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Fix unnecessary stack growth when parsing frames

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This commit is contained in:
Lucas Clemente
2018-04-30 10:28:18 +02:00
committed by GitHub
parent 0aa793876c
commit 0d8f0be92b
1 changed files with 11 additions and 11 deletions
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22
internal/wire/frame_parser.go
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@@ -11,19 +11,19 @@ import (
// ParseNextFrame parses the next frame
// It skips PADDING frames.
func ParseNextFrame(r *bytes.Reader, hdr *Header, v protocol.VersionNumber) (Frame, error) {
if r.Len() == 0 {
return nil, nil
}
typeByte, _ := r.ReadByte()
if typeByte == 0x0 { // PADDING frame
return ParseNextFrame(r, hdr, v)
}
r.UnreadByte()
for r.Len() != 0 {
typeByte, _ := r.ReadByte()
if typeByte == 0x0 { // PADDING frame
continue
}
r.UnreadByte()
if !v.UsesIETFFrameFormat() {
return parseGQUICFrame(r, typeByte, hdr, v)
if !v.UsesIETFFrameFormat() {
return parseGQUICFrame(r, typeByte, hdr, v)
}
return parseIETFFrame(r, typeByte, v)
}
return parseIETFFrame(r, typeByte, v)
return nil, nil
}
func parseIETFFrame(r *bytes.Reader, typeByte byte, v protocol.VersionNumber) (Frame, error) {