该楼层疑似违规已被系统折叠 隐藏此楼查看此楼

客户端：include

#include

#include

#include

#include

#include

#include

#include

#include

#define SERVPORT 1234

#define MAXDATASIZE 1000 /**/ int main(int argc, char *argv[])

{

int sockfd, recvbytes;

int client_fd;

char buf[MAXDATASIZE];

struct hostent *host;

struct sockaddr_in serv_addr;

if(argc < 2)

{

fprintf(stderr,"Please enter the server's hostname!\n ");

exit(1);

}

if((host=gethostbyname(argv[1]))==NULL)

{

herror("gethostbyname error!");

exit(1);

}

if((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)

{

perror("socket creat error!");

exit(1);

}

bzero(&serv_addr, sizeof (serv_addr));

serv_addr.sin_family=AF_INET;

serv_addr.sin_port=htons(SERVPORT);

serv_addr.sin_addr = *((struct in_addr *)host->h_addr);

// bzero(&serv_addr, sizeof (serv_addr));

if(connect(sockfd, (struct sockaddr *)&serv_addr,

sizeof(struct sockaddr)) == -1)

{

perror("connect error!");

exit(1);

}

while(1)

{

if(send(sockfd, "Hello, you are connected! ", 26, 0) == -1)

{ perror("send error !");}

}

close(sockfd);

return 0;

}

服务器端：

#include

#include

#include

#include

#include

#include

#include

#include

#include

#define SERVPORT 1234 //**//

#define BACKLOG 10 //* *//

#define MAXDATASIZE 1000

int main(void)

{

int sockfd;

int client_fd,recvbytes;

char buf[MAXDATASIZE];

socklen_t sin_size;

struct sockaddr_in my_addr; /* local IP addr*/

//struct sockaddr_in remote_addr; /*clint IP addr*/

if((sockfd=socket(AF_INET, SOCK_STREAM, 0)) == -1)

{

perror("socket creat error!");

exit(1);

}

bzero(&my_addr, sizeof (my_addr));

my_addr.sin_family=AF_INET;

my_addr.sin_port=htons(SERVPORT);

my_addr.sin_addr.s_addr = INADDR_ANY;

if(bind(sockfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr)) == -1)

{

perror("bind error!");

exit(1);

}

if(listen(sockfd, BACKLOG) == -1)

{

perror("listen error !");

exit(1);

}

while(1)

{

sin_size = sizeof(struct sockaddr_in);

if((client_fd = accept(sockfd, (struct sockaddr *)&my_addr, &sin_size)) == -1)

{

perror("accept error");

continue;

}

} while (1)

{

printf("ok\n");

if((recvbytes=recv(sockfd, buf, MAXDATASIZE, 0)) ==-1)

{

perror("recv error!");

exit(1);

}

buf[recvbytes] = '\0';

printf("Received: %s\n",buf);

} close(client_fd);

}

初学socket，请高人指点错误，现在不提示错误，但是接受不到东西