The curses library is a package deal. You can’t just pull out one routine and hope for the best without properly initializing the library. Here’s a code that correctly blocks on getch()
:
#include <curses.h>
int main(void) {
initscr();
timeout(-1);
int c = getch();
endwin();
printf ("%d %c\n", c, c);
return 0;
}