1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
6 /* See the file NOTICE for conditions of use and distribution. */
9 #include "lf_functions.h"
14 /*************************************************
16 *************************************************/
18 /* See local README for interface description. */
21 sqlite_open(const uschar * filename, uschar ** errmsg)
26 if (!filename || !*filename) filename = sqlite_dbfile;
28 *errmsg = US"absolute file name expected for \"sqlite\" lookup";
29 else if ((ret = sqlite3_open(CCS filename, &db)) != 0)
31 *errmsg = (void *)sqlite3_errmsg(db);
32 DEBUG(D_lookup) debug_printf_indent("Error opening database: %s\n", *errmsg);
35 sqlite3_busy_timeout(db, 1000 * sqlite_lock_timeout);
40 /*************************************************
42 *************************************************/
44 /* See local README for interface description. */
47 sqlite_callback(void *arg, int argc, char **argv, char **azColName)
49 gstring * res = *(gstring **)arg;
51 /* For second and subsequent results, insert \n */
54 res = string_catn(res, US"\n", 1);
58 /* For multiple fields, include the field name too */
59 for (int i = 0; i < argc; i++)
61 uschar *value = US((argv[i] != NULL)? argv[i]:"<NULL>");
62 res = lf_quote(US azColName[i], value, Ustrlen(value), res);
67 res = string_cat(res, argv[0] ? US argv[0] : US "<NULL>");
69 *(gstring **)arg = res;
75 sqlite_find(void * handle, const uschar * filename, const uschar * query,
76 int length, uschar ** result, uschar ** errmsg, uint * do_cache)
81 ret = sqlite3_exec(handle, CS query, sqlite_callback, &res, (char **)errmsg);
84 debug_printf_indent("sqlite3_exec failed: %s\n", *errmsg);
88 if (!res) *do_cache = 0;
90 *result = string_from_gstring(res);
96 /*************************************************
98 *************************************************/
100 /* See local README for interface description. */
102 static void sqlite_close(void *handle)
104 sqlite3_close(handle);
109 /*************************************************
110 * Quote entry point *
111 *************************************************/
113 /* From what I have found so far, the only character that needs to be quoted
114 for sqlite is the single quote, and it is quoted by doubling.
117 s the string to be quoted
118 opt additional option text or NULL if none
120 Returns: the processed string or NULL for a bad option
124 sqlite_quote(uschar *s, uschar *opt)
131 if (opt != NULL) return NULL; /* No options recognized */
133 while ((c = *t++) != 0) if (c == '\'') count++;
135 if (count == 0) return s;
136 t = quoted = store_get(Ustrlen(s) + count + 1, is_tainted(s));
138 while ((c = *s++) != 0)
140 if (c == '\'') *t++ = '\'';
150 /*************************************************
151 * Version reporting entry point *
152 *************************************************/
154 /* See local README for interface description. */
156 #include "../version.h"
159 sqlite_version_report(FILE *f)
161 fprintf(f, "Library version: SQLite: Compile: %s\n"
163 SQLITE_VERSION, sqlite3_libversion());
165 fprintf(f, " Exim version %s\n", EXIM_VERSION_STR);
169 static lookup_info _lookup_info = {
170 US"sqlite", /* lookup name */
171 lookup_absfilequery, /* query-style lookup, starts with file name */
172 sqlite_open, /* open function */
173 NULL, /* no check function */
174 sqlite_find, /* find function */
175 sqlite_close, /* close function */
176 NULL, /* no tidy function */
177 sqlite_quote, /* quoting function */
178 sqlite_version_report /* version reporting */
182 #define sqlite_lookup_module_info _lookup_module_info
185 static lookup_info *_lookup_list[] = { &_lookup_info };
186 lookup_module_info sqlite_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
188 /* End of lookups/sqlite.c */