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;
510 #if 0 /* no undef means tmpfile() yet */
511 if (sv == &PL_sv_undef) {
513 PerlIO *fp = PerlIO_tmpfile();
515 PerlIO *fp = tmpfile();
517 if (fp != Nullfp && do_open(gv, "+>&", 3, FALSE, 0, 0, fp))
518 PUSHi( (I32)PL_forkprocess );
523 #endif /* no undef means tmpfile() yet */
525 tmps = SvPV(sv, len);
526 if (do_open(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp))
527 PUSHi( (I32)PL_forkprocess );
528 else if (PL_forkprocess == 0) /* we are a new child */
546 if (mg = SvTIED_mg((SV*)gv, 'q')) {
548 XPUSHs(SvTIED_obj((SV*)gv, mg));
551 perl_call_method("CLOSE", G_SCALAR);
557 PUSHs(boolSV(do_close(gv, TRUE)));
577 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
578 DIE(PL_no_usym, "filehandle");
583 do_close(rgv, FALSE);
585 do_close(wgv, FALSE);
587 if (PerlProc_pipe(fd) < 0)
590 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
591 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
592 IoIFP(wstio) = IoOFP(wstio);
596 if (!IoIFP(rstio) || !IoOFP(wstio)) {
597 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
598 else PerlLIO_close(fd[0]);
599 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
600 else PerlLIO_close(fd[1]);
603 #if defined(HAS_FCNTL) && defined(F_SETFD)
604 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
605 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
612 DIE(PL_no_func, "pipe");
625 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
627 PUSHi(PerlIO_fileno(fp));
638 anum = PerlLIO_umask(0);
639 (void)PerlLIO_umask(anum);
642 anum = PerlLIO_umask(POPi);
643 TAINT_PROPER("umask");
646 /* Only DIE if trying to restrict permissions on `user' (self).
647 * Otherwise it's harmless and more useful to just return undef
648 * since 'group' and 'other' concepts probably don't exist here. */
649 if (MAXARG >= 1 && (POPi & 0700))
650 DIE("umask not implemented");
651 XPUSHs(&PL_sv_undef);
669 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
672 if (do_binmode(fp,IoTYPE(io),TRUE))
687 I32 markoff = MARK - PL_stack_base;
694 switch(SvTYPE(varsv)) {
696 methname = "TIEHASH";
699 methname = "TIEARRAY";
702 methname = "TIEHANDLE";
706 methname = "TIESCALAR";
711 if (sv_isobject(*MARK)) {
713 PUSHSTACKi(PERLSI_MAGIC);
719 perl_call_method(methname, G_SCALAR);
722 /* Not clear why we don't call perl_call_method here too.
723 * perhaps to get different error message ?
725 stash = gv_stashsv(*MARK, FALSE);
726 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
727 DIE("Can't locate object method \"%s\" via package \"%s\"",
728 methname, SvPV(*MARK,n_a));
731 PUSHSTACKi(PERLSI_MAGIC);
737 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
743 if (sv_isobject(sv)) {
744 sv_unmagic(varsv, how);
745 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
748 SP = PL_stack_base + markoff;
757 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
759 if (ckWARN(WARN_UNTIE)) {
761 if (mg = SvTIED_mg(sv, how)) {
762 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
764 "untie attempted while %lu inner references still exist",
765 (unsigned long)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
777 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
780 if (mg = SvTIED_mg(sv, how)) {
781 SV *osv = SvTIED_obj(sv, mg);
782 if (osv == mg->mg_obj)
783 osv = sv_mortalcopy(osv);
801 sv = sv_mortalcopy(&PL_sv_no);
802 sv_setpv(sv, "AnyDBM_File");
803 stash = gv_stashsv(sv, FALSE);
804 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
806 perl_require_pv("AnyDBM_File.pm");
808 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
809 DIE("No dbm on this machine");
819 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
821 PUSHs(sv_2mortal(newSViv(O_RDWR)));
824 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
827 if (!sv_isobject(TOPs)) {
832 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
835 perl_call_sv((SV*)GvCV(gv), G_SCALAR);
839 if (sv_isobject(TOPs)) {
840 sv_unmagic((SV *) hv, 'P');
841 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
849 return pp_untie(ARGS);
863 struct timeval timebuf;
864 struct timeval *tbuf = &timebuf;
868 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
873 # if BYTEORDER & 0xf0000
874 # define ORDERBYTE (0x88888888 - BYTEORDER)
876 # define ORDERBYTE (0x4444 - BYTEORDER)
882 for (i = 1; i <= 3; i++) {
890 /* little endians can use vecs directly */
891 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
892 # if SELECT_MIN_BITS > 1
893 /* If SELECT_MIN_BITS is greater than one we most probably will want
894 * to align the sizes with SELECT_MIN_BITS/8 because for example
895 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
896 * UNIX, Solaris, NeXT, Rhapsody) the smallest quantum select() operates
897 * on (sets/tests/clears bits) is 32 bits. */
898 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
900 growsize = sizeof(fd_set);
909 masksize = NFDBITS / NBBY;
911 masksize = sizeof(long); /* documented int, everyone seems to use long */
913 growsize = maxlen + (masksize - (maxlen % masksize));
914 Zero(&fd_sets[0], 4, char*);
922 timebuf.tv_sec = (long)value;
923 value -= (double)timebuf.tv_sec;
924 timebuf.tv_usec = (long)(value * 1000000.0);
927 tbuf = Null(struct timeval*);
929 for (i = 1; i <= 3; i++) {
936 SvPV_force(sv,n_a); /* force string conversion */
939 Sv_Grow(sv, growsize);
943 while (++j <= growsize) {
947 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
949 New(403, fd_sets[i], growsize, char);
950 for (offset = 0; offset < growsize; offset += masksize) {
951 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
952 fd_sets[i][j+offset] = s[(k % masksize) + offset];
955 fd_sets[i] = SvPVX(sv);
959 nfound = PerlSock_select(
961 (Select_fd_set_t) fd_sets[1],
962 (Select_fd_set_t) fd_sets[2],
963 (Select_fd_set_t) fd_sets[3],
965 for (i = 1; i <= 3; i++) {
968 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
970 for (offset = 0; offset < growsize; offset += masksize) {
971 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
972 s[(k % masksize) + offset] = fd_sets[i][j+offset];
974 Safefree(fd_sets[i]);
981 if (GIMME == G_ARRAY && tbuf) {
982 value = (double)(timebuf.tv_sec) +
983 (double)(timebuf.tv_usec) / 1000000.0;
984 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
989 DIE("select not implemented");
998 (void)SvREFCNT_inc(gv);
1000 SvREFCNT_dec(PL_defoutgv);
1007 GV *newdefout, *egv;
1010 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1012 egv = GvEGV(PL_defoutgv);
1017 XPUSHs(&PL_sv_undef);
1019 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1020 if (gvp && *gvp == egv) {
1021 gv_efullname3(TARG, PL_defoutgv, Nullch);
1025 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1030 if (!GvIO(newdefout))
1031 gv_IOadd(newdefout);
1032 setdefout(newdefout);
1051 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1052 I32 gimme = GIMME_V;
1054 XPUSHs(SvTIED_obj((SV*)gv, mg));
1057 perl_call_method("GETC", gimme);
1060 if (gimme == G_SCALAR)
1061 SvSetMagicSV_nosteal(TARG, TOPs);
1064 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1067 sv_setpv(TARG, " ");
1068 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1075 return pp_sysread(ARGS);
1079 doform(CV *cv, GV *gv, OP *retop)
1082 register PERL_CONTEXT *cx;
1083 I32 gimme = GIMME_V;
1084 AV* padlist = CvPADLIST(cv);
1085 SV** svp = AvARRAY(padlist);
1091 PUSHBLOCK(cx, CXt_SUB, PL_stack_sp);
1093 SAVESPTR(PL_curpad);
1094 PL_curpad = AvARRAY((AV*)svp[1]);
1096 setdefout(gv); /* locally select filehandle so $% et al work */
1128 SV *tmpsv = sv_newmortal();
1129 gv_efullname3(tmpsv, fgv, Nullch);
1130 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
1132 DIE("Not a format reference");
1135 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1137 IoFLAGS(io) &= ~IOf_DIDTOP;
1138 return doform(cv,gv,PL_op->op_next);
1144 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1145 register IO *io = GvIOp(gv);
1146 PerlIO *ofp = IoOFP(io);
1150 register PERL_CONTEXT *cx;
1152 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1153 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1154 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1155 PL_formtarget != PL_toptarget)
1159 if (!IoTOP_GV(io)) {
1163 if (!IoTOP_NAME(io)) {
1164 if (!IoFMT_NAME(io))
1165 IoFMT_NAME(io) = savepv(GvNAME(gv));
1166 topname = sv_2mortal(newSVpvf("%s_TOP", IoFMT_NAME(io)));
1167 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1168 if ((topgv && GvFORM(topgv)) ||
1169 !gv_fetchpv("top",FALSE,SVt_PVFM))
1170 IoTOP_NAME(io) = savepv(SvPVX(topname));
1172 IoTOP_NAME(io) = savepv("top");
1174 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1175 if (!topgv || !GvFORM(topgv)) {
1176 IoLINES_LEFT(io) = 100000000;
1179 IoTOP_GV(io) = topgv;
1181 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1182 I32 lines = IoLINES_LEFT(io);
1183 char *s = SvPVX(PL_formtarget);
1184 if (lines <= 0) /* Yow, header didn't even fit!!! */
1186 while (lines-- > 0) {
1187 s = strchr(s, '\n');
1193 PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
1194 sv_chop(PL_formtarget, s);
1195 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1198 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1199 PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
1200 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1202 PL_formtarget = PL_toptarget;
1203 IoFLAGS(io) |= IOf_DIDTOP;
1206 DIE("bad top format reference");
1209 SV *tmpsv = sv_newmortal();
1210 gv_efullname3(tmpsv, fgv, Nullch);
1211 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
1214 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1215 return doform(cv,gv,PL_op);
1219 POPBLOCK(cx,PL_curpm);
1225 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1227 warner(WARN_IO, "Filehandle only opened for input");
1228 else if (ckWARN(WARN_CLOSED))
1229 warner(WARN_CLOSED, "Write on closed filehandle");
1234 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1235 if (ckWARN(WARN_IO))
1236 warner(WARN_IO, "page overflow");
1238 if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
1242 FmLINES(PL_formtarget) = 0;
1243 SvCUR_set(PL_formtarget, 0);
1244 *SvEND(PL_formtarget) = '\0';
1245 if (IoFLAGS(io) & IOf_FLUSH)
1246 (void)PerlIO_flush(fp);
1250 PL_formtarget = PL_bodytarget;
1252 return pop_return();
1257 djSP; dMARK; dORIGMARK;
1265 if (PL_op->op_flags & OPf_STACKED)
1270 if (mg = SvTIED_mg((SV*)gv, 'q')) {
1271 if (MARK == ORIGMARK) {
1274 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1278 *MARK = SvTIED_obj((SV*)gv, mg);
1281 perl_call_method("PRINTF", G_SCALAR);
1284 MARK = ORIGMARK + 1;
1291 if (!(io = GvIO(gv))) {
1292 if (ckWARN(WARN_UNOPENED)) {
1293 gv_fullname3(sv, gv, Nullch);
1294 warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,n_a));
1296 SETERRNO(EBADF,RMS$_IFI);
1299 else if (!(fp = IoOFP(io))) {
1300 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1301 gv_fullname3(sv, gv, Nullch);
1303 warner(WARN_IO, "Filehandle %s opened only for input",
1305 else if (ckWARN(WARN_CLOSED))
1306 warner(WARN_CLOSED, "printf on closed filehandle %s",
1309 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1313 #ifdef USE_LOCALE_NUMERIC
1314 if (PL_op->op_private & OPpLOCALE)
1315 SET_NUMERIC_LOCAL();
1317 SET_NUMERIC_STANDARD();
1319 do_sprintf(sv, SP - MARK, MARK + 1);
1320 if (!do_print(sv, fp))
1323 if (IoFLAGS(io) & IOf_FLUSH)
1324 if (PerlIO_flush(fp) == EOF)
1335 PUSHs(&PL_sv_undef);
1356 tmps = SvPV(sv, len);
1357 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1358 IoLINES(GvIOp(gv)) = 0;
1362 PUSHs(&PL_sv_undef);
1369 djSP; dMARK; dORIGMARK; dTARGET;
1375 Sock_size_t bufsize;
1381 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1382 (mg = SvTIED_mg((SV*)gv, 'q')))
1387 *MARK = SvTIED_obj((SV*)gv, mg);
1389 perl_call_method("READ", G_SCALAR);
1402 sv_setpvn(bufsv, "", 0);
1403 buffer = SvPV_force(bufsv, blen);
1404 length = SvIVx(*++MARK);
1406 DIE("Negative length");
1409 offset = SvIVx(*++MARK);
1413 if (!io || !IoIFP(io))
1416 if (PL_op->op_type == OP_RECV) {
1417 char namebuf[MAXPATHLEN];
1418 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1419 bufsize = sizeof (struct sockaddr_in);
1421 bufsize = sizeof namebuf;
1423 buffer = SvGROW(bufsv, length+1);
1424 /* 'offset' means 'flags' here */
1425 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1426 (struct sockaddr *)namebuf, &bufsize);
1429 SvCUR_set(bufsv, length);
1430 *SvEND(bufsv) = '\0';
1431 (void)SvPOK_only(bufsv);
1433 /* This should not be marked tainted if the fp is marked clean */
1434 if (!(IoFLAGS(io) & IOf_UNTAINT))
1435 SvTAINTED_on(bufsv);
1437 sv_setpvn(TARG, namebuf, bufsize);
1442 if (PL_op->op_type == OP_RECV)
1443 DIE(PL_no_sock_func, "recv");
1447 DIE("Offset outside string");
1450 bufsize = SvCUR(bufsv);
1451 buffer = SvGROW(bufsv, length+offset+1);
1452 if (offset > bufsize) { /* Zero any newly allocated space */
1453 Zero(buffer+bufsize, offset-bufsize, char);
1455 if (PL_op->op_type == OP_SYSREAD) {
1456 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1457 if (IoTYPE(io) == 's') {
1458 length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1459 buffer+offset, length, 0);
1464 length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1465 buffer+offset, length);
1469 #ifdef HAS_SOCKET__bad_code_maybe
1470 if (IoTYPE(io) == 's') {
1471 char namebuf[MAXPATHLEN];
1472 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1473 bufsize = sizeof (struct sockaddr_in);
1475 bufsize = sizeof namebuf;
1477 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1478 (struct sockaddr *)namebuf, &bufsize);
1483 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1484 /* fread() returns 0 on both error and EOF */
1485 if (length == 0 && PerlIO_error(IoIFP(io)))
1490 SvCUR_set(bufsv, length+offset);
1491 *SvEND(bufsv) = '\0';
1492 (void)SvPOK_only(bufsv);
1494 /* This should not be marked tainted if the fp is marked clean */
1495 if (!(IoFLAGS(io) & IOf_UNTAINT))
1496 SvTAINTED_on(bufsv);
1509 int items = (SP - PL_stack_base) - TOPMARK;
1513 sv = sv_2mortal(newSViv(sv_len(*SP)));
1517 return pp_send(ARGS);
1522 djSP; dMARK; dORIGMARK; dTARGET;
1533 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1537 *MARK = SvTIED_obj((SV*)gv, mg);
1539 perl_call_method("WRITE", G_SCALAR);
1550 buffer = SvPV(bufsv, blen);
1551 length = SvIVx(*++MARK);
1553 DIE("Negative length");
1556 if (!io || !IoIFP(io)) {
1558 if (ckWARN(WARN_CLOSED)) {
1559 if (PL_op->op_type == OP_SYSWRITE)
1560 warner(WARN_CLOSED, "Syswrite on closed filehandle");
1562 warner(WARN_CLOSED, "Send on closed socket");
1565 else if (PL_op->op_type == OP_SYSWRITE) {
1567 offset = SvIVx(*++MARK);
1570 DIE("Offset outside string");
1572 } else if (offset >= blen && blen > 0)
1573 DIE("Offset outside string");
1576 if (length > blen - offset)
1577 length = blen - offset;
1578 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1579 if (IoTYPE(io) == 's') {
1580 length = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1581 buffer+offset, length, 0);
1586 length = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1587 buffer+offset, length);
1591 else if (SP > MARK) {
1594 sockbuf = SvPVx(*++MARK, mlen);
1595 length = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1596 (struct sockaddr *)sockbuf, mlen);
1599 length = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1603 DIE(PL_no_sock_func, "send");
1618 return pp_sysread(ARGS);
1629 gv = PL_last_in_gv = (GV*)POPs;
1630 PUSHs(boolSV(!gv || do_eof(gv)));
1642 gv = PL_last_in_gv = (GV*)POPs;
1643 PUSHi( do_tell(gv) );
1649 return pp_sysseek(ARGS);
1657 Off_t offset = POPl;
1659 gv = PL_last_in_gv = (GV*)POPs;
1660 if (PL_op->op_type == OP_SEEK)
1661 PUSHs(boolSV(do_seek(gv, offset, whence)));
1663 Off_t n = do_sysseek(gv, offset, whence);
1664 PUSHs((n < 0) ? &PL_sv_undef
1665 : sv_2mortal(n ? newSViv((IV)n)
1666 : newSVpvn(zero_but_true, ZBTLEN)));
1674 Off_t len = (Off_t)POPn;
1680 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1681 if (PL_op->op_flags & OPf_SPECIAL) {
1682 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
1684 TAINT_PROPER("truncate");
1685 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1687 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1689 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1698 if (SvTYPE(sv) == SVt_PVGV) {
1699 tmpgv = (GV*)sv; /* *main::FRED for example */
1702 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1703 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1707 name = SvPV(sv, n_a);
1708 TAINT_PROPER("truncate");
1710 if (truncate(name, len) < 0)
1715 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
1718 if (my_chsize(tmpfd, len) < 0)
1720 PerlLIO_close(tmpfd);
1729 SETERRNO(EBADF,RMS$_IFI);
1732 DIE("truncate not implemented");
1738 return pp_ioctl(ARGS);
1745 unsigned int func = U_I(POPn);
1746 int optype = PL_op->op_type;
1752 if (!io || !argsv || !IoIFP(io)) {
1753 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1757 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1760 s = SvPV_force(argsv, len);
1761 need = IOCPARM_LEN(func);
1763 s = Sv_Grow(argsv, need + 1);
1764 SvCUR_set(argsv, need);
1767 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1770 retval = SvIV(argsv);
1771 s = (char*)retval; /* ouch */
1774 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1776 if (optype == OP_IOCTL)
1778 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1780 DIE("ioctl is not implemented");
1784 #if defined(OS2) && defined(__EMX__)
1785 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1787 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1790 DIE("fcntl is not implemented");
1794 if (s[SvCUR(argsv)] != 17)
1795 DIE("Possible memory corruption: %s overflowed 3rd argument",
1796 PL_op_name[optype]);
1797 s[SvCUR(argsv)] = 0; /* put our null back */
1798 SvSETMAGIC(argsv); /* Assume it has changed */
1807 PUSHp(zero_but_true, ZBTLEN);
1827 fp = IoIFP(GvIOp(gv));
1831 (void)PerlIO_flush(fp);
1832 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
1839 DIE(PL_no_func, "flock()");
1851 int protocol = POPi;
1859 SETERRNO(EBADF,LIB$_INVARG);
1865 do_close(gv, FALSE);
1867 TAINT_PROPER("socket");
1868 fd = PerlSock_socket(domain, type, protocol);
1871 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1872 IoOFP(io) = PerlIO_fdopen(fd, "w");
1874 if (!IoIFP(io) || !IoOFP(io)) {
1875 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1876 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1877 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
1883 DIE(PL_no_sock_func, "socket");
1890 #ifdef HAS_SOCKETPAIR
1895 int protocol = POPi;
1908 do_close(gv1, FALSE);
1910 do_close(gv2, FALSE);
1912 TAINT_PROPER("socketpair");
1913 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
1915 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1916 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1918 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1919 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1921 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1922 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1923 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1924 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
1925 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1926 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1927 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
1933 DIE(PL_no_sock_func, "socketpair");
1941 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
1942 extern GETPRIVMODE();
1943 extern GETUSERMODE();
1948 register IO *io = GvIOn(gv);
1952 int mpeprivmode = 0;
1955 if (!io || !IoIFP(io))
1958 addr = SvPV(addrsv, len);
1959 TAINT_PROPER("bind");
1960 #ifdef MPE /* Deal with MPE bind() peculiarities */
1961 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
1962 /* The address *MUST* stupidly be zero. */
1963 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
1964 /* PRIV mode is required to bind() to ports < 1024. */
1965 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
1966 ((struct sockaddr_in *)addr)->sin_port > 0) {
1967 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
1972 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
1973 (struct sockaddr *)addr, len) >= 0)
1976 #ifdef MPE /* Switch back to USER mode */
1987 if (ckWARN(WARN_CLOSED))
1988 warner(WARN_CLOSED, "bind() on closed fd");
1989 SETERRNO(EBADF,SS$_IVCHAN);
1992 DIE(PL_no_sock_func, "bind");
2003 register IO *io = GvIOn(gv);
2006 if (!io || !IoIFP(io))
2009 addr = SvPV(addrsv, len);
2010 TAINT_PROPER("connect");
2011 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2017 if (ckWARN(WARN_CLOSED))
2018 warner(WARN_CLOSED, "connect() on closed fd");
2019 SETERRNO(EBADF,SS$_IVCHAN);
2022 DIE(PL_no_sock_func, "connect");
2032 register IO *io = GvIOn(gv);
2034 if (!io || !IoIFP(io))
2037 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2043 if (ckWARN(WARN_CLOSED))
2044 warner(WARN_CLOSED, "listen() on closed fd");
2045 SETERRNO(EBADF,SS$_IVCHAN);
2048 DIE(PL_no_sock_func, "listen");
2060 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2061 Sock_size_t len = sizeof saddr;
2073 if (!gstio || !IoIFP(gstio))
2078 do_close(ngv, FALSE);
2080 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2083 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2084 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2085 IoTYPE(nstio) = 's';
2086 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2087 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2088 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2089 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2093 PUSHp((char *)&saddr, len);
2097 if (ckWARN(WARN_CLOSED))
2098 warner(WARN_CLOSED, "accept() on closed fd");
2099 SETERRNO(EBADF,SS$_IVCHAN);
2105 DIE(PL_no_sock_func, "accept");
2115 register IO *io = GvIOn(gv);
2117 if (!io || !IoIFP(io))
2120 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2124 if (ckWARN(WARN_CLOSED))
2125 warner(WARN_CLOSED, "shutdown() on closed fd");
2126 SETERRNO(EBADF,SS$_IVCHAN);
2129 DIE(PL_no_sock_func, "shutdown");
2136 return pp_ssockopt(ARGS);
2138 DIE(PL_no_sock_func, "getsockopt");
2146 int optype = PL_op->op_type;
2149 unsigned int optname;
2155 if (optype == OP_GSOCKOPT)
2156 sv = sv_2mortal(NEWSV(22, 257));
2159 optname = (unsigned int) POPi;
2160 lvl = (unsigned int) POPi;
2164 if (!io || !IoIFP(io))
2167 fd = PerlIO_fileno(IoIFP(io));
2171 (void)SvPOK_only(sv);
2175 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2190 aint = (int)SvIV(sv);
2194 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2203 if (ckWARN(WARN_CLOSED))
2204 warner(WARN_CLOSED, "[gs]etsockopt() on closed fd");
2205 SETERRNO(EBADF,SS$_IVCHAN);
2210 DIE(PL_no_sock_func, "setsockopt");
2217 return pp_getpeername(ARGS);
2219 DIE(PL_no_sock_func, "getsockname");
2227 int optype = PL_op->op_type;
2231 register IO *io = GvIOn(gv);
2234 if (!io || !IoIFP(io))
2237 sv = sv_2mortal(NEWSV(22, 257));
2238 (void)SvPOK_only(sv);
2242 fd = PerlIO_fileno(IoIFP(io));
2244 case OP_GETSOCKNAME:
2245 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2248 case OP_GETPEERNAME:
2249 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2251 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2253 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2254 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2255 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2256 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2257 sizeof(u_short) + sizeof(struct in_addr))) {
2264 #ifdef BOGUS_GETNAME_RETURN
2265 /* Interactive Unix, getpeername() and getsockname()
2266 does not return valid namelen */
2267 if (len == BOGUS_GETNAME_RETURN)
2268 len = sizeof(struct sockaddr);
2276 if (ckWARN(WARN_CLOSED))
2277 warner(WARN_CLOSED, "get{sock, peer}name() on closed fd");
2278 SETERRNO(EBADF,SS$_IVCHAN);
2283 DIE(PL_no_sock_func, "getpeername");
2291 return pp_stat(ARGS);
2302 if (PL_op->op_flags & OPf_REF) {
2303 tmpgv = cGVOP->op_gv;
2305 if (tmpgv != PL_defgv) {
2306 PL_laststype = OP_STAT;
2308 sv_setpv(PL_statname, "");
2309 PL_laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
2310 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &PL_statcache) : -1);
2312 if (PL_laststatval < 0)
2317 if (SvTYPE(sv) == SVt_PVGV) {
2321 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2322 tmpgv = (GV*)SvRV(sv);
2325 sv_setpv(PL_statname, SvPV(sv,n_a));
2328 PL_laststype = PL_op->op_type;
2329 if (PL_op->op_type == OP_LSTAT)
2330 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2333 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2334 if (PL_laststatval < 0) {
2335 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2336 warner(WARN_NEWLINE, PL_warn_nl, "stat");
2342 if (gimme != G_ARRAY) {
2343 if (gimme != G_VOID)
2344 XPUSHs(boolSV(max));
2350 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_dev)));
2351 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ino)));
2352 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mode)));
2353 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_nlink)));
2354 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_uid)));
2355 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_gid)));
2356 #ifdef USE_STAT_RDEV
2357 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_rdev)));
2359 PUSHs(sv_2mortal(newSVpvn("", 0)));
2361 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_size)));
2363 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_atime)));
2364 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_mtime)));
2365 PUSHs(sv_2mortal(newSVnv((U32)PL_statcache.st_ctime)));
2367 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_atime)));
2368 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_mtime)));
2369 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_ctime)));
2371 #ifdef USE_STAT_BLOCKS
2372 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blksize)));
2373 PUSHs(sv_2mortal(newSViv((I32)PL_statcache.st_blocks)));
2375 PUSHs(sv_2mortal(newSVpvn("", 0)));
2376 PUSHs(sv_2mortal(newSVpvn("", 0)));
2386 #if defined(HAS_ACCESS) && defined(R_OK)
2388 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2389 result = access(TOPpx, R_OK);
2397 result = my_stat(ARGS);
2399 result = my_stat(ARGS);
2404 if (cando(S_IRUSR, 0, &PL_statcache))
2413 #if defined(HAS_ACCESS) && defined(W_OK)
2415 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2416 result = access(TOPpx, W_OK);
2424 result = my_stat(ARGS);
2426 result = my_stat(ARGS);
2431 if (cando(S_IWUSR, 0, &PL_statcache))
2440 #if defined(HAS_ACCESS) && defined(X_OK)
2442 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2443 result = access(TOPpx, X_OK);
2451 result = my_stat(ARGS);
2453 result = my_stat(ARGS);
2458 if (cando(S_IXUSR, 0, &PL_statcache))
2467 #ifdef PERL_EFF_ACCESS_R_OK
2469 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2470 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2478 result = my_stat(ARGS);
2480 result = my_stat(ARGS);
2485 if (cando(S_IRUSR, 1, &PL_statcache))
2494 #ifdef PERL_EFF_ACCESS_W_OK
2496 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2497 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2505 result = my_stat(ARGS);
2507 result = my_stat(ARGS);
2512 if (cando(S_IWUSR, 1, &PL_statcache))
2521 #ifdef PERL_EFF_ACCESS_X_OK
2523 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2524 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2532 result = my_stat(ARGS);
2534 result = my_stat(ARGS);
2539 if (cando(S_IXUSR, 1, &PL_statcache))
2546 I32 result = my_stat(ARGS);
2555 return pp_ftrowned(ARGS);
2560 I32 result = my_stat(ARGS);
2564 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ? PL_euid : PL_uid) )
2571 I32 result = my_stat(ARGS);
2575 if (!PL_statcache.st_size)
2582 I32 result = my_stat(ARGS);
2586 PUSHi(PL_statcache.st_size);
2592 I32 result = my_stat(ARGS);
2596 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_mtime) / 86400.0 );
2602 I32 result = my_stat(ARGS);
2606 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_atime) / 86400.0 );
2612 I32 result = my_stat(ARGS);
2616 PUSHn( ((I32)PL_basetime - (I32)PL_statcache.st_ctime) / 86400.0 );
2622 I32 result = my_stat(ARGS);
2626 if (S_ISSOCK(PL_statcache.st_mode))
2633 I32 result = my_stat(ARGS);
2637 if (S_ISCHR(PL_statcache.st_mode))
2644 I32 result = my_stat(ARGS);
2648 if (S_ISBLK(PL_statcache.st_mode))
2655 I32 result = my_stat(ARGS);
2659 if (S_ISREG(PL_statcache.st_mode))
2666 I32 result = my_stat(ARGS);
2670 if (S_ISDIR(PL_statcache.st_mode))
2677 I32 result = my_stat(ARGS);
2681 if (S_ISFIFO(PL_statcache.st_mode))
2688 I32 result = my_lstat(ARGS);
2692 if (S_ISLNK(PL_statcache.st_mode))
2701 I32 result = my_stat(ARGS);
2705 if (PL_statcache.st_mode & S_ISUID)
2715 I32 result = my_stat(ARGS);
2719 if (PL_statcache.st_mode & S_ISGID)
2729 I32 result = my_stat(ARGS);
2733 if (PL_statcache.st_mode & S_ISVTX)
2744 char *tmps = Nullch;
2747 if (PL_op->op_flags & OPf_REF)
2749 else if (isGV(TOPs))
2751 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2752 gv = (GV*)SvRV(POPs);
2754 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
2756 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2757 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2758 else if (tmps && isDIGIT(*tmps))
2762 if (PerlLIO_isatty(fd))
2767 #if defined(atarist) /* this will work with atariST. Configure will
2768 make guesses for other systems. */
2769 # define FILE_base(f) ((f)->_base)
2770 # define FILE_ptr(f) ((f)->_ptr)
2771 # define FILE_cnt(f) ((f)->_cnt)
2772 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2782 register STDCHAR *s;
2788 if (PL_op->op_flags & OPf_REF)
2790 else if (isGV(TOPs))
2792 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2793 gv = (GV*)SvRV(POPs);
2799 if (gv == PL_defgv) {
2801 io = GvIO(PL_statgv);
2804 goto really_filename;
2809 PL_laststatval = -1;
2810 sv_setpv(PL_statname, "");
2811 io = GvIO(PL_statgv);
2813 if (io && IoIFP(io)) {
2814 if (! PerlIO_has_base(IoIFP(io)))
2815 DIE("-T and -B not implemented on filehandles");
2816 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2817 if (PL_laststatval < 0)
2819 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
2820 if (PL_op->op_type == OP_FTTEXT)
2824 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2825 i = PerlIO_getc(IoIFP(io));
2827 (void)PerlIO_ungetc(IoIFP(io),i);
2829 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2831 len = PerlIO_get_bufsiz(IoIFP(io));
2832 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2833 /* sfio can have large buffers - limit to 512 */
2838 if (ckWARN(WARN_UNOPENED))
2839 warner(WARN_UNOPENED, "Test on unopened file <%s>",
2840 GvENAME(cGVOP->op_gv));
2841 SETERRNO(EBADF,RMS$_IFI);
2849 PL_laststatval = -1;
2850 sv_setpv(PL_statname, SvPV(sv, n_a));
2852 i = PerlLIO_open3(SvPV(sv, n_a), O_RDONLY, 0);
2854 i = PerlLIO_open(SvPV(sv, n_a), 0);
2857 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
2858 warner(WARN_NEWLINE, PL_warn_nl, "open");
2861 PL_laststatval = PerlLIO_fstat(i, &PL_statcache);
2862 if (PL_laststatval < 0)
2864 len = PerlLIO_read(i, tbuf, 512);
2865 (void)PerlLIO_close(i);
2867 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
2868 RETPUSHNO; /* special case NFS directories */
2869 RETPUSHYES; /* null file is anything */
2874 /* now scan s to look for textiness */
2875 /* XXX ASCII dependent code */
2877 for (i = 0; i < len; i++, s++) {
2878 if (!*s) { /* null never allowed in text */
2883 else if (!(isPRINT(*s) || isSPACE(*s)))
2889 *s != '\n' && *s != '\r' && *s != '\b' &&
2890 *s != '\t' && *s != '\f' && *s != 27)
2895 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2903 return pp_fttext(ARGS);
2919 if (!tmps || !*tmps) {
2920 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
2922 tmps = SvPV(*svp, n_a);
2924 if (!tmps || !*tmps) {
2925 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
2927 tmps = SvPV(*svp, n_a);
2930 if (!tmps || !*tmps) {
2931 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
2933 tmps = SvPV(*svp, n_a);
2936 TAINT_PROPER("chdir");
2937 PUSHi( PerlDir_chdir(tmps) >= 0 );
2939 /* Clear the DEFAULT element of ENV so we'll get the new value
2941 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
2948 djSP; dMARK; dTARGET;
2951 value = (I32)apply(PL_op->op_type, MARK, SP);
2956 DIE(PL_no_func, "Unsupported function chown");
2967 TAINT_PROPER("chroot");
2968 PUSHi( chroot(tmps) >= 0 );
2971 DIE(PL_no_func, "chroot");
2977 djSP; dMARK; dTARGET;
2979 value = (I32)apply(PL_op->op_type, MARK, SP);
2987 djSP; dMARK; dTARGET;
2989 value = (I32)apply(PL_op->op_type, MARK, SP);
2997 djSP; dMARK; dTARGET;
2999 value = (I32)apply(PL_op->op_type, MARK, SP);
3011 char *tmps2 = POPpx;
3012 char *tmps = SvPV(TOPs, n_a);
3013 TAINT_PROPER("rename");
3015 anum = PerlLIO_rename(tmps, tmps2);
3017 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3018 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3021 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3022 (void)UNLINK(tmps2);
3023 if (!(anum = link(tmps, tmps2)))
3024 anum = UNLINK(tmps);
3037 char *tmps2 = POPpx;
3038 char *tmps = SvPV(TOPs, n_a);
3039 TAINT_PROPER("link");
3040 SETi( link(tmps, tmps2) >= 0 );
3042 DIE(PL_no_func, "Unsupported function link");
3052 char *tmps2 = POPpx;
3053 char *tmps = SvPV(TOPs, n_a);
3054 TAINT_PROPER("symlink");
3055 SETi( symlink(tmps, tmps2) >= 0 );
3058 DIE(PL_no_func, "symlink");
3067 char buf[MAXPATHLEN];
3071 #ifndef INCOMPLETE_TAINTS
3075 len = readlink(tmps, buf, sizeof buf);
3083 RETSETUNDEF; /* just pretend it's a normal file */
3087 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3089 dooneliner(cmd, filename)
3093 char *save_filename = filename;
3099 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3100 strcpy(cmdline, cmd);
3101 strcat(cmdline, " ");
3102 for (s = cmdline + strlen(cmdline); *filename; ) {
3107 myfp = PerlProc_popen(cmdline, "r");
3111 SV *tmpsv = sv_newmortal();
3112 /* Need to save/restore 'PL_rs' ?? */
3113 s = sv_gets(tmpsv, myfp, 0);
3114 (void)PerlProc_pclose(myfp);
3118 #ifdef HAS_SYS_ERRLIST
3123 /* you don't see this */
3125 #ifdef HAS_SYS_ERRLIST
3133 if (instr(s, errmsg)) {
3140 #define EACCES EPERM
3142 if (instr(s, "cannot make"))
3143 SETERRNO(EEXIST,RMS$_FEX);
3144 else if (instr(s, "existing file"))
3145 SETERRNO(EEXIST,RMS$_FEX);
3146 else if (instr(s, "ile exists"))
3147 SETERRNO(EEXIST,RMS$_FEX);
3148 else if (instr(s, "non-exist"))
3149 SETERRNO(ENOENT,RMS$_FNF);
3150 else if (instr(s, "does not exist"))
3151 SETERRNO(ENOENT,RMS$_FNF);
3152 else if (instr(s, "not empty"))
3153 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3154 else if (instr(s, "cannot access"))
3155 SETERRNO(EACCES,RMS$_PRV);
3157 SETERRNO(EPERM,RMS$_PRV);
3160 else { /* some mkdirs return no failure indication */
3161 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3162 if (PL_op->op_type == OP_RMDIR)
3167 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3184 char *tmps = SvPV(TOPs, n_a);
3186 TAINT_PROPER("mkdir");
3188 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3190 SETi( dooneliner("mkdir", tmps) );
3191 oldumask = PerlLIO_umask(0);
3192 PerlLIO_umask(oldumask);
3193 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3205 TAINT_PROPER("rmdir");
3207 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3209 XPUSHi( dooneliner("rmdir", tmps) );
3214 /* Directory calls. */
3219 #if defined(Direntry_t) && defined(HAS_READDIR)
3221 char *dirname = POPpx;
3223 register IO *io = GvIOn(gv);
3229 PerlDir_close(IoDIRP(io));
3230 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3236 SETERRNO(EBADF,RMS$_DIR);
3239 DIE(PL_no_dir_func, "opendir");
3246 #if defined(Direntry_t) && defined(HAS_READDIR)
3248 Direntry_t *readdir _((DIR *));
3250 register Direntry_t *dp;
3252 register IO *io = GvIOn(gv);
3255 if (!io || !IoDIRP(io))
3258 if (GIMME == G_ARRAY) {
3260 while (dp = (Direntry_t *)PerlDir_read(IoDIRP(io))) {
3262 sv = newSVpvn(dp->d_name, dp->d_namlen);
3264 sv = newSVpv(dp->d_name, 0);
3266 #ifndef INCOMPLETE_TAINTS
3269 XPUSHs(sv_2mortal(sv));
3273 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3276 sv = newSVpvn(dp->d_name, dp->d_namlen);
3278 sv = newSVpv(dp->d_name, 0);
3280 #ifndef INCOMPLETE_TAINTS
3283 XPUSHs(sv_2mortal(sv));
3289 SETERRNO(EBADF,RMS$_ISI);
3290 if (GIMME == G_ARRAY)
3295 DIE(PL_no_dir_func, "readdir");
3302 #if defined(HAS_TELLDIR) || defined(telldir)
3303 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3304 /* XXX netbsd still seemed to.
3305 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3306 --JHI 1999-Feb-02 */
3307 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3308 long telldir _((DIR *));
3311 register IO *io = GvIOn(gv);
3313 if (!io || !IoDIRP(io))
3316 PUSHi( PerlDir_tell(IoDIRP(io)) );
3320 SETERRNO(EBADF,RMS$_ISI);
3323 DIE(PL_no_dir_func, "telldir");
3330 #if defined(HAS_SEEKDIR) || defined(seekdir)
3333 register IO *io = GvIOn(gv);
3335 if (!io || !IoDIRP(io))
3338 (void)PerlDir_seek(IoDIRP(io), along);
3343 SETERRNO(EBADF,RMS$_ISI);
3346 DIE(PL_no_dir_func, "seekdir");
3353 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3355 register IO *io = GvIOn(gv);
3357 if (!io || !IoDIRP(io))
3360 (void)PerlDir_rewind(IoDIRP(io));
3364 SETERRNO(EBADF,RMS$_ISI);
3367 DIE(PL_no_dir_func, "rewinddir");
3374 #if defined(Direntry_t) && defined(HAS_READDIR)
3376 register IO *io = GvIOn(gv);
3378 if (!io || !IoDIRP(io))
3381 #ifdef VOID_CLOSEDIR
3382 PerlDir_close(IoDIRP(io));
3384 if (PerlDir_close(IoDIRP(io)) < 0) {
3385 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3394 SETERRNO(EBADF,RMS$_IFI);
3397 DIE(PL_no_dir_func, "closedir");
3401 /* Process control. */
3416 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
3417 sv_setiv(GvSV(tmpgv), (IV)getpid());
3418 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3423 DIE(PL_no_func, "Unsupported function fork");
3429 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3434 childpid = wait4pid(-1, &argflags, 0);
3435 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3439 DIE(PL_no_func, "Unsupported function wait");
3445 #if !defined(DOSISH) || defined(OS2) || defined(WIN32)
3453 childpid = wait4pid(childpid, &argflags, optype);
3454 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3458 DIE(PL_no_func, "Unsupported function waitpid");
3464 djSP; dMARK; dORIGMARK; dTARGET;
3469 Sigsave_t ihand,qhand; /* place to save signals during system() */
3472 if (SP - MARK == 1) {
3474 char *junk = SvPV(TOPs, n_a);
3476 TAINT_PROPER("system");
3479 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
3480 while ((childpid = vfork()) == -1) {
3481 if (errno != EAGAIN) {
3490 rsignal_save(SIGINT, SIG_IGN, &ihand);
3491 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
3493 result = wait4pid(childpid, &status, 0);
3494 } while (result == -1 && errno == EINTR);
3495 (void)rsignal_restore(SIGINT, &ihand);
3496 (void)rsignal_restore(SIGQUIT, &qhand);
3497 STATUS_NATIVE_SET(result == -1 ? -1 : status);
3498 do_execfree(); /* free any memory child malloced on vfork */
3500 PUSHi(STATUS_CURRENT);
3503 if (PL_op->op_flags & OPf_STACKED) {
3504 SV *really = *++MARK;
3505 value = (I32)do_aexec(really, MARK, SP);
3507 else if (SP - MARK != 1)
3508 value = (I32)do_aexec(Nullsv, MARK, SP);
3510 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3513 #else /* ! FORK or VMS or OS/2 */
3514 if (PL_op->op_flags & OPf_STACKED) {
3515 SV *really = *++MARK;
3516 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
3518 else if (SP - MARK != 1)
3519 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
3521 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3523 STATUS_NATIVE_SET(value);
3526 PUSHi(STATUS_CURRENT);
3527 #endif /* !FORK or VMS */
3533 djSP; dMARK; dORIGMARK; dTARGET;
3537 if (PL_op->op_flags & OPf_STACKED) {
3538 SV *really = *++MARK;
3539 value = (I32)do_aexec(really, MARK, SP);
3541 else if (SP - MARK != 1)
3543 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3547 (void ) do_aspawn(Nullsv, MARK, SP);
3551 value = (I32)do_aexec(Nullsv, MARK, SP);
3556 char *junk = SvPV(*SP, n_a);
3558 TAINT_PROPER("exec");
3561 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3564 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3567 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3578 djSP; dMARK; dTARGET;
3581 value = (I32)apply(PL_op->op_type, MARK, SP);
3586 DIE(PL_no_func, "Unsupported function kill");
3594 XPUSHi( getppid() );
3597 DIE(PL_no_func, "getppid");
3613 value = (I32)BSD_GETPGRP(pid);
3615 if (pid != 0 && pid != getpid())
3616 DIE("POSIX getpgrp can't take an argument");
3617 value = (I32)getpgrp();
3622 DIE(PL_no_func, "getpgrp()");
3641 TAINT_PROPER("setpgrp");
3643 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3645 if ((pgrp != 0 && pgrp != getpid()) || (pid != 0 && pid != getpid()))
3646 DIE("POSIX setpgrp can't take an argument");
3647 SETi( setpgrp() >= 0 );
3648 #endif /* USE_BSDPGRP */
3651 DIE(PL_no_func, "setpgrp()");
3660 #ifdef HAS_GETPRIORITY
3663 SETi( getpriority(which, who) );
3666 DIE(PL_no_func, "getpriority()");
3676 #ifdef HAS_SETPRIORITY
3680 TAINT_PROPER("setpriority");
3681 SETi( setpriority(which, who, niceval) >= 0 );
3684 DIE(PL_no_func, "setpriority()");
3694 XPUSHn( time(Null(Time_t*)) );
3696 XPUSHi( time(Null(Time_t*)) );
3701 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3702 to HZ. Probably. For now, assume that if the system
3703 defines HZ, it does so correctly. (Will this break
3705 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3706 it's supported. --AD 9/96.
3722 DIE("times not implemented");
3727 (void)PerlProc_times(&PL_timesbuf);
3729 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
3730 /* struct tms, though same data */
3734 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_utime)/HZ)));
3735 if (GIMME == G_ARRAY) {
3736 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_stime)/HZ)));
3737 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cutime)/HZ)));
3738 PUSHs(sv_2mortal(newSVnv(((double)PL_timesbuf.tms_cstime)/HZ)));
3741 #endif /* HAS_TIMES */
3746 return pp_gmtime(ARGS);
3754 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3755 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3756 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3762 when = (Time_t)SvNVx(POPs);
3764 when = (Time_t)SvIVx(POPs);
3767 if (PL_op->op_type == OP_LOCALTIME)
3768 tmbuf = localtime(&when);
3770 tmbuf = gmtime(&when);
3774 if (GIMME != G_ARRAY) {
3779 tsv = newSVpvf("%s %s %2d %02d:%02d:%02d %d",
3780 dayname[tmbuf->tm_wday],
3781 monname[tmbuf->tm_mon],
3786 tmbuf->tm_year + 1900);
3787 PUSHs(sv_2mortal(tsv));
3790 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3791 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3792 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3793 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3794 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3795 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3796 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3797 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3798 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3809 anum = alarm((unsigned int)anum);
3816 DIE(PL_no_func, "Unsupported function alarm");
3827 (void)time(&lasttime);
3832 PerlProc_sleep((unsigned int)duration);
3835 XPUSHi(when - lasttime);
3839 /* Shared memory. */
3843 return pp_semget(ARGS);
3848 return pp_semctl(ARGS);
3853 return pp_shmwrite(ARGS);
3858 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3859 djSP; dMARK; dTARGET;
3860 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
3865 return pp_semget(ARGS);
3869 /* Message passing. */
3873 return pp_semget(ARGS);
3878 return pp_semctl(ARGS);
3883 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3884 djSP; dMARK; dTARGET;
3885 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3890 return pp_semget(ARGS);
3896 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3897 djSP; dMARK; dTARGET;
3898 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3903 return pp_semget(ARGS);
3911 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3912 djSP; dMARK; dTARGET;
3913 int anum = do_ipcget(PL_op->op_type, MARK, SP);
3920 DIE("System V IPC is not implemented on this machine");
3926 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3927 djSP; dMARK; dTARGET;
3928 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
3936 PUSHp(zero_but_true, ZBTLEN);
3940 return pp_semget(ARGS);
3946 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3947 djSP; dMARK; dTARGET;
3948 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3953 return pp_semget(ARGS);
3957 /* Get system info. */
3961 #ifdef HAS_GETHOSTBYNAME
3962 return pp_ghostent(ARGS);
3964 DIE(PL_no_sock_func, "gethostbyname");
3970 #ifdef HAS_GETHOSTBYADDR
3971 return pp_ghostent(ARGS);
3973 DIE(PL_no_sock_func, "gethostbyaddr");
3980 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
3981 I32 which = PL_op->op_type;
3982 register char **elem;
3984 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
3985 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
3986 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
3987 struct hostent *PerlSock_gethostent(void);
3989 struct hostent *hent;
3994 if (which == OP_GHBYNAME)
3995 #ifdef HAS_GETHOSTBYNAME
3996 hent = PerlSock_gethostbyname(POPpx);
3998 DIE(PL_no_sock_func, "gethostbyname");
4000 else if (which == OP_GHBYADDR) {
4001 #ifdef HAS_GETHOSTBYADDR
4002 int addrtype = POPi;
4005 Netdb_host_t addr = (Netdb_host_t) SvPV(addrsv, addrlen);
4007 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4009 DIE(PL_no_sock_func, "gethostbyaddr");
4013 #ifdef HAS_GETHOSTENT
4014 hent = PerlSock_gethostent();
4016 DIE(PL_no_sock_func, "gethostent");
4019 #ifdef HOST_NOT_FOUND
4021 STATUS_NATIVE_SET(h_errno);
4024 if (GIMME != G_ARRAY) {
4025 PUSHs(sv = sv_newmortal());
4027 if (which == OP_GHBYNAME) {
4029 sv_setpvn(sv, hent->h_addr, hent->h_length);
4032 sv_setpv(sv, (char*)hent->h_name);
4038 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4039 sv_setpv(sv, (char*)hent->h_name);
4040 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4041 for (elem = hent->h_aliases; elem && *elem; elem++) {
4042 sv_catpv(sv, *elem);
4044 sv_catpvn(sv, " ", 1);
4046 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4047 sv_setiv(sv, (IV)hent->h_addrtype);
4048 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4049 len = hent->h_length;
4050 sv_setiv(sv, (IV)len);
4052 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4053 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4054 sv_setpvn(sv, *elem, len);
4057 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4059 sv_setpvn(sv, hent->h_addr, len);
4064 DIE(PL_no_sock_func, "gethostent");
4070 #ifdef HAS_GETNETBYNAME
4071 return pp_gnetent(ARGS);
4073 DIE(PL_no_sock_func, "getnetbyname");
4079 #ifdef HAS_GETNETBYADDR
4080 return pp_gnetent(ARGS);
4082 DIE(PL_no_sock_func, "getnetbyaddr");
4089 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4090 I32 which = PL_op->op_type;
4091 register char **elem;
4093 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4094 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4095 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4096 struct netent *PerlSock_getnetent(void);
4098 struct netent *nent;
4101 if (which == OP_GNBYNAME)
4102 #ifdef HAS_GETNETBYNAME
4103 nent = PerlSock_getnetbyname(POPpx);
4105 DIE(PL_no_sock_func, "getnetbyname");
4107 else if (which == OP_GNBYADDR) {
4108 #ifdef HAS_GETNETBYADDR
4109 int addrtype = POPi;
4110 Netdb_net_t addr = (Netdb_net_t) U_L(POPn);
4111 nent = PerlSock_getnetbyaddr(addr, addrtype);
4113 DIE(PL_no_sock_func, "getnetbyaddr");
4117 #ifdef HAS_GETNETENT
4118 nent = PerlSock_getnetent();
4120 DIE(PL_no_sock_func, "getnetent");
4124 if (GIMME != G_ARRAY) {
4125 PUSHs(sv = sv_newmortal());
4127 if (which == OP_GNBYNAME)
4128 sv_setiv(sv, (IV)nent->n_net);
4130 sv_setpv(sv, nent->n_name);
4136 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4137 sv_setpv(sv, nent->n_name);
4138 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4139 for (elem = nent->n_aliases; elem && *elem; elem++) {
4140 sv_catpv(sv, *elem);
4142 sv_catpvn(sv, " ", 1);
4144 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4145 sv_setiv(sv, (IV)nent->n_addrtype);
4146 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4147 sv_setiv(sv, (IV)nent->n_net);
4152 DIE(PL_no_sock_func, "getnetent");
4158 #ifdef HAS_GETPROTOBYNAME
4159 return pp_gprotoent(ARGS);
4161 DIE(PL_no_sock_func, "getprotobyname");
4167 #ifdef HAS_GETPROTOBYNUMBER
4168 return pp_gprotoent(ARGS);
4170 DIE(PL_no_sock_func, "getprotobynumber");
4177 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4178 I32 which = PL_op->op_type;
4179 register char **elem;
4181 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4182 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4183 struct protoent *PerlSock_getprotobynumber(int);
4184 struct protoent *PerlSock_getprotoent(void);
4186 struct protoent *pent;
4189 if (which == OP_GPBYNAME)
4190 #ifdef HAS_GETPROTOBYNAME
4191 pent = PerlSock_getprotobyname(POPpx);
4193 DIE(PL_no_sock_func, "getprotobyname");
4195 else if (which == OP_GPBYNUMBER)
4196 #ifdef HAS_GETPROTOBYNUMBER
4197 pent = PerlSock_getprotobynumber(POPi);
4199 DIE(PL_no_sock_func, "getprotobynumber");
4202 #ifdef HAS_GETPROTOENT
4203 pent = PerlSock_getprotoent();
4205 DIE(PL_no_sock_func, "getprotoent");
4209 if (GIMME != G_ARRAY) {
4210 PUSHs(sv = sv_newmortal());
4212 if (which == OP_GPBYNAME)
4213 sv_setiv(sv, (IV)pent->p_proto);
4215 sv_setpv(sv, pent->p_name);
4221 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4222 sv_setpv(sv, pent->p_name);
4223 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4224 for (elem = pent->p_aliases; elem && *elem; elem++) {
4225 sv_catpv(sv, *elem);
4227 sv_catpvn(sv, " ", 1);
4229 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4230 sv_setiv(sv, (IV)pent->p_proto);
4235 DIE(PL_no_sock_func, "getprotoent");
4241 #ifdef HAS_GETSERVBYNAME
4242 return pp_gservent(ARGS);
4244 DIE(PL_no_sock_func, "getservbyname");
4250 #ifdef HAS_GETSERVBYPORT
4251 return pp_gservent(ARGS);
4253 DIE(PL_no_sock_func, "getservbyport");
4260 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4261 I32 which = PL_op->op_type;
4262 register char **elem;
4264 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4265 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4266 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4267 struct servent *PerlSock_getservent(void);
4269 struct servent *sent;
4272 if (which == OP_GSBYNAME) {
4273 #ifdef HAS_GETSERVBYNAME
4274 char *proto = POPpx;
4277 if (proto && !*proto)
4280 sent = PerlSock_getservbyname(name, proto);
4282 DIE(PL_no_sock_func, "getservbyname");
4285 else if (which == OP_GSBYPORT) {
4286 #ifdef HAS_GETSERVBYPORT
4287 char *proto = POPpx;
4288 unsigned short port = POPu;
4291 port = PerlSock_htons(port);
4293 sent = PerlSock_getservbyport(port, proto);
4295 DIE(PL_no_sock_func, "getservbyport");
4299 #ifdef HAS_GETSERVENT
4300 sent = PerlSock_getservent();
4302 DIE(PL_no_sock_func, "getservent");
4306 if (GIMME != G_ARRAY) {
4307 PUSHs(sv = sv_newmortal());
4309 if (which == OP_GSBYNAME) {
4311 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4313 sv_setiv(sv, (IV)(sent->s_port));
4317 sv_setpv(sv, sent->s_name);
4323 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4324 sv_setpv(sv, sent->s_name);
4325 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4326 for (elem = sent->s_aliases; elem && *elem; elem++) {
4327 sv_catpv(sv, *elem);
4329 sv_catpvn(sv, " ", 1);
4331 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4333 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4335 sv_setiv(sv, (IV)(sent->s_port));
4337 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4338 sv_setpv(sv, sent->s_proto);
4343 DIE(PL_no_sock_func, "getservent");
4350 #ifdef HAS_SETHOSTENT
4351 PerlSock_sethostent(TOPi);
4354 DIE(PL_no_sock_func, "sethostent");
4361 #ifdef HAS_SETNETENT
4362 PerlSock_setnetent(TOPi);
4365 DIE(PL_no_sock_func, "setnetent");
4372 #ifdef HAS_SETPROTOENT
4373 PerlSock_setprotoent(TOPi);
4376 DIE(PL_no_sock_func, "setprotoent");
4383 #ifdef HAS_SETSERVENT
4384 PerlSock_setservent(TOPi);
4387 DIE(PL_no_sock_func, "setservent");
4394 #ifdef HAS_ENDHOSTENT
4395 PerlSock_endhostent();
4399 DIE(PL_no_sock_func, "endhostent");
4406 #ifdef HAS_ENDNETENT
4407 PerlSock_endnetent();
4411 DIE(PL_no_sock_func, "endnetent");
4418 #ifdef HAS_ENDPROTOENT
4419 PerlSock_endprotoent();
4423 DIE(PL_no_sock_func, "endprotoent");
4430 #ifdef HAS_ENDSERVENT
4431 PerlSock_endservent();
4435 DIE(PL_no_sock_func, "endservent");
4442 return pp_gpwent(ARGS);
4444 DIE(PL_no_func, "getpwnam");
4451 return pp_gpwent(ARGS);
4453 DIE(PL_no_func, "getpwuid");
4460 #if defined(HAS_PASSWD) && defined(HAS_GETPWENT)
4461 I32 which = PL_op->op_type;
4463 struct passwd *pwent;
4466 if (which == OP_GPWNAM)
4467 pwent = getpwnam(POPpx);
4468 else if (which == OP_GPWUID)
4469 pwent = getpwuid(POPi);
4471 pwent = (struct passwd *)getpwent();
4474 if (GIMME != G_ARRAY) {
4475 PUSHs(sv = sv_newmortal());
4477 if (which == OP_GPWNAM)
4478 sv_setiv(sv, (IV)pwent->pw_uid);
4480 sv_setpv(sv, pwent->pw_name);
4486 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4487 sv_setpv(sv, pwent->pw_name);
4489 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4491 sv_setpv(sv, pwent->pw_passwd);
4494 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4495 sv_setiv(sv, (IV)pwent->pw_uid);
4497 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4498 sv_setiv(sv, (IV)pwent->pw_gid);
4500 /* pw_change, pw_quota, and pw_age are mutually exclusive. */
4501 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4503 sv_setiv(sv, (IV)pwent->pw_change);
4506 sv_setiv(sv, (IV)pwent->pw_quota);
4509 sv_setpv(sv, pwent->pw_age);
4514 /* pw_class and pw_comment are mutually exclusive. */
4515 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4517 sv_setpv(sv, pwent->pw_class);
4520 sv_setpv(sv, pwent->pw_comment);
4524 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4526 sv_setpv(sv, pwent->pw_gecos);
4528 #ifndef INCOMPLETE_TAINTS
4529 /* pw_gecos is tainted because user himself can diddle with it. */
4533 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4534 sv_setpv(sv, pwent->pw_dir);
4536 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4537 sv_setpv(sv, pwent->pw_shell);
4540 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4541 sv_setiv(sv, (IV)pwent->pw_expire);
4546 DIE(PL_no_func, "getpwent");
4553 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT) && !defined(CYGWIN32)
4557 DIE(PL_no_func, "setpwent");
4564 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
4568 DIE(PL_no_func, "endpwent");
4575 return pp_ggrent(ARGS);
4577 DIE(PL_no_func, "getgrnam");
4584 return pp_ggrent(ARGS);
4586 DIE(PL_no_func, "getgrgid");
4593 #if defined(HAS_GROUP) && defined(HAS_GETGRENT)
4594 I32 which = PL_op->op_type;
4595 register char **elem;
4597 struct group *grent;
4600 if (which == OP_GGRNAM)
4601 grent = (struct group *)getgrnam(POPpx);
4602 else if (which == OP_GGRGID)
4603 grent = (struct group *)getgrgid(POPi);
4605 grent = (struct group *)getgrent();
4608 if (GIMME != G_ARRAY) {
4609 PUSHs(sv = sv_newmortal());
4611 if (which == OP_GGRNAM)
4612 sv_setiv(sv, (IV)grent->gr_gid);
4614 sv_setpv(sv, grent->gr_name);
4620 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4621 sv_setpv(sv, grent->gr_name);
4623 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4625 sv_setpv(sv, grent->gr_passwd);
4628 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4629 sv_setiv(sv, (IV)grent->gr_gid);
4631 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4632 for (elem = grent->gr_mem; elem && *elem; elem++) {
4633 sv_catpv(sv, *elem);
4635 sv_catpvn(sv, " ", 1);
4641 DIE(PL_no_func, "getgrent");
4648 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
4652 DIE(PL_no_func, "setgrent");
4659 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
4663 DIE(PL_no_func, "endgrent");
4673 if (!(tmps = PerlProc_getlogin()))
4675 PUSHp(tmps, strlen(tmps));
4678 DIE(PL_no_func, "getlogin");
4682 /* Miscellaneous. */
4687 djSP; dMARK; dORIGMARK; dTARGET;
4688 register I32 items = SP - MARK;
4689 unsigned long a[20];
4696 while (++MARK <= SP) {
4697 if (SvTAINTED(*MARK)) {
4703 TAINT_PROPER("syscall");
4706 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4707 * or where sizeof(long) != sizeof(char*). But such machines will
4708 * not likely have syscall implemented either, so who cares?
4710 while (++MARK <= SP) {
4711 if (SvNIOK(*MARK) || !i)
4712 a[i++] = SvIV(*MARK);
4713 else if (*MARK == &PL_sv_undef)
4716 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
4722 DIE("Too many args to syscall");
4724 DIE("Too few args to syscall");
4726 retval = syscall(a[0]);
4729 retval = syscall(a[0],a[1]);
4732 retval = syscall(a[0],a[1],a[2]);
4735 retval = syscall(a[0],a[1],a[2],a[3]);
4738 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4741 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4744 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4747 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4751 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4754 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],
4769 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4770 a[10],a[11],a[12],a[13]);
4772 #endif /* atarist */
4778 DIE(PL_no_func, "syscall");
4782 #ifdef FCNTL_EMULATE_FLOCK
4784 /* XXX Emulate flock() with fcntl().
4785 What's really needed is a good file locking module.
4789 fcntl_emulate_flock(int fd, int operation)
4793 switch (operation & ~LOCK_NB) {
4795 flock.l_type = F_RDLCK;
4798 flock.l_type = F_WRLCK;
4801 flock.l_type = F_UNLCK;
4807 flock.l_whence = SEEK_SET;
4808 flock.l_start = flock.l_len = 0L;
4810 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4813 #endif /* FCNTL_EMULATE_FLOCK */
4815 #ifdef LOCKF_EMULATE_FLOCK
4817 /* XXX Emulate flock() with lockf(). This is just to increase
4818 portability of scripts. The calls are not completely
4819 interchangeable. What's really needed is a good file
4823 /* The lockf() constants might have been defined in <unistd.h>.
4824 Unfortunately, <unistd.h> causes troubles on some mixed
4825 (BSD/POSIX) systems, such as SunOS 4.1.3.
4827 Further, the lockf() constants aren't POSIX, so they might not be
4828 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4829 just stick in the SVID values and be done with it. Sigh.
4833 # define F_ULOCK 0 /* Unlock a previously locked region */
4836 # define F_LOCK 1 /* Lock a region for exclusive use */
4839 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4842 # define F_TEST 3 /* Test a region for other processes locks */
4846 lockf_emulate_flock (fd, operation)
4854 /* flock locks entire file so for lockf we need to do the same */
4856 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
4857 if (pos > 0) /* is seekable and needs to be repositioned */
4858 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
4859 pos = -1; /* seek failed, so don't seek back afterwards */
4862 switch (operation) {
4864 /* LOCK_SH - get a shared lock */
4866 /* LOCK_EX - get an exclusive lock */
4868 i = lockf (fd, F_LOCK, 0);
4871 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4872 case LOCK_SH|LOCK_NB:
4873 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4874 case LOCK_EX|LOCK_NB:
4875 i = lockf (fd, F_TLOCK, 0);
4877 if ((errno == EAGAIN) || (errno == EACCES))
4878 errno = EWOULDBLOCK;
4881 /* LOCK_UN - unlock (non-blocking is a no-op) */
4883 case LOCK_UN|LOCK_NB:
4884 i = lockf (fd, F_ULOCK, 0);
4887 /* Default - can't decipher operation */
4894 if (pos > 0) /* need to restore position of the handle */
4895 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
4900 #endif /* LOCKF_EMULATE_FLOCK */