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Fix for BUG#15018 "valgrind error in Rpl_filter (uninitalized memory - could crash)".

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The code was reading a HASH or DYNAMIC_ARRAY which may be uninited (difference from 5.0
is that those vars were always zeroed in 5.0 because were static globals, while they are new'd in 5.1).
This commit is contained in:
guilhem@mysql.com
2005-11-17 15:58:55 +01:00
parent 6c4a4d18cb
commit 2c8d2ebe6f
2 changed files with 31 additions and 19 deletions
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41
sql/rpl_filter.cc
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@ -449,30 +449,37 @@ Rpl_filter::free_string_array(DYNAMIC_ARRAY *a)
*/
void
Rpl_filter::table_rule_ent_hash_to_str(String* s, HASH* h)
Rpl_filter::table_rule_ent_hash_to_str(String* s, HASH* h, bool inited)
{
s->length(0);
for (uint i= 0; i < h->records; i++)
if (inited)
{
TABLE_RULE_ENT* e= (TABLE_RULE_ENT*) hash_element(h, i);
if (s->length())
s->append(',');
s->append(e->db,e->key_len);
for (uint i= 0; i < h->records; i++)
{
TABLE_RULE_ENT* e= (TABLE_RULE_ENT*) hash_element(h, i);
if (s->length())
s->append(',');
s->append(e->db,e->key_len);
}
}
}
void
Rpl_filter::table_rule_ent_dynamic_array_to_str(String* s, DYNAMIC_ARRAY* a)
Rpl_filter::table_rule_ent_dynamic_array_to_str(String* s, DYNAMIC_ARRAY* a,
bool inited)
{
s->length(0);
for (uint i= 0; i < a->elements; i++)
if (inited)
{
TABLE_RULE_ENT* e;
get_dynamic(a, (gptr)&e, i);
if (s->length())
s->append(',');
s->append(e->db,e->key_len);
for (uint i= 0; i < a->elements; i++)
{
TABLE_RULE_ENT* e;
get_dynamic(a, (gptr)&e, i);
if (s->length())
s->append(',');
s->append(e->db,e->key_len);
}
}
}
@ -480,28 +487,28 @@ Rpl_filter::table_rule_ent_dynamic_array_to_str(String* s, DYNAMIC_ARRAY* a)
void
Rpl_filter::get_do_table(String* str)
{
table_rule_ent_hash_to_str(str, &do_table);
table_rule_ent_hash_to_str(str, &do_table, do_table_inited);
}
void
Rpl_filter::get_ignore_table(String* str)
{
table_rule_ent_hash_to_str(str, &ignore_table);
table_rule_ent_hash_to_str(str, &ignore_table, ignore_table_inited);
}
void
Rpl_filter::get_wild_do_table(String* str)
{
table_rule_ent_dynamic_array_to_str(str, &wild_do_table);
table_rule_ent_dynamic_array_to_str(str, &wild_do_table, wild_do_table_inited);
}
void
Rpl_filter::get_wild_ignore_table(String* str)
{
table_rule_ent_dynamic_array_to_str(str, &wild_ignore_table);
table_rule_ent_dynamic_array_to_str(str, &wild_ignore_table, wild_ignore_table_inited);
}