1/*
2 *  SQLValidDSN.c
3 *
4 *  $Id: SQLValidDSN.c,v 1.7 2006/01/20 15:58:35 source Exp $
5 *
6 *  Validate a DSN name
7 *
8 *  The iODBC driver manager.
9 *
10 *  Copyright (C) 1996-2006 by OpenLink Software <iodbc@openlinksw.com>
11 *  All Rights Reserved.
12 *
13 *  This software is released under the terms of either of the following
14 *  licenses:
15 *
16 *      - GNU Library General Public License (see LICENSE.LGPL)
17 *      - The BSD License (see LICENSE.BSD).
18 *
19 *  Note that the only valid version of the LGPL license as far as this
20 *  project is concerned is the original GNU Library General Public License
21 *  Version 2, dated June 1991.
22 *
23 *  While not mandated by the BSD license, any patches you make to the
24 *  iODBC source code may be contributed back into the iODBC project
25 *  at your discretion. Contributions will benefit the Open Source and
26 *  Data Access community as a whole. Submissions may be made at:
27 *
28 *      http://www.iodbc.org
29 *
30 *
31 *  GNU Library Generic Public License Version 2
32 *  ============================================
33 *  This library is free software; you can redistribute it and/or
34 *  modify it under the terms of the GNU Library General Public
35 *  License as published by the Free Software Foundation; only
36 *  Version 2 of the License dated June 1991.
37 *
38 *  This library is distributed in the hope that it will be useful,
39 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
40 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
41 *  Library General Public License for more details.
42 *
43 *  You should have received a copy of the GNU Library General Public
44 *  License along with this library; if not, write to the Free
45 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
46 *
47 *
48 *  The BSD License
49 *  ===============
50 *  Redistribution and use in source and binary forms, with or without
51 *  modification, are permitted provided that the following conditions
52 *  are met:
53 *
54 *  1. Redistributions of source code must retain the above copyright
55 *     notice, this list of conditions and the following disclaimer.
56 *  2. Redistributions in binary form must reproduce the above copyright
57 *     notice, this list of conditions and the following disclaimer in
58 *     the documentation and/or other materials provided with the
59 *     distribution.
60 *  3. Neither the name of OpenLink Software Inc. nor the names of its
61 *     contributors may be used to endorse or promote products derived
62 *     from this software without specific prior written permission.
63 *
64 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
65 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
66 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
67 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL OPENLINK OR
68 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
69 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
70 *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
71 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
72 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
73 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
74 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
75 */
76
77
78#include <iodbc.h>
79#include <odbcinst.h>
80#include <unicode.h>
81
82#include "iodbc_error.h"
83
84#define INVALID_CHARS	"[]{}(),;?*=!@\\"
85#define INVALID_CHARSW	L"[]{}(),;?*=!@\\"
86
87BOOL
88ValidDSN (LPCSTR lpszDSN)
89{
90  char *currp = (char *) lpszDSN;
91
92  while (*currp)
93    {
94      if (strchr (INVALID_CHARS, *currp))
95	return FALSE;
96      else
97	currp++;
98    }
99
100  return TRUE;
101}
102
103
104BOOL
105ValidDSNW (LPCWSTR lpszDSN)
106{
107  wchar_t *currp = (wchar_t *) lpszDSN;
108
109  while (*currp)
110    {
111      if (wcschr (INVALID_CHARSW, *currp))
112	return FALSE;
113      else
114	currp++;
115    }
116
117  return TRUE;
118}
119
120
121BOOL INSTAPI
122SQLValidDSN (LPCSTR lpszDSN)
123{
124  BOOL retcode = FALSE;
125
126  /* Check dsn */
127  CLEAR_ERROR ();
128  if (!lpszDSN || !STRLEN (lpszDSN) || STRLEN (lpszDSN) >= SQL_MAX_DSN_LENGTH)
129    {
130      PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
131      goto quit;
132    }
133
134  retcode = ValidDSN (lpszDSN);
135
136quit:
137  return retcode;
138}
139
140BOOL INSTAPI
141SQLValidDSNW (LPCWSTR lpszDSN)
142{
143  BOOL retcode = FALSE;
144
145  /* Check dsn */
146  CLEAR_ERROR ();
147  if (!lpszDSN || !WCSLEN (lpszDSN) || WCSLEN (lpszDSN) >= SQL_MAX_DSN_LENGTH)
148    {
149      PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
150      goto quit;
151    }
152
153  retcode = ValidDSNW (lpszDSN);
154
155quit:
156  return retcode;
157}
158