static int
parse_device(dev_t *pdev, struct archive *a, char *val)
{
#define MAX_PACK_ARGS 3
unsigned long numbers[MAX_PACK_ARGS];
char *p, *dev;
int argc;
pack_t *pack;
dev_t result;
const char *error = NULL;
memset(pdev, 0, sizeof(*pdev));
if ((dev = strchr(val, ',')) != NULL) {
/*
* Device's major/minor are given in a specified format.
* Decode and pack it accordingly.
*/
*dev++ = '\0';
if ((pack = pack_find(val)) == NULL) {
archive_set_error(a, ARCHIVE_ERRNO_FILE_FORMAT,
"Unknown format `%s'", val);
return ARCHIVE_WARN;
}
argc = 0;
while ((p = la_strsep(&dev, ",")) != NULL) {
if (*p == '\0') {
archive_set_error(a, ARCHIVE_ERRNO_FILE_FORMAT,
"Missing number");
return ARCHIVE_WARN;
}
if (argc >= MAX_PACK_ARGS) {
archive_set_error(a, ARCHIVE_ERRNO_FILE_FORMAT,
"Too many arguments");
return ARCHIVE_WARN;
}
numbers[argc++] = (unsigned long)mtree_atol(&p);
}
if (argc < 2) {
archive_set_error(a, ARCHIVE_ERRNO_FILE_FORMAT,
"Not enough arguments");
return ARCHIVE_WARN;
}
result = (*pack)(argc, numbers, &error);
if (error != NULL) {
archive_set_error(a, ARCHIVE_ERRNO_FILE_FORMAT,
"%s", error);
return ARCHIVE_WARN;
}
} else {
/* file system raw value. */
result = (dev_t)mtree_atol(&val);
}
*pdev = result;
return ARCHIVE_OK;
#undef MAX_PACK_ARGS
}
static dev_t
parsedev(char *arg)
{
#define MAX_PACK_ARGS 3
u_long numbers[MAX_PACK_ARGS];
char *p, *ep, *dev;
int argc;
pack_t *pack;
dev_t result;
const char *error = NULL;
if ((dev = strchr(arg, ',')) != NULL) {
*dev++='\0';
if ((pack = pack_find(arg)) == NULL)
mtree_err("unknown format `%s'", arg);
argc = 0;
while ((p = strsep(&dev, ",")) != NULL) {
if (*p == '\0')
mtree_err("missing number");
numbers[argc++] = strtoul(p, &ep, 0);
if (*ep != '\0')
mtree_err("invalid number `%s'",
p);
if (argc > MAX_PACK_ARGS)
mtree_err("too many arguments");
}
if (argc < 2)
mtree_err("not enough arguments");
result = (*pack)(argc, numbers, &error);
if (error != NULL)
mtree_err("%s", error);
} else {
result = (dev_t)strtoul(arg, &ep, 0);
if (*ep != '\0')
mtree_err("invalid device `%s'", arg);
}
return (result);
}
int
main(int argc, char **argv)
{
char *name, *p;
mode_t mode;
dev_t dev;
pack_t *pack;
u_long numbers[MAXARGS];
int n, ch, fifo, hasformat;
int r_flag = 0; /* force: delete existing entry */
#ifdef KERN_DRIVERS
int l_flag = 0; /* list device names and numbers */
int major;
#endif
void *modes = 0;
uid_t uid = -1;
gid_t gid = -1;
int rval;
dev = 0;
fifo = hasformat = 0;
pack = pack_native;
#ifdef KERN_DRIVERS
while ((ch = getopt(argc, argv, "lrRF:g:m:u:")) != -1) {
#else
while ((ch = getopt(argc, argv, "rRF:g:m:u:")) != -1) {
#endif
switch (ch) {
#ifdef KERN_DRIVERS
case 'l':
l_flag = 1;
break;
#endif
case 'r':
r_flag = 1;
break;
case 'R':
r_flag = 2;
break;
case 'F':
pack = pack_find(optarg);
if (pack == NULL)
errx(1, "invalid format: %s", optarg);
hasformat++;
break;
case 'g':
if (optarg[0] == '#') {
gid = strtol(optarg + 1, &p, 10);
if (*p == 0)
break;
}
if (gid_name(optarg, &gid) == 0)
break;
gid = strtol(optarg, &p, 10);
if (*p == 0)
break;
errx(1, "%s: invalid group name", optarg);
case 'm':
modes = setmode(optarg);
if (modes == NULL)
err(1, "Cannot set file mode `%s'", optarg);
break;
case 'u':
if (optarg[0] == '#') {
uid = strtol(optarg + 1, &p, 10);
if (*p == 0)
break;
}
if (uid_from_user(optarg, &uid) == 0)
break;
uid = strtol(optarg, &p, 10);
if (*p == 0)
break;
errx(1, "%s: invalid user name", optarg);
default:
case '?':
usage();
}
}
argc -= optind;
argv += optind;
#ifdef KERN_DRIVERS
if (l_flag) {
print_device_info(argv);
return 0;
}
#endif
if (argc < 2 || argc > 10)
usage();
name = *argv;
argc--;
argv++;
umask(mode = umask(0));
mode = (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) & ~mode;
if (argv[0][1] != '\0')
goto badtype;
switch (*argv[0]) {
case 'c':
mode |= S_IFCHR;
break;
case 'b':
mode |= S_IFBLK;
break;
case 'p':
if (hasformat)
errx(1, "format is meaningless for fifos");
mode |= S_IFIFO;
fifo = 1;
break;
default:
badtype:
errx(1, "node type must be 'b', 'c' or 'p'.");
}
argc--;
argv++;
if (fifo) {
if (argc != 0)
usage();
} else {
if (argc < 1 || argc > MAXARGS)
usage();
}
for (n = 0; n < argc; n++) {
errno = 0;
numbers[n] = strtoul(argv[n], &p, 0);
if (*p == 0 && errno == 0)
continue;
#ifdef KERN_DRIVERS
if (argc == 2 && n == 0) {
major = major_from_name(argv[0], mode);
if (major != -1) {
numbers[0] = major;
continue;
}
if (!isdigit(*(unsigned char *)argv[0]))
errx(1, "unknown driver: %s", argv[0]);
}
#endif
errx(1, "invalid number: %s", argv[n]);
}
switch (argc) {
case 0:
dev = 0;
break;
case 1:
dev = numbers[0];
break;
default:
dev = callPack(pack, argc, numbers);
break;
}
if (modes != NULL)
mode = getmode(modes, mode);
umask(0);
rval = fifo ? mkfifo(name, mode) : mknod(name, mode, dev);
if (rval < 0 && errno == EEXIST && r_flag) {
struct stat sb;
if (lstat(name, &sb) != 0 || (!fifo && sb.st_rdev != dev))
sb.st_mode = 0;
if ((sb.st_mode & S_IFMT) == (mode & S_IFMT)) {
if (r_flag == 1)
/* Ignore permissions and user/group */
return 0;
if (sb.st_mode != mode)
rval = chmod(name, mode);
else
rval = 0;
} else {
unlink(name);
rval = fifo ? mkfifo(name, mode)
: mknod(name, mode, dev);
}
}
if (rval < 0)
err(1, "%s", name);
if ((uid != (uid_t)-1 || gid != (uid_t)-1) && chown(name, uid, gid) == -1)
/* XXX Should we unlink the files here? */
warn("%s: uid/gid not changed", name);
return 0;
}
static void
usage(void)
{
const char *progname = getprogname();
(void)fprintf(stderr,
"usage: %s [-rR] [-F format] [-m mode] [-u user] [-g group]\n",
progname);
(void)fprintf(stderr,
#ifdef KERN_DRIVERS
" [ name [b | c] [major | driver] minor\n"
#else
" [ name [b | c] major minor\n"
#endif
" | name [b | c] major unit subunit\n"
" | name [b | c] number\n"
" | name p ]\n");
#ifdef KERN_DRIVERS
(void)fprintf(stderr, " %s -l [driver] ...\n", progname);
#endif
exit(1);
}
static int
gid_name(const char *name, gid_t *gid)
{
struct group *g;
g = getgrnam(name);
if (!g)
return -1;
*gid = g->gr_gid;
return 0;
}
static dev_t
callPack(pack_t *f, int n, u_long *numbers)
{
dev_t d;
const char *error = NULL;
d = (*f)(n, numbers, &error);
if (error != NULL)
errx(1, "%s", error);
return d;
}
