text: /*	$OpenBSD: tput.c,v 1.5 1997/06/24 02:40:15 dgregor Exp $	*/
  /*	$NetBSD: tput.c,v 1.8 1995/08/31 22:11:37 jtc Exp $	*/
  
  /*-
   * Copyright (c) 1980, 1988, 1993
   *	The Regents of the University of California.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed by the University of
   *	California, Berkeley and its contributors.
   * 4. Neither the name of the University nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  #ifndef lint
  static char copyright[] =
  "@(#) Copyright (c) 1980, 1988, 1993\n\
  	The Regents of the University of California.  All rights reserved.\n";
  #endif /* not lint */
  
  #ifndef lint
  #if 0
  static char sccsid[] = "@(#)tput.c	8.3 (Berkeley) 4/28/95";
  #endif
  static char rcsid[] = "$OpenBSD: tput.c,v 1.5 1997/06/24 02:40:15 dgregor Exp $";
  #endif /* not lint */
  
  #include <termios.h>
  
  #include <err.h>
  #include <curses.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <unistd.h>
  #include <string.h>
  
  static void   prlongname __P((char *));
  static void   setospeed __P((void));
  static void   outc __P((int));
  static void   usage __P((void));
  static char **process __P((char *, char *, char **));
  
  int
  main(argc, argv)
  	int argc;
  	char **argv;
  {
  	extern char *optarg;
  	extern int optind;
  	int ch, exitval, n;
  	char *argv0, *cptr, *p, *term, buf[1024], tbuf[1024];
  
  	term = NULL;
  	while ((ch = getopt(argc, argv, "T:")) != -1)
  		switch(ch) {
  		case 'T':
  			term = optarg;
  			break;
  		case '?':
  		default:
  			usage();
  		}
  	if ((argv0 = (char *)strrchr(argv[0], '/')) != NULL)
  		argv0++;
  	else
  		argv0 = argv[0];
  	argc -= optind;
  	argv += optind;
  
  
  	if (!term && !(term = getenv("TERM")))
  errx(2, "no terminal type specified and no TERM environmental variable.");
  	if (tgetent(tbuf, term) != 1)
  		err(2, "tgetent failure");
  	setospeed();
  	if (strcmp(argv0, "clear") == 0) {
  		*argv = "clear";
  		*(argv+1) = NULL;
  	}
  	for (exitval = 0; (p = *argv) != NULL; ++argv) {
  		switch (*p) {
  		case 'c':
  			if (!strcmp(p, "clear"))
  				p = "cl";
  			break;
  		case 'i':
  			if (!strcmp(p, "init"))
  				p = "is";
  			break;
  		case 'l':
  			if (!strcmp(p, "longname")) {
  				prlongname(tbuf);
  				continue;
  			}
  			break;
  		case 'r':
  			if (!strcmp(p, "reset"))
  				p = "rs";
  			break;
  		}
  		cptr = buf;
  		if (tgetstr(p, &cptr))
  			argv = process(p, buf, argv);
  		else if ((n = tgetnum(p)) != -1)
  			(void)printf("%d\n", n);
  		else
  			exitval = !tgetflag(p);
  
  		if (argv == NULL)
  			break;
  	}
  	exit(argv ? exitval : 2);
  }
  
  static void
  prlongname(buf)
  	char *buf;
  {
  	int savech;
  	char *p, *savep;
  
  	for (p = buf; *p && *p != ':'; ++p)
  		continue;
  	savech = *(savep = p);
  	for (*p = '\0'; p >= buf && *p != '|'; --p)
  		continue;
  	(void)printf("%s\n", p + 1);
  	*savep = savech;
  }
  
  static char **
  process(cap, str, argv)
  	char *cap, *str, **argv;
  {
  	static char errfew[] =
  	    "not enough arguments (%d) for capability `%s'";
  	static char errmany[] =
  	    "too many arguments (%d) for capability `%s'";
  	static char erresc[] =
  	    "unknown %% escape `%c' for capability `%s'";
  	char *cp;
  	int arg_need, arg_rows, arg_cols;
  
  	/* Count how many values we need for this capability. */
  	for (cp = str, arg_need = 0; *cp != '\0'; cp++)
  		if (*cp == '%')
  			    switch (*++cp) {
  			    case 'd':
  			    case '2':
  			    case '3':
  			    case '.':
  			    case '+':
  				    arg_need++;
  				    break;
  			    case '%':
  			    case '>':
  			    case 'i':
  			    case 'r':
  			    case 'n':
  			    case 'B':
  			    case 'D':
  				    break;
  			    default:
  				/*
  				 * hpux has lot's of them, but we complain
  				 */
  				 errx(2, erresc, *cp, cap);
  			    }
  
  	/* And print them. */
  	switch (arg_need) {
  	case 0:
  		(void)tputs(str, 1, outc);
  		break;
  	case 1:
  		arg_cols = 0;
  
  		if (*++argv == NULL || *argv[0] == '\0')
  			errx(2, errfew, 1, cap);
  		arg_rows = atoi(*argv);
  
  		(void)tputs(tgoto(str, arg_cols, arg_rows), 1, outc);
  		break;
  	case 2:
  		if (*++argv == NULL || *argv[0] == '\0')
  			errx(2, errfew, 2, cap);
  		arg_rows = atoi(*argv);
  
  		if (*++argv == NULL || *argv[0] == '\0')
  			errx(2, errfew, 2, cap);
  		arg_cols = atoi(*argv);
  
  		(void) tputs(tgoto(str, arg_cols, arg_rows), arg_rows, outc);
  		break;
  
  	default:
  		errx(2, errmany, arg_need, cap);
  	}
  	return (argv);
  }
  
  static void
  setospeed()
  {
  #undef ospeed
  	extern short ospeed;
  	struct termios t;
  
  	if (tcgetattr(STDOUT_FILENO, &t) != -1)
  		ospeed = 0;
  	else
  		ospeed = cfgetospeed(&t);
  }
  
  static void
  outc(c)
  	int c;
  {
  	(void)putchar(c);
  }
  
  static void
  usage()
  {
  	(void)fprintf(stderr, "usage: tput [-T term] attribute ...\n");
  	exit(1);
  }
  