dlls/msvcrt/errno.c

   1 /*
   2  * msvcrt.dll errno functions
   3  *
   4  * Copyright 2000 Jon Griffiths
   5  */
   6
   7 #include "msvcrt.h"
   8 #include "ms_errno.h"
   9
  10 #include <stdio.h>
  11 #include <string.h>
  12
  13 #include "msvcrt/conio.h"
  14 #include "msvcrt/stdlib.h"
  15 #include "msvcrt/string.h"
  16
  17
  18 DEFAULT_DEBUG_CHANNEL(msvcrt);
  19
  20
  21 /* INTERNAL: Set the crt and dos errno's from the OS error given. */
  22 void MSVCRT__set_errno(int err)
  23 {
  24   int *errno = GET_THREAD_VAR_PTR(errno);
  25   unsigned long *doserrno = GET_THREAD_VAR_PTR(doserrno);
  26
  27   *doserrno = err;
  28
  29   switch(err)
  30   {
  31 #define ERR_CASE(oserr) case oserr:
  32 #define ERR_MAPS(oserr,crterr) case oserr:*errno = crterr;break;
  33     ERR_CASE(ERROR_ACCESS_DENIED)
  34     ERR_CASE(ERROR_NETWORK_ACCESS_DENIED)
  35     ERR_CASE(ERROR_CANNOT_MAKE)
  36     ERR_CASE(ERROR_SEEK_ON_DEVICE)
  37     ERR_CASE(ERROR_LOCK_FAILED)
  38     ERR_CASE(ERROR_FAIL_I24)
  39     ERR_CASE(ERROR_CURRENT_DIRECTORY)
  40     ERR_CASE(ERROR_DRIVE_LOCKED)
  41     ERR_CASE(ERROR_NOT_LOCKED)
  42     ERR_CASE(ERROR_INVALID_ACCESS)
  43     ERR_MAPS(ERROR_LOCK_VIOLATION,       MSVCRT_EACCES);
  44     ERR_CASE(ERROR_FILE_NOT_FOUND)
  45     ERR_CASE(ERROR_NO_MORE_FILES)
  46     ERR_CASE(ERROR_BAD_PATHNAME)
  47     ERR_CASE(ERROR_BAD_NETPATH)
  48     ERR_CASE(ERROR_INVALID_DRIVE)
  49     ERR_CASE(ERROR_BAD_NET_NAME)
  50     ERR_CASE(ERROR_FILENAME_EXCED_RANGE)
  51     ERR_MAPS(ERROR_PATH_NOT_FOUND,       MSVCRT_ENOENT);
  52     ERR_MAPS(ERROR_IO_DEVICE,            MSVCRT_EIO);
  53     ERR_MAPS(ERROR_BAD_FORMAT,           MSVCRT_ENOEXEC);
  54     ERR_MAPS(ERROR_INVALID_HANDLE,       MSVCRT_EBADF);
  55     ERR_CASE(ERROR_OUTOFMEMORY)
  56     ERR_CASE(ERROR_INVALID_BLOCK)
  57     ERR_CASE(ERROR_NOT_ENOUGH_QUOTA);
  58     ERR_MAPS(ERROR_ARENA_TRASHED,        MSVCRT_ENOMEM);
  59     ERR_MAPS(ERROR_BUSY,                 MSVCRT_EBUSY);
  60     ERR_CASE(ERROR_ALREADY_EXISTS)
  61     ERR_MAPS(ERROR_FILE_EXISTS,          MSVCRT_EEXIST);
  62     ERR_MAPS(ERROR_BAD_DEVICE,           MSVCRT_ENODEV);
  63     ERR_MAPS(ERROR_TOO_MANY_OPEN_FILES,  MSVCRT_EMFILE);
  64     ERR_MAPS(ERROR_DISK_FULL,            MSVCRT_ENOSPC);
  65     ERR_MAPS(ERROR_BROKEN_PIPE,          MSVCRT_EPIPE);
  66     ERR_MAPS(ERROR_POSSIBLE_DEADLOCK,    MSVCRT_EDEADLK);
  67     ERR_MAPS(ERROR_DIR_NOT_EMPTY,        MSVCRT_ENOTEMPTY);
  68     ERR_MAPS(ERROR_BAD_ENVIRONMENT,      MSVCRT_E2BIG);
  69     ERR_CASE(ERROR_WAIT_NO_CHILDREN)
  70     ERR_MAPS(ERROR_CHILD_NOT_COMPLETE,   MSVCRT_ECHILD);
  71     ERR_CASE(ERROR_NO_PROC_SLOTS)
  72     ERR_CASE(ERROR_MAX_THRDS_REACHED)
  73     ERR_MAPS(ERROR_NESTING_NOT_ALLOWED,  MSVCRT_EAGAIN);
  74   default:
  75     /*  Remaining cases map to EINVAL */
  76     /* FIXME: may be missing some errors above */
  77     *errno = MSVCRT_EINVAL;
  78   }
  79 }
  80
  81 /*********************************************************************
  82  *              _errno (MSVCRT.@)
  83  */
  84 int* MSVCRT__errno(void)
  85 {
  86   return GET_THREAD_VAR_PTR(errno);
  87 }
  88
  89 /*********************************************************************
  90  *              __doserrno (MSVCRT.@)
  91  */
  92 unsigned long* __doserrno(void)
  93 {
  94   return GET_THREAD_VAR_PTR(doserrno);
  95 }
  96
  97 /*********************************************************************
  98  *              strerror (MSVCRT.@)
  99  */
 100 char* MSVCRT_strerror(int err)
 101 {
 102   return strerror(err); /* FIXME */
 103 }
 104
 105 /**********************************************************************
 106  *              _strerror       (MSVCRT.@)
 107  */
 108 char* _strerror(const char* err)
 109 {
 110   static char strerrbuff[256]; /* FIXME: Per thread, nprintf */
 111   sprintf(strerrbuff,"%s: %s\n",err,MSVCRT_strerror(GET_THREAD_VAR(errno)));
 112   return strerrbuff;
 113 }
 114
 115 /*********************************************************************
 116  *              perror (MSVCRT.@)
 117  */
 118 void MSVCRT_perror(const char* str)
 119 {
 120   _cprintf("%s: %s\n",str,MSVCRT_strerror(GET_THREAD_VAR(errno)));
 121 }