1*cf5a6c84SAndroid Build Coastguard Worker /* mknod.c - make block or character special file
2*cf5a6c84SAndroid Build Coastguard Worker *
3*cf5a6c84SAndroid Build Coastguard Worker * Copyright 2012 Elie De Brauwer <[email protected]>
4*cf5a6c84SAndroid Build Coastguard Worker *
5*cf5a6c84SAndroid Build Coastguard Worker * http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/mknod.html
6*cf5a6c84SAndroid Build Coastguard Worker
7*cf5a6c84SAndroid Build Coastguard Worker USE_MKNOD(NEWTOY(mknod, "<2>4m(mode):"USE_MKNOD_Z("Z:"), TOYFLAG_BIN|TOYFLAG_UMASK))
8*cf5a6c84SAndroid Build Coastguard Worker
9*cf5a6c84SAndroid Build Coastguard Worker config MKNOD
10*cf5a6c84SAndroid Build Coastguard Worker bool "mknod"
11*cf5a6c84SAndroid Build Coastguard Worker default y
12*cf5a6c84SAndroid Build Coastguard Worker help
13*cf5a6c84SAndroid Build Coastguard Worker usage: mknod [-m MODE] NAME TYPE [MAJOR MINOR]
14*cf5a6c84SAndroid Build Coastguard Worker
15*cf5a6c84SAndroid Build Coastguard Worker Create a special file NAME with a given type. TYPE is b for block device,
16*cf5a6c84SAndroid Build Coastguard Worker c or u for character device, p for named pipe (which ignores MAJOR/MINOR).
17*cf5a6c84SAndroid Build Coastguard Worker
18*cf5a6c84SAndroid Build Coastguard Worker -m Mode (file permissions) of new device, in octal or u+x format
19*cf5a6c84SAndroid Build Coastguard Worker
20*cf5a6c84SAndroid Build Coastguard Worker config MKNOD_Z
21*cf5a6c84SAndroid Build Coastguard Worker bool
22*cf5a6c84SAndroid Build Coastguard Worker default y
23*cf5a6c84SAndroid Build Coastguard Worker depends on MKNOD && !TOYBOX_LSM_NONE
24*cf5a6c84SAndroid Build Coastguard Worker help
25*cf5a6c84SAndroid Build Coastguard Worker usage: mknod [-Z CONTEXT] ...
26*cf5a6c84SAndroid Build Coastguard Worker
27*cf5a6c84SAndroid Build Coastguard Worker -Z Set security context to created file
28*cf5a6c84SAndroid Build Coastguard Worker */
29*cf5a6c84SAndroid Build Coastguard Worker
30*cf5a6c84SAndroid Build Coastguard Worker #define FOR_mknod
31*cf5a6c84SAndroid Build Coastguard Worker #include "toys.h"
32*cf5a6c84SAndroid Build Coastguard Worker
33*cf5a6c84SAndroid Build Coastguard Worker GLOBALS(
34*cf5a6c84SAndroid Build Coastguard Worker char *Z, *m;
35*cf5a6c84SAndroid Build Coastguard Worker )
36*cf5a6c84SAndroid Build Coastguard Worker
mknod_main(void)37*cf5a6c84SAndroid Build Coastguard Worker void mknod_main(void)
38*cf5a6c84SAndroid Build Coastguard Worker {
39*cf5a6c84SAndroid Build Coastguard Worker mode_t modes[] = {S_IFIFO, S_IFCHR, S_IFCHR, S_IFBLK};
40*cf5a6c84SAndroid Build Coastguard Worker int major = 0, minor = 0, type;
41*cf5a6c84SAndroid Build Coastguard Worker int mode = TT.m ? string_to_mode(TT.m, 0777) : 0660;
42*cf5a6c84SAndroid Build Coastguard Worker
43*cf5a6c84SAndroid Build Coastguard Worker type = stridx("pcub", *toys.optargs[1]);
44*cf5a6c84SAndroid Build Coastguard Worker if (type == -1) perror_exit("bad type '%c'", *toys.optargs[1]);
45*cf5a6c84SAndroid Build Coastguard Worker if (type) {
46*cf5a6c84SAndroid Build Coastguard Worker if (toys.optc != 4) perror_exit("need major/minor");
47*cf5a6c84SAndroid Build Coastguard Worker
48*cf5a6c84SAndroid Build Coastguard Worker major = atoi(toys.optargs[2]);
49*cf5a6c84SAndroid Build Coastguard Worker minor = atoi(toys.optargs[3]);
50*cf5a6c84SAndroid Build Coastguard Worker }
51*cf5a6c84SAndroid Build Coastguard Worker
52*cf5a6c84SAndroid Build Coastguard Worker if (FLAG(Z) && lsm_set_create(TT.Z)==-1)
53*cf5a6c84SAndroid Build Coastguard Worker perror_exit("-Z '%s' failed", TT.Z);
54*cf5a6c84SAndroid Build Coastguard Worker if (mknod(*toys.optargs, mode|modes[type], dev_makedev(major, minor)))
55*cf5a6c84SAndroid Build Coastguard Worker perror_exit_raw(*toys.optargs);
56*cf5a6c84SAndroid Build Coastguard Worker }
57