/* vi: set sw=4 ts=4: */
/*
* public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
- *
+ *
* makedevs
- * Make ranges of device files quickly.
+ * Make ranges of device files quickly.
* known bugs: can't deal with alpha ranges
*/
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/types.h>
#include "busybox.h"
+#ifdef CONFIG_FEATURE_MAKEDEVS_LEAF
int makedevs_main(int argc, char **argv)
{
- dev_t dev = 0;
- mode_t mode = 0;
- char *basedev, *type, devname[255], buf[255];
- int major, Sminor, S, E, sbase;
+ mode_t mode;
+ char *basedev, *type, *nodname, buf[255];
+ int Smajor, Sminor, S, E;
if (argc < 7 || *argv[1]=='-')
- show_usage();
+ bb_show_usage();
basedev = argv[1];
type = argv[2];
- major = atoi(argv[3]);
- Sminor = atoi(argv[4]);
- S = atoi(argv[5]);
- E = atoi(argv[6]);
- sbase = argc == 8 ? 1 : 0;
+ Smajor = xatoi_u(argv[3]);
+ Sminor = xatoi_u(argv[4]);
+ S = xatoi_u(argv[5]);
+ E = xatoi_u(argv[6]);
+ nodname = argc == 8 ? basedev : buf;
+
+ mode = 0660;
switch (type[0]) {
case 'c':
- mode = S_IFCHR;
+ mode |= S_IFCHR;
break;
case 'b':
- mode = S_IFBLK;
+ mode |= S_IFBLK;
break;
case 'f':
- mode = S_IFIFO;
+ mode |= S_IFIFO;
break;
default:
- show_usage();
+ bb_show_usage();
}
- mode |= 0660;
while (S <= E) {
+ int sz;
- if (type[0] != 'f')
- dev = (major << 8) | Sminor;
- safe_strncpy(devname, basedev, sizeof(devname));
-
- if (sbase == 0) {
- int len;
- len = strlen(devname);
- if (S > 10000 || len > (sizeof(devname)-6))
- error_msg_and_die("%s: number too large", buf);
- sprintf(buf, "%d", S);
- strcat(devname, buf);
- } else {
- sbase = 0;
- }
+ sz = snprintf(buf, sizeof(buf), "%s%d", basedev, S);
+ if(sz<0 || sz>=sizeof(buf)) /* libc different */
+ bb_error_msg_and_die("%s too large", basedev);
- if (mknod(devname, mode, dev))
- printf("Failed to create: %s\n", devname);
+ /* if mode != S_IFCHR and != S_IFBLK third param in mknod() ignored */
+ if (mknod(nodname, mode, makedev(Smajor, Sminor)))
+ bb_error_msg("Failed to create: %s", nodname);
+
+ if (nodname == basedev) /* ex. /dev/hda - to /dev/hda1 ... */
+ nodname = buf;
S++;
Sminor++;
}
return 0;
}
-/*
-And this is what this program replaces. The shell is too slow!
-
-makedev () {
-local basedev=$1; local S=$2; local E=$3
-local major=$4; local Sminor=$5; local type=$6
-local sbase=$7
-
- if [ ! "$sbase" = "" ]; then
- mknod "$basedev" $type $major $Sminor
- S=`expr $S + 1`
- Sminor=`expr $Sminor + 1`
- fi
-
- while [ $S -le $E ]; do
- mknod "$basedev$S" $type $major $Sminor
- S=`expr $S + 1`
- Sminor=`expr $Sminor + 1`
- done
+#elif defined CONFIG_FEATURE_MAKEDEVS_TABLE
+
+/* Licensed under the GPL v2 or later, see the file LICENSE in this tarball. */
+
+int makedevs_main(int argc, char **argv)
+{
+ FILE *table = stdin;
+ char *rootdir = NULL;
+ char *line = NULL;
+ int linenum = 0;
+ int ret = EXIT_SUCCESS;
+
+ getopt32(argc, argv, "d:", &line);
+ if (line)
+ table = xfopen(line, "r");
+
+ if (optind >= argc || (rootdir=argv[optind])==NULL) {
+ bb_error_msg_and_die("root directory not specified");
+ }
+
+ xchdir(rootdir);
+
+ umask(0);
+
+ printf("rootdir=%s\n", rootdir);
+ if (line) {
+ printf("table='%s'\n", line);
+ } else {
+ printf("table=<stdin>\n");
+ }
+
+ while ((line = bb_get_chomped_line_from_file(table))) {
+ char type;
+ unsigned int mode = 0755;
+ unsigned int major = 0;
+ unsigned int minor = 0;
+ unsigned int count = 0;
+ unsigned int increment = 0;
+ unsigned int start = 0;
+ char name[41];
+ char user[41];
+ char group[41];
+ char *full_name;
+ uid_t uid;
+ gid_t gid;
+
+ linenum++;
+
+ if ((2 > sscanf(line, "%40s %c %o %40s %40s %u %u %u %u %u", name,
+ &type, &mode, user, group, &major,
+ &minor, &start, &increment, &count)) ||
+ ((major | minor | start | count | increment) > 255))
+ {
+ if (*line=='\0' || *line=='#' || isspace(*line))
+ continue;
+ bb_error_msg("line %d invalid: '%s'", linenum, line);
+ ret = EXIT_FAILURE;
+ continue;
+ }
+ if (name[0] == '#') {
+ continue;
+ }
+
+ gid = (*group) ? get_ug_id(group, bb_xgetgrnam) : getgid();
+ uid = (*user) ? get_ug_id(user, bb_xgetpwnam) : getuid();
+ full_name = concat_path_file(rootdir, name);
+
+ if (type == 'd') {
+ bb_make_directory(full_name, mode | S_IFDIR, FILEUTILS_RECUR);
+ if (chown(full_name, uid, gid) == -1) {
+ bb_perror_msg("line %d: chown failed for %s", linenum, full_name);
+ ret = EXIT_FAILURE;
+ goto loop;
+ }
+ if ((mode != -1) && (chmod(full_name, mode) < 0)){
+ bb_perror_msg("line %d: chmod failed for %s", linenum, full_name);
+ ret = EXIT_FAILURE;
+ goto loop;
+ }
+ } else if (type == 'f') {
+ struct stat st;
+ if ((stat(full_name, &st) < 0 || !S_ISREG(st.st_mode))) {
+ bb_perror_msg("line %d: regular file '%s' does not exist", linenum, full_name);
+ ret = EXIT_FAILURE;
+ goto loop;
+ }
+ if (chown(full_name, uid, gid) == -1) {
+ bb_perror_msg("line %d: chown failed for %s", linenum, full_name);
+ ret = EXIT_FAILURE;
+ goto loop;
+ }
+ if ((mode != -1) && (chmod(full_name, mode) < 0)){
+ bb_perror_msg("line %d: chmod failed for %s", linenum, full_name);
+ ret = EXIT_FAILURE;
+ goto loop;
+ }
+ } else
+ {
+ dev_t rdev;
+
+ if (type == 'p') {
+ mode |= S_IFIFO;
+ }
+ else if (type == 'c') {
+ mode |= S_IFCHR;
+ }
+ else if (type == 'b') {
+ mode |= S_IFBLK;
+ } else {
+ bb_error_msg("line %d: unsupported file type %c", linenum, type);
+ ret = EXIT_FAILURE;
+ goto loop;
+ }
+
+ if (count > 0) {
+ int i;
+ char *full_name_inc;
+
+ full_name_inc = xmalloc(strlen(full_name) + 4);
+ for (i = start; i < count; i++) {
+ sprintf(full_name_inc, "%s%d", full_name, i);
+ rdev = (major << 8) + minor + (i * increment - start);
+ if (mknod(full_name_inc, mode, rdev) == -1) {
+ bb_perror_msg("line %d: could not create node %s", linenum, full_name_inc);
+ ret = EXIT_FAILURE;
+ }
+ else if (chown(full_name_inc, uid, gid) == -1) {
+ bb_perror_msg("line %d: chown failed for %s", linenum, full_name_inc);
+ ret = EXIT_FAILURE;
+ }
+ if ((mode != -1) && (chmod(full_name_inc, mode) < 0)){
+ bb_perror_msg("line %d: chmod failed for %s", linenum, full_name_inc);
+ ret = EXIT_FAILURE;
+ }
+ }
+ free(full_name_inc);
+ } else {
+ rdev = (major << 8) + minor;
+ if (mknod(full_name, mode, rdev) == -1) {
+ bb_perror_msg("line %d: could not create node %s", linenum, full_name);
+ ret = EXIT_FAILURE;
+ }
+ else if (chown(full_name, uid, gid) == -1) {
+ bb_perror_msg("line %d: chown failed for %s", linenum, full_name);
+ ret = EXIT_FAILURE;
+ }
+ if ((mode != -1) && (chmod(full_name, mode) < 0)){
+ bb_perror_msg("line %d: chmod failed for %s", linenum, full_name);
+ ret = EXIT_FAILURE;
+ }
+ }
+ }
+loop:
+ free(line);
+ free(full_name);
+ }
+ fclose(table);
+
+ return ret;
}
-*/
+
+#else
+# error makedevs configuration error, either leaf or table must be selected
+#endif
projects / oweals / busybox.git / blobdiff