1 /* $XConsortium: lndir.c /main/16 1996/09/28 16:16:40 rws $ */
2 /* Create shadow link tree (after X11R4 script of the same name)
3 Mark Reinhold (mbr@lcs.mit.edu)/3 January 1990 */
6 Copyright (c) 1990, X Consortium
8 Permission is hereby granted, free of charge, to any person obtaining a copy
9 of this software and associated documentation files (the "Software"), to deal
10 in the Software without restriction, including without limitation the rights
11 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 copies of the Software, and to permit persons to whom the Software is
13 furnished to do so, subject to the following conditions:
15 The above copyright notice and this permission notice shall be included in
16 all copies or substantial portions of the Software.
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 Except as contained in this notice, the name of the X Consortium shall not be
26 used in advertising or otherwise to promote the sale, use or other dealings
27 in this Software without prior written authorization from the X Consortium.
31 /* From the original /bin/sh script:
33 Used to create a copy of the a directory tree that has links for all
34 non-directories (except those named RCS, SCCS or CVS.adm). If you are
35 building the distribution on more than one machine, you should use
38 If your master sources are located in /usr/local/src/X and you would like
39 your link tree to be in /usr/local/src/new-X, do the following:
41 % mkdir /usr/local/src/new-X
42 % cd /usr/local/src/new-X
46 #include "lndir-Xos.h"
49 #include <sys/param.h>
69 #define MAXPATHLEN 2048
72 #if NeedVarargsPrototypes
79 int silent = 0; /* -silent */
80 int ignore_links = 0; /* -ignorelinks */
87 #if NeedVarargsPrototypes
88 int code, char * fmt, ...)
90 code, fmt, a1, a2, a3)
94 #if NeedVarargsPrototypes
97 vfprintf (stderr, fmt, args);
100 fprintf (stderr, fmt, a1, a2, a3);
116 #if NeedVarargsPrototypes
123 #if NeedVarargsPrototypes
127 fprintf (stderr, "%s:\n", curdir);
130 #if NeedVarargsPrototypes
132 vfprintf (stderr, fmt, args);
135 fprintf (stderr, fmt, a1, a2, a3);
145 fprintf (stderr, "%s:\n", curdir);
152 int equivalent(lname, rname)
158 if (!strcmp(lname, rname))
160 for (s = lname; *s && (s = strchr(s, '/')); s++) {
164 return !strcmp(lname, rname);
168 /* Recursively create symbolic links from the current directory to the "from"
169 directory. Assumes that files described by fs and ts are directories. */
171 dodir (fn, fs, ts, rel)
172 char *fn; /* name of "from" directory, either absolute or
174 struct stat *fs, *ts; /* stats for the "from" directory and cwd */
175 int rel; /* if true, prepend "../" to fn before using */
179 char buf[MAXPATHLEN + 1], *p;
180 char symbuf[MAXPATHLEN + 1];
181 char basesym[MAXPATHLEN + 1];
188 if ((fs->st_dev == ts->st_dev) && (fs->st_ino == ts->st_ino)) {
189 msg ("%s: From and to directories are identical!", fn);
199 if (!(df = opendir (buf))) {
200 msg ("%s: Cannot opendir", buf);
204 p = buf + strlen (buf);
206 n_dirs = fs->st_nlink;
207 while (dp = readdir (df)) {
208 if (dp->d_name[strlen(dp->d_name) - 1] == '~')
210 strcpy (p, dp->d_name);
213 if (stat (buf, &sb) < 0) {
219 if(S_ISDIR(sb.st_mode))
221 if (sb.st_mode & S_IFDIR)
226 if (dp->d_name[0] == '.' &&
227 (dp->d_name[1] == '\0' || (dp->d_name[1] == '.' &&
228 dp->d_name[2] == '\0')))
230 if (!strcmp (dp->d_name, "RCS"))
232 if (!strcmp (dp->d_name, "SCCS"))
234 if (!strcmp (dp->d_name, "CVS"))
236 if (!strcmp (dp->d_name, "CVS.adm"))
240 curdir = silent ? buf : (char *)0;
242 printf ("%s:\n", buf);
243 if ((stat (dp->d_name, &sc) < 0) && (errno == ENOENT)) {
244 if (mkdir (dp->d_name, 0777) < 0 ||
245 stat (dp->d_name, &sc) < 0) {
246 mperror (dp->d_name);
247 curdir = rcurdir = ocurdir;
251 if (readlink (dp->d_name, symbuf, sizeof(symbuf) - 1) >= 0) {
252 msg ("%s: is a link instead of a directory", dp->d_name);
253 curdir = rcurdir = ocurdir;
256 if (chdir (dp->d_name) < 0) {
257 mperror (dp->d_name);
258 curdir = rcurdir = ocurdir;
261 dodir (buf, &sb, &sc, (buf[0] != '/'));
262 if (chdir ("..") < 0)
264 curdir = rcurdir = ocurdir;
270 symlen = readlink (dp->d_name, symbuf, sizeof(symbuf) - 1);
272 symbuf[symlen] = '\0';
274 /* The option to ignore links exists mostly because
275 checking for them slows us down by 10-20%.
276 But it is off by default because this really is a useful check. */
278 /* see if the file in the base tree was a symlink */
279 basesymlen = readlink(buf, basesym, sizeof(basesym) - 1);
281 basesym[basesymlen] = '\0';
285 /* Link exists in new tree. Print message if it doesn't match. */
286 if (!equivalent (basesymlen>=0 ? basesym : buf, symbuf))
287 msg ("%s: %s", dp->d_name, symbuf);
289 if (symlink (basesymlen>=0 ? basesym : buf, dp->d_name) < 0)
290 mperror (dp->d_name);
303 char *prog_name = av[0];
308 if (strcmp(*av, "-silent") == 0)
310 else if (strcmp(*av, "-ignorelinks") == 0)
312 else if (strcmp(*av, "--") == 0) {
320 if (ac < 1 || ac > 2)
321 quit (1, "usage: %s [-silent] [-ignorelinks] fromdir [todir]",
331 if (stat (tn, &ts) < 0)
334 if (!(S_ISDIR(ts.st_mode)))
336 if (!(ts.st_mode & S_IFDIR))
338 quit (2, "%s: Not a directory", tn);
343 if (stat (fn, &fs) < 0)
346 if (!(S_ISDIR(fs.st_mode)))
348 if (!(fs.st_mode & S_IFDIR))
350 quit (2, "%s: Not a directory", fn);
352 exit (dodir (fn, &fs, &ts, 0));