xref: /freebsd-11-stable/contrib/ncurses/progs/tput.c

/****************************************************************************
 * Copyright (c) 1998,1999,2000 Free Software Foundation, Inc.                        *
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 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
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 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
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 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 ****************************************************************************/

/*
 * tput.c -- shellscript access to terminal capabilities
 *
 * by Eric S. Raymond <esr@snark.thyrsus.com>, portions based on code from
 * Ross Ridge's mytinfo package.
 */

#include <progs.priv.h>
#ifndef	PURE_TERMINFO
#include <termsort.c>
#endif

MODULE_ID("$Id: tput.c,v 1.16 2000/03/19 01:08:08 tom Exp $")

#define PUTS(s)		fputs(s, stdout)
#define PUTCHAR(c)	putchar(c)
#define FLUSH		fflush(stdout)

static char *prg_name;

static void
quit(int status, const char *fmt,...)
{
    va_list argp;

    va_start(argp, fmt);
    vfprintf(stderr, fmt, argp);
    fprintf(stderr, "\n");
    va_end(argp);
    exit(status);
}

static void
usage(void)
{
    fprintf(stderr, "usage: %s [-S] [-T term] capname\n", prg_name);
    exit(EXIT_FAILURE);
}

static int
tput(int argc, char *argv[])
{
    NCURSES_CONST char *name;
    char *s;
    int i, j, c;
    int reset, status;
    FILE *f;

    reset = 0;
    name = argv[0];
    if (strcmp(name, "reset") == 0) {
	reset = 1;
    }
    if (reset || strcmp(name, "init") == 0) {
	if (init_prog != 0) {
	    system(init_prog);
	}
	FLUSH;

	if (reset && reset_1string != 0) {
	    PUTS(reset_1string);
	} else if (init_1string != 0) {
	    PUTS(init_1string);
	}
	FLUSH;

	if (reset && reset_2string != 0) {
	    PUTS(reset_2string);
	} else if (init_2string != 0) {
	    PUTS(init_2string);
	}
	FLUSH;

	if (set_lr_margin != 0) {
	    PUTS(tparm(set_lr_margin, 0, columns - 1));
	} else if (set_left_margin_parm != 0
	    && set_right_margin_parm != 0) {
	    PUTS(tparm(set_left_margin_parm, 0));
	    PUTS(tparm(set_right_margin_parm, columns - 1));
	} else if (clear_margins != 0
	    && set_left_margin != 0
	    && set_right_margin != 0) {
	    PUTS(clear_margins);
	    if (carriage_return != 0) {
		PUTS(carriage_return);
	    } else {
		PUTCHAR('\r');
	    }
	    PUTS(set_left_margin);
	    if (parm_right_cursor) {
		PUTS(tparm(parm_right_cursor, columns - 1));
	    } else {
		for (i = 0; i < columns - 1; i++) {
		    PUTCHAR(' ');
		}
	    }
	    PUTS(set_right_margin);
	    if (carriage_return != 0) {
		PUTS(carriage_return);
	    } else {
		PUTCHAR('\r');
	    }
	}
	FLUSH;

	if (init_tabs != 8) {
	    if (clear_all_tabs != 0 && set_tab != 0) {
		for (i = 0; i < columns - 1; i += 8) {
		    if (parm_right_cursor) {
			PUTS(tparm(parm_right_cursor, 8));
		    } else {
			for (j = 0; j < 8; j++)
			    PUTCHAR(' ');
		    }
		    PUTS(set_tab);
		}
		FLUSH;
	    }
	}

	if (reset && reset_file != 0) {
	    f = fopen(reset_file, "r");
	    if (f == 0) {
		quit(errno, "Can't open reset_file: '%s'", reset_file);
	    }
	    while ((c = fgetc(f)) != EOF) {
		PUTCHAR(c);
	    }
	    fclose(f);
	} else if (init_file != 0) {
	    f = fopen(init_file, "r");
	    if (f == 0) {
		quit(errno, "Can't open init_file: '%s'", init_file);
	    }
	    while ((c = fgetc(f)) != EOF) {
		PUTCHAR(c);
	    }
	    fclose(f);
	}
	FLUSH;

	if (reset && reset_3string != 0) {
	    PUTS(reset_3string);
	} else if (init_2string != 0) {
	    PUTS(init_2string);
	}
	FLUSH;
	return 0;
    }

    if (strcmp(name, "longname") == 0) {
	PUTS(longname());
	return 0;
    }
#ifndef	PURE_TERMINFO
    {
	const struct name_table_entry *np;

	if ((np = _nc_find_entry(name, _nc_get_hash_table(1))) != 0)
	    switch (np->nte_type) {
	    case BOOLEAN:
		if (bool_from_termcap[np->nte_index])
		    name = boolnames[np->nte_index];
		break;

	    case NUMBER:
		if (num_from_termcap[np->nte_index])
		    name = numnames[np->nte_index];
		break;

	    case STRING:
		if (str_from_termcap[np->nte_index])
		    name = strnames[np->nte_index];
		break;
	    }
    }
#endif

    if ((status = tigetflag(name)) != -1) {
	return (status != 0);
    } else if ((status = tigetnum(name)) != CANCELLED_NUMERIC) {
	(void) printf("%d\n", status);
	return (0);
    } else if ((s = tigetstr(name)) == CANCELLED_STRING) {
	quit(4, "%s: unknown terminfo capability '%s'", prg_name, name);
    } else if (s != 0) {
	if (argc > 1) {
	    int k;
	    char * params[10];

	    /* Nasty hack time. The tparm function needs to see numeric
	     * parameters as numbers, not as pointers to their string
	     * representations
	     */

	    for (k = 1; k < argc; k++) {
		if (isdigit(argv[k][0])) {
		    long val = atol(argv[k]);
		    params[k] = (char *)val;
		} else {
		    params[k] = argv[k];
		}
	    }
	    for (k = argc; k <= 9; k++)
		params[k] = 0;

	    s = tparm(s,
	    	params[1], params[2], params[3],
		params[4], params[5], params[6],
		params[7], params[8], params[9]);
	}

	/* use putp() in order to perform padding */
	putp(s);
	return (0);
    }
    return (0);
}

int
main(int argc, char **argv)
{
    char *s, *term;
    int errret, cmdline = 1;
    int c;
    char buf[BUFSIZ];
    int errors = 0;

    prg_name = argv[0];
    s = strrchr(prg_name, '/');
    if (s != 0 && *++s != '\0')
	prg_name = s;

    term = getenv("TERM");

    while ((c = getopt(argc, argv, "ST:")) != EOF)
	switch (c) {
	case 'S':
	    cmdline = 0;
	    break;
	case 'T':
	    use_env(FALSE);
	    term = optarg;
	    break;
	default:
	    usage();
	    /* NOTREACHED */
	}
    argc -= optind;
    argv += optind;

    if (cmdline && argc == 0) {
	usage();
	/* NOTREACHED */
    }

    if (term == 0 || *term == '\0')
	quit(2, "No value for $TERM and no -T specified");

    if (setupterm(term, STDOUT_FILENO, &errret) != OK && errret <= 0)
	quit(3, "unknown terminal \"%s\"", term);

    if (cmdline)
	return tput(argc, argv);

    while (fgets(buf, sizeof(buf), stdin) != 0) {
	char *argvec[16];	/* command, 9 parms, null, & slop */
	int argnum = 0;
	char *cp;

	/* crack the argument list into a dope vector */
	for (cp = buf; *cp; cp++) {
	    if (isspace(*cp))
		*cp = '\0';
	    else if (cp == buf || cp[-1] == 0)
		argvec[argnum++] = cp;
	}
	argvec[argnum] = 0;

	if (tput(argnum, argvec) != 0)
	    errors++;
    }

    return errors > 0;
}