diff options
Diffstat (limited to 'apps/plugins/xworld/file.c')
-rw-r--r-- | apps/plugins/xworld/file.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/apps/plugins/xworld/file.c b/apps/plugins/xworld/file.c new file mode 100644 index 0000000000..8353544ef5 --- /dev/null +++ b/apps/plugins/xworld/file.c | |||
@@ -0,0 +1,172 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2014 Franklin Wei, Benjamin Brown | ||
11 | * Copyright (C) 2004 Gregory Montoir | ||
12 | * | ||
13 | * This program is free software; you can redistribute it and/or | ||
14 | * modify it under the terms of the GNU General Public License | ||
15 | * as published by the Free Software Foundation; either version 2 | ||
16 | * of the License, or (at your option) any later version. | ||
17 | * | ||
18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
19 | * KIND, either express or implied. | ||
20 | * | ||
21 | ***************************************************************************/ | ||
22 | |||
23 | #include "plugin.h" | ||
24 | #include "file.h" | ||
25 | |||
26 | void file_create(struct File* f, bool gzipped) { | ||
27 | f->gzipped = gzipped; | ||
28 | f->fd = -1; | ||
29 | f->ioErr = false; | ||
30 | } | ||
31 | |||
32 | bool file_open(struct File* f, const char *filename, const char *directory, const char *mode) { | ||
33 | char buf[512]; | ||
34 | rb->snprintf(buf, 512, "%s/%s", directory, filename); | ||
35 | char *p = buf + rb->strlen(directory) + 1; | ||
36 | string_lower(p); | ||
37 | |||
38 | int flags = 0; | ||
39 | for(int i = 0; mode[i]; ++i) | ||
40 | { | ||
41 | switch(mode[i]) | ||
42 | { | ||
43 | case 'w': | ||
44 | flags |= O_WRONLY | O_CREAT | O_TRUNC; | ||
45 | break; | ||
46 | case 'r': | ||
47 | flags |= O_RDONLY; | ||
48 | break; | ||
49 | default: | ||
50 | break; | ||
51 | } | ||
52 | } | ||
53 | f->fd = -1; | ||
54 | debug(DBG_FILE, "trying %s first", buf); | ||
55 | f->fd = rb->open(buf, flags, 0666); | ||
56 | if (f->fd < 0) { // let's try uppercase | ||
57 | string_upper(p); | ||
58 | debug(DBG_FILE, "now trying %s uppercase", buf); | ||
59 | f->fd = rb->open(buf, flags, 0666); | ||
60 | } | ||
61 | if(f->fd > 0) | ||
62 | return true; | ||
63 | else | ||
64 | return false; | ||
65 | } | ||
66 | |||
67 | void file_close(struct File* f) { | ||
68 | if(f->gzipped) | ||
69 | { | ||
70 | } | ||
71 | else | ||
72 | { | ||
73 | rb->close(f->fd); | ||
74 | } | ||
75 | } | ||
76 | |||
77 | bool file_ioErr(struct File* f) { | ||
78 | return f->ioErr; | ||
79 | } | ||
80 | |||
81 | void file_seek(struct File* f, int32_t off) { | ||
82 | if(f->gzipped) | ||
83 | { | ||
84 | } | ||
85 | else | ||
86 | { | ||
87 | rb->lseek(f->fd, off, SEEK_SET); | ||
88 | } | ||
89 | } | ||
90 | int file_read(struct File* f, void *ptr, uint32_t size) { | ||
91 | if(f->gzipped) | ||
92 | { | ||
93 | return -1; | ||
94 | } | ||
95 | else | ||
96 | { | ||
97 | unsigned int rc = rb->read(f->fd, ptr, size); | ||
98 | if(rc != size) | ||
99 | f->ioErr = true; | ||
100 | return rc; | ||
101 | } | ||
102 | } | ||
103 | uint8_t file_readByte(struct File* f) { | ||
104 | uint8_t b; | ||
105 | if(f->gzipped) | ||
106 | { | ||
107 | b = 0xff; | ||
108 | } | ||
109 | else | ||
110 | { | ||
111 | if(rb->read(f->fd, &b, 1) != 1) | ||
112 | { | ||
113 | f->ioErr = true; | ||
114 | debug(DBG_FILE, "file read failed"); | ||
115 | } | ||
116 | } | ||
117 | return b; | ||
118 | } | ||
119 | |||
120 | uint16_t file_readUint16BE(struct File* f) { | ||
121 | uint8_t hi = file_readByte(f); | ||
122 | uint8_t lo = file_readByte(f); | ||
123 | return (hi << 8) | lo; | ||
124 | } | ||
125 | |||
126 | uint32_t file_readUint32BE(struct File* f) { | ||
127 | uint16_t hi = file_readUint16BE(f); | ||
128 | uint16_t lo = file_readUint16BE(f); | ||
129 | return (hi << 16) | lo; | ||
130 | } | ||
131 | |||
132 | int file_write(struct File* f, void *ptr, uint32_t size) { | ||
133 | if(f->gzipped) | ||
134 | { | ||
135 | return 0; | ||
136 | } | ||
137 | else | ||
138 | { | ||
139 | return rb->write(f->fd, ptr, size); | ||
140 | } | ||
141 | } | ||
142 | |||
143 | void file_writeByte(struct File* f, uint8_t b) { | ||
144 | file_write(f, &b, 1); | ||
145 | } | ||
146 | |||
147 | void file_writeUint16BE(struct File* f, uint16_t n) { | ||
148 | file_writeByte(f, n >> 8); | ||
149 | file_writeByte(f, n & 0xFF); | ||
150 | } | ||
151 | |||
152 | void file_writeUint32BE(struct File* f, uint32_t n) { | ||
153 | file_writeUint16BE(f, n >> 16); | ||
154 | file_writeUint16BE(f, n & 0xFFFF); | ||
155 | } | ||
156 | |||
157 | void file_remove(const char* filename, const char* directory) | ||
158 | { | ||
159 | char buf[512]; | ||
160 | rb->snprintf(buf, 512, "%s/%s", directory, filename); | ||
161 | char *p = buf + rb->strlen(directory) + 1; | ||
162 | string_lower(p); | ||
163 | if(rb->file_exists(buf)) | ||
164 | { | ||
165 | rb->remove(buf); | ||
166 | } | ||
167 | else | ||
168 | { | ||
169 | string_upper(p); | ||
170 | rb->remove(buf); | ||
171 | } | ||
172 | } | ||