Return a constant string from the mimes database.

We are not modifying it so there is no need to copy memory around.
This also prevents file_mime getting out of sync as had already
happend. It had a size of 50 while the mime types database type used
to have a size of 70.

main.c

@@ -97,13 +97,13 @@ status(const int code, const char *file_mime, const char *lang)
 void
 display_file(const char *path, const char *lang)
 {
+	FILE		*fd;
+	struct stat	 sb;
+	ssize_t		 nread;
 	size_t		 buflen = BUFF_LEN_1;
 	char		*buffer[BUFF_LEN_1];
 	char		 extension[10];
-	char 		file_mime[50] = "";
+	const char	*file_mime;
-	ssize_t 	nread;
-	struct stat 	sb;
-	FILE           *fd;
 
 	/* this is to check if path is a directory */
 	if (stat(path, &sb) == -1)
@@ -117,7 +117,7 @@ display_file(const char *path, const char *lang)
 	if (S_ISDIR(sb.st_mode) == 1)
 		goto err;
 
-	get_file_mime(path, file_mime, sizeof(file_mime));
+	file_mime = get_file_mime(path);
 
 	status(20, file_mime, lang);
 

mimes.c

@@ -117,23 +117,22 @@ static const struct {
 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
 #endif
 
-void
+const char *
-get_file_mime(const char *path, char *type, const ssize_t type_size)
+get_file_mime(const char *path)
 {
 	int	 i;
 	char	*extension;
 
-	extension = strrchr(path, '.');
+	if ((extension = strrchr(path, '.')) == NULL)
+		goto out;
 
 	/* look for the MIME in the database */
 	for (i = 0; i < nitems(database); i++) {
-		if (strcmp(database[i].extension, extension + 1) == 0) {
+		if (strcmp(database[i].extension, extension + 1) == 0)
-			strlcpy(type, database[i].type, type_size);
+			return (database[i].type);
-			break;
-		}
 	}
 
+ out:
 	/* if no MIME have been found, set a default one */
-	if (strlen(type) == 0)
+	return ("text/gemini");
-		strlcpy(type, "text/gemini", type_size);
 }

mimes.h

@@ -1 +1 @@
-void 		get_file_mime(const char *, char *, const ssize_t);
+const char	*get_file_mime(const char *);