C语言聊天室代码(服务端)

{
struct user Send;
strcpy(ername,ername);
closesocket(sockConn);
}
}
for(i=0;i<MAX_CLIENT_NUM;i++)
{
if(Client[i].client!=INVALID_SOCKET&&FD_ISSET(Client[i].client,&rset))
{
{
printf("bind() Failed:%d\n:",WSAGetLastError());
closesocket(ListenSocket);
WSACleanup();
return -1;
}
err=listen(ListenSocket,1);
if(SOCKET_ERROR==err)
// client[i]=INVALID_SOCKET;
}
fd_set rset,allset;
FD_ZERO(&allset);
FD_SET(ListenSocket,&allset);
#define MSG_MAX_SIZE 1024*2 //接收的最大值
while(1)
WSAData wsaData;
int err=WSAStartup(WINSOCK_VERSION,&wsaData);
if(err!=0)
{
return -1;
}
SOCKET ListenSocket=socket(AF_INET,SOCK_STREAM,0);
{
rset=allset;
int ret=select(0,&rset,NULL,NULL,NULL);
if(ret==SOCKET_ERROR)
{
printf("select() failed:%Id\n",WSAGetLastError());
break;
int cmd;
char target_user[20];
char content[50];
};
struct user user;
char *file_name(char *p,struct user user) //生成登陆名.txt文件函数
}
if(ret==0)
{
continue;
}
if(FD_ISSET(ListenSocket,&rset))
{
struct sockaddr_in cliaddr;
int clilen=sizeof(cliaddr);
SOCKET sockConn=accept(ListenSocket,(sockaddr*)&cliaddr,&clilen);
memset(&user,0,1);
int nByte=recv(Client[i].client,(char*)&user,sizeof(user),0);
strcpy(Client[i].username,ername);
printf("Have Message From Client[%d]:%s\n",i,Client[i].username);
{
send(sockfd,"right",5,0);
strcpy(buf,ername);
buf[strlen(buf)]='\0';
int i = fprintf(fp,"%s",buf);
memset(buf,0,sizeof(buf));
if(INVALID_SOCKET==ListenSocket)
{
printf("socket() Failed:%d\n",WSAGetLastError());
WSACleanup();
return -1;
}
sockaddr_in service;
service.sin_family=AF_INET;
{
send(sockfd,"wrong",5,0);
fclose(fp);
break;
}
if (strncmp(p,buf_fp,strlen(buf)) == 0)
{
send(sockfd,"ok",2,0);
fclose(fp);
{
int i = 0;
int username_len;
username_len = strlen(ername);
strcpy(p,ername);
strcat(p,".txt");
return p;
service.sin_port=htons(20000);
service.sin_addr.s_addr=htonl(INADDR_ANY);
err=bind(ListenSocket,(sockaddr*)&service,sizeof(service));
if(SOCKET_ERROR==err)
break;
}
if (strncmp(ername,buf_fp,strlen(ername)) == 0)
{
send(sockfd,"wrong",5,0);
break;
}
}
}
strcpy(buf,ername);
buf[username_len] = ':';
buf[username_len+1] = '\0';
char *p=strcat(buf,user.password);
p[strlen(p)]='\0';
FILE *fp;
}
void resign(SOCKET sockfd,struct user user) //注册函数
{
int username_len;
char buf[50];
char buf_fp[50];
FILE *fp;
if((fp=fopen("resign.txt","a+"))==NULL)
/* server.c */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include<Winsock2.h>
#include<process.h>
#pragma comment(lib,"ws2_32.lib")
#include<windows.h>
if((fp=fopen("resign.txt","rபைடு நூலகம்"))==NULL)
{
perror("open resign.txt failed !\n");
exit(1);
}
//printf("%s",p);
while(1)
{
if ((fgets(buf_fp,sizeof(buf_fp),fp)) == NULL)
void login(SOCKET sockfd,struct user user) //登陆函数
{
char buf_fp[100];
char buf[100];
int username_len = strlen(ername);
{
printf("listen() Failed:%d\n",WSAGetLastError());
closesocket(ListenSocket);
WSACleanup();
return -1;
}
#define MAX_CLIENT_NUM 63
struct Client_userName Client[MAX_CLIENT_NUM];
{
Client[i].client=sockConn;
break;
}
}
if(i<MAX_CLIENT_NUM)
{
FD_SET(sockConn,&allset);
}
else{
printf("too many clients");
#define LIST 11 //表示显示所有在线不隐身用户
#define EXIT 12 //退出客户端
struct user
{
char username[50];
char password[50];
{
perror("open resign.txt failed !\n");
exit(1);
}
username_len = strlen(ername);
while(1)
{
if ((fgets(buf_fp,sizeof(buf_fp),fp)) == NULL)
if(user.cmd==REG)
{
resign(Client[i].client,user);