我在使用套接字创建第一个服务器 - 客户端应用程序时遇到了一些问题。我已将服务器的套接字地址硬编码到localhost,将端口硬编码为55555.当我尝试从单独的终端中的客户端连接到它时,键入命令./player localhost 55555,服务器没有任何反应。我认为应该发生的是服务器接收的数据是" Rock"然后打印"客户:准备好。\ n \ n \ n \ n \ n客户:Rock"。相反,服务器继续等待,对玩家没有反应。我怀疑我还没有真正连接到服务器,所以我试图硬编码套接字地址" localhost"进入播放器连接,以及55555的端口(也硬编码)。我尝试运行命令./player并且它喷出了#34; Connect:Connection Refused"。我想知道如何修复我的硬编码播放器。
referee.c (这是服务器)
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
int main(int argc, const char* argv[])
{
char buf[1024];
struct sockaddr_in localhost;
int listenSock, serviceSock, bytesRead;
size_t len = sizeof(localhost);
int port = 55555;
listenSock = socket(AF_INET, SOCK_STREAM, 0);
if (listenSock<0) {
perror("Socket");
exit(1);
}
bzero((char*)&localhost, len);
localhost.sin_family = AF_INET;
localhost.sin_addr.s_addr = htonl(INADDR_ANY);
localhost.sin_port = htons(port);
bind(listenSock, (struct sockaddr*) &localhost, len);
printf("Paper, Scissors, Rock game start.\nWaiting for player...\n");
listen(listenSock, 5);
do {
serviceSock = accept(listenSock, 0, 0);
if(serviceSock == -1){
perror("Accept");
}
else do {
bzero(buf, sizeof(buf));
if((bytesRead = read(serviceSock, buf, 1024))<0) {
perror("Read");
}
if(bytesRead > 0){
printf("Client: ready.\nGo\n Client: %s\n", buf);
}
} while (bytesRead != 0);
close(serviceSock);
} while(1);
}
player.c (客户端)
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
#include <strings.h>
#include <string.h>
#include <stdlib.h>
int main(int argc, char* argv[]) {
int sock;
struct sockaddr_in server;
struct hostent *hp;
char buf[1024], *data = "Rock";
sock = socket(AF_INET, SOCK_STREAM, 0);
if (sock < 0) {
perror("Socket");
exit(1);
}
server.sin_family = AF_INET;
hp = gethostbyname(argv[1]);
if (hp == 0) {
fprintf( stderr, "%s: unknown host", argv[1] );
exit(1);
}
bcopy( hp->h_addr, &server.sin_addr, hp->h_length );
server.sin_port = htons(atoi(argv[2]));
if(connect(sock, (struct sockaddr *) &server, sizeof(server)) < 0) {
perror("Connect");
exit(1);
}
if(write(sock, data, strlen(data)) < 0) {
perror("Write");
}
close(sock);
}
带有硬编码地址/端口的player.c
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
#include <strings.h>
#include <string.h>
#include <stdlib.h>
int main(int argc, char* argv[]) {
int sock;
struct sockaddr_in server;
struct hostent *hp;
char buf[1024], *data = "Rock";
sock = socket(AF_INET, SOCK_STREAM, 0);
if (sock < 0) {
perror("Socket");
exit(1);
}
server.sin_family = AF_INET;
hp = gethostbyname("localhost");
if (hp == 0) {
fprintf( stderr, "%s: unknown host", argv[1] );
exit(1);
}
bcopy( hp->h_addr, &server.sin_addr, hp->h_length );
server.sin_port = 55555;
if(connect(sock, (struct sockaddr *) &server, sizeof(server)) < 0) {
perror("Connect");
exit(1);
}
if(write(sock, data, strlen(data)) < 0) {
perror("Write");
}
close(sock);
}
答案 0 :(得分:1)
这是错误的:
server.sin_port = 55555;
应该是:
server.sin_port = htons(55555);
答案 1 :(得分:0)
更改
server.sin_port = 55555;
到:
server.sin_port = htons(55555);
正在工作。