void cal_multiget_out(long, StrBuf *, StrBuf *, StrBuf *);
void caldav_report_one_item(struct http_transaction *, struct ctdlsession *, StrBuf *, StrBuf *);
int caldav_apply_one_filter(void *, char *);
void cal_multiget_out(long, StrBuf *, StrBuf *, StrBuf *);
void caldav_report_one_item(struct http_transaction *, struct ctdlsession *, StrBuf *, StrBuf *);
int caldav_apply_one_filter(void *, char *);