-/* $Cambridge: exim/src/src/lookups/sqlite.c,v 1.3 2006/02/07 11:19:01 ph10 Exp $ */
-
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2006 */
+/* Copyright (c) The Exim Maintainers 2020 - 2022 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
/* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
#include "../exim.h"
#include "lf_functions.h"
-#include "sqlite.h"
-#ifndef LOOKUP_SQLITE
-static void dummy(int x) { dummy(x-1); }
-#else
#include <sqlite3.h>
/* See local README for interface description. */
-void *
-sqlite_open(uschar *filename, uschar **errmsg)
+static void *
+sqlite_open(const uschar * filename, uschar ** errmsg)
{
sqlite3 *db = NULL;
int ret;
-ret = sqlite3_open((char *)filename, &db);
-if (ret != 0)
+if (!filename || !*filename)
+ {
+ DEBUG(D_lookup) debug_printf_indent("Using sqlite_dbfile: %s\n", sqlite_dbfile);
+ filename = sqlite_dbfile;
+ }
+if (!filename || *filename != '/')
+ *errmsg = US"absolute file name expected for \"sqlite\" lookup";
+else if ((ret = sqlite3_open(CCS filename, &db)) != 0)
{
*errmsg = (void *)sqlite3_errmsg(db);
- debug_printf("Error opening database: %s\n", *errmsg);
+ sqlite3_close(db);
+ db = NULL;
+ DEBUG(D_lookup) debug_printf_indent("Error opening database: %s\n", *errmsg);
}
-sqlite3_busy_timeout(db, 1000 * sqlite_lock_timeout);
+if (db)
+ sqlite3_busy_timeout(db, 1000 * sqlite_lock_timeout);
return db;
}
/* See local README for interface description. */
-struct strbuf {
- uschar *string;
- int size;
- int len;
-};
-
-static int sqlite_callback(void *arg, int argc, char **argv, char **azColName)
+static int
+sqlite_callback(void *arg, int argc, char **argv, char **azColName)
{
-struct strbuf *res = arg;
-int i;
+gstring * res = *(gstring **)arg;
/* For second and subsequent results, insert \n */
-if (res->string != NULL)
- res->string = string_cat(res->string, &res->size, &res->len, US"\n", 1);
+if (res)
+ res = string_catn(res, US"\n", 1);
if (argc > 1)
{
/* For multiple fields, include the field name too */
- for (i = 0; i < argc; i++)
+ for (int i = 0; i < argc; i++)
{
- uschar *value = US((argv[i] != NULL)? argv[i]:"<NULL>");
- res->string = lf_quote(US azColName[i], value, Ustrlen(value), res->string,
- &res->size, &res->len);
+ uschar * value = US(argv[i] ? argv[i] : "<NULL>");
+ res = lf_quote(US azColName[i], value, Ustrlen(value), res);
}
}
else
- {
- res->string = string_append(res->string, &res->size, &res->len, 1,
- (argv[0] != NULL)? argv[0]:"<NULL>");
- }
+ res = string_cat(res, argv[0] ? US argv[0] : US "<NULL>");
-res->string[res->len] = 0;
+/* always return a non-null gstring, even for a zero-length string result */
+*(gstring **)arg = res ? res : string_get(1);
return 0;
}
-int
-sqlite_find(void *handle, uschar *filename, uschar *query, int length,
- uschar **result, uschar **errmsg, BOOL *do_cache)
+static int
+sqlite_find(void * handle, const uschar * filename, const uschar * query,
+ int length, uschar ** result, uschar ** errmsg, uint * do_cache,
+ const uschar * opts)
{
int ret;
-struct strbuf res = { NULL, 0, 0 };
+gstring * res = NULL;
-ret = sqlite3_exec(handle, (char *)query, sqlite_callback, &res, (char **)errmsg);
+ret = sqlite3_exec(handle, CS query, sqlite_callback, &res, CSS errmsg);
if (ret != SQLITE_OK)
{
- debug_printf("sqlite3_exec failed: %s\n", *errmsg);
+ debug_printf_indent("sqlite3_exec failed: %s\n", *errmsg);
return FAIL;
}
-if (res.string == NULL) *do_cache = FALSE;
+if (!res) *do_cache = 0; /* on fail, wipe cache */
-*result = res.string;
+*result = string_from_gstring(res);
return OK;
}
/* See local README for interface description. */
-void sqlite_close(void *handle)
+static void sqlite_close(void *handle)
{
sqlite3_close(handle);
}
Arguments:
s the string to be quoted
opt additional option text or NULL if none
+ idx lookup type index
Returns: the processed string or NULL for a bad option
*/
-uschar *
-sqlite_quote(uschar *s, uschar *opt)
+static uschar *
+sqlite_quote(uschar * s, uschar * opt, unsigned idx)
{
-register int c;
-int count = 0;
-uschar *t = s;
-uschar *quoted;
+int c, count = 0;
+uschar * t = s, * quoted;
-if (opt != NULL) return NULL; /* No options recognized */
+if (opt) return NULL; /* No options recognized */
-while ((c = *t++) != 0) if (c == '\'') count++;
+while ((c = *t++)) if (c == '\'') count++;
+count += t - s;
-if (count == 0) return s;
-t = quoted = store_get(Ustrlen(s) + count + 1);
+t = quoted = store_get_quoted(count + 1, s, idx);
-while ((c = *s++) != 0)
+while ((c = *s++))
{
if (c == '\'') *t++ = '\'';
*t++ = c;
return quoted;
}
-#endif /* LOOKUP_SQLITE */
+
+
+/*************************************************
+* Version reporting entry point *
+*************************************************/
+
+/* See local README for interface description. */
+
+#include "../version.h"
+
+gstring *
+sqlite_version_report(gstring * g)
+{
+g = string_fmt_append(g,
+ "Library version: SQLite: Compile: %s\n"
+ " Runtime: %s\n",
+ SQLITE_VERSION, sqlite3_libversion());
+#ifdef DYNLOOKUP
+g = string_fmt_append(g,
+ " Exim version %s\n", EXIM_VERSION_STR);
+#endif
+return g;
+}
+
+static lookup_info _lookup_info = {
+ .name = US"sqlite", /* lookup name */
+ .type = lookup_absfilequery, /* query-style lookup, starts with file name */
+ .open = sqlite_open, /* open function */
+ .check = NULL, /* no check function */
+ .find = sqlite_find, /* find function */
+ .close = sqlite_close, /* close function */
+ .tidy = NULL, /* no tidy function */
+ .quote = sqlite_quote, /* quoting function */
+ .version_report = sqlite_version_report /* version reporting */
+};
+
+#ifdef DYNLOOKUP
+#define sqlite_lookup_module_info _lookup_module_info
+#endif
+
+static lookup_info *_lookup_list[] = { &_lookup_info };
+lookup_module_info sqlite_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
/* End of lookups/sqlite.c */
git://git.exim.org / exim.git / blobdiff