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ftp: Fix accessing first element in empty segments vector

pull/384/head
Tatsuhiro Tsujikawa 2015-05-12 22:42:26 +09:00
parent 5723f4211a
commit 62826d691d
1 changed files with 3 additions and 1 deletions
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4
src/FtpNegotiationCommand.cc
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@ -106,7 +106,9 @@ FtpNegotiationCommand::FtpNegotiationCommand
FtpNegotiationCommand::~FtpNegotiationCommand() {} FtpNegotiationCommand::~FtpNegotiationCommand() {}
bool FtpNegotiationCommand::executeInternal() { bool FtpNegotiationCommand::executeInternal() {
while(processSequence(getSegments().front())); auto segment = getSegments().empty() ?
std::shared_ptr<Segment>() : getSegments().front();
while(processSequence(segment));
if(sequence_ == SEQ_RETRY) { if(sequence_ == SEQ_RETRY) {
return prepareForRetry(0); return prepareForRetry(0);
} else if(sequence_ == SEQ_NEGOTIATION_COMPLETED) { } else if(sequence_ == SEQ_NEGOTIATION_COMPLETED) {