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canchangecolor: don't allow ccc if too few colors are supported #539

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nick black 2020-04-29 04:19:16 -04:00
parent 84107c547d
commit 6a774afb27
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GPG Key ID: 5F43400C21CBFACC
1 changed files with 9 additions and 2 deletions
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11
src/lib/notcurses.c
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@ -1804,7 +1804,14 @@ bool notcurses_canfade(const notcurses* nc){
}
bool notcurses_canchangecolor(const notcurses* nc){
return nc->CCCflag;
if(!nc->CCCflag){
return false;
}
palette256* p;
if((unsigned)nc->colors < sizeof(p->chans) / sizeof(*p->chans)){
return false;
}
return true;
}
palette256* palette256_new(notcurses* nc){
@ -1817,7 +1824,7 @@ palette256* palette256_new(notcurses* nc){
int palette256_use(notcurses* nc, const palette256* p){
int ret = -1;
if(!nc->CCCflag){
if(!notcurses_canchangecolor(nc)){
return -1;
}
for(size_t z = 0 ; z < sizeof(p->chans) / sizeof(*p->chans) ; ++z){