From 60b23781949540ad214a331fa335da10f42fae7f Mon Sep 17 00:00:00 2001
From: Adam Dickmeiss <adam@indexdata.dk>
Date: Wed, 9 Jul 2014 16:46:05 +0200
Subject: [PATCH] echoedSearchRetrieveRequest for explain as well YAZ-776

---
 src/seshigh.c |    6 ++----
 src/srw.c     |    8 ++++++++
 src/srwutil.c |   12 ++++++++++++
 3 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/seshigh.c b/src/seshigh.c
index 4c9f4f6..eb99a79 100644
--- a/src/seshigh.c
+++ b/src/seshigh.c
@@ -1879,8 +1879,7 @@ static void process_http_request(association *assoc, request *req)
         }
         else if (sr->which == Z_SRW_explain_request)
         {
-            Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_explain_response,
-                                             sr->srw_version);
+            Z_SRW_PDU *res = yaz_srw_get_pdu_e(o, Z_SRW_explain_response, sr);
             stylesheet = sr->u.explain_request->stylesheet;
             if (num_diagnostic)
             {
@@ -1894,8 +1893,7 @@ static void process_http_request(association *assoc, request *req)
         }
         else if (sr->which == Z_SRW_scan_request)
         {
-            Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_scan_response,
-                                             sr->srw_version);
+            Z_SRW_PDU *res = yaz_srw_get_pdu_e(o, Z_SRW_scan_response, sr);
             stylesheet = sr->u.scan_request->stylesheet;
             if (num_diagnostic)
             {
diff --git a/src/srw.c b/src/srw.c
index 431696b..f7f2107 100644
--- a/src/srw.c
+++ b/src/srw.c
@@ -1053,6 +1053,14 @@ int yaz_srw_codec(ODR o, void * vptr, Z_SRW_PDU **handler_data,
                 yaz_srw_record(o, ptr1, &res->record, &res->extra_record,
                                client_data, version2);
             }
+            if ((*p)->extra_args)
+            {
+                xmlNode *p1 =
+                    xmlNewChild(ptr, 0, BAD_CAST "echoedExplainRequest", 0);
+                Z_SRW_extra_arg *ea = (*p)->extra_args;
+                for (; ea; ea = ea->next)
+                    add_xsd_string(p1, ea->name, ea->value);
+            }
             if (res->num_diagnostics)
             {
                 xmlNodePtr rptr = xmlNewChild(ptr, 0, BAD_CAST "diagnostics",
diff --git a/src/srwutil.c b/src/srwutil.c
index ef27e45..0f6d71c 100644
--- a/src/srwutil.c
+++ b/src/srwutil.c
@@ -497,6 +497,8 @@ int yaz_sru_decode(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
                 operation = "searchRetrieve";
             else if (scanClause)
                 operation = "scan";
+            else
+                operation = "explain";
         }
         version = yaz_negotiate_sru_version(version);
 
@@ -786,6 +788,16 @@ Z_SRW_PDU *yaz_srw_get_pdu_e(ODR o, int which, Z_SRW_PDU *req)
         if (req->u.request->sort_type == Z_SRW_sort_type_sort)
             l = append_extra_arg(o, l, "sortKeys",
                                  req->u.request->sort.sortKeys);
+        l = append_extra_arg(o, l, "stylesheet", req->u.request->stylesheet);
+
+    }
+    if (req->which == Z_SRW_explain_request &&
+        which == Z_SRW_explain_response)
+    {
+        Z_SRW_extra_arg **l = &res->extra_args;
+        l = append_extra_arg(o, l, "version", req->srw_version);
+        l = append_extra_arg(o, l, "stylesheet",
+                             req->u.explain_request->stylesheet);
     }
     return res;
 }
-- 
1.7.10.4