monitor: Specific error message for missing sssd.conf

Specific error message is logged for missing sssd.conf file. New sssd specific
error value is introduced for this case.

Resolves:
https://fedorahosted.org/sssd/ticket/2156

4 files changed, 16 insertions, 3 deletions

diff --git a/src/confdb/confdb_setup.c b/src/confdb/confdb_setup.c
index b13553eaa..2a34e4f7a 100644
--- a/src/confdb/confdb_setup.c
+++ b/src/confdb/confdb_setup.c
@@ -155,8 +155,13 @@ int confdb_init_db(const char *config_file, struct confdb_ctx *cdb)
     /* Open config file */
     ret = sss_ini_config_file_open(init_data, config_file);
     if (ret != EOK) {
-        DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to open configuration file.\n"));
-        ret = EIO;
+        DEBUG(SSSDBG_TRACE_FUNC,
+              ("sss_ini_config_file_open failed: %s [%d]\n", strerror(ret),
+               ret));
+        if (ret == ENOENT) {
+            /* sss specific error denoting missing configuration file */
+            ret = ERR_MISSING_CONF;
+        }
         goto done;
     }
 
diff --git a/src/monitor/monitor.c b/src/monitor/monitor.c
index f8a02b8b8..92bac422a 100644
--- a/src/monitor/monitor.c
+++ b/src/monitor/monitor.c
@@ -1614,7 +1614,7 @@ static errno_t load_configuration(TALLOC_CTX *mem_ctx,
     ret = confdb_init_db(config_file, ctx->cdb);
     if (ret != EOK) {
         DEBUG(0, ("ConfDB initialization has failed [%s]\n",
-              strerror(ret)));
+              sss_strerror(ret)));
         goto done;
     }
 
@@ -2785,6 +2785,12 @@ int main(int argc, const char *argv[])
     ret = load_configuration(tmp_ctx, config_file, &monitor);
     if (ret != EOK) {
         switch (ret) {
+        case ERR_MISSING_CONF:
+            DEBUG(SSSDBG_CRIT_FAILURE,
+                  ("Configuration file: %s does not exist.\n", config_file));
+            sss_log(SSS_LOG_ALERT,
+                    "Configuration file: %s does not exist.\n", config_file);
+            break;
         case EPERM:
         case EACCES:
             DEBUG(SSSDBG_CRIT_FAILURE,
diff --git a/src/util/util_errors.c b/src/util/util_errors.c
index b3d10f97b..114c8b04f 100644
--- a/src/util/util_errors.c
+++ b/src/util/util_errors.c
@@ -50,6 +50,7 @@ struct err_string error_to_str[] = {
     { "Dynamic DNS update not possible while offline" }, /* ERR_DYNDNS_OFFLINE */
     { "Entry not found" }, /* ERR_NOT_FOUND */
     { "Domain not found" }, /* ERR_DOMAIN_NOT_FOUND */
+    { "Missing configuration file" }, /* ERR_MISSING_CONF */
 };
 
 
diff --git a/src/util/util_errors.h b/src/util/util_errors.h
index 685607c5b..bca45f392 100644
--- a/src/util/util_errors.h
+++ b/src/util/util_errors.h
@@ -72,6 +72,7 @@ enum sssd_errors {
     ERR_DYNDNS_OFFLINE,
     ERR_NOT_FOUND,
     ERR_DOMAIN_NOT_FOUND,
+    ERR_MISSING_CONF,
     ERR_LAST            /* ALWAYS LAST */
 };