udpclient.c

基于东南大学开发的SEP3203的ARM7中的所有驱动

#include <stdio.h>
#include "netconf.h"
#include "net.h"
#include "netbuf.h"
#include "domain.h"


extern unsigned int total;

static const char str[] = "GET / HTTP/1.0\n\n";
static char dname[] = "www.seu.edu.cn";


void UdpClient(void)
{
    int bytes;                                           
    int socket;                                         
    struct sockaddr_in sockAddr;              
    char buffer[512];                               
    int32 ip_addr;
    u_long server_addr;

    total = 0;


	server_addr = inet_addr("211.65.48.141");
	server_addr = inet_addr("202.119.24.12");
	ip_addr = *((int32 *)&server_addr);
	add_nameserver(ip_addr);

	ip_addr = resolve(dname);

	if (ip_addr == 0) ext_tsk();

	sockAddr.ipAddr = inet_addr("202.119.24.12");
       sockAddr.ipAddr = ntohl(inet_addr("202.119.24.32"));
       sockAddr.sin_port = 53;
       sockAddr.sin_family = AF_INET;

       socket = udpOpen();
    
       udpConnect(socket, &sockAddr, 0);
    
       udpWrite(socket, str , strlen(str));
       udpWrite(socket, dname,sizeof(dname));       /*change the "dnsstr" to the "dname"*/
    do {
        bytes = udpRead(socket, &buffer, sizeof(buffer));
        if (bytes > 0) {
				total += bytes;            
				if (total >= 3000) 
					break;
        	}
    } while (1);

    udpClose(socket);

    ext_tsk();
	
}