1 files changed, 48 insertions, 0 deletions
diff --git a/src/routers/rf_expand_data.c b/src/routers/rf_expand_data.c
new file mode 100644
index 0000000..6a8ad17
--- /dev/null
+++ b/src/routers/rf_expand_data.c
@@ -0,0 +1,48 @@
+/*************************************************
+*     Exim - an Internet mail transport agent    *
+*************************************************/
+
+/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+
+#include "../exim.h"
+#include "rf_functions.h"
+
+
+/*************************************************
+*       Expand data string and handle errors     *
+*************************************************/
+
+/* This little function is used by a couple of routers for expanding things. It
+just saves repeating this code too many times. It does an expansion, and
+chooses a suitable return code on error.
+
+Arguments:
+  addr       the address that's being routed
+  s          the string to be expanded
+  prc        pointer to where to put the return code on failure
+
+Returns:     the expanded string, or NULL (with prc set) on failure
+*/
+
+uschar *
+rf_expand_data(address_item *addr, uschar *s, int *prc)
+{
+uschar *yield = expand_string(s);
+if (yield != NULL) return yield;
+if (f.expand_string_forcedfail)
+  {
+  DEBUG(D_route) debug_printf("forced failure for expansion of \"%s\"\n", s);
+  *prc = DECLINE;
+  }
+else
+  {
+  addr->message = string_sprintf("failed to expand \"%s\": %s", s,
+    expand_string_message);
+  *prc = DEFER;
+  }
+return NULL;
+}
+
+/* End of routers/rf_expand_data.c */