[vala] posix: add socklen_t, setsockopt(2), and getsockopt(2)

[Michael Lauer <mlauer src gnome org>]

commit bf8cb0354d61b470a2d6d272b4b022584dfa7aeb
Author: Michael 'Mickey' Lauer <mickey vanille-media de>
Date:   Wed Dec 22 23:46:28 2010 +0100

    posix: add socklen_t, setsockopt(2), and getsockopt(2)

 vapi/posix.vapi |   17 +++++++++++++----
 1 files changed, 13 insertions(+), 4 deletions(-)
---
diff --git a/vapi/posix.vapi b/vapi/posix.vapi
index 32da7af..19f00c6 100644
--- a/vapi/posix.vapi
+++ b/vapi/posix.vapi
@@ -1268,18 +1268,27 @@ namespace Posix {
 	public const int AF_UNIX;
 	[CCode (cheader_filename = "sys/socket.h", sentinel = "")]
 	public int accept (int sfd, ... );
-	[CCode (cheader_filename = "sys/socket.h", sentinel = "")]
+    [CCode (cheader_filename = "sys/socket.h", sentinel = "")]
 	public int bind (int sockfd, ...);
 	[CCode (cheader_filename = "sys/socket.h",  sentinel = "")]
 	public int connect(int sfd, ... );
-	[CCode (cheader_filename = "sys/socket.h")]
+    [CCode (cheader_filename = "sys/socket.h")]
+    public int getsockopt (int sockfd, int level, int optname, void* optval, out socklen_t optlen);
+    [CCode (cheader_filename = "sys/socket.h")]
 	public int listen (int sfd, int backlog);
-	[CCode (cheader_filename = "sys/socket.h")]
+    [CCode (cheader_filename = "sys/socket.h")]
+    public int setsockopt(int sockfd, int level, int optname, void* optval, socklen_t optlen);
+    [CCode (cheader_filename = "sys/socket.h")]
 	public int socket (int domain, int type, int protocol);
-
 	[CCode (cheader_filename = "sys/socket.h")]
 	public int socketpair (int domain, int type, int protocol, int[] sv);
 
+    [SimpleType]
+    [IntegerType]
+    [CCode (cname = "socklen_t", cheader_filename = "sys/socket.h", default_value = "0")]
+    public struct socklen_t {
+    }
+
 	[SimpleType]
 	[CCode (cname = "struct in_addr", cheader_filename = "sys/socket.h", destroy_function = "")]
 	public struct InAddr {