diff --git a/src/common.c b/src/common.c
index 7f8d1e01..d282cbb6 100644
--- a/src/common.c
+++ b/src/common.c
@@ -125,6 +125,9 @@ uint8_t * p = buf;
 		if (ret == -1) {
 			if (errno != EAGAIN && errno != EINTR)
 				return ret;
+		} else if (ret == 0 && left != 0) {
+			errno = ENOENT;
+			return -1;
 		}
 
 		if (ret > 0) {