log_debug and log_info should not waste CPU and disk space while logging
to file and stderr, but SIGUSR1 dump is explicit request, so it's always
logged.
Use _XOPEN_SOURCE=600 to make system headers expose Single UNIX
Specification v3 (SUSv3) definitions, i.e. POSIX.1-2001 base
specification plus the X/Open System Interface (XSI) extension.
POSIX.1-2001 is aligned with C99, so that all of the library
functions standardized in C99 are also standardized in POSIX.1-2001.
Use _BSD_SOURCE together with _DEFAULT_SOURCE to compile without
warnings in glibc <= 2.19 and glibc >= 2.20 (_BSD_SOURCE is deprecated
since glibc 2.20 and it has same effect as defining _DEFAULT_SOURCE
but generates a compile-time warning if used alone). This is required
for availability of non-POSIX functions, like inet_aton() or timercmp(),
that are present on most BSD derivatives.
Note: _DEFAULT_SOURCE, which was introduced in glibc 2.19, will actually
bump _POSIX_C_SOURCE from 200112L to 200809L, but it brings no harm.
__typeof adheres to ISO C standard as it is reserved identifier [1],
so it is collision-free and works in non-GNU mode as long as compiler
supports it.
[1] C99: "All identifiers that begin with an underscore and either an
uppercase letter or another underscore are always reserved for any use."
Statement expression is GNU C extension, not present in ISO standard.
Type checking works now via implicit conversion performed for compound
literal (compound literals are available since C99). typeof is only used
on GNUC compilers like gcc or clang.
This commit implements two more features:
* min_accept_backoff configuration option
* retry accept() after some close() calls
See also https://github.com/darkk/redsocks/issues/19
Note: I don't know source of doc/iptables-packet-flow.png and
doc/iptables-packet-flow-ng.png files, their license is unknown.
As far as I remember, it's something CC-like and they're quite old:
-rw-r--r-- 1 darkk darkk 99799 2007-09-16 07:00 iptables-packet-flow.png
-rw-r--r-- 1 darkk darkk 287299 2009-10-09 10:42 iptables-packet-flow-ng.png
debian/* files from redsocks_0.2-1.debian.tar.gz are uploaded to
upstream to ease maintenance.
MD5(redsocks_0.2-1.debian.tar.gz) = 1d4fe1c98520ffe683a55220c80df193
Signed-off-by: Leonid Evdokimov <leon@darkk.net.ru>
Libevent 2 deprecates evbuffer_readline() function, where any sequence
of any number of carriage return and linefeed characters is treated like
end of line, and introduces better evbuffer_readln(), where termination
format can be explicitly set to: \n, [\r]\n, \r\n or already mentioned
old behaviour.
Change past evbuffer_readline() calls to new
redsocks_evbuffer_readline() function. If libevent 2 is present, use
there evbuffer_readln() with eol_style set to an optional carriage
return, followed by a linefeed (EVBUFFER_EOL_CRLF) instead of obsolete
evbuffer_readln().
Important note:
Consuming all CR and LF characters in one go (behaviour of
evbuffer_readline(), nowadays aliasing to evbuffer_readln() with
eol_style set to EVBUFFER_EOL_ANY) hangs up parsing of HTTP request
header ending with "\r\n\r\n", because it misses the empty line.
Conflicts (resolved):
utils.c
utils.h
