Mercurial > hg > nginx
view src/os/unix/ngx_channel.h @ 7829:2851e4c7de03
Mail: fixed reading with fully filled buffer (ticket #2159).
With SMTP pipelining, ngx_mail_read_command() can be called with s->buffer
without any space available, to parse additional commands received to the
buffer on previous calls. Previously, this resulted in recv() being called
with zero length, resulting in zero being returned, which was interpreted
as a connection close by the client, so nginx silently closed connection.
Fix is to avoid calling c->recv() if there is no free space in the buffer,
but continue parsing of the already received commands.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 21 Apr 2021 23:24:59 +0300 |
parents | 2cd019520210 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_CHANNEL_H_INCLUDED_ #define _NGX_CHANNEL_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> typedef struct { ngx_uint_t command; ngx_pid_t pid; ngx_int_t slot; ngx_fd_t fd; } ngx_channel_t; ngx_int_t ngx_write_channel(ngx_socket_t s, ngx_channel_t *ch, size_t size, ngx_log_t *log); ngx_int_t ngx_read_channel(ngx_socket_t s, ngx_channel_t *ch, size_t size, ngx_log_t *log); ngx_int_t ngx_add_channel_event(ngx_cycle_t *cycle, ngx_fd_t fd, ngx_int_t event, ngx_event_handler_pt handler); void ngx_close_channel(ngx_fd_t *fd, ngx_log_t *log); #endif /* _NGX_CHANNEL_H_INCLUDED_ */