view toys/other/lsmod.c @ 656:6df4ccc0acbe

Regularize command headers, update links to standards documents.
author Rob Landley <rob@landley.net>
date Sat, 25 Aug 2012 18:08:51 -0500
parents 2986aa63a021
children 786841fdb1e0
line wrap: on
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/* vi: set sw=4 ts=4:
 *
 * lsmod.c - Show the status of modules in the kernel
 *
 * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>

USE_LSMOD(NEWTOY(lsmod, NULL, TOYFLAG_BIN))

config LSMOD
	bool "lsmod"
	default y
	help
	  usage: lsmod

	  Display the currently loaded modules, their sizes and their
	  dependencies.
*/

#include "toys.h"

void lsmod_main(void)
{
	char *modfile = "/proc/modules";
	FILE * file = xfopen(modfile, "r");

	xprintf("%-23s Size  Used by\n", "Module");

	while (fgets(toybuf, sizeof(toybuf), file)) {
		char *name = strtok(toybuf, " "), *size = strtok(NULL, " "),
			*refcnt = strtok(NULL, " "), *users = strtok(NULL, " ");

		if(users) {
			int len = strlen(users)-1;
			if (users[len] == ',' || users[len] == '-')
				users[len] = 0;
			xprintf("%-19s %8s  %s %s\n", name, size, refcnt, users);
		} else perror_exit("bad %s", modfile);
	}
	fclose(file);
}