请问如何实现client/server模式的互通信问题啊，我实现不了啊
我是刚开始学习vc.net所以不要大家笑话我啊……
server 端:
SOCKET UDPserver(const char *service);
void main()
{
char *service ="3334";
struct sockaddr_in sin;
int socket;
WSADATA wsadata;
int alen,cc;
char buf[BUFSIZE];
if(WSAStartup(WAVERS,&wsadata)!=0)
{
printf("initalize error!\n");
WSACleanup();
exit(1);
}
socket=UDPserver(service);
while(1)
{
alen=sizeof(struct sockaddr);
if((cc=recvfrom(socket,buf,sizeof(buf)-1,0,(struct sockaddr *)&sin,&alen))>0)
{
buf[cc]='\0';
printf("%s",buf);
}
}
closesocket(socket);
exit(0);
}
client 端:
SOCKET UDPconnect(const char *,const char *);
void UDPtest(char *,char *);
#define LINELEN 128
#define WAVERS MAKEWORD(2,0)
void main()
{
char *host="localhost";
char *service="3334";
WSADATA wsadata;
if(WSAStartup(WAVERS,&wsadata)!=0)
{
printf("initalize error!\n");
WSACleanup();
exit(1);
}
UDPtest(host,service);
WSACleanup();
exit(0);
}
void UDPtest(char *host,char *service)
{
char buf[LINELEN+1];
SOCKET s;
int outchars;
s=UDPconnect(host,service);
while(fgets(buf,sizeof(buf),stdin))
{
buf[LINELEN]='\0';
outchars=strlen(buf);
send(s,buf,outchars,0);
if(buf[0]=='\n')
break;
}
closesocket(s);
exit(0);
}
请大家帮忙改一下了。先谢谢了
------解决方案--------------------------------------------------------
你的UDPServer是怎么写的？
------解决方案--------------------------------------------------------
- C/C++ code
// test8.cpp : Defines the entry point for the console application.//#include "stdafx.h"#include <stdlib.h> #include <stdio.h> #include <string.h> #include <winsock.h> SOCKET sockserver(const char *service,const char *transport,int qlen) { //struct servent *servin; //struct protoent *protoin; struct sockaddr_in ipaddr; int sock,type; memset(&ipaddr,0,sizeof(ipaddr)); ipaddr.sin_family=AF_INET; ipaddr.sin_addr.s_addr= htonl( INADDR_ANY ); /* //俺手头没有msdn，这段函数看不懂 if(servin=getservbyname(service,transport)) { ipaddr.sin_port=htons(ntohs((u_short)servin->s_port)); } else if((ipaddr.sin_port=htons((u_short)atoi(service)))==0) { printf("get port number error!\n"); WSACleanup(); exit(1); } if((protoin=getprotobyname(transport))==0) { printf("get protocol information error!\n"); WSACleanup(); exit(1); } */ ipaddr.sin_port = htons( 9999 ); //使用端口9999 if(strcmp(transport,"udp")==0) type=SOCK_DGRAM; else type=SOCK_STREAM; //先改成能够使用的方式 //sock=socket(AF_INET,type,protoin->p_proto); sock=socket(AF_INET,type,IPPROTO_UDP); if(INVALID_SOCKET == sock) { printf("creat socket error!\n"); WSACleanup(); exit(1); } if(bind(sock,(struct sockaddr *)&ipaddr,sizeof(ipaddr))==SOCKET_ERROR) { printf("socket bind error!\n"); WSACleanup(); exit(1); } if(type==SOCK_STREAM) { if(listen(sock,qlen)==SOCKET_ERROR) { printf("socket listen error!\n"); WSACleanup(); exit(1); } } return sock; } SOCKET UDPserver(const char *service) { return sockserver(service,"udp",0); } SOCKET TCPserver(const char *service,int qlen) { return sockserver(service,"tcp",qlen); } #define BUFSIZE (1024)void main() { char *service ="3334"; struct sockaddr_in sin; SOCKET sc; WSADATA wsadata; int alen,cc; char buf[BUFSIZE]; WORD WAVERS = MAKEWORD( 2, 0 ); if(WSAStartup(WAVERS,&wsadata)!=0) { printf("initalize error!\n"); WSACleanup(); exit(1); } sc=UDPserver(service); while(1) { alen=sizeof(struct sockaddr); if((cc=recvfrom(sc,buf,sizeof(buf)-1,0,(struct sockaddr *)&sin,&alen))>0) { buf[cc]='\0'; printf("%s",buf); } } closesocket(sc); exit(0); }