s5authclient.c

ss5的socks5认扩展认证模块,实现了基本了认证功能,需要的话,可以进行功能增强扩展. 已在Linux下测试通过.

/*
 *
 *  File  : S5AuthClient.c
 *  Author: NieJun
 *  Mail  : [e-mail]
 *  Date  : 2008/10/23
 *
 */

#include "S5AuthClient.h"

char *serv_addr = "127.0.0.1";
int  serv_port  = 1898;

int main(int argc, char **argv, char **envp)
{
    int    sockfd;
    int    conn;
    
    int    send_size = 0;
    int    recv_len;
    char   *pBuf;
    char   name[MAX_NAME_LEN]           = {0};
    char   passwd[MAX_PASSWD_LEN]       = {0};
    char   recv_buffer[MAX_BUFFER_SIZE] = {0};
    char   send_buffer[MAX_BUFFER_SIZE] = {0};
    struct sockaddr_in servaddr;

    unsigned short auth_opt  = 0;
    unsigned char  name_len;
    unsigned char  passwd_len;
    unsigned char  tail = ';';
    

    pBuf = send_buffer;

    if (argc < 3)
    {
        printf("Please input username and password\n");
        exit(1);
    }

    name_len   = sprintf(name, "%s", argv[1]);
    passwd_len = sprintf(passwd, "%s", argv[2]);

    //printf("Name [%s], Password [%s]\n", name, passwd);

    sockfd = socket(AF_INET, SOCK_STREAM, 0);
    memset(&servaddr, 0, sizeof(servaddr));

    servaddr.sin_family = AF_INET;
    servaddr.sin_port   = htons(serv_port);
    inet_pton(AF_INET, serv_addr, &servaddr.sin_addr);

    conn = connect(sockfd, (struct sockaddr *)&servaddr, sizeof(servaddr));

    
    
    //printf("Name len [%d], passwd len [%d]\n", name_len, passwd_len);
    
    auth_opt = 0x0101;  //This tell server user login
    memcpy(pBuf, &auth_opt, sizeof(unsigned short));
    pBuf      += sizeof(unsigned short);
    send_size += sizeof(unsigned short);
    
    memcpy(pBuf, &name_len, sizeof(unsigned char));
    pBuf      += sizeof(unsigned char);
    send_size += sizeof(unsigned char);

    memcpy(pBuf, name, name_len);
    pBuf      += name_len;
    send_size += name_len;

    memcpy(pBuf, &passwd_len, sizeof(unsigned char));
    pBuf      += sizeof(unsigned char);
    send_size += sizeof(unsigned char);

    memcpy(pBuf, passwd, passwd_len);
    pBuf      += passwd_len;
    send_size += passwd_len;

    memcpy(pBuf, &tail, sizeof(unsigned char));
    send_size += sizeof(unsigned char);

    send(sockfd, send_buffer, send_size, 0);

    recv_len = recv(sockfd, recv_buffer, MAX_BUFFER_SIZE, 0);

    if (recv_len <= 0)
    {
        printf("Server not response\n");        
        close(sockfd);
        exit(1);    
    }

    recv_buffer[recv_len] = '\0';

    close(sockfd);

    //printf("Server Res [%s]\n", recv_buffer);
    
    //printf("Send [%s], size [%d], send size [%d]\n", send_buffer, sizeof(send_buffer), send_size);

    printf("%s", recv_buffer);
    
    return 0;

}