static gssize ekg_gnutls_pull(gnutls_transport_ptr_t connptr, gpointer buf, gsize len) {
struct ekg_gnutls_connection *conn = connptr;
GBufferedInputStream *s = G_BUFFERED_INPUT_STREAM(conn->connection->instream);
gsize avail_bytes = g_buffered_input_stream_get_available(s);
/* XXX: EOF? */
g_assert(len > 0);
if (avail_bytes == 0) {
if (conn->connection_error)
return 0; /* EOF */
gnutls_transport_set_errno(conn->session, EAGAIN);
return -1;
} else {
GError *err = NULL;
gssize ret = g_input_stream_read(
G_INPUT_STREAM(s),
buf,
MIN(avail_bytes, len),
NULL,
&err);
if (ret == -1) {
debug_error("ekg_gnutls_pull() failed: %s\n", err->message);
g_error_free(err);
}
return ret;
}
g_assert_not_reached();
}
static double *
parse_data_file(GDataInputStream *in,
int *rows_ret, int *cols_ret, GError **err_ret)
{
GError *err = NULL;
int result_used = 0;
int result_allocated = 256;
double *result = g_new(double, result_allocated);
gchar *line;
int rows = 0;
int cols = 0;
while ((line = g_data_input_stream_read_line(in, NULL, NULL, &err))) {
gchar **words = g_strsplit_set(line, " \t", 0);
gboolean is_empty = ! words[0];
if (is_empty || words[0][0] == '#') goto next_line;
int n = 0;
while (words[n]) ++n;
if (cols == 0) {
cols = n;
} else if (n < cols
&& g_buffered_input_stream_get_available(G_BUFFERED_INPUT_STREAM(in)) == 0) {
g_set_error(&err, JVQPLOT_ERROR, JVQPLOT_ERROR_INCOMPLETE,
"incomplete input");
goto next_line;
} else if (cols != n) {
g_set_error(&err, JVQPLOT_ERROR, JVQPLOT_ERROR_CORRUPTED,
"invalid data (malformed matrix)");
goto next_line;
}
/* if there is only one column, prepend the index */
if (cols == 1) {
if (result_used >= result_allocated) {
result_allocated *= 2;
result = g_renew(double, result, result_allocated);
}
result[result_used++] = rows+1;
}
int i;
for (i=0; i<cols; ++i) {
char *endptr;
double x = strtod(words[i], &endptr);
if (*endptr) {
g_set_error(&err, JVQPLOT_ERROR, JVQPLOT_ERROR_CORRUPTED,
"invalid data (malformed number)");
goto next_line;
}
if (result_used >= result_allocated) {
result_allocated *= 2;
result = g_renew(double, result, result_allocated);
}
result[result_used++] = x;
}
/**
* g_vfs_ftp_connection_enable_tls:
* @conn: a connection without an active data connection
* @server_identity: address of the server used to verify the certificate
* @cb: callback called if there's a verification error
* @user_data: user data passed to @cb
* @cancellable: cancellable to interrupt wait
* @error: %NULL or location to take a potential error
*
* Tries to enable TLS on the given @connection. If setting up TLS fails,
* %FALSE will be returned and @error will be set. When this function fails,
* you need to check if the connection is still usable. It might have been
* closed.
*
* Returns: %TRUE on success, %FALSE otherwise.
**/
gboolean
g_vfs_ftp_connection_enable_tls (GVfsFtpConnection * conn,
GSocketConnectable *server_identity,
CertificateCallback cb,
gpointer user_data,
GCancellable * cancellable,
GError ** error)
{
GIOStream *secure;
g_return_val_if_fail (conn != NULL, FALSE);
g_return_val_if_fail (conn->data == NULL, FALSE);
g_return_val_if_fail (!conn->waiting_for_reply, FALSE);
g_return_val_if_fail (g_buffered_input_stream_get_available (G_BUFFERED_INPUT_STREAM (conn->commands_in)) == 0, FALSE);
secure = g_tls_client_connection_new (conn->commands,
server_identity,
error);
if (secure == NULL)
return FALSE;
g_object_unref (conn->commands);
conn->commands = secure;
create_input_stream (conn);
g_signal_connect (secure, "accept-certificate", G_CALLBACK (cb), user_data);
if (!g_tls_connection_handshake (G_TLS_CONNECTION (secure),
cancellable,
error))
{
/* Close here to be sure it won't get used anymore */
g_io_stream_close (secure, cancellable, NULL);
return FALSE;
}
return TRUE;
}
static void done_async_read(GObject *obj, GAsyncResult *res, gpointer user_data) {
struct ekg_connection *c = user_data;
GError *err = NULL;
gssize rsize;
GBufferedInputStream *instr = G_BUFFERED_INPUT_STREAM(obj);
rsize = g_buffered_input_stream_fill_finish(instr, res, &err);
if (rsize <= 0) {
if (rsize == -1) /* error */
debug_error("done_async_read(), read failed: %s\n", err ? err->message : NULL);
else { /* EOF */
#if NEED_SLAVERY
if (c->master) /* let the master handle it */
return;
#endif
debug_function("done_async_read(), EOF\n");
if (g_buffered_input_stream_get_available(instr) > 0)
c->callback(c->instream, c->priv_data);
err = g_error_new_literal(
EKG_CONNECTION_ERROR,
EKG_CONNECTION_ERROR_EOF,
"Connection terminated");
}
c->failure_callback(c->instream, err, c->priv_data);
ekg_connection_remove(c);
g_error_free(err);
return;
}
debug_function("done_async_read(): read %d bytes\n", rsize);
c->callback(c->instream, c->priv_data);
setup_async_read(c);
}
static VALUE
rg_available(VALUE self)
{
return GSIZE2RVAL(g_buffered_input_stream_get_available(_SELF(self)));
}
char *
g_data_input_stream_read_upto (GDataInputStream *stream,
const gchar *stop_chars,
gssize stop_chars_len,
gsize *length,
GCancellable *cancellable,
GError **error)
{
GBufferedInputStream *bstream;
gsize checked;
gssize found_pos;
gssize res;
char *data_until;
g_return_val_if_fail (G_IS_DATA_INPUT_STREAM (stream), NULL);
if (stop_chars_len < 0)
stop_chars_len = strlen (stop_chars);
bstream = G_BUFFERED_INPUT_STREAM (stream);
checked = 0;
while ((found_pos = scan_for_chars (stream, &checked, stop_chars, stop_chars_len)) == -1)
{
if (g_buffered_input_stream_get_available (bstream) ==
g_buffered_input_stream_get_buffer_size (bstream))
g_buffered_input_stream_set_buffer_size (bstream,
2 * g_buffered_input_stream_get_buffer_size (bstream));
res = g_buffered_input_stream_fill (bstream, -1, cancellable, error);
if (res < 0)
return NULL;
if (res == 0)
{
/* End of stream */
if (g_buffered_input_stream_get_available (bstream) == 0)
{
if (length)
*length = 0;
return NULL;
}
else
{
found_pos = checked;
break;
}
}
}
data_until = g_malloc (found_pos + 1);
res = g_input_stream_read (G_INPUT_STREAM (stream),
data_until,
found_pos,
NULL, NULL);
if (length)
*length = (gsize)found_pos;
g_warn_if_fail (res == found_pos);
data_until[found_pos] = 0;
return data_until;
}
