ahem, poj called it when he said 

   # equivalent Mail:Sendmail code
    open S,'>','socket' or die;
    my $oldfh = select(S); $| = 1; select($oldfh);
    close S;

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I saw it too when i looked at the SendMail code, he even used the same global filename and varlable that they did.

notice he says 

# select(STDOUT); # uncomment to fix

[download]
Did you try that?

And notice he credits choroba for mentioning the fix first 

select $stdout;

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I am mentioning this AGAIN because i understand how frustrating it can be when "someone" skips the actual fix, and wanders away in all odd directions instead.

The trouble comes from my($oldfh) = select(S); $| = 1; select($oldfh); at http://cpansearch.perl.org/src/ABELTJE/Test-Smoke-1.72/lib/inc/Mail/Sendmail.pm. Note that at the time of my($oldfh) = select(S); the selected default output (while maybe seeming to be *STDOUT) is infact $fh via *STDOUT, so that reselect at the end points directly to $fh rather than back at STDOUT as you might think at first thought. See restoring *STDOUT = $stdout; doesnt do much good when the default print file is directly set to $fh by the select.

And just as a lark, seeing this 

unless ( socket S, AF_INET, SOCK_STREAM, (getprotobyname 'tcp')[2] ) {
            return fail("socket failed ($!)")

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brought back memories of doing things before i knew of use IO::Socket;, Hardly thought of in maybe 15 years, still works tho, well kinda. If you were to use low level sockets, (for some comparability reasons id suspect,) is there another way to unbuffer a file than to select it and set $|?

In reply to Re^4: STDERR Restore after redirect by huck
in thread STDERR Restore after redirect by tultalk

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