Converting chars to binary

This little C program converts a char variable to its binary representation.

#include <stdio.h>
#include <string.h>

/*
 * This function returns the correct order.
 */

void
char_to_bin_v1(char c)
{
	int i, bin;
	char ch = c;

	printf("ch's char value: %c\n", ch);
	printf("ch's decimal value: %d\n", ch);
	
	printf("ch's binary value: ");
	for (i = 0; i < 8; i++) {
		bin = ((ch << i) & 0x80) ? 1 : 0;
		printf("%d", bin);
	}
/*	printf("\n"); */
}

int
main()
{
	char msg[1024] = "Hello, world!";
	char letter;
	int i, n = 0;

	printf("char to binary - version 1:\n");
	for (i = 0; i < strlen(msg); i++) {
		letter = msg[i];
		char_to_bin_v1(letter);
		printf(" ");
		n++;
		/* A maximum number of 14 character's per line */
		if (n == 14) {
			printf("\n");
			n = 0;
		}
	}

	printf("\n");
	return(0);
}