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  64. <h4 class="unnumberedsubsubsec">Errno Values</h4>
  65. <a name="index-errno-values_002c-in-file_002di_002fo-protocol"></a>
  66. <p>All values are given in decimal representation.
  67. </p>
  68. <div class="smallexample">
  69. <pre class="smallexample"> EPERM 1
  70. ENOENT 2
  71. EINTR 4
  72. EBADF 9
  73. EACCES 13
  74. EFAULT 14
  75. EBUSY 16
  76. EEXIST 17
  77. ENODEV 19
  78. ENOTDIR 20
  79. EISDIR 21
  80. EINVAL 22
  81. ENFILE 23
  82. EMFILE 24
  83. EFBIG 27
  84. ENOSPC 28
  85. ESPIPE 29
  86. EROFS 30
  87. ENAMETOOLONG 91
  88. EUNKNOWN 9999
  89. </pre></div>
  90. <p><code>EUNKNOWN</code> is used as a fallback error value if a host system returns
  91. any error value not in the list of supported error numbers.
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