server.c

一个网络传输文件程序

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include "server_send_receive.h"
#define SERV_PORT 8888

int main(int argc, char **argv)
{
	int listenfd,connfd;
	struct sockaddr_in servaddr,cliaddr;
	socklen_t cliaddr_len;
	char str[INET_ADDRSTRLEN];

	listenfd = socket(AF_INET, SOCK_STREAM, 0);

	bzero(&servaddr, sizeof(servaddr));
	servaddr.sin_family = AF_INET;
	servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
	servaddr.sin_port=htons(SERV_PORT);

	bind(listenfd, (struct sockaddr *)&servaddr, sizeof(servaddr));

	listen(listenfd, 20);

	printf("Acceptint connections...\n");

	while(1){
		cliaddr_len = sizeof(cliaddr);
		connfd = accept(listenfd, (struct sockaddr *)&cliaddr, &cliaddr_len);

		printf("received from %s at PORT %d\n",
			   inet_ntop(AF_INET, &cliaddr.sin_addr,str,sizeof(str)),
			   ntohs(cliaddr.sin_port));
		
		server_send_receive(connfd);
		close(connfd);
	}
	return 0;
}