Added `format_len()`.

1 files changed, 9 insertions, 0 deletions

diff --git a/misc.c b/misc.c
index dd00480..bd24b30 100644
--- a/misc.c
+++ b/misc.c
@@ -125,3 +125,12 @@ char *sanitize_str(char *str) {
 	}
 	return san_str;
 }
+
+int format_len(const char *fmt, ...) {
+	int len = 0;
+	va_list args;
+	va_start(args, fmt);
+	len = vsnprintf(NULL, 0, fmt, args);
+	va_end(args);
+	return len;
+}