R6.6 is the Xorg base-lineXORG-MAINXORG-STABLE

1 files changed, 353 insertions, 0 deletions

diff --git a/lndir.c b/lndir.c
new file mode 100644
index 0000000..470c432
--- /dev/null
+++ b/lndir.c
@@ -0,0 +1,353 @@
+/* $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.
+
+*/
+
+/* From the original /bin/sh script:
+
+  Used to create a copy of the a directory tree that has links for all
+  non-directories (except those named 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 <sys/stat.h>
+#include <sys/param.h>
+#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
+
+#if NeedVarargsPrototypes
+#include <stdarg.h>
+#endif
+
+#ifdef X_NOT_STDC_ENV
+extern int errno;
+#endif
+int silent = 0;			/* -silent */
+int ignore_links = 0;		/* -ignorelinks */
+
+char *rcurdir;
+char *curdir;
+
+void
+quit (
+#if NeedVarargsPrototypes
+    int code, char * fmt, ...)
+#else
+    code, fmt, a1, a2, a3)
+    char *fmt;
+#endif
+{
+#if NeedVarargsPrototypes
+    va_list args;
+    va_start(args, fmt);
+    vfprintf (stderr, fmt, args);
+    va_end(args);
+#else
+    fprintf (stderr, fmt, a1, a2, a3);
+#endif
+    putc ('\n', stderr);
+    exit (code);
+}
+
+void
+quiterr (code, s)
+    char *s;
+{
+    perror (s);
+    exit (code);
+}
+
+void
+msg (
+#if NeedVarargsPrototypes
+    char * fmt, ...)
+#else
+    fmt, a1, a2, a3)
+    char *fmt;
+#endif
+{
+#if NeedVarargsPrototypes
+    va_list args;
+#endif
+    if (curdir) {
+	fprintf (stderr, "%s:\n", curdir);
+	curdir = 0;
+    }
+#if NeedVarargsPrototypes
+    va_start(args, fmt);
+    vfprintf (stderr, fmt, args);
+    va_end(args);
+#else
+    fprintf (stderr, fmt, a1, a2, a3);
+#endif
+    putc ('\n', stderr);
+}
+
+void
+mperror (s)
+    char *s;
+{
+    if (curdir) {
+	fprintf (stderr, "%s:\n", curdir);
+	curdir = 0;
+    }
+    perror (s);
+}
+
+
+int equivalent(lname, rname)
+    char *lname;
+    char *rname;
+{
+    char *s;
+
+    if (!strcmp(lname, rname))
+	return 1;
+    for (s = lname; *s && (s = strchr(s, '/')); s++) {
+	while (s[1] == '/')
+	    strcpy(s+1, s+2);
+    }
+    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. */
+
+dodir (fn, fs, ts, rel)
+char *fn;			/* name of "from" directory, either absolute or
+				   relative to cwd */
+struct stat *fs, *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);
+    *p++ = '/';
+    n_dirs = fs->st_nlink;
+    while ((dp = readdir (df))) {
+	if (dp->d_name[strlen(dp->d_name) - 1] == '~')
+	    continue;
+	strcpy (p, dp->d_name);
+
+	if (n_dirs > 0) {
+	    if (stat (buf, &sb) < 0) {
+		mperror (buf);
+		continue;
+	    }
+
+#ifdef S_ISDIR
+	    if(S_ISDIR(sb.st_mode))
+#else
+	    if (sb.st_mode & 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 (!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;
+		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))
+		msg ("%s: %s", dp->d_name, symbuf);
+	} else {
+	    if (symlink (basesymlen>=0 ? basesym : buf, dp->d_name) < 0)
+		mperror (dp->d_name);
+	}
+    }
+
+    closedir (df);
+    return 0;
+}
+
+
+main (ac, av)
+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, "--") == 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_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_IFDIR))
+#endif
+	quit (2, "%s: Not a directory", fn);
+
+    exit (dodir (fn, &fs, &ts, 0));
+}