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	None of the test cases in tests_suite_memory_buffer_alloc actually need MBEDTLS_MEMORY_DEBUG. Some have additional checks when MBEDTLS_MEMORY_DEBUG but all are useful even without it. So enable them all and #ifdef out the parts that require DEBUG.
		
			
				
	
	
		
			280 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			280 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* BEGIN_HEADER */
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#include "mbedtls/memory_buffer_alloc.h"
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#define TEST_SUITE_MEMORY_BUFFER_ALLOC
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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 * depends_on:MBEDTLS_MEMORY_BUFFER_ALLOC_C
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 * END_DEPENDENCIES
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 */
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/* BEGIN_SUITE_HELPERS */
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static int check_pointer( void *p )
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{
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    if( p == NULL )
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        return( -1 );
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    if( (size_t) p % MBEDTLS_MEMORY_ALIGN_MULTIPLE != 0 )
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        return( -1 );
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    return( 0 );
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}
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/* END_SUITE_HELPERS */
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/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
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void mbedtls_memory_buffer_alloc_self_test(  )
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{
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    TEST_ASSERT( mbedtls_memory_buffer_alloc_self_test( 1 ) == 0 );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void memory_buffer_alloc_free_alloc( int a_bytes, int b_bytes, int c_bytes,
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                                     int d_bytes, int free_a, int free_b,
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                                     int free_c, int free_d, int e_bytes,
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                                     int f_bytes )
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{
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    unsigned char buf[1024];
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    unsigned char *ptr_a = NULL, *ptr_b = NULL, *ptr_c = NULL, *ptr_d = NULL,
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                    *ptr_e = NULL, *ptr_f = NULL;
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#if defined(MBEDTLS_MEMORY_DEBUG)
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    size_t reported_blocks;
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    size_t reported_bytes;
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#endif
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    size_t allocated_bytes = 0;
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    mbedtls_memory_buffer_alloc_init( buf, sizeof( buf ) );
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    mbedtls_memory_buffer_set_verify( MBEDTLS_MEMORY_VERIFY_ALWAYS );
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    if( a_bytes > 0 )
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    {
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        ptr_a = mbedtls_calloc( a_bytes, sizeof(char) );
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        TEST_ASSERT( check_pointer( ptr_a ) == 0 );
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        allocated_bytes += a_bytes * sizeof(char);
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    }
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    if( b_bytes > 0 )
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    {
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        ptr_b = mbedtls_calloc( b_bytes, sizeof(char) );
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        TEST_ASSERT( check_pointer( ptr_b ) == 0 );
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        allocated_bytes += b_bytes * sizeof(char);
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    }
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    if( c_bytes > 0 )
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    {
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        ptr_c = mbedtls_calloc( c_bytes, sizeof(char) );
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        TEST_ASSERT( check_pointer( ptr_c ) == 0 );
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        allocated_bytes += c_bytes * sizeof(char);
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    }
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    if( d_bytes > 0 )
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    {
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        ptr_d = mbedtls_calloc( d_bytes, sizeof(char) );
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        TEST_ASSERT( check_pointer( ptr_d ) == 0 );
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        allocated_bytes += d_bytes * sizeof(char);
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    }
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#if defined(MBEDTLS_MEMORY_DEBUG)
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    mbedtls_memory_buffer_alloc_cur_get( &reported_bytes, &reported_blocks );
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    TEST_ASSERT( reported_bytes == allocated_bytes );
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#endif
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    if( free_a )
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    {
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        mbedtls_free( ptr_a );
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        ptr_a = NULL;
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        TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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        allocated_bytes -= a_bytes * sizeof(char);
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    }
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    if( free_b )
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    {
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        mbedtls_free( ptr_b );
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        ptr_b = NULL;
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        TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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        allocated_bytes -= b_bytes * sizeof(char);
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    }
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    if( free_c )
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    {
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        mbedtls_free( ptr_c );
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        ptr_c = NULL;
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        TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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        allocated_bytes -= c_bytes * sizeof(char);
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    }
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    if( free_d )
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    {
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        mbedtls_free( ptr_d );
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        ptr_d = NULL;
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        TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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        allocated_bytes -= d_bytes * sizeof(char);
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    }
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#if defined(MBEDTLS_MEMORY_DEBUG)
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    mbedtls_memory_buffer_alloc_cur_get( &reported_bytes, &reported_blocks );
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    TEST_ASSERT( reported_bytes == allocated_bytes );
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#endif
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    if( e_bytes > 0 )
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    {
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        ptr_e = mbedtls_calloc( e_bytes, sizeof(char) );
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        TEST_ASSERT( check_pointer( ptr_e ) == 0 );
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    }
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    if( f_bytes > 0 )
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    {
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        ptr_f = mbedtls_calloc( f_bytes, sizeof(char) );
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        TEST_ASSERT( check_pointer( ptr_f ) == 0 );
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    }
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    /* Once blocks are reallocated, the block allocated to the memory request
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     * may be bigger than the request itself, which is indicated by the reported
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     * bytes, and makes it hard to know what the reported size will be, so
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     * we don't check the size after blocks have been reallocated. */
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    if( ptr_a != NULL )
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    {
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        mbedtls_free( ptr_a );
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        ptr_a = NULL;
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        TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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    }
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    if( ptr_b != NULL )
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    {
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        mbedtls_free( ptr_b );
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        ptr_b = NULL;
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        TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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    }
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    if( ptr_c != NULL )
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    {
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        mbedtls_free( ptr_c );
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        ptr_c = NULL;
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        TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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    }
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    if( ptr_d != NULL )
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    {
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        mbedtls_free( ptr_d );
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        ptr_d = NULL;
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        TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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    }
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    if( ptr_e != NULL )
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    {
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        mbedtls_free( ptr_e );
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        ptr_e = NULL;
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        TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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    }
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    if( ptr_f != NULL )
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    {
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        mbedtls_free( ptr_f );
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        ptr_f = NULL;
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    }
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#if defined(MBEDTLS_MEMORY_DEBUG)
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    mbedtls_memory_buffer_alloc_cur_get( &reported_bytes, &reported_blocks );
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    TEST_ASSERT( reported_bytes == 0 );
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#endif
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    TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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exit:
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    mbedtls_memory_buffer_alloc_free( );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void memory_buffer_alloc_oom_test(  )
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{
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    unsigned char buf[1024];
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    unsigned char *ptr_a = NULL, *ptr_b = NULL, *ptr_c = NULL;
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#if defined(MBEDTLS_MEMORY_DEBUG)
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    size_t reported_blocks, reported_bytes;
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#endif
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    (void)ptr_c;
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    mbedtls_memory_buffer_alloc_init( buf, sizeof( buf ) );
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    mbedtls_memory_buffer_set_verify( MBEDTLS_MEMORY_VERIFY_ALWAYS );
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    ptr_a = mbedtls_calloc( 432, sizeof(char) );
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    TEST_ASSERT( check_pointer( ptr_a ) == 0 );
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    ptr_b = mbedtls_calloc( 432, sizeof(char) );
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    TEST_ASSERT( check_pointer( ptr_b ) == 0 );
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    ptr_c = mbedtls_calloc( 431, sizeof(char) );
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    TEST_ASSERT( ptr_c == NULL );
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#if defined(MBEDTLS_MEMORY_DEBUG)
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    mbedtls_memory_buffer_alloc_cur_get( &reported_bytes, &reported_blocks );
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    TEST_ASSERT( reported_bytes >= 864 && reported_bytes <= sizeof(buf) );
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#endif
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    mbedtls_free( ptr_a );
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    ptr_a = NULL;
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    TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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    mbedtls_free( ptr_b );
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    ptr_b = NULL;
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    TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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#if defined(MBEDTLS_MEMORY_DEBUG)
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    mbedtls_memory_buffer_alloc_cur_get( &reported_bytes, &reported_blocks );
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    TEST_ASSERT( reported_bytes == 0 );
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#endif
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    TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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exit:
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    mbedtls_memory_buffer_alloc_free( );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void memory_buffer_heap_too_small( )
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{
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    unsigned char buf[1];
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    mbedtls_memory_buffer_alloc_init( buf, sizeof( buf ) );
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    /* With MBEDTLS_MEMORY_DEBUG enabled, this prints a message
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     * "FATAL: verification of first header failed".
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     */
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    TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() != 0 );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void memory_buffer_underalloc( )
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{
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    unsigned char buf[100];
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    size_t i;
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    mbedtls_memory_buffer_alloc_init( buf, sizeof( buf ) );
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    for( i = 1; i < MBEDTLS_MEMORY_ALIGN_MULTIPLE; i++ )
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    {
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        TEST_ASSERT( mbedtls_calloc( 1,
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                     (size_t)-( MBEDTLS_MEMORY_ALIGN_MULTIPLE - i ) ) == NULL );
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        TEST_ASSERT( mbedtls_memory_buffer_alloc_verify() == 0 );
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    }
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exit:
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    mbedtls_memory_buffer_alloc_free();
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}
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/* END_CASE */
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