HCoop / hcoop / debian / exim4.git / blame
| Commit | Line | Data |
|---|---|---|
| 420a0d19 CE |
1 | /************************************************* |
| 2 | * Exim - an Internet mail transport agent * | |
| 3 | *************************************************/ | |
| 4 | ||
| 5 | /* Copyright (c) University of Cambridge 1995 - 2009 */ | |
| 6 | /* See the file NOTICE for conditions of use and distribution. */ | |
| 7 | ||
| 8 | #include "../exim.h" | |
| 9 | #include "rf_functions.h" | |
| 10 | ||
| 11 | ||
| 12 | /************************************************* | |
| 13 | * Get uid/gid for a router * | |
| 14 | *************************************************/ | |
| 15 | ||
| 16 | /* This function is called by routers to sort out the uid/gid values which are | |
| 17 | passed with an address for use by local transports. | |
| 18 | ||
| 19 | Arguments: | |
| 20 | rblock the router block | |
| 21 | addr the address being worked on | |
| 22 | ugid pointer to a ugid block to fill in | |
| 23 | ||
| 24 | Returns: TRUE if all goes well, else FALSE | |
| 25 | */ | |
| 26 | ||
| 27 | BOOL | |
| 28 | rf_get_ugid(router_instance *rblock, address_item *addr, ugid_block *ugid) | |
| 29 | { | |
| 30 | struct passwd *upw = NULL; | |
| 31 | ||
| 32 | /* Initialize from fixed values */ | |
| 33 | ||
| 34 | ugid->uid = rblock->uid; | |
| 35 | ugid->gid = rblock->gid; | |
| 36 | ugid->uid_set = rblock->uid_set; | |
| 37 | ugid->gid_set = rblock->gid_set; | |
| 38 | ugid->initgroups = rblock->initgroups; | |
| 39 | ||
| 40 | /* If there is no fixed uid set, see if there's a dynamic one that can | |
| 41 | be expanded and possibly looked up. */ | |
| 42 | ||
| 43 | if (!ugid->uid_set && rblock->expand_uid != NULL) | |
| 44 | { | |
| 45 | if (route_find_expanded_user(rblock->expand_uid, rblock->name, US"router", | |
| 46 | &upw, &(ugid->uid), &(addr->message))) ugid->uid_set = TRUE; | |
| 47 | else return FALSE; | |
| 48 | } | |
| 49 | ||
| 50 | /* Likewise for the gid */ | |
| 51 | ||
| 52 | if (!ugid->gid_set && rblock->expand_gid != NULL) | |
| 53 | { | |
| 54 | if (route_find_expanded_group(rblock->expand_gid, rblock->name, US"router", | |
| 55 | &(ugid->gid), &(addr->message))) ugid->gid_set = TRUE; | |
| 56 | else return FALSE; | |
| 57 | } | |
| 58 | ||
| 59 | /* If a uid is set, then a gid must also be available; use one from the passwd | |
| 60 | lookup if it happened. */ | |
| 61 | ||
| 62 | if (ugid->uid_set && !ugid->gid_set) | |
| 63 | { | |
| 64 | if (upw != NULL) | |
| 65 | { | |
| 66 | ugid->gid = upw->pw_gid; | |
| 67 | ugid->gid_set = TRUE; | |
| 68 | } | |
| 69 | else | |
| 70 | { | |
| 71 | addr->message = string_sprintf("user set without group for %s router", | |
| 72 | rblock->name); | |
| 73 | return FALSE; | |
| 74 | } | |
| 75 | } | |
| 76 | ||
| 77 | return TRUE; | |
| 78 | } | |
| 79 | ||
| 80 | /* End of rf_get_ugid.c */ |