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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#include "win32_crtdbg.h"
#if defined(GIT_MSVC_CRTDBG)
#include "win32/w32_crtdbg_stacktrace.h"
static void *crtdbg__malloc(size_t len, const char *file, int line)
{
void *ptr = _malloc_dbg(len, _NORMAL_BLOCK, git_win32__crtdbg_stacktrace(1,file), line);
if (!ptr) git_error_set_oom();
return ptr;
}
static void *crtdbg__calloc(size_t nelem, size_t elsize, const char *file, int line)
{
void *ptr = _calloc_dbg(nelem, elsize, _NORMAL_BLOCK, git_win32__crtdbg_stacktrace(1,file), line);
if (!ptr) git_error_set_oom();
return ptr;
}
static char *crtdbg__strdup(const char *str, const char *file, int line)
{
char *ptr = _strdup_dbg(str, _NORMAL_BLOCK, git_win32__crtdbg_stacktrace(1,file), line);
if (!ptr) git_error_set_oom();
return ptr;
}
static char *crtdbg__strndup(const char *str, size_t n, const char *file, int line)
{
size_t length = 0, alloclength;
char *ptr;
length = p_strnlen(str, n);
if (GIT_ADD_SIZET_OVERFLOW(&alloclength, length, 1) ||
!(ptr = crtdbg__malloc(alloclength, file, line)))
return NULL;
if (length)
memcpy(ptr, str, length);
ptr[length] = '\0';
return ptr;
}
static char *crtdbg__substrdup(const char *start, size_t n, const char *file, int line)
{
char *ptr;
size_t alloclen;
if (GIT_ADD_SIZET_OVERFLOW(&alloclen, n, 1) ||
!(ptr = crtdbg__malloc(alloclen, file, line)))
return NULL;
memcpy(ptr, start, n);
ptr[n] = '\0';
return ptr;
}
static void *crtdbg__realloc(void *ptr, size_t size, const char *file, int line)
{
void *new_ptr = _realloc_dbg(ptr, size, _NORMAL_BLOCK, git_win32__crtdbg_stacktrace(1,file), line);
if (!new_ptr) git_error_set_oom();
return new_ptr;
}
static void *crtdbg__reallocarray(void *ptr, size_t nelem, size_t elsize, const char *file, int line)
{
size_t newsize;
if (GIT_MULTIPLY_SIZET_OVERFLOW(&newsize, nelem, elsize))
return NULL;
return crtdbg__realloc(ptr, newsize, file, line);
}
static void *crtdbg__mallocarray(size_t nelem, size_t elsize, const char *file, int line)
{
return crtdbg__reallocarray(NULL, nelem, elsize, file, line);
}
static void crtdbg__free(void *ptr)
{
free(ptr);
}
int git_win32_crtdbg_init_allocator(git_allocator *allocator)
{
allocator->gmalloc = crtdbg__malloc;
allocator->gcalloc = crtdbg__calloc;
allocator->gstrdup = crtdbg__strdup;
allocator->gstrndup = crtdbg__strndup;
allocator->gsubstrdup = crtdbg__substrdup;
allocator->grealloc = crtdbg__realloc;
allocator->greallocarray = crtdbg__reallocarray;
allocator->gmallocarray = crtdbg__mallocarray;
allocator->gfree = crtdbg__free;
return 0;
}
#else
int git_win32_crtdbg_init_allocator(git_allocator *allocator)
{
GIT_UNUSED(allocator);
git_error_set(GIT_EINVALID, "crtdbg memory allocator not available");
return -1;
}
#endif
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