1 /* lsmod.c - Show the status of modules in the kernel
2 *
3 * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
4
5 USE_LSMOD(NEWTOY(lsmod, NULL, TOYFLAG_SBIN))
6
7 config LSMOD
8 bool "lsmod"
9 default y
10 help
11 usage: lsmod
12
13 Display the currently loaded modules, their sizes and their dependencies.
14 */
15
16 #include "toys.h"
17
lsmod_main(void)18 void lsmod_main(void)
19 {
20 char *modfile = "/proc/modules";
21 FILE * file = xfopen(modfile, "r");
22
23 xprintf("%-23s Size Used by\n", "Module");
24
25 while (fgets(toybuf, sizeof(toybuf), file)) {
26 char *name = strtok(toybuf, " "), *size = strtok(NULL, " "),
27 *refcnt = strtok(NULL, " "), *users = strtok(NULL, " ");
28
29 if(users) {
30 int len = strlen(users)-1;
31 if (users[len] == ',' || users[len] == '-') users[len] = 0;
32 xprintf("%-19s %8s %s %s\n", name, size, refcnt, users);
33 } else perror_exit("bad %s", modfile);
34 }
35 fclose(file);
36 }
37