Mirrors/i2pd
2
0
Fork 0
mirror of https://github.com/PurpleI2P/i2pd.git synced 2025-03-22 00:59:08 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

don't write beyond out buffer

Browse source
This commit is contained in:
orignal 2014-09-17 16:24:13 -04:00
parent 7019b6d68f
commit 9ceb9a7228
1 changed files with 4 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
base64.cpp
View file

@ -166,18 +166,21 @@ namespace data
ps = (unsigned char *)InBuffer; ps = (unsigned char *)InBuffer;
if (outCount > len) return -1; if (outCount > len) return -1;
pd = (unsigned char *)OutBuffer; pd = OutBuffer;
auto endOfOutBuffer = OutBuffer + outCount;
for ( i = 0; i < n; i++ ){ for ( i = 0; i < n; i++ ){
acc_1 = iT64[*ps++]; acc_1 = iT64[*ps++];
acc_2 = iT64[*ps++]; acc_2 = iT64[*ps++];
acc_1 <<= 2; acc_1 <<= 2;
acc_1 |= acc_2>>4; acc_1 |= acc_2>>4;
*pd++ = acc_1; *pd++ = acc_1;
if (pd >= endOfOutBuffer) break;
acc_2 <<= 4; acc_2 <<= 4;
acc_1 = iT64[*ps++]; acc_1 = iT64[*ps++];
acc_2 |= acc_1 >> 2; acc_2 |= acc_1 >> 2;
*pd++ = acc_2; *pd++ = acc_2;
if (pd >= endOfOutBuffer) break;
acc_2 = iT64[*ps++]; acc_2 = iT64[*ps++];
acc_2 |= acc_1 << 6; acc_2 |= acc_1 << 6;