[ID 20000428.003] IO and filehandle redirection conflict

This is a bug report for perl from soon@trepp.com,
generated with the help of perlbug 1.26 running under perl 5.00503.


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[Please enter your report here]

There appears to be a conflict between IO and redirecting output.

Here is the code:

use IO;
open (STDOUT, "| tee log");
my $fh =  new IO::Handle();
$fh->fdopen(fileno(STDOUT), "w") || die("Cannot open STDOUT");
print "Hello World\n";


This is fairly serious since if you use CGI and an IO-dependent
module you will hit this bug from a web server but not when you
run it from the command line.  (Seen specifically with Writer.pm
and CGI interacting.)

[Please do not change anything below this line]
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Site configuration information for perl 5.00503:

Configured by torin at Mon Mar 27 07:50:39 PST 2000.

Summary of my perl5 (5.0 patchlevel 5 subversion 3) configuration:
  Platform:
    osname=linux, osvers=2.2.14, archname=i386-linux
    uname='linux perv 2.2.14 #1 sat jan 15 20:48:59 pst 2000 i686 unknown '
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef useperlio=undef d_sfio=undef
  Compiler:
    cc='cc', optimize='-O2 ', gccversion=2.95.2 20000220 (Debian GNU/Linux)
    cppflags='-Dbool=char -DHAS_BOOL -D_REENTRANT -DDEBIAN -I/usr/local/include'
    ccflags ='-Dbool=char -DHAS_BOOL -D_REENTRANT -DDEBIAN -I/usr/local/include'
    stdchar='char', d_stdstdio=undef, usevfork=false
    intsize=4, longsize=4, ptrsize=4, doublesize=8
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    alignbytes=4, usemymalloc=n, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lnsl -lndbm -lgdbm -ldbm -ldb -ldl -lm -lc -lposix -lcrypt
    libc=, so=so, useshrplib=false, libperl=libperl.a
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
    cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'

Locally applied patches:
    

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@INC for perl 5.00503:
    /usr/lib/perl5/5.005/i386-linux
    /usr/lib/perl5/5.005
    /usr/local/lib/site_perl/i386-linux
    /usr/local/lib/site_perl
    /usr/lib/perl5
    .

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Environment for perl 5.00503:
    HOME=/home/soon
    LANG=C
    LANGUAGE (unset)
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games
    PERL_BADLANG (unset)
    SHELL=/bin/bash

• [ID 20000428.003] IO and filehandle redirection conflict by soon ow