socket通讯接口代码

socket通讯接口代码

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#define MYPORT	3490
#define BACKLOG 10
int  main( void )
{
	int			sockfd, new_fd;
	struct sockaddr_in	my_addr;
	struct sockaddr_in	their_addr;
	int			sin_size;
	if ( (sockfd = socket( AF_INET, SOCK_STREAM, 0 ) ) == -1 )
	{
		printf( "socket" );
		return(1);
	}
	my_addr.sin_family	= AF_INET;
	my_addr.sin_port	= htons( MYPORT );
	my_addr.sin_addr.s_addr = INADDR_ANY;
	bzero( &(my_addr.sin_zero), 10 );
	if ( bind( sockfd, (struct sockaddr *) &my_addr, sizeof(struct sockaddr) ) == -1 )
	{
		printf( "bind" );
		return(1);
	}
	if ( listen( sockfd, BACKLOG ) == -1 )
	{
		printf( "listen" ); return(1);
	}
	while ( 1 )
	{
		sin_size = sizeof(struct sockaddr_in);
		if ( (new_fd = accept( sockfd, (struct sockaddr *) &their_addr, &sin_size ) ) == -1 )
		{
			printf( "accept" );
			continue;
		}
		printf( "server: got connection from %s\n", \
			inet_ntoa( their_addr.sin_addr ) );
		if ( !fork() )
		{
			if ( send( new_fd, "Hello, world!\n", 14, 0 ) == -1 )
				printf( "send" );
			close( new_fd );
			exit( 0 );
		}
		close( new_fd );
		while ( waitpid( -1, NULL, WNOHANG ) > 0 )
			;
	}
}

参考网站：http://www.cnblogs.com/L-hq815/archive/2012/07/09/2583043.html