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This option had no effect since 0.9.7h / 0.9.8b and it was removed
in recent OpenSSL.
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
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The same path names with different "data" context should not be allowed.
In particular it rejects configurations like this:
proxy_cache_path /var/cache/ keys_zone=one:10m max_size=1g inactive=5m;
proxy_cache_path /var/cache/ keys_zone=two:20m max_size=4m inactive=30s;
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An instance of ngx_path_t is already zeroed by ngx_pcalloc().
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It initializes the "data" pointer of ngx_path_t that will be checked after
subsequent changes.
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This allows to detect client connection close with pending data when
the ngx_http_test_reading() request event handler is set.
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This allows to detect client connection close with pending data on Linux
while processing upstream.
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Since Linux 2.6.17, epoll is able to report about peer half-closed connection
using special EPOLLRDHUP flag on a read event.
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They are not used since 708f8bb772ec (pre 0.0.1).
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There is nothing to do more when recv() has returned 0,
so we should drop the flag.
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After 62be77b0608f nginx can return this code.
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The SSL_CTX_load_verify_locations() may leave errors in the error queue
while returning success (e.g. if there are duplicate certificates in the file
specified), resulting in "ignoring stale global SSL error" alerts later
at runtime.
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Reported by Weibin Yao,
http://mailman.nginx.org/pipermail/nginx-devel/2013-April/003607.html.
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Additionally, detaching a cleanup chain from a request is a bit more resilent
to various bugs if any.
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Casts between pointers and integers produce warnings on size mismatch. To
silence them, cast to (u)intptr_t should be used. Prevoiusly, casts to
ngx_(u)int_t were used in some cases, and several ngx_int_t expressions had
no casts.
As of now it's mostly style as ngx_int_t is defined as intptr_t.
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On win32, time_t is 64 bits wide by default, and passing an ngx_msec_int_t
argument for %T format specifier doesn't work. This doesn't manifest itself
on other platforms as time_t and ngx_msec_int_t are usually of the same size.
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Several warnings silenced, notably (ngx_socket_t) -1 is now checked
on socket operations instead of -1, as ngx_socket_t is unsigned on win32
and gcc complains on comparison.
With this patch, it's now possible to compile nginx using mingw gcc,
with options we normally compile on win32.
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Several false positive warnings silenced, notably W8012 "Comparing
signed and unsigned" (due to u_short values promoted to int), and
W8072 "Suspicious pointer arithmetic" (due to large type values added
to pointers).
With this patch, it's now again possible to compile nginx using bcc32,
with options we normally compile on win32 minus ipv6 and ssl.
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Precompiled headers are disabled as they lead to internal compiler errors
with long configure lines. Couple of false positive warnings silenced.
Various win32 typedefs are adjusted to work with Open Watcom C 1.9 headers.
With this patch, it's now again possible to compile nginx using owc386,
with options we normally compile on win32 minus ipv6 and ssl.
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It is surplus.
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It was introduced in Linux 2.6.39, glibc 2.14 and allows to obtain
file descriptors without actually opening files. Thus made it possible
to traverse path with openat() syscalls without the need to have read
permissions for path components. It is effectively emulates O_SEARCH
which is missing on Linux.
O_PATH is used in combination with O_RDONLY. The last one is ignored
if O_PATH is used, but it allows nginx to not fail when it was built on
modern system (i.e. glibc 2.14+) and run with a kernel older than 2.6.39.
Then O_PATH is unknown to the kernel and ignored, while O_RDONLY is used.
Sadly, fstat() is not working with O_PATH descriptors till Linux 3.6.
As a workaround we fallback to fstatat() with the AT_EMPTY_PATH flag
that was introduced at the same time as O_PATH.
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It is believed to be better than fallback to HTTP/0.9, because most of
the clients at present time support HTTP/1.0. It allows nginx to return
error response code for them in cases when it fail to parse request line,
and therefore fail to detect client protocol version.
Even if the client does not support HTTP/1.0, this assumption should not
cause any harm, since from the HTTP/0.9 point of view it still a valid
response.
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Without u->header_sent set a special response might be generated following
an upgraded connection. The problem appeared in 1ccdda1f37f3 (1.5.3).
Catched by "header already sent" alerts in 1.5.4 after upstream timeouts.
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Because of premature check the effective buffer size was 255 symbols
while the buffer is able to handle 256.
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This allows to approach "server_name" values specified below the
"valid_referers" directive when used within the "server_names" parameter, e.g.:
server_name example.org;
valid_referers server_names;
server_name example.com;
As a bonus, this fixes bogus error with "server_names" specified several times.
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The server_name regexes are normally compiled for case-sensitive matching.
This violates case-insensitive obligations in the referer module. To fix
this, the host string is converted to lower case before matching.
Previously server_name regex was executed against the whole referer string
after dropping the scheme part. This could led to an improper matching, e.g.:
server_name ~^localhost$;
valid_referers server_names;
Referer: http://localhost/index.html
It was changed to look only at the hostname part.
The server_name regexes are separated into another array to not clash with
regular regexes.
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If Content-Length header is not set, and the image size is larger than the
buffer size, client will hang until a timeout occurs.
Now NGX_HTTP_UNSUPPORTED_MEDIA_TYPE is returned immediately.
diff -r d1403de41631 -r 4fae04f332b4
src/http/modules/ngx_http_image_filter_module.c
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As of PCRE 8.33, config.h.generic no longer contains boolean macros. Two
of them (SUPPORT_PCRE8 and HAVE_MEMMOVE) were added to appropriate makefiles.
This allows PCRE 8.33 to compile and don't change anything for previous
versions.
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Previously, an attempt to build pcre.lib on win32 before anything else
failed due to no pcre.h.
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Missing call to ngx_http_run_posted_request() resulted in a main request hang
if subrequest's ssl handshake with an upstream server failed for some reason.
Reported by Aviram Cohen.
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The aforementioned situation is abnormal per se and as such it now forces
request termination with appropriate error message.
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This allows to build a directory listing whenever a loop exists in symbolic
link resolution of the path argument.
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This prevents ngx_http_finalize_request() from issuing
ngx_http_special_response_handler() on a freed context.
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While ngx_get_full_name() might have a bit more descriptive arguments,
the ngx_conf_full_name() is generally easier to use when parsing
configuration and limits exposure of cycle->prefix / cycle->conf_prefix
details.
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