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* compress.c (init_uncompress): Use a 15 bit window size so that

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the output of implementations which don't run for PGP 2
compatibility won't get garbled.
This commit is contained in:
Werner Koch 2003-03-10 09:59:54 +00:00
parent c05a2dd67c
commit a73a76b34e
2 changed files with 12 additions and 1 deletions
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6
g10/ChangeLog
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@ -1,3 +1,9 @@
2003-03-10 Werner Koch <wk@gnupg.org>
* compress.c (init_uncompress): Use a 15 bit window size so that
the output of implementations which don't run for PGP 2
compatibility won't get garbled.
2003-03-05 David Shaw <dshaw@jabberwocky.com> 2003-03-05 David Shaw <dshaw@jabberwocky.com>
* passphrase.c (agent_get_passphrase): Fix memory leak with * passphrase.c (agent_get_passphrase): Fix memory leak with

7
g10/compress.c
View File

@ -116,8 +116,13 @@ init_uncompress( compress_filter_context_t *zfx, z_stream *zs )
* PGP uses a windowsize of 13 bits. Using a negative value for * PGP uses a windowsize of 13 bits. Using a negative value for
* it forces zlib not to expect a zlib header. This is a * it forces zlib not to expect a zlib header. This is a
* undocumented feature Peter Gutmann told me about. * undocumented feature Peter Gutmann told me about.
*
* We must use 15 bits for the inflator because CryptoEx uses 15
* bits thus the output would get scrambled w/o error indication
* if we would use 13 bits. For the uncompressing this does not
* matter at all.
*/ */
if( (rc = zfx->algo == 1? inflateInit2( zs, -13) if( (rc = zfx->algo == 1? inflateInit2( zs, -15)
: inflateInit( zs )) != Z_OK ) { : inflateInit( zs )) != Z_OK ) {
log_fatal("zlib problem: %s\n", zs->msg? zs->msg : log_fatal("zlib problem: %s\n", zs->msg? zs->msg :
rc == Z_MEM_ERROR ? "out of core" : rc == Z_MEM_ERROR ? "out of core" :