From: Daniel Dunbar <daniel@zuster.org>
Date: Tue, 4 Aug 2009 20:32:25 +0000 (+0000)
Subject: When exec() fails, return 127 instead of errno; the parent process has no way to
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6db0a8b4fde6284b9812d59ad0467241b8301431;p=oota-llvm.git

When exec() fails, return 127 instead of errno; the parent process has no way to
distinguish that the result is errno, so it can't use it to provide more
information about the error (it also exposes the numeric value of errno).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78098 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/System/Unix/Program.inc b/lib/System/Unix/Program.inc
index 3a562e45d41..d2baca80025 100644
--- a/lib/System/Unix/Program.inc
+++ b/lib/System/Unix/Program.inc
@@ -197,12 +197,12 @@ Program::Execute(const Path& path,
 
       // Execute!
       if (envp != 0)
-        execve (path.c_str(), (char**)args, (char**)envp);
+        execve(path.c_str(), (char**)args, (char**)envp);
       else
-        execv (path.c_str(), (char**)args);
+        execv(path.c_str(), (char**)args);
       // If the execve() failed, we should exit and let the parent pick up
       // our non-zero exit status.
-      exit (errno);
+      exit(127);
     }
 
     // Parent process: Break out of the switch to do our processing.