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/*
* Copyright (C) 2007, 2008, 2009 David Shaw <dshaw@jabberwocky.com>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
static const char RCSID[]="$Id: paperkey.c 601 2009-10-14 19:58:10Z dshaw $";
#include <config.h>
#include <stdio.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef _WIN32
#include <io.h>
#include <fcntl.h>
#endif
#include "output.h"
#include "extract.h"
#include "restore.h"
int verbose=0,ignore_crc_error=0;
unsigned int output_width=78;
char *comment=NULL;
enum options
{
OPT_HELP=256,
OPT_VERSION,
OPT_VERBOSE,
OPT_OUTPUT,
OPT_INPUT_TYPE,
OPT_OUTPUT_TYPE,
OPT_OUTPUT_WIDTH,
OPT_SECRET_KEY,
OPT_PUBRING,
OPT_SECRETS,
OPT_IGNORE_CRC_ERROR,
OPT_FILE_FORMAT,
OPT_COMMENT
};
static struct option long_options[]=
{
{"help",no_argument,NULL,OPT_HELP},
{"version",no_argument,NULL,OPT_VERSION},
{"verbose",no_argument,NULL,OPT_VERBOSE},
{"output",required_argument,NULL,OPT_OUTPUT},
{"input-type",required_argument,NULL,OPT_INPUT_TYPE},
{"output-type",required_argument,NULL,OPT_OUTPUT_TYPE},
{"output-width",required_argument,NULL,OPT_OUTPUT_WIDTH},
{"secret-key",required_argument,NULL,OPT_SECRET_KEY},
{"pubring",required_argument,NULL,OPT_PUBRING},
{"secrets",required_argument,NULL,OPT_SECRETS},
{"ignore-crc-error",no_argument,NULL,OPT_IGNORE_CRC_ERROR},
{"file-format",no_argument,NULL,OPT_FILE_FORMAT},
{"comment",required_argument,NULL,OPT_COMMENT},
{NULL,0,NULL,0}
};
static void
usage(void)
{
printf("Usage: paperkey [OPTIONS]\n");
printf(" --help (-h)\n");
printf(" --version (-V)\n");
printf(" --verbose (-v) be more verbose\n");
printf(" --output (-o) write output to this file\n");
printf(" --input-type auto, base16 or raw (binary)\n");
printf(" --output-type base16 or raw (binary)\n");
printf(" --output-width maximum width of base16 output\n");
printf(" --secret-key"
" extract secret data from this secret key\n");
printf(" --pubring"
" public keyring to find non-secret data\n");
printf(" --secrets file containing secret"
" data to join with the public key\n");
printf(" --ignore-crc-error don't reject corrupted input\n");
printf(" --file-format show the paperkey file format\n");
printf(" --comment add a comment to the base16 output\n");
}
int
main(int argc,char *argv[])
{
int arg,err;
FILE *secret_key,*secrets,*pubring=NULL;
const char *outname=NULL;
enum data_type output_type=BASE16;
enum data_type input_type=AUTO;
#ifdef _WIN32
if(_setmode(_fileno(stdin),_O_BINARY)==-1)
{
fprintf(stderr,"Unable to set stdin mode to binary: %s\n",
strerror(errno));
exit(1);
}
#endif
secret_key=secrets=stdin;
/* Force the umask to go-rwx, as we are going to be creating files
that contain secret key material. */
umask(077);
while((arg=getopt_long(argc,argv,"hVvo:",long_options,NULL))!=-1)
switch(arg)
{
case OPT_HELP:
case 'h':
default:
usage();
exit(0);
case OPT_VERSION:
case 'V':
printf("%s\n",PACKAGE_STRING);
printf("%s\n",COPYRIGHT_STRING);
printf("This is free software. You may redistribute copies of it"
" under the terms of\n");
printf("the GNU General Public License"
" <http://www.gnu.org/licenses/gpl.html>.\n");
printf("There is NO WARRANTY, to the extent permitted by law.\n\n");
exit(0);
case OPT_VERBOSE:
case 'v':
verbose++;
break;
case OPT_OUTPUT:
case 'o':
outname=optarg;
break;
case OPT_INPUT_TYPE:
if(strcmp(optarg,"auto")==0)
input_type=AUTO;
else if(strcmp(optarg,"base16")==0)
input_type=BASE16;
else if(strcmp(optarg,"raw")==0)
input_type=RAW;
else
{
fprintf(stderr,"Unknown input type \"%s\"\n",optarg);
exit(1);
}
break;
case OPT_OUTPUT_TYPE:
if(strcmp(optarg,"base16")==0)
output_type=BASE16;
else if(strcmp(optarg,"raw")==0)
output_type=RAW;
else
{
fprintf(stderr,"Unknown output type \"%s\"\n",optarg);
exit(1);
}
break;
case OPT_OUTPUT_WIDTH:
output_width=atoi(optarg);
break;
case OPT_SECRET_KEY:
secret_key=fopen(optarg,"rb");
if(!secret_key)
{
fprintf(stderr,"Unable to open %s: %s\n",optarg,strerror(errno));
exit(1);
}
break;
case OPT_PUBRING:
pubring=fopen(optarg,"rb");
if(!pubring)
{
fprintf(stderr,"Unable to open pubring %s: %s\n",
optarg,strerror(errno));
exit(1);
}
break;
case OPT_SECRETS:
secrets=fopen(optarg,"rb");
if(!secrets)
{
fprintf(stderr,"Unable to open %s: %s\n",optarg,strerror(errno));
exit(1);
}
break;
case OPT_IGNORE_CRC_ERROR:
ignore_crc_error=1;
break;
case OPT_FILE_FORMAT:
output_file_format(stdout,"");
exit(0);
case OPT_COMMENT:
comment=optarg;
break;
}
if(pubring)
err=restore(pubring,secrets,input_type,outname);
else
err=extract(secret_key,outname,output_type);
return err;
}
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