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Add helper function zero_malloc for tests

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Manuel Pégourié-Gonnard 2014-06-13 21:09:26 +02:00
parent 4d2a8eb6ff
commit 0dc5e0d80b
2 changed files with 25 additions and 3 deletions
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24
tests/suites/helpers.function
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@ -101,12 +101,33 @@ static void hexify(unsigned char *obuf, const unsigned char *ibuf, int len)
}
}
/**
* Allocate and zeroize a buffer.
*
* If the size if zero, a pointer to a zeroized 1-byte buffer is returned.
*
* For convenience, dies if allocation fails.
*/
static unsigned char *zero_alloc( size_t len )
{
void *p;
size_t actual_len = len != 0 ? len : 1;
assert( ( p = polarssl_malloc( actual_len ) ) != NULL );
memset( p, 0x00, actual_len );
return( p );
}
/**
* Allocate and fill a buffer from hex data.
*
* The buffer is sized exactly as needed. This allows to detect buffer
* overruns (including overreads) when running the test suite under valgrind.
*
* If the size if zero, a pointer to a zeroized 1-byte buffer is returned.
*
* For convenience, dies if allocation fails.
*/
static unsigned char *unhexify_alloc( const char *ibuf, size_t *olen )
@ -115,6 +136,9 @@ static unsigned char *unhexify_alloc( const char *ibuf, size_t *olen )
*olen = strlen(ibuf) / 2;
if( *olen == 0 )
return( zero_alloc( *olen ) );
assert( ( obuf = polarssl_malloc( *olen ) ) != NULL );
(void) unhexify( obuf, ibuf );

4
tests/suites/test_suite_pkcs5.function
View file

@ -59,9 +59,7 @@ void pkcs5_pbes2( int params_tag, char *params_hex, char *pw_hex,
data = unhexify_alloc( data_hex, &data_len );
pw = unhexify_alloc( pw_hex, &pw_len );
ref_out = unhexify_alloc( ref_out_hex, &ref_out_len );
my_out = polarssl_malloc( ref_out_len != 0 ? ref_out_len : 1 );
TEST_ASSERT( my_out != NULL );
memset( my_out, 0, ref_out_len );
my_out = zero_alloc( ref_out_len );
my_ret = pkcs5_pbes2( &params, PKCS5_DECRYPT,
pw, pw_len, data, data_len, my_out );