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68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/*
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* connect_ssh.c
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* This file contains an example of how to connect to a
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* SSH server using libssh
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*/
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/*
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Copyright 2009 Aris Adamantiadis
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This file is part of the SSH Library
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You are free to copy this file, modify it in any way, consider it being public
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domain. This does not apply to the rest of the library though, but it is
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allowed to cut-and-paste working code from this file to any license of
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program.
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The goal is to show the API in action. It's not a reference on how terminal
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clients must be made or how a client should react.
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*/
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#include <libssh/libssh.h>
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#include "examples_common.h"
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#include <stdio.h>
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ssh_session connect_ssh(const char *host, const char *user,int verbosity){
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ssh_session session;
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int auth=0;
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session=ssh_new();
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if (session == NULL) {
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return NULL;
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}
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if(user != NULL){
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if (ssh_options_set(session, SSH_OPTIONS_USER, user) < 0) {
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ssh_free(session);
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return NULL;
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}
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}
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if (ssh_options_set(session, SSH_OPTIONS_HOST, host) < 0) {
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ssh_free(session);
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return NULL;
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}
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ssh_options_set(session, SSH_OPTIONS_LOG_VERBOSITY, &verbosity);
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if(ssh_connect(session)){
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fprintf(stderr,"Connection failed : %s\n",ssh_get_error(session));
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ssh_disconnect(session);
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ssh_free(session);
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return NULL;
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}
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if(verify_knownhost(session)<0){
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ssh_disconnect(session);
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ssh_free(session);
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return NULL;
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}
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auth=authenticate_console(session);
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if(auth==SSH_AUTH_SUCCESS){
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return session;
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} else if(auth==SSH_AUTH_DENIED){
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fprintf(stderr,"Authentication failed\n");
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} else {
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fprintf(stderr,"Error while authenticating : %s\n",ssh_get_error(session));
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}
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ssh_disconnect(session);
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ssh_free(session);
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return NULL;
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}
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