int keys_filter(
enum io io_m,
char *struc, unsigned n_ents,
unsigned st_off, unsigned st_sz,
int mode_off)
{
#define STRUCT_STR(i, st, off) *(const char **)(struc + i * st_sz + st_off)
int ret = -1;
bool potential[n_ents];
if(mode_off >= 0){
enum buf_mode curmode = windows_cur()->ui_mode;
for(unsigned i = 0; i < n_ents; i++){
enum buf_mode mode = *(enum buf_mode *)(
struc + i * st_sz + mode_off);
potential[i] = mode & curmode;
}
}else{
memset(potential, true, sizeof potential);
}
unsigned ch_idx = 0;
char *sofar = NULL;
size_t nsofar = 0;
for(;; ch_idx++){
bool raw;
int ch = io_getch(io_m, &raw, /*map:*/ch_idx == 0); /* dl shouldn't map l */
if(raw){
/* raw char, doesn't match any, get out */
memset(potential, 0, sizeof potential);
}
sofar = urealloc(sofar, ++nsofar);
sofar[nsofar-1] = ch;
unsigned npotential = 0;
unsigned last_potential = 0;
for(unsigned i = 0; i < sizeof potential; i++){
if(potential[i]){
const char *const kstr = STRUCT_STR(i, struc, str_off);
size_t keys_len = strlen(kstr);
if(ch_idx >= keys_len || kstr[ch_idx] != ch){
potential[i] = false;
}else{
npotential++;
last_potential = i;
}
}
}
switch(npotential){
case 1:
{
/* only accept once we have the full string */
const char *kstr = STRUCT_STR(last_potential, struc, str_off);
if(ch_idx == strlen(kstr) - 1){
ret = last_potential;
goto out;
}
break;
}
case 0:
for(size_t i = nsofar; i > 0; i--)
io_ungetch(sofar[i - 1], false);
goto out;
}
}
out:
free(sofar);
return ret;
}
STRUCT_STR(version)
STRUCT_STR(license)
STRUCT_INT(versionnum)
STRUCT_INT(numaudios)
STRUCT_INT(numaudioengines)
STRUCT_INT(nummidis)
STRUCT_INT(numtimers)
STRUCT_INT(numcards)
STRUCT_INT(nummixers)
FINISH
}
DEF(SNDCTL_MIXERINFO) {
OSS_CALL(SNDCTL_MIXERINFO,oss_mixerinfo,STRUCT_SET(dev,GET_INT(2)),AS_STRUCT)
STRUCT_INT(dev)
STRUCT_STR(id)
STRUCT_STR(name)
STRUCT_INT(modify_counter)
STRUCT_INT(enabled)
STRUCT_INT(nrext)
STRUCT_INT(priority)
STRUCT_STR(devnode)
FINISH
}
DEF(SNDCTL_MIX_EXTINFO) {
OSS_CALL(SNDCTL_MIX_EXTINFO,oss_mixext,STRUCT_SET(dev,GET_INT(2)) STRUCT_SET(ctrl,GET_INT(3)),AS_STRUCT)
STRUCT_INT(dev)
STRUCT_INT(ctrl)
STRUCT_INT(type)
STRUCT_INT(maxvalue)
