/* RE_SID: @(%)/tmp_mnt/vol/sha/qsilver_SCCS/unix/pop3/solaris2/SCCS/s.pop_dele.c 1.1 93/01/20 11:05:17 SMI */
/*
 * Copyright (c) 1989 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
static char copyright[] = "Copyright (c) 1990 Regents of the University of California.\nAll rights reserved.\n";
static char SccsId[] = "@(#)@(#)pop_dele.c	2.1  2.1 3/18/91";
#endif not lint

#include <stdio.h>
#include <sys/types.h>
#include <ctype.h>
#include "popper.h"

/* 
 *  dele:   Delete a message from the POP maildrop
 */
pop_dele (p)
POP     *   p;
{
    MsgInfoList     *   mp;         /*  Pointer to message info list */
    int                 msg_num;

    /*  Convert the message number parameter to an integer */
    msg_num = atoi(p->pop_parm[1]);

    /*  Is requested message out of range? */
    if ((msg_num < 1) || (msg_num > p->msg_count))
        return (pop_msg (p,POP_FAILURE,"Message %d does not exist.",msg_num));

    /*  Get a pointer to the message in the message list */
    mp = &(p->mlp[msg_num-1]);

    /*  Is the message already flagged for deletion? */
    if (mp->del_flag)
        return (pop_msg (p,POP_FAILURE,"Message %d has already been deleted.",
            msg_num));

    /*  Flag the message for deletion */
    mp->del_flag = TRUE;

#ifdef DEBUG
    if(p->debug)
        pop_log(p,POP_DEBUG,"Deleting message %u at offset %u of length %u\n",
            mp->number,mp->offset,mp->length);
#endif DEBUG

    /*  Update the messages_deleted and bytes_deleted counters */
    p->msgs_deleted++;
    p->bytes_deleted += mp->length;

    /*  Update the last-message-accessed number if it is lower than 
        the deleted message */
    if (p->last_msg < msg_num) p->last_msg = msg_num;

    return (pop_msg (p,POP_SUCCESS,"Message %d has been deleted.",msg_num));
}
