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Backported fix for protecting ecpg against applications freeing strings to 8.4.

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This commit is contained in:
Michael Meskes 2010-01-08 09:22:44 +00:00
parent ac7fc991c0
commit 6e417452e3
1 changed files with 4 additions and 2 deletions
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6
src/interfaces/ecpg/ecpglib/prepare.c
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@ -1,4 +1,4 @@
/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/prepare.c,v 1.31.2.1 2009/07/22 11:07:04 mha Exp $ */
/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/prepare.c,v 1.31.2.2 2010/01/08 09:22:44 meskes Exp $ */
#define POSTGRES_ECPG_INTERNAL
#include "postgres_fe.h"
@ -152,7 +152,7 @@ ECPGprepare(int lineno, const char *connection_name, const bool questionmarks, c
replace_variables(&(stmt->command), lineno);
/* add prepared statement to our list */
this->name = (char *) name;
this->name = ecpg_strdup(name, lineno);
this->stmt = stmt;
/* and finally really prepare the statement */
@ -160,6 +160,7 @@ ECPGprepare(int lineno, const char *connection_name, const bool questionmarks, c
if (!ecpg_check_PQresult(query, stmt->lineno, stmt->connection->connection, stmt->compat))
{
ecpg_free(stmt->command);
ecpg_free(this->name);
ecpg_free(this);
ecpg_free(stmt);
return false;
@ -238,6 +239,7 @@ deallocate_one(int lineno, enum COMPAT_MODE c, struct connection * con, struct p
/* okay, free all the resources */
ecpg_free(this->stmt->command);
ecpg_free(this->stmt);
ecpg_free(this->name);
if (prev != NULL)
prev->next = this->next;
else