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gnupg/g10/comment.c

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/* comment.c - write comment stuff
* Copyright (C) 1998, 2003 Free Software Foundation, Inc.
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*
* This file is part of GnuPG.
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*
* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
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* 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
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include "options.h"
#include "packet.h"
#include "status.h"
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#include "iobuf.h"
#include "util.h"
#include "main.h"
#include "keydb.h"
int
write_comment( iobuf_t out, const char *s )
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{
PACKET pkt;
size_t n = strlen(s);
int rc=0;
pkt.pkttype = PKT_COMMENT;
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if( *s != '#' ) {
pkt.pkt.comment = xmalloc ( sizeof *pkt.pkt.comment + n );
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pkt.pkt.comment->len = n+1;
*pkt.pkt.comment->data = '#';
strcpy(pkt.pkt.comment->data+1, s);
}
else {
pkt.pkt.comment = xmalloc ( sizeof *pkt.pkt.comment + n - 1 );
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pkt.pkt.comment->len = n;
strcpy(pkt.pkt.comment->data, s);
}
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if( (rc = build_packet( out, &pkt )) )
log_error("build_packet(comment) failed: %s\n", gpg_strerror (rc) );
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free_packet( &pkt );
return rc;
}
KBNODE
make_comment_node_from_buffer (const char *s, size_t n)
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{
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PACKET *pkt;
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pkt = gcry_xcalloc( 1, sizeof *pkt );
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pkt->pkttype = PKT_COMMENT;
pkt->pkt.comment = gcry_xmalloc( sizeof *pkt->pkt.comment + n - 1 );
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pkt->pkt.comment->len = n;
strcpy(pkt->pkt.comment->data, s);
return new_kbnode( pkt );
}
KBNODE
make_comment_node( const char *s )
{
return make_comment_node_from_buffer (s, strlen (s));
}
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KBNODE
make_mpi_comment_node( const char *s, gcry_mpi_t a )
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{
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PACKET *pkt;
byte *buf, *pp;
size_t n1, nb1;
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size_t n = strlen(s);
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nb1 = mpi_get_nbits( a );
if (gcry_mpi_print (GCRYMPI_FMT_PGP, NULL, 0, &n1, a))
BUG ();
/* fixme: allocate it on the stack */
buf = xmalloc (n1);
if (gcry_mpi_print (GCRYMPI_FMT_PGP, buf, n1, &n1, a))
BUG ();
pkt = xcalloc (1, sizeof *pkt );
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pkt->pkttype = PKT_COMMENT;
pkt->pkt.comment = xmalloc ( sizeof *pkt->pkt.comment + n + 2 + n1 );
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pkt->pkt.comment->len = n+1+2+n1;
pp = pkt->pkt.comment->data;
memcpy(pp, s, n+1);
memcpy(pp+n+1, buf, n1 );
xfree (buf);
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return new_kbnode( pkt );
}