xref: /PHP-7.0/ext/zip/lib/zip_error.c (revision 0d57c06b)
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