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    Length: 3448 (0xd78)
    Types: TextFile
    Names: »pop_send.c«

└─⟦9ae75bfbd⟧ Bits:30007242 EUUGD3: Starter Kit
    └─⟦ac17ffda3⟧ »EurOpenD3/mail/popper-1.7b1.tar.Z« 
        └─⟦d6ac5563a⟧ 
            └─⟦this⟧ »pop_send.c« 

TextFile

/*
 * 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) 1989 Regents of the University of California.\n\ All rights reserved.\n";
static char SccsId[] = "@(#)pop_send.c  1.5 5/15/90";
#endif not lint

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

/* 
 *  send:   Send the header and a specified number of lines 
 *          from a mail message to a POP client.
 */

pop_send(p)
POP     *   p;
{
    MsgInfoList         *   mp;         /*  Pointer to message info list */
    register int            msg_num;
    register int            msg_lines;
    char                    buffer[MAXMSGLINELEN];

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

    /*  If this is a TOP command, get the number of lines to send */
    if (strcmp(p->pop_command,"top") == 0) {
        /*  Convert the second parameter into an integer */
        msg_lines = atoi(p->pop_parm[2]);
    }
    else {
        /*  Assume that a RETR (retrieve) command was issued */
        msg_lines = -1;
        /*  Flag the message as retreived */
        mp->retr_flag = TRUE;
    }
    
    /*  Display the number of bytes in the message */
    pop_msg(p,POP_SUCCESS,"%u octets",mp->length);

    /*  Position to the start of the message */
    fseek(p->drop,mp->offset,0);

    /*  Send the header of the message followed by a blank line */
    while (fgets(buffer,MAXMSGLINELEN,p->drop)) {
        pop_sendline (p,buffer);
        /*  A single newline (blank line) signals the 
            end of the header.  sendline() converts this to a NULL, 
            so that's what we look for. */
        if (*buffer == 0) break;
    }
    /*  Send the message body */
    while (fgets(buffer,MAXMSGLINELEN,p->drop)) {
        /*  Look for the start of the next message */
        if (strncmp(buffer,"From ",5) == 0) break;
        /*  Decrement the lines sent (for a TOP command) */
        if (msg_lines >= 0 && msg_lines-- == 0) break;
        pop_sendline(p,buffer);
    }
    /*  "." signals the end of a multi-line transmission */
    fputs(".\r\n",p->output);
    fflush(p->output);

    return(POP_SUCCESS);
}

/*
 *  sendline:   Send a line of a multi-line response to a client.
 */
pop_sendline(p,buffer)
POP         *   p;
char        *   buffer;
{
    char        *   bp;

    /*  Byte stuff lines that begin with the temirnation octet */
    if (*buffer == POP_TERMINATE) fputc(POP_TERMINATE,p->output);

    /*  Look for a <NL> in the buffer */
    if (bp = index(buffer,NEWLINE)) *bp = 0;

    /*  Send the line to the client */
    fputs(buffer,p->output);

#ifdef DEBUG
    if(p->debug)pop_log(p,POP_DEBUG,"Sending line \"%s\"",buffer);
#endif DEBUG

    /*  Put a <CR><NL> if a newline was removed from the buffer */
    if (bp) fputs ("\r\n",p->output);
}