[PATCH ulogd2 7/8] ulogd: default configure implementation

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Provide a default implementation for the configure hook which simply
calls ulogd_parse_configfile(), so simple plugins only need to provide
the config_keyset. This also triggers an "unknown key" error if a
plugin defines no config_keyset (aka it has no options), but the config
file contains directives for it.

Signed-off-by: Corubba Smith <corubba@xxxxxx>
---
 src/conffile.c |  7 ++++++-
 src/ulogd.c    | 21 ++++++++++++++-------
 2 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/src/conffile.c b/src/conffile.c
index f412804..b9027da 100644
--- a/src/conffile.c
+++ b/src/conffile.c
@@ -158,7 +158,12 @@ int config_parse_file(const char *section, struct config_keyset *kset)
 	}

 	if (!found) {
-		err = -ERRSECTION;
+		if (kset->num_ces == 0) {
+			/* If there are no options, then no section isnt an error. */
+			err = 0;
+		} else {
+			err = -ERRSECTION;
+		}
 		goto cpf_error;
 	}

diff --git a/src/ulogd.c b/src/ulogd.c
index 96cea8a..d72ede5 100644
--- a/src/ulogd.c
+++ b/src/ulogd.c
@@ -869,15 +869,22 @@ create_stack_resolve_keys(struct ulogd_pluginstance_stack *stack)
 			  pi_cur->plugin->name);
 		/* call plugin to tell us which keys it requires in
 		 * given configuration */
+		int ret;
 		if (pi_cur->plugin->configure) {
-			int ret = pi_cur->plugin->configure(pi_cur,
-							    stack);
-			if (ret < 0) {
-				ulogd_log(ULOGD_ERROR, "error during "
-					  "configure of plugin %s\n",
-					  pi_cur->plugin->name);
-				return ret;
+			ret = pi_cur->plugin->configure(pi_cur, stack);
+		} else {
+			struct config_keyset empty_kset = {.num_ces=0};
+			struct config_keyset *kset = &empty_kset;
+			if (pi_cur->config_kset) {
+				kset = pi_cur->config_kset;
 			}
+			ret = ulogd_parse_configfile(pi_cur->id, kset);
+		}
+		if (ret < 0) {
+			ulogd_log(ULOGD_ERROR, "error during "
+				  "configure of plugin %s\n",
+				  pi_cur->plugin->name);
+			return ret;
 		}
 	}

--
2.48.1






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