X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=lsmod.c;h=ab4726b9e3124f516cf733bb5ce1ea6fb359ba66;hb=d8ad76cb31ff7c4b2d97cc66eafc4297f5cea7d7;hp=b0b37bdd78745e3297215f26bbbe6d1a541720ff;hpb=2ac2fae728cca8a535b29bdd2fa6899e6f4992f2;p=oweals%2Fbusybox.git

diff --git a/lsmod.c b/lsmod.c
index b0b37bdd7..ab4726b9e 100644
--- a/lsmod.c
+++ b/lsmod.c
@@ -2,7 +2,7 @@
 /*
  * Mini lsmod implementation for busybox
  *
- * Copyright (C) 1999 by Lineo, inc.
+ * Copyright (C) 1999,2000 by Lineo, inc.
  * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -21,17 +21,102 @@
  *
  */
 
-#include "internal.h"
+#include "busybox.h"
+#include <stdlib.h>
 #include <stdio.h>
+#include <stddef.h>
+#include <errno.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <ctype.h>
+#include <assert.h>
+#include <getopt.h>
+#include <sys/utsname.h>
 
 
-//#if ! defined BB_FEATURE_USE_PROCFS
-//#error Sorry, I depend on the /proc filesystem right now.
-//#endif
+
+struct module_info
+{
+	unsigned long addr;
+	unsigned long size;
+	unsigned long flags;
+	long usecount;
+};
+
+
+int query_module(const char *name, int which, void *buf, size_t bufsize,
+		 size_t *ret);
+
+/* Values for query_module's which.  */
+#define QM_MODULES	1
+#define QM_DEPS		2
+#define QM_REFS		3
+#define QM_SYMBOLS	4
+#define QM_INFO		5
+
+/* Bits of module.flags.  */
+#define NEW_MOD_RUNNING		1
+#define NEW_MOD_DELETED		2
+#define NEW_MOD_AUTOCLEAN	4
+#define NEW_MOD_VISITED		8
+#define NEW_MOD_USED_ONCE	16
+#define NEW_MOD_INITIALIZING	64
+
 
 extern int lsmod_main(int argc, char **argv)
 {
-	char *cmd[] = { "cat", "/proc/modules", "\0" };
+	struct module_info info;
+	char *module_names, *mn, *deps, *dn;
+	size_t bufsize, nmod, count, i, j;
+
+	module_names = xmalloc(bufsize = 256);
+	deps = xmalloc(bufsize);
+	if (query_module(NULL, QM_MODULES, module_names, bufsize, &nmod)) {
+		fatalError("QM_MODULES: %s\n", strerror(errno));
+	}
+
+	printf("Module                  Size  Used by\n");
+	for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) {
+		if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) {
+			if (errno == ENOENT) {
+				/* The module was removed out from underneath us. */
+				continue;
+			}
+			/* else choke */
+			fatalError("module %s: QM_INFO: %s\n", mn, strerror(errno));
+		}
+		while (query_module(mn, QM_REFS, deps, bufsize, &count)) {
+			if (errno == ENOENT) {
+				/* The module was removed out from underneath us. */
+				continue;
+			}
+			if (errno != ENOSPC) {
+				fatalError("module %s: QM_REFS: %s", mn, strerror(errno));
+			}
+			deps = xrealloc(deps, bufsize = count);
+		}
+		printf("%-20s%8lu%4ld ", mn, info.size, info.usecount);
+		if (count) printf("[");
+		for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) {
+			printf("%s%s", dn, (j==count-1)? "":" ");
+		}
+		if (count) printf("] ");
+
+		if (info.flags & NEW_MOD_DELETED)
+			printf("(deleted)");
+		else if (info.flags & NEW_MOD_INITIALIZING)
+			printf("(initializing)");
+		else if (!(info.flags & NEW_MOD_RUNNING))
+			printf("(uninitialized)");
+		else {
+			if (info.flags & NEW_MOD_AUTOCLEAN)
+				printf("(autoclean) ");
+			if (!(info.flags & NEW_MOD_USED_ONCE))
+				printf("(unused)");
+		}
+		printf("\n");
+	}
+
 
-	exit(cat_main(3, cmd));
+	return( 0);
 }