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annotate toys/lsmod.c @ 487:9c43d4191337

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Tighten up the source code in largely cosmetic ways.
author Rob Landley <rob@landley.net>
date Mon, 20 Feb 2012 23:15:32 -0600
parents 43be4ef80ffe
children 6cafecf34728
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Elie De Brauwer <eliedebrauwer@gmail.com>
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1 /* vi: set sw=4 ts=4:
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2 *
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3 * lsmod.c - Show the status of modules in the kernel
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4 *
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5 * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
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6 *
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7 * Not in SUSv4.
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8
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43be4ef80ffe Minor cleanups: lsmod should USE_LSMOD() instead of USE_FREE(), use consistent tab/space idents, and doesn't need a break after a function that exits.
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9 USE_LSMOD(NEWTOY(lsmod, NULL, TOYFLAG_BIN))
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10
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11 config LSMOD
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12 bool "lsmod"
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13 default y
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14 help
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15 usage: lsmod
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16
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17 Display the currently loaded modules, their sizes and their
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18 dependencies.
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19 */
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20
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21 #include "toys.h"
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22
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23 void lsmod_main(void)
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24 {
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25 FILE * file = xfopen("/proc/modules", "r");
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26
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27 xprintf("%-23s Size Used by\n", "Module");
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28
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29 while (fgets(toybuf, sizeof(toybuf), file)) {
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30 char *name = strtok(toybuf, " "), *size = strtok(NULL, " "),
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31 *refcnt = strtok(NULL, " "), *users = strtok(NULL, " ");
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32
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33 if(users) {
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34 int len = strlen(users)-1;
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35 if (users[len] == ',' || users[len] == '-')
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36 users[len] = 0;
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37 xprintf("%-19s %8s %s %s\n", name, size, refcnt, users);
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38 } else perror_exit("unrecognized input");
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39 }
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40 fclose(file);
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41 }