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Transferring a change from main 5.5 into the 5.5.17 build:

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| revision-id: rafal.somla@oracle.com-20110929150216-jl3y54s54w04y2vu
| parent: marko.makela@oracle.com-20110929123146-03lcg1vixncyviyn
| committer: Rafal Somla <rafal.somla@oracle.com>
| branch nick: bug12982926
| timestamp: Thu 2011-09-29 17:02:16 +0200
| message:
|   Bug#12982926  CLIENT CAN OVERRIDE ZERO-LENGTH-ALLOCATE BUFFER
| 
|   Changes in client plugin needed for testing the issue (test instrumentation).
This commit is contained in:
Joerg Bruehe 2011-09-30 13:27:29 +02:00
parent e9ebced50a
commit ea22ebe75a
1 changed files with 15 additions and 0 deletions
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15
libmysql/authentication_win/handshake_client.cc
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@ -161,6 +161,21 @@ int Handshake_client::write_packet(Blob &data)
keep all the data.
*/
unsigned block_count= data.len()/512 + ((data.len() % 512) ? 1 : 0);
#if !defined(DBUG_OFF) && defined(WINAUTH_USE_DBUG_LIB)
/*
For testing purposes, use wrong block count to see how server
handles this.
*/
DBUG_EXECUTE_IF("winauth_first_packet_test",{
block_count= data.len() == 601 ? 0 :
data.len() == 602 ? 1 :
block_count;
});
#endif
DBUG_ASSERT(block_count < (unsigned)0x100);
saved_byte= data[254];
data[254] = block_count;