GopherProxy

	lsmod.c - ubase - suckless linux base utils
	git clone git://git.suckless.org/ubase
	Log
	Files
	Refs
	README
	LICENSE
	---
	lsmod.c (1357B)
	---
	1 /* See LICENSE file for copyright and license details. */
	2 #include <stdio.h>
	3 #include <stdlib.h>
	4 #include <string.h>
	5
	6 #include "text.h"
	7 #include "util.h"
	8
	9 static void parse_modline(char buf, char name, char *size,
	10 char refcount, char users);
	11
	12 static void
	13 usage(void)
	14 {
	15 eprintf("usage: %s\n", argv0);
	16 }
	17
	18 int
	19 main(int argc, char *argv[])
	20 {
	21 const char *modfile = "/proc/modules";
	22 FILE *fp;
	23 char *buf = NULL;
	24 char name, size, refcount, users;
	25 size_t bufsize = 0;
	26 size_t len;
	27
	28 ARGBEGIN {
	29 default:
	30 usage();
	31 } ARGEND;
	32
	33 if (argc > 0)
	34 usage();
	35
	36 fp = fopen(modfile, "r");
	37 if (!fp)
	38 eprintf("fopen %s:", modfile);
	39
	40 printf("%-23s Size Used by\n", "Module");
	41
	42 while (agetline(&buf, &bufsize, fp) != -1) {
	43 parse_modline(buf, &name, &size, &refcount, &users);
	44 if (!name \|\| !size \|\| !refcount \|\| !users)
	45 eprintf("invalid format: %s\n", modfile);
	46 len = strlen(users) - 1;
	47 if (users[len] == ',' \|\| users[len] == '-')
	48 users[len] = '\0';
	49 printf("%-20s%8s%3s %s\n", name, size, refcount,
	50 users);
	51 }
	52 if (ferror(fp))
	53 eprintf("%s: read error:", modfile);
	54 free(buf);
	55 fclose(fp);
	56 return 0;
	57 }
	58
	59 static void
	60 parse_modline(char buf, char name, char *size,
	61 char refcount, char users)
	62 {
	63 *name = strtok(buf, " ");
	64 *size = strtok(NULL, " ");
	65 *refcount = strtok(NULL, " ");
	66 *users = strtok(NULL, " ");
	67 }