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  57. <a name="struct-stat"></a>
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  59. <p>
  60. Next: <a href="struct-timeval.html#struct-timeval" accesskey="n" rel="next">struct timeval</a>, Previous: <a href="Memory-Transfer.html#Memory-Transfer" accesskey="p" rel="prev">Memory Transfer</a>, Up: <a href="Protocol_002dspecific-Representation-of-Datatypes.html#Protocol_002dspecific-Representation-of-Datatypes" accesskey="u" rel="up">Protocol-specific Representation of Datatypes</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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  63. <a name="struct-stat-1"></a>
  64. <h4 class="unnumberedsubsubsec">struct stat</h4>
  65. <a name="index-struct-stat_002c-in-file_002di_002fo-protocol"></a>
  66. <p>The buffer of type <code>struct stat</code> used by the target and <small>GDB</small>
  67. is defined as follows:
  68. </p>
  69. <div class="smallexample">
  70. <pre class="smallexample">struct stat {
  71. unsigned int st_dev; /* device */
  72. unsigned int st_ino; /* inode */
  73. mode_t st_mode; /* protection */
  74. unsigned int st_nlink; /* number of hard links */
  75. unsigned int st_uid; /* user ID of owner */
  76. unsigned int st_gid; /* group ID of owner */
  77. unsigned int st_rdev; /* device type (if inode device) */
  78. unsigned long st_size; /* total size, in bytes */
  79. unsigned long st_blksize; /* blocksize for filesystem I/O */
  80. unsigned long st_blocks; /* number of blocks allocated */
  81. time_t st_atime; /* time of last access */
  82. time_t st_mtime; /* time of last modification */
  83. time_t st_ctime; /* time of last change */
  84. };
  85. </pre></div>
  86. <p>The integral datatypes conform to the definitions given in the
  87. appropriate section (see <a href="Integral-Datatypes.html#Integral-Datatypes">Integral Datatypes</a>, for details) so this
  88. structure is of size 64 bytes.
  89. </p>
  90. <p>The values of several fields have a restricted meaning and/or
  91. range of values.
  92. </p>
  93. <dl compact="compact">
  94. <dt><code>st_dev</code></dt>
  95. <dd><p>A value of 0 represents a file, 1 the console.
  96. </p>
  97. </dd>
  98. <dt><code>st_ino</code></dt>
  99. <dd><p>No valid meaning for the target. Transmitted unchanged.
  100. </p>
  101. </dd>
  102. <dt><code>st_mode</code></dt>
  103. <dd><p>Valid mode bits are described in <a href="Constants.html#Constants">Constants</a>. Any other
  104. bits have currently no meaning for the target.
  105. </p>
  106. </dd>
  107. <dt><code>st_uid</code></dt>
  108. <dt><code>st_gid</code></dt>
  109. <dt><code>st_rdev</code></dt>
  110. <dd><p>No valid meaning for the target. Transmitted unchanged.
  111. </p>
  112. </dd>
  113. <dt><code>st_atime</code></dt>
  114. <dt><code>st_mtime</code></dt>
  115. <dt><code>st_ctime</code></dt>
  116. <dd><p>These values have a host and file system dependent
  117. accuracy. Especially on Windows hosts, the file system may not
  118. support exact timing values.
  119. </p></dd>
  120. </dl>
  121. <p>The target gets a <code>struct stat</code> of the above representation and is
  122. responsible for coercing it to the target representation before
  123. continuing.
  124. </p>
  125. <p>Note that due to size differences between the host, target, and protocol
  126. representations of <code>struct stat</code> members, these members could eventually
  127. get truncated on the target.
  128. </p>
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