From d6db18e8ae719b97ac2bcebe520e710b601014e7 Mon Sep 17 00:00:00 2001
From: unknown <monty@mysql.com>
Date: Thu, 3 Jun 2004 01:55:47 +0300
Subject: Added authentication code that was missed in merge Added new windows
 configuration

VC++Files/client/mysqlclient.dsp:
  Added new configuration
VC++Files/zlib/zlib.dsp:
  Added new configuration
libmysql/libmysql.c:
  Moved check function from libmysql.c to client.c
sql-common/client.c:
  Moved check function from libmysql.c to client.c
---
 sql-common/client.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 57 insertions(+), 1 deletion(-)

(limited to 'sql-common/client.c')

diff --git a/sql-common/client.c b/sql-common/client.c
index 591a0b9f0cb..87e62b5cd11 100644
--- a/sql-common/client.c
+++ b/sql-common/client.c
@@ -751,6 +751,58 @@ static my_bool is_NT(void)
 }
 #endif
 
+
+#ifdef CHECK_LICENSE
+/*
+  Check server side variable 'license'.
+  If the variable does not exist or does not contain 'Commercial', 
+  we're talking to non-commercial server from commercial client.
+  SYNOPSIS
+    check_license()
+  RETURN VALUE
+    0  success
+   !0  network error or the server is not commercial.
+       Error code is saved in mysql->net.last_errno.
+*/
+
+static int check_license(MYSQL *mysql)
+{
+  MYSQL_ROW row;
+  MYSQL_RES *res;
+  NET *net= &mysql->net;
+  static const char query[]= "SELECT @@license";
+  static const char required_license[]= STRINGIFY_ARG(LICENSE);
+
+  if (mysql_real_query(mysql, query, sizeof(query)-1))
+  {
+    if (net->last_errno == ER_UNKNOWN_SYSTEM_VARIABLE)
+    {
+      net->last_errno= CR_WRONG_LICENSE;
+      sprintf(net->last_error, ER(net->last_errno), required_license);
+    }
+    return 1;
+  }
+  if (!(res= mysql_use_result(mysql)))
+    return 1;
+  row= mysql_fetch_row(res);
+  /* 
+    If no rows in result set, or column value is NULL (none of these
+    two is ever true for server variables now), or column value
+    mismatch, set wrong license error.
+  */
+  if (!net->last_errno &&
+      (!row || !row[0] ||
+       strncmp(row[0], required_license, sizeof(required_license))))
+  {
+    net->last_errno= CR_WRONG_LICENSE;
+    sprintf(net->last_error, ER(net->last_errno), required_license);
+  }
+  mysql_free_result(res);
+  return net->last_errno;
+}
+#endif /* CHECK_LICENSE */
+
+
 /**************************************************************************
   Shut down connection
 **************************************************************************/
@@ -1996,10 +2048,14 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
       goto error;
   }
 
-
   if (client_flag & CLIENT_COMPRESS)		/* We will use compression */
     net->compress=1;
 
+#ifdef CHECK_LICENSE 
+  if (check_license(mysql))
+    goto error;
+#endif
+
   if (db && mysql_select_db(mysql,db))
     goto error;
 
-- 
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