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Make cbt_generate_sample use crypto_rand_double()

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Possible workaround for bug 1139, if anybody cares.
This commit is contained in:
Nick Mathewson
2010-06-22 21:31:31 -04:00
parent 006e2e8620
commit b111a7cd9c
2 changed files with 13 additions and 6 deletions
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src/common/crypto.c
+9 -4
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@@ -2065,10 +2065,15 @@ crypto_rand_double(void)
/* We just use an unsigned int here; we don't really care about getting
* more than 32 bits of resolution */
unsigned int uint;
do {
crypto_rand((char*)&uint, sizeof(uint));
} while (uint == UINT_MAX);
return ((double)uint) / (double)UINT_MAX;
crypto_rand((char*)&uint, sizeof(uint));
#if SIZEOF_INT == 4
#define UINT_MAX_AS_DOUBLE 4294967296.0
#elif SIZEOF_INT == 8
#define UINT_MAX_AS_DOUBLE 1.8446744073709552e+19
#else
#error SIZEOF_INT is neither 4 nor 8
#endif
return ((double)uint) / UINT_MAX_AS_DOUBLE;
}
/** Generate and return a new random hostname starting with <b>prefix</b>,