1)、int socket(int family, int type, int protocol); socket() 打开一个网络通讯端口,如果成功的话,就像 open() 一样返回一个文件描述符,应用程序可以像读写文件一样用 read/write 在网络上收发数据,如果 socket() 调用出错则返回-1。对于 IPv4,family 参数指定为 AF_INET。 对于TCP 协议,type 参数指定...
exit(0); }/*本次通信结束,循环下一个*/close(new_fd); }/*关闭当前连接*/close(sockfd);return0; } 客户端代码 #include <stdio.h>#include<stdlib.h>#include<errno.h>#include<string.h>#include<netdb.h>#include<sys/types.h>#include<netinet/in.h>#include<sys/socket.h>#include<arpa/in...
sockfd = socket(AF_INET, SOCK_DGRAM, 0); if (sockfd < 0) { fprintf(stderr, "socket failed\n"); exit(EXIT_FAILURE); } addrlen = sizeof(struct sockaddr_in); bzero(&addr, addrlen); addr.sin_family = AF_INET; addr.sin_addr.s_addr = htonl(INADDR_ANY); addr.si...
1/*File Name: client.c*/23#include<stdio.h>4#include<stdlib.h>5#include<string.h>6#include<errno.h>7#include<sys/types.h>8#include<sys/socket.h>9#include<netinet/in.h>1011#defineMAXLINE 4096121314intmain(intargc,char**argv)15{16intsockfd, n,rec_len;17inti_port =8000;//默认8000...
(socket_fd = socket(AF_INET, SOCK_STREAM,0)) == -1)//初始化Socket17{18printf("create socket error: %s(errno: %d)\n",strerror(errno),errno);19exit(0);20}21//初始化22memset(&servaddr,0,sizeof(servaddr));23servaddr.sin_family =AF_INET;24servaddr.sin_addr.s_addr = htonl(IN...
Linux 简单socket实现UDP通信 服务器端 #include <stdio.h>#include<stdlib.h>#include<sys/types.h>#include<sys/socket.h>#include<string.h>#include<netinet/in.h>#defineMAXLINE 80#defineSERV_PORT 8888voiddo_echo(intsockfd,structsockaddr *pcliaddr, socklen_t client )...
(socket_fd = socket(AF_INET, SOCK_STREAM,0)) == -1)//初始化Socket17{18printf("create socket error: %s(errno: %d)\n",strerror(errno),errno);19exit(0);20}21//初始化22memset(&servaddr,0,sizeof(servaddr));23servaddr.sin_family =AF_INET;24servaddr.sin_addr.s_addr = htonl(IN...