projects / exim.git / blame
| Commit | Line | Data |
|---|---|---|
| 0a49a7a4 | 1 | /* $Cambridge: exim/src/src/routers/rf_get_transport.c,v 1.5 2009/11/16 19:50:38 nm4 Exp $ */ |
| 0756eb3c PH |
2 | |
| 3 | /************************************************* | |
| 4 | * Exim - an Internet mail transport agent * | |
| 5 | *************************************************/ | |
| 6 | ||
| 0a49a7a4 | 7 | /* Copyright (c) University of Cambridge 1995 - 2009 */ |
| 0756eb3c PH |
8 | /* See the file NOTICE for conditions of use and distribution. */ |
| 9 | ||
| 10 | #include "../exim.h" | |
| 11 | #include "rf_functions.h" | |
| 12 | ||
| 13 | ||
| 14 | /************************************************* | |
| 15 | * Get transport for a router * | |
| 16 | *************************************************/ | |
| 17 | ||
| 18 | /* If transport_name contains $, it must be expanded each time and used as a | |
| 19 | transport name. Otherwise, look up the transport only if the destination is not | |
| 20 | already set. | |
| 21 | ||
| 22 | Some routers (e.g. accept) insist that their transport option is set at | |
| 23 | initialization time. However, for some (e.g. file_transport in redirect), there | |
| 24 | is no such check, because the transport may not be required. Calls to this | |
| 25 | function from the former type of router have require_name = NULL, because it | |
| 26 | will never be used. NULL is also used in verify_only cases, where a transport | |
| 27 | is not required. | |
| 28 | ||
| 29 | Arguments: | |
| 30 | tpname the text of the transport name | |
| 31 | tpptr where to put the transport | |
| 32 | addr the address being processed | |
| 33 | router_name for error messages | |
| 34 | require_name used in the error message if transport is unset | |
| 35 | ||
| 36 | Returns: TRUE if *tpptr is already set and tpname has no '$' in it; | |
| 37 | TRUE if a transport has been placed in tpptr; | |
| 38 | FALSE if there's a problem, in which case | |
| 39 | addr->message contains a message, and addr->basic_errno has | |
| 40 | ERRNO_BADTRANSPORT set in it. | |
| 41 | */ | |
| 42 | ||
| 43 | BOOL | |
| 44 | rf_get_transport(uschar *tpname, transport_instance **tpptr, address_item *addr, | |
| 45 | uschar *router_name, uschar *require_name) | |
| 46 | { | |
| 47 | uschar *ss; | |
| 48 | BOOL expandable; | |
| 49 | transport_instance *tp; | |
| 50 | ||
| 51 | if (tpname == NULL) | |
| 52 | { | |
| 53 | if (require_name == NULL) return TRUE; | |
| 54 | addr->basic_errno = ERRNO_BADTRANSPORT; | |
| 55 | addr->message = string_sprintf("%s unset in %s router", require_name, | |
| 56 | router_name); | |
| 57 | return FALSE; | |
| 58 | } | |
| 59 | ||
| 60 | expandable = Ustrchr(tpname, '$') != NULL; | |
| 61 | if (*tpptr != NULL && !expandable) return TRUE; | |
| 62 | ||
| 63 | if (expandable) | |
| 64 | { | |
| 65 | ss = expand_string(tpname); | |
| 66 | if (ss == NULL) | |
| 67 | { | |
| 68 | addr->basic_errno = ERRNO_BADTRANSPORT; | |
| 69 | addr->message = string_sprintf("failed to expand transport " | |
| 70 | "\"%s\" in %s router: %s", tpname, router_name, expand_string_message); | |
| 71 | return FALSE; | |
| 72 | } | |
| 73 | } | |
| 74 | else ss = tpname; | |
| 75 | ||
| 76 | for (tp = transports; tp != NULL; tp = tp->next) | |
| 77 | { | |
| 78 | if (Ustrcmp(tp->name, ss) == 0) | |
| 79 | { | |
| 80 | DEBUG(D_route) debug_printf("set transport %s\n", ss); | |
| 81 | *tpptr = tp; | |
| 82 | return TRUE; | |
| 83 | } | |
| 84 | } | |
| 85 | ||
| 86 | addr->basic_errno = ERRNO_BADTRANSPORT; | |
| 87 | addr->message = string_sprintf("transport \"%s\" not found in %s router", ss, | |
| 88 | router_name); | |
| 89 | return FALSE; | |
| 90 | } | |
| 91 | ||
| 92 | /* End of rf_get_transport.c */ |