Created
September 11, 2012 01:05
-
-
Save kelvin-fly/3695217 to your computer and use it in GitHub Desktop.
in b/s. the client
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include <stdio.h> | |
| #include <string.h> | |
| #include <sys/socket.h> | |
| #include <unistd.h> | |
| #include <netinet/in.h> | |
| #include <sys/stat.h> | |
| #include <stdlib.h> | |
| #include <arpa/inet.h> | |
| #define REMOTE_PORT 1234 | |
| #define MAX_LEN 512 | |
| int main(int argc,char **argv) | |
| { | |
| int sock_fd,ret; | |
| int len; | |
| char buf[MAX_LEN]; | |
| struct sockaddr_in local_addr, remote_addr; | |
| sock_fd = socket(AF_INET,SOCK_STREAM,0); | |
| if(sock_fd<0) | |
| { | |
| perror("socket()"); | |
| return sock_fd; | |
| } | |
| local_addr.sin_family = AF_INET; | |
| local_addr.sin_port = htons(0); //select port random!! not 0 port! | |
| local_addr.sin_addr.s_addr = htonl(INADDR_ANY); //automatic ip capture | |
| remote_addr.sin_family = AF_INET; | |
| remote_addr.sin_port = htons(REMOTE_PORT); | |
| ret = inet_aton("127.0.0.1",&remote_addr.sin_addr); | |
| ret = bind(sock_fd,(struct sockaddr *)&local_addr,sizeof(local_addr)); | |
| if(ret<0) | |
| { | |
| perror("bind()!"); | |
| close(sock_fd); | |
| return ret; | |
| } | |
| ret = connect(sock_fd,(struct sockaddr *)&remote_addr,(socklen_t)sizeof(remote_addr)); | |
| if(ret<0) | |
| { | |
| perror("connect()"); | |
| close(sock_fd); | |
| return ret; | |
| } | |
| memset(buf,0,MAX_LEN); | |
| while(1) | |
| { | |
| int i; | |
| len = send(sock_fd,"hello",6,0); | |
| if(len<=0) | |
| { | |
| perror("send()"); | |
| close(sock_fd); | |
| return ret; | |
| } | |
| sleep(1); | |
| len = recv(sock_fd,buf,MAX_LEN,0); | |
| if(len<=0) | |
| { | |
| perror("recv()"); | |
| close(sock_fd); | |
| return ret; | |
| } | |
| for(i = 0;i< len; i++) | |
| { | |
| printf("%c",buf[i]); | |
| } | |
| printf("\n"); | |
| } | |
| close(sock_fd); | |
| return 0; | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment