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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* gzguts.h -- zlib internal header definitions for gz* operations</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2004, 2005, 2010 Mark Adler</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * For conditions of distribution and use, see copyright notice in zlib.h</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> </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"> gzguts.h -- full import of the zlib-1.2.5.tar.gz source</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> Here version bumped to 1.2.5.1</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> 2011-07-01 - Geoff R. McLane</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> link-in to the FGx application, providing zlib compression</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> and decompression services</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> ------------------------------------------------------ */</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#define FGX_GZGUTS_H</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#ifdef _MSC_VER</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#pragma warning ( disable : 4996 ) </span><span class="comment">/* remove MS specific 'use ISO C++ conformant name' and other warnings */</span><span class="preprocessor"></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifdef _LARGEFILE64_SOURCE</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor"># ifndef _LARGEFILE_SOURCE</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor"># define _LARGEFILE_SOURCE 1</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor"># ifdef _FILE_OFFSET_BITS</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"># undef _FILE_OFFSET_BITS</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#if defined(FGX_GZGUTS_H)</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"># define ZLIB_INTERNAL </span><span class="comment">/* FGx - special case - make this nothing */</span><span class="preprocessor"></span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"># define ZLIB_INTERNAL __attribute__((visibility ("hidden")))</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor"># define ZLIB_INTERNAL</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#endif </span><span class="comment">/* FGX_GZGUTS_H y/n */</span><span class="preprocessor"></span></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">#include <stdio.h></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "fgx_zlib.h"</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#ifdef STDC</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"># include <string.h></span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"># include <stdlib.h></span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"># include <limits.h></span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#include <fcntl.h></span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#ifdef NO_DEFLATE </span><span class="comment">/* for compatibility with old definition */</span><span class="preprocessor"></span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor"># define NO_GZCOMPRESS</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#ifdef _MSC_VER</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor"># include <io.h></span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor"># define vsnprintf _vsnprintf</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#include <unistd.h></span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#ifndef local</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"># define local static</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment">/* compile with -Dlocal if your debugger can't find static symbols */</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment">/* gz* functions always use library allocation functions */</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#ifndef STDC</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">extern</span> voidp malloc OF((uInt size));</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">extern</span> <span class="keywordtype">void</span> free OF((voidpf ptr));</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment">/* get errno and strerror definition */</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#if defined UNDER_CE</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor"># include <windows.h></span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor"># define zstrerror() gz_strwinerror((DWORD)GetLastError())</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"># ifdef STDC</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor"># include <errno.h></span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"># define zstrerror() strerror(errno)</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor"># else</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor"># define zstrerror() "stdio error (consult errno)"</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor">#endif</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="comment">/* provide prototypes for these when building zlib without LFS */</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  ZEXTERN gzFile ZEXPORT gzopen64 OF((<span class="keyword">const</span> <span class="keywordtype">char</span> *, <span class="keyword">const</span> <span class="keywordtype">char</span> *));</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, <span class="keywordtype">int</span>));</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile));</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile));</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment">/* default i/o buffer size -- double this for output when reading */</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#define GZBUFSIZE 8192</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment">/* gzip modes, also provide a little integrity check on the passed structure */</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor">#define GZ_NONE 0</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor">#define GZ_READ 7247</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor">#define GZ_WRITE 31153</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor">#define GZ_APPEND 1 </span><span class="comment">/* mode set to GZ_WRITE after the file is opened */</span><span class="preprocessor"></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="comment">/* values for gz_state how */</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor">#define LOOK 0 </span><span class="comment">/* look for a gzip header */</span><span class="preprocessor"></span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor">#define COPY 1 </span><span class="comment">/* copy input directly */</span><span class="preprocessor"></span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor">#define GZIP 2 </span><span class="comment">/* decompress a gzip stream */</span><span class="preprocessor"></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"> 102</span> <span class="comment">/* internal gzip file state data structure */</span></div><div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="structgz__state.html"> 103</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">/* used for both reading and writing */</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordtype">int</span> mode; <span class="comment">/* see gzip modes above */</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">int</span> fd; <span class="comment">/* file descriptor */</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">char</span> *path; <span class="comment">/* path or fd for error messages */</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  z_off64_t pos; <span class="comment">/* current position in uncompressed data */</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordtype">unsigned</span> size; <span class="comment">/* buffer size, zero if not allocated yet */</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordtype">unsigned</span> want; <span class="comment">/* requested buffer size, default is GZBUFSIZE */</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *in; <span class="comment">/* input buffer */</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *out; <span class="comment">/* output buffer (double-sized when reading) */</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *next; <span class="comment">/* next output data to deliver or write */</span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">/* just for reading */</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordtype">unsigned</span> have; <span class="comment">/* amount of output data unused at next */</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordtype">int</span> eof; <span class="comment">/* true if end of input file reached */</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  z_off64_t start; <span class="comment">/* where the gzip data started, for rewinding */</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  z_off64_t raw; <span class="comment">/* where the raw data started, for seeking */</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordtype">int</span> how; <span class="comment">/* 0: get header, 1: copy, 2: decompress */</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">int</span> direct; <span class="comment">/* true if last read direct, false if gzip */</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">/* just for writing */</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">int</span> level; <span class="comment">/* compression level */</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">int</span> strategy; <span class="comment">/* compression strategy */</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">/* seek request */</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  z_off64_t skip; <span class="comment">/* amount to skip (already rewound if backwards) */</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordtype">int</span> seek; <span class="comment">/* true if seek request pending */</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">/* error information */</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">int</span> err; <span class="comment">/* error code */</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">char</span> *msg; <span class="comment">/* error message */</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="comment">/* zlib inflate or deflate stream */</span></div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="structz__stream__s.html">z_stream</a> strm; <span class="comment">/* stream structure in-place (not a pointer) */</span></div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> } <a class="code" href="structgz__state.html">gz_state</a>;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="keyword">typedef</span> <a class="code" href="structgz__state.html">gz_state</a> FAR *gz_statep;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment">/* shared functions */</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="keywordtype">void</span> ZLIB_INTERNAL gz_error OF((gz_statep, <span class="keywordtype">int</span>, <span class="keyword">const</span> <span class="keywordtype">char</span> *));</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="preprocessor">#if defined UNDER_CE</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="keywordtype">char</span> ZLIB_INTERNAL *gz_strwinerror OF((DWORD error));</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment">/* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"> value -- needed when comparing unsigned to z_off64_t, which is signed</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment"> (possible z_off64_t types off_t, off64_t, and long are all signed) */</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="preprocessor">#ifdef INT_MAX</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="preprocessor"># define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX)</span></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="keywordtype">unsigned</span> ZLIB_INTERNAL gz_intmax OF((<span class="keywordtype">void</span>));</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="preprocessor"># define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax())</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="structgz__state_html"><div class="ttname"><a href="structgz__state.html">gz_state</a></div><div class="ttdef"><b>Definition:</b> gzguts.h:103</div></div>
<div class="ttc" id="structz__stream__s_html"><div class="ttname"><a href="structz__stream__s.html">z_stream_s</a></div><div class="ttdef"><b>Definition:</b> fgx_zlib.h:94</div></div>
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