From b408f4e4e9da27d0e78fb0d5d0de43aa9d056209 Mon Sep 17 00:00:00 2001
From: Daniel Collins <solemnwarning@solemnwarning.net>
Date: Sun, 5 Jan 2014 21:46:59 +0000
Subject: [PATCH] Implemented listen function.

---
 src/ipxwrapper.def       |  1 +
 src/ipxwrapper.h         |  2 ++
 src/ipxwrapper_stubs.txt |  2 +-
 src/winsock.c            | 49 ++++++++++++++++++++++++++++++++++++++++
 src/wsock32_stubs.txt    |  2 +-
 5 files changed, 54 insertions(+), 2 deletions(-)

diff --git a/src/ipxwrapper.def b/src/ipxwrapper.def
index 96db8d1..5881ed7 100644
--- a/src/ipxwrapper.def
+++ b/src/ipxwrapper.def
@@ -18,3 +18,4 @@ EXPORTS
 	connect
 	send
 	getpeername
+	listen
diff --git a/src/ipxwrapper.h b/src/ipxwrapper.h
index 430ffbd..e49a231 100644
--- a/src/ipxwrapper.h
+++ b/src/ipxwrapper.h
@@ -43,6 +43,7 @@
 #define IPX_EXT_ADDR	(int)(1<<9)
 #define IPX_IS_SPX	(int)(1<<10)
 #define IPX_IS_SPXII	(int)(1<<11)
+#define IPX_LISTENING	(int)(1<<12)
 
 typedef struct ipx_socket ipx_socket;
 typedef struct ipx_packet ipx_packet;
@@ -109,5 +110,6 @@ int PASCAL r_ioctlsocket(SOCKET fd, long cmd, u_long *argp);
 int PASCAL r_connect(SOCKET fd, const struct sockaddr *addr, int addrlen);
 int PASCAL r_send(SOCKET fd, const char *buf, int len, int flags);
 int PASCAL r_getpeername(SOCKET fd, struct sockaddr *addr, int *addrlen);
+int PASCAL r_listen(SOCKET s, int backlog);
 
 #endif /* !IPXWRAPPER_H */
diff --git a/src/ipxwrapper_stubs.txt b/src/ipxwrapper_stubs.txt
index 5bf1671..59ddfdb 100644
--- a/src/ipxwrapper_stubs.txt
+++ b/src/ipxwrapper_stubs.txt
@@ -8,7 +8,7 @@ ntohl:4
 htons:4
 ntohs:4
 select:4
-listen:4
+r_listen:4
 accept:4
 send:4
 connect:4
diff --git a/src/winsock.c b/src/winsock.c
index cb9597b..83093ae 100644
--- a/src/winsock.c
+++ b/src/winsock.c
@@ -1307,3 +1307,52 @@ int PASCAL getpeername(SOCKET fd, struct sockaddr *addr, int *addrlen)
 		return r_getpeername(fd, addr, addrlen);
 	}
 }
+
+int PASCAL listen(SOCKET s, int backlog)
+{
+	ipx_socket *sock = get_socket(s);
+	
+	if(sock)
+	{
+		if(sock->flags & IPX_IS_SPX)
+		{
+			if(!(sock->flags & IPX_BOUND))
+			{
+				unlock_sockets();
+				
+				WSASetLastError(WSAEINVAL);
+				return -1;
+			}
+			
+			if(sock->flags & IPX_LISTENING)
+			{
+				unlock_sockets();
+				
+				WSASetLastError(WSAEISCONN);
+				return -1;
+			}
+			
+			if(r_listen(sock->fd, backlog) == -1)
+			{
+				unlock_sockets();
+				
+				return -1;
+			}
+			
+			sock->flags |= IPX_LISTENING;
+			
+			unlock_sockets();
+			
+			return 0;
+		}
+		else{
+			unlock_sockets();
+			
+			WSASetLastError(WSAEOPNOTSUPP);
+			return -1;
+		}
+	}
+	else{
+		return r_listen(s, backlog);
+	}
+}
diff --git a/src/wsock32_stubs.txt b/src/wsock32_stubs.txt
index 59c54ec..aa67678 100644
--- a/src/wsock32_stubs.txt
+++ b/src/wsock32_stubs.txt
@@ -10,7 +10,7 @@ htons
 inet_addr
 inet_ntoa
 ioctlsocket:0
-listen
+listen:0
 ntohl
 ntohs
 recv:0