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
17 #include <sys/types.h>
18 #include <sys/sysmacros.h> /* major() and minor() */
21 #ifdef CONFIG_FEATURE_MAKEDEVS_LEAF
22 int makedevs_main(int argc, char **argv)
25 char *basedev, *type, *nodname, buf[255];
26 int Smajor, Sminor, S, E;
28 if (argc < 7 || *argv[1]=='-')
33 Smajor = atoi(argv[3]);
34 Sminor = atoi(argv[4]);
37 nodname = argc == 8 ? basedev : buf;
58 sz = snprintf(buf, sizeof(buf), "%s%d", basedev, S);
59 if(sz<0 || sz>=sizeof(buf)) /* libc different */
60 bb_error_msg_and_die("%s too large", basedev);
62 /* if mode != S_IFCHR and != S_IFBLK third param in mknod() ignored */
64 if (mknod(nodname, mode, makedev(Smajor, Sminor)))
65 bb_error_msg("Failed to create: %s", nodname);
67 if (nodname == basedev) /* ex. /dev/hda - to /dev/hda1 ... */
76 #elif defined CONFIG_FEATURE_MAKEDEVS_TABLE
78 /* Licensed under the GPL v2 or later, see the file LICENSE in this tarball. */
80 int makedevs_main(int argc, char **argv)
86 int ret = EXIT_SUCCESS;
89 flags = bb_getopt_ulflags(argc, argv, "d:", &line);
91 table = bb_xfopen(line, "r");
93 if (optind >= argc || (rootdir=argv[optind])==NULL) {
94 bb_error_msg_and_die("root directory not specified");
101 printf("rootdir=%s\n", rootdir);
103 printf("table='%s'\n", line);
105 printf("table=<stdin>\n");
108 while ((line = bb_get_chomped_line_from_file(table))) {
110 unsigned int mode = 0755;
111 unsigned int major = 0;
112 unsigned int minor = 0;
113 unsigned int count = 0;
114 unsigned int increment = 0;
115 unsigned int start = 0;
125 if ((2 > sscanf(line, "%40s %c %o %40s %40s %u %u %u %u %u", name,
126 &type, &mode, user, group, &major,
127 &minor, &start, &increment, &count)) ||
128 ((major | minor | start | count | increment) > 255))
130 if (*line=='\0' || *line=='#' || isspace(*line))
132 bb_error_msg("line %d invalid: '%s'\n", linenum, line);
136 if (name[0] == '#') {
140 gid = (*group) ? get_ug_id(group, bb_xgetgrnam) : getgid();
141 uid = (*user) ? get_ug_id(user, bb_xgetpwnam) : getuid();
142 full_name = concat_path_file(rootdir, name);
145 bb_make_directory(full_name, mode | S_IFDIR, FILEUTILS_RECUR);
146 if (chown(full_name, uid, gid) == -1) {
147 bb_perror_msg("line %d: chown failed for %s", linenum, full_name);
151 if ((mode != -1) && (chmod(full_name, mode) < 0)){
152 bb_perror_msg("line %d: chmod failed for %s", linenum, full_name);
156 } else if (type == 'f') {
158 if ((stat(full_name, &st) < 0 || !S_ISREG(st.st_mode))) {
159 bb_perror_msg("line %d: regular file '%s' does not exist", linenum, full_name);
163 if (chown(full_name, uid, gid) == -1) {
164 bb_perror_msg("line %d: chown failed for %s", linenum, full_name);
168 if ((mode != -1) && (chmod(full_name, mode) < 0)){
169 bb_perror_msg("line %d: chmod failed for %s", linenum, full_name);
180 else if (type == 'c') {
183 else if (type == 'b') {
186 bb_error_msg("line %d: unsupported file type %c", linenum, type);
195 full_name_inc = xmalloc(strlen(full_name) + 4);
196 for (i = start; i < count; i++) {
197 sprintf(full_name_inc, "%s%d", full_name, i);
198 rdev = (major << 8) + minor + (i * increment - start);
199 if (mknod(full_name_inc, mode, rdev) == -1) {
200 bb_perror_msg("line %d: could not create node %s", linenum, full_name_inc);
203 else if (chown(full_name_inc, uid, gid) == -1) {
204 bb_perror_msg("line %d: chown failed for %s", linenum, full_name_inc);
207 if ((mode != -1) && (chmod(full_name_inc, mode) < 0)){
208 bb_perror_msg("line %d: chmod failed for %s", linenum, full_name_inc);
214 rdev = (major << 8) + minor;
215 if (mknod(full_name, mode, rdev) == -1) {
216 bb_perror_msg("line %d: could not create node %s", linenum, full_name);
219 else if (chown(full_name, uid, gid) == -1) {
220 bb_perror_msg("line %d: chown failed for %s", linenum, full_name);
223 if ((mode != -1) && (chmod(full_name, mode) < 0)){
224 bb_perror_msg("line %d: chmod failed for %s", linenum, full_name);
239 # error makedevs configuration error, either leaf or table must be selected