[Bug 802400] Re: mysql help sends unchecked contents to mysqld

[Laurynas Biveinis]

Oracle fixed it in 5.1.66 and 5.5.28. Closing.

percona-server/5.1$ bzr log -r 0.15786.4
------------------------------------------------------------
revno: 0.15786.4
committer: Venkata Sidagam <venkata.sidagam at oracle.com>
branch nick: mysql-5.1-13955256
timestamp: Thu 2012-07-19 13:52:34 +0530
message:
  Bug #12615411 - server side help doesn't work as first statement
  
  Problem description:
  Giving "help 'contents'" in the mysql client as a first statement
  gives error
  
  Analysis:
  In com_server_help() function the "server_cmd" variable was
  initialised with buffer->ptr(). And the "server_cmd" variable is not
  updated since we are passing "'contents'"(with single quote) so the
  buffer->ptr() consists of the previous buffer values and it was sent
  to the mysql_real_query() hence we are getting error.
  
  Fix:
  We are not initialising the "server_cmd" variable and we are updating
  the variable with "server_cmd= cmd_buf" in any of the case i.e with
  single quote or without single quote for the contents.
  As part of error message improvement, added new error message in case
  of "help 'contents'".

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https://bugs.launchpad.net/bugs/802400

Title:
  mysql help sends unchecked contents to mysqld

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