php通过socket和c通讯

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php通过socket和c通讯 2006-03-31 09:13:05

分类：

php和c通过socket通信

/*server.c*/
#include
#include
#include
#include
#include
#include
#include
#include
#include

main(){
    int sock;
    struct sockaddr_in server,client;
    int recvd,snd;
    int structlength;
    char * server_ip = "128.168.10.1";/*server ip address*/
    int port = 8888;
    char recvbuf[2000],sendbuf[2000];

    char str1[]="I have received: ";

    memset((char *)&server,0,sizeof(server));
    server.sin_family = AF_INET;
    server.sin_addr.s_addr = inet_addr(server_ip);
    server.sin_port = htons(port);

    memset((char *)&client,0,sizeof(client));
    client.sin_family = AF_INET;
    client.sin_addr.s_addr = htonl(INADDR_ANY);
    client.sin_port = htons(port);


    if((sock = socket (AF_INET,SOCK_DGRAM,0)) < 0 ){
        printf("socket create error! ");
        exit(1);
    }


    structlength = sizeof(server);
    if( bind(sock,(struct sockaddr *) &server,structlength) < 0){
        printf("socket bind error! ");
        perror("bind");
        exit(1);
    }

    while(1){
        structlength = sizeof(client);

        printf("waiting....... ");
        recvd = recvfrom(sock,recvbuf,sizeof(recvbuf),0,
            (struct sockaddr *) & client,&structlength);
        if(recvd < 0){
            perror("recvfrom");
            exit(EXIT_FAILURE);
        }
        else{
            printf("received:%s ",recvbuf);

            memset(sendbuf,0,strlen(sendbuf));
            memcpy(sendbuf,str1,strlen(str1));

            snd = sendto(sock,sendbuf,strlen(str1),0,
            (struct sockaddr *) &client,structlength);

            if(snd < 0){
            perror("sendto");
            exit(1);
            }
            printf("sendok! ");

        }


    }

    close(sock);
}
/*
gcc -o server server.c生成server程序，在服务器端运行./server
*/

/*client.php*/

$server_ip="128.168.10.1";
$port = 8888;

$sock=@socket_create(AF_INET,SOCK_DGRAM,0);

if(!$sock){

    echo "socket create failure";

}

if($buf=="")

    $buf="hello,how are you! ";

if(!@socket_sendto($sock,$buf,strlen($buf),0,"128.168.10.1",8888)){

    echo "send error ";

    socket_close($sock);

    exit();

}

$buf="";
$msg="";

if(!@socket_recvfrom($sock,$msg,256,0,&$server_ip,&$port)){

    echo "recvieve error!";

    socket_close($sock);

    exit();

}

echo trim($msg)." ";

socket_close($sock);

?>

/*这个过程很简单，就是客户端提交一个信息，服务端接收，
并返回给客户端一个"接收到"的确认信息。
*/

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