From 5bed427b409db41140d5799c979ee556dd66393d Mon Sep 17 00:00:00 2001
From: Sebastian Harl <sh@tokkee.org>
Date: Thu, 9 Jun 2016 00:36:18 +0200
Subject: [PATCH] parse_identifier: Make hostname optional, if a default has
 been specified.

---
 src/daemon/common.c          | 21 +++++++++++++++++----
 src/daemon/common.h          |  3 ++-
 src/utils_cmd_flush.c        |  3 ++-
 src/utils_cmd_getthreshold.c |  3 ++-
 src/utils_cmd_getval.c       |  3 ++-
 src/utils_cmd_putval.c       |  3 ++-
 6 files changed, 27 insertions(+), 9 deletions(-)

diff --git a/src/daemon/common.c b/src/daemon/common.c
index 654a5a09..e05da5ce 100644
--- a/src/daemon/common.c
+++ b/src/daemon/common.c
@@ -1011,7 +1011,8 @@ int format_values (char *ret, size_t ret_len, /* {{{ */
 
 int parse_identifier (char *str, char **ret_host,
 		char **ret_plugin, char **ret_plugin_instance,
-		char **ret_type, char **ret_type_instance)
+		char **ret_type, char **ret_type_instance,
+		char *default_host)
 {
 	char *hostname = NULL;
 	char *plugin = NULL;
@@ -1030,8 +1031,19 @@ int parse_identifier (char *str, char **ret_host,
 
 	type = strchr (plugin, '/');
 	if (type == NULL)
-		return (-1);
-	*type = '\0'; type++;
+	{
+		if (default_host == NULL)
+			return (-1);
+		/* else: no host specified; use default */
+		type = plugin;
+		plugin = hostname;
+		hostname = default_host;
+	}
+	else
+	{
+		*type = '\0';
+		type++;
+	}
 
 	plugin_instance = strchr (plugin, '-');
 	if (plugin_instance != NULL)
@@ -1072,7 +1084,8 @@ int parse_identifier_vl (const char *str, value_list_t *vl) /* {{{ */
 
 	status = parse_identifier (str_copy, &host,
 			&plugin, &plugin_instance,
-			&type, &type_instance);
+			&type, &type_instance,
+			/* default_host = */ NULL);
 	if (status != 0)
 		return (status);
 
diff --git a/src/daemon/common.h b/src/daemon/common.h
index 6d01ca4b..67ca1c14 100644
--- a/src/daemon/common.h
+++ b/src/daemon/common.h
@@ -320,7 +320,8 @@ int format_values (char *ret, size_t ret_len,
 
 int parse_identifier (char *str, char **ret_host,
 		char **ret_plugin, char **ret_plugin_instance,
-		char **ret_type, char **ret_type_instance);
+		char **ret_type, char **ret_type_instance,
+		char *default_host);
 int parse_identifier_vl (const char *str, value_list_t *vl);
 int parse_value (const char *value, value_t *ret_value, int ds_type);
 int parse_values (char *buffer, value_list_t *vl, const data_set_t *ds);
diff --git a/src/utils_cmd_flush.c b/src/utils_cmd_flush.c
index cfd6a481..7e26be7b 100644
--- a/src/utils_cmd_flush.c
+++ b/src/utils_cmd_flush.c
@@ -82,7 +82,8 @@ cmd_status_t cmd_parse_flush (size_t argc, char **argv,
 			ret_flush->identifiers_num++;
 			if (parse_identifier (opt_value,
 						&id->host, &id->plugin, &id->plugin_instance,
-						&id->type, &id->type_instance) != 0)
+						&id->type, &id->type_instance,
+						NULL) != 0)
 			{
 				cmd_error (CMD_PARSE_ERROR, err,
 						"Invalid identifier `%s'.", opt_value);
diff --git a/src/utils_cmd_getthreshold.c b/src/utils_cmd_getthreshold.c
index b2a0a23b..e6086f27 100644
--- a/src/utils_cmd_getthreshold.c
+++ b/src/utils_cmd_getthreshold.c
@@ -101,7 +101,8 @@ int handle_getthreshold (FILE *fh, char *buffer)
 
   status = parse_identifier (identifier_copy, &host,
       &plugin, &plugin_instance,
-      &type, &type_instance);
+      &type, &type_instance,
+      /* default_host = */ NULL);
   if (status != 0)
   {
     DEBUG ("handle_getthreshold: Cannot parse identifier `%s'.", identifier);
diff --git a/src/utils_cmd_getval.c b/src/utils_cmd_getval.c
index 76af1894..3a8a2be8 100644
--- a/src/utils_cmd_getval.c
+++ b/src/utils_cmd_getval.c
@@ -55,7 +55,8 @@ cmd_status_t cmd_parse_getval (size_t argc, char **argv,
 
   status = parse_identifier (argv[0], &ret_getval->identifier.host,
       &ret_getval->identifier.plugin, &ret_getval->identifier.plugin_instance,
-      &ret_getval->identifier.type, &ret_getval->identifier.type_instance);
+      &ret_getval->identifier.type, &ret_getval->identifier.type_instance,
+      NULL);
   if (status != 0)
   {
     DEBUG ("cmd_parse_getval: Cannot parse identifier `%s'.", identifier_copy);
diff --git a/src/utils_cmd_putval.c b/src/utils_cmd_putval.c
index af6b484d..0a0af8ae 100644
--- a/src/utils_cmd_putval.c
+++ b/src/utils_cmd_putval.c
@@ -102,7 +102,8 @@ cmd_status_t cmd_parse_putval (size_t argc, char **argv,
 
 	status = parse_identifier (identifier, &hostname,
 			&plugin, &plugin_instance,
-			&type, &type_instance);
+			&type, &type_instance,
+			NULL);
 	if (status != 0)
 	{
 		DEBUG ("cmd_handle_putval: Cannot parse identifier `%s'.",
-- 
2.30.2