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# New Ticket Created by Vernon Lyon
# Please include the string: [perl #76474]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=76474 >



This is a bug report for perl from vlyon@cpan.org,
generated with the help of perlbug 1.39 running under perl 5.10.1.


-----------------------------------------------------------------

In the POD docs it says:
"The filehandles may also be integers, in which case they are understood as file descriptors."

However IPC::Open3 doesn't handle the file descriptors correctly.
As an example, if we try to dup STDIN in a child process by using it's file descriptor, we get:
perl -MIPC::Open3 -wle 'open3("<&1", my $out, undef, $^X)'
close() on unopened filehandle 1 at /usr/share/perl/5.10/IPC/Open3.pm line 70.
open3: close(1) failed: Bad file descriptor at -e line 1

This is because in IPC::Open3 the subroutines xpipe*, xclose* and xopen don't cater for
descriptors being passed in instead of filehandles.

A simple fix for xclose in version 1.06 is:

--- Open3-1.06.pm       2010-06-23 00:36:14.000000000 +0100
+++ Open3.pm    2010-07-12 15:53:18.728132480 +0100
@@ -182,5 +182,6 @@

sub xclose {
-    close $_[0] or croak "$Me: close($_[0]) failed: $!";
+    $_[0] =~ /\A=?(\d+)\z/ ? eval { require POSIX; POSIX::close($1); } : close $_[0]
+        or croak "$Me: close($_[0]) failed: $!";
}

This patch makes it possible to use open3 in Apache to handle uploads, without it it dies.

Thanx,
Vernon

-----------------------------------------------------------------
---
Flags:
category=library
severity=medium
module=IPC::Open3
---
Site configuration information for perl 5.10.1:

Configured by Debian Project at Fri Apr 23 07:59:14 UTC 2010.

Summary of my perl5 (revision 5 version 10 subversion 1) configuration:

Platform:
osname=linux, osvers=2.6.24-27-server, archname=i486-linux-gnu-thread-multi
uname='linux vernadsky 2.6.24-27-server #1 smp fri mar 12 01:45:06 utc 2010 i686 gnulinux '
config_args='-Dusethreads -Duselargefiles -Dccflags=-DDEBIAN -Dcccdlflags=-fPIC -Darchname=i486-linux-gnu -Dprefix=/usr -Dprivlib=/usr/share/perl/5.10 -Darchlib=/usr/lib/perl/5.10 -Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 -Dvendorarch=/usr/lib/perl5 -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl/5.10.1 -Dsitearch=/usr/local/lib/perl/5.10.1 -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local/man/man3 -Dman1ext=1 -Dman3ext=3perl -Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh -Ud_ualarm -Uusesfio -Uusenm -DDEBUGGING=-g -Doptimize=-O2 -Duseshrplib -Dlibperl=libperl.so.5.10.1 -Dd_dosuid -des'
hint=recommended, useposix=true, d_sigaction=define
useithreads=define, usemultiplicity=define
useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
use64bitint=undef, use64bitall=undef, uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O2 -g',
cppflags='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
ccversion='', gccversion='4.4.3', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
alignbytes=4, prototype=define
Linker and Libraries:
ld='cc', ldflags =' -fstack-protector -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib /usr/lib64
libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt
perllibs=-ldl -lm -lpthread -lc -lcrypt
libc=/lib/libc-2.11.1.so, so=so, useshrplib=true, libperl=libperl.so.5.10.1
gnulibc_version='2.11.1'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fPIC', lddlflags='-shared -O2 -g -L/usr/local/lib -fstack-protector'

Locally applied patches:


---
@INC for perl 5.10.1:
/etc/perl
/usr/local/lib/perl/5.10.1
/usr/local/share/perl/5.10.1
/usr/lib/perl5
/usr/share/perl5
/usr/lib/perl/5.10
/usr/share/perl/5.10
/usr/local/lib/site_perl
.

---
Environment for perl 5.10.1:
HOME=/home/vlyon
LANG=en_GB.UTF-8
LANGUAGE (unset)
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
PERL_BADLANG (unset)
SHELL=/bin/bash


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