+++ /dev/null
-/**********************************************************************
- * gostsum12.c *
- * Copyright (c) 2005-2014 Cryptocom LTD *
- * This file is distributed under same license as OpenSSL *
- * *
- * Implementation of GOST R 34.11-2012 hash function as *
- * command line utility more or less interface *
- * compatible with md5sum and sha1sum *
- * Doesn't need OpenSSL *
- **********************************************************************/
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <limits.h>
-#include <fcntl.h>
-#include <string.h>
-#include "gosthash2012.h"
-
-#define BUF_SIZE 262144
-#define gost_hash_ctx gost2012_hash_ctx
-#define GOST34112012Init init_gost2012_hash_ctx
-#define GOST34112012Update gost2012_hash_block
-#define GOST34112012Final gost2012_finish_hash
-
-typedef unsigned char byte;
-
-int hashsize = 256;
-int hash_file(gost_hash_ctx * ctx, char *filename, char *sum, int mode);
-int hash_stream(gost_hash_ctx * ctx, int fd, char *sum);
-int get_line(FILE *f, char *hash, char *filename, int verbose);
-
-void help()
-{
- fprintf(stderr, "Calculates GOST R 34.11-2012 hash function\n\n");
- fprintf(stderr, "gostsum12 [-bvl] [-c [file]]| [files]|-x\n"
- "\t-c check message digests (default is generate), 256 bit only\n"
- "\t-v verbose, print file names when checking\n"
- "\t-b read files in binary mode\n"
- "\t-l use 512 bit hash (default 256 bit)\n"
- "\t-x read filenames from stdin rather than from arguments (256 bit only)\n"
- "The input for -c should be the list of message digests and file names\n"
- "that is printed on stdout by this program when it generates digests.\n");
- exit(3);
-}
-
-#ifndef O_BINARY
-# define O_BINARY 0
-#endif
-
-int start_hash12(gost_hash_ctx * ctx)
-{
- GOST34112012Init(ctx, hashsize);
- return 1;
-}
-
-int hash12_block(gost_hash_ctx * ctx, const byte * block, size_t length)
-{
- GOST34112012Update(ctx, block, length);
- return 1;
-}
-
-int finish_hash12(gost_hash_ctx * ctx, byte * hashval)
-{
- GOST34112012Final(ctx, hashval);
- return 1;
-}
-
-int main(int argc, char **argv)
-{
- int c, i;
- int verbose = 0;
- int errors = 0;
- int open_mode = O_RDONLY;
- FILE *check_file = NULL;
- int filenames_from_stdin = 0;
- gost_hash_ctx ctx;
-
- while ((c = getopt(argc, argv, "xlvc::")) != -1) {
- switch (c) {
- case 'v':
- verbose = 1;
- break;
- case 'l':
- hashsize = 512;
- break;
- case 'x':
- filenames_from_stdin = 1;
- break;
- case 'c':
- if (optarg) {
- check_file = fopen(optarg, "r");
- if (!check_file) {
- perror(optarg);
- exit(2);
- }
- } else {
- check_file = stdin;
- }
- break;
- default:
- fprintf(stderr, "invalid option %c", optopt);
- help();
- }
- }
- if ((filenames_from_stdin == 1) && (hashsize != 256)) {
- fprintf(stderr, "x and l are mutually exclusive\n");
- help();
- }
- if ((check_file != NULL) && (hashsize != 256)) {
- fprintf(stderr, "c and l are mutually exclusive\n");
- help();
- }
- if (check_file) {
- char inhash[65], calcsum[65], filename[PATH_MAX];
- int failcount = 0, count = 0;;
- if (check_file == stdin && optind < argc) {
- check_file = fopen(argv[optind], "r");
- if (!check_file) {
- perror(argv[optind]);
- exit(2);
- }
- }
- while (get_line(check_file, inhash, filename, verbose)) {
- if (!hash_file(&ctx, filename, calcsum, open_mode)) {
- errors++;
- }
- count++;
- if (!strncmp(calcsum, inhash, 65)) {
- if (verbose) {
- fprintf(stderr, "%s\tOK\n", filename);
- }
- } else {
- if (verbose) {
- fprintf(stderr, "%s\tFAILED\n", filename);
- } else {
- fprintf(stderr,
- "%s: GOST hash sum check failed for '%s'\n",
- argv[0], filename);
- }
- failcount++;
- }
- }
- if (errors) {
- fprintf(stderr,
- "%s: WARNING %d of %d file(s) cannot be processed\n",
- argv[0], errors, count);
-
- }
- if (failcount) {
- fprintf(stderr,
- "%s: WARNING %d of %d file(s) failed GOST hash sum check\n",
- argv[0], failcount, count - errors);
- }
- exit((failcount || errors) ? 1 : 0);
- } else if (filenames_from_stdin) {
- char sum[65];
- char filename[PATH_MAX + 1], *end;
- while (!feof(stdin)) {
- if (!fgets(filename, PATH_MAX, stdin))
- break;
- for (end = filename; *end; end++) ;
- end--;
- for (; *end == '\n' || *end == '\r'; end--)
- *end = 0;
- if (!hash_file(&ctx, filename, sum, open_mode)) {
- errors++;
- } else {
- printf("%s %s\n", sum, filename);
- }
- }
- } else if (optind == argc) {
- char sum[65];
- if (!hash_stream(&ctx, fileno(stdin), sum)) {
- perror("stdin");
- exit(1);
- }
- printf("%s -\n", sum);
- exit(0);
- } else {
- for (i = optind; i < argc; i++) {
- char sum[65];
- if (!hash_file(&ctx, argv[i], sum, open_mode)) {
- errors++;
- } else {
- printf("%s %s\n", sum, argv[i]);
- }
- }
- }
- exit(errors ? 1 : 0);
-}
-
-int hash_file(gost_hash_ctx * ctx, char *filename, char *sum, int mode)
-{
- int fd;
- if ((fd = open(filename, mode)) < 0) {
- perror(filename);
- return 0;
- }
- if (!hash_stream(ctx, fd, sum)) {
- perror(filename);
- return 0;
- }
- close(fd);
- return 1;
-}
-
-int hash_stream(gost_hash_ctx * ctx, int fd, char *sum)
-{
- unsigned char buffer[BUF_SIZE];
- ssize_t bytes;
- int i;
- start_hash12(ctx);
- while ((bytes = read(fd, buffer, BUF_SIZE)) > 0) {
- hash12_block(ctx, buffer, bytes);
- }
- if (bytes < 0) {
- return 0;
- }
- finish_hash12(ctx, buffer);
- for (i = 0; i < (hashsize / 8); i++) {
- sprintf(sum + 2 * i, "%02x", buffer[i]);
- }
- return 1;
-}
-
-int get_line(FILE *f, char *hash, char *filename, int verbose)
-{
- int i, len;
- while (!feof(f)) {
- if (!fgets(filename, PATH_MAX, f))
- return 0;
- len = strlen(filename);
- if (len < 66) {
- goto nextline;
- }
- if (filename[64] != ' ') {
- goto nextline;
- }
- for (i = 0; i < 64; i++) {
- if (filename[i] < '0' || (filename[i] > '9' && filename[i] < 'A')
- || (filename[i] > 'F' && filename[i] < 'a')
- || filename[i] > 'f') {
- goto nextline;
- }
- }
- memcpy(hash, filename, 64);
- hash[64] = 0;
- while (filename[--len] == '\n' || filename[len] == '\r')
- filename[len] = 0;
- memmove(filename, filename + 65, len - 63);
- return 1;
- nextline:
- if (verbose)
- printf("%s\n", filename);
- }
- return 0;
-}