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include

include

include

include

include

include

include

include

include

define MAX_LISTEN_QUE 5

server.c

include "socket_includes.h"

int main(int argc, char *argv[]) { int listenfd, sockfd, opt = 1; struct sockaddr_in server, client; char buf[200]; socklen_t len; time_t timep; int ret;

listenfd = socket(AF_INET, SOCK_STREAM, 0);

if(listenfd < 0){ perror("Create socket fail."); return -1; }

if((ret = setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt))) < 0){
    perror("Error, set socket reuse addr failed");  
    return -1;

}

bzero(&server, sizeof(server));

server.sin_family = AF_INET; server.sin_port = htons(8888); server.sin_addr.s_addr = htonl(INADDR_ANY);

len = sizeof(struct sockaddr);

if(bind(listenfd, (struct sockaddr *)&server, len)<0){ perror("bind error."); return -1; }

listen(listenfd, MAX_LISTEN_QUE);

while(1)
{
    sockfd = accept(listenfd, (struct sockaddr *)&client, &len);
  if(sockfd < 0){
            perror("accept error.");
            return -1;
  }
    timep = time(NULL);
    snprintf(buf, sizeof(buf), "%s", ctime(&timep));
    write(sockfd, buf, strlen(buf));
    printf("Bytes:%lu
", strlen(buf));
    printf("sockfd=%d
", sockfd);
    close(sockfd);
}
return 0;

}

include "socket_includes.h"

int main(int argc, char *argv[]) { int sockfd; struct sockaddr_in servaddr; char buf[100]; int bytes;

if(( sockfd = socket(AF_INET,SOCK_STREAM,0)) < 0 )
{
    perror("socket error");
    return -1;
}

bzero(&servaddr, sizeof(servaddr));
servaddr.sin_family     =       AF_INET;
servaddr.sin_addr.s_addr=       inet_addr("127.0.0.1");
servaddr.sin_port       =       htons(8888);

if( connect(sockfd,(struct sockaddr*)&servaddr,sizeof(servaddr)) < 0 )
{
    perror("connect error");
    return 0;
}

bytes = read(sockfd, buf, 100);
if(bytes < 0){
    printf("Error, read failed.
");
    return -1;
    }

if(0 == bytes){
    printf("Server close connection.
");
    return -1;
    }

printf("Read bytes %d
", bytes);
printf("Time:%s
", buf);

close(sockfd);

}