Mercurial > hg > nginx-quic
annotate auto/lib/libatomic/conf @ 4617:972642646f06
Rewrite: fixed escaping and possible segfault (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 | Fri, 11 May 2012 13:19:22 +0000 |
parents | d620f497c50f |
children |
rev | line source |
---|---|
3363 | 1 |
2 # Copyright (C) Igor Sysoev | |
4412 | 3 # Copyright (C) Nginx, Inc. |
3363 | 4 |
5 | |
6 if [ $NGX_LIBATOMIC != YES ]; then | |
7 | |
8 have=NGX_HAVE_LIBATOMIC . auto/have | |
9 CORE_INCS="$CORE_INCS $NGX_LIBATOMIC/src" | |
10 LINK_DEPS="$LINK_DEPS $NGX_LIBATOMIC/src/libatomic_ops.a" | |
11 CORE_LIBS="$CORE_LIBS $NGX_LIBATOMIC/src/libatomic_ops.a" | |
12 | |
13 else | |
14 | |
15 ngx_feature="atomic_ops library" | |
16 ngx_feature_name=NGX_HAVE_LIBATOMIC | |
3366 | 17 ngx_feature_run=yes |
3378
5d17022a1e88
fix libatomic usage on arm, cris, hppa, m68k, and sparc platforms
Igor Sysoev <igor@sysoev.ru>
parents:
3366
diff
changeset
|
18 ngx_feature_incs="#define AO_REQUIRE_CAS |
5d17022a1e88
fix libatomic usage on arm, cris, hppa, m68k, and sparc platforms
Igor Sysoev <igor@sysoev.ru>
parents:
3366
diff
changeset
|
19 #include <atomic_ops.h>" |
3363 | 20 ngx_feature_path= |
21 ngx_feature_libs="-latomic_ops" | |
3366 | 22 ngx_feature_test="long n = 0; |
23 if (!AO_compare_and_swap(&n, 0, 1)) | |
24 return 1; | |
25 if (AO_fetch_and_add(&n, 1) != 1) | |
26 return 1; | |
27 if (n != 2) | |
28 return 1; | |
3363 | 29 AO_nop();" |
30 . auto/feature | |
31 | |
32 if [ $ngx_found = yes ]; then | |
33 CORE_LIBS="$CORE_LIBS $ngx_feature_libs" | |
34 else | |
35 | |
36 cat << END | |
37 | |
38 $0: error: libatomic_ops library was not found. | |
39 | |
40 END | |
41 exit 1 | |
42 fi | |
43 fi |