做网站如何选主机,平面设计师常用的素材网站,创建网站怎么创,档案网站开发服务端 网络编程中服务端接受连接的套接字创建过程如下: 1.调用socket函数创建套接字 2.调用bind函数分配IP地址和端口号 3.调用listen函数转为可接收请求状态 4.调用accept函数受理连接请求 #include stdio.h
#include stdlib.h
#include sys/types.h… 服务端 网络编程中服务端接受连接的套接字创建过程如下: 1.调用socket函数创建套接字 2.调用bind函数分配IP地址和端口号 3.调用listen函数转为可接收请求状态 4.调用accept函数受理连接请求 #include stdio.h
#include stdlib.h
#include sys/types.h
#include sys/socket.h
#include arpa/inet.h
#include string.h
#include unistd.hvoid error_handing(char* messgae);void error_handing(char* message)
{fputs(message, stderr);fputc(\n, stderr);exit(1);
}int main(int argc, char*argv[])
{int serv_sock; // 服务端socketint clnt_sock;struct sockaddr_in serv_addr;struct sockaddr_in clnt_addr;char message[] helloworld!;if (argc ! 2){printf(Usage: %sport\n, argv[0]);exit(1);}serv_sock socket(PF_INET, SOCK_STREAM, 0);if (serv_sock -1){error_handing(socket() error);}bzero(serv_addr, sizeof(serv_addr));serv_addr.sin_family AF_INET;serv_addr.sin_addr.s_addr htonl(INADDR_ANY);serv_addr.sin_port htons(atoi(argv[1]));if(bind(serv_sock, (struct sockaddr*)serv_addr, sizeof(serv_addr)) -1){error_handing(bind() error);}if(listen(serv_sock, 5) -1){error_handing(listen() error);}socklen_t clnt_addr_len sizeof(clnt_addr);clnt_sock accept(serv_sock, (struct sockaddr*)clnt_addr, clnt_addr_len);if (clnt_sock -1){error_handing(accept() error);}write(clnt_sock, message, sizeof(message));close(serv_sock);close(clnt_sock);return 0;
}
客户端 1.创建客户端套接字 2.连接服务端 #include stdio.h
#include stdlib.h
#include sys/types.h
#include sys/socket.h
#include arpa/inet.h
#include string.h
#include unistd.hvoid error_handing(char* messgae);void error_handing(char* message)
{fputs(message, stderr);fputc(\n, stderr);exit(1);
}int main(int argc, char*argv[])
{int sock;struct sockaddr_in serv_addr;char message[30];int str_len;if(argc ! 3){printf(Usage : %sIPport\n, argv[0]);exit(1);}sock socket(PF_INET, SOCK_STREAM, 0);if(sock -1){error_handing(socket() error);}bzero(serv_addr, sizeof(serv_addr));serv_addr.sin_family AF_INET;serv_addr.sin_addr.s_addr inet_addr(argv[1]);serv_addr.sin_port htons(atoi(argv[2]));if (connect(sock, (struct sockaddr*)serv_addr, sizeof(serv_addr)) -1){error_handing(connect() error);}str_len read(sock, message, sizeof(message)-1);if (str_len -1){error_handing(read() error);}printf(message from server: %s\n, message);close(sock);return 0;
}
运行结果
