1/* 2 * Copyright (c) 2001, 2003 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#include <sm/gen.h> 14SM_RCSID("@(#)$Id: errstring.c,v 1.20 2013-11-22 20:51:42 ca 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 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 49const char * 50sm_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 204 205# ifdef LDAP_URL_ERR_PARAM 206 case E_LDAPURLBASE + LDAP_URL_ERR_PARAM: 207 return "LDAP URL parameter is bad"; 208# endif 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 214 215# ifdef LDAP_URL_ERR_BADENCLOSURE 216 case E_LDAPURLBASE + LDAP_URL_ERR_BADENCLOSURE: 217 return "LDAP URL is missing trailing \">\""; 218# endif 219 220# ifdef LDAP_URL_ERR_BADURL 221 case E_LDAPURLBASE + LDAP_URL_ERR_BADURL: 222 return "LDAP URL is bad"; 223# endif 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 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 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 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 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 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 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 260 261#endif /* LDAPMAP */ 262 } 263 264#if LDAPMAP 265 266 /* 267 ** LDAP error messages. Handle small negative errors from 268 ** libldap (in the range -E_LDAP_SHIM to zero, offset by E_LDAPBASE) 269 ** as well. 270 */ 271 272 if (errnum >= E_LDAPBASE - E_LDAP_SHIM) 273 return ldap_err2string(errnum - E_LDAPBASE); 274#endif /* LDAPMAP */ 275 276 ret = strerror(errnum); 277 if (ret == NULL) 278 { 279 static char buf[30]; 280 281 (void) sm_snprintf(buf, sizeof buf, "Error %d", errnum); 282 return buf; 283 } 284 return ret; 285} 286