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glibc/glibc-RHEL-71530-2.patch

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commit 422ed8ede312f786369e4850e47b8d32beaae4e4
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Sep 20 13:10:54 2024 +0200
iconv: Base tests for buffer management
Reviewed-by: DJ Delorie <dj@redhat.com>
diff --git a/iconv/Makefile b/iconv/Makefile
index 65b4a44ab86cf0dc..b0fa550141db5a06 100644
--- a/iconv/Makefile
+++ b/iconv/Makefile
@@ -76,8 +76,11 @@ include $(patsubst %,$(..)libof-iterator.mk,$(cpp-srcs-left))
ifeq ($(run-built-tests),yes)
xtests-special += $(objpfx)test-iconvconfig.out
-tests-special += $(objpfx)tst-iconv_prog.out
-tests-special += $(objpfx)tst-translit-mchar.out
+tests-special += \
+ $(objpfx)tst-iconv_prog-buffer.out \
+ $(objpfx)tst-iconv_prog.out \
+ $(objpfx)tst-translit-mchar.out \
+ # tests-special
endif
# Make a copy of the file because gconv module names are constructed
@@ -141,3 +144,8 @@ $(objpfx)tst-translit-mchar.out: tst-translit-mchar.sh \
'$(run-program-env)' '$(run-program-prefix-after-env)' \
$< > $@; \
$(evaluate-test)
+
+$(objpfx)tst-iconv_prog-buffer.out: \
+ tst-iconv_prog-buffer.sh $(objpfx)iconv_prog
+ $(BASH) $< $(common-objdir) '$(test-program-prefix)' > $@; \
+ $(evaluate-test)
diff --git a/iconv/tst-iconv_prog-buffer.sh b/iconv/tst-iconv_prog-buffer.sh
new file mode 100644
index 0000000000000000..a27107f02b95cdc7
--- /dev/null
+++ b/iconv/tst-iconv_prog-buffer.sh
@@ -0,0 +1,177 @@
+#!/bin/bash
+# Test for iconv (the program) buffer management.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+exec 2>&1
+set -e
+
+exec {logfd}>&1
+
+codir=$1
+test_program_prefix="$2"
+
+# Use internal converters to avoid issues with module loading.
+iconv_args="-f ASCII -t UTF-8"
+
+failure=false
+
+tmp=`mktemp -d`
+trap 'rm -rf "$tmp"' 0
+echo ABC > "$tmp/abc"
+echo DEF > "$tmp/def"
+echo GGG > "$tmp/ggg"
+echo HH > "$tmp/hh"
+echo XY > "$tmp/xy"
+echo ZT > "$tmp/zt"
+echo OUT > "$tmp/out-template"
+printf '\xff' > "$tmp/0xff"
+cat "$tmp/xy" "$tmp/0xff" "$tmp/zt" > "$tmp/0xff-wrapped"
+
+run_iconv () {
+ local c=0
+ if test "${FUNCNAME[2]}" = main; then
+ c=1
+ fi
+ echo "${BASH_SOURCE[$c]}:${BASH_LINENO[$c]}: iconv $iconv_args $@" >&$logfd
+ $test_program_prefix $codir/iconv/iconv_prog $iconv_args "$@"
+}
+
+check_out_expected () {
+ if ! cmp -s "$tmp/out" "$tmp/expected" ; then
+ echo "error: iconv output difference" >&$logfd
+ echo "*** expected ***" >&$logfd
+ cat "$tmp/expected" >&$logfd
+ echo "*** actual ***" >&$logfd
+ cat "$tmp/out" >&$logfd
+ failure=true
+ fi
+}
+
+expect_files () {
+ local f
+ ! test -z "$1"
+ cp "$tmp/$1" "$tmp/expected"
+ shift
+ for f in "$@" ; do
+ cat "$tmp/$f" >> "$tmp/expected"
+ done
+ check_out_expected
+}
+
+check_out () {
+ cat > "$tmp/expected"
+ check_out_expected
+}
+
+expect_exit () {
+ local expected=$1
+ shift
+ # Prevent failure for stopping the script.
+ if "$@" ; then
+ actual=$?
+ else
+ actual=$?
+ fi
+ if test "$actual" -ne "$expected"; then
+ echo "error: expected exit status $expected, not $actual" >&$logfd
+ exit 1
+ fi
+}
+
+ignore_failure () {
+ set +e
+ "$@"
+ status=$?
+ set -e
+}
+
+# Concatentation test.
+run_iconv -o "$tmp/out" "$tmp/abc" "$tmp/def"
+expect_files abc def
+
+# Single-file in-place conversion.
+run_iconv -o "$tmp/out" "$tmp/out"
+expect_files abc def
+
+# Multiple input files with in-place conversion.
+
+run_iconv -o "$tmp/out" "$tmp/out" "$tmp/abc"
+expect_files abc def abc
+
+# But not if we are writing to standard output.
+
+cp "$tmp/out-template" "$tmp/out"
+run_iconv </dev/null >>"$tmp/out"
+expect_files out-template
+
+cp "$tmp/out-template" "$tmp/out"
+run_iconv - </dev/null >>"$tmp/out"
+expect_files out-template
+
+cp "$tmp/out-template" "$tmp/out"
+run_iconv /dev/null >>"$tmp/out"
+expect_files out-template
+
+# Conversion errors should avoid clobbering an existing file if
+# it is also an input file.
+
+cp "$tmp/0xff" "$tmp/out"
+expect_exit 1 run_iconv -o "$tmp/out" "$tmp/out"
+expect_files 0xff
+
+cp "$tmp/0xff" "$tmp/out"
+expect_exit 1 run_iconv -o "$tmp/out" < "$tmp/out"
+expect_files 0xff
+
+cp "$tmp/0xff" "$tmp/out"
+expect_exit 1 run_iconv -o "$tmp/out" - < "$tmp/out"
+expect_files 0xff
+
+# If errors are ignored, the file should be overwritten.
+
+cp "$tmp/out-template" "$tmp/out"
+expect_exit 1 \
+ run_iconv -c -o "$tmp/out" "$tmp/abc" "$tmp/0xff" "$tmp/def" 2>"$tmp/err"
+! test -s "$tmp/err"
+expect_files abc def
+
+# FIXME: This is not correct, -c should not change the exit status.
+cp "$tmp/out-template" "$tmp/out"
+run_iconv -c -o "$tmp/out" \
+ "$tmp/abc" "$tmp/0xff-wrapped" "$tmp/def" 2>"$tmp/err"
+! test -s "$tmp/err"
+expect_files abc xy zt def
+
+# If the file does not exist yet, it should not be created on error.
+
+rm "$tmp/out"
+expect_exit 1 run_iconv -o "$tmp/out" "$tmp/0xff"
+! test -e "$tmp/out"
+
+expect_exit 1 run_iconv -o "$tmp/out" < "$tmp/0xff"
+! test -e "$tmp/out"
+
+expect_exit 1 run_iconv -o "$tmp/out" "$tmp/abc" "$tmp/0xff" "$tmp/def"
+! test -e "$tmp/out"
+
+expect_exit 1 run_iconv -o "$tmp/out" "$tmp/abc" - < "$tmp/0xff" "$tmp/def"
+! test -e "$tmp/out"
+
+if $failure ; then
+ exit 1
+fi
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