dlls/msvcrt/errno.c

   1 /*
   2  * msvcrt.dll errno functions
   3  *
   4  * Copyright 2000 Jon Griffiths
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdio.h>
  22 #include <string.h>
  23
  24 #include "msvcrt.h"
  25 #include "wine/debug.h"
  26
  27 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  28
  29
  30 /* INTERNAL: Set the crt and dos errno's from the OS error given. */
  31 void msvcrt_set_errno(int err)
  32 {
  33   int *errno = MSVCRT__errno();
  34   unsigned long *doserrno = MSVCRT___doserrno();
  35
  36   *doserrno = err;
  37
  38   switch(err)
  39   {
  40 #define ERR_CASE(oserr) case oserr:
  41 #define ERR_MAPS(oserr,crterr) case oserr:*errno = crterr;break;
  42     ERR_CASE(ERROR_ACCESS_DENIED)
  43     ERR_CASE(ERROR_NETWORK_ACCESS_DENIED)
  44     ERR_CASE(ERROR_CANNOT_MAKE)
  45     ERR_CASE(ERROR_SEEK_ON_DEVICE)
  46     ERR_CASE(ERROR_LOCK_FAILED)
  47     ERR_CASE(ERROR_FAIL_I24)
  48     ERR_CASE(ERROR_CURRENT_DIRECTORY)
  49     ERR_CASE(ERROR_DRIVE_LOCKED)
  50     ERR_CASE(ERROR_NOT_LOCKED)
  51     ERR_CASE(ERROR_INVALID_ACCESS)
  52     ERR_MAPS(ERROR_LOCK_VIOLATION,       MSVCRT_EACCES);
  53     ERR_CASE(ERROR_FILE_NOT_FOUND)
  54     ERR_CASE(ERROR_NO_MORE_FILES)
  55     ERR_CASE(ERROR_BAD_PATHNAME)
  56     ERR_CASE(ERROR_BAD_NETPATH)
  57     ERR_CASE(ERROR_INVALID_DRIVE)
  58     ERR_CASE(ERROR_BAD_NET_NAME)
  59     ERR_CASE(ERROR_FILENAME_EXCED_RANGE)
  60     ERR_MAPS(ERROR_PATH_NOT_FOUND,       MSVCRT_ENOENT);
  61     ERR_MAPS(ERROR_IO_DEVICE,            MSVCRT_EIO);
  62     ERR_MAPS(ERROR_BAD_FORMAT,           MSVCRT_ENOEXEC);
  63     ERR_MAPS(ERROR_INVALID_HANDLE,       MSVCRT_EBADF);
  64     ERR_CASE(ERROR_OUTOFMEMORY)
  65     ERR_CASE(ERROR_INVALID_BLOCK)
  66     ERR_CASE(ERROR_NOT_ENOUGH_QUOTA);
  67     ERR_MAPS(ERROR_ARENA_TRASHED,        MSVCRT_ENOMEM);
  68     ERR_MAPS(ERROR_BUSY,                 MSVCRT_EBUSY);
  69     ERR_CASE(ERROR_ALREADY_EXISTS)
  70     ERR_MAPS(ERROR_FILE_EXISTS,          MSVCRT_EEXIST);
  71     ERR_MAPS(ERROR_BAD_DEVICE,           MSVCRT_ENODEV);
  72     ERR_MAPS(ERROR_TOO_MANY_OPEN_FILES,  MSVCRT_EMFILE);
  73     ERR_MAPS(ERROR_DISK_FULL,            MSVCRT_ENOSPC);
  74     ERR_MAPS(ERROR_BROKEN_PIPE,          MSVCRT_EPIPE);
  75     ERR_MAPS(ERROR_POSSIBLE_DEADLOCK,    MSVCRT_EDEADLK);
  76     ERR_MAPS(ERROR_DIR_NOT_EMPTY,        MSVCRT_ENOTEMPTY);
  77     ERR_MAPS(ERROR_BAD_ENVIRONMENT,      MSVCRT_E2BIG);
  78     ERR_CASE(ERROR_WAIT_NO_CHILDREN)
  79     ERR_MAPS(ERROR_CHILD_NOT_COMPLETE,   MSVCRT_ECHILD);
  80     ERR_CASE(ERROR_NO_PROC_SLOTS)
  81     ERR_CASE(ERROR_MAX_THRDS_REACHED)
  82     ERR_MAPS(ERROR_NESTING_NOT_ALLOWED,  MSVCRT_EAGAIN);
  83   default:
  84     /*  Remaining cases map to EINVAL */
  85     /* FIXME: may be missing some errors above */
  86     *errno = MSVCRT_EINVAL;
  87   }
  88 }
  89
  90 /*********************************************************************
  91  *              _errno (MSVCRT.@)
  92  */
  93 int* MSVCRT__errno(void)
  94 {
  95     return &msvcrt_get_thread_data()->thread_errno;
  96 }
  97
  98 /*********************************************************************
  99  *              __doserrno (MSVCRT.@)
 100  */
 101 unsigned long* MSVCRT___doserrno(void)
 102 {
 103     return &msvcrt_get_thread_data()->thread_doserrno;
 104 }
 105
 106 /*********************************************************************
 107  *              strerror (MSVCRT.@)
 108  */
 109 char* MSVCRT_strerror(int err)
 110 {
 111   return strerror(err); /* FIXME */
 112 }
 113
 114 /**********************************************************************
 115  *              _strerror       (MSVCRT.@)
 116  */
 117 char* _strerror(const char* err)
 118 {
 119   static char strerrbuff[256]; /* FIXME: Per thread, nprintf */
 120   sprintf(strerrbuff,"%s: %s\n",err,MSVCRT_strerror(msvcrt_get_thread_data()->thread_errno));
 121   return strerrbuff;
 122 }
 123
 124 /*********************************************************************
 125  *              perror (MSVCRT.@)
 126  */
 127 void MSVCRT_perror(const char* str)
 128 {
 129   _cprintf("%s: %s\n",str,MSVCRT_strerror(msvcrt_get_thread_data()->thread_errno));
 130 }
 131
 132 /******************************************************************************
 133  *              _set_error_mode (MSVCRT.@)
 134  *
 135  * Set the error mode, which describes where the C run-time writes error
 136  * messages.
 137  *
 138  * PARAMS
 139  *   mode - the new error mode
 140  *
 141  * RETURNS
 142  *   The old error mode.
 143  *
 144  * TODO
 145  *  This function does not have a proper implementation; the error mode is
 146  *  never used.
 147  */
 148 int _set_error_mode(int mode)
 149 {
 150   static int current_mode = MSVCRT__OUT_TO_DEFAULT;
 151
 152   const int old = current_mode;
 153   if ( MSVCRT__REPORT_ERRMODE != mode ) {
 154     current_mode = mode;
 155     FIXME("dummy implementation (old mode: %d, new mode: %d)\n",
 156           old, mode);
 157   }
 158   return old;
 159 }
 160
 161 /******************************************************************************
 162  *              _seterrormode (MSVCRT.@)
 163  */
 164 void _seterrormode(int mode)
 165 {
 166     SetErrorMode( mode );
 167 }