/src/libzip/lib/zip_error.c
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1 | | /* |
2 | | zip_error.c -- zip_error_t helper functions |
3 | | Copyright (C) 1999-2022 Dieter Baron and Thomas Klausner |
4 | | |
5 | | This file is part of libzip, a library to manipulate ZIP archives. |
6 | | The authors can be contacted at <info@libzip.org> |
7 | | |
8 | | Redistribution and use in source and binary forms, with or without |
9 | | modification, are permitted provided that the following conditions |
10 | | are met: |
11 | | 1. Redistributions of source code must retain the above copyright |
12 | | notice, this list of conditions and the following disclaimer. |
13 | | 2. Redistributions in binary form must reproduce the above copyright |
14 | | notice, this list of conditions and the following disclaimer in |
15 | | the documentation and/or other materials provided with the |
16 | | distribution. |
17 | | 3. The names of the authors may not be used to endorse or promote |
18 | | products derived from this software without specific prior |
19 | | written permission. |
20 | | |
21 | | THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS |
22 | | OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
23 | | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
24 | | ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY |
25 | | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
26 | | DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
27 | | GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
28 | | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
29 | | IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
30 | | OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
31 | | IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
32 | | */ |
33 | | |
34 | | #include <stdlib.h> |
35 | | |
36 | | #include "zipint.h" |
37 | | |
38 | | |
39 | | ZIP_EXTERN int |
40 | 69 | zip_error_code_system(const zip_error_t *error) { |
41 | 69 | return error->sys_err; |
42 | 69 | } |
43 | | |
44 | | |
45 | | ZIP_EXTERN int |
46 | 115 | zip_error_code_zip(const zip_error_t *error) { |
47 | 115 | return error->zip_err; |
48 | 115 | } |
49 | | |
50 | | |
51 | | ZIP_EXTERN void |
52 | 23 | zip_error_fini(zip_error_t *err) { |
53 | 23 | free(err->str); |
54 | 23 | err->str = NULL; |
55 | 23 | } |
56 | | |
57 | | |
58 | | ZIP_EXTERN void |
59 | 92 | zip_error_init(zip_error_t *err) { |
60 | 92 | err->zip_err = ZIP_ER_OK; |
61 | 92 | err->sys_err = 0; |
62 | 92 | err->str = NULL; |
63 | 92 | } |
64 | | |
65 | | ZIP_EXTERN void |
66 | 0 | zip_error_init_with_code(zip_error_t *error, int ze) { |
67 | 0 | zip_error_init(error); |
68 | 0 | error->zip_err = ze; |
69 | 0 | switch (zip_error_system_type(error)) { |
70 | 0 | case ZIP_ET_SYS: |
71 | 0 | case ZIP_ET_LIBZIP: |
72 | 0 | error->sys_err = errno; |
73 | 0 | break; |
74 | | |
75 | 0 | default: |
76 | 0 | error->sys_err = 0; |
77 | 0 | break; |
78 | 0 | } |
79 | 0 | } |
80 | | |
81 | | |
82 | | ZIP_EXTERN int |
83 | 23 | zip_error_system_type(const zip_error_t *error) { |
84 | 23 | if (error->zip_err < 0 || error->zip_err >= _zip_err_str_count) |
85 | 0 | return ZIP_ET_NONE; |
86 | | |
87 | 23 | return _zip_err_str[error->zip_err].type; |
88 | 23 | } |
89 | | |
90 | | |
91 | | void |
92 | 0 | _zip_error_clear(zip_error_t *err) { |
93 | 0 | if (err == NULL) |
94 | 0 | return; |
95 | | |
96 | 0 | err->zip_err = ZIP_ER_OK; |
97 | 0 | err->sys_err = 0; |
98 | 0 | } |
99 | | |
100 | | |
101 | | void |
102 | 0 | _zip_error_copy(zip_error_t *dst, const zip_error_t *src) { |
103 | 0 | if (dst == NULL) { |
104 | 0 | return; |
105 | 0 | } |
106 | | |
107 | 0 | dst->zip_err = src->zip_err; |
108 | 0 | dst->sys_err = src->sys_err; |
109 | 0 | } |
110 | | |
111 | | |
112 | | void |
113 | 0 | _zip_error_get(const zip_error_t *err, int *zep, int *sep) { |
114 | 0 | if (zep) |
115 | 0 | *zep = err->zip_err; |
116 | 0 | if (sep) { |
117 | 0 | if (zip_error_system_type(err) != ZIP_ET_NONE) |
118 | 0 | *sep = err->sys_err; |
119 | 0 | else |
120 | 0 | *sep = 0; |
121 | 0 | } |
122 | 0 | } |
123 | | |
124 | | |
125 | | void |
126 | 92 | zip_error_set(zip_error_t *err, int ze, int se) { |
127 | 92 | if (err) { |
128 | 92 | err->zip_err = ze; |
129 | 92 | err->sys_err = se; |
130 | 92 | } |
131 | 92 | } |
132 | | |
133 | | |
134 | | void |
135 | 0 | zip_error_set_from_source(zip_error_t *err, zip_source_t *src) { |
136 | 0 | if (src == NULL) { |
137 | 0 | zip_error_set(err, ZIP_ER_INVAL, 0); |
138 | 0 | return; |
139 | 0 | } |
140 | | |
141 | 0 | _zip_error_copy(err, zip_source_error(src)); |
142 | 0 | } |
143 | | |
144 | | |
145 | | zip_int64_t |
146 | 23 | zip_error_to_data(const zip_error_t *error, void *data, zip_uint64_t length) { |
147 | 23 | int *e = (int *)data; |
148 | | |
149 | 23 | if (length < sizeof(int) * 2) { |
150 | 0 | return -1; |
151 | 0 | } |
152 | | |
153 | 23 | e[0] = zip_error_code_zip(error); |
154 | 23 | e[1] = zip_error_code_system(error); |
155 | 23 | return sizeof(int) * 2; |
156 | 23 | } |