+++ /dev/null
-/* Support for Non-ASCII Path Name
- Copyright (C) 1985, 1986, 1992, 1993, 1995 Free Software Foundation, Inc.
- Copyright (C) 1995 Sun Microsystems, Inc.
-
-This file is part of XEmacs.
-
-XEmacs is free software; you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option) any
-later version.
-
-XEmacs is distributed in the hope that it will be useful, but WITHOUT
-ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-along with XEmacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-/* Synched up with: Mule 2.3. Not in FSF. */
-
-/* mcpath.h should be included in config.h */
-#include <config.h>
-#include "lisp.h"
-
-#include "sysfile.h"
-#include "buffer.h"
-#include "mule.h"
-
-Lisp_Object Qpathname_coding_system = 0;
-
-static void
-mcpath_encode_code (struct Lisp_Coding_System *cp)
-{
- Lisp_Object coding_system;
-
- coding_system = Fsymbol_value (Qpathname_coding_system);
-
- mule_encode_code (coding_system, cp);
- CODE_CNTL (cp) |= CC_END;
-}
-
-static int
-mule_encode_path_1 (unsigned char *src, unsigned int srcsize,
- unsigned char *dst, unsigned int dstsize)
-{
- struct Lisp_Coding_System code;
-
- mcpath_encode_code (&code);
- if (CODE_TYPE (&code) > MULE_AUTOCONV)
- {
- unsigned char *buf;
-
- /* get_conversion_buffer () is not */
- /* re-entrant. */
- buf = (unsigned char *) alloca (MULE_ENCODE_BUF_SIZE (srcsize, &code));
- if (buf)
- {
- int len;
- Lisp_Object dummy = Qnil;
-
- len = mule_encode (&code, src, buf, srcsize, &dummy);
- if (!CODE_CHAR (&code) && len <= dstsize)
- {
- memcpy (dst, buf, len);
- return len;
- }
- }
- }
- return -1; /* use original */
-}
-
-static unsigned char *
-mule_decode_path_1 (unsigned char *src, unsigned char *dst,
- unsigned int dstsize)
-{
- struct Lisp_Coding_System code;
-
- mcpath_encode_code (&code);
- if (CODE_TYPE (&code) > MULE_AUTOCONV)
- {
- int len;
- unsigned char *buf;
-
- len = strlen (src) + 1; /* + 1 for '\0' */
-
- /* get_conversion_buffer () is not */
- /* re-entrant. */
- buf = (unsigned char *) alloca (MULE_DECODE_BUF_SIZE (len, &code));
- if (buf)
- {
- CODE_CNTL (&code) |= CC_END;
- len = mule_decode (&code, src, buf, len);
- if (!CODE_CHAR (&code) && len <= dstsize)
- {
- memcpy (dst, buf, len); /* len should include '\0' */
- return dst;
- }
- }
- }
- return src;
-}
-
-static unsigned char *
-mule_decode_path (unsigned char *path, unsigned char ext_path[MC_MAXPATHLEN])
-{
- return
- (Qpathname_coding_system
- ? mule_decode_path_1 (path, ext_path, MC_MAXPATHLEN)
- : path); /* in case of before initialization */
-}
-
-static unsigned char *
-mule_encode_path (unsigned char *path, unsigned char *encode_buffer,
- unsigned int size)
-{
- int len;
-
- len = mule_encode_path_1 (path, strlen (path), encode_buffer, size);
- if (len > 0)
- path = encode_buffer;
-#ifdef MSDOS
- /* convert the MSDOS style path delimiter to the UNIX style. Note
- that now the code is *internal*, so we can simply compare each
- character with '\\'. And this operation will alter the contents
- of Lisp Object, PATH. */
- {
- unsigned char *p = path;
-
- while (*p)
- {
- if (*p == '\\')
- *p = '/';
- p++;
- }
- }
-#endif /* MSDOS */
- return path;
-}
-
-#if 0 /* example of how they do it (similar junk deleted) ... */
-
-int
-mc_creat (unsigned char *path, int mode)
-{
- unsigned char buffer[MC_MAXPATHLEN];
- return creat (mule_decode_path (path, buffer), mode);
-}
-
-int
-mc_readlink (unsigned char *path, unsigned char *buf, int size)
-{
- unsigned char buffer[MC_MAXPATHLEN], buffer2[MAXPATHLEN];
- int nread;
-
- nread = readlink (mule_decode_path (path, buffer), buffer2, MAXPATHLEN);
- if (nread > 0)
- {
- int len;
- unsigned char *p;
-
- len = mule_encode_path_1 (buffer2, nread, buffer, sizeof (buffer));
- if (0 <= len && len <= size)
- {
- memcpy (buf, buffer, len);
- return len;
- }
- }
- return -1;
-}
-
-int
-mc_chdir (unsigned char *path)
-{
- unsigned char buffer[MC_MAXPATHLEN];
-
- path = mule_decode_path (path, buffer);
-
-#ifdef MSDOS
- if ((path[0] != 0) && (path[1] == ':'))
- {
- int drive = (tolower (path[0]) - 'a');
- if (getdisk () != drive)
- setdisk (drive);
- }
-
- /* If path != "/" and path != "a:/" and path ends with slash, remove
- it. */
- {
- int len = strlen (path);
-
- if (strcmp (path + 1, ":/") && (len > 1) && (path[len - 1] == '/'))
- {
- if (path != buffer) /* It is not good to modify original path. */
- {
- memcpy (buffer, path, len - 1); /* no need to copy last /. */
- path = buffer;
- }
- path[len - 1] = 0;
- }
- }
-#endif /* MSDOS */
-
- return chdir (path);
-}
-
-#ifdef MSDOS
-#ifndef HAVE_GETWD
-unsigned char *
-mc_getcwd (unsigned char *null, size_t size)
-{
- unsigned char buffer[MAXPATHLEN];
- unsigned char *path;
-
- path = (unsigned char *) getcwd ((char *)buffer, MAXPATHLEN);
- if (path)
- {
- /* here, shoule be (path == buffer). */
- path = (unsigned char *) xmalloc (MC_MAXPATHLEN); /* MSDOS */
- if (path)
- {
- int len;
- int buffer_length = strlen (buffer) + 1;
-
- len = mule_encode_path_1 (buffer, buffer_length, path, MC_MAXPATHLEN);
- if (len < 0)
- {
- /* conversion failed. use value that is returned from system. */
- memcpy (path, buffer, buffer_length);
- }
- }
- }
- return path;
-}
-#else /* HAVE_GETWD */
-unsigned char *
-mc_getwd (unsigned char path[])
-{
- unsigned char *p;
-
- p = getwd (path);
- if (p)
- {
- unsigned char buffer[MC_MAXPATHLEN];
- int len;
-
- len = mule_encode_path_1 (path, strlen (path) + 1, buffer, sizeof buffer);
- if (len > 0)
- {
- memcpy (path, buffer, len);
- }
- }
- return p;
-}
-#endif /* HAVE_GETWD */
-#endif /* MSDOS */
-
-/* In callproc.c, execvp() is called like this:
- * execvp (new_argv[0], new_argv);
- * following implement depends this.
- */
-#ifndef NO_MC_EXECVP
-void
-mc_execvp (unsigned char *path, unsigned char *argv[])
-{
- unsigned char buffer[MC_MAXPATHLEN];
- argv[0] = path = mule_decode_path (path, buffer);
- execvp (path, argv);
-}
-#endif /* !NO_MC_EXECVP */
-
-static DIRENTRY mcpath_directory_entry;
-DIRENTRY *
-mc_readdir (DIR *d)
-{
- SYSTEM_DIRENTRY *sp;
- DIRENTRY *dp = &mcpath_directory_entry;
-
- sp = readdir (d);
- if (!sp) return 0;
-
-#ifndef MSDOS
- dp->d_ino = sp->d_ino;
-#endif /* MSDOS */
- { /* copy d_name with conversion. */
- int len;
-
- len = mule_encode_path_1 (sp->d_name, NAMLEN (sp),
- dp->d_name, sizeof (dp->d_name) - 1);
- if (len < 0)
- {
- len = NAMLEN (sp);
-#ifdef MCPATH_ASSERT
- assert (len < sizeof (dp->d_name));
-#endif
- memcpy (dp->d_name, sp->d_name, len);
- }
- dp->d_name[len] = 0;
- }
- return dp;
-}
-
-#endif /* 0 */
-
projects / chise / xemacs-chise.git.1 / blobdiff