From 4444438e8ff628c37f0457cb702514889c99c334 Mon Sep 17 00:00:00 2001
From: Olaf Barthel <obarthel@gmx.net>
Date: Wed, 16 Apr 2008 07:46:05 +0000
Subject: [PATCH] - isatty() now checks if the file descriptor refers to a real
 file before   it calls IsInteractive() on it.

git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@15188 87f5fb63-7c3d-0410-a384-fd976d0f7a62
---
 library/changes         | 2 ++
 library/unistd_isatty.c | 8 +++++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/library/changes b/library/changes
index 8d45ac8..68dca3f 100644
--- a/library/changes
+++ b/library/changes
@@ -1,3 +1,5 @@
+- isatty() no longer crashes if passed a socket rather than a file.
+
 - Rewrote the GetRexxVar()/SetRexxVar() functions (mostly) in 'C', using available
   code as a reference. The 68k stubs currently only work for the 68k version of
   the library, and a solution for the OS4 build still needs to be found. The code
diff --git a/library/unistd_isatty.c b/library/unistd_isatty.c
index cac620b..8e1b227 100644
--- a/library/unistd_isatty.c
+++ b/library/unistd_isatty.c
@@ -1,5 +1,5 @@
 /*
- * $Id: unistd_isatty.c,v 1.9 2006-11-16 14:39:23 obarthel Exp $
+ * $Id: unistd_isatty.c,v 1.10 2008-04-16 07:46:05 obarthel Exp $
  *
  * :ts=4
  *
@@ -67,6 +67,12 @@ isatty(int file_descriptor)
 		goto out;
 	}
 
+	if(FLAG_IS_SET(fd->fd_Flags,FDF_IS_SOCKET))
+	{
+		__set_errno(ENOTTY);
+		goto out;
+	}
+
 	__fd_lock(fd);
 
 	result = 1;