5079590438

Committed 25 May 2023 12:28PM UTC coverage: 92.228% (+0.5%) from 91.723%

Build # 5079590438

Build Type

Pull #3502

github

Pull Request Pull Request #3502: Apply clang-format to the codebase

Run Details

75589 of 81959 relevant lines covered (92.23%)

12139530.51 hits per line

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86.36

/src/lib/utils/mem_ops.cpp

/*
* (C) 2017 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/mem_ops.h>

#include <botan/internal/ct_utils.h>
#include <botan/internal/safeint.h>
#include <cstdlib>
#include <new>

#if defined(BOTAN_HAS_LOCKING_ALLOCATOR)
   #include <botan/internal/locking_allocator.h>
#endif

namespace Botan {

BOTAN_MALLOC_FN void* allocate_memory(size_t elems, size_t elem_size) {
   if(elems == 0 || elem_size == 0)
      return nullptr;

   // Some calloc implementations do not check for overflow (?!?)

   if(!BOTAN_CHECKED_MUL(elems, elem_size).has_value())
      throw std::bad_alloc();

#if defined(BOTAN_HAS_LOCKING_ALLOCATOR)
   if(void* p = mlock_allocator::instance().allocate(elems, elem_size))
      return p;
#endif

#if defined(BOTAN_TARGET_OS_HAS_ALLOC_CONCEAL)
   void* ptr = ::calloc_conceal(elems, elem_size);
#else
   void* ptr = std::calloc(elems, elem_size);  // NOLINT(*-no-malloc)
#endif
   if(!ptr) [[unlikely]]
      throw std::bad_alloc();
   return ptr;
}

void deallocate_memory(void* p, size_t elems, size_t elem_size) {
   if(p == nullptr) [[unlikely]]
      return;

   secure_scrub_memory(p, elems * elem_size);

#if defined(BOTAN_HAS_LOCKING_ALLOCATOR)
   if(mlock_allocator::instance().deallocate(p, elems, elem_size))
      return;
#endif

   std::free(p);  // NOLINT(*-no-malloc)
}

void initialize_allocator() {
#if defined(BOTAN_HAS_LOCKING_ALLOCATOR)
   mlock_allocator::instance();
#endif
}

uint8_t ct_compare_u8(const uint8_t x[], const uint8_t y[], size_t len) {
   volatile uint8_t difference = 0;

   for(size_t i = 0; i != len; ++i)
      difference = difference | (x[i] ^ y[i]);

   return CT::Mask<uint8_t>::is_zero(difference).value();
}

}

1	/*
2	* (C) 2017 Jack Lloyd
3	*
4	* Botan is released under the Simplified BSD License (see license.txt)
5	*/
6
7	#include <botan/mem_ops.h>
8
9	#include <botan/internal/ct_utils.h>
10	#include <botan/internal/safeint.h>
11	#include <cstdlib>
12	#include <new>
13
14	#if defined(BOTAN_HAS_LOCKING_ALLOCATOR)
15	#include <botan/internal/locking_allocator.h>
16	#endif
17
18	namespace Botan {
19
20	BOTAN_MALLOC_FN void* allocate_memory(size_t elems, size_t elem_size) {	146,314,790✔
21	if(elems == 0 \|\| elem_size == 0)	146,314,790✔
22	return nullptr;
23
24	// Some calloc implementations do not check for overflow (?!?)
25
26	if(!BOTAN_CHECKED_MUL(elems, elem_size).has_value())	146,314,790✔
27	throw std::bad_alloc();	×
28
29	#if defined(BOTAN_HAS_LOCKING_ALLOCATOR)
30	if(void* p = mlock_allocator::instance().allocate(elems, elem_size))	146,314,790✔
31	return p;
32	#endif
33
34	#if defined(BOTAN_TARGET_OS_HAS_ALLOC_CONCEAL)
35	void* ptr = ::calloc_conceal(elems, elem_size);
36	#else
37	void* ptr = std::calloc(elems, elem_size); // NOLINT(*-no-malloc)	69,074,712✔
38	#endif
39	if(!ptr) [[unlikely]]	69,074,712✔
40	throw std::bad_alloc();	×
41	return ptr;
42	}
43
44	void deallocate_memory(void* p, size_t elems, size_t elem_size) {	146,314,308✔
45	if(p == nullptr) [[unlikely]]	146,314,308✔
46	return;	×
47
48	secure_scrub_memory(p, elems * elem_size);	146,314,308✔
49
50	#if defined(BOTAN_HAS_LOCKING_ALLOCATOR)
51	if(mlock_allocator::instance().deallocate(p, elems, elem_size))	146,314,308✔
52	return;
53	#endif
54
55	std::free(p); // NOLINT(*-no-malloc)	69,074,567✔
56	}
57
58	void initialize_allocator() {	457✔
59	#if defined(BOTAN_HAS_LOCKING_ALLOCATOR)
60	mlock_allocator::instance();	457✔
61	#endif
62	}	457✔
63
64	uint8_t ct_compare_u8(const uint8_t x[], const uint8_t y[], size_t len) {	132,098✔
65	volatile uint8_t difference = 0;	132,098✔
66
67	for(size_t i = 0; i != len; ++i)	3,368,382✔
68	difference = difference \| (x[i] ^ y[i]);	3,236,284✔
69
70	return CT::Mask<uint8_t>::is_zero(difference).value();	132,098✔
71	}
72
73	}

randombit / botan / 5079590438

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