1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
/*
* cook - file construction tool
* Copyright (C) 1999 Peter Miller;
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
*
* MANIFEST: functions to manipulate executable file extensions
*/
#include <exeext.h>
#include <ac/ctype.h>
#include <ac/string.h>
#include <exeext.h>
#include <libdir.h>
static int memcasecmp _((const char *, const char *, size_t));
static int
memcasecmp(s1, s2, n)
const char *s1;
const char *s2;
size_t n;
{
int c1, c2;
while (n > 0)
{
c1 = *s1++;
if (isupper(c1))
c1 = tolower(c1);
c2 = *s2++;
if (isupper(c2))
c1 = tolower(c2);
if (c1 != c2)
return ((unsigned char)c1 - (unsigned char)c2);
--n;
}
return 0;
}
static int look_for_suffix _((const char *, const char *));
static int
look_for_suffix(stem, suffix)
const char *stem;
const char *suffix;
{
size_t main_len;
size_t suffix_len;
size_t idx;
main_len = strlen(stem);
suffix_len = strlen(suffix);
if (main_len < suffix_len)
return -1;
idx = main_len - suffix_len;
if (0 != memcasecmp(stem + idx, suffix, suffix_len))
return -1;
return idx;
}
const char *
exeext_nth(n)
int n;
{
switch (n)
{
case 0: return executable_extension_get();
#if defined(__CYGWIN__) || defined(__CYGWIN32__) || defined(__NUTC__)
case 1: return ".bat";
case 2: return ".cmd";
case 3: return ".com";
case 4: return ".exe";
#endif
}
return 0;
}
int
exeext(s)
const char *s;
{
int n;
const char *suffix;
int result;
for (n = 0; ; ++n)
{
suffix = exeext_nth(n);
if (!suffix || !*suffix)
return -1;
result = look_for_suffix(s, suffix);
if (result >= 0)
return result;
}
}
|