client.c

用于发送发送指令到服务器

/*
 * =====================================================================================
 *
 *       Filename:  server.c
 *
 *    Description:  This program is used to send command
 *
 *        Version:  1.0
 *        Created:  04/04/2009 01:01:02 AM
 *       Revision:  none
 *       Compiler:  gcc
 *
 *         Author:  Shan Yafeng
 *        Company:  
 *
 * =====================================================================================
 */
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <errno.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>

#define PORT	20001
#define MAXSIZE 255
#define back_log 5
#define cmd_size 15
#define	path_size 30

int main(){
	int socket_fd,newfd;
	struct sockaddr_in host,client;
	int len=sizeof(struct sockaddr);
	char cmd[cmd_size],path[path_size],buf[MAXSIZE];
	char cmd_total[MAXSIZE];
	FILE *popen_fd;
	int size;


	if ((socket_fd=socket(AF_INET,SOCK_STREAM,0))<0){
		perror("Socket");
		exit(1);
	}
	bzero(&host,sizeof(struct sockaddr));
	bzero(&client,sizeof(struct sockaddr));
	host.sin_family=AF_INET;
	host.sin_port=htons(PORT);
	host.sin_addr.s_addr=INADDR_ANY;

	if (bind(socket_fd,(struct sockaddr *)&host,sizeof(struct sockaddr))<0){
		perror("Bind");
		exit(1);
	}

	if (listen(socket_fd,back_log)<0){
		perror("Listen");
		exit(1);
	}
	printf("Listening....\n");
	while(1){
		while((newfd=accept(socket_fd,(struct sockaddr *)&client,&len))<0){}
		printf("Connection Finished\n");
		printf("Connect from:%s:%d\n",inet_ntoa(client.sin_addr),ntohs(client.sin_port));

		memset(cmd,0,cmd_size);
		memset(path,0,path_size);
/*		if (fscanf(newfd,"%s%s",cmd,path)<0){
			perror("Fscanf");
			exit(1);
		}
*/
//		cmd[0]='l';cmd[1]='s';
//		path[0]='/';path[1]='p';path[2]='r';path[3]='o';path[4]='c';
//		memset(cmd_total,0,MAXSIZE);
//		if (sprintf(cmd_total,"%s %s",cmd,path)<0){
//			perror("sprintf");
//			exit(1);
//		}
		memset(cmd_total,0,MAXSIZE);
		while(recv(newfd,cmd_total,MAXSIZE-1,0)<0){};
		printf("%s\n",cmd_total);
		if((popen_fd=popen(cmd_total,"r"))<0){
			perror("Popen");
			exit(1);
		}
		memset(buf,0,MAXSIZE);
//	size=fread(buf,MAXSIZE-1,1,popen_fd);
//	printf("%s\n",buf);
	while ((size=fread(buf,MAXSIZE-1,1,popen_fd))!=0){
		if (size>0){
			send(newfd,buf,strlen(buf),MSG_DONTWAIT);
			printf("%s",buf);
			memset(buf,0,MAXSIZE);
		}

	}
	if(strlen(buf)>1){
			buf[strlen(buf)-1]=0;
			send(newfd,buf,strlen(buf),MSG_DONTWAIT);
			printf("%s",buf);
	}
	fflush;
		
		printf("\nCmd have done\n");
//		close(newfd);
	}
	sleep(8);
	return 0;
}