c284eb4e38
git-svn-id: svn+ssh://svn.berlios.de/svnroot/repos/libssh/trunk@143 7dcaeef0-15fb-0310-b436-a5af3365683c
156 строки
5.0 KiB
C
156 строки
5.0 KiB
C
/* sshd.c */
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/* yet another ssh daemon (Yawn!) */
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/*
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Copyright 2004 Aris Adamantiadis
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This file is part of the SSH Library
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The SSH Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The SSH Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the SSH Library; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA. */
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#include <libssh/libssh.h>
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#include <libssh/server.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#ifdef _WIN32
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#define KEYS_FOLDER
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#else
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#define KEYS_FOLDER "/etc/ssh/"
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#endif
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int auth_password(char *user, char *password){
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if(strcmp(user,"aris"))
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return 0;
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if(strcmp(password,"lala"))
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return 0;
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return 1; // authenticated
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}
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int main(int argc, char **argv){
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SSH_OPTIONS *options=ssh_options_new();
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SSH_SESSION *session;
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SSH_BIND *ssh_bind;
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SSH_MESSAGE *message;
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CHANNEL *chan=0;
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int auth=0;
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int sftp=0;
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int i;
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ssh_options_getopt(options,&argc,argv);
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ssh_options_set_dsa_server_key(options,"/etc/ssh/ssh_host_dsa_key");
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ssh_options_set_rsa_server_key(options,"/etc/ssh/ssh_host_rsa_key");
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ssh_bind=ssh_bind_new();
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ssh_bind_set_options(ssh_bind,options);
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if(ssh_bind_listen(ssh_bind)<0){
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printf("Error listening to socket: %s\n",ssh_get_error(ssh_bind));
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return 1;
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}
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session=ssh_bind_accept(ssh_bind);
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if(!session){
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printf("error accepting a connection : %s\n",ssh_get_error(ssh_bind));
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return 1;
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}
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printf("Socket connecté : %d\n",ssh_get_fd(session));
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if(ssh_accept(session)){
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printf("ssh_accept : %s\n",ssh_get_error(session));
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return 1;
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}
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do {
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message=ssh_message_get(session);
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if(!message)
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break;
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switch(ssh_message_type(message)){
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case SSH_AUTH_REQUEST:
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switch(ssh_message_subtype(message)){
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case SSH_AUTH_PASSWORD:
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printf("User %s wants to auth with pass %s\n",
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ssh_message_auth_user(message),
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ssh_message_auth_password(message));
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if(auth_password(ssh_message_auth_user(message),
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ssh_message_auth_password(message))){
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auth=1;
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ssh_message_auth_reply_success(message,0);
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break;
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}
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// not authenticated, send default message
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case SSH_AUTH_NONE:
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default:
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ssh_message_auth_set_methods(message,SSH_AUTH_PASSWORD);
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ssh_message_reply_default(message);
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break;
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}
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break;
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default:
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ssh_message_reply_default(message);
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}
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ssh_message_free(message);
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} while (!auth);
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if(!auth){
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printf("error : %s\n",ssh_get_error(session));
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ssh_finalize();
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return 1;
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}
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do {
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message=ssh_message_get(session);
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if(message){
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switch(ssh_message_type(message)){
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case SSH_CHANNEL_REQUEST_OPEN:
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if(ssh_message_subtype(message)==SSH_CHANNEL_SESSION){
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chan=ssh_message_channel_request_open_reply_accept(message);
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break;
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}
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default:
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ssh_message_reply_default(message);
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}
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ssh_message_free(message);
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}
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} while(message && !chan);
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if(!chan){
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printf("error : %s\n",ssh_get_error(session));
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ssh_finalize();
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return 1;
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}
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do {
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message=ssh_message_get(session);
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if(message && ssh_message_type(message)==SSH_CHANNEL_REQUEST &&
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ssh_message_subtype(message)==SSH_CHANNEL_REQUEST_SHELL){
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// if(!strcmp(ssh_message_channel_request_subsystem(message),"sftp")){
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sftp=1;
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ssh_message_channel_request_reply_success(message);
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break;
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// }
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}
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if(!sftp){
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ssh_message_reply_default(message);
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}
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ssh_message_free(message);
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} while (message && !sftp);
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if(!sftp){
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printf("error : %s\n",ssh_get_error(session));
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return 1;
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}
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printf("it works !\n");
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BUFFER *buf=buffer_new();
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do{
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i=channel_read(chan,buf,0,0);
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if(i>0)
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write(1,buffer_get(buf),buffer_get_len(buf));
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} while (i>0);
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ssh_disconnect(session);
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ssh_finalize();
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return 0;
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}
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