constify

[exim.git] / src / src / lookups / sqlite.c

diff --git a/src/src/lookups/sqlite.c b/src/src/lookups/sqlite.c
index d82df83cb7f78f7e3c278b6484e1f3df67bc4672..cf68b121a79aae42e246e6b34c8855e422554b1c 100644 (file)
--- a/src/src/lookups/sqlite.c
+++ b/src/src/lookups/sqlite.c
@@ -1,19 +1,13 @@
-/* $Cambridge: exim/src/src/lookups/sqlite.c,v 1.4 2007/01/08 10:50:19 ph10 Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2007 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 #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>
 
 
@@ -23,17 +17,16 @@ static void dummy(int x) { dummy(x-1); }
 
 /* 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 ((ret = sqlite3_open(CCS filename, &db)) != 0)
   {
   *errmsg = (void *)sqlite3_errmsg(db);
-  debug_printf("Error opening database: %s\n", *errmsg);
+  debug_printf_indent("Error opening database: %s\n", *errmsg);
   }
 
 sqlite3_busy_timeout(db, 1000 * sqlite_lock_timeout);
@@ -47,61 +40,51 @@ 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);
+    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;
+*(gstring **)arg = res;
 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)
 {
 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, (char **)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;
 
-*result = res.string;
+*result = string_from_gstring(res);
 return OK;
 }
 
@@ -113,7 +96,7 @@ return OK;
 
 /* See local README for interface description. */
 
-void sqlite_close(void *handle)
+static void sqlite_close(void *handle)
 {
 sqlite3_close(handle);
 }
@@ -134,7 +117,7 @@ Arguments:
 Returns:     the processed string or NULL for a bad option
 */
 
-uschar *
+static uschar *
 sqlite_quote(uschar *s, uschar *opt)
 {
 register int c;
@@ -147,7 +130,7 @@ if (opt != NULL) return NULL;     /* No options recognized */
 while ((c = *t++) != 0) if (c == '\'') count++;
 
 if (count == 0) return s;
-t = quoted = store_get(Ustrlen(s) + count + 1);
+t = quoted = store_get(Ustrlen(s) + count + 1, is_tainted(s));
 
 while ((c = *s++) != 0)
   {
@@ -159,6 +142,44 @@ while ((c = *s++) != 0)
 return quoted;
 }
 
-#endif /* LOOKUP_SQLITE */
+
+
+/*************************************************
+*         Version reporting entry point          *
+*************************************************/
+
+/* See local README for interface description. */
+
+#include "../version.h"
+
+void
+sqlite_version_report(FILE *f)
+{
+fprintf(f, "Library version: SQLite: Compile: %s\n"
+           "                         Runtime: %s\n",
+        SQLITE_VERSION, sqlite3_libversion());
+#ifdef DYNLOOKUP
+fprintf(f, "                         Exim version %s\n", EXIM_VERSION_STR);
+#endif
+}
+
+static lookup_info _lookup_info = {
+  US"sqlite",                    /* lookup name */
+  lookup_absfilequery,           /* query-style lookup, starts with file name */
+  sqlite_open,                   /* open function */
+  NULL,                          /* no check function */
+  sqlite_find,                   /* find function */
+  sqlite_close,                  /* close function */
+  NULL,                          /* no tidy function */
+  sqlite_quote,                  /* quoting function */
+  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 */