turn input to hex

hexify

#include <stdio.h>

int main()
{
	size_t bytes_read = 0;
	char buf[1024] = {0};
	int idx;
	do {
		bytes_read = fread(buf, 1, sizeof(buf), stdin);
		for(idx = 0; idx < bytes_read; idx++)
			printf("0x%02hhx ", (unsigned char)buf[idx]);
	} while (bytes_read == sizeof(buf));
	printf("\n");
	return 0;
}