win32/error.c

   1 /*
   2  * Win32 kernel functions
   3  *
   4  * Copyright 1995 Martin von Loewis and Cameron Heide
   5  */
   6
   7 #include <stdio.h>
   8 #include <errno.h>
   9 #include "windows.h"
  10 #include "winerror.h"
  11 #include "stddebug.h"
  12 #include "debug.h"
  13
  14 /* The errno_xlat_table contains the errno-to-Win32 error
  15  * mapping.  Since this is a single table, it can't easily
  16  * take into account function-specific differences, so there
  17  * will probably be quite a few points where we don't exactly
  18  * match what NT would return.  Then again, neither does
  19  * Windows 95. :-)
  20  */
  21 typedef struct {
  22     int         errno;
  23     DWORD       win32err;
  24 } ERRNO_XLAT_TABLE;
  25
  26 /* The table looks pretty ugly due to the preprocessor stuff,
  27  * but I honestly have no idea how many of these values are
  28  * portable.  I'm not even sure how many of them are even
  29  * used at all. :-)
  30  */
  31 static ERRNO_XLAT_TABLE errno_xlat_table[] = {
  32 #if defined(EPERM)
  33     {   EPERM,          ERROR_ACCESS_DENIED             },
  34 #endif
  35 #if defined(ENOENT)
  36     {   ENOENT,         ERROR_FILE_NOT_FOUND            },
  37 #endif
  38 #if defined(ESRCH)
  39     {   ESRCH,          ERROR_INVALID_PARAMETER         },
  40 #endif
  41 #if defined(EIO)
  42     {   EIO,            ERROR_IO_DEVICE                 },
  43 #endif
  44 #if defined(ENOEXEC)
  45     {   ENOEXEC,        ERROR_BAD_FORMAT                },
  46 #endif
  47 #if defined(EBADF)
  48     {   EBADF,          ERROR_INVALID_HANDLE            },
  49 #endif
  50 #if defined(ENOMEM)
  51     {   ENOMEM,         ERROR_OUTOFMEMORY               },
  52 #endif
  53 #if defined(EACCES)
  54     {   EACCES,         ERROR_ACCESS_DENIED             },
  55 #endif
  56 #if defined(EBUSY)
  57     {   EBUSY,          ERROR_BUSY                      },
  58 #endif
  59 #if defined(EEXIST)
  60     {   EEXIST,         ERROR_FILE_EXISTS               },
  61 #endif
  62 #if defined(ENODEV)
  63     {   ENODEV,         ERROR_BAD_DEVICE                },
  64 #endif
  65 #if defined(EINVAL)
  66     {   EINVAL,         ERROR_INVALID_PARAMETER         },
  67 #endif
  68 #if defined(EMFILE)
  69     {   EMFILE,         ERROR_TOO_MANY_OPEN_FILES       },
  70 #endif
  71 #if defined(ETXTBSY)
  72     {   ETXTBSY,        ERROR_BUSY,                     },
  73 #endif
  74 #if defined(ENOSPC)
  75     {   ENOSPC,         ERROR_DISK_FULL                 },
  76 #endif
  77 #if defined(ESPIPE)
  78     {   ESPIPE,         ERROR_SEEK_ON_DEVICE            },
  79 #endif
  80 #if defined(EPIPE)
  81     {   EPIPE,          ERROR_BROKEN_PIPE               },
  82 #endif
  83 #if defined(EDEADLK)
  84     {   EDEADLK,        ERROR_POSSIBLE_DEADLOCK         },
  85 #endif
  86 #if defined(ENAMETOOLONG)
  87     {   ENAMETOOLONG,   ERROR_FILENAME_EXCED_RANGE      },
  88 #endif
  89 #if defined(ENOTEMPTY)
  90     {   ENOTEMPTY,      ERROR_DIR_NOT_EMPTY             },
  91 #endif
  92     {   -1,             0                               }
  93 };
  94
  95 DWORD ErrnoToLastError(int errno_num)
  96 {
  97     DWORD rc = ERROR_UNKNOWN;
  98     int i = 0;
  99
 100     while(errno_xlat_table[i].errno != -1)
 101     {
 102         if(errno_xlat_table[i].errno == errno_num)
 103         {
 104             rc = errno_xlat_table[i].win32err;
 105             break;
 106         }
 107         i++;
 108     }
 109
 110     return rc;
 111 }