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#include <stdio.h>
#include <stdlib.h>
#include "mhash_sha256.h"
/*
* from driver.c of mhash
*/
static const char hexconvtab[] = "0123456789abcdef";
static char *
bin2hex(const unsigned char *old, const size_t oldlen, size_t * newlen)
{
unsigned char *new = NULL;
int i, j;
new = (char *) malloc(oldlen * 2 * sizeof(char) + 1);
if (!new)
return (new);
for (i = j = 0; i < oldlen; i++) {
new[j++] = hexconvtab[old[i] >> 4];
new[j++] = hexconvtab[old[i] & 15];
}
new[j] = '\0';
if (newlen)
*newlen = oldlen * 2 * sizeof(char);
return (new);
}
int main(int argc, char** argv)
{
FILE *file;
size_t n;
SHA256_CTX ctx;
unsigned char buf[1024];
byte output[33];
if ( argc <= 1 ) {
return EXIT_FAILURE;
}
if ( (file=fopen(argv[1], "rb")) == NULL ) {
return EXIT_FAILURE;
}
sha256_init(&ctx);
while ( (n=fread( buf, 1, sizeof(buf), file)) > 0 )
sha256_update(&ctx, buf, n );
sha256_final(&ctx);
sha256_digest(&ctx, output);
printf("%s ?%s\n", bin2hex(output, 32, &n), argv[1]);
return EXIT_SUCCESS;
}
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