-/* $Cambridge: exim/src/src/lookups/ldap.c,v 1.12 2006/07/17 09:18:09 ph10 Exp $ */
+/* $Cambridge: exim/src/src/lookups/ldap.c,v 1.15 2009/11/16 19:50:38 nm4 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2006 */
+/* Copyright (c) University of Cambridge 1995 - 2009 */
/* See the file NOTICE for conditions of use and distribution. */
/* Many thanks to Stuart Lynne for contributing the original code for this
#include "../exim.h"
#include "lf_functions.h"
-#include "ldap.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 LDAP headers
-available for compiling. Therefore, compile these functions only if LOOKUP_LDAP
-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_LDAP
-static void dummy(int x) { dummy(x-1); }
-#else
/* Include LDAP headers. The code below uses some "old" LDAP interfaces that
(1) If we get LDAP_SIZELIMIT_EXCEEDED, just carry on, to return the
truncated result list.
- (2) The range of errors defined by LDAP_NAME_ERROR generally mean "that
+ (2) If we get LDAP_RES_SEARCH_REFERENCE, also just carry on. This was a
+ submitted patch that is reported to "do the right thing" with Solaris
+ LDAP libraries. (The problem it addresses apparently does not occur with
+ Open LDAP.)
+
+ (3) The range of errors defined by LDAP_NAME_ERROR generally mean "that
object does not, or cannot, exist in the database". For those cases we
fail the lookup.
- (3) All other non-successes here are treated as some kind of problem with
+ (4) All other non-successes here are treated as some kind of problem with
the lookup, so return DEFER (which is the default in error_yield).
*/
DEBUG(D_lookup) debug_printf("ldap_parse_result yielded %d: %s\n",
rc, ldap_err2string(rc));
-if (rc != LDAP_SUCCESS && rc != LDAP_SIZELIMIT_EXCEEDED)
+if (rc != LDAP_SUCCESS && rc != LDAP_SIZELIMIT_EXCEEDED
+ #ifdef LDAP_RES_SEARCH_REFERENCE
+ && rc != LDAP_RES_SEARCH_REFERENCE
+ #endif
+ )
{
*errmsg = string_sprintf("LDAP search failed - error %d: %s%s%s%s%s",
rc,
are handled by a common function, with a flag to differentiate between them.
The handle and filename arguments are not used. */
-int
+static int
eldap_find(void *handle, uschar *filename, uschar *ldap_url, int length,
uschar **result, uschar **errmsg, BOOL *do_cache)
{
return(control_ldap_search(ldap_url, SEARCH_LDAP_SINGLE, result, errmsg));
}
-int
+static int
eldapm_find(void *handle, uschar *filename, uschar *ldap_url, int length,
uschar **result, uschar **errmsg, BOOL *do_cache)
{
return(control_ldap_search(ldap_url, SEARCH_LDAP_MULTIPLE, result, errmsg));
}
-int
+static int
eldapdn_find(void *handle, uschar *filename, uschar *ldap_url, int length,
uschar **result, uschar **errmsg, BOOL *do_cache)
{
/* See local README for interface description. */
-void *
+static void *
eldap_open(uschar *filename, uschar **errmsg)
{
return (void *)(1); /* Just return something non-null */
/* See local README for interface description.
Make sure that eldap_dn does not refer to reclaimed or worse, freed store */
-void
+static void
eldap_tidy(void)
{
LDAP_CONNECTION *lcp = NULL;
-uschar *
+static uschar *
eldap_quote(uschar *s, uschar *opt)
{
register int c;
return quoted;
}
-#endif /* LOOKUP_LDAP */
+
+
+/*************************************************
+* Version reporting entry point *
+*************************************************/
+
+/* See local README for interface description. */
+
+#include "../version.h"
+
+void
+ldap_version_report(FILE *f)
+{
+#ifdef DYNLOOKUP
+fprintf(f, "Library version: LDAP: Exim version %s\n", EXIM_VERSION_STR);
+#endif
+}
+
+
+static lookup_info ldap_lookup_info = {
+ US"ldap", /* lookup name */
+ lookup_querystyle, /* query-style lookup */
+ eldap_open, /* open function */
+ NULL, /* check function */
+ eldap_find, /* find function */
+ NULL, /* no close function */
+ eldap_tidy, /* tidy function */
+ eldap_quote, /* quoting function */
+ ldap_version_report /* version reporting */
+};
+
+static lookup_info ldapdn_lookup_info = {
+ US"ldapdn", /* lookup name */
+ lookup_querystyle, /* query-style lookup */
+ eldap_open, /* sic */ /* open function */
+ NULL, /* check function */
+ eldapdn_find, /* find function */
+ NULL, /* no close function */
+ eldap_tidy, /* sic */ /* tidy function */
+ eldap_quote, /* sic */ /* quoting function */
+ NULL /* no version reporting (redundant) */
+};
+
+static lookup_info ldapm_lookup_info = {
+ US"ldapm", /* lookup name */
+ lookup_querystyle, /* query-style lookup */
+ eldap_open, /* sic */ /* open function */
+ NULL, /* check function */
+ eldapm_find, /* find function */
+ NULL, /* no close function */
+ eldap_tidy, /* sic */ /* tidy function */
+ eldap_quote, /* sic */ /* quoting function */
+ NULL /* no version reporting (redundant) */
+};
+
+#ifdef DYNLOOKUP
+#define ldap_lookup_module_info _lookup_module_info
+#endif
+
+static lookup_info *_lookup_list[] = { &ldap_lookup_info, &ldapdn_lookup_info, &ldapm_lookup_info };
+lookup_module_info ldap_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 3 };
/* End of lookups/ldap.c */
git://git.exim.org / exim.git / blobdiff