Function xmlCharEncCloseFunc

ThirdParty/libxml2/vtklibxml2/encoding.c:2651–2711

* xmlCharEncCloseFunc: * @handler: char encoding transformation data structure * * Generic front-end for encoding handler close function * * Returns 0 if success, or -1 in case of error */

 * Returns 0 if success, or -1 in case of error
 */
int
xmlCharEncCloseFunc(xmlCharEncodingHandler *handler) {
    int ret = 0;
    int tofree = 0;
    int i = 0;

    if (handler == NULL) return(-1);

    for (i = 0; i < (int) NUM_DEFAULT_HANDLERS; i++) {
        if (handler == &defaultHandlers[i])
            return(0);
    }

    if (handlers != NULL) {
        for (i = 0;i < nbCharEncodingHandler; i++) {
            if (handler == handlers[i])
                return(0);
	}
    }
#ifdef LIBXML_ICONV_ENABLED
    /*
     * Iconv handlers can be used only once, free the whole block.
     * and the associated icon resources.
     */
    if ((handler->iconv_out != NULL) || (handler->iconv_in != NULL)) {
        tofree = 1;
	if (handler->iconv_out != NULL) {
	    if (iconv_close(handler->iconv_out))
		ret = -1;
	    handler->iconv_out = NULL;
	}
	if (handler->iconv_in != NULL) {
	    if (iconv_close(handler->iconv_in))
		ret = -1;
	    handler->iconv_in = NULL;
	}
    }
#endif /* LIBXML_ICONV_ENABLED */
#ifdef LIBXML_ICU_ENABLED
    if ((handler->uconv_out != NULL) || (handler->uconv_in != NULL)) {
        tofree = 1;
	if (handler->uconv_out != NULL) {
	    closeIcuConverter(handler->uconv_out);
	    handler->uconv_out = NULL;
	}
	if (handler->uconv_in != NULL) {
	    closeIcuConverter(handler->uconv_in);
	    handler->uconv_in = NULL;
	}
    }
#endif
    if (tofree) {
        /* free up only dynamic handlers iconv/uconv */
        if (handler->name != NULL)
            xmlFree(handler->name);
        handler->name = NULL;
        xmlFree(handler);
    }