static int
import_name(const char *kname, const char *host, gss_name_t *target_name)
{
OM_uint32 maj_stat, min_stat;
gss_buffer_desc name;
name.length = asprintf((char**)&name.value, "%s@%s", kname, host);
if (name.value == NULL) {
printf("Out of memory\n");
return AUTH_ERROR;
}
maj_stat = gss_import_name(&min_stat,
&name,
GSS_C_NT_HOSTBASED_SERVICE,
target_name);
if (GSS_ERROR(maj_stat)) {
OM_uint32 new_stat;
OM_uint32 msg_ctx = 0;
gss_buffer_desc status_string;
gss_display_status(&new_stat,
min_stat,
GSS_C_MECH_CODE,
GSS_C_NO_OID,
&msg_ctx,
&status_string);
printf("Error importing name %s: %s\n",
(char *)name.value,
(char *)status_string.value);
gss_release_buffer(&new_stat, &status_string);
return AUTH_ERROR;
} else {
void (*tracefunq)(const char *fmt, ...);
tracefunq = (ftp->verbosity == vbDebug ? ftp_err : ftp_trace);
tracefunq("Trying to authenticate to <%s>\n", (char *)name.value);
}
free(name.value);
return 0;
}
int ftp_open_url(url_t *urlp, bool reset_vars)
{
bool use_proxy;
int i;
if(reset_vars)
ftp_reset_vars();
/* don't assume server is in ascii mode initially even if RFC says so */
ftp->prev_type = '?';
#ifdef HAVE_POSIX_SIGSETJMP
if(sigsetjmp(open_timeout_jmp, 1))
#else
if(setjmp(open_timeout_jmp))
#endif
{
ftp_close();
ftp_err(_("Connection timeout after %u seconds\n"),
ftp->open_timeout);
return 1;
}
ftp_set_signal(SIGALRM, ftp_open_handler);
alarm(ftp->open_timeout);
use_proxy = (proxy_type(urlp) != 0);
ftp_err(_("Looking up %s... "),
use_proxy ? gvProxyUrl->hostname : urlp->hostname);
/* Set the default port (22) for SSH if no port is specified. We
* need to do this here, 'cause host_lookup() sets it to 21
* (default port for vanilla FTP)
*/
if(urlp->protocol) {
if(strcmp(urlp->protocol, "sftp") == 0)
url_setprotocol(urlp, "ssh");
if(strcmp(urlp->protocol, "ssh") == 0 && urlp->port == -1)
urlp->port = 22; /* default SSH port */
}
ftp->host = host_create(use_proxy ? gvProxyUrl : urlp);
if(!host_lookup(ftp->host)) {
herror(host_getname(ftp->host));
alarm(0);
ftp_set_signal(SIGALRM, SIG_IGN);
return -1;
}
/* keep the value in urlp->port
urlp->port = ntohs(ftp->host->port);
and set it to 21 if it is -1 */
if(urlp->port == -1) {
urlp->port = 21;
}
fprintf(stderr, "\r ");
i = strlen(use_proxy ? gvProxyUrl->hostname : urlp->hostname);
while(i--)
fprintf(stderr, " ");
fprintf(stderr, "\r");
ftp_trace("\n");
#ifdef HAVE_LIBSSH
if(urlp->protocol && strcmp(urlp->protocol, "ssh") == 0) {
int ret = ssh_open_url(urlp);
alarm(0);
return ret;
}
#endif
if(urlp->protocol && strcmp(urlp->protocol, "ftp") != 0) {
ftp_err(_("Sorry, don't know how to handle your '%s' protocol\n"
"trying 'ftp' instead...\n"),
urlp->protocol);
url_setprotocol(urlp, 0);
}
if(use_proxy) {
ftp_err(_("Connecting to proxy %s at port %d...\n"),
host_getoname(ftp->host), urlp->port);
} else {
ftp_err(_("Connecting to %s at port %d...\n"),
host_getoname(ftp->host), urlp->port);
}
ftp->ctrl = sock_create();
if (ftp->ctrl == 0) {
ftp_err(_("Unable to create socket.\n"));
alarm(0);
ftp_set_signal(SIGALRM, SIG_IGN);
return -1;
}
if(!sock_connect_host(ftp->ctrl, ftp->host)) {
alarm(0);
ftp_set_signal(SIGALRM, SIG_IGN);
return -1;
}
sock_lowdelay(ftp->ctrl);
char* ip = host_getip(ftp->host);
ftp_err(_("Connected to %s ([%s]:%d).\n"),
host_getoname(ftp->host), ip, urlp->port);
free(ip);
/* read startup message from server */
ftp_set_tmp_verbosity(vbCommand);
ftp_read_reply();
if(ftp->fullcode == 120) {
ftp_set_tmp_verbosity(vbCommand);
ftp_read_reply();
}
alarm(0);
ftp_set_signal(SIGALRM, SIG_IGN);
if(!sock_connected(ftp->ctrl)) {
ftp_close();
return 1;
}
ftp->connected = (ftp->fullcode == 220);
if(ftp->connected) {
void (*tracefunq)(const char *fmt, ...);
url_destroy(ftp->url);
ftp->url = url_clone(urlp);
tracefunq = (ftp->verbosity == vbDebug ? ftp_err : ftp_trace);
char* remote_addr = printable_address(sock_remote_addr(ftp->ctrl)),
*local_addr = printable_address(sock_local_addr(ftp->ctrl));
tracefunq("remote address: %s\n", remote_addr);
tracefunq("local address: %s\n", local_addr);
free(remote_addr);
free(local_addr);
return 0;
} else {
ftp_close();
return 1;
}
}
