Commit | Line | Data |
---|---|---|
f20a0651 BJ |
1 | static char *sccsid = "@(#)mknod.c 4.1 (Berkeley) %G%"; |
2 | main(argc, argv) | |
3 | int argc; | |
4 | char **argv; | |
5 | { | |
6 | int m, a, b; | |
7 | ||
8 | if(argc != 5) { | |
9 | printf("arg count\n"); | |
10 | goto usage; | |
11 | } | |
12 | if(*argv[2] == 'b') | |
13 | m = 060666; else | |
14 | if(*argv[2] == 'c') | |
15 | m = 020666; else | |
16 | goto usage; | |
17 | a = number(argv[3]); | |
18 | if(a < 0) | |
19 | goto usage; | |
20 | b = number(argv[4]); | |
21 | if(b < 0) | |
22 | goto usage; | |
23 | if(mknod(argv[1], m, (a<<8)|b) < 0) | |
24 | perror("mknod"); | |
25 | exit(0); | |
26 | ||
27 | usage: | |
28 | printf("usage: mknod name b/c major minor\n"); | |
29 | } | |
30 | ||
31 | number(s) | |
32 | char *s; | |
33 | { | |
34 | int n, c; | |
35 | ||
36 | n = 0; | |
37 | while(c = *s++) { | |
38 | if(c<'0' || c>'9') | |
39 | return(-1); | |
40 | n = n*10 + c-'0'; | |
41 | } | |
42 | return(n); | |
43 | } |