and added files

[bcm963xx.git] / userapps / opensource / net-snmp / agent / helpers / serialize.c

diff --git a/userapps/opensource/net-snmp/agent/helpers/serialize.c b/userapps/opensource/net-snmp/agent/helpers/serialize.c
new file mode 100644 (file)
index 0000000..d875c6c
--- /dev/null
+++ b/userapps/opensource/net-snmp/agent/helpers/serialize.c
@@ -0,0 +1,100 @@
+#include <net-snmp/net-snmp-config.h>
+
+#if HAVE_STRING_H
+#include <string.h>
+#else
+#include <strings.h>
+#endif
+
+#include <net-snmp/net-snmp-includes.h>
+#include <net-snmp/agent/net-snmp-agent-includes.h>
+
+#include <net-snmp/agent/serialize.h>
+
+#if HAVE_DMALLOC_H
+#include <dmalloc.h>
+#endif
+
+/** @defgroup serialize serialize: Calls sub handlers one request at a time.
+ *  @ingroup handler
+ *  This functionally passes in one request at a time
+ *  into lower handlers rather than a whole bunch of requests at once.
+ *  This is useful for handlers that don't want to iterate through the
+ *  request lists themselves.  Generally, this is probably less
+ *  efficient so use with caution.  The serialize handler might be
+ *  useable to dynamically fix handlers with broken looping code,
+ *  however.
+ *  @{
+ */
+
+/** returns a serialize handler that can be injected into a given
+ *  handler chain.  
+ */
+netsnmp_mib_handler *
+netsnmp_get_serialize_handler(void)
+{
+    return netsnmp_create_handler("serialize",
+                                  netsnmp_serialize_helper_handler);
+}
+
+/** functionally the same as calling netsnmp_register_handler() but also
+ * injects a serialize handler at the same time for you. */
+int
+netsnmp_register_serialize(netsnmp_handler_registration *reginfo)
+{
+    netsnmp_inject_handler(reginfo, netsnmp_get_serialize_handler());
+    return netsnmp_register_handler(reginfo);
+}
+
+/** Implements the serial handler */
+int
+netsnmp_serialize_helper_handler(netsnmp_mib_handler *handler,
+                                 netsnmp_handler_registration *reginfo,
+                                 netsnmp_agent_request_info *reqinfo,
+                                 netsnmp_request_info *requests)
+{
+
+    netsnmp_request_info *request, *requesttmp;
+
+    DEBUGMSGTL(("helper:serialize", "Got request\n"));
+    /*
+     * loop through requests 
+     */
+    for (request = requests; request; request = request->next) {
+        int             ret;
+
+        /*
+         * store next pointer and delete it 
+         */
+        requesttmp = request->next;
+        request->next = NULL;
+
+        /*
+         * call the next handler 
+         */
+        ret =
+            netsnmp_call_next_handler(handler, reginfo, reqinfo, request);
+
+        /*
+         * restore original next pointer 
+         */
+        request->next = requesttmp;
+
+        if (ret != SNMP_ERR_NOERROR)
+            return ret;
+    }
+
+    return SNMP_ERR_NOERROR;
+}
+
+/** 
+ *  initializes the serialize helper which then registers a serialize
+ *  handler as a run-time injectable handler for configuration file
+ *  use.
+ */
+void
+netsnmp_init_serialize(void)
+{
+    netsnmp_register_handler_by_name("serialize",
+                                     netsnmp_get_serialize_handler());
+}