toybox: toys/lsmod.c annotate

annotate toys/lsmod.c @ 649:2364ace48ab1

Bugfix from Avery Pennarun: getpriority() uses a different range than nice(), so follow thenice man page and zero errno then check it if nice returns -1.

author	Rob Landley <rob@landley.net>
date	Thu, 16 Aug 2012 22:24:30 -0500
parents	6cafecf34728
children

rev	line source
485 d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	1 /* vi: set sw=4 ts=4:
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	2 *
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	3 * lsmod.c - Show the status of modules in the kernel
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	4 *
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	5 * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	6 *
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	7 * Not in SUSv4.
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	8
486 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. Rob Landley <rob@landley.net> parents: 485 diff changeset	9 USE_LSMOD(NEWTOY(lsmod, NULL, TOYFLAG_BIN))
485 d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	10
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	11 config LSMOD
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	12 bool "lsmod"
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	13 default y
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	14 help
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	15 usage: lsmod
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	16
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	17 Display the currently loaded modules, their sizes and their
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	18 dependencies.
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	19 */
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	20
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	21 #include "toys.h"
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	22
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	23 void lsmod_main(void)
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	24 {
632 6cafecf34728 Trivial cleanups. Rob Landley <rob@landley.net> parents: 487 diff changeset	25 char *modfile = "/proc/modules";
6cafecf34728 Trivial cleanups. Rob Landley <rob@landley.net> parents: 487 diff changeset	26 FILE * file = xfopen(modfile, "r");
486 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. Rob Landley <rob@landley.net> parents: 485 diff changeset	27
487 9c43d4191337 Tighten up the source code in largely cosmetic ways. Rob Landley <rob@landley.net> parents: 486 diff changeset	28 xprintf("%-23s Size Used by\n", "Module");
485 d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	29
486 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. Rob Landley <rob@landley.net> parents: 485 diff changeset	30 while (fgets(toybuf, sizeof(toybuf), file)) {
487 9c43d4191337 Tighten up the source code in largely cosmetic ways. Rob Landley <rob@landley.net> parents: 486 diff changeset	31 char name = strtok(toybuf, " "), size = strtok(NULL, " "),
9c43d4191337 Tighten up the source code in largely cosmetic ways. Rob Landley <rob@landley.net> parents: 486 diff changeset	32 refcnt = strtok(NULL, " "), users = strtok(NULL, " ");
485 d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	33
487 9c43d4191337 Tighten up the source code in largely cosmetic ways. Rob Landley <rob@landley.net> parents: 486 diff changeset	34 if(users) {
9c43d4191337 Tighten up the source code in largely cosmetic ways. Rob Landley <rob@landley.net> parents: 486 diff changeset	35 int len = strlen(users)-1;
485 d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	36 if (users[len] == ',' \|\| users[len] == '-')
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	37 users[len] = 0;
487 9c43d4191337 Tighten up the source code in largely cosmetic ways. Rob Landley <rob@landley.net> parents: 486 diff changeset	38 xprintf("%-19s %8s %s %s\n", name, size, refcnt, users);
632 6cafecf34728 Trivial cleanups. Rob Landley <rob@landley.net> parents: 487 diff changeset	39 } else perror_exit("bad %s", modfile);
485 d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	40 }
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	41 fclose(file);
d5d51fd18679 Adding lsmod Elie De Brauwer <eliedebrauwer@gmail.com> parents: diff changeset	42 }

Mercurial > hg > toybox

annotate toys/lsmod.c @ 649:2364ace48ab1