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/* vi: set sw=4 ts=4: */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <getopt.h>
#include <time.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/sysmacros.h> /* major() and minor() */
#include "busybox.h"
#ifdef CONFIG_FEATURE_MAKEDEVS_LEAF
/*
* public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
*
* makedevs
* Make ranges of device files quickly.
* known bugs: can't deal with alpha ranges
*/
int makedevs_main(int argc, char **argv)
{
mode_t mode;
char *basedev, *type, *nodname, buf[255];
int Smajor, Sminor, S, E;
if (argc < 7 || *argv[1]=='-')
bb_show_usage();
basedev = argv[1];
type = argv[2];
Smajor = atoi(argv[3]);
Sminor = atoi(argv[4]);
S = atoi(argv[5]);
E = atoi(argv[6]);
nodname = argc == 8 ? basedev : buf;
mode = 0660;
switch (type[0]) {
case 'c':
mode |= S_IFCHR;
break;
case 'b':
mode |= S_IFBLK;
break;
case 'f':
mode |= S_IFIFO;
break;
default:
bb_show_usage();
}
while (S <= E) {
int sz;
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 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;
}
#elif defined CONFIG_FEATURE_MAKEDEVS_TABLE
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
static const struct option makedevs_long_options[] = {
{"root", 1, NULL, 'r'},
{0, 0, 0, 0}
};
extern int makedevs_main(int argc, char **argv)
{
FILE *table;
int opt;
char *rootdir = "./";
char *line;
int ret = EXIT_SUCCESS;
bb_opt_complementaly = "d~r";
bb_applet_long_options = makedevs_long_options;
opt = bb_getopt_ulflags(argc, argv, "d:r:", &rootdir, &rootdir);
if (optind + 1 == argc) {
table = bb_xfopen(argv[optind], "r");
} else {
table = stdin;
}
if (chdir(rootdir) == -1) {
bb_perror_msg_and_die("Couldnt chdor to %s", rootdir);
}
umask(0);
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;
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)) {
bb_error_msg("Ignoring invalid line\n%s\n", line);
ret = EXIT_FAILURE;
continue;
}
if (name[0] == '#') {
continue;
}
if (group) {
gid = get_ug_id(group, my_getgrnam);
} else {
gid = getgid();
}
if (user) {
uid = get_ug_id(user, my_getpwnam);
} else {
uid = getuid();
}
full_name = concat_path_file(rootdir, name);
if (type == 'd') {
bb_make_directory(full_name, mode | S_IFDIR, 0);
if (chown(full_name, uid, gid) == -1) {
bb_perror_msg("chown failed for %s", 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("Unsupported file type %c", 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("Couldnt create node %s", full_name_inc);
ret = EXIT_FAILURE;
}
else if (chown(full_name_inc, uid, gid) == -1) {
bb_perror_msg("chown failed for %s", 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("Couldnt create node %s", full_name);
ret = EXIT_FAILURE;
}
else if (chown(full_name, uid, gid) == -1) {
bb_perror_msg("chown failed for %s", full_name);
ret = EXIT_FAILURE;
}
}
}
loop:
free(line);
free(full_name);
}
fclose(table);
return 0;
}
#else
# error makdedevs configuration error, either leaf or table must be selected
#endif
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