3 * Copyright (c) 1991-2002, 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 * "Far below them they saw the white waters pour into a foaming bowl, and
12 * then swirl darkly about a deep oval basin in the rocks, until they found
13 * their way out again through a narrow gate, and flowed away, fuming and
14 * chattering, into calmer and more level reaches."
18 #define PERL_IN_DOIO_C
21 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
30 # ifndef HAS_SHMAT_PROTOTYPE
31 extern Shmat_t shmat (int, char *, int);
37 # if defined(_MSC_VER) || defined(__MINGW32__)
38 # include <sys/utime.h>
45 # define OPEN_EXCL O_EXCL
50 #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
55 Perl_do_open(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
56 int rawmode, int rawperm, PerlIO *supplied_fp)
58 return do_openn(gv, name, len, as_raw, rawmode, rawperm,
59 supplied_fp, (SV **) NULL, 0);
63 Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
64 int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs,
67 return do_openn(gv, name, len, as_raw, rawmode, rawperm,
68 supplied_fp, &svs, 1);
72 Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
73 int rawmode, int rawperm, PerlIO *supplied_fp, SV **svp,
76 register IO *io = GvIOn(gv);
77 PerlIO *saveifp = Nullfp;
78 PerlIO *saveofp = Nullfp;
80 char savetype = IoTYPE_CLOSED;
85 bool was_fdopen = FALSE;
86 bool in_raw = 0, in_crlf = 0, out_raw = 0, out_crlf = 0;
88 char mode[8]; /* stdio file mode ("r\0", "rb\0", "r+b\0" etc.) */
91 Zero(mode,sizeof(mode),char);
92 PL_forkprocess = 1; /* assume true if no fork */
94 /* Collect default raw/crlf info from the op */
95 if (PL_op && PL_op->op_type == OP_OPEN) {
96 /* set up disciplines */
97 U8 flags = PL_op->op_private;
98 in_raw = (flags & OPpOPEN_IN_RAW);
99 in_crlf = (flags & OPpOPEN_IN_CRLF);
100 out_raw = (flags & OPpOPEN_OUT_RAW);
101 out_crlf = (flags & OPpOPEN_OUT_CRLF);
104 /* If currently open - close before we re-open */
106 fd = PerlIO_fileno(IoIFP(io));
107 if (IoTYPE(io) == IoTYPE_STD) {
108 /* This is a clone of one of STD* handles */
111 else if (fd >= 0 && fd <= PL_maxsysfd) {
112 /* This is one of the original STD* handles */
115 savetype = IoTYPE(io);
119 else if (IoTYPE(io) == IoTYPE_PIPE)
120 result = PerlProc_pclose(IoIFP(io));
121 else if (IoIFP(io) != IoOFP(io)) {
123 result = PerlIO_close(IoOFP(io));
124 PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */
127 result = PerlIO_close(IoIFP(io));
130 result = PerlIO_close(IoIFP(io));
131 if (result == EOF && fd > PL_maxsysfd) {
132 /* Why is this not Perl_warn*() call ? */
133 PerlIO_printf(Perl_error_log,
134 "Warning: unable to close filehandle %s properly.\n",
137 IoOFP(io) = IoIFP(io) = Nullfp;
141 /* sysopen style args, i.e. integer mode and permissions */
145 #ifdef O_APPEND /* Not fully portable. */
148 #ifdef O_TRUNC /* Not fully portable. */
153 O_WRONLY|O_RDWR|O_CREAT|appendtrunc;
157 Perl_croak(aTHX_ "panic: sysopen with multiple args");
165 It might be (in OS/390 and Mac OS Classic it is)
171 This means that simple & with O_RDWR would look
172 like O_RDONLY is present. Therefore we have to
175 if ((ismodifying = (rawmode & modifyingmode))) {
176 if ((ismodifying & O_WRONLY) == O_WRONLY ||
177 (ismodifying & O_RDWR) == O_RDWR ||
178 (ismodifying & (O_CREAT|appendtrunc)))
179 TAINT_PROPER("sysopen");
181 mode[ix++] = '#'; /* Marker to openn to use numeric "sysopen" */
183 #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE)
184 rawmode |= O_LARGEFILE; /* Transparently largefiley. */
187 IoTYPE(io) = PerlIO_intmode2str(rawmode, &mode[ix], &writing);
189 namesv = sv_2mortal(newSVpvn(name,strlen(name)));
193 fp = PerlIO_openn(aTHX_ type, mode, -1, rawmode, rawperm, NULL, num_svs, svp);
196 /* Regular (non-sys) open */
201 PerlIO *that_fp = NULL;
203 type = savepvn(name, len);
207 /* Lose leading and trailing white space */
209 for (; isSPACE(*type); type++) ;
210 while (tend > type && isSPACE(tend[-1]))
214 /* New style explict name, type is just mode and discipline/layer info */
217 if (SvROK(*svp) && !strchr(name,'&')) {
219 Perl_warner(aTHX_ packWARN(WARN_IO),
220 "Can't open a reference");
221 SETERRNO(EINVAL, LIB$_INVARG);
224 #endif /* USE_STDIO */
225 name = SvOK(*svp) ? SvPV(*svp, l) : "";
227 name = savepvn(name, len);
235 if ((*type == IoTYPE_RDWR) && /* scary */
236 (*(type+1) == IoTYPE_RDONLY || *(type+1) == IoTYPE_WRONLY) &&
237 ((!num_svs || (tend > type+1 && tend[-1] != IoTYPE_PIPE)))) {
238 TAINT_PROPER("open");
243 if (*type == IoTYPE_PIPE) {
245 if (type[1] != IoTYPE_STD) {
247 Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname);
252 for (type++; isSPACE(*type); type++) ;
258 /* command is missing 19990114 */
259 if (ckWARN(WARN_PIPE))
260 Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open");
264 if (strNE(name,"-") || num_svs)
266 TAINT_PROPER("piped open");
267 if (!num_svs && name[len-1] == '|') {
269 if (ckWARN(WARN_PIPE))
270 Perl_warner(aTHX_ packWARN(WARN_PIPE), "Can't open bidirectional pipe");
279 fp = PerlProc_popen_list(mode, num_svs, svp);
282 fp = PerlProc_popen(name,mode);
285 else if (*type == IoTYPE_WRONLY) {
286 TAINT_PROPER("open");
288 if (*type == IoTYPE_WRONLY) {
289 /* Two IoTYPE_WRONLYs in a row make for an IoTYPE_APPEND. */
290 mode[0] = IoTYPE(io) = IoTYPE_APPEND;
305 dodup = PERLIO_DUP_FD;
311 if (!num_svs && !*type && supplied_fp) {
312 /* "<+&" etc. is used by typemaps */
317 Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io));
319 if (num_svs && SvIOK(*svp)) {
322 else if (isDIGIT(*type)) {
324 for (; isSPACE(*type); type++) ;
330 thatio = sv_2io(*svp);
335 for (; isSPACE(*type); type++) ;
336 thatgv = gv_fetchpv(type,FALSE,SVt_PVIO);
337 thatio = GvIO(thatgv);
341 SETERRNO(EINVAL,SS$_IVCHAN);
345 if ((that_fp = IoIFP(thatio))) {
346 /* Flush stdio buffer before dup. --mjd
347 * Unfortunately SEEK_CURing 0 seems to
348 * be optimized away on most platforms;
349 * only Solaris and Linux seem to flush
352 /* sfio fails to clear error on next
353 sfwrite, contrary to documentation.
355 if (PerlIO_seek(that_fp, 0, SEEK_CUR) == -1)
356 PerlIO_clearerr(that_fp);
358 /* On the other hand, do all platforms
359 * take gracefully to flushing a read-only
360 * filehandle? Perhaps we should do
361 * fsetpos(src)+fgetpos(dst)? --nik */
362 PerlIO_flush(that_fp);
363 fd = PerlIO_fileno(that_fp);
364 /* When dup()ing STDIN, STDOUT or STDERR
365 * explicitly set appropriate access mode */
366 if (that_fp == PerlIO_stdout()
367 || that_fp == PerlIO_stderr())
368 IoTYPE(io) = IoTYPE_WRONLY;
369 else if (that_fp == PerlIO_stdin())
370 IoTYPE(io) = IoTYPE_RDONLY;
371 /* When dup()ing a socket, say result is
373 else if (IoTYPE(thatio) == IoTYPE_SOCKET)
374 IoTYPE(io) = IoTYPE_SOCKET;
382 fp = PerlIO_fdupopen(aTHX_ that_fp, NULL, dodup);
386 fd = PerlLIO_dup(fd);
389 if (!(fp = PerlIO_openn(aTHX_ type,mode,fd,0,0,NULL,num_svs,svp))) {
398 for (; isSPACE(*type); type++) ;
399 if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) {
402 fp = PerlIO_stdout();
403 IoTYPE(io) = IoTYPE_STD;
405 Perl_croak(aTHX_ "More than one argument to '>%c' open",IoTYPE_STD);
410 namesv = sv_2mortal(newSVpvn(type,strlen(type)));
415 fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
419 else if (*type == IoTYPE_RDONLY) {
421 for (type++; isSPACE(*type); type++) ;
431 if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) {
435 IoTYPE(io) = IoTYPE_STD;
437 Perl_croak(aTHX_ "More than one argument to '<%c' open",IoTYPE_STD);
442 namesv = sv_2mortal(newSVpvn(type,strlen(type)));
447 fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
450 else if ((num_svs && type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) ||
451 (!num_svs && tend > type+1 && tend[-1] == IoTYPE_PIPE)) {
453 type += 2; /* skip over '-|' */
457 while (tend > type && isSPACE(tend[-1]))
460 for (; isSPACE(*type); type++) ;
465 /* command is missing 19990114 */
466 if (ckWARN(WARN_PIPE))
467 Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open");
471 if (strNE(name,"-") || num_svs)
473 TAINT_PROPER("piped open");
480 fp = PerlProc_popen_list(mode,num_svs,svp);
483 fp = PerlProc_popen(name,mode);
485 IoTYPE(io) = IoTYPE_PIPE;
491 IoTYPE(io) = IoTYPE_RDONLY;
493 for (; isSPACE(*name); name++) ;
499 if (strEQ(name,"-")) {
501 IoTYPE(io) = IoTYPE_STD;
505 namesv = sv_2mortal(newSVpvn(type,strlen(type)));
510 fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
515 if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == IoTYPE_RDONLY && strchr(name, '\n'))
516 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
520 if (ckWARN(WARN_IO)) {
521 if ((IoTYPE(io) == IoTYPE_RDONLY) &&
522 (fp == PerlIO_stdout() || fp == PerlIO_stderr())) {
523 Perl_warner(aTHX_ packWARN(WARN_IO),
524 "Filehandle STD%s opened only for input",
525 (fp == PerlIO_stdout()) ? "OUT" : "ERR");
527 else if ((IoTYPE(io) == IoTYPE_WRONLY) && fp == PerlIO_stdin()) {
528 Perl_warner(aTHX_ packWARN(WARN_IO),
529 "Filehandle STDIN opened only for output");
533 fd = PerlIO_fileno(fp);
534 /* If there is no fd (e.g. PerlIO::Scalar) assume it isn't a
535 * socket - this covers PerlIO::Scalar - otherwise unless we "know" the
536 * type probe for socket-ness.
538 if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD && fd >= 0) {
539 if (PerlLIO_fstat(fd,&PL_statbuf) < 0) {
540 /* If PerlIO claims to have fd we had better be able to fstat() it. */
541 (void) PerlIO_close(fp);
545 if (S_ISSOCK(PL_statbuf.st_mode))
546 IoTYPE(io) = IoTYPE_SOCKET; /* in case a socket was passed in to us */
550 !(PL_statbuf.st_mode & S_IFMT)
554 && IoTYPE(io) != IoTYPE_WRONLY /* Dups of STD* filehandles already have */
555 && IoTYPE(io) != IoTYPE_RDONLY /* type so they aren't marked as sockets */
556 ) { /* on OS's that return 0 on fstat()ed pipe */
558 Sock_size_t buflen = sizeof tmpbuf;
559 if (PerlSock_getsockname(fd, (struct sockaddr *)tmpbuf, &buflen) >= 0
560 || errno != ENOTSOCK)
561 IoTYPE(io) = IoTYPE_SOCKET; /* some OS's return 0 on fstat()ed socket */
562 /* but some return 0 for streams too, sigh */
564 #endif /* HAS_SOCKET */
565 #endif /* !PERL_MICRO */
569 * If this is a standard handle we discard all the layer stuff
570 * and just dup the fd into whatever was on the handle before !
573 if (saveifp) { /* must use old fp? */
574 /* If fd is less that PL_maxsysfd i.e. STDIN..STDERR
575 then dup the new fileno down
578 PerlIO_flush(saveofp); /* emulate PerlIO_close() */
579 if (saveofp != saveifp) { /* was a socket? */
580 PerlIO_close(saveofp);
584 /* Still a small can-of-worms here if (say) PerlIO::Scalar
585 is assigned to (say) STDOUT - for now let dup2() fail
586 and provide the error
588 if (PerlLIO_dup2(fd, savefd) < 0) {
589 (void)PerlIO_close(fp);
593 if (savefd != PerlIO_fileno(PerlIO_stdin())) {
594 char newname[FILENAME_MAX+1];
595 if (PerlIO_getname(fp, newname)) {
596 if (fd == PerlIO_fileno(PerlIO_stdout()))
597 Perl_vmssetuserlnm(aTHX_ "SYS$OUTPUT", newname);
598 if (fd == PerlIO_fileno(PerlIO_stderr()))
599 Perl_vmssetuserlnm(aTHX_ "SYS$ERROR", newname);
605 /* PL_fdpid isn't used on Windows, so avoid this useless work.
606 * XXX Probably the same for a lot of other places. */
612 sv = *av_fetch(PL_fdpid,fd,TRUE);
613 (void)SvUPGRADE(sv, SVt_IV);
616 sv = *av_fetch(PL_fdpid,savefd,TRUE);
617 (void)SvUPGRADE(sv, SVt_IV);
624 /* need to close fp without closing underlying fd */
625 int ofd = PerlIO_fileno(fp);
626 int dupfd = PerlLIO_dup(ofd);
628 PerlLIO_dup2(dupfd,ofd);
629 PerlLIO_close(dupfd);
636 fd = PerlIO_fileno(fp);
638 #if defined(HAS_FCNTL) && defined(F_SETFD)
640 int save_errno = errno;
641 fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */
647 IoFLAGS(io) &= ~IOf_NOLINE;
649 if (IoTYPE(io) == IoTYPE_SOCKET
650 || (IoTYPE(io) == IoTYPE_WRONLY && fd >= 0 && S_ISCHR(PL_statbuf.st_mode)) ) {
652 if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,mode,fd,0,0,NULL,0,svp))) {
666 IoTYPE(io) = savetype;
671 Perl_nextargv(pTHX_ register GV *gv)
674 #ifndef FLEXFILENAMES
683 PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO);
684 if (io && (IoFLAGS(io) & IOf_ARGV) && (IoFLAGS(io) & IOf_START)) {
685 IoFLAGS(io) &= ~IOf_START;
687 if (!PL_argvout_stack)
688 PL_argvout_stack = newAV();
689 av_push(PL_argvout_stack, SvREFCNT_inc(PL_defoutgv));
692 if (PL_filemode & (S_ISUID|S_ISGID)) {
693 PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */
695 (void)fchmod(PL_lastfd,PL_filemode);
697 (void)PerlLIO_chmod(PL_oldname,PL_filemode);
701 while (av_len(GvAV(gv)) >= 0) {
703 sv = av_shift(GvAV(gv));
705 sv_setsv(GvSV(gv),sv);
706 SvSETMAGIC(GvSV(gv));
707 PL_oldname = SvPVx(GvSV(gv), oldlen);
708 if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) {
710 TAINT_PROPER("inplace open");
711 if (oldlen == 1 && *PL_oldname == '-') {
712 setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO));
713 return IoIFP(GvIOp(gv));
715 #ifndef FLEXFILENAMES
716 filedev = PL_statbuf.st_dev;
717 fileino = PL_statbuf.st_ino;
719 PL_filemode = PL_statbuf.st_mode;
720 fileuid = PL_statbuf.st_uid;
721 filegid = PL_statbuf.st_gid;
722 if (!S_ISREG(PL_filemode)) {
723 if (ckWARN_d(WARN_INPLACE))
724 Perl_warner(aTHX_ packWARN(WARN_INPLACE),
725 "Can't do inplace edit: %s is not a regular file",
731 char *star = strchr(PL_inplace, '*');
733 char *begin = PL_inplace;
734 sv_setpvn(sv, "", 0);
736 sv_catpvn(sv, begin, star - begin);
737 sv_catpvn(sv, PL_oldname, oldlen);
739 } while ((star = strchr(begin, '*')));
744 sv_catpv(sv,PL_inplace);
746 #ifndef FLEXFILENAMES
747 if ((PerlLIO_stat(SvPVX(sv),&PL_statbuf) >= 0
748 && PL_statbuf.st_dev == filedev
749 && PL_statbuf.st_ino == fileino)
751 || ((_djstat_fail_bits & _STFAIL_TRUENAME)!=0)
755 if (ckWARN_d(WARN_INPLACE))
756 Perl_warner(aTHX_ packWARN(WARN_INPLACE),
757 "Can't do inplace edit: %s would not be unique",
764 #if !defined(DOSISH) && !defined(__CYGWIN__) && !defined(EPOC)
765 if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) {
766 if (ckWARN_d(WARN_INPLACE))
767 Perl_warner(aTHX_ packWARN(WARN_INPLACE),
768 "Can't rename %s to %s: %s, skipping file",
769 PL_oldname, SvPVX(sv), Strerror(errno) );
775 (void)PerlLIO_unlink(SvPVX(sv));
776 (void)PerlLIO_rename(PL_oldname,SvPVX(sv));
777 do_open(gv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,O_RDONLY,0,Nullfp);
780 (void)UNLINK(SvPVX(sv));
781 if (link(PL_oldname,SvPVX(sv)) < 0) {
782 if (ckWARN_d(WARN_INPLACE))
783 Perl_warner(aTHX_ packWARN(WARN_INPLACE),
784 "Can't rename %s to %s: %s, skipping file",
785 PL_oldname, SvPVX(sv), Strerror(errno) );
789 (void)UNLINK(PL_oldname);
793 #if !defined(DOSISH) && !defined(AMIGAOS)
794 # ifndef VMS /* Don't delete; use automatic file versioning */
795 if (UNLINK(PL_oldname) < 0) {
796 if (ckWARN_d(WARN_INPLACE))
797 Perl_warner(aTHX_ packWARN(WARN_INPLACE),
798 "Can't remove %s: %s, skipping file",
799 PL_oldname, Strerror(errno) );
805 Perl_croak(aTHX_ "Can't do inplace edit without backup");
809 sv_setpvn(sv,">",!PL_inplace);
810 sv_catpvn(sv,PL_oldname,oldlen);
811 SETERRNO(0,0); /* in case sprintf set errno */
813 if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,
814 O_WRONLY|O_CREAT|O_TRUNC,0,Nullfp))
816 if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,
817 O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp))
820 if (ckWARN_d(WARN_INPLACE))
821 Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit on %s: %s",
822 PL_oldname, Strerror(errno) );
826 setdefout(PL_argvoutgv);
827 PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv)));
828 (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf);
830 (void)fchmod(PL_lastfd,PL_filemode);
832 # if !(defined(WIN32) && defined(__BORLANDC__))
833 /* Borland runtime creates a readonly file! */
834 (void)PerlLIO_chmod(PL_oldname,PL_filemode);
837 if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) {
839 (void)fchown(PL_lastfd,fileuid,filegid);
842 (void)PerlLIO_chown(PL_oldname,fileuid,filegid);
847 return IoIFP(GvIOp(gv));
850 if (ckWARN_d(WARN_INPLACE)) {
852 if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0
853 && !S_ISREG(PL_statbuf.st_mode))
855 Perl_warner(aTHX_ packWARN(WARN_INPLACE),
856 "Can't do inplace edit: %s is not a regular file",
860 Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't open %s: %s",
861 PL_oldname, Strerror(eno));
865 if (io && (IoFLAGS(io) & IOf_ARGV))
866 IoFLAGS(io) |= IOf_START;
868 (void)do_close(PL_argvoutgv,FALSE);
869 if (io && (IoFLAGS(io) & IOf_ARGV)
870 && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0)
872 GV *oldout = (GV*)av_pop(PL_argvout_stack);
874 SvREFCNT_dec(oldout);
877 setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO));
884 Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv)
903 if (PerlProc_pipe(fd) < 0)
905 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
906 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
907 IoIFP(wstio) = IoOFP(wstio);
908 IoTYPE(rstio) = IoTYPE_RDONLY;
909 IoTYPE(wstio) = IoTYPE_WRONLY;
910 if (!IoIFP(rstio) || !IoOFP(wstio)) {
911 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
912 else PerlLIO_close(fd[0]);
913 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
914 else PerlLIO_close(fd[1]);
918 sv_setsv(sv,&PL_sv_yes);
922 sv_setsv(sv,&PL_sv_undef);
927 /* explicit renamed to avoid C++ conflict -- kja */
929 Perl_do_close(pTHX_ GV *gv, bool not_implicit)
936 if (!gv || SvTYPE(gv) != SVt_PVGV) {
938 SETERRNO(EBADF,SS$_IVCHAN);
942 if (!io) { /* never opened */
944 if (ckWARN(WARN_UNOPENED)) /* no check for closed here */
945 report_evil_fh(gv, io, PL_op->op_type);
946 SETERRNO(EBADF,SS$_IVCHAN);
950 retval = io_close(io, not_implicit);
954 IoLINES_LEFT(io) = IoPAGE_LEN(io);
956 IoTYPE(io) = IoTYPE_CLOSED;
961 Perl_io_close(pTHX_ IO *io, bool not_implicit)
967 if (IoTYPE(io) == IoTYPE_PIPE) {
968 status = PerlProc_pclose(IoIFP(io));
970 STATUS_NATIVE_SET(status);
971 retval = (STATUS_POSIX == 0);
974 retval = (status != -1);
977 else if (IoTYPE(io) == IoTYPE_STD)
980 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */
981 retval = (PerlIO_close(IoOFP(io)) != EOF);
982 PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */
985 retval = (PerlIO_close(IoIFP(io)) != EOF);
987 IoOFP(io) = IoIFP(io) = Nullfp;
989 else if (not_implicit) {
990 SETERRNO(EBADF,SS$_IVCHAN);
997 Perl_do_eof(pTHX_ GV *gv)
1006 else if (ckWARN(WARN_IO) && (IoTYPE(io) == IoTYPE_WRONLY))
1007 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1011 if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */
1012 if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */
1013 return FALSE; /* this is the most usual case */
1016 ch = PerlIO_getc(IoIFP(io));
1018 (void)PerlIO_ungetc(IoIFP(io),ch);
1022 if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) {
1023 if (PerlIO_get_cnt(IoIFP(io)) < -1)
1024 PerlIO_set_cnt(IoIFP(io),-1);
1026 if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */
1027 if (gv != PL_argvgv || !nextargv(gv)) /* get another fp handy */
1031 return TRUE; /* normal fp, definitely end of file */
1037 Perl_do_tell(pTHX_ GV *gv)
1039 register IO *io = 0;
1040 register PerlIO *fp;
1042 if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
1043 #ifdef ULTRIX_STDIO_BOTCH
1045 (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */
1047 return PerlIO_tell(fp);
1049 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1050 report_evil_fh(gv, io, PL_op->op_type);
1051 SETERRNO(EBADF,RMS$_IFI);
1056 Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence)
1058 register IO *io = 0;
1059 register PerlIO *fp;
1061 if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
1062 #ifdef ULTRIX_STDIO_BOTCH
1064 (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */
1066 return PerlIO_seek(fp, pos, whence) >= 0;
1068 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1069 report_evil_fh(gv, io, PL_op->op_type);
1070 SETERRNO(EBADF,RMS$_IFI);
1075 Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence)
1077 register IO *io = 0;
1078 register PerlIO *fp;
1080 if (gv && (io = GvIO(gv)) && (fp = IoIFP(io)))
1081 return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence);
1082 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1083 report_evil_fh(gv, io, PL_op->op_type);
1084 SETERRNO(EBADF,RMS$_IFI);
1089 Perl_mode_from_discipline(pTHX_ SV *discp)
1091 int mode = O_BINARY;
1094 char *s = SvPV(discp,len);
1099 if (len > 3 && strnEQ(s+1, "raw", 3)
1100 && (!s[4] || s[4] == ':' || isSPACE(s[4])))
1109 if (len > 4 && strnEQ(s+1, "crlf", 4)
1110 && (!s[5] || s[5] == ':' || isSPACE(s[5])))
1119 goto fail_discipline;
1122 else if (isSPACE(*s)) {
1129 end = strchr(s+1, ':');
1132 #ifndef PERLIO_LAYERS
1133 Perl_croak(aTHX_ "Unknown discipline '%.*s'", end-s, s);
1144 Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode)
1146 /* The old body of this is now in non-LAYER part of perlio.c
1147 * This is a stub for any XS code which might have been calling it.
1149 char *name = ":raw";
1150 #ifdef PERLIO_USING_CRLF
1151 if (!(mode & O_BINARY))
1154 return PerlIO_binmode(aTHX_ fp, iotype, mode, name);
1157 #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP)
1158 /* code courtesy of William Kucharski */
1161 I32 my_chsize(fd, length)
1162 I32 fd; /* file descriptor */
1163 Off_t length; /* length to set file to */
1168 if (PerlLIO_fstat(fd, &filebuf) < 0)
1171 if (filebuf.st_size < length) {
1173 /* extend file length */
1175 if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0)
1178 /* write a "0" byte */
1180 if ((PerlLIO_write(fd, "", 1)) != 1)
1184 /* truncate length */
1188 fl.l_start = length;
1189 fl.l_type = F_WRLCK; /* write lock on file space */
1192 * This relies on the UNDOCUMENTED F_FREESP argument to
1193 * fcntl(2), which truncates the file so that it ends at the
1194 * position indicated by fl.l_start.
1196 * Will minor miracles never cease?
1199 if (fcntl(fd, F_FREESP, &fl) < 0)
1206 #endif /* F_FREESP */
1209 Perl_do_print(pTHX_ register SV *sv, PerlIO *fp)
1211 register char *tmps;
1214 /* assuming fp is checked earlier */
1220 if (SvIOK(sv) && SvIVX(sv) != 0) {
1221 PerlIO_printf(fp, PL_ofmt, (NV)SvIVX(sv));
1222 return !PerlIO_error(fp);
1224 if ( (SvNOK(sv) && SvNVX(sv) != 0.0)
1225 || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) {
1226 PerlIO_printf(fp, PL_ofmt, SvNVX(sv));
1227 return !PerlIO_error(fp);
1230 switch (SvTYPE(sv)) {
1232 if (ckWARN(WARN_UNINITIALIZED))
1240 PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv));
1242 PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv));
1243 return !PerlIO_error(fp);
1247 if (PerlIO_isutf8(fp)) {
1249 sv_utf8_upgrade(sv = sv_mortalcopy(sv));
1251 else if (DO_UTF8(sv)) {
1252 if (!sv_utf8_downgrade((sv = sv_mortalcopy(sv)), TRUE)
1253 && ckWARN_d(WARN_UTF8))
1255 Perl_warner(aTHX_ packWARN(WARN_UTF8), "Wide character in print");
1258 tmps = SvPV(sv, len);
1261 /* To detect whether the process is about to overstep its
1262 * filesize limit we would need getrlimit(). We could then
1263 * also transparently raise the limit with setrlimit() --
1264 * but only until the system hard limit/the filesystem limit,
1265 * at which we would get EPERM. Note that when using buffered
1266 * io the write failure can be delayed until the flush/close. --jhi */
1267 if (len && (PerlIO_write(fp,tmps,len) == 0))
1269 return !PerlIO_error(fp);
1279 if (PL_op->op_flags & OPf_REF) {
1284 if (io && IoIFP(io)) {
1286 sv_setpv(PL_statname,"");
1287 PL_laststype = OP_STAT;
1288 return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache));
1292 return PL_laststatval;
1293 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1294 report_evil_fh(gv, io, PL_op->op_type);
1296 sv_setpv(PL_statname,"");
1297 return (PL_laststatval = -1);
1305 if (SvTYPE(sv) == SVt_PVGV) {
1309 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1316 sv_setpv(PL_statname, s);
1317 PL_laststype = OP_STAT;
1318 PL_laststatval = PerlLIO_stat(s, &PL_statcache);
1319 if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n'))
1320 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
1321 return PL_laststatval;
1331 if (PL_op->op_flags & OPf_REF) {
1333 if (cGVOP_gv == PL_defgv) {
1334 if (PL_laststype != OP_LSTAT)
1335 Perl_croak(aTHX_ "The stat preceding -l _ wasn't an lstat");
1336 return PL_laststatval;
1338 if (ckWARN(WARN_IO)) {
1339 Perl_warner(aTHX_ packWARN(WARN_IO), "Use of -l on filehandle %s",
1341 return (PL_laststatval = -1);
1345 PL_laststype = OP_LSTAT;
1349 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV && ckWARN(WARN_IO)) {
1350 Perl_warner(aTHX_ packWARN(WARN_IO), "Use of -l on filehandle %s",
1351 GvENAME((GV*) SvRV(sv)));
1352 return (PL_laststatval = -1);
1354 sv_setpv(PL_statname,SvPV(sv, n_a));
1355 PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache);
1356 if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
1357 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "lstat");
1358 return PL_laststatval;
1362 Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp)
1364 return do_aexec5(really, mark, sp, 0, 0);
1368 Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp,
1369 int fd, int do_report)
1371 #ifdef MACOS_TRADITIONAL
1372 Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system");
1375 char *tmps = Nullch;
1379 New(401,PL_Argv, sp - mark + 1, char*);
1381 while (++mark <= sp) {
1383 *a++ = SvPVx(*mark, n_a);
1389 tmps = SvPV(really, n_a);
1390 if ((!really && *PL_Argv[0] != '/') ||
1391 (really && *tmps != '/')) /* will execvp use PATH? */
1392 TAINT_ENV(); /* testing IFS here is overkill, probably */
1393 if (really && *tmps)
1394 PerlProc_execvp(tmps,EXEC_ARGV_CAST(PL_Argv));
1396 PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv));
1397 if (ckWARN(WARN_EXEC))
1398 Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s",
1399 (really ? tmps : PL_Argv[0]), Strerror(errno));
1403 PerlLIO_write(fd, (void*)&e, sizeof(int));
1413 Perl_do_execfree(pTHX)
1417 PL_Argv = Null(char **);
1425 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(MACOS_TRADITIONAL)
1428 Perl_do_exec(pTHX_ char *cmd)
1430 return do_exec3(cmd,0,0);
1434 Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report)
1439 while (*cmd && isSPACE(*cmd))
1442 /* save an extra exec if possible */
1447 if (strnEQ(cmd,PL_cshname,PL_cshlen) &&
1448 strnEQ(cmd+PL_cshlen," -c",3)) {
1450 s = cmd+PL_cshlen+3;
1464 if (s[-1] == '\'') {
1466 PerlProc_execl(PL_cshname,"csh", flags, ncmd, (char*)0);
1475 /* see if there are shell metacharacters in it */
1477 if (*cmd == '.' && isSPACE(cmd[1]))
1480 if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4]))
1483 for (s = cmd; *s && isALNUM(*s); s++) ; /* catch VAR=val gizmo */
1487 for (s = cmd; *s; s++) {
1488 if (*s != ' ' && !isALPHA(*s) &&
1489 strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) {
1490 if (*s == '\n' && !s[1]) {
1494 /* handle the 2>&1 construct at the end */
1495 if (*s == '>' && s[1] == '&' && s[2] == '1'
1496 && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2])
1497 && (!s[3] || isSPACE(s[3])))
1501 while (*t && isSPACE(*t))
1503 if (!*t && (dup2(1,2) != -1)) {
1509 PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0);
1514 New(402,PL_Argv, (s - cmd) / 2 + 2, char*);
1515 PL_Cmd = savepvn(cmd, s-cmd);
1517 for (s = PL_Cmd; *s;) {
1518 while (*s && isSPACE(*s)) s++;
1521 while (*s && !isSPACE(*s)) s++;
1527 PerlProc_execvp(PL_Argv[0],PL_Argv);
1528 if (errno == ENOEXEC) { /* for system V NIH syndrome */
1535 if (ckWARN(WARN_EXEC))
1536 Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s",
1537 PL_Argv[0], Strerror(errno));
1539 PerlLIO_write(fd, (void*)&e, sizeof(int));
1548 #endif /* OS2 || WIN32 */
1551 Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp)
1555 register I32 tot = 0;
1558 SV **oldmark = mark;
1561 #define APPLY_TAINT_PROPER() \
1563 if (PL_tainted) { TAINT_PROPER(what); } \
1566 /* This is a first heuristic; it doesn't catch tainting magic. */
1568 while (++mark <= sp) {
1569 if (SvTAINTED(*mark)) {
1579 APPLY_TAINT_PROPER();
1582 APPLY_TAINT_PROPER();
1584 while (++mark <= sp) {
1585 char *name = SvPVx(*mark, n_a);
1586 APPLY_TAINT_PROPER();
1587 if (PerlLIO_chmod(name, val))
1595 APPLY_TAINT_PROPER();
1596 if (sp - mark > 2) {
1597 val = SvIVx(*++mark);
1598 val2 = SvIVx(*++mark);
1599 APPLY_TAINT_PROPER();
1601 while (++mark <= sp) {
1602 char *name = SvPVx(*mark, n_a);
1603 APPLY_TAINT_PROPER();
1604 if (PerlLIO_chown(name, val, val2))
1611 XXX Should we make lchown() directly available from perl?
1612 For now, we'll let Configure test for HAS_LCHOWN, but do
1613 nothing in the core.
1619 APPLY_TAINT_PROPER();
1622 s = SvPVx(*++mark, n_a);
1624 if (*s == 'S' && s[1] == 'I' && s[2] == 'G')
1626 if (!(val = whichsig(s)))
1627 Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s);
1631 APPLY_TAINT_PROPER();
1634 /* kill() doesn't do process groups (job trees?) under VMS */
1635 if (val < 0) val = -val;
1636 if (val == SIGKILL) {
1637 # include <starlet.h>
1638 /* Use native sys$delprc() to insure that target process is
1639 * deleted; supervisor-mode images don't pay attention to
1640 * CRTL's emulation of Unix-style signals and kill()
1642 while (++mark <= sp) {
1643 I32 proc = SvIVx(*mark);
1644 register unsigned long int __vmssts;
1645 APPLY_TAINT_PROPER();
1646 if (!((__vmssts = sys$delprc(&proc,0)) & 1)) {
1650 case SS$_NOSUCHNODE:
1651 SETERRNO(ESRCH,__vmssts);
1654 SETERRNO(EPERM,__vmssts);
1657 SETERRNO(EVMSERR,__vmssts);
1666 while (++mark <= sp) {
1667 I32 proc = SvIVx(*mark);
1668 APPLY_TAINT_PROPER();
1670 if (PerlProc_killpg(proc,val)) /* BSD */
1672 if (PerlProc_kill(-proc,val)) /* SYSV */
1678 while (++mark <= sp) {
1679 I32 proc = SvIVx(*mark);
1680 APPLY_TAINT_PROPER();
1681 if (PerlProc_kill(proc, val))
1689 APPLY_TAINT_PROPER();
1691 while (++mark <= sp) {
1692 s = SvPVx(*mark, n_a);
1693 APPLY_TAINT_PROPER();
1694 if (PL_euid || PL_unsafe) {
1698 else { /* don't let root wipe out directories without -U */
1699 if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode))
1711 APPLY_TAINT_PROPER();
1712 if (sp - mark > 2) {
1713 #if defined(I_UTIME) || defined(VMS)
1714 struct utimbuf utbuf;
1722 SV* accessed = *++mark;
1723 SV* modified = *++mark;
1724 void * utbufp = &utbuf;
1726 /* be like C, and if both times are undefined, let the C
1727 library figure out what to do. This usually means
1730 if ( accessed == &PL_sv_undef && modified == &PL_sv_undef )
1733 Zero(&utbuf, sizeof utbuf, char);
1735 utbuf.actime = (Time_t)SvNVx(accessed); /* time accessed */
1736 utbuf.modtime = (Time_t)SvNVx(modified); /* time modified */
1738 utbuf.actime = (Time_t)SvIVx(accessed); /* time accessed */
1739 utbuf.modtime = (Time_t)SvIVx(modified); /* time modified */
1741 APPLY_TAINT_PROPER();
1743 while (++mark <= sp) {
1744 char *name = SvPVx(*mark, n_a);
1745 APPLY_TAINT_PROPER();
1746 if (PerlLIO_utime(name, utbufp))
1757 #undef APPLY_TAINT_PROPER
1760 /* Do the permissions allow some operation? Assumes statcache already set. */
1761 #ifndef VMS /* VMS' cando is in vms.c */
1763 Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register Stat_t *statbufp)
1764 /* Note: we use `effective' both for uids and gids.
1765 * Here we are betting on Uid_t being equal or wider than Gid_t. */
1768 /* [Comments and code from Len Reed]
1769 * MS-DOS "user" is similar to UNIX's "superuser," but can't write
1770 * to write-protected files. The execute permission bit is set
1771 * by the Miscrosoft C library stat() function for the following:
1776 * All files and directories are readable.
1777 * Directories and special files, e.g. "CON", cannot be
1779 * [Comment by Tom Dinger -- a directory can have the write-protect
1780 * bit set in the file system, but DOS permits changes to
1781 * the directory anyway. In addition, all bets are off
1782 * here for networked software, such as Novell and
1786 /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat
1787 * too so it will actually look into the files for magic numbers
1789 return (mode & statbufp->st_mode) ? TRUE : FALSE;
1791 #else /* ! DOSISH */
1792 if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */
1793 if (mode == S_IXUSR) {
1794 if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode))
1798 return TRUE; /* root reads and writes anything */
1801 if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) {
1802 if (statbufp->st_mode & mode)
1803 return TRUE; /* ok as "user" */
1805 else if (ingroup(statbufp->st_gid,effective)) {
1806 if (statbufp->st_mode & mode >> 3)
1807 return TRUE; /* ok as "group" */
1809 else if (statbufp->st_mode & mode >> 6)
1810 return TRUE; /* ok as "other" */
1812 #endif /* ! DOSISH */
1817 Perl_ingroup(pTHX_ Gid_t testgid, Uid_t effective)
1819 #ifdef MACOS_TRADITIONAL
1820 /* This is simply not correct for AppleShare, but fix it yerself. */
1823 if (testgid == (effective ? PL_egid : PL_gid))
1825 #ifdef HAS_GETGROUPS
1830 Groups_t gary[NGROUPS];
1833 anum = getgroups(NGROUPS,gary);
1835 if (gary[anum] == testgid)
1843 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
1846 Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp)
1851 key = (key_t)SvNVx(*++mark);
1852 n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark);
1853 flags = SvIVx(*++mark);
1859 return msgget(key, flags);
1863 return semget(key, n, flags);
1867 return shmget(key, n, flags);
1869 #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM)
1871 Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
1874 return -1; /* should never happen */
1878 Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp)
1882 I32 id, n, cmd, infosize, getinfo;
1885 id = SvIVx(*++mark);
1886 n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0;
1887 cmd = SvIVx(*++mark);
1890 getinfo = (cmd == IPC_STAT);
1896 if (cmd == IPC_STAT || cmd == IPC_SET)
1897 infosize = sizeof(struct msqid_ds);
1902 if (cmd == IPC_STAT || cmd == IPC_SET)
1903 infosize = sizeof(struct shmid_ds);
1909 if (cmd == IPC_STAT || cmd == IPC_SET)
1910 infosize = sizeof(struct semid_ds);
1911 else if (cmd == GETALL || cmd == SETALL)
1913 struct semid_ds semds;
1915 #ifdef EXTRA_F_IN_SEMUN_BUF
1916 semun.buff = &semds;
1920 getinfo = (cmd == GETALL);
1921 if (Semctl(id, 0, IPC_STAT, semun) == -1)
1923 infosize = semds.sem_nsems * sizeof(short);
1924 /* "short" is technically wrong but much more portable
1925 than guessing about u_?short(_t)? */
1928 Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
1932 #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM)
1934 Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
1943 SvPV_force(astr, len);
1944 a = SvGROW(astr, infosize+1);
1948 a = SvPV(astr, len);
1949 if (len != infosize)
1950 Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld",
1959 a = INT2PTR(char *,i); /* ouch */
1966 ret = msgctl(id, cmd, (struct msqid_ds *)a);
1972 union semun unsemds;
1974 #ifdef EXTRA_F_IN_SEMUN_BUF
1975 unsemds.buff = (struct semid_ds *)a;
1977 unsemds.buf = (struct semid_ds *)a;
1979 ret = Semctl(id, n, cmd, unsemds);
1981 Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
1988 ret = shmctl(id, cmd, (struct shmid_ds *)a);
1992 if (getinfo && ret >= 0) {
1993 SvCUR_set(astr, infosize);
1994 *SvEND(astr) = '\0';
2001 Perl_do_msgsnd(pTHX_ SV **mark, SV **sp)
2006 I32 id, msize, flags;
2009 id = SvIVx(*++mark);
2011 flags = SvIVx(*++mark);
2012 mbuf = SvPV(mstr, len);
2013 if ((msize = len - sizeof(long)) < 0)
2014 Perl_croak(aTHX_ "Arg too short for msgsnd");
2016 return msgsnd(id, (struct msgbuf *)mbuf, msize, flags);
2018 Perl_croak(aTHX_ "msgsnd not implemented");
2023 Perl_do_msgrcv(pTHX_ SV **mark, SV **sp)
2029 I32 id, msize, flags, ret;
2032 id = SvIVx(*++mark);
2034 /* suppress warning when reading into undef var --jhi */
2036 sv_setpvn(mstr, "", 0);
2037 msize = SvIVx(*++mark);
2038 mtype = (long)SvIVx(*++mark);
2039 flags = SvIVx(*++mark);
2040 SvPV_force(mstr, len);
2041 mbuf = SvGROW(mstr, sizeof(long)+msize+1);
2044 ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags);
2046 SvCUR_set(mstr, sizeof(long)+ret);
2047 *SvEND(mstr) = '\0';
2048 #ifndef INCOMPLETE_TAINTS
2049 /* who knows who has been playing with this message? */
2055 Perl_croak(aTHX_ "msgrcv not implemented");
2060 Perl_do_semop(pTHX_ SV **mark, SV **sp)
2068 id = SvIVx(*++mark);
2070 opbuf = SvPV(opstr, opsize);
2071 if (opsize < 3 * SHORTSIZE
2072 || (opsize % (3 * SHORTSIZE))) {
2073 SETERRNO(EINVAL,LIB$_INVARG);
2077 /* We can't assume that sizeof(struct sembuf) == 3 * sizeof(short). */
2079 int nsops = opsize / (3 * sizeof (short));
2081 short *ops = (short *) opbuf;
2083 struct sembuf *temps, *t;
2086 New (0, temps, nsops, struct sembuf);
2094 result = semop(id, temps, nsops);
2108 Perl_croak(aTHX_ "semop not implemented");
2113 Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp)
2118 I32 id, mpos, msize;
2120 struct shmid_ds shmds;
2122 id = SvIVx(*++mark);
2124 mpos = SvIVx(*++mark);
2125 msize = SvIVx(*++mark);
2127 if (shmctl(id, IPC_STAT, &shmds) == -1)
2129 if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) {
2130 SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */
2133 shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0);
2134 if (shm == (char *)-1) /* I hate System V IPC, I really do */
2136 if (optype == OP_SHMREAD) {
2137 /* suppress warning when reading into undef var (tchrist 3/Mar/00) */
2139 sv_setpvn(mstr, "", 0);
2140 SvPV_force(mstr, len);
2141 mbuf = SvGROW(mstr, msize+1);
2143 Copy(shm + mpos, mbuf, msize, char);
2144 SvCUR_set(mstr, msize);
2145 *SvEND(mstr) = '\0';
2147 #ifndef INCOMPLETE_TAINTS
2148 /* who knows who has been playing with this shared memory? */
2155 mbuf = SvPV(mstr, len);
2156 if ((n = len) > msize)
2158 Copy(mbuf, shm + mpos, n, char);
2160 memzero(shm + mpos + n, msize - n);
2164 Perl_croak(aTHX_ "shm I/O not implemented");
2168 #endif /* SYSV IPC */
2173 =for apidoc start_glob
2175 Function called by C<do_readline> to spawn a glob (or do the glob inside
2176 perl on VMS). This code used to be inline, but now perl uses C<File::Glob>
2177 this glob starter is only used by miniperl during the build process.
2178 Moving it away shrinks pp_hot.c; shrinking pp_hot.c helps speed perl up.
2184 Perl_start_glob (pTHX_ SV *tmpglob, IO *io)
2186 SV *tmpcmd = NEWSV(55, 0);
2190 #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */
2191 /* since spawning off a process is a real performance hit */
2193 #include <descrip.h>
2194 #include <lib$routines.h>
2197 char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'};
2198 char vmsspec[NAM$C_MAXRSS+1];
2199 char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp;
2200 $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;");
2203 struct dsc$descriptor_s wilddsc
2204 = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
2205 struct dsc$descriptor_vs rsdsc
2206 = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt};
2207 unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0;
2209 /* We could find out if there's an explicit dev/dir or version
2210 by peeking into lib$find_file's internal context at
2211 ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb
2212 but that's unsupported, so I don't want to do it now and
2213 have it bite someone in the future. */
2214 cp = SvPV(tmpglob,i);
2216 if (cp[i] == ';') hasver = 1;
2218 if (sts) hasver = 1;
2222 hasdir = isunix = 1;
2225 if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') {
2230 if ((tmpfp = PerlIO_tmpfile()) != NULL) {
2232 if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode))
2233 ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL);
2234 else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
2235 if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer);
2236 for (cp=wilddsc.dsc$a_pointer; ok && cp && *cp; cp++)
2237 if (*cp == '?') *cp = '%'; /* VMS style single-char wildcard */
2238 while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt,
2239 &dfltdsc,NULL,NULL,NULL))&1)) {
2240 end = rstr + (unsigned long int) *rslt;
2241 if (!hasver) while (*end != ';') end--;
2242 *(end++) = '\n'; *end = '\0';
2243 for (cp = rstr; *cp; cp++) *cp = _tolower(*cp);
2245 if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1);
2250 while (*(--begin) != ']' && *begin != '>') ;
2253 ok = (PerlIO_puts(tmpfp,begin) != EOF);
2255 if (cxt) (void)lib$find_file_end(&cxt);
2256 if (ok && sts != RMS$_NMF &&
2257 sts != RMS$_DNF && sts != RMS$_FNF) ok = 0;
2260 SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts);
2262 PerlIO_close(tmpfp);
2266 PerlIO_rewind(tmpfp);
2267 IoTYPE(io) = IoTYPE_RDONLY;
2268 IoIFP(io) = fp = tmpfp;
2269 IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */
2274 #ifdef MACOS_TRADITIONAL
2275 sv_setpv(tmpcmd, "glob ");
2276 sv_catsv(tmpcmd, tmpglob);
2277 sv_catpv(tmpcmd, " |");
2281 sv_setpv(tmpcmd, "for a in ");
2282 sv_catsv(tmpcmd, tmpglob);
2283 sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |");
2286 sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */
2287 sv_catsv(tmpcmd, tmpglob);
2289 sv_setpv(tmpcmd, "perlglob ");
2290 sv_catsv(tmpcmd, tmpglob);
2291 sv_catpv(tmpcmd, " |");
2296 sv_setpvn(tmpcmd, PL_cshname, PL_cshlen);
2297 sv_catpv(tmpcmd, " -cf 'set nonomatch; glob ");
2298 sv_catsv(tmpcmd, tmpglob);
2299 sv_catpv(tmpcmd, "' 2>/dev/null |");
2301 sv_setpv(tmpcmd, "echo ");
2302 sv_catsv(tmpcmd, tmpglob);
2304 sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|");
2306 sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|");
2309 #endif /* !DOSISH */
2310 #endif /* MACOS_TRADITIONAL */
2311 (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd),
2312 FALSE, O_RDONLY, 0, Nullfp);