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
16SM_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
28int
29dsntoexitstat(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
150char *
151exitstat(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