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base58: bail out when output buffer is empty

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Pavol Rusnak 2018-10-23 18:01:44 +02:00
parent a938a1c901
commit eacfa751f9
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1 changed files with 5 additions and 0 deletions
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base58.c
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@ -44,6 +44,11 @@ const int8_t b58digits_map[] = {
bool b58tobin(void *bin, size_t *binszp, const char *b58)
{
size_t binsz = *binszp;
if (binsz == 0) {
return false;
}
const unsigned char *b58u = (const unsigned char*)b58;
unsigned char *binu = bin;
size_t outisz = (binsz + 3) / 4;