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<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"> FUSE: Filesystem in Userspace</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu></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"> Architecture specific file system mounting (Linux).</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"> This program can be distributed under the terms of the GNU LGPLv2.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> See the file COPYING.LIB.</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>  </div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "config.h"</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "fuse_i.h"</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "fuse_misc.h"</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "fuse_opt.h"</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "mount_util.h"</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  </div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <stdio.h></span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <stdlib.h></span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <unistd.h></span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <stddef.h></span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <string.h></span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <fcntl.h></span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <errno.h></span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <poll.h></span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <sys/socket.h></span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <sys/un.h></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <sys/wait.h></span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <sys/mount.h></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#ifdef __NetBSD__</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <perfuse.h></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  </div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#define MS_RDONLY MNT_RDONLY</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#define MS_NOSUID MNT_NOSUID</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#define MS_NODEV MNT_NODEV</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#define MS_NOEXEC MNT_NOEXEC</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#define MS_SYNCHRONOUS MNT_SYNCHRONOUS</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#define MS_NOATIME MNT_NOATIME</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#define umount2(mnt, flags) unmount(mnt, (flags == 2) ? MNT_FORCE : 0)</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#define FUSERMOUNT_PROG "fusermount3"</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#define FUSE_COMMFD_ENV "_FUSE_COMMFD"</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="preprocessor">#ifndef HAVE_FORK</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#define fork() vfork()</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  </div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#ifndef MS_DIRSYNC</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#define MS_DIRSYNC 128</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  KEY_KERN_FLAG,</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  KEY_KERN_OPT,</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  KEY_FUSERMOUNT_OPT,</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  KEY_SUBTYPE_OPT,</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  KEY_MTAB_OPT,</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  KEY_ALLOW_OTHER,</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  KEY_RO,</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> };</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">struct </span>mount_opts {</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordtype">int</span> allow_other;</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordtype">int</span> flags;</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">int</span> auto_unmount;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">int</span> blkdev;</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">char</span> *fsname;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">char</span> *subtype;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">char</span> *subtype_opt;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordtype">char</span> *mtab_opts;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">char</span> *fusermount_opts;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">char</span> *kernel_opts;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">unsigned</span> max_read;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> };</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  </div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor">#define FUSE_MOUNT_OPT(t, p) { t, offsetof(struct mount_opts, p), 1 }</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"> 80</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structfuse__opt.html">fuse_opt</a> fuse_mount_opts[] = {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  FUSE_MOUNT_OPT(<span class="stringliteral">"allow_other"</span>, allow_other),</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  FUSE_MOUNT_OPT(<span class="stringliteral">"blkdev"</span>, blkdev),</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  FUSE_MOUNT_OPT(<span class="stringliteral">"auto_unmount"</span>, auto_unmount),</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  FUSE_MOUNT_OPT(<span class="stringliteral">"fsname=%s"</span>, fsname),</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  FUSE_MOUNT_OPT(<span class="stringliteral">"max_read=%u"</span>, max_read),</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  FUSE_MOUNT_OPT(<span class="stringliteral">"subtype=%s"</span>, subtype),</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"allow_other"</span>, KEY_KERN_OPT),</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"auto_unmount"</span>, KEY_FUSERMOUNT_OPT),</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"blkdev"</span>, KEY_FUSERMOUNT_OPT),</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"fsname="</span>, KEY_FUSERMOUNT_OPT),</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"subtype="</span>, KEY_SUBTYPE_OPT),</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"blksize="</span>, KEY_KERN_OPT),</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"default_permissions"</span>, KEY_KERN_OPT),</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"context="</span>, KEY_KERN_OPT),</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"fscontext="</span>, KEY_KERN_OPT),</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"defcontext="</span>, KEY_KERN_OPT),</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"rootcontext="</span>, KEY_KERN_OPT),</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"max_read="</span>, KEY_KERN_OPT),</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"user="</span>, KEY_MTAB_OPT),</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"-r"</span>, KEY_RO),</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"ro"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"rw"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"suid"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"nosuid"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"dev"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"nodev"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"exec"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"noexec"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"async"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"sync"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"dirsync"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"atime"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a371d830a8aedd9e3f96d9bb31876a8f1">FUSE_OPT_KEY</a>(<span class="stringliteral">"noatime"</span>, KEY_KERN_FLAG),</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aca35962e17d189ceb5447f8eea11bd33">FUSE_OPT_END</a></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> };</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="keyword">static</span> <span class="keywordtype">void</span> exec_fusermount(<span class="keyword">const</span> <span class="keywordtype">char</span> *argv[])</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> {</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  execv(FUSERMOUNT_DIR <span class="stringliteral">"/"</span> FUSERMOUNT_PROG, (<span class="keywordtype">char</span> **) argv);</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  execvp(FUSERMOUNT_PROG, (<span class="keywordtype">char</span> **) argv);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> }</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="keywordtype">void</span> fuse_mount_version(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> {</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordtype">int</span> pid = fork();</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">if</span> (!pid) {</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *argv[] = { FUSERMOUNT_PROG, <span class="stringliteral">"--version"</span>, NULL };</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  exec_fusermount(argv);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  _exit(1);</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pid != -1)</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  waitpid(pid, NULL, 0);</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> }</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  </div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="keyword">struct </span>mount_flags {</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *opt;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> flag;</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordtype">int</span> on;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> };</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  </div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">struct </span>mount_flags mount_flags[] = {</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  {<span class="stringliteral">"rw"</span>, MS_RDONLY, 0},</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  {<span class="stringliteral">"ro"</span>, MS_RDONLY, 1},</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  {<span class="stringliteral">"suid"</span>, MS_NOSUID, 0},</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  {<span class="stringliteral">"nosuid"</span>, MS_NOSUID, 1},</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  {<span class="stringliteral">"dev"</span>, MS_NODEV, 0},</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  {<span class="stringliteral">"nodev"</span>, MS_NODEV, 1},</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  {<span class="stringliteral">"exec"</span>, MS_NOEXEC, 0},</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  {<span class="stringliteral">"noexec"</span>, MS_NOEXEC, 1},</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  {<span class="stringliteral">"async"</span>, MS_SYNCHRONOUS, 0},</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  {<span class="stringliteral">"sync"</span>, MS_SYNCHRONOUS, 1},</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  {<span class="stringliteral">"atime"</span>, MS_NOATIME, 0},</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  {<span class="stringliteral">"noatime"</span>, MS_NOATIME, 1},</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="preprocessor">#ifndef __NetBSD__</span></div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  {<span class="stringliteral">"dirsync"</span>, MS_DIRSYNC, 1},</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  {NULL, 0, 0}</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> };</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  </div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="keywordtype">unsigned</span> get_max_read(<span class="keyword">struct</span> mount_opts *o)</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> {</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">return</span> o->max_read;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> }</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  </div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="keyword">static</span> <span class="keywordtype">void</span> set_mount_flag(<span class="keyword">const</span> <span class="keywordtype">char</span> *s, <span class="keywordtype">int</span> *flags)</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> {</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  </div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">for</span> (i = 0; mount_flags[i].opt != NULL; i++) {</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *opt = mount_flags[i].opt;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">if</span> (strcmp(opt, s) == 0) {</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">if</span> (mount_flags[i].on)</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  *flags |= mount_flags[i].flag;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  *flags &= ~mount_flags[i].flag;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a>(FUSE_LOG_ERR, <span class="stringliteral">"fuse: internal error, can't find mount flag\n"</span>);</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  abort();</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> }</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  </div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="keyword">static</span> <span class="keywordtype">int</span> fuse_mount_opt_proc(<span class="keywordtype">void</span> *data, <span class="keyword">const</span> <span class="keywordtype">char</span> *arg, <span class="keywordtype">int</span> key,</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">struct</span> <a class="code" href="structfuse__args.html">fuse_args</a> *outargs)</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> {</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  (void) outargs;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">struct </span>mount_opts *mo = data;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  </div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">switch</span> (key) {</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">case</span> KEY_RO:</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  arg = <span class="stringliteral">"ro"</span>;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="comment">/* fall through */</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">case</span> KEY_KERN_FLAG:</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  set_mount_flag(arg, &mo->flags);</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">case</span> KEY_KERN_OPT:</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">return</span> <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aaae525d5e959c5394bc323be0c1d02b0">fuse_opt_add_opt</a>(&mo->kernel_opts, arg);</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  </div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">case</span> KEY_FUSERMOUNT_OPT:</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">return</span> <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a51a00d087d08bef250a53b9e4979b1cd">fuse_opt_add_opt_escaped</a>(&mo->fusermount_opts, arg);</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  </div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">case</span> KEY_SUBTYPE_OPT:</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">return</span> <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aaae525d5e959c5394bc323be0c1d02b0">fuse_opt_add_opt</a>(&mo->subtype_opt, arg);</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  </div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">case</span> KEY_MTAB_OPT:</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">return</span> <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aaae525d5e959c5394bc323be0c1d02b0">fuse_opt_add_opt</a>(&mo->mtab_opts, arg);</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  }</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  </div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">/* Pass through unknown options */</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> }</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  </div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment">/* return value:</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment"> * >= 0 => fd</span></div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment"> * -1 => error</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="keyword">static</span> <span class="keywordtype">int</span> receive_fd(<span class="keywordtype">int</span> fd)</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> {</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keyword">struct </span>msghdr msg;</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keyword">struct </span>iovec iov;</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordtype">char</span> buf[1];</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordtype">int</span> rv;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordtype">size_t</span> ccmsg[CMSG_SPACE(<span class="keyword">sizeof</span>(<span class="keywordtype">int</span>)) / <span class="keyword">sizeof</span>(size_t)];</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keyword">struct </span>cmsghdr *cmsg;</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  </div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  iov.iov_base = buf;</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  iov.iov_len = 1;</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  </div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  memset(&msg, 0, <span class="keyword">sizeof</span>(msg));</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  msg.msg_name = 0;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  msg.msg_namelen = 0;</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  msg.msg_iov = &iov;</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  msg.msg_iovlen = 1;</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">/* old BSD implementations should use msg_accrights instead of</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment"> * msg_control; the interface is different. */</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  msg.msg_control = ccmsg;</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  msg.msg_controllen = <span class="keyword">sizeof</span>(ccmsg);</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  </div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">while</span>(((rv = recvmsg(fd, &msg, 0)) == -1) && errno == EINTR);</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">if</span> (rv == -1) {</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  perror(<span class="stringliteral">"recvmsg"</span>);</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  }</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span>(!rv) {</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="comment">/* EOF */</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  </div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  cmsg = CMSG_FIRSTHDR(&msg);</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">if</span> (cmsg->cmsg_type != SCM_RIGHTS) {</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a>(FUSE_LOG_ERR, <span class="stringliteral">"got control message of unknown type %d\n"</span>,</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  cmsg->cmsg_type);</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  }</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">return</span> *(<span class="keywordtype">int</span>*)CMSG_DATA(cmsg);</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> }</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  </div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="keywordtype">void</span> fuse_kern_unmount(<span class="keyword">const</span> <span class="keywordtype">char</span> *mountpoint, <span class="keywordtype">int</span> fd)</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> {</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordtype">int</span> pid;</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  </div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordflow">if</span> (fd != -1) {</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keyword">struct </span>pollfd pfd;</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  </div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  pfd.fd = fd;</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  pfd.events = 0;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  res = poll(&pfd, 1, 0);</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  </div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="comment">/* Need to close file descriptor, otherwise synchronous umount</span></div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="comment"> would recurse into filesystem, and deadlock.</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="comment"></span> </div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment"> Caller expects fuse_kern_unmount to close the fd, so close it</span></div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment"> anyway. */</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  close(fd);</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  </div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="comment">/* If file poll returns POLLERR on the device file descriptor,</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment"> then the filesystem is already unmounted or the connection</span></div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment"> was severed via /sys/fs/fuse/connections/NNN/abort */</span></div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">if</span> (res == 1 && (pfd.revents & POLLERR))</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  }</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  </div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">if</span> (geteuid() == 0) {</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  fuse_mnt_umount(<span class="stringliteral">"fuse"</span>, mountpoint, mountpoint, 1);</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  }</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  </div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  res = umount2(mountpoint, 2);</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">if</span> (res == 0)</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  </div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  pid = fork();</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">if</span>(pid == -1)</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  </div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">if</span>(pid == 0) {</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *argv[] = { FUSERMOUNT_PROG, <span class="stringliteral">"-u"</span>, <span class="stringliteral">"-q"</span>, <span class="stringliteral">"-z"</span>,</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="stringliteral">"--"</span>, mountpoint, NULL };</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  </div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  exec_fusermount(argv);</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  _exit(1);</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  }</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  waitpid(pid, NULL, 0);</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> }</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  </div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="keyword">static</span> <span class="keywordtype">int</span> fuse_mount_fusermount(<span class="keyword">const</span> <span class="keywordtype">char</span> *mountpoint, <span class="keyword">struct</span> mount_opts *mo,</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *opts, <span class="keywordtype">int</span> quiet)</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> {</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordtype">int</span> fds[2], pid;</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordtype">int</span> rv;</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  </div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">if</span> (!mountpoint) {</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a>(FUSE_LOG_ERR, <span class="stringliteral">"fuse: missing mountpoint parameter\n"</span>);</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  }</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  </div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  res = socketpair(PF_UNIX, SOCK_STREAM, 0, fds);</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">if</span>(res == -1) {</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  perror(<span class="stringliteral">"fuse: socketpair() failed"</span>);</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  }</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  </div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  pid = fork();</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordflow">if</span>(pid == -1) {</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  perror(<span class="stringliteral">"fuse: fork() failed"</span>);</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  close(fds[0]);</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  close(fds[1]);</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  }</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  </div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">if</span>(pid == 0) {</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordtype">char</span> env[10];</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *argv[32];</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordtype">int</span> a = 0;</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  </div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keywordflow">if</span> (quiet) {</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keywordtype">int</span> fd = open(<span class="stringliteral">"/dev/null"</span>, O_RDONLY);</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordflow">if</span> (fd != -1) {</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  dup2(fd, 1);</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  dup2(fd, 2);</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  }</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  }</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  </div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  argv[a++] = FUSERMOUNT_PROG;</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">if</span> (opts) {</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  argv[a++] = <span class="stringliteral">"-o"</span>;</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  argv[a++] = opts;</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  }</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  argv[a++] = <span class="stringliteral">"--"</span>;</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  argv[a++] = mountpoint;</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  argv[a++] = NULL;</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  </div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  close(fds[1]);</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  fcntl(fds[0], F_SETFD, 0);</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  snprintf(env, <span class="keyword">sizeof</span>(env), <span class="stringliteral">"%i"</span>, fds[0]);</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  setenv(FUSE_COMMFD_ENV, env, 1);</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  exec_fusermount(argv);</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  perror(<span class="stringliteral">"fuse: failed to exec fusermount3"</span>);</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  _exit(1);</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  }</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  </div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  close(fds[0]);</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  rv = receive_fd(fds[1]);</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  </div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keywordflow">if</span> (!mo->auto_unmount) {</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="comment">/* with auto_unmount option fusermount3 will not exit until</span></div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="comment"> this socket is closed */</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  close(fds[1]);</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  waitpid(pid, NULL, 0); <span class="comment">/* bury zombie */</span></div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  }</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  </div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keywordflow">if</span> (rv >= 0)</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  fcntl(rv, F_SETFD, FD_CLOEXEC);</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  </div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordflow">return</span> rv;</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> }</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  </div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="preprocessor">#ifndef O_CLOEXEC</span></div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="preprocessor">#define O_CLOEXEC 0</span></div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  </div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="keyword">static</span> <span class="keywordtype">int</span> fuse_mount_sys(<span class="keyword">const</span> <span class="keywordtype">char</span> *mnt, <span class="keyword">struct</span> mount_opts *mo,</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *mnt_opts)</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span> {</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keywordtype">char</span> tmp[128];</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *devname = <span class="stringliteral">"/dev/fuse"</span>;</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordtype">char</span> *source = NULL;</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordtype">char</span> *type = NULL;</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keyword">struct </span>stat stbuf;</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordtype">int</span> fd;</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  </div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordflow">if</span> (!mnt) {</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a>(FUSE_LOG_ERR, <span class="stringliteral">"fuse: missing mountpoint parameter\n"</span>);</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  }</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  </div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  res = stat(mnt, &stbuf);</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">if</span> (res == -1) {</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a>(FUSE_LOG_ERR, <span class="stringliteral">"fuse: failed to access mountpoint %s: %s\n"</span>,</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  mnt, strerror(errno));</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  }</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  </div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">if</span> (mo->auto_unmount) {</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="comment">/* Tell the caller to fallback to fusermount3 because</span></div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="comment"> auto-unmount does not work otherwise. */</span></div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keywordflow">return</span> -2;</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  }</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  </div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  fd = open(devname, O_RDWR | O_CLOEXEC);</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordflow">if</span> (fd == -1) {</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="keywordflow">if</span> (errno == ENODEV || errno == ENOENT)</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a>(FUSE_LOG_ERR, <span class="stringliteral">"fuse: device not found, try 'modprobe fuse' first\n"</span>);</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a>(FUSE_LOG_ERR, <span class="stringliteral">"fuse: failed to open %s: %s\n"</span>,</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  devname, strerror(errno));</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  }</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keywordflow">if</span> (!O_CLOEXEC)</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  fcntl(fd, F_SETFD, FD_CLOEXEC);</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  </div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  snprintf(tmp, <span class="keyword">sizeof</span>(tmp), <span class="stringliteral">"fd=%i,rootmode=%o,user_id=%u,group_id=%u"</span>,</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  fd, stbuf.st_mode & S_IFMT, getuid(), getgid());</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  </div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  res = <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aaae525d5e959c5394bc323be0c1d02b0">fuse_opt_add_opt</a>(&mo->kernel_opts, tmp);</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordflow">if</span> (res == -1)</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="keywordflow">goto</span> out_close;</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  </div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  source = malloc((mo->fsname ? strlen(mo->fsname) : 0) +</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  (mo->subtype ? strlen(mo->subtype) : 0) +</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  strlen(devname) + 32);</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  </div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  type = malloc((mo->subtype ? strlen(mo->subtype) : 0) + 32);</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keywordflow">if</span> (!type || !source) {</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a>(FUSE_LOG_ERR, <span class="stringliteral">"fuse: failed to allocate memory\n"</span>);</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">goto</span> out_close;</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  }</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  </div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  strcpy(type, mo->blkdev ? <span class="stringliteral">"fuseblk"</span> : <span class="stringliteral">"fuse"</span>);</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">if</span> (mo->subtype) {</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  strcat(type, <span class="stringliteral">"."</span>);</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  strcat(type, mo->subtype);</div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  }</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  strcpy(source,</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  mo->fsname ? mo->fsname : (mo->subtype ? mo->subtype : devname));</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  </div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  res = mount(source, mnt, type, mo->flags, mo->kernel_opts);</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="keywordflow">if</span> (res == -1 && errno == ENODEV && mo->subtype) {</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="comment">/* Probably missing subtype support */</span></div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  strcpy(type, mo->blkdev ? <span class="stringliteral">"fuseblk"</span> : <span class="stringliteral">"fuse"</span>);</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="keywordflow">if</span> (mo->fsname) {</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="keywordflow">if</span> (!mo->blkdev)</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  sprintf(source, <span class="stringliteral">"%s#%s"</span>, mo->subtype,</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  mo->fsname);</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  strcpy(source, type);</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  }</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  res = mount(source, mnt, type, mo->flags, mo->kernel_opts);</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  }</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordflow">if</span> (res == -1) {</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="comment"> * Maybe kernel doesn't support unprivileged mounts, in this</span></div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="comment"> * case try falling back to fusermount3</span></div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keywordflow">if</span> (errno == EPERM) {</div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  res = -2;</div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="keywordtype">int</span> errno_save = errno;</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordflow">if</span> (mo->blkdev && errno == ENODEV &&</div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  !fuse_mnt_check_fuseblk())</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a>(FUSE_LOG_ERR,</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="stringliteral">"fuse: 'fuseblk' support missing\n"</span>);</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a>(FUSE_LOG_ERR, <span class="stringliteral">"fuse: mount failed: %s\n"</span>,</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  strerror(errno_save));</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  }</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  </div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keywordflow">goto</span> out_close;</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  }</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  </div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> <span class="preprocessor">#ifndef IGNORE_MTAB</span></div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="keywordflow">if</span> (geteuid() == 0) {</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="keywordtype">char</span> *newmnt = fuse_mnt_resolve_path(<span class="stringliteral">"fuse"</span>, mnt);</div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  res = -1;</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <span class="keywordflow">if</span> (!newmnt)</div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="keywordflow">goto</span> out_umount;</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  </div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  res = fuse_mnt_add_mount(<span class="stringliteral">"fuse"</span>, source, newmnt, type,</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  mnt_opts);</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  free(newmnt);</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="keywordflow">if</span> (res == -1)</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keywordflow">goto</span> out_umount;</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  }</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> <span class="preprocessor">#endif </span><span class="comment">/* IGNORE_MTAB */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  free(type);</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  free(source);</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  </div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keywordflow">return</span> fd;</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  </div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span> out_umount:</div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  umount2(mnt, 2); <span class="comment">/* lazy umount */</span></div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span> out_close:</div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  free(type);</div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  free(source);</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  close(fd);</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span> }</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  </div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span> <span class="keyword">static</span> <span class="keywordtype">int</span> get_mnt_flag_opts(<span class="keywordtype">char</span> **mnt_optsp, <span class="keywordtype">int</span> flags)</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> {</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  </div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <span class="keywordflow">if</span> (!(flags & MS_RDONLY) && <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aaae525d5e959c5394bc323be0c1d02b0">fuse_opt_add_opt</a>(mnt_optsp, <span class="stringliteral">"rw"</span>) == -1)</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  </div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keywordflow">for</span> (i = 0; mount_flags[i].opt != NULL; i++) {</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="keywordflow">if</span> (mount_flags[i].on && (flags & mount_flags[i].flag) &&</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aaae525d5e959c5394bc323be0c1d02b0">fuse_opt_add_opt</a>(mnt_optsp, mount_flags[i].opt) == -1)</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  }</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span> }</div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  </div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span> <span class="keyword">struct </span>mount_opts *parse_mount_opts(<span class="keyword">struct</span> <a class="code" href="structfuse__args.html">fuse_args</a> *args)</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span> {</div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keyword">struct </span>mount_opts *mo;</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  </div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  mo = (<span class="keyword">struct </span>mount_opts*) malloc(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> mount_opts));</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="keywordflow">if</span> (mo == NULL)</div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  </div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  memset(mo, 0, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> mount_opts));</div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  mo->flags = MS_NOSUID | MS_NODEV;</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  </div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="keywordflow">if</span> (args &&</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#a539ef1f571c34f516c60c4cbe2901c0e">fuse_opt_parse</a>(args, mo, fuse_mount_opts, fuse_mount_opt_proc) == -1)</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <span class="keywordflow">goto</span> err_out;</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  </div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keywordflow">return</span> mo;</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  </div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span> err_out:</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  destroy_mount_opts(mo);</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span> }</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  </div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span> <span class="keywordtype">void</span> destroy_mount_opts(<span class="keyword">struct</span> mount_opts *mo)</div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span> {</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  free(mo->fsname);</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  free(mo->subtype);</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  free(mo->fusermount_opts);</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  free(mo->subtype_opt);</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  free(mo->kernel_opts);</div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  free(mo->mtab_opts);</div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  free(mo);</div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span> }</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  </div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  </div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span> <span class="keywordtype">int</span> fuse_kern_mount(<span class="keyword">const</span> <span class="keywordtype">char</span> *mountpoint, <span class="keyword">struct</span> mount_opts *mo)</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span> {</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="keywordtype">int</span> res = -1;</div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keywordtype">char</span> *mnt_opts = NULL;</div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  </div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  res = -1;</div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <span class="keywordflow">if</span> (get_mnt_flag_opts(&mnt_opts, mo->flags) == -1)</div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keywordflow">goto</span> out;</div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="keywordflow">if</span> (mo->kernel_opts && <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aaae525d5e959c5394bc323be0c1d02b0">fuse_opt_add_opt</a>(&mnt_opts, mo->kernel_opts) == -1)</div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <span class="keywordflow">goto</span> out;</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keywordflow">if</span> (mo->mtab_opts && <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aaae525d5e959c5394bc323be0c1d02b0">fuse_opt_add_opt</a>(&mnt_opts, mo->mtab_opts) == -1)</div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="keywordflow">goto</span> out;</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  </div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  res = fuse_mount_sys(mountpoint, mo, mnt_opts);</div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="keywordflow">if</span> (res == -2) {</div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="keywordflow">if</span> (mo->fusermount_opts &&</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aaae525d5e959c5394bc323be0c1d02b0">fuse_opt_add_opt</a>(&mnt_opts, mo->fusermount_opts) == -1)</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keywordflow">goto</span> out;</div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  </div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <span class="keywordflow">if</span> (mo->subtype) {</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="keywordtype">char</span> *tmp_opts = NULL;</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  </div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  res = -1;</div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="keywordflow">if</span> (<a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aaae525d5e959c5394bc323be0c1d02b0">fuse_opt_add_opt</a>(&tmp_opts, mnt_opts) == -1 ||</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <a class="code" href="fuse-3_810_84_2include_2fuse__opt_8h.html#aaae525d5e959c5394bc323be0c1d02b0">fuse_opt_add_opt</a>(&tmp_opts, mo->subtype_opt) == -1) {</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  free(tmp_opts);</div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  <span class="keywordflow">goto</span> out;</div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  }</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  </div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  res = fuse_mount_fusermount(mountpoint, mo, tmp_opts, 1);</div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  free(tmp_opts);</div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  <span class="keywordflow">if</span> (res == -1)</div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  res = fuse_mount_fusermount(mountpoint, mo,</div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  mnt_opts, 0);</div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  res = fuse_mount_fusermount(mountpoint, mo, mnt_opts, 0);</div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  }</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  }</div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span> out:</div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  free(mnt_opts);</div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span> }</div>
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<div class="ttc" id="astructfuse__opt_html"><div class="ttname"><a href="structfuse__opt.html">fuse_opt</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_810_84_2include_2fuse__opt_8h_source.html#l00077">fuse_opt.h:77</a></div></div>
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