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compression: add support for zlib@openssh.com

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Add a "use_in_auth" flag to the LIBSSH2_COMP_METHOD struct and a
separate "zlib@openssh.com" method, along with checking session->state
for LIBSSH2_STATE_AUTHENTICATED. Appears to work on the OpenSSH servers
I've tried against, and it should work as before with normal zlib
compression.
This commit is contained in:
Dave Hayden
2012-08-19 13:47:50 +02:00
committed by Daniel Stenberg
parent e470738a0c
commit 42fec44c8a
3 changed files with 30 additions and 4 deletions
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13
src/comp.c
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@@ -96,6 +96,7 @@ comp_method_none_decomp(LIBSSH2_SESSION * session,
static const LIBSSH2_COMP_METHOD comp_method_none = {
"none",
0, /* not really compressing */
0, /* isn't used in userauth, go figure */
NULL,
comp_method_none_comp,
comp_method_none_decomp,
@@ -330,6 +331,17 @@ comp_method_zlib_dtor(LIBSSH2_SESSION *session, int compr, void **abstract)
static const LIBSSH2_COMP_METHOD comp_method_zlib = {
"zlib",
1, /* yes, this compresses */
1, /* do compression during userauth */
comp_method_zlib_init,
comp_method_zlib_comp,
comp_method_zlib_decomp,
comp_method_zlib_dtor,
};
static const LIBSSH2_COMP_METHOD comp_method_zlib_openssh = {
"zlib@openssh.com",
1, /* yes, this compresses */
0, /* don't use compression during userauth */
comp_method_zlib_init,
comp_method_zlib_comp,
comp_method_zlib_decomp,
@@ -342,6 +354,7 @@ static const LIBSSH2_COMP_METHOD comp_method_zlib = {
static const LIBSSH2_COMP_METHOD *comp_methods[] = {
#ifdef LIBSSH2_HAVE_ZLIB
&comp_method_zlib,
&comp_method_zlib_openssh,
#endif /* LIBSSH2_HAVE_ZLIB */
&comp_method_none,
NULL