From e916d668f7b184c41ee3d912ccda8cc7ca4aa765 Mon Sep 17 00:00:00 2001
From: "Peter H. Froehlich" <peter.hans.froehlich@gmail.com>
Date: Tue, 27 Sep 2016 16:58:29 -0400
Subject: [PATCH] Fix unsigned conversion bug.

Since readi() returns -1 for errors, checking with < against an unsigned
value is inadvisable. Checking with != works as intended however.
---
 exec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/exec.c b/exec.c
index 6be6af1bc4..4d7d97cc8f 100644
--- a/exec.c
+++ b/exec.c
@@ -28,7 +28,7 @@ exec(char *path, char **argv)
   pgdir = 0;
 
   // Check ELF header
-  if(readi(ip, (char*)&elf, 0, sizeof(elf)) < sizeof(elf))
+  if(readi(ip, (char*)&elf, 0, sizeof(elf)) != sizeof(elf))
     goto bad;
   if(elf.magic != ELF_MAGIC)
     goto bad;