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Fix for BUG#13549 "Server crash with nested stored procedures

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if inner routine has more local variables than outer one, and
one of its last variables was used as argument to NOT operator".

THD::spcont was non-0 when we were parsing stored routine/trigger
definition during execution of another stored routine. This confused
methods of Item_splocal and forced them use wrong runtime context.
Fix ensures that we always have THD::spcont equal to zero during
routine/trigger body parsing. This also allows to avoid problems
with errors which occur during parsing and SQL exception handlers.
This commit is contained in:
bell@sanja.is.com.ua
2005-11-23 00:50:37 +02:00
parent debff3e632
commit 2bcd68973b
16 changed files with 178 additions and 27 deletions
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38
sql/protocol.cc
View File

@ -494,7 +494,7 @@ void Protocol::init(THD *thd_arg)
thd=thd_arg;
packet= &thd->packet;
convert= &thd->convert_buffer;
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
field_types= 0;
#endif
}
@ -547,7 +547,7 @@ bool Protocol::send_fields(List<Item> *list, uint flags)
(void) my_net_write(&thd->net, buff,(uint) (pos-buff));
}
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
field_types= (enum_field_types*) thd->alloc(sizeof(field_types) *
list->elements);
uint count= 0;
@ -644,7 +644,7 @@ bool Protocol::send_fields(List<Item> *list, uint flags)
item->send(&prot, &tmp); // Send default value
if (prot.write())
break; /* purecov: inspected */
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
field_types[count++]= field.type;
#endif
}
@ -728,14 +728,14 @@ bool Protocol::store(I_List<i_string>* str_list)
void Protocol_simple::prepare_for_resend()
{
packet->length(0);
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
field_pos= 0;
#endif
}
bool Protocol_simple::store_null()
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
field_pos++;
#endif
char buff[1];
@ -769,7 +769,7 @@ bool Protocol::store_string_aux(const char *from, uint length,
bool Protocol_simple::store(const char *from, uint length,
CHARSET_INFO *fromcs, CHARSET_INFO *tocs)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_DECIMAL ||
field_types[field_pos] == MYSQL_TYPE_BIT ||
@ -786,7 +786,7 @@ bool Protocol_simple::store(const char *from, uint length,
CHARSET_INFO *fromcs)
{
CHARSET_INFO *tocs= this->thd->variables.character_set_results;
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_DECIMAL ||
field_types[field_pos] == MYSQL_TYPE_BIT ||
@ -801,7 +801,7 @@ bool Protocol_simple::store(const char *from, uint length,
bool Protocol_simple::store_tiny(longlong from)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 || field_types[field_pos] == MYSQL_TYPE_TINY);
field_pos++;
#endif
@ -813,7 +813,7 @@ bool Protocol_simple::store_tiny(longlong from)
bool Protocol_simple::store_short(longlong from)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_YEAR ||
field_types[field_pos] == MYSQL_TYPE_SHORT);
@ -827,7 +827,7 @@ bool Protocol_simple::store_short(longlong from)
bool Protocol_simple::store_long(longlong from)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_INT24 ||
field_types[field_pos] == MYSQL_TYPE_LONG);
@ -841,7 +841,7 @@ bool Protocol_simple::store_long(longlong from)
bool Protocol_simple::store_longlong(longlong from, bool unsigned_flag)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_LONGLONG);
field_pos++;
@ -856,7 +856,7 @@ bool Protocol_simple::store_longlong(longlong from, bool unsigned_flag)
bool Protocol_simple::store_decimal(const my_decimal *d)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_NEWDECIMAL);
field_pos++;
@ -870,7 +870,7 @@ bool Protocol_simple::store_decimal(const my_decimal *d)
bool Protocol_simple::store(float from, uint32 decimals, String *buffer)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_FLOAT);
field_pos++;
@ -882,7 +882,7 @@ bool Protocol_simple::store(float from, uint32 decimals, String *buffer)
bool Protocol_simple::store(double from, uint32 decimals, String *buffer)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_DOUBLE);
field_pos++;
@ -896,7 +896,7 @@ bool Protocol_simple::store(Field *field)
{
if (field->is_null())
return store_null();
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
field_pos++;
#endif
char buff[MAX_FIELD_WIDTH];
@ -917,7 +917,7 @@ bool Protocol_simple::store(Field *field)
bool Protocol_simple::store(TIME *tm)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_DATETIME ||
field_types[field_pos] == MYSQL_TYPE_TIMESTAMP);
@ -940,7 +940,7 @@ bool Protocol_simple::store(TIME *tm)
bool Protocol_simple::store_date(TIME *tm)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_DATE);
field_pos++;
@ -959,7 +959,7 @@ bool Protocol_simple::store_date(TIME *tm)
bool Protocol_simple::store_time(TIME *tm)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_TIME);
field_pos++;
@ -1084,7 +1084,7 @@ bool Protocol_prep::store_longlong(longlong from, bool unsigned_flag)
bool Protocol_prep::store_decimal(const my_decimal *d)
{
#ifndef DEBUG_OFF
#ifndef DBUG_OFF
DBUG_ASSERT(field_types == 0 ||
field_types[field_pos] == MYSQL_TYPE_NEWDECIMAL);
field_pos++;