ignorecase.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
/** \file ignorecase.c */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "physfs.h"
#include "ignorecase.h"
/**
* Please see ignorecase.h for details.
*
* License: this code is public domain. I make no warranty that it is useful,
* correct, harmless, or environmentally safe.
*
* This particular file may be used however you like, including copying it
* verbatim into a closed-source project, exploiting it commercially, and
* removing any trace of my name from the source (although I hope you won't
* do that). I welcome enhancements and corrections to this file, but I do
21
22
* not require you to send me patches if you make changes. This code has
* NO WARRANTY.
23
*
24
* Unless otherwise stated, the rest of PhysicsFS falls under the zlib license.
25
* Please see LICENSE.txt in the root of the source tree.
26
27
28
29
30
*
* \author Ryan C. Gordon.
*/
/* I'm not screwing around with stricmp vs. strcasecmp... */
31
/* !!! FIXME: this will NOT work with UTF-8 strings in physfs2.0 */
32
33
34
35
36
37
38
39
static int caseInsensitiveStringCompare(const char *x, const char *y)
{
int ux, uy;
do
{
ux = toupper((int) *x);
uy = toupper((int) *y);
if (ux != uy)
40
return ((ux > uy) ? 1 : -1);
41
42
43
44
x++;
y++;
} while ((ux) && (uy));
46
47
48
49
50
51
52
53
54
55
} /* caseInsensitiveStringCompare */
static int locateOneElement(char *buf)
{
char *ptr;
char **rc;
char **i;
if (PHYSFS_exists(buf))
56
return 1; /* quick rejection: exists in current case. */
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
ptr = strrchr(buf, '/'); /* find entry at end of path. */
if (ptr == NULL)
{
rc = PHYSFS_enumerateFiles("/");
ptr = buf;
} /* if */
else
{
*ptr = '\0';
rc = PHYSFS_enumerateFiles(buf);
*ptr = '/';
ptr++; /* point past dirsep to entry itself. */
} /* else */
for (i = rc; *i != NULL; i++)
{
if (caseInsensitiveStringCompare(*i, ptr) == 0)
{
strcpy(ptr, *i); /* found a match. Overwrite with this case. */
PHYSFS_freeList(rc);
79
80
81
82
83
} /* if */
} /* for */
/* no match at all... */
PHYSFS_freeList(rc);
85
86
87
88
89
90
91
92
93
94
95
} /* locateOneElement */
int PHYSFSEXT_locateCorrectCase(char *buf)
{
int rc;
char *ptr;
while (*buf == '/') /* skip any '/' at start of string... */
buf++;
96
ptr = buf;
97
if (*ptr == '\0')
98
return 0; /* Uh...I guess that's success. */
100
while ( (ptr = strchr(ptr + 1, '/')) != NULL )
101
102
103
104
105
{
*ptr = '\0'; /* block this path section off */
rc = locateOneElement(buf);
*ptr = '/'; /* restore path separator */
if (!rc)
106
return -2; /* missing element in path. */
107
108
109
} /* while */
/* check final element... */
110
return locateOneElement(buf) ? 0 : -1;
111
112
113
114
115
116
117
118
} /* PHYSFSEXT_locateCorrectCase */
#ifdef TEST_PHYSFSEXT_LOCATECORRECTCASE
int main(int argc, char **argv)
{
int rc;
char buf[128];
119
PHYSFS_File *f;
120
121
122
123
if (!PHYSFS_init(argv[0]))
{
fprintf(stderr, "PHYSFS_init(): %s\n", PHYSFS_getLastError());
125
126
127
128
129
130
} /* if */
if (!PHYSFS_addToSearchPath(".", 1))
{
fprintf(stderr, "PHYSFS_addToSearchPath(): %s\n", PHYSFS_getLastError());
PHYSFS_deinit();
132
133
134
135
136
137
} /* if */
if (!PHYSFS_setWriteDir("."))
{
fprintf(stderr, "PHYSFS_setWriteDir(): %s\n", PHYSFS_getLastError());
PHYSFS_deinit();
139
140
141
142
143
144
} /* if */
if (!PHYSFS_mkdir("/a/b/c"))
{
fprintf(stderr, "PHYSFS_mkdir(): %s\n", PHYSFS_getLastError());
PHYSFS_deinit();
146
147
148
149
150
151
} /* if */
if (!PHYSFS_mkdir("/a/b/C"))
{
fprintf(stderr, "PHYSFS_mkdir(): %s\n", PHYSFS_getLastError());
PHYSFS_deinit();
153
154
155
156
157
158
159
160
} /* if */
f = PHYSFS_openWrite("/a/b/c/x.txt");
PHYSFS_close(f);
if (f == NULL)
{
fprintf(stderr, "PHYSFS_openWrite(): %s\n", PHYSFS_getLastError());
PHYSFS_deinit();
162
163
164
165
166
167
168
169
} /* if */
f = PHYSFS_openWrite("/a/b/C/X.txt");
PHYSFS_close(f);
if (f == NULL)
{
fprintf(stderr, "PHYSFS_openWrite(): %s\n", PHYSFS_getLastError());
PHYSFS_deinit();
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
} /* if */
strcpy(buf, "/a/b/c/x.txt");
rc = PHYSFSEXT_locateCorrectCase(buf);
if ((rc != 0) || (strcmp(buf, "/a/b/c/x.txt") != 0))
printf("test 1 failed\n");
strcpy(buf, "/a/B/c/x.txt");
rc = PHYSFSEXT_locateCorrectCase(buf);
if ((rc != 0) || (strcmp(buf, "/a/b/c/x.txt") != 0))
printf("test 2 failed\n");
strcpy(buf, "/a/b/C/x.txt");
rc = PHYSFSEXT_locateCorrectCase(buf);
if ((rc != 0) || (strcmp(buf, "/a/b/C/X.txt") != 0))
printf("test 3 failed\n");
strcpy(buf, "/a/b/c/X.txt");
rc = PHYSFSEXT_locateCorrectCase(buf);
if ((rc != 0) || (strcmp(buf, "/a/b/c/x.txt") != 0))
printf("test 4 failed\n");
strcpy(buf, "/a/b/c/z.txt");
rc = PHYSFSEXT_locateCorrectCase(buf);
if ((rc != -1) || (strcmp(buf, "/a/b/c/z.txt") != 0))
printf("test 5 failed\n");
strcpy(buf, "/A/B/Z/z.txt");
rc = PHYSFSEXT_locateCorrectCase(buf);
if ((rc != -2) || (strcmp(buf, "/a/b/Z/z.txt") != 0))
printf("test 6 failed\n");
printf("Testing completed.\n");
printf(" If no errors were reported, you're good to go.\n");
PHYSFS_delete("/a/b/c/x.txt");
PHYSFS_delete("/a/b/C/X.txt");
PHYSFS_delete("/a/b/c");
PHYSFS_delete("/a/b/C");
PHYSFS_delete("/a/b");
PHYSFS_delete("/a");
PHYSFS_deinit();
214
215
216
217
} /* main */
#endif
/* end of ignorecase.c ... */