Mercurial > hg > toybox
diff toys/lsmod.c @ 485:d5d51fd18679
Adding lsmod
author | Elie De Brauwer <eliedebrauwer@gmail.com> |
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date | Sat, 18 Feb 2012 09:44:53 +0100 |
parents | |
children | 43be4ef80ffe |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toys/lsmod.c Sat Feb 18 09:44:53 2012 +0100 @@ -0,0 +1,49 @@ +/* vi: set sw=4 ts=4: + * + * lsmod.c - Show the status of modules in the kernel + * + * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com> + * + * Not in SUSv4. + +USE_FREE(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) +{ + FILE * file = fopen("/proc/modules", "r"); + char *name, *size, *refcnt, *users; + if (!file) + perror_exit("cannot open /proc/moduls"); + + xprintf("%-24s Size Used by\n", "Module"); + + while (fgets(toybuf, sizeof(toybuf), file)) { + int len; + name = strtok(toybuf, " "); + size = strtok(NULL, " "); + refcnt = strtok(NULL, " "); + users = strtok(NULL, " "); + if(name && size && refcnt && users) { + len = strlen(users)-1; + if (users[len] == ',' || users[len] == '-') + users[len] = 0; + xprintf("%-20s %8s %s %s\n", name, size, refcnt, users); + } else { + perror_exit("unrecognized input"); + break; + } + } + fclose(file); +}