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Merge branch 'master' of https://github.com/raysan5/raylib

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Ray
2025-09-05 23:07:46 +02:00
parent 86ec1c08c2 bd810368b0
commit b2684a9c38
1 changed files with 13 additions and 2 deletions
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15
src/rcore.c
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@ -2671,13 +2671,24 @@ unsigned char *DecodeDataBase64(const char *text, int *outputSize)
for (int i = 0; i < dataSize;) for (int i = 0; i < dataSize;)
{ {
// Every 4 sixtets must generate 3 octets // Every 4 sixtets must generate 3 octets
if (i + 2 >= dataSize)
{
TRACELOG(LOG_WARNING, "BASE64 decoding error: Input data size is not valid");
break;
}
unsigned int sixtetA = base64DecodeTable[(unsigned char)text[i]]; unsigned int sixtetA = base64DecodeTable[(unsigned char)text[i]];
unsigned int sixtetB = base64DecodeTable[(unsigned char)text[i + 1]]; unsigned int sixtetB = base64DecodeTable[(unsigned char)text[i + 1]];
unsigned int sixtetC = ((unsigned char)text[i + 2] != '=')? base64DecodeTable[(unsigned char)text[i + 2]] : 0; unsigned int sixtetC = (i + 2 < dataSize && (unsigned char)text[i + 2] != '=')? base64DecodeTable[(unsigned char)text[i + 2]] : 0;
unsigned int sixtetD = ((unsigned char)text[i + 3] != '=')? base64DecodeTable[(unsigned char)text[i + 3]] : 0; unsigned int sixtetD = (i + 3 < dataSize && (unsigned char)text[i + 3] != '=')? base64DecodeTable[(unsigned char)text[i + 3]] : 0;
unsigned int octetPack = (sixtetA << 18) | (sixtetB << 12) | (sixtetC << 6) | sixtetD; unsigned int octetPack = (sixtetA << 18) | (sixtetB << 12) | (sixtetC << 6) | sixtetD;
if (outputCount + 3 > maxOutputSize)
{
TRACELOG(LOG_WARNING, "BASE64 decoding: Output data size is too small");
break;
}
decodedData[outputCount + 0] = (octetPack >> 16) & 0xff; decodedData[outputCount + 0] = (octetPack >> 16) & 0xff;
decodedData[outputCount + 1] = (octetPack >> 8) & 0xff; decodedData[outputCount + 1] = (octetPack >> 8) & 0xff;
decodedData[outputCount + 2] = octetPack & 0xff; decodedData[outputCount + 2] = octetPack & 0xff;