29 lines
900 B
C
29 lines
900 B
C
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// Shim for memset_explicit on MinGW which doesn't provide it
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// This is needed for libsodium's secure memory clearing
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#if defined(_WIN32) && defined(__MINGW32__)
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#include <string.h>
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// memset_explicit is available in Windows 8+ but MinGW headers don't always declare it
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// Provide a fallback implementation using SecureZeroMemory if available,
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// or a volatile memset to prevent compiler optimization
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void *memset_explicit(void *s, int c, size_t n) {
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// Try to use Windows API if available
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#ifdef _WIN32_WINNT
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#if _WIN32_WINNT >= 0x0602 // Windows 8+
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extern void *memset_s(void *, size_t, int, size_t);
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return memset_s(s, n, c, n);
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#endif
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#endif
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// Fallback: use volatile to prevent optimization
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volatile unsigned char *p = (volatile unsigned char *)s;
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while (n--) {
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*p++ = (unsigned char)c;
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}
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return s;
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}
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#endif
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