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Create base58.c

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This commit is contained in:
GGSuchao
2017-06-15 19:28:05 +08:00
committed by GitHub
parent 634b9ce8f9
commit 2df29598f0
1 changed files with 10 additions and 9 deletions
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19
crypto/base58/base58.c
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@@ -72,7 +72,7 @@ static const int8_t b58digits_map[] = {
47,48,49,50,51,52,53,54, 55,56,57,-1,-1,-1,-1,-1,
};
bool base58_decode(const char *b58, size_t b58sz, void *bin, size_t *binszp)
int base58_decode(const char *b58, size_t b58sz, void *bin, size_t *binszp)
{
size_t binsz = *binszp;
const unsigned char *b58u = (void*)b58;
@@ -100,11 +100,11 @@ bool base58_decode(const char *b58, size_t b58sz, void *bin, size_t *binszp)
if (b58u[i] & 0x80) {
// High-bit set on invalid digit
BASE58err(BASE58_F_BASE58_DECODE, BASE58_R_HIGHBIT_SET_ON_INVALID_DIGIT);
return false;
return 0;
}
if (b58digits_map[b58u[i]] == -1)
// Invalid base58 digit
return false;
return 0;
c = (unsigned)b58digits_map[b58u[i]];
for (j = outisz; j--; )
{
@@ -114,10 +114,10 @@ bool base58_decode(const char *b58, size_t b58sz, void *bin, size_t *binszp)
}
if (c)
// Output number too big (carry to the next int32)
return false;
return 0;
if (outi[0] & zeromask)
// Output number too big (last int32 filled too far)
return false;
return 0;
}
j = 0;
@@ -151,12 +151,12 @@ bool base58_decode(const char *b58, size_t b58sz, void *bin, size_t *binszp)
}
*binszp += zerocount;
return true;
return 1;
}
static const char b58digits_ordered[] = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
bool base58_encode(const void *data, size_t binsz, char *b58, size_t *b58sz)
int base58_encode(const void *data, size_t binsz, char *b58, size_t *b58sz)
{
const uint8_t *bin = data;
int carry;
@@ -185,7 +185,7 @@ bool base58_encode(const void *data, size_t binsz, char *b58, size_t *b58sz)
if (*b58sz <= zcount + size - j)
{
*b58sz = zcount + size - j + 1;
return false;
return 0;
}
if (zcount)
@@ -195,5 +195,6 @@ bool base58_encode(const void *data, size_t binsz, char *b58, size_t *b58sz)
b58[i] = '\0';
*b58sz = i + 1;
return true;
return 1;
}
f