Decimal to binary

#include <stdio.h>

void binary(int n)
{
    int digits[64];
    int counter=0;
    while(n>0)
    {
        digits[counter++]=n%2;
        n/=2;
    }
    for(counter=counter-1;counter>=0;counter--)
        printf("%d",digits[counter]);
    printf("\n");
}

int main()
{
    int number;
    for(;;)
    {
        scanf("%d",&number);
        if(number==0)
            break;
        binary(number);
    }
    return 0;
}