granicus.if.org Git - postgresql/blob - src/port/win32error.c

   1 /*-------------------------------------------------------------------------
   2  *
   3  * win32error.c
   4  *        Map win32 error codes to errno values
   5  *
   6  * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
   7  *
   8  * IDENTIFICATION
   9  *        src/port/win32error.c
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13
  14 #ifndef FRONTEND
  15 #include "postgres.h"
  16 #else
  17 #include "postgres_fe.h"
  18 #endif
  19
  20 static const struct
  21 {
  22         DWORD           winerr;
  23         int                     doserr;
  24 }                       doserrors[] =
  25
  26 {
  27         {
  28                 ERROR_INVALID_FUNCTION, EINVAL
  29         },
  30         {
  31                 ERROR_FILE_NOT_FOUND, ENOENT
  32         },
  33         {
  34                 ERROR_PATH_NOT_FOUND, ENOENT
  35         },
  36         {
  37                 ERROR_TOO_MANY_OPEN_FILES, EMFILE
  38         },
  39         {
  40                 ERROR_ACCESS_DENIED, EACCES
  41         },
  42         {
  43                 ERROR_INVALID_HANDLE, EBADF
  44         },
  45         {
  46                 ERROR_ARENA_TRASHED, ENOMEM
  47         },
  48         {
  49                 ERROR_NOT_ENOUGH_MEMORY, ENOMEM
  50         },
  51         {
  52                 ERROR_INVALID_BLOCK, ENOMEM
  53         },
  54         {
  55                 ERROR_BAD_ENVIRONMENT, E2BIG
  56         },
  57         {
  58                 ERROR_BAD_FORMAT, ENOEXEC
  59         },
  60         {
  61                 ERROR_INVALID_ACCESS, EINVAL
  62         },
  63         {
  64                 ERROR_INVALID_DATA, EINVAL
  65         },
  66         {
  67                 ERROR_INVALID_DRIVE, ENOENT
  68         },
  69         {
  70                 ERROR_CURRENT_DIRECTORY, EACCES
  71         },
  72         {
  73                 ERROR_NOT_SAME_DEVICE, EXDEV
  74         },
  75         {
  76                 ERROR_NO_MORE_FILES, ENOENT
  77         },
  78         {
  79                 ERROR_LOCK_VIOLATION, EACCES
  80         },
  81         {
  82                 ERROR_SHARING_VIOLATION, EACCES
  83         },
  84         {
  85                 ERROR_BAD_NETPATH, ENOENT
  86         },
  87         {
  88                 ERROR_NETWORK_ACCESS_DENIED, EACCES
  89         },
  90         {
  91                 ERROR_BAD_NET_NAME, ENOENT
  92         },
  93         {
  94                 ERROR_FILE_EXISTS, EEXIST
  95         },
  96         {
  97                 ERROR_CANNOT_MAKE, EACCES
  98         },
  99         {
 100                 ERROR_FAIL_I24, EACCES
 101         },
 102         {
 103                 ERROR_INVALID_PARAMETER, EINVAL
 104         },
 105         {
 106                 ERROR_NO_PROC_SLOTS, EAGAIN
 107         },
 108         {
 109                 ERROR_DRIVE_LOCKED, EACCES
 110         },
 111         {
 112                 ERROR_BROKEN_PIPE, EPIPE
 113         },
 114         {
 115                 ERROR_DISK_FULL, ENOSPC
 116         },
 117         {
 118                 ERROR_INVALID_TARGET_HANDLE, EBADF
 119         },
 120         {
 121                 ERROR_INVALID_HANDLE, EINVAL
 122         },
 123         {
 124                 ERROR_WAIT_NO_CHILDREN, ECHILD
 125         },
 126         {
 127                 ERROR_CHILD_NOT_COMPLETE, ECHILD
 128         },
 129         {
 130                 ERROR_DIRECT_ACCESS_HANDLE, EBADF
 131         },
 132         {
 133                 ERROR_NEGATIVE_SEEK, EINVAL
 134         },
 135         {
 136                 ERROR_SEEK_ON_DEVICE, EACCES
 137         },
 138         {
 139                 ERROR_DIR_NOT_EMPTY, ENOTEMPTY
 140         },
 141         {
 142                 ERROR_NOT_LOCKED, EACCES
 143         },
 144         {
 145                 ERROR_BAD_PATHNAME, ENOENT
 146         },
 147         {
 148                 ERROR_MAX_THRDS_REACHED, EAGAIN
 149         },
 150         {
 151                 ERROR_LOCK_FAILED, EACCES
 152         },
 153         {
 154                 ERROR_ALREADY_EXISTS, EEXIST
 155         },
 156         {
 157                 ERROR_FILENAME_EXCED_RANGE, ENOENT
 158         },
 159         {
 160                 ERROR_NESTING_NOT_ALLOWED, EAGAIN
 161         },
 162         {
 163                 ERROR_NOT_ENOUGH_QUOTA, ENOMEM
 164         },
 165         {
 166                 ERROR_DELETE_PENDING, ENOENT
 167         }
 168 };
 169
 170 void
 171 _dosmaperr(unsigned long e)
 172 {
 173         int                     i;
 174
 175         if (e == 0)
 176         {
 177                 errno = 0;
 178                 return;
 179         }
 180
 181         for (i = 0; i < lengthof(doserrors); i++)
 182         {
 183                 if (doserrors[i].winerr == e)
 184                 {
 185                         int                     doserr = doserrors[i].doserr;
 186
 187 #ifndef FRONTEND
 188                         ereport(DEBUG5,
 189                                         (errmsg_internal("mapped win32 error code %lu to %d",
 190                                                                          e, doserr)));
 191 #elif FRONTEND_DEBUG
 192                         fprintf(stderr, "mapped win32 error code %lu to %d", e, doserr);
 193 #endif
 194                         errno = doserr;
 195                         return;
 196                 }
 197         }
 198
 199 #ifndef FRONTEND
 200         ereport(LOG,
 201                         (errmsg_internal("unrecognized win32 error code: %lu",
 202                                                          e)));
 203 #else
 204         fprintf(stderr, "unrecognized win32 error code: %lu", e);
 205 #endif
 206
 207         errno = EINVAL;
 208         return;
 209 }