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- /* mknod.c - make block or character special file
- *
- * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
- *
- * http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/mknod.html
- USE_MKNOD(NEWTOY(mknod, "<2>4m(mode):"USE_MKNOD_Z("Z:"), TOYFLAG_BIN|TOYFLAG_UMASK))
- config MKNOD
- bool "mknod"
- default y
- help
- usage: mknod [-m MODE] NAME TYPE [MAJOR MINOR]
- Create a special file NAME with a given type. TYPE is b for block device,
- c or u for character device, p for named pipe (which ignores MAJOR/MINOR).
- -m Mode (file permissions) of new device, in octal or u+x format
- config MKNOD_Z
- bool
- default y
- depends on MKNOD && !TOYBOX_LSM_NONE
- help
- usage: mknod [-Z CONTEXT] ...
- -Z Set security context to created file
- */
- #define FOR_mknod
- #include "toys.h"
- GLOBALS(
- char *Z, *m;
- )
- void mknod_main(void)
- {
- mode_t modes[] = {S_IFIFO, S_IFCHR, S_IFCHR, S_IFBLK};
- int major=0, minor=0, type;
- int mode = TT.m ? string_to_mode(TT.m, 0777) : 0660;
- type = stridx("pcub", *toys.optargs[1]);
- if (type == -1) perror_exit("bad type '%c'", *toys.optargs[1]);
- if (type) {
- if (toys.optc != 4) perror_exit("need major/minor");
- major = atoi(toys.optargs[2]);
- minor = atoi(toys.optargs[3]);
- }
- if (toys.optflags & FLAG_Z)
- if (-1 == lsm_set_create(TT.Z))
- perror_exit("-Z '%s' failed", TT.Z);
- if (mknod(*toys.optargs, mode|modes[type], dev_makedev(major, minor)))
- perror_exit_raw(*toys.optargs);
- }
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