cmd/mail/parse.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   */


#pragma ident   "%Z%%M% %I% %E% SMI"

#include "mail.h"
/*
    Parse the command line.
    Return index of first non-option field (i.e. user)
*/
int
parse(int argc, char **argv)
{
    int         c;
    char            *tmailsurr;
    static char     pn[] = "parse";

    /*
        "mail +" means to print in reverse order and is
        equivalent to "mail -r"
    */
    if ((argc > 1) && (argv[1][0] == '+')) {
        if (ismail) {
            argv[1] = "-r";
        } else {
            goerr++;
        }
    }

    while ((c = getopt(argc, argv, "m:f:x:shrpPqeEdtT:w")) != EOF) {
        switch(c) {
        /*
            Set debugging level...
        */
        case 'x':
            debug = atoi(optarg);
            orig_dbglvl = debug;
            if (debug < 0) {
                /* Keep trace file even if successful */
                keepdbgfile = -1;
                debug = -debug;
            }
            break;

        /*
            for backwards compatability with mailx...
        */
        case 's':
            /* ignore this option */
            break;
                /*
         * Deliver directly to a mailbox. Do Not go to sendmail
         */
        case 'd':
            deliverflag = TRUE;
            break;

        /*
            do not print mail
        */
        case 'e':
            if (ismail) {
                flge = 1;
            } else {
                goerr++;
            }
            optcnt++;
            break;
        /*
            do not print mail
        */
        case 'E':
            if (ismail) {
                flgE = 1;
            } else {
                goerr++;
            }
            optcnt++;
            break;
        /*
         *  use alternate file as mailfile, when reading mail
         *      use this from user when sending mail.
         */
        case 'f':
            flgf = 1;
            fromflag = TRUE;
            mailfile = optarg;
            strncpy(from_user, optarg, sizeof (from_user));
            from_user[sizeof (from_user) - 1] = '\0';
            optcnt++;
            break;

        /*
            Print headers first
        */
        case 'h':
            if (ismail) {
                flgh = 1;
            } else {
                goerr++;
            }
            optcnt++;
            break;

        /*
            print without prompting
        */
        case 'p':
            if (ismail) {
                flgp++;
            } else {
                goerr++;
            }
            optcnt++;
            break;

        /*
            override selective display default setting
            when reading mail...
        */
        case 'P':
            if (ismail) {
                flgP++;
            }
            optcnt++;
            break;

        /*
            terminate on deletes
        */
        case 'q':
            if (ismail) {
                delflg = 0;
            } else {
                goerr++;
            }
            optcnt++;
            break;

        /*
            print by first in, first out order
        */
        case 'r':
            if (ismail) {
                flgr = 1;
            } else {
                goerr++;
            }
            optcnt++;
            break;

        /*
            add To: line to letters
        */
        case 't':
            flgt = 1;
            optcnt++;
            break;

        /*
            don't wait on sends
        */
        case 'w':
            flgw = 1;
            break;

        /*
            set message-type:
        */
        case 'm':
            msgtype = optarg;
            if (msgtype[0] == '\0' || msgtype[0] == '-') {
                goerr++;
            } else {
                flgm = 1;
            }
            break;

        /*
            bad option
        */
        case '?':
            goerr++;
            break;
        }
    }


    if (argc == optind) {

        if (flgm) {
        errmsg(E_SYNTAX,
            "-m option used but no recipient(s) specified.");
        goerr++;
        }
        if (flgt) {
        errmsg(E_SYNTAX,
            "-t option used but no recipient(s) specified.");
        goerr++;
        }
        if (flgw) {
        errmsg(E_SYNTAX,
            "-w option used but no recipient(s) specified.");
        goerr++;
        }
        if (flgf) {
            if (mailfile[0] == '-') {
                errmsg(E_SYNTAX,
                   "Files names must not begin with '-'");
                done(0);
            }
            if (!ismail)
                goerr++;
        }
    }

    if (ismail && (goerr > 0)) {
        errmsg(E_SYNTAX,"Usage: [-ehpPqr] [-f file] [-x debuglevel]");
        (void) fprintf (stderr, "or\t[-tw] [-m message_type] [-T file] [-x debuglevel] persons\n");
        (void) fprintf (stderr, "or\t[-x debuglevel]\n");
        done(0);
    }

    return (optind);
}