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<h1>lib/rpmlead.c</h1><a href="rpmlead_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00005"></a>00005 <span class="preprocessor">#include "<a class="code" href="system_8h.html">system.h</a>"</span>
<a name="l00006"></a>00006
<a name="l00007"></a>00007 <span class="preprocessor">#if HAVE_MACHINE_TYPES_H</span>
<a name="l00008"></a>00008 <span class="preprocessor"></span><span class="preprocessor"># include <machine/types.h></span>
<a name="l00009"></a>00009 <span class="preprocessor">#endif</span>
<a name="l00010"></a>00010 <span class="preprocessor"></span>
<a name="l00011"></a>00011 <span class="preprocessor">#include <netinet/in.h></span>
<a name="l00012"></a>00012
<a name="l00013"></a>00013 <span class="preprocessor">#include <<a class="code" href="rpmlib_8h.html">rpmlib.h</a>></span>
<a name="l00014"></a>00014
<a name="l00015"></a>00015 <span class="preprocessor">#include "<a class="code" href="signature_8h.html">signature.h</a>"</span>
<a name="l00016"></a>00016 <span class="preprocessor">#include "<a class="code" href="rpmlead_8h.html">rpmlead.h</a>"</span>
<a name="l00017"></a>00017 <span class="preprocessor">#include "<a class="code" href="debug_8h.html">debug.h</a>"</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="comment">/*@unchecked@*/</span> <span class="comment">/*@observer@*/</span>
<a name="l00020"></a><a class="code" href="rpmlead_8c.html#67b9b25c2cfa19f0cb46b9da58886ca1">00020</a> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="rpmlead_8c.html#67b9b25c2cfa19f0cb46b9da58886ca1">lead_magic</a>[] = {
<a name="l00021"></a>00021 <a class="code" href="rpmlib_8h.html#7dd9e83db48068baaeb89d251bdf8a30">RPMLEAD_MAGIC0</a>, <a class="code" href="rpmlib_8h.html#710fc6e7679053b529b1defef46f23a4">RPMLEAD_MAGIC1</a>, <a class="code" href="rpmlib_8h.html#0018d9bb195c08e7c6aa03aaa079a684">RPMLEAD_MAGIC2</a>, <a class="code" href="rpmlib_8h.html#066a449fc4d32300630ef72530577028">RPMLEAD_MAGIC3</a>
<a name="l00022"></a>00022 };
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="comment">/* The lead needs to be 8 byte aligned */</span>
<a name="l00025"></a>00025
<a name="l00026"></a><a class="code" href="group__lead.html#g59b7cb8f92595d027adcde57a25d1d3a">00026</a> <a class="code" href="rpmlib_8h.html#06da857c39457bfb6ea9049643fdb706">rpmRC</a> <a class="code" href="group__lead.html#g59b7cb8f92595d027adcde57a25d1d3a">writeLead</a>(<a class="code" href="struct__FD__s.html">FD_t</a> <a class="code" href="structrpmEIU.html#ebaf62c9ce05b08a4bfa85172542b5e4">fd</a>, <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structrpmlead.html">rpmlead</a> *lead)
<a name="l00027"></a>00027 {
<a name="l00028"></a>00028 <span class="keyword">struct </span><a class="code" href="structrpmlead.html">rpmlead</a> l;
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="comment">/*@-boundswrite@*/</span>
<a name="l00031"></a>00031 memcpy(&l, lead, <span class="keyword">sizeof</span>(l));
<a name="l00032"></a>00032
<a name="l00033"></a>00033 memcpy(&l.magic, <a class="code" href="rpmlead_8c.html#67b9b25c2cfa19f0cb46b9da58886ca1">lead_magic</a>, <span class="keyword">sizeof</span>(l.magic));
<a name="l00034"></a>00034 <span class="comment">/*@=boundswrite@*/</span>
<a name="l00035"></a>00035 l.type = htons(l.type);
<a name="l00036"></a>00036 l.archnum = htons(l.archnum);
<a name="l00037"></a>00037 l.osnum = htons(l.osnum);
<a name="l00038"></a>00038 l.signature_type = htons(l.signature_type);
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="comment">/*@-boundswrite@*/</span>
<a name="l00041"></a>00041 <span class="keywordflow">if</span> (<a class="code" href="rpmio_8c.html#ce5d48cc70864787df48c3d233edb997">Fwrite</a>(&l, 1, <span class="keyword">sizeof</span>(l), fd) != <span class="keyword">sizeof</span>(l))
<a name="l00042"></a>00042 <span class="keywordflow">return</span> <a class="code" href="rpmlib_8h.html#a30b10f32f3a5e820ec05d099993e8012e6125219f145fbb73353bc6ccac5cfc">RPMRC_FAIL</a>;
<a name="l00043"></a>00043 <span class="comment">/*@=boundswrite@*/</span>
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="keywordflow">return</span> <a class="code" href="rpmlib_8h.html#a30b10f32f3a5e820ec05d099993e801b6a502fb02cfd2c16380fa6ac52902d4">RPMRC_OK</a>;
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047
<a name="l00048"></a><a class="code" href="group__lead.html#gedcd58cbf7f3ac2c6fd1027f9713f65a">00048</a> <a class="code" href="rpmlib_8h.html#06da857c39457bfb6ea9049643fdb706">rpmRC</a> <a class="code" href="group__lead.html#gedcd58cbf7f3ac2c6fd1027f9713f65a">readLead</a>(<a class="code" href="struct__FD__s.html">FD_t</a> fd, <span class="keyword">struct</span> <a class="code" href="structrpmlead.html">rpmlead</a> *lead)
<a name="l00049"></a>00049 {
<a name="l00050"></a>00050 <span class="comment">/*@-boundswrite@*/</span>
<a name="l00051"></a>00051 memset(lead, 0, <span class="keyword">sizeof</span>(*lead));
<a name="l00052"></a>00052 <span class="comment">/*@=boundswrite@*/</span>
<a name="l00053"></a>00053 <span class="comment">/*@-type@*/</span> <span class="comment">/* FIX: remove timed read */</span>
<a name="l00054"></a>00054 <span class="keywordflow">if</span> (<a class="code" href="rpmio_8h.html#d16ce8d9b736be2ff4242f9af09ce5e1">timedRead</a>(fd, (<span class="keywordtype">char</span> *)lead, <span class="keyword">sizeof</span>(*lead)) != <span class="keyword">sizeof</span>(*lead)) {
<a name="l00055"></a>00055 <span class="keywordflow">if</span> (<a class="code" href="rpmio_8c.html#0f608c106ddef6245f5e9773a8e56b73">Ferror</a>(fd)) {
<a name="l00056"></a>00056 <a class="code" href="rpmerr_8h.html#29f3f082b0cd6acdcc70a31cbd613e1a">rpmError</a>(<a class="code" href="rpmerr_8h.html#d00dd16161260fe872fdf140cd8af55b06b49861cca231a3718d51179c8684da">RPMERR_READ</a>, <a class="code" href="system_8h.html#8a97de23397d8af6821824c0234d8c3c">_</a>(<span class="stringliteral">"read failed: %s (%d)\n"</span>),
<a name="l00057"></a>00057 <a class="code" href="rpmio_8c.html#0ef7b73c1eec295cb5f873879b143423">Fstrerror</a>(fd), <a class="code" href="system_8h.html#d65a8842cc674e3ddf69355898c0ecbf">errno</a>);
<a name="l00058"></a>00058 <span class="keywordflow">return</span> <a class="code" href="rpmlib_8h.html#a30b10f32f3a5e820ec05d099993e8012e6125219f145fbb73353bc6ccac5cfc">RPMRC_FAIL</a>;
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060 <span class="keywordflow">return</span> <a class="code" href="rpmlib_8h.html#a30b10f32f3a5e820ec05d099993e80163a651497a21974d2993a25d9b60208d">RPMRC_NOTFOUND</a>;
<a name="l00061"></a>00061 }
<a name="l00062"></a>00062 <span class="comment">/*@=type@*/</span>
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="keywordflow">if</span> (memcmp(lead->magic, <a class="code" href="rpmlead_8c.html#67b9b25c2cfa19f0cb46b9da58886ca1">lead_magic</a>, <span class="keyword">sizeof</span>(<a class="code" href="rpmlead_8c.html#67b9b25c2cfa19f0cb46b9da58886ca1">lead_magic</a>)))
<a name="l00065"></a>00065 <span class="keywordflow">return</span> <a class="code" href="rpmlib_8h.html#a30b10f32f3a5e820ec05d099993e80163a651497a21974d2993a25d9b60208d">RPMRC_NOTFOUND</a>;
<a name="l00066"></a>00066 lead->type = ntohs(lead->type);
<a name="l00067"></a>00067 lead->archnum = ntohs(lead->archnum);
<a name="l00068"></a>00068 lead->osnum = ntohs(lead->osnum);
<a name="l00069"></a>00069 lead->signature_type = ntohs(lead->signature_type);
<a name="l00070"></a>00070 <span class="keywordflow">if</span> (lead->signature_type != <a class="code" href="group__signature.html#gg79af55ea6949058cea8ac4e967a4eb4318db96ffe5c787a97b239ca7dfc66ba8">RPMSIGTYPE_HEADERSIG</a>)
<a name="l00071"></a>00071 <span class="keywordflow">return</span> <a class="code" href="rpmlib_8h.html#a30b10f32f3a5e820ec05d099993e80163a651497a21974d2993a25d9b60208d">RPMRC_NOTFOUND</a>;
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="keywordflow">return</span> <a class="code" href="rpmlib_8h.html#a30b10f32f3a5e820ec05d099993e801b6a502fb02cfd2c16380fa6ac52902d4">RPMRC_OK</a>;
<a name="l00074"></a>00074 }
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