1 /*
2 zip_error.c -- zip_error_t helper functions
3 Copyright (C) 1999-2015 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 <libzip@nih.at>
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
zip_error_code_system(const zip_error_t * error)40 zip_error_code_system(const zip_error_t *error) {
41 return error->sys_err;
42 }
43
44
45 ZIP_EXTERN int
zip_error_code_zip(const zip_error_t * error)46 zip_error_code_zip(const zip_error_t *error) {
47 return error->zip_err;
48 }
49
50
51 ZIP_EXTERN void
zip_error_fini(zip_error_t * err)52 zip_error_fini(zip_error_t *err)
53 {
54 free(err->str);
55 err->str = NULL;
56 }
57
58
59 ZIP_EXTERN void
zip_error_init(zip_error_t * err)60 zip_error_init(zip_error_t *err)
61 {
62 err->zip_err = ZIP_ER_OK;
63 err->sys_err = 0;
64 err->str = NULL;
65 }
66
67 ZIP_EXTERN void
zip_error_init_with_code(zip_error_t * error,int ze)68 zip_error_init_with_code(zip_error_t *error, int ze)
69 {
70 zip_error_init(error);
71 error->zip_err = ze;
72 switch (zip_error_system_type(error)) {
73 case ZIP_ET_SYS:
74 error->sys_err = errno;
75 break;
76
77 default:
78 error->sys_err = 0;
79 break;
80 }
81 }
82
83
84 ZIP_EXTERN int
zip_error_system_type(const zip_error_t * error)85 zip_error_system_type(const zip_error_t *error) {
86 if (error->zip_err < 0 || error->zip_err >= _zip_nerr_str)
87 return ZIP_ET_NONE;
88
89 return _zip_err_type[error->zip_err];
90 }
91
92
93 void
_zip_error_clear(zip_error_t * err)94 _zip_error_clear(zip_error_t *err)
95 {
96 if (err == NULL)
97 return;
98
99 err->zip_err = ZIP_ER_OK;
100 err->sys_err = 0;
101 }
102
103
104 void
_zip_error_copy(zip_error_t * dst,const zip_error_t * src)105 _zip_error_copy(zip_error_t *dst, const zip_error_t *src)
106 {
107 dst->zip_err = src->zip_err;
108 dst->sys_err = src->sys_err;
109 }
110
111
112 void
_zip_error_get(const zip_error_t * err,int * zep,int * sep)113 _zip_error_get(const zip_error_t *err, int *zep, int *sep)
114 {
115 if (zep)
116 *zep = err->zip_err;
117 if (sep) {
118 if (zip_error_system_type(err) != ZIP_ET_NONE)
119 *sep = err->sys_err;
120 else
121 *sep = 0;
122 }
123 }
124
125
126 void
zip_error_set(zip_error_t * err,int ze,int se)127 zip_error_set(zip_error_t *err, int ze, int se)
128 {
129 if (err) {
130 err->zip_err = ze;
131 err->sys_err = se;
132 }
133 }
134
135
136 void
_zip_error_set_from_source(zip_error_t * err,zip_source_t * src)137 _zip_error_set_from_source(zip_error_t *err, zip_source_t *src)
138 {
139 _zip_error_copy(err, zip_source_error(src));
140 }
141
142
143 zip_int64_t
zip_error_to_data(const zip_error_t * error,void * data,zip_uint64_t length)144 zip_error_to_data(const zip_error_t *error, void *data, zip_uint64_t length)
145 {
146 int *e = (int *)data;
147
148 if (length < sizeof(int)*2) {
149 return -1;
150 }
151
152 e[0] = zip_error_code_zip(error);
153 e[1] = zip_error_code_system(error);
154 return sizeof(int)*2;
155 }
156
