Extend pre-computed hash{1,2} by 3 bytes each to BCRYPT_HASHSIZE = 64 bytes.
bcrypt_hashpw expects the second and third argument to have room for at least
many characters.
Though this is probably not an issue in production, I have contacted upstream
about it on 2023-07-02 at <info@litespeedtech.com>.

Additionally, abort execution of test runner on failure for "die" to trigger.

Signed-off-by: Lucio Sauer <watermanpaint@posteo.net>
diff --git a/bcrypt.c b/bcrypt.c
index bd8722b..0c230f2 100644
--- a/bcrypt.c
+++ b/bcrypt.c
@@ -155,8 +155,8 @@ int main(void)
 	int ret;
 
 	const char pass[] = "hi,mom";
-	const char hash1[] = "$2a$10$VEVmGHy4F4XQMJ3eOZJAUeb.MedU0W10pTPCuf53eHdKJPiSE8sMK";
-	const char hash2[] = "$2a$10$3F0BVk5t8/aoS.3ddaB3l.fxg5qvafQ9NybxcpXLzMeAt.nVWn.NO";
+	const char hash1[] = "$2a$10$VEVmGHy4F4XQMJ3eOZJAUeb.MedU0W10pTPCuf53eHdKJPiSE8sMK\0\0\0";
+	const char hash2[] = "$2a$10$3F0BVk5t8/aoS.3ddaB3l.fxg5qvafQ9NybxcpXLzMeAt.nVWn.NO\0\0\0";
 
 	ret = bcrypt_gensalt(12, salt);
 	assert(ret == 0);
@@ -171,22 +171,26 @@ int main(void)
 
 	ret = bcrypt_hashpw(pass, hash1, hash);
 	assert(ret == 0);
-	printf("First hash check: %s\n", (strcmp(hash1, hash) == 0)?"OK":"FAIL");
+	assert(strcmp(hash1, hash) == 0);
+	printf("First hash check: OK\n");
 	ret = bcrypt_hashpw(pass, hash2, hash);
 	assert(ret == 0);
-	printf("Second hash check: %s\n", (strcmp(hash2, hash) == 0)?"OK":"FAIL");
+	assert(strcmp(hash2, hash) == 0);
+	printf("Second hash check: OK\n");
 
 	before = clock();
 	ret = (bcrypt_checkpw(pass, hash1) == 0);
 	after = clock();
-	printf("First hash check with bcrypt_checkpw: %s\n", ret?"OK":"FAIL");
+	assert(ret == 1);
+	printf("First hash check with bcrypt_checkpw: OK\n");
 	printf("Time taken: %f seconds\n",
 	       (double)(after - before) / CLOCKS_PER_SEC);
 
 	before = clock();
 	ret = (bcrypt_checkpw(pass, hash2) == 0);
 	after = clock();
-	printf("Second hash check with bcrypt_checkpw: %s\n", ret?"OK":"FAIL");
+	assert(ret == 1);
+	printf("Second hash check with bcrypt_checkpw: OK\n");
 	printf("Time taken: %f seconds\n",
 	       (double)(after - before) / CLOCKS_PER_SEC);