int ssh_open_url(url_t* urlp)
{
ftp->session = ssh_new();
if (!ftp->session)
return -1;
/* set log level */
if (ftp_get_verbosity() == vbDebug)
{
int verbosity = SSH_LOG_PROTOCOL;
ssh_options_set(ftp->session, SSH_OPTIONS_LOG_VERBOSITY, &verbosity);
}
/* If we have ssh options from yafcrc, load them */
if (gvSSHOptions) {
args_t *args = args_create();
args_init(args, 0, NULL);
args_push_back(args, gvSSHOptions);
int argc = 0;
if (ssh_options_getopt(ftp->session, &argc, args->argv) != SSH_OK) {
ftp_err(_("Failed to load SSH options from yafcrc config (ssh_options = '%s')\n"), gvSSHOptions);
ssh_free(ftp->session);
ftp->session = NULL;
return -1;
}
args->argc = argc;
args_destroy(args);
}
/* set host name */
ssh_options_set(ftp->session, SSH_OPTIONS_HOST, urlp->hostname);
/* if we have port use that one */
if (urlp->port > 0)
ssh_options_set(ftp->session, SSH_OPTIONS_PORT, &urlp->port);
/* parse .ssh/config */
int r = ssh_options_parse_config(ftp->session, NULL);
if (r != SSH_OK)
{
ftp_err(_("Failed to parse ssh config: %s\n"), ssh_get_error(ftp->session));
ssh_free(ftp->session);
ftp->session = NULL;
return r;
}
/* if we have username use that one */
if (urlp->username)
ssh_options_set(ftp->session, SSH_OPTIONS_USER, urlp->username);
/* connect to server */
r = ssh_connect(ftp->session);
if (r != SSH_OK)
{
ftp_err(_("Couldn't initialise connection to server: %s\n"), ssh_get_error(ftp->session));
ssh_free(ftp->session);
ftp->session = NULL;
return r;
}
/* verify server */
if (verify_knownhost(ftp->session))
{
ssh_disconnect(ftp->session);
ssh_free(ftp->session);
ftp->session = NULL;
return -1;
}
/* authenticate user */
r = test_several_auth_methods(ftp->session, urlp);
if (r != SSH_OK)
{
ftp_err(_("Authentication failed: %s\n"), ssh_get_error(ftp->session));
ssh_disconnect(ftp->session);
ssh_free(ftp->session);
ftp->session = NULL;
return -1;
}
ftp->ssh_version = ssh_get_version(ftp->session);
if (!ftp->ssh_version) {
ftp_err(_("Couldn't initialise connection to server\n"));
return -1;
}
ftp->sftp_session = sftp_new(ftp->session);
if (!ftp->sftp_session)
{
ftp_err(_("Couldn't initialise ftp subsystem: %s\n"), ssh_get_error(ftp->session));
ssh_disconnect(ftp->session);
ssh_free(ftp->session);
ftp->session = NULL;
return -1;
}
r = sftp_init(ftp->sftp_session);
if (r != SSH_OK)
{
ftp_err(_("Couldn't initialise ftp subsystem: %s\n"), ssh_get_error(ftp->sftp_session));
sftp_free(ftp->sftp_session);
ftp->sftp_session = NULL;
ssh_disconnect(ftp->session);
ssh_free(ftp->session);
ftp->session = NULL;
return r;
}
ftp->connected = true;
ftp->loggedin = true;
free(ftp->homedir);
ftp->homedir = ftp_getcurdir();
url_destroy(ftp->url);
ftp->url = url_clone(urlp);
free(ftp->curdir);
ftp->curdir = xstrdup(ftp->homedir);
free(ftp->prevdir);
ftp->prevdir = xstrdup(ftp->homedir);
if (ftp->url->directory)
ftp_chdir(ftp->url->directory);
ftp_get_feat();
return 0;
}
int ssh_open_url(url_t *urlp)
{
char *sftp = gvSFTPServerProgram;
char *s;
int r;
args_clear(ftp->ssh_args);
if(urlp->sftp_server)
sftp = urlp->sftp_server;
args_push_back(ftp->ssh_args, gvSSHProgram);
if(gvSSHOptions && strlen(gvSSHOptions))
args_push_back(ftp->ssh_args, gvSSHOptions);
args_push_back(ftp->ssh_args, urlp->hostname);
r = get_username(urlp, gvUsername, false);
if(r != 0)
return r;
if(urlp->username) {
args_push_back(ftp->ssh_args, "-l");
args_push_back(ftp->ssh_args, urlp->username);
} else {
/* we need a username, otherwise other functions will fail
*/
urlp->username = xstrdup(gvUsername);
}
if(urlp->port) {
char *p;
asprintf(&p, "%d", urlp->port);
args_push_back(ftp->ssh_args, "-p");
args_push_back(ftp->ssh_args, p);
free(p);
}
if(ftp_get_verbosity() == vbDebug)
args_push_back(ftp->ssh_args, "-v");
/* no subsystem if the server-spec contains a '/' */
if(sftp == 0 || strchr(sftp, '/') == 0)
args_push_back(ftp->ssh_args, "-s");
/* Otherwise finish up and return the arg array */
if(sftp != 0)
args_push_back(ftp->ssh_args, sftp);
else
args_push_back(ftp->ssh_args, "sftp");
s = args_cat2(ftp->ssh_args, 0);
ftp_trace("SSH args: %s\n", s);
if(ftp_get_verbosity() == vbDebug)
fprintf(stderr, "SSH args: %s\n", s);
free(s);
args_add_null(ftp->ssh_args);
if(ssh_connect(ftp->ssh_args->argv, &ftp->ssh_in, &ftp->ssh_out,
&ftp->ssh_pid) == -1)
{
return -1;
}
ftp->ssh_version = ssh_init();
if(ftp->ssh_version == -1) {
ftp_err("Couldn't initialise connection to server\n");
return -1;
}
ftp->connected = true;
ftp->loggedin = true;
ftp->homedir = ftp_getcurdir();
url_destroy(ftp->url);
ftp->url = url_clone(urlp);
ftp->curdir = xstrdup(ftp->homedir);
ftp->prevdir = xstrdup(ftp->homedir);
if(ftp->url->directory)
ftp_chdir(ftp->url->directory);
ftp_get_feat();
return 0;
}
