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9e3275a35b
usage() has been made a (non-void) function so that it can be used in a pointer expression (see macro `next'). Widen the implied integer return type of usage() so that we can cast to a pointer without warnings.
208 lines
5.4 KiB
C
208 lines
5.4 KiB
C
/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Edward Wang at The University of California, Berkeley.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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char copyright[] =
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"@(#) Copyright (c) 1983, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 4/2/94";
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static char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include "defs.h"
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#include <paths.h>
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#include <locale.h>
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#include <stdio.h>
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#include <string.h> /* System string definitions. */
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#include "mystring.h" /* Local string definitions. */
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#include "char.h"
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#include "local.h"
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#define next(a) (*++*(a) ? *(a) : (*++(a) ? *(a) : (char *)(uintptr_t)usage()))
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/*ARGSUSED*/
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main(argc, argv)
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char **argv;
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{
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register char *p;
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char fflag = 0;
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char dflag = 0;
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char xflag = 0;
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char *cmd = 0;
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char tflag = 0;
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escapec = ESCAPEC;
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if (p = rindex(*argv, '/'))
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p++;
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else
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p = *argv;
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debug = strcmp(p, "a.out") == 0;
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while (*++argv) {
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if (**argv == '-') {
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switch (*++*argv) {
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case 'f':
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fflag++;
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break;
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case 'c':
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if (cmd != 0) {
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(void) fprintf(stderr,
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"Only one -c allowed.\n");
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(void) usage();
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}
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cmd = next(argv);
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break;
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case 'e':
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setescape(next(argv));
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break;
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case 't':
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tflag++;
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break;
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case 'd':
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dflag++;
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break;
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case 'D':
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debug = !debug;
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break;
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case 'x':
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xflag++;
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break;
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default:
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(void) usage();
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}
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} else
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(void) usage();
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}
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if ((p = getenv("SHELL")) == 0)
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p = _PATH_BSHELL;
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if ((default_shellfile = str_cpy(p)) == 0) {
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(void) fprintf(stderr, "Out of memory.\n");
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exit(1);
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}
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if (p = rindex(default_shellfile, '/'))
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p++;
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else
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p = default_shellfile;
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default_shell[0] = p;
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default_shell[1] = 0;
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default_nline = NLINE;
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default_smooth = 1;
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(void) gettimeofday(&starttime, (struct timezone *)0);
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(void) setlocale(LC_CTYPE, "");
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if (wwinit() < 0) {
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(void) fprintf(stderr, "%s.\n", wwerror());
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exit(1);
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}
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#ifdef OLD_TTY
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if (debug)
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wwnewtty.ww_tchars.t_quitc = wwoldtty.ww_tchars.t_quitc;
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if (xflag) {
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wwnewtty.ww_tchars.t_stopc = wwoldtty.ww_tchars.t_stopc;
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wwnewtty.ww_tchars.t_startc = wwoldtty.ww_tchars.t_startc;
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}
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#else
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if (debug) {
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wwnewtty.ww_termios.c_cc[VQUIT] =
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wwoldtty.ww_termios.c_cc[VQUIT];
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wwnewtty.ww_termios.c_lflag |= ISIG;
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}
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if (xflag) {
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wwnewtty.ww_termios.c_cc[VSTOP] =
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wwoldtty.ww_termios.c_cc[VSTOP];
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wwnewtty.ww_termios.c_cc[VSTART] =
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wwoldtty.ww_termios.c_cc[VSTART];
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wwnewtty.ww_termios.c_iflag |= IXON;
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}
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#endif
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if (debug || xflag)
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(void) wwsettty(0, &wwnewtty);
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if ((cmdwin = wwopen(wwbaud > 2400 ? WWO_REVERSE : 0, 1, wwncol,
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0, 0, 0)) == 0) {
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wwflush();
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(void) fprintf(stderr, "%s.\r\n", wwerror());
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goto bad;
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}
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cmdwin->ww_mapnl = 1;
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cmdwin->ww_nointr = 1;
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cmdwin->ww_noupdate = 1;
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cmdwin->ww_unctrl = 1;
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if ((framewin = wwopen(WWO_GLASS|WWO_FRAME, wwnrow, wwncol, 0, 0, 0))
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== 0) {
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wwflush();
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(void) fprintf(stderr, "%s.\r\n", wwerror());
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goto bad;
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}
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wwadd(framewin, &wwhead);
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if ((boxwin = wwopen(WWO_GLASS, wwnrow, wwncol, 0, 0, 0)) == 0) {
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wwflush();
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(void) fprintf(stderr, "%s.\r\n", wwerror());
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goto bad;
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}
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fgwin = framewin;
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wwupdate();
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wwflush();
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setvars();
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setterse(tflag);
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setcmd(1);
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if (cmd != 0)
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(void) dolongcmd(cmd, (struct value *)0, 0);
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if (!fflag)
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if (dflag || doconfig() < 0)
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dodefault();
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if (selwin != 0)
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setcmd(0);
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mloop();
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bad:
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wwend(1);
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return 0;
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}
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usage()
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{
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(void) fprintf(stderr, "usage: window [-e escape-char] [-c command] [-t] [-f] [-d]\n");
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exit(1);
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return 0; /* for lint */
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}
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