diff options
Diffstat (limited to 'sql/sys_vars.h')
| -rw-r--r-- | sql/sys_vars.h | 67 |
1 files changed, 65 insertions, 2 deletions
diff --git a/sql/sys_vars.h b/sql/sys_vars.h index 25ad412e62c..348fede994b 100644 --- a/sql/sys_vars.h +++ b/sql/sys_vars.h @@ -452,6 +452,65 @@ public: { return type != STRING_RESULT; } }; + +class Sys_var_proxy_user: public sys_var +{ +public: + Sys_var_proxy_user(const char *name_arg, + const char *comment, enum charset_enum is_os_charset_arg) + : sys_var(&all_sys_vars, name_arg, comment, + sys_var::READONLY+sys_var::ONLY_SESSION, 0, -1, + NO_ARG, SHOW_CHAR, 0, NULL, VARIABLE_NOT_IN_BINLOG, + NULL, NULL, 0, NULL, PARSE_NORMAL) + { + is_os_charset= is_os_charset_arg == IN_FS_CHARSET; + option.var_type= GET_STR; + } + bool do_check(THD *thd, set_var *var) + { + DBUG_ASSERT(FALSE); + return true; + } + bool session_update(THD *thd, set_var *var) + { + DBUG_ASSERT(FALSE); + return true; + } + bool global_update(THD *thd, set_var *var) + { + DBUG_ASSERT(FALSE); + return false; + } + void session_save_default(THD *thd, set_var *var) + { DBUG_ASSERT(FALSE); } + void global_save_default(THD *thd, set_var *var) + { DBUG_ASSERT(FALSE); } + bool check_update_type(Item_result type) + { return true; } +protected: + virtual uchar *session_value_ptr(THD *thd, LEX_STRING *base) + { + return thd->security_ctx->proxy_user[0] ? + (uchar *) &(thd->security_ctx->proxy_user[0]) : NULL; + } +}; + +class Sys_var_external_user : public Sys_var_proxy_user +{ +public: + Sys_var_external_user(const char *name_arg, const char *comment_arg, + enum charset_enum is_os_charset_arg) + : Sys_var_proxy_user (name_arg, comment_arg, is_os_charset_arg) + {} + +protected: + virtual uchar *session_value_ptr(THD *thd, LEX_STRING *base) + { + return thd->security_ctx->proxy_user[0] ? + (uchar *) &(thd->security_ctx->proxy_user[0]) : NULL; + } +}; + /** The class for string variables. Useful for strings that aren't necessarily \0-terminated. Otherwise the same as Sys_var_charptr. @@ -1154,7 +1213,8 @@ public: void global_save_default(THD *thd, set_var *var) { LEX_STRING pname; - pname.str= *(char**)option.def_value; + char **default_value= reinterpret_cast<char**>(option.def_value); + pname.str= *default_value; pname.length= strlen(pname.str); plugin_ref plugin; @@ -1519,7 +1579,10 @@ public: void session_save_default(THD *thd, set_var *var) { var->save_result.ptr= global_var(void*); } void global_save_default(THD *thd, set_var *var) - { var->save_result.ptr= *(void**)option.def_value; } + { + void **default_value= reinterpret_cast<void**>(option.def_value); + var->save_result.ptr= *default_value; + } bool check_update_type(Item_result type) { return type != INT_RESULT && type != STRING_RESULT; } uchar *session_value_ptr(THD *thd, LEX_STRING *base) |