Improve error handling

1 files changed, 7 insertions, 2 deletions

diff --git a/src/disp.c b/src/disp.c
index f3448ae..6710f40 100644
--- a/src/disp.c
+++ b/src/disp.c
@@ -18,12 +18,13 @@
 
 #include <dlfcn.h>
 #include <string.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <assert.h>
 
 #include "disp.h"
 
-#define dlsym_and_check(dest, name)		\
+#define dlsym_and_check(dest, name)			\
 	dest->name = dlsym(dest->dl_handle, #name);	\
 	if (!dest->name) {				\
 		dlclose(dest->dl_handle);		\
@@ -43,7 +44,11 @@ get_disp(char *disp_name)
 	void *handle = dlopen(so_path, RTLD_LAZY);
 
 	if (!handle)
-		return NULL;
+	{
+		char *msg = dlerror();
+		fprintf(stderr, "calculer: %s\n", msg);
+		exit(1);
+	}
 
 	struct disp *disp = malloc(sizeof(*disp));
 	disp->dl_handle = handle;