/* 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>
*
* Make ranges of device files quickly.
* known bugs: can't deal with alpha ranges
*/
+//config:config MAKEDEVS
+//config: bool "makedevs (9.3 kb)"
+//config: default y
+//config: help
+//config: 'makedevs' is a utility used to create a batch of devices with
+//config: one command.
+//config:
+//config: There are two choices for command line behaviour, the interface
+//config: as used by LEAF/Linux Router Project, or a device table file.
+//config:
+//config: 'leaf' is traditionally what busybox follows, it allows multiple
+//config: devices of a particluar type to be created per command.
+//config: e.g. /dev/hda[0-9]
+//config: Device properties are passed as command line arguments.
+//config:
+//config: 'table' reads device properties from a file or stdin, allowing
+//config: a batch of unrelated devices to be made with one command.
+//config: User/group names are allowed as an alternative to uid/gid.
+//config:
+//config:choice
+//config: prompt "Choose makedevs behaviour"
+//config: depends on MAKEDEVS
+//config: default FEATURE_MAKEDEVS_TABLE
+//config:
+//config:config FEATURE_MAKEDEVS_LEAF
+//config: bool "leaf"
+//config:
+//config:config FEATURE_MAKEDEVS_TABLE
+//config: bool "table"
+//config:
+//config:endchoice
+
+//applet:IF_MAKEDEVS(APPLET(makedevs, BB_DIR_SBIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_MAKEDEVS) += makedevs.o
+
+//usage:#if ENABLE_FEATURE_MAKEDEVS_LEAF
+//usage:#define makedevs_trivial_usage
+//usage: "NAME TYPE MAJOR MINOR FIRST LAST [s]"
+//usage:#define makedevs_full_usage "\n\n"
+//usage: "Create a range of block or character special files"
+//usage: "\n"
+//usage: "\nTYPE is:"
+//usage: "\n b Block device"
+//usage: "\n c Character device"
+//usage: "\n f FIFO, MAJOR and MINOR are ignored"
+//usage: "\n"
+//usage: "\nFIRST..LAST specify numbers appended to NAME."
+//usage: "\nIf 's' is the last argument, the base device is created as well."
+//usage: "\n"
+//usage: "\nExamples:"
+//usage: "\n makedevs /dev/ttyS c 4 66 2 63 -> ttyS2-ttyS63"
+//usage: "\n makedevs /dev/hda b 3 0 0 8 s -> hda,hda1-hda8"
+//usage:
+//usage:#define makedevs_example_usage
+//usage: "# makedevs /dev/ttyS c 4 66 2 63\n"
+//usage: "[creates ttyS2-ttyS63]\n"
+//usage: "# makedevs /dev/hda b 3 0 0 8 s\n"
+//usage: "[creates hda,hda1-hda8]\n"
+//usage:#endif
+//usage:
+//usage:#if ENABLE_FEATURE_MAKEDEVS_TABLE
+//usage:#define makedevs_trivial_usage
+//usage: "[-d device_table] rootdir"
+//usage:#define makedevs_full_usage "\n\n"
+//usage: "Create a range of special files as specified in a device table.\n"
+//usage: "Device table entries take the form of:\n"
+//usage: "<name> <type> <mode> <uid> <gid> <major> <minor> <start> <inc> <count>\n"
+//usage: "Where name is the file name, type can be one of:\n"
+//usage: " f Regular file\n"
+//usage: " d Directory\n"
+//usage: " c Character device\n"
+//usage: " b Block device\n"
+//usage: " p Fifo (named pipe)\n"
+//usage: "uid is the user id for the target file, gid is the group id for the\n"
+//usage: "target file. The rest of the entries (major, minor, etc) apply to\n"
+//usage: "to device special files. A '-' may be used for blank entries."
+//usage:
+//usage:#define makedevs_example_usage
+//usage: "For example:\n"
+//usage: "<name> <type> <mode><uid><gid><major><minor><start><inc><count>\n"
+//usage: "/dev d 755 0 0 - - - - -\n"
+//usage: "/dev/console c 666 0 0 5 1 - - -\n"
+//usage: "/dev/null c 666 0 0 1 3 0 0 -\n"
+//usage: "/dev/zero c 666 0 0 1 5 0 0 -\n"
+//usage: "/dev/hda b 640 0 0 3 0 0 0 -\n"
+//usage: "/dev/hda b 640 0 0 3 1 1 1 15\n\n"
+//usage: "Will Produce:\n"
+//usage: "/dev\n"
+//usage: "/dev/console\n"
+//usage: "/dev/null\n"
+//usage: "/dev/zero\n"
+//usage: "/dev/hda\n"
+//usage: "/dev/hda[0-15]\n"
+//usage:#endif
+
+#include "libbb.h"
+
+#if ENABLE_FEATURE_MAKEDEVS_LEAF
+/*
+makedevs NAME TYPE MAJOR MINOR FIRST LAST [s]
+TYPEs:
+b Block device
+c Character device
+f FIFO
+
+FIRST..LAST specify numbers appended to NAME.
+If 's' is the last argument, the base device is created as well.
+Examples:
+ makedevs /dev/ttyS c 4 66 2 63 -> ttyS2-ttyS63
+ makedevs /dev/hda b 3 0 0 8 s -> hda,hda1-hda8
+*/
+int makedevs_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int makedevs_main(int argc, char **argv)
{
mode_t mode;
- char *basedev, *type, *nodname, buf[255];
+ char *basedev, *type, *nodname, *buf;
int Smajor, Sminor, S, E;
- if (argc < 7 || *argv[1]=='-')
+ if (argc < 7 || argv[1][0] == '-')
bb_show_usage();
basedev = argv[1];
+ buf = xasprintf("%s%u", argv[1], (unsigned)-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;
+ Smajor = xatoi_positive(argv[3]);
+ Sminor = xatoi_positive(argv[4]);
+ S = xatoi_positive(argv[5]);
+ E = xatoi_positive(argv[6]);
+ nodname = argv[7] ? basedev : buf;
mode = 0660;
-
switch (type[0]) {
case 'c':
mode |= S_IFCHR;
}
while (S <= E) {
- int sz;
+ sprintf(buf, "%s%u", basedev, S);
- 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 mode != S_IFCHR and != S_IFBLK,
+ * third param in mknod() ignored */
+ if (mknod(nodname, mode, makedev(Smajor, Sminor)) != 0
+ && errno != EEXIST
+ ) {
+ bb_perror_msg("can't create '%s'", nodname);
+ }
- if (nodname == basedev) /* ex. /dev/hda - to /dev/hda1 ... */
+ /*if (nodname == basedev)*/ /* ex. /dev/hda - to /dev/hda1 ... */
nodname = buf;
S++;
Sminor++;
return 0;
}
-#elif defined CONFIG_FEATURE_MAKEDEVS_TABLE
+#elif ENABLE_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}
-};
+/* Licensed under GPLv2 or later, see file LICENSE in this source tree. */
-extern int makedevs_main(int argc, char **argv)
+int makedevs_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int makedevs_main(int argc UNUSED_PARAM, char **argv)
{
- FILE *table;
- int opt;
- char *rootdir = "./";
- char *line;
+ parser_t *parser;
+ char *line = (char *)"-";
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);
+ opt_complementary = "=1"; /* exactly one param */
+ getopt32(argv, "d:", &line);
+ argv += optind;
- 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);
- }
+ xchdir(*argv); /* ensure root dir exists */
umask(0);
- while ((line = bb_get_chomped_line_from_file(table))) {
+ printf("rootdir=%s\ntable=", *argv);
+ if (NOT_LONE_DASH(line)) {
+ printf("'%s'\n", line);
+ } else {
+ puts("<stdin>");
+ }
+
+ parser = config_open(line);
+ while (config_read(parser, &line, 1, 1, "# \t", PARSE_NORMAL)) {
+ int linenum;
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];
+ unsigned mode = 0755;
+ unsigned major = 0;
+ unsigned minor = 0;
+ unsigned count = 0;
+ unsigned increment = 0;
+ unsigned start = 0;
char user[41];
char group[41];
char *full_name;
+ int name_len;
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);
+ linenum = parser->lineno;
+
+ if ((1 > sscanf(line, "%*s%n %c %o %40s %40s %u %u %u %u %u",
+ &name_len, &type, &mode, user, group,
+ &major, &minor, &start, &increment, &count))
+ || ((unsigned)(major | minor | start | count | increment) > 255)
+ ) {
+ bb_error_msg("invalid line %d: '%s'", linenum, 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);
+
+ gid = (*group) ? get_ug_id(group, xgroup2gid) : getgid();
+ uid = (*user) ? get_ug_id(user, xuname2uid) : getuid();
+ line[name_len] = '\0';
+ full_name = line;
+ /* We are already in the right root dir,
+ * so make absolute paths relative */
+ if ('/' == full_name[0])
+ full_name++;
if (type == 'd') {
- bb_make_directory(full_name, mode | S_IFDIR, 0);
+ bb_make_directory(full_name, mode | S_IFDIR, FILEUTILS_RECUR);
if (chown(full_name, uid, gid) == -1) {
- bb_perror_msg("chown failed for %s", full_name);
+ chown_fail:
+ bb_perror_msg("line %d: can't chown %s", linenum, full_name);
+ ret = EXIT_FAILURE;
+ continue;
+ }
+ if (chmod(full_name, mode) < 0) {
+ chmod_fail:
+ bb_perror_msg("line %d: can't chmod %s", linenum, full_name);
+ ret = EXIT_FAILURE;
+ continue;
+ }
+ } 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;
+ continue;
}
+ if (chown(full_name, uid, gid) < 0)
+ goto chown_fail;
+ if (chmod(full_name, mode) < 0)
+ goto chmod_fail;
} else {
- dev_t rdev;
+ unsigned i;
if (type == 'p') {
mode |= S_IFIFO;
- }
- else if (type == 'c') {
+ } else if (type == 'c') {
mode |= S_IFCHR;
- }
- else if (type == 'b') {
+ } else if (type == 'b') {
mode |= S_IFBLK;
} else {
- bb_error_msg("Unsupported file type %c", type);
+ bb_error_msg("line %d: unsupported file type %c", linenum, type);
ret = EXIT_FAILURE;
- goto loop;
+ continue;
}
- 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);
+ if (count != 0)
+ count--;
+ for (i = 0; i <= count; i++) {
+ dev_t rdev;
+ char *nameN = full_name;
+ if (count != 0)
+ nameN = xasprintf("%s%u", full_name, start + i);
+ rdev = makedev(major, minor + i * increment);
+ if (mknod(nameN, mode, rdev) != 0
+ && errno != EEXIST
+ ) {
+ bb_perror_msg("line %d: can't create node %s", linenum, nameN);
ret = EXIT_FAILURE;
- }
- else if (chown(full_name, uid, gid) == -1) {
- bb_perror_msg("chown failed for %s", full_name);
+ } else if (chown(nameN, uid, gid) < 0) {
+ bb_perror_msg("line %d: can't chown %s", linenum, nameN);
+ ret = EXIT_FAILURE;
+ } else if (chmod(nameN, mode) < 0) {
+ bb_perror_msg("line %d: can't chmod %s", linenum, nameN);
ret = EXIT_FAILURE;
}
+ if (count != 0)
+ free(nameN);
}
}
-loop:
- free(line);
- free(full_name);
}
- fclose(table);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ config_close(parser);
- return 0;
+ return ret;
}
+
#else
-# error makdedevs configuration error, either leaf or table must be selected
+# error makedevs configuration error, either leaf or table must be selected
#endif
projects / oweals / busybox.git / blobdiff