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Add the load_extension() SQL function. (CVS 3269)

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FossilOrigin-Name: e08e2ddafe909ae6073ec56dfa3fdca23e36bf2e
This commit is contained in:
drh
2006-06-17 14:12:47 +00:00
parent 428397c143
commit fdb83b2fa1
5 changed files with 93 additions and 16 deletions
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26
src/func.c
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@@ -16,7 +16,7 @@
** sqliteRegisterBuildinFunctions() found at the bottom of the file.
** All other code has file scope.
**
** $Id: func.c,v 1.130 2006/06/13 19:26:11 drh Exp $
** $Id: func.c,v 1.131 2006/06/17 14:12:48 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
@@ -676,6 +676,26 @@ static void soundexFunc(sqlite3_context *context, int argc, sqlite3_value **argv
}
#endif
#ifndef SQLITE_OMIT_LOAD_EXTENSION
/*
** A function that loads a shared-library extension then returns NULL.
*/
static void loadExt(sqlite3_context *context, int argc, sqlite3_value **argv){
const char *zFile = sqlite3_value_text(argv[0]);
const char *zProc = 0;
sqlite3 *db = sqlite3_user_data(context);
char *zErrMsg = 0;
if( argc==2 ){
zProc = sqlite3_value_text(argv[1]);
}
if( sqlite3_load_extension(db, zFile, zProc, &zErrMsg) ){
sqlite3_result_error(context, zErrMsg, -1);
sqlite3_free(zErrMsg);
}
}
#endif
#ifdef SQLITE_TEST
/*
** This function generates a string of random characters. Used for
@@ -1021,6 +1041,10 @@ void sqlite3RegisterBuiltinFunctions(sqlite3 *db){
#ifdef SQLITE_SOUNDEX
{ "soundex", 1, 0, SQLITE_UTF8, 0, soundexFunc},
#endif
#ifndef SQLITE_OMIT_LOAD_EXTENSION
{ "load_extension", 1, 1, SQLITE_UTF8, 0, loadExt },
{ "load_extension", 2, 1, SQLITE_UTF8, 0, loadExt },
#endif
#ifdef SQLITE_TEST
{ "randstr", 2, 0, SQLITE_UTF8, 0, randStr },
{ "test_destructor", 1, 1, SQLITE_UTF8, 0, test_destructor},