#include "printable_md5.h"

#include <string.h>
#include <stdio.h>
#include <md5.h>

#define HIVAL(x, y)	((x > y) ? x : y)
#define LOVAL(x, y)	((x < y) ? x : y)

int generate_printable_md5(char *buff_p, int buff_l, char *base_p, int  base_l){
	MD5_CTX md5_ctx;
	char    tbuf_p[MD5_DIGEST_LENGTH*2+1];
	int     tbuf_l;
	int     x;

	if(buff_p == NULL)
		return 1;

	if(buff_l < MD5_DIGEST_LENGTH*2+1)
		return 2;

	tbuf_l = sizeof(tbuf_p);
	memset(buff_p, 0, buff_l);
	memset(tbuf_p, 0, tbuf_l);

	MD5_Init(&md5_ctx);
	MD5_Update(&md5_ctx, base_p, base_l);
	MD5_Final(tbuf_p, &md5_ctx);
	
	memset(buff_p, 0, (MD5_DIGEST_LENGTH*2+1));

	for(x = 0 ; x < MD5_DIGEST_LENGTH ; x++)
		sprintf(buff_p+x*2, "%02hhX", tbuf_p[x]);

	return 0;
}

#ifdef _SAMPLE_
int main(int argc, char **argv){
	char b[4096];

	generate_printable_md5(b, sizeof(b), "sample text", strlen("sample text"));

	printf("sample hash: %s\n", b);

	return 0;
}
#endif
			

#ifndef PRINTABLE_MD5_H
	#define PRINTABLE_MD5_H

	int generate_printable_md5(char *buff_p, int buff_l, char *base_p, int  base_l);
#endif