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大家好,我正在阅读一本关于套接字编程的书,并且有两个代码客户端和服务器。

这是服务器代码

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
void error(char *msg)
{
    perror(msg);
    exit(1);
}
int main(int argc, char *argv[])
{
    int sockfd, newsockfd, portno, clilen;
    char buffer[256];
    struct sockaddr_in serv_addr, cli_addr;
    int n;
    if (argc < 2) {
        fprintf(stderr,"ERROR, no port provided/n");
        exit(1);
    }
    sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if(sockfd < 0)
        error("ERROR OPENING SOCKET");
    bzero((char *) &serv_addr, sizeof(serv_addr));
    portno = atoi(argv[1]);
    serv_addr.sin_family = AF_INET;
    serv_addr.sin_addr.s_addr = INADDR_ANY;
    serv_addr.sin_port = htons(portno);
    if(bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) <0)
        error("ERROR on binding");
    listen(sockfd,5);
    clilen = sizeof(cli_addr);
    newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, &client);
    if(newsockfd < 0)
        error("ERROR ON ACCEPT");
    bzero(buffer,256);
    n = read(newsockfd,buffer,255);
    if(n < 0)
        error("ERROR READING FROM SOCKET");
        printf("HERE IS THE MESSAGE: %s\n",buffer);
        n = write(newsockfd,"I GOT YOUR MESSAGE",18);
        if(n < 0)
            error("ERROR WRITING TO SOCKET");
        return 0;
}

这是客户端代码

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>

void error(char *msg)
{
    perror(msg);
    exit(1);
}
int main(int argc, char *argv[])
{
    int sockfd, portno, n;
    struct sockaddr_in serv_addr;
    struct hostent *server;

    char buffer[256];
    if(argc < 3) {
        fprintf(stderr,"USAGE %s hostname port\n", argv[0]);
    }
    portno = atoi(argv[2]);
    sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if(sockfd < 0)
        error("ERROR OPENING SOCKET");
    server = gethostbyname(argv[1]);
    if(server == NULL) {
        fprintf(stderr,"ERROR no such host\n");
        exit(0);
    }
    bzero((char *) &serv_addr, sizeof(serv_addr));
    serv_addr.sin_family = AF_INET;
    bcopy((char *)server->h_addr, (char *)&serv_addr.sin_addr.s_addr, server->h_length);
    serv_addr.sin_port = htons(portno);
    if(connect(sockfd,&serv_addr,sizeof(serv_addr)) < 0)
        error("ERROR CONECTING");
    printf("Please Enter the message: ");
    bzero(buffer,256);
    fgets(buffer,255,stdin);
    n = write(sockfd,buffer,strlen(buffer));
    if(n < 0)
    error("ERROR READING THE SOCKET");
    printf("%s\n",buffer);
    return 0;
}

但是当我用visual studio或turbo c ++或borland c ++编译它时,他们给了我错误我已经下载了所有必需的头文件,但问题仍然存在。

4

2 回答 2

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问题是您正在阅读标准“BSD”套接字库的示例。Windows 使用稍微不同的套接字库。

对于更通用的方法,您可以将标准 BSD 套接字程序(您在书中阅读的内容)移植到Winsock建议在这里

或者,如果您想在 Windows 中使用套接字兼容系统,您可以从http://cygwin.com/下载 Cygwin并从那里运行您的程序。(请务必在 setup.exe 程序中下载 GCC 编译器等。)

于 2013-07-31T13:27:39.707 回答
1

要在 Windows 中构建它,您需要使用 minGW 或虚拟 linux 系统。

于 2013-07-31T13:23:12.547 回答