xref: /illumos-gate/usr/src/cmd/sendmail/libsm/errstring.c (revision 2a8bcb4efb45d99ac41c94a75c396b362c414f7f)
1 /*
2  * Copyright (c) 2001, 2003 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 #include <sm/gen.h>
14 SM_RCSID("@(#)$Id: errstring.c,v 1.19 2003/12/10 03:53:05 gshapiro Exp $")
15 
16 #include <errno.h>
17 #include <stdio.h>	/* sys_errlist, on some platforms */
18 
19 #include <sm/io.h>	/* sm_snprintf */
20 #include <sm/string.h>
21 #include <sm/errstring.h>
22 
23 #if NAMED_BIND
24 # include <netdb.h>
25 #endif
26 
27 #if LDAPMAP
28 # include <lber.h>
29 # include <ldap.h>			/* for LDAP error codes */
30 #endif /* LDAPMAP */
31 
32 /*
33 **  Notice: this file is used by libmilter. Please try to avoid
34 **	using libsm specific functions.
35 */
36 
37 /*
38 **  SM_ERRSTRING -- return string description of error code
39 **
40 **	Parameters:
41 **		errnum -- the error number to translate
42 **
43 **	Returns:
44 **		A string description of errnum.
45 **
46 **	Note: this may point to a local (static) buffer.
47 */
48 
49 const char *
50 sm_errstring(errnum)
51 	int errnum;
52 {
53 	char *ret;
54 
55 
56 	switch (errnum)
57 	{
58 	  case EPERM:
59 		/* SunOS gives "Not owner" -- this is the POSIX message */
60 		return "Operation not permitted";
61 
62 	/*
63 	**  Error messages used internally in sendmail.
64 	*/
65 
66 	  case E_SM_OPENTIMEOUT:
67 		return "Timeout on file open";
68 
69 	  case E_SM_NOSLINK:
70 		return "Symbolic links not allowed";
71 
72 	  case E_SM_NOHLINK:
73 		return "Hard links not allowed";
74 
75 	  case E_SM_REGONLY:
76 		return "Regular files only";
77 
78 	  case E_SM_ISEXEC:
79 		return "Executable files not allowed";
80 
81 	  case E_SM_WWDIR:
82 		return "World writable directory";
83 
84 	  case E_SM_GWDIR:
85 		return "Group writable directory";
86 
87 	  case E_SM_FILECHANGE:
88 		return "File changed after open";
89 
90 	  case E_SM_WWFILE:
91 		return "World writable file";
92 
93 	  case E_SM_GWFILE:
94 		return "Group writable file";
95 
96 	  case E_SM_GRFILE:
97 		return "Group readable file";
98 
99 	  case E_SM_WRFILE:
100 		return "World readable file";
101 
102 	/*
103 	**  DNS error messages.
104 	*/
105 
106 #if NAMED_BIND
107 	  case HOST_NOT_FOUND + E_DNSBASE:
108 		return "Name server: host not found";
109 
110 	  case TRY_AGAIN + E_DNSBASE:
111 		return "Name server: host name lookup failure";
112 
113 	  case NO_RECOVERY + E_DNSBASE:
114 		return "Name server: non-recoverable error";
115 
116 	  case NO_DATA + E_DNSBASE:
117 		return "Name server: no data known";
118 #endif /* NAMED_BIND */
119 
120 	/*
121 	**  libsmdb error messages.
122 	*/
123 
124 	  case SMDBE_MALLOC:
125 		return "Memory allocation failed";
126 
127 	  case SMDBE_GDBM_IS_BAD:
128 		return "GDBM is not supported";
129 
130 	  case SMDBE_UNSUPPORTED:
131 		return "Unsupported action";
132 
133 	  case SMDBE_DUPLICATE:
134 		return "Key already exists";
135 
136 	  case SMDBE_BAD_OPEN:
137 		return "Database open failed";
138 
139 	  case SMDBE_NOT_FOUND:
140 		return "Key not found";
141 
142 	  case SMDBE_UNKNOWN_DB_TYPE:
143 		return "Unknown database type";
144 
145 	  case SMDBE_UNSUPPORTED_DB_TYPE:
146 		return "Support for database type not compiled into this program";
147 
148 	  case SMDBE_INCOMPLETE:
149 		return "DB sync did not finish";
150 
151 	  case SMDBE_KEY_EMPTY:
152 		return "Key is empty";
153 
154 	  case SMDBE_KEY_EXIST:
155 		return "Key already exists";
156 
157 	  case SMDBE_LOCK_DEADLOCK:
158 		return "Locker killed to resolve deadlock";
159 
160 	  case SMDBE_LOCK_NOT_GRANTED:
161 		return "Lock unavailable";
162 
163 	  case SMDBE_LOCK_NOT_HELD:
164 		return "Lock not held by locker";
165 
166 	  case SMDBE_RUN_RECOVERY:
167 		return "Database panic, run recovery";
168 
169 	  case SMDBE_IO_ERROR:
170 		return "I/O error";
171 
172 	  case SMDBE_READ_ONLY:
173 		return "Database opened read-only";
174 
175 	  case SMDBE_DB_NAME_TOO_LONG:
176 		return "Name too long";
177 
178 	  case SMDBE_INVALID_PARAMETER:
179 		return "Invalid parameter";
180 
181 	  case SMDBE_ONLY_SUPPORTS_ONE_CURSOR:
182 		return "Only one cursor allowed";
183 
184 	  case SMDBE_NOT_A_VALID_CURSOR:
185 		return "Invalid cursor";
186 
187 	  case SMDBE_OLD_VERSION:
188 		return "Berkeley DB file is an old version, recreate it";
189 
190 	  case SMDBE_VERSION_MISMATCH:
191 		return "Berkeley DB version mismatch between include file and library";
192 
193 #if LDAPMAP
194 
195 	/*
196 	**  LDAP URL error messages.
197 	*/
198 
199 	/* OpenLDAP errors */
200 # ifdef LDAP_URL_ERR_MEM
201 	  case E_LDAPURLBASE + LDAP_URL_ERR_MEM:
202 		return "LDAP URL can't allocate memory space";
203 # endif /* LDAP_URL_ERR_MEM */
204 
205 # ifdef LDAP_URL_ERR_PARAM
206 	  case E_LDAPURLBASE + LDAP_URL_ERR_PARAM:
207 		return "LDAP URL parameter is bad";
208 # endif /* LDAP_URL_ERR_PARAM */
209 
210 # ifdef LDAP_URL_ERR_BADSCHEME
211 	  case E_LDAPURLBASE + LDAP_URL_ERR_BADSCHEME:
212 		return "LDAP URL doesn't begin with \"ldap[si]://\"";
213 # endif /* LDAP_URL_ERR_BADSCHEME */
214 
215 # ifdef LDAP_URL_ERR_BADENCLOSURE
216 	  case E_LDAPURLBASE + LDAP_URL_ERR_BADENCLOSURE:
217 		return "LDAP URL is missing trailing \">\"";
218 # endif /* LDAP_URL_ERR_BADENCLOSURE */
219 
220 # ifdef LDAP_URL_ERR_BADURL
221 	  case E_LDAPURLBASE + LDAP_URL_ERR_BADURL:
222 		return "LDAP URL is bad";
223 # endif /* LDAP_URL_ERR_BADURL */
224 
225 # ifdef LDAP_URL_ERR_BADHOST
226 	  case E_LDAPURLBASE + LDAP_URL_ERR_BADHOST:
227 		return "LDAP URL host port is bad";
228 # endif /* LDAP_URL_ERR_BADHOST */
229 
230 # ifdef LDAP_URL_ERR_BADATTRS
231 	  case E_LDAPURLBASE + LDAP_URL_ERR_BADATTRS:
232 		return "LDAP URL bad (or missing) attributes";
233 # endif /* LDAP_URL_ERR_BADATTRS */
234 
235 # ifdef LDAP_URL_ERR_BADSCOPE
236 	  case E_LDAPURLBASE + LDAP_URL_ERR_BADSCOPE:
237 		return "LDAP URL scope string is invalid (or missing)";
238 # endif /* LDAP_URL_ERR_BADSCOPE */
239 
240 # ifdef LDAP_URL_ERR_BADFILTER
241 	  case E_LDAPURLBASE + LDAP_URL_ERR_BADFILTER:
242 		return "LDAP URL bad or missing filter";
243 # endif /* LDAP_URL_ERR_BADFILTER */
244 
245 # ifdef LDAP_URL_ERR_BADEXTS
246 	  case E_LDAPURLBASE + LDAP_URL_ERR_BADEXTS:
247 		return "LDAP URL bad or missing extensions";
248 # endif /* LDAP_URL_ERR_BADEXTS */
249 
250 	/* Sun LDAP errors */
251 # ifdef LDAP_URL_ERR_NOTLDAP
252 	  case E_LDAPURLBASE + LDAP_URL_ERR_NOTLDAP:
253 		return "LDAP URL doesn't begin with \"ldap://\"";
254 # endif /* LDAP_URL_ERR_NOTLDAP */
255 
256 # ifdef LDAP_URL_ERR_NODN
257 	  case E_LDAPURLBASE + LDAP_URL_ERR_NODN:
258 		return "LDAP URL has no DN (required)";
259 # endif /* LDAP_URL_ERR_NODN */
260 
261 #endif /* LDAPMAP */
262 	}
263 
264 #if LDAPMAP
265 
266 	/*
267 	**  LDAP error messages.
268 	*/
269 
270 	if (errnum >= E_LDAPBASE)
271 		return ldap_err2string(errnum - E_LDAPBASE);
272 #endif /* LDAPMAP */
273 
274 	ret = strerror(errnum);
275 	if (ret == NULL)
276 	{
277 		static char buf[30];
278 
279 		(void) sm_snprintf(buf, sizeof buf, "Error %d", errnum);
280 		return buf;
281 	}
282 	return ret;
283 }
284