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Diffstat (limited to 'nx-X11/config/util/lndir.c')
-rw-r--r--nx-X11/config/util/lndir.c391
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diff --git a/nx-X11/config/util/lndir.c b/nx-X11/config/util/lndir.c
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+++ b/nx-X11/config/util/lndir.c
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+/* $Xorg: lndir.c,v 1.5 2001/02/09 02:03:17 xorgcvs Exp $ */
+/* Create shadow link tree (after X11R4 script of the same name)
+ Mark Reinhold (mbr@lcs.mit.edu)/3 January 1990 */
+
+/*
+Copyright (c) 1990, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+/* $XFree86: xc/config/util/lndir.c,v 3.18 2003/06/24 15:44:45 eich Exp $ */
+
+/* From the original /bin/sh script:
+
+ Used to create a copy of the a directory tree that has links for all
+ non-directories (except, by default, those named BitKeeper, RCS, SCCS
+ or CVS.adm). If you are building the distribution on more than one
+ machine, you should use this technique.
+
+ If your master sources are located in /usr/local/src/X and you would like
+ your link tree to be in /usr/local/src/new-X, do the following:
+
+ % mkdir /usr/local/src/new-X
+ % cd /usr/local/src/new-X
+ % lndir ../X
+*/
+
+#include <X11/Xos.h>
+#include <X11/Xfuncproto.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#if !defined(MINIX) && !defined(Lynx)
+#include <sys/param.h>
+#endif
+#include <errno.h>
+
+#ifndef X_NOT_POSIX
+#include <dirent.h>
+#else
+#ifdef SYSV
+#include <dirent.h>
+#else
+#ifdef USG
+#include <dirent.h>
+#else
+#include <sys/dir.h>
+#ifndef dirent
+#define dirent direct
+#endif
+#endif
+#endif
+#endif
+#ifndef MAXPATHLEN
+#define MAXPATHLEN 2048
+#endif
+
+#include <stdarg.h>
+
+int silent = 0; /* -silent */
+int ignore_links = 0; /* -ignorelinks */
+int with_revinfo = 0; /* -withrevinfo */
+
+char *rcurdir;
+char *curdir;
+
+static void
+quit (int code, char * fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ vfprintf (stderr, fmt, args);
+ va_end(args);
+ putc ('\n', stderr);
+ exit (code);
+}
+
+static void
+quiterr (int code, char *s)
+{
+ perror (s);
+ exit (code);
+}
+
+static void
+msg (char * fmt, ...)
+{
+ va_list args;
+ if (curdir) {
+ fprintf (stderr, "%s:\n", curdir);
+ curdir = 0;
+ }
+ va_start(args, fmt);
+ vfprintf (stderr, fmt, args);
+ va_end(args);
+ putc ('\n', stderr);
+}
+
+static void
+mperror (char *s)
+{
+ if (curdir) {
+ fprintf (stderr, "%s:\n", curdir);
+ curdir = 0;
+ }
+ perror (s);
+}
+
+
+static int
+equivalent(char *lname, char *rname, char **p)
+{
+ char *s;
+
+ if (!strcmp(lname, rname))
+ return 1;
+ for (s = lname; *s && (s = strchr(s, '/')); s++) {
+ while (s[1] == '/') {
+ strcpy(s+1, s+2);
+ if (*p) (*p)--;
+ }
+ }
+ return !strcmp(lname, rname);
+}
+
+
+/* Recursively create symbolic links from the current directory to the "from"
+ directory. Assumes that files described by fs and ts are directories. */
+static int
+dodir (char *fn, /* name of "from" directory, either absolute or
+ relative to cwd */
+ struct stat *fs,
+ struct stat *ts, /* stats for the "from" directory and cwd */
+ int rel) /* if true, prepend "../" to fn before using */
+{
+ DIR *df;
+ struct dirent *dp;
+ char buf[MAXPATHLEN + 1], *p;
+ char symbuf[MAXPATHLEN + 1];
+ char basesym[MAXPATHLEN + 1];
+ struct stat sb, sc;
+ int n_dirs;
+ int symlen;
+ int basesymlen = -1;
+ char *ocurdir;
+
+ if ((fs->st_dev == ts->st_dev) && (fs->st_ino == ts->st_ino)) {
+ msg ("%s: From and to directories are identical!", fn);
+ return 1;
+ }
+
+ if (rel)
+ strcpy (buf, "../");
+ else
+ buf[0] = '\0';
+ strcat (buf, fn);
+
+ if (!(df = opendir (buf))) {
+ msg ("%s: Cannot opendir", buf);
+ return 1;
+ }
+
+ p = buf + strlen (buf);
+ if (*(p - 1) != '/')
+ *p++ = '/';
+ n_dirs = fs->st_nlink;
+ while ((dp = readdir (df))) {
+ if (dp->d_name[strlen(dp->d_name) - 1] == '~')
+ continue;
+#ifdef __DARWIN__
+ /* Ignore these Mac OS X Finder data files */
+ if (!strcmp(dp->d_name, ".DS_Store") ||
+ !strcmp(dp->d_name, "._.DS_Store"))
+ continue;
+#endif
+ strcpy (p, dp->d_name);
+
+ if (n_dirs > 0) {
+ if (lstat (buf, &sb) < 0) {
+ mperror (buf);
+ continue;
+ }
+
+#ifdef S_ISDIR
+ if(S_ISDIR(sb.st_mode))
+#else
+ if ((sb.st_mode & S_IFMT) == S_IFDIR)
+#endif
+ {
+ /* directory */
+ n_dirs--;
+ if (dp->d_name[0] == '.' &&
+ (dp->d_name[1] == '\0' || (dp->d_name[1] == '.' &&
+ dp->d_name[2] == '\0')))
+ continue;
+ if (!with_revinfo) {
+ if (!strcmp (dp->d_name, "BitKeeper"))
+ continue;
+ if (!strcmp (dp->d_name, "RCS"))
+ continue;
+ if (!strcmp (dp->d_name, "SCCS"))
+ continue;
+ if (!strcmp (dp->d_name, "CVS"))
+ continue;
+ if (!strcmp (dp->d_name, "CVS.adm"))
+ continue;
+ if (!strcmp (dp->d_name, ".svn"))
+ continue;
+ }
+ ocurdir = rcurdir;
+ rcurdir = buf;
+ curdir = silent ? buf : (char *)0;
+ if (!silent)
+ printf ("%s:\n", buf);
+ if ((stat (dp->d_name, &sc) < 0) && (errno == ENOENT)) {
+ if (mkdir (dp->d_name, 0777) < 0 ||
+ stat (dp->d_name, &sc) < 0) {
+ mperror (dp->d_name);
+ curdir = rcurdir = ocurdir;
+ continue;
+ }
+ }
+ if (readlink (dp->d_name, symbuf, sizeof(symbuf) - 1) >= 0) {
+ msg ("%s: is a link instead of a directory", dp->d_name);
+ curdir = rcurdir = ocurdir;
+ continue;
+ }
+ if (chdir (dp->d_name) < 0) {
+ mperror (dp->d_name);
+ curdir = rcurdir = ocurdir;
+ continue;
+ }
+ dodir (buf, &sb, &sc, (buf[0] != '/'));
+ if (chdir ("..") < 0)
+ quiterr (1, "..");
+ curdir = rcurdir = ocurdir;
+ continue;
+ }
+ }
+
+ /* non-directory */
+ symlen = readlink (dp->d_name, symbuf, sizeof(symbuf) - 1);
+ if (symlen >= 0)
+ symbuf[symlen] = '\0';
+
+ /* The option to ignore links exists mostly because
+ checking for them slows us down by 10-20%.
+ But it is off by default because this really is a useful check. */
+ if (!ignore_links) {
+ /* see if the file in the base tree was a symlink */
+ basesymlen = readlink(buf, basesym, sizeof(basesym) - 1);
+ if (basesymlen >= 0)
+ basesym[basesymlen] = '\0';
+ }
+
+ if (symlen >= 0) {
+ /* Link exists in new tree. Print message if it doesn't match. */
+ if (!equivalent (basesymlen>=0 ? basesym : buf, symbuf,
+ basesymlen>=0 ? (char **) 0 : &p))
+ msg ("%s: %s", dp->d_name, symbuf);
+ } else {
+ char *sympath;
+
+ if (basesymlen>=0) {
+ if ((buf[0] == '.') && (buf[1] == '.') && (buf[2] == '/') &&
+ (basesym[0] == '.') && (basesym[1] == '.') &&
+ (basesym[2] == '/')) {
+ /* It becomes very tricky here. We have
+ ../../bar/foo symlinked to ../xxx/yyy. We
+ can't just use ../xxx/yyy. We have to use
+ ../../bar/foo/../xxx/yyy. */
+
+ int i;
+ char *start, *end;
+
+ strcpy (symbuf, buf);
+ /* Find the first char after "../" in symbuf. */
+ start = symbuf;
+ do {
+ start += 3;
+ } while ((start[0] == '.') && (start[1] == '.') &&
+ (start[2] == '/'));
+
+ /* Then try to eliminate "../"s in basesym. */
+ i = 0;
+ end = strrchr (symbuf, '/');
+ if (start < end) {
+ do {
+ i += 3;
+ end--;
+ while ((*end != '/') && (end != start))
+ end--;
+ if (end == start)
+ break;
+ } while ((basesym[i] == '.') &&
+ (basesym[i + 1] == '.') &&
+ (basesym[i + 2] == '/'));
+ }
+ if (*end == '/')
+ end++;
+ strcpy (end, &basesym[i]);
+ sympath = symbuf;
+ }
+ else
+ sympath = basesym;
+ }
+ else
+ sympath = buf;
+ if (symlink (sympath, dp->d_name) < 0)
+ mperror (dp->d_name);
+ }
+ }
+
+ closedir (df);
+ return 0;
+}
+
+int
+main (int ac, char *av[])
+{
+ char *prog_name = av[0];
+ char *fn, *tn;
+ struct stat fs, ts;
+
+ while (++av, --ac) {
+ if (strcmp(*av, "-silent") == 0)
+ silent = 1;
+ else if (strcmp(*av, "-ignorelinks") == 0)
+ ignore_links = 1;
+ else if (strcmp(*av, "-withrevinfo") == 0)
+ with_revinfo = 1;
+ else if (strcmp(*av, "--") == 0) {
+ ++av, --ac;
+ break;
+ }
+ else
+ break;
+ }
+
+ if (ac < 1 || ac > 2)
+ quit (1, "usage: %s [-silent] [-ignorelinks] fromdir [todir]",
+ prog_name);
+
+ fn = av[0];
+ if (ac == 2)
+ tn = av[1];
+ else
+ tn = ".";
+
+ /* to directory */
+ if (stat (tn, &ts) < 0)
+ quiterr (1, tn);
+#ifdef S_ISDIR
+ if (!(S_ISDIR(ts.st_mode)))
+#else
+ if (!(ts.st_mode & S_IFMT) == S_IFDIR)
+#endif
+ quit (2, "%s: Not a directory", tn);
+ if (chdir (tn) < 0)
+ quiterr (1, tn);
+
+ /* from directory */
+ if (stat (fn, &fs) < 0)
+ quiterr (1, fn);
+#ifdef S_ISDIR
+ if (!(S_ISDIR(fs.st_mode)))
+#else
+ if (!(fs.st_mode & S_IFMT) == S_IFDIR)
+#endif
+ quit (2, "%s: Not a directory", fn);
+
+ exit (dodir (fn, &fs, &ts, 0));
+}
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