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乱码问题

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乱码问题

发表于：2007-09-18 09:44:38 楼主

按教材上写了个用udp的服务端，运行后发现屏幕直接打出乱码，我看了半天也没发现错在哪，郁闷啊，下面的是代码

#include <winsock2.h>
#include <stdio.h>

void main（)
{
word wversionrequested;
wsadata wsadata;
int err;

wversionrequested = makeword（ 1, 1 );

err = wsastartup（ wversionrequested, &wsadata );
if （ err != 0 ) {
return;
}

if （ lobyte（ wsadata.wversion ) != 1 ¦ ¦
hibyte（ wsadata.wversion ) != 1 ) {
wsacleanup（ );
return;
}

socket socksrv=socket（af_inet,sock_dgram,0);
sockaddr_in addrsrv;
addrsrv.sin_addr.s_un.s_addr=htonl（inaddr_any);
addrsrv.sin_family=af_inet;
addrsrv.sin_port=htons（6000);

bind（socksrv,（sockaddr*)&addrsrv,sizeof（sockaddr));

sockaddr_in addrclient;
int len=sizeof（sockaddr);
char recvbuffer[100];

recvfrom（socksrv,recvbuffer,100,0,（sockaddr*)&addrclient,&len);
printf（ "%s\n ",recvbuffer);
closesocket（socksrv);
wsacleanup（ );
}

发表于：2007-09-20 21:30:381楼得分:0

用watch看的时候是不是乱码?

发表于：2007-10-03 08:44:152楼得分:0

是的，我仔细查了一下，是没有绑定上。我重启机子以后就好了，但是过了一会又坏了，郁闷啊。

发表于：2007-10-05 15:23:003楼得分:0

发送端怎么发得？

发表于：2007-12-28 22:48:584楼得分:0

我也是这个问题啊，苦恼了好久了。先运行服务端，直接就是一串的“烫”，就结束了。根本就没等运行客户端来发送数据。

请问lz说没绑定上是怎么回事啊？

盼望lz把解决办法发给我，谢谢了。邮箱地址：berserker0807@google.com

发表于：2007-12-28 23:14:185楼得分:0

终于解决了我的问题。原来是端口被用了。wsa错误代码是10048。msdn上解释：
wsaeaddrinuse
（10048)
address already in use.
only one usage of each socket address （protocol/ip address/port) is normally permitted. this error occurs if an application attempts to bind a socket to an ip address/port that has already been used for an existing socket, or a socket that wasn't closed properly, or one that is still in the process of closing. for server applications that need to bind multiple sockets to the same port number, consider using setsockopt（so_reuseaddr). client applications usually need not call bind at all - connect will choose an unused port automatically. when bind is called with a wild-card address （involving addr_any), a wsaeaddrinuse error could be delayed until the specific address is "committed." this could happen with a call to other function later, including connect, listen, wsaconnect or wsajoinleaf.

我把端口号换了一个就可以了。开心啊！

发表于：2007-12-30 18:23:046楼得分:0

恭喜楼主

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