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 */
216 name = SvOK(*svp) ? SvPV(*svp, l) : "";
218 name = savepvn(name, len);
226 if ((*type == IoTYPE_RDWR) && /* scary */
227 (*(type+1) == IoTYPE_RDONLY || *(type+1) == IoTYPE_WRONLY) &&
228 ((!num_svs || (tend > type+1 && tend[-1] != IoTYPE_PIPE)))) {
229 TAINT_PROPER("open");
234 if (*type == IoTYPE_PIPE) {
236 if (type[1] != IoTYPE_STD) {
238 Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname);
243 for (type++; isSPACE(*type); type++) ;
249 /* command is missing 19990114 */
250 if (ckWARN(WARN_PIPE))
251 Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open");
255 if (strNE(name,"-") || num_svs)
257 TAINT_PROPER("piped open");
258 if (!num_svs && name[len-1] == '|') {
260 if (ckWARN(WARN_PIPE))
261 Perl_warner(aTHX_ WARN_PIPE, "Can't open bidirectional pipe");
270 fp = PerlProc_popen_list(mode, num_svs, svp);
273 fp = PerlProc_popen(name,mode);
276 else if (*type == IoTYPE_WRONLY) {
277 TAINT_PROPER("open");
279 if (*type == IoTYPE_WRONLY) {
280 /* Two IoTYPE_WRONLYs in a row make for an IoTYPE_APPEND. */
281 mode[0] = IoTYPE(io) = IoTYPE_APPEND;
296 dodup = PERLIO_DUP_FD;
302 if (!num_svs && !*type && supplied_fp) {
303 /* "<+&" etc. is used by typemaps */
308 Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io));
310 if (num_svs && SvIOK(*svp)) {
313 else if (isDIGIT(*type)) {
315 for (; isSPACE(*type); type++) ;
321 thatio = sv_2io(*svp);
326 for (; isSPACE(*type); type++) ;
327 thatgv = gv_fetchpv(type,FALSE,SVt_PVIO);
328 thatio = GvIO(thatgv);
332 SETERRNO(EINVAL,SS$_IVCHAN);
336 if ((that_fp = IoIFP(thatio))) {
337 /* Flush stdio buffer before dup. --mjd
338 * Unfortunately SEEK_CURing 0 seems to
339 * be optimized away on most platforms;
340 * only Solaris and Linux seem to flush
343 /* sfio fails to clear error on next
344 sfwrite, contrary to documentation.
346 if (PerlIO_seek(that_fp, 0, SEEK_CUR) == -1)
347 PerlIO_clearerr(that_fp);
349 /* On the other hand, do all platforms
350 * take gracefully to flushing a read-only
351 * filehandle? Perhaps we should do
352 * fsetpos(src)+fgetpos(dst)? --nik */
353 PerlIO_flush(that_fp);
354 fd = PerlIO_fileno(that_fp);
355 /* When dup()ing STDIN, STDOUT or STDERR
356 * explicitly set appropriate access mode */
357 if (that_fp == PerlIO_stdout()
358 || that_fp == PerlIO_stderr())
359 IoTYPE(io) = IoTYPE_WRONLY;
360 else if (that_fp == PerlIO_stdin())
361 IoTYPE(io) = IoTYPE_RDONLY;
362 /* When dup()ing a socket, say result is
364 else if (IoTYPE(thatio) == IoTYPE_SOCKET)
365 IoTYPE(io) = IoTYPE_SOCKET;
373 fp = PerlIO_fdupopen(aTHX_ that_fp, NULL, dodup);
377 fd = PerlLIO_dup(fd);
380 if (!(fp = PerlIO_openn(aTHX_ type,mode,fd,0,0,NULL,num_svs,svp))) {
389 for (; isSPACE(*type); type++) ;
390 if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) {
393 fp = PerlIO_stdout();
394 IoTYPE(io) = IoTYPE_STD;
396 Perl_croak(aTHX_ "More than one argument to '>%c' open",IoTYPE_STD);
401 namesv = sv_2mortal(newSVpvn(type,strlen(type)));
406 fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
410 else if (*type == IoTYPE_RDONLY) {
412 for (type++; isSPACE(*type); type++) ;
422 if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) {
426 IoTYPE(io) = IoTYPE_STD;
428 Perl_croak(aTHX_ "More than one argument to '<%c' open",IoTYPE_STD);
433 namesv = sv_2mortal(newSVpvn(type,strlen(type)));
438 fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
441 else if ((num_svs && type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) ||
442 (!num_svs && tend > type+1 && tend[-1] == IoTYPE_PIPE)) {
444 type += 2; /* skip over '-|' */
448 while (tend > type && isSPACE(tend[-1]))
451 for (; isSPACE(*type); type++) ;
456 /* command is missing 19990114 */
457 if (ckWARN(WARN_PIPE))
458 Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open");
462 if (strNE(name,"-") || num_svs)
464 TAINT_PROPER("piped open");
471 fp = PerlProc_popen_list(mode,num_svs,svp);
474 fp = PerlProc_popen(name,mode);
476 IoTYPE(io) = IoTYPE_PIPE;
482 IoTYPE(io) = IoTYPE_RDONLY;
484 for (; isSPACE(*name); name++) ;
490 if (strEQ(name,"-")) {
492 IoTYPE(io) = IoTYPE_STD;
496 namesv = sv_2mortal(newSVpvn(type,strlen(type)));
501 fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
506 if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == IoTYPE_RDONLY && strchr(name, '\n'))
507 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
511 if (ckWARN(WARN_IO)) {
512 if ((IoTYPE(io) == IoTYPE_RDONLY) &&
513 (fp == PerlIO_stdout() || fp == PerlIO_stderr())) {
514 Perl_warner(aTHX_ WARN_IO,
515 "Filehandle STD%s opened only for input",
516 (fp == PerlIO_stdout()) ? "OUT" : "ERR");
518 else if ((IoTYPE(io) == IoTYPE_WRONLY) && fp == PerlIO_stdin()) {
519 Perl_warner(aTHX_ WARN_IO,
520 "Filehandle STDIN opened only for output");
524 fd = PerlIO_fileno(fp);
525 /* If there is no fd (e.g. PerlIO::Scalar) assume it isn't a
526 * socket - this covers PerlIO::Scalar - otherwise unless we "know" the
527 * type probe for socket-ness.
529 if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD && fd >= 0) {
530 if (PerlLIO_fstat(fd,&PL_statbuf) < 0) {
531 /* If PerlIO claims to have fd we had better be able to fstat() it. */
532 (void) PerlIO_close(fp);
536 if (S_ISSOCK(PL_statbuf.st_mode))
537 IoTYPE(io) = IoTYPE_SOCKET; /* in case a socket was passed in to us */
541 !(PL_statbuf.st_mode & S_IFMT)
545 && IoTYPE(io) != IoTYPE_WRONLY /* Dups of STD* filehandles already have */
546 && IoTYPE(io) != IoTYPE_RDONLY /* type so they aren't marked as sockets */
547 ) { /* on OS's that return 0 on fstat()ed pipe */
549 Sock_size_t buflen = sizeof tmpbuf;
550 if (PerlSock_getsockname(fd, (struct sockaddr *)tmpbuf, &buflen) >= 0
551 || errno != ENOTSOCK)
552 IoTYPE(io) = IoTYPE_SOCKET; /* some OS's return 0 on fstat()ed socket */
553 /* but some return 0 for streams too, sigh */
555 #endif /* HAS_SOCKET */
556 #endif /* !PERL_MICRO */
560 * If this is a standard handle we discard all the layer stuff
561 * and just dup the fd into whatever was on the handle before !
564 if (saveifp) { /* must use old fp? */
565 /* If fd is less that PL_maxsysfd i.e. STDIN..STDERR
566 then dup the new fileno down
569 PerlIO_flush(saveofp); /* emulate PerlIO_close() */
570 if (saveofp != saveifp) { /* was a socket? */
571 PerlIO_close(saveofp);
577 /* Still a small can-of-worms here if (say) PerlIO::Scalar
578 is assigned to (say) STDOUT - for now let dup2() fail
579 and provide the error
581 if (PerlLIO_dup2(fd, savefd) < 0) {
582 (void)PerlIO_close(fp);
586 if (savefd != PerlIO_fileno(PerlIO_stdin())) {
587 char newname[FILENAME_MAX+1];
588 if (PerlIO_getname(fp, newname)) {
589 if (fd == PerlIO_fileno(PerlIO_stdout())) Perl_vmssetuserlnm(aTHX_ "SYS$OUTPUT", newname);
590 if (fd == PerlIO_fileno(PerlIO_stderr())) Perl_vmssetuserlnm(aTHX_ "SYS$ERROR", newname);
595 sv = *av_fetch(PL_fdpid,fd,TRUE);
596 (void)SvUPGRADE(sv, SVt_IV);
599 sv = *av_fetch(PL_fdpid,savefd,TRUE);
601 (void)SvUPGRADE(sv, SVt_IV);
609 fd = PerlIO_fileno(fp);
611 #if defined(HAS_FCNTL) && defined(F_SETFD)
613 int save_errno = errno;
614 fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */
620 IoFLAGS(io) &= ~IOf_NOLINE;
622 if (IoTYPE(io) == IoTYPE_SOCKET
623 || (IoTYPE(io) == IoTYPE_WRONLY && fd >= 0 && S_ISCHR(PL_statbuf.st_mode)) ) {
625 if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,mode,fd,0,0,NULL,num_svs,svp))) {
639 IoTYPE(io) = savetype;
644 Perl_nextargv(pTHX_ register GV *gv)
647 #ifndef FLEXFILENAMES
656 PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO);
657 if (io && (IoFLAGS(io) & IOf_ARGV) && (IoFLAGS(io) & IOf_START)) {
658 IoFLAGS(io) &= ~IOf_START;
660 if (!PL_argvout_stack)
661 PL_argvout_stack = newAV();
662 av_push(PL_argvout_stack, SvREFCNT_inc(PL_defoutgv));
665 if (PL_filemode & (S_ISUID|S_ISGID)) {
666 PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */
668 (void)fchmod(PL_lastfd,PL_filemode);
670 (void)PerlLIO_chmod(PL_oldname,PL_filemode);
674 while (av_len(GvAV(gv)) >= 0) {
676 sv = av_shift(GvAV(gv));
678 sv_setsv(GvSV(gv),sv);
679 SvSETMAGIC(GvSV(gv));
680 PL_oldname = SvPVx(GvSV(gv), oldlen);
681 if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) {
683 TAINT_PROPER("inplace open");
684 if (oldlen == 1 && *PL_oldname == '-') {
685 setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO));
686 return IoIFP(GvIOp(gv));
688 #ifndef FLEXFILENAMES
689 filedev = PL_statbuf.st_dev;
690 fileino = PL_statbuf.st_ino;
692 PL_filemode = PL_statbuf.st_mode;
693 fileuid = PL_statbuf.st_uid;
694 filegid = PL_statbuf.st_gid;
695 if (!S_ISREG(PL_filemode)) {
696 if (ckWARN_d(WARN_INPLACE))
697 Perl_warner(aTHX_ WARN_INPLACE,
698 "Can't do inplace edit: %s is not a regular file",
704 char *star = strchr(PL_inplace, '*');
706 char *begin = PL_inplace;
707 sv_setpvn(sv, "", 0);
709 sv_catpvn(sv, begin, star - begin);
710 sv_catpvn(sv, PL_oldname, oldlen);
712 } while ((star = strchr(begin, '*')));
717 sv_catpv(sv,PL_inplace);
719 #ifndef FLEXFILENAMES
720 if ((PerlLIO_stat(SvPVX(sv),&PL_statbuf) >= 0
721 && PL_statbuf.st_dev == filedev
722 && PL_statbuf.st_ino == fileino)
724 || ((_djstat_fail_bits & _STFAIL_TRUENAME)!=0)
728 if (ckWARN_d(WARN_INPLACE))
729 Perl_warner(aTHX_ WARN_INPLACE,
730 "Can't do inplace edit: %s would not be unique",
737 #if !defined(DOSISH) && !defined(__CYGWIN__)
738 if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) {
739 if (ckWARN_d(WARN_INPLACE))
740 Perl_warner(aTHX_ WARN_INPLACE,
741 "Can't rename %s to %s: %s, skipping file",
742 PL_oldname, SvPVX(sv), Strerror(errno) );
748 (void)PerlLIO_unlink(SvPVX(sv));
749 (void)PerlLIO_rename(PL_oldname,SvPVX(sv));
750 do_open(gv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,O_RDONLY,0,Nullfp);
753 (void)UNLINK(SvPVX(sv));
754 if (link(PL_oldname,SvPVX(sv)) < 0) {
755 if (ckWARN_d(WARN_INPLACE))
756 Perl_warner(aTHX_ WARN_INPLACE,
757 "Can't rename %s to %s: %s, skipping file",
758 PL_oldname, SvPVX(sv), Strerror(errno) );
762 (void)UNLINK(PL_oldname);
766 #if !defined(DOSISH) && !defined(AMIGAOS)
767 # ifndef VMS /* Don't delete; use automatic file versioning */
768 if (UNLINK(PL_oldname) < 0) {
769 if (ckWARN_d(WARN_INPLACE))
770 Perl_warner(aTHX_ WARN_INPLACE,
771 "Can't remove %s: %s, skipping file",
772 PL_oldname, Strerror(errno) );
778 Perl_croak(aTHX_ "Can't do inplace edit without backup");
782 sv_setpvn(sv,">",!PL_inplace);
783 sv_catpvn(sv,PL_oldname,oldlen);
784 SETERRNO(0,0); /* in case sprintf set errno */
786 if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,
787 O_WRONLY|O_CREAT|O_TRUNC,0,Nullfp))
789 if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,
790 O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp))
793 if (ckWARN_d(WARN_INPLACE))
794 Perl_warner(aTHX_ WARN_INPLACE, "Can't do inplace edit on %s: %s",
795 PL_oldname, Strerror(errno) );
799 setdefout(PL_argvoutgv);
800 PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv)));
801 (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf);
803 (void)fchmod(PL_lastfd,PL_filemode);
805 # if !(defined(WIN32) && defined(__BORLANDC__))
806 /* Borland runtime creates a readonly file! */
807 (void)PerlLIO_chmod(PL_oldname,PL_filemode);
810 if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) {
812 (void)fchown(PL_lastfd,fileuid,filegid);
815 (void)PerlLIO_chown(PL_oldname,fileuid,filegid);
820 return IoIFP(GvIOp(gv));
823 if (ckWARN_d(WARN_INPLACE)) {
825 if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0
826 && !S_ISREG(PL_statbuf.st_mode))
828 Perl_warner(aTHX_ WARN_INPLACE,
829 "Can't do inplace edit: %s is not a regular file",
833 Perl_warner(aTHX_ WARN_INPLACE, "Can't open %s: %s",
834 PL_oldname, Strerror(eno));
838 if (io && (IoFLAGS(io) & IOf_ARGV))
839 IoFLAGS(io) |= IOf_START;
841 (void)do_close(PL_argvoutgv,FALSE);
842 if (io && (IoFLAGS(io) & IOf_ARGV)
843 && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0)
845 GV *oldout = (GV*)av_pop(PL_argvout_stack);
847 SvREFCNT_dec(oldout);
850 setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO));
857 Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv)
876 if (PerlProc_pipe(fd) < 0)
878 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
879 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
880 IoIFP(wstio) = IoOFP(wstio);
881 IoTYPE(rstio) = IoTYPE_RDONLY;
882 IoTYPE(wstio) = IoTYPE_WRONLY;
883 if (!IoIFP(rstio) || !IoOFP(wstio)) {
884 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
885 else PerlLIO_close(fd[0]);
886 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
887 else PerlLIO_close(fd[1]);
891 sv_setsv(sv,&PL_sv_yes);
895 sv_setsv(sv,&PL_sv_undef);
900 /* explicit renamed to avoid C++ conflict -- kja */
902 Perl_do_close(pTHX_ GV *gv, bool not_implicit)
909 if (!gv || SvTYPE(gv) != SVt_PVGV) {
911 SETERRNO(EBADF,SS$_IVCHAN);
915 if (!io) { /* never opened */
917 if (ckWARN(WARN_UNOPENED)) /* no check for closed here */
918 report_evil_fh(gv, io, PL_op->op_type);
919 SETERRNO(EBADF,SS$_IVCHAN);
923 retval = io_close(io, not_implicit);
927 IoLINES_LEFT(io) = IoPAGE_LEN(io);
929 IoTYPE(io) = IoTYPE_CLOSED;
934 Perl_io_close(pTHX_ IO *io, bool not_implicit)
940 if (IoTYPE(io) == IoTYPE_PIPE) {
941 status = PerlProc_pclose(IoIFP(io));
943 STATUS_NATIVE_SET(status);
944 retval = (STATUS_POSIX == 0);
947 retval = (status != -1);
950 else if (IoTYPE(io) == IoTYPE_STD)
953 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */
954 retval = (PerlIO_close(IoOFP(io)) != EOF);
955 PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */
958 retval = (PerlIO_close(IoIFP(io)) != EOF);
960 IoOFP(io) = IoIFP(io) = Nullfp;
962 else if (not_implicit) {
963 SETERRNO(EBADF,SS$_IVCHAN);
970 Perl_do_eof(pTHX_ GV *gv)
979 else if (ckWARN(WARN_IO) && (IoTYPE(io) == IoTYPE_WRONLY))
980 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
984 if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */
985 if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */
986 return FALSE; /* this is the most usual case */
989 ch = PerlIO_getc(IoIFP(io));
991 (void)PerlIO_ungetc(IoIFP(io),ch);
995 if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) {
996 if (PerlIO_get_cnt(IoIFP(io)) < -1)
997 PerlIO_set_cnt(IoIFP(io),-1);
999 if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */
1000 if (!nextargv(PL_argvgv)) /* get another fp handy */
1004 return TRUE; /* normal fp, definitely end of file */
1010 Perl_do_tell(pTHX_ GV *gv)
1012 register IO *io = 0;
1013 register PerlIO *fp;
1015 if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
1016 #ifdef ULTRIX_STDIO_BOTCH
1018 (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */
1020 return PerlIO_tell(fp);
1022 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1023 report_evil_fh(gv, io, PL_op->op_type);
1024 SETERRNO(EBADF,RMS$_IFI);
1029 Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence)
1031 register IO *io = 0;
1032 register PerlIO *fp;
1034 if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
1035 #ifdef ULTRIX_STDIO_BOTCH
1037 (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */
1039 return PerlIO_seek(fp, pos, whence) >= 0;
1041 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1042 report_evil_fh(gv, io, PL_op->op_type);
1043 SETERRNO(EBADF,RMS$_IFI);
1048 Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence)
1050 register IO *io = 0;
1051 register PerlIO *fp;
1053 if (gv && (io = GvIO(gv)) && (fp = IoIFP(io)))
1054 return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence);
1055 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1056 report_evil_fh(gv, io, PL_op->op_type);
1057 SETERRNO(EBADF,RMS$_IFI);
1062 Perl_mode_from_discipline(pTHX_ SV *discp)
1064 int mode = O_BINARY;
1067 char *s = SvPV(discp,len);
1072 if (len > 3 && strnEQ(s+1, "raw", 3)
1073 && (!s[4] || s[4] == ':' || isSPACE(s[4])))
1082 if (len > 4 && strnEQ(s+1, "crlf", 4)
1083 && (!s[5] || s[5] == ':' || isSPACE(s[5])))
1092 goto fail_discipline;
1095 else if (isSPACE(*s)) {
1102 end = strchr(s+1, ':');
1105 #ifndef PERLIO_LAYERS
1106 Perl_croak(aTHX_ "Unknown discipline '%.*s'", end-s, s);
1117 Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode)
1119 /* The old body of this is now in non-LAYER part of perlio.c
1120 * This is a stub for any XS code which might have been calling it.
1122 char *name = ":raw";
1123 #ifdef PERLIO_USING_CRLF
1124 if (!(mode & O_BINARY))
1127 return PerlIO_binmode(aTHX_ fp, iotype, mode, name);
1130 #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP)
1131 /* code courtesy of William Kucharski */
1134 I32 my_chsize(fd, length)
1135 I32 fd; /* file descriptor */
1136 Off_t length; /* length to set file to */
1139 struct stat filebuf;
1141 if (PerlLIO_fstat(fd, &filebuf) < 0)
1144 if (filebuf.st_size < length) {
1146 /* extend file length */
1148 if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0)
1151 /* write a "0" byte */
1153 if ((PerlLIO_write(fd, "", 1)) != 1)
1157 /* truncate length */
1161 fl.l_start = length;
1162 fl.l_type = F_WRLCK; /* write lock on file space */
1165 * This relies on the UNDOCUMENTED F_FREESP argument to
1166 * fcntl(2), which truncates the file so that it ends at the
1167 * position indicated by fl.l_start.
1169 * Will minor miracles never cease?
1172 if (fcntl(fd, F_FREESP, &fl) < 0)
1179 #endif /* F_FREESP */
1182 Perl_do_print(pTHX_ register SV *sv, PerlIO *fp)
1184 register char *tmps;
1187 /* assuming fp is checked earlier */
1193 if (SvIOK(sv) && SvIVX(sv) != 0) {
1194 PerlIO_printf(fp, PL_ofmt, (NV)SvIVX(sv));
1195 return !PerlIO_error(fp);
1197 if ( (SvNOK(sv) && SvNVX(sv) != 0.0)
1198 || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) {
1199 PerlIO_printf(fp, PL_ofmt, SvNVX(sv));
1200 return !PerlIO_error(fp);
1203 switch (SvTYPE(sv)) {
1205 if (ckWARN(WARN_UNINITIALIZED))
1213 PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv));
1215 PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv));
1216 return !PerlIO_error(fp);
1220 if (PerlIO_isutf8(fp)) {
1222 sv_utf8_upgrade(sv = sv_mortalcopy(sv));
1224 else if (DO_UTF8(sv)) {
1225 if (!sv_utf8_downgrade((sv = sv_mortalcopy(sv)), TRUE)
1226 && ckWARN_d(WARN_UTF8))
1228 Perl_warner(aTHX_ WARN_UTF8, "Wide character in print");
1231 tmps = SvPV(sv, len);
1234 /* To detect whether the process is about to overstep its
1235 * filesize limit we would need getrlimit(). We could then
1236 * also transparently raise the limit with setrlimit() --
1237 * but only until the system hard limit/the filesystem limit,
1238 * at which we would get EPERM. Note that when using buffered
1239 * io the write failure can be delayed until the flush/close. --jhi */
1240 if (len && (PerlIO_write(fp,tmps,len) == 0))
1242 return !PerlIO_error(fp);
1252 if (PL_op->op_flags & OPf_REF) {
1257 if (io && IoIFP(io)) {
1259 sv_setpv(PL_statname,"");
1260 PL_laststype = OP_STAT;
1261 return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache));
1265 return PL_laststatval;
1266 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1267 report_evil_fh(gv, io, PL_op->op_type);
1269 sv_setpv(PL_statname,"");
1270 return (PL_laststatval = -1);
1278 if (SvTYPE(sv) == SVt_PVGV) {
1282 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1289 sv_setpv(PL_statname, s);
1290 PL_laststype = OP_STAT;
1291 PL_laststatval = PerlLIO_stat(s, &PL_statcache);
1292 if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n'))
1293 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
1294 return PL_laststatval;
1304 if (PL_op->op_flags & OPf_REF) {
1306 if (cGVOP_gv == PL_defgv) {
1307 if (PL_laststype != OP_LSTAT)
1308 Perl_croak(aTHX_ "The stat preceding -l _ wasn't an lstat");
1309 return PL_laststatval;
1311 if (ckWARN(WARN_IO)) {
1312 Perl_warner(aTHX_ WARN_IO, "Use of -l on filehandle %s",
1314 return (PL_laststatval = -1);
1318 PL_laststype = OP_LSTAT;
1322 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV && ckWARN(WARN_IO)) {
1323 Perl_warner(aTHX_ WARN_IO, "Use of -l on filehandle %s",
1324 GvENAME((GV*) SvRV(sv)));
1325 return (PL_laststatval = -1);
1327 sv_setpv(PL_statname,SvPV(sv, n_a));
1328 PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache);
1329 if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
1330 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "lstat");
1331 return PL_laststatval;
1335 Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp)
1337 return do_aexec5(really, mark, sp, 0, 0);
1341 Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp,
1342 int fd, int do_report)
1344 #ifdef MACOS_TRADITIONAL
1345 Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system");
1348 char *tmps = Nullch;
1352 New(401,PL_Argv, sp - mark + 1, char*);
1354 while (++mark <= sp) {
1356 *a++ = SvPVx(*mark, n_a);
1362 tmps = SvPV(really, n_a);
1363 if ((!really && *PL_Argv[0] != '/') ||
1364 (really && *tmps != '/')) /* will execvp use PATH? */
1365 TAINT_ENV(); /* testing IFS here is overkill, probably */
1366 if (really && *tmps)
1367 PerlProc_execvp(tmps,EXEC_ARGV_CAST(PL_Argv));
1369 PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv));
1370 if (ckWARN(WARN_EXEC))
1371 Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s",
1372 (really ? tmps : PL_Argv[0]), Strerror(errno));
1376 PerlLIO_write(fd, (void*)&e, sizeof(int));
1386 Perl_do_execfree(pTHX)
1390 PL_Argv = Null(char **);
1398 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(MACOS_TRADITIONAL)
1401 Perl_do_exec(pTHX_ char *cmd)
1403 return do_exec3(cmd,0,0);
1407 Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report)
1412 while (*cmd && isSPACE(*cmd))
1415 /* save an extra exec if possible */
1420 if (strnEQ(cmd,PL_cshname,PL_cshlen) &&
1421 strnEQ(cmd+PL_cshlen," -c",3)) {
1423 s = cmd+PL_cshlen+3;
1437 if (s[-1] == '\'') {
1439 PerlProc_execl(PL_cshname,"csh", flags, ncmd, (char*)0);
1448 /* see if there are shell metacharacters in it */
1450 if (*cmd == '.' && isSPACE(cmd[1]))
1453 if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4]))
1456 for (s = cmd; *s && isALNUM(*s); s++) ; /* catch VAR=val gizmo */
1460 for (s = cmd; *s; s++) {
1461 if (*s != ' ' && !isALPHA(*s) &&
1462 strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) {
1463 if (*s == '\n' && !s[1]) {
1467 /* handle the 2>&1 construct at the end */
1468 if (*s == '>' && s[1] == '&' && s[2] == '1'
1469 && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2])
1470 && (!s[3] || isSPACE(s[3])))
1474 while (*t && isSPACE(*t))
1476 if (!*t && (dup2(1,2) != -1)) {
1482 PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0);
1487 New(402,PL_Argv, (s - cmd) / 2 + 2, char*);
1488 PL_Cmd = savepvn(cmd, s-cmd);
1490 for (s = PL_Cmd; *s;) {
1491 while (*s && isSPACE(*s)) s++;
1494 while (*s && !isSPACE(*s)) s++;
1500 PerlProc_execvp(PL_Argv[0],PL_Argv);
1501 if (errno == ENOEXEC) { /* for system V NIH syndrome */
1508 if (ckWARN(WARN_EXEC))
1509 Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s",
1510 PL_Argv[0], Strerror(errno));
1512 PerlLIO_write(fd, (void*)&e, sizeof(int));
1521 #endif /* OS2 || WIN32 */
1524 Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp)
1528 register I32 tot = 0;
1531 SV **oldmark = mark;
1534 #define APPLY_TAINT_PROPER() \
1536 if (PL_tainted) { TAINT_PROPER(what); } \
1539 /* This is a first heuristic; it doesn't catch tainting magic. */
1541 while (++mark <= sp) {
1542 if (SvTAINTED(*mark)) {
1552 APPLY_TAINT_PROPER();
1555 APPLY_TAINT_PROPER();
1557 while (++mark <= sp) {
1558 char *name = SvPVx(*mark, n_a);
1559 APPLY_TAINT_PROPER();
1560 if (PerlLIO_chmod(name, val))
1568 APPLY_TAINT_PROPER();
1569 if (sp - mark > 2) {
1570 val = SvIVx(*++mark);
1571 val2 = SvIVx(*++mark);
1572 APPLY_TAINT_PROPER();
1574 while (++mark <= sp) {
1575 char *name = SvPVx(*mark, n_a);
1576 APPLY_TAINT_PROPER();
1577 if (PerlLIO_chown(name, val, val2))
1584 XXX Should we make lchown() directly available from perl?
1585 For now, we'll let Configure test for HAS_LCHOWN, but do
1586 nothing in the core.
1592 APPLY_TAINT_PROPER();
1595 s = SvPVx(*++mark, n_a);
1597 if (*s == 'S' && s[1] == 'I' && s[2] == 'G')
1599 if (!(val = whichsig(s)))
1600 Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s);
1604 APPLY_TAINT_PROPER();
1607 /* kill() doesn't do process groups (job trees?) under VMS */
1608 if (val < 0) val = -val;
1609 if (val == SIGKILL) {
1610 # include <starlet.h>
1611 /* Use native sys$delprc() to insure that target process is
1612 * deleted; supervisor-mode images don't pay attention to
1613 * CRTL's emulation of Unix-style signals and kill()
1615 while (++mark <= sp) {
1616 I32 proc = SvIVx(*mark);
1617 register unsigned long int __vmssts;
1618 APPLY_TAINT_PROPER();
1619 if (!((__vmssts = sys$delprc(&proc,0)) & 1)) {
1623 case SS$_NOSUCHNODE:
1624 SETERRNO(ESRCH,__vmssts);
1627 SETERRNO(EPERM,__vmssts);
1630 SETERRNO(EVMSERR,__vmssts);
1639 while (++mark <= sp) {
1640 I32 proc = SvIVx(*mark);
1641 APPLY_TAINT_PROPER();
1643 if (PerlProc_killpg(proc,val)) /* BSD */
1645 if (PerlProc_kill(-proc,val)) /* SYSV */
1651 while (++mark <= sp) {
1652 I32 proc = SvIVx(*mark);
1653 APPLY_TAINT_PROPER();
1654 if (PerlProc_kill(proc, val))
1662 APPLY_TAINT_PROPER();
1664 while (++mark <= sp) {
1665 s = SvPVx(*mark, n_a);
1666 APPLY_TAINT_PROPER();
1667 if (PL_euid || PL_unsafe) {
1671 else { /* don't let root wipe out directories without -U */
1672 if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode))
1684 APPLY_TAINT_PROPER();
1685 if (sp - mark > 2) {
1686 #if defined(I_UTIME) || defined(VMS)
1687 struct utimbuf utbuf;
1695 SV* accessed = *++mark;
1696 SV* modified = *++mark;
1697 void * utbufp = &utbuf;
1699 /* be like C, and if both times are undefined, let the C
1700 library figure out what to do. This usually means
1703 if ( accessed == &PL_sv_undef && modified == &PL_sv_undef )
1706 Zero(&utbuf, sizeof utbuf, char);
1708 utbuf.actime = (Time_t)SvNVx(accessed); /* time accessed */
1709 utbuf.modtime = (Time_t)SvNVx(modified); /* time modified */
1711 utbuf.actime = (Time_t)SvIVx(accessed); /* time accessed */
1712 utbuf.modtime = (Time_t)SvIVx(modified); /* time modified */
1714 APPLY_TAINT_PROPER();
1716 while (++mark <= sp) {
1717 char *name = SvPVx(*mark, n_a);
1718 APPLY_TAINT_PROPER();
1719 if (PerlLIO_utime(name, utbufp))
1730 #undef APPLY_TAINT_PROPER
1733 /* Do the permissions allow some operation? Assumes statcache already set. */
1734 #ifndef VMS /* VMS' cando is in vms.c */
1736 Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register Stat_t *statbufp)
1737 /* Note: we use `effective' both for uids and gids.
1738 * Here we are betting on Uid_t being equal or wider than Gid_t. */
1741 /* [Comments and code from Len Reed]
1742 * MS-DOS "user" is similar to UNIX's "superuser," but can't write
1743 * to write-protected files. The execute permission bit is set
1744 * by the Miscrosoft C library stat() function for the following:
1749 * All files and directories are readable.
1750 * Directories and special files, e.g. "CON", cannot be
1752 * [Comment by Tom Dinger -- a directory can have the write-protect
1753 * bit set in the file system, but DOS permits changes to
1754 * the directory anyway. In addition, all bets are off
1755 * here for networked software, such as Novell and
1759 /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat
1760 * too so it will actually look into the files for magic numbers
1762 return (mode & statbufp->st_mode) ? TRUE : FALSE;
1764 #else /* ! DOSISH */
1765 if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */
1766 if (mode == S_IXUSR) {
1767 if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode))
1771 return TRUE; /* root reads and writes anything */
1774 if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) {
1775 if (statbufp->st_mode & mode)
1776 return TRUE; /* ok as "user" */
1778 else if (ingroup(statbufp->st_gid,effective)) {
1779 if (statbufp->st_mode & mode >> 3)
1780 return TRUE; /* ok as "group" */
1782 else if (statbufp->st_mode & mode >> 6)
1783 return TRUE; /* ok as "other" */
1785 #endif /* ! DOSISH */
1790 Perl_ingroup(pTHX_ Gid_t testgid, Uid_t effective)
1792 #ifdef MACOS_TRADITIONAL
1793 /* This is simply not correct for AppleShare, but fix it yerself. */
1796 if (testgid == (effective ? PL_egid : PL_gid))
1798 #ifdef HAS_GETGROUPS
1803 Groups_t gary[NGROUPS];
1806 anum = getgroups(NGROUPS,gary);
1808 if (gary[anum] == testgid)
1816 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
1819 Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp)
1824 key = (key_t)SvNVx(*++mark);
1825 n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark);
1826 flags = SvIVx(*++mark);
1832 return msgget(key, flags);
1836 return semget(key, n, flags);
1840 return shmget(key, n, flags);
1842 #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM)
1844 Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
1847 return -1; /* should never happen */
1851 Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp)
1855 I32 id, n, cmd, infosize, getinfo;
1858 id = SvIVx(*++mark);
1859 n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0;
1860 cmd = SvIVx(*++mark);
1863 getinfo = (cmd == IPC_STAT);
1869 if (cmd == IPC_STAT || cmd == IPC_SET)
1870 infosize = sizeof(struct msqid_ds);
1875 if (cmd == IPC_STAT || cmd == IPC_SET)
1876 infosize = sizeof(struct shmid_ds);
1882 if (cmd == IPC_STAT || cmd == IPC_SET)
1883 infosize = sizeof(struct semid_ds);
1884 else if (cmd == GETALL || cmd == SETALL)
1886 struct semid_ds semds;
1888 #ifdef EXTRA_F_IN_SEMUN_BUF
1889 semun.buff = &semds;
1893 getinfo = (cmd == GETALL);
1894 if (Semctl(id, 0, IPC_STAT, semun) == -1)
1896 infosize = semds.sem_nsems * sizeof(short);
1897 /* "short" is technically wrong but much more portable
1898 than guessing about u_?short(_t)? */
1901 Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
1905 #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM)
1907 Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
1916 SvPV_force(astr, len);
1917 a = SvGROW(astr, infosize+1);
1921 a = SvPV(astr, len);
1922 if (len != infosize)
1923 Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld",
1932 a = INT2PTR(char *,i); /* ouch */
1939 ret = msgctl(id, cmd, (struct msqid_ds *)a);
1945 union semun unsemds;
1947 #ifdef EXTRA_F_IN_SEMUN_BUF
1948 unsemds.buff = (struct semid_ds *)a;
1950 unsemds.buf = (struct semid_ds *)a;
1952 ret = Semctl(id, n, cmd, unsemds);
1954 Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]);
1961 ret = shmctl(id, cmd, (struct shmid_ds *)a);
1965 if (getinfo && ret >= 0) {
1966 SvCUR_set(astr, infosize);
1967 *SvEND(astr) = '\0';
1974 Perl_do_msgsnd(pTHX_ SV **mark, SV **sp)
1979 I32 id, msize, flags;
1982 id = SvIVx(*++mark);
1984 flags = SvIVx(*++mark);
1985 mbuf = SvPV(mstr, len);
1986 if ((msize = len - sizeof(long)) < 0)
1987 Perl_croak(aTHX_ "Arg too short for msgsnd");
1989 return msgsnd(id, (struct msgbuf *)mbuf, msize, flags);
1991 Perl_croak(aTHX_ "msgsnd not implemented");
1996 Perl_do_msgrcv(pTHX_ SV **mark, SV **sp)
2002 I32 id, msize, flags, ret;
2005 id = SvIVx(*++mark);
2007 /* suppress warning when reading into undef var --jhi */
2009 sv_setpvn(mstr, "", 0);
2010 msize = SvIVx(*++mark);
2011 mtype = (long)SvIVx(*++mark);
2012 flags = SvIVx(*++mark);
2013 SvPV_force(mstr, len);
2014 mbuf = SvGROW(mstr, sizeof(long)+msize+1);
2017 ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags);
2019 SvCUR_set(mstr, sizeof(long)+ret);
2020 *SvEND(mstr) = '\0';
2021 #ifndef INCOMPLETE_TAINTS
2022 /* who knows who has been playing with this message? */
2028 Perl_croak(aTHX_ "msgrcv not implemented");
2033 Perl_do_semop(pTHX_ SV **mark, SV **sp)
2041 id = SvIVx(*++mark);
2043 opbuf = SvPV(opstr, opsize);
2044 if (opsize < 3 * SHORTSIZE
2045 || (opsize % (3 * SHORTSIZE))) {
2046 SETERRNO(EINVAL,LIB$_INVARG);
2050 /* We can't assume that sizeof(struct sembuf) == 3 * sizeof(short). */
2052 int nsops = opsize / (3 * sizeof (short));
2054 short *ops = (short *) opbuf;
2056 struct sembuf *temps, *t;
2059 New (0, temps, nsops, struct sembuf);
2067 result = semop(id, temps, nsops);
2081 Perl_croak(aTHX_ "semop not implemented");
2086 Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp)
2091 I32 id, mpos, msize;
2093 struct shmid_ds shmds;
2095 id = SvIVx(*++mark);
2097 mpos = SvIVx(*++mark);
2098 msize = SvIVx(*++mark);
2100 if (shmctl(id, IPC_STAT, &shmds) == -1)
2102 if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) {
2103 SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */
2106 shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0);
2107 if (shm == (char *)-1) /* I hate System V IPC, I really do */
2109 if (optype == OP_SHMREAD) {
2110 /* suppress warning when reading into undef var (tchrist 3/Mar/00) */
2112 sv_setpvn(mstr, "", 0);
2113 SvPV_force(mstr, len);
2114 mbuf = SvGROW(mstr, msize+1);
2116 Copy(shm + mpos, mbuf, msize, char);
2117 SvCUR_set(mstr, msize);
2118 *SvEND(mstr) = '\0';
2120 #ifndef INCOMPLETE_TAINTS
2121 /* who knows who has been playing with this shared memory? */
2128 mbuf = SvPV(mstr, len);
2129 if ((n = len) > msize)
2131 Copy(mbuf, shm + mpos, n, char);
2133 memzero(shm + mpos + n, msize - n);
2137 Perl_croak(aTHX_ "shm I/O not implemented");
2141 #endif /* SYSV IPC */
2146 =for apidoc start_glob
2148 Function called by C<do_readline> to spawn a glob (or do the glob inside
2149 perl on VMS). This code used to be inline, but now perl uses C<File::Glob>
2150 this glob starter is only used by miniperl during the build process.
2151 Moving it away shrinks pp_hot.c; shrinking pp_hot.c helps speed perl up.
2157 Perl_start_glob (pTHX_ SV *tmpglob, IO *io)
2159 SV *tmpcmd = NEWSV(55, 0);
2163 #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */
2164 /* since spawning off a process is a real performance hit */
2166 #include <descrip.h>
2167 #include <lib$routines.h>
2170 char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'};
2171 char vmsspec[NAM$C_MAXRSS+1];
2172 char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp;
2173 $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;");
2176 struct dsc$descriptor_s wilddsc
2177 = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
2178 struct dsc$descriptor_vs rsdsc
2179 = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt};
2180 unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0;
2182 /* We could find out if there's an explicit dev/dir or version
2183 by peeking into lib$find_file's internal context at
2184 ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb
2185 but that's unsupported, so I don't want to do it now and
2186 have it bite someone in the future. */
2187 cp = SvPV(tmpglob,i);
2189 if (cp[i] == ';') hasver = 1;
2191 if (sts) hasver = 1;
2195 hasdir = isunix = 1;
2198 if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') {
2203 if ((tmpfp = PerlIO_tmpfile()) != NULL) {
2205 if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode))
2206 ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL);
2207 else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
2208 if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer);
2209 for (cp=wilddsc.dsc$a_pointer; ok && cp && *cp; cp++)
2210 if (*cp == '?') *cp = '%'; /* VMS style single-char wildcard */
2211 while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt,
2212 &dfltdsc,NULL,NULL,NULL))&1)) {
2213 end = rstr + (unsigned long int) *rslt;
2214 if (!hasver) while (*end != ';') end--;
2215 *(end++) = '\n'; *end = '\0';
2216 for (cp = rstr; *cp; cp++) *cp = _tolower(*cp);
2218 if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1);
2223 while (*(--begin) != ']' && *begin != '>') ;
2226 ok = (PerlIO_puts(tmpfp,begin) != EOF);
2228 if (cxt) (void)lib$find_file_end(&cxt);
2229 if (ok && sts != RMS$_NMF &&
2230 sts != RMS$_DNF && sts != RMS$_FNF) ok = 0;
2233 SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts);
2235 PerlIO_close(tmpfp);
2239 PerlIO_rewind(tmpfp);
2240 IoTYPE(io) = IoTYPE_RDONLY;
2241 IoIFP(io) = fp = tmpfp;
2242 IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */
2247 #ifdef MACOS_TRADITIONAL
2248 sv_setpv(tmpcmd, "glob ");
2249 sv_catsv(tmpcmd, tmpglob);
2250 sv_catpv(tmpcmd, " |");
2254 sv_setpv(tmpcmd, "for a in ");
2255 sv_catsv(tmpcmd, tmpglob);
2256 sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |");
2259 sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */
2260 sv_catsv(tmpcmd, tmpglob);
2262 sv_setpv(tmpcmd, "perlglob ");
2263 sv_catsv(tmpcmd, tmpglob);
2264 sv_catpv(tmpcmd, " |");
2269 sv_setpvn(tmpcmd, PL_cshname, PL_cshlen);
2270 sv_catpv(tmpcmd, " -cf 'set nonomatch; glob ");
2271 sv_catsv(tmpcmd, tmpglob);
2272 sv_catpv(tmpcmd, "' 2>/dev/null |");
2274 sv_setpv(tmpcmd, "echo ");
2275 sv_catsv(tmpcmd, tmpglob);
2277 sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|");
2279 sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|");
2282 #endif /* !DOSISH */
2283 #endif /* MACOS_TRADITIONAL */
2284 (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd),
2285 FALSE, O_RDONLY, 0, Nullfp);