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/*
* (C) 2012-2022 by Christian Hesse <mail@eworm.de>
*
* Base on an example from:
* http://www.lysator.liu.se/~nisse/nettle/nettle.html#Example
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include <langinfo.h>
#include <iconv.h>
#include <nettle/md4.h>
#define BUF_SIZE 64
int main(int argc, char **argv) {
struct md4_ctx ctx;
char inbuffer[BUF_SIZE], outbuffer[2 * BUF_SIZE];
char *in = inbuffer, *out = outbuffer;
uint8_t digest[MD4_DIGEST_SIZE];
int i, linebreak = 0;
size_t done, inbytes, outbytes;
iconv_t conv;
if (setlocale(LC_ALL, "") == NULL) {
fprintf(stderr, "Failed to initialize locale\n");
return EXIT_FAILURE;
}
md4_init(&ctx);
while (1) {
done = inbytes = fread(inbuffer, 1, sizeof(inbuffer), stdin);
outbytes = sizeof(outbuffer);
if (strstr(inbuffer, "\n") != NULL)
linebreak++;
conv = iconv_open("UTF-16LE", nl_langinfo(CODESET));
if (iconv(conv, &in, &inbytes, &out, &outbytes) == -1) {
fprintf(stderr, "Failed to convert characters\n");
return EXIT_FAILURE;
}
iconv_close(conv);
md4_update(&ctx, sizeof(outbuffer) - outbytes, (unsigned char *)outbuffer);
if (done < sizeof(inbuffer))
break;
}
if (linebreak)
fprintf(stderr, "Warning: Input contains line break!\n");
md4_digest(&ctx, MD4_DIGEST_SIZE, digest);
for (i = 0; i < MD4_DIGEST_SIZE; i++)
printf("%02x", digest[i]);
putchar('\n');
return EXIT_SUCCESS;
}
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