[exim.git] / src / src / lookups / nis.c

/* $Cambridge: exim/src/src/lookups/nis.c,v 1.5 2009/11/16 19:50:38 nm4 Exp $ */

/*************************************************
*     Exim - an Internet mail transport agent    *
*************************************************/

/* Copyright (c) University of Cambridge 1995 - 2009 */
/* 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(uschar *filename, uschar **errmsg)
{
char *nis_domain;
if (yp_get_default_domain(&nis_domain) != 0)
  {
  *errmsg = string_sprintf("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, uschar *filename, uschar *keystring, int length,
  uschar **result, uschar **errmsg, BOOL *do_cache)
{
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,
    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, uschar *filename, uschar *keystring, int length,
  uschar **result, uschar **errmsg, BOOL *do_cache)
{
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,
    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"

void
nis_version_report(FILE *f)
{
#ifdef DYNLOOKUP
fprintf(f, "Library version: NIS: Exim version %s\n", EXIM_VERSION_STR);
#endif
}


static lookup_info nis_lookup_info = {
  US"nis",                       /* lookup name */
  0,                             /* not abs file, not query style*/
  nis_open,                      /* open function */
  NULL,                          /* check function */
  nis_find,                      /* find function */
  NULL,                          /* no close function */
  NULL,                          /* no tidy function */
  NULL,                          /* no quoting function */
  nis_version_report             /* version reporting */
};

static lookup_info nis0_lookup_info = {
  US"nis0",                      /* lookup name */
  0,                             /* not absfile, not query style */
  nis_open,    /* sic */         /* open function */
  NULL,                          /* check function */
  nis0_find,                     /* find function */
  NULL,                          /* no close function */
  NULL,                          /* no tidy function */
  NULL,                          /* no quoting function */
  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 */
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"
0756eb3c PH	12
	13	#include <rpcsvc/ypclnt.h>
	14
	15
	16	/*************************************************
	17	* Open entry point *
	18	*************************************************/
	19
	20	/* See local README for interface description. This serves for both
	21	the "nis" and "nis0" lookup types. */
	22
e6d225ae	23	static void *
0756eb3c PH	24	nis_open(uschar filename, uschar *errmsg)
	25	{
	26	char *nis_domain;
	27	if (yp_get_default_domain(&nis_domain) != 0)
	28	{
	29	*errmsg = string_sprintf("failed to get default NIS domain");
	30	return NULL;
	31	}
	32	return nis_domain;
	33	}
	34
	35
	36
	37	/*************************************************
	38	* Find entry point for nis *
	39	*************************************************/
	40
	41	/* See local README for interface description. A separate function is used
	42	for nis0 because they are so short it isn't worth trying to use any common
	43	code. */
	44
e6d225ae	45	static int
0756eb3c PH	46	nis_find(void handle, uschar filename, uschar *keystring, int length,
	47	uschar result, uschar errmsg, BOOL *do_cache)
	48	{
	49	int rc;
	50	uschar *nis_data;
	51	int nis_data_length;
	52	do_cache = do_cache; /* Placate picky compilers */
	53	if ((rc = yp_match(CS handle, CS filename, CS keystring, length,
	54	CSS &nis_data, &nis_data_length)) == 0)
	55	{
	56	*result = string_copy(nis_data);
	57	(result)[nis_data_length] = 0; / remove final '\n' */
	58	return OK;
	59	}
	60	return (rc == YPERR_KEY \|\| rc == YPERR_MAP)? FAIL : DEFER;
	61	}
	62
	63
	64
	65	/*************************************************
	66	* Find entry point for nis0 *
	67	*************************************************/
	68
	69	/* See local README for interface description. */
	70
e6d225ae	71	static int
0756eb3c PH	72	nis0_find(void handle, uschar filename, uschar *keystring, int length,
	73	uschar result, uschar errmsg, BOOL *do_cache)
	74	{
	75	int rc;
	76	uschar *nis_data;
	77	int nis_data_length;
	78	do_cache = do_cache; /* Placate picky compilers */
	79	if ((rc = yp_match(CS handle, CS filename, CS keystring, length + 1,
	80	CSS &nis_data, &nis_data_length)) == 0)
	81	{
	82	*result = string_copy(nis_data);
	83	(result)[nis_data_length] = 0; / remove final '\n' */
	84	return OK;
	85	}
	86	return (rc == YPERR_KEY \|\| rc == YPERR_MAP)? FAIL : DEFER;
	87	}
	88
6545de78 PP	89
	90
	91	/*************************************************
	92	* Version reporting entry point *
	93	*************************************************/
	94
	95	/* See local README for interface description. */
	96
	97	#include "../version.h"
	98
	99	void
	100	nis_version_report(FILE *f)
	101	{
	102	#ifdef DYNLOOKUP
	103	fprintf(f, "Library version: NIS: Exim version %s\n", EXIM_VERSION_STR);
	104	#endif
	105	}
	106
	107
e6d225ae DW	108	static lookup_info nis_lookup_info = {
	109	US"nis", /* lookup name */
	110	0, /* not abs file, not query style*/
	111	nis_open, /* open function */
	112	NULL, /* check function */
	113	nis_find, /* find function */
	114	NULL, /* no close function */
	115	NULL, /* no tidy function */
6545de78 PP	116	NULL, /* no quoting function */
6545de78 PP	117	nis_version_report /* version reporting */
e6d225ae DW	118	};
	119
	120	static lookup_info nis0_lookup_info = {
	121	US"nis0", /* lookup name */
	122	0, /* not absfile, not query style */
	123	nis_open, /* sic / / open function */
	124	NULL, /* check function */
	125	nis0_find, /* find function */
	126	NULL, /* no close function */
	127	NULL, /* no tidy function */
6545de78 PP	128	NULL, /* no quoting function */
6545de78 PP	129	NULL /* no version reporting (redundant) */
e6d225ae DW	130	};
	131
	132	#ifdef DYNLOOKUP
	133	#define nis_lookup_module_info _lookup_module_info
	134	#endif
	135
	136	static lookup_info *_lookup_list[] = { &nis_lookup_info, &nis0_lookup_info };
	137	lookup_module_info nis_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 2 };
0756eb3c PH	138
0756eb3c PH	139	/* End of lookups/nis.c */