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/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
/* Copyright (c) The Exim Maintainers 2020 - 2022 */
/* Copyright (c) University of Cambridge 1995 - 2015 */
/* See the file NOTICE for conditions of use and distribution. */
#include "../exim.h"
#include "lf_functions.h"
#include <rpcsvc/ypclnt.h>
/*************************************************
* Open entry point *
*************************************************/
/* See local README for interface description. This serves for both
the "nis" and "nis0" lookup types. */
static void *
nis_open(const uschar * filename, uschar ** errmsg)
{
char *nis_domain;
if (yp_get_default_domain(&nis_domain) != 0)
{
*errmsg = US"failed to get default NIS domain";
return NULL;
}
return nis_domain;
}
/*************************************************
* Find entry point for nis *
*************************************************/
/* See local README for interface description. A separate function is used
for nis0 because they are so short it isn't worth trying to use any common
code. */
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(CCS handle, CCS filename, CCS keystring, length,
CSS &nis_data, &nis_data_length)) == 0)
{
*result = string_copy(nis_data);
(*result)[nis_data_length] = 0; /* remove final '\n' */
return OK;
}
return (rc == YPERR_KEY || rc == YPERR_MAP)? FAIL : DEFER;
}
/*************************************************
* Find entry point for nis0 *
*************************************************/
/* See local README for interface description. */
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(CCS handle, CCS filename, CCS keystring, length + 1,
CSS &nis_data, &nis_data_length)) == 0)
{
*result = string_copy(nis_data);
(*result)[nis_data_length] = 0; /* remove final '\n' */
return OK;
}
return (rc == YPERR_KEY || rc == YPERR_MAP)? FAIL : DEFER;
}
/*************************************************
* 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 */
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