usr/src/cmd/mail/isit.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 1995 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 #include "mail.h"
  31
  32 /*
  33  * isit(lp, type) --  match "name" portion of
  34  *              "name: value" pair
  35  *      lp      ->      pointer to line to check
  36  *      type    ->      type of header line to match
  37  * returns
  38  *      TRUE    ->      lp matches header type (case independent)
  39  *      FALSE   ->      no match
  40  *
  41  *  Execpt for H_FORM type, matching is case insensitive (bug 1173101)
  42  */
  43 int
  44 isit(lp, type)
  45 register char   *lp;
  46 register int    type;
  47 {
  48         register char   *p;
  49
  50         switch (type) {
  51         case H_FROM:
  52                 for (p = header[type].tag; *lp && *p; lp++, p++) {
  53                         if (*p != *lp)  {
  54                                 return (FALSE);
  55                         }
  56                 }
  57                 break;
  58         default:
  59                 for (p = header[type].tag; *lp && *p; lp++, p++) {
  60                         if (toupper(*p) != toupper(*lp))  {
  61                                 return (FALSE);
  62                         }
  63                 }
  64                 break;
  65         }
  66         if (*p == '\0') {
  67                 return (TRUE);
  68         }
  69         return (FALSE);
  70 }