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-rw-r--r--src/routers/rf_expand_data.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/src/routers/rf_expand_data.c b/src/routers/rf_expand_data.c
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+++ b/src/routers/rf_expand_data.c
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+/*************************************************
+* 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 */