#include "lf_functions.h"
#include <mysql.h> /* The system header */
+#include <mysql_version.h>
/* Structure and anchor for caching connections. */
resultptr where to store the result
errmsg where to point an error message
defer_break TRUE if no more servers are to be tried after DEFER
- do_cache set false if data is changed
+ do_cache set zero if data is changed
The server string is of the form "host/dbname/user/password". The host can be
host:port. This string is in a nextinlist temporary buffer, so can be
static int
perform_mysql_search(const uschar *query, uschar *server, uschar **resultptr,
- uschar **errmsg, BOOL *defer_break, BOOL *do_cache)
+ uschar **errmsg, BOOL *defer_break, uint *do_cache)
{
MYSQL *mysql_handle = NULL; /* Keep compilers happy */
MYSQL_RES *mysql_result = NULL;
/* See if we have a cached connection to the server */
-for (cn = mysql_connections; cn != NULL; cn = cn->next)
- {
+for (cn = mysql_connections; cn; cn = cn->next)
if (Ustrcmp(cn->server, server_copy) == 0)
{
mysql_handle = cn->handle;
break;
}
- }
/* If no cached connection, we must set one up. Mysql allows for a host name
and port to be specified. It also allows the name of a Unix socket to be used.
Unfortunately, this contains slashes, but its use is expected to be rare, so
the rather cumbersome syntax shouldn't inconvenience too many people. We use
-this: host:port(socket) where all the parts are optional. */
+this: host:port(socket)[group] where all the parts are optional.
+The "group" parameter specifies an option group from a MySQL option file. */
-if (cn == NULL)
+if (!cn)
{
uschar *p;
uschar *socket = NULL;
int port = 0;
+ uschar *group = US"exim";
+
+ if ((p = Ustrchr(sdata[0], '[')))
+ {
+ *p++ = 0;
+ group = p;
+ while (*p && *p != ']') p++;
+ *p = 0;
+ }
- if ((p = Ustrchr(sdata[0], '(')) != NULL)
+ if ((p = Ustrchr(sdata[0], '(')))
{
*p++ = 0;
socket = p;
- while (*p != 0 && *p != ')') p++;
+ while (*p && *p != ')') p++;
*p = 0;
}
- if ((p = Ustrchr(sdata[0], ':')) != NULL)
+ if ((p = Ustrchr(sdata[0], ':')))
{
*p++ = 0;
port = Uatoi(p);
}
- if (Ustrchr(sdata[0], '/') != NULL)
+ if (Ustrchr(sdata[0], '/'))
{
*errmsg = string_sprintf("unexpected slash in MySQL server hostname: %s",
sdata[0]);
mysql_handle = store_get(sizeof(MYSQL));
mysql_init(mysql_handle);
+ mysql_options(mysql_handle, MYSQL_READ_DEFAULT_GROUP, CS group);
if (mysql_real_connect(mysql_handle,
/* host user passwd database */
CS sdata[0], CS sdata[2], CS sdata[3], CS sdata[1],
was expected (this is all explained clearly in the MySQL manual). In this case,
we return the number of rows affected by the command. In this event, we do NOT
want to cache the result; also the whole cache for the handle must be cleaned
-up. Setting do_cache FALSE requests this. */
+up. Setting do_cache zero requests this. */
if ((mysql_result = mysql_use_result(mysql_handle)) == NULL)
{
{
DEBUG(D_lookup) debug_printf("MYSQL: query was not one that returns data\n");
result = string_sprintf("%d", mysql_affected_rows(mysql_handle));
- *do_cache = FALSE;
+ *do_cache = 0;
goto MYSQL_EXIT;
}
*errmsg = string_sprintf("MYSQL: lookup result failed: %s\n",
unsigned long *lengths = mysql_fetch_lengths(mysql_result);
if (result != NULL)
- result = string_cat(result, &ssize, &offset, US"\n", 1);
+ result = string_catn(result, &ssize, &offset, US"\n", 1);
if (num_fields == 1)
{
if (mysql_row_data[0] != NULL) /* NULL value yields nothing */
- result = string_cat(result, &ssize, &offset, US mysql_row_data[0],
+ result = string_catn(result, &ssize, &offset, US mysql_row_data[0],
lengths[0]);
}
if (mysql_result != NULL) mysql_free_result(mysql_result);
-/* Non-NULL result indicates a sucessful result */
+/* Non-NULL result indicates a successful result */
if (result != NULL)
{
static int
mysql_find(void *handle, uschar *filename, const uschar *query, int length,
- uschar **result, uschar **errmsg, BOOL *do_cache)
+ uschar **result, uschar **errmsg, uint *do_cache)
{
return lf_sqlperform(US"MySQL", US"mysql_servers", mysql_servers, query,
result, errmsg, do_cache, perform_mysql_search);