(message): Remove leftover code.
(get_server_config): Set emacs_pid. Don't allow Emacs to grab the focus yet;
emacsclient can still display an informational message before sending requests
to Emacs.
(main): Allow Emacs to grab the focus. Simplify message() call.
(readline): Check for double quote after #line.
(readline): sscanf could in principle return 2.
(TeX_commands): Use p++ (rather than *p++) to increment p.
(Lua_functions): Explicitely discard LOOKING_AT's return value.
(TEX_mode): Check getc retruns EOF.
File ended without newline causes infinite loop.
[WINDOWSNT]: Include <windows.h>.
(w32_check_console_app): New function.
(message): New function.
(decode_options, print_help_and_exit, fail, main, initialize_sockets,
get_server_config, set_tcp_socket, set_local_socket, set_socket):
Use message().
(decode_options): Don't get EMACS_SERVER_FILE here, it could override command
line options.
(decode_options) [! NO_SOCKETS_IN_FILE_SYSTEM]: Don't parse "-s" option.
(fail): Don't check for missing arguments, it is now done in set_socket.
(file_name_absolute_p): New function (loosely based on the one in fileio.c).
(initialize_sockets): Don't check for duplicate loading of Winsock.
(get_server_config): Only try relative paths in the default directory locations.
(set_tcp_socket): Don't call INITIALIZE(). Warn when connecting to a remote
server.
(set_socket): Call INITIALIZE(). Search explicit command-line arguments, then
environment variable EMACS_SERVER_FILE, then implicit socket paths, before
trying the alternate editor.
(main): Use file_name_absolute_p.
[!WINDOWSNT]: Include <netinet/in.h> if available.
[HAVE_SOCKETS]: Also require HAVE_INET_SOCKETS.
(IOCTL, IOCTL_BOOL_ARG): Remove.
(set_tcp_socket): Don't set the socket in blocking mode. Remove c_arg.
[!WINDOWSNT] <top level>: Include <netinet/in.h> and <sys/ioctl.h>.
(INVALID_SOCKET): Define.
(initialize_sockets): Put #endif at the right place.
(set_local_socket): Use progname, not argv[0].
