modutils/*: rewrite by Timo Teras <timo.teras AT iki.fi>

- a lot faster (linear algorithmic complexity, smaller memory foot print)
- a lot smaller (the old code was overly complicated)
- loading of aliases is now module-init-tools compliant
- blacklisting is done correctly (-b option added)
- module argument quoting done right
- depmod now correctly generates modules.symbols and modules.alias

add/remove: 16/21 grow/shrink: 4/6 up/down: 6930/-9316 Total: -2386 bytes
   text    data     bss     dec     hex filename
 806039     592    6680  813311   c68ff busybox_old
 803498     592    6676  810766   c5f0e busybox_unstripped

1 files changed, 68 insertions, 0 deletions

diff --git a/modutils/modutils.h b/modutils/modutils.h
new file mode 100644
index 000000000..32ee18b06
--- /dev/null
+++ b/modutils/modutils.h
@@ -0,0 +1,68 @@
+/*
+ * Common modutils related functions for busybox
+ *
+ * Copyright (C) 2008 by Timo Teras <timo.teras@iki.fi>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#ifndef __MODUTILS_H__
+#define __MODUTILS_H__
+
+#include "libbb.h"
+#include <stdio.h>
+
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
+
+/* As defined in linux/include/linux/module.h */
+#define MODULE_NAME_LEN 64
+
+const char *moderror(int err) FAST_FUNC;
+llist_t *llist_find(llist_t *first, const char *str) FAST_FUNC;
+void replace(char *s, char what, char with) FAST_FUNC;
+char *replace_underscores(char *s) FAST_FUNC;
+int string_to_llist(char *string, llist_t **llist, const char *delim) FAST_FUNC ;
+char *filename2modname(const char *filename, char *modname) FAST_FUNC;
+char *parse_cmdline_module_options(char **argv) FAST_FUNC;
+
+#define INSMOD_OPTS "vq" USE_FEATURE_2_4_MODULES("sLo:fkx") \
+	USE_FEATURE_INSMOD_LOAD_MAP("m")
+#define INSMOD_ARGS USE_FEATURE_2_4_MODULES(, &insmod_outputname)
+
+enum {
+	INSMOD_OPT_VERBOSE	= 0x0001,
+	INSMOD_OPT_SILENT	= 0x0002,
+	INSMOD_OPT_SYSLOG	= 0x0004 * ENABLE_FEATURE_2_4_MODULES,
+	INSMOD_OPT_LOCK		= 0x0008 * ENABLE_FEATURE_2_4_MODULES,
+	INSMOD_OPT_OUTPUTNAME	= 0x0010 * ENABLE_FEATURE_2_4_MODULES,
+	INSMOD_OPT_FORCE	= 0x0020 * ENABLE_FEATURE_2_4_MODULES,
+	INSMOD_OPT_KERNELD	= 0x0040 * ENABLE_FEATURE_2_4_MODULES,
+	INSMOD_OPT_NO_EXPORT	= 0x0080 * ENABLE_FEATURE_2_4_MODULES,
+	INSMOD_OPT_PRINT_MAP	= 0x0100 * ENABLE_FEATURE_INSMOD_LOAD_MAP,
+#if ENABLE_FEATURE_2_4_MODULES
+#if ENABLE_FEATURE_INSMOD_LOAD_MAP
+	INSMOD_OPT_UNUSED	= 0x0200,
+#else /* ENABLE_FEATURE_INSMOD_LOAD_MAP */
+	INSMOD_OPT_UNUSED	= 0x0100
+#endif
+#else /* ENABLE_FEATURE_2_4_MODULES */
+	INSMOD_OPT_UNUSED	= 0x0004
+#endif
+};
+
+int FAST_FUNC bb_init_module(const char *module, const char *options);
+int FAST_FUNC bb_delete_module(const char *module, unsigned int flags);
+
+#if ENABLE_FEATURE_2_4_MODULES
+extern char *insmod_outputname;
+
+int FAST_FUNC bb_init_module_24(const char *module, const char *options);
+#endif
+
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
+#endif
+
+#endif