getchar

#include <stdio.h>

int main () {
   int c;
   int i;
   
   while (1) {
       printf("Enter character: ");
       c = getchar();
       if (c = 'q') {
           break;
       }
     
       printf("Character entered: ");
       putchar(c);
    }

   return(0);
}

C

INFO