From f6efe9ce58f5c88c63f21527255552f27a12498d Mon Sep 17 00:00:00 2001
From: Nigel Metheringham <nigel@exim.org>
Date: Fri, 5 Mar 2010 15:59:29 +0000
Subject: [PATCH] Support mysql stored procedures.  Fixes: #965

---
 src/src/lookups/mysql.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/src/lookups/mysql.c b/src/src/lookups/mysql.c
index 240d1d95b..f2e9a1565 100644
--- a/src/src/lookups/mysql.c
+++ b/src/src/lookups/mysql.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/lookups/mysql.c,v 1.6 2009/11/16 19:50:38 nm4 Exp $ */
+/* $Cambridge: exim/src/src/lookups/mysql.c,v 1.7 2010/03/05 15:59:29 nm4 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -202,7 +202,7 @@ if (cn == NULL)
   if (mysql_real_connect(mysql_handle,
       /*  host        user         passwd     database */
       CS sdata[0], CS sdata[2], CS sdata[3], CS sdata[1],
-      port, CS socket, 0) == NULL)
+      port, CS socket, CLIENT_MULTI_RESULTS) == NULL)
     {
     *errmsg = string_sprintf("MYSQL connection failed: %s",
       mysql_error(mysql_handle));
@@ -291,6 +291,21 @@ while ((mysql_row_data = mysql_fetch_row(mysql_result)) != NULL)
     }
   }
 
+/* more results? -1 = no, >0 = error, 0 = yes (keep looping)
+   This is needed because of the CLIENT_MULTI_RESULTS on mysql_real_connect(),
+   we don't expect any more results. */
+
+while((i = mysql_next_result(mysql_handle)) >= 0) {
+   if(i == 0) {   /* Just ignore more results */
+     DEBUG(D_lookup) debug_printf("MYSQL: got unexpected more results\n");
+     continue;
+   }
+
+   *errmsg = string_sprintf("MYSQL: lookup result error when checking for more results: %s\n",
+       mysql_error(mysql_handle));
+   goto MYSQL_EXIT;
+}
+
 /* If result is NULL then no data has been found and so we return FAIL.
 Otherwise, we must terminate the string which has been built; string_cat()
 always leaves enough room for a terminating zero. */
-- 
2.30.2