From f08a6765a443ed104889a3a15a4f42c3a0eece3b Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Fri, 14 Aug 2009 06:02:56 +0000
Subject: Replace the selinux.spawn() function with a spawn_wrapper() function
 and use it inside portage._spawn_fetch() and portage.spawn().

svn path=/main/trunk/; revision=14022
---
 pym/portage/__init__.py | 26 ++++++++++----------------
 pym/portage/_selinux.py | 20 ++++++++++++--------
 2 files changed, 22 insertions(+), 24 deletions(-)

(limited to 'pym')

diff --git a/pym/portage/__init__.py b/pym/portage/__init__.py
index 94e38e4fb..46cfb9190 100644
--- a/pym/portage/__init__.py
+++ b/pym/portage/__init__.py
@@ -3870,8 +3870,8 @@ def spawn(mystring, mysettings, debug=0, free=0, droppriv=0, sesandbox=0, fakero
 		spawn_func = portage.process.spawn_sandbox
 
 	if sesandbox:
-		con = selinux.settype(mysettings["PORTAGE_SANDBOX_T"])
-		selinux.setexec(con)
+		spawn_func = selinux.spawn_wrapper(spawn_func,
+			mysettings["PORTAGE_SANDBOX_T"])
 
 	returnpid = keywords.get("returnpid")
 	keywords["returnpid"] = True
@@ -3880,8 +3880,6 @@ def spawn(mystring, mysettings, debug=0, free=0, droppriv=0, sesandbox=0, fakero
 	finally:
 		if logfile:
 			os.close(slave_fd)
-		if sesandbox:
-			selinux.setexec()
 
 	if returnpid:
 		return mypids
@@ -3956,21 +3954,17 @@ def _spawn_fetch(settings, args, **kwargs):
 		os.getuid() == 0 and portage_gid and portage_uid:
 		kwargs.update(_userpriv_spawn_kwargs)
 
-	try:
+	spawn_func = portage.process.spawn
 
-		if settings.selinux_enabled():
-			con = selinux.settype(settings["PORTAGE_FETCH_T"])
-			selinux.setexec(con)
-			# bash is an allowed entrypoint, while most binaries are not
-			if args[0] != BASH_BINARY:
-				args = [BASH_BINARY, "-c", "exec \"$@\"", args[0]] + args
+	if settings.selinux_enabled():
+		spawn_func = selinux.spawn_wrapper(spawn_func,
+			settings["PORTAGE_FETCH_T"])
 
-		rval = portage.process.spawn(args,
-			env=dict(settings.iteritems()), **kwargs)
+		# bash is an allowed entrypoint, while most binaries are not
+		if args[0] != BASH_BINARY:
+			args = [BASH_BINARY, "-c", "exec \"$@\"", args[0]] + args
 
-	finally:
-		if settings.selinux_enabled():
-			selinux.setexec()
+	rval = spawn_func(args, env=dict(settings.iteritems()), **kwargs)
 
 	return rval
 
diff --git a/pym/portage/_selinux.py b/pym/portage/_selinux.py
index e3c35ec5d..e91eb110c 100644
--- a/pym/portage/_selinux.py
+++ b/pym/portage/_selinux.py
@@ -73,14 +73,18 @@ def setfscreate(ctx="\n"):
 		raise OSError(
 			"setfscreate: Failed setting fs create context \"%s\"." % ctx)
 
-def spawn(selinux_type, spawn_func, mycommand, opt_name=None, **keywords):
-	selinux_type = portage._unicode_encode(selinux_type)
-	con = settype(selinux_type)
-	setexec(con)
-	try:
-		return spawn_func(mycommand, opt_name=opt_name, **keywords)
-	finally:
-		setexec()
+def spawn_wrapper(spawn_func, selinux_type):
+
+	def wrapper_func(*args, **kwargs):
+		selinux_type = portage._unicode_encode(selinux_type)
+		con = settype(selinux_type)
+		setexec(con)
+		try:
+			return spawn_func(*args, **kwargs)
+		finally:
+			setexec()
+
+	return wrapper_func
 
 def symlink(target, link, reflnk):
 	target = portage._unicode_encode(target)
-- 
cgit v1.2.3-1-g7c22