<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.12"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>libcbor: src/cbor/internal/encoders.c Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> <link href="customdoxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">libcbor  <span id="projectnumber">0.5.0</span> </div> <div id="projectbrief">libcbor is a C library for parsing and generating CBOR, the general-purpose schema-less binary data format.</div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.12 --> <script type="text/javascript"> var searchBox = new SearchBox("searchBox", "search",false,'Search'); </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); </script> <div id="main-nav"></div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_cb565ba51d82ea933604984cbab6233d.html">cbor</a></li><li class="navelem"><a class="el" href="dir_3ebe94c85f6786bf802771098c1d09bb.html">internal</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">encoders.c</div> </div> </div><!--header--> <div class="contents"> <a href="encoders_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2014-2017 Pavel Kalvoda <me@pavelkalvoda.com></span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * libcbor is free software; you can redistribute it and/or modify</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * it under the terms of the MIT license. See LICENSE for details.</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> </div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "<a class="code" href="encoders_8h.html">encoders.h</a>"</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#if HAVE_ENDIAN_H</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <endian.h></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="encoders_8h.html#a32eb27ea8f535e166b40c7be50ab8eb1"> 14</a></span> <span class="keywordtype">size_t</span> <a class="code" href="encoders_8c.html#a32eb27ea8f535e166b40c7be50ab8eb1">_cbor_encode_uint8</a>(uint8_t value, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">size_t</span> buffer_size, uint8_t offset)</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> {</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  <span class="keywordflow">if</span> (value <= 23) {</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="keywordflow">if</span> (buffer_size >= 1) {</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  buffer[0] = value + offset;</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  }</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="keywordflow">if</span> (buffer_size >= 2) {</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  buffer[0] = 0x18 + offset;</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  buffer[1] = value;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordflow">return</span> 2;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  }</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  }</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordflow">return</span> 0;</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> </div><div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="encoders_8h.html#a18c7f670aae9fa3f03a2ba58e6590c43"> 31</a></span> <span class="keywordtype">size_t</span> <a class="code" href="encoders_8c.html#a18c7f670aae9fa3f03a2ba58e6590c43">_cbor_encode_uint16</a>(uint16_t value, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">size_t</span> buffer_size, uint8_t offset)</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="keywordflow">if</span> (buffer_size >= 3) {</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  buffer[0] = 0x19 + offset;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#ifdef HAVE_ENDIAN_H</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  *(uint16_t *) &buffer[1] = htobe16(value);</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"> #ifdef IS_BIG_ENDIAN</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  *(uint16_t *) &buffer[1] = value;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"> #else</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  buffer[1] = value >> 8;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  buffer[2] = value;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor"> #endif</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> 3;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  } <span class="keywordflow">else</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="encoders_8h.html#a58efe8377be9b98013828ed27752e212"> 52</a></span> <span class="keywordtype">size_t</span> <a class="code" href="encoders_8c.html#a58efe8377be9b98013828ed27752e212">_cbor_encode_uint32</a>(uint32_t value, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">size_t</span> buffer_size, uint8_t offset)</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="keywordflow">if</span> (buffer_size >= 5) {</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  buffer[0] = 0x1A + offset;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#ifdef HAVE_ENDIAN_H</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  *(uint32_t *) &buffer[1] = htobe32(value);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor"> #ifdef IS_BIG_ENDIAN</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  *(uint32_t *) &buffer[1] = value;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor"> #else</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  buffer[1] = value >> 24;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  buffer[2] = value >> 16;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  buffer[3] = value >> 8;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  buffer[4] = value;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor"> #endif</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> 5;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  } <span class="keywordflow">else</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> }</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="encoders_8h.html#a6770d92d21edd8100cfd48ab443fc566"> 75</a></span> <span class="keywordtype">size_t</span> <a class="code" href="encoders_8c.html#a6770d92d21edd8100cfd48ab443fc566">_cbor_encode_uint64</a>(uint64_t value, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">size_t</span> buffer_size, uint8_t offset)</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>  <span class="keywordflow">if</span> (buffer_size >= 9) {</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  buffer[0] = 0x1B + offset;</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="preprocessor">#ifdef HAVE_ENDIAN_H</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  *(uint64_t *) &buffer[1] = htobe64(value);</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor"> #ifdef IS_BIG_ENDIAN</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  *(uint64_t *) &buffer[1] = value;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor"> #else</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  buffer[1] = value >> 56;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  buffer[2] = value >> 48;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  buffer[3] = value >> 40;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  buffer[4] = value >> 32;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  buffer[5] = value >> 24;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  buffer[6] = value >> 16;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  buffer[7] = value >> 8;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  buffer[8] = value;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor"> #endif</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">return</span> 9;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  } <span class="keywordflow">else</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> }</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="encoders_8h.html#ad0b03bdce1727977d8c8307e2a91590a"> 102</a></span> <span class="keywordtype">size_t</span> <a class="code" href="encoders_8c.html#ad0b03bdce1727977d8c8307e2a91590a">_cbor_encode_uint</a>(uint64_t value, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">size_t</span> buffer_size, uint8_t offset)</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">if</span> (value <= UINT16_MAX) <span class="keywordflow">if</span> (value <= UINT8_MAX)</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> <a class="code" href="encoders_8c.html#a32eb27ea8f535e166b40c7be50ab8eb1">_cbor_encode_uint8</a>((uint8_t) value, buffer, buffer_size, offset);</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">return</span> <a class="code" href="encoders_8c.html#a18c7f670aae9fa3f03a2ba58e6590c43">_cbor_encode_uint16</a>((uint16_t) value, buffer, buffer_size, offset);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (value <= UINT32_MAX)</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">return</span> <a class="code" href="encoders_8c.html#a58efe8377be9b98013828ed27752e212">_cbor_encode_uint32</a>((uint32_t) value, buffer, buffer_size, offset);</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> <a class="code" href="encoders_8c.html#a6770d92d21edd8100cfd48ab443fc566">_cbor_encode_uint64</a>((uint64_t) value, buffer, buffer_size, offset);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> }</div><div class="ttc" id="encoders_8c_html_a18c7f670aae9fa3f03a2ba58e6590c43"><div class="ttname"><a href="encoders_8c.html#a18c7f670aae9fa3f03a2ba58e6590c43">_cbor_encode_uint16</a></div><div class="ttdeci">size_t _cbor_encode_uint16(uint16_t value, unsigned char *buffer, size_t buffer_size, uint8_t offset)</div><div class="ttdef"><b>Definition:</b> <a href="encoders_8c_source.html#l00031">encoders.c:31</a></div></div> <div class="ttc" id="encoders_8c_html_a6770d92d21edd8100cfd48ab443fc566"><div class="ttname"><a href="encoders_8c.html#a6770d92d21edd8100cfd48ab443fc566">_cbor_encode_uint64</a></div><div class="ttdeci">size_t _cbor_encode_uint64(uint64_t value, unsigned char *buffer, size_t buffer_size, uint8_t offset)</div><div class="ttdef"><b>Definition:</b> <a href="encoders_8c_source.html#l00075">encoders.c:75</a></div></div> <div class="ttc" id="encoders_8c_html_a58efe8377be9b98013828ed27752e212"><div class="ttname"><a href="encoders_8c.html#a58efe8377be9b98013828ed27752e212">_cbor_encode_uint32</a></div><div class="ttdeci">size_t _cbor_encode_uint32(uint32_t value, unsigned char *buffer, size_t buffer_size, uint8_t offset)</div><div class="ttdef"><b>Definition:</b> <a href="encoders_8c_source.html#l00052">encoders.c:52</a></div></div> <div class="ttc" id="encoders_8c_html_ad0b03bdce1727977d8c8307e2a91590a"><div class="ttname"><a href="encoders_8c.html#ad0b03bdce1727977d8c8307e2a91590a">_cbor_encode_uint</a></div><div class="ttdeci">size_t _cbor_encode_uint(uint64_t value, unsigned char *buffer, size_t buffer_size, uint8_t offset)</div><div class="ttdef"><b>Definition:</b> <a href="encoders_8c_source.html#l00102">encoders.c:102</a></div></div> <div class="ttc" id="encoders_8c_html_a32eb27ea8f535e166b40c7be50ab8eb1"><div class="ttname"><a href="encoders_8c.html#a32eb27ea8f535e166b40c7be50ab8eb1">_cbor_encode_uint8</a></div><div class="ttdeci">size_t _cbor_encode_uint8(uint8_t value, unsigned char *buffer, size_t buffer_size, uint8_t offset)</div><div class="ttdef"><b>Definition:</b> <a href="encoders_8c_source.html#l00014">encoders.c:14</a></div></div> <div class="ttc" id="encoders_8h_html"><div class="ttname"><a href="encoders_8h.html">encoders.h</a></div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated on Mon Feb 6 2017 00:26:19 for libcbor by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.12 </small></address> </body> </html> |