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Q258000 workaround, like crypto++

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This commit is contained in:
Glenn Maynard
2007-01-24 22:32:59 +00:00
parent 853c84c0a5
commit c93f83c0ac
1 changed files with 12 additions and 8 deletions
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stepmania/src/libtomcrypt/src/prngs/rng_get_bytes.c
+12 -8
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@@ -99,18 +99,22 @@ static unsigned long rng_ansic(unsigned char *buf, unsigned long len,
static unsigned long rng_win32(unsigned char *buf, unsigned long len,
void (*callback)(void))
{
HCRYPTPROV hProv = 0;
if (!CryptAcquireContext(&hProv, NULL, MS_DEF_PROV, PROV_RSA_FULL,
(CRYPT_VERIFYCONTEXT | CRYPT_MACHINE_KEYSET)) &&
!CryptAcquireContext (&hProv, NULL, MS_DEF_PROV, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT | CRYPT_MACHINE_KEYSET | CRYPT_NEWKEYSET))
return 0;
// work around Q258000
static HCRYPTPROV hProv = 0;
if (!hProv)
{
if (!CryptAcquireContext(&hProv, NULL, MS_DEF_PROV, PROV_RSA_FULL,
(CRYPT_VERIFYCONTEXT | CRYPT_MACHINE_KEYSET)) &&
!CryptAcquireContext (&hProv, NULL, MS_DEF_PROV, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT | CRYPT_MACHINE_KEYSET | CRYPT_NEWKEYSET))
return 0;
}
if (CryptGenRandom(hProv, len, buf) == TRUE) {
CryptReleaseContext(hProv, 0);
// CryptReleaseContext(hProv, 0);
return len;
} else {
CryptReleaseContext(hProv, 0);
// CryptReleaseContext(hProv, 0);
return 0;
}
}