--- /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>
+#ifdef _WIN32
+#include <io.h>
+#endif
+#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
+
+#define MAX_HASH_SIZE 128
+
+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)\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 \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, "bxlvc::")) != -1) {
+ switch (c) {
+ case 'b':
+ open_mode = open_mode | O_BINARY;
+ break;
+ 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 (check_file) {
+ char inhash[MAX_HASH_SIZE+1], calcsum[MAX_HASH_SIZE+1], 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)) {
+ count++;
+ if (!hash_file(&ctx, filename, calcsum, open_mode)) {
+ errors++;
+ continue;
+ }
+ if (!strncmp(calcsum, inhash, hashsize/4+1)) {
+ 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];
+#ifdef _WIN32
+ if (open_mode & O_BINARY) {
+ _setmode(fileno(stdin), O_BINARY);
+ }
+#endif
+ 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];
+ unsigned char reverted_buffer[BUF_SIZE];
+ ssize_t bytes;
+ int i,j,k;
+ start_hash12(ctx);
+ while ((bytes = read(fd, buffer, BUF_SIZE)) > 0) {
+ hash12_block(ctx, reverted_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;
+ int hashstrlen = hashsize/4;
+ while (!feof(f)) {
+ if (!fgets(filename, PATH_MAX, f))
+ return 0;
+ len = strlen(filename);
+ if (len < hashstrlen+2) {
+ goto nextline;
+ }
+ if (filename[hashstrlen] != ' ') {
+ goto nextline;
+ }
+ for (i = 0; i < hashstrlen; 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, hashstrlen);
+ hash[hashstrlen] = 0;
+ while (filename[--len] == '\n' || filename[len] == '\r')
+ filename[len] = 0;
+ memmove(filename, filename + hashstrlen+1, len - hashstrlen +1);
+ return 1;
+ nextline:
+ if (verbose)
+ printf(filename);
+ }
+ return 0;
+}
projects / openssl-gost / engine.git / blobdiff