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pk_set_type() cannot be used to reset key type

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This commit is contained in:
Manuel Pégourié-Gonnard
2013-07-09 10:21:34 +02:00
committed by Paul Bakker
parent 0a64e8f1fd
commit 374e4b87d4
4 changed files with 24 additions and 2 deletions
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8
library/pk.c
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@ -88,6 +88,12 @@ int pk_set_type( pk_context *ctx, pk_type_t type )
{
size_t size = 0;
if( ctx->type == type )
return( 0 );
if( ctx->type != POLARSSL_PK_NONE )
return( POLARSSL_ERR_PK_TYPE_MISMATCH );
switch( type )
{
#if defined(POLARSSL_RSA_C)
@ -104,7 +110,7 @@ int pk_set_type( pk_context *ctx, pk_type_t type )
#endif
case POLARSSL_PK_NONE:
; /* Should not happen */
; /* Cannot happen, but the cmpiler doesn't know */
}
if( ( ctx->data = malloc( size ) ) == NULL )