Mercurial > hg > nginx-quic
view src/os/unix/ngx_time.h @ 7119:fef61d26da39
Fixed buffer overread with unix sockets after accept().
Some OSes (notably macOS, NetBSD, and Solaris) allow unix socket addresses
larger than struct sockaddr_un. Moreover, some of them (macOS, Solaris)
return socklen of the socket address before it was truncated to fit the
buffer provided. As such, on these systems socklen must not be used without
additional check that it is within the buffer provided.
Appropriate checks added to ngx_event_accept() (after accept()),
ngx_event_recvmsg() (after recvmsg()), and ngx_set_inherited_sockets()
(after getsockname()).
We also obtain socket addresses via getsockname() in
ngx_connection_local_sockaddr(), but it does not need any checks as
it is only used for INET and INET6 sockets (as there can be no
wildcard unix sockets).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 04 Oct 2017 21:19:33 +0300 |
parents | d620f497c50f |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_TIME_H_INCLUDED_ #define _NGX_TIME_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> typedef ngx_rbtree_key_t ngx_msec_t; typedef ngx_rbtree_key_int_t ngx_msec_int_t; typedef struct tm ngx_tm_t; #define ngx_tm_sec tm_sec #define ngx_tm_min tm_min #define ngx_tm_hour tm_hour #define ngx_tm_mday tm_mday #define ngx_tm_mon tm_mon #define ngx_tm_year tm_year #define ngx_tm_wday tm_wday #define ngx_tm_isdst tm_isdst #define ngx_tm_sec_t int #define ngx_tm_min_t int #define ngx_tm_hour_t int #define ngx_tm_mday_t int #define ngx_tm_mon_t int #define ngx_tm_year_t int #define ngx_tm_wday_t int #if (NGX_HAVE_GMTOFF) #define ngx_tm_gmtoff tm_gmtoff #define ngx_tm_zone tm_zone #endif #if (NGX_SOLARIS) #define ngx_timezone(isdst) (- (isdst ? altzone : timezone) / 60) #else #define ngx_timezone(isdst) (- (isdst ? timezone + 3600 : timezone) / 60) #endif void ngx_timezone_update(void); void ngx_localtime(time_t s, ngx_tm_t *tm); void ngx_libc_localtime(time_t s, struct tm *tm); void ngx_libc_gmtime(time_t s, struct tm *tm); #define ngx_gettimeofday(tp) (void) gettimeofday(tp, NULL); #define ngx_msleep(ms) (void) usleep(ms * 1000) #define ngx_sleep(s) (void) sleep(s) #endif /* _NGX_TIME_H_INCLUDED_ */