-/* $Cambridge: exim/src/src/lookups/mysql.c,v 1.1 2004/10/07 13:10:01 ph10 Exp $ */
+/* $Cambridge: exim/src/src/lookups/mysql.c,v 1.7 2010/03/05 15:59:29 nm4 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2004 */
+/* Copyright (c) University of Cambridge 1995 - 2009 */
/* See the file NOTICE for conditions of use and distribution. */
/* Thanks to Paul Kelly for contributing the original code for these
#include "../exim.h"
#include "lf_functions.h"
-#include "mysql.h" /* The local header */
-
-
-/* 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 MYSQL header
-available for compiling. Therefore, compile these functions only if
-LOOKUP_MYSQL 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_MYSQL
-static void dummy(int x) { dummy(x-1); }
-#else
-
#include <mysql.h> /* The system header */
/* See local README for interface description. */
-void *
+static void *
mysql_open(uschar *filename, uschar **errmsg)
{
return (void *)(1); /* Just return something non-null */
/* See local README for interface description. */
-void
+static void
mysql_tidy(void)
{
mysql_connection *cn;
if (mysql_real_connect(mysql_handle,
/* host user passwd database */
CS sdata[0], CS sdata[2], CS sdata[3], CS sdata[1],
- port, CS socket, 0) == NULL)
+ port, CS socket, CLIENT_MULTI_RESULTS) == NULL)
{
*errmsg = string_sprintf("MYSQL connection failed: %s",
mysql_error(mysql_handle));
}
}
+/* more results? -1 = no, >0 = error, 0 = yes (keep looping)
+ This is needed because of the CLIENT_MULTI_RESULTS on mysql_real_connect(),
+ we don't expect any more results. */
+
+while((i = mysql_next_result(mysql_handle)) >= 0) {
+ if(i == 0) { /* Just ignore more results */
+ DEBUG(D_lookup) debug_printf("MYSQL: got unexpected more results\n");
+ continue;
+ }
+
+ *errmsg = string_sprintf("MYSQL: lookup result error when checking for more results: %s\n",
+ mysql_error(mysql_handle));
+ goto MYSQL_EXIT;
+}
+
/* If result is NULL then no data has been found and so we return FAIL.
Otherwise, we must terminate the string which has been built; string_cat()
always leaves enough room for a terminating zero. */
*************************************************/
/* See local README for interface description. The handle and filename
-arguments are not used. Loop through a list of servers while the query is
-deferred with a retryable error. */
+arguments are not used. The code to loop through a list of servers while the
+query is deferred with a retryable error is now in a separate function that is
+shared with other SQL lookups. */
-int
+static int
mysql_find(void *handle, uschar *filename, uschar *query, int length,
uschar **result, uschar **errmsg, BOOL *do_cache)
{
-int sep = 0;
-uschar *server;
-uschar *list = mysql_servers;
-uschar buffer[512];
-
-DEBUG(D_lookup) debug_printf("MYSQL query: %s\n", query);
-
-while ((server = string_nextinlist(&list, &sep, buffer, sizeof(buffer))) != NULL)
- {
- BOOL defer_break = FALSE;
- int rc = perform_mysql_search(query, server, result, errmsg, &defer_break,
- do_cache);
- if (rc != DEFER || defer_break) return rc;
- }
-
-if (mysql_servers == NULL)
- *errmsg = US"no MYSQL servers defined (mysql_servers option)";
-
-return DEFER;
+return lf_sqlperform(US"MySQL", US"mysql_servers", mysql_servers, query,
+ result, errmsg, do_cache, perform_mysql_search);
}
Returns: the processed string or NULL for a bad option
*/
-uschar *
+static uschar *
mysql_quote(uschar *s, uschar *opt)
{
register int c;
}
-#endif /* MYSQL_LOOKUP */
+/*************************************************
+* Version reporting entry point *
+*************************************************/
+
+/* See local README for interface description. */
+
+#include "../version.h"
+
+void
+mysql_version_report(FILE *f)
+{
+fprintf(f, "Library version: MySQL: Compile: %s [%s]\n"
+ " Runtime: %s\n",
+ MYSQL_SERVER_VERSION, MYSQL_COMPILATION_COMMENT,
+ mysql_get_client_info());
+#ifdef DYNLOOKUP
+fprintf(f, " Exim version %s\n", EXIM_VERSION_STR);
+#endif
+}
+
+/* These are the lookup_info blocks for this driver */
+
+static lookup_info mysql_lookup_info = {
+ US"mysql", /* lookup name */
+ lookup_querystyle, /* query-style lookup */
+ mysql_open, /* open function */
+ NULL, /* no check function */
+ mysql_find, /* find function */
+ NULL, /* no close function */
+ mysql_tidy, /* tidy function */
+ mysql_quote, /* quoting function */
+ mysql_version_report /* version reporting */
+};
+
+#ifdef DYNLOOKUP
+#define mysql_lookup_module_info _lookup_module_info
+#endif
+
+static lookup_info *_lookup_list[] = { &mysql_lookup_info };
+lookup_module_info mysql_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
/* End of lookups/mysql.c */
git://git.exim.org / exim.git / blobdiff