init.c

rxvt经典的linux下的终端.小巧实用

/*--------------------------------*-C-*---------------------------------*
 * File:	init.c
 *----------------------------------------------------------------------*
 * $Id: init.c,v 1.103 2002/12/04 05:21:29 gcw Exp $
 *
 * All portions of code are copyright by their respective author/s.
 * Copyright (c) 1992      John Bovey, University of Kent at Canterbury <[e-mail]>
 *				- original version
 * Copyright (c) 1994      Robert Nation <[e-mail]>
 * 				- extensive modifications
 * Copyright (c) 1998-2001 Geoff Wing <[e-mail]>
 * 				- extensive modifications
 * Copyright (c) 1999      D J Hawkey Jr <[e-mail]>
 *				- QNX support
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *---------------------------------------------------------------------*/
/*
 * Initialisation routines.
 */

#include "../config.h"		/* NECESSARY */
#include "rxvt.h"		/* NECESSARY */
#include "init.h"

#include <signal.h>

const char *const def_colorName[] = {
    COLOR_FOREGROUND,
    COLOR_BACKGROUND,
/* low-intensity colors */
    "Black",			/* 0: black             (#000000) */
#ifndef NO_BRIGHTCOLOR
    "Red3",			/* 1: red               (#CD0000) */
    "Green3",			/* 2: green             (#00CD00) */
    "Yellow3",			/* 3: yellow            (#CDCD00) */
    "Blue3",			/* 4: blue              (#0000CD) */
    "Magenta3",			/* 5: magenta           (#CD00CD) */
    "Cyan3",			/* 6: cyan              (#00CDCD) */
# ifdef XTERM_COLORS
    "Grey90",			/* 7: white             (#E5E5E5) */
# else
    "AntiqueWhite",		/* 7: white             (#FAEBD7) */
# endif
/* high-intensity colors */
# ifdef XTERM_COLORS
    "Grey30",			/* 8: bright black      (#4D4D4D) */
# else
    "Grey25",			/* 8: bright black      (#404040) */
# endif
#endif				/* NO_BRIGHTCOLOR */
    "Red",			/* 1/9: bright red      (#FF0000) */
    "Green",			/* 2/10: bright green   (#00FF00) */
    "Yellow",			/* 3/11: bright yellow  (#FFFF00) */
    "Blue",			/* 4/12: bright blue    (#0000FF) */
    "Magenta",			/* 5/13: bright magenta (#FF00FF) */
    "Cyan",			/* 6/14: bright cyan    (#00FFFF) */
    "White",			/* 7/15: bright white   (#FFFFFF) */
#ifdef TTY_256COLOR
    "rgb:00/00/00",		/* default 16-255 color table     */
    "rgb:00/00/2a",
    "rgb:00/00/55",
    "rgb:00/00/7f",
    "rgb:00/00/aa",
    "rgb:00/00/d4",
    "rgb:00/2a/00",
    "rgb:00/2a/2a",
    "rgb:00/2a/55",
    "rgb:00/2a/7f",
    "rgb:00/2a/aa",
    "rgb:00/2a/d4",
    "rgb:00/55/00",
    "rgb:00/55/2a",
    "rgb:00/55/55",
    "rgb:00/55/7f",
    "rgb:00/55/aa",
    "rgb:00/55/d4",
    "rgb:00/7f/00",
    "rgb:00/7f/2a",
    "rgb:00/7f/55",
    "rgb:00/7f/7f",
    "rgb:00/7f/aa",
    "rgb:00/7f/d4",
    "rgb:00/aa/00",
    "rgb:00/aa/2a",
    "rgb:00/aa/55",
    "rgb:00/aa/7f",
    "rgb:00/aa/aa",
    "rgb:00/aa/d4",
    "rgb:00/d4/00",
    "rgb:00/d4/2a",
    "rgb:00/d4/55",
    "rgb:00/d4/7f",
    "rgb:00/d4/aa",
    "rgb:00/d4/d4",
    "rgb:2a/00/00",
    "rgb:2a/00/2a",
    "rgb:2a/00/55",
    "rgb:2a/00/7f",
    "rgb:2a/00/aa",
    "rgb:2a/00/d4",
    "rgb:2a/2a/00",
    "rgb:2a/2a/2a",
    "rgb:2a/2a/55",
    "rgb:2a/2a/7f",
    "rgb:2a/2a/aa",
    "rgb:2a/2a/d4",
    "rgb:2a/55/00",
    "rgb:2a/55/2a",
    "rgb:2a/55/55",
    "rgb:2a/55/7f",
    "rgb:2a/55/aa",
    "rgb:2a/55/d4",
    "rgb:2a/7f/00",
    "rgb:2a/7f/2a",
    "rgb:2a/7f/55",
    "rgb:2a/7f/7f",
    "rgb:2a/7f/aa",
    "rgb:2a/7f/d4",
    "rgb:2a/aa/00",
    "rgb:2a/aa/2a",
    "rgb:2a/aa/55",
    "rgb:2a/aa/7f",
    "rgb:2a/aa/aa",
    "rgb:2a/aa/d4",
    "rgb:2a/d4/00",
    "rgb:2a/d4/2a",
    "rgb:2a/d4/55",
    "rgb:2a/d4/7f",
    "rgb:2a/d4/aa",
    "rgb:2a/d4/d4",
    "rgb:55/00/00",
    "rgb:55/00/2a",
    "rgb:55/00/55",
    "rgb:55/00/7f",
    "rgb:55/00/aa",
    "rgb:55/00/d4",
    "rgb:55/2a/00",
    "rgb:55/2a/2a",
    "rgb:55/2a/55",
    "rgb:55/2a/7f",
    "rgb:55/2a/aa",
    "rgb:55/2a/d4",
    "rgb:55/55/00",
    "rgb:55/55/2a",
    "rgb:55/55/55",
    "rgb:55/55/7f",
    "rgb:55/55/aa",
    "rgb:55/55/d4",
    "rgb:55/7f/00",
    "rgb:55/7f/2a",
    "rgb:55/7f/55",
    "rgb:55/7f/7f",
    "rgb:55/7f/aa",
    "rgb:55/7f/d4",
    "rgb:55/aa/00",
    "rgb:55/aa/2a",
    "rgb:55/aa/55",
    "rgb:55/aa/7f",
    "rgb:55/aa/aa",
    "rgb:55/aa/d4",
    "rgb:55/d4/00",
    "rgb:55/d4/2a",
    "rgb:55/d4/55",
    "rgb:55/d4/7f",
    "rgb:55/d4/aa",
    "rgb:55/d4/d4",
    "rgb:7f/00/00",
    "rgb:7f/00/2a",
    "rgb:7f/00/55",
    "rgb:7f/00/7f",
    "rgb:7f/00/aa",
    "rgb:7f/00/d4",
    "rgb:7f/2a/00",
    "rgb:7f/2a/2a",
    "rgb:7f/2a/55",
    "rgb:7f/2a/7f",
    "rgb:7f/2a/aa",
    "rgb:7f/2a/d4",
    "rgb:7f/55/00",
    "rgb:7f/55/2a",
    "rgb:7f/55/55",
    "rgb:7f/55/7f",
    "rgb:7f/55/aa",
    "rgb:7f/55/d4",
    "rgb:7f/7f/00",
    "rgb:7f/7f/2a",
    "rgb:7f/7f/55",
    "rgb:7f/7f/7f",
    "rgb:7f/7f/aa",
    "rgb:7f/7f/d4",
    "rgb:7f/aa/00",
    "rgb:7f/aa/2a",
    "rgb:7f/aa/55",
    "rgb:7f/aa/7f",
    "rgb:7f/aa/aa",
    "rgb:7f/aa/d4",
    "rgb:7f/d4/00",
    "rgb:7f/d4/2a",
    "rgb:7f/d4/55",
    "rgb:7f/d4/7f",
    "rgb:7f/d4/aa",
    "rgb:7f/d4/d4",
    "rgb:aa/00/00",
    "rgb:aa/00/2a",
    "rgb:aa/00/55",
    "rgb:aa/00/7f",
    "rgb:aa/00/aa",
    "rgb:aa/00/d4",
    "rgb:aa/2a/00",
    "rgb:aa/2a/2a",
    "rgb:aa/2a/55",
    "rgb:aa/2a/7f",
    "rgb:aa/2a/aa",
    "rgb:aa/2a/d4",
    "rgb:aa/55/00",
    "rgb:aa/55/2a",
    "rgb:aa/55/55",
    "rgb:aa/55/7f",
    "rgb:aa/55/aa",
    "rgb:aa/55/d4",
    "rgb:aa/7f/00",
    "rgb:aa/7f/2a",
    "rgb:aa/7f/55",
    "rgb:aa/7f/7f",
    "rgb:aa/7f/aa",
    "rgb:aa/7f/d4",
    "rgb:aa/aa/00",
    "rgb:aa/aa/2a",
    "rgb:aa/aa/55",
    "rgb:aa/aa/7f",
    "rgb:aa/aa/aa",
    "rgb:aa/aa/d4",
    "rgb:aa/d4/00",
    "rgb:aa/d4/2a",
    "rgb:aa/d4/55",
    "rgb:aa/d4/7f",
    "rgb:aa/d4/aa",
    "rgb:aa/d4/d4",
    "rgb:d4/00/00",
    "rgb:d4/00/2a",
    "rgb:d4/00/55",
    "rgb:d4/00/7f",
    "rgb:d4/00/aa",
    "rgb:d4/00/d4",
    "rgb:d4/2a/00",
    "rgb:d4/2a/2a",
    "rgb:d4/2a/55",
    "rgb:d4/2a/7f",
    "rgb:d4/2a/aa",
    "rgb:d4/2a/d4",
    "rgb:d4/55/00",
    "rgb:d4/55/2a",
    "rgb:d4/55/55",
    "rgb:d4/55/7f",
    "rgb:d4/55/aa",
    "rgb:d4/55/d4",
    "rgb:d4/7f/00",
    "rgb:d4/7f/2a",
    "rgb:d4/7f/55",
    "rgb:d4/7f/7f",
    "rgb:d4/7f/aa",
    "rgb:d4/7f/d4",
    "rgb:d4/aa/00",
    "rgb:d4/aa/2a",
    "rgb:d4/aa/55",
    "rgb:d4/aa/7f",
    "rgb:d4/aa/aa",
    "rgb:d4/aa/d4",
    "rgb:d4/d4/00",
    "rgb:d4/d4/2a",
    "rgb:d4/d4/55",
    "rgb:d4/d4/7f",
    "rgb:d4/d4/aa",
    "rgb:d4/d4/d4",
    "rgb:08/08/08",
    "rgb:12/12/12",
    "rgb:1c/1c/1c",
    "rgb:26/26/26",
    "rgb:30/30/30",
    "rgb:3a/3a/3a",
    "rgb:44/44/44",
    "rgb:4e/4e/4e",
    "rgb:58/58/58",
    "rgb:62/62/62",
    "rgb:6c/6c/6c",
    "rgb:76/76/76",
    "rgb:80/80/80",
    "rgb:8a/8a/8a",
    "rgb:94/94/94",
    "rgb:9e/9e/9e",
    "rgb:a8/a8/a8",
    "rgb:b2/b2/b2",
    "rgb:bc/bc/bc",
    "rgb:c6/c6/c6",
    "rgb:d0/d0/d0",
    "rgb:da/da/da",
    "rgb:e4/e4/e4",
    "rgb:ee/ee/ee",
#endif
#ifndef NO_CURSORCOLOR
    COLOR_CURSOR_BACKGROUND,
    COLOR_CURSOR_FOREGROUND,
#endif				/* ! NO_CURSORCOLOR */
    NULL,			/* Color_pointer                  */
    NULL,			/* Color_border                   */
#ifndef NO_BOLD_UNDERLINE_REVERSE
    NULL,			/* Color_BD                       */
    NULL,			/* Color_UL                       */
    NULL,			/* Color_RV                       */
#endif				/* ! NO_BOLD_UNDERLINE_REVERSE */
#ifdef OPTION_HC
    NULL,
#endif
#ifdef KEEP_SCROLLCOLOR
    COLOR_SCROLLBAR,
    COLOR_SCROLLTROUGH,
#endif				/* KEEP_SCROLLCOLOR */
};

const char *const xa_names[NUM_XA] = {
    "COMPOUND_TEXT",
    "MULTIPLE",	
    "TARGETS",	
    "TEXT",
    "TIMESTAMP",
    "VT_SELECTION",
    "INCR",
    "WM_DELETE_WINDOW",
#ifdef TRANSPARENT
    "_XROOTPMAP_ID",
#endif
#ifdef OFFIX_DND
    "DndProtocol",
    "DndSelection",
#endif
    "CLIPBOARD"
};

/*----------------------------------------------------------------------*/
/* substitute system functions */
#if defined(__svr4__) && ! defined(_POSIX_VERSION)
/* INTPROTO */
int
rxvt_getdtablesize(void)
{
    struct rlimit   rlim;

    getrlimit(RLIMIT_NOFILE, &rlim);
    return rlim.rlim_cur;
}
#endif
/*----------------------------------------------------------------------*/
/* EXTPROTO */
int
rxvt_init_vars(rxvt_t *r)
{
    struct rxvt_hidden *h;

#ifndef NULLS_ARE_NOT_ZEROS
    MEMSET(r, 0, sizeof(rxvt_t));
#endif
    h = r->h = (struct rxvt_hidden *)rxvt_calloc(1, sizeof(struct rxvt_hidden));

    r->PixColors = (Pixel *)rxvt_malloc(sizeof(Pixel) * TOTAL_COLORS);
    if (r->h == NULL || r->PixColors == NULL)
	return -1;
#ifdef NULLS_ARE_NOT_ZEROS
    r->Xdisplay = NULL;
    r->TermWin.fontset = NULL;
#ifndef NO_BOLDFONT
    r->TermWin.boldFont_loaded = NULL;
#endif
    r->h->ttydev = NULL;
    h->xa[XA_COMPOUND_TEXT] = h->xa[XA_MULTIPLE] = h->xa[XA_TARGETS] =
	h->xa[XA_TEXT] = h->xa[XA_TIMESTAMP] = h->xa[XA_VT_SELECTION] =
	h->xa[XA_INCR] = NULL;
    h->locale = NULL;
# ifdef MENUBAR
    h->menubarGC = None;
    h->BuildMenu = NULL;	/* the menu currently being built */
#  if (MENUBAR_MAX > 1)
    h->CurrentBar = NULL;
#  endif			/* (MENUBAR_MAX > 1) */
# endif
# ifdef USE_XIM
    h->Input_Context = NULL;
# endif
    h->v_bufstr = NULL;
# ifdef RXVT_GRAPHICS
    h->gr_root = NULL;
    h->gr_last_id = None;
# endif
    h->buffer = NULL;
    h->compose.compose_ptr = NULL;
#endif				/* NULLS_ARE_NOT_ZEROS */

#if defined(XPM_BACKGROUND) || defined(TRANSPARENT)
    r->TermWin.pixmap = None;
#endif
#ifdef UTMP_SUPPORT
    h->next_utmp_action = SAVE;
#endif
#ifndef NO_SETOWNER_TTYDEV
    h->next_tty_action = SAVE;
#endif
    h->MEvent.time = CurrentTime;
    h->MEvent.button = AnyButton;
    r->Options = DEFAULT_OPTIONS;
    h->want_refresh = 1;
    h->cmd_pid = -1;
    r->cmd_fd = r->tty_fd = r->Xfd = -1;
    h->PrivateModes = h->SavedModes = PrivMode_Default;
    r->TermWin.focus = 1;
    r->TermWin.ncol = 80;
    r->TermWin.nrow = 24;
    r->TermWin.int_bwidth = INTERNALBORDERWIDTH;
    r->TermWin.ext_bwidth = EXTERNALBORDERWIDTH;
    r->TermWin.lineSpace = LINESPACE;
    r->TermWin.saveLines = SAVELINES;
    r->numPixColors = TOTAL_COLORS;
#ifndef NO_NEW_SELECTION
    r->selection_style = NEW_SELECT;
#else
    r->selection_style = OLD_SELECT;
#endif
#ifndef NO_BRIGHTCOLOR
    h->colorfgbg = DEFAULT_RSTYLE;
#endif
#if defined (HOTKEY_CTRL) || defined (HOTKEY_META)
    h->ks_bigfont = XK_greater;
    h->ks_smallfont = XK_less;
#endif
#ifdef GREEK_SUPPORT
    h->ks_greekmodeswith = GREEK_KEYBOARD_MODESWITCH;
#endif
    h->refresh_limit = 1;
    h->refresh_type = SLOW_REFRESH;
    h->prev_nrow = h->prev_ncol = 0;
#ifdef MULTICHAR_SET
# ifdef MULTICHAR_ENCODING
    r->encoding_method = MULTICHAR_ENCODING;
# endif
    h->multichar_decode = rxvt_euc2jis;
#endif
    h->oldcursor.row = h->oldcursor.col = -1;
#ifdef XPM_BACKGROUND
/*  h->bgPixmap.w = h->bgPixmap.h = 0; */
    h->bgPixmap.x = h->bgPixmap.y = 50;
    h->bgPixmap.pixmap = None;
#endif
    h->last_bot = h->last_state = -1;
#ifdef MENUBAR
    h->menu_readonly = 1;
# if !(MENUBAR_MAX > 1)
    h->CurrentBar = &(h->BarList);
# endif				/* (MENUBAR_MAX > 1) */
#endif
    return 0;
}

/* EXTPROTO */
void
rxvt_init_secondary(rxvt_t *r)
{
#ifdef TTY_GID_SUPPORT
    struct group   *gr = getgrnam("tty");

    if (gr) {		/* change group ownership of tty to "tty" */
	r->h->ttymode = S_IRUSR | S_IWUSR | S_IWGRP;
	r->h->ttygid = gr->gr_gid;
    } else
#endif				/* TTY_GID_SUPPORT */
    {
	r->h->ttymode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH;
	r->h->ttygid = getgid();
    }
#if defined(HAVE_XSETLOCALE) || defined(HAVE_SETLOCALE)
    r->h->locale = setlocale(LC_CTYPE, "");
#endif
}

/*----------------------------------------------------------------------*/
/* EXTPROTO */
const char    **
rxvt_init_resources(rxvt_t *r, int argc, const char *const *argv)
{
    int             i, r_argc;
    char           *val;
    const char    **cmd_argv, **r_argv;
    const char    **rs;

/*
 * Look for -exec option.  Find => split and make cmd_argv[] of command args
 */
    for (r_argc = 0; r_argc < argc; r_argc++)
	if (!STRCMP(argv[r_argc], "-e") || !STRCMP(argv[r_argc], "-exec"))
	    break;
    r_argv = (const char **)rxvt_malloc(sizeof(char *) * (r_argc + 1));

    for (i = 0; i < r_argc; i++)
	r_argv[i] = (const char *)argv[i];
    r_argv[i] = NULL;
    if (r_argc == argc)
	cmd_argv = NULL;
    else {
	cmd_argv = (const char **)rxvt_malloc(sizeof(char *) * (argc - r_argc));

	for (i = 0; i < argc - r_argc - 1; i++)
	    cmd_argv[i] = (const char *)argv[i + r_argc + 1];
	cmd_argv[i] = NULL;
    }

/* clear all resources */
    rs = r->h->rs;
    for (i = 0; i < NUM_RESOURCES;)
	rs[i++] = NULL;

    rs[Rs_name] = rxvt_r_basename(argv[0]);
/*
 * Open display, get options/resources and create the window
 */
    if ((rs[Rs_display_name] = getenv("DISPLAY")) == NULL)
	rs[Rs_display_name] = ":0";

    rxvt_get_options(r, r_argc, r_argv);
    free(r_argv);

#ifdef LOCAL_X_IS_UNIX
    if (rs[Rs_display_name][0] == ':') {
	val = rxvt_malloc(5 + STRLEN(rs[Rs_display_name]));
	STRCPY(val, "unix");
	STRCAT(val, rs[Rs_display_name]);
	r->Xdisplay = XOpenDisplay(val);
	free(val);
    }
#endif

    if (r->Xdisplay == NULL
	&& (r->Xdisplay = XOpenDisplay(rs[Rs_display_name])) == NULL) {
	rxvt_print_error("can't open display %s", rs[Rs_display_name]);
	exit(EXIT_FAILURE);
    }

    rxvt_extract_resources(r, r->Xdisplay, rs[Rs_name]);

/*
 * set any defaults not already set
 */
    if (cmd_argv && cmd_argv[0]) {