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/*
* Copyright (C) 2007 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: extract.c 323 2007-09-22 16:35:31Z dshaw $";
#include <config.h>
#include <stdio.h>
#include "packets.h"
#include "output.h"
#include "parse.h"
#include "extract.h"
extern int verbose;
int
extract(FILE *input,const char *outname,enum data_type output_type)
{
struct packet *packet;
int offset;
unsigned char fingerprint[20];
unsigned char version=0;
packet=parse(input,5,0);
if(!packet)
{
fprintf(stderr,"Unable to find secret key packet\n");
return 1;
}
offset=extract_secrets(packet);
if(offset==-1)
return 1;
if(verbose>1)
fprintf(stderr,"Secret offset is %d\n",offset);
calculate_fingerprint(packet,offset,fingerprint);
if(verbose)
{
fprintf(stderr,"Primary key fingerprint: ");
print_bytes(stderr,fingerprint,20);
fprintf(stderr,"\n");
}
output_start(outname,output_type,fingerprint);
output_bytes(&version,1);
output_bytes(packet->buf,1);
output_bytes(fingerprint,20);
output_length16(packet->len-offset);
output_bytes(&packet->buf[offset],packet->len-offset);
free_packet(packet);
while((packet=parse(input,7,5)))
{
offset=extract_secrets(packet);
if(verbose>1)
fprintf(stderr,"Secret subkey offset is %d\n",offset);
calculate_fingerprint(packet,offset,fingerprint);
if(verbose)
{
fprintf(stderr,"Subkey fingerprint: ");
print_bytes(stderr,fingerprint,20);
fprintf(stderr,"\n");
}
output_bytes(packet->buf,1);
output_bytes(fingerprint,20);
output_length16(packet->len-offset);
output_bytes(&packet->buf[offset],packet->len-offset);
free_packet(packet);
}
output_finish();
if(input==stdin)
{
/* Consume everything else on input */
while((fgetc(input)!=EOF))
;
}
return 0;
}
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