bes  Updated for version 3.20.6
BESScrub.cc
1 // BESScrub.cc
2 
3 // This file is part of bes, A C++ back-end server implementation framework
4 // for the OPeNDAP Data Access Protocol.
5 
6 // Copyright (c) 2004-2009 University Corporation for Atmospheric Research
7 // Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu>
8 //
9 // This library is free software; you can redistribute it and/or
10 // modify it under the terms of the GNU Lesser General Public
11 // License as published by the Free Software Foundation; either
12 // version 2.1 of the License, or (at your option) any later version.
13 //
14 // This library is distributed in the hope that it will be useful,
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 // Lesser General Public License for more details.
18 //
19 // You should have received a copy of the GNU Lesser General Public
20 // License along with this library; if not, write to the Free Software
21 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 //
23 // You can contact University Corporation for Atmospheric Research at
24 // 3080 Center Green Drive, Boulder, CO 80301
25 
26 // (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005
27 // Please read the full copyright statement in the file COPYRIGHT_UCAR.
28 //
29 // Authors:
30 // pwest Patrick West <pwest@ucar.edu>
31 // jgarcia Jose Garcia <jgarcia@ucar.edu>
32 
33 #include "config.h"
34 
35 #include <limits.h>
36 
37 #include "BESScrub.h"
38 #include "BESRegex.h"
39 
40 using std::string;
41 
44 
53 bool
54 BESScrub::command_line_arg_ok( const string &arg )
55 {
56  if( arg.length() > 255 )
57  return false ;
58 
59  return true ;
60 }
61 
67 bool
68 BESScrub::size_ok(unsigned int sz, unsigned int nelem)
69 {
70  return (sz > 0 && nelem < UINT_MAX / sz);
71 }
72 
89 bool
90 BESScrub::pathname_ok(const string &path, bool strict)
91 {
92  if (path.length() > 255)
93  return false;
94 
95  BESRegex name("[[:alpha:][:digit:]_./-]+");
96  if (!strict)
97  name = "[:print:]+";
98 
99  string::size_type len = path.length() ;
100  int ret = name.match( path.c_str(), len ) ;
101  if( ret != static_cast<int>(len) )
102  return false ;
103  return true ;
104 }
105 
107 
BESScrub::pathname_ok
static bool pathname_ok(const std::string &path, bool strict)
Does the string name a potentailly valid pathname? Test the given pathname to verfiy that it is a val...
Definition: BESScrub.cc:90
BESScrub::size_ok
static bool size_ok(unsigned int sz, unsigned int nelem)
sanitize the size of an array. Test for integer overflow when dynamically allocating an array.
Definition: BESScrub.cc:68
BESScrub::command_line_arg_ok
static bool command_line_arg_ok(const std::string &arg)
sanitize command line arguments
Definition: BESScrub.cc:54
BESRegex
Definition: BESRegex.h:41
BESRegex::match
int match(const char *s, int len, int pos=0)
Does the pattern match.
Definition: BESRegex.cc:105