1 files changed, 2 insertions, 0 deletions
diff --git a/sys/libn/io.c b/sys/libn/io.c
index 3827a82..8aa4aa0 100644
--- a/sys/libn/io.c
+++ b/sys/libn/io.c
@@ -54,6 +54,8 @@ io·readln(Stream *s, int n, byte* buf)
 {
     byte* b;
     b = fgets(buf, n+1, s);
+    if (b == nil) 
+        return -1;
 
     return strlen(buf);
 }