kotovalexarian-likes-github/moby--moby
1
0
Fork 0
mirror of https://github.com/moby/moby.git synced 2022-11-09 12:21:53 -05:00
Code Releases Activity

Fix expending buffer in StdCopy

Browse source 
Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume@charmes.net> (github: creack)
This commit is contained in:
Guillaume J. Charmes 2014-03-31 10:49:48 -07:00
parent 7727c817fb
commit e4aaacc235
No known key found for this signature in database
GPG key ID: B33E4642CB6E3FF3
1 changed files with 3 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
utils/stdcopy.go
View file

@ -108,12 +108,13 @@ func StdCopy(dstout, dsterr io.Writer, src io.Reader) (written int64, err error)
// Retrieve the size of the frame
frameSize = int(binary.BigEndian.Uint32(buf[StdWriterSizeIndex : StdWriterSizeIndex+4]))
Debugf("framesize: %d", frameSize)
// Check if the buffer is big enough to read the frame.
// Extend it if necessary.
if frameSize+StdWriterPrefixLen > bufLen {
Debugf("Extending buffer cap.")
buf = append(buf, make([]byte, frameSize-len(buf)+1)...)
Debugf("Extending buffer cap by %d (was %d)", frameSize+StdWriterPrefixLen-bufLen+1, len(buf))
buf = append(buf, make([]byte, frameSize+StdWriterPrefixLen-bufLen+1)...)
bufLen = len(buf)
}