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* bounds check on Identity::FromBuffer

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* properly indet last commits
This commit is contained in:
Jeff Becker 2016-02-05 08:52:07 -05:00
parent 21090eaa39
commit d4febb4e84
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GPG key ID: AB950234D6EA286B
1 changed files with 9 additions and 5 deletions
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6
Identity.cpp
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@ -22,6 +22,10 @@ namespace data
size_t Identity::FromBuffer (const uint8_t * buf, size_t len) size_t Identity::FromBuffer (const uint8_t * buf, size_t len)
{ {
if ( len < DEFAULT_IDENTITY_SIZE ) {
// buffer too small, don't overflow
return 0;
}
memcpy (publicKey, buf, DEFAULT_IDENTITY_SIZE); memcpy (publicKey, buf, DEFAULT_IDENTITY_SIZE);
return DEFAULT_IDENTITY_SIZE; return DEFAULT_IDENTITY_SIZE;
} }
@ -245,7 +249,7 @@ namespace data
const size_t slen = s.length(); const size_t slen = s.length();
const size_t bufLen = Base64EncodingBufferSize(slen); const size_t bufLen = Base64EncodingBufferSize(slen);
uint8_t buf[bufLen]; uint8_t buf[bufLen];
auto len = Base64ToByteStream (s.c_str(), slen, buf, 1024); const size_t len = Base64ToByteStream (s.c_str(), slen, buf, bufLen);
return FromBuffer (buf, len); return FromBuffer (buf, len);
} }