1 /* vi: set sw=4 ts=4: */
3 * public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
6 * Make ranges of device files quickly.
7 * known bugs: can't deal with alpha ranges
12 #ifdef CONFIG_FEATURE_MAKEDEVS_LEAF
13 int makedevs_main(int argc, char **argv)
16 char *basedev, *type, *nodname, buf[255];
17 int Smajor, Sminor, S, E;
19 if (argc < 7 || *argv[1]=='-')
24 Smajor = atoi(argv[3]);
25 Sminor = atoi(argv[4]);
28 nodname = argc == 8 ? basedev : buf;
49 sz = snprintf(buf, sizeof(buf), "%s%d", basedev, S);
50 if(sz<0 || sz>=sizeof(buf)) /* libc different */
51 bb_error_msg_and_die("%s too large", basedev);
53 /* if mode != S_IFCHR and != S_IFBLK third param in mknod() ignored */
55 if (mknod(nodname, mode, makedev(Smajor, Sminor)))
56 bb_error_msg("Failed to create: %s", nodname);
58 if (nodname == basedev) /* ex. /dev/hda - to /dev/hda1 ... */
67 #elif defined CONFIG_FEATURE_MAKEDEVS_TABLE
69 /* Licensed under the GPL v2 or later, see the file LICENSE in this tarball. */
71 int makedevs_main(int argc, char **argv)
77 int ret = EXIT_SUCCESS;
80 flags = bb_getopt_ulflags(argc, argv, "d:", &line);
82 table = xfopen(line, "r");
84 if (optind >= argc || (rootdir=argv[optind])==NULL) {
85 bb_error_msg_and_die("root directory not specified");
92 printf("rootdir=%s\n", rootdir);
94 printf("table='%s'\n", line);
96 printf("table=<stdin>\n");
99 while ((line = bb_get_chomped_line_from_file(table))) {
101 unsigned int mode = 0755;
102 unsigned int major = 0;
103 unsigned int minor = 0;
104 unsigned int count = 0;
105 unsigned int increment = 0;
106 unsigned int start = 0;
116 if ((2 > sscanf(line, "%40s %c %o %40s %40s %u %u %u %u %u", name,
117 &type, &mode, user, group, &major,
118 &minor, &start, &increment, &count)) ||
119 ((major | minor | start | count | increment) > 255))
121 if (*line=='\0' || *line=='#' || isspace(*line))
123 bb_error_msg("line %d invalid: '%s'\n", linenum, line);
127 if (name[0] == '#') {
131 gid = (*group) ? get_ug_id(group, bb_xgetgrnam) : getgid();
132 uid = (*user) ? get_ug_id(user, bb_xgetpwnam) : getuid();
133 full_name = concat_path_file(rootdir, name);
136 bb_make_directory(full_name, mode | S_IFDIR, FILEUTILS_RECUR);
137 if (chown(full_name, uid, gid) == -1) {
138 bb_perror_msg("line %d: chown failed for %s", linenum, full_name);
142 if ((mode != -1) && (chmod(full_name, mode) < 0)){
143 bb_perror_msg("line %d: chmod failed for %s", linenum, full_name);
147 } else if (type == 'f') {
149 if ((stat(full_name, &st) < 0 || !S_ISREG(st.st_mode))) {
150 bb_perror_msg("line %d: regular file '%s' does not exist", linenum, full_name);
154 if (chown(full_name, uid, gid) == -1) {
155 bb_perror_msg("line %d: chown failed for %s", linenum, full_name);
159 if ((mode != -1) && (chmod(full_name, mode) < 0)){
160 bb_perror_msg("line %d: chmod failed for %s", linenum, full_name);
171 else if (type == 'c') {
174 else if (type == 'b') {
177 bb_error_msg("line %d: unsupported file type %c", linenum, type);
186 full_name_inc = xmalloc(strlen(full_name) + 4);
187 for (i = start; i < count; i++) {
188 sprintf(full_name_inc, "%s%d", full_name, i);
189 rdev = (major << 8) + minor + (i * increment - start);
190 if (mknod(full_name_inc, mode, rdev) == -1) {
191 bb_perror_msg("line %d: could not create node %s", linenum, full_name_inc);
194 else if (chown(full_name_inc, uid, gid) == -1) {
195 bb_perror_msg("line %d: chown failed for %s", linenum, full_name_inc);
198 if ((mode != -1) && (chmod(full_name_inc, mode) < 0)){
199 bb_perror_msg("line %d: chmod failed for %s", linenum, full_name_inc);
205 rdev = (major << 8) + minor;
206 if (mknod(full_name, mode, rdev) == -1) {
207 bb_perror_msg("line %d: could not create node %s", linenum, full_name);
210 else if (chown(full_name, uid, gid) == -1) {
211 bb_perror_msg("line %d: chown failed for %s", linenum, full_name);
214 if ((mode != -1) && (chmod(full_name, mode) < 0)){
215 bb_perror_msg("line %d: chmod failed for %s", linenum, full_name);
230 # error makedevs configuration error, either leaf or table must be selected