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Probable fix for GitHub issue #63 - do not unite() if either path is TCP, since doing so can result in asymmetric failed NAT-t over UDP if one side has a firewall that permits outgoing UDP but not incoming.

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This commit is contained in:
Adam Ierymenko 2014-04-10 11:17:54 -07:00
parent 119ef5ecbf
commit b117ff5435
6 changed files with 39 additions and 19 deletions
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11
main.cpp
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@ -462,6 +462,17 @@ int main(int argc,char **argv)
signal(SIGINT,&sighandlerQuit);
signal(SIGTERM,&sighandlerQuit);
signal(SIGQUIT,&sighandlerQuit);
/* Ensure that there are no inherited file descriptors open from a previous
* incarnation. This is a hack to ensure that GitHub issue #61 or variants
* of it do not return, and should not do anything otherwise bad. */
{
int mfd = STDIN_FILENO;
if (STDOUT_FILENO > mfd) mfd = STDOUT_FILENO;
if (STDERR_FILENO > mfd) mfd = STDERR_FILENO;
for(int f=mfd+1;f<1024;++f)
::close(f);
}
#endif
#ifdef __WINDOWS__