Annotation of 43BSD/usr.lib/sendmail/aux/addr.c, revision 1.1

1.1     ! root        1: /*
        !             2: **  Sendmail
        !             3: **  Copyright (c) 1983  Eric P. Allman
        !             4: **  Berkeley, California
        !             5: **
        !             6: **  Copyright (c) 1983 Regents of the University of California.
        !             7: **  All rights reserved.  The Berkeley software License Agreement
        !             8: **  specifies the terms and conditions for redistribution.
        !             9: */
        !            10: 
        !            11: #ifndef lint
        !            12: static char    SccsId[] = "@(#)addr.c  5.1 (Berkeley) 6/7/85";
        !            13: #endif not lint
        !            14: 
        !            15: # include "postbox.h"
        !            16: 
        !            17: /*
        !            18: **  PUTONQ -- put an address node on the end of a queue
        !            19: **
        !            20: **     Parameters:
        !            21: **             a -- the address to put on the queue.
        !            22: **             q -- the queue to put it on.
        !            23: **
        !            24: **     Returns:
        !            25: **             none
        !            26: **
        !            27: **     Side Effects:
        !            28: **             none
        !            29: **
        !            30: **     Called By:
        !            31: **             alias
        !            32: **             recipient
        !            33: */
        !            34: 
        !            35: putonq(a, q)
        !            36:        register ADDRESS *a;
        !            37:        register ADDRESS *q;
        !            38: {
        !            39:        if (q->q_prev == NULL)
        !            40:        {
        !            41:                q->q_prev = q->q_next = a;
        !            42:                a->q_prev = NULL;
        !            43:        }
        !            44:        else
        !            45:        {
        !            46:                a->q_prev = q->q_prev;
        !            47:                q->q_prev->q_next = a;
        !            48:                q->q_prev = a;
        !            49:        }
        !            50:        a->q_next = NULL;
        !            51: }
        !            52: /*
        !            53: **  TKOFFQ -- remove address node from queue
        !            54: **
        !            55: **     Takes a node off of a queue, from anyplace in the queue.
        !            56: **
        !            57: **     Parameters:
        !            58: **             a -- the node to remove.
        !            59: **             q -- the queue to remove it from.
        !            60: **
        !            61: **     Returns:
        !            62: **             none
        !            63: **
        !            64: **     Side Effects:
        !            65: **             none
        !            66: **
        !            67: **     Called By:
        !            68: **             alias
        !            69: */
        !            70: 
        !            71: tkoffq(a, q)
        !            72:        register ADDRESS *a;
        !            73:        register ADDRESS *q;
        !            74: {
        !            75:        if (a->q_prev != NULL)
        !            76:                a->q_prev->q_next = a->q_next;
        !            77:        else
        !            78:                q->q_next = a->q_next;
        !            79:        if (a->q_next != NULL)
        !            80:                a->q_next->q_prev = a->q_prev;
        !            81:        else
        !            82:                q->q_prev = a->q_prev;
        !            83: }
        !            84: /*
        !            85: **  SAMEADDR -- Determine if tow addresses are the same
        !            86: **
        !            87: **     This is not just a straight comparison -- if the mailer doesn't
        !            88: **     care about the host we just ignore it, etc.
        !            89: **
        !            90: **     Parameters:
        !            91: **             a, b -- pointers to the internal forms to compare.
        !            92: **             wildflg -- if TRUE, 'a' may have no user specified,
        !            93: **                     in which case it is to match anything.
        !            94: **
        !            95: **     Returns:
        !            96: **             TRUE -- they represent the same mailbox.
        !            97: **             FALSE -- they don't.
        !            98: **
        !            99: **     Side Effects:
        !           100: **             none.
        !           101: **
        !           102: **     Called By:
        !           103: **             recipient
        !           104: **             alias
        !           105: */
        !           106: 
        !           107: bool
        !           108: sameaddr(a, b, wildflg)
        !           109:        register ADDRESS *a;
        !           110:        register ADDRESS *b;
        !           111:        bool wildflg;
        !           112: {
        !           113:        /* if they don't have the same mailer, forget it */
        !           114:        if (a->q_mailer != b->q_mailer)
        !           115:                return (FALSE);
        !           116: 
        !           117:        /* if the user isn't the same, we can drop out */
        !           118:        if ((!wildflg || a->q_user[0] != '\0') && strcmp(a->q_user, b->q_user) != 0)
        !           119:                return (FALSE);
        !           120: 
        !           121:        /* if the mailer ignores hosts, we have succeeded! */
        !           122:        if (bitset(M_NOHOST, Mailer[a->q_mailer]->m_flags))
        !           123:                return (TRUE);
        !           124: 
        !           125:        /* otherwise compare hosts (but be careful for NULL ptrs) */
        !           126:        if (a->q_host == NULL || b->q_host == NULL)
        !           127:                return (FALSE);
        !           128:        if (strcmp(a->q_host, b->q_host) != 0)
        !           129:                return (FALSE);
        !           130: 
        !           131:        return (TRUE);
        !           132: }

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