mirror of
https://github.com/sheumann/hush.git
synced 2024-11-16 18:12:41 +00:00
14f55538f0
pull http://git.buildroot.net/buildroot/commit/?id=99ead3c2ead605d6504b9abad111778dc2a93ae6 Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
270 lines
7.8 KiB
C
270 lines
7.8 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* 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
|
|
*/
|
|
|
|
//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;
|
|
int Smajor, Sminor, S, E;
|
|
|
|
if (argc < 7 || argv[1][0] == '-')
|
|
bb_show_usage();
|
|
|
|
basedev = argv[1];
|
|
buf = xasprintf("%s%u", argv[1], (unsigned)-1);
|
|
type = argv[2];
|
|
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;
|
|
break;
|
|
case 'b':
|
|
mode |= S_IFBLK;
|
|
break;
|
|
case 'f':
|
|
mode |= S_IFIFO;
|
|
break;
|
|
default:
|
|
bb_show_usage();
|
|
}
|
|
|
|
while (S <= E) {
|
|
sprintf(buf, "%s%u", basedev, S);
|
|
|
|
/* if mode != S_IFCHR and != S_IFBLK,
|
|
* third param in mknod() ignored */
|
|
if (mknod(nodname, mode, makedev(Smajor, Sminor)))
|
|
bb_perror_msg("can't create '%s'", nodname);
|
|
|
|
/*if (nodname == basedev)*/ /* ex. /dev/hda - to /dev/hda1 ... */
|
|
nodname = buf;
|
|
S++;
|
|
Sminor++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#elif ENABLE_FEATURE_MAKEDEVS_TABLE
|
|
|
|
/* Licensed under GPLv2 or later, see file LICENSE in this source tree. */
|
|
|
|
int makedevs_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int makedevs_main(int argc UNUSED_PARAM, char **argv)
|
|
{
|
|
parser_t *parser;
|
|
char *line = (char *)"-";
|
|
int ret = EXIT_SUCCESS;
|
|
|
|
opt_complementary = "=1"; /* exactly one param */
|
|
getopt32(argv, "d:", &line);
|
|
argv += optind;
|
|
|
|
xchdir(*argv); /* ensure root dir exists */
|
|
|
|
umask(0);
|
|
|
|
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 mode = 0755;
|
|
unsigned major = 0;
|
|
unsigned minor = 0;
|
|
unsigned count = 0;
|
|
unsigned increment = 0;
|
|
unsigned start = 0;
|
|
char name[41];
|
|
char user[41];
|
|
char group[41];
|
|
char *full_name = name;
|
|
uid_t uid;
|
|
gid_t gid;
|
|
|
|
linenum = parser->lineno;
|
|
|
|
if ((2 > sscanf(line, "%40s %c %o %40s %40s %u %u %u %u %u",
|
|
name, &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;
|
|
}
|
|
|
|
gid = (*group) ? get_ug_id(group, xgroup2gid) : getgid();
|
|
uid = (*user) ? get_ug_id(user, xuname2uid) : getuid();
|
|
/* We are already in the right root dir,
|
|
* so make absolute paths relative */
|
|
if ('/' == *full_name)
|
|
full_name++;
|
|
|
|
if (type == 'd') {
|
|
bb_make_directory(full_name, mode | S_IFDIR, FILEUTILS_RECUR);
|
|
if (chown(full_name, uid, gid) == -1) {
|
|
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;
|
|
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;
|
|
char *full_name_inc;
|
|
|
|
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;
|
|
continue;
|
|
}
|
|
|
|
full_name_inc = xmalloc(strlen(full_name) + sizeof(int)*3 + 2);
|
|
if (count)
|
|
count--;
|
|
for (i = start; i <= start + count; i++) {
|
|
sprintf(full_name_inc, count ? "%s%u" : "%s", full_name, i);
|
|
rdev = makedev(major, minor + (i - start) * increment);
|
|
if (mknod(full_name_inc, mode, rdev) < 0) {
|
|
bb_perror_msg("line %d: can't create node %s", linenum, full_name_inc);
|
|
ret = EXIT_FAILURE;
|
|
} else if (chown(full_name_inc, uid, gid) < 0) {
|
|
bb_perror_msg("line %d: can't chown %s", linenum, full_name_inc);
|
|
ret = EXIT_FAILURE;
|
|
} else if (chmod(full_name_inc, mode) < 0) {
|
|
bb_perror_msg("line %d: can't chmod %s", linenum, full_name_inc);
|
|
ret = EXIT_FAILURE;
|
|
}
|
|
}
|
|
free(full_name_inc);
|
|
}
|
|
}
|
|
if (ENABLE_FEATURE_CLEAN_UP)
|
|
config_close(parser);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#else
|
|
# error makedevs configuration error, either leaf or table must be selected
|
|
#endif
|