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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Format.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <unistd.h>
constexpr unsigned encoded_device(unsigned major, unsigned minor)
{
return (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
}
static int usage()
{
warnln("usage: mknod <name> <c|b|p> [<major> <minor>]");
return 1;
}
int main(int argc, char** argv)
{
if (pledge("stdio dpath", nullptr) < 0) {
perror("pledge");
return 1;
}
// FIXME: Add some kind of option for specifying the file permissions.
if (argc < 3)
return usage();
if (argv[2][0] == 'p') {
if (argc != 3)
return usage();
} else if (argc != 5) {
return usage();
}
const char* name = argv[1];
mode_t mode = 0666;
switch (argv[2][0]) {
case 'c':
case 'u':
mode |= S_IFCHR;
break;
case 'b':
mode |= S_IFBLK;
break;
case 'p':
mode |= S_IFIFO;
break;
default:
return usage();
}
int major = 0;
int minor = 0;
if (argc == 5) {
major = atoi(argv[3]);
minor = atoi(argv[4]);
}
int rc = mknod(name, mode, encoded_device(major, minor));
if (rc < 0) {
perror("mknod");
return 1;
}
return 0;
}
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