init.c

multi-tabed terminal based on rxvt

    "rgbi:1/1/1",
# endif	/* XTERM_COLORS */
    "rgb:08/08/08", /* xterm, rxvt, mrxvt use the same greyscale ramp */
    "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	/* TTY_256COLOR */
#ifndef NO_CURSORCOLOR
    COLOR_CURSOR_BACKGROUND,
    COLOR_CURSOR_FOREGROUND,
#endif		    /* ! NO_CURSORCOLOR */
    NULL,	    /* Color_pointer		    */
    NULL,	    /* Color_border		    */
    NULL,	    /* Color_ufbg		    */
#ifndef NO_BOLD_UNDERLINE_REVERSE
    NULL,	    /* Color_BD			    */
    NULL,	    /* Color_UL			    */
    NULL,	    /* Color_RV			    */
#endif		    /* ! NO_BOLD_UNDERLINE_REVERSE  */
#ifdef OPTION_HC
    NULL,	    /* Color_HL			    */
#endif
#ifdef KEEP_SCROLLCOLOR
    COLOR_SCROLLBAR,
    COLOR_SCROLLTROUGH,
#endif		    /* KEEP_SCROLLCOLOR */
#ifdef TINTING_SUPPORT
# ifdef HAVE_LIBXRENDER
    "rgb:00/00/00",
# else
    "rgb:ff/ff/ff",
# endif
#endif
};


/*
** MUST sync with rxvt.h:enum XA_XXXX
*/
const char *const xa_names[NUM_XA] = {
    "COMPOUND_TEXT",
    "UTF8_STRING",
    "TEXT",
    "MULTIPLE",	
    "TARGETS",	
    "TIMESTAMP",
    "VT_SELECTION",
    "INCR",
    "WM_DELETE_WINDOW",
    "_NET_WM_DESKTOP",
    "_WIN_WORKSPACE",
    "_NET_WM_NAME",
    "_NET_WM_ICON_NAME",
    "WM_CLIENT_LEADER",
    "_NET_WM_WINDOW_OPACITY",
#ifndef NO_FRILLS
    "_NET_WM_PID",
#endif
#ifdef HAVE_X11_SM_SMLIB_H
    "SM_CLIENT_ID",
#endif
#ifdef USE_XIM
    "WM_LOCALE_NAME",
#endif
#ifdef TRANSPARENT
    "_XROOTPMAP_ID",
    "_XSETROOT_ID",
#endif
#ifdef OFFIX_DND
    "DndProtocol",
    "DndSelection",
#endif
    "CLIPBOARD"
};

/* substitute system functions */
#if defined(OS_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)
{
    register int	i;
    struct rxvt_hidden*	h;


    MEMSET(r, 0, sizeof(rxvt_t));

    h = r->h = (struct rxvt_hidden *)rxvt_calloc(1, sizeof(struct rxvt_hidden));

    for (i = 0; i < MAX_PAGES; i ++)
    {
	/* Initialize vts_idx for each term_t structure */
	r->vterm[i].vts_idx = -1;
	/* Initialize each vts pointer */
	SET_NULL(r->vts[i]);
    }

    SET_NULL(r->Xdisplay);
#ifdef USE_XIM
    SET_NULL(r->TermWin.fontset);
#endif
    SET_NULL(r->TermWin.font);
#ifdef MULTICHAR_SET
    SET_NULL(r->TermWin.mfont);
#endif
#ifndef NO_BOLDFONT
    SET_NULL(r->TermWin.bfont);
#endif

#ifdef XFT_SUPPORT
    SET_NULL(r->TermWin.xftpattern);
    SET_NULL(r->TermWin.xftfont);
    SET_NULL(r->TermWin.xftpfont);
    SET_NULL(r->TermWin.xftPfont);
# ifndef NO_BOLDFONT
    SET_NULL(r->TermWin.xftbfont);
# endif	/* NO_BOLDFONT */
# ifdef MULTICHAR_SET
#  ifdef HAVE_ICONV_H
    r->TermWin.xfticonv = (iconv_t) -1;
#  endif
    SET_NULL(r->TermWin.xftmpattern);
    SET_NULL(r->TermWin.xftmfont);
# endif	/* MULTICHAR_SET */
#endif	/* XFT_SUPPORT */

    UNSET_ATOM(h->xa[XA_COMPOUND_TEXT]);
    UNSET_ATOM(h->xa[XA_MULTIPLE]);
    UNSET_ATOM(h->xa[XA_TARGETS]);
    UNSET_ATOM(h->xa[XA_TEXT]);
    UNSET_ATOM(h->xa[XA_TIMESTAMP]);
    UNSET_ATOM(h->xa[XA_VT_SELECTION]);
    UNSET_ATOM(h->xa[XA_INCR]);
    h->locale = NULL;

# ifdef HAVE_MENUBAR
    SET_NULL(h->BuildMenu);
    SET_NULL(h->ActiveMenu);
    SET_NULL(h->popupMenu[0]);
    SET_NULL(h->popupMenu[1]);
    SET_NULL(h->popupMenu[2]);
    h->showingMenu = 0;

    /* Set the current menubar to empty defaults */
    SET_NULL(h->MenuBar.head);
    SET_NULL(h->MenuBar.tail);
    SET_NULL(h->MenuBar.title);
# endif

# ifdef USE_XIM
    SET_NULL(h->Input_Context);
# endif
    /* SET_NULL(h->v_bufstr); */
    SET_NULL(h->buffer);

# ifdef TRANSPARENT
    h->am_pixmap_trans = 0;
    h->am_transparent  = 0;
    UNSET_PIXMAP(h->rootPixmap);
    h->bgRefreshInterval = DEFAULT_BG_REFRESH_INTERVAL;
    h->lastCNotify.tv_sec = 0;	    /* No BG update pending */
# endif

    /* Initialize timeouts to 0 */
    for( i=NUM_TIMEOUTS; i--;)
        h->timeout[i].tv_sec = 0;


    /* Back to undocumented code :) */
    h->MEvent.time = CurrentTime;
    h->MEvent.button = AnyButton;
    r->Options[0] = DEFAULT_OPTIONS;
    r->Options[1] = DEFAULT_OPTIONS2;
    r->Options[2] = DEFAULT_OPTIONS3;
    r->Options[3] = DEFAULT_OPTIONS4;
    h->want_clip_refresh = 0;
    /*
     * We only want to set want_resize when we call XResizeWindow. In that
     * case if XResizeWindow fails, we know that we called it, and can run
     * our internal resize routines anyway (e.g. put the tabbar in place)
     */
    h->want_resize = 0;
    h->ttygid = -1;
    r->Xfd = -1;
#ifdef USE_FIFO
    r->fifo_fd = -1;
#endif
    r->ndead_childs = 0;

    r->nAsyncChilds = 0;

    /* default values */
#ifdef NO_FRILLS
    r->TermWin.int_bwidth = DEFAULT_INTERNALBORDERWIDTH;
    r->TermWin.ext_bwidth = DEFAULT_EXTERNALBORDERWIDTH;
#else
    r->TermWin.int_bwidth = (INTERNALBORDERWIDTH >= 0 && INTERNALBORDERWIDTH <= MAX_INTERNALBORDERWIDTH) ? INTERNALBORDERWIDTH : DEFAULT_INTERNALBORDERWIDTH;
    r->TermWin.ext_bwidth = (EXTERNALBORDERWIDTH >= 0 && EXTERNALBORDERWIDTH <= MAX_EXTERNALBORDERWIDTH) ? EXTERNALBORDERWIDTH : DEFAULT_EXTERNALBORDERWIDTH;
#endif

#ifndef NO_LINESPACE
    r->TermWin.lineSpace = (LINESPACE >= 0 && LINESPACE <= MAX_LINESPACE) ? LINESPACE : DEFAULT_LINESPACE;
#endif

#ifdef CURSOR_BLINK
    r->h->blinkInterval = DEFAULT_BLINK_TIME;
#endif
#ifdef POINTER_BLANK
    r->h->pointerBlankDelay = DEFAULT_BLANKDELAY;
#endif

    /* Initialize selection data */
#ifndef NO_NEW_SELECTION
    r->selection_style = NEW_SELECT;
#else
    r->selection_style = OLD_SELECT;
#endif
    r->selection.vt = -1;
    r->selection.op = SELECTION_CLEAR;
    r->selection.screen = PRIMARY;
    r->selection.clicks = 0;
    SET_NULL(r->selection.text);
    r->selection.len = 0;
    r->selection.beg.row = 0;
    r->selection.beg.col = 0;
    r->selection.end.row = 0;
    r->selection.end.col = 0;

#ifndef NO_BRIGHTCOLOR
    h->colorfgbg = DEFAULT_RSTYLE;
#endif
#ifdef GREEK_SUPPORT
    h->ks_greekmodeswith = GREEK_KEYBOARD_MODESWITCH;
#endif
    h->refresh_type = SLOW_REFRESH;
    UNSET_REGION(h->refreshRegion);	    /* Will be created when needed */
    h->prev_nrow = h->prev_ncol = 0;

    r->encoding_method = ENC_NOENC;
    h->multichar_decode = rxvt_decode_dummy;

    h->oldcursor.row = h->oldcursor.col = -1;
    h->last_bot = h->last_state = -1;

#ifdef HAVE_X11_SM_SMLIB_H
    SET_NULL(r->TermWin.sm_conn);
    SET_NULL(r->TermWin.ice_conn);
    r->TermWin.ice_fd = -1;
    SET_NULL(r->TermWin.sm_client_id);
#endif

#ifdef USE_FIFO
    {
	char fifo_name[FILENAME_MAX];

	sprintf( fifo_name, "/tmp/.mrxvt-%d", getpid() );
	r->fbuf_ptr = r->fifo_buf;
	r->fifo_name = STRDUP( fifo_name );
    }
#endif/*USE_FIFO*/

    r->tabClicked = -1; /* No tab has been clicked by user */

    h->allowedxerror = 0;
    h->xerror_return = Success;
    return 0;
}


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

    if (gr)	    /* change group ownership of tty to "tty" */
    {
	r->h->ttygid = gr->gr_gid;
    }
    else
#endif		    /* TTY_GID_SUPPORT */
    {
	r->h->ttygid = getgid();
    }

    rxvt_set_default_locale (r);

    /* get number of available file descriptors */
#if defined(_POSIX_VERSION) || ! defined(OS_SVR4)
    num_fds = (int)sysconf(_SC_OPEN_MAX);
#else
    num_fds = rxvt_getdtablesize();
#endif

    /*
    ** Close all unused file descriptors
    ** We don't want them, we don't need them.
    */
    if ((i = open("/dev/null", O_RDONLY)) < 0)
    {
	/* TODO: BOO HISS */
	dup2(STDERR_FILENO, STDIN_FILENO);
    }
    else if (i > STDIN_FILENO)
    {
	dup2(i, STDIN_FILENO);
	close(i);
    }
    dup2(STDERR_FILENO, STDOUT_FILENO);
    for (i = STDERR_FILENO + 1; i < num_fds; i++)
    {
    /* #ifdef __sgi */
#ifdef OS_IRIX
	/* Alex Coventry says we need 4 & 7 too */
	if (i == 4 || i == 7)
	    continue;
#endif
	close(i);
    }

    /* Now set the correct num_fds */
    r->num_fds = STDERR_FILENO + 1;
#ifdef OS_IRIX
    r->num_fds = 7 + 1;
#endif
}


/* INTPROTO */
int
rxvt_xerror_handler(const Display *display __attribute__((unused)), const XErrorEvent *event)
{
    rxvt_t*	r = rxvt_get_r();
    char    error_msg[1024];

    XGetErrorText (r->Xdisplay, event->error_code, error_msg, 1023);
    r->h->xerror_return = event->error_code;

    if( !r->h->allowedxerror )
    {
	rxvt_msg (DBG_ERROR, DBG_INIT, "%s", error_msg);

#ifdef DEBUG_X
	abort();
#endif
    }

    return 0;	    /* ignored anyway */
}


#ifdef TEXT_SHADOW
/* INTPROTO */
void
rxvt_init_shadow_mode (rxvt_t* r, const char* shadow_mode)
{
    if (
	  !shadow_mode || !STRCASECMP ("botright", shadow_mode)
	  || !STRCASECMP ("default", shadow_mode))
    {
	r->TermWin.shadow_mode = SHADOW_BOTRIGHT;
    }
    else if (!STRCASECMP ("botleft", shadow_mode))
    {
	r->TermWin.shadow_mode = SHADOW_BOTLEFT;
    }
    else if (!STRCASECMP ("topright", shadow_mode))
    {
	r->TermWin.shadow_mode = SHADOW_TOPRIGHT;
    }
    else if (!STRCASECMP ("topleft", shadow_mode))
    {
	r->TermWin.shadow_mode = SHADOW_TOPLEFT;
    }
    else if (!STRCASECMP ("top", shadow_mode))
    {
	r->TermWin.shadow_mode = SHADOW_TOP;
    }
    else if (!STRCASECMP ("bottom", shadow_mode))
    {
	r->TermWin.shadow_mode = SHADOW_BOTTOM;
    }
    else if (!STRCASECMP ("left", shadow_mode))
    {
	r->TermWin.shadow_mode = SHADOW_LEFT;
    }
    else if (!STRCASECMP ("right", shadow_mode))
    {
	r->TermWin.shadow_mode = SHADOW_RIGHT;
    }
    else if (!STRCASECMP ("none", shadow_mode))
    {
	r->TermWin.shadow_mode = SHADOW_NONE;
    }
    else	/* no match == default */
    {
	r->TermWin.shadow_mode = SHADOW_NONE;
    }
}
#endif


/*----------------------------------------------------------------------*/
/* EXTPROTO */
void
rxvt_set_jumpscroll( rxvt_t *r )
{
    if( r->h->rs[Rs_refreshLimit] )
    {
	r->h->refresh_limit = atol( r->h->rs[Rs_refreshLimit] );
	if( r->h->refresh_limit < 0 )
	    r->h->refresh_limit = 0;
    }
    else
	r->h->refresh_limit = DEFAULT_REFRESH_LIMIT;

    if( r->h->rs[Rs_skipPages] )
    {
	r->h->skip_pages = atol( r->h->rs[Rs_skipPages] );
	if( r->h->skip_pages <= 0 )
	    r->h->skip_pages = 1;
    }
    else
	r->h->skip_pages = DEFAULT_SKIP_PAGES;
}


/* EXTPROTO */
const char**
rxvt_init_resources(rxvt_t* r, int argc, const char *const *argv)
{
    register int    i, r_argc;
    const char**    cmd_argv;
    const char**    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];
    SET_NULL(r_argv[i]);

    if (r_argc == argc)
	SET_NULL(cmd_argv);
    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];
	SET_NULL(cmd_argv[i]);
    }

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

    rs[Rs_name] = rxvt_r_basename( argv[0] );

    /*
     * Open display, get options/resources and create the window
     */
    rxvt_get_options( r, r_argc, r_argv );
    rxvt_free( r_argv ); /* XXX memory leak? */

#ifdef LOCAL_X_IS_UNIX
    /*
     * 2008-04-29 gi1242: Force UNIX sockets for security (Gentoo Bug #219750)
     */
    if( IS_NULL( rs[Rs_display_name] ) )
	rs[Rs_display_name] = getenv( "DISPLAY" );

    if( rs[Rs_display_name] && rs[Rs_display_name][0] == ':' )
    {
	char *val;
	int l = 5 + STRLEN(rs[Rs_display_name]);
	if (l <= 0 || l > 1024) /* possible integer overflow */
	    l = 1024;

	val = rxvt_malloc(l);
	STRCPY( val, "unix");
	STRNCAT( val, rs[Rs_display_name], l-5);

	rs[Rs_display_name] = val;