系统：fedora core 5
服务器端程序：
/* server */
#include <stdio.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <netdb.h>
#include <unistd.h>
#include <string.h>
#include <arpa/inet.h>
#define PORT 8848
#define BACKLOG 1
main()
{
int listenfd,connectfd;
struct sockaddr_in server;
struct sockaddr_in client;
int sin_size;
if (( listenfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
perror("Creating socket failed.");
return 0;
}
int opt = SO_REUSEADDR;
setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
bzero(&server,sizeof(server));
server.sin_family = AF_INET;
server.sin_port = htons(PORT);
server.sin_addr.s_addr = htonl(INADDR_ANY);
printf("binding... ");
if(bind(listenfd, (struct sockaddr *)&server, sizeof(struct sockaddr)) == -1) {
perror("Bind error");
return 0;
}
printf("listen... ");
if(listen(listenfd,BACKLOG) == -1){
perror("listen()
