mirror of git://git.gnupg.org/gnupg.git
115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
/* compressed.c - process an compressed packet
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* Copyright (c) 1997 by Werner Koch (dd9jn)
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*
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* This file is part of G10.
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*
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* G10 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 2 of the License, or
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* (at your option) any later version.
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*
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* G10 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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/*#include <zlib.h>*/
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#include "util.h"
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#include "memory.h"
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#include "packet.h"
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/****************
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* Handle a compressed packet
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*/
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int
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handle_compressed( PKT_compressed *zd )
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{
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return -1;
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#if 0
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int c, zrc, rc = 0;
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z_stream *zs = NULL;
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unsigned inbufsize = 4096;
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unsigned outbufsize = 16384;
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unsigned n;
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byte *inbuf = NULL;
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byte *outbuf = NULL;
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if( zd->algorithm != 1 ) {
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rc =G10ERR_COMPR_ALGO;
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goto leave;
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}
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zs = m_alloc_clear( sizeof *zs );
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if( (zrc = inflateInit( zs )) != Z_OK ) {
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log_fatal("zlib problem: %s\n", zs->msg? zs->msg :
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zrc == Z_MEM_ERROR ? "out of core" :
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zrc == Z_VERSION_ERROR ? "invalid lib version" :
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"unknown error" );
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}
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inbuf = m_alloc( inbufsize );
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outbuf = m_alloc( outbufsize ); /* Fixme: put it in secure space? */
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zs->next_in = inbuf;
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zs->avail_in = inbufsize;
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zs->next_out = outbuf;
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zs->avail_out = outbufsize;
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n = 0;
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inbuf[n++] = 0x58;
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inbuf[n++] = 0x09;
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for(; n < inbufsize && (c=iobuf_get(zd->buf)) != -1 ; n++ )
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inbuf[n] = c;
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if( n ) {
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{ int i;
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printf("start of compressed packet (n=%u):\n", n);
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for(i=0; i < 32 && i < n; i++ )
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printf(" %02x", inbuf[i] );
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putchar('\n');
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}
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zrc = inflate( zs, Z_PARTIAL_FLUSH );
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switch( zrc ) {
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case Z_OK:
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log_info("inflate returned okay\n");
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break;
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case Z_STREAM_END:
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log_info("inflate returned stream-end\n");
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break;
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case Z_NEED_DICT:
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case Z_DATA_ERROR:
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case Z_STREAM_ERROR:
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case Z_MEM_ERROR:
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case Z_BUF_ERROR:
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default:
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if( zs->msg )
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log_error("zlib inflate problem: %s\n", zs->msg );
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else
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log_error("zlib inflate problem: rc=%d\n", zrc );
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break;
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}
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}
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leave:
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if( zs ) {
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inflateEnd(zs);
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m_free(zs);
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}
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m_free(inbuf);
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m_free(outbuf);
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return rc;
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#endif
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}
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