X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=lsmod.c;h=c97d199a69e40d262cd86011ac05cc9b52998dc8;hb=5165fbed639916e0fde15a827241b21981be7934;hp=ab4726b9e3124f516cf733bb5ce1ea6fb359ba66;hpb=3570a34de46b1f7dedd16999bb1687e2d6b55d40;p=oweals%2Fbusybox.git

diff --git a/lsmod.c b/lsmod.c
index ab4726b9e..c97d199a6 100644
--- a/lsmod.c
+++ b/lsmod.c
@@ -2,9 +2,13 @@
 /*
  * Mini lsmod implementation for busybox
  *
- * Copyright (C) 1999,2000 by Lineo, inc.
+ * Copyright (C) 1999,2000,2001 by Lineo, inc.
  * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
  *
+ * Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and
+ * Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels
+ * (which lack the query_module() interface).
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
@@ -21,7 +25,6 @@
  *
  */
 
-#include "busybox.h"
 #include <stdlib.h>
 #include <stdio.h>
 #include <stddef.h>
@@ -32,8 +35,12 @@
 #include <assert.h>
 #include <getopt.h>
 #include <sys/utsname.h>
+#include <sys/file.h>
+#include "busybox.h"
+
 
 
+#ifdef BB_FEATURE_NEW_MODULE_INTERFACE
 
 struct module_info
 {
@@ -48,19 +55,19 @@ 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
+static const int QM_MODULES = 1;
+static const int QM_DEPS = 2;
+static const int QM_REFS = 3;
+static const int QM_SYMBOLS = 4;
+static const int 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
+static const int NEW_MOD_RUNNING = 1;
+static const int NEW_MOD_DELETED = 2;
+static const int NEW_MOD_AUTOCLEAN = 4;
+static const int NEW_MOD_VISITED = 8;
+static const int NEW_MOD_USED_ONCE = 16;
+static const int NEW_MOD_INITIALIZING = 64;
 
 
 extern int lsmod_main(int argc, char **argv)
@@ -72,7 +79,7 @@ extern int lsmod_main(int argc, char **argv)
 	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));
+		perror_msg_and_die("QM_MODULES");
 	}
 
 	printf("Module                  Size  Used by\n");
@@ -83,7 +90,7 @@ extern int lsmod_main(int argc, char **argv)
 				continue;
 			}
 			/* else choke */
-			fatalError("module %s: QM_INFO: %s\n", mn, strerror(errno));
+			perror_msg_and_die("module %s: QM_INFO", mn);
 		}
 		while (query_module(mn, QM_REFS, deps, bufsize, &count)) {
 			if (errno == ENOENT) {
@@ -91,7 +98,7 @@ extern int lsmod_main(int argc, char **argv)
 				continue;
 			}
 			if (errno != ENOSPC) {
-				fatalError("module %s: QM_REFS: %s", mn, strerror(errno));
+				error_msg_and_die("module %s: QM_REFS", mn);
 			}
 			deps = xrealloc(deps, bufsize = count);
 		}
@@ -120,3 +127,26 @@ extern int lsmod_main(int argc, char **argv)
 
 	return( 0);
 }
+
+#else /*BB_FEATURE_OLD_MODULE_INTERFACE*/
+
+extern int lsmod_main(int argc, char **argv)
+{
+	int fd, i;
+	char line[128];
+
+	puts("Module                  Size  Used by");
+	fflush(stdout);
+
+	if ((fd = open("/proc/modules", O_RDONLY)) >= 0 ) {
+		while ((i = read(fd, line, sizeof(line))) > 0) {
+			write(fileno(stdout), line, i);
+		}
+		close(fd);
+		return 0;
+	}
+	perror_msg_and_die("/proc/modules");
+	return 1;
+}
+
+#endif /*BB_FEATURE_OLD_MODULE_INTERFACE*/