Package: libc6
Version: 2.36-5
Severity: normal
Tags: upstream
X-Debbugs-Cc: r...@debian.org
Hi,
Thanks for taking care of glibc in Debian!
While trying to write a test case for a text processing utility that is
sort of aware of locales and character encodings, I stumbled upon
the fact that, in an UTF-8-capable locale, fnmatch() seems to think
that the `ñ` ("enye", "LATIN SMALL LETTER N WITH TILDE", U+00F1)
character should match both the "?" and "??" patterns. See the attached
C program and the `run-test.sh` demonstration tool; `make test` in
a directory where all four files are installed should do it.
If anything goes wrong with the attached files, they are also available
in a GitLab repository at https://gitlab.com/ppentchev/fnmess
A bullseye chroot and Docker container do not show the problem
(the test passes).
FTR, I was able to reproduce the problem on an AlmaLinux 9 system with
glibc 2.34, so it might not be limited to 2.36.
Thanks in advance for your time, and keep up the great work!
G'luck,
Peter
-- System Information:
Debian Release: bookworm/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'stable-updates'), (500,
'stable-security'), (500, 'oldstable-updates'), (500, 'oldoldstable'), (500,
'stable'), (500, 'oldstable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.0.0-4-amd64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=bg_BG.UTF-8, LC_CTYPE=bg_BG.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages libc6 depends on:
ii libgcc-s1 12.2.0-9
Versions of packages libc6 recommends:
ii libidn2-0 2.3.3-1+b1
Versions of packages libc6 suggests:
ii debconf [debconf-2.0] 1.5.79
pn glibc-doc
ii libc-l10n 2.36-5
pn libnss-nis
pn libnss-nisplus
ii locales2.36-5
-- debconf information:
* libraries/restart-without-asking: true
glibc/disable-screensaver:
glibc/kernel-not-supported:
glibc/kernel-too-old:
glibc/restart-failed:
glibc/restart-services:
glibc/upgrade: true
#!/usr/bin/make -f
#
# Copyright (c) 2022 Peter Pentchev
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#notice, this list of conditions and the following disclaimer in the
#documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
CPPFLAGS?= -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700
CFLAGS_WARN?= -Wall -W -Wextra -Wno-trigraphs
CFLAGS_OPT?=-g -O -pipe
CFLAGS?=${CFLAGS_WARN} ${CFLAGS_OPT}
LDFLAGS?=
LIBS?=
all:fnmess
fnmess: fnmess.o
cc ${LDFLAGS} -o fnmess fnmess.o ${LIBS}
fnmess.o: fnmess.c
cc -c ${CPPFLAGS} ${CFLAGS} -o fnmess.o fnmess.c
clean:
rm -f fnmess fnmess.o
test: all
sh run-test.sh python3 fnmess.py
sh run-test.sh ./fnmess
.PHONY: clean all test
/**
* Copyright (c) 2022 Peter Pentchev
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*notice, this list of conditions and the following disclaimer in the
*documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
