I'm going to drop use of getpass(). As a first step, weaken the bond
by hiding it in a separate function.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Why upgrade? I'm not a lawyer, but here's my take on the differences
to version 2:
* Software patents: better protection against abuse of patents to
prevent users from exercising the rights under the GPL. I doubt
we'll get hit with a patent suit, but it's a good move just on
general principles.
* License compatibility: compatible with more free licenses, i.e. can
"steal" more free software for use in Empire. I don't expect to steal
much, but it's nice to have the option.
* Definition of "source code": modernization of some details for today's
networked world, to make it easier to distribute the software. Not
really relevant to us now, as we normally distribute full source code.
* Tivoization: this is about putting GPL-licensed software in hardware,
then make the hardware refuse to run modified software. "Neat" trick
to effectively deny its users their rights under the GPL. Abuse was
"pioneered" by TiVo (popular digital video recorders). GPLv3 forbids
it. Unlikely to become a problem for us.
* Internationalization: more careful wording, to harden the license
outside the US. The lawyers tell us it better be done that way.
* License violations: friendlier way to deal with license violations.
This has come out of past experience enforcing the GPL.
* Additional permissions: Probably not relevant to us.
Also include myself in the list of principal authors.
Move client's w32_connect() to w32sockets.c.
Replace w32_recv() and w32_send() by read() and write().
Replace w32_close() by w32_close_function.
Replace call of WSAStartup() in w32_sysdep_init() by
w32_socket_init().
Remove the identical copies of fd_is_socket(),
w32_set_winsock_errno(), w32_socket().
Commit 8c3b8d10 replaced the getpass() for Windows by a generic
ersatz_getpass(). This lost the "switch off echo" feature, with the
excuse that it doesn't work for me (MinGW & Wine). Turns out it works
under real Windows. Restore the feature.
getpass() is traditional Unix, but has been withdrawn from POSIX. As
such, it may be missing. Check for that, and provide ersatz. It's
not a real replacement, because it doesn't do the special magic
getpass() is supposed to do: read from /dev/tty without echo.
This bypasses our existing getpass() for Windows. In contrast to the
portable getpass(), the Windows one tries to turn off echo, but that
doesn't work for me (MinGW & Wine). Remove it.
w32_writev_socket, w32_close_socket, getpass, w32_openfd,
w32_openhandle, w32_readv_handle, w32_close_handle,
sysdep_init, sysdep_stdin_init, w32_select, w32_signal_handler,
sigaction, stdin_read_thread, w32_ring_from_file_to_bounce_buf)
[_WIN32]: New w32 equivalent functions for POSIX functions.
(recvline, sendcmd, tcp_connect, hostconnect, getpass,
main, intr, play, ring_to_file, ring_from_file, doexecute,
doredir) [_WIN32]: Use new WIN32 equivalent functions.
(main) [_WIN32]: Add sysdep_init() to support system dependent
initialization for equivalence functions.
(play) [_WIN32]: Add sysdef_stdin_init() to support system
dependent initialization for reading stdin.
(recv_input, play) [_WIN32]: Replace the calls to ring_to_file()
and select() with WIN32 specific enhanced versions.
Makefile.in: update dependencies with new files.
Make.mk: Add using of getopt.c and getopt.h
from src/lib/w32 directory. Add getopt.c and getopt.h
to tar for client.
other. Ensure headers in include/ can be included in any order
(except for econfig-spec.h, which is special). New header types.h to
help avoid inclusion cycles. Sort include directives. Remove some
superflous includes.
strings bytewise unless the stream is buffered. Switch stdout to
line-buffered mode.
(login): Explicitly flush stdout, because Windows doesn't implement
line-buffering faithfully.
(login): New parameter utf8. If set, request option utf-8 from
server.
(expect, recvline): Split recvline() out of expect(). Replace or
remove some unhelpful diagnostics.
(eight_bit_clean): New.
(screen): If eight_bit_clean is set, highlighting is switched with
SO/SI. Else characters with MSB set are highlighted.
(main): New option -u to request UTF-8 and set eight_bit_clean.
linkage that is not in any other header in misc.h. Remove some
redundant declarations elsewhere.
(prompt, doredir, dopipe, doexecute, output, screen, parsedelay):
Static linkage.
thread entrypoints:
(lwpSelect, shutdown_sequence): Parameters didn't match thread entry
point prototype.
(lwpEntryPoint): Arguments didn't match thread entry point prototype.
Change linkage of functions without prototype declaration to static
where possible.
Remove some superflous declarations, replace others by suitable
includes.
effect. Replace calls by struct assignment where possible. Replace
clear buffer, copy string to buffer by strncpy(). Use assignment to
clear when that's clearer. Replace overlapping copy through bounce
buffer by memmove(). Replace rest by standard memset() and memcpy().
Also use sizeof() instead of literal array sizes for robustness, and
instead of symbolic array sizes for clarity.
