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-rw-r--r--src/lookups/whoson.c102
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diff --git a/src/lookups/whoson.c b/src/lookups/whoson.c
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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. */
+
+/* This code originally came from Robert Wal. */
+
+#include "../exim.h"
+
+
+#include <whoson.h> /* Public header */
+
+
+/*************************************************
+* Open entry point *
+*************************************************/
+
+/* See local README for interface description. */
+
+static void *
+whoson_open(const uschar * filename, uschar ** errmsg)
+{
+filename = filename; /* Keep picky compilers happy */
+errmsg = errmsg;
+return (void *)(1); /* Just return something non-null */
+}
+
+
+/*************************************************
+* Find entry point *
+*************************************************/
+
+/* See local README for interface description. */
+
+static int
+whoson_find(void * handle, const uschar * filename, uschar * query, int length,
+ uschar ** result, uschar ** errmsg, uint * do_cache, const uschar * opts)
+{
+uschar buffer[80];
+handle = handle; /* Keep picky compilers happy */
+filename = filename;
+length = length;
+errmsg = errmsg;
+do_cache = do_cache;
+
+switch (wso_query(CS query, CS buffer, sizeof(buffer)))
+ {
+ case 0:
+ *result = string_copy(buffer); /* IP in database; return name of user */
+ return OK;
+
+ case +1:
+ return FAIL; /* IP not in database */
+
+ default:
+ *errmsg = string_sprintf("WHOSON: failed to complete: %s", buffer);
+ return DEFER;
+ }
+}
+
+
+
+/*************************************************
+* Version reporting entry point *
+*************************************************/
+
+/* See local README for interface description. */
+
+#include "../version.h"
+
+void
+whoson_version_report(FILE *f)
+{
+fprintf(f, "Library version: Whoson: Runtime: %s\n", wso_version());
+#ifdef DYNLOOKUP
+fprintf(f, " Exim version %s\n", EXIM_VERSION_STR);
+#endif
+}
+
+static lookup_info _lookup_info = {
+ .name = US"whoson", /* lookup name */
+ .type = lookup_querystyle, /* query-style lookup */
+ .open = whoson_open, /* open function */
+ .check = NULL, /* check function */
+ .find = whoson_find, /* find function */
+ .close = NULL, /* no close function */
+ .tidy = NULL, /* no tidy function */
+ .quote = NULL, /* no quoting function */
+ .version_report = whoson_version_report /* version reporting */
+};
+
+#ifdef DYNLOOKUP
+#define whoson_lookup_module_info _lookup_module_info
+#endif
+
+static lookup_info *_lookup_list[] = { &_lookup_info };
+lookup_module_info whoson_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
+
+/* End of lookups/whoson.c */