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<a href="../../d7/d9f/fcntl_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*-</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2002-2018 The UbixOS Project.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * This was developed by Christopher W. Olsen for the UbixOS Project.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification, are permitted</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * provided that the following conditions are met:</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * 1) Redistributions of source code must retain the above copyright notice, this list of</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * conditions, the following disclaimer and the list of authors.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * 2) Redistributions in binary form must reproduce the above copyright notice, this list of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * conditions, the following disclaimer and the list of authors in the documentation and/or</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * other materials provided with the distribution.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * endorse or promote products derived from this software without specific prior written</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * permission.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#ifndef _SYS_FCNTL_H_</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#define _SYS_FCNTL_H_</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  </div>
<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a301749b9aa4b9416c329bb8b19345216"> 32</a></span> <span class="preprocessor">#define AT_FDCWD -100</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">/* command values */</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#ab93a8621587aba90181efd7d3aeea67e"> 35</a></span> <span class="preprocessor">#define F_DUPFD 0 </span><span class="comment">/* duplicate file descriptor */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#abc11141031604fb22b8e3a201155cbb3"> 36</a></span> <span class="preprocessor">#define F_GETFD 1 </span><span class="comment">/* get file descriptor flags */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#ad27227e8d87b844648f07d66da38bb3f"> 37</a></span> <span class="preprocessor">#define F_SETFD 2 </span><span class="comment">/* set file descriptor flags */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a025fad21a889c79f02ec53abe3526c32"> 38</a></span> <span class="preprocessor">#define F_GETFL 3 </span><span class="comment">/* get file status flags */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#af2939853c650561d3495ed40f68f6249"> 39</a></span> <span class="preprocessor">#define F_SETFL 4 </span><span class="comment">/* set file status flags */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#aa76959dcf54457a81c4cdf7789ba73e4"> 40</a></span> <span class="preprocessor">#define F_GETOWN 5 </span><span class="comment">/* get SIGIO/SIGURG proc/pgrp */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a10e6ca002b56361c5adb1e66a8a4917d"> 41</a></span> <span class="preprocessor">#define F_SETOWN 6 </span><span class="comment">/* set SIGIO/SIGURG proc/pgrp */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a2c3005e07f9aedb5d77856d13c3e40c4"> 42</a></span> <span class="preprocessor">#define F_GETLK 7 </span><span class="comment">/* get record locking information */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a68a7fc570f2fc271acc5358a6418504e"> 43</a></span> <span class="preprocessor">#define F_SETLK 8 </span><span class="comment">/* set record locking information */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#aabb866cd0cf7ed3544dfc335e0e360fd"> 44</a></span> <span class="preprocessor">#define F_SETLKW 9 </span><span class="comment">/* F_SETLK; wait if blocked */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  </div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment">/* Flag Values */</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a3252b359359dea1efa45bb87c4499acd"> 47</a></span> <span class="preprocessor">#define FREAD 0x0001</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a171aed9ee8e3ec0a65cedfb9a2626499"> 48</a></span> <span class="preprocessor">#define FWRITE 0x0002</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a39d33ce33804efd4d52606d59071c6d8"> 49</a></span> <span class="preprocessor">#define O_NONBLOCK 0x0004 </span><span class="comment">/* no delay */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#ae036f789407d21f07b211552d67b3214"> 50</a></span> <span class="preprocessor">#define O_APPEND 0x0008 </span><span class="comment">/* set append mode */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a8234597f4e8a183770c5f5d94ba8562a"> 51</a></span> <span class="preprocessor">#define O_SHLOCK 0x0010 </span><span class="comment">/* open with shared file lock */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#ad041d863b473edbd26926d2fad250384"> 52</a></span> <span class="preprocessor">#define O_EXLOCK 0x0020 </span><span class="comment">/* open with exclusive file lock */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#ac5d0c9848f853f8b026b1211b93f78b1"> 53</a></span> <span class="preprocessor">#define O_ASYNC 0x0040 </span><span class="comment">/* signal pgrp when data ready */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#ac683f821c3bf7ce4752ff436733cd715"> 54</a></span> <span class="preprocessor">#define O_FSYNC 0x0080 </span><span class="comment">/* synchronous writes */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#aae85139bfa94236d126bb1e3b772998f"> 55</a></span> <span class="preprocessor">#define O_SYNC 0x0080 </span><span class="comment">/* POSIX synonym for O_FSYNC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a82d4d551b214905742c9e045185d352a"> 56</a></span> <span class="preprocessor">#define O_NOFOLLOW 0x0100 </span><span class="comment">/* don't follow symlinks */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a1cf6b1de1fffedaa1d26b189e9a8d2cc"> 57</a></span> <span class="preprocessor">#define O_CREAT 0x0200 </span><span class="comment">/* create if nonexistent */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#ad1d67e453fb3031f40f8cd3403773813"> 58</a></span> <span class="preprocessor">#define O_TRUNC 0x0400 </span><span class="comment">/* truncate to zero length */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a9f5acfe79fafe14b6694447bd0e9f10b"> 59</a></span> <span class="preprocessor">#define O_EXCL 0x0800 </span><span class="comment">/* error if already exists */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#ad28ccbf6f0a42c91c160ac5ada0c8429"> 60</a></span> <span class="preprocessor">#define O_DIRECT 0x00010000</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a7a68c9ffaac7dbcd652225dd7c06a54b"> 61</a></span> <span class="preprocessor">#define O_RDONLY 0x0000 </span><span class="comment">/* open for reading only */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a11b644a8526139c4cc1850dac1271ced"> 62</a></span> <span class="preprocessor">#define O_WRONLY 0x0001 </span><span class="comment">/* open for writing only */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#abb0586253488ee61072b73557eeb873b"> 63</a></span> <span class="preprocessor">#define O_RDWR 0x0002 </span><span class="comment">/* open for reading and writing */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a4dc4d45e07d2abc899bcaf04b2846a87"> 64</a></span> <span class="preprocessor">#define O_ACCMODE 0x0003 </span><span class="comment">/* mask for above modes */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div>
<div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a5e502663ed8d9bf975848f5464c3f516"> 66</a></span> <span class="preprocessor">#define FHASLOCK 0x4000 </span><span class="comment">/* descriptor holds advisory lock */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  </div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment">/* F MAPPERS */</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#aa336842f710119bfdab086f34efac63c"> 69</a></span> <span class="preprocessor">#define FAPPEND O_APPEND </span><span class="comment">/* kernel/compat */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a1c28a43c30721462ad7e40f37051c9ca"> 70</a></span> <span class="preprocessor">#define FASYNC O_ASYNC </span><span class="comment">/* kernel/compat */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#aee6e522943bfde38729955245588808c"> 71</a></span> <span class="preprocessor">#define FFSYNC O_FSYNC </span><span class="comment">/* kernel */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#aa7660d77d1097779b6b790cb4d89f56c"> 72</a></span> <span class="preprocessor">#define FNONBLOCK O_NONBLOCK </span><span class="comment">/* kernel */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a71a490d1088a9c5f120f3a59e2a4599f"> 73</a></span> <span class="preprocessor">#define FNDELAY O_NONBLOCK </span><span class="comment">/* compat */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a63ba256ec18f373817941d5a4d0e2d5e"> 74</a></span> <span class="preprocessor">#define O_NDELAY O_NONBLOCK </span><span class="comment">/* compat */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#aed6c61cad1ddb572aae570ca0a7cb6f8"> 75</a></span> <span class="preprocessor">#define FPOSIXSHM O_NOFOLLOW</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
<div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a6afd3dd2f570069804b40e6aa24fc966"> 77</a></span> <span class="preprocessor">#define O_DIRECTORY 0x00020000 </span><span class="comment">/* Fail if not directory */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a459542206659fbe295eb4183f8b8f06c"> 78</a></span> <span class="preprocessor">#define O_EXEC 0x00040000 </span><span class="comment">/* Open for execute only */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#ae145197023ee3530510eaa80446eef77"> 80</a></span> <span class="preprocessor">#define FCNTLFLAGS (FAPPEND|FASYNC|FFSYNC|FNONBLOCK|FPOSIXSHM|O_DIRECT)</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  </div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> #define FFLAGS(oflags) ((oflags) + 1)</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"> #define OFLAGS(fflags) ((fflags) - 1)</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment">/* convert from open() flags to/from fflags; convert O_RD/WR to FREAD/FWRITE */</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a3c28c97a69c6ce8f87cac54a7c91f9db"> 88</a></span> <span class="preprocessor">#define FFLAGS(oflags) ((oflags) & O_EXEC ? (oflags) : (oflags) + 1)</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#a9b5b463dd687798c592fd23584869cc8"> 89</a></span> <span class="preprocessor">#define OFLAGS(fflags) ((fflags) & O_EXEC ? (fflags) : (fflags) - 1)</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  </div>
<div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#ac6f4e8852707745da144bc4cef5a726f"> 91</a></span> <span class="preprocessor">#define FEXEC O_EXEC</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  </div>
<div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="../../d7/d9f/fcntl_8h.html#ab3f8268db3f2e8e22c6f52345799b3fb"> 93</a></span> <span class="preprocessor">#define FMASK (FREAD|FWRITE|FAPPEND|FASYNC|FFSYNC|FNONBLOCK|O_DIRECT|FEXEC)</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor">#endif </span><span class="comment">/* !_SYS_FCNTL_H_ */</span><span class="preprocessor"></span></div>
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