cmd/mail/savehdrs.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 (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*    All Rights Reserved   */

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

#include "mail.h"
/*
 * Save info on each header line for possible generation
 * of MTA positive or negative delivery notification
 */
void
savehdrs(s, hdrtype)
char *s;
int hdrtype;
{
    char        *q;
    int     rf;
    char        delim = ':';
    char        tbuf[HDRSIZ];
    static int  last_hdrtype = -1;

    if (hdrtype > H_CONT) {
        return;
    }
    if (hdrtype == H_CONT) {
        trimnl(s);
        pushlist(last_hdrtype, TAIL, s, TRUE);
        return;
    }

    last_hdrtype = hdrtype;

    if ((hdrtype == H_FROM) || (hdrtype == H_FROM1)) {
        delim = ' ';
    } else {
        if (fnuhdrtype == 0) {
            /* Save type of first non-UNIX header line */
            fnuhdrtype = hdrtype;
        }
    }
    switch (hdrtype) {
        case H_FROM1:
        /* If first ">From " line, check for '...remote from...' */
        if (hdrlines[H_FROM1].head == (struct hdrs *)NULL) {
            if ((rf = substr(s, " remote from ")) >= 0) {
                trimnl(s + rf);
                (void) snprintf(tbuf, sizeof (tbuf),
                    "from %s by %s%s; %s",
                    s+rf+13, thissys, maildomain(),
                    RFC822datestring);
                pushlist(H_RECEIVED, HEAD, tbuf, FALSE);
            }
        }
        break;

        /* Remember that these header line type were in orig. msg.  */
        case H_AFWDFROM:
        orig_aff++;
        break;
        case H_RECEIVED:
        orig_rcv++;
        break;
        case H_TCOPY:
        orig_tcopy++;
        break;
    }
    q = strchr(s, delim) + 1;
    q = skipspace(q);
    trimnl(q);
    if ((hdrtype == H_UAID) || (hdrtype == H_MTSID)) {
        /* Check for enclosing '<' & '>', and remove if found */
        /* gendeliv() will replace them if necessary */
        if ((*q == '<') && (*(q+strlen(q)-1) == '>')) {
            q++;
            *(q+strlen(q)-1) = '\0';
        }
    }

    pushlist(hdrtype, TAIL, q, FALSE);
}