Mercurial > hg > nginx
view src/core/ngx_sha1.h @ 7401:a7ff19afbb14
Negative size buffers detection.
In the past, there were several security issues which resulted in
worker process memory disclosure due to buffers with negative size.
It looks reasonable to check for such buffers in various places,
much like we already check for zero size buffers.
While here, removed "#if 1 / #endif" around zero size buffer checks.
It looks highly unlikely that we'll disable these checks anytime soon.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 26 Nov 2018 18:29:56 +0300 |
parents | 9eefb38f0005 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_SHA1_H_INCLUDED_ #define _NGX_SHA1_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> typedef struct { uint64_t bytes; uint32_t a, b, c, d, e, f; u_char buffer[64]; } ngx_sha1_t; void ngx_sha1_init(ngx_sha1_t *ctx); void ngx_sha1_update(ngx_sha1_t *ctx, const void *data, size_t size); void ngx_sha1_final(u_char result[20], ngx_sha1_t *ctx); #endif /* _NGX_SHA1_H_INCLUDED_ */