Fail gracefully if mime database is not present

1 files changed, 7 insertions, 1 deletions

diff --git a/src/mime.c b/src/mime.c
index 0c4cc8b..9f3f6d0 100644
--- a/src/mime.c
+++ b/src/mime.c
@@ -1,4 +1,5 @@
 #include <assert.h>
+#include <errno.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -29,7 +30,12 @@ mime_init()
 	mimedb = malloc(mimedb_sz * sizeof(struct mime_info));
 
 	FILE *f = fopen(MIMEDB, "r");
-	assert(f);
+	if (!f) {
+		fprintf(stderr, "Unable to open MIME database for reading: %s\n",
+			strerror(errno));
+		fprintf(stderr, "Is " MIMEDB " installed?\n");
+		assert(0);
+	}
 
 	char *line = NULL;
 	size_t n = 0;