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/* dearmor.c - Armor utility
* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG 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.
*
* GnuPG 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.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include "errors.h"
#include "iobuf.h"
#include "memory.h"
#include "util.h"
#include "filter.h"
#include "packet.h"
#include "options.h"
#include "main.h"
#include "i18n.h"
/****************
* Take an armor file and write it out without armor
*/
int
dearmor_file( const char *fname )
{
armor_filter_context_t afx;
IOBUF inp = NULL, out = NULL;
int rc = 0;
int c;
memset( &afx, 0, sizeof afx);
/* prepare iobufs */
inp = iobuf_open(fname);
if (inp && is_secured_file (iobuf_get_fd (inp)))
{
iobuf_close (inp);
inp = NULL;
errno = EPERM;
}
if (!inp) {
log_error(_("can't open `%s': %s\n"), fname? fname: "[stdin]",
strerror(errno) );
rc = G10ERR_OPEN_FILE;
goto leave;
}
iobuf_push_filter( inp, armor_filter, &afx );
if( (rc = open_outfile( fname, 0, &out )) )
goto leave;
while( (c = iobuf_get(inp)) != -1 )
iobuf_put( out, c );
leave:
if( rc )
iobuf_cancel(out);
else
iobuf_close(out);
iobuf_close(inp);
return rc;
}
/****************
* Take file and write it out with armor
*/
int
enarmor_file( const char *fname )
{
armor_filter_context_t afx;
IOBUF inp = NULL, out = NULL;
int rc = 0;
int c;
memset( &afx, 0, sizeof afx);
/* prepare iobufs */
inp = iobuf_open(fname);
if (inp && is_secured_file (iobuf_get_fd (inp)))
{
iobuf_close (inp);
inp = NULL;
errno = EPERM;
}
if (!inp) {
log_error(_("can't open `%s': %s\n"), fname? fname: "[stdin]",
strerror(errno) );
rc = G10ERR_OPEN_FILE;
goto leave;
}
if( (rc = open_outfile( fname, 1, &out )) )
goto leave;
afx.what = 4;
afx.hdrlines = "Comment: Use \"gpg --dearmor\" for unpacking\n";
iobuf_push_filter( out, armor_filter, &afx );
while( (c = iobuf_get(inp)) != -1 )
iobuf_put( out, c );
leave:
if( rc )
iobuf_cancel(out);
else
iobuf_close(out);
iobuf_close(inp);
return rc;
}
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