1 files changed, 13 insertions, 0 deletions
diff --git a/strbuf.c b/strbuf.c
index 4d31567a1a..f5d609a51f 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -563,3 +563,16 @@ int fprintf_ln(FILE *fp, const char *fmt, ...)
 		return -1;
 	return ret + 1;
 }
+
+char *xstrdup_tolower(const char *string)
+{
+	char *result;
+	size_t len, i;
+
+	len = strlen(string);
+	result = xmalloc(len + 1);
+	for (i = 0; i < len; i++)
+		result[i] = tolower(string[i]);
+	result[i] = '\0';
+	return result;
+}