1 /*
2 * Copyright (C) 1999 Ross Combs (rocombs@cs.nmsu.edu)
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18 #include "common/setup_before.h"
19 #ifndef HAVE_STRCASECMP
20
21 #include <ctype.h>
22 #ifdef HAVE_STRING_H
23 # include <string.h>
24 #else
25 # ifdef HAVE_STRINGS_H
26 # include <strings.h>
27 # endif
28 #endif
29 #include "strcasecmp.h"
30 #include "common/setup_after.h"
31
32
strcasecmp(char const * str1,char const * str2)33 extern int strcasecmp(char const * str1, char const * str2)
34 {
35 unsigned int i;
36 int a;
37 int b;
38
39 if (!str1 || !str2)
40 return -1;
41
42 /* some versions of tolower() break when given already lowercase characters */
43 for (i=0; str1[i]!='\0' && str2[i]!='\0'; i++)
44 {
45 if (isupper((int)str1[i]))
46 a = (int)tolower((int)str1[i]);
47 else
48 a = (int)str1[i];
49
50 if (isupper((int)str2[i]))
51 b = (int)tolower((int)str2[i]);
52 else
53 b = (int)str2[i];
54
55 if (a<b)
56 return -1;
57 if (a>b)
58 return +1;
59 }
60
61 if (str1[i]!='\0')
62 return -1;
63 if (str2[i]!='\0')
64 return +1;
65 return 0;
66 }
67
68 #else
69 typedef int filenotempty; /* make ISO standard happy */
70 #endif
71