contrib/sendmail-8.13.7/libsm/errstring.c

   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 }