頭文件
#include<stdio.h>
#include<stdlib.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
相關(guān)函數(shù)：
socket(); connect(); bind(); listen(); accept(); send(); recv(); close();
socket地址結(jié)構(gòu)體struct sockaddr_in。
服務(wù)器端：
#include<stdio.h>
#include<stdlib.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
int main()
{
? ? int net_socket;
? ? char server_msg[256]="this is msg from server\n";
? ? net_socket = socket(AF_INET,SOCK_STREAM,0);
? ? struct sockaddr_in server_addr;
? ? server_addr.sin_family = AF_INET;
? ? server_addr.sin_port = htons(9000);
? ? server_addr.sin_addr.s_addr = INADDR_ANY;
? ? bind(net_socket,(struct sockaddr *) &server_addr ,sizeof(server_addr));
? ? listen(net_socket,5);
? ? int client_socket;
? ? client_socket = accept(net_socket,NULL,NULL);
? ? send(client_socket,server_msg,sizeof(server_msg),0);
? ? close(net_socket);
? ? return 0;
}
客戶端：
#include<stdio.h>
#include<stdlib.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
int main()
{
? ? int net_socket;
? ? net_socket = socket(AF_INET,SOCK_STREAM,0);
? ? struct sockaddr_in server_addr;
? ? server_addr.sin_family = AF_INET;
? ? server_addr.sin_port = htons(9000);
? ? server_addr.sin_addr.s_addr = INADDR_ANY;
? ? int connection_status = connect(net_socket,(struct sockaddr *) &server_addr ,sizeof(server_addr));
? ? if (connection_status == -1)
? ? {?
? ? ? ? printf("there was an error making a connection to the remote socket\n");? ? }
? ? char server_response[256];
? ? recv(net_socket,&server_response,sizeof(server_response),0);
? ? printf("The server sent the data:%s\n",server_response);
? ? close(net_socket);
? ? return 0;
}
