From b1b0f5c556f5b4080bf16525c309264de73084b7 Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Sun, 10 Jun 2007 14:56:39 +0200
Subject: bug-fix: cp would fail to write through a dangling symlink * NEWS:
 Mention the bug fix. * src/copy.c (copy_reg): When open fails with EEXIST,
 the destination is lstat'able, and a symlink, call open again, but now
 without O_EXCL. * tests/cp/thru-dangling: New file, to test for the above
 fix. * tests/cp/Makefile.am (TESTS): Add thru-dangling. * THANKS: Add Michael
 McLagan. Bug report from Michael McLagan in
 <http://bugzilla.redhat.com/243588>.

---
 tests/cp/Makefile.am   |  1 +
 tests/cp/thru-dangling | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+)
 create mode 100755 tests/cp/thru-dangling

(limited to 'tests/cp')

diff --git a/tests/cp/Makefile.am b/tests/cp/Makefile.am
index 536c0221d..52e876b08 100644
--- a/tests/cp/Makefile.am
+++ b/tests/cp/Makefile.am
@@ -18,6 +18,7 @@
 # 02110-1301, USA.
 
 TESTS = \
+  thru-dangling \
   cp-a-selinux \
   file-perm-race parent-perm-race \
   backup-dir \
diff --git a/tests/cp/thru-dangling b/tests/cp/thru-dangling
new file mode 100755
index 000000000..3888cf3d9
--- /dev/null
+++ b/tests/cp/thru-dangling
@@ -0,0 +1,54 @@
+#!/bin/sh
+# Ensure that cp works when the destination is a dangling symlink
+
+# Copyright (C) 2007 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program 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 General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+if test "$VERBOSE" = yes; then
+  set -x
+  cp --version
+fi
+
+. $srcdir/../envvar-check
+
+pwd=`pwd`
+t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
+trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && rm -rf $t0 && exit $status' 0
+trap '(exit $?); exit $?' 1 2 13 15
+
+framework_failure=0
+mkdir -p $tmp || framework_failure=1
+cd $tmp || framework_failure=1
+
+ln -s no-such dangle || framework_failure=1
+echo hi > f || framework_failure=1
+echo hi > exp || framework_failure=1
+
+if test $framework_failure = 1; then
+  echo "$0: failure in testing framework" 1>&2
+  (exit 1); exit 1
+fi
+
+fail=0
+
+cp f dangle > out 2>&1 || fail=1
+cat no-such >> out || fail=1
+
+cmp out exp || fail=1
+test $fail = 1 && diff out exp 2> /dev/null
+
+(exit $fail); exit $fail
-- 
cgit v1.2.3-54-g00ecf