + sizeof(struct in_addr))) {
2230 #ifdef BOGUS_GETNAME_RETURN
2231 /* Interactive Unix, getpeername() and getsockname()
2232 does not return valid namelen */
2233 if (len == BOGUS_GETNAME_RETURN)
2234 len = sizeof(struct sockaddr);
2242 if (ckWARN(WARN_CLOSED))
2243 warner(WARN_CLOSED, "get{sock, peer}name() on closed fd");
2244 SETERRNO(EBADF,SS$_IVCHAN);
2249 DIE(PL_no_sock_func, "getpeername");
2257 return pp_stat(ARGS);
2267 if (PL_op->op_flags & OPf_REF) {
2268 tmpgv = cGVOP->op_gv;
2270 if (tmpgv != PL_defgv) {
2271 PL_laststype = OP_STAT;
2273 sv_setpv(PL_statname, "");
2274 PL_laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
2275 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &PL_statcache) : -1);
2277 if (PL_laststatval < 0)
2282 if (SvTYPE(sv) == SVt_PVGV) {
2286 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2287 tmpgv = (GV*)SvRV(sv);
2290 sv_setpv(PL_statname, SvPV(sv,PL_na));
2293 PL_laststype = PL_op->op_type;
2294 if (PL_op->op_type == OP_LSTAT)
2295 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, PL_na), &PL_statcache);
2298 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, PL_na), &PL_statcache);
2299 if (PL_laststatval < 0) {
2300 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, PL_na), '\n'))
2301 warner(WARN_NEWLINE, PL_warn_nl, "stat");
2307 if (gimme != G_ARRAY) {
2308 if (gimme != G_VOID)
2309 XPUSHs(boolSV(max));
2315 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_dev)));
2316 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ino)));
2317 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mode)));
2318 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_nlink)));
2319 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_uid)));
2320 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_gid)));
2321 #ifdef USE_STAT_RDEV
2322 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_rdev)));
2324 PUSHs(sv_2mortal(newSVpv("", 0)));
2326 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_size)));
2328 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_atime)));
2329 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_mtime)));
2330 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_ctime)));
2332 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_atime)));
2333 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mtime)));
2334 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ctime)));
2336 #ifdef USE_STAT_BLOCKS
2337 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blksize)));
2338 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blocks)));
2340 PUSHs(sv_2mortal(newSVpv("", 0)));
2341 PUSHs(sv_2mortal(newSVpv("", 0)));
2351 #if defined(HAS_ACCESS) && defined(R_OK)
2352 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2353 result = access(TOPp, R_OK);
2361 result = my_stat(ARGS);
2363 result = my_stat(ARGS);
2368 if (cando(S_IRUSR, 0, &PL_statcache))
2377 #if defined(HAS_ACCESS) && defined(W_OK)
2378 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2379 result = access(TOPp, W_OK);
2387 result = my_stat(ARGS);
2389 result = my_stat(ARGS);
2394 if (cando(S_IWUSR, 0, &PL_statcache))
2403 #if defined(HAS_ACCESS) && defined(X_OK)
2404 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2405 result = access(TOPp, X_OK);
2413 result = my_stat(ARGS);
2415 result = my_stat(ARGS);
2420 if (cando(S_IXUSR, 0, &PL_statcache))
2429 #ifdef PERL_EFF_ACCESS_R_OK
2430 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2431 result = PERL_EFF_ACCESS_R_OK(TOPp);
2439 result = my_stat(ARGS);
2441 result = my_stat(ARGS);
2446 if (cando(S_IRUSR, 1, &PL_statcache))
2455 #ifdef PERL_EFF_ACCESS_W_OK
2456 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2457 result = PERL_EFF_ACCESS_W_OK(TOPp);
2465 result = my_stat(ARGS);
2467 result = my_stat(ARGS);
2472 if (cando(S_IWUSR, 1, &PL_statcache))
2481 #ifdef PERL_EFF_ACCESS_X_OK
2482 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2483 result = PERL_EFF_ACCESS_X_OK(TOPp);
2491 result = my_stat(ARGS);
2493 result = my_stat(ARGS);
2498 if (cando(S_IXUSR, 1, &PL_statcache))
2505 I32 result = my_stat(ARGS);
2514 return pp_ftrowned(ARGS);
2519 I32 result = my_stat(ARGS);
2523 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ? PL_euid : PL_uid) )
2530 I32 result = my_stat(ARGS);
2534 if (!PL_statcache.st_size)
2541 I32 result = my_stat(ARGS);
2545 PUSHi(PL_statcache.st_size);
2551 I32 result = my_stat(ARGS);
2555 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_mtime) / 86400.0 );
2561 I32 result = my_stat(ARGS);
2565 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_atime) / 86400.0 );
2571 I32 result = my_stat(ARGS);
2575 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_ctime) / 86400.0 );
2581 I32 result = my_stat(ARGS);
2585 if (S_ISSOCK(PL_statcache.st_mode))
2592 I32 result = my_stat(ARGS);
2596 if (S_ISCHR(PL_statcache.st_mode))
2603 I32 result = my_stat(ARGS);
2607 if (S_ISBLK(PL_statcache.st_mode))
2614 I32 result = my_stat(ARGS);
2618 if (S_ISREG(PL_statcache.st_mode))
2625 I32 result = my_stat(ARGS);
2629 if (S_ISDIR(PL_statcache.st_mode))
2636 I32 result = my_stat(ARGS);
2640 if (S_ISFIFO(PL_statcache.st_mode))
2647 I32 result = my_lstat(ARGS);
2651 if (S_ISLNK(PL_statcache.st_mode))
2660 I32 result = my_stat(ARGS);
2664 if (PL_statcache.st_mode & S_ISUID)
2674 I32 result = my_stat(ARGS);
2678 if (PL_statcache.st_mode & S_ISGID)
2688 I32 result = my_stat(ARGS);
2692 if (PL_statcache.st_mode & S_ISVTX)
2703 char *tmps = Nullch;
2705 if (PL_op->op_flags & OPf_REF)
2707 else if (isGV(TOPs))
2709 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2710 gv = (GV*)SvRV(POPs);
2712 gv = gv_fetchpv(tmps = POPp, FALSE, SVt_PVIO);
2714 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2715 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2716 else if (tmps && isDIGIT(*tmps))
2720 if (PerlLIO_isatty(fd))
2725 #if defined(atarist) /* this will work with atariST. Configure will
2726 make guesses for other systems. */
2727 # define FILE_base(f) ((f)->_base)
2728 # define FILE_ptr(f) ((f)->_ptr)
2729 # define FILE_cnt(f) ((f)->_cnt)
2730 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2740 register STDCHAR *s;
2745 if (PL_op->op_flags & OPf_REF)
2747 else if (isGV(TOPs))
2749 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2750 gv = (GV*)SvRV(POPs);
2756 if (gv == PL_defgv) {
2758 io = GvIO(PL_statgv);
2761 goto really_filename;
2766 PL_laststatval = -1;
2767 sv_setpv(PL_statname, "");
2768 io = GvIO(PL_statgv);
2770 if (io && IoIFP(io)) {
2771 if (! PerlIO_has_base(IoIFP(io)))
2772 DIE("-T and -B not implemented on filehandles");
2773 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2774 if (PL_laststatval < 0)
2776 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
2777 if (PL_op->op_type == OP_FTTEXT)
2781 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2782 i = PerlIO_getc(IoIFP(io));
2784 (void)PerlIO_ungetc(IoIFP(io),i);
2786 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2788 len = PerlIO_get_bufsiz(IoIFP(io));
2789 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2790 /* sfio can have large buffers - limit to 512 */
2795 if (ckWARN(WARN_UNOPENED))
2796 warner(WARN_UNOPENED, "Test on unopened file <%s>",
2797 GvENAME(cGVOP->op_gv));
2798 SETERRNO(EBADF,RMS$_IFI);
2806 PL_laststatval = -1;
2807 sv_setpv(PL_statname, SvPV(sv, PL_na));
2809 i = PerlLIO_open3(SvPV(sv, PL_na), O_RDONLY, 0);
2811 i = PerlLIO_open(SvPV(sv, PL_na), 0);
2814 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, PL_na), '\n'))
2815 warner(WARN_NEWLINE, PL_warn_nl, "open");
2818 PL_laststatval = PerlLIO_fstat(i, &PL_statcache);
2819 if (PL_laststatval < 0)
2821 len = PerlLIO_read(i, tbuf, 512);
2822 (void)PerlLIO_close(i);
2824 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
2825 RETPUSHNO; /* special case NFS directories */
2826 RETPUSHYES; /* null file is anything */
2831 /* now scan s to look for textiness */
2832 /* XXX ASCII dependent code */
2834 for (i = 0; i < len; i++, s++) {
2835 if (!*s) { /* null never allowed in text */
2840 else if (!(isPRINT(*s) || isSPACE(*s)))
2846 *s != '\n' && *s != '\r' && *s != '\b' &&
2847 *s != '\t' && *s != '\f' && *s != 27)
2852 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2860 return pp_fttext(ARGS);
2875 if (!tmps || !*tmps) {
2876 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
2878 tmps = SvPV(*svp, PL_na);
2880 if (!tmps || !*tmps) {
2881 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
2883 tmps = SvPV(*svp, PL_na);
2886 if (!tmps || !*tmps) {
2887 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
2889 tmps = SvPV(*svp, PL_na);
2892 TAINT_PROPER("chdir");
2893 PUSHi( PerlDir_chdir(tmps) >= 0 );
2895 /* Clear the DEFAULT element of ENV so we'll get the new value
2897 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
2904 djSP; dMARK; dTARGET;
2907 value = (I32)apply(PL_op->op_type, MARK, SP);
2912 DIE(PL_no_func, "Unsupported function chown");
2922 TAINT_PROPER("chroot");
2923 PUSHi( chroot(tmps) >= 0 );
2926 DIE(PL_no_func, "chroot");
2932 djSP; dMARK; dTARGET;
2934 value = (I32)apply(PL_op->op_type, MARK, SP);
2942 djSP; dMARK; dTARGET;
2944 value = (I32)apply(PL_op->op_type, MARK, SP);
2952 djSP; dMARK; dTARGET;
2954 value = (I32)apply(PL_op->op_type, MARK, SP);
2966 char *tmps = SvPV(TOPs, PL_na);
2967 TAINT_PROPER("rename");
2969 anum = PerlLIO_rename(tmps, tmps2);
2971 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
2972 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
2975 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
2976 (void)UNLINK(tmps2);
2977 if (!(anum = link(tmps, tmps2)))
2978 anum = UNLINK(tmps);
2991 char *tmps = SvPV(TOPs, PL_na);
2992 TAINT_PROPER("link");
2993 SETi( link(tmps, tmps2) >= 0 );
2995 DIE(PL_no_func, "Unsupported function link");
3005 char *tmps = SvPV(TOPs, PL_na);
3006 TAINT_PROPER("symlink");
3007 SETi( symlink(tmps, tmps2) >= 0 );
3010 DIE(PL_no_func, "symlink");
3019 char buf[MAXPATHLEN];
3022 #ifndef INCOMPLETE_TAINTS
3026 len = readlink(tmps, buf, sizeof buf);
3034 RETSETUNDEF; /* just pretend it's a normal file */
3038 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3040 dooneliner(cmd, filename)
3044 char *save_filename = filename;
3050 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3051 strcpy(cmdline, cmd);
3052 strcat(cmdline, " ");
3053 for (s = cmdline + strlen(cmdline); *filename; ) {
3058 myfp = PerlProc_popen(cmdline, "r");
3062 SV *tmpsv = sv_newmortal();
3063 /* Need to save/restore 'PL_rs' ?? */
3064 s = sv_gets(tmpsv, myfp, 0);
3065 (void)PerlProc_pclose(myfp);
3069 #ifdef HAS_SYS_ERRLIST
3074 /* you don't see this */
3076 #ifdef HAS_SYS_ERRLIST
3084 if (instr(s, errmsg)) {
3091 #define EACCES EPERM
3093 if (instr(s, "cannot make"))
3094 SETERRNO(EEXIST,RMS$_FEX);
3095 else if (instr(s, "existing file"))
3096 SETERRNO(EEXIST,RMS$_FEX);
3097 else if (instr(s, "ile exists"))
3098 SETERRNO(EEXIST,RMS$_FEX);
3099 else if (instr(s, "non-exist"))
3100 SETERRNO(ENOENT,RMS$_FNF);
3101 else if (instr(s, "does not exist"))
3102 SETERRNO(ENOENT,RMS$_FNF);
3103 else if (instr(s, "not empty"))
3104 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3105 else if (instr(s, "cannot access"))
3106 SETERRNO(EACCES,RMS$_PRV);
3108 SETERRNO(EPERM,RMS$_PRV);
3111 else { /* some mkdirs return no failure indication */
3112 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3113 if (PL_op->op_type == OP_RMDIR)
3118 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3134 char *tmps = SvPV(TOPs, PL_na);
3136 TAINT_PROPER("mkdir");
3138 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3140 SETi( dooneliner("mkdir", tmps) );
3141 oldumask = PerlLIO_umask(0);
3142 PerlLIO_umask(oldumask);
3143 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3154 TAINT_PROPER("rmdir");
3156 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3158 XPUSHi( dooneliner("rmdir", tmps) );
3163 /* Directory calls. */
3168 #if defined(Direntry_t) && defined(HAS_READDIR)
3169 char *dirname = POPp;
3171 register IO *io = GvIOn(gv);
3177 PerlDir_close(IoDIRP(io));
3178 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3184 SETERRNO(EBADF,RMS$_DIR);
3187 DIE(PL_no_dir_func, "opendir");
3194 #if defined(Direntry_t) && defined(HAS_READDIR)
3196 Direntry_t *readdir _((DIR *));
3198 register Direntry_t *dp;
3200 register IO *io = GvIOn(gv);
3203 if (!io || !IoDIRP(io))
3206 if (GIMME == G_ARRAY) {
3208 while (dp = (Direntry_t *)PerlDir_read(IoDIRP(io))) {
3210 sv = newSVpv(dp->d_name, dp->d_namlen);
3212 sv = newSVpv(dp->d_name, 0);
3214 #ifndef INCOMPLETE_TAINTS
3217 XPUSHs(sv_2mortal(sv));
3221 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3224 sv = newSVpv(dp->d_name, dp->d_namlen);
3226 sv = newSVpv(dp->d_name, 0);
3228 #ifndef INCOMPLETE_TAINTS
3231 XPUSHs(sv_2mortal(sv));
3237 SETERRNO(EBADF,RMS$_ISI);
3238 if (GIMME == G_ARRAY)
3243 DIE(PL_no_dir_func, "readdir");
3250 #if defined(HAS_TELLDIR) || defined(telldir)
3251 # ifdef NEED_TELLDIR_PROTO /* XXX does _anyone_ need this? --AD 2/20/1998 */
3252 long telldir _((DIR *));
3255 register IO *io = GvIOn(gv);
3257 if (!io || !IoDIRP(io))
3260 PUSHi( PerlDir_tell(IoDIRP(io)) );
3264 SETERRNO(EBADF,RMS$_ISI);
3267 DIE(PL_no_dir_func, "telldir");
3274 #if defined(HAS_SEEKDIR) || defined(seekdir)
3277 register IO *io = GvIOn(gv);
3279 if (!io || !IoDIRP(io))
3282 (void)PerlDir_seek(IoDIRP(io), along);
3287 SETERRNO(EBADF,RMS$_ISI);
3290 DIE(PL_no_dir_func, "seekdir");
3297 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3299 register IO *io = GvIOn(gv);
3301 if (!io || !IoDIRP(io))
3304 (void)PerlDir_rewind(IoDIRP(io));
3308 SETERRNO(EBADF,RMS$_ISI);
3311 DIE(PL_no_dir_func, "rewinddir");
3318 #if defined(Direntry_t) && defined(HAS_READDIR)
3320 register IO *io = GvIOn(gv);
3322 if (!io || !IoDIRP(io))
3325 #ifdef VOID_CLOSEDIR
3326 PerlDir_close(IoDIRP(io));
3328 if (PerlDir_close(IoDIRP(io)) < 0) {
3329 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3338 SETERRNO(EBADF,RMS$_IFI);
3341 DIE(PL_no_dir_func, "closedir");
3345 /* Process control. */
3360 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
3361 sv_setiv(GvSV(tmpgv), (IV)getpid());
3362 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3367 DIE(PL_no_func, "Unsupported function fork");
3373 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3378 childpid = wait4pid(-1, &argflags, 0);
3379 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3383 DIE(PL_no_func, "Unsupported function wait");
3389 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3397 childpid = wait4pid(childpid, &argflags, optype);
3398 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3402 DIE(PL_no_func, "Unsupported function waitpid");
3408 djSP; dMARK; dORIGMARK; dTARGET;
3413 Sigsave_t ihand,qhand; /* place to save signals during system() */
3415 if (SP - MARK == 1) {
3417 char *junk = SvPV(TOPs, PL_na);
3419 TAINT_PROPER("system");
3422 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
3423 while ((childpid = vfork()) == -1) {
3424 if (errno != EAGAIN) {
3433 rsignal_save(SIGINT, SIG_IGN, &ihand);
3434 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
3436 result = wait4pid(childpid, &status, 0);
3437 } while (result == -1 && errno == EINTR);
3438 (void)rsignal_restore(SIGINT, &ihand);
3439 (void)rsignal_restore(SIGQUIT, &qhand);
3440 STATUS_NATIVE_SET(result == -1 ? -1 : status);
3441 do_execfree(); /* free any memory child malloced on vfork */
3443 PUSHi(STATUS_CURRENT);
3446 if (PL_op->op_flags & OPf_STACKED) {
3447 SV *really = *++MARK;
3448 value = (I32)do_aexec(really, MARK, SP);
3450 else if (SP - MARK != 1)
3451 value = (I32)do_aexec(Nullsv, MARK, SP);
3453 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), PL_na));
3456 #else /* ! FORK or VMS or OS/2 */
3457 if (PL_op->op_flags & OPf_STACKED) {
3458 SV *really = *++MARK;
3459 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
3461 else if (SP - MARK != 1)
3462 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
3464 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), PL_na));
3466 STATUS_NATIVE_SET(value);
3469 PUSHi(STATUS_CURRENT);
3470 #endif /* !FORK or VMS */
3476 djSP; dMARK; dORIGMARK; dTARGET;
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)
3485 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3489 (void ) do_aspawn(Nullsv, MARK, SP);
3493 value = (I32)do_aexec(Nullsv, MARK, SP);
3498 char *junk = SvPV(*SP, PL_na);
3500 TAINT_PROPER("exec");
3503 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), PL_na));
3506 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), PL_na));
3509 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), PL_na));
3520 djSP; dMARK; dTARGET;
3523 value = (I32)apply(PL_op->op_type, MARK, SP);
3528 DIE(PL_no_func, "Unsupported function kill");
3536 XPUSHi( getppid() );
3539 DIE(PL_no_func, "getppid");
3555 value = (I32)BSD_GETPGRP(pid);
3557 if (pid != 0 && pid != getpid())
3558 DIE("POSIX getpgrp can't take an argument");
3559 value = (I32)getpgrp();
3564 DIE(PL_no_func, "getpgrp()");
3583 TAINT_PROPER("setpgrp");
3585 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3587 if ((pgrp != 0 && pgrp != getpid()) || (pid != 0 && pid != getpid()))
3588 DIE("POSIX setpgrp can't take an argument");
3589 SETi( setpgrp() >= 0 );
3590 #endif /* USE_BSDPGRP */
3593 DIE(PL_no_func, "setpgrp()");
3602 #ifdef HAS_GETPRIORITY
3605 SETi( getpriority(which, who) );
3608 DIE(PL_no_func, "getpriority()");
3618 #ifdef HAS_SETPRIORITY
3622 TAINT_PROPER("setpriority");
3623 SETi( setpriority(which, who, niceval) >= 0 );
3626 DIE(PL_no_func, "setpriority()");
3636 XPUSHn( time(Null(Time_t*)) );
3638 XPUSHi( time(Null(Time_t*)) );
3643 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3644 to HZ. Probably. For now, assume that if the system
3645 defines HZ, it does so correctly. (Will this break
3647 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3648 it's supported. --AD 9/96.
3664 DIE("times not implemented");
3669 (void)PerlProc_times(&PL_timesbuf);
3671 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
3672 /* struct tms, though same data */
3676 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_utime)/HZ)));
3677 if (GIMME == G_ARRAY) {
3678 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_stime)/HZ)));
3679 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cutime)/HZ)));
3680 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cstime)/HZ)));
3683 #endif /* HAS_TIMES */
3688 return pp_gmtime(ARGS);
3696 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3697 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3698 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3704 when = (Time_t)SvNVx(POPs);
3706 when = (Time_t)SvIVx(POPs);
3709 if (PL_op->op_type == OP_LOCALTIME)
3710 tmbuf = localtime(&when);
3712 tmbuf = gmtime(&when);
3716 if (GIMME != G_ARRAY) {
3721 tsv = newSVpvf("%s %s %2d %02d:%02d:%02d %d",
3722 dayname[tmbuf->tm_wday],
3723 monname[tmbuf->tm_mon],
3728 tmbuf->tm_year + 1900);
3729 PUSHs(sv_2mortal(tsv));
3732 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3733 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3734 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3735 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3736 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3737 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3738 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3739 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3740 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3751 anum = alarm((unsigned int)anum);
3758 DIE(PL_no_func, "Unsupported function alarm");
3769 (void)time(&lasttime);
3774 PerlProc_sleep((unsigned int)duration);
3777 XPUSHi(when - lasttime);
3781 /* Shared memory. */
3785 return pp_semget(ARGS);
3790 return pp_semctl(ARGS);
3795 return pp_shmwrite(ARGS);
3800 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3801 djSP; dMARK; dTARGET;
3802 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
3807 return pp_semget(ARGS);
3811 /* Message passing. */
3815 return pp_semget(ARGS);
3820 return pp_semctl(ARGS);
3825 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3826 djSP; dMARK; dTARGET;
3827 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3832 return pp_semget(ARGS);
3838 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3839 djSP; dMARK; dTARGET;
3840 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3845 return pp_semget(ARGS);
3853 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3854 djSP; dMARK; dTARGET;
3855 int anum = do_ipcget(PL_op->op_type, MARK, SP);
3862 DIE("System V IPC is not implemented on this machine");
3868 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3869 djSP; dMARK; dTARGET;
3870 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
3878 PUSHp(zero_but_true, ZBTLEN);
3882 return pp_semget(ARGS);
3888 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3889 djSP; dMARK; dTARGET;
3890 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3895 return pp_semget(ARGS);
3899 /* Get system info. */
3903 #ifdef HAS_GETHOSTBYNAME
3904 return pp_ghostent(ARGS);
3906 DIE(PL_no_sock_func, "gethostbyname");
3912 #ifdef HAS_GETHOSTBYADDR
3913 return pp_ghostent(ARGS);
3915 DIE(PL_no_sock_func, "gethostbyaddr");
3922 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
3923 I32 which = PL_op->op_type;
3924 register char **elem;
3926 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
3927 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
3928 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
3929 struct hostent *PerlSock_gethostent(void);
3931 struct hostent *hent;
3935 if (which == OP_GHBYNAME)
3936 #ifdef HAS_GETHOSTBYNAME
3937 hent = PerlSock_gethostbyname(POPp);
3939 DIE(PL_no_sock_func, "gethostbyname");
3941 else if (which == OP_GHBYADDR) {
3942 #ifdef HAS_GETHOSTBYADDR
3943 int addrtype = POPi;
3946 Netdb_host_t addr = (Netdb_host_t) SvPV(addrsv, addrlen);
3948 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
3950 DIE(PL_no_sock_func, "gethostbyaddr");
3954 #ifdef HAS_GETHOSTENT
3955 hent = PerlSock_gethostent();
3957 DIE(PL_no_sock_func, "gethostent");
3960 #ifdef HOST_NOT_FOUND
3962 STATUS_NATIVE_SET(h_errno);
3965 if (GIMME != G_ARRAY) {
3966 PUSHs(sv = sv_newmortal());
3968 if (which == OP_GHBYNAME) {
3970 sv_setpvn(sv, hent->h_addr, hent->h_length);
3973 sv_setpv(sv, (char*)hent->h_name);
3979 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3980 sv_setpv(sv, (char*)hent->h_name);
3981 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3982 for (elem = hent->h_aliases; elem && *elem; elem++) {
3983 sv_catpv(sv, *elem);
3985 sv_catpvn(sv, " ", 1);
3987 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3988 sv_setiv(sv, (IV)hent->h_addrtype);
3989 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3990 len = hent->h_length;
3991 sv_setiv(sv, (IV)len);
3993 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3994 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
3995 sv_setpvn(sv, *elem, len);
3998 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4000 sv_setpvn(sv, hent->h_addr, len);
4005 DIE(PL_no_sock_func, "gethostent");
4011 #ifdef HAS_GETNETBYNAME
4012 return pp_gnetent(ARGS);
4014 DIE(PL_no_sock_func, "getnetbyname");
4020 #ifdef HAS_GETNETBYADDR
4021 return pp_gnetent(ARGS);
4023 DIE(PL_no_sock_func, "getnetbyaddr");
4030 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4031 I32 which = PL_op->op_type;
4032 register char **elem;
4034 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4035 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4036 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4037 struct netent *PerlSock_getnetent(void);
4039 struct netent *nent;
4041 if (which == OP_GNBYNAME)
4042 #ifdef HAS_GETNETBYNAME
4043 nent = PerlSock_getnetbyname(POPp);
4045 DIE(PL_no_sock_func, "getnetbyname");
4047 else if (which == OP_GNBYADDR) {
4048 #ifdef HAS_GETNETBYADDR
4049 int addrtype = POPi;
4050 Netdb_net_t addr = (Netdb_net_t) U_L(POPn);
4051 nent = PerlSock_getnetbyaddr(addr, addrtype);
4053 DIE(PL_no_sock_func, "getnetbyaddr");
4057 #ifdef HAS_GETNETENT
4058 nent = PerlSock_getnetent();
4060 DIE(PL_no_sock_func, "getnetent");
4064 if (GIMME != G_ARRAY) {
4065 PUSHs(sv = sv_newmortal());
4067 if (which == OP_GNBYNAME)
4068 sv_setiv(sv, (IV)nent->n_net);
4070 sv_setpv(sv, nent->n_name);
4076 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4077 sv_setpv(sv, nent->n_name);
4078 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4079 for (elem = nent->n_aliases; elem && *elem; elem++) {
4080 sv_catpv(sv, *elem);
4082 sv_catpvn(sv, " ", 1);
4084 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4085 sv_setiv(sv, (IV)nent->n_addrtype);
4086 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4087 sv_setiv(sv, (IV)nent->n_net);
4092 DIE(PL_no_sock_func, "getnetent");
4098 #ifdef HAS_GETPROTOBYNAME
4099 return pp_gprotoent(ARGS);
4101 DIE(PL_no_sock_func, "getprotobyname");
4107 #ifdef HAS_GETPROTOBYNUMBER
4108 return pp_gprotoent(ARGS);
4110 DIE(PL_no_sock_func, "getprotobynumber");
4117 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4118 I32 which = PL_op->op_type;
4119 register char **elem;
4121 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4122 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4123 struct protoent *PerlSock_getprotobynumber(int);
4124 struct protoent *PerlSock_getprotoent(void);
4126 struct protoent *pent;
4128 if (which == OP_GPBYNAME)
4129 #ifdef HAS_GETPROTOBYNAME
4130 pent = PerlSock_getprotobyname(POPp);
4132 DIE(PL_no_sock_func, "getprotobyname");
4134 else if (which == OP_GPBYNUMBER)
4135 #ifdef HAS_GETPROTOBYNUMBER
4136 pent = PerlSock_getprotobynumber(POPi);
4138 DIE(PL_no_sock_func, "getprotobynumber");
4141 #ifdef HAS_GETPROTOENT
4142 pent = PerlSock_getprotoent();
4144 DIE(PL_no_sock_func, "getprotoent");
4148 if (GIMME != G_ARRAY) {
4149 PUSHs(sv = sv_newmortal());
4151 if (which == OP_GPBYNAME)
4152 sv_setiv(sv, (IV)pent->p_proto);
4154 sv_setpv(sv, pent->p_name);
4160 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4161 sv_setpv(sv, pent->p_name);
4162 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4163 for (elem = pent->p_aliases; elem && *elem; elem++) {
4164 sv_catpv(sv, *elem);
4166 sv_catpvn(sv, " ", 1);
4168 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4169 sv_setiv(sv, (IV)pent->p_proto);
4174 DIE(PL_no_sock_func, "getprotoent");
4180 #ifdef HAS_GETSERVBYNAME
4181 return pp_gservent(ARGS);
4183 DIE(PL_no_sock_func, "getservbyname");
4189 #ifdef HAS_GETSERVBYPORT
4190 return pp_gservent(ARGS);
4192 DIE(PL_no_sock_func, "getservbyport");
4199 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4200 I32 which = PL_op->op_type;
4201 register char **elem;
4203 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4204 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4205 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4206 struct servent *PerlSock_getservent(void);
4208 struct servent *sent;
4210 if (which == OP_GSBYNAME) {
4211 #ifdef HAS_GETSERVBYNAME
4215 if (proto && !*proto)
4218 sent = PerlSock_getservbyname(name, proto);
4220 DIE(PL_no_sock_func, "getservbyname");
4223 else if (which == OP_GSBYPORT) {
4224 #ifdef HAS_GETSERVBYPORT
4226 unsigned short port = POPu;
4229 port = PerlSock_htons(port);
4231 sent = PerlSock_getservbyport(port, proto);
4233 DIE(PL_no_sock_func, "getservbyport");
4237 #ifdef HAS_GETSERVENT
4238 sent = PerlSock_getservent();
4240 DIE(PL_no_sock_func, "getservent");
4244 if (GIMME != G_ARRAY) {
4245 PUSHs(sv = sv_newmortal());
4247 if (which == OP_GSBYNAME) {
4249 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4251 sv_setiv(sv, (IV)(sent->s_port));
4255 sv_setpv(sv, sent->s_name);
4261 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4262 sv_setpv(sv, sent->s_name);
4263 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4264 for (elem = sent->s_aliases; elem && *elem; elem++) {
4265 sv_catpv(sv, *elem);
4267 sv_catpvn(sv, " ", 1);
4269 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4271 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4273 sv_setiv(sv, (IV)(sent->s_port));
4275 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4276 sv_setpv(sv, sent->s_proto);
4281 DIE(PL_no_sock_func, "getservent");
4288 #ifdef HAS_SETHOSTENT
4289 PerlSock_sethostent(TOPi);
4292 DIE(PL_no_sock_func, "sethostent");
4299 #ifdef HAS_SETNETENT
4300 PerlSock_setnetent(TOPi);
4303 DIE(PL_no_sock_func, "setnetent");
4310 #ifdef HAS_SETPROTOENT
4311 PerlSock_setprotoent(TOPi);
4314 DIE(PL_no_sock_func, "setprotoent");
4321 #ifdef HAS_SETSERVENT
4322 PerlSock_setservent(TOPi);
4325 DIE(PL_no_sock_func, "setservent");
4332 #ifdef HAS_ENDHOSTENT
4333 PerlSock_endhostent();
4337 DIE(PL_no_sock_func, "endhostent");
4344 #ifdef HAS_ENDNETENT
4345 PerlSock_endnetent();
4349 DIE(PL_no_sock_func, "endnetent");
4356 #ifdef HAS_ENDPROTOENT
4357 PerlSock_endprotoent();
4361 DIE(PL_no_sock_func, "endprotoent");
4368 #ifdef HAS_ENDSERVENT
4369 PerlSock_endservent();
4373 DIE(PL_no_sock_func, "endservent");
4380 return pp_gpwent(ARGS);
4382 DIE(PL_no_func, "getpwnam");
4389 return pp_gpwent(ARGS);
4391 DIE(PL_no_func, "getpwuid");
4398 #if defined(HAS_PASSWD) && defined(HAS_GETPWENT)
4399 I32 which = PL_op->op_type;
4401 struct passwd *pwent;
4403 if (which == OP_GPWNAM)
4404 pwent = getpwnam(POPp);
4405 else if (which == OP_GPWUID)
4406 pwent = getpwuid(POPi);
4408 pwent = (struct passwd *)getpwent();
4411 if (GIMME != G_ARRAY) {
4412 PUSHs(sv = sv_newmortal());
4414 if (which == OP_GPWNAM)
4415 sv_setiv(sv, (IV)pwent->pw_uid);
4417 sv_setpv(sv, pwent->pw_name);
4423 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4424 sv_setpv(sv, pwent->pw_name);
4426 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4428 sv_setpv(sv, pwent->pw_passwd);
4431 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4432 sv_setiv(sv, (IV)pwent->pw_uid);
4434 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4435 sv_setiv(sv, (IV)pwent->pw_gid);
4437 /* pw_change, pw_quota, and pw_age are mutually exclusive. */
4438 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4440 sv_setiv(sv, (IV)pwent->pw_change);
4443 sv_setiv(sv, (IV)pwent->pw_quota);
4446 sv_setpv(sv, pwent->pw_age);
4451 /* pw_class and pw_comment are mutually exclusive. */
4452 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4454 sv_setpv(sv, pwent->pw_class);
4457 sv_setpv(sv, pwent->pw_comment);
4461 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4463 sv_setpv(sv, pwent->pw_gecos);
4465 #ifndef INCOMPLETE_TAINTS
4466 /* pw_gecos is tainted because user himself can diddle with it. */
4470 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4471 sv_setpv(sv, pwent->pw_dir);
4473 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4474 sv_setpv(sv, pwent->pw_shell);
4477 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4478 sv_setiv(sv, (IV)pwent->pw_expire);
4483 DIE(PL_no_func, "getpwent");
4490 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT) && !defined(CYGWIN32)
4494 DIE(PL_no_func, "setpwent");
4501 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
4505 DIE(PL_no_func, "endpwent");
4512 return pp_ggrent(ARGS);
4514 DIE(PL_no_func, "getgrnam");
4521 return pp_ggrent(ARGS);
4523 DIE(PL_no_func, "getgrgid");
4530 #if defined(HAS_GROUP) && defined(HAS_GETGRENT)
4531 I32 which = PL_op->op_type;
4532 register char **elem;
4534 struct group *grent;
4536 if (which == OP_GGRNAM)
4537 grent = (struct group *)getgrnam(POPp);
4538 else if (which == OP_GGRGID)
4539 grent = (struct group *)getgrgid(POPi);
4541 grent = (struct group *)getgrent();
4544 if (GIMME != G_ARRAY) {
4545 PUSHs(sv = sv_newmortal());
4547 if (which == OP_GGRNAM)
4548 sv_setiv(sv, (IV)grent->gr_gid);
4550 sv_setpv(sv, grent->gr_name);
4556 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4557 sv_setpv(sv, grent->gr_name);
4559 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4561 sv_setpv(sv, grent->gr_passwd);
4564 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4565 sv_setiv(sv, (IV)grent->gr_gid);
4567 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4568 for (elem = grent->gr_mem; elem && *elem; elem++) {
4569 sv_catpv(sv, *elem);
4571 sv_catpvn(sv, " ", 1);
4577 DIE(PL_no_func, "getgrent");
4584 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
4588 DIE(PL_no_func, "setgrent");
4595 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
4599 DIE(PL_no_func, "endgrent");
4609 if (!(tmps = PerlProc_getlogin()))
4611 PUSHp(tmps, strlen(tmps));
4614 DIE(PL_no_func, "getlogin");
4618 /* Miscellaneous. */
4623 djSP; dMARK; dORIGMARK; dTARGET;
4624 register I32 items = SP - MARK;
4625 unsigned long a[20];
4631 while (++MARK <= SP) {
4632 if (SvTAINTED(*MARK)) {
4638 TAINT_PROPER("syscall");
4641 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4642 * or where sizeof(long) != sizeof(char*). But such machines will
4643 * not likely have syscall implemented either, so who cares?
4645 while (++MARK <= SP) {
4646 if (SvNIOK(*MARK) || !i)
4647 a[i++] = SvIV(*MARK);
4648 else if (*MARK == &PL_sv_undef)
4651 a[i++] = (unsigned long)SvPV_force(*MARK, PL_na);
4657 DIE("Too many args to syscall");
4659 DIE("Too few args to syscall");
4661 retval = syscall(a[0]);
4664 retval = syscall(a[0],a[1]);
4667 retval = syscall(a[0],a[1],a[2]);
4670 retval = syscall(a[0],a[1],a[2],a[3]);
4673 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4676 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4679 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4682 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4686 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4689 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4692 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4696 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4700 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4704 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4705 a[10],a[11],a[12],a[13]);
4707 #endif /* atarist */
4713 DIE(PL_no_func, "syscall");
4717 #ifdef FCNTL_EMULATE_FLOCK
4719 /* XXX Emulate flock() with fcntl().
4720 What's really needed is a good file locking module.
4724 fcntl_emulate_flock(int fd, int operation)
4728 switch (operation & ~LOCK_NB) {
4730 flock.l_type = F_RDLCK;
4733 flock.l_type = F_WRLCK;
4736 flock.l_type = F_UNLCK;
4742 flock.l_whence = SEEK_SET;
4743 flock.l_start = flock.l_len = 0L;
4745 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4748 #endif /* FCNTL_EMULATE_FLOCK */
4750 #ifdef LOCKF_EMULATE_FLOCK
4752 /* XXX Emulate flock() with lockf(). This is just to increase
4753 portability of scripts. The calls are not completely
4754 interchangeable. What's really needed is a good file
4758 /* The lockf() constants might have been defined in <unistd.h>.
4759 Unfortunately, <unistd.h> causes troubles on some mixed
4760 (BSD/POSIX) systems, such as SunOS 4.1.3.
4762 Further, the lockf() constants aren't POSIX, so they might not be
4763 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4764 just stick in the SVID values and be done with it. Sigh.
4768 # define F_ULOCK 0 /* Unlock a previously locked region */
4771 # define F_LOCK 1 /* Lock a region for exclusive use */
4774 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4777 # define F_TEST 3 /* Test a region for other processes locks */
4781 lockf_emulate_flock (fd, operation)
4789 /* flock locks entire file so for lockf we need to do the same */
4791 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
4792 if (pos > 0) /* is seekable and needs to be repositioned */
4793 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
4794 pos = -1; /* seek failed, so don't seek back afterwards */
4797 switch (operation) {
4799 /* LOCK_SH - get a shared lock */
4801 /* LOCK_EX - get an exclusive lock */
4803 i = lockf (fd, F_LOCK, 0);
4806 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4807 case LOCK_SH|LOCK_NB:
4808 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4809 case LOCK_EX|LOCK_NB:
4810 i = lockf (fd, F_TLOCK, 0);
4812 if ((errno == EAGAIN) || (errno == EACCES))
4813 errno = EWOULDBLOCK;
4816 /* LOCK_UN - unlock (non-blocking is a no-op) */
4818 case LOCK_UN|LOCK_NB:
4819 i = lockf (fd, F_ULOCK, 0);
4822 /* Default - can't decipher operation */
4829 if (pos > 0) /* need to restore position of the handle */
4830 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
4835 #endif /* LOCKF_EMULATE_FLOCK */