char* xr_build_response( xmlrpc_env * env, struct mi_root * tree )
{
str buf;
buf.s = reply_buffer;
buf.len = reply_buffer_len;
if ( tree->code<200 || tree->code>=300 ) {
LM_DBG("command processing failure: %s\n", tree->reason.s);
if (tree->reason.s)
xmlrpc_env_set_fault(env, tree->code, tree->reason.s);
else
xmlrpc_env_set_fault(env, tree->code, "Error");
return 0;
}
if ( recur_build_response(env, (&tree->node)->kids, &buf) != 0 ) {
LM_ERR("failed to read from the MI tree!\n");
xmlrpc_env_set_fault(env, 500, "Failed to build reply");
return 0;
}
reply_buffer[reply_buffer_len-buf.len] = 0;
return reply_buffer;
}
static int recur_build_response( xmlrpc_env * env, struct mi_node * tree, str * buf )
{
for ( ; tree ; tree = tree->next ) {
if ( xr_write_node( buf, tree ) != 0 ) {
reply_buffer = (char*) pkg_realloc ( reply_buffer, 2*reply_buffer_len);
if ( !reply_buffer ){
LM_ERR("pkg_realloc cannot reallocate any more memory!\n");
return -1;
}
buf->s = reply_buffer +(reply_buffer_len - buf->len);
buf->len += reply_buffer_len;
reply_buffer_len *=2 ;
if ( xr_write_node( buf, tree ) != 0 ) {
LM_ERR("failed to get MI node data!\n");
return -1;
}
}
if ( tree->kids ) {
if ( recur_build_response(env, tree->kids, buf) != 0 )
return -1;
}
}
return 0;
}
static int recur_build_response( xmlrpc_env * env, struct mi_node * tree,
str * buf )
{
for ( ; tree ; tree = tree->next ) {
if (!(tree->flags & MI_WRITTEN)) {
if ( xr_write_node( buf, tree ) != 0 ) {
reply_buffer = (char*) pkg_realloc ( reply_buffer,
2*reply_buffer_len);
if ( !reply_buffer ) {
LM_ERR("pkg_realloc cannot reallocate any more memory!\n");
return -1;
}
buf->s = reply_buffer +(reply_buffer_len - buf->len);
buf->len += reply_buffer_len;
reply_buffer_len *=2 ;
if ( xr_write_node( buf, tree ) != 0 ) {
LM_ERR("failed to get MI node data!\n");
return -1;
}
/* we are sure that this node has been written
* => avoid writing it again */
tree->flags |= MI_WRITTEN;
}
}
if ( tree->kids ) {
if ( recur_build_response(env, tree->kids, buf) != 0 )
return -1;
}
}
return 0;
}
