1 /* $XConsortium: lndir.c /main/16 1996/09/28 16:16:40 rws $ */
2 /* $XFree86: xc/config/util/lndir.c,v 3.6 1997/01/18 06:51:01 dawes Exp $ */
3 /* Create shadow link tree (after X11R4 script of the same name)
4 Mark Reinhold (mbr@lcs.mit.edu)/3 January 1990 */
7 Copyright (c) 1990, X Consortium
9 Permission is hereby granted, free of charge, to any person obtaining a copy
10 of this software and associated documentation files (the "Software"), to deal
11 in the Software without restriction, including without limitation the rights
12 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 copies of the Software, and to permit persons to whom the Software is
14 furnished to do so, subject to the following conditions:
16 The above copyright notice and this permission notice shall be included in
17 all copies or substantial portions of the Software.
19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 Except as contained in this notice, the name of the X Consortium shall not be
27 used in advertising or otherwise to promote the sale, use or other dealings
28 in this Software without prior written authorization from the X Consortium.
32 /* From the original /bin/sh script:
34 Used to create a copy of the a directory tree that has links for all
35 non-directories (except those named RCS, SCCS or CVS.adm). If you are
36 building the distribution on more than one machine, you should use
39 If your master sources are located in /usr/local/src/X and you would like
40 your link tree to be in /usr/local/src/new-X, do the following:
42 % mkdir /usr/local/src/new-X
43 % cd /usr/local/src/new-X
48 #include <X11/Xfuncproto.h>
51 #if !defined(MINIX) && !defined(Lynx)
52 #include <sys/param.h>
73 #define MAXPATHLEN 2048
76 #if NeedVarargsPrototypes
83 int silent = 0; /* -silent */
84 int ignore_links = 0; /* -ignorelinks */
91 #if NeedVarargsPrototypes
92 int code, char * fmt, ...)
94 code, fmt, a1, a2, a3)
98 #if NeedVarargsPrototypes
101 vfprintf (stderr, fmt, args);
104 fprintf (stderr, fmt, a1, a2, a3);
120 #if NeedVarargsPrototypes
127 #if NeedVarargsPrototypes
131 fprintf (stderr, "%s:\n", curdir);
134 #if NeedVarargsPrototypes
136 vfprintf (stderr, fmt, args);
139 fprintf (stderr, fmt, a1, a2, a3);
149 fprintf (stderr, "%s:\n", curdir);
156 int equivalent(lname, rname)
162 if (!strcmp(lname, rname))
164 for (s = lname; *s && (s = strchr(s, '/')); s++) {
168 return !strcmp(lname, rname);
172 /* Recursively create symbolic links from the current directory to the "from"
173 directory. Assumes that files described by fs and ts are directories. */
175 dodir (fn, fs, ts, rel)
176 char *fn; /* name of "from" directory, either absolute or
178 struct stat *fs, *ts; /* stats for the "from" directory and cwd */
179 int rel; /* if true, prepend "../" to fn before using */
183 char buf[MAXPATHLEN + 1], *p;
184 char symbuf[MAXPATHLEN + 1];
185 char basesym[MAXPATHLEN + 1];
192 if ((fs->st_dev == ts->st_dev) && (fs->st_ino == ts->st_ino)) {
193 msg ("%s: From and to directories are identical!", fn);
203 if (!(df = opendir (buf))) {
204 msg ("%s: Cannot opendir", buf);
208 p = buf + strlen (buf);
210 n_dirs = fs->st_nlink;
211 while (dp = readdir (df)) {
212 if (dp->d_name[strlen(dp->d_name) - 1] == '~')
214 strcpy (p, dp->d_name);
217 if (stat (buf, &sb) < 0) {
223 if(S_ISDIR(sb.st_mode))
225 if (sb.st_mode & S_IFDIR)
230 if (dp->d_name[0] == '.' &&
231 (dp->d_name[1] == '\0' || (dp->d_name[1] == '.' &&
232 dp->d_name[2] == '\0')))
234 if (!strcmp (dp->d_name, "RCS"))
236 if (!strcmp (dp->d_name, "SCCS"))
238 if (!strcmp (dp->d_name, "CVS"))
240 if (!strcmp (dp->d_name, "CVS.adm"))
244 curdir = silent ? buf : (char *)0;
246 printf ("%s:\n", buf);
247 if ((stat (dp->d_name, &sc) < 0) && (errno == ENOENT)) {
248 if (mkdir (dp->d_name, 0777) < 0 ||
249 stat (dp->d_name, &sc) < 0) {
250 mperror (dp->d_name);
251 curdir = rcurdir = ocurdir;
255 if (readlink (dp->d_name, symbuf, sizeof(symbuf) - 1) >= 0) {
256 msg ("%s: is a link instead of a directory", dp->d_name);
257 curdir = rcurdir = ocurdir;
260 if (chdir (dp->d_name) < 0) {
261 mperror (dp->d_name);
262 curdir = rcurdir = ocurdir;
265 dodir (buf, &sb, &sc, (buf[0] != '/'));
266 if (chdir ("..") < 0)
268 curdir = rcurdir = ocurdir;
274 symlen = readlink (dp->d_name, symbuf, sizeof(symbuf) - 1);
276 symbuf[symlen] = '\0';
278 /* The option to ignore links exists mostly because
279 checking for them slows us down by 10-20%.
280 But it is off by default because this really is a useful check. */
282 /* see if the file in the base tree was a symlink */
283 basesymlen = readlink(buf, basesym, sizeof(basesym) - 1);
285 basesym[basesymlen] = '\0';
289 /* Link exists in new tree. Print message if it doesn't match. */
290 if (!equivalent (basesymlen>=0 ? basesym : buf, symbuf))
291 msg ("%s: %s", dp->d_name, symbuf);
293 if (symlink (basesymlen>=0 ? basesym : buf, dp->d_name) < 0)
294 mperror (dp->d_name);
307 char *prog_name = av[0];
312 if (strcmp(*av, "-silent") == 0)
314 else if (strcmp(*av, "-ignorelinks") == 0)
316 else if (strcmp(*av, "--") == 0) {
324 if (ac < 1 || ac > 2)
325 quit (1, "usage: %s [-silent] [-ignorelinks] fromdir [todir]",
335 if (stat (tn, &ts) < 0)
338 if (!(S_ISDIR(ts.st_mode)))
340 if (!(ts.st_mode & S_IFDIR))
342 quit (2, "%s: Not a directory", tn);
347 if (stat (fn, &fs) < 0)
350 if (!(S_ISDIR(fs.st_mode)))
352 if (!(fs.st_mode & S_IFDIR))
354 quit (2, "%s: Not a directory", fn);
356 exit (dodir (fn, &fs, &ts, 0));