From 6971d03520a4ebd3c33f3da6f01438608e3d560d Mon Sep 17 00:00:00 2001
From: Daniel Barlow <dan@telent.net>
Date: Sun, 7 Jan 2024 21:24:16 +0000
Subject: [PATCH] preinit: check return from write()

---
 pkgs/preinit/parseopts.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/pkgs/preinit/parseopts.c b/pkgs/preinit/parseopts.c
index 0523924..868fd52 100644
--- a/pkgs/preinit/parseopts.c
+++ b/pkgs/preinit/parseopts.c
@@ -36,9 +36,10 @@ char * pr_u32(int32_t input) {
     i+=2;
 
     buf[i] ='\0';
-    write(2, buf, i);
-
-    return buf;
+    if(write(2, buf, i))
+	return buf;
+    else
+	return NULL;
 }