diff options
Diffstat (limited to 'coreutils/mknod.c')
-rw-r--r-- | coreutils/mknod.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/coreutils/mknod.c b/coreutils/mknod.c new file mode 100644 index 0000000..0c69494 --- /dev/null +++ b/coreutils/mknod.c @@ -0,0 +1,57 @@ +/* vi: set sw=4 ts=4: */ +/* + * mknod implementation for busybox + * + * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org> + * + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. + */ + +/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */ + +#include <sys/sysmacros.h> // For makedev + +#include "libbb.h" +#include "libcoreutils/coreutils.h" + +static const char modes_chars[] ALIGN1 = { 'p', 'c', 'u', 'b', 0, 1, 1, 2 }; +static const mode_t modes_cubp[] = { S_IFIFO, S_IFCHR, S_IFBLK }; + +int mknod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int mknod_main(int argc, char **argv) +{ + mode_t mode; + dev_t dev; + const char *name; + + mode = getopt_mk_fifo_nod(argv); + argv += optind; + argc -= optind; + + if (argc >= 2) { + name = strchr(modes_chars, argv[1][0]); + if (name != NULL) { + mode |= modes_cubp[(int)(name[4])]; + + dev = 0; + if (*name != 'p') { + argc -= 2; + if (argc == 2) { + /* Autodetect what the system supports; these macros should + * optimize out to two constants. */ + dev = makedev(xatoul_range(argv[2], 0, major(UINT_MAX)), + xatoul_range(argv[3], 0, minor(UINT_MAX))); + } + } + + if (argc == 2) { + name = *argv; + if (mknod(name, mode, dev) == 0) { + return EXIT_SUCCESS; + } + bb_simple_perror_msg_and_die(name); + } + } + } + bb_show_usage(); +} |