patch-2.3.14 linux/net/khttpd/sockets.c

• Lines: 104
• Date: Wed Aug 18 09:45:10 1999
• Orig file: v2.3.13/linux/net/khttpd/sockets.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.13/linux/net/khttpd/sockets.c linux/net/khttpd/sockets.c
@@ -0,0 +1,103 @@
+/*
+
+kHTTPd -- the next generation
+
+Basic socket functions
+
+*/
+/****************************************************************
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 2, or (at your option)
+ *	any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program; if not, write to the Free Software
+ *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ****************************************************************/
+
+#include "prototypes.h"
+#include <linux/kernel.h>
+#include <linux/net.h>
+#include <linux/version.h>
+#include <linux/smp_lock.h>
+#include <net/sock.h>
+
+
+/*
+
+MainSocket is shared by all threads, therefore it has to be
+a global variable.
+
+*/
+struct socket *MainSocket=NULL;
+
+
+int StartListening(const int Port)
+{
+	struct socket *sock;
+	struct sockaddr_in sin;
+	int error;
+	
+	EnterFunction("StartListening");
+	
+	/* First create a socket */
+	
+	error = sock_create(PF_INET,SOCK_STREAM,IPPROTO_TCP,&sock);
+	if (error<0) 
+	     (void)printk(KERN_ERR "Error during creation of socket; terminating\n");
+
+
+
+	/* Now bind the socket */
+	
+	sin.sin_family	     = AF_INET;
+	sin.sin_addr.s_addr  = INADDR_ANY;
+	sin.sin_port         = htons((unsigned short)Port);
+	
+	error = sock->ops->bind(sock,(struct sockaddr*)&sin,sizeof(sin));
+	if (error<0)
+	{
+		(void)printk(KERN_ERR "kHTTPd: Error binding socket. This means that some other \n");
+		(void)printk(KERN_ERR "        daemon is (or was a short time ago) using port %i.\n",Port);
+		return 0;	
+	}
+	
+	sock->sk->reuse   = 1;
+	sock->sk->nonagle = 0;
+	sock->sk->linger  = 1;
+
+	/* Now, start listening on the socket */
+	
+	/* I have no idea what a sane backlog-value is. 48 works so far. */
+	
+	error=sock->ops->listen(sock,48);	
+	if (error!=0)
+		(void)printk(KERN_ERR "kHTTPd: Error listening on socket \n");
+	sock->flags |= SO_ACCEPTCON;	
+	
+	MainSocket = sock;
+	
+	EnterFunction("StartListening");
+	return 1; 
+}	
+
+void StopListening(void)
+{
+	struct socket *sock;
+	
+	EnterFunction("StopListening");
+	if (MainSocket==NULL) return;
+	
+	sock=MainSocket;
+	MainSocket = NULL;
+	sock_release(sock);
+
+	LeaveFunction("StopListening");
+}