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Annotation of 43BSDReno/usr.sbin/sendmail/aux/addr.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1983 Eric P. Allman
        !             3:  * Copyright (c) 1988 Regents of the University of California.
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * Redistribution and use in source and binary forms are permitted provided
        !             7:  * that: (1) source distributions retain this entire copyright notice and
        !             8:  * comment, and (2) distributions including binaries display the following
        !             9:  * acknowledgement:  ``This product includes software developed by the
        !            10:  * University of California, Berkeley and its contributors'' in the
        !            11:  * documentation or other materials provided with the distribution and in
        !            12:  * all advertising materials mentioning features or use of this software.
        !            13:  * Neither the name of the University nor the names of its contributors may
        !            14:  * be used to endorse or promote products derived from this software without
        !            15:  * specific prior written permission.
        !            16:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            19:  */
        !            20: 
        !            21: #ifndef lint
        !            22: char copyright[] =
        !            23: "@(#) Copyright (c) 1988 Regents of the University of California.\n\
        !            24:  All rights reserved.\n";
        !            25: #endif /* not lint */
        !            26: 
        !            27: #ifndef lint
        !            28: static char sccsid[] = "@(#)addr.c     5.3 (Berkeley) 6/1/90";
        !            29: #endif /* not lint */
        !            30: 
        !            31: # include "postbox.h"
        !            32: 
        !            33: /*
        !            34: **  PUTONQ -- put an address node on the end of a queue
        !            35: **
        !            36: **     Parameters:
        !            37: **             a -- the address to put on the queue.
        !            38: **             q -- the queue to put it on.
        !            39: **
        !            40: **     Returns:
        !            41: **             none
        !            42: **
        !            43: **     Side Effects:
        !            44: **             none
        !            45: **
        !            46: **     Called By:
        !            47: **             alias
        !            48: **             recipient
        !            49: */
        !            50: 
        !            51: putonq(a, q)
        !            52:        register ADDRESS *a;
        !            53:        register ADDRESS *q;
        !            54: {
        !            55:        if (q->q_prev == NULL)
        !            56:        {
        !            57:                q->q_prev = q->q_next = a;
        !            58:                a->q_prev = NULL;
        !            59:        }
        !            60:        else
        !            61:        {
        !            62:                a->q_prev = q->q_prev;
        !            63:                q->q_prev->q_next = a;
        !            64:                q->q_prev = a;
        !            65:        }
        !            66:        a->q_next = NULL;
        !            67: }
        !            68: /*
        !            69: **  TKOFFQ -- remove address node from queue
        !            70: **
        !            71: **     Takes a node off of a queue, from anyplace in the queue.
        !            72: **
        !            73: **     Parameters:
        !            74: **             a -- the node to remove.
        !            75: **             q -- the queue to remove it from.
        !            76: **
        !            77: **     Returns:
        !            78: **             none
        !            79: **
        !            80: **     Side Effects:
        !            81: **             none
        !            82: **
        !            83: **     Called By:
        !            84: **             alias
        !            85: */
        !            86: 
        !            87: tkoffq(a, q)
        !            88:        register ADDRESS *a;
        !            89:        register ADDRESS *q;
        !            90: {
        !            91:        if (a->q_prev != NULL)
        !            92:                a->q_prev->q_next = a->q_next;
        !            93:        else
        !            94:                q->q_next = a->q_next;
        !            95:        if (a->q_next != NULL)
        !            96:                a->q_next->q_prev = a->q_prev;
        !            97:        else
        !            98:                q->q_prev = a->q_prev;
        !            99: }
        !           100: /*
        !           101: **  SAMEADDR -- Determine if tow addresses are the same
        !           102: **
        !           103: **     This is not just a straight comparison -- if the mailer doesn't
        !           104: **     care about the host we just ignore it, etc.
        !           105: **
        !           106: **     Parameters:
        !           107: **             a, b -- pointers to the internal forms to compare.
        !           108: **             wildflg -- if TRUE, 'a' may have no user specified,
        !           109: **                     in which case it is to match anything.
        !           110: **
        !           111: **     Returns:
        !           112: **             TRUE -- they represent the same mailbox.
        !           113: **             FALSE -- they don't.
        !           114: **
        !           115: **     Side Effects:
        !           116: **             none.
        !           117: **
        !           118: **     Called By:
        !           119: **             recipient
        !           120: **             alias
        !           121: */
        !           122: 
        !           123: bool
        !           124: sameaddr(a, b, wildflg)
        !           125:        register ADDRESS *a;
        !           126:        register ADDRESS *b;
        !           127:        bool wildflg;
        !           128: {
        !           129:        /* if they don't have the same mailer, forget it */
        !           130:        if (a->q_mailer != b->q_mailer)
        !           131:                return (FALSE);
        !           132: 
        !           133:        /* if the user isn't the same, we can drop out */
        !           134:        if ((!wildflg || a->q_user[0] != '\0') && strcmp(a->q_user, b->q_user) != 0)
        !           135:                return (FALSE);
        !           136: 
        !           137:        /* if the mailer ignores hosts, we have succeeded! */
        !           138:        if (bitset(M_NOHOST, Mailer[a->q_mailer]->m_flags))
        !           139:                return (TRUE);
        !           140: 
        !           141:        /* otherwise compare hosts (but be careful for NULL ptrs) */
        !           142:        if (a->q_host == NULL || b->q_host == NULL)
        !           143:                return (FALSE);
        !           144:        if (strcmp(a->q_host, b->q_host) != 0)
        !           145:                return (FALSE);
        !           146: 
        !           147:        return (TRUE);
        !           148: }

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