/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <ctype.h>
#include <sys/stat.h>
#include "tmstruct.h"
#include "ttymon.h"

/*
 *      find_label - return 1 if ttylabel already exists
 *                 - return 0 otherwise
 */
int
find_label(FILE *fp, char *ttylabel)
{
        char *p;                /* working pointer */
        int line = 0;           /* line number we found entry on */
        static char buf[BUFSIZ]; /* scratch buffer */

        while (fgets(buf, BUFSIZ, fp)) {
                line++;
                p = buf;
                while (isspace(*p))
                        p++;
                if ((p = strtok(p, " :")) != NULL) {
                        if (strcmp(p, ttylabel) == 0)
                                return (line);
                }
        }
        if (!feof(fp)) {
                (void) fprintf(stderr, "error reading \"%s\"\n", TTYDEFS);
                return (0);
        }
        return (0);
}