3 * Copyright (c) 1991-1999, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
20 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
27 extern "C" int syscall(unsigned long,...);
32 # include <sys/wait.h>
36 # include <sys/resource.h>
39 #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
40 # include <sys/socket.h>
46 # include <net/errno.h>
53 #include <sys/select.h>
57 /* XXX Configure test needed.
58 h_errno might not be a simple 'int', especially for multi-threaded
59 applications, see "extern int errno in perl.h". Creating such
60 a test requires taking into account the differences between
61 compiling multithreaded and singlethreaded ($ccflags et al).
62 HOST_NOT_FOUND is typically defined in <netdb.h>.
64 #if defined(HOST_NOT_FOUND) && !defined(h_errno)
72 struct passwd *getpwnam _((char *));
73 struct passwd *getpwuid _((Uid_t));
76 struct passwd *getpwent _((void));
84 struct group *getgrnam _((char *));
85 struct group *getgrgid _((Gid_t));
88 struct group *getgrent _((void));
93 # if defined(_MSC_VER) || defined(__MINGW32__)
94 # include <sys/utime.h>
103 #include <sys/file.h>
106 /* Put this after #includes because fork and vfork prototypes may conflict. */
111 /* Put this after #includes because <unistd.h> defines _XOPEN_*. */
113 # if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED) || defined(__GLIBC__)
114 # define Sock_size_t Size_t
116 # define Sock_size_t int
120 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
121 static int dooneliner _((char *cmd, char *filename));
125 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
128 # define my_chsize PerlLIO_chsize
133 #else /* no flock() */
135 /* fcntl.h might not have been included, even if it exists, because
136 the current Configure only sets I_FCNTL if it's needed to pick up
137 the *_OK constants. Make sure it has been included before testing
138 the fcntl() locking constants. */
139 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
143 # if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
144 # define FLOCK fcntl_emulate_flock
145 # define FCNTL_EMULATE_FLOCK
146 # else /* no flock() or fcntl(F_SETLK,...) */
148 # define FLOCK lockf_emulate_flock
149 # define LOCKF_EMULATE_FLOCK
151 # endif /* no flock() or fcntl(F_SETLK,...) */
154 static int FLOCK _((int, int));
157 * These are the flock() constants. Since this sytems doesn't have
158 * flock(), the values of the constants are probably not available.
172 # endif /* emulating flock() */
174 #endif /* no flock() */
177 static char zero_but_true[ZBTLEN + 1] = "0 but true";
179 #if defined(I_SYS_ACCESS) && !defined(R_OK)
180 # include <sys/access.h>
183 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
184 #undef PERL_EFF_ACCESS_W_OK
185 #undef PERL_EFF_ACCESS_X_OK
187 /* F_OK unused: if stat() cannot find it... */
189 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
190 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
191 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
192 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
193 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
196 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
197 # if defined(I_SYS_SECURITY)
198 # include <sys/security.h>
200 /* XXX Configure test needed for eaccess */
203 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
204 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
205 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
208 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
209 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
210 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
214 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
216 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
217 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
218 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
221 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
222 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
223 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
226 emulate_eaccess (const char* path, int mode) {
227 Uid_t ruid = getuid();
228 Uid_t euid = geteuid();
229 Gid_t rgid = getgid();
230 Gid_t egid = getegid();
233 MUTEX_LOCK(&PL_cred_mutex);
234 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
235 croak("switching effective uid is not implemented");
238 if (setreuid(euid, ruid))
241 if (setresuid(euid, ruid, (Uid_t)-1))
244 croak("entering effective uid failed");
247 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
248 croak("switching effective gid is not implemented");
251 if (setregid(egid, rgid))
254 if (setresgid(egid, rgid, (Gid_t)-1))
257 croak("entering effective gid failed");
260 res = access(path, mode);
263 if (setreuid(ruid, euid))
266 if (setresuid(ruid, euid, (Uid_t)-1))
269 croak("leaving effective uid failed");
272 if (setregid(rgid, egid))
275 if (setresgid(rgid, egid, (Gid_t)-1))
278 croak("leaving effective gid failed");
279 MUTEX_UNLOCK(&PL_cred_mutex);
283 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
284 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
285 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
288 #if !defined(PERL_EFF_ACCESS_R_OK)
290 emulate_eaccess (const char* path, int mode) {
291 croak("switching effective uid is not implemented");
306 fp = PerlProc_popen(tmps, "r");
308 if (gimme == G_VOID) {
310 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
314 else if (gimme == G_SCALAR) {
315 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
316 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
327 if (sv_gets(sv, fp, 0) == Nullch) {
331 XPUSHs(sv_2mortal(sv));
332 if (SvLEN(sv) - SvCUR(sv) > 20) {
333 SvLEN_set(sv, SvCUR(sv)+1);
334 Renew(SvPVX(sv), SvLEN(sv), char);
339 STATUS_NATIVE_SET(PerlProc_pclose(fp));
340 TAINT; /* "I believe that this is not gratuitous!" */
343 STATUS_NATIVE_SET(-1);
344 if (gimme == G_SCALAR)
354 tryAMAGICunTARGET(iter, -1);
361 * The external globbing program may use things we can't control,
362 * so for security reasons we must assume the worst.
365 taint_proper(PL_no_security, "glob");
369 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
370 PL_last_in_gv = (GV*)*PL_stack_sp--;
372 SAVESPTR(PL_rs); /* This is not permanent, either. */
373 PL_rs = sv_2mortal(newSVpvn("\000", 1));
376 *SvPVX(PL_rs) = '\n';
380 result = do_readline();
385 #if 0 /* XXX never used! */
389 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
390 return do_readline();
396 PL_last_in_gv = cGVOP->op_gv;
397 return do_readline();
406 if (SP - MARK != 1) {
408 do_join(TARG, &PL_sv_no, MARK, SP);
415 tmps = SvPV(tmpsv, len);
418 (void)SvUPGRADE(error, SVt_PV);
419 if (SvPOK(error) && SvCUR(error))
420 sv_catpv(error, "\t...caught");
422 tmps = SvPV(tmpsv, len);
425 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
438 if (SP - MARK != 1) {
440 do_join(TARG, &PL_sv_no, MARK, SP);
442 tmps = SvPV(tmpsv, len);
448 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
452 (void)SvUPGRADE(error, SVt_PV);
453 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
455 SvSetSV(error,tmpsv);
456 else if (sv_isobject(error)) {
457 HV *stash = SvSTASH(SvRV(error));
458 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
460 SV *file = sv_2mortal(newSVsv(GvSV(PL_curcop->cop_filegv)));
461 SV *line = sv_2mortal(newSViv(PL_curcop->cop_line));
468 perl_call_sv((SV*)GvCV(gv),
469 G_SCALAR|G_EVAL|G_KEEPERR);
470 sv_setsv(error,*PL_stack_sp--);
476 if (SvPOK(error) && SvCUR(error))
477 sv_catpv(error, "\t...propagated");
479 tmps = SvPV(tmpsv, len);
483 tmpsv = sv_2mortal(newSVpvn("Died", 4));
501 DIE(PL_no_usym, "filehandle");
506 DIE(PL_no_usym, "filehandle");
508 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
509 if (sv == &PL_sv_undef) {
511 PerlIO *fp = PerlIO_tmpfile();
513 PerlIO *fp = tmpfile();
515 if (fp != Nullfp && do_open(gv, "+>&", 3, FALSE, 0, 0, fp))
516 PUSHi( (I32)PL_forkprocess );
521 tmps = SvPV(sv, len);
522 if (do_open(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp))
523 PUSHi( (I32)PL_forkprocess );
524 else if (PL_forkprocess == 0) /* we are a new child */
542 if (mg = SvTIED_mg((SV*)gv, 'q')) {
544 XPUSHs(SvTIED_obj((SV*)gv, mg));
547 perl_call_method("CLOSE", G_SCALAR);
553 PUSHs(boolSV(do_close(gv, TRUE)));
573 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
574 DIE(PL_no_usym, "filehandle");
579 do_close(rgv, FALSE);
581 do_close(wgv, FALSE);
583 if (PerlProc_pipe(fd) < 0)
586 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
587 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
588 IoIFP(wstio) = IoOFP(wstio);
592 if (!IoIFP(rstio) || !IoOFP(wstio)) {
593 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
594 else PerlLIO_close(fd[0]);
595 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
596 else PerlLIO_close(fd[1]);
599 #if defined(HAS_FCNTL) && defined(F_SETFD)
600 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
601 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
608 DIE(PL_no_func, "pipe");
621 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
623 PUSHi(PerlIO_fileno(fp));
634 anum = PerlLIO_umask(0);
635 (void)PerlLIO_umask(anum);
638 anum = PerlLIO_umask(POPi);
639 TAINT_PROPER("umask");
642 /* Only DIE if trying to restrict permissions on `user' (self).
643 * Otherwise it's harmless and more useful to just return undef
644 * since 'group' and 'other' concepts probably don't exist here. */
645 if (MAXARG >= 1 && (POPi & 0700))
646 DIE("umask not implemented");
647 XPUSHs(&PL_sv_undef);
665 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
668 if (do_binmode(fp,IoTYPE(io),TRUE))
683 I32 markoff = MARK - PL_stack_base;
690 switch(SvTYPE(varsv)) {
692 methname = "TIEHASH";
695 methname = "TIEARRAY";
698 methname = "TIEHANDLE";
702 methname = "TIESCALAR";
707 if (sv_isobject(*MARK)) {
709 PUSHSTACKi(PERLSI_MAGIC);
715 perl_call_method(methname, G_SCALAR);
718 /* Not clear why we don't call perl_call_method here too.
719 * perhaps to get different error message ?
721 stash = gv_stashsv(*MARK, FALSE);
722 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
723 DIE("Can't locate object method \"%s\" via package \"%s\"",
724 methname, SvPV(*MARK,n_a));
727 PUSHSTACKi(PERLSI_MAGIC);
733 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
739 if (sv_isobject(sv)) {
740 sv_unmagic(varsv, how);
741 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
744 SP = PL_stack_base + markoff;
753 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
755 if (ckWARN(WARN_UNTIE)) {
757 if (mg = SvTIED_mg(sv, how)) {
758 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
760 "untie attempted while %lu inner references still exist",
761 (unsigned long)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
773 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
776 if (mg = SvTIED_mg(sv, how)) {
777 SV *osv = SvTIED_obj(sv, mg);
778 if (osv == mg->mg_obj)
779 osv = sv_mortalcopy(osv);
797 sv = sv_mortalcopy(&PL_sv_no);
798 sv_setpv(sv, "AnyDBM_File");
799 stash = gv_stashsv(sv, FALSE);
800 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
802 perl_require_pv("AnyDBM_File.pm");
804 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
805 DIE("No dbm on this machine");
815 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
817 PUSHs(sv_2mortal(newSViv(O_RDWR)));
820 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
823 if (!sv_isobject(TOPs)) {
828 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
831 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
835 if (sv_isobject(TOPs)) {
836 sv_unmagic((SV *) hv, 'P');
837 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
845 return pp_untie(ARGS);
859 struct timeval timebuf;
860 struct timeval *tbuf = &timebuf;
864 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
869 # if BYTEORDER & 0xf0000
870 # define ORDERBYTE (0x88888888 - BYTEORDER)
872 # define ORDERBYTE (0x4444 - BYTEORDER)
878 for (i = 1; i <= 3; i++) {
886 /* little endians can use vecs directly */
887 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
888 # if SELECT_MIN_BITS > 1
889 /* If SELECT_MIN_BITS is greater than one we most probably will want
890 * to align the sizes with SELECT_MIN_BITS/8 because for example
891 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
892 * UNIX, Solaris, NeXT, Rhapsody) the smallest quantum select() operates
893 * on (sets/tests/clears bits) is 32 bits. */
894 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
896 growsize = sizeof(fd_set);
905 masksize = NFDBITS / NBBY;
907 masksize = sizeof(long); /* documented int, everyone seems to use long */
909 growsize = maxlen + (masksize - (maxlen % masksize));
910 Zero(&fd_sets[0], 4, char*);
918 timebuf.tv_sec = (long)value;
919 value -= (double)timebuf.tv_sec;
920 timebuf.tv_usec = (long)(value * 1000000.0);
923 tbuf = Null(struct timeval*);
925 for (i = 1; i <= 3; i++) {
932 SvPV_force(sv,n_a); /* force string conversion */
935 Sv_Grow(sv, growsize);
939 while (++j <= growsize) {
943 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
945 New(403, fd_sets[i], growsize, char);
946 for (offset = 0; offset < growsize; offset += masksize) {
947 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
948 fd_sets[i][j+offset] = s[(k % masksize) + offset];
951 fd_sets[i] = SvPVX(sv);
955 nfound = PerlSock_select(
957 (Select_fd_set_t) fd_sets[1],
958 (Select_fd_set_t) fd_sets[2],
959 (Select_fd_set_t) fd_sets[3],
961 for (i = 1; i <= 3; i++) {
964 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
966 for (offset = 0; offset < growsize; offset += masksize) {
967 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
968 s[(k % masksize) + offset] = fd_sets[i][j+offset];
970 Safefree(fd_sets[i]);
977 if (GIMME == G_ARRAY && tbuf) {
978 value = (double)(timebuf.tv_sec) +
979 (double)(timebuf.tv_usec) / 1000000.0;
980 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
985 DIE("select not implemented");
994 (void)SvREFCNT_inc(gv);
996 SvREFCNT_dec(PL_defoutgv);
1003 GV *newdefout, *egv;
1006 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1008 egv = GvEGV(PL_defoutgv);
1013 XPUSHs(&PL_sv_undef);
1015 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1016 if (gvp && *gvp == egv) {
1017 gv_efullname3(TARG, PL_defoutgv, Nullch);
1021 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1026 if (!GvIO(newdefout))
1027 gv_IOadd(newdefout);
1028 setdefout(newdefout);
1047 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1048 I32 gimme = GIMME_V;
1050 XPUSHs(SvTIED_obj((SV*)gv, mg));
1053 perl_call_method("GETC", gimme);
1056 if (gimme == G_SCALAR)
1057 SvSetMagicSV_nosteal(TARG, TOPs);
1060 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1063 sv_setpv(TARG, " ");
1064 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1071 return pp_sysread(ARGS);
1075 doform(CV *cv, GV *gv, OP *retop)
1078 register PERL_CONTEXT *cx;
1079 I32 gimme = GIMME_V;
1080 AV* padlist = CvPADLIST(cv);
1081 SV** svp = AvARRAY(padlist);
1087 PUSHBLOCK(cx, CXt_SUB, PL_stack_sp);
1089 SAVESPTR(PL_curpad);
1090 PL_curpad = AvARRAY((AV*)svp[1]);
1092 setdefout(gv); /* locally select filehandle so $% et al work */
1124 SV *tmpsv = sv_newmortal();
1125 gv_efullname3(tmpsv, fgv, Nullch);
1126 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
1128 DIE("Not a format reference");
1131 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1133 IoFLAGS(io) &= ~IOf_DIDTOP;
1134 return doform(cv,gv,PL_op->op_next);
1140 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1141 register IO *io = GvIOp(gv);
1142 PerlIO *ofp = IoOFP(io);
1146 register PERL_CONTEXT *cx;
1148 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1149 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1150 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1151 PL_formtarget != PL_toptarget)
1155 if (!IoTOP_GV(io)) {
1159 if (!IoTOP_NAME(io)) {
1160 if (!IoFMT_NAME(io))
1161 IoFMT_NAME(io) = savepv(GvNAME(gv));
1162 topname = sv_2mortal(newSVpvf("%s_TOP", IoFMT_NAME(io)));
1163 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1164 if ((topgv && GvFORM(topgv)) ||
1165 !gv_fetchpv("top",FALSE,SVt_PVFM))
1166 IoTOP_NAME(io) = savepv(SvPVX(topname));
1168 IoTOP_NAME(io) = savepv("top");
1170 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1171 if (!topgv || !GvFORM(topgv)) {
1172 IoLINES_LEFT(io) = 100000000;
1175 IoTOP_GV(io) = topgv;
1177 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1178 I32 lines = IoLINES_LEFT(io);
1179 char *s = SvPVX(PL_formtarget);
1180 if (lines <= 0) /* Yow, header didn't even fit!!! */
1182 while (lines-- > 0) {
1183 s = strchr(s, '\n');
1189 PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
1190 sv_chop(PL_formtarget, s);
1191 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1194 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1195 PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
1196 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1198 PL_formtarget = PL_toptarget;
1199 IoFLAGS(io) |= IOf_DIDTOP;
1202 DIE("bad top format reference");
1205 SV *tmpsv = sv_newmortal();
1206 gv_efullname3(tmpsv, fgv, Nullch);
1207 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
1210 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1211 return doform(cv,gv,PL_op);
1215 POPBLOCK(cx,PL_curpm);
1221 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1223 warner(WARN_IO, "Filehandle only opened for input");
1224 else if (ckWARN(WARN_CLOSED))
1225 warner(WARN_CLOSED, "Write on closed filehandle");
1230 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1231 if (ckWARN(WARN_IO))
1232 warner(WARN_IO, "page overflow");
1234 if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
1238 FmLINES(PL_formtarget) = 0;
1239 SvCUR_set(PL_formtarget, 0);
1240 *SvEND(PL_formtarget) = '\0';
1241 if (IoFLAGS(io) & IOf_FLUSH)
1242 (void)PerlIO_flush(fp);
1246 PL_formtarget = PL_bodytarget;
1248 return pop_return();
1253 djSP; dMARK; dORIGMARK;
1261 if (PL_op->op_flags & OPf_STACKED)
1266 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1267 if (MARK == ORIGMARK) {
1270 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1274 *MARK = SvTIED_obj((SV*)gv, mg);
1277 perl_call_method("PRINTF", G_SCALAR);
1280 MARK = ORIGMARK + 1;
1287 if (!(io = GvIO(gv))) {
1288 if (ckWARN(WARN_UNOPENED)) {
1289 gv_fullname3(sv, gv, Nullch);
1290 warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,n_a));
1292 SETERRNO(EBADF,RMS$_IFI);
1295 else if (!(fp = IoOFP(io))) {
1296 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1297 gv_fullname3(sv, gv, Nullch);
1299 warner(WARN_IO, "Filehandle %s opened only for input",
1301 else if (ckWARN(WARN_CLOSED))
1302 warner(WARN_CLOSED, "printf on closed filehandle %s",
1305 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1309 #ifdef USE_LOCALE_NUMERIC
1310 if (PL_op->op_private & OPpLOCALE)
1311 SET_NUMERIC_LOCAL();
1313 SET_NUMERIC_STANDARD();
1315 do_sprintf(sv, SP - MARK, MARK + 1);
1316 if (!do_print(sv, fp))
1319 if (IoFLAGS(io) & IOf_FLUSH)
1320 if (PerlIO_flush(fp) == EOF)
1331 PUSHs(&PL_sv_undef);
1352 tmps = SvPV(sv, len);
1353 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1354 IoLINES(GvIOp(gv)) = 0;
1358 PUSHs(&PL_sv_undef);
1365 djSP; dMARK; dORIGMARK; dTARGET;
1371 Sock_size_t bufsize;
1377 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1378 (mg = SvTIED_mg((SV*)gv, 'q')))
1383 *MARK = SvTIED_obj((SV*)gv, mg);
1385 perl_call_method("READ", G_SCALAR);
1398 sv_setpvn(bufsv, "", 0);
1399 buffer = SvPV_force(bufsv, blen);
1400 length = SvIVx(*++MARK);
1402 DIE("Negative length");
1405 offset = SvIVx(*++MARK);
1409 if (!io || !IoIFP(io))
1412 if (PL_op->op_type == OP_RECV) {
1413 char namebuf[MAXPATHLEN];
1414 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1415 bufsize = sizeof (struct sockaddr_in);
1417 bufsize = sizeof namebuf;
1419 buffer = SvGROW(bufsv, length+1);
1420 /* 'offset' means 'flags' here */
1421 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1422 (struct sockaddr *)namebuf, &bufsize);
1425 SvCUR_set(bufsv, length);
1426 *SvEND(bufsv) = '\0';
1427 (void)SvPOK_only(bufsv);
1429 /* This should not be marked tainted if the fp is marked clean */
1430 if (!(IoFLAGS(io) & IOf_UNTAINT))
1431 SvTAINTED_on(bufsv);
1433 sv_setpvn(TARG, namebuf, bufsize);
1438 if (PL_op->op_type == OP_RECV)
1439 DIE(PL_no_sock_func, "recv");
1443 DIE("Offset outside string");
1446 bufsize = SvCUR(bufsv);
1447 buffer = SvGROW(bufsv, length+offset+1);
1448 if (offset > bufsize) { /* Zero any newly allocated space */
1449 Zero(buffer+bufsize, offset-bufsize, char);
1451 if (PL_op->op_type == OP_SYSREAD) {
1452 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1453 if (IoTYPE(io) == 's') {
1454 length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1455 buffer+offset, length, 0);
1460 length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1461 buffer+offset, length);
1465 #ifdef HAS_SOCKET__bad_code_maybe
1466 if (IoTYPE(io) == 's') {
1467 char namebuf[MAXPATHLEN];
1468 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1469 bufsize = sizeof (struct sockaddr_in);
1471 bufsize = sizeof namebuf;
1473 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1474 (struct sockaddr *)namebuf, &bufsize);
1479 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1480 /* fread() returns 0 on both error and EOF */
1481 if (length == 0 && PerlIO_error(IoIFP(io)))
1486 SvCUR_set(bufsv, length+offset);
1487 *SvEND(bufsv) = '\0';
1488 (void)SvPOK_only(bufsv);
1490 /* This should not be marked tainted if the fp is marked clean */
1491 if (!(IoFLAGS(io) & IOf_UNTAINT))
1492 SvTAINTED_on(bufsv);
1505 int items = (SP - PL_stack_base) - TOPMARK;
1509 sv = sv_2mortal(newSViv(sv_len(*SP)));
1513 return pp_send(ARGS);
1518 djSP; dMARK; dORIGMARK; dTARGET;
1529 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1533 *MARK = SvTIED_obj((SV*)gv, mg);
1535 perl_call_method("WRITE", G_SCALAR);
1546 buffer = SvPV(bufsv, blen);
1547 length = SvIVx(*++MARK);
1549 DIE("Negative length");
1552 if (!io || !IoIFP(io)) {
1554 if (ckWARN(WARN_CLOSED)) {
1555 if (PL_op->op_type == OP_SYSWRITE)
1556 warner(WARN_CLOSED, "Syswrite on closed filehandle");
1558 warner(WARN_CLOSED, "Send on closed socket");
1561 else if (PL_op->op_type == OP_SYSWRITE) {
1563 offset = SvIVx(*++MARK);
1566 DIE("Offset outside string");
1568 } else if (offset >= blen && blen > 0)
1569 DIE("Offset outside string");
1572 if (length > blen - offset)
1573 length = blen - offset;
1574 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1575 if (IoTYPE(io) == 's') {
1576 length = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1577 buffer+offset, length, 0);
1582 length = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1583 buffer+offset, length);
1587 else if (SP > MARK) {
1590 sockbuf = SvPVx(*++MARK, mlen);
1591 length = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1592 (struct sockaddr *)sockbuf, mlen);
1595 length = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1599 DIE(PL_no_sock_func, "send");
1614 return pp_sysread(ARGS);
1625 gv = PL_last_in_gv = (GV*)POPs;
1626 PUSHs(boolSV(!gv || do_eof(gv)));
1638 gv = PL_last_in_gv = (GV*)POPs;
1639 PUSHi( do_tell(gv) );
1645 return pp_sysseek(ARGS);
1653 Off_t offset = POPl;
1655 gv = PL_last_in_gv = (GV*)POPs;
1656 if (PL_op->op_type == OP_SEEK)
1657 PUSHs(boolSV(do_seek(gv, offset, whence)));
1659 Off_t n = do_sysseek(gv, offset, whence);
1660 PUSHs((n < 0) ? &PL_sv_undef
1661 : sv_2mortal(n ? newSViv((IV)n)
1662 : newSVpvn(zero_but_true, ZBTLEN)));
1670 Off_t len = (Off_t)POPn;
1676 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1677 if (PL_op->op_flags & OPf_SPECIAL) {
1678 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
1680 TAINT_PROPER("truncate");
1681 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1683 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1685 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1694 if (SvTYPE(sv) == SVt_PVGV) {
1695 tmpgv = (GV*)sv; /* *main::FRED for example */
1698 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1699 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1703 name = SvPV(sv, n_a);
1704 TAINT_PROPER("truncate");
1706 if (truncate(name, len) < 0)
1711 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
1714 if (my_chsize(tmpfd, len) < 0)
1716 PerlLIO_close(tmpfd);
1725 SETERRNO(EBADF,RMS$_IFI);
1728 DIE("truncate not implemented");
1734 return pp_ioctl(ARGS);
1741 unsigned int func = U_I(POPn);
1742 int optype = PL_op->op_type;
1748 if (!io || !argsv || !IoIFP(io)) {
1749 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1753 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1756 s = SvPV_force(argsv, len);
1757 need = IOCPARM_LEN(func);
1759 s = Sv_Grow(argsv, need + 1);
1760 SvCUR_set(argsv, need);
1763 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1766 retval = SvIV(argsv);
1767 s = (char*)retval; /* ouch */
1770 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1772 if (optype == OP_IOCTL)
1774 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1776 DIE("ioctl is not implemented");
1780 #if defined(OS2) && defined(__EMX__)
1781 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1783 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1786 DIE("fcntl is not implemented");
1790 if (s[SvCUR(argsv)] != 17)
1791 DIE("Possible memory corruption: %s overflowed 3rd argument",
1792 PL_op_name[optype]);
1793 s[SvCUR(argsv)] = 0; /* put our null back */
1794 SvSETMAGIC(argsv); /* Assume it has changed */
1803 PUSHp(zero_but_true, ZBTLEN);
1823 fp = IoIFP(GvIOp(gv));
1827 (void)PerlIO_flush(fp);
1828 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
1835 DIE(PL_no_func, "flock()");
1847 int protocol = POPi;
1855 SETERRNO(EBADF,LIB$_INVARG);
1861 do_close(gv, FALSE);
1863 TAINT_PROPER("socket");
1864 fd = PerlSock_socket(domain, type, protocol);
1867 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1868 IoOFP(io) = PerlIO_fdopen(fd, "w");
1870 if (!IoIFP(io) || !IoOFP(io)) {
1871 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1872 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1873 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
1879 DIE(PL_no_sock_func, "socket");
1886 #ifdef HAS_SOCKETPAIR
1891 int protocol = POPi;
1904 do_close(gv1, FALSE);
1906 do_close(gv2, FALSE);
1908 TAINT_PROPER("socketpair");
1909 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
1911 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1912 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1914 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1915 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1917 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1918 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1919 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1920 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
1921 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1922 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1923 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
1929 DIE(PL_no_sock_func, "socketpair");
1937 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
1938 extern GETPRIVMODE();
1939 extern GETUSERMODE();
1944 register IO *io = GvIOn(gv);
1948 int mpeprivmode = 0;
1951 if (!io || !IoIFP(io))
1954 addr = SvPV(addrsv, len);
1955 TAINT_PROPER("bind");
1956 #ifdef MPE /* Deal with MPE bind() peculiarities */
1957 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
1958 /* The address *MUST* stupidly be zero. */
1959 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
1960 /* PRIV mode is required to bind() to ports < 1024. */
1961 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
1962 ((struct sockaddr_in *)addr)->sin_port > 0) {
1963 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
1968 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
1969 (struct sockaddr *)addr, len) >= 0)
1972 #ifdef MPE /* Switch back to USER mode */
1983 if (ckWARN(WARN_CLOSED))
1984 warner(WARN_CLOSED, "bind() on closed fd");
1985 SETERRNO(EBADF,SS$_IVCHAN);
1988 DIE(PL_no_sock_func, "bind");
1999 register IO *io = GvIOn(gv);
2002 if (!io || !IoIFP(io))
2005 addr = SvPV(addrsv, len);
2006 TAINT_PROPER("connect");
2007 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2013 if (ckWARN(WARN_CLOSED))
2014 warner(WARN_CLOSED, "connect() on closed fd");
2015 SETERRNO(EBADF,SS$_IVCHAN);
2018 DIE(PL_no_sock_func, "connect");
2028 register IO *io = GvIOn(gv);
2030 if (!io || !IoIFP(io))
2033 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2039 if (ckWARN(WARN_CLOSED))
2040 warner(WARN_CLOSED, "listen() on closed fd");
2041 SETERRNO(EBADF,SS$_IVCHAN);
2044 DIE(PL_no_sock_func, "listen");
2056 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2057 Sock_size_t len = sizeof saddr;
2069 if (!gstio || !IoIFP(gstio))
2074 do_close(ngv, FALSE);
2076 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2079 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2080 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2081 IoTYPE(nstio) = 's';
2082 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2083 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2084 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2085 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2089 PUSHp((char *)&saddr, len);
2093 if (ckWARN(WARN_CLOSED))
2094 warner(WARN_CLOSED, "accept() on closed fd");
2095 SETERRNO(EBADF,SS$_IVCHAN);
2101 DIE(PL_no_sock_func, "accept");
2111 register IO *io = GvIOn(gv);
2113 if (!io || !IoIFP(io))
2116 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2120 if (ckWARN(WARN_CLOSED))
2121 warner(WARN_CLOSED, "shutdown() on closed fd");
2122 SETERRNO(EBADF,SS$_IVCHAN);
2125 DIE(PL_no_sock_func, "shutdown");
2132 return pp_ssockopt(ARGS);
2134 DIE(PL_no_sock_func, "getsockopt");
2142 int optype = PL_op->op_type;
2145 unsigned int optname;
2151 if (optype == OP_GSOCKOPT)
2152 sv = sv_2mortal(NEWSV(22, 257));
2155 optname = (unsigned int) POPi;
2156 lvl = (unsigned int) POPi;
2160 if (!io || !IoIFP(io))
2163 fd = PerlIO_fileno(IoIFP(io));
2167 (void)SvPOK_only(sv);
2171 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2186 aint = (int)SvIV(sv);
2190 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2199 if (ckWARN(WARN_CLOSED))
2200 warner(WARN_CLOSED, "[gs]etsockopt() on closed fd");
2201 SETERRNO(EBADF,SS$_IVCHAN);
2206 DIE(PL_no_sock_func, "setsockopt");
2213 return pp_getpeername(ARGS);
2215 DIE(PL_no_sock_func, "getsockname");
2223 int optype = PL_op->op_type;
2227 register IO *io = GvIOn(gv);
2230 if (!io || !IoIFP(io))
2233 sv = sv_2mortal(NEWSV(22, 257));
2234 (void)SvPOK_only(sv);
2238 fd = PerlIO_fileno(IoIFP(io));
2240 case OP_GETSOCKNAME:
2241 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2244 case OP_GETPEERNAME:
2245 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2247 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2249 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2250 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2251 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2252 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2253 sizeof(u_short) + sizeof(struct in_addr))) {
2260 #ifdef BOGUS_GETNAME_RETURN
2261 /* Interactive Unix, getpeername() and getsockname()
2262 does not return valid namelen */
2263 if (len == BOGUS_GETNAME_RETURN)
2264 len = sizeof(struct sockaddr);
2272 if (ckWARN(WARN_CLOSED))
2273 warner(WARN_CLOSED, "get{sock, peer}name() on closed fd");
2274 SETERRNO(EBADF,SS$_IVCHAN);
2279 DIE(PL_no_sock_func, "getpeername");
2287 return pp_stat(ARGS);
2298 if (PL_op->op_flags & OPf_REF) {
2299 tmpgv = cGVOP->op_gv;
2301 if (tmpgv != PL_defgv) {
2302 PL_laststype = OP_STAT;
2304 sv_setpv(PL_statname, "");
2305 PL_laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
2306 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &PL_statcache) : -1);
2308 if (PL_laststatval < 0)
2313 if (SvTYPE(sv) == SVt_PVGV) {
2317 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2318 tmpgv = (GV*)SvRV(sv);
2321 sv_setpv(PL_statname, SvPV(sv,n_a));
2324 PL_laststype = PL_op->op_type;
2325 if (PL_op->op_type == OP_LSTAT)
2326 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2329 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2330 if (PL_laststatval < 0) {
2331 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2332 warner(WARN_NEWLINE, PL_warn_nl, "stat");
2338 if (gimme != G_ARRAY) {
2339 if (gimme != G_VOID)
2340 XPUSHs(boolSV(max));
2346 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_dev)));
2347 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ino)));
2348 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mode)));
2349 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_nlink)));
2350 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_uid)));
2351 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_gid)));
2352 #ifdef USE_STAT_RDEV
2353 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_rdev)));
2355 PUSHs(sv_2mortal(newSVpvn("", 0)));
2357 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_size)));
2359 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_atime)));
2360 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_mtime)));
2361 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_ctime)));
2363 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_atime)));
2364 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mtime)));
2365 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ctime)));
2367 #ifdef USE_STAT_BLOCKS
2368 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blksize)));
2369 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blocks)));
2371 PUSHs(sv_2mortal(newSVpvn("", 0)));
2372 PUSHs(sv_2mortal(newSVpvn("", 0)));
2382 #if defined(HAS_ACCESS) && defined(R_OK)
2384 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2385 result = access(TOPpx, R_OK);
2393 result = my_stat(ARGS);
2395 result = my_stat(ARGS);
2400 if (cando(S_IRUSR, 0, &PL_statcache))
2409 #if defined(HAS_ACCESS) && defined(W_OK)
2411 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2412 result = access(TOPpx, W_OK);
2420 result = my_stat(ARGS);
2422 result = my_stat(ARGS);
2427 if (cando(S_IWUSR, 0, &PL_statcache))
2436 #if defined(HAS_ACCESS) && defined(X_OK)
2438 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2439 result = access(TOPpx, X_OK);
2447 result = my_stat(ARGS);
2449 result = my_stat(ARGS);
2454 if (cando(S_IXUSR, 0, &PL_statcache))
2463 #ifdef PERL_EFF_ACCESS_R_OK
2465 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2466 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2474 result = my_stat(ARGS);
2476 result = my_stat(ARGS);
2481 if (cando(S_IRUSR, 1, &PL_statcache))
2490 #ifdef PERL_EFF_ACCESS_W_OK
2492 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2493 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2501 result = my_stat(ARGS);
2503 result = my_stat(ARGS);
2508 if (cando(S_IWUSR, 1, &PL_statcache))
2517 #ifdef PERL_EFF_ACCESS_X_OK
2519 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2520 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2528 result = my_stat(ARGS);
2530 result = my_stat(ARGS);
2535 if (cando(S_IXUSR, 1, &PL_statcache))
2542 I32 result = my_stat(ARGS);
2551 return pp_ftrowned(ARGS);
2556 I32 result = my_stat(ARGS);
2560 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ? PL_euid : PL_uid) )
2567 I32 result = my_stat(ARGS);
2571 if (!PL_statcache.st_size)
2578 I32 result = my_stat(ARGS);
2582 PUSHi(PL_statcache.st_size);
2588 I32 result = my_stat(ARGS);
2592 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_mtime) / 86400.0 );
2598 I32 result = my_stat(ARGS);
2602 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_atime) / 86400.0 );
2608 I32 result = my_stat(ARGS);
2612 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_ctime) / 86400.0 );
2618 I32 result = my_stat(ARGS);
2622 if (S_ISSOCK(PL_statcache.st_mode))
2629 I32 result = my_stat(ARGS);
2633 if (S_ISCHR(PL_statcache.st_mode))
2640 I32 result = my_stat(ARGS);
2644 if (S_ISBLK(PL_statcache.st_mode))
2651 I32 result = my_stat(ARGS);
2655 if (S_ISREG(PL_statcache.st_mode))
2662 I32 result = my_stat(ARGS);
2666 if (S_ISDIR(PL_statcache.st_mode))
2673 I32 result = my_stat(ARGS);
2677 if (S_ISFIFO(PL_statcache.st_mode))
2684 I32 result = my_lstat(ARGS);
2688 if (S_ISLNK(PL_statcache.st_mode))
2697 I32 result = my_stat(ARGS);
2701 if (PL_statcache.st_mode & S_ISUID)
2711 I32 result = my_stat(ARGS);
2715 if (PL_statcache.st_mode & S_ISGID)
2725 I32 result = my_stat(ARGS);
2729 if (PL_statcache.st_mode & S_ISVTX)
2740 char *tmps = Nullch;
2743 if (PL_op->op_flags & OPf_REF)
2745 else if (isGV(TOPs))
2747 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2748 gv = (GV*)SvRV(POPs);
2750 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
2752 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2753 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2754 else if (tmps && isDIGIT(*tmps))
2758 if (PerlLIO_isatty(fd))
2763 #if defined(atarist) /* this will work with atariST. Configure will
2764 make guesses for other systems. */
2765 # define FILE_base(f) ((f)->_base)
2766 # define FILE_ptr(f) ((f)->_ptr)
2767 # define FILE_cnt(f) ((f)->_cnt)
2768 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2778 register STDCHAR *s;
2784 if (PL_op->op_flags & OPf_REF)
2786 else if (isGV(TOPs))
2788 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2789 gv = (GV*)SvRV(POPs);
2795 if (gv == PL_defgv) {
2797 io = GvIO(PL_statgv);
2800 goto really_filename;
2805 PL_laststatval = -1;
2806 sv_setpv(PL_statname, "");
2807 io = GvIO(PL_statgv);
2809 if (io && IoIFP(io)) {
2810 if (! PerlIO_has_base(IoIFP(io)))
2811 DIE("-T and -B not implemented on filehandles");
2812 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2813 if (PL_laststatval < 0)
2815 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
2816 if (PL_op->op_type == OP_FTTEXT)
2820 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2821 i = PerlIO_getc(IoIFP(io));
2823 (void)PerlIO_ungetc(IoIFP(io),i);
2825 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2827 len = PerlIO_get_bufsiz(IoIFP(io));
2828 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2829 /* sfio can have large buffers - limit to 512 */
2834 if (ckWARN(WARN_UNOPENED))
2835 warner(WARN_UNOPENED, "Test on unopened file <%s>",
2836 GvENAME(cGVOP->op_gv));
2837 SETERRNO(EBADF,RMS$_IFI);
2845 PL_laststatval = -1;
2846 sv_setpv(PL_statname, SvPV(sv, n_a));
2848 i = PerlLIO_open3(SvPV(sv, n_a), O_RDONLY, 0);
2850 i = PerlLIO_open(SvPV(sv, n_a), 0);
2853 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
2854 warner(WARN_NEWLINE, PL_warn_nl, "open");
2857 PL_laststatval = PerlLIO_fstat(i, &PL_statcache);
2858 if (PL_laststatval < 0)
2860 len = PerlLIO_read(i, tbuf, 512);
2861 (void)PerlLIO_close(i);
2863 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
2864 RETPUSHNO; /* special case NFS directories */
2865 RETPUSHYES; /* null file is anything */
2870 /* now scan s to look for textiness */
2871 /* XXX ASCII dependent code */
2873 for (i = 0; i < len; i++, s++) {
2874 if (!*s) { /* null never allowed in text */
2879 else if (!(isPRINT(*s) || isSPACE(*s)))
2885 *s != '\n' && *s != '\r' && *s != '\b' &&
2886 *s != '\t' && *s != '\f' && *s != 27)
2891 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2899 return pp_fttext(ARGS);
2915 if (!tmps || !*tmps) {
2916 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
2918 tmps = SvPV(*svp, n_a);
2920 if (!tmps || !*tmps) {
2921 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
2923 tmps = SvPV(*svp, n_a);
2926 if (!tmps || !*tmps) {
2927 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
2929 tmps = SvPV(*svp, n_a);
2932 TAINT_PROPER("chdir");
2933 PUSHi( PerlDir_chdir(tmps) >= 0 );
2935 /* Clear the DEFAULT element of ENV so we'll get the new value
2937 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
2944 djSP; dMARK; dTARGET;
2947 value = (I32)apply(PL_op->op_type, MARK, SP);
2952 DIE(PL_no_func, "Unsupported function chown");
2963 TAINT_PROPER("chroot");
2964 PUSHi( chroot(tmps) >= 0 );
2967 DIE(PL_no_func, "chroot");
2973 djSP; dMARK; dTARGET;
2975 value = (I32)apply(PL_op->op_type, MARK, SP);
2983 djSP; dMARK; dTARGET;
2985 value = (I32)apply(PL_op->op_type, MARK, SP);
2993 djSP; dMARK; dTARGET;
2995 value = (I32)apply(PL_op->op_type, MARK, SP);
3007 char *tmps2 = POPpx;
3008 char *tmps = SvPV(TOPs, n_a);
3009 TAINT_PROPER("rename");
3011 anum = PerlLIO_rename(tmps, tmps2);
3013 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3014 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3017 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3018 (void)UNLINK(tmps2);
3019 if (!(anum = link(tmps, tmps2)))
3020 anum = UNLINK(tmps);
3033 char *tmps2 = POPpx;
3034 char *tmps = SvPV(TOPs, n_a);
3035 TAINT_PROPER("link");
3036 SETi( link(tmps, tmps2) >= 0 );
3038 DIE(PL_no_func, "Unsupported function link");
3048 char *tmps2 = POPpx;
3049 char *tmps = SvPV(TOPs, n_a);
3050 TAINT_PROPER("symlink");
3051 SETi( symlink(tmps, tmps2) >= 0 );
3054 DIE(PL_no_func, "symlink");
3063 char buf[MAXPATHLEN];
3067 #ifndef INCOMPLETE_TAINTS
3071 len = readlink(tmps, buf, sizeof buf);
3079 RETSETUNDEF; /* just pretend it's a normal file */
3083 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3085 dooneliner(cmd, filename)
3089 char *save_filename = filename;
3095 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3096 strcpy(cmdline, cmd);
3097 strcat(cmdline, " ");
3098 for (s = cmdline + strlen(cmdline); *filename; ) {
3103 myfp = PerlProc_popen(cmdline, "r");
3107 SV *tmpsv = sv_newmortal();
3108 /* Need to save/restore 'PL_rs' ?? */
3109 s = sv_gets(tmpsv, myfp, 0);
3110 (void)PerlProc_pclose(myfp);
3114 #ifdef HAS_SYS_ERRLIST
3119 /* you don't see this */
3121 #ifdef HAS_SYS_ERRLIST
3129 if (instr(s, errmsg)) {
3136 #define EACCES EPERM
3138 if (instr(s, "cannot make"))
3139 SETERRNO(EEXIST,RMS$_FEX);
3140 else if (instr(s, "existing file"))
3141 SETERRNO(EEXIST,RMS$_FEX);
3142 else if (instr(s, "ile exists"))
3143 SETERRNO(EEXIST,RMS$_FEX);
3144 else if (instr(s, "non-exist"))
3145 SETERRNO(ENOENT,RMS$_FNF);
3146 else if (instr(s, "does not exist"))
3147 SETERRNO(ENOENT,RMS$_FNF);
3148 else if (instr(s, "not empty"))
3149 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3150 else if (instr(s, "cannot access"))
3151 SETERRNO(EACCES,RMS$_PRV);
3153 SETERRNO(EPERM,RMS$_PRV);
3156 else { /* some mkdirs return no failure indication */
3157 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3158 if (PL_op->op_type == OP_RMDIR)
3163 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3180 char *tmps = SvPV(TOPs, n_a);
3182 TAINT_PROPER("mkdir");
3184 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3186 SETi( dooneliner("mkdir", tmps) );
3187 oldumask = PerlLIO_umask(0);
3188 PerlLIO_umask(oldumask);
3189 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3201 TAINT_PROPER("rmdir");
3203 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3205 XPUSHi( dooneliner("rmdir", tmps) );
3210 /* Directory calls. */
3215 #if defined(Direntry_t) && defined(HAS_READDIR)
3217 char *dirname = POPpx;
3219 register IO *io = GvIOn(gv);
3225 PerlDir_close(IoDIRP(io));
3226 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3232 SETERRNO(EBADF,RMS$_DIR);
3235 DIE(PL_no_dir_func, "opendir");
3242 #if defined(Direntry_t) && defined(HAS_READDIR)
3244 Direntry_t *readdir _((DIR *));
3246 register Direntry_t *dp;
3248 register IO *io = GvIOn(gv);
3251 if (!io || !IoDIRP(io))
3254 if (GIMME == G_ARRAY) {
3256 while (dp = (Direntry_t *)PerlDir_read(IoDIRP(io))) {
3258 sv = newSVpvn(dp->d_name, dp->d_namlen);
3260 sv = newSVpv(dp->d_name, 0);
3262 #ifndef INCOMPLETE_TAINTS
3265 XPUSHs(sv_2mortal(sv));
3269 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3272 sv = newSVpvn(dp->d_name, dp->d_namlen);
3274 sv = newSVpv(dp->d_name, 0);
3276 #ifndef INCOMPLETE_TAINTS
3279 XPUSHs(sv_2mortal(sv));
3285 SETERRNO(EBADF,RMS$_ISI);
3286 if (GIMME == G_ARRAY)
3291 DIE(PL_no_dir_func, "readdir");
3298 #if defined(HAS_TELLDIR) || defined(telldir)
3299 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3300 /* XXX netbsd still seemed to.
3301 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3302 --JHI 1999-Feb-02 */
3303 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3304 long telldir _((DIR *));
3307 register IO *io = GvIOn(gv);
3309 if (!io || !IoDIRP(io))
3312 PUSHi( PerlDir_tell(IoDIRP(io)) );
3316 SETERRNO(EBADF,RMS$_ISI);
3319 DIE(PL_no_dir_func, "telldir");
3326 #if defined(HAS_SEEKDIR) || defined(seekdir)
3329 register IO *io = GvIOn(gv);
3331 if (!io || !IoDIRP(io))
3334 (void)PerlDir_seek(IoDIRP(io), along);
3339 SETERRNO(EBADF,RMS$_ISI);
3342 DIE(PL_no_dir_func, "seekdir");
3349 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3351 register IO *io = GvIOn(gv);
3353 if (!io || !IoDIRP(io))
3356 (void)PerlDir_rewind(IoDIRP(io));
3360 SETERRNO(EBADF,RMS$_ISI);
3363 DIE(PL_no_dir_func, "rewinddir");
3370 #if defined(Direntry_t) && defined(HAS_READDIR)
3372 register IO *io = GvIOn(gv);
3374 if (!io || !IoDIRP(io))
3377 #ifdef VOID_CLOSEDIR
3378 PerlDir_close(IoDIRP(io));
3380 if (PerlDir_close(IoDIRP(io)) < 0) {
3381 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3390 SETERRNO(EBADF,RMS$_IFI);
3393 DIE(PL_no_dir_func, "closedir");
3397 /* Process control. */
3412 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
3413 sv_setiv(GvSV(tmpgv), (IV)getpid());
3414 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3419 DIE(PL_no_func, "Unsupported function fork");
3425 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3430 childpid = wait4pid(-1, &argflags, 0);
3431 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3435 DIE(PL_no_func, "Unsupported function wait");
3441 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3449 childpid = wait4pid(childpid, &argflags, optype);
3450 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3454 DIE(PL_no_func, "Unsupported function waitpid");
3460 djSP; dMARK; dORIGMARK; dTARGET;
3465 Sigsave_t ihand,qhand; /* place to save signals during system() */
3468 if (SP - MARK == 1) {
3470 char *junk = SvPV(TOPs, n_a);
3472 TAINT_PROPER("system");
3475 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
3476 while ((childpid = vfork()) == -1) {
3477 if (errno != EAGAIN) {
3486 rsignal_save(SIGINT, SIG_IGN, &ihand);
3487 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
3489 result = wait4pid(childpid, &status, 0);
3490 } while (result == -1 && errno == EINTR);
3491 (void)rsignal_restore(SIGINT, &ihand);
3492 (void)rsignal_restore(SIGQUIT, &qhand);
3493 STATUS_NATIVE_SET(result == -1 ? -1 : status);
3494 do_execfree(); /* free any memory child malloced on vfork */
3496 PUSHi(STATUS_CURRENT);
3499 if (PL_op->op_flags & OPf_STACKED) {
3500 SV *really = *++MARK;
3501 value = (I32)do_aexec(really, MARK, SP);
3503 else if (SP - MARK != 1)
3504 value = (I32)do_aexec(Nullsv, MARK, SP);
3506 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3509 #else /* ! FORK or VMS or OS/2 */
3510 if (PL_op->op_flags & OPf_STACKED) {
3511 SV *really = *++MARK;
3512 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
3514 else if (SP - MARK != 1)
3515 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
3517 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3519 STATUS_NATIVE_SET(value);
3522 PUSHi(STATUS_CURRENT);
3523 #endif /* !FORK or VMS */
3529 djSP; dMARK; dORIGMARK; dTARGET;
3533 if (PL_op->op_flags & OPf_STACKED) {
3534 SV *really = *++MARK;
3535 value = (I32)do_aexec(really, MARK, SP);
3537 else if (SP - MARK != 1)
3539 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3543 (void ) do_aspawn(Nullsv, MARK, SP);
3547 value = (I32)do_aexec(Nullsv, MARK, SP);
3552 char *junk = SvPV(*SP, n_a);
3554 TAINT_PROPER("exec");
3557 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3560 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3563 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3574 djSP; dMARK; dTARGET;
3577 value = (I32)apply(PL_op->op_type, MARK, SP);
3582 DIE(PL_no_func, "Unsupported function kill");
3590 XPUSHi( getppid() );
3593 DIE(PL_no_func, "getppid");
3609 value = (I32)BSD_GETPGRP(pid);
3611 if (pid != 0 && pid != getpid())
3612 DIE("POSIX getpgrp can't take an argument");
3613 value = (I32)getpgrp();
3618 DIE(PL_no_func, "getpgrp()");
3637 TAINT_PROPER("setpgrp");
3639 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3641 if ((pgrp != 0 && pgrp != getpid()) || (pid != 0 && pid != getpid()))
3642 DIE("POSIX setpgrp can't take an argument");
3643 SETi( setpgrp() >= 0 );
3644 #endif /* USE_BSDPGRP */
3647 DIE(PL_no_func, "setpgrp()");
3656 #ifdef HAS_GETPRIORITY
3659 SETi( getpriority(which, who) );
3662 DIE(PL_no_func, "getpriority()");
3672 #ifdef HAS_SETPRIORITY
3676 TAINT_PROPER("setpriority");
3677 SETi( setpriority(which, who, niceval) >= 0 );
3680 DIE(PL_no_func, "setpriority()");
3690 XPUSHn( time(Null(Time_t*)) );
3692 XPUSHi( time(Null(Time_t*)) );
3697 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3698 to HZ. Probably. For now, assume that if the system
3699 defines HZ, it does so correctly. (Will this break
3701 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3702 it's supported. --AD 9/96.
3718 DIE("times not implemented");
3723 (void)PerlProc_times(&PL_timesbuf);
3725 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
3726 /* struct tms, though same data */
3730 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_utime)/HZ)));
3731 if (GIMME == G_ARRAY) {
3732 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_stime)/HZ)));
3733 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cutime)/HZ)));
3734 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cstime)/HZ)));
3737 #endif /* HAS_TIMES */
3742 return pp_gmtime(ARGS);
3750 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3751 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3752 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3758 when = (Time_t)SvNVx(POPs);
3760 when = (Time_t)SvIVx(POPs);
3763 if (PL_op->op_type == OP_LOCALTIME)
3764 tmbuf = localtime(&when);
3766 tmbuf = gmtime(&when);
3770 if (GIMME != G_ARRAY) {
3775 tsv = newSVpvf("%s %s %2d %02d:%02d:%02d %d",
3776 dayname[tmbuf->tm_wday],
3777 monname[tmbuf->tm_mon],
3782 tmbuf->tm_year + 1900);
3783 PUSHs(sv_2mortal(tsv));
3786 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3787 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3788 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3789 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3790 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3791 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3792 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3793 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3794 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3805 anum = alarm((unsigned int)anum);
3812 DIE(PL_no_func, "Unsupported function alarm");
3823 (void)time(&lasttime);
3828 PerlProc_sleep((unsigned int)duration);
3831 XPUSHi(when - lasttime);
3835 /* Shared memory. */
3839 return pp_semget(ARGS);
3844 return pp_semctl(ARGS);
3849 return pp_shmwrite(ARGS);
3854 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3855 djSP; dMARK; dTARGET;
3856 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
3861 return pp_semget(ARGS);
3865 /* Message passing. */
3869 return pp_semget(ARGS);
3874 return pp_semctl(ARGS);
3879 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3880 djSP; dMARK; dTARGET;
3881 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3886 return pp_semget(ARGS);
3892 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3893 djSP; dMARK; dTARGET;
3894 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3899 return pp_semget(ARGS);
3907 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3908 djSP; dMARK; dTARGET;
3909 int anum = do_ipcget(PL_op->op_type, MARK, SP);
3916 DIE("System V IPC is not implemented on this machine");
3922 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3923 djSP; dMARK; dTARGET;
3924 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
3932 PUSHp(zero_but_true, ZBTLEN);
3936 return pp_semget(ARGS);
3942 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3943 djSP; dMARK; dTARGET;
3944 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3949 return pp_semget(ARGS);
3953 /* Get system info. */
3957 #ifdef HAS_GETHOSTBYNAME
3958 return pp_ghostent(ARGS);
3960 DIE(PL_no_sock_func, "gethostbyname");
3966 #ifdef HAS_GETHOSTBYADDR
3967 return pp_ghostent(ARGS);
3969 DIE(PL_no_sock_func, "gethostbyaddr");
3976 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
3977 I32 which = PL_op->op_type;
3978 register char **elem;
3980 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
3981 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
3982 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
3983 struct hostent *PerlSock_gethostent(void);
3985 struct hostent *hent;
3990 if (which == OP_GHBYNAME)
3991 #ifdef HAS_GETHOSTBYNAME
3992 hent = PerlSock_gethostbyname(POPpx);
3994 DIE(PL_no_sock_func, "gethostbyname");
3996 else if (which == OP_GHBYADDR) {
3997 #ifdef HAS_GETHOSTBYADDR
3998 int addrtype = POPi;
4001 Netdb_host_t addr = (Netdb_host_t) SvPV(addrsv, addrlen);
4003 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4005 DIE(PL_no_sock_func, "gethostbyaddr");
4009 #ifdef HAS_GETHOSTENT
4010 hent = PerlSock_gethostent();
4012 DIE(PL_no_sock_func, "gethostent");
4015 #ifdef HOST_NOT_FOUND
4017 STATUS_NATIVE_SET(h_errno);
4020 if (GIMME != G_ARRAY) {
4021 PUSHs(sv = sv_newmortal());
4023 if (which == OP_GHBYNAME) {
4025 sv_setpvn(sv, hent->h_addr, hent->h_length);
4028 sv_setpv(sv, (char*)hent->h_name);
4034 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4035 sv_setpv(sv, (char*)hent->h_name);
4036 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4037 for (elem = hent->h_aliases; elem && *elem; elem++) {
4038 sv_catpv(sv, *elem);
4040 sv_catpvn(sv, " ", 1);
4042 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4043 sv_setiv(sv, (IV)hent->h_addrtype);
4044 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4045 len = hent->h_length;
4046 sv_setiv(sv, (IV)len);
4048 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4049 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4050 sv_setpvn(sv, *elem, len);
4053 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4055 sv_setpvn(sv, hent->h_addr, len);
4060 DIE(PL_no_sock_func, "gethostent");
4066 #ifdef HAS_GETNETBYNAME
4067 return pp_gnetent(ARGS);
4069 DIE(PL_no_sock_func, "getnetbyname");
4075 #ifdef HAS_GETNETBYADDR
4076 return pp_gnetent(ARGS);
4078 DIE(PL_no_sock_func, "getnetbyaddr");
4085 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4086 I32 which = PL_op->op_type;
4087 register char **elem;
4089 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4090 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4091 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4092 struct netent *PerlSock_getnetent(void);
4094 struct netent *nent;
4097 if (which == OP_GNBYNAME)
4098 #ifdef HAS_GETNETBYNAME
4099 nent = PerlSock_getnetbyname(POPpx);
4101 DIE(PL_no_sock_func, "getnetbyname");
4103 else if (which == OP_GNBYADDR) {
4104 #ifdef HAS_GETNETBYADDR
4105 int addrtype = POPi;
4106 Netdb_net_t addr = (Netdb_net_t) U_L(POPn);
4107 nent = PerlSock_getnetbyaddr(addr, addrtype);
4109 DIE(PL_no_sock_func, "getnetbyaddr");
4113 #ifdef HAS_GETNETENT
4114 nent = PerlSock_getnetent();
4116 DIE(PL_no_sock_func, "getnetent");
4120 if (GIMME != G_ARRAY) {
4121 PUSHs(sv = sv_newmortal());
4123 if (which == OP_GNBYNAME)
4124 sv_setiv(sv, (IV)nent->n_net);
4126 sv_setpv(sv, nent->n_name);
4132 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4133 sv_setpv(sv, nent->n_name);
4134 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4135 for (elem = nent->n_aliases; elem && *elem; elem++) {
4136 sv_catpv(sv, *elem);
4138 sv_catpvn(sv, " ", 1);
4140 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4141 sv_setiv(sv, (IV)nent->n_addrtype);
4142 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4143 sv_setiv(sv, (IV)nent->n_net);
4148 DIE(PL_no_sock_func, "getnetent");
4154 #ifdef HAS_GETPROTOBYNAME
4155 return pp_gprotoent(ARGS);
4157 DIE(PL_no_sock_func, "getprotobyname");
4163 #ifdef HAS_GETPROTOBYNUMBER
4164 return pp_gprotoent(ARGS);
4166 DIE(PL_no_sock_func, "getprotobynumber");
4173 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4174 I32 which = PL_op->op_type;
4175 register char **elem;
4177 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4178 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4179 struct protoent *PerlSock_getprotobynumber(int);
4180 struct protoent *PerlSock_getprotoent(void);
4182 struct protoent *pent;
4185 if (which == OP_GPBYNAME)
4186 #ifdef HAS_GETPROTOBYNAME
4187 pent = PerlSock_getprotobyname(POPpx);
4189 DIE(PL_no_sock_func, "getprotobyname");
4191 else if (which == OP_GPBYNUMBER)
4192 #ifdef HAS_GETPROTOBYNUMBER
4193 pent = PerlSock_getprotobynumber(POPi);
4195 DIE(PL_no_sock_func, "getprotobynumber");
4198 #ifdef HAS_GETPROTOENT
4199 pent = PerlSock_getprotoent();
4201 DIE(PL_no_sock_func, "getprotoent");
4205 if (GIMME != G_ARRAY) {
4206 PUSHs(sv = sv_newmortal());
4208 if (which == OP_GPBYNAME)
4209 sv_setiv(sv, (IV)pent->p_proto);
4211 sv_setpv(sv, pent->p_name);
4217 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4218 sv_setpv(sv, pent->p_name);
4219 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4220 for (elem = pent->p_aliases; elem && *elem; elem++) {
4221 sv_catpv(sv, *elem);
4223 sv_catpvn(sv, " ", 1);
4225 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4226 sv_setiv(sv, (IV)pent->p_proto);
4231 DIE(PL_no_sock_func, "getprotoent");
4237 #ifdef HAS_GETSERVBYNAME
4238 return pp_gservent(ARGS);
4240 DIE(PL_no_sock_func, "getservbyname");
4246 #ifdef HAS_GETSERVBYPORT
4247 return pp_gservent(ARGS);
4249 DIE(PL_no_sock_func, "getservbyport");
4256 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4257 I32 which = PL_op->op_type;
4258 register char **elem;
4260 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4261 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4262 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4263 struct servent *PerlSock_getservent(void);
4265 struct servent *sent;
4268 if (which == OP_GSBYNAME) {
4269 #ifdef HAS_GETSERVBYNAME
4270 char *proto = POPpx;
4273 if (proto && !*proto)
4276 sent = PerlSock_getservbyname(name, proto);
4278 DIE(PL_no_sock_func, "getservbyname");
4281 else if (which == OP_GSBYPORT) {
4282 #ifdef HAS_GETSERVBYPORT
4283 char *proto = POPpx;
4284 unsigned short port = POPu;
4287 port = PerlSock_htons(port);
4289 sent = PerlSock_getservbyport(port, proto);
4291 DIE(PL_no_sock_func, "getservbyport");
4295 #ifdef HAS_GETSERVENT
4296 sent = PerlSock_getservent();
4298 DIE(PL_no_sock_func, "getservent");
4302 if (GIMME != G_ARRAY) {
4303 PUSHs(sv = sv_newmortal());
4305 if (which == OP_GSBYNAME) {
4307 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4309 sv_setiv(sv, (IV)(sent->s_port));
4313 sv_setpv(sv, sent->s_name);
4319 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4320 sv_setpv(sv, sent->s_name);
4321 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4322 for (elem = sent->s_aliases; elem && *elem; elem++) {
4323 sv_catpv(sv, *elem);
4325 sv_catpvn(sv, " ", 1);
4327 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4329 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4331 sv_setiv(sv, (IV)(sent->s_port));
4333 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4334 sv_setpv(sv, sent->s_proto);
4339 DIE(PL_no_sock_func, "getservent");
4346 #ifdef HAS_SETHOSTENT
4347 PerlSock_sethostent(TOPi);
4350 DIE(PL_no_sock_func, "sethostent");
4357 #ifdef HAS_SETNETENT
4358 PerlSock_setnetent(TOPi);
4361 DIE(PL_no_sock_func, "setnetent");
4368 #ifdef HAS_SETPROTOENT
4369 PerlSock_setprotoent(TOPi);
4372 DIE(PL_no_sock_func, "setprotoent");
4379 #ifdef HAS_SETSERVENT
4380 PerlSock_setservent(TOPi);
4383 DIE(PL_no_sock_func, "setservent");
4390 #ifdef HAS_ENDHOSTENT
4391 PerlSock_endhostent();
4395 DIE(PL_no_sock_func, "endhostent");
4402 #ifdef HAS_ENDNETENT
4403 PerlSock_endnetent();
4407 DIE(PL_no_sock_func, "endnetent");
4414 #ifdef HAS_ENDPROTOENT
4415 PerlSock_endprotoent();
4419 DIE(PL_no_sock_func, "endprotoent");
4426 #ifdef HAS_ENDSERVENT
4427 PerlSock_endservent();
4431 DIE(PL_no_sock_func, "endservent");
4438 return pp_gpwent(ARGS);
4440 DIE(PL_no_func, "getpwnam");
4447 return pp_gpwent(ARGS);
4449 DIE(PL_no_func, "getpwuid");
4456 #if defined(HAS_PASSWD) && defined(HAS_GETPWENT)
4457 I32 which = PL_op->op_type;
4459 struct passwd *pwent;
4462 if (which == OP_GPWNAM)
4463 pwent = getpwnam(POPpx);
4464 else if (which == OP_GPWUID)
4465 pwent = getpwuid(POPi);
4467 pwent = (struct passwd *)getpwent();
4470 if (GIMME != G_ARRAY) {
4471 PUSHs(sv = sv_newmortal());
4473 if (which == OP_GPWNAM)
4474 sv_setiv(sv, (IV)pwent->pw_uid);
4476 sv_setpv(sv, pwent->pw_name);
4482 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4483 sv_setpv(sv, pwent->pw_name);
4485 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4487 sv_setpv(sv, pwent->pw_passwd);
4490 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4491 sv_setiv(sv, (IV)pwent->pw_uid);
4493 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4494 sv_setiv(sv, (IV)pwent->pw_gid);
4496 /* pw_change, pw_quota, and pw_age are mutually exclusive. */
4497 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4499 sv_setiv(sv, (IV)pwent->pw_change);
4502 sv_setiv(sv, (IV)pwent->pw_quota);
4505 sv_setpv(sv, pwent->pw_age);
4510 /* pw_class and pw_comment are mutually exclusive. */
4511 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4513 sv_setpv(sv, pwent->pw_class);
4516 sv_setpv(sv, pwent->pw_comment);
4520 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4522 sv_setpv(sv, pwent->pw_gecos);
4524 #ifndef INCOMPLETE_TAINTS
4525 /* pw_gecos is tainted because user himself can diddle with it. */
4529 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4530 sv_setpv(sv, pwent->pw_dir);
4532 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4533 sv_setpv(sv, pwent->pw_shell);
4536 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4537 sv_setiv(sv, (IV)pwent->pw_expire);
4542 DIE(PL_no_func, "getpwent");
4549 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT) && !defined(CYGWIN32)
4553 DIE(PL_no_func, "setpwent");
4560 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
4564 DIE(PL_no_func, "endpwent");
4571 return pp_ggrent(ARGS);
4573 DIE(PL_no_func, "getgrnam");
4580 return pp_ggrent(ARGS);
4582 DIE(PL_no_func, "getgrgid");
4589 #if defined(HAS_GROUP) && defined(HAS_GETGRENT)
4590 I32 which = PL_op->op_type;
4591 register char **elem;
4593 struct group *grent;
4596 if (which == OP_GGRNAM)
4597 grent = (struct group *)getgrnam(POPpx);
4598 else if (which == OP_GGRGID)
4599 grent = (struct group *)getgrgid(POPi);
4601 grent = (struct group *)getgrent();
4604 if (GIMME != G_ARRAY) {
4605 PUSHs(sv = sv_newmortal());
4607 if (which == OP_GGRNAM)
4608 sv_setiv(sv, (IV)grent->gr_gid);
4610 sv_setpv(sv, grent->gr_name);
4616 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4617 sv_setpv(sv, grent->gr_name);
4619 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4621 sv_setpv(sv, grent->gr_passwd);
4624 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4625 sv_setiv(sv, (IV)grent->gr_gid);
4627 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4628 for (elem = grent->gr_mem; elem && *elem; elem++) {
4629 sv_catpv(sv, *elem);
4631 sv_catpvn(sv, " ", 1);
4637 DIE(PL_no_func, "getgrent");
4644 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
4648 DIE(PL_no_func, "setgrent");
4655 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
4659 DIE(PL_no_func, "endgrent");
4669 if (!(tmps = PerlProc_getlogin()))
4671 PUSHp(tmps, strlen(tmps));
4674 DIE(PL_no_func, "getlogin");
4678 /* Miscellaneous. */
4683 djSP; dMARK; dORIGMARK; dTARGET;
4684 register I32 items = SP - MARK;
4685 unsigned long a[20];
4692 while (++MARK <= SP) {
4693 if (SvTAINTED(*MARK)) {
4699 TAINT_PROPER("syscall");
4702 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4703 * or where sizeof(long) != sizeof(char*). But such machines will
4704 * not likely have syscall implemented either, so who cares?
4706 while (++MARK <= SP) {
4707 if (SvNIOK(*MARK) || !i)
4708 a[i++] = SvIV(*MARK);
4709 else if (*MARK == &PL_sv_undef)
4712 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
4718 DIE("Too many args to syscall");
4720 DIE("Too few args to syscall");
4722 retval = syscall(a[0]);
4725 retval = syscall(a[0],a[1]);
4728 retval = syscall(a[0],a[1],a[2]);
4731 retval = syscall(a[0],a[1],a[2],a[3]);
4734 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4737 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4740 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4743 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4747 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4750 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4753 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4757 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4761 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4765 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4766 a[10],a[11],a[12],a[13]);
4768 #endif /* atarist */
4774 DIE(PL_no_func, "syscall");
4778 #ifdef FCNTL_EMULATE_FLOCK
4780 /* XXX Emulate flock() with fcntl().
4781 What's really needed is a good file locking module.
4785 fcntl_emulate_flock(int fd, int operation)
4789 switch (operation & ~LOCK_NB) {
4791 flock.l_type = F_RDLCK;
4794 flock.l_type = F_WRLCK;
4797 flock.l_type = F_UNLCK;
4803 flock.l_whence = SEEK_SET;
4804 flock.l_start = flock.l_len = 0L;
4806 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4809 #endif /* FCNTL_EMULATE_FLOCK */
4811 #ifdef LOCKF_EMULATE_FLOCK
4813 /* XXX Emulate flock() with lockf(). This is just to increase
4814 portability of scripts. The calls are not completely
4815 interchangeable. What's really needed is a good file
4819 /* The lockf() constants might have been defined in <unistd.h>.
4820 Unfortunately, <unistd.h> causes troubles on some mixed
4821 (BSD/POSIX) systems, such as SunOS 4.1.3.
4823 Further, the lockf() constants aren't POSIX, so they might not be
4824 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4825 just stick in the SVID values and be done with it. Sigh.
4829 # define F_ULOCK 0 /* Unlock a previously locked region */
4832 # define F_LOCK 1 /* Lock a region for exclusive use */
4835 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4838 # define F_TEST 3 /* Test a region for other processes locks */
4842 lockf_emulate_flock (fd, operation)
4850 /* flock locks entire file so for lockf we need to do the same */
4852 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
4853 if (pos > 0) /* is seekable and needs to be repositioned */
4854 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
4855 pos = -1; /* seek failed, so don't seek back afterwards */
4858 switch (operation) {
4860 /* LOCK_SH - get a shared lock */
4862 /* LOCK_EX - get an exclusive lock */
4864 i = lockf (fd, F_LOCK, 0);
4867 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4868 case LOCK_SH|LOCK_NB:
4869 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4870 case LOCK_EX|LOCK_NB:
4871 i = lockf (fd, F_TLOCK, 0);
4873 if ((errno == EAGAIN) || (errno == EACCES))
4874 errno = EWOULDBLOCK;
4877 /* LOCK_UN - unlock (non-blocking is a no-op) */
4879 case LOCK_UN|LOCK_NB:
4880 i = lockf (fd, F_ULOCK, 0);
4883 /* Default - can't decipher operation */
4890 if (pos > 0) /* need to restore position of the handle */
4891 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
4896 #endif /* LOCKF_EMULATE_FLOCK */