Mercurial > hg > nginx-quic
annotate src/core/ngx_list.h @ 4664:356c91151658 stable-1.2
Merge of r4618: rewrite escaping fix (ticket #162).
The following code resulted in incorrect escaping of uri and possible
segfault:
location / {
rewrite ^(.*) $1?c=$1;
return 200 "$uri";
}
If there were arguments in a rewrite's replacement string, and length was
actually calculated (due to duplicate captures as in the example above,
or variables present), the is_args flag was set and incorrectly copied
after length calculation. This resulted in escaping applied to the uri part
of the replacement, resulting in incorrect escaping. Additionally, buffer
was allocated without escaping expected, thus this also resulted in buffer
overrun and possible segfault.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 04 Jun 2012 11:07:19 +0000 |
parents | d620f497c50f |
children |
rev | line source |
---|---|
441
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1 |
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
2 /* |
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
441
diff
changeset
|
3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
5 */ |
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
6 |
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
7 |
414
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
8 #ifndef _NGX_LIST_H_INCLUDED_ |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
9 #define _NGX_LIST_H_INCLUDED_ |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
10 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
11 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
12 #include <ngx_config.h> |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
13 #include <ngx_core.h> |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
14 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
15 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
16 typedef struct ngx_list_part_s ngx_list_part_t; |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
17 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
18 struct ngx_list_part_s { |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
19 void *elts; |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
20 ngx_uint_t nelts; |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
21 ngx_list_part_t *next; |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
22 }; |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
23 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
24 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
25 typedef struct { |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
26 ngx_list_part_t *last; |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
27 ngx_list_part_t part; |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
28 size_t size; |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
29 ngx_uint_t nalloc; |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
30 ngx_pool_t *pool; |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
31 } ngx_list_t; |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
32 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
33 |
766 | 34 ngx_list_t *ngx_list_create(ngx_pool_t *pool, ngx_uint_t n, size_t size); |
35 | |
36 static ngx_inline ngx_int_t | |
37 ngx_list_init(ngx_list_t *list, ngx_pool_t *pool, ngx_uint_t n, size_t size) | |
415
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
38 { |
501 | 39 list->part.elts = ngx_palloc(pool, n * size); |
40 if (list->part.elts == NULL) { | |
415
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
41 return NGX_ERROR; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
42 } |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
43 |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
44 list->part.nelts = 0; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
45 list->part.next = NULL; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
46 list->last = &list->part; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
47 list->size = size; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
48 list->nalloc = n; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
49 list->pool = pool; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
50 |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
51 return NGX_OK; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
52 } |
414
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
53 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
54 |
415
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
55 /* |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
56 * |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
57 * the iteration through the list: |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
58 * |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
59 * part = &list.part; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
60 * data = part->elts; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
61 * |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
62 * for (i = 0 ;; i++) { |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
63 * |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
64 * if (i >= part->nelts) { |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
65 * if (part->next == NULL) { |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
66 * break; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
67 * } |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
68 * |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
69 * part = part->next; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
70 * data = part->elts; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
71 * i = 0; |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
72 * } |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
73 * |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
74 * ... data[i] ... |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
75 * |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
76 * } |
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
414
diff
changeset
|
77 */ |
414
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
78 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
79 |
416
b9bd635011de
nginx-0.0.10-2004-09-06-22:45:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
80 void *ngx_list_push(ngx_list_t *list); |
414
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
81 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
82 |
388a842cbbe1
nginx-0.0.10-2004-09-03-19:50:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
83 #endif /* _NGX_LIST_H_INCLUDED_ */ |