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This commit is contained in:
Adam Ierymenko 2019-07-17 16:53:33 -05:00
parent fe2215df00
commit 7e105343e2
5 changed files with 273 additions and 30 deletions
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28
node/Utils.hpp
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@ -246,6 +246,9 @@ public:
*/
static void getSecureRandom(void *buf,unsigned int bytes);
static int Utils::b32d(const char *encoded, uint8_t *result, int bufSize);
static int Utils::b32e(const uint8_t *data,int length,char *result,int bufSize);
/**
* Tokenize a string (alias for strtok_r or strtok_s depending on platform)
*
@ -442,35 +445,10 @@ public:
}
static inline int64_t ntoh(int64_t n) { return (int64_t)ntoh((uint64_t)n); }
static inline void base325to8(const uint8_t *const in,char *const out)
{
out[0] = BASE32CHARS[(in[0]) >> 3];
out[1] = BASE32CHARS[(in[0] & 0x07) << 2 | (in[1] & 0xc0) >> 6];
out[2] = BASE32CHARS[(in[1] & 0x3e) >> 1];
out[3] = BASE32CHARS[(in[1] & 0x01) << 4 | (in[2] & 0xf0) >> 4];
out[4] = BASE32CHARS[(in[2] & 0x0f) << 1 | (in[3] & 0x80) >> 7];
out[5] = BASE32CHARS[(in[3] & 0x7c) >> 2];
out[6] = BASE32CHARS[(in[3] & 0x03) << 3 | (in[4] & 0xe0) >> 5];
out[7] = BASE32CHARS[(in[4] & 0x1f)];
}
static inline void base328to5(const char *const in,uint8_t *const out)
{
out[0] = ((BASE32BITS[(unsigned int)in[0]]) << 3) | (BASE32BITS[(unsigned int)in[1]] & 0x1C) >> 2;
out[1] = ((BASE32BITS[(unsigned int)in[1]] & 0x03) << 6) | (BASE32BITS[(unsigned int)in[2]]) << 1 | (BASE32BITS[(unsigned int)in[3]] & 0x10) >> 4;
out[2] = ((BASE32BITS[(unsigned int)in[3]] & 0x0F) << 4) | (BASE32BITS[(unsigned int)in[4]] & 0x1E) >> 1;
out[3] = ((BASE32BITS[(unsigned int)in[4]] & 0x01) << 7) | (BASE32BITS[(unsigned int)in[5]]) << 2 | (BASE32BITS[(unsigned int)in[6]] & 0x18) >> 3;
out[4] = ((BASE32BITS[(unsigned int)in[6]] & 0x07) << 5) | (BASE32BITS[(unsigned int)in[7]]);
}
/**
* Hexadecimal characters 0-f
*/
static const char HEXCHARS[16];
private:
static const char BASE32CHARS[32];
static const uint8_t BASE32BITS[256];
};
} // namespace ZeroTier