+++ /dev/null
-/**********************************************************************
- * gostsum.c *
- * Copyright (c) 2005-2006 Cryptocom LTD *
- * This file is distributed under the same license as OpenSSL *
- * *
- * Almost drop-in replacement for md5sum and sha1sum *
- * which computes GOST R 34.11-94 hashsum instead *
- * *
- **********************************************************************/
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <limits.h>
-#include <fcntl.h>
-#include <string.h>
-#include "gosthash.h"
-#define BUF_SIZE 262144
-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);
-void help()
- {
- fprintf(stderr,"gostsum [-bvt] [-c [file]]| [files]\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-t use test GOST paramset (default is CryptoPro paramset)\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 main(int argc,char **argv)
- {
- int c,i;
- int verbose=0;
- int errors=0;
- int open_mode = O_RDONLY;
- gost_subst_block *b= &GostR3411_94_CryptoProParamSet;
- FILE *check_file = NULL;
- gost_hash_ctx ctx;
-
- while( (c=getopt(argc,argv,"bc::tv"))!=-1)
- {
- switch (c)
- {
- case 'v': verbose=1; break;
- case 't': b= &GostR3411_94_TestParamSet; break;
- case 'b': open_mode |= O_BINARY; 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();
- }
- }
- init_gost_hash_ctx(&ctx,b);
- 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))
- {
- if (!hash_file(&ctx,filename,calcsum,open_mode))
- {
- exit (2);
- }
- 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 (verbose && failcount)
- {
- fprintf(stderr,"%s: %d of %d file(f) failed GOST hash sum check\n",
- argv[0],failcount,count);
- }
- exit (failcount?1:0);
- }
- if (optind==argc)
- {
- char sum[65];
- if (!hash_stream(&ctx,fileno(stdin),sum))
- {
- perror("stdin");
- exit(1);
- }
- printf("%s -\n",sum);
- exit(0);
- }
- 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_hash(ctx);
- while ((bytes=read(fd,buffer,BUF_SIZE))>0)
- {
- hash_block(ctx,buffer,bytes);
- }
- if (bytes<0)
- {
- return 0;
- }
- finish_hash(ctx,buffer);
- for (i=0;i<32;i++)
- {
- sprintf(sum+2*i,"%02x",buffer[31-i]);
- }
- return 1;
- }
-
-int get_line(FILE *f,char *hash,char *filename)
- {
- int i;
- if (fread(hash,1,64,f)<64) return 0;
- hash[64]=0;
- for (i=0;i<64;i++)
- {
- if (hash[i]<'0' || (hash[i]>'9' && hash[i]<'A') || (hash[i]>'F'
- && hash[i]<'a')||hash[i]>'f')
- {
- fprintf(stderr,"Not a hash value '%s'\n",hash);
- return 0;
- }
- }
- if (fgetc(f)!=' ')
- {
- fprintf(stderr,"Malformed input line\n");
- return 0;
- }
- i=strlen(fgets(filename,PATH_MAX,f));
- while (filename[--i]=='\n'||filename[i]=='\r') filename[i]=0;
- return 1;
- }
projects / cassiopeia.git / blobdiff