move get_mimetype_from_file() to shared

Signed-off-by: Christian Hesse <mail@eworm.de>

1 files changed, 40 insertions, 0 deletions

diff --git a/shared.c b/shared.c
index 3bd2a9e..fb4e8ca 100644
--- a/shared.c
+++ b/shared.c
@@ -560,3 +560,43 @@ char *expand_macros(const char *txt)
 	}
 	return result;
 }
+
+char *get_mimetype_from_file(const char *filename, const char *ext)
+{
+	static const char *delimiters;
+	char *result;
+	FILE *fd;
+	char line[1024];
+	char *mimetype;
+	char *token;
+
+	if (!filename)
+		return NULL;
+
+	fd = fopen(filename, "r");
+	if (!fd)
+		return NULL;
+
+	delimiters = " \t\r\n";
+	result = NULL;
+
+	/* loop over all lines in the file */
+	while (!result && fgets(line, sizeof(line), fd)) {
+		mimetype = strtok(line, delimiters);
+
+		/* skip empty lines and comment lines */
+		if (!mimetype || (mimetype[0] == '#'))
+			continue;
+
+		/* loop over all extensions of mimetype */
+		while ((token = strtok(NULL, delimiters))) {
+			if (!strcasecmp(ext, token)) {
+				result = xstrdup(mimetype);
+				break;
+			}
+		}
+	}
+	fclose(fd);
+
+	return result;
+}