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Don't load GOST ENGINE if it is already loaded.

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Multiple copies of the ENGINE will cause problems when it is cleaned up as
the methods are stored in static structures which will be overwritten and
freed up more than once.

Set static methods to NULL when the ENGINE is freed so it can be reloaded.
This commit is contained in:
Dr. Stephen Henson 2012-09-01 11:30:35 +00:00
parent 3ebe87473c
commit 957c7c0e88
1 changed files with 11 additions and 1 deletions
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12
engines/ccgost/gost_eng.c
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@ -64,6 +64,13 @@ static int gost_engine_finish(ENGINE *e)
static int gost_engine_destroy(ENGINE *e)
{
gost_param_free();
pmeth_GostR3410_94 = NULL;
pmeth_GostR3410_2001 = NULL;
pmeth_Gost28147_MAC = NULL;
ameth_GostR3410_94 = NULL;
ameth_GostR3410_2001 = NULL;
ameth_Gost28147_MAC = NULL;
return 1;
}
@ -263,7 +270,10 @@ static ENGINE *engine_gost(void)
void ENGINE_load_gost(void)
{
ENGINE *toadd =engine_gost();
ENGINE *toadd;
if (pmeth_GostR3410_94)
return;
toadd = engine_gost();
if (!toadd) return;
ENGINE_add(toadd);
ENGINE_free(toadd);