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Currently this flag is needed for epoll and rtsig, and though these methods
usually present on different platforms than kqueue, nginx can be compiled to
support all of them.
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The $NGX_AUTO_CONFIG_H added to perl module Makefile dependencies to
make sure it's always rebuild after a configure. It is needed as we
expand various variables used for Makefile generation during configure
(in particular, nginx version).
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The call to ngx_sock_ntop() in ngx_connection_local_sockaddr() might be
performed with the uninitialized "len" variable. The fix is to initialize
variable to the size of corresponding socket address type.
The issue was introduced in commit 05ba5bce31e0.
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On Linux, sockaddr length is required to process unix socket addresses properly
due to unnamed sockets (which don't have sun_path set at all) and abstract
namespace sockets.
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ngx_http_upstream_get_keepalive_peer() may return NGX_DONE to
indicate that the cached keepalive connection is reused.
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The stderr redirection code is moved to ngx_log_redirect_stderr().
The opening of the default log code is moved to ngx_log_open_default().
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Minimal data length we expect for further calls was calculated incorrectly
if parsing stopped right after parsing chunk size. This might in theory
affect clients and/or backends using LF instead of CRLF.
Patch by Dmitry Popov.
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On Linux x32 inclusion of sys/sysctl.h produces an error. As sysctl() is
only used by rtsig event method code, which is legacy and not compiled
in by default on modern linuxes, the sys/sysctl.h file now only included
if rtsig support is enabled.
Based on patch by Serguei I. Ivantsov.
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When several "error_log" directives are specified in the same configuration
block, logs are written to all files with a matching log level.
All logs are stored in the singly-linked list that is sorted by log level in
the descending order.
Specific debug levels (NGX_LOG_DEBUG_HTTP,EVENT, etc.) are not supported
if several "error_log" directives are specified. In this case all logs
will use debug level that has largest absolute value.
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The cycle->new_log->log_level should only be initialized by ngx_init_cycle()
if no error logs were found in the configuration. This move allows to get rid
of extra initialization in ngx_error_log().
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Avoid stripping the status text when proxying for compatibility with http.
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It was broken by X-Forwarded-For related changes in f7fe817c92a2 (1.3.14)
as hh->offset is no longer 0 for Cookie.
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The *u previously logged isn't yet initialized at this point, and
Valgrind complains.
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Found by Valgrind.
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Valgrind complains if we pass uninitialized memory to a syscall:
==36492== Syscall param sendmsg(msg.msg_iov[0]) points to uninitialised byte(s)
==36492== at 0x6B5E6A: sendmsg (in /usr/lib/system/libsystem_kernel.dylib)
==36492== by 0x10004288E: ngx_signal_worker_processes (ngx_process_cycle.c:527)
==36492== by 0x1000417A7: ngx_master_process_cycle (ngx_process_cycle.c:203)
==36492== by 0x100001F10: main (nginx.c:410)
==36492== Address 0x7fff5fbff71c is on thread 1's stack
Even initialization of all members of the structure passed isn't enough, as
there is padding which still remains uninitialized and results in Valgrind
complaint. Note there is no real problem here as data from uninitialized
memory isn't used.
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Valgrind intercepts SIGUSR2 in some cases, and nginx might not be able to
start due to sigaction() failure. If compiled with NGX_VALGRIND defined,
we now ignore the failure of sigaction().
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The module always produces only one and obviously the last buffer in chain.
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Currently these macros are synonyms, but this may change in the future
(in particular, spdy/3 uses 4 bytes for lengths).
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If "stderr" was specified in one of the "error_log" directives,
stderr is not redirected to the first error_log on startup,
configuration reload, and reopening log files.
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On win32 stderr was not redirected into a file specified by "error_log"
while reopening files. Fix is to use platform-independent functions to
work with stderr, as already used by ngx_init_cycle() and main() since
rev. d8316f307b6a.
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Use of accept mutex on win32 may result in a deadlock if there are multiple
worker_processes configured and the mutex is grabbed by a process which
can't accept connections.
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This fixes connection hang with websockets proxy, and likely some other
places as well.
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The parameter is mostly identical to http_404, and is expected to
be used in similar situations. The 403 code might be returned by
a backend instead of 404 on initial sync of new directories with rsync.
See here for feature request and additional details:
http://mailman.nginx.org/pipermail/nginx-ru/2013-April/050920.html
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Directive is similar to ssi_last_modified and sub_filter_last_modified
directives introduced by previous commits.
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Directive is similar to ssi_last_modified introduced by previous commit.
Patch by Alexey Kolpakov.
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The "ssi_last_modified" directive allows to preserve Last-Modified header
in SSI responses. The directive is similar to SSILastModified one available
in Apache:
http://httpd.apache.org/docs/2.4/mod/mod_include.html#ssilastmodified
Patch by Alexey Kolpakov.
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It is now a syntax error if tokens passed to a custom configuration
handler are terminated by "{".
The following incorrect configuration is now properly rejected:
map $v $v2 {
a b {
c d {
e f {
}
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An invalid memcached reply that started with '\n' could cause
segmentation fault.
An invalid memcached reply "VALUE / 0 2\r?ok\r\nEND\r\n" was
considered as a valid response.
In addition, if memcached reports that the key was not found,
set u->headers_in.content_length_n to 0. This ensures that
ngx_http_memcached_filter() will not be called while previous
code relied on always intercepting 404. Initialization of
ctx->rest was moved to where it belongs.
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No functional changes.
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
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No functional changes.
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
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This makes it accessible via dynamic lookup with ngx_http_get_variable()
from Perl, SSI, etc.
Patch by Yichun Zhang (agentzh).
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Due to peer->checked always set since rev. c90801720a0c (1.3.0)
by round-robin and least_conn balancers (ip_hash not affected),
the code in ngx_http_upstream_free_round_robin_peer() function
incorrectly reset peer->fails too often.
Reported by Dmitry Popov,
http://mailman.nginx.org/pipermail/nginx-devel/2013-May/003720.html
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The provided argument list didn't follow a used format string.
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