File rh#2045096-0001-Low-libcrmservice-Additional-metadata-fix-for-system.patch of Package pacemaker.29727

From 13d00a740769d12f2a41e95903448cd6c088c73d Mon Sep 17 00:00:00 2001
From: Chris Lumens <clumens@redhat.com>
Date: Tue, 15 Feb 2022 12:05:34 -0500
Subject: [PATCH] Low: libcrmservice: Additional metadata fix for systemd
 templates.

A previous patch for this did not handle the possibility of templates
used with a unit file suffix.  For example, chrony-dnssrv@ would work
but chrony-dnssrv@.template would not.

This patch takes care of the extra case.  Additionally, it uses the
"pacemaker" instance name for both cases.

See: rhbz#2045096
---
 lib/services/systemd.c | 32 +++++++++++++++++++++++++-------
 1 file changed, 25 insertions(+), 7 deletions(-)

diff --git a/lib/services/systemd.c b/lib/services/systemd.c
index d87b28742..5010fa545 100644
--- a/lib/services/systemd.c
+++ b/lib/services/systemd.c
@@ -208,21 +208,39 @@ systemd_unit_extension(const char *name)
 static char *
 systemd_service_name(const char *name, bool add_instance_name)
 {
+    const char *dot = NULL;
+
     if (pcmk__str_empty(name)) {
         return NULL;
     }
 
-    if (systemd_unit_extension(name)) {
-        return strdup(name);
-
     /* Services that end with an @ sign are systemd templates.  They expect an
      * instance name to follow the service name.  If no instance name was
-     * provided, just add "x" to the string as the instance name.  It doesn't
-     * seem to matter for purposes of looking up whether a service exists or
-     * not.
+     * provided, just add "pacemaker" to the string as the instance name.  It
+     * doesn't seem to matter for purposes of looking up whether a service
+     * exists or not.
+     *
+     * A template can be specified either with or without the unit extension,
+     * so this block handles both cases.
      */
+    dot = systemd_unit_extension(name);
+
+    if (dot) {
+        if (dot != name && *(dot-1) == '@') {
+            char *s = NULL;
+
+            if (asprintf(&s, "%.*spacemaker%s", (int) (dot-name), name, dot) == -1) {
+                /* If asprintf fails, just return name. */
+                return strdup(name);
+            }
+
+            return s;
+        } else {
+            return strdup(name);
+        }
+
     } else if (add_instance_name && *(name+strlen(name)-1) == '@') {
-        return crm_strdup_printf("%sx.service", name);
+        return crm_strdup_printf("%spacemaker.service", name);
 
     } else {
         return crm_strdup_printf("%s.service", name);
-- 
2.34.1