projects / exim.git / blame
| Commit | Line | Data |
|---|---|---|
| 0a49a7a4 | 1 | /* $Cambridge: exim/src/src/lookups/nis.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 "lf_functions.h" | |
| 12 | #include "nis.h" | |
| 13 | ||
| 14 | /* We can't just compile this code and allow the library mechanism to omit the | |
| 15 | functions if they are not wanted, because we need to have the NIS header | |
| 16 | available for compiling. Therefore, compile these functions only if LOOKUP_NIS | |
| 17 | is defined. However, some compilers don't like compiling empty modules, so keep | |
| 18 | them happy with a dummy when skipping the rest. Make it reference itself to | |
| 19 | stop picky compilers complaining that it is unused, and put in a dummy argument | |
| 20 | to stop even pickier compilers complaining about infinite loops. */ | |
| 21 | ||
| 22 | #ifndef LOOKUP_NIS | |
| 23 | static void dummy(int x) { dummy(x-1); } | |
| 24 | #else | |
| 25 | ||
| 26 | #include <rpcsvc/ypclnt.h> | |
| 27 | ||
| 28 | ||
| 29 | /************************************************* | |
| 30 | * Open entry point * | |
| 31 | *************************************************/ | |
| 32 | ||
| 33 | /* See local README for interface description. This serves for both | |
| 34 | the "nis" and "nis0" lookup types. */ | |
| 35 | ||
| 36 | void * | |
| 37 | nis_open(uschar *filename, uschar **errmsg) | |
| 38 | { | |
| 39 | char *nis_domain; | |
| 40 | if (yp_get_default_domain(&nis_domain) != 0) | |
| 41 | { | |
| 42 | *errmsg = string_sprintf("failed to get default NIS domain"); | |
| 43 | return NULL; | |
| 44 | } | |
| 45 | return nis_domain; | |
| 46 | } | |
| 47 | ||
| 48 | ||
| 49 | ||
| 50 | /************************************************* | |
| 51 | * Find entry point for nis * | |
| 52 | *************************************************/ | |
| 53 | ||
| 54 | /* See local README for interface description. A separate function is used | |
| 55 | for nis0 because they are so short it isn't worth trying to use any common | |
| 56 | code. */ | |
| 57 | ||
| 58 | int | |
| 59 | nis_find(void *handle, uschar *filename, uschar *keystring, int length, | |
| 60 | uschar **result, uschar **errmsg, BOOL *do_cache) | |
| 61 | { | |
| 62 | int rc; | |
| 63 | uschar *nis_data; | |
| 64 | int nis_data_length; | |
| 65 | do_cache = do_cache; /* Placate picky compilers */ | |
| 66 | if ((rc = yp_match(CS handle, CS filename, CS keystring, length, | |
| 67 | CSS &nis_data, &nis_data_length)) == 0) | |
| 68 | { | |
| 69 | *result = string_copy(nis_data); | |
| 70 | (*result)[nis_data_length] = 0; /* remove final '\n' */ | |
| 71 | return OK; | |
| 72 | } | |
| 73 | return (rc == YPERR_KEY || rc == YPERR_MAP)? FAIL : DEFER; | |
| 74 | } | |
| 75 | ||
| 76 | ||
| 77 | ||
| 78 | /************************************************* | |
| 79 | * Find entry point for nis0 * | |
| 80 | *************************************************/ | |
| 81 | ||
| 82 | /* See local README for interface description. */ | |
| 83 | ||
| 84 | int | |
| 85 | nis0_find(void *handle, uschar *filename, uschar *keystring, int length, | |
| 86 | uschar **result, uschar **errmsg, BOOL *do_cache) | |
| 87 | { | |
| 88 | int rc; | |
| 89 | uschar *nis_data; | |
| 90 | int nis_data_length; | |
| 91 | do_cache = do_cache; /* Placate picky compilers */ | |
| 92 | if ((rc = yp_match(CS handle, CS filename, CS keystring, length + 1, | |
| 93 | CSS &nis_data, &nis_data_length)) == 0) | |
| 94 | { | |
| 95 | *result = string_copy(nis_data); | |
| 96 | (*result)[nis_data_length] = 0; /* remove final '\n' */ | |
| 97 | return OK; | |
| 98 | } | |
| 99 | return (rc == YPERR_KEY || rc == YPERR_MAP)? FAIL : DEFER; | |
| 100 | } | |
| 101 | ||
| 102 | #endif /* LOOKUP_NIS */ | |
| 103 | ||
| 104 | /* End of lookups/nis.c */ |