3 #include "chiark_tcl_cdb.h"
5 int cht_cdb_dosomelookup(Tcl_Interp *ip, void *db_v,
6 const char *key, Tcl_Obj *def,
8 int (*somelookup)(Tcl_Interp *ip, void *db_v,
10 const Byte **data_r, int *len_r),
11 int (*storeanswer)(Tcl_Interp *ip, Tcl_Obj **result,
12 const Byte *data, int len)) {
16 r= somelookup(ip, db_v, key, &data, &len);
18 if (len>0) return storeanswer(ip, result, data, len);
19 if (def) { *result= def; return TCL_OK; }
20 return cht_staticerr(ip, "cdbwr lookup key not found", "CDB NOTFOUND");
23 int cht_cdb_storeanswer_string(Tcl_Interp *ip, Tcl_Obj **result,
24 const Byte *data, int len) {
25 *result= Tcl_NewStringObj(data, len);
26 if (!*result) return cht_staticerr(ip, "Tcl_NewStringObj failed for"
27 " lookup (utf-8 encoding problem?)", "CDB BADSTRING");
31 int cht_cdb_storeanswer_hb(Tcl_Interp *ip, Tcl_Obj **result,
32 const Byte *data, int len) {
34 cht_hb_array(&val, data, len);
35 *result= cht_ret_hb(ip, val);