TCPSocket.gethostbyname has problems similar to
Socket.gethostbyname.
An example of the problem which only the address family of
the first address is returned:
```
pp TCPSocket.gethostbyname("www.wide.ad.jp")
#=> ["www.wide.ad.jp",
[],
10,
"2001:200:dff:fff1:216:3eff:fe4b:651c",
"203.178.137.58"]
```
The address family of the first address, AF_INET6 (10), is
returned but
the address family of the second address, AF_INET, is not
returned.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60319 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Addrinfo.getaddrinfo is recommended instead of
Socket.gethostbyname.
Addrinfo#getnameinfo is recommended instead of
Socket.gethostbyaddr.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60280 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
[Feature #13097]
I confirmed current ruby (Ruby 2.4 and trunk) uses
gethostbyname() and gethostbyaddr().
Socket.gethostbyname uses getaddrinfo() and gethostbyname().
Socket.gethostbyaddr uses gethostbyaddr().
Socket.gethostbyname uses gethostbyname() to obtain alias hostnames.
RFC 3493 defines getaddrinfo()/getnameinfo() and
describes the problems of gethostbyname()/gethostbyaddr().
The problems are difficult protocol handling and thread-unsafety.
Since Ruby has GVL, the thread-unsafety doesn't cause wrong result.
But it may block other threads until finishing DNS query.
Socket.gethostbyname has the protocol handling problem.
It returns only one address family:
```
% ruby -rpp -rsocket -e 'pp Socket.gethostbyname("www.wide.ad.jp")'
["www.wide.ad.jp",
[],
10,
" \x01\x02\x00\r\xFF\xFF\xF1\x02\x16>\xFF\xFEKe\x1C",
"\xCB\xB2\x89:"]
```
www.wide.ad.jp has one IPv6 address and one IPv4 address.
But Socket.gethostbyname returns only one address family, 10 (AF_INET6),
which is the address family of the first address.
Also, Socket.gethostbyname and Socket.gethostbyaddr uses
4-bytes binary IPv4 address and 16-bytes binary IPv6 address.
This is not usual in other socket API in Ruby.
(Most socket API uses binary sockaddr string or Addrinfo object)
I think Socket.gethostbyname and Socket.gethostbyaddr are too far
from recommendable API.
So, I added deprecation description for documents for them.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60266 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/extconf.rb: use system getaddrinfo, getnameinfo, and
freeaddrinfo on Windows if they are provided. they conflict
with addrinfo.h and cannot compile. conftest.exe linked against
msvcr90.dll segfaults when invoked in extconf.rb for unknown
reason, and failed to check them.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59414 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/depend: separate constdefs.c and constdefs.h so that
only one process will run when parallel building.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58609 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
On platforms where MSG_DONTWAIT works reliably on all sockets
(so far, I know of Linux), we can avoid fcntl syscalls and
implement IO#write_nonblock and IO#read_nonblock in terms of the
socket-specific send and recv family of syscalls.
This avoids side effects on the socket, and also encourages
generic code to be written in cases where IO wrappers like
OpenSSL::SSL::SSLSocket are used.
Perhaps in the future, side-effect-free non-blocking I/O can
be standard on all files and OSes: https://cr.yp.to/unix/nonblock.html
* ext/socket/lib/socket.rb (read_nonblock, write_nonblock):
Linux-specific wrapper without side effects
[ruby-core:80780] [Feature #13362]
* test/socket/test_basicsocket.rb (test_read_write_nonblock):
new test
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58400 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Symbol proc is shorter human and machine code;
and also avoids needing to name variables.
* ext/socket/lib/socket.rb (Socket.udp_server_sockets): use symbol proc
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58320 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/lib/socket.rb (Socket.udp_server_sockets): remove duplicated
addresses before passing it to ip_sockets_port0 because it causes
Errno::EADDRINUSE and retry forever.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58293 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/basicsocket.c (rsock_bsock_send): show proper system
call name in the exception message.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58277 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Onigumo 6 (r57045) introduced new onigumo.h header file, which is
required from quite much everywhere. This commit adds necessary
dependencies.
Note: ruby/oniguruma.h now includes onigumo.h,
ruby/io.h includes oniguruma.h,
ruby/encoding.h also includes oniguruma.h,
and internal.h includes encoding.h.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58054 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
gc.c (gc_mark_children, case T_DATA) does not use
the dmark function pointer if DATA_PTR is NULL
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57821 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Update docs to reflect EOF behavior change of read_nonblock and
write_nonblock when using `exception: false`.
[Fix GH-1527]
Author: Russell Davis <russell-stripe@users.noreply.github.com>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57690 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
send(2) and sendto(2) syscalls return `ssize_t', use the
proper type and macro for converting to a Numeric VALUE.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57354 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Made possible by r56795, this reduces human and byte code size.
* ext/socket/lib/socket.rb (self.ip_sockets_port0,
self.tcp_server_sockets_port0,
self.tcp_server_sockets,
self.udp_server_sockets): use symbol proc
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56867 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/lib/socket.rb: remove unnecessary closed checks,
close on closed socket no longer raises an exception.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56795 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/lib/socket.rb (UDPSocket#recvfrom_nonblock): [DOC] Remove
a false statement "If _maxlen_ is omitted, its default value is
65536." maxlen, the first parameter, cannot be omitted as the method
signature indicates. This hasn't changed ever since it was first
implemented.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56499 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Use PRIuSIZE instead of PRIdSIZE. This fixes the exception message shown
on too large xmalloc2. This commit also fixes other incorrect use of
PRIdSIZE in other functions; though most of them are debug print.
* gc.c (heap_extend_pages, get_envparam_size, ruby_malloc_size_overflow,
gc_profile_dump_on): Use PRIuSIZE instead of PRIdSIZE as the passed
value is size_t, not ssize_t.
* iseq.c (get_line_info, rb_iseq_disasm_insn): Ditto.
* sprintf.c (rb_str_format): Ditto.
* thread_win32.c (native_thread_create): Ditto.
* vm.c (get_param): Ditto.
* ext/objspace/objspace_dump.c (dump_append_string_content,
dump_object): Ditto.
* ext/socket/raddrinfo.c (host_str, port_str): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56156 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* *.c: rename rb_funcall2 to rb_funcallv, except for extensions
which are/will be/may be gems. [Fix GH-1406]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55773 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
instead of (Safe)StringValue, to detect NUL byte in the string.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55222 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/raddrinfo.c (host_str, port_str): use RSTRING_LEN
instead of strlen, since RSTRING_PTR StringValueCStr may not be
NUL-terminated when SHARABLE_MIDDLE_SUBSTRING=1. reported by
@tmtms, http://twitter.com/tmtms/status/736910516229005312
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55213 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/option.c (inspect_tcpi_msec): more accurate condition
for TCPI msec member inspection function.
[ruby-core:74388] [Bug #12185]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54139 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/option.c (sockopt_bool): relax boolean size to be one
too not only sizeof(int). Winsock getsockopt() returns a single
byte as a boolean socket option. [ruby-core:72730] [Bug #11958]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53561 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/option.c (check_size): extract a macro to check
binary data size, with a consistent message.
* ext/socket/option.c (sockopt_byte): fix error message,
sizeof(int) differs from sizeof(unsigned char) in general.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53557 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* io.c (rb_readwrite_syserr_fail): works with the given errno than
thread local errno.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53265 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c, io.c, util.c: prefer rb_syserr_fail with saved errno
over setting errno then call rb_sys_fail, not to be clobbered
potentially and to reduce thread local errno accesses.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53264 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
