2 * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License version 2.1
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
18 #include <sys/types.h>
31 static char **patterns;
32 static int n_patterns;
33 static char buf[PATH_MAX];
34 static char buf2[PATH_MAX];
35 static unsigned int mode = 0600;
37 static bool find_pattern(const char *name)
41 for (i = 0; i < n_patterns; i++)
42 if (!fnmatch(patterns[i], name, 0))
48 static void make_dev(const char *path, bool block, int major, int minor)
50 unsigned int oldumask = umask(0);
51 unsigned int _mode = mode | (block ? S_IFBLK : S_IFCHR);
53 DEBUG(2, "Creating %s device %s(%d,%d)\n",
54 block ? "block" : "character",
57 mknod(path, _mode, makedev(major, minor));
61 static void find_devs(bool block)
63 char *path = block ? "/sys/dev/block" : "/sys/dev/char";
71 path = buf2 + sprintf(buf2, "%s/", path);
72 while ((dp = readdir(dir)) != NULL) {
74 int major = 0, minor = 0;
77 if (dp->d_type != DT_LNK)
80 if (sscanf(dp->d_name, "%d:%d", &major, &minor) != 2)
83 strcpy(path, dp->d_name);
84 len = readlink(buf2, buf, sizeof(buf));
89 if (!find_pattern(buf))
92 c = strrchr(buf, '/');
97 make_dev(c, block, major, minor);
102 static char *add_pattern(const char *name)
104 char *str = malloc(strlen(name) + 2);
107 strcpy(str + 1, name);
111 int mkdev(const char *name, int _mode)
118 pattern = add_pattern(name);