external/ibm-public/postfix/dist/src/global/verify.c

   1 /*      $NetBSD$        */
   2
   3 /*++
   4 /* NAME
   5 /*      verify 3
   6 /* SUMMARY
   7 /*      update verify database
   8 /* SYNOPSIS
   9 /*      #include <verify.h>
  10 /*
  11 /*      int     verify_append(queue_id, stats, recipient, relay, dsn,
  12 /*                              verify_status)
  13 /*      const char *queue_id;
  14 /*      MSG_STATS *stats;
  15 /*      RECIPIENT *recipient;
  16 /*      const char *relay;
  17 /*      DSN     *dsn;
  18 /*      int     verify_status;
  19 /* DESCRIPTION
  20 /*      This module implements an impedance adaptor between the
  21 /*      verify_clnt interface and the interface expected by the
  22 /*      bounce/defer/sent modules.
  23 /*
  24 /*      verify_append() updates the address verification database
  25 /*      and logs the action to the mailer logfile.
  26 /*
  27 /*      Arguments:
  28 /* .IP queue_id
  29 /*      The message queue id.
  30 /* .IP stats
  31 /*      Time stamps from different message delivery stages
  32 /*      and session reuse count.
  33 /* .IP recipient
  34 /*      Recipient information. See recipient_list(3).
  35 /* .IP relay
  36 /*      Name of the host we're talking to.
  37 /* .IP dsn
  38 /*      Delivery status information. See dsn(3).
  39 /*      The action is one of "deliverable" or "undeliverable".
  40 /* .IP verify_status
  41 /*      One of the following recipient verification status codes:
  42 /* .RS
  43 /* .IP DEL_REQ_RCPT_STAT_OK
  44 /*      Successful delivery.
  45 /* .IP DEL_REQ_RCPT_STAT_DEFER
  46 /*      Temporary delivery error.
  47 /* .IP DEL_REQ_RCPT_STAT_BOUNCE
  48 /*      Hard delivery error.
  49 /* .RE
  50 /* DIAGNOSTICS
  51 /*      A non-zero result means the operation failed.
  52 /*
  53 /*      Fatal: out of memory.
  54 /* BUGS
  55 /*      Should be replaced by routines with an attribute-value based
  56 /*      interface instead of an interface that uses a rigid argument list.
  57 /* LICENSE
  58 /* .ad
  59 /* .fi
  60 /*      The Secure Mailer license must be distributed with this software.
  61 /* AUTHOR(S)
  62 /*      Wietse Venema
  63 /*      IBM T.J. Watson Research
  64 /*      P.O. Box 704
  65 /*      Yorktown Heights, NY 10598, USA
  66 /*--*/
  67
  68 /* System library. */
  69
  70 #include <sys_defs.h>
  71 #include <string.h>
  72
  73 #ifdef STRCASECMP_IN_STRINGS_H
  74 #include <strings.h>
  75 #endif
  76
  77 /* Utility library. */
  78
  79 #include <msg.h>
  80 #include <vstring.h>
  81
  82 /* Global library. */
  83
  84 #include <mail_params.h>
  85 #include <mail_proto.h>
  86 #include <verify_clnt.h>
  87 #include <log_adhoc.h>
  88 #include <verify.h>
  89
  90 /* verify_append - update address verification database */
  91
  92 int     verify_append(const char *queue_id, MSG_STATS *stats,
  93                               RECIPIENT *recipient, const char *relay,
  94                               DSN *dsn, int vrfy_stat)
  95 {
  96     int     req_stat;
  97     DSN     my_dsn = *dsn;
  98
  99     /*
 100      * Impedance adaptor between bounce/defer/sent and verify_clnt.
 101      *
 102      * XXX No DSN check; this routine is called from bounce/defer/sent, which
 103      * know what the DSN initial digit should look like.
 104      *
 105      * XXX vrfy_stat is competely redundant because of dsn.
 106      */
 107     if (var_verify_neg_cache || vrfy_stat == DEL_RCPT_STAT_OK) {
 108         req_stat = verify_clnt_update(recipient->orig_addr, vrfy_stat,
 109                                       my_dsn.reason);
 110         if (req_stat == VRFY_STAT_OK && strcasecmp(recipient->address,
 111                                                  recipient->orig_addr) != 0)
 112             req_stat = verify_clnt_update(recipient->address, vrfy_stat,
 113                                           my_dsn.reason);
 114     } else {
 115         my_dsn.action = "undeliverable-but-not-cached";
 116         req_stat = VRFY_STAT_OK;
 117     }
 118     if (req_stat == VRFY_STAT_OK) {
 119         log_adhoc(queue_id, stats, recipient, relay, dsn, my_dsn.action);
 120         req_stat = 0;
 121     } else {
 122         msg_warn("%s: %s service failure", queue_id, var_verify_service);
 123         req_stat = -1;
 124     }
 125     return (req_stat);
 126 }