1 /* 2 * Copyright (c) 1998-2001 Proofpoint, 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 8.35 2013-11-22 20:51:57 ca 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 } 168