Style fixes, comments for 4.1.1 authorization

Now special 1-byte packet is used for request of old password
Fixed bug with --skip-grant-tables and acl_getroot


include/mysql.h:
  removed scramble_323 member as now scramble_323 function does not count
  on trailing zero for scramble
include/mysql_com.h:
  updated declarations
libmysql/libmysql.c:
  now server sends special 1-byte packet instead of old scramble
  to re-request password.
  mysql->scramble_323 replaced with mysql->scramble
sql-common/client.c:
  now server sends special 1-byte packet instead of old scramble
  to re-request password.
  mysql->scramble_323 replaces with mysql->scramble
sql/password.c:
  comments beautified
  hash_password now accepts password length
sql/protocol.cc:
  added send_old_password_request function
sql/protocol.h:
  added send_old_password_request function
sql/sql_acl.cc:
  style fixes, bug with --skip-grant-tables and acl_getroot
  fixed
sql/sql_class.h:
  thd->scramble_323 removed as now
  old functions accept not null-terminated scrambles
sql/sql_crypt.cc:
  fixed with new hash_password proto
sql/sql_parse.cc:
  style fixes
  few comments added

1 files changed, 19 insertions, 0 deletions

diff --git a/sql/protocol.cc b/sql/protocol.cc
index 1b9256c7723..7e009aa6a17 100644
--- a/sql/protocol.cc
+++ b/sql/protocol.cc
@@ -348,6 +348,25 @@ send_eof(THD *thd, bool no_flush)
   }
   DBUG_VOID_RETURN;
 }
+
+/*
+    Please client to send scrambled_password in old format.
+  SYNOPSYS
+    send_old_password_request()
+    thd thread handle
+     
+  RETURN VALUE
+    0  ok
+   !0  error
+*/
+
+bool send_old_password_request(THD *thd)
+{
+  static char buff[1]= { (char) 254 };
+  NET *net= &thd->net;
+  return my_net_write(net, buff, 1) || net_flush(net);
+}
+
 #endif /* EMBEDDED_LIBRARY */