-/* $Header: doio.c,v 3.0.1.5 90/02/28 17:01:36 lwall Locked $
+/* doio.c
*
- * Copyright (c) 1989, Larry Wall
+ * Copyright (c) 1991-1997, Larry Wall
*
- * You may distribute under the terms of the GNU General Public License
- * as specified in the README file that comes with the perl 3.0 kit.
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Artistic License, as specified in the README file.
*
- * $Log: doio.c,v $
- * Revision 3.0.1.5 90/02/28 17:01:36 lwall
- * patch9: open(FOO,"$filename\0") will now protect trailing spaces in filename
- * patch9: removed obsolete checks to avoid opening block devices
- * patch9: removed references to acusec and modusec that some utime.h's have
- * patch9: added pipe function
- *
- * Revision 3.0.1.4 89/12/21 19:55:10 lwall
- * patch7: select now works on big-endian machines
- * patch7: errno may now be a macro with an lvalue
- * patch7: ANSI strerror() is now supported
- * patch7: Configure now detects DG/UX thingies like [sg]etpgrp2 and utime.h
- *
- * Revision 3.0.1.3 89/11/17 15:13:06 lwall
- * patch5: some systems have symlink() but not lstat()
- * patch5: some systems have dirent.h but not readdir()
- *
- * Revision 3.0.1.2 89/11/11 04:25:51 lwall
- * patch2: orthogonalized the file modes some so we can have <& +<& etc.
- * patch2: do_open() now detects sockets passed to process from parent
- * patch2: fd's above 2 are now closed on exec
- * patch2: csh code can now use csh from other than /bin
- * patch2: getsockopt, get{sock,peer}name didn't define result properly
- * patch2: warn("shutdown") was replicated
- * patch2: gethostbyname was misdeclared
- * patch2: telldir() is sometimes a macro
- *
- * Revision 3.0.1.1 89/10/26 23:10:05 lwall
- * patch1: Configure now checks for BSD shadow passwords
- *
- * Revision 3.0 89/10/18 15:10:54 lwall
- * 3.0 baseline
- *
+ */
+
+/*
+ * "Far below them they saw the white waters pour into a foaming bowl, and
+ * then swirl darkly about a deep oval basin in the rocks, until they found
+ * their way out again through a narrow gate, and flowed away, fuming and
+ * chattering, into calmer and more level reaches."
*/
#include "EXTERN.h"
#include "perl.h"
-#ifdef SOCKET
-#include <sys/socket.h>
-#include <netdb.h>
+#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
+#include <sys/ipc.h>
+#ifdef HAS_MSG
+#include <sys/msg.h>
#endif
-
-#ifdef I_PWD
-#include <pwd.h>
+#ifdef HAS_SEM
+#include <sys/sem.h>
+#endif
+#ifdef HAS_SHM
+#include <sys/shm.h>
+# ifndef HAS_SHMAT_PROTOTYPE
+ extern Shmat_t shmat _((int, char *, int));
+# endif
#endif
-#ifdef I_GRP
-#include <grp.h>
#endif
+
#ifdef I_UTIME
-#include <utime.h>
+# if defined(_MSC_VER) || defined(__MINGW32__)
+# include <sys/utime.h>
+# else
+# include <utime.h>
+# endif
+#endif
+
+#ifdef I_FCNTL
+#include <fcntl.h>
+#endif
+#ifdef I_SYS_FILE
+#include <sys/file.h>
+#endif
+#ifdef O_EXCL
+# define OPEN_EXCL O_EXCL
+#else
+# define OPEN_EXCL 0
+#endif
+
+#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
+#include <signal.h>
+#endif
+
+/* XXX If this causes problems, set i_unistd=undef in the hint file. */
+#ifdef I_UNISTD
+# include <unistd.h>
+#endif
+
+#if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
+# include <sys/socket.h>
+# include <netdb.h>
+# ifndef ENOTSOCK
+# ifdef I_NET_ERRNO
+# include <net/errno.h>
+# endif
+# endif
+#endif
+
+/* Put this after #includes because <unistd.h> defines _XOPEN_*. */
+#ifndef Sock_size_t
+# if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED) || defined(__GLIBC__)
+# define Sock_size_t Size_t
+# else
+# define Sock_size_t int
+# endif
#endif
bool
-do_open(stab,name,len)
-STAB *stab;
-register char *name;
-int len;
+do_open(GV *gv, register char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp)
{
- FILE *fp;
- register STIO *stio = stab_io(stab);
- char *myname = savestr(name);
- int result;
- int fd;
+ register IO *io = GvIOn(gv);
+ PerlIO *saveifp = Nullfp;
+ PerlIO *saveofp = Nullfp;
+ char savetype = ' ';
int writing = 0;
- char mode[3]; /* stdio file mode ("r\0" or "r+\0") */
+ PerlIO *fp;
+ int fd;
+ int result;
+ bool was_fdopen = FALSE;
- name = myname;
forkprocess = 1; /* assume true if no fork */
- while (len && isspace(name[len-1]))
- name[--len] = '\0';
- if (!stio)
- stio = stab_io(stab) = stio_new();
- else if (stio->ifp) {
- fd = fileno(stio->ifp);
- if (stio->type == '|')
- result = mypclose(stio->ifp);
- else if (stio->ifp != stio->ofp) {
- if (stio->ofp)
- fclose(stio->ofp);
- result = fclose(stio->ifp);
+
+ if (IoIFP(io)) {
+ fd = PerlIO_fileno(IoIFP(io));
+ if (IoTYPE(io) == '-')
+ result = 0;
+ else if (fd <= maxsysfd) {
+ saveifp = IoIFP(io);
+ saveofp = IoOFP(io);
+ savetype = IoTYPE(io);
+ result = 0;
+ }
+ else if (IoTYPE(io) == '|')
+ result = PerlProc_pclose(IoIFP(io));
+ else if (IoIFP(io) != IoOFP(io)) {
+ if (IoOFP(io)) {
+ result = PerlIO_close(IoOFP(io));
+ PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */
+ }
+ else
+ result = PerlIO_close(IoIFP(io));
}
- else if (stio->type != '-')
- result = fclose(stio->ifp);
else
- result = 0;
- if (result == EOF && fd > 2)
- fprintf(stderr,"Warning: unable to close filehandle %s properly.\n",
- stab_name(stab));
- stio->ofp = stio->ifp = Nullfp;
- }
- if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */
- mode[1] = *name++;
- mode[2] = '\0';
- --len;
- writing = 1;
- }
- else {
- mode[1] = '\0';
- }
- stio->type = *name;
- if (*name == '|') {
- for (name++; isspace(*name); name++) ;
-#ifdef TAINT
- taintenv();
- taintproper("Insecure dependency in piped open");
+ result = PerlIO_close(IoIFP(io));
+ if (result == EOF && fd > maxsysfd)
+ PerlIO_printf(PerlIO_stderr(), "Warning: unable to close filehandle %s properly.\n",
+ GvENAME(gv));
+ IoOFP(io) = IoIFP(io) = Nullfp;
+ }
+
+ if (as_raw) {
+ result = rawmode & 3;
+ IoTYPE(io) = "<>++"[result];
+ writing = (result > 0);
+ fd = PerlLIO_open3(name, rawmode, rawperm);
+ if (fd == -1)
+ fp = NULL;
+ else {
+ char *fpmode;
+ if (result == 0)
+ fpmode = "r";
+#ifdef O_APPEND
+ else if (rawmode & O_APPEND)
+ fpmode = (result == 1) ? "a" : "a+";
#endif
- fp = mypopen(name,"w");
- writing = 1;
+ else
+ fpmode = (result == 1) ? "w" : "r+";
+ fp = PerlIO_fdopen(fd, fpmode);
+ if (!fp)
+ PerlLIO_close(fd);
+ }
}
- else if (*name == '>') {
-#ifdef TAINT
- taintproper("Insecure dependency in open");
-#endif
- name++;
- if (*name == '>') {
- mode[0] = stio->type = 'a';
- name++;
+ else {
+ char *myname;
+ char mode[3]; /* stdio file mode ("r\0" or "r+\0") */
+ int dodup;
+
+ myname = savepvn(name, len);
+ SAVEFREEPV(myname);
+ name = myname;
+ while (len && isSPACE(name[len-1]))
+ name[--len] = '\0';
+
+ mode[0] = mode[1] = mode[2] = '\0';
+ IoTYPE(io) = *name;
+ if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */
+ mode[1] = *name++;
+ --len;
+ writing = 1;
}
- else
- mode[0] = 'w';
- writing = 1;
- if (*name == '&') {
- duplicity:
+
+ if (*name == '|') {
+ /*SUPPRESS 530*/
+ for (name++; isSPACE(*name); name++) ;
+ if (strNE(name,"-"))
+ TAINT_ENV();
+ TAINT_PROPER("piped open");
+ if (name[strlen(name)-1] == '|') {
+ name[strlen(name)-1] = '\0' ;
+ if (dowarn)
+ warn("Can't do bidirectional pipe");
+ }
+ fp = PerlProc_popen(name,"w");
+ writing = 1;
+ }
+ else if (*name == '>') {
+ TAINT_PROPER("open");
name++;
- while (isspace(*name))
+ if (*name == '>') {
+ mode[0] = IoTYPE(io) = 'a';
name++;
- if (isdigit(*name))
- fd = atoi(name);
- else {
- stab = stabent(name,FALSE);
- if (!stab || !stab_io(stab))
- return FALSE;
- if (stab_io(stab) && stab_io(stab)->ifp) {
- fd = fileno(stab_io(stab)->ifp);
- if (stab_io(stab)->type == 's')
- stio->type = 's';
- }
- else
- fd = -1;
}
- fp = fdopen(dup(fd),mode);
- }
- else {
- while (isspace(*name))
+ else
+ mode[0] = 'w';
+ writing = 1;
+
+ if (*name == '&') {
+ duplicity:
+ dodup = 1;
name++;
- if (strEQ(name,"-")) {
- fp = stdout;
- stio->type = '-';
+ if (*name == '=') {
+ dodup = 0;
+ name++;
+ }
+ if (!*name && supplied_fp)
+ fp = supplied_fp;
+ else {
+ /*SUPPRESS 530*/
+ for (; isSPACE(*name); name++) ;
+ if (isDIGIT(*name))
+ fd = atoi(name);
+ else {
+ IO* thatio;
+ gv = gv_fetchpv(name,FALSE,SVt_PVIO);
+ thatio = GvIO(gv);
+ if (!thatio) {
+#ifdef EINVAL
+ SETERRNO(EINVAL,SS$_IVCHAN);
+#endif
+ goto say_false;
+ }
+ if (IoIFP(thatio)) {
+ fd = PerlIO_fileno(IoIFP(thatio));
+ if (IoTYPE(thatio) == 's')
+ IoTYPE(io) = 's';
+ }
+ else
+ fd = -1;
+ }
+ if (dodup)
+ fd = PerlLIO_dup(fd);
+ else
+ was_fdopen = TRUE;
+ if (!(fp = PerlIO_fdopen(fd,mode))) {
+ if (dodup)
+ PerlLIO_close(fd);
+ }
+ }
}
- else {
- fp = fopen(name,mode);
+ else {
+ /*SUPPRESS 530*/
+ for (; isSPACE(*name); name++) ;
+ if (strEQ(name,"-")) {
+ fp = PerlIO_stdout();
+ IoTYPE(io) = '-';
+ }
+ else {
+ fp = PerlIO_open(name,mode);
+ }
}
}
- }
- else {
- if (*name == '<') {
+ else if (*name == '<') {
+ /*SUPPRESS 530*/
+ for (name++; isSPACE(*name); name++) ;
mode[0] = 'r';
- name++;
- while (isspace(*name))
- name++;
if (*name == '&')
goto duplicity;
if (strEQ(name,"-")) {
- fp = stdin;
- stio->type = '-';
+ fp = PerlIO_stdin();
+ IoTYPE(io) = '-';
}
else
- fp = fopen(name,mode);
+ fp = PerlIO_open(name,mode);
}
else if (name[len-1] == '|') {
-#ifdef TAINT
- taintenv();
- taintproper("Insecure dependency in piped open");
-#endif
name[--len] = '\0';
- while (len && isspace(name[len-1]))
+ while (len && isSPACE(name[len-1]))
name[--len] = '\0';
- for (; isspace(*name); name++) ;
- fp = mypopen(name,"r");
- stio->type = '|';
+ /*SUPPRESS 530*/
+ for (; isSPACE(*name); name++) ;
+ if (strNE(name,"-"))
+ TAINT_ENV();
+ TAINT_PROPER("piped open");
+ fp = PerlProc_popen(name,"r");
+ IoTYPE(io) = '|';
}
else {
- stio->type = '<';
- for (; isspace(*name); name++) ;
+ IoTYPE(io) = '<';
+ /*SUPPRESS 530*/
+ for (; isSPACE(*name); name++) ;
if (strEQ(name,"-")) {
- fp = stdin;
- stio->type = '-';
+ fp = PerlIO_stdin();
+ IoTYPE(io) = '-';
}
else
- fp = fopen(name,"r");
+ fp = PerlIO_open(name,"r");
}
}
- Safefree(myname);
- if (!fp)
- return FALSE;
- if (stio->type &&
- stio->type != '|' && stio->type != '-') {
- if (fstat(fileno(fp),&statbuf) < 0) {
- (void)fclose(fp);
- return FALSE;
+ if (!fp) {
+ if (dowarn && IoTYPE(io) == '<' && strchr(name, '\n'))
+ warn(warn_nl, "open");
+ goto say_false;
+ }
+ if (IoTYPE(io) &&
+ IoTYPE(io) != '|' && IoTYPE(io) != '-') {
+ dTHR;
+ if (PerlLIO_fstat(PerlIO_fileno(fp),&statbuf) < 0) {
+ (void)PerlIO_close(fp);
+ goto say_false;
+ }
+ if (S_ISSOCK(statbuf.st_mode))
+ IoTYPE(io) = 's'; /* in case a socket was passed in to us */
+#ifdef HAS_SOCKET
+ else if (
+#ifdef S_IFMT
+ !(statbuf.st_mode & S_IFMT)
+#else
+ !statbuf.st_mode
+#endif
+ ) {
+ char tmpbuf[256];
+ Sock_size_t buflen = sizeof tmpbuf;
+ if (PerlSock_getsockname(PerlIO_fileno(fp), (struct sockaddr *)tmpbuf,
+ &buflen) >= 0
+ || errno != ENOTSOCK)
+ IoTYPE(io) = 's'; /* some OS's return 0 on fstat()ed socket */
+ /* but some return 0 for streams too, sigh */
}
- result = (statbuf.st_mode & S_IFMT);
-#ifdef S_IFSOCK
- if (result == S_IFSOCK || result == 0)
- stio->type = 's'; /* in case a socket was passed in to us */
#endif
}
-#if defined(FCNTL) && defined(F_SETFD)
- fd = fileno(fp);
- if (fd >= 3)
- fcntl(fd,F_SETFD,1);
+ if (saveifp) { /* must use old fp? */
+ fd = PerlIO_fileno(saveifp);
+ if (saveofp) {
+ PerlIO_flush(saveofp); /* emulate PerlIO_close() */
+ if (saveofp != saveifp) { /* was a socket? */
+ PerlIO_close(saveofp);
+ if (fd > 2)
+ Safefree(saveofp);
+ }
+ }
+ if (fd != PerlIO_fileno(fp)) {
+ int pid;
+ SV *sv;
+
+ PerlLIO_dup2(PerlIO_fileno(fp), fd);
+ sv = *av_fetch(fdpid,PerlIO_fileno(fp),TRUE);
+ (void)SvUPGRADE(sv, SVt_IV);
+ pid = SvIVX(sv);
+ SvIVX(sv) = 0;
+ sv = *av_fetch(fdpid,fd,TRUE);
+ (void)SvUPGRADE(sv, SVt_IV);
+ SvIVX(sv) = pid;
+ if (!was_fdopen)
+ PerlIO_close(fp);
+
+ }
+ fp = saveifp;
+ PerlIO_clearerr(fp);
+ }
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ fd = PerlIO_fileno(fp);
+ fcntl(fd,F_SETFD,fd > maxsysfd);
#endif
- stio->ifp = fp;
+ IoIFP(io) = fp;
if (writing) {
- if (stio->type != 's')
- stio->ofp = fp;
+ dTHR;
+ if (IoTYPE(io) == 's'
+ || (IoTYPE(io) == '>' && S_ISCHR(statbuf.st_mode)) ) {
+ if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),"w"))) {
+ PerlIO_close(fp);
+ IoIFP(io) = Nullfp;
+ goto say_false;
+ }
+ }
else
- stio->ofp = fdopen(fileno(fp),"w");
+ IoOFP(io) = fp;
}
return TRUE;
+
+say_false:
+ IoIFP(io) = saveifp;
+ IoOFP(io) = saveofp;
+ IoTYPE(io) = savetype;
+ return FALSE;
}
-FILE *
-nextargv(stab)
-register STAB *stab;
+PerlIO *
+nextargv(register GV *gv)
{
- register STR *str;
- char *oldname;
- int filemode,fileuid,filegid;
-
- while (alen(stab_xarray(stab)) >= 0) {
- str = ashift(stab_xarray(stab));
- str_sset(stab_val(stab),str);
- STABSET(stab_val(stab));
- oldname = str_get(stab_val(stab));
- if (do_open(stab,oldname,stab_val(stab)->str_cur)) {
+ register SV *sv;
+#ifndef FLEXFILENAMES
+ int filedev;
+ int fileino;
+#endif
+ int fileuid;
+ int filegid;
+
+ if (!argvoutgv)
+ argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO);
+ if (filemode & (S_ISUID|S_ISGID)) {
+ PerlIO_flush(IoIFP(GvIOn(argvoutgv))); /* chmod must follow last write */
+#ifdef HAS_FCHMOD
+ (void)fchmod(lastfd,filemode);
+#else
+ (void)PerlLIO_chmod(oldname,filemode);
+#endif
+ }
+ filemode = 0;
+ while (av_len(GvAV(gv)) >= 0) {
+ dTHR;
+ STRLEN oldlen;
+ sv = av_shift(GvAV(gv));
+ SAVEFREESV(sv);
+ sv_setsv(GvSV(gv),sv);
+ SvSETMAGIC(GvSV(gv));
+ oldname = SvPVx(GvSV(gv), oldlen);
+ if (do_open(gv,oldname,oldlen,inplace!=0,0,0,Nullfp)) {
if (inplace) {
-#ifdef TAINT
- taintproper("Insecure dependency in inplace open");
+ TAINT_PROPER("inplace open");
+ if (oldlen == 1 && *oldname == '-') {
+ setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO));
+ return IoIFP(GvIOp(gv));
+ }
+#ifndef FLEXFILENAMES
+ filedev = statbuf.st_dev;
+ fileino = statbuf.st_ino;
#endif
filemode = statbuf.st_mode;
fileuid = statbuf.st_uid;
filegid = statbuf.st_gid;
+ if (!S_ISREG(filemode)) {
+ warn("Can't do inplace edit: %s is not a regular file",
+ oldname );
+ do_close(gv,FALSE);
+ continue;
+ }
if (*inplace) {
- str_cat(str,inplace);
-#ifdef RENAME
- (void)rename(oldname,str->str_ptr);
+#ifdef SUFFIX
+ add_suffix(sv,inplace);
+#else
+ sv_catpv(sv,inplace);
+#endif
+#ifndef FLEXFILENAMES
+ if (PerlLIO_stat(SvPVX(sv),&statbuf) >= 0
+ && statbuf.st_dev == filedev
+ && statbuf.st_ino == fileino
+#ifdef DJGPP
+ || (_djstat_fail_bits & _STFAIL_TRUENAME)!=0
+#endif
+ ) {
+ warn("Can't do inplace edit: %s would not be uniq",
+ SvPVX(sv) );
+ do_close(gv,FALSE);
+ continue;
+ }
+#endif
+#ifdef HAS_RENAME
+#ifndef DOSISH
+ if (PerlLIO_rename(oldname,SvPVX(sv)) < 0) {
+ warn("Can't rename %s to %s: %s, skipping file",
+ oldname, SvPVX(sv), Strerror(errno) );
+ do_close(gv,FALSE);
+ continue;
+ }
+#else
+ do_close(gv,FALSE);
+ (void)PerlLIO_unlink(SvPVX(sv));
+ (void)PerlLIO_rename(oldname,SvPVX(sv));
+ do_open(gv,SvPVX(sv),SvCUR(sv),inplace!=0,0,0,Nullfp);
+#endif /* DOSISH */
#else
- (void)UNLINK(str->str_ptr);
- (void)link(oldname,str->str_ptr);
+ (void)UNLINK(SvPVX(sv));
+ if (link(oldname,SvPVX(sv)) < 0) {
+ warn("Can't rename %s to %s: %s, skipping file",
+ oldname, SvPVX(sv), Strerror(errno) );
+ do_close(gv,FALSE);
+ continue;
+ }
(void)UNLINK(oldname);
#endif
}
else {
- (void)UNLINK(oldname);
+#if !defined(DOSISH) && !defined(AMIGAOS)
+# ifndef VMS /* Don't delete; use automatic file versioning */
+ if (UNLINK(oldname) < 0) {
+ warn("Can't remove %s: %s, skipping file",
+ oldname, Strerror(errno) );
+ do_close(gv,FALSE);
+ continue;
+ }
+# endif
+#else
+ croak("Can't do inplace edit without backup");
+#endif
}
- str_nset(str,">",1);
- str_cat(str,oldname);
- errno = 0; /* in case sprintf set errno */
- if (!do_open(argvoutstab,str->str_ptr,str->str_cur))
- fatal("Can't do inplace edit");
- defoutstab = argvoutstab;
-#ifdef FCHMOD
- (void)fchmod(fileno(stab_io(argvoutstab)->ifp),filemode);
+ sv_setpvn(sv,">",!inplace);
+ sv_catpvn(sv,oldname,oldlen);
+ SETERRNO(0,0); /* in case sprintf set errno */
+ if (!do_open(argvoutgv,SvPVX(sv),SvCUR(sv),inplace!=0,
+ O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) {
+ warn("Can't do inplace edit on %s: %s",
+ oldname, Strerror(errno) );
+ do_close(gv,FALSE);
+ continue;
+ }
+ setdefout(argvoutgv);
+ lastfd = PerlIO_fileno(IoIFP(GvIOp(argvoutgv)));
+ (void)PerlLIO_fstat(lastfd,&statbuf);
+#ifdef HAS_FCHMOD
+ (void)fchmod(lastfd,filemode);
#else
- (void)chmod(oldname,filemode);
+# if !(defined(WIN32) && defined(__BORLANDC__))
+ /* Borland runtime creates a readonly file! */
+ (void)PerlLIO_chmod(oldname,filemode);
+# endif
#endif
-#ifdef FCHOWN
- (void)fchown(fileno(stab_io(argvoutstab)->ifp),fileuid,filegid);
+ if (fileuid != statbuf.st_uid || filegid != statbuf.st_gid) {
+#ifdef HAS_FCHOWN
+ (void)fchown(lastfd,fileuid,filegid);
#else
- (void)chown(oldname,fileuid,filegid);
+#ifdef HAS_CHOWN
+ (void)chown(oldname,fileuid,filegid);
#endif
+#endif
+ }
}
- str_free(str);
- return stab_io(stab)->ifp;
+ return IoIFP(GvIOp(gv));
}
else
- fprintf(stderr,"Can't open %s\n",str_get(str));
- str_free(str);
+ PerlIO_printf(PerlIO_stderr(), "Can't open %s: %s\n",
+ SvPV(sv, na), Strerror(errno));
}
if (inplace) {
- (void)do_close(argvoutstab,FALSE);
- defoutstab = stabent("STDOUT",TRUE);
+ (void)do_close(argvoutgv,FALSE);
+ setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO));
}
return Nullfp;
}
+#ifdef HAS_PIPE
void
-do_pipe(str, rstab, wstab)
-STR *str;
-STAB *rstab;
-STAB *wstab;
+do_pipe(SV *sv, GV *rgv, GV *wgv)
{
- register STIO *rstio;
- register STIO *wstio;
+ register IO *rstio;
+ register IO *wstio;
int fd[2];
- if (!rstab)
+ if (!rgv)
goto badexit;
- if (!wstab)
+ if (!wgv)
goto badexit;
- rstio = stab_io(rstab);
- wstio = stab_io(wstab);
+ rstio = GvIOn(rgv);
+ wstio = GvIOn(wgv);
- if (!rstio)
- rstio = stab_io(rstab) = stio_new();
- else if (rstio->ifp)
- do_close(rstab,FALSE);
- if (!wstio)
- wstio = stab_io(wstab) = stio_new();
- else if (wstio->ifp)
- do_close(wstab,FALSE);
+ if (IoIFP(rstio))
+ do_close(rgv,FALSE);
+ if (IoIFP(wstio))
+ do_close(wgv,FALSE);
- if (pipe(fd) < 0)
+ if (PerlProc_pipe(fd) < 0)
goto badexit;
- rstio->ifp = fdopen(fd[0], "r");
- wstio->ofp = fdopen(fd[1], "w");
- wstio->ifp = wstio->ofp;
- rstio->type = '<';
- wstio->type = '>';
+ IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
+ IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
+ IoIFP(wstio) = IoOFP(wstio);
+ IoTYPE(rstio) = '<';
+ IoTYPE(wstio) = '>';
+ if (!IoIFP(rstio) || !IoOFP(wstio)) {
+ if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
+ else PerlLIO_close(fd[0]);
+ if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
+ else PerlLIO_close(fd[1]);
+ goto badexit;
+ }
- str_sset(str,&str_yes);
+ sv_setsv(sv,&sv_yes);
return;
badexit:
- str_sset(str,&str_undef);
+ sv_setsv(sv,&sv_undef);
return;
}
+#endif
+/* explicit renamed to avoid C++ conflict -- kja */
bool
-do_close(stab,explicit)
-STAB *stab;
-bool explicit;
+do_close(GV *gv, bool not_implicit)
{
- bool retval = FALSE;
- register STIO *stio = stab_io(stab);
- int status;
+ bool retval;
+ IO *io;
- if (!stio) { /* never opened */
- if (dowarn && explicit)
- warn("Close on unopened file <%s>",stab_name(stab));
+ if (!gv)
+ gv = argvgv;
+ if (!gv || SvTYPE(gv) != SVt_PVGV) {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return FALSE;
+ }
+ io = GvIO(gv);
+ if (!io) { /* never opened */
+ if (dowarn && not_implicit)
+ warn("Close on unopened file <%s>",GvENAME(gv));
+ SETERRNO(EBADF,SS$_IVCHAN);
return FALSE;
}
- if (stio->ifp) {
- if (stio->type == '|') {
- status = mypclose(stio->ifp);
- retval = (status >= 0);
- statusvalue = (unsigned)status & 0xffff;
+ retval = io_close(io);
+ if (not_implicit) {
+ IoLINES(io) = 0;
+ IoPAGE(io) = 0;
+ IoLINES_LEFT(io) = IoPAGE_LEN(io);
+ }
+ IoTYPE(io) = ' ';
+ return retval;
+}
+
+bool
+io_close(IO *io)
+{
+ bool retval = FALSE;
+ int status;
+
+ if (IoIFP(io)) {
+ if (IoTYPE(io) == '|') {
+ status = PerlProc_pclose(IoIFP(io));
+ STATUS_NATIVE_SET(status);
+ retval = (STATUS_POSIX == 0);
}
- else if (stio->type == '-')
+ else if (IoTYPE(io) == '-')
retval = TRUE;
else {
- if (stio->ofp && stio->ofp != stio->ifp) /* a socket */
- fclose(stio->ofp);
- retval = (fclose(stio->ifp) != EOF);
+ if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */
+ retval = (PerlIO_close(IoOFP(io)) != EOF);
+ PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */
+ }
+ else
+ retval = (PerlIO_close(IoIFP(io)) != EOF);
}
- stio->ofp = stio->ifp = Nullfp;
+ IoOFP(io) = IoIFP(io) = Nullfp;
+ }
+ else {
+ SETERRNO(EBADF,SS$_IVCHAN);
}
- if (explicit)
- stio->lines = 0;
- stio->type = ' ';
+
return retval;
}
bool
-do_eof(stab)
-STAB *stab;
+do_eof(GV *gv)
{
- register STIO *stio;
+ dTHR;
+ register IO *io;
int ch;
- if (!stab) { /* eof() */
- if (argvstab)
- stio = stab_io(argvstab);
- else
- return TRUE;
- }
- else
- stio = stab_io(stab);
+ io = GvIO(gv);
- if (!stio)
+ if (!io)
return TRUE;
- while (stio->ifp) {
+ while (IoIFP(io)) {
-#ifdef STDSTDIO /* (the code works without this) */
- if (stio->ifp->_cnt > 0) /* cheat a little, since */
- return FALSE; /* this is the most usual case */
-#endif
+ if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */
+ if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */
+ return FALSE; /* this is the most usual case */
+ }
- ch = getc(stio->ifp);
+ ch = PerlIO_getc(IoIFP(io));
if (ch != EOF) {
- (void)ungetc(ch, stio->ifp);
+ (void)PerlIO_ungetc(IoIFP(io),ch);
return FALSE;
}
- if (!stab) { /* not necessarily a real EOF yet? */
- if (!nextargv(argvstab)) /* get another fp handy */
+ if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) {
+ if (PerlIO_get_cnt(IoIFP(io)) < -1)
+ PerlIO_set_cnt(IoIFP(io),-1);
+ }
+ if (op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */
+ if (!nextargv(argvgv)) /* get another fp handy */
return TRUE;
}
else
}
long
-do_tell(stab)
-STAB *stab;
+do_tell(GV *gv)
{
- register STIO *stio;
-
- if (!stab)
- goto phooey;
-
- stio = stab_io(stab);
- if (!stio || !stio->ifp)
- goto phooey;
+ register IO *io;
+ register PerlIO *fp;
- if (feof(stio->ifp))
- (void)fseek (stio->ifp, 0L, 2); /* ultrix 1.2 workaround */
-
- return ftell(stio->ifp);
-
-phooey:
+ if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
+#ifdef ULTRIX_STDIO_BOTCH
+ if (PerlIO_eof(fp))
+ (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */
+#endif
+ return PerlIO_tell(fp);
+ }
if (dowarn)
warn("tell() on unopened file");
+ SETERRNO(EBADF,RMS$_IFI);
return -1L;
}
bool
-do_seek(stab, pos, whence)
-STAB *stab;
-long pos;
-int whence;
+do_seek(GV *gv, long int pos, int whence)
{
- register STIO *stio;
+ register IO *io;
+ register PerlIO *fp;
- if (!stab)
- goto nuts;
-
- stio = stab_io(stab);
- if (!stio || !stio->ifp)
- goto nuts;
-
- if (feof(stio->ifp))
- (void)fseek (stio->ifp, 0L, 2); /* ultrix 1.2 workaround */
-
- return fseek(stio->ifp, pos, whence) >= 0;
-
-nuts:
+ if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
+#ifdef ULTRIX_STDIO_BOTCH
+ if (PerlIO_eof(fp))
+ (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */
+#endif
+ return PerlIO_seek(fp, pos, whence) >= 0;
+ }
if (dowarn)
warn("seek() on unopened file");
+ SETERRNO(EBADF,RMS$_IFI);
return FALSE;
}
-int
-do_ctl(optype,stab,func,argstr)
-int optype;
-STAB *stab;
-int func;
-STR *argstr;
+long
+do_sysseek(GV *gv, long int pos, int whence)
{
- register STIO *stio;
- register char *s;
- int retval;
-
- if (!stab || !argstr)
- return -1;
- stio = stab_io(stab);
- if (!stio)
- return -1;
+ register IO *io;
+ register PerlIO *fp;
- if (argstr->str_pok || !argstr->str_nok) {
- if (!argstr->str_pok)
- s = str_get(argstr);
+ if (gv && (io = GvIO(gv)) && (fp = IoIFP(io)))
+ return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence);
+ if (dowarn)
+ warn("sysseek() on unopened file");
+ SETERRNO(EBADF,RMS$_IFI);
+ return -1L;
+}
-#ifdef IOCPARM_MASK
-#ifndef IOCPARM_LEN
-#define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
-#endif
-#endif
-#ifdef IOCPARM_LEN
- retval = IOCPARM_LEN(func); /* on BSDish systes we're safe */
+int
+do_binmode(PerlIO *fp, int iotype, int flag)
+{
+ if (flag != TRUE)
+ croak("panic: unsetting binmode"); /* Not implemented yet */
+#ifdef DOSISH
+#ifdef atarist
+ if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN))
+ return 1;
+ else
+ return 0;
#else
- retval = 256; /* otherwise guess at what's safe */
+ if (PerlLIO_setmode(PerlIO_fileno(fp), OP_BINARY) != -1) {
+#if defined(WIN32) && defined(__BORLANDC__)
+ /* The translation mode of the stream is maintained independent
+ * of the translation mode of the fd in the Borland RTL (heavy
+ * digging through their runtime sources reveal). User has to
+ * set the mode explicitly for the stream (though they don't
+ * document this anywhere). GSAR 97-5-24
+ */
+ PerlIO_seek(fp,0L,0);
+ fp->flags |= _F_BIN;
#endif
- if (argstr->str_cur < retval) {
- str_grow(argstr,retval+1);
- argstr->str_cur = retval;
- }
-
- s = argstr->str_ptr;
- s[argstr->str_cur] = 17; /* a little sanity check here */
- }
- else {
- retval = (int)str_gnum(argstr);
- s = (char*)retval; /* ouch */
+ return 1;
}
-
-#ifndef lint
- if (optype == O_IOCTL)
- retval = ioctl(fileno(stio->ifp), func, s);
else
-#ifdef I_FCNTL
- retval = fcntl(fileno(stio->ifp), func, s);
+ return 0;
+#endif
+#else
+#if defined(USEMYBINMODE)
+ if (my_binmode(fp,iotype) != NULL)
+ return 1;
+ else
+ return 0;
#else
- fatal("fcntl is not implemented");
+ return 1;
+#endif
#endif
-#else /* lint */
- retval = 0;
-#endif /* lint */
-
- if (argstr->str_pok) {
- if (s[argstr->str_cur] != 17)
- fatal("Return value overflowed string");
- s[argstr->str_cur] = 0; /* put our null back */
- }
- return retval;
}
-int
-do_stat(str,arg,gimme,arglast)
-STR *str;
-register ARG *arg;
-int gimme;
-int *arglast;
+#if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP)
+ /* code courtesy of William Kucharski */
+#define HAS_CHSIZE
+
+I32 my_chsize(fd, length)
+I32 fd; /* file descriptor */
+Off_t length; /* length to set file to */
{
- register ARRAY *ary = stack;
- register int sp = arglast[0] + 1;
- int max = 13;
- register int i;
-
- if ((arg[1].arg_type & A_MASK) == A_WORD) {
- tmpstab = arg[1].arg_ptr.arg_stab;
- if (tmpstab != defstab) {
- statstab = tmpstab;
- str_set(statname,"");
- if (!stab_io(tmpstab) ||
- fstat(fileno(stab_io(tmpstab)->ifp),&statcache) < 0) {
- max = 0;
- }
- }
- }
- else {
- str_sset(statname,ary->ary_array[sp]);
- statstab = Nullstab;
-#ifdef LSTAT
- if (arg->arg_type == O_LSTAT)
- i = lstat(str_get(statname),&statcache);
- else
-#endif
- i = stat(str_get(statname),&statcache);
- if (i < 0)
- max = 0;
- }
+ struct flock fl;
+ struct stat filebuf;
- if (gimme != G_ARRAY) {
- if (max)
- str_sset(str,&str_yes);
- else
- str_sset(str,&str_undef);
- STABSET(str);
- ary->ary_array[sp] = str;
- return sp;
- }
- sp--;
- if (max) {
-#ifndef lint
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_dev)));
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_ino)));
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_mode)));
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_nlink)));
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_uid)));
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_gid)));
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_rdev)));
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_size)));
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_atime)));
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_mtime)));
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_ctime)));
-#ifdef STATBLOCKS
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_blksize)));
- (void)astore(ary,++sp,
- str_2static(str_nmake((double)statcache.st_blocks)));
-#else
- (void)astore(ary,++sp,
- str_2static(str_make("",0)));
- (void)astore(ary,++sp,
- str_2static(str_make("",0)));
-#endif
-#else /* lint */
- (void)astore(ary,++sp,str_nmake(0.0));
-#endif /* lint */
- }
- return sp;
-}
+ if (PerlLIO_fstat(fd, &filebuf) < 0)
+ return -1;
-int
-looks_like_number(str)
-STR *str;
-{
- register char *s;
- register char *send;
+ if (filebuf.st_size < length) {
- if (!str->str_pok)
- return TRUE;
- s = str->str_ptr;
- send = s + str->str_cur;
- while (isspace(*s))
- s++;
- if (s >= send)
- return FALSE;
- if (*s == '+' || *s == '-')
- s++;
- while (isdigit(*s))
- s++;
- if (s == send)
- return TRUE;
- if (*s == '.')
- s++;
- else if (s == str->str_ptr)
- return FALSE;
- while (isdigit(*s))
- s++;
- if (s == send)
- return TRUE;
- if (*s == 'e' || *s == 'E') {
- s++;
- if (*s == '+' || *s == '-')
- s++;
- while (isdigit(*s))
- s++;
- }
- while (isspace(*s))
- s++;
- if (s >= send)
- return TRUE;
- return FALSE;
-}
+ /* extend file length */
-bool
-do_print(str,fp)
-register STR *str;
-FILE *fp;
-{
- register char *tmps;
+ if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0)
+ return -1;
- if (!fp) {
- if (dowarn)
- warn("print to unopened file");
- return FALSE;
+ /* write a "0" byte */
+
+ if ((PerlLIO_write(fd, "", 1)) != 1)
+ return -1;
}
- if (!str)
- return FALSE;
- if (ofmt &&
- ((str->str_nok && str->str_u.str_nval != 0.0)
- || (looks_like_number(str) && str_gnum(str) != 0.0) ) )
- fprintf(fp, ofmt, str->str_u.str_nval);
else {
- tmps = str_get(str);
- if (*tmps == 'S' && tmps[1] == 't' && tmps[2] == 'a' && tmps[3] == 'b'
- && str->str_cur == sizeof(STBP) && strlen(tmps) < str->str_cur) {
- tmps = stab_name(((STAB*)str)); /* a stab value, be nice */
- str = ((STAB*)str)->str_magic;
- putc('*',fp);
- }
- if (str->str_cur && fwrite(tmps,1,str->str_cur,fp) == 0)
- return FALSE;
+ /* truncate length */
+
+ fl.l_whence = 0;
+ fl.l_len = 0;
+ fl.l_start = length;
+ fl.l_type = F_WRLCK; /* write lock on file space */
+
+ /*
+ * This relies on the UNDOCUMENTED F_FREESP argument to
+ * fcntl(2), which truncates the file so that it ends at the
+ * position indicated by fl.l_start.
+ *
+ * Will minor miracles never cease?
+ */
+
+ if (fcntl(fd, F_FREESP, &fl) < 0)
+ return -1;
+
}
- return TRUE;
+
+ return 0;
}
+#endif /* F_FREESP */
bool
-do_aprint(arg,fp,arglast)
-register ARG *arg;
-register FILE *fp;
-int *arglast;
+do_print(register SV *sv, PerlIO *fp)
{
- register STR **st = stack->ary_array;
- register int sp = arglast[1];
- register int retval;
- register int items = arglast[2] - sp;
+ register char *tmps;
+ STRLEN len;
- if (!fp) {
- if (dowarn)
- warn("print to unopened file");
- return FALSE;
- }
- st += ++sp;
- if (arg->arg_type == O_PRTF) {
- do_sprintf(arg->arg_ptr.arg_str,items,st);
- retval = do_print(arg->arg_ptr.arg_str,fp);
+ /* assuming fp is checked earlier */
+ if (!sv)
+ return TRUE;
+ if (ofmt) {
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
+ if (SvIOK(sv) && SvIVX(sv) != 0) {
+ PerlIO_printf(fp, ofmt, (double)SvIVX(sv));
+ return !PerlIO_error(fp);
+ }
+ if ( (SvNOK(sv) && SvNVX(sv) != 0.0)
+ || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) {
+ PerlIO_printf(fp, ofmt, SvNVX(sv));
+ return !PerlIO_error(fp);
+ }
}
- else {
- retval = (items <= 0);
- for (; items > 0; items--,st++) {
- if (retval && ofslen) {
- if (fwrite(ofs, 1, ofslen, fp) == 0) {
- retval = FALSE;
- break;
- }
- }
- if (!(retval = do_print(*st, fp)))
- break;
+ switch (SvTYPE(sv)) {
+ case SVt_NULL:
+ if (dowarn)
+ warn(warn_uninit);
+ return TRUE;
+ case SVt_IV:
+ if (SvIOK(sv)) {
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
+ PerlIO_printf(fp, "%ld", (long)SvIVX(sv));
+ return !PerlIO_error(fp);
}
- if (retval && orslen)
- if (fwrite(ors, 1, orslen, fp) == 0)
- retval = FALSE;
+ /* FALL THROUGH */
+ default:
+ tmps = SvPV(sv, len);
+ break;
}
- return retval;
+ if (len && (PerlIO_write(fp,tmps,len) == 0 || PerlIO_error(fp)))
+ return FALSE;
+ return !PerlIO_error(fp);
}
-int
-mystat(arg,str)
-ARG *arg;
-STR *str;
+I32
+my_stat(ARGSproto)
{
- STIO *stio;
-
- if (arg[1].arg_type & A_DONT) {
- stio = stab_io(arg[1].arg_ptr.arg_stab);
- if (stio && stio->ifp) {
- statstab = arg[1].arg_ptr.arg_stab;
- str_set(statname,"");
- return fstat(fileno(stio->ifp), &statcache);
+ djSP;
+ IO *io;
+ GV* tmpgv;
+
+ if (op->op_flags & OPf_REF) {
+ EXTEND(SP,1);
+ tmpgv = cGVOP->op_gv;
+ do_fstat:
+ io = GvIO(tmpgv);
+ if (io && IoIFP(io)) {
+ statgv = tmpgv;
+ sv_setpv(statname,"");
+ laststype = OP_STAT;
+ return (laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &statcache));
}
else {
- if (arg[1].arg_ptr.arg_stab == defstab)
- return 0;
+ if (tmpgv == defgv)
+ return laststatval;
if (dowarn)
warn("Stat on unopened file <%s>",
- stab_name(arg[1].arg_ptr.arg_stab));
- statstab = Nullstab;
- str_set(statname,"");
- return -1;
+ GvENAME(tmpgv));
+ statgv = Nullgv;
+ sv_setpv(statname,"");
+ return (laststatval = -1);
}
}
else {
- statstab = Nullstab;
- str_sset(statname,str);
- return stat(str_get(str),&statcache);
- }
-}
-
-STR *
-do_fttext(arg,str)
-register ARG *arg;
-STR *str;
-{
- int i;
- int len;
- int odd = 0;
- STDCHAR tbuf[512];
- register STDCHAR *s;
- register STIO *stio;
-
- if (arg[1].arg_type & A_DONT) {
- if (arg[1].arg_ptr.arg_stab == defstab) {
- if (statstab)
- stio = stab_io(statstab);
- else {
- str = statname;
- goto really_filename;
- }
- }
- else {
- statstab = arg[1].arg_ptr.arg_stab;
- str_set(statname,"");
- stio = stab_io(statstab);
- }
- if (stio && stio->ifp) {
-#ifdef STDSTDIO
- fstat(fileno(stio->ifp),&statcache);
- if (stio->ifp->_cnt <= 0) {
- i = getc(stio->ifp);
- if (i != EOF)
- (void)ungetc(i,stio->ifp);
- }
- if (stio->ifp->_cnt <= 0) /* null file is anything */
- return &str_yes;
- len = stio->ifp->_cnt + (stio->ifp->_ptr - stio->ifp->_base);
- s = stio->ifp->_base;
-#else
- fatal("-T and -B not implemented on filehandles\n");
-#endif
+ SV* sv = POPs;
+ char *s;
+ PUTBACK;
+ if (SvTYPE(sv) == SVt_PVGV) {
+ tmpgv = (GV*)sv;
+ goto do_fstat;
}
- else {
- if (dowarn)
- warn("Test on unopened file <%s>",
- stab_name(arg[1].arg_ptr.arg_stab));
- return &str_undef;
+ else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
+ tmpgv = (GV*)SvRV(sv);
+ goto do_fstat;
}
- }
- else {
- statstab = Nullstab;
- str_sset(statname,str);
- really_filename:
- i = open(str_get(str),0);
- if (i < 0)
- return &str_undef;
- fstat(i,&statcache);
- len = read(i,tbuf,512);
- if (len <= 0) /* null file is anything */
- return &str_yes;
- (void)close(i);
- s = tbuf;
- }
- /* now scan s to look for textiness */
+ s = SvPV(sv, na);
+ statgv = Nullgv;
+ sv_setpv(statname, s);
+ laststype = OP_STAT;
+ laststatval = PerlLIO_stat(s, &statcache);
+ if (laststatval < 0 && dowarn && strchr(s, '\n'))
+ warn(warn_nl, "stat");
+ return laststatval;
+ }
+}
- for (i = 0; i < len; i++,s++) {
- if (!*s) { /* null never allowed in text */
- odd += len;
- break;
+I32
+my_lstat(ARGSproto)
+{
+ djSP;
+ SV *sv;
+ if (op->op_flags & OPf_REF) {
+ EXTEND(SP,1);
+ if (cGVOP->op_gv == defgv) {
+ if (laststype != OP_LSTAT)
+ croak("The stat preceding -l _ wasn't an lstat");
+ return laststatval;
}
- else if (*s & 128)
- odd++;
- else if (*s < 32 &&
- *s != '\n' && *s != '\r' && *s != '\b' &&
- *s != '\t' && *s != '\f' && *s != 27)
- odd++;
+ croak("You can't use -l on a filehandle");
}
- if ((odd * 10 > len) == (arg->arg_type == O_FTTEXT)) /* allow 10% odd */
- return &str_no;
- else
- return &str_yes;
+ laststype = OP_LSTAT;
+ statgv = Nullgv;
+ sv = POPs;
+ PUTBACK;
+ sv_setpv(statname,SvPV(sv, na));
+#ifdef HAS_LSTAT
+ laststatval = PerlLIO_lstat(SvPV(sv, na),&statcache);
+#else
+ laststatval = PerlLIO_stat(SvPV(sv, na),&statcache);
+#endif
+ if (laststatval < 0 && dowarn && strchr(SvPV(sv, na), '\n'))
+ warn(warn_nl, "lstat");
+ return laststatval;
}
bool
-do_aexec(really,arglast)
-STR *really;
-int *arglast;
+do_aexec(SV *really, register SV **mark, register SV **sp)
{
- register STR **st = stack->ary_array;
- register int sp = arglast[1];
- register int items = arglast[2] - sp;
register char **a;
- char **argv;
char *tmps;
- if (items) {
- New(401,argv, items+1, char*);
- a = argv;
- for (st += ++sp; items > 0; items--,st++) {
- if (*st)
- *a++ = str_get(*st);
+ if (sp > mark) {
+ dTHR;
+ New(401,Argv, sp - mark + 1, char*);
+ a = Argv;
+ while (++mark <= sp) {
+ if (*mark)
+ *a++ = SvPVx(*mark, na);
else
*a++ = "";
}
*a = Nullch;
-#ifdef TAINT
- if (*argv[0] != '/') /* will execvp use PATH? */
- taintenv(); /* testing IFS here is overkill, probably */
-#endif
- if (really && *(tmps = str_get(really)))
- execvp(tmps,argv);
+ if (*Argv[0] != '/') /* will execvp use PATH? */
+ TAINT_ENV(); /* testing IFS here is overkill, probably */
+ if (really && *(tmps = SvPV(really, na)))
+ PerlProc_execvp(tmps,Argv);
else
- execvp(argv[0],argv);
- Safefree(argv);
+ PerlProc_execvp(Argv[0],Argv);
+ if (dowarn)
+ warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno));
}
+ do_execfree();
return FALSE;
}
-bool
-do_exec(cmd)
-char *cmd;
+void
+do_execfree(void)
{
- register char **a;
- register char *s;
- char **argv;
- char flags[10];
+ if (Argv) {
+ Safefree(Argv);
+ Argv = Null(char **);
+ }
+ if (Cmd) {
+ Safefree(Cmd);
+ Cmd = Nullch;
+ }
+}
-#ifdef TAINT
- taintenv();
- taintproper("Insecure dependency in exec");
-#endif
+#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP)
+
+bool
+do_exec(char *cmd)
+{
+ register char **a;
+ register char *s;
+ char flags[10];
+
+ while (*cmd && isSPACE(*cmd))
+ cmd++;
/* save an extra exec if possible */
*--s = '\0';
if (s[-1] == '\'') {
*--s = '\0';
- execl(cshname,"csh", flags,ncmd,(char*)0);
+ PerlProc_execl(cshname,"csh", flags,ncmd,(char*)0);
*s = '\'';
return FALSE;
}
/* see if there are shell metacharacters in it */
+ if (*cmd == '.' && isSPACE(cmd[1]))
+ goto doshell;
+
+ if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4]))
+ goto doshell;
+
+ for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */
+ if (*s == '=')
+ goto doshell;
+
for (s = cmd; *s; s++) {
- if (*s != ' ' && !isalpha(*s) && index("$&*(){}[]'\";\\|?<>~`\n",*s)) {
+ if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) {
if (*s == '\n' && !s[1]) {
*s = '\0';
break;
}
doshell:
- execl("/bin/sh","sh","-c",cmd,(char*)0);
+ PerlProc_execl(sh_path, "sh", "-c", cmd, (char*)0);
return FALSE;
}
}
- New(402,argv, (s - cmd) / 2 + 2, char*);
- a = argv;
- for (s = cmd; *s;) {
- while (*s && isspace(*s)) s++;
+ New(402,Argv, (s - cmd) / 2 + 2, char*);
+ Cmd = savepvn(cmd, s-cmd);
+ a = Argv;
+ for (s = Cmd; *s;) {
+ while (*s && isSPACE(*s)) s++;
if (*s)
*(a++) = s;
- while (*s && !isspace(*s)) s++;
+ while (*s && !isSPACE(*s)) s++;
if (*s)
*s++ = '\0';
}
*a = Nullch;
- if (argv[0]) {
- execvp(argv[0],argv);
- if (errno == ENOEXEC) /* for system V NIH syndrome */
+ if (Argv[0]) {
+ PerlProc_execvp(Argv[0],Argv);
+ if (errno == ENOEXEC) { /* for system V NIH syndrome */
+ do_execfree();
goto doshell;
- }
- Safefree(argv);
- return FALSE;
-}
-
-#ifdef SOCKET
-int
-do_socket(stab, arglast)
-STAB *stab;
-int *arglast;
-{
- register STR **st = stack->ary_array;
- register int sp = arglast[1];
- register STIO *stio;
- int domain, type, protocol, fd;
-
- if (!stab)
- return FALSE;
-
- stio = stab_io(stab);
- if (!stio)
- stio = stab_io(stab) = stio_new();
- else if (stio->ifp)
- do_close(stab,FALSE);
-
- domain = (int)str_gnum(st[++sp]);
- type = (int)str_gnum(st[++sp]);
- protocol = (int)str_gnum(st[++sp]);
-#ifdef TAINT
- taintproper("Insecure dependency in socket");
-#endif
- fd = socket(domain,type,protocol);
- if (fd < 0)
- return FALSE;
- stio->ifp = fdopen(fd, "r"); /* stdio gets confused about sockets */
- stio->ofp = fdopen(fd, "w");
- stio->type = 's';
-
- return TRUE;
-}
-
-int
-do_bind(stab, arglast)
-STAB *stab;
-int *arglast;
-{
- register STR **st = stack->ary_array;
- register int sp = arglast[1];
- register STIO *stio;
- char *addr;
-
- if (!stab)
- goto nuts;
-
- stio = stab_io(stab);
- if (!stio || !stio->ifp)
- goto nuts;
-
- addr = str_get(st[++sp]);
-#ifdef TAINT
- taintproper("Insecure dependency in bind");
-#endif
- return bind(fileno(stio->ifp), addr, st[sp]->str_cur) >= 0;
-
-nuts:
- if (dowarn)
- warn("bind() on closed fd");
- return FALSE;
-
-}
-
-int
-do_connect(stab, arglast)
-STAB *stab;
-int *arglast;
-{
- register STR **st = stack->ary_array;
- register int sp = arglast[1];
- register STIO *stio;
- char *addr;
-
- if (!stab)
- goto nuts;
-
- stio = stab_io(stab);
- if (!stio || !stio->ifp)
- goto nuts;
-
- addr = str_get(st[++sp]);
-#ifdef TAINT
- taintproper("Insecure dependency in connect");
-#endif
- return connect(fileno(stio->ifp), addr, st[sp]->str_cur) >= 0;
-
-nuts:
- if (dowarn)
- warn("connect() on closed fd");
- return FALSE;
-
-}
-
-int
-do_listen(stab, arglast)
-STAB *stab;
-int *arglast;
-{
- register STR **st = stack->ary_array;
- register int sp = arglast[1];
- register STIO *stio;
- int backlog;
-
- if (!stab)
- goto nuts;
-
- stio = stab_io(stab);
- if (!stio || !stio->ifp)
- goto nuts;
-
- backlog = (int)str_gnum(st[++sp]);
- return listen(fileno(stio->ifp), backlog) >= 0;
-
-nuts:
- if (dowarn)
- warn("listen() on closed fd");
- return FALSE;
-}
-
-void
-do_accept(str, nstab, gstab)
-STR *str;
-STAB *nstab;
-STAB *gstab;
-{
- register STIO *nstio;
- register STIO *gstio;
- int len = sizeof buf;
- int fd;
-
- if (!nstab)
- goto badexit;
- if (!gstab)
- goto nuts;
-
- gstio = stab_io(gstab);
- nstio = stab_io(nstab);
-
- if (!gstio || !gstio->ifp)
- goto nuts;
- if (!nstio)
- nstio = stab_io(nstab) = stio_new();
- else if (nstio->ifp)
- do_close(nstab,FALSE);
-
- fd = accept(fileno(gstio->ifp),buf,&len);
- if (fd < 0)
- goto badexit;
- nstio->ifp = fdopen(fd, "r");
- nstio->ofp = fdopen(fd, "w");
- nstio->type = 's';
-
- str_nset(str, buf, len);
- return;
-
-nuts:
- if (dowarn)
- warn("accept() on closed fd");
-badexit:
- str_sset(str,&str_undef);
- return;
-}
-
-int
-do_shutdown(stab, arglast)
-STAB *stab;
-int *arglast;
-{
- register STR **st = stack->ary_array;
- register int sp = arglast[1];
- register STIO *stio;
- int how;
-
- if (!stab)
- goto nuts;
-
- stio = stab_io(stab);
- if (!stio || !stio->ifp)
- goto nuts;
-
- how = (int)str_gnum(st[++sp]);
- return shutdown(fileno(stio->ifp), how) >= 0;
-
-nuts:
- if (dowarn)
- warn("shutdown() on closed fd");
- return FALSE;
-
-}
-
-int
-do_sopt(optype, stab, arglast)
-int optype;
-STAB *stab;
-int *arglast;
-{
- register STR **st = stack->ary_array;
- register int sp = arglast[1];
- register STIO *stio;
- int fd;
- int lvl;
- int optname;
-
- if (!stab)
- goto nuts;
-
- stio = stab_io(stab);
- if (!stio || !stio->ifp)
- goto nuts;
-
- fd = fileno(stio->ifp);
- lvl = (int)str_gnum(st[sp+1]);
- optname = (int)str_gnum(st[sp+2]);
- switch (optype) {
- case O_GSOCKOPT:
- st[sp] = str_2static(str_new(257));
- st[sp]->str_cur = 256;
- st[sp]->str_pok = 1;
- if (getsockopt(fd, lvl, optname, st[sp]->str_ptr, &st[sp]->str_cur) < 0)
- goto nuts;
- break;
- case O_SSOCKOPT:
- st[sp] = st[sp+3];
- if (setsockopt(fd, lvl, optname, st[sp]->str_ptr, st[sp]->str_cur) < 0)
- goto nuts;
- st[sp] = &str_yes;
- break;
- }
-
- return sp;
-
-nuts:
- if (dowarn)
- warn("[gs]etsockopt() on closed fd");
- st[sp] = &str_undef;
- return sp;
-
-}
-
-int
-do_getsockname(optype, stab, arglast)
-int optype;
-STAB *stab;
-int *arglast;
-{
- register STR **st = stack->ary_array;
- register int sp = arglast[1];
- register STIO *stio;
- int fd;
-
- if (!stab)
- goto nuts;
-
- stio = stab_io(stab);
- if (!stio || !stio->ifp)
- goto nuts;
-
- st[sp] = str_2static(str_new(257));
- st[sp]->str_cur = 256;
- st[sp]->str_pok = 1;
- fd = fileno(stio->ifp);
- switch (optype) {
- case O_GETSOCKNAME:
- if (getsockname(fd, st[sp]->str_ptr, &st[sp]->str_cur) < 0)
- goto nuts;
- break;
- case O_GETPEERNAME:
- if (getpeername(fd, st[sp]->str_ptr, &st[sp]->str_cur) < 0)
- goto nuts;
- break;
- }
-
- return sp;
-
-nuts:
- if (dowarn)
- warn("get{sock,peer}name() on closed fd");
- st[sp] = &str_undef;
- return sp;
-
-}
-
-int
-do_ghent(which,gimme,arglast)
-int which;
-int gimme;
-int *arglast;
-{
- register ARRAY *ary = stack;
- register int sp = arglast[0];
- register char **elem;
- register STR *str;
- struct hostent *gethostbyname();
- struct hostent *gethostbyaddr();
-#ifdef GETHOSTENT
- struct hostent *gethostent();
-#endif
- struct hostent *hent;
- unsigned long len;
-
- if (gimme != G_ARRAY) {
- astore(ary, ++sp, str_static(&str_undef));
- return sp;
- }
-
- if (which == O_GHBYNAME) {
- char *name = str_get(ary->ary_array[sp+1]);
-
- hent = gethostbyname(name);
- }
- else if (which == O_GHBYADDR) {
- STR *addrstr = ary->ary_array[sp+1];
- int addrtype = (int)str_gnum(ary->ary_array[sp+2]);
- char *addr = str_get(addrstr);
-
- hent = gethostbyaddr(addr,addrstr->str_cur,addrtype);
- }
- else
-#ifdef GETHOSTENT
- hent = gethostent();
-#else
- fatal("gethostent not implemented");
-#endif
- if (hent) {
-#ifndef lint
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, hent->h_name);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- for (elem = hent->h_aliases; *elem; elem++) {
- str_cat(str, *elem);
- if (elem[1])
- str_ncat(str," ",1);
}
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_numset(str, (double)hent->h_addrtype);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- len = hent->h_length;
- str_numset(str, (double)len);
-#ifdef h_addr
- for (elem = hent->h_addr_list; *elem; elem++) {
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_nset(str, *elem, len);
- }
-#else
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_nset(str, hent->h_addr, len);
-#endif /* h_addr */
-#else /* lint */
- elem = Nullch;
- elem = elem;
- (void)astore(ary, ++sp, str_static(&str_no));
-#endif /* lint */
- }
-
- return sp;
-}
-
-int
-do_gnent(which,gimme,arglast)
-int which;
-int gimme;
-int *arglast;
-{
- register ARRAY *ary = stack;
- register int sp = arglast[0];
- register char **elem;
- register STR *str;
- struct netent *getnetbyname();
- struct netent *getnetbyaddr();
- struct netent *getnetent();
- struct netent *nent;
-
- if (gimme != G_ARRAY) {
- astore(ary, ++sp, str_static(&str_undef));
- return sp;
- }
-
- if (which == O_GNBYNAME) {
- char *name = str_get(ary->ary_array[sp+1]);
-
- nent = getnetbyname(name);
- }
- else if (which == O_GNBYADDR) {
- STR *addrstr = ary->ary_array[sp+1];
- int addrtype = (int)str_gnum(ary->ary_array[sp+2]);
- char *addr = str_get(addrstr);
-
- nent = getnetbyaddr(addr,addrtype);
- }
- else
- nent = getnetent();
-
- if (nent) {
-#ifndef lint
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, nent->n_name);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- for (elem = nent->n_aliases; *elem; elem++) {
- str_cat(str, *elem);
- if (elem[1])
- str_ncat(str," ",1);
- }
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_numset(str, (double)nent->n_addrtype);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_numset(str, (double)nent->n_net);
-#else /* lint */
- elem = Nullch;
- elem = elem;
- (void)astore(ary, ++sp, str_static(&str_no));
-#endif /* lint */
- }
-
- return sp;
-}
-
-int
-do_gpent(which,gimme,arglast)
-int which;
-int gimme;
-int *arglast;
-{
- register ARRAY *ary = stack;
- register int sp = arglast[0];
- register char **elem;
- register STR *str;
- struct protoent *getprotobyname();
- struct protoent *getprotobynumber();
- struct protoent *getprotoent();
- struct protoent *pent;
-
- if (gimme != G_ARRAY) {
- astore(ary, ++sp, str_static(&str_undef));
- return sp;
- }
-
- if (which == O_GPBYNAME) {
- char *name = str_get(ary->ary_array[sp+1]);
-
- pent = getprotobyname(name);
- }
- else if (which == O_GPBYNUMBER) {
- int proto = (int)str_gnum(ary->ary_array[sp+1]);
-
- pent = getprotobynumber(proto);
- }
- else
- pent = getprotoent();
-
- if (pent) {
-#ifndef lint
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, pent->p_name);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- for (elem = pent->p_aliases; *elem; elem++) {
- str_cat(str, *elem);
- if (elem[1])
- str_ncat(str," ",1);
- }
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_numset(str, (double)pent->p_proto);
-#else /* lint */
- elem = Nullch;
- elem = elem;
- (void)astore(ary, ++sp, str_static(&str_no));
-#endif /* lint */
+ if (dowarn)
+ warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno));
}
-
- return sp;
+ do_execfree();
+ return FALSE;
}
-int
-do_gsent(which,gimme,arglast)
-int which;
-int gimme;
-int *arglast;
-{
- register ARRAY *ary = stack;
- register int sp = arglast[0];
- register char **elem;
- register STR *str;
- struct servent *getservbyname();
- struct servent *getservbynumber();
- struct servent *getservent();
- struct servent *sent;
-
- if (gimme != G_ARRAY) {
- astore(ary, ++sp, str_static(&str_undef));
- return sp;
- }
-
- if (which == O_GSBYNAME) {
- char *name = str_get(ary->ary_array[sp+1]);
- char *proto = str_get(ary->ary_array[sp+2]);
-
- if (proto && !*proto)
- proto = Nullch;
-
- sent = getservbyname(name,proto);
- }
- else if (which == O_GSBYPORT) {
- int port = (int)str_gnum(ary->ary_array[sp+1]);
- char *proto = str_get(ary->ary_array[sp+2]);
+#endif /* OS2 || WIN32 */
- sent = getservbyport(port,proto);
- }
- else
- sent = getservent();
- if (sent) {
-#ifndef lint
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, sent->s_name);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- for (elem = sent->s_aliases; *elem; elem++) {
- str_cat(str, *elem);
- if (elem[1])
- str_ncat(str," ",1);
- }
- (void)astore(ary, ++sp, str = str_static(&str_no));
-#ifdef NTOHS
- str_numset(str, (double)ntohs(sent->s_port));
-#else
- str_numset(str, (double)(sent->s_port));
-#endif
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, sent->s_proto);
-#else /* lint */
- elem = Nullch;
- elem = elem;
- (void)astore(ary, ++sp, str_static(&str_no));
-#endif /* lint */
- }
-
- return sp;
-}
-
-int
-do_select(gimme,arglast)
-int gimme;
-int *arglast;
+I32
+apply(I32 type, register SV **mark, register SV **sp)
{
- register STR **st = stack->ary_array;
- register int sp = arglast[0];
- register int i;
- register int j;
- register char *s;
- register STR *str;
- double value;
- int maxlen = 0;
- int nfound;
- struct timeval timebuf;
- struct timeval *tbuf = &timebuf;
- int growsize;
-#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
- int masksize;
- int offset;
- char *fd_sets[4];
- int k;
-
-#if BYTEORDER & 0xf0000
-#define ORDERBYTE (0x88888888 - BYTEORDER)
-#else
-#define ORDERBYTE (0x4444 - BYTEORDER)
-#endif
-
-#endif
-
- for (i = 1; i <= 3; i++) {
- j = st[sp+i]->str_cur;
- if (maxlen < j)
- maxlen = j;
- }
-
-#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
- growsize = maxlen; /* little endians can use vecs directly */
-#else
-#ifdef NFDBITS
-
-#ifndef NBBY
-#define NBBY 8
-#endif
+ dTHR;
+ register I32 val;
+ register I32 val2;
+ register I32 tot = 0;
+ char *what;
+ char *s;
+ SV **oldmark = mark;
- masksize = NFDBITS / NBBY;
-#else
- masksize = sizeof(long); /* documented int, everyone seems to use long */
-#endif
- growsize = maxlen + (masksize - (maxlen % masksize));
- Zero(&fd_sets[0], 4, char*);
-#endif
+#define APPLY_TAINT_PROPER() \
+ if (!(tainting && tainted)) {} else { goto taint_proper; }
- for (i = 1; i <= 3; i++) {
- str = st[sp+i];
- j = str->str_len;
- if (j < growsize) {
- if (str->str_pok) {
- str_grow(str,growsize);
- s = str_get(str) + j;
- while (++j <= growsize) {
- *s++ = '\0';
- }
- }
- else if (str->str_ptr) {
- Safefree(str->str_ptr);
- str->str_ptr = Nullch;
- }
- }
-#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
- s = str->str_ptr;
- if (s) {
- New(403, fd_sets[i], growsize, char);
- for (offset = 0; offset < growsize; offset += masksize) {
- for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
- fd_sets[i][j+offset] = s[(k % masksize) + offset];
- }
- }
-#endif
- }
- str = st[sp+4];
- if (str->str_nok || str->str_pok) {
- value = str_gnum(str);
- if (value < 0.0)
- value = 0.0;
- timebuf.tv_sec = (long)value;
- value -= (double)timebuf.tv_sec;
- timebuf.tv_usec = (long)(value * 1000000.0);
- }
- else
- tbuf = Null(struct timeval*);
-
-#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
- nfound = select(
- maxlen * 8,
- st[sp+1]->str_ptr,
- st[sp+2]->str_ptr,
- st[sp+3]->str_ptr,
- tbuf);
-#else
- nfound = select(
- maxlen * 8,
- fd_sets[1],
- fd_sets[2],
- fd_sets[3],
- tbuf);
- for (i = 1; i <= 3; i++) {
- if (fd_sets[i]) {
- str = st[sp+i];
- s = str->str_ptr;
- for (offset = 0; offset < growsize; offset += masksize) {
- for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
- s[(k % masksize) + offset] = fd_sets[i][j+offset];
+ /* This is a first heuristic; it doesn't catch tainting magic. */
+ if (tainting) {
+ while (++mark <= sp) {
+ if (SvTAINTED(*mark)) {
+ TAINT;
+ break;
}
}
+ mark = oldmark;
}
-#endif
-
- st[++sp] = str_static(&str_no);
- str_numset(st[sp], (double)nfound);
- if (gimme == G_ARRAY && tbuf) {
- value = (double)(timebuf.tv_sec) +
- (double)(timebuf.tv_usec) / 1000000.0;
- st[++sp] = str_static(&str_no);
- str_numset(st[sp], value);
- }
- return sp;
-}
-
-int
-do_spair(stab1, stab2, arglast)
-STAB *stab1;
-STAB *stab2;
-int *arglast;
-{
- register STR **st = stack->ary_array;
- register int sp = arglast[2];
- register STIO *stio1;
- register STIO *stio2;
- int domain, type, protocol, fd[2];
-
- if (!stab1 || !stab2)
- return FALSE;
-
- stio1 = stab_io(stab1);
- stio2 = stab_io(stab2);
- if (!stio1)
- stio1 = stab_io(stab1) = stio_new();
- else if (stio1->ifp)
- do_close(stab1,FALSE);
- if (!stio2)
- stio2 = stab_io(stab2) = stio_new();
- else if (stio2->ifp)
- do_close(stab2,FALSE);
-
- domain = (int)str_gnum(st[++sp]);
- type = (int)str_gnum(st[++sp]);
- protocol = (int)str_gnum(st[++sp]);
-#ifdef TAINT
- taintproper("Insecure dependency in socketpair");
-#endif
-#ifdef SOCKETPAIR
- if (socketpair(domain,type,protocol,fd) < 0)
- return FALSE;
-#else
- fatal("Socketpair unimplemented");
-#endif
- stio1->ifp = fdopen(fd[0], "r");
- stio1->ofp = fdopen(fd[0], "w");
- stio1->type = 's';
- stio2->ifp = fdopen(fd[1], "r");
- stio2->ofp = fdopen(fd[1], "w");
- stio2->type = 's';
-
- return TRUE;
-}
-
-#endif /* SOCKET */
-
-int
-do_gpwent(which,gimme,arglast)
-int which;
-int gimme;
-int *arglast;
-{
-#ifdef I_PWD
- register ARRAY *ary = stack;
- register int sp = arglast[0];
- register char **elem;
- register STR *str;
- struct passwd *getpwnam();
- struct passwd *getpwuid();
- struct passwd *getpwent();
- struct passwd *pwent;
- unsigned long len;
-
- if (gimme != G_ARRAY) {
- astore(ary, ++sp, str_static(&str_undef));
- return sp;
- }
-
- if (which == O_GPWNAM) {
- char *name = str_get(ary->ary_array[sp+1]);
-
- pwent = getpwnam(name);
- }
- else if (which == O_GPWUID) {
- int uid = (int)str_gnum(ary->ary_array[sp+1]);
-
- pwent = getpwuid(uid);
- }
- else
- pwent = getpwent();
-
- if (pwent) {
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, pwent->pw_name);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, pwent->pw_passwd);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_numset(str, (double)pwent->pw_uid);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_numset(str, (double)pwent->pw_gid);
- (void)astore(ary, ++sp, str = str_static(&str_no));
-#ifdef PWCHANGE
- str_numset(str, (double)pwent->pw_change);
-#else
-#ifdef PWQUOTA
- str_numset(str, (double)pwent->pw_quota);
-#else
-#ifdef PWAGE
- str_set(str, pwent->pw_age);
-#endif
-#endif
-#endif
- (void)astore(ary, ++sp, str = str_static(&str_no));
-#ifdef PWCLASS
- str_set(str,pwent->pw_class);
-#else
- str_set(str, pwent->pw_comment);
-#endif
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, pwent->pw_gecos);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, pwent->pw_dir);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, pwent->pw_shell);
-#ifdef PWEXPIRE
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_numset(str, (double)pwent->pw_expire);
-#endif
- }
-
- return sp;
-#else
- fatal("password routines not implemented");
-#endif
-}
-
-int
-do_ggrent(which,gimme,arglast)
-int which;
-int gimme;
-int *arglast;
-{
-#ifdef I_GRP
- register ARRAY *ary = stack;
- register int sp = arglast[0];
- register char **elem;
- register STR *str;
- struct group *getgrnam();
- struct group *getgrgid();
- struct group *getgrent();
- struct group *grent;
- unsigned long len;
-
- if (gimme != G_ARRAY) {
- astore(ary, ++sp, str_static(&str_undef));
- return sp;
- }
-
- if (which == O_GGRNAM) {
- char *name = str_get(ary->ary_array[sp+1]);
-
- grent = getgrnam(name);
- }
- else if (which == O_GGRGID) {
- int gid = (int)str_gnum(ary->ary_array[sp+1]);
-
- grent = getgrgid(gid);
- }
- else
- grent = getgrent();
-
- if (grent) {
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, grent->gr_name);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_set(str, grent->gr_passwd);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- str_numset(str, (double)grent->gr_gid);
- (void)astore(ary, ++sp, str = str_static(&str_no));
- for (elem = grent->gr_mem; *elem; elem++) {
- str_cat(str, *elem);
- if (elem[1])
- str_ncat(str," ",1);
- }
- }
-
- return sp;
-#else
- fatal("group routines not implemented");
-#endif
-}
-
-int
-do_dirop(optype,stab,gimme,arglast)
-int optype;
-STAB *stab;
-int gimme;
-int *arglast;
-{
-#if defined(DIRENT) && defined(READDIR)
- register ARRAY *ary = stack;
- register STR **st = ary->ary_array;
- register int sp = arglast[1];
- register STIO *stio;
- long along;
-#ifndef telldir
- long telldir();
-#endif
- struct DIRENT *readdir();
- register struct DIRENT *dp;
-
- if (!stab)
- goto nope;
- if (!(stio = stab_io(stab)))
- stio = stab_io(stab) = stio_new();
- if (!stio->dirp && optype != O_OPENDIR)
- goto nope;
- st[sp] = &str_yes;
- switch (optype) {
- case O_OPENDIR:
- if (stio->dirp)
- closedir(stio->dirp);
- if (!(stio->dirp = opendir(str_get(st[sp+1]))))
- goto nope;
- break;
- case O_READDIR:
- if (gimme == G_ARRAY) {
- --sp;
- while (dp = readdir(stio->dirp)) {
-#ifdef DIRNAMLEN
- (void)astore(ary,++sp,
- str_2static(str_make(dp->d_name,dp->d_namlen)));
-#else
- (void)astore(ary,++sp,
- str_2static(str_make(dp->d_name,0)));
-#endif
+ switch (type) {
+ case OP_CHMOD:
+ what = "chmod";
+ APPLY_TAINT_PROPER();
+ if (++mark <= sp) {
+ val = SvIVx(*mark);
+ APPLY_TAINT_PROPER();
+ tot = sp - mark;
+ while (++mark <= sp) {
+ char *name = SvPVx(*mark, na);
+ APPLY_TAINT_PROPER();
+ if (PerlLIO_chmod(name, val))
+ tot--;
}
}
- else {
- if (!(dp = readdir(stio->dirp)))
- goto nope;
- st[sp] = str_static(&str_undef);
-#ifdef DIRNAMLEN
- str_nset(st[sp], dp->d_name, dp->d_namlen);
-#else
- str_set(st[sp], dp->d_name);
-#endif
- }
- break;
- case O_TELLDIR:
- st[sp] = str_static(&str_undef);
- str_numset(st[sp], (double)telldir(stio->dirp));
- break;
- case O_SEEKDIR:
- st[sp] = str_static(&str_undef);
- along = (long)str_gnum(st[sp+1]);
- (void)seekdir(stio->dirp,along);
break;
- case O_REWINDDIR:
- st[sp] = str_static(&str_undef);
- (void)rewinddir(stio->dirp);
- break;
- case O_CLOSEDIR:
- st[sp] = str_static(&str_undef);
- (void)closedir(stio->dirp);
- stio->dirp = 0;
- break;
- }
- return sp;
-
-nope:
- st[sp] = &str_undef;
- return sp;
-
-#else
- fatal("Unimplemented directory operation");
-#endif
-}
-
-apply(type,arglast)
-int type;
-int *arglast;
-{
- register STR **st = stack->ary_array;
- register int sp = arglast[1];
- register int items = arglast[2] - sp;
- register int val;
- register int val2;
- register int tot = 0;
- char *s;
-
-#ifdef TAINT
- for (st += ++sp; items--; st++)
- tainted |= (*st)->str_tainted;
- st = stack->ary_array;
- sp = arglast[1];
- items = arglast[2] - sp;
-#endif
- switch (type) {
- case O_CHMOD:
-#ifdef TAINT
- taintproper("Insecure dependency in chmod");
-#endif
- if (--items > 0) {
- tot = items;
- val = (int)str_gnum(st[++sp]);
- while (items--) {
- if (chmod(str_get(st[++sp]),val))
+#ifdef HAS_CHOWN
+ case OP_CHOWN:
+ what = "chown";
+ APPLY_TAINT_PROPER();
+ if (sp - mark > 2) {
+ val = SvIVx(*++mark);
+ val2 = SvIVx(*++mark);
+ APPLY_TAINT_PROPER();
+ tot = sp - mark;
+ while (++mark <= sp) {
+ char *name = SvPVx(*mark, na);
+ APPLY_TAINT_PROPER();
+ if (chown(name, val, val2))
tot--;
}
}
break;
- case O_CHOWN:
-#ifdef TAINT
- taintproper("Insecure dependency in chown");
#endif
- if (items > 2) {
- items -= 2;
- tot = items;
- val = (int)str_gnum(st[++sp]);
- val2 = (int)str_gnum(st[++sp]);
- while (items--) {
- if (chown(str_get(st[++sp]),val,val2))
+/*
+XXX Should we make lchown() directly available from perl?
+For now, we'll let Configure test for HAS_LCHOWN, but do
+nothing in the core.
+ --AD 5/1998
+*/
+#ifdef HAS_KILL
+ case OP_KILL:
+ what = "kill";
+ APPLY_TAINT_PROPER();
+ if (mark == sp)
+ break;
+ s = SvPVx(*++mark, na);
+ if (isUPPER(*s)) {
+ if (*s == 'S' && s[1] == 'I' && s[2] == 'G')
+ s += 3;
+ if (!(val = whichsig(s)))
+ croak("Unrecognized signal name \"%s\"",s);
+ }
+ else
+ val = SvIVx(*mark);
+ APPLY_TAINT_PROPER();
+ tot = sp - mark;
+#ifdef VMS
+ /* kill() doesn't do process groups (job trees?) under VMS */
+ if (val < 0) val = -val;
+ if (val == SIGKILL) {
+# include <starlet.h>
+ /* Use native sys$delprc() to insure that target process is
+ * deleted; supervisor-mode images don't pay attention to
+ * CRTL's emulation of Unix-style signals and kill()
+ */
+ while (++mark <= sp) {
+ I32 proc = SvIVx(*mark);
+ register unsigned long int __vmssts;
+ APPLY_TAINT_PROPER();
+ if (!((__vmssts = sys$delprc(&proc,0)) & 1)) {
tot--;
+ switch (__vmssts) {
+ case SS$_NONEXPR:
+ case SS$_NOSUCHNODE:
+ SETERRNO(ESRCH,__vmssts);
+ break;
+ case SS$_NOPRIV:
+ SETERRNO(EPERM,__vmssts);
+ break;
+ default:
+ SETERRNO(EVMSERR,__vmssts);
+ }
+ }
}
+ break;
}
- break;
- case O_KILL:
-#ifdef TAINT
- taintproper("Insecure dependency in kill");
#endif
- if (--items > 0) {
- tot = items;
- s = str_get(st[++sp]);
- if (isupper(*s)) {
- if (*s == 'S' && s[1] == 'I' && s[2] == 'G')
- s += 3;
- if (!(val = whichsig(s)))
- fatal("Unrecognized signal name \"%s\"",s);
- }
- else
- val = (int)str_gnum(st[sp]);
- if (val < 0) {
- val = -val;
- while (items--) {
- int proc = (int)str_gnum(st[++sp]);
-#ifdef KILLPG
- if (killpg(proc,val)) /* BSD */
+ if (val < 0) {
+ val = -val;
+ while (++mark <= sp) {
+ I32 proc = SvIVx(*mark);
+ APPLY_TAINT_PROPER();
+#ifdef HAS_KILLPG
+ if (PerlProc_killpg(proc,val)) /* BSD */
#else
- if (kill(-proc,val)) /* SYSV */
+ if (PerlProc_kill(-proc,val)) /* SYSV */
#endif
- tot--;
- }
+ tot--;
}
- else {
- while (items--) {
- if (kill((int)(str_gnum(st[++sp])),val))
- tot--;
- }
+ }
+ else {
+ while (++mark <= sp) {
+ I32 proc = SvIVx(*mark);
+ APPLY_TAINT_PROPER();
+ if (PerlProc_kill(proc, val))
+ tot--;
}
}
break;
- case O_UNLINK:
-#ifdef TAINT
- taintproper("Insecure dependency in unlink");
#endif
- tot = items;
- while (items--) {
- s = str_get(st[++sp]);
+ case OP_UNLINK:
+ what = "unlink";
+ APPLY_TAINT_PROPER();
+ tot = sp - mark;
+ while (++mark <= sp) {
+ s = SvPVx(*mark, na);
+ APPLY_TAINT_PROPER();
if (euid || unsafe) {
if (UNLINK(s))
tot--;
}
else { /* don't let root wipe out directories without -U */
-#ifdef LSTAT
- if (lstat(s,&statbuf) < 0 ||
+#ifdef HAS_LSTAT
+ if (PerlLIO_lstat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode))
#else
- if (stat(s,&statbuf) < 0 ||
+ if (PerlLIO_stat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode))
#endif
- (statbuf.st_mode & S_IFMT) == S_IFDIR )
tot--;
else {
if (UNLINK(s))
}
}
break;
- case O_UTIME:
-#ifdef TAINT
- taintproper("Insecure dependency in utime");
-#endif
- if (items > 2) {
-#ifdef I_UTIME
+#ifdef HAS_UTIME
+ case OP_UTIME:
+ what = "utime";
+ APPLY_TAINT_PROPER();
+ if (sp - mark > 2) {
+#if defined(I_UTIME) || defined(VMS)
struct utimbuf utbuf;
#else
struct {
#endif
Zero(&utbuf, sizeof utbuf, char);
- utbuf.actime = (long)str_gnum(st[++sp]); /* time accessed */
- utbuf.modtime = (long)str_gnum(st[++sp]); /* time modified */
- items -= 2;
-#ifndef lint
- tot = items;
- while (items--) {
- if (utime(str_get(st[++sp]),&utbuf))
+#ifdef BIG_TIME
+ utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */
+ utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */
+#else
+ utbuf.actime = SvIVx(*++mark); /* time accessed */
+ utbuf.modtime = SvIVx(*++mark); /* time modified */
+#endif
+ APPLY_TAINT_PROPER();
+ tot = sp - mark;
+ while (++mark <= sp) {
+ char *name = SvPVx(*mark, na);
+ APPLY_TAINT_PROPER();
+ if (PerlLIO_utime(name, &utbuf))
tot--;
}
-#endif
}
else
- items = 0;
+ tot = 0;
break;
+#endif
}
return tot;
+
+ taint_proper:
+ TAINT_PROPER(what);
+ return 0; /* this should never happen */
+
+#undef APPLY_TAINT_PROPER
}
/* Do the permissions allow some operation? Assumes statcache already set. */
-
-int
-cando(bit, effective, statbufp)
-int bit;
-int effective;
-register struct stat *statbufp;
+#ifndef VMS /* VMS' cando is in vms.c */
+I32
+cando(I32 bit, I32 effective, register struct stat *statbufp)
{
+#ifdef DOSISH
+ /* [Comments and code from Len Reed]
+ * MS-DOS "user" is similar to UNIX's "superuser," but can't write
+ * to write-protected files. The execute permission bit is set
+ * by the Miscrosoft C library stat() function for the following:
+ * .exe files
+ * .com files
+ * .bat files
+ * directories
+ * All files and directories are readable.
+ * Directories and special files, e.g. "CON", cannot be
+ * write-protected.
+ * [Comment by Tom Dinger -- a directory can have the write-protect
+ * bit set in the file system, but DOS permits changes to
+ * the directory anyway. In addition, all bets are off
+ * here for networked software, such as Novell and
+ * Sun's PC-NFS.]
+ */
+
+ /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat
+ * too so it will actually look into the files for magic numbers
+ */
+ return (bit & statbufp->st_mode) ? TRUE : FALSE;
+
+#else /* ! DOSISH */
if ((effective ? euid : uid) == 0) { /* root is special */
- if (bit == S_IEXEC) {
- if (statbufp->st_mode & 0111 ||
- (statbufp->st_mode & S_IFMT) == S_IFDIR )
+ if (bit == S_IXUSR) {
+ if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode))
return TRUE;
}
else
if (statbufp->st_mode & bit)
return TRUE; /* ok as "user" */
}
- else if (ingroup((int)statbufp->st_gid,effective)) {
+ else if (ingroup((I32)statbufp->st_gid,effective)) {
if (statbufp->st_mode & bit >> 3)
return TRUE; /* ok as "group" */
}
else if (statbufp->st_mode & bit >> 6)
return TRUE; /* ok as "other" */
return FALSE;
+#endif /* ! DOSISH */
}
+#endif /* ! VMS */
-int
-ingroup(testgid,effective)
-int testgid;
-int effective;
+I32
+ingroup(I32 testgid, I32 effective)
{
if (testgid == (effective ? egid : gid))
return TRUE;
-#ifdef GETGROUPS
+#ifdef HAS_GETGROUPS
#ifndef NGROUPS
#define NGROUPS 32
#endif
{
- GIDTYPE gary[NGROUPS];
- int anum;
+ Groups_t gary[NGROUPS];
+ I32 anum;
anum = getgroups(NGROUPS,gary);
while (--anum >= 0)
#endif
return FALSE;
}
+
+#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
+
+I32
+do_ipcget(I32 optype, SV **mark, SV **sp)
+{
+ dTHR;
+ key_t key;
+ I32 n, flags;
+
+ key = (key_t)SvNVx(*++mark);
+ n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark);
+ flags = SvIVx(*++mark);
+ SETERRNO(0,0);
+ switch (optype)
+ {
+#ifdef HAS_MSG
+ case OP_MSGGET:
+ return msgget(key, flags);
+#endif
+#ifdef HAS_SEM
+ case OP_SEMGET:
+ return semget(key, n, flags);
+#endif
+#ifdef HAS_SHM
+ case OP_SHMGET:
+ return shmget(key, n, flags);
+#endif
+#if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM)
+ default:
+ croak("%s not implemented", op_desc[optype]);
+#endif
+ }
+ return -1; /* should never happen */
+}
+
+I32
+do_ipcctl(I32 optype, SV **mark, SV **sp)
+{
+ dTHR;
+ SV *astr;
+ char *a;
+ I32 id, n, cmd, infosize, getinfo;
+ I32 ret = -1;
+
+ id = SvIVx(*++mark);
+ n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0;
+ cmd = SvIVx(*++mark);
+ astr = *++mark;
+ infosize = 0;
+ getinfo = (cmd == IPC_STAT);
+
+ switch (optype)
+ {
+#ifdef HAS_MSG
+ case OP_MSGCTL:
+ if (cmd == IPC_STAT || cmd == IPC_SET)
+ infosize = sizeof(struct msqid_ds);
+ break;
+#endif
+#ifdef HAS_SHM
+ case OP_SHMCTL:
+ if (cmd == IPC_STAT || cmd == IPC_SET)
+ infosize = sizeof(struct shmid_ds);
+ break;
+#endif
+#ifdef HAS_SEM
+ case OP_SEMCTL:
+ if (cmd == IPC_STAT || cmd == IPC_SET)
+ infosize = sizeof(struct semid_ds);
+ else if (cmd == GETALL || cmd == SETALL)
+ {
+ struct semid_ds semds;
+ union semun semun;
+
+ semun.buf = &semds;
+ getinfo = (cmd == GETALL);
+ infosize = semds.sem_nsems * sizeof(short);
+ /* "short" is technically wrong but much more portable
+ than guessing about u_?short(_t)? */
+ }
+ break;
+#endif
+#if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM)
+ default:
+ croak("%s not implemented", op_desc[optype]);
+#endif
+ }
+
+ if (infosize)
+ {
+ STRLEN len;
+ if (getinfo)
+ {
+ SvPV_force(astr, len);
+ a = SvGROW(astr, infosize+1);
+ }
+ else
+ {
+ a = SvPV(astr, len);
+ if (len != infosize)
+ croak("Bad arg length for %s, is %lu, should be %ld",
+ op_desc[optype], (unsigned long)len, (long)infosize);
+ }
+ }
+ else
+ {
+ IV i = SvIV(astr);
+ a = (char *)i; /* ouch */
+ }
+ SETERRNO(0,0);
+ switch (optype)
+ {
+#ifdef HAS_MSG
+ case OP_MSGCTL:
+ ret = msgctl(id, cmd, (struct msqid_ds *)a);
+ break;
+#endif
+#ifdef HAS_SEM
+ case OP_SEMCTL: {
+ union semun unsemds;
+
+ unsemds.buf = (struct semid_ds *)a;
+ ret = Semctl(id, n, cmd, unsemds);
+ }
+ break;
+#endif
+#ifdef HAS_SHM
+ case OP_SHMCTL:
+ ret = shmctl(id, cmd, (struct shmid_ds *)a);
+ break;
+#endif
+ }
+ if (getinfo && ret >= 0) {
+ SvCUR_set(astr, infosize);
+ *SvEND(astr) = '\0';
+ SvSETMAGIC(astr);
+ }
+ return ret;
+}
+
+I32
+do_msgsnd(SV **mark, SV **sp)
+{
+#ifdef HAS_MSG
+ dTHR;
+ SV *mstr;
+ char *mbuf;
+ I32 id, msize, flags;
+ STRLEN len;
+
+ id = SvIVx(*++mark);
+ mstr = *++mark;
+ flags = SvIVx(*++mark);
+ mbuf = SvPV(mstr, len);
+ if ((msize = len - sizeof(long)) < 0)
+ croak("Arg too short for msgsnd");
+ SETERRNO(0,0);
+ return msgsnd(id, (struct msgbuf *)mbuf, msize, flags);
+#else
+ croak("msgsnd not implemented");
+#endif
+}
+
+I32
+do_msgrcv(SV **mark, SV **sp)
+{
+#ifdef HAS_MSG
+ dTHR;
+ SV *mstr;
+ char *mbuf;
+ long mtype;
+ I32 id, msize, flags, ret;
+ STRLEN len;
+
+ id = SvIVx(*++mark);
+ mstr = *++mark;
+ msize = SvIVx(*++mark);
+ mtype = (long)SvIVx(*++mark);
+ flags = SvIVx(*++mark);
+ if (SvTHINKFIRST(mstr)) {
+ if (SvREADONLY(mstr))
+ croak("Can't msgrcv to readonly var");
+ if (SvROK(mstr))
+ sv_unref(mstr);
+ }
+ SvPV_force(mstr, len);
+ mbuf = SvGROW(mstr, sizeof(long)+msize+1);
+
+ SETERRNO(0,0);
+ ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags);
+ if (ret >= 0) {
+ SvCUR_set(mstr, sizeof(long)+ret);
+ *SvEND(mstr) = '\0';
+ }
+ return ret;
+#else
+ croak("msgrcv not implemented");
+#endif
+}
+
+I32
+do_semop(SV **mark, SV **sp)
+{
+#ifdef HAS_SEM
+ dTHR;
+ SV *opstr;
+ char *opbuf;
+ I32 id;
+ STRLEN opsize;
+
+ id = SvIVx(*++mark);
+ opstr = *++mark;
+ opbuf = SvPV(opstr, opsize);
+ if (opsize < sizeof(struct sembuf)
+ || (opsize % sizeof(struct sembuf)) != 0) {
+ SETERRNO(EINVAL,LIB$_INVARG);
+ return -1;
+ }
+ SETERRNO(0,0);
+ return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf));
+#else
+ croak("semop not implemented");
+#endif
+}
+
+I32
+do_shmio(I32 optype, SV **mark, SV **sp)
+{
+#ifdef HAS_SHM
+ dTHR;
+ SV *mstr;
+ char *mbuf, *shm;
+ I32 id, mpos, msize;
+ STRLEN len;
+ struct shmid_ds shmds;
+
+ id = SvIVx(*++mark);
+ mstr = *++mark;
+ mpos = SvIVx(*++mark);
+ msize = SvIVx(*++mark);
+ SETERRNO(0,0);
+ if (shmctl(id, IPC_STAT, &shmds) == -1)
+ return -1;
+ if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) {
+ SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */
+ return -1;
+ }
+ shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0);
+ if (shm == (char *)-1) /* I hate System V IPC, I really do */
+ return -1;
+ if (optype == OP_SHMREAD) {
+ SvPV_force(mstr, len);
+ mbuf = SvGROW(mstr, msize+1);
+
+ Copy(shm + mpos, mbuf, msize, char);
+ SvCUR_set(mstr, msize);
+ *SvEND(mstr) = '\0';
+ SvSETMAGIC(mstr);
+ }
+ else {
+ I32 n;
+
+ mbuf = SvPV(mstr, len);
+ if ((n = len) > msize)
+ n = msize;
+ Copy(mbuf, shm + mpos, n, char);
+ if (n < msize)
+ memzero(shm + mpos + n, msize - n);
+ }
+ return shmdt(shm);
+#else
+ croak("shm I/O not implemented");
+#endif
+}
+
+#endif /* SYSV IPC */
+
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