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annotate src/core/ngx_syslog.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 7f9935f07fe9
children 29adacffdefa
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5702
777202558122 Added syslog support for error_log and access_log directives.
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1
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 */
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7 #ifndef _NGX_SYSLOG_H_INCLUDED_
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8 #define _NGX_SYSLOG_H_INCLUDED_
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11 typedef struct {
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12 ngx_uint_t facility;
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13 ngx_uint_t severity;
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14 ngx_str_t tag;
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16 ngx_addr_t server;
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17 ngx_connection_t conn;
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a6a2016b8e31 Syslog: added "nohostname" option.
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18 unsigned busy:1;
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19 unsigned nohostname:1;
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20 } ngx_syslog_peer_t;
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23 char *ngx_syslog_process_conf(ngx_conf_t *cf, ngx_syslog_peer_t *peer);
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24 u_char *ngx_syslog_add_header(ngx_syslog_peer_t *peer, u_char *buf);
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25 void ngx_syslog_writer(ngx_log_t *log, ngx_uint_t level, u_char *buf,
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26 size_t len);
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27 ssize_t ngx_syslog_send(ngx_syslog_peer_t *peer, u_char *buf, size_t len);
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30 #endif /* _NGX_SYSLOG_H_INCLUDED_ */