xref: /illumos-gate/usr/src/cmd/ttymon/admutil.c (revision 8b80e8cb6855118d46f605e91b5ed4ce83417395)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 
31 #pragma ident	"%Z%%M%	%I%	%E% SMI"
32 
33 # include <stdio.h>
34 # include <unistd.h>
35 # include <stdlib.h>
36 # include <string.h>
37 # include <sys/types.h>
38 # include <ctype.h>
39 # include <sys/stat.h>
40 # include "tmstruct.h"
41 # include "ttymon.h"
42 
43 /*
44  *	find_label - return 1 if ttylabel already exists
45  *		   - return 0 otherwise
46  */
47 int
48 find_label(FILE *fp, char *ttylabel)
49 {
50 	char *p;		/* working pointer */
51 	int line = 0;		/* line number we found entry on */
52 	static char buf[BUFSIZ];/* scratch buffer */
53 
54 	while (fgets(buf, BUFSIZ, fp)) {
55 		line++;
56 		p = buf;
57 		while (isspace(*p))
58 			p++;
59 		if ((p = strtok(p, " :")) != NULL) {
60 			if (!(strcmp(p, ttylabel)))
61 				return(line);
62 		}
63 	}
64 	if (!feof(fp)) {
65 		(void)fprintf(stderr, "error reading \"%s\"\n", TTYDEFS);
66 		return(0);
67 	}
68 	return(0);
69 }
70