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 8.33.4.1 2002/09/09 02:42:37 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 *
exitstat(excode)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