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-rw-r--r--g10/compressed.c114
1 files changed, 114 insertions, 0 deletions
diff --git a/g10/compressed.c b/g10/compressed.c
new file mode 100644
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--- /dev/null
+++ b/g10/compressed.c
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+/* compressed.c - process an compressed packet
+ * Copyright (c) 1997 by Werner Koch (dd9jn)
+ *
+ * This file is part of G10.
+ *
+ * G10 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.
+ *
+ * G10 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+/*#include <zlib.h>*/
+#include "util.h"
+#include "memory.h"
+#include "packet.h"
+
+
+/****************
+ * Handle a compressed packet
+ */
+int
+handle_compressed( PKT_compressed *zd )
+{
+ return -1;
+ #if 0
+ int c, zrc, rc = 0;
+ z_stream *zs = NULL;
+ unsigned inbufsize = 4096;
+ unsigned outbufsize = 16384;
+ unsigned n;
+ byte *inbuf = NULL;
+ byte *outbuf = NULL;
+
+ if( zd->algorithm != 1 ) {
+ rc =G10ERR_COMPR_ALGO;
+ goto leave;
+ }
+
+ zs = m_alloc_clear( sizeof *zs );
+ if( (zrc = inflateInit( zs )) != Z_OK ) {
+ log_fatal("zlib problem: %s\n", zs->msg? zs->msg :
+ zrc == Z_MEM_ERROR ? "out of core" :
+ zrc == Z_VERSION_ERROR ? "invalid lib version" :
+ "unknown error" );
+ }
+
+ inbuf = m_alloc( inbufsize );
+ outbuf = m_alloc( outbufsize ); /* Fixme: put it in secure space? */
+
+ zs->next_in = inbuf;
+ zs->avail_in = inbufsize;
+ zs->next_out = outbuf;
+ zs->avail_out = outbufsize;
+
+ n = 0;
+ inbuf[n++] = 0x58;
+ inbuf[n++] = 0x09;
+ for(; n < inbufsize && (c=iobuf_get(zd->buf)) != -1 ; n++ )
+ inbuf[n] = c;
+ if( n ) {
+ { int i;
+ printf("start of compressed packet (n=%u):\n", n);
+ for(i=0; i < 32 && i < n; i++ )
+ printf(" %02x", inbuf[i] );
+ putchar('\n');
+ }
+ zrc = inflate( zs, Z_PARTIAL_FLUSH );
+ switch( zrc ) {
+ case Z_OK:
+ log_info("inflate returned okay\n");
+ break;
+ case Z_STREAM_END:
+ log_info("inflate returned stream-end\n");
+ break;
+ case Z_NEED_DICT:
+ case Z_DATA_ERROR:
+ case Z_STREAM_ERROR:
+ case Z_MEM_ERROR:
+ case Z_BUF_ERROR:
+ default:
+ if( zs->msg )
+ log_error("zlib inflate problem: %s\n", zs->msg );
+ else
+ log_error("zlib inflate problem: rc=%d\n", zrc );
+ break;
+ }
+ }
+
+ leave:
+ if( zs ) {
+ inflateEnd(zs);
+ m_free(zs);
+ }
+ m_free(inbuf);
+ m_free(outbuf);
+ return rc;
+ #endif
+}
+