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Side by Side Diff: third_party/fontconfig/config/windows/dirent.c

Issue 20220002: Add libpoppler PDF rasterizer (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: Poppler gypfile simplification Created 7 years, 4 months ago
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1 /*
2
3 Implementation of POSIX directory browsing functions and types for Win32.
4
5 Author: Kevlin Henney (kevlin@acm.org, kevlin@curbralan.com)
6 History: Created March 1997. Updated June 2003.
7 Rights: See end of file.
8
9 */
10
11 #include <dirent.h>
12 #include <errno.h>
13 #include <io.h> /* _findfirst and _findnext set errno iff they return -1 */
14 #include <stdlib.h>
15 #include <string.h>
16
17 #ifdef __cplusplus
18 extern "C"
19 {
20 #endif
21
22 struct DIR
23 {
24 long handle; /* -1 for failed rewind */
25 struct _finddata_t info;
26 struct dirent result; /* d_name null iff first time */
27 char *name; /* null-terminated char string */
28 };
29
30 DIR *opendir(const char *name)
31 {
32 DIR *dir = 0;
33
34 if(name && name[0])
35 {
36 size_t base_length = strlen(name);
37 const char *all = /* search pattern must end with suitable wildcard */
38 strchr("/\\", name[base_length - 1]) ? "*" : "/*";
39
40 if((dir = (DIR *) malloc(sizeof *dir)) != 0 &&
41 (dir->name = (char *) malloc(base_length + strlen(all) + 1)) != 0)
42 {
43 strcat(strcpy(dir->name, name), all);
44
45 if((dir->handle = (long) _findfirst(dir->name, &dir->info)) != -1)
46 {
47 dir->result.d_name = 0;
48 }
49 else /* rollback */
50 {
51 free(dir->name);
52 free(dir);
53 dir = 0;
54 }
55 }
56 else /* rollback */
57 {
58 free(dir);
59 dir = 0;
60 errno = ENOMEM;
61 }
62 }
63 else
64 {
65 errno = EINVAL;
66 }
67
68 return dir;
69 }
70
71 int closedir(DIR *dir)
72 {
73 int result = -1;
74
75 if(dir)
76 {
77 if(dir->handle != -1)
78 {
79 result = _findclose(dir->handle);
80 }
81
82 free(dir->name);
83 free(dir);
84 }
85
86 if(result == -1) /* map all errors to EBADF */
87 {
88 errno = EBADF;
89 }
90
91 return result;
92 }
93
94 struct dirent *readdir(DIR *dir)
95 {
96 struct dirent *result = 0;
97
98 if(dir && dir->handle != -1)
99 {
100 if(!dir->result.d_name || _findnext(dir->handle, &dir->info) != -1)
101 {
102 result = &dir->result;
103 result->d_name = dir->info.name;
104 }
105 }
106 else
107 {
108 errno = EBADF;
109 }
110
111 return result;
112 }
113
114 void rewinddir(DIR *dir)
115 {
116 if(dir && dir->handle != -1)
117 {
118 _findclose(dir->handle);
119 dir->handle = (long) _findfirst(dir->name, &dir->info);
120 dir->result.d_name = 0;
121 }
122 else
123 {
124 errno = EBADF;
125 }
126 }
127
128 #ifdef __cplusplus
129 }
130 #endif
131
132 /*
133
134 Copyright Kevlin Henney, 1997, 2003. All rights reserved.
135
136 Permission to use, copy, modify, and distribute this software and its
137 documentation for any purpose is hereby granted without fee, provided
138 that this copyright and permissions notice appear in all copies and
139 derivatives.
140
141 This software is supplied "as is" without express or implied warranty.
142
143 But that said, if there are any problems please get in touch.
144
145 */
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