1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/*
zip_set_name.c -- rename helper function
Copyright (C) 1999-2016 Dieter Baron and Thomas Klausner
This file is part of libzip, a library to manipulate ZIP archives.
The authors can be contacted at <libzip@nih.at>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
3. The names of the authors may not be used to endorse or promote
products derived from this software without specific prior
written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include <string.h>
#include "zipint.h"
int
_zip_set_name(zip_t *za, zip_uint64_t idx, const char *name, zip_flags_t flags)
{
zip_entry_t *e;
zip_string_t *str;
bool same_as_orig;
zip_int64_t i;
const zip_uint8_t *old_name, *new_name;
zip_string_t *old_str;
if (idx >= za->nentry) {
zip_error_set(&za->error, ZIP_ER_INVAL, 0);
return -1;
}
if (ZIP_IS_RDONLY(za)) {
zip_error_set(&za->error, ZIP_ER_RDONLY, 0);
return -1;
}
if (name && name[0] != '\0') {
/* TODO: check for string too long */
if ((str=_zip_string_new((const zip_uint8_t *)name, (zip_uint16_t)strlen(name), flags, &za->error)) == NULL)
return -1;
if ((flags & ZIP_FL_ENCODING_ALL) == ZIP_FL_ENC_GUESS && _zip_guess_encoding(str, ZIP_ENCODING_UNKNOWN) == ZIP_ENCODING_UTF8_GUESSED)
str->encoding = ZIP_ENCODING_UTF8_KNOWN;
}
else
str = NULL;
/* TODO: encoding flags needed for CP437? */
if ((i=_zip_name_locate(za, name, 0, NULL)) >= 0 && (zip_uint64_t)i != idx) {
_zip_string_free(str);
zip_error_set(&za->error, ZIP_ER_EXISTS, 0);
return -1;
}
/* no effective name change */
if (i>=0 && (zip_uint64_t)i == idx) {
_zip_string_free(str);
return 0;
}
e = za->entry+idx;
if (e->orig)
same_as_orig = _zip_string_equal(e->orig->filename, str);
else
same_as_orig = false;
if (!same_as_orig && e->changes == NULL) {
if ((e->changes=_zip_dirent_clone(e->orig)) == NULL) {
zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
_zip_string_free(str);
return -1;
}
}
if ((new_name = _zip_string_get(same_as_orig ? e->orig->filename : str, NULL, 0, &za->error)) == NULL) {
_zip_string_free(str);
return -1;
}
if (e->changes) {
old_str = e->changes->filename;
}
else if (e->orig) {
old_str = e->orig->filename;
}
else {
old_str = NULL;
}
if (old_str) {
if ((old_name = _zip_string_get(old_str, NULL, 0, &za->error)) == NULL) {
_zip_string_free(str);
return -1;
}
}
else {
old_name = NULL;
}
if (_zip_hash_add(za->names, new_name, idx, 0, &za->error) == false) {
_zip_string_free(str);
return -1;
}
if (old_name) {
_zip_hash_delete(za->names, old_name, NULL);
}
if (same_as_orig) {
if (e->changes) {
if (e->changes->changed & ZIP_DIRENT_FILENAME) {
_zip_string_free(e->changes->filename);
e->changes->changed &= ~ZIP_DIRENT_FILENAME;
if (e->changes->changed == 0) {
_zip_dirent_free(e->changes);
e->changes = NULL;
}
else {
/* TODO: what if not cloned? can that happen? */
e->changes->filename = e->orig->filename;
}
}
}
_zip_string_free(str);
}
else {
if (e->changes->changed & ZIP_DIRENT_FILENAME) {
_zip_string_free(e->changes->filename);
}
e->changes->changed |= ZIP_DIRENT_FILENAME;
e->changes->filename = str;
}
return 0;
}
|
