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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [net/] [khttpd/] [sockets.c] - Rev 1275
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/* 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; } /* Grrr... setsockopt() does this. */ sock->sk->reuse = 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"); MainSocket = sock; LeaveFunction("StartListening"); return 1; } void StopListening(void) { struct socket *sock; EnterFunction("StopListening"); if (MainSocket==NULL) return; sock=MainSocket; MainSocket = NULL; sock_release(sock); LeaveFunction("StopListening"); }
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