[perl #21937] open $x,$y,undef; should use File::Temp

# New Ticket Created by  gnat@nathan-torkingtons-computer.local 
# Please include the string:  [perl #21937]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt2/Ticket/Display.html?id=21937 >


This is a bug report for perl from gnat@nathan-torkingtons-computer.local.,
generated with the help of perlbug 1.34 running under perl v5.8.0.


-----------------------------------------------------------------
[Please enter your report here]

You can now say:
  open $fh, "+>", undef;
to create a temporary file for reading and writing.  However,
internally this just uses mkstemp().  Perl comes with a File::Temp
module that works even when your system doesn't have mkstemp() or
has a race-condition-prone mkstemp().

There's an element of recursion here because File::Temp calls
open() to open the file, but the key is that it's not unbounded
recursion because when File::Temp calls open() it does so with a
concrete filename and not "undef".

[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
    category=core
    severity=medium
---
Site configuration information for perl v5.8.0:

Configured by gnat at Wed Feb  5 16:24:34 MST 2003.

Summary of my perl5 (revision 5.0 version 8 subversion 0) configuration:
  Platform:
    osname=darwin, osvers=6.3, archname=darwin
    uname='darwin nathan-torkingtons-computer.local. 6.3 darwin kernel version 6.3: sat dec 14 03:11:25 pst 2002; root:xnuxnu-344.23.obj~4release_ppc power macintosh powerpc '
    config_args='-der'
    hint=previous, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
    useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=undef use64bitall=undef uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-pipe -fno-common -no-cpp-precomp -fno-strict-aliasing',
    optimize='-O3',
    cppflags='-no-cpp-precomp -pipe -fno-common -no-cpp-precomp -fno-strict-aliasing -pipe -fno-common -no-cpp-precomp -fno-strict-aliasing -pipe -fno-common -no-cpp-precomp -fno-strict-aliasing'
    ccversion='', gccversion='3.1 20020420 (prerelease)', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=4321
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=8
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -flat_namespace'
    libpth=/usr/lib
    libs=-lm -lc
    perllibs=-lm -lc
    libc=/usr/lib/libc.dylib, so=dylib, useshrplib=true, libperl=libperl.dylib
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_dyld.xs, dlext=bundle, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags=' -flat_namespace -bundle -undefined suppress'

Locally applied patches:
    

---
@INC for perl v5.8.0:
    /usr/local/perl5-8/Library/Perl/5.8.0/darwin
    /usr/local/perl5-8/Library/Perl/5.8.0
    /usr/local/perl5-8/Library/Perl/5.8.0/darwin
    /usr/local/perl5-8/Library/Perl/5.8.0
    /usr/local/perl5-8/Library/Perl
    /usr/local/perl5-8/Network/Library/Perl/5.8.0/darwin
    /usr/local/perl5-8/Network/Library/Perl/5.8.0
    /usr/local/perl5-8/Network/Library/Perl
    .

---
Environment for perl v5.8.0:
    DYLD_LIBRARY_PATH (unset)
    HOME=/Users/gnat
    LANG (unset)
    LANGUAGE (unset)
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/usr/local/perl5-8/bin:/sw/bin:/sw/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/X11R6/bin:/Users/gnat/bin:/usr/local/bin
    PERL_BADLANG (unset)
    SHELL=/bin/tcsh

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