Mercurial > hg > nginx-quic
annotate src/core/ngx_parse.h @ 4658:c92289afb5be stable-1.2
Merge of r4611, r4620: resolver fixes.
*) Fixed segmentation fault in ngx_resolver_create_name_query().
If name passed for resolution was { 0, NULL } (e.g. as a result
of name server returning CNAME pointing to ".") pointer wrapped
to (void *) -1 resulting in segmentation fault on an attempt to
dereference it.
Reported by Lanshun Zhou.
*) Resolver: protection from duplicate responses.
If we already had CNAME in resolver node (i.e. rn->cnlen and rn->u.cname
set), and got additional response with A record, it resulted in rn->cnlen
set and rn->u.cname overwritten by rn->u.addr (or rn->u.addrs), causing
segmentation fault later in ngx_resolver_free_node() on an attempt to free
overwritten rn->u.cname. The opposite (i.e. CNAME got after A) might cause
similar problems as well.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 04 Jun 2012 10:15:55 +0000 |
parents | 41f640a693de |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #ifndef _NGX_PARSE_H_INCLUDED_ |
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9 #define _NGX_PARSE_H_INCLUDED_ |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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15 |
563 | 16 ssize_t ngx_parse_size(ngx_str_t *line); |
663 | 17 off_t ngx_parse_offset(ngx_str_t *line); |
4183
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18 ngx_int_t ngx_parse_time(ngx_str_t *line, ngx_uint_t is_sec); |
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21 #endif /* _NGX_PARSE_H_INCLUDED_ */ |