From 0a0a45e22a1f97ac834f757b09fef4b985cee99d Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Fri, 26 Sep 2003 08:45:24 +0000
Subject: [PATCH] 	* spawn.cc (spawn_guts): Set errno to E2BIG if command
 line is 	longer than CreateProcess allows (32K).

---
 winsup/cygwin/ChangeLog | 5 +++++
 winsup/cygwin/spawn.cc  | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 0a2fff398..b0c3d7540 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+2003-09-26  Corinna Vinschen  <corinna@vinschen.de>
+
+	* spawn.cc (spawn_guts): Set errno to E2BIG if command line is
+	longer than CreateProcess allows (32K).
+
 2003-09-25  Christopher Faylor  <cgf@redhat.com>
 
 	* dtable.cc (build_fh_name): Return pointer to a 'nodevice' rather than
diff --git a/winsup/cygwin/spawn.cc b/winsup/cygwin/spawn.cc
index 30d1dd749..ce61c22d5 100644
--- a/winsup/cygwin/spawn.cc
+++ b/winsup/cygwin/spawn.cc
@@ -587,6 +587,13 @@ spawn_guts (const char * prog_arg, const char *const *argv,
       else
 	one_line.add ("", 1);
       MALLOC_CHECK;
+
+      if (one_line.ix > 32767)
+	{
+	  debug_printf ("Command line too long (>32K), return E2BIG");
+	  set_errno (E2BIG);
+	  return -1;
+	}
     }
 
   char *envblock;