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mdbx-windows: не расходуем стек под буферы для wchar-преобразования путей.

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Леонид Юрьев (Leonid Yuriev)
2023-02-08 00:28:24 +03:00
parent 2a41b24876
commit 351a30f186
2 changed files with 24 additions and 12 deletions
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12
src/osal.h
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@@ -765,12 +765,16 @@ MDBX_INTERNAL_FUNC size_t osal_mb2w(wchar_t *dst, size_t dst_n, const char *src,
const char *const from_tmp = (FROM); \
const size_t from_mblen = strlen(from_tmp); \
const size_t to_wlen = osal_mb2w(nullptr, 0, from_tmp, from_mblen); \
if (to_wlen < 1 || to_wlen > /* MAX_PATH */ INT16_MAX) \
if (unlikely(to_wlen < 1 || to_wlen > /* MAX_PATH */ INT16_MAX)) \
return ERROR_INVALID_NAME; \
wchar_t *const to_tmp = _alloca((to_wlen + 1) * sizeof(wchar_t)); \
if (to_wlen + 1 != \
osal_mb2w(to_tmp, to_wlen + 1, from_tmp, from_mblen + 1)) \
wchar_t *const to_tmp = osal_malloc((to_wlen + 1) * sizeof(wchar_t)); \
if (unlikely(!to_tmp)) \
return MDBX_ENOMEM; \
if (unlikely(to_wlen + 1 != \
osal_mb2w(to_tmp, to_wlen + 1, from_tmp, from_mblen + 1))) { \
osal_free(to_tmp); \
return ERROR_INVALID_NAME; \
} \
(TO) = to_tmp; \
} while (0)