1 #include <stdio.h>
2 #include <string.h>
3 #include <fcntl.h>
4 #include <unistd.h>
5 #include <malloc.h>
6 #include <errno.h>
7 #include <asm/unistd.h>
8
9 extern int delete_module(const char *, unsigned int);
10
rmmod_main(int argc,char ** argv)11 int rmmod_main(int argc, char **argv)
12 {
13 int ret, i;
14 char *modname, *dot;
15
16 /* make sure we've got an argument */
17 if (argc < 2) {
18 fprintf(stderr, "usage: rmmod <module>\n");
19 return -1;
20 }
21
22 /* if given /foo/bar/blah.ko, make a weak attempt
23 * to convert to "blah", just for convenience
24 */
25 modname = strrchr(argv[1], '/');
26 if (!modname)
27 modname = argv[1];
28 else modname++;
29
30 dot = strchr(argv[1], '.');
31 if (dot)
32 *dot = '\0';
33
34 /* Replace "-" with "_". This would keep rmmod
35 * compatible with module-init-tools version of
36 * rmmod
37 */
38 for (i = 0; modname[i] != '\0'; i++) {
39 if (modname[i] == '-')
40 modname[i] = '_';
41 }
42
43 /* pass it to the kernel */
44 ret = delete_module(modname, O_NONBLOCK | O_EXCL);
45 if (ret != 0) {
46 fprintf(stderr, "rmmod: delete_module '%s' failed (errno %d)\n",
47 modname, errno);
48 return -1;
49 }
50
51 return 0;
52 }
53
54