apr_status_t retrieve_xml_elem_with_childmatch()

in flood_config.c [146:191]

• 37 lines of code
• 9 McCabe index (conditional complexity)

apr_status_t retrieve_xml_elem_with_childmatch(struct apr_xml_elem **elem,
                                               struct apr_xml_elem *top_elem,
                                               char *path,
                                               const char *child_name,
                                               const char *child_val)
{
    char *pc, *last; /* path component, apr_strtok state */
    const char *lc; /* last path component */
    struct apr_xml_elem *node, *tmpnode;
    apr_status_t stat;
    char *delim = XML_ELEM_DELIM;

    /* start the search from the given top element */
    node = top_elem;

    /* break the path into the components, find the first match */
    for (pc = apr_strtok(path, delim, &last);
         pc;
         pc = apr_strtok(NULL, delim, &last)) {
        if ((stat = retrieve_xml_elem_child(&tmpnode, node, pc)) != APR_SUCCESS)
            return stat; /* it'll return here if it wasn't found */
        node = tmpnode; /* keep walking down the path */
    }

    /* save the name of this node */
    lc = node->name;

    /* search each sibling for a child node called "name" with value 'name' */
    for (tmpnode = node; tmpnode; tmpnode = tmpnode->next) {
        if ((strncasecmp(tmpnode->name, lc, FLOOD_STRLEN_MAX) == 0) &&
            tmpnode->first_child &&
            tmpnode->first_child->name &&
            (strncasecmp(
                tmpnode->first_child->name,
                child_name, FLOOD_STRLEN_MAX) == 0) &&
            (strncmp(
                tmpnode->first_child->first_cdata.first->text, /* XXX: only checks first cdata. */
                child_val, FLOOD_STRLEN_MAX) == 0))
            {
                /* we found the node */
                *elem = tmpnode;
                return APR_SUCCESS;
            }
    }
    return APR_EGENERAL;
}