now stuck in dlsym/dereferencing type-punned pointer will break strict-aliasing rules beautiness :-)

1 files changed, 19 insertions, 1 deletions

diff --git a/tests/library/test_loader.c b/tests/library/test_loader.c
index 6088c92..b9bce9d 100644
--- a/tests/library/test_loader.c
+++ b/tests/library/test_loader.c
@@ -19,12 +19,17 @@
 
 #include <stdlib.h>		/* for EXIT_SUCCESS, EXIT_FAILURE */
 #include <stdio.h>		/* for fprintf */
+#include <assert.h>		/* for assert */
 
 int main( void ) {
 	wolf_library_p library;
 	wolf_error_t error;
 	char errbuf[512];
+	typedef int (*multiply_by_two_func)( int );
+	multiply_by_two_func func;
+	int res = 0;
 
+	/* open the libray */
 	library = wolf_library_load( "./testlib.so.0.0.0", &error );
 	if( error != WOLF_OK ) {
 		fprintf( stderr, "Error %d loading the library: %s\n",
@@ -32,7 +37,20 @@ int main( void ) {
 		return EXIT_FAILURE;
 	}
 
-	wolf_library_unload( library );
+	/* fetch a known symbol (multiply_by_two) */
+	*(void **)(&func) = wolf_library_get( library, "multiply_by_two", &error );
+
+	/* call it */
+	res = func( 2 );
+	assert( res == 4 );
+
+	/* close library */
+	error = wolf_library_unload( library );
+	if( error != WOLF_OK ) {
+		fprintf( stderr, "Error %d unloading the library: %s\n",
+			error, wolf_library_errmsg( error, library, errbuf, 512 ) );
+		return EXIT_FAILURE;
+	}
 
 	return EXIT_SUCCESS;
 }