1  /*
 2   * Copyright (c) 2011-2012,2014 Apple Inc. All Rights Reserved.
 3   *
 4   * @APPLE_LICENSE_HEADER_START@
 5   * 
 6   * This file contains Original Code and/or Modifications of Original Code
 7   * as defined in and that are subject to the Apple Public Source License
 8   * Version 2.0 (the 'License'). You may not use this file except in
 9   * compliance with the License. Please obtain a copy of the License at
10   * http://www.opensource.apple.com/apsl/ and read it before using this
11   * file.
12   * 
13   * The Original Code and all software distributed under the License are
14   * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15   * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16   * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17   * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18   * Please see the License for the specific language governing rights and
19   * limitations under the License.
20   * 
21   * @APPLE_LICENSE_HEADER_END@
22   */
23  
24  
25  /*
26   * sqlutils.h - some wrapper for sql3lite
27   */
28  #ifndef _SECURITY_UTILITIES_SQLUTILS_H_
29  #define _SECURITY_UTILITIES_SQLUTILS_H_
30  
31  #include <sqlite3.h>
32  
33  /* Those are just wrapper around the sqlite3 functions, but they have size_t for some len parameters,
34     and checks for overflow before casting to int */
35  static inline int sqlite3_bind_blob_wrapper(sqlite3_stmt* pStmt, int i, const void* zData, size_t n, void(*xDel)(void*))
36  {
37      if(n>INT_MAX) return SQLITE_TOOBIG;
38      return sqlite3_bind_blob(pStmt, i, zData, (int)n, xDel);
39  }
40  
41  static inline int sqlite3_bind_text_wrapper(sqlite3_stmt* pStmt, int i, const void* zData, size_t n, void(*xDel)(void*))
42  {
43      if(n>INT_MAX) return SQLITE_TOOBIG;
44      return sqlite3_bind_text(pStmt, i, zData, (int)n, xDel);
45  }
46  
47  static inline int sqlite3_prepare_wrapper(sqlite3 *db, const char *zSql, size_t nByte, sqlite3_stmt **ppStmt, const char **pzTail)
48  {
49      if(nByte>INT_MAX) return SQLITE_TOOBIG;
50      return sqlite3_prepare(db, zSql, (int)nByte, ppStmt, pzTail);
51  }
52  
53  #endif