From 696bb992c3b3f5536c3c204c3e7130832fdce0e6 Mon Sep 17 00:00:00 2001
From: FRIGN <dev@frign.de>
Date: Sun, 1 Feb 2015 03:54:56 +0100
Subject: [PATCH] Return number of bytes read even on a partial read

and set the rune to Runeerror for later checking (if desired).
---
 libutf/readrune.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libutf/readrune.c b/libutf/readrune.c
index 8fd003b..8bab478 100644
--- a/libutf/readrune.c
+++ b/libutf/readrune.c
@@ -34,7 +34,8 @@ readrune(const char *file, FILE *fp, Rune *r)
 					file, strerror(errno));
 				exit(1);
 			}
-			return 0;
+			*r = Runeerror;
+			return i;
 		}
 		buf[i++] = c;
 		if (fullrune(buf, i)) {