3 * Copyright (c) 1991-1994, 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. */
26 # include <sys/wait.h>
30 # include <sys/resource.h>
33 /* Put this after #includes because fork and vfork prototypes may
40 #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
41 # include <sys/socket.h>
45 # include <net/errno.h>
52 #include <sys/select.h>
64 struct passwd *getpwnam _((char *));
65 struct passwd *getpwuid _((Uid_t));
67 struct passwd *getpwent _((void));
74 struct group *getgrnam _((char *));
75 struct group *getgrgid _((Gid_t));
77 struct group *getgrent _((void));
90 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
91 static int dooneliner _((char *cmd, char *filename));
95 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
98 # define my_chsize chsize
103 #else /* no flock() */
105 /* fcntl.h might not have been included, even if it exists, because
106 the current Configure only sets I_FCNTL if it's needed to pick up
107 the *_OK constants. Make sure it has been included before testing
108 the fcntl() locking constants. */
109 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
113 # if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
114 # define FLOCK fcntl_emulate_flock
115 # define FCNTL_EMULATE_FLOCK
116 # else /* no flock() or fcntl(F_SETLK,...) */
118 # define FLOCK lockf_emulate_flock
119 # define LOCKF_EMULATE_FLOCK
121 # endif /* no flock() or fcntl(F_SETLK,...) */
124 static int FLOCK _((int, int));
127 * These are the flock() constants. Since this sytems doesn't have
128 * flock(), the values of the constants are probably not available.
142 # endif /* emulating flock() */
144 #endif /* no flock() */
155 fp = my_popen(tmps, "r");
157 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
158 if (GIMME == G_SCALAR) {
159 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
169 if (sv_gets(sv, fp, 0) == Nullch) {
173 XPUSHs(sv_2mortal(sv));
174 if (SvLEN(sv) - SvCUR(sv) > 20) {
175 SvLEN_set(sv, SvCUR(sv)+1);
176 Renew(SvPVX(sv), SvLEN(sv), char);
180 statusvalue = FIXSTATUS(my_pclose(fp));
184 if (GIMME == G_SCALAR)
196 SAVESPTR(last_in_gv); /* We don't want this to be permanent. */
197 last_in_gv = (GV*)*stack_sp--;
199 SAVESPTR(rs); /* This is not permanent, either. */
200 rs = sv_2mortal(newSVpv("", 1));
207 result = do_readline();
214 last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*stack_sp--)), na), TRUE,SVt_PVIO);
215 return do_readline();
220 last_in_gv = cGVOP->op_gv;
221 return do_readline();
228 if (SP - MARK != 1) {
230 do_join(TARG, &sv_no, MARK, SP);
231 tmps = SvPV(TARG, na);
235 tmps = SvPV(TOPs, na);
237 if (!tmps || !*tmps) {
238 SV *error = GvSV(errgv);
239 (void)SvUPGRADE(error, SVt_PV);
240 if (SvPOK(error) && SvCUR(error))
241 sv_catpv(error, "\t...caught");
242 tmps = SvPV(error, na);
245 tmps = "Warning: something's wrong";
254 if (SP - MARK != 1) {
256 do_join(TARG, &sv_no, MARK, SP);
257 tmps = SvPV(TARG, na);
261 tmps = SvPV(TOPs, na);
263 if (!tmps || !*tmps) {
264 SV *error = GvSV(errgv);
265 (void)SvUPGRADE(error, SVt_PV);
266 if (SvPOK(error) && SvCUR(error))
267 sv_catpv(error, "\t...propagated");
268 tmps = SvPV(error, na);
288 DIE(no_usym, "filehandle");
293 DIE(no_usym, "filehandle");
295 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
296 tmps = SvPV(sv, len);
297 if (do_open(gv, tmps, len, FALSE, 0, 0, Nullfp))
298 PUSHi( (I32)forkprocess );
299 else if (forkprocess == 0) /* we are a new child */
316 PUSHs( do_close(gv, TRUE) ? &sv_yes : &sv_no );
336 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
337 DIE(no_usym, "filehandle");
342 do_close(rgv, FALSE);
344 do_close(wgv, FALSE);
349 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
350 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
351 IoIFP(wstio) = IoOFP(wstio);
355 if (!IoIFP(rstio) || !IoOFP(wstio)) {
356 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
358 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
368 DIE(no_func, "pipe");
381 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
383 PUSHi(PerlIO_fileno(fp));
399 TAINT_PROPER("umask");
402 DIE(no_func, "Unsupported function umask");
420 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
425 if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN))
430 if (setmode(PerlIO_fileno(fp), OP_BINARY) != -1)
436 #if defined(USEMYBINMODE)
437 if (my_binmode(fp,IoTYPE(io)) != NULL)
456 SV **mark = stack_base + ++*markstack_ptr; /* reuse in entersub */
457 I32 markoff = mark - stack_base - 1;
461 if (SvTYPE(varsv) == SVt_PVHV)
462 methname = "TIEHASH";
463 else if (SvTYPE(varsv) == SVt_PVAV)
464 methname = "TIEARRAY";
465 else if (SvTYPE(varsv) == SVt_PVGV)
466 methname = "TIEHANDLE";
468 methname = "TIESCALAR";
470 stash = gv_stashsv(mark[1], FALSE);
471 if (!stash || !(gv = gv_fetchmethod(stash, methname)) || !GvCV(gv))
472 DIE("Can't locate object method \"%s\" via package \"%s\"",
473 methname, SvPV(mark[1],na));
475 Zero(&myop, 1, BINOP);
476 myop.op_last = (OP *) &myop;
477 myop.op_next = Nullop;
478 myop.op_flags = OPf_KNOW|OPf_STACKED;
483 if (perldb && curstash != debstash)
484 op->op_private |= OPpENTERSUB_DB;
489 if (op = pp_entersub())
494 if (sv_isobject(sv)) {
495 if (SvTYPE(varsv) == SVt_PVHV || SvTYPE(varsv) == SVt_PVAV) {
496 sv_unmagic(varsv, 'P');
497 sv_magic(varsv, sv, 'P', Nullch, 0);
500 sv_unmagic(varsv, 'q');
501 sv_magic(varsv, sv, 'q', Nullch, 0);
505 SP = stack_base + markoff;
520 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
521 mg = mg_find(sv, 'P') ;
523 mg = mg_find(sv, 'q') ;
525 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
526 warn("untie attempted while %d inner references still exist",
527 SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
531 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
546 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
547 mg = mg_find(sv, 'P') ;
549 mg = mg_find(sv, 'q') ;
552 PUSHs(sv_2mortal(newSVsv(mg->mg_obj))) ;
572 sv = sv_mortalcopy(&sv_no);
573 sv_setpv(sv, "AnyDBM_File");
574 stash = gv_stashsv(sv, FALSE);
575 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH")) || !GvCV(gv)) {
577 perl_require_pv("AnyDBM_File.pm");
579 if (!(gv = gv_fetchmethod(stash, "TIEHASH")) || !GvCV(gv))
580 DIE("No dbm on this machine");
583 Zero(&myop, 1, BINOP);
584 myop.op_last = (OP *) &myop;
585 myop.op_next = Nullop;
586 myop.op_flags = OPf_KNOW|OPf_STACKED;
591 if (perldb && curstash != debstash)
592 op->op_private |= OPpENTERSUB_DB;
600 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
602 PUSHs(sv_2mortal(newSViv(O_RDWR)));
607 if (op = pp_entersub())
611 if (!sv_isobject(TOPs)) {
619 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
624 if (op = pp_entersub())
629 if (sv_isobject(TOPs))
630 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
637 return pp_untie(ARGS);
651 struct timeval timebuf;
652 struct timeval *tbuf = &timebuf;
655 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
660 # if BYTEORDER & 0xf0000
661 # define ORDERBYTE (0x88888888 - BYTEORDER)
663 # define ORDERBYTE (0x4444 - BYTEORDER)
669 for (i = 1; i <= 3; i++) {
677 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
679 growsize = sizeof(fd_set);
681 growsize = maxlen; /* little endians can use vecs directly */
690 masksize = NFDBITS / NBBY;
692 masksize = sizeof(long); /* documented int, everyone seems to use long */
694 growsize = maxlen + (masksize - (maxlen % masksize));
695 Zero(&fd_sets[0], 4, char*);
703 timebuf.tv_sec = (long)value;
704 value -= (double)timebuf.tv_sec;
705 timebuf.tv_usec = (long)(value * 1000000.0);
708 tbuf = Null(struct timeval*);
710 for (i = 1; i <= 3; i++) {
717 SvPV_force(sv,na); /* force string conversion */
720 Sv_Grow(sv, growsize);
724 while (++j <= growsize) {
728 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
730 New(403, fd_sets[i], growsize, char);
731 for (offset = 0; offset < growsize; offset += masksize) {
732 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
733 fd_sets[i][j+offset] = s[(k % masksize) + offset];
736 fd_sets[i] = SvPVX(sv);
742 (Select_fd_set_t) fd_sets[1],
743 (Select_fd_set_t) fd_sets[2],
744 (Select_fd_set_t) fd_sets[3],
746 for (i = 1; i <= 3; i++) {
749 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
751 for (offset = 0; offset < growsize; offset += masksize) {
752 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
753 s[(k % masksize) + offset] = fd_sets[i][j+offset];
755 Safefree(fd_sets[i]);
762 if (GIMME == G_ARRAY && tbuf) {
763 value = (double)(timebuf.tv_sec) +
764 (double)(timebuf.tv_usec) / 1000000.0;
765 PUSHs(sv = sv_mortalcopy(&sv_no));
770 DIE("select not implemented");
779 (void)SvREFCNT_inc(gv);
781 SvREFCNT_dec(defoutgv);
791 newdefout = (op->op_private > 0) ? ((GV *) POPs) : NULL;
793 egv = GvEGV(defoutgv);
800 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
801 if (gvp && *gvp == egv)
802 gv_efullname3(TARG, defoutgv, Nullch);
804 sv_setsv(TARG, sv_2mortal(newRV((SV*)egv)));
809 if (!GvIO(newdefout))
811 setdefout(newdefout);
828 if (!gv || do_eof(gv)) /* make sure we have fp with something */
832 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
839 return pp_sysread(ARGS);
848 register CONTEXT *cx;
850 AV* padlist = CvPADLIST(cv);
851 SV** svp = AvARRAY(padlist);
857 PUSHBLOCK(cx, CXt_SUB, stack_sp);
860 curpad = AvARRAY((AV*)svp[1]);
862 setdefout(gv); /* locally select filehandle so $% et al work */
895 SV *tmpsv = sv_newmortal();
896 gv_efullname3(tmpsv, fgv, Nullch);
897 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
899 DIE("Not a format reference");
901 IoFLAGS(io) &= ~IOf_DIDTOP;
903 return doform(cv,gv,op->op_next);
909 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
910 register IO *io = GvIOp(gv);
911 PerlIO *ofp = IoOFP(io);
915 register CONTEXT *cx;
917 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
918 (long)IoLINES_LEFT(io), (long)FmLINES(formtarget)));
919 if (IoLINES_LEFT(io) < FmLINES(formtarget) &&
920 formtarget != toptarget)
928 if (!IoTOP_NAME(io)) {
930 IoFMT_NAME(io) = savepv(GvNAME(gv));
931 sprintf(tmpbuf, "%s_TOP", IoFMT_NAME(io));
932 topgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVFM);
933 if ((topgv && GvFORM(topgv)) ||
934 !gv_fetchpv("top",FALSE,SVt_PVFM))
935 IoTOP_NAME(io) = savepv(tmpbuf);
937 IoTOP_NAME(io) = savepv("top");
939 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
940 if (!topgv || !GvFORM(topgv)) {
941 IoLINES_LEFT(io) = 100000000;
944 IoTOP_GV(io) = topgv;
946 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
947 I32 lines = IoLINES_LEFT(io);
948 char *s = SvPVX(formtarget);
949 if (lines <= 0) /* Yow, header didn't even fit!!! */
951 while (lines-- > 0) {
958 PerlIO_write(ofp, SvPVX(formtarget), s - SvPVX(formtarget));
959 sv_chop(formtarget, s);
960 FmLINES(formtarget) -= IoLINES_LEFT(io);
963 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
964 PerlIO_write(ofp, SvPVX(formfeed), SvCUR(formfeed));
965 IoLINES_LEFT(io) = IoPAGE_LEN(io);
967 formtarget = toptarget;
968 IoFLAGS(io) |= IOf_DIDTOP;
971 DIE("bad top format reference");
974 SV *tmpsv = sv_newmortal();
975 gv_efullname3(tmpsv, fgv, Nullch);
976 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
978 return doform(cv,gv,op);
990 warn("Filehandle only opened for input");
992 warn("Write on closed filehandle");
997 if ((IoLINES_LEFT(io) -= FmLINES(formtarget)) < 0) {
999 warn("page overflow");
1001 if (!PerlIO_write(ofp, SvPVX(formtarget), SvCUR(formtarget)) ||
1005 FmLINES(formtarget) = 0;
1006 SvCUR_set(formtarget, 0);
1007 *SvEND(formtarget) = '\0';
1008 if (IoFLAGS(io) & IOf_FLUSH)
1009 (void)PerlIO_flush(fp);
1013 formtarget = bodytarget;
1015 return pop_return();
1020 dSP; dMARK; dORIGMARK;
1024 SV *sv = NEWSV(0,0);
1026 if (op->op_flags & OPf_STACKED)
1030 if (!(io = GvIO(gv))) {
1032 gv_fullname3(sv, gv, Nullch);
1033 warn("Filehandle %s never opened", SvPV(sv,na));
1035 SETERRNO(EBADF,RMS$_IFI);
1038 else if (!(fp = IoOFP(io))) {
1040 gv_fullname3(sv, gv, Nullch);
1042 warn("Filehandle %s opened only for input", SvPV(sv,na));
1044 warn("printf on closed filehandle %s", SvPV(sv,na));
1046 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1050 #ifdef USE_LOCALE_NUMERIC
1051 if (op->op_private & OPpLOCALE)
1052 SET_NUMERIC_LOCAL();
1054 SET_NUMERIC_STANDARD();
1056 do_sprintf(sv, SP - MARK, MARK + 1);
1057 if (!do_print(sv, fp))
1060 if (IoFLAGS(io) & IOf_FLUSH)
1061 if (PerlIO_flush(fp) == EOF)
1093 tmps = SvPV(sv, len);
1094 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1095 IoLINES(GvIOp(gv)) = 0;
1106 dSP; dMARK; dORIGMARK; dTARGET;
1121 sv_setpvn(bufsv, "", 0);
1122 buffer = SvPV_force(bufsv, blen);
1123 length = SvIVx(*++MARK);
1125 DIE("Negative length");
1128 offset = SvIVx(*++MARK);
1132 if (!io || !IoIFP(io))
1135 if (op->op_type == OP_RECV) {
1136 bufsize = sizeof buf;
1137 buffer = SvGROW(bufsv, length+1);
1138 /* 'offset' means 'flags' here */
1139 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1140 (struct sockaddr *)buf, &bufsize);
1143 SvCUR_set(bufsv, length);
1144 *SvEND(bufsv) = '\0';
1145 (void)SvPOK_only(bufsv);
1147 /* This should not be marked tainted if the fp is marked clean */
1148 if (!(IoFLAGS(io) & IOf_UNTAINT))
1149 SvTAINTED_on(bufsv);
1151 sv_setpvn(TARG, buf, bufsize);
1156 if (op->op_type == OP_RECV)
1157 DIE(no_sock_func, "recv");
1161 DIE("Offset outside string");
1164 bufsize = SvCUR(bufsv);
1165 buffer = SvGROW(bufsv, length+offset+1);
1166 if (offset > bufsize) { /* Zero any newly allocated space */
1167 Zero(buffer+bufsize, offset-bufsize, char);
1169 if (op->op_type == OP_SYSREAD) {
1170 length = read(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1173 #ifdef HAS_SOCKET__bad_code_maybe
1174 if (IoTYPE(io) == 's') {
1175 bufsize = sizeof buf;
1176 length = recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1177 (struct sockaddr *)buf, &bufsize);
1181 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1184 SvCUR_set(bufsv, length+offset);
1185 *SvEND(bufsv) = '\0';
1186 (void)SvPOK_only(bufsv);
1188 /* This should not be marked tainted if the fp is marked clean */
1189 if (!(IoFLAGS(io) & IOf_UNTAINT))
1190 SvTAINTED_on(bufsv);
1202 return pp_send(ARGS);
1207 dSP; dMARK; dORIGMARK; dTARGET;
1220 buffer = SvPV(bufsv, blen);
1221 length = SvIVx(*++MARK);
1223 DIE("Negative length");
1226 if (!io || !IoIFP(io)) {
1229 if (op->op_type == OP_SYSWRITE)
1230 warn("Syswrite on closed filehandle");
1232 warn("Send on closed socket");
1235 else if (op->op_type == OP_SYSWRITE) {
1237 offset = SvIVx(*++MARK);
1240 DIE("Offset outside string");
1242 } else if (offset >= blen)
1243 DIE("Offset outside string");
1246 if (length > blen - offset)
1247 length = blen - offset;
1248 length = write(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
1251 else if (SP > MARK) {
1254 sockbuf = SvPVx(*++MARK, mlen);
1255 length = sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, length,
1256 (struct sockaddr *)sockbuf, mlen);
1259 length = send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1262 DIE(no_sock_func, "send");
1277 return pp_sysread(ARGS);
1288 gv = last_in_gv = (GV*)POPs;
1289 PUSHs(!gv || do_eof(gv) ? &sv_yes : &sv_no);
1301 gv = last_in_gv = (GV*)POPs;
1302 PUSHi( do_tell(gv) );
1313 gv = last_in_gv = (GV*)POPs;
1314 PUSHs( do_seek(gv, offset, whence) ? &sv_yes : &sv_no );
1321 Off_t len = (Off_t)POPn;
1326 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1327 if (op->op_flags & OPf_SPECIAL) {
1328 tmpgv = gv_fetchpv(POPp,FALSE, SVt_PVIO);
1330 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1332 ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1334 my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1340 if (SvTYPE(sv) == SVt_PVGV) {
1341 tmpgv = (GV*)sv; /* *main::FRED for example */
1344 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1345 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1349 if (truncate (SvPV (sv, na), len) < 0)
1355 if ((tmpfd = open(SvPV (sv, na), O_RDWR)) < 0)
1358 if (my_chsize(tmpfd, len) < 0)
1369 SETERRNO(EBADF,RMS$_IFI);
1372 DIE("truncate not implemented");
1378 return pp_ioctl(ARGS);
1385 unsigned int func = U_I(POPn);
1386 int optype = op->op_type;
1392 if (!io || !argsv || !IoIFP(io)) {
1393 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1397 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1399 s = SvPV_force(argsv, len);
1400 retval = IOCPARM_LEN(func);
1402 s = Sv_Grow(argsv, retval+1);
1403 SvCUR_set(argsv, retval);
1406 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1409 retval = SvIV(argsv);
1411 s = (char*)(long)retval; /* ouch */
1413 s = (char*)retval; /* ouch */
1417 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1419 if (optype == OP_IOCTL)
1421 retval = ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1423 DIE("ioctl is not implemented");
1427 #if defined(OS2) && defined(__EMX__)
1428 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1430 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1433 DIE("fcntl is not implemented");
1437 if (s[SvCUR(argsv)] != 17)
1438 DIE("Possible memory corruption: %s overflowed 3rd argument",
1440 s[SvCUR(argsv)] = 0; /* put our null back */
1441 SvSETMAGIC(argsv); /* Assume it has changed */
1450 PUSHp("0 but true", 10);
1470 fp = IoIFP(GvIOp(gv));
1474 value = (I32)(FLOCK(PerlIO_fileno(fp), argtype) >= 0);
1481 DIE(no_func, "flock()");
1493 int protocol = POPi;
1501 SETERRNO(EBADF,LIB$_INVARG);
1507 do_close(gv, FALSE);
1509 TAINT_PROPER("socket");
1510 fd = socket(domain, type, protocol);
1513 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
1514 IoOFP(io) = PerlIO_fdopen(fd, "w");
1516 if (!IoIFP(io) || !IoOFP(io)) {
1517 if (IoIFP(io)) PerlIO_close(IoIFP(io));
1518 if (IoOFP(io)) PerlIO_close(IoOFP(io));
1519 if (!IoIFP(io) && !IoOFP(io)) close(fd);
1525 DIE(no_sock_func, "socket");
1532 #ifdef HAS_SOCKETPAIR
1537 int protocol = POPi;
1550 do_close(gv1, FALSE);
1552 do_close(gv2, FALSE);
1554 TAINT_PROPER("socketpair");
1555 if (socketpair(domain, type, protocol, fd) < 0)
1557 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
1558 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
1560 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
1561 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
1563 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1564 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
1565 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
1566 if (!IoIFP(io1) && !IoOFP(io1)) close(fd[0]);
1567 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
1568 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
1569 if (!IoIFP(io2) && !IoOFP(io2)) close(fd[1]);
1575 DIE(no_sock_func, "socketpair");
1586 register IO *io = GvIOn(gv);
1589 if (!io || !IoIFP(io))
1592 addr = SvPV(addrsv, len);
1593 TAINT_PROPER("bind");
1594 if (bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1601 warn("bind() on closed fd");
1602 SETERRNO(EBADF,SS$_IVCHAN);
1605 DIE(no_sock_func, "bind");
1616 register IO *io = GvIOn(gv);
1619 if (!io || !IoIFP(io))
1622 addr = SvPV(addrsv, len);
1623 TAINT_PROPER("connect");
1624 if (connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1631 warn("connect() on closed fd");
1632 SETERRNO(EBADF,SS$_IVCHAN);
1635 DIE(no_sock_func, "connect");
1645 register IO *io = GvIOn(gv);
1647 if (!io || !IoIFP(io))
1650 if (listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
1657 warn("listen() on closed fd");
1658 SETERRNO(EBADF,SS$_IVCHAN);
1661 DIE(no_sock_func, "listen");
1673 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1674 int len = sizeof saddr;
1686 if (!gstio || !IoIFP(gstio))
1691 do_close(ngv, FALSE);
1693 fd = accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
1696 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
1697 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
1698 IoTYPE(nstio) = 's';
1699 if (!IoIFP(nstio) || !IoOFP(nstio)) {
1700 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
1701 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
1702 if (!IoIFP(nstio) && !IoOFP(nstio)) close(fd);
1706 PUSHp((char *)&saddr, len);
1711 warn("accept() on closed fd");
1712 SETERRNO(EBADF,SS$_IVCHAN);
1718 DIE(no_sock_func, "accept");
1728 register IO *io = GvIOn(gv);
1730 if (!io || !IoIFP(io))
1733 PUSHi( shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
1738 warn("shutdown() on closed fd");
1739 SETERRNO(EBADF,SS$_IVCHAN);
1742 DIE(no_sock_func, "shutdown");
1749 return pp_ssockopt(ARGS);
1751 DIE(no_sock_func, "getsockopt");
1759 int optype = op->op_type;
1762 unsigned int optname;
1768 if (optype == OP_GSOCKOPT)
1769 sv = sv_2mortal(NEWSV(22, 257));
1772 optname = (unsigned int) POPi;
1773 lvl = (unsigned int) POPi;
1777 if (!io || !IoIFP(io))
1780 fd = PerlIO_fileno(IoIFP(io));
1784 (void)SvPOK_only(sv);
1788 if (getsockopt(fd, lvl, optname, SvPVX(sv), &aint) < 0)
1798 buf = SvPV(sv, len);
1799 else if (SvOK(sv)) {
1800 aint = (int)SvIV(sv);
1804 if (setsockopt(fd, lvl, optname, buf, (int)len) < 0)
1814 warn("[gs]etsockopt() on closed fd");
1815 SETERRNO(EBADF,SS$_IVCHAN);
1820 DIE(no_sock_func, "setsockopt");
1827 return pp_getpeername(ARGS);
1829 DIE(no_sock_func, "getsockname");
1837 int optype = op->op_type;
1841 register IO *io = GvIOn(gv);
1844 if (!io || !IoIFP(io))
1847 sv = sv_2mortal(NEWSV(22, 257));
1848 (void)SvPOK_only(sv);
1852 fd = PerlIO_fileno(IoIFP(io));
1854 case OP_GETSOCKNAME:
1855 if (getsockname(fd, (struct sockaddr *)SvPVX(sv), &aint) < 0)
1858 case OP_GETPEERNAME:
1859 if (getpeername(fd, (struct sockaddr *)SvPVX(sv), &aint) < 0)
1863 #ifdef BOGUS_GETNAME_RETURN
1864 /* Interactive Unix, getpeername() and getsockname()
1865 does not return valid namelen */
1866 if (aint == BOGUS_GETNAME_RETURN)
1867 aint = sizeof(struct sockaddr);
1876 warn("get{sock, peer}name() on closed fd");
1877 SETERRNO(EBADF,SS$_IVCHAN);
1882 DIE(no_sock_func, "getpeername");
1890 return pp_stat(ARGS);
1899 if (op->op_flags & OPf_REF) {
1900 tmpgv = cGVOP->op_gv;
1902 if (tmpgv != defgv) {
1903 laststype = OP_STAT;
1905 sv_setpv(statname, "");
1906 laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
1907 ? Fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &statcache) : -1);
1909 if (laststatval < 0)
1914 if (SvTYPE(sv) == SVt_PVGV) {
1918 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1919 tmpgv = (GV*)SvRV(sv);
1922 sv_setpv(statname, SvPV(sv,na));
1925 laststype = op->op_type;
1926 if (op->op_type == OP_LSTAT)
1927 laststatval = lstat(SvPV(statname, na), &statcache);
1930 laststatval = Stat(SvPV(statname, na), &statcache);
1931 if (laststatval < 0) {
1932 if (dowarn && strchr(SvPV(statname, na), '\n'))
1933 warn(warn_nl, "stat");
1938 if (GIMME != G_ARRAY) {
1949 PUSHs(sv_2mortal(newSViv((I32)statcache.st_dev)));
1950 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ino)));
1951 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mode)));
1952 PUSHs(sv_2mortal(newSViv((I32)statcache.st_nlink)));
1953 PUSHs(sv_2mortal(newSViv((I32)statcache.st_uid)));
1954 PUSHs(sv_2mortal(newSViv((I32)statcache.st_gid)));
1955 #ifdef USE_STAT_RDEV
1956 PUSHs(sv_2mortal(newSViv((I32)statcache.st_rdev)));
1958 PUSHs(sv_2mortal(newSVpv("", 0)));
1960 PUSHs(sv_2mortal(newSViv((I32)statcache.st_size)));
1962 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_atime)));
1963 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_mtime)));
1964 PUSHs(sv_2mortal(newSVnv((U32)statcache.st_ctime)));
1966 PUSHs(sv_2mortal(newSViv((I32)statcache.st_atime)));
1967 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mtime)));
1968 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ctime)));
1970 #ifdef USE_STAT_BLOCKS
1971 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blksize)));
1972 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blocks)));
1974 PUSHs(sv_2mortal(newSVpv("", 0)));
1975 PUSHs(sv_2mortal(newSVpv("", 0)));
1983 I32 result = my_stat(ARGS);
1987 if (cando(S_IRUSR, 0, &statcache))
1994 I32 result = my_stat(ARGS);
1998 if (cando(S_IWUSR, 0, &statcache))
2005 I32 result = my_stat(ARGS);
2009 if (cando(S_IXUSR, 0, &statcache))
2016 I32 result = my_stat(ARGS);
2020 if (cando(S_IRUSR, 1, &statcache))
2027 I32 result = my_stat(ARGS);
2031 if (cando(S_IWUSR, 1, &statcache))
2038 I32 result = my_stat(ARGS);
2042 if (cando(S_IXUSR, 1, &statcache))
2049 I32 result = my_stat(ARGS);
2058 return pp_ftrowned(ARGS);
2063 I32 result = my_stat(ARGS);
2067 if (statcache.st_uid == (op->op_type == OP_FTEOWNED ? euid : uid) )
2074 I32 result = my_stat(ARGS);
2078 if (!statcache.st_size)
2085 I32 result = my_stat(ARGS);
2089 PUSHi(statcache.st_size);
2095 I32 result = my_stat(ARGS);
2099 PUSHn( ((I32)basetime - (I32)statcache.st_mtime) / 86400.0 );
2105 I32 result = my_stat(ARGS);
2109 PUSHn( ((I32)basetime - (I32)statcache.st_atime) / 86400.0 );
2115 I32 result = my_stat(ARGS);
2119 PUSHn( ((I32)basetime - (I32)statcache.st_ctime) / 86400.0 );
2125 I32 result = my_stat(ARGS);
2129 if (S_ISSOCK(statcache.st_mode))
2136 I32 result = my_stat(ARGS);
2140 if (S_ISCHR(statcache.st_mode))
2147 I32 result = my_stat(ARGS);
2151 if (S_ISBLK(statcache.st_mode))
2158 I32 result = my_stat(ARGS);
2162 if (S_ISREG(statcache.st_mode))
2169 I32 result = my_stat(ARGS);
2173 if (S_ISDIR(statcache.st_mode))
2180 I32 result = my_stat(ARGS);
2184 if (S_ISFIFO(statcache.st_mode))
2191 I32 result = my_lstat(ARGS);
2195 if (S_ISLNK(statcache.st_mode))
2204 I32 result = my_stat(ARGS);
2208 if (statcache.st_mode & S_ISUID)
2218 I32 result = my_stat(ARGS);
2222 if (statcache.st_mode & S_ISGID)
2232 I32 result = my_stat(ARGS);
2236 if (statcache.st_mode & S_ISVTX)
2248 if (op->op_flags & OPf_REF) {
2253 gv = gv_fetchpv(tmps = POPp, FALSE, SVt_PVIO);
2254 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2255 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2256 else if (isDIGIT(*tmps))
2265 #if defined(atarist) /* this will work with atariST. Configure will
2266 make guesses for other systems. */
2267 # define FILE_base(f) ((f)->_base)
2268 # define FILE_ptr(f) ((f)->_ptr)
2269 # define FILE_cnt(f) ((f)->_cnt)
2270 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
2280 register STDCHAR *s;
2285 if (op->op_flags & OPf_REF)
2287 else if (isGV(TOPs))
2289 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2290 gv = (GV*)SvRV(POPs);
2301 goto really_filename;
2307 sv_setpv(statname, "");
2310 if (io && IoIFP(io)) {
2311 if (! PerlIO_has_base(IoIFP(io)))
2312 DIE("-T and -B not implemented on filehandles");
2313 laststatval = Fstat(PerlIO_fileno(IoIFP(io)), &statcache);
2314 if (laststatval < 0)
2316 if (S_ISDIR(statcache.st_mode)) /* handle NFS glitch */
2317 if (op->op_type == OP_FTTEXT)
2321 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
2322 i = PerlIO_getc(IoIFP(io));
2324 (void)PerlIO_ungetc(IoIFP(io),i);
2326 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
2328 len = PerlIO_get_bufsiz(IoIFP(io));
2329 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
2330 /* sfio can have large buffers - limit to 512 */
2336 warn("Test on unopened file <%s>",
2337 GvENAME(cGVOP->op_gv));
2338 SETERRNO(EBADF,RMS$_IFI);
2347 sv_setpv(statname, SvPV(sv, na));
2349 i = open(SvPV(sv, na), O_RDONLY, 0);
2351 i = open(SvPV(sv, na), 0);
2354 if (dowarn && strchr(SvPV(sv, na), '\n'))
2355 warn(warn_nl, "open");
2358 laststatval = Fstat(i, &statcache);
2359 if (laststatval < 0)
2361 len = read(i, tbuf, 512);
2364 if (S_ISDIR(statcache.st_mode) && op->op_type == OP_FTTEXT)
2365 RETPUSHNO; /* special case NFS directories */
2366 RETPUSHYES; /* null file is anything */
2371 /* now scan s to look for textiness */
2372 /* XXX ASCII dependent code */
2374 for (i = 0; i < len; i++, s++) {
2375 if (!*s) { /* null never allowed in text */
2382 *s != '\n' && *s != '\r' && *s != '\b' &&
2383 *s != '\t' && *s != '\f' && *s != 27)
2387 if ((odd * 3 > len) == (op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
2395 return pp_fttext(ARGS);
2410 if (!tmps || !*tmps) {
2411 svp = hv_fetch(GvHVn(envgv), "HOME", 4, FALSE);
2413 tmps = SvPV(*svp, na);
2415 if (!tmps || !*tmps) {
2416 svp = hv_fetch(GvHVn(envgv), "LOGDIR", 6, FALSE);
2418 tmps = SvPV(*svp, na);
2420 TAINT_PROPER("chdir");
2421 PUSHi( chdir(tmps) >= 0 );
2423 /* Clear the DEFAULT element of ENV so we'll get the new value
2425 hv_delete(GvHVn(envgv),"DEFAULT",7,G_DISCARD);
2432 dSP; dMARK; dTARGET;
2435 value = (I32)apply(op->op_type, MARK, SP);
2440 DIE(no_func, "Unsupported function chown");
2450 TAINT_PROPER("chroot");
2451 PUSHi( chroot(tmps) >= 0 );
2454 DIE(no_func, "chroot");
2460 dSP; dMARK; dTARGET;
2462 value = (I32)apply(op->op_type, MARK, SP);
2470 dSP; dMARK; dTARGET;
2472 value = (I32)apply(op->op_type, MARK, SP);
2480 dSP; dMARK; dTARGET;
2482 value = (I32)apply(op->op_type, MARK, SP);
2494 char *tmps = SvPV(TOPs, na);
2495 TAINT_PROPER("rename");
2497 anum = rename(tmps, tmps2);
2499 if (!(anum = Stat(tmps, &statbuf))) {
2500 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
2503 if (euid || Stat(tmps2, &statbuf) < 0 || !S_ISDIR(statbuf.st_mode))
2504 (void)UNLINK(tmps2);
2505 if (!(anum = link(tmps, tmps2)))
2506 anum = UNLINK(tmps);
2519 char *tmps = SvPV(TOPs, na);
2520 TAINT_PROPER("link");
2521 SETi( link(tmps, tmps2) >= 0 );
2523 DIE(no_func, "Unsupported function link");
2533 char *tmps = SvPV(TOPs, na);
2534 TAINT_PROPER("symlink");
2535 SETi( symlink(tmps, tmps2) >= 0 );
2538 DIE(no_func, "symlink");
2549 len = readlink(tmps, buf, sizeof buf);
2557 RETSETUNDEF; /* just pretend it's a normal file */
2561 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
2563 dooneliner(cmd, filename)
2569 *save_filename = filename;
2575 for (s = mybuf+strlen(mybuf); *filename; ) {
2580 myfp = my_popen(mybuf, "r");
2583 /* Need to save/restore 'rs' ?? */
2584 s = sv_gets(tmpsv, myfp, 0);
2585 (void)my_pclose(myfp);
2587 for (errno = 1; errno < sys_nerr; errno++) {
2588 #ifdef HAS_SYS_ERRLIST
2589 if (instr(mybuf, sys_errlist[errno])) /* you don't see this */
2592 char *errmsg; /* especially if it isn't there */
2595 (errmsg = strerror(errno)) ? errmsg : "NoErRoR"))
2601 #define EACCES EPERM
2603 if (instr(mybuf, "cannot make"))
2604 SETERRNO(EEXIST,RMS$_FEX);
2605 else if (instr(mybuf, "existing file"))
2606 SETERRNO(EEXIST,RMS$_FEX);
2607 else if (instr(mybuf, "ile exists"))
2608 SETERRNO(EEXIST,RMS$_FEX);
2609 else if (instr(mybuf, "non-exist"))
2610 SETERRNO(ENOENT,RMS$_FNF);
2611 else if (instr(mybuf, "does not exist"))
2612 SETERRNO(ENOENT,RMS$_FNF);
2613 else if (instr(mybuf, "not empty"))
2614 SETERRNO(EBUSY,SS$_DEVOFFLINE);
2615 else if (instr(mybuf, "cannot access"))
2616 SETERRNO(EACCES,RMS$_PRV);
2618 SETERRNO(EPERM,RMS$_PRV);
2621 else { /* some mkdirs return no failure indication */
2622 anum = (Stat(save_filename, &statbuf) >= 0);
2623 if (op->op_type == OP_RMDIR)
2628 SETERRNO(EACCES,RMS$_PRV); /* a guess */
2644 char *tmps = SvPV(TOPs, na);
2646 TAINT_PROPER("mkdir");
2648 SETi( mkdir(tmps, mode) >= 0 );
2650 SETi( dooneliner("mkdir", tmps) );
2651 oldumask = umask(0);
2653 chmod(tmps, (mode & ~oldumask) & 0777);
2664 TAINT_PROPER("rmdir");
2666 XPUSHi( rmdir(tmps) >= 0 );
2668 XPUSHi( dooneliner("rmdir", tmps) );
2673 /* Directory calls. */
2678 #if defined(Direntry_t) && defined(HAS_READDIR)
2679 char *dirname = POPp;
2681 register IO *io = GvIOn(gv);
2687 closedir(IoDIRP(io));
2688 if (!(IoDIRP(io) = opendir(dirname)))
2694 SETERRNO(EBADF,RMS$_DIR);
2697 DIE(no_dir_func, "opendir");
2704 #if defined(Direntry_t) && defined(HAS_READDIR)
2706 Direntry_t *readdir _((DIR *));
2708 register Direntry_t *dp;
2710 register IO *io = GvIOn(gv);
2712 if (!io || !IoDIRP(io))
2715 if (GIMME == G_ARRAY) {
2717 while (dp = (Direntry_t *)readdir(IoDIRP(io))) {
2719 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2721 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2726 if (!(dp = (Direntry_t *)readdir(IoDIRP(io))))
2729 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2731 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2738 SETERRNO(EBADF,RMS$_ISI);
2739 if (GIMME == G_ARRAY)
2744 DIE(no_dir_func, "readdir");
2751 #if defined(HAS_TELLDIR) || defined(telldir)
2752 #if !defined(telldir) && !defined(HAS_TELLDIR_PROTOTYPE)
2753 long telldir _((DIR *));
2756 register IO *io = GvIOn(gv);
2758 if (!io || !IoDIRP(io))
2761 PUSHi( telldir(IoDIRP(io)) );
2765 SETERRNO(EBADF,RMS$_ISI);
2768 DIE(no_dir_func, "telldir");
2775 #if defined(HAS_SEEKDIR) || defined(seekdir)
2778 register IO *io = GvIOn(gv);
2780 if (!io || !IoDIRP(io))
2783 (void)seekdir(IoDIRP(io), along);
2788 SETERRNO(EBADF,RMS$_ISI);
2791 DIE(no_dir_func, "seekdir");
2798 #if defined(HAS_REWINDDIR) || defined(rewinddir)
2800 register IO *io = GvIOn(gv);
2802 if (!io || !IoDIRP(io))
2805 (void)rewinddir(IoDIRP(io));
2809 SETERRNO(EBADF,RMS$_ISI);
2812 DIE(no_dir_func, "rewinddir");
2819 #if defined(Direntry_t) && defined(HAS_READDIR)
2821 register IO *io = GvIOn(gv);
2823 if (!io || !IoDIRP(io))
2826 #ifdef VOID_CLOSEDIR
2827 closedir(IoDIRP(io));
2829 if (closedir(IoDIRP(io)) < 0) {
2830 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
2839 SETERRNO(EBADF,RMS$_IFI);
2842 DIE(no_dir_func, "closedir");
2846 /* Process control. */
2861 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
2862 sv_setiv(GvSV(tmpgv), (I32)getpid());
2863 hv_clear(pidstatus); /* no kids, so don't wait for 'em */
2868 DIE(no_func, "Unsupported function fork");
2881 childpid = wait(&argflags);
2883 pidgone(childpid, argflags);
2884 value = (I32)childpid;
2885 statusvalue = FIXSTATUS(argflags);
2889 DIE(no_func, "Unsupported function wait");
2904 childpid = wait4pid(childpid, &argflags, optype);
2905 value = (I32)childpid;
2906 statusvalue = FIXSTATUS(argflags);
2910 DIE(no_func, "Unsupported function wait");
2916 dSP; dMARK; dORIGMARK; dTARGET;
2921 Sigsave_t ihand,qhand; /* place to save signals during system() */
2923 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2)
2924 if (SP - MARK == 1) {
2926 char *junk = SvPV(TOPs, na);
2928 TAINT_PROPER("system");
2931 while ((childpid = vfork()) == -1) {
2932 if (errno != EAGAIN) {
2941 rsignal_save(SIGINT, SIG_IGN, &ihand);
2942 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
2944 result = wait4pid(childpid, &status, 0);
2945 } while (result == -1 && errno == EINTR);
2946 (void)rsignal_restore(SIGINT, &ihand);
2947 (void)rsignal_restore(SIGQUIT, &qhand);
2948 statusvalue = FIXSTATUS(status);
2952 value = (I32)((unsigned int)status & 0xffff);
2954 do_execfree(); /* free any memory child malloced on vfork */
2959 if (op->op_flags & OPf_STACKED) {
2960 SV *really = *++MARK;
2961 value = (I32)do_aexec(really, MARK, SP);
2963 else if (SP - MARK != 1)
2964 value = (I32)do_aexec(Nullsv, MARK, SP);
2966 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
2969 #else /* ! FORK or VMS or OS/2 */
2970 if (op->op_flags & OPf_STACKED) {
2971 SV *really = *++MARK;
2972 value = (I32)do_aspawn(really, MARK, SP);
2974 else if (SP - MARK != 1)
2975 value = (I32)do_aspawn(Nullsv, MARK, SP);
2977 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), na));
2979 statusvalue = FIXSTATUS(value);
2983 #endif /* !FORK or VMS */
2989 dSP; dMARK; dORIGMARK; dTARGET;
2992 if (op->op_flags & OPf_STACKED) {
2993 SV *really = *++MARK;
2994 value = (I32)do_aexec(really, MARK, SP);
2996 else if (SP - MARK != 1)
2998 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3000 value = (I32)do_aexec(Nullsv, MARK, SP);
3004 char *junk = SvPV(*SP, na);
3006 TAINT_PROPER("exec");
3009 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), na));
3011 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
3021 dSP; dMARK; dTARGET;
3024 value = (I32)apply(op->op_type, MARK, SP);
3029 DIE(no_func, "Unsupported function kill");
3037 XPUSHi( getppid() );
3040 DIE(no_func, "getppid");
3056 value = (I32)BSD_GETPGRP(pid);
3059 DIE("POSIX getpgrp can't take an argument");
3060 value = (I32)getpgrp();
3065 DIE(no_func, "getpgrp()");
3084 TAINT_PROPER("setpgrp");
3086 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3088 if ((pgrp != 0) || (pid != 0)) {
3089 DIE("POSIX setpgrp can't take an argument");
3091 SETi( setpgrp() >= 0 );
3092 #endif /* USE_BSDPGRP */
3095 DIE(no_func, "setpgrp()");
3104 #ifdef HAS_GETPRIORITY
3107 SETi( getpriority(which, who) );
3110 DIE(no_func, "getpriority()");
3120 #ifdef HAS_SETPRIORITY
3124 TAINT_PROPER("setpriority");
3125 SETi( setpriority(which, who, niceval) >= 0 );
3128 DIE(no_func, "setpriority()");
3138 XPUSHn( time(Null(Time_t*)) );
3140 XPUSHi( time(Null(Time_t*)) );
3145 /* XXX The POSIX name is CLK_TCK; it is to be preferred
3146 to HZ. Probably. For now, assume that if the system
3147 defines HZ, it does so correctly. (Will this break
3149 Probably we ought to use _sysconf(_SC_CLK_TCK), if
3150 it's supported. --AD 9/96.
3166 DIE("times not implemented");
3171 (void)times(×buf);
3173 (void)times((tbuffer_t *)×buf); /* time.h uses different name for */
3174 /* struct tms, though same data */
3178 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_utime)/HZ)));
3179 if (GIMME == G_ARRAY) {
3180 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_stime)/HZ)));
3181 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cutime)/HZ)));
3182 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cstime)/HZ)));
3185 #endif /* HAS_TIMES */
3190 return pp_gmtime(ARGS);
3198 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
3199 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
3200 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
3206 when = (Time_t)SvNVx(POPs);
3208 when = (Time_t)SvIVx(POPs);
3211 if (op->op_type == OP_LOCALTIME)
3212 tmbuf = localtime(&when);
3214 tmbuf = gmtime(&when);
3218 if (GIMME != G_ARRAY) {
3223 sprintf(mybuf, "%s %s %2d %02d:%02d:%02d %d",
3224 dayname[tmbuf->tm_wday],
3225 monname[tmbuf->tm_mon],
3230 tmbuf->tm_year + 1900);
3231 PUSHp(mybuf, strlen(mybuf));
3234 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3235 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3236 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3237 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3238 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3239 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3240 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3241 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3242 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3253 anum = alarm((unsigned int)anum);
3260 DIE(no_func, "Unsupported function alarm");
3271 (void)time(&lasttime);
3276 sleep((unsigned int)duration);
3279 XPUSHi(when - lasttime);
3283 /* Shared memory. */
3287 return pp_semget(ARGS);
3292 return pp_semctl(ARGS);
3297 return pp_shmwrite(ARGS);
3302 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3303 dSP; dMARK; dTARGET;
3304 I32 value = (I32)(do_shmio(op->op_type, MARK, SP) >= 0);
3309 return pp_semget(ARGS);
3313 /* Message passing. */
3317 return pp_semget(ARGS);
3322 return pp_semctl(ARGS);
3327 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3328 dSP; dMARK; dTARGET;
3329 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3334 return pp_semget(ARGS);
3340 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3341 dSP; dMARK; dTARGET;
3342 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3347 return pp_semget(ARGS);
3355 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3356 dSP; dMARK; dTARGET;
3357 int anum = do_ipcget(op->op_type, MARK, SP);
3364 DIE("System V IPC is not implemented on this machine");
3370 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3371 dSP; dMARK; dTARGET;
3372 int anum = do_ipcctl(op->op_type, MARK, SP);
3380 PUSHp("0 but true",10);
3384 return pp_semget(ARGS);
3390 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3391 dSP; dMARK; dTARGET;
3392 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3397 return pp_semget(ARGS);
3401 /* Get system info. */
3406 return pp_ghostent(ARGS);
3408 DIE(no_sock_func, "gethostbyname");
3415 return pp_ghostent(ARGS);
3417 DIE(no_sock_func, "gethostbyaddr");
3425 I32 which = op->op_type;
3426 register char **elem;
3428 struct hostent *gethostbyname();
3429 struct hostent *gethostbyaddr();
3430 #ifdef HAS_GETHOSTENT
3431 struct hostent *gethostent();
3433 struct hostent *hent;
3437 if (which == OP_GHBYNAME) {
3438 hent = gethostbyname(POPp);
3440 else if (which == OP_GHBYADDR) {
3441 int addrtype = POPi;
3444 char *addr = SvPV(addrsv, addrlen);
3446 hent = gethostbyaddr(addr, addrlen, addrtype);
3449 #ifdef HAS_GETHOSTENT
3450 hent = gethostent();
3452 DIE("gethostent not implemented");
3455 #ifdef HOST_NOT_FOUND
3457 statusvalue = FIXSTATUS(h_errno);
3460 if (GIMME != G_ARRAY) {
3461 PUSHs(sv = sv_newmortal());
3463 if (which == OP_GHBYNAME) {
3465 sv_setpvn(sv, hent->h_addr, hent->h_length);
3468 sv_setpv(sv, (char*)hent->h_name);
3474 PUSHs(sv = sv_mortalcopy(&sv_no));
3475 sv_setpv(sv, (char*)hent->h_name);
3476 PUSHs(sv = sv_mortalcopy(&sv_no));
3477 for (elem = hent->h_aliases; elem && *elem; elem++) {
3478 sv_catpv(sv, *elem);
3480 sv_catpvn(sv, " ", 1);
3482 PUSHs(sv = sv_mortalcopy(&sv_no));
3483 sv_setiv(sv, (I32)hent->h_addrtype);
3484 PUSHs(sv = sv_mortalcopy(&sv_no));
3485 len = hent->h_length;
3486 sv_setiv(sv, (I32)len);
3488 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3489 XPUSHs(sv = sv_mortalcopy(&sv_no));
3490 sv_setpvn(sv, *elem, len);
3493 PUSHs(sv = sv_mortalcopy(&sv_no));
3495 sv_setpvn(sv, hent->h_addr, len);
3500 DIE(no_sock_func, "gethostent");
3507 return pp_gnetent(ARGS);
3509 DIE(no_sock_func, "getnetbyname");
3516 return pp_gnetent(ARGS);
3518 DIE(no_sock_func, "getnetbyaddr");
3526 I32 which = op->op_type;
3527 register char **elem;
3529 struct netent *getnetbyname();
3530 struct netent *getnetbyaddr();
3531 struct netent *getnetent();
3532 struct netent *nent;
3534 if (which == OP_GNBYNAME)
3535 nent = getnetbyname(POPp);
3536 else if (which == OP_GNBYADDR) {
3537 int addrtype = POPi;
3538 unsigned long addr = U_L(POPn);
3539 nent = getnetbyaddr((long)addr, addrtype);
3545 if (GIMME != G_ARRAY) {
3546 PUSHs(sv = sv_newmortal());
3548 if (which == OP_GNBYNAME)
3549 sv_setiv(sv, (I32)nent->n_net);
3551 sv_setpv(sv, nent->n_name);
3557 PUSHs(sv = sv_mortalcopy(&sv_no));
3558 sv_setpv(sv, nent->n_name);
3559 PUSHs(sv = sv_mortalcopy(&sv_no));
3560 for (elem = nent->n_aliases; *elem; elem++) {
3561 sv_catpv(sv, *elem);
3563 sv_catpvn(sv, " ", 1);
3565 PUSHs(sv = sv_mortalcopy(&sv_no));
3566 sv_setiv(sv, (I32)nent->n_addrtype);
3567 PUSHs(sv = sv_mortalcopy(&sv_no));
3568 sv_setiv(sv, (I32)nent->n_net);
3573 DIE(no_sock_func, "getnetent");
3580 return pp_gprotoent(ARGS);
3582 DIE(no_sock_func, "getprotobyname");
3589 return pp_gprotoent(ARGS);
3591 DIE(no_sock_func, "getprotobynumber");
3599 I32 which = op->op_type;
3600 register char **elem;
3602 struct protoent *getprotobyname();
3603 struct protoent *getprotobynumber();
3604 struct protoent *getprotoent();
3605 struct protoent *pent;
3607 if (which == OP_GPBYNAME)
3608 pent = getprotobyname(POPp);
3609 else if (which == OP_GPBYNUMBER)
3610 pent = getprotobynumber(POPi);
3612 pent = getprotoent();
3615 if (GIMME != G_ARRAY) {
3616 PUSHs(sv = sv_newmortal());
3618 if (which == OP_GPBYNAME)
3619 sv_setiv(sv, (I32)pent->p_proto);
3621 sv_setpv(sv, pent->p_name);
3627 PUSHs(sv = sv_mortalcopy(&sv_no));
3628 sv_setpv(sv, pent->p_name);
3629 PUSHs(sv = sv_mortalcopy(&sv_no));
3630 for (elem = pent->p_aliases; *elem; elem++) {
3631 sv_catpv(sv, *elem);
3633 sv_catpvn(sv, " ", 1);
3635 PUSHs(sv = sv_mortalcopy(&sv_no));
3636 sv_setiv(sv, (I32)pent->p_proto);
3641 DIE(no_sock_func, "getprotoent");
3648 return pp_gservent(ARGS);
3650 DIE(no_sock_func, "getservbyname");
3657 return pp_gservent(ARGS);
3659 DIE(no_sock_func, "getservbyport");
3667 I32 which = op->op_type;
3668 register char **elem;
3670 struct servent *getservbyname();
3671 struct servent *getservbynumber();
3672 struct servent *getservent();
3673 struct servent *sent;
3675 if (which == OP_GSBYNAME) {
3679 if (proto && !*proto)
3682 sent = getservbyname(name, proto);
3684 else if (which == OP_GSBYPORT) {
3686 unsigned short port = POPu;
3691 sent = getservbyport(port, proto);
3694 sent = getservent();
3697 if (GIMME != G_ARRAY) {
3698 PUSHs(sv = sv_newmortal());
3700 if (which == OP_GSBYNAME) {
3702 sv_setiv(sv, (I32)ntohs(sent->s_port));
3704 sv_setiv(sv, (I32)(sent->s_port));
3708 sv_setpv(sv, sent->s_name);
3714 PUSHs(sv = sv_mortalcopy(&sv_no));
3715 sv_setpv(sv, sent->s_name);
3716 PUSHs(sv = sv_mortalcopy(&sv_no));
3717 for (elem = sent->s_aliases; *elem; elem++) {
3718 sv_catpv(sv, *elem);
3720 sv_catpvn(sv, " ", 1);
3722 PUSHs(sv = sv_mortalcopy(&sv_no));
3724 sv_setiv(sv, (I32)ntohs(sent->s_port));
3726 sv_setiv(sv, (I32)(sent->s_port));
3728 PUSHs(sv = sv_mortalcopy(&sv_no));
3729 sv_setpv(sv, sent->s_proto);
3734 DIE(no_sock_func, "getservent");
3745 DIE(no_sock_func, "sethostent");
3756 DIE(no_sock_func, "setnetent");
3767 DIE(no_sock_func, "setprotoent");
3778 DIE(no_sock_func, "setservent");
3790 DIE(no_sock_func, "endhostent");
3802 DIE(no_sock_func, "endnetent");
3814 DIE(no_sock_func, "endprotoent");
3826 DIE(no_sock_func, "endservent");
3833 return pp_gpwent(ARGS);
3835 DIE(no_func, "getpwnam");
3842 return pp_gpwent(ARGS);
3844 DIE(no_func, "getpwuid");
3852 I32 which = op->op_type;
3854 struct passwd *pwent;
3856 if (which == OP_GPWNAM)
3857 pwent = getpwnam(POPp);
3858 else if (which == OP_GPWUID)
3859 pwent = getpwuid(POPi);
3861 pwent = (struct passwd *)getpwent();
3864 if (GIMME != G_ARRAY) {
3865 PUSHs(sv = sv_newmortal());
3867 if (which == OP_GPWNAM)
3868 sv_setiv(sv, (I32)pwent->pw_uid);
3870 sv_setpv(sv, pwent->pw_name);
3876 PUSHs(sv = sv_mortalcopy(&sv_no));
3877 sv_setpv(sv, pwent->pw_name);
3878 PUSHs(sv = sv_mortalcopy(&sv_no));
3879 sv_setpv(sv, pwent->pw_passwd);
3880 PUSHs(sv = sv_mortalcopy(&sv_no));
3881 sv_setiv(sv, (I32)pwent->pw_uid);
3882 PUSHs(sv = sv_mortalcopy(&sv_no));
3883 sv_setiv(sv, (I32)pwent->pw_gid);
3884 PUSHs(sv = sv_mortalcopy(&sv_no));
3886 sv_setiv(sv, (I32)pwent->pw_change);
3889 sv_setiv(sv, (I32)pwent->pw_quota);
3892 sv_setpv(sv, pwent->pw_age);
3896 PUSHs(sv = sv_mortalcopy(&sv_no));
3898 sv_setpv(sv, pwent->pw_class);
3901 sv_setpv(sv, pwent->pw_comment);
3904 PUSHs(sv = sv_mortalcopy(&sv_no));
3905 sv_setpv(sv, pwent->pw_gecos);
3906 PUSHs(sv = sv_mortalcopy(&sv_no));
3907 sv_setpv(sv, pwent->pw_dir);
3908 PUSHs(sv = sv_mortalcopy(&sv_no));
3909 sv_setpv(sv, pwent->pw_shell);
3911 PUSHs(sv = sv_mortalcopy(&sv_no));
3912 sv_setiv(sv, (I32)pwent->pw_expire);
3917 DIE(no_func, "getpwent");
3928 DIE(no_func, "setpwent");
3939 DIE(no_func, "endpwent");
3946 return pp_ggrent(ARGS);
3948 DIE(no_func, "getgrnam");
3955 return pp_ggrent(ARGS);
3957 DIE(no_func, "getgrgid");
3965 I32 which = op->op_type;
3966 register char **elem;
3968 struct group *grent;
3970 if (which == OP_GGRNAM)
3971 grent = (struct group *)getgrnam(POPp);
3972 else if (which == OP_GGRGID)
3973 grent = (struct group *)getgrgid(POPi);
3975 grent = (struct group *)getgrent();
3978 if (GIMME != G_ARRAY) {
3979 PUSHs(sv = sv_newmortal());
3981 if (which == OP_GGRNAM)
3982 sv_setiv(sv, (I32)grent->gr_gid);
3984 sv_setpv(sv, grent->gr_name);
3990 PUSHs(sv = sv_mortalcopy(&sv_no));
3991 sv_setpv(sv, grent->gr_name);
3992 PUSHs(sv = sv_mortalcopy(&sv_no));
3993 sv_setpv(sv, grent->gr_passwd);
3994 PUSHs(sv = sv_mortalcopy(&sv_no));
3995 sv_setiv(sv, (I32)grent->gr_gid);
3996 PUSHs(sv = sv_mortalcopy(&sv_no));
3997 for (elem = grent->gr_mem; *elem; elem++) {
3998 sv_catpv(sv, *elem);
4000 sv_catpvn(sv, " ", 1);
4006 DIE(no_func, "getgrent");
4017 DIE(no_func, "setgrent");
4028 DIE(no_func, "endgrent");
4038 if (!(tmps = getlogin()))
4040 PUSHp(tmps, strlen(tmps));
4043 DIE(no_func, "getlogin");
4047 /* Miscellaneous. */
4052 dSP; dMARK; dORIGMARK; dTARGET;
4053 register I32 items = SP - MARK;
4054 unsigned long a[20];
4060 while (++MARK <= SP) {
4061 if (SvTAINTED(*MARK)) {
4067 TAINT_PROPER("syscall");
4070 /* This probably won't work on machines where sizeof(long) != sizeof(int)
4071 * or where sizeof(long) != sizeof(char*). But such machines will
4072 * not likely have syscall implemented either, so who cares?
4074 while (++MARK <= SP) {
4075 if (SvNIOK(*MARK) || !i)
4076 a[i++] = SvIV(*MARK);
4077 else if (*MARK == &sv_undef)
4080 a[i++] = (unsigned long)SvPV_force(*MARK, na);
4086 DIE("Too many args to syscall");
4088 DIE("Too few args to syscall");
4090 retval = syscall(a[0]);
4093 retval = syscall(a[0],a[1]);
4096 retval = syscall(a[0],a[1],a[2]);
4099 retval = syscall(a[0],a[1],a[2],a[3]);
4102 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
4105 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
4108 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
4111 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
4115 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
4118 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
4121 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4125 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4129 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4133 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
4134 a[10],a[11],a[12],a[13]);
4136 #endif /* atarist */
4142 DIE(no_func, "syscall");
4146 #ifdef FCNTL_EMULATE_FLOCK
4148 /* XXX Emulate flock() with fcntl().
4149 What's really needed is a good file locking module.
4153 fcntl_emulate_flock(fd, operation)
4159 switch (operation & ~LOCK_NB) {
4161 flock.l_type = F_RDLCK;
4164 flock.l_type = F_WRLCK;
4167 flock.l_type = F_UNLCK;
4173 flock.l_whence = SEEK_SET;
4174 flock.l_start = flock.l_len = 0L;
4176 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
4179 #endif /* FCNTL_EMULATE_FLOCK */
4181 #ifdef LOCKF_EMULATE_FLOCK
4183 /* XXX Emulate flock() with lockf(). This is just to increase
4184 portability of scripts. The calls are not completely
4185 interchangeable. What's really needed is a good file
4189 /* The lockf() constants might have been defined in <unistd.h>.
4190 Unfortunately, <unistd.h> causes troubles on some mixed
4191 (BSD/POSIX) systems, such as SunOS 4.1.3.
4193 Further, the lockf() constants aren't POSIX, so they might not be
4194 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
4195 just stick in the SVID values and be done with it. Sigh.
4199 # define F_ULOCK 0 /* Unlock a previously locked region */
4202 # define F_LOCK 1 /* Lock a region for exclusive use */
4205 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
4208 # define F_TEST 3 /* Test a region for other processes locks */
4212 lockf_emulate_flock (fd, operation)
4217 switch (operation) {
4219 /* LOCK_SH - get a shared lock */
4221 /* LOCK_EX - get an exclusive lock */
4223 i = lockf (fd, F_LOCK, 0);
4226 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
4227 case LOCK_SH|LOCK_NB:
4228 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
4229 case LOCK_EX|LOCK_NB:
4230 i = lockf (fd, F_TLOCK, 0);
4232 if ((errno == EAGAIN) || (errno == EACCES))
4233 errno = EWOULDBLOCK;
4236 /* LOCK_UN - unlock (non-blocking is a no-op) */
4238 case LOCK_UN|LOCK_NB:
4239 i = lockf (fd, F_ULOCK, 0);
4242 /* Default - can't decipher operation */
4251 #endif /* LOCKF_EMULATE_FLOCK */