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84 lines
1.8 KiB
84 lines
1.8 KiB
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
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//
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// Use of this source code is governed by an MIT-style
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// license that can be found in the LICENSE file.
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// +build !sqlite_omit_load_extension
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package sqlite3
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/*
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#ifndef USE_LIBSQLITE3
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#include <sqlite3-binding.h>
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#else
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#include <sqlite3.h>
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#endif
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#include <stdlib.h>
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*/
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import "C"
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import (
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"errors"
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"unsafe"
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)
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func (c *SQLiteConn) loadExtensions(extensions []string) error {
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rv := C.sqlite3_enable_load_extension(c.db, 1)
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if rv != C.SQLITE_OK {
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return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
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}
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for _, extension := range extensions {
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if err := c.loadExtension(extension, nil); err != nil {
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C.sqlite3_enable_load_extension(c.db, 0)
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return err
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}
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}
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rv = C.sqlite3_enable_load_extension(c.db, 0)
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if rv != C.SQLITE_OK {
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return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
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}
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return nil
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}
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// LoadExtension load the sqlite3 extension.
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func (c *SQLiteConn) LoadExtension(lib string, entry string) error {
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rv := C.sqlite3_enable_load_extension(c.db, 1)
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if rv != C.SQLITE_OK {
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return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
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}
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if err := c.loadExtension(lib, &entry); err != nil {
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C.sqlite3_enable_load_extension(c.db, 0)
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return err
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}
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rv = C.sqlite3_enable_load_extension(c.db, 0)
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if rv != C.SQLITE_OK {
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return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
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}
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return nil
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}
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func (c *SQLiteConn) loadExtension(lib string, entry *string) error {
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clib := C.CString(lib)
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defer C.free(unsafe.Pointer(clib))
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var centry *C.char
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if entry != nil {
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centry = C.CString(*entry)
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defer C.free(unsafe.Pointer(centry))
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}
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var errMsg *C.char
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defer C.sqlite3_free(unsafe.Pointer(errMsg))
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rv := C.sqlite3_load_extension(c.db, clib, centry, &errMsg)
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if rv != C.SQLITE_OK {
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return errors.New(C.GoString(errMsg))
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}
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return nil
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}
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