TOOLS: don't overwrite config.ldb

This partially reverts d2d8f34
There should be no reason for 'sssctl' to run if SSSD itself isn't
running (or wasn't run so 'config.ldb' is absent).

Enforced recreation of 'config.ldb', on the other hand, might spoil
file ownership, as 'sssct' is typically run under 'root', but SSSD
itself might running under 'sssd' user.

This also reverts f405a4a
` confdb_expand_app_domains()` in `sss_tool_domains_init()` isn't
needed anymore, because 'sssctl' now uses 'config.ldb' created by
'monitor' where this expansion was already done.

src/tests/intg/test_sssctl.py

@@ -496,7 +496,7 @@ def test_debug_level_no_sssd(conf_stub_domain, portable_LC_ALL):
                         stderr_output=subprocess.STDOUT)
     except subprocess.CalledProcessError as cpe:
         assert cpe.returncode == 1
-        assert "SSSD is not running" in cpe.output
+        assert "SSSD isn't configured" in cpe.output
 
     try:
         get_call_output(["sssctl", "debug-level", "0x70"], check=True,

src/tools/common/sss_tools.c

@@ -26,7 +26,6 @@
 #include "config.h"
 #include "util/util.h"
 #include "confdb/confdb.h"
-#include "confdb/confdb_setup.h"
 #include "db/sysdb.h"
 #include "tools/common/sss_tools.h"
 
@@ -94,18 +93,25 @@ static errno_t sss_tool_confdb_init(TALLOC_CTX *mem_ctx,
     struct confdb_ctx *confdb;
     char *path;
     errno_t ret;
+    struct stat statbuf;
 
     path = talloc_asprintf(mem_ctx, "%s/%s", DB_PATH, CONFDB_FILE);
     if (path == NULL) {
         return ENOMEM;
     }
 
-    ret = confdb_setup(mem_ctx, path,
-                       SSSD_CONFIG_FILE, CONFDB_DEFAULT_CONFIG_DIR,
-                       NULL, false, &confdb);
+    ret = stat(path, &statbuf);
+    if (ret != 0) {
+        ret = errno;
+        DEBUG(SSSDBG_FATAL_FAILURE,
+              "Can't access '%s', probably SSSD isn't configured\n", path);
+        return ret;
+    }
+
+    ret = confdb_init(mem_ctx, &confdb, path);
     talloc_zfree(path);
     if (ret != EOK) {
-        DEBUG(SSSDBG_FATAL_FAILURE, "Unable to setup ConfDB [%d]: %s\n",
+        DEBUG(SSSDBG_FATAL_FAILURE, "Unable to connect to configDB [%d]: %s\n",
               ret, sss_strerror(ret));
         return ret;
     }
@@ -125,14 +131,6 @@ static errno_t sss_tool_domains_init(TALLOC_CTX *mem_ctx,
     struct sss_domain_info *dom;
     errno_t ret;
 
-    ret = confdb_expand_app_domains(confdb);
-    if (ret != EOK) {
-        DEBUG(SSSDBG_CRIT_FAILURE,
-              "Unable to expand application domains [%d]: %s\n",
-              ret, sss_strerror(ret));
-        return ret;
-    }
-
     ret = confdb_get_domains(confdb, &domains);
     if (ret != EOK) {
         DEBUG(SSSDBG_CRIT_FAILURE, "Unable to setup domains [%d]: %s\n",