X-Git-Url: https://git.tokkee.org/?p=sysdb.git;a=blobdiff_plain;f=src%2Ffrontend%2Fquery.c;h=2a6aecff6b1513856f22c9929646bb64c34367c7;hp=675a002eaea897ece7dc4301c5fcd00f2660081a;hb=2ced8af7848867b7589a7c068f5f51c47dc7ea01;hpb=40b40eda60b517297089a209f3681c8ec064cd68

diff --git a/src/frontend/query.c b/src/frontend/query.c
index 675a002..2a6aecf 100644
--- a/src/frontend/query.c
+++ b/src/frontend/query.c
@@ -34,10 +34,88 @@
 
 #include <errno.h>
 
+/*
+ * private helper functions
+ */
+
+static int
+lookup_tojson(sdb_store_obj_t *obj, void *user_data)
+{
+	sdb_strbuf_t *buf = user_data;
+	if (sdb_strbuf_len(buf) > 1)
+		sdb_strbuf_append(buf, ",");
+	return sdb_store_host_tojson(obj, buf, /* flags = */ 0);
+} /* lookup_tojson */
+
 /*
  * public API
  */
 
+int
+sdb_fe_exec(sdb_conn_t *conn, sdb_conn_node_t *node)
+{
+	if (! node)
+		return -1;
+
+	switch (node->cmd) {
+		case CONNECTION_FETCH:
+			return sdb_fe_fetch(conn, CONN_FETCH(node)->name);
+		case CONNECTION_LIST:
+			return sdb_fe_list(conn);
+		case CONNECTION_LOOKUP:
+			return sdb_fe_lookup(conn, CONN_LOOKUP(node)->matcher->matcher);
+
+		default:
+			sdb_log(SDB_LOG_ERR, "frontend: Unknown command %i", node->cmd);
+			return -1;
+	}
+	return -1;
+} /* sdb_fe_exec */
+
+int
+sdb_fe_fetch(sdb_conn_t *conn, const char *name)
+{
+	sdb_strbuf_t *buf;
+	sdb_store_obj_t *host;
+
+	host = sdb_store_get_host(name);
+	if (! host) {
+		sdb_log(SDB_LOG_DEBUG, "frontend: Failed to fetch host '%s': "
+				"not found", name);
+
+		sdb_strbuf_sprintf(conn->errbuf, "Host %s not found", name);
+		return -1;
+	}
+
+	buf = sdb_strbuf_create(1024);
+	if (! buf) {
+		char errbuf[1024];
+		sdb_log(SDB_LOG_ERR, "frontend: Failed to create "
+				"buffer to handle FETCH command: %s",
+				sdb_strerror(errno, errbuf, sizeof(errbuf)));
+
+		sdb_strbuf_sprintf(conn->errbuf, "Out of memory");
+		sdb_strbuf_destroy(buf);
+		sdb_object_deref(SDB_OBJ(host));
+		return -1;
+	}
+
+	if (sdb_store_host_tojson(host, buf, /* flags = */ 0)) {
+		sdb_log(SDB_LOG_ERR, "frontend: Failed to serialize "
+				"host '%s' to JSON", name);
+		sdb_strbuf_sprintf(conn->errbuf, "Out of memory");
+		sdb_strbuf_destroy(buf);
+		sdb_object_deref(SDB_OBJ(host));
+		return -1;
+	}
+
+	sdb_connection_send(conn, CONNECTION_OK,
+			(uint32_t)sdb_strbuf_len(buf), sdb_strbuf_string(buf));
+	sdb_strbuf_destroy(buf);
+	sdb_object_deref(SDB_OBJ(host));
+	return 0;
+} /* sdb_fe_fetch */
+
 int
 sdb_fe_list(sdb_conn_t *conn)
 {
@@ -55,7 +133,7 @@ sdb_fe_list(sdb_conn_t *conn)
 		return -1;
 	}
 
-	if (sdb_store_tojson(buf, /* flags = */ 0)) {
+	if (sdb_store_tojson(buf, /* flags = */ SDB_SKIP_ALL)) {
 		sdb_log(SDB_LOG_ERR, "frontend: Failed to serialize "
 				"store to JSON");
 		sdb_strbuf_sprintf(conn->errbuf, "Out of memory");
@@ -69,5 +147,39 @@ sdb_fe_list(sdb_conn_t *conn)
 	return 0;
 } /* sdb_fe_list */
 
+int
+sdb_fe_lookup(sdb_conn_t *conn, sdb_store_matcher_t *m)
+{
+	sdb_strbuf_t *buf;
+
+	buf = sdb_strbuf_create(1024);
+	if (! buf) {
+		char errbuf[1024];
+		sdb_log(SDB_LOG_ERR, "frontend: Failed to create "
+				"buffer to handle LOOKUP command: %s",
+				sdb_strerror(errno, errbuf, sizeof(errbuf)));
+
+		sdb_strbuf_sprintf(conn->errbuf, "Out of memory");
+		sdb_strbuf_destroy(buf);
+		return -1;
+	}
+
+	sdb_strbuf_append(buf, "[");
+
+	if (sdb_store_scan(m, lookup_tojson, buf)) {
+		sdb_log(SDB_LOG_ERR, "frontend: Failed to lookup hosts");
+		sdb_strbuf_sprintf(conn->errbuf, "Failed to lookup hosts");
+		sdb_strbuf_destroy(buf);
+		return -1;
+	}
+
+	sdb_strbuf_append(buf, "]");
+
+	sdb_connection_send(conn, CONNECTION_OK,
+			(uint32_t)sdb_strbuf_len(buf), sdb_strbuf_string(buf));
+	sdb_strbuf_destroy(buf);
+	return 0;
+} /* sdb_fe_lookup */
+
 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */