chartDemo

    想用C语言想做一个类似mina 的框架，今天先到这里以后更新,目前刚调通

#include <stdio.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <string.h>
#include <netinet/in.h>
#include <unistd.h>
#include <stdlib.h>
#include <arpa/inet.h>

#define MAXN 4096

int main(void){
	struct sockaddr_in A ,B ;
	char meg[MAXN];
	char rev[MAXN];
	socklen_t len;
	int s_socket,socket_conn;
	s_socket=socket(AF_INET,SOCK_STREAM,0);
	if(s_socket < 0){
		printf("create socket failed\n");
		return 1;
	}
	
	A.sin_family = AF_INET ;  
        A.sin_port = htons(1234);  
        
        A.sin_addr.s_addr = htonl(INADDR_ANY) ;   
        bind(s_socket ,(struct sockaddr *)&A,sizeof(A));          
        listen(s_socket,5);                               
        printf("Server is Waiting ...\n");            
        len = sizeof(struct sockaddr_in) ;    
        socket_conn = accept(s_socket,(struct sockaddr *)&B ,&len);  

	if(socket_conn >= 0){  
            printf("get a connect\n");
            while(1){                                         
                fgets(meg,MAXN,stdin);   
                len = strlen(meg);  
                if(meg[len-1] == '\n') 
			meg[len-1] = 0 ;  
                int ret=send(socket_conn,meg,strlen(meg)+1,0);            
		if(ret==-1){
			printf("send error\n");
			break;
		}
                printf("send %d bytes\n",len);
                if(strcmp(meg,"quit") == 0){  
                    printf("Server is cancelling the communication!\n");  
                    break ;  
                }  
                recv(socket_conn,rev,MAXN,0);                         
                if(strcmp(rev,"quit")==0){  
                    printf("Client is cancelling the communication!\n");  
                    break ;  
                }  
                printf("receive %d bytes : %s\n",strlen(rev),rev);
            }  
            close(socket_conn) ;                          
    }  
    else{  
        printf("Faile to aceept!\n");  
    }  
    close(s_socket);                                  
    return 0;  	
}