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/* vi: set sw=4 ts=4: */
/*
* Mini mknod implementation for busybox
*
* Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "internal.h"
#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
static const char mknod_usage[] = "mknod [OPTIONS] NAME TYPE MAJOR MINOR\n"
#ifndef BB_FEATURE_TRIVIAL_HELP
"\nCreate a special file (block, character, or pipe).\n\n"
"Options:\n"
"\t-m\tcreate the special file using the specified mode (default a=rw)\n\n"
"TYPEs include:\n"
"\tb:\tMake a block (buffered) device.\n"
"\tc or u:\tMake a character (un-buffered) device.\n"
"\tp:\tMake a named pipe. MAJOR and MINOR are ignored for named pipes.\n"
#endif
;
int mknod_main(int argc, char **argv)
{
char *thisarg;
mode_t mode = 0;
mode_t perm = 0666;
dev_t dev = 0;
argc--;
argv++;
/* Parse any options */
while (argc > 1) {
if (**argv != '-')
break;
thisarg = *argv;
thisarg++;
switch (*thisarg) {
case 'm':
argc--;
argv++;
parse_mode(*argv, &perm);
umask(0);
break;
default:
usage(mknod_usage);
}
argc--;
argv++;
}
if (argc != 4 && argc != 2) {
usage(mknod_usage);
}
switch (argv[1][0]) {
case 'c':
case 'u':
mode = S_IFCHR;
break;
case 'b':
mode = S_IFBLK;
break;
case 'p':
mode = S_IFIFO;
if (argc!=2) {
usage(mknod_usage);
}
break;
default:
usage(mknod_usage);
}
if (mode == S_IFCHR || mode == S_IFBLK) {
dev = (atoi(argv[2]) << 8) | atoi(argv[3]);
}
mode |= perm;
if (mknod(argv[0], mode, dev) != 0)
fatalError("%s: %s\n", argv[0], strerror(errno));
exit (TRUE);
}
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