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Postings from January 2012
# New Ticket Created by Yitzchak Scott-Thoennes
# Please include the string: [perl #109146]
# in the subject line of all future correspondence about this issue.
# <URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=109146 >
This is a bug report for perl from sthoenna@gmail.com,
generated with the help of perlbug 1.39 running under perl 5.14.2.
-----------------------------------------------------------------
[Please describe your issue here]
open(FH, "<", undef) triggers special behavior to open a temporary file
(at least with perlio) that is documented as only applying to +> and +<.
To keep open(FH, "<", $hash{typoedkey}) from quietly succeeding, this
should at least trigger a warning (and the doc be updated to not be mode
specific).
Crude patch from avar in irc:
diff --git a/perlio.c b/perlio.c
index a985dcc..09e415d 100644
--- a/perlio.c
+++ b/perlio.c
@@ -1601,6 +1601,8 @@ PerlIO_openn(pTHX_ const char *layers, const
char *mode, int fd,
{
dVAR;
if (!f && narg == 1 && *args == &PL_sv_undef) {
+ if (mode && strEQ(mode, "r"))
+ Perl_croak(aTHX_ "You have an undef filename with a < mode");
if ((f = PerlIO_tmpfile())) {
if (!layers || !*layers)
layers = Perl_PerlIO_context_layers(aTHX_ mode);
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=low
---
Site configuration information for perl 5.14.2:
Configured by ysth at Mon Dec 26 13:23:55 PST 2011.
Summary of my perl5 (revision 5 version 14 subversion 2) configuration:
Platform:
osname=linux, osvers=2.6.32-37-generic, archname=i686-linux
uname='linux lark.servola.org 2.6.32-37-generic #81-ubuntu smp fri
dec 2 20:35:14 utc 2011 i686 gnulinux '
config_args='-de -Dprefix=/home/ysth/perl5/perlbrew/perls/perl-5.14.2'
hint=recommended, useposix=true, d_sigaction=define
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 ='-fno-strict-aliasing -pipe -fstack-protector
-I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O2',
cppflags='-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/../lib /usr/lib/../lib /lib /usr/lib
/usr/lib/i486-linux-gnu /usr/lib64
libs=-lnsl -ldb -ldl -lm -lcrypt -lutil -lc
perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
libc=/lib/libc-2.11.1.so, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version='2.11.1'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib
-fstack-protector'
Locally applied patches:
---
@INC for perl 5.14.2:
/usr/lib/shiftboard
/home/ysth/perl5/perlbrew/perls/perl-5.14.2/lib/site_perl/5.14.2/i686-linux
/home/ysth/perl5/perlbrew/perls/perl-5.14.2/lib/site_perl/5.14.2
/home/ysth/perl5/perlbrew/perls/perl-5.14.2/lib/5.14.2/i686-linux
/home/ysth/perl5/perlbrew/perls/perl-5.14.2/lib/5.14.2
.
---
Environment for perl 5.14.2:
HOME=/home/ysth
LANG=en_US.utf8
LANGUAGE (unset)
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/home/ysth/perl5/perlbrew/bin:/home/ysth/perl5/perlbrew/perls/current/bin:/home/ysth/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
PERL5LIB=/usr/lib/shiftboard
PERLBREW_PATH=/home/ysth/perl5/perlbrew/bin:/home/ysth/perl5/perlbrew/perls/current/bin
PERLBREW_PERL=perl-5.14.2
PERLBREW_ROOT=/home/ysth/perl5/perlbrew
PERLBREW_VERSION=0.18
PERL_BADLANG (unset)
SHELL=/bin/bash
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