所以我在这里做一些客户端服务器的东西,我希望我的服务器监听客户端,当客户端连接到服务器时,客户端发送一个字符串 . 连接 Build ,客户端发送它的字符串,但是,在服务器端,recv()返回-1 .
/* Server */
int main() {
int fd, conn_fd;
struct sockaddr_in ad;
int bytes;
char recv_buffer[256];
fd = socket(AF_INET, SOCK_STREAM, 0);
ad.sin_family = AF_INET;
ad.sin_port = htons(3335);
ad.sin_addr.s_addr = htonl(INADDR_ANY);
bind(fd, (struct sockaddr*)&ad, sizeof(ad));
listen(fd, 5);
conn_fd = accept(fd, (struct sockaddr*)0, 0);
bytes = recv(fd, recv_buffer, sizeof(recv_buffer), 0);
printf("%d\n", bytes);
return 0;
}
客户端只需连接到服务器:/ * Client * /
int main() {
int fd, n;
unsigned int s;
struct sockaddr_in addr;
fd = socket(AF_INET, SOCK_STREAM, 0);
addr.sin_family = AF_INET;
addr.sin_port = htons(3335);
addr.sin_addr.s_addr = inet_addr("127.0.0.1");
char buff[256] = "time";
printf("Connecting to server....\n");
if(connect(fd, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
printf("connect() error.\n");
exit(1);
}
s = send(fd, buff, sizeof(buff), 0);
return 0;
}
谢谢!
1 回答
我发现了问题所在 . 在我的服务器代码中,我使用错误的套接字描述符recv():而不是fd,我应该使用conn_fd .