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/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
/* Copyright (c) University of Cambridge 1995 - 2015 */
/* Copyright (c) The Exim Maintainers 2020 */
/* See the file NOTICE for conditions of use and distribution. */
/* The "type" field in each item is a set of bit flags:
lookup_querystyle => this is a query-style lookup,
else single-key (+ file) style
lookup_absfile => an absolute file name is required,
(for single-key style only)
*/
typedef struct lookup_info {
uschar *name; /* e.g. "lsearch" */
int type; /* query/singlekey/abs-file */
void *(*open)( /* open function */
const uschar *, /* file name for those that have one */
uschar **); /* for error message */
BOOL (*check)( /* file checking function */
void *, /* handle */
const uschar *, /* file name */
int, /* modemask for file checking */
uid_t *, /* owners for file checking */
gid_t *, /* owngroups for file checking */
uschar **); /* for error messages */
int (*find)( /* find function */
void *, /* handle */
const uschar *, /* file name or NULL */
const uschar *, /* key or query */
int, /* length of key or query */
uschar **, /* for returning answer */
uschar **, /* for error message */
uint *, /* cache TTL, seconds */
const uschar *); /* options */
void (*close)( /* close function */
void *); /* handle */
void (*tidy)(void); /* tidy function */
uschar *(*quote)( /* quoting function */
uschar *, /* string to quote */
uschar *); /* additional data from quote name */
void (*version_report)( /* diagnostic function */
FILE *); /* fh to write to */
} lookup_info;
/* This magic number is used by the following lookup_module_info structure
for checking API compatibility. It used to be equivalent to the string"LMM3" */
#define LOOKUP_MODULE_INFO_MAGIC 0x4c4d4933
/* Version 2 adds: version_report */
/* Version 3 change: non/cache becomes TTL in seconds */
typedef struct lookup_module_info {
uint magic;
lookup_info **lookups;
uint lookupcount;
} lookup_module_info;
/* End of lookupapi.h */
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