X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/0756eb3cb50d73a77b486e47528f7cb1bffdb299..1d28cc061677bd07d9bed48dd84bd5c590247043:/src/src/lookups/nis.c

diff --git a/src/src/lookups/nis.c b/src/src/lookups/nis.c
index bbb85b5bd..6a08ebc37 100644
--- a/src/src/lookups/nis.c
+++ b/src/src/lookups/nis.c
@@ -1,27 +1,14 @@
-/* $Cambridge: exim/src/src/lookups/nis.c,v 1.1 2004/10/07 13:10:01 ph10 Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2004 */
+/* Copyright (c) The Exim Maintainers 2020 - 2022 */
+/* Copyright (c) University of Cambridge 1995 - 2015 */
 /* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include "../exim.h"
 #include "lf_functions.h"
-#include "nis.h"
-
-/* We can't just compile this code and allow the library mechanism to omit the
-functions if they are not wanted, because we need to have the NIS header
-available for compiling. Therefore, compile these functions only if LOOKUP_NIS
-is defined. However, some compilers don't like compiling empty modules, so keep
-them happy with a dummy when skipping the rest. Make it reference itself to
-stop picky compilers complaining that it is unused, and put in a dummy argument
-to stop even pickier compilers complaining about infinite loops. */
-
-#ifndef LOOKUP_NIS
-static void dummy(int x) { dummy(x-1); }
-#else
 
 #include <rpcsvc/ypclnt.h>
 
@@ -33,13 +20,13 @@ static void dummy(int x) { dummy(x-1); }
 /* See local README for interface description. This serves for both
 the "nis" and "nis0" lookup types. */
 
-void *
-nis_open(uschar *filename, uschar **errmsg)
+static void *
+nis_open(const uschar * filename, uschar ** errmsg)
 {
 char *nis_domain;
 if (yp_get_default_domain(&nis_domain) != 0)
   {
-  *errmsg = string_sprintf("failed to get default NIS domain");
+  *errmsg = US"failed to get default NIS domain";
   return NULL;
   }
 return nis_domain;
@@ -55,15 +42,16 @@ return nis_domain;
 for nis0 because they are so short it isn't worth trying to use any common
 code. */
 
-int
-nis_find(void *handle, uschar *filename, uschar *keystring, int length,
-  uschar **result, uschar **errmsg, BOOL *do_cache)
+static int
+nis_find(void * handle, const uschar * filename, const uschar * keystring,
+  int length, uschar ** result, uschar ** errmsg, uint * do_cache,
+  const uschar * opts)
 {
 int rc;
 uschar *nis_data;
 int nis_data_length;
 do_cache = do_cache;   /* Placate picky compilers */
-if ((rc = yp_match(CS handle, CS filename, CS keystring, length,
+if ((rc = yp_match(CCS handle, CCS filename, CCS keystring, length,
     CSS &nis_data, &nis_data_length)) == 0)
   {
   *result = string_copy(nis_data);
@@ -81,15 +69,16 @@ return (rc == YPERR_KEY || rc == YPERR_MAP)? FAIL : DEFER;
 
 /* See local README for interface description. */
 
-int
-nis0_find(void *handle, uschar *filename, uschar *keystring, int length,
-  uschar **result, uschar **errmsg, BOOL *do_cache)
+static int
+nis0_find(void * handle, const uschar * filename, const uschar * keystring,
+  int length, uschar ** result, uschar ** errmsg, uint * do_cache,
+  const uschar * opts)
 {
 int rc;
 uschar *nis_data;
 int nis_data_length;
 do_cache = do_cache;   /* Placate picky compilers */
-if ((rc = yp_match(CS handle, CS filename, CS keystring, length + 1,
+if ((rc = yp_match(CCS handle, CCS filename, CCS keystring, length + 1,
     CSS &nis_data, &nis_data_length)) == 0)
   {
   *result = string_copy(nis_data);
@@ -99,6 +88,55 @@ if ((rc = yp_match(CS handle, CS filename, CS keystring, length + 1,
 return (rc == YPERR_KEY || rc == YPERR_MAP)? FAIL : DEFER;
 }
 
-#endif  /* LOOKUP_NIS */
+
+
+/*************************************************
+*         Version reporting entry point          *
+*************************************************/
+
+/* See local README for interface description. */
+
+#include "../version.h"
+
+gstring *
+nis_version_report(gstring * g)
+{
+#ifdef DYNLOOKUP
+g = string_fmt_append(g, "Library version: NIS: Exim version %s\n", EXIM_VERSION_STR);
+#endif
+return g;
+}
+
+
+static lookup_info nis_lookup_info = {
+  .name = US"nis",			/* lookup name */
+  .type = 0,				/* not abs file, not query style*/
+  .open = nis_open,			/* open function */
+  .check = NULL,			/* check function */
+  .find = nis_find,			/* find function */
+  .close = NULL,			/* no close function */
+  .tidy = NULL,				/* no tidy function */
+  .quote = NULL,			/* no quoting function */
+  .version_report = nis_version_report             /* version reporting */
+};
+
+static lookup_info nis0_lookup_info = {
+  .name = US"nis0",			/* lookup name */
+  .type = 0,				/* not absfile, not query style */
+  .open = nis_open,			/* sic */         /* open function */
+  .check = NULL,			/* check function */
+  .find = nis0_find,			/* find function */
+  .close = NULL,			/* no close function */
+  .tidy = NULL,				/* no tidy function */
+  .quote = NULL,			/* no quoting function */
+  .version_report = NULL                           /* no version reporting (redundant) */
+};
+
+#ifdef DYNLOOKUP
+#define nis_lookup_module_info _lookup_module_info
+#endif
+
+static lookup_info *_lookup_list[] = { &nis_lookup_info, &nis0_lookup_info };
+lookup_module_info nis_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 2 };
 
 /* End of lookups/nis.c */