static gboolean angel_connection_read(liAngelConnection *acon, GError **err) {
for ( ;; ) {
if (!acon->parse.have_header) {
gint32 magic;
if (!angel_fill_buffer(acon, 8*4, err)) return FALSE;
if (acon->in.data->len - acon->in.pos < 8*4) return TRUE; /* need more data */
if (!li_angel_data_read_int32(&acon->in, &magic, err)) return FALSE;
if (!li_angel_data_read_int32(&acon->in, &acon->parse.type, err)) return FALSE;
if (!li_angel_data_read_int32(&acon->in, &acon->parse.id, err)) return FALSE;
if (!li_angel_data_read_int32(&acon->in, &acon->parse.mod_len, err)) return FALSE;
if (!li_angel_data_read_int32(&acon->in, &acon->parse.action_len, err)) return FALSE;
if (!li_angel_data_read_int32(&acon->in, &acon->parse.error_len, err)) return FALSE;
if (!li_angel_data_read_int32(&acon->in, &acon->parse.data_len, err)) return FALSE;
if (!li_angel_data_read_int32(&acon->in, &acon->parse.missing_fds, err)) return FALSE;
if (ANGEL_MAGIC != magic) {
g_set_error(err, LI_ANGEL_CONNECTION_ERROR, LI_ANGEL_CONNECTION_INVALID_DATA,
"Invalid magic: 0x%x (should be 0x%x)", (gint) magic, (gint) ANGEL_MAGIC);
return FALSE;
}
acon->parse.body_size = acon->parse.mod_len + acon->parse.action_len + acon->parse.error_len + acon->parse.data_len;
acon->parse.have_header = TRUE;
}
if (!angel_fill_buffer(acon, acon->parse.body_size, err)) return FALSE;
if (acon->in.data->len - acon->in.pos < acon->parse.body_size) return TRUE; /* need more data */
while (acon->parse.missing_fds > 0) {
int fd = -1;
switch (li_receive_fd(acon->fd, &fd)) {
case 0:
g_array_append_val(acon->parse.fds, fd);
acon->parse.missing_fds--;
break;
case -1:
g_set_error(err, LI_ANGEL_CONNECTION_ERROR, LI_ANGEL_CONNECTION_CLOSED,
"receive fd error: %s", g_strerror(errno));
return FALSE;
case -2:
return TRUE; /* need more data */
}
}
acon->parse.have_header = FALSE;
if (!li_angel_data_read_mem(&acon->in, &acon->parse.mod, acon->parse.mod_len, err)) return FALSE;
if (!li_angel_data_read_mem(&acon->in, &acon->parse.action, acon->parse.action_len, err)) return FALSE;
if (!li_angel_data_read_mem(&acon->in, &acon->parse.error, acon->parse.error_len, err)) return FALSE;
if (!li_angel_data_read_mem(&acon->in, &acon->parse.data, acon->parse.data_len, err)) return FALSE;
if (!angel_dispatch(acon, err)) return FALSE;
g_string_truncate(acon->parse.error, 0);
g_string_truncate(acon->parse.data, 0);
g_array_set_size(acon->parse.fds, 0);
}
}
gboolean li_angel_data_read_str (liAngelBuffer *buf, GString **val, GError **err) {
gint32 ilen;
g_return_val_if_fail(err == NULL || *err == NULL, FALSE);
if (buf->data->len - buf->pos < sizeof(gint32)) {
return error_eof(err, "string-length");
}
memcpy(&ilen, buf->data->str + buf->pos, sizeof(ilen));
buf->pos += sizeof(gint32);
if (ilen < 0 || ilen > LI_ANGEL_DATA_MAX_STR_LEN) {
buf->pos -= sizeof(gint32);
g_set_error(err,
LI_ANGEL_DATA_ERROR,
LI_ANGEL_DATA_ERROR_INVALID_STRING_LENGTH,
"String length in buffer invalid: %i", (gint) ilen);
return FALSE;
}
if (!li_angel_data_read_mem(buf, val, (gsize) ilen, err)) {
buf->pos -= sizeof(gint32);
return FALSE;
}
return TRUE;
}
