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author | Rob Landley <rob@landley.net> | 2012-08-25 14:25:22 -0500 |
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committer | Rob Landley <rob@landley.net> | 2012-08-25 14:25:22 -0500 |
commit | 3a9241add947cb6d24b5de7a8927517426a78795 (patch) | |
tree | d122ab6570439cd6b17c7d73ed8d4e085e0b8a95 /toys/lsb/mknod.c | |
parent | 689f095bc976417bf50810fe59a3b3ac32b21105 (diff) | |
download | toybox-3a9241add947cb6d24b5de7a8927517426a78795.tar.gz |
Move commands into "posix", "lsb", and "other" menus/directories.
Diffstat (limited to 'toys/lsb/mknod.c')
-rw-r--r-- | toys/lsb/mknod.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/toys/lsb/mknod.c b/toys/lsb/mknod.c new file mode 100644 index 00000000..fb727bc3 --- /dev/null +++ b/toys/lsb/mknod.c @@ -0,0 +1,51 @@ +/* vi: set sw=4 ts=4: + * + * mknod.c - make block or character special file + * + * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com> + * + * Not in SUSv3. + +USE_MKNOD(NEWTOY(mknod, "<2>4", TOYFLAG_BIN)) + +config MKNOD + bool "mknod" + default y + help + usage: mknod NAME TYPE [MAJOR MINOR] + + Create a special file NAME with a given type, possible types are + b create a block device with the given MAJOR/MINOR + c or u create a character device with the given MAJOR/MINOR + p create a named pipe ignoring MAJOR/MINOR +*/ + +#include "toys.h" + +static const char modes_char[] = {'p', 'c', 'u', 'b'}; +static const mode_t modes[] = {S_IFIFO, S_IFCHR, S_IFCHR, S_IFBLK}; + +void mknod_main(void) +{ + int major=0, minor=0, type; + char * tmp; + int mode = 0660; + + tmp = strchr(modes_char, toys.optargs[1][0]); + if (!tmp) + perror_exit("unknown special device type %c", toys.optargs[1][0]); + + type = modes[tmp-modes_char]; + + if (type == S_IFCHR || type == S_IFBLK) { + if (toys.optc != 4) + perror_exit("creating a block/char device requires major/minor"); + + major = atoi(toys.optargs[2]); + minor = atoi(toys.optargs[3]); + } + + if (mknod(toys.optargs[0], mode | type, makedev(major, minor))) + perror_exit("mknod %s failed", toys.optargs[0]); + +} |