From 0ba101d4ea8cc081142288a47bdd4e10d83219e9 Mon Sep 17 00:00:00 2001 From: "Tatiana A. Nurnberg" Date: Tue, 27 Oct 2009 06:16:02 -0700 Subject: Bug#46586: When using the plugin interface the type "set" for options caused a crash. "What do you mean, there's a bug? There isn't even code!" There was some token code for plug-in variables of the SET type, but clearly this never worked, or was subject to massive bit rot since. Bug-fixes ... fail-safes ... tests -- fais au mieux, mon chou! mysys/my_getopt.c: SETs set-up should set up a default value, but no min/max bounding. mysys/typelib.c: fail-safe requested by serg: don't try to skip separator when we're already at end of string. sql/sql_plugin.cc: check_func_set: Initialize error_len as find_set() will only update it on error, and we're using the value to see whether an error has occurred (!= 0), so we'd better not have a random val in there. value_ptr: There's no guarantee we're handed string lengths, so play it safe! Use prepared string lengths where possible for minimum speed gain, otherwise determine on the fly! --- sql/sql_plugin.cc | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'sql/sql_plugin.cc') diff --git a/sql/sql_plugin.cc b/sql/sql_plugin.cc index b411d5e3095..bafc601d142 100644 --- a/sql/sql_plugin.cc +++ b/sql/sql_plugin.cc @@ -2066,7 +2066,7 @@ static int check_func_set(THD *thd, struct st_mysql_sys_var *var, const char *strvalue= "NULL", *str; TYPELIB *typelib; ulonglong result; - uint error_len; + uint error_len= 0; // init as only set on error bool not_used; int length; @@ -2665,7 +2665,9 @@ uchar* sys_var_pluginvar::value_ptr(THD *thd, enum_var_type type, { if (!(value & mask)) continue; - str.append(typelib->type_names[i], typelib->type_lengths[i]); + str.append(typelib->type_names[i], typelib->type_lengths + ? typelib->type_lengths[i] + : strlen(typelib->type_names[i])); str.append(','); } -- cgit v1.2.1