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annotate src/core/ngx_array.h @ 7674:7731c710796f

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Memcached: protect from too long responses. If a memcached response was followed by a correct trailer, and then the NUL character followed by some extra data - this was accepted by the trailer checking code. This in turn resulted in ctx->rest underflow and caused negative size buffer on the next reading from the upstream, followed by the "negative size buf in writer" alert. Fix is to always check for too long responses, so a correct trailer cannot be followed by extra data.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 06 Jul 2020 18:36:17 +0300
parents 65b895cd0dfa
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /*
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3 * Copyright (C) Igor Sysoev
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d620f497c50f Copyright updated.
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4 * Copyright (C) Nginx, Inc.
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5 */
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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8 #ifndef _NGX_ARRAY_H_INCLUDED_
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9 #define _NGX_ARRAY_H_INCLUDED_
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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65b895cd0dfa Moved ngx_array_t definition from ngx_core.h to ngx_array.h.
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16 typedef struct {
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87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
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17 void *elts;
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
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18 ngx_uint_t nelts;
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19 size_t size;
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20 ngx_uint_t nalloc;
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21 ngx_pool_t *pool;
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65b895cd0dfa Moved ngx_array_t definition from ngx_core.h to ngx_array.h.
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parents: 4412
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22 } ngx_array_t;
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25 ngx_array_t *ngx_array_create(ngx_pool_t *p, ngx_uint_t n, size_t size);
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26 void ngx_array_destroy(ngx_array_t *a);
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27 void *ngx_array_push(ngx_array_t *a);
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28 void *ngx_array_push_n(ngx_array_t *a, ngx_uint_t n);
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31 static ngx_inline ngx_int_t
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32 ngx_array_init(ngx_array_t *array, ngx_pool_t *pool, ngx_uint_t n, size_t size)
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33 {
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34 /*
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35 * set "array->nelts" before "array->elts", otherwise MSVC thinks
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36 * that "array->nelts" may be used without having been initialized
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37 */
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39 array->nelts = 0;
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40 array->size = size;
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41 array->nalloc = n;
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42 array->pool = pool;
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43
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44 array->elts = ngx_palloc(pool, n * size);
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45 if (array->elts == NULL) {
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46 return NGX_ERROR;
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47 }
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48
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49 return NGX_OK;
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50 }
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53 #endif /* _NGX_ARRAY_H_INCLUDED_ */