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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> FUSE: Filesystem in Userspace</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> Copyright (C) 2019 Red Hat, Inc.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"></span> </div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> Logging API.</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"></span> </div>
<div class="line"><a id="l00007" 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 id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> See the file COPYING.LIB</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment">*/</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include "<a class="code" href="fuse__log_8h.html">fuse_log.h</a>"</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> </div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include <stdarg.h></span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include <stdio.h></span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include <stdbool.h></span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <syslog.h></span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#define MAX_SYSLOG_LINE_LEN 512</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="keyword">static</span> <span class="keywordtype">bool</span> to_syslog = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="keyword">static</span> <span class="keywordtype">void</span> default_log_func(__attribute__((unused)) <span class="keyword">enum</span> <a class="code hl_enumeration" href="fuse__log_8h.html#ad2c3b50473593e65865abaad574bd039">fuse_log_level</a> level,</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *fmt, va_list ap)</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span>{</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keywordflow">if</span> (to_syslog) {</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> <span class="keywordtype">int</span> sys_log_level = LOG_ERR;</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="comment">/*</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="comment"> * with glibc fuse_log_level has identical values as</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="comment"> * syslog levels, but we also support BSD - better we convert to</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="comment"> * be sure.</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="comment"> */</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordflow">switch</span> (level) {</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keywordflow">case</span> FUSE_LOG_DEBUG:</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> sys_log_level = LOG_DEBUG;</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordflow">case</span> FUSE_LOG_INFO:</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> sys_log_level = LOG_INFO;</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <span class="keywordflow">case</span> FUSE_LOG_NOTICE:</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> sys_log_level = LOG_NOTICE;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordflow">case</span> FUSE_LOG_WARNING:</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> sys_log_level = LOG_WARNING;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keywordflow">case</span> FUSE_LOG_ERR:</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> sys_log_level = LOG_ERR;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keywordflow">case</span> FUSE_LOG_CRIT:</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> sys_log_level = LOG_CRIT;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">case</span> FUSE_LOG_ALERT:</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> sys_log_level = LOG_ALERT;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordflow">case</span> FUSE_LOG_EMERG:</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> sys_log_level = LOG_EMERG;</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> }</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordtype">char</span> log[MAX_SYSLOG_LINE_LEN];</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> vsnprintf(log, MAX_SYSLOG_LINE_LEN, fmt, ap);</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> syslog(sys_log_level, <span class="stringliteral">"%s"</span>, log);</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> vfprintf(stderr, fmt, ap);</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> }</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span>}</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="keyword">static</span> <a class="code hl_typedef" href="fuse__log_8h.html#a76d80f5bae796dddb1d6b6a121968666">fuse_log_func_t</a> log_func = default_log_func;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="foldopen" id="foldopen00069" data-start="{" data-end="}">
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"><a class="line" href="fuse__log_8h.html#af19307887778edec299c02c1e858addd"> 69</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="fuse__log_8h.html#af19307887778edec299c02c1e858addd">fuse_set_log_func</a>(<a class="code hl_typedef" href="fuse__log_8h.html#a76d80f5bae796dddb1d6b6a121968666">fuse_log_func_t</a> func)</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span>{</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">if</span> (!func)</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> func = default_log_func;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> </div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> log_func = func;</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span>}</div>
</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="foldopen" id="foldopen00077" data-start="{" data-end="}">
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"><a class="line" href="fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621"> 77</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a>(<span class="keyword">enum</span> <a class="code hl_enumeration" href="fuse__log_8h.html#ad2c3b50473593e65865abaad574bd039">fuse_log_level</a> level, <span class="keyword">const</span> <span class="keywordtype">char</span> *fmt, ...)</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span>{</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> va_list ap;</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> va_start(ap, fmt);</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> log_func(level, fmt, ap);</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> va_end(ap);</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span>}</div>
</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="foldopen" id="foldopen00086" data-start="{" data-end="}">
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"><a class="line" href="fuse__log_8h.html#ab1705f5f7e61431b7ca5f2a421d39565"> 86</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="fuse__log_8h.html#ab1705f5f7e61431b7ca5f2a421d39565">fuse_log_enable_syslog</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *ident, <span class="keywordtype">int</span> option, <span class="keywordtype">int</span> facility)</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span>{</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> to_syslog = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> openlog(ident, option, facility);</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span>}</div>
</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="foldopen" id="foldopen00093" data-start="{" data-end="}">
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"><a class="line" href="fuse__log_8h.html#a18631fd738519af89db82de2ea7c0034"> 93</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="fuse__log_8h.html#a18631fd738519af89db82de2ea7c0034">fuse_log_close_syslog</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span>{</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> closelog();</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span>}</div>
</div>
<div class="ttc" id="afuse__log_8h_html"><div class="ttname"><a href="fuse__log_8h.html">fuse_log.h</a></div></div>
<div class="ttc" id="afuse__log_8h_html_a18631fd738519af89db82de2ea7c0034"><div class="ttname"><a href="fuse__log_8h.html#a18631fd738519af89db82de2ea7c0034">fuse_log_close_syslog</a></div><div class="ttdeci">void fuse_log_close_syslog(void)</div><div class="ttdef"><b>Definition</b> <a href="fuse__log_8c_source.html#l00093">fuse_log.c:93</a></div></div>
<div class="ttc" id="afuse__log_8h_html_a4506ffd6ed3a631e01999b32b1eb8621"><div class="ttname"><a href="fuse__log_8h.html#a4506ffd6ed3a631e01999b32b1eb8621">fuse_log</a></div><div class="ttdeci">void fuse_log(enum fuse_log_level level, const char *fmt,...)</div><div class="ttdef"><b>Definition</b> <a href="fuse__log_8c_source.html#l00077">fuse_log.c:77</a></div></div>
<div class="ttc" id="afuse__log_8h_html_a76d80f5bae796dddb1d6b6a121968666"><div class="ttname"><a href="fuse__log_8h.html#a76d80f5bae796dddb1d6b6a121968666">fuse_log_func_t</a></div><div class="ttdeci">void(* fuse_log_func_t)(enum fuse_log_level level, const char *fmt, va_list ap)</div><div class="ttdef"><b>Definition</b> <a href="fuse__log_8h_source.html#l00052">fuse_log.h:52</a></div></div>
<div class="ttc" id="afuse__log_8h_html_ab1705f5f7e61431b7ca5f2a421d39565"><div class="ttname"><a href="fuse__log_8h.html#ab1705f5f7e61431b7ca5f2a421d39565">fuse_log_enable_syslog</a></div><div class="ttdeci">void fuse_log_enable_syslog(const char *ident, int option, int facility)</div><div class="ttdef"><b>Definition</b> <a href="fuse__log_8c_source.html#l00086">fuse_log.c:86</a></div></div>
<div class="ttc" id="afuse__log_8h_html_ad2c3b50473593e65865abaad574bd039"><div class="ttname"><a href="fuse__log_8h.html#ad2c3b50473593e65865abaad574bd039">fuse_log_level</a></div><div class="ttdeci">fuse_log_level</div><div class="ttdef"><b>Definition</b> <a href="fuse__log_8h_source.html#l00028">fuse_log.h:28</a></div></div>
<div class="ttc" id="afuse__log_8h_html_af19307887778edec299c02c1e858addd"><div class="ttname"><a href="fuse__log_8h.html#af19307887778edec299c02c1e858addd">fuse_set_log_func</a></div><div class="ttdeci">void fuse_set_log_func(fuse_log_func_t func)</div><div class="ttdef"><b>Definition</b> <a href="fuse__log_8c_source.html#l00069">fuse_log.c:69</a></div></div>
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