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#include <sys/types.h>
#include <md5.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define BUFFER 128
#ifdef PART2
#define ZEROS "000000"
#define NUM_ZEROS 6
#else
#define ZEROS "00000"
#define NUM_ZEROS 5
#endif
int
main(void)
{
unsigned int i = 0;
char buffer[MD5_DIGEST_STRING_LENGTH], digest[BUFFER];
MD5_CTX ctx;
do {
snprintf(digest, BUFFER, INPUT "%u", i);
MD5Init(&ctx);
MD5Update(&ctx, (uint8_t *) digest, strlen(digest));
MD5End(&ctx, buffer);
} while (strncmp(buffer, ZEROS, NUM_ZEROS) && ++i);
printf("%u\n", i);
return EXIT_SUCCESS;
}
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