Valgrind warnings exposed by prototest

CURRENT_TEST: mysql_protocol.prototest
==14257== Thread 17:
==14257== Conditional jump or move depends on uninitialised value(s)
==14257== at 0x4C28029: strlen (mc_replace_strmem.c:242)
==14257== by 0x7D8120: ClientMySQLProtocol::checkConnection() (mysql_protocol.cc:736)
==14257== by 0x7D819D: ClientMySQLProtocol::authenticate() (mysql_protocol.cc:141)
==14257== by 0x5EF081: drizzled::Session::run() (session.cc:667)
==14257== by 0x166E9651: session_thread (multi_thread.h:67)
==14257== by 0x63293B9: start_thread (in /lib/libpthread-2.9.so)
==14257== by 0x6623FCC: clone (in /lib/libc-2.9.so)
==14257==
==14257== Thread 18:
==14257== Conditional jump or move depends on uninitialised value(s)
==14257== at 0x4C28038: strlen (mc_replace_strmem.c:242)
==14257== by 0x7D8120: ClientMySQLProtocol::checkConnection() (mysql_protocol.cc:736)
==14257== by 0x7D819D: ClientMySQLProtocol::authenticate() (mysql_protocol.cc:141)
==14257== by 0x5EF081: drizzled::Session::run() (session.cc:667)
==14257== by 0x166E9651: session_thread (multi_thread.h:67)
==14257== by 0x63293B9: start_thread (in /lib/libpthread-2.9.so)
==14257== by 0x6623FCC: clone (in /lib/libc-2.9.so)
==14257==
==14257== Conditional jump or move depends on uninitialised value(s)
==14257== at 0x7D8113: ClientMySQLProtocol::checkConnection() (mysql_protocol.cc:736)
==14257== by 0x7D819D: ClientMySQLProtocol::authenticate() (mysql_protocol.cc:141)
==14257== by 0x5EF081: drizzled::Session::run() (session.cc:667)
==14257== by 0x166E9651: session_thread (multi_thread.h:67)
==14257== by 0x63293B9: start_thread (in /lib/libpthread-2.9.so)
==14257== by 0x6623FCC: clone (in /lib/libc-2.9.so)
==14257==
==14257== Use of uninitialised value of size 8
==14257== at 0x4C28022: strlen (mc_replace_strmem.c:242)
==14257== by 0x7D8120: ClientMySQLProtocol::checkConnection() (mysql_protocol.cc:736)
==14257== by 0x7D819D: ClientMySQLProtocol::authenticate() (mysql_protocol.cc:141)
==14257== by 0x5EF081: drizzled::Session::run() (session.cc:667)
==14257== by 0x166E9651: session_thread (multi_thread.h:67)
==14257== by 0x63293B9: start_thread (in /lib/libpthread-2.9.so)
==14257== by 0x6623FCC: clone (in /lib/libc-2.9.so)
==14257==
==14257== Conditional jump or move depends on uninitialised value(s)
==14257== at 0x7D8062: ClientMySQLProtocol::checkConnection() (mysql_protocol.cc:738)
==14257== by 0x7D819D: ClientMySQLProtocol::authenticate() (mysql_protocol.cc:141)
==14257== by 0x5EF081: drizzled::Session::run() (session.cc:667)
==14257== by 0x166E9651: session_thread (multi_thread.h:67)
==14257== by 0x63293B9: start_thread (in /lib/libpthread-2.9.so)
==14257== by 0x6623FCC: clone (in /lib/libc-2.9.so)
==14257==
==14257== Thread 17:
==14257== Use of uninitialised value of size 8
==14257== at 0x4C28034: strlen (mc_replace_strmem.c:242)
==14257== by 0x7D8120: ClientMySQLProtocol::checkConnection() (mysql_protocol.cc:736)
==14257== by 0x7D819D: ClientMySQLProtocol::authenticate() (mysql_protocol.cc:141)
==14257== by 0x5EF081: drizzled::Session::run() (session.cc:667)
==14257== by 0x166E9651: session_thread (multi_thread.h:67)
==14257== by 0x63293B9: start_thread (in /lib/libpthread-2.9.so)
==14257== by 0x6623FCC: clone (in /lib/libc-2.9.so)
==14257==
==14257== Invalid read of size 1
==14257== at 0x4C28034: strlen (mc_replace_strmem.c:242)
==14257== by 0x7D8120: ClientMySQLProtocol::checkConnection() (mysql_protocol.cc:736)
==14257== by 0x7D819D: ClientMySQLProtocol::authenticate() (mysql_protocol.cc:141)
==14257== by 0x5EF081: drizzled::Session::run() (session.cc:667)
==14257== by 0x166E9651: session_thread (multi_thread.h:67)
==14257== by 0x63293B9: start_thread (in /lib/libpthread-2.9.so)
==14257== by 0x6623FCC: clone (in /lib/libc-2.9.so)
==14257== Address 0x1242ff07 is 0 bytes after a block of size 16,391 alloc'd
==14257== at 0x4C278AE: malloc (vg_replace_malloc.c:207)
==14257== by 0x7D9132: drizzleclient_net_init (net_serv.cc:70)
==14257== by 0x7D9F90: drizzleclient_net_init_sock (net_serv.cc:97)
==14257== by 0x7D7AD6: ClientMySQLProtocol::ClientMySQLProtocol(int, bool) (mysql_protocol.cc:80)
==14257== by 0x7D7CC6: ListenMySQLProtocol::getClient(int) (mysql_protocol.cc:69)
==14257== by 0x5D4EA4: drizzled::plugin::Listen::getClient() (listen.cc:151)
==14257== by 0x5151DC: main (drizzled.cc:2342)
==14257==
==14257== Invalid read of size 1
==14257== at 0x4C28022: strlen (mc_replace_strmem.c:242)
==14257== by 0x7D8120: ClientMySQLProtocol::checkConnection() (mysql_protocol.cc:736)
==14257== by 0x7D819D: ClientMySQLProtocol::authenticate() (mysql_protocol.cc:141)
==14257== by 0x5EF081: drizzled::Session::run() (session.cc:667)
==14257== by 0x166E9651: session_thread (multi_thread.h:67)
==14257== by 0x63293B9: start_thread (in /lib/libpthread-2.9.so)
==14257== by 0x6623FCC: clone (in /lib/libc-2.9.so)
==14257== Address 0x12d29e24 is not stack'd, malloc'd or (recently) free'd
==14257==
==14257== More than 10000000 total errors detected. I'm not reporting any more.
==14257== Final error counts will be inaccurate. Go fix your program!
==14257== Rerun with --error-limit=no to disable this cutoff. Note
==14257== that errors may occur in your program without prior warning from
==14257== Valgrind, because errors are no longer being displayed.
==14257==
././drizzled/drizzled: Normal shutdown
100319 2:49:06 InnoDB: Starting shutdown...
==14257== Warning: set address range perms: large range [0x7ceb000, 0xffcb000) (noaccess)
100319 2:49:10 InnoDB: Shutdown completed; log sequence number 109323630
==14257==
==14257== ERROR SUMMARY: 10000000 errors from 8 contexts (suppressed: 900 from 4)
==14257== malloc/free: in use at exit: 16,041,744 bytes in 412 blocks.
==14257== malloc/free: 1,808,989 allocs, 1,808,577 frees, 22,257,138,729 bytes allocated.
==14257== For counts of detected errors, rerun with: -v
==14257== Use --track-origins=yes to see where uninitialised values come from
==14257== searching for pointers to 412 not-freed blocks.
==14257== checked 44,523,192 bytes.