1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/* vi: set sw=4 ts=4: */
/*
* public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
*
* makedevs
* Make ranges of device files quickly.
* known bugs: can't deal with alpha ranges
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include "busybox.h"
int makedevs_main(int argc, char **argv)
{
mode_t mode;
char *basedev, *type, *nodname, buf[255];
int major, Sminor, S, E;
if (argc < 7 || *argv[1]=='-')
bb_show_usage();
basedev = argv[1];
type = argv[2];
major = atoi(argv[3]) << 8; /* correcting param to mknod() */
Sminor = atoi(argv[4]);
S = atoi(argv[5]);
E = atoi(argv[6]);
nodname = argc == 8 ? basedev : buf;
mode = 0660;
switch (type[0]) {
case 'c':
mode |= S_IFCHR;
break;
case 'b':
mode |= S_IFBLK;
break;
case 'f':
mode |= S_IFIFO;
break;
default:
bb_show_usage();
}
while (S <= E) {
int sz;
sz = snprintf(buf, sizeof(buf), "%s%d", basedev, S);
if(sz<0 || sz>=sizeof(buf)) /* libc different */
bb_error_msg_and_die("%s too large", basedev);
/* if mode != S_IFCHR and != S_IFBLK third param in mknod() ignored */
if (mknod(nodname, mode, major | Sminor))
bb_error_msg("Failed to create: %s", nodname);
if (nodname == basedev) /* ex. /dev/hda - to /dev/hda1 ... */
nodname = buf;
S++;
Sminor++;
}
return 0;
}
/*
And this is what this program replaces. The shell is too slow!
makedev () {
local basedev=$1; local S=$2; local E=$3
local major=$4; local Sminor=$5; local type=$6
local sbase=$7
if [ ! "$sbase" = "" ]; then
mknod "$basedev" $type $major $Sminor
S=`expr $S + 1`
Sminor=`expr $Sminor + 1`
fi
while [ $S -le $E ]; do
mknod "$basedev$S" $type $major $Sminor
S=`expr $S + 1`
Sminor=`expr $Sminor + 1`
done
}
*/
|
