mirror of
https://github.com/sheumann/hush.git
synced 2024-12-22 14:30:31 +00:00
104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
/* 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));
|
|
return (TRUE);
|
|
}
|
|
|