root/usr/src/cmd/mail/sel_disp.c
/*
 * 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 2005 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 "mail.h"

/*
 * If in default display mode from printmail(), selectively output
 * header lines. Any recognized header lines will have flag stored in
 * header[] structure. Other header lines which should be displayed in
 * the default output mode will be listed in the seldisp[] array.
 * This can all be overridden via the 'P' command at the ? prompt.
 */
int
sel_disp(int type, int hdrtype, char *s)
{
        static char pn[] = "sel_disp";
        char            *p;
        static  int     sav_lastrc = 0;
        int             i, rc = 0;

        if (sending || Pflg || (type != TTY)) {
                return (0);
        }

        switch (hdrtype) {
        case H_CONT:
                rc = sav_lastrc;
                break;
        case H_NAMEVALUE:
                for (i=0,p=seldisp[i]; p; p=seldisp[++i]) {
                        if (casncmp(s, p, strlen(p)) == 0) {
                                break;
                        }
                }
                if (p == (char *)NULL) {
                        rc = -1;
                }
                break;
        default:
                if (header[hdrtype].default_display == FALSE) {
                        rc = -1;
                        break;
                }
        }

        Dout(pn, 2, "type = %d, hdrtype = %d/'%s', rc = %d\n",
                type, hdrtype, header[hdrtype].tag, rc);
        sav_lastrc = rc;        /* In case next one is H_CONT... */
        return (rc);
}