456

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <unistd.h>

#include <sys/socket.h>

#include <arpa/inet.h>

int main(int argc,char * argv[])

{

int sock;

char buf[20];

struct sockaddr_in serv_adr;

if(argc != 3)

{

printf("请重新运行程序，输入 “IP地址” 和 “端口号” ！～\n");

exit(1);

}

sock = socket(PF_INET,SOCK_STREAM,0);

memset(&serv_adr,0,sizeof(serv_adr));

serv_adr.sin_family = AF_INET;

serv_adr.sin_addr.s_addr = inet_addr(argv[1]);

serv_adr.sin_port = htons(atoi(argv[2]));

connect(sock,(struct sockaddr *)&serv_adr,sizeof(serv_adr));

read(sock,buf,sizeof(buf)-1);

printf("%s\n", buf);

close(sock);

return 0;

}

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原文：http://aimoer.blog.51cto.com/12444596/1886374