File pacemaker#3339-0001-Fix-tools-crm_attribute-emits-garbage-for-node-local.patch of Package pacemaker.34780

From 9c13ce6fe95812308443c188ace8f897e6bce942 Mon Sep 17 00:00:00 2001
From: Reid Wahl <nrwahl@protonmail.com>
Date: Mon, 29 Jan 2024 11:14:25 -0800
Subject: [PATCH] Fix: tools: crm_attribute emits garbage for --node localhost
 or auto

This happens because pcmk__node_attr_target() returns its argument if
its argument is NULL, "auto", or "localhost" and no relevant environment
variables are found. Then crm_attribute frees the return value, makes a
copy of it, and assigns it back to options.dest_uname.

The fix is to check whether the return value is equal to the argument.

Fixes RHEL-23065

Signed-off-by: Reid Wahl <nrwahl@protonmail.com>
---
 tools/crm_attribute.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

Index: pacemaker-2.1.2+20211124.ada5c3b36/tools/crm_attribute.c
===================================================================
--- pacemaker-2.1.2+20211124.ada5c3b36.orig/tools/crm_attribute.c
+++ pacemaker-2.1.2+20211124.ada5c3b36/tools/crm_attribute.c
@@ -387,8 +387,23 @@ main(int argc, char **argv)
         const char *target = pcmk__node_attr_target(options.dest_uname);
 
         if (target != NULL) {
-            g_free(options.dest_uname);
-            options.dest_uname = g_strdup(target);
+            /* If options.dest_uname is "auto" or "localhost", then
+             * pcmk__node_attr_target() may return it, depending on environment
+             * variables. In that case, attribute lookups will fail for "auto"
+             * (unless there's a node named "auto"). attrd maps "localhost" to
+             * the true local node name for queries.
+             *
+             * @TODO
+             * * Investigate whether "localhost" is mapped to a real node name
+             *   for non-query commands. If not, possibly modify it so that it
+             *   is.
+             * * Map "auto" to "localhost" (probably).
+             */
+            if (target != (const char *) options.dest_uname) {
+                g_free(options.dest_uname);
+                options.dest_uname = g_strdup(target);
+            }
+
         }
 
         if (options.dest_uname == NULL) {