From 3f6dc30470d5751b83645df180a60cad3e7907ef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20Andr=C3=A9=20Tanner?= <mat@brain-dump.org>
Date: Sun, 11 Mar 2018 09:55:06 +0100
Subject: [PATCH] fix out of bounds write for zero length buffer in gethostname

---
 src/unistd/gethostname.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/unistd/gethostname.c b/src/unistd/gethostname.c
index f984b7dd..633ef571 100644
--- a/src/unistd/gethostname.c
+++ b/src/unistd/gethostname.c
@@ -8,6 +8,6 @@ int gethostname(char *name, size_t len)
 	if (uname(&uts)) return -1;
 	if (len > sizeof uts.nodename) len = sizeof uts.nodename;
 	for (i=0; i<len && (name[i] = uts.nodename[i]); i++);
-	if (i==len) name[i-1] = 0;
+	if (i && i==len) name[i-1] = 0;
 	return 0;
 }
-- 
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