contrib/sendmail-8.14/sendmail/sysexits.c

   1 /*
   2  * Copyright (c) 1998-2001 Sendmail, Inc. and its suppliers.
   3  *      All rights reserved.
   4  * Copyright (c) 1983, 1995-1997 Eric P. Allman.  All rights reserved.
   5  * Copyright (c) 1988, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * By using this file, you agree to the terms and conditions set
   9  * forth in the LICENSE file which can be found at the top level of
  10  * the sendmail distribution.
  11  *
  12  */
  13
  14 #include <sendmail.h>
  15
  16 SM_RCSID("@(#)$Id: sysexits.c,v 8.34 2002/09/09 02:43:00 gshapiro Exp $")
  17
  18 /*
  19 **  DSNTOEXITSTAT -- convert DSN-style error code to EX_ style.
  20 **
  21 **      Parameters:
  22 **              dsncode -- the text of the DSN-style code.
  23 **
  24 **      Returns:
  25 **              The corresponding exit status.
  26 */
  27
  28 int
  29 dsntoexitstat(dsncode)
  30         char *dsncode;
  31 {
  32         int code2, code3;
  33
  34         /* first the easy cases.... */
  35         if (*dsncode == '2')
  36                 return EX_OK;
  37         if (*dsncode == '4')
  38                 return EX_TEMPFAIL;
  39
  40         /* reject other illegal values */
  41         if (*dsncode != '5')
  42                 return EX_CONFIG;
  43
  44         /* now decode the other two field parts */
  45         if (*++dsncode == '.')
  46                 dsncode++;
  47         code2 = atoi(dsncode);
  48         while (*dsncode != '\0' && *dsncode != '.')
  49                 dsncode++;
  50         if (*dsncode != '\0')
  51                 dsncode++;
  52         code3 = atoi(dsncode);
  53
  54         /* and do a nested switch to work them out */
  55         switch (code2)
  56         {
  57           case 0:       /* Other or Undefined status */
  58                 return EX_UNAVAILABLE;
  59
  60           case 1:       /* Address Status */
  61                 switch (code3)
  62                 {
  63                   case 0:       /* Other Address Status */
  64                         return EX_DATAERR;
  65
  66                   case 1:       /* Bad destination mailbox address */
  67                   case 6:       /* Mailbox has moved, No forwarding address */
  68                         return EX_NOUSER;
  69
  70                   case 2:       /* Bad destination system address */
  71                   case 8:       /* Bad senders system address */
  72                         return EX_NOHOST;
  73
  74                   case 3:       /* Bad destination mailbox address syntax */
  75                   case 7:       /* Bad senders mailbox address syntax */
  76                         return EX_USAGE;
  77
  78                   case 4:       /* Destination mailbox address ambiguous */
  79                         return EX_UNAVAILABLE;
  80
  81                   case 5:       /* Destination address valid */
  82                         /* According to RFC1893, this can't happen */
  83                         return EX_CONFIG;
  84                 }
  85                 break;
  86
  87           case 2:       /* Mailbox Status */
  88                 switch (code3)
  89                 {
  90                   case 0:       /* Other or Undefined mailbox status */
  91                   case 1:       /* Mailbox disabled, not accepting messages */
  92                   case 2:       /* Mailbox full */
  93                   case 4:       /* Mailing list expansion problem */
  94                         return EX_UNAVAILABLE;
  95
  96                   case 3:       /* Message length exceeds administrative lim */
  97                         return EX_DATAERR;
  98                 }
  99                 break;
 100
 101           case 3:       /* System Status */
 102                 return EX_OSERR;
 103
 104           case 4:       /* Network and Routing Status */
 105                 switch (code3)
 106                 {
 107                   case 0:       /* Other or undefined network or routing stat */
 108                         return EX_IOERR;
 109
 110                   case 1:       /* No answer from host */
 111                   case 3:       /* Routing server failure */
 112                   case 5:       /* Network congestion */
 113                         return EX_TEMPFAIL;
 114
 115                   case 2:       /* Bad connection */
 116                         return EX_IOERR;
 117
 118                   case 4:       /* Unable to route */
 119                         return EX_PROTOCOL;
 120
 121                   case 6:       /* Routing loop detected */
 122                         return EX_CONFIG;
 123
 124                   case 7:       /* Delivery time expired */
 125                         return EX_UNAVAILABLE;
 126                 }
 127                 break;
 128
 129           case 5:       /* Protocol Status */
 130                 return EX_PROTOCOL;
 131
 132           case 6:       /* Message Content or Media Status */
 133                 return EX_UNAVAILABLE;
 134
 135           case 7:       /* Security Status */
 136                 return EX_DATAERR;
 137         }
 138         return EX_UNAVAILABLE;
 139 }
 140 /*
 141 **  EXITSTAT -- convert EX_ value to error text.
 142 **
 143 **      Parameters:
 144 **              excode -- rstatus which might consists of an EX_* value.
 145 **
 146 **      Returns:
 147 **              The corresponding error text or the original string.
 148 */
 149
 150 char *
 151 exitstat(excode)
 152         char *excode;
 153 {
 154         char *c;
 155         int i;
 156         char *exitmsg;
 157
 158         if (excode == NULL || *excode == '\0')
 159                 return excode;
 160         i = (int) strtol(excode, &c, 10);
 161         if (*c != '\0')
 162                 return excode;
 163         exitmsg = sm_sysexitmsg(i);
 164         if (exitmsg != NULL)
 165                 return exitmsg;
 166         return excode;
 167 }