main.c

源码,标准c++用力

    {"ttyModes", "TtyModes", XtRString, sizeof(char *),
	offset(tty_modes), XtRString, (caddr_t) NULL},
    {"utmpInhibit", "UtmpInhibit", XtRBoolean, sizeof (Boolean),
	offset(utmpInhibit), XtRString, "false"},
    {"sunFunctionKeys", "SunFunctionKeys", XtRBoolean, sizeof (Boolean),
	offset(sunFunctionKeys), XtRString, "false"},
    {"waitForMap", "WaitForMap", XtRBoolean, sizeof (Boolean),
        offset(wait_for_map), XtRString, "false"},
    {"useInsertMode", "UseInsertMode", XtRBoolean, sizeof (Boolean),
        offset(useInsertMode), XtRString, "false"},
};
#undef offset

static char *fallback_resources[] = {
    "XTerm*SimpleMenu*menuLabel.vertSpace: 100",
    "XTerm*SimpleMenu*HorizontalMargins: 16",
    "XTerm*SimpleMenu*Sme.height: 16",
    "XTerm*SimpleMenu*Cursor: left_ptr",
    "XTerm*mainMenu.Label:  Main Options (no app-defaults)",
    "XTerm*vtMenu.Label:  VT Options (no app-defaults)",
    "XTerm*fontMenu.Label:  VT Fonts (no app-defaults)",
    "XTerm*tekMenu.Label:  Tek Options (no app-defaults)",
    NULL
};

/* Command line options table.  Only resources are entered here...there is a
   pass over the remaining options after XrmParseCommand is let loose. */

static XrmOptionDescRec optionDescList[] = {
{"-geometry",	"*vt100.geometry",XrmoptionSepArg,	(caddr_t) NULL},
{"-132",	"*c132",	XrmoptionNoArg,		(caddr_t) "on"},
{"+132",	"*c132",	XrmoptionNoArg,		(caddr_t) "off"},
{"-ah",		"*alwaysHighlight", XrmoptionNoArg,	(caddr_t) "on"},
{"+ah",		"*alwaysHighlight", XrmoptionNoArg,	(caddr_t) "off"},
{"-b",		"*internalBorder",XrmoptionSepArg,	(caddr_t) NULL},
{"-cb",		"*cutToBeginningOfLine", XrmoptionNoArg, (caddr_t) "off"},
{"+cb",		"*cutToBeginningOfLine", XrmoptionNoArg, (caddr_t) "on"},
{"-cc",		"*charClass",	XrmoptionSepArg,	(caddr_t) NULL},
{"-cn",		"*cutNewline",	XrmoptionNoArg,		(caddr_t) "off"},
{"+cn",		"*cutNewline",	XrmoptionNoArg,		(caddr_t) "on"},
{"-cr",		"*cursorColor",	XrmoptionSepArg,	(caddr_t) NULL},
{"-cu",		"*curses",	XrmoptionNoArg,		(caddr_t) "on"},
{"+cu",		"*curses",	XrmoptionNoArg,		(caddr_t) "off"},
{"-dc",		"*dynamicColors",XrmoptionNoArg,	(caddr_t) "off"},
{"+dc", 	"*dynamicColors",XrmoptionNoArg,	(caddr_t) "on"},
{"-e",		NULL,		XrmoptionSkipLine,	(caddr_t) NULL},
{"-fb",		"*boldFont",	XrmoptionSepArg,	(caddr_t) NULL},
{"-j",		"*jumpScroll",	XrmoptionNoArg,		(caddr_t) "on"},
{"+j",		"*jumpScroll",	XrmoptionNoArg,		(caddr_t) "off"},
/* parse logging options anyway for compatibility */
{"-l",		"*logging",	XrmoptionNoArg,		(caddr_t) "on"},
{"+l",		"*logging",	XrmoptionNoArg,		(caddr_t) "off"},
{"-lf",		"*logFile",	XrmoptionSepArg,	(caddr_t) NULL},
{"-ls",		"*loginShell",	XrmoptionNoArg,		(caddr_t) "on"},
{"+ls",		"*loginShell",	XrmoptionNoArg,		(caddr_t) "off"},
{"-mb",		"*marginBell",	XrmoptionNoArg,		(caddr_t) "on"},
{"+mb",		"*marginBell",	XrmoptionNoArg,		(caddr_t) "off"},
{"-mc",		"*multiClickTime", XrmoptionSepArg,	(caddr_t) NULL},
{"-ms",		"*pointerColor",XrmoptionSepArg,	(caddr_t) NULL},
{"-nb",		"*nMarginBell",	XrmoptionSepArg,	(caddr_t) NULL},
{"-rw",		"*reverseWrap",	XrmoptionNoArg,		(caddr_t) "on"},
{"+rw",		"*reverseWrap",	XrmoptionNoArg,		(caddr_t) "off"},
{"-aw",		"*autoWrap",	XrmoptionNoArg,		(caddr_t) "on"},
{"+aw",		"*autoWrap",	XrmoptionNoArg,		(caddr_t) "off"},
{"-s",		"*multiScroll",	XrmoptionNoArg,		(caddr_t) "on"},
{"+s",		"*multiScroll",	XrmoptionNoArg,		(caddr_t) "off"},
{"-sb",		"*scrollBar",	XrmoptionNoArg,		(caddr_t) "on"},
{"+sb",		"*scrollBar",	XrmoptionNoArg,		(caddr_t) "off"},
{"-sf",		"*sunFunctionKeys", XrmoptionNoArg,	(caddr_t) "on"},
{"+sf",		"*sunFunctionKeys", XrmoptionNoArg,	(caddr_t) "off"},
{"-si",		"*scrollTtyOutput",	XrmoptionNoArg,		(caddr_t) "off"},
{"+si",		"*scrollTtyOutput",	XrmoptionNoArg,		(caddr_t) "on"},
{"-sk",		"*scrollKey",	XrmoptionNoArg,		(caddr_t) "on"},
{"+sk",		"*scrollKey",	XrmoptionNoArg,		(caddr_t) "off"},
{"-sl",		"*saveLines",	XrmoptionSepArg,	(caddr_t) NULL},
{"-t",		"*tekStartup",	XrmoptionNoArg,		(caddr_t) "on"},
{"+t",		"*tekStartup",	XrmoptionNoArg,		(caddr_t) "off"},
{"-tm",		"*ttyModes",	XrmoptionSepArg,	(caddr_t) NULL},
{"-tn",		"*termName",	XrmoptionSepArg,	(caddr_t) NULL},
{"-ut",		"*utmpInhibit",	XrmoptionNoArg,		(caddr_t) "on"},
{"+ut",		"*utmpInhibit",	XrmoptionNoArg,		(caddr_t) "off"},
{"-im",		"*useInsertMode", XrmoptionNoArg,	(caddr_t) "on"},
{"+im",		"*useInsertMode", XrmoptionNoArg,	(caddr_t) "off"},
{"-vb",		"*visualBell",	XrmoptionNoArg,		(caddr_t) "on"},
{"+vb",		"*visualBell",	XrmoptionNoArg,		(caddr_t) "off"},
{"-wf",		"*waitForMap",	XrmoptionNoArg,		(caddr_t) "on"},
{"+wf",		"*waitForMap",	XrmoptionNoArg,		(caddr_t) "off"},
/* bogus old compatibility stuff for which there are
   standard XtAppInitialize options now */
{"%",		"*tekGeometry",	XrmoptionStickyArg,	(caddr_t) NULL},
{"#",		".iconGeometry",XrmoptionStickyArg,	(caddr_t) NULL},
{"-T",		"*title",	XrmoptionSepArg,	(caddr_t) NULL},
{"-n",		"*iconName",	XrmoptionSepArg,	(caddr_t) NULL},
{"-r",		"*reverseVideo",XrmoptionNoArg,		(caddr_t) "on"},
{"+r",		"*reverseVideo",XrmoptionNoArg,		(caddr_t) "off"},
{"-rv",		"*reverseVideo",XrmoptionNoArg,		(caddr_t) "on"},
{"+rv",		"*reverseVideo",XrmoptionNoArg,		(caddr_t) "off"},
{"-w",		".borderWidth", XrmoptionSepArg,	(caddr_t) NULL},
};

static struct _options {
  char *opt;
  char *desc;
} options[] = {
{ "-help",                 "print out this message" },
{ "-display displayname",  "X server to contact" },
{ "-geometry geom",        "size (in characters) and position" },
{ "-/+rv",                 "turn on/off reverse video" },
{ "-bg color",             "background color" },
{ "-fg color",             "foreground color" },
{ "-bd color",             "border color" },
{ "-bw number",            "border width in pixels" },
{ "-fn fontname",          "normal text font" },
{ "-iconic",               "start iconic" },
{ "-name string",          "client instance, icon, and title strings" },
{ "-title string",         "title string" },
{ "-xrm resourcestring",   "additional resource specifications" },
{ "-/+132",                "turn on/off column switch inhibiting" },
{ "-/+ah",                 "turn on/off always highlight" },
{ "-b number",             "internal border in pixels" },
{ "-/+cb",                 "turn on/off cut-to-beginning-of-line inhibit" },
{ "-cc classrange",        "specify additional character classes" },
{ "-/+cn",                 "turn on/off cut newline inhibit" },
{ "-cr color",             "text cursor color" },
{ "-/+cu",                 "turn on/off curses emulation" },
{ "-fb fontname",          "bold text font" },
{ "-/+im",		   "use insert mode for TERMCAP" },
{ "-/+j",                  "turn on/off jump scroll" },
#ifdef ALLOWLOGGING
{ "-/+l",                  "turn on/off logging" },
{ "-lf filename",          "logging filename" },
#else
{ "-/+l",                  "turn on/off logging (not supported)" },
{ "-lf filename",          "logging filename (not supported)" },
#endif
{ "-/+ls",                 "turn on/off login shell" },
{ "-/+mb",                 "turn on/off margin bell" },
{ "-mc milliseconds",      "multiclick time in milliseconds" },
{ "-ms color",             "pointer color" },
{ "-nb number",            "margin bell in characters from right end" },
{ "-/+aw",                 "turn on/off auto wraparound" },
{ "-/+rw",                 "turn on/off reverse wraparound" },
{ "-/+s",                  "turn on/off multiscroll" },
{ "-/+sb",                 "turn on/off scrollbar" },
{ "-/+sf",                 "turn on/off Sun Function Key escape codes" },
{ "-/+si",                 "turn on/off scroll-on-tty-output inhibit" },
{ "-/+sk",                 "turn on/off scroll-on-keypress" },
{ "-sl number",            "number of scrolled lines to save" },
{ "-/+t",                  "turn on/off Tek emulation window" },
{ "-tm string",            "terminal mode keywords and characters" },
{ "-tn name",              "TERM environment variable name" },
#ifdef UTMP
{ "-/+ut",                 "turn on/off utmp inhibit" },
#else
{ "-/+ut",                 "turn on/off utmp inhibit (not supported)" },
#endif
{ "-/+vb",                 "turn on/off visual bell" },
{ "-/+wf",                 "turn on/off wait for map before command exec" },
{ "-e command args ...",   "command to execute" },
{ "%geom",                 "Tek window geometry" },
{ "#geom",                 "icon window geometry" },
{ "-T string",             "title name for window" },
{ "-n string",             "icon name for window" },
#ifdef TIOCCONS
{ "-C",                    "intercept console messages" },
#else
{ "-C",                    "intercept console messages (not supported)" },
#endif
{ "-Sxxd",                 "slave mode on \"ttyxx\", file descriptor \"d\"" },
{ "-/+dc",				"turn off/on dynamic color selection" },
{ "-jobs",				"manual job control" },
{ "-version", 			"display version information" },
{ NULL, NULL }};

static char *message[] = {
"Fonts must be fixed width and, if both normal and bold are specified, must",
"have the same size.  If only a normal font is specified, it will be used for",
"both normal and bold text (by doing overstriking).  The -e option, if given,",
"must be appear at the end of the command line, otherwise the user's default",
"shell will be started.  Options that start with a plus sign (+) restore the",
"default.",
NULL};

static void Syntax (badOption)
    char *badOption;
{
    struct _options *opt;
    int col;

    fprintf (stderr, "%s:  bad command line option \"%s\"\r\n\n",
	     ProgramName, badOption);

    fprintf (stderr, "usage:  %s", ProgramName);
    col = 8 + strlen(ProgramName);
    for (opt = options; opt->opt; opt++) {
	int len = 3 + strlen(opt->opt);	 /* space [ string ] */
	if (col + len > 79) {
	    fprintf (stderr, "\r\n   ");  /* 3 spaces */
	    col = 3;
	}
	fprintf (stderr, " [%s]", opt->opt);
	col += len;
    }

    fprintf (stderr, "\r\n\nType %s -help for a full description.\r\n\n",
	     ProgramName);
    exit (1);
}

static void Help ()
{
    struct _options *opt;
    char **cpp;

    fprintf (stderr, "usage:\n        %s [-options ...] [-e command args]\n\n",
	     ProgramName);
    fprintf (stderr, "where options include:\n");
    for (opt = options; opt->opt; opt++) {
	fprintf (stderr, "    %-28s %s\n", opt->opt, opt->desc);
    }

    putc ('\n', stderr);
    for (cpp = message; *cpp; cpp++) {
	fputs (*cpp, stderr);
	putc ('\n', stderr);
    }
    putc ('\n', stderr);

    exit (0);
}

#ifdef TIOCCONS
/* ARGSUSED */
static Boolean
ConvertConsoleSelection(w, selection, target, type, value, length, format)
    Widget w;
    Atom *selection, *target, *type;
    XtPointer *value;
    unsigned long *length;
    int *format;
{
#ifdef DEBUGGING
	fprintf(stderr, "entered ConvertConsoleSelection\n");
#endif
    /* we don't save console output, so can't offer it */
    return False;
}
#endif /* TIOCCONS */


extern WidgetClass xtermWidgetClass;

Arg ourTopLevelShellArgs[] = {
	{ XtNallowShellResize, (XtArgVal) TRUE },	
	{ XtNinput, (XtArgVal) TRUE },
};
int number_ourTopLevelShellArgs = 2;
	
XtAppContext app_con;
Widget toplevel;
Bool waiting_for_initial_map;

extern void do_hangup();

/*
 * DeleteWindow(): Action proc to implement ICCCM delete_window.
 */
/* ARGSUSED */
void
DeleteWindow(w, event, params, num_params)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *num_params;
{
#ifdef DEBUGGING
	fprintf(stderr, "entered DeleteWindow\n");
#endif
  if (w == toplevel)
    if (term->screen.Tshow)
      hide_vt_window();
    else
      do_hangup(w);
  else
    if (term->screen.Vshow)
      hide_tek_window();
    else
      do_hangup(w);
}

/* ARGSUSED */
void
KeyboardMapping(w, event, params, num_params)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *num_params;
{
#ifdef DEBUGGING
	fprintf(stderr, "entered KeyboardMapping\n");
#endif
    switch (event->type) {
       case MappingNotify:
	  XRefreshKeyboardMapping(&event->xmapping);
	  break;
    }
#ifdef DEBUGGING
	fprintf(stderr, "left KeyboardMapping\n");
#endif
}

XtActionsRec actionProcs[] = {
    "DeleteWindow", DeleteWindow,
    "KeyboardMapping", KeyboardMapping,
};

Atom wm_delete_window;

#ifdef GAPING_SECURITY_HOLE
	int resetuid = 1;	/* Reset uid when spawning? */
#endif

main (argc, argv)
int argc;
char **argv;
{
	register TScreen *screen;
	register int pty;
	int Xsocket, mode;
	char *base_name();
	int xerror(), xioerror();
	int jobs=0;		/* Automatic/manual job control.  -- JLM */

#ifdef DEBUGGING
	fprintf(stderr, "entered Main\n");
#endif

	ProgramName = argv[0];

	ttydev = (char *) malloc (strlen (TTYDEV) + 1);
	ptydev = (char *) malloc (strlen (PTYDEV) + 1);
	if (!ttydev || !ptydev) {
	    fprintf (stderr, 
	    	     "%s:  unable to allocate memory for ttydev or ptydev\n",
		     ProgramName);
	    exit (1);
	}
	strcpy (ttydev, TTYDEV);
	strcpy (ptydev, PTYDEV);

#ifdef USE_SYSV_TERMIO
	/* Initialization is done here rather than above in order
	** to prevent any assumptions about the order of the contents
	** of the various terminal structures (which may change from
	** implementation to implementation).
	*/
#if defined(macII) || defined(ATT) || defined(CRAY)
	d_tio.c_iflag = ICRNL|IXON;
	d_tio.c_oflag = OPOST|ONLCR|TAB3;
    	d_tio.c_cflag = B9600|CS8|CREAD|PARENB|HUPCL;
    	d_tio.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK;

#ifndef USE_TERMIOS
	d_tio.c_line = 0;
#endif

	d_tio.c_cc[VINTR] = CINTR;
	d_tio.c_cc[VQUIT] = CQUIT;
	d_tio.c_cc[VERASE] = CERASE;
	d_tio.c_cc[VKILL] = CKILL;
    	d_tio.c_cc[VEOF] = CEOF;
	d_tio.c_cc[VEOL] = CNUL;
	d_tio.c_cc[VEOL2] = CNUL;
	d_tio.c_cc[VSWTCH] = CNUL;

#ifdef USE_TERMIOS
	d_tio.c_cc[VSUSP] = CSUSP;
	d_tio.c_cc[VDSUSP] = CDSUSP;
	d_tio.c_cc[VREPRINT] = CNUL;
	d_tio.c_cc[VDISCARD] = CNUL;
	d_tio.c_cc[VWERASE] = CNUL;
	d_tio.c_cc[VLNEXT] = CNUL;
#endif
#ifdef TIOCSLTC
        d_ltc.t_suspc = CSUSP;		/* t_suspc */
        d_ltc.t_dsuspc = CDSUSP;	/* t_dsuspc */
        d_ltc.t_rprntc = 0;		/* reserved...*/
        d_ltc.t_flushc = 0;
        d_ltc.t_werasc = 0;
        d_ltc.t_lnextc = 0;
#endif /* TIOCSLTC */
#ifdef TIOCLSET
	d_lmode = 0;
#endif /* TIOCLSET */
#else  /* else !macII */
	d_tio.c_iflag = ICRNL|IXON;
	d_tio.c_oflag = OPOST|ONLCR
#ifndef BSD_TERMIOS		/* NetBSD doesn't have TAB3, uses OXTABS   -- JLM */
					|TAB3
#else
					|OXTABS
#endif
					;
#ifdef BAUD_0
    	d_tio.c_cflag = CS8|CREAD|PARENB|HUPCL;
#else	/* !BAUD_0 */
    	d_tio.c_cflag = B9600|CS8|CREAD|PARENB|HUPCL;
#endif	/* !BAUD_0 */
    	d_tio.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK;
#ifndef BSD_TERMIOS		/* NetBSD doesn't have c_line   -- JLM */
	d_tio.c_line = 0;
#endif
	d_tio.c_cc[VINTR] = 0x7f;		/* DEL  */
	d_tio.c_cc[VQUIT] = '\\' & 0x3f;	/* '^\'	*/
	d_tio.c_cc[VERASE] = '#';		/* '#'	*/
	d_tio.c_cc[VKILL] = '@';		/* '@'	*/
    	d_tio.c_cc[VEOF] = 'D' & 0x3f;		/* '^D'	*/
	d_tio.c_cc[VEOL] = '@' & 0x3f;		/* '^@'	*/
#ifdef VSWTCH
	d_tio.c_cc[VSWTCH] = '@' & 0x3f;	/* '^@'	*/
#endif	/* VSWTCH */
	/* now, try to inherit tty settings */
	{
	    int i;

	    for (i = 0; i <= 2; i++) {
		struct termio deftio;
		if (ioctl (i, TCGETA, &deftio) == 0) {
		    d_tio.c_cc[VINTR] = deftio.c_cc[VINTR];
		    d_tio.c_cc[VQUIT] = deftio.c_cc[VQUIT];
		    d_tio.c_cc[VERASE] = deftio.c_cc[VERASE];
		    d_tio.c_cc[VKILL] = deftio.c_cc[VKILL];
		    d_tio.c_cc[VEOF] = deftio.c_cc[VEOF];
		    d_tio.c_cc[VEOL] = deftio.c_cc[VEOL];
#ifdef VSWTCH
		    d_tio.c_cc[VSWTCH] = deftio.c_cc[VSWTCH];
#endif /* VSWTCH */
		    break;
		}
	    }
	}
#ifdef TIOCSLTC
        d_ltc.t_suspc = '\000';		/* t_suspc */
        d_ltc.t_dsuspc = '\000';	/* t_dsuspc */
        d_ltc.t_rprntc = '\377';	/* reserved...*/
        d_ltc.t_flushc = '\377';
        d_ltc.t_werasc = '\377';
        d_ltc.t_lnextc = '\377';
#endif	/* TIOCSLTC */
#ifdef USE_TERMIOS
	d_tio.c_cc[VSUSP] = '\000';
	d_tio.c_cc[VDSUSP] = '\000';
	d_tio.c_cc[VREPRINT] = '\377';
	d_tio.c_cc[VDISCARD] = '\377';
	d_tio.c_cc[VWERASE] = '\377';
	d_tio.c_cc[VLNEXT] = '\377';
#endif
#ifdef TIOCLSET
	d_lmode = 0;
#endif	/* TIOCLSET */
#endif  /* macII */
#endif	/* USE_SYSV_TERMIO */

	/* Init the Toolkit. */
	toplevel = XtAppInitialize (&app_con, "XTerm", 
				    optionDescList, XtNumber(optionDescList), 
				    &argc, argv, fallback_resources, NULL, 0);

	XtGetApplicationResources(toplevel, (XtPointer) &resource,
				  application_resources,
				  XtNumber(application_resources), NULL, 0);

	waiting_for_initial_map = resource.wait_for_map;

	/*
	 * ICCCM delete_window.