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From e8b56ebd536e82b15542a00c888109471936bfda Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A1draig=20Brady?= <P@draigBrady.com>
Date: Fri, 24 Sep 2021 20:57:41 +0100
Subject: chmod: fix exit status when ignoring symlinks
* src/chmod.c: Reorder enum so CH_NOT_APPLIED
can be treated as a non error.
* tests/chmod/ignore-symlink.sh: A new test.
* tests/local.mk: Reference the new test.
* NEWS: Mention the bug fix.
Fixes https://bugs.gnu.org/50784
---
NEWS | 6 ++++++
src/chmod.c | 4 ++--
tests/chmod/ignore-symlink.sh | 31 +++++++++++++++++++++++++++++++
tests/local.mk | 1 +
4 files changed, 40 insertions(+), 2 deletions(-)
create mode 100755 tests/chmod/ignore-symlink.sh
diff --git a/NEWS b/NEWS
index a1470a7d7..1cb3c28a1 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,12 @@ GNU coreutils NEWS -*- outline -*-
* Noteworthy changes in release ?.? (????-??-??) [?]
+** Bug fixes
+
+ chmod -R no longer exits with error status when encountering symlinks.
+ All files would be processed correctly, but the exit status was incorrect.
+ [bug introduced in coreutils-9.0]
+
* Noteworthy changes in release 9.0 (2021-09-24) [stable]
diff --git a/src/chmod.c b/src/chmod.c
index 37b04f500..57ac47f33 100644
--- a/src/chmod.c
+++ b/src/chmod.c
@@ -44,8 +44,8 @@ struct change_status
enum
{
CH_NO_STAT,
- CH_NOT_APPLIED,
CH_FAILED,
+ CH_NOT_APPLIED,
CH_NO_CHANGE_REQUESTED,
CH_SUCCEEDED
}
@@ -322,7 +322,7 @@ process_file (FTS *fts, FTSENT *ent)
if ( ! recurse)
fts_set (fts, ent, FTS_SKIP);
- return CH_NO_CHANGE_REQUESTED <= ch.status;
+ return CH_NOT_APPLIED <= ch.status;
}
/* Recursively change the modes of the specified FILES (the last entry
diff --git a/tests/chmod/ignore-symlink.sh b/tests/chmod/ignore-symlink.sh
new file mode 100755
index 000000000..5ce3de816
--- /dev/null
+++ b/tests/chmod/ignore-symlink.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+# Test for proper exit code of chmod on a processed symlink.
+
+# Copyright (C) 2021 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 3 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, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ chmod
+
+mkdir dir || framework_failure_
+touch dir/f || framework_failure_
+ln -s f dir/l || framework_failure_
+
+# This operation ignores symlinks but should succeed.
+chmod u+w -R dir 2> out || fail=1
+
+compare /dev/null out || fail=1
+
+Exit $fail
diff --git a/tests/local.mk b/tests/local.mk
index 228d0e368..b5b893fb7 100644
--- a/tests/local.mk
+++ b/tests/local.mk
@@ -456,6 +456,7 @@ all_tests = \
tests/chmod/c-option.sh \
tests/chmod/equal-x.sh \
tests/chmod/equals.sh \
+ tests/chmod/ignore-symlink.sh \
tests/chmod/inaccessible.sh \
tests/chmod/octal.sh \
tests/chmod/setgid.sh \
--
cgit v1.2.1
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