src/port/win32error.c

   1 /*-------------------------------------------------------------------------
   2  *
   3  * win32error.c
   4  *        Map win32 error codes to errno values
   5  *
   6  * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
   7  *
   8  * IDENTIFICATION
   9  *        $PostgreSQL$
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13
  14 #include "postgres.h"
  15
  16 static const struct
  17 {
  18         DWORD           winerr;
  19         int                     doserr;
  20 }       doserrors[] =
  21
  22 {
  23         {
  24                 ERROR_INVALID_FUNCTION, EINVAL
  25         },
  26         {
  27                 ERROR_FILE_NOT_FOUND, ENOENT
  28         },
  29         {
  30                 ERROR_PATH_NOT_FOUND, ENOENT
  31         },
  32         {
  33                 ERROR_TOO_MANY_OPEN_FILES, EMFILE
  34         },
  35         {
  36                 ERROR_ACCESS_DENIED, EACCES
  37         },
  38         {
  39                 ERROR_INVALID_HANDLE, EBADF
  40         },
  41         {
  42                 ERROR_ARENA_TRASHED, ENOMEM
  43         },
  44         {
  45                 ERROR_NOT_ENOUGH_MEMORY, ENOMEM
  46         },
  47         {
  48                 ERROR_INVALID_BLOCK, ENOMEM
  49         },
  50         {
  51                 ERROR_BAD_ENVIRONMENT, E2BIG
  52         },
  53         {
  54                 ERROR_BAD_FORMAT, ENOEXEC
  55         },
  56         {
  57                 ERROR_INVALID_ACCESS, EINVAL
  58         },
  59         {
  60                 ERROR_INVALID_DATA, EINVAL
  61         },
  62         {
  63                 ERROR_INVALID_DRIVE, ENOENT
  64         },
  65         {
  66                 ERROR_CURRENT_DIRECTORY, EACCES
  67         },
  68         {
  69                 ERROR_NOT_SAME_DEVICE, EXDEV
  70         },
  71         {
  72                 ERROR_NO_MORE_FILES, ENOENT
  73         },
  74         {
  75                 ERROR_LOCK_VIOLATION, EACCES
  76         },
  77         {
  78                 ERROR_SHARING_VIOLATION, EACCES
  79         },
  80         {
  81                 ERROR_BAD_NETPATH, ENOENT
  82         },
  83         {
  84                 ERROR_NETWORK_ACCESS_DENIED, EACCES
  85         },
  86         {
  87                 ERROR_BAD_NET_NAME, ENOENT
  88         },
  89         {
  90                 ERROR_FILE_EXISTS, EEXIST
  91         },
  92         {
  93                 ERROR_CANNOT_MAKE, EACCES
  94         },
  95         {
  96                 ERROR_FAIL_I24, EACCES
  97         },
  98         {
  99                 ERROR_INVALID_PARAMETER, EINVAL
 100         },
 101         {
 102                 ERROR_NO_PROC_SLOTS, EAGAIN
 103         },
 104         {
 105                 ERROR_DRIVE_LOCKED, EACCES
 106         },
 107         {
 108                 ERROR_BROKEN_PIPE, EPIPE
 109         },
 110         {
 111                 ERROR_DISK_FULL, ENOSPC
 112         },
 113         {
 114                 ERROR_INVALID_TARGET_HANDLE, EBADF
 115         },
 116         {
 117                 ERROR_INVALID_HANDLE, EINVAL
 118         },
 119         {
 120                 ERROR_WAIT_NO_CHILDREN, ECHILD
 121         },
 122         {
 123                 ERROR_CHILD_NOT_COMPLETE, ECHILD
 124         },
 125         {
 126                 ERROR_DIRECT_ACCESS_HANDLE, EBADF
 127         },
 128         {
 129                 ERROR_NEGATIVE_SEEK, EINVAL
 130         },
 131         {
 132                 ERROR_SEEK_ON_DEVICE, EACCES
 133         },
 134         {
 135                 ERROR_DIR_NOT_EMPTY, ENOTEMPTY
 136         },
 137         {
 138                 ERROR_NOT_LOCKED, EACCES
 139         },
 140         {
 141                 ERROR_BAD_PATHNAME, ENOENT
 142         },
 143         {
 144                 ERROR_MAX_THRDS_REACHED, EAGAIN
 145         },
 146         {
 147                 ERROR_LOCK_FAILED, EACCES
 148         },
 149         {
 150                 ERROR_ALREADY_EXISTS, EEXIST
 151         },
 152         {
 153                 ERROR_FILENAME_EXCED_RANGE, ENOENT
 154         },
 155         {
 156                 ERROR_NESTING_NOT_ALLOWED, EAGAIN
 157         },
 158         {
 159                 ERROR_NOT_ENOUGH_QUOTA, ENOMEM
 160         }
 161 };
 162
 163 void
 164 _dosmaperr(unsigned long e)
 165 {
 166         int                     i;
 167
 168         if (e == 0)
 169         {
 170                 errno = 0;
 171                 return;
 172         }
 173
 174         for (i = 0; i < lengthof(doserrors); i++)
 175         {
 176                 if (doserrors[i].winerr == e)
 177                 {
 178                         errno = doserrors[i].doserr;
 179 #ifndef FRONTEND
 180                         ereport(DEBUG5,
 181                                         (errmsg_internal("mapped win32 error code %lu to %d",
 182                                                                          e, errno)));
 183 #elif FRONTEND_DEBUG
 184                         fprintf(stderr, _("mapped win32 error code %lu to %d"), e, errno);
 185 #endif
 186                         return;
 187                 }
 188         }
 189
 190 #ifndef FRONTEND
 191         ereport(LOG,
 192                         (errmsg_internal("unrecognized win32 error code: %lu",
 193                                                          e)));
 194 #else
 195         fprintf(stderr, _("unrecognized win32 error code: %lu"), e);
 196 #endif
 197
 198         errno = EINVAL;
 199         return;
 200 }