usr/src/cmd/ttymon/admutil.c

   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 }