From 4fec3469668faf0022d32fc195c9451523219cb2 Mon Sep 17 00:00:00 2001
From: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Date: Tue, 27 May 2008 10:13:54 +0000
Subject: [PATCH] - use (uC)libc functions. Saves a dozen bytes.

---
 modutils/insmod.c |  9 +++++++--
 modutils/rmmod.c  | 12 +++++++++---
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/modutils/insmod.c b/modutils/insmod.c
index f7e9a6672..30d471b78 100644
--- a/modutils/insmod.c
+++ b/modutils/insmod.c
@@ -4184,8 +4184,14 @@ int insmod_main(int argc, char **argv)
 #if ENABLE_FEATURE_2_6_MODULES
 
 #include <sys/mman.h>
+
+#ifdef __UCLIBC__
+extern int init_module(void *module, unsigned long len, const char *options);
+#else
 #include <asm/unistd.h>
 #include <sys/syscall.h>
+#define init_module(mod, len, opts) syscall(__NR_init_module, mod, len, opts)
+#endif
 
 /* We use error numbers in a loose translation... */
 static const char *moderror(int err)
@@ -4257,10 +4263,9 @@ static int insmod_ng_main(int argc ATTRIBUTE_UNUSED, char **argv)
 	map = xmalloc_open_read_close(filename, &len);
 #endif
 
-	if (syscall(__NR_init_module, map, len, options) != 0)
+	if (init_module(map, len, options) != 0)
 		bb_error_msg_and_die("cannot insert '%s': %s",
 				filename, moderror(errno));
-
 	return 0;
 }
 
diff --git a/modutils/rmmod.c b/modutils/rmmod.c
index 61cfbd147..a96a27457 100644
--- a/modutils/rmmod.c
+++ b/modutils/rmmod.c
@@ -8,7 +8,13 @@
  */
 
 #include "libbb.h"
-#include <sys/syscall.h>
+
+#ifdef __UCLIBC__
+extern int delete_module(const char *module, unsigned int flags);
+#else
+# include <sys/syscall.h>
+# define delete_module(mod, flags) syscall(__NR_delete_module, mod, flags)
+#endif
 
 #if ENABLE_FEATURE_2_6_MODULES
 static inline void filename2modname(char *modname, const char *afterslash)
@@ -59,7 +65,7 @@ int rmmod_main(int argc, char **argv)
 		size_t pnmod = -1; /* previous number of modules */
 
 		while (nmod != pnmod) {
-			if (syscall(__NR_delete_module, NULL, flags) != 0) {
+			if (delete_module(NULL, flags) != 0) {
 				if (errno == EFAULT)
 					return ret;
 				bb_perror_msg_and_die("rmmod");
@@ -84,7 +90,7 @@ int rmmod_main(int argc, char **argv)
 			filename2modname(misc_buf, bb_basename(argv[n]));
 		}
 
-		if (syscall(__NR_delete_module, ENABLE_FEATURE_2_6_MODULES ? misc_buf : argv[n], flags)) {
+		if (delete_module(ENABLE_FEATURE_2_6_MODULES ? misc_buf : argv[n], flags)) {
 			bb_simple_perror_msg(argv[n]);
 			ret = EXIT_FAILURE;
 		}