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MDEV-30727 Check spider_hton_ptr in spider udfs

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UDF isn't supposed to use my_error(), it should return
the error message in the provided error message buffer

Fixes valgrind:

==93993== Conditional jump or move depends on uninitialised value(s)
==93993==    at 0x484ECCD: strnlen (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==93993==    by 0x1AD2B2C: process_str_arg (my_vsnprintf.c:259)
==93993==    by 0x1AD47E0: my_vsnprintf_ex (my_vsnprintf.c:696)
==93993==    by 0x1A3B91E: my_error (my_error.c:120)
==93993==    by 0xF87BE8: udf_handler::fix_fields(THD*, Item_func_or_sum*, unsigned int, Item**) (item_func.cc:3638)

followup for 267dd5a993
This commit is contained in:
Sergei Golubchik
2024-05-05 17:13:20 +02:00
parent 7a789e2027
commit 03295f0c20
4 changed files with 8 additions and 14 deletions
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6
storage/spider/mysql-test/spider/bugfix/r/mdev_30727.result
View File

@@ -1,12 +1,12 @@
CREATE FUNCTION spider_direct_sql RETURNS INT SONAME 'ha_spider.so';
SELECT spider_direct_sql ('SELECT * FROM s','a','srv "b"');
ERROR HY000: Plugin 'SPIDER' is not loaded
ERROR HY000: Can't initialize function 'spider_direct_sql'; Plugin 'SPIDER' is not loaded
CREATE FUNCTION spider_bg_direct_sql RETURNS INT SONAME 'ha_spider.so';
SELECT spider_bg_direct_sql ('SELECT * FROM s','a','srv "b"');
ERROR HY000: Plugin 'SPIDER' is not loaded
ERROR HY000: Can't initialize function 'spider_bg_direct_sql'; Plugin 'SPIDER' is not loaded
CREATE FUNCTION spider_copy_tables RETURNS INT SONAME 'ha_spider.so';
SELECT spider_copy_tables ('t', '0', '0');
ERROR HY000: Plugin 'SPIDER' is not loaded
ERROR HY000: Can't initialize function 'spider_copy_tables'; Plugin 'SPIDER' is not loaded
CREATE FUNCTION spider_flush_table_mon_cache RETURNS INT SONAME 'ha_spider.so';
SELECT spider_flush_table_mon_cache ();
spider_flush_table_mon_cache ()

6
storage/spider/mysql-test/spider/bugfix/t/mdev_30727.test
View File

@@ -1,13 +1,13 @@
CREATE FUNCTION spider_direct_sql RETURNS INT SONAME 'ha_spider.so';
--error ER_PLUGIN_IS_NOT_LOADED
--error ER_CANT_INITIALIZE_UDF
SELECT spider_direct_sql ('SELECT * FROM s','a','srv "b"');
CREATE FUNCTION spider_bg_direct_sql RETURNS INT SONAME 'ha_spider.so';
--error ER_PLUGIN_IS_NOT_LOADED
--error ER_CANT_INITIALIZE_UDF
SELECT spider_bg_direct_sql ('SELECT * FROM s','a','srv "b"');
CREATE FUNCTION spider_copy_tables RETURNS INT SONAME 'ha_spider.so';
--error ER_PLUGIN_IS_NOT_LOADED
--error ER_CANT_INITIALIZE_UDF
SELECT spider_copy_tables ('t', '0', '0');
# spider_flush_table_mon_cache does not require spider init to function