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0756eb3c PH |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
0a49a7a4 | 5 | /* Copyright (c) University of Cambridge 1995 - 2009 */ |
0756eb3c PH |
6 | /* See the file NOTICE for conditions of use and distribution. */ |
7 | ||
8 | ||
9 | #include "../exim.h" | |
10 | #include "rf_functions.h" | |
11 | ||
12 | ||
13 | /************************************************* | |
14 | * Expand data string and handle errors * | |
15 | *************************************************/ | |
16 | ||
17 | /* This little function is used by a couple of routers for expanding things. It | |
18 | just saves repeating this code too many times. It does an expansion, and | |
19 | chooses a suitable return code on error. | |
20 | ||
21 | Arguments: | |
22 | addr the address that's being routed | |
23 | s the string to be expanded | |
24 | prc pointer to where to put the return code on failure | |
25 | ||
26 | Returns: the expanded string, or NULL (with prc set) on failure | |
27 | */ | |
28 | ||
29 | uschar * | |
30 | rf_expand_data(address_item *addr, uschar *s, int *prc) | |
31 | { | |
32 | uschar *yield = expand_string(s); | |
33 | if (yield != NULL) return yield; | |
8768d548 | 34 | if (f.expand_string_forcedfail) |
0756eb3c PH |
35 | { |
36 | DEBUG(D_route) debug_printf("forced failure for expansion of \"%s\"\n", s); | |
37 | *prc = DECLINE; | |
38 | } | |
39 | else | |
40 | { | |
41 | addr->message = string_sprintf("failed to expand \"%s\": %s", s, | |
42 | expand_string_message); | |
43 | *prc = DEFER; | |
44 | } | |
45 | return NULL; | |
46 | } | |
47 | ||
48 | /* End of routers/rf_expand_data.c */ |