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[perl #32687] Encode::is_utf8 on tainted UTF8 string returns false
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From:
Mark Martinec
Date:
November 29, 2004 14:56
Subject:
[perl #32687] Encode::is_utf8 on tainted UTF8 string returns false
Message ID:
rt-3.0.11-32687-101223.8.44609597523906@perl.org
# New Ticket Created by Mark Martinec
# Please include the string: [perl #32687]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org:80/rt3/Ticket/Display.html?id=32687 >
This is a bug report for perl from Mark.Martinec@ijs.si,
generated with the help of perlbug 1.35 running under perl v5.8.5.
-----------------------------------------------------------------
The Encode::is_utf8() on an UTF-8 character string
returns false if the string is tainted.
(whereas the utf8::is_utf8 produces correct results)
INCORRECT: ($a is tainted)
perl -Te 'use Encode; $a="\x{263a}.$0";
printf "(%s,%s)\n", Encode::is_utf8($a), utf8::is_utf8($a)'
(,1)
correct: ($a not tainted)
perl -Te 'use Encode; $a="\x{263a}";
printf "(%s,%s)\n", Encode::is_utf8($a), utf8::is_utf8($a)'
(1,1)
As far as I tried, this is not specific to a platform.
-----------------------------------------------------------------
---
Flags:
category=library
severity=medium
---
Site configuration information for perl v5.8.5:
Configured by mark at Fri Oct 1 19:18:35 CEST 2004.
Summary of my perl5 (revision 5 version 8 subversion 5) configuration:
Platform:
osname=freebsd, osvers=5.3-beta4, archname=amd64-freebsd
uname='freebsd ezri.ijs.si 5.3-beta4 freebsd 5.3-beta4 #0: sat sep 18 04:22:33 cest 2004 lesi@ezri.ijs.si:usrobjusrsrcsysezri amd64 '
config_args='-sde -Dprefix=/usr/local -Darchlib=/usr/local/lib/perl5/5.8.5/mach -Dprivlib=/usr/local/lib/perl5/5.8.5 -Dman3dir=/usr/local/lib/perl5/5.8.5/perl/man/man3 -Dman1dir=/usr/local/man/man1 -Dsitearch=/usr/local/lib/perl5/site_perl/5.8.5/mach -Dsitelib=/usr/local/lib/perl5/site_perl/5.8.5 -Dscriptdir=/usr/local/bin -Dsiteman3dir=/usr/local/lib/perl5/5.8.5/man/man3 -Dsiteman1dir=/usr/local/man/man1 -Ui_malloc -Ui_iconv -Uinstallusrbinperl -Dcc=cc -Doptimize=-O2 -pipe -Duseshrplib -Dccflags=-DAPPLLIB_EXP="/usr/local/lib/perl5/5.8.5/BSDPAN" -Dd_dosuid=define -Ui_gdbm -Dusethreads=n -Dusemymalloc=y -Duse64bitint'
hint=recommended, useposix=true, d_sigaction=define
usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=define use64bitall=define uselongdouble=undef
usemymalloc=y, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-DAPPLLIB_EXP="/usr/local/lib/perl5/5.8.5/BSDPAN" -DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -fno-strict-aliasing -pipe -I/usr/local/include',
optimize='-O2 -pipe ',
cppflags='-DAPPLLIB_EXP="/usr/local/lib/perl5/5.8.5/BSDPAN" -DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -fno-strict-aliasing -pipe -I/usr/local/include'
ccversion='', gccversion='3.4.2 [FreeBSD] 20040728', gccosandvers=''
intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='cc', ldflags ='-Wl,-E -L/usr/local/lib'
libpth=/usr/lib /usr/local/lib
libs=-lm -lcrypt -lutil -lc
perllibs=-lm -lcrypt -lutil -lc
libc=, so=so, useshrplib=true, libperl=libperl.so
gnulibc_version=''
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' -Wl,-R/usr/local/lib/perl5/5.8.5/mach/CORE'
cccdlflags='-DPIC -fPIC', lddlflags='-shared -L/usr/local/lib'
Locally applied patches:
---
@INC for perl v5.8.5:
/usr/local/lib/perl5/site_perl/5.8.5/mach
/usr/local/lib/perl5/site_perl/5.8.5
/usr/local/lib/perl5/site_perl
/usr/local/lib/perl5/5.8.5/BSDPAN
/usr/local/lib/perl5/5.8.5/mach
/usr/local/lib/perl5/5.8.5
.
---
Environment for perl v5.8.5:
HOME=/home/mark
LANG (unset)
LANGUAGE (unset)
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/usr/local/bin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/X11R6/bin:/bin:/bin
PERL_BADLANG (unset)
SHELL=/usr/local/bin/bash
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[perl #32687] Encode::is_utf8 on tainted UTF8 string returns false
by Mark Martinec