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<div class="title">netsupp.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * This file is part of the KDE libraries</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 2000,2001 Thiago Macieira <thiago.macieira@kdemail.net></span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment"> * modify it under the terms of the GNU Library General Public</span>
<a name="l00007"></a>00007 <span class="comment"> * License as published by the Free Software Foundation; either</span>
<a name="l00008"></a>00008 <span class="comment"> * version 2 of the License, or (at your option) any later version.</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * This library is distributed in the hope that it will be useful,</span>
<a name="l00011"></a>00011 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00012"></a>00012 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00013"></a>00013 <span class="comment"> * Library General Public License for more details.</span>
<a name="l00014"></a>00014 <span class="comment"> *</span>
<a name="l00015"></a>00015 <span class="comment"> * You should have received a copy of the GNU Library General Public License</span>
<a name="l00016"></a>00016 <span class="comment"> * along with this library; see the file COPYING.LIB. If not, write to</span>
<a name="l00017"></a>00017 <span class="comment"> * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00018"></a>00018 <span class="comment"> * Boston, MA 02110-1301, USA.</span>
<a name="l00019"></a>00019 <span class="comment"> **/</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="preprocessor">#include <sys/types.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <sys/socket.h></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <sys/un.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <netinet/in.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <stdio.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <errno.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <unistd.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <arpa/inet.h></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#include <qglobal.h></span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="comment">// This is so that, if addrinfo is defined, it doesn't clobber our definition</span>
<a name="l00034"></a>00034 <span class="comment">// It might be defined in the few cases in which we are replacing the system's</span>
<a name="l00035"></a>00035 <span class="comment">// broken getaddrinfo</span>
<a name="l00036"></a>00036 <span class="preprocessor">#include <netdb.h></span>
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="preprocessor">#include "config.h"</span>
<a name="l00039"></a>00039 <span class="preprocessor">#include "kdebug.h"</span>
<a name="l00040"></a>00040 <span class="preprocessor">#include "<a class="code" href="klocale_8h.html">klocale.h</a>"</span>
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="preprocessor">#ifndef IN6_IS_ADDR_V4MAPPED</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="preprocessor">#define NEED_IN6_TESTS</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span><span class="preprocessor">#undef CLOBBER_IN6</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span><span class="preprocessor">#include "netsupp.h"</span>
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="preprocessor">#if defined(__hpux) || defined(_HPUX_SOURCE)</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="keywordtype">int</span> h_errno;
<a name="l00050"></a>00050 <span class="preprocessor">#endif</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span>
<a name="l00052"></a>00052 <span class="preprocessor">#include <kdemacros.h></span>
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="preprocessor">#if !defined(kde_sockaddr_in6)</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span><span class="comment">/*</span>
<a name="l00056"></a>00056 <span class="comment"> * kde_sockaddr_in6 might have got defined even though we #undef'ed</span>
<a name="l00057"></a>00057 <span class="comment"> * CLOBBER_IN6. This happens when we are compiling under --enable-final.</span>
<a name="l00058"></a>00058 <span class="comment"> * However, in that case, if it was defined, that's because ksockaddr.cpp</span>
<a name="l00059"></a>00059 <span class="comment"> * had it defined because sockaddr_in6 didn't exist, and so sockaddr_in6</span>
<a name="l00060"></a>00060 <span class="comment"> * exists and is our kde_sockaddr_in6</span>
<a name="l00061"></a>00061 <span class="comment"> */</span>
<a name="l00062"></a>00062 <span class="preprocessor"># define sockaddr_in6 kde_sockaddr_in6</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span><span class="preprocessor"># define in6_addr kde_in6_addr</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span>
<a name="l00066"></a>00066 <span class="preprocessor">#ifdef offsetof</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span><span class="preprocessor">#undef offsetof</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00069"></a>00069 <span class="preprocessor"></span><span class="preprocessor">#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)</span>
<a name="l00070"></a>00070 <span class="preprocessor"></span>
<a name="l00071"></a>00071 <span class="comment">/*</span>
<a name="l00072"></a>00072 <span class="comment"> * These constants tell the flags in KDE::resolverFlags</span>
<a name="l00073"></a>00073 <span class="comment"> * The user could (but shouldn't) test the variable to know what kind of</span>
<a name="l00074"></a>00074 <span class="comment"> * resolution is supported</span>
<a name="l00075"></a>00075 <span class="comment"> */</span>
<a name="l00076"></a>00076 <span class="preprocessor">#define KRF_KNOWS_AF_INET6 0x01 </span><span class="comment">/* if present, the code knows about AF_INET6 */</span>
<a name="l00077"></a>00077 <span class="preprocessor">#define KRF_USING_OWN_GETADDRINFO 0x02 </span><span class="comment">/* if present, we are using our own getaddrinfo */</span>
<a name="l00078"></a>00078 <span class="preprocessor">#define KRF_USING_OWN_INET_NTOP 0x04 </span><span class="comment">/* if present, we are using our own inet_ntop */</span>
<a name="l00079"></a>00079 <span class="preprocessor">#define KRF_USING_OWN_INET_PTON 0x08 </span><span class="comment">/* if present, we are using our own inet_pton */</span>
<a name="l00080"></a>00080 <span class="preprocessor">#define KRF_CAN_RESOLVE_UNIX 0x100 </span><span class="comment">/* if present, the resolver can resolve Unix sockets */</span>
<a name="l00081"></a>00081 <span class="preprocessor">#define KRF_CAN_RESOLVE_IPV4 0x200 </span><span class="comment">/* if present, the resolver can resolve to IPv4 */</span>
<a name="l00082"></a>00082 <span class="preprocessor">#define KRF_CAN_RESOLVE_IPV6 0x400 </span><span class="comment">/* if present, the resolver can resolve to IPv6 */</span>
<a name="l00083"></a>00083
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="keyword">static</span> <span class="keywordtype">void</span> dofreeaddrinfo(<span class="keyword">struct</span> addrinfo *ai)
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 <span class="keywordflow">while</span> (ai)
<a name="l00088"></a>00088 {
<a name="l00089"></a>00089 <span class="keyword">struct </span>addrinfo *ai2 = ai;
<a name="l00090"></a>00090 <span class="keywordflow">if</span> (ai->ai_canonname != NULL)
<a name="l00091"></a>00091 free(ai->ai_canonname);
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="keywordflow">if</span> (ai->ai_addr != NULL)
<a name="l00094"></a>00094 free(ai->ai_addr);
<a name="l00095"></a>00095
<a name="l00096"></a>00096 ai = ai->ai_next;
<a name="l00097"></a>00097 free(ai2);
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="keywordtype">void</span> kde_freeaddrinfo(<span class="keyword">struct</span> kde_addrinfo *ai)
<a name="l00102"></a>00102 {
<a name="l00103"></a>00103 <span class="keywordflow">if</span> (ai->origin == KAI_LOCALUNIX)
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 <span class="keyword">struct </span>addrinfo *p, *last = NULL;
<a name="l00106"></a>00106 <span class="comment">/* We've added one AF_UNIX socket in here, to the</span>
<a name="l00107"></a>00107 <span class="comment"> * tail of the linked list. We have to find it */</span>
<a name="l00108"></a>00108 <span class="keywordflow">for</span> (p = ai->data; p; p = p->ai_next)
<a name="l00109"></a>00109 {
<a name="l00110"></a>00110 <span class="keywordflow">if</span> (p->ai_family == AF_UNIX)
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 <span class="keywordflow">if</span> (last)
<a name="l00113"></a>00113 {
<a name="l00114"></a>00114 last->ai_next = NULL;
<a name="l00115"></a>00115 freeaddrinfo(ai->data);
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 dofreeaddrinfo(p);
<a name="l00118"></a>00118 <span class="keywordflow">break</span>;
<a name="l00119"></a>00119 }
<a name="l00120"></a>00120 last = p;
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123 <span class="keywordflow">else</span>
<a name="l00124"></a>00124 freeaddrinfo(ai->data);
<a name="l00125"></a>00125
<a name="l00126"></a>00126 free(ai);
<a name="l00127"></a>00127 }
<a name="l00128"></a>00128
<a name="l00129"></a>00129 <span class="keyword">static</span> <span class="keyword">struct </span>addrinfo*
<a name="l00130"></a>00130 make_unix(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> <span class="keywordtype">char</span> *serv)
<a name="l00131"></a>00131 {
<a name="l00132"></a>00132 <span class="keyword">const</span> <span class="keywordtype">char</span> *buf;
<a name="l00133"></a>00133 <span class="keyword">struct </span>addrinfo *p;
<a name="l00134"></a>00134 <span class="keyword">struct </span>sockaddr_un *_sun;
<a name="l00135"></a>00135 <span class="keywordtype">int</span> len;
<a name="l00136"></a>00136
<a name="l00137"></a>00137 p = (addrinfo*)malloc(<span class="keyword">sizeof</span>(*p));
<a name="l00138"></a>00138 <span class="keywordflow">if</span> (p == NULL)
<a name="l00139"></a>00139 <span class="keywordflow">return</span> NULL;
<a name="l00140"></a>00140 memset(p, 0, <span class="keyword">sizeof</span>(*p));
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="keywordflow">if</span> (name != NULL)
<a name="l00143"></a>00143 buf = name;
<a name="l00144"></a>00144 <span class="keywordflow">else</span>
<a name="l00145"></a>00145 buf = serv;
<a name="l00146"></a>00146
<a name="l00147"></a>00147 <span class="comment">// Calculate length of the binary representation</span>
<a name="l00148"></a>00148 len = strlen(buf) + offsetof(<span class="keyword">struct</span> sockaddr_un, sun_path) + 1;
<a name="l00149"></a>00149 <span class="keywordflow">if</span> (*buf != <span class="charliteral">'/'</span>)
<a name="l00150"></a>00150 len += 5; <span class="comment">// strlen("/tmp/");</span>
<a name="l00151"></a>00151
<a name="l00152"></a>00152 _sun = (sockaddr_un*)malloc(len);
<a name="l00153"></a>00153 <span class="keywordflow">if</span> (_sun == NULL)
<a name="l00154"></a>00154 {
<a name="l00155"></a>00155 <span class="comment">// Oops</span>
<a name="l00156"></a>00156 free(p);
<a name="l00157"></a>00157 <span class="keywordflow">return</span> NULL;
<a name="l00158"></a>00158 }
<a name="l00159"></a>00159
<a name="l00160"></a>00160 _sun->sun_family = AF_UNIX;
<a name="l00161"></a>00161 <span class="preprocessor"># ifdef HAVE_STRUCT_SOCKADDR_SA_LEN</span>
<a name="l00162"></a>00162 <span class="preprocessor"></span> _sun->sun_len = len;
<a name="l00163"></a>00163 <span class="preprocessor"># endif</span>
<a name="l00164"></a>00164 <span class="preprocessor"></span> <span class="keywordflow">if</span> (*buf == <span class="charliteral">'/'</span>)
<a name="l00165"></a>00165 *_sun->sun_path = <span class="charliteral">'\0'</span>; <span class="comment">// empty it</span>
<a name="l00166"></a>00166 <span class="keywordflow">else</span>
<a name="l00167"></a>00167 strcpy(_sun->sun_path, <span class="stringliteral">"/tmp/"</span>);
<a name="l00168"></a>00168 strcat(_sun->sun_path, buf);
<a name="l00169"></a>00169
<a name="l00170"></a>00170 <span class="comment">// Set the addrinfo</span>
<a name="l00171"></a>00171 p->ai_family = AF_UNIX;
<a name="l00172"></a>00172 p->ai_addrlen = len;
<a name="l00173"></a>00173 p->ai_addr = (sockaddr*)_sun;
<a name="l00174"></a>00174 p->ai_canonname = strdup(buf);
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="keywordflow">return</span> p;
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178
<a name="l00179"></a>00179 <span class="comment">// Ugh. I hate #ifdefs</span>
<a name="l00180"></a>00180 <span class="comment">// Anyways, here's what this does:</span>
<a name="l00181"></a>00181 <span class="comment">// KDE_IPV6_LOOKUP_MODE != 1, this function doesn't exist</span>
<a name="l00182"></a>00182 <span class="comment">// AF_INET6 not defined, we say there is no IPv6 stack</span>
<a name="l00183"></a>00183 <span class="comment">// otherwise, we try to create a socket.</span>
<a name="l00184"></a>00184 <span class="comment">// returns: 1 for IPv6 stack available, 2 for not available</span>
<a name="l00185"></a>00185 <span class="preprocessor">#if defined(KDE_IPV6_LOOKUP_MODE) && KDE_IPV6_LOOKUP_MODE == 1</span>
<a name="l00186"></a>00186 <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> check_ipv6_stack()
<a name="l00187"></a>00187 {
<a name="l00188"></a>00188 <span class="preprocessor"># ifndef AF_INET6</span>
<a name="l00189"></a>00189 <span class="preprocessor"></span> <span class="keywordflow">return</span> 2; <span class="comment">// how can we check?</span>
<a name="l00190"></a>00190 <span class="preprocessor"># else</span>
<a name="l00191"></a>00191 <span class="preprocessor"></span> <span class="keywordflow">if</span> (getenv(<span class="stringliteral">"KDE_NO_IPV6"</span>))
<a name="l00192"></a>00192 <span class="keywordflow">return</span> 2;
<a name="l00193"></a>00193 <span class="keywordtype">int</span> fd = ::socket(AF_INET6, SOCK_STREAM, 0);
<a name="l00194"></a>00194 <span class="keywordflow">if</span> (fd == -1)
<a name="l00195"></a>00195 <span class="keywordflow">return</span> 2;
<a name="l00196"></a>00196
<a name="l00197"></a>00197 ::close(fd);
<a name="l00198"></a>00198 <span class="keywordflow">return</span> 1;
<a name="l00199"></a>00199 <span class="preprocessor"># endif</span>
<a name="l00200"></a>00200 <span class="preprocessor"></span>}
<a name="l00201"></a>00201 <span class="preprocessor">#endif</span>
<a name="l00202"></a>00202 <span class="preprocessor"></span>
<a name="l00203"></a>00203
<a name="l00204"></a>00204 <span class="comment">/*</span>
<a name="l00205"></a>00205 <span class="comment"> * Reason for using this function: kde_getaddrinfo</span>
<a name="l00206"></a>00206 <span class="comment"> *</span>
<a name="l00207"></a>00207 <span class="comment"> * I decided to add this wrapper function for getaddrinfo</span>
<a name="l00208"></a>00208 <span class="comment"> * and have this be called by KExtendedSocket instead of</span>
<a name="l00209"></a>00209 <span class="comment"> * the real getaddrinfo so that we can make sure that the</span>
<a name="l00210"></a>00210 <span class="comment"> * behavior is the desired one.</span>
<a name="l00211"></a>00211 <span class="comment"> *</span>
<a name="l00212"></a>00212 <span class="comment"> * Currently, the only "undesired" behavior is getaddrinfo</span>
<a name="l00213"></a>00213 <span class="comment"> * not returning PF_UNIX sockets in some implementations.</span>
<a name="l00214"></a>00214 <span class="comment"> *</span>
<a name="l00215"></a>00215 <span class="comment"> * getaddrinfo and family are defined in POSIX 1003.1g</span>
<a name="l00216"></a>00216 <span class="comment"> * (Protocol Independent Interfaces) and in RFC 2553</span>
<a name="l00217"></a>00217 <span class="comment"> * (Basic Socket Interface for IPv6). Whereas the RFC is ambiguosly</span>
<a name="l00218"></a>00218 <span class="comment"> * vague whether this family of functions should return Internet</span>
<a name="l00219"></a>00219 <span class="comment"> * sockets only or not, the name of the POSIX draft says</span>
<a name="l00220"></a>00220 <span class="comment"> * otherwise: it should be independent of protocol.</span>
<a name="l00221"></a>00221 <span class="comment"> *</span>
<a name="l00222"></a>00222 <span class="comment"> * So, my interpretation is that they should return every</span>
<a name="l00223"></a>00223 <span class="comment"> * kind of socket available and known and that's how I</span>
<a name="l00224"></a>00224 <span class="comment"> * designed KExtendedSocket on top of it.</span>
<a name="l00225"></a>00225 <span class="comment"> *</span>
<a name="l00226"></a>00226 <span class="comment"> * That's why there's this wrapper, to make sure PF_UNIX</span>
<a name="l00227"></a>00227 <span class="comment"> * sockets are returned when expected.</span>
<a name="l00228"></a>00228 <span class="comment"> */</span>
<a name="l00229"></a>00229
<a name="l00230"></a>00230 <span class="keywordtype">int</span> kde_getaddrinfo(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> <span class="keywordtype">char</span> *service,
<a name="l00231"></a>00231 <span class="keyword">const</span> <span class="keyword">struct</span> addrinfo* hint,
<a name="l00232"></a>00232 <span class="keyword">struct</span> kde_addrinfo** result)
<a name="l00233"></a>00233 {
<a name="l00234"></a>00234 <span class="keyword">struct </span>kde_addrinfo* res;
<a name="l00235"></a>00235 <span class="keyword">struct </span>addrinfo* p;
<a name="l00236"></a>00236 <span class="keywordtype">int</span> err = EAI_SERVICE;
<a name="l00237"></a>00237 <span class="preprocessor">#if defined(KDE_IPV6_LOOKUP_MODE) && KDE_IPV6_LOOKUP_MODE == 1</span>
<a name="l00238"></a>00238 <span class="preprocessor"></span> <span class="comment">// mode 1: do a check on whether we have an IPv6 stack</span>
<a name="l00239"></a>00239 <span class="keyword">static</span> <span class="keywordtype">int</span> ipv6_stack = 0; <span class="comment">// 0: unknown, 1: yes, 2: no</span>
<a name="l00240"></a>00240 <span class="preprocessor">#endif</span>
<a name="l00241"></a>00241 <span class="preprocessor"></span>
<a name="l00242"></a>00242 <span class="comment">// allocate memory for results</span>
<a name="l00243"></a>00243 res = (kde_addrinfo*)malloc(<span class="keyword">sizeof</span>(*res));
<a name="l00244"></a>00244 <span class="keywordflow">if</span> (res == NULL)
<a name="l00245"></a>00245 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00246"></a>00246 res->data = NULL;
<a name="l00247"></a>00247 res->origin = KAI_SYSTEM; <span class="comment">// at first, it'll be only system data</span>
<a name="l00248"></a>00248
<a name="l00249"></a>00249 <span class="keyword">struct </span>addrinfo* last = NULL;
<a name="l00250"></a>00250
<a name="l00251"></a>00251 <span class="comment">// Skip the getaddrinfo call and the ipv6 check for a UNIX socket.</span>
<a name="l00252"></a>00252 <span class="keywordflow">if</span> (hint && (hint->ai_family == PF_UNIX))
<a name="l00253"></a>00253 {
<a name="l00254"></a>00254 <span class="keywordflow">if</span> (service == NULL || *service == <span class="charliteral">'\0'</span>)
<a name="l00255"></a>00255 <span class="keywordflow">goto</span> out; <span class="comment">// can't be Unix if no service was requested</span>
<a name="l00256"></a>00256
<a name="l00257"></a>00257 <span class="comment">// Unix sockets must be localhost</span>
<a name="l00258"></a>00258 <span class="comment">// That is, either name is NULL or, if it's not, it must be empty,</span>
<a name="l00259"></a>00259 <span class="comment">// "*" or "localhost"</span>
<a name="l00260"></a>00260 <span class="keywordflow">if</span> (name != NULL && !(name[0] == <span class="charliteral">'\0'</span> || (name[0] == <span class="charliteral">'*'</span> && name[1] == <span class="charliteral">'\0'</span>) ||
<a name="l00261"></a>00261 strcmp(<span class="stringliteral">"localhost"</span>, name) == 0))
<a name="l00262"></a>00262 <span class="keywordflow">goto</span> out; <span class="comment">// isn't localhost</span>
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="keywordflow">goto</span> do_unix;
<a name="l00265"></a>00265 }
<a name="l00266"></a>00266
<a name="l00267"></a>00267 <span class="preprocessor">#if defined(KDE_IPV6_LOOKUP_MODE) && KDE_IPV6_LOOKUP_MODE != 0</span>
<a name="l00268"></a>00268 <span class="preprocessor"></span><span class="preprocessor"># if KDE_IPV6_LOOKUP_MODE == 1</span>
<a name="l00269"></a>00269 <span class="preprocessor"></span> <span class="comment">// mode 1: do a check on whether we have an IPv6 stack</span>
<a name="l00270"></a>00270 <span class="keywordflow">if</span> (ipv6_stack == 0)
<a name="l00271"></a>00271 ipv6_stack = check_ipv6_stack();
<a name="l00272"></a>00272
<a name="l00273"></a>00273 <span class="keywordflow">if</span> (ipv6_stack == 2)
<a name="l00274"></a>00274 {
<a name="l00275"></a>00275 <span class="preprocessor"># endif</span>
<a name="l00276"></a>00276 <span class="preprocessor"></span> <span class="comment">// here we have modes 1 and 2 (no lookups)</span>
<a name="l00277"></a>00277 <span class="comment">// this is shared code</span>
<a name="l00278"></a>00278 <span class="keyword">struct </span>addrinfo our_hint;
<a name="l00279"></a>00279 <span class="keywordflow">if</span> (hint != NULL)
<a name="l00280"></a>00280 {
<a name="l00281"></a>00281 memcpy(&our_hint, hint, <span class="keyword">sizeof</span>(our_hint));
<a name="l00282"></a>00282 <span class="keywordflow">if</span> (our_hint.ai_family == AF_UNSPEC)
<a name="l00283"></a>00283 our_hint.ai_family = AF_INET;
<a name="l00284"></a>00284 }
<a name="l00285"></a>00285 <span class="keywordflow">else</span>
<a name="l00286"></a>00286 {
<a name="l00287"></a>00287 memset(&our_hint, 0, <span class="keyword">sizeof</span>(our_hint));
<a name="l00288"></a>00288 our_hint.ai_family = AF_INET;
<a name="l00289"></a>00289 }
<a name="l00290"></a>00290
<a name="l00291"></a>00291 <span class="comment">// do the actual resolution</span>
<a name="l00292"></a>00292 err = getaddrinfo(name, service, &our_hint, &res->data);
<a name="l00293"></a>00293 <span class="preprocessor"># if KDE_IPV6_LOOKUP_MODE == 1</span>
<a name="l00294"></a>00294 <span class="preprocessor"></span> }
<a name="l00295"></a>00295 <span class="keywordflow">else</span>
<a name="l00296"></a>00296 <span class="preprocessor"># endif</span>
<a name="l00297"></a>00297 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00298"></a>00298 <span class="preprocessor"></span><span class="preprocessor">#if defined(KDE_IPV6_LOOKUP_MODE) && KDE_IPV6_LOOKUP_MODE != 2</span>
<a name="l00299"></a>00299 <span class="preprocessor"></span> <span class="comment">// do the IPV6 resolution</span>
<a name="l00300"></a>00300 err = getaddrinfo(name, service, hint, &res->data);
<a name="l00301"></a>00301 <span class="preprocessor">#endif</span>
<a name="l00302"></a>00302 <span class="preprocessor"></span>
<a name="l00303"></a>00303 <span class="comment">// Now we have to check whether the user could want a Unix socket</span>
<a name="l00304"></a>00304
<a name="l00305"></a>00305 <span class="keywordflow">if</span> (service == NULL || *service == <span class="charliteral">'\0'</span>)
<a name="l00306"></a>00306 <span class="keywordflow">goto</span> out; <span class="comment">// can't be Unix if no service was requested</span>
<a name="l00307"></a>00307
<a name="l00308"></a>00308 <span class="comment">// Unix sockets must be localhost</span>
<a name="l00309"></a>00309 <span class="comment">// That is, either name is NULL or, if it's not, it must be empty,</span>
<a name="l00310"></a>00310 <span class="comment">// "*" or "localhost"</span>
<a name="l00311"></a>00311 <span class="keywordflow">if</span> (name != NULL && !(name[0] == <span class="charliteral">'\0'</span> || (name[0] == <span class="charliteral">'*'</span> && name[1] == <span class="charliteral">'\0'</span>) ||
<a name="l00312"></a>00312 strcmp(<span class="stringliteral">"localhost"</span>, name) == 0))
<a name="l00313"></a>00313 <span class="keywordflow">goto</span> out; <span class="comment">// isn't localhost</span>
<a name="l00314"></a>00314
<a name="l00315"></a>00315 <span class="comment">// Unix sockets can only be returned if the user asked for a PF_UNSPEC</span>
<a name="l00316"></a>00316 <span class="comment">// or PF_UNIX socket type or gave us a NULL hint</span>
<a name="l00317"></a>00317 <span class="keywordflow">if</span> (hint != NULL && (hint->ai_family != PF_UNSPEC && hint->ai_family != PF_UNIX))
<a name="l00318"></a>00318 <span class="keywordflow">goto</span> out; <span class="comment">// user doesn't want Unix</span>
<a name="l00319"></a>00319
<a name="l00320"></a>00320 <span class="comment">// If we got here, then it means that the user might be expecting Unix</span>
<a name="l00321"></a>00321 <span class="comment">// sockets. The user wants a local socket, with a non-null service and</span>
<a name="l00322"></a>00322 <span class="comment">// has told us that they accept PF_UNIX sockets</span>
<a name="l00323"></a>00323 <span class="comment">// Check whether the system implementation returned Unix</span>
<a name="l00324"></a>00324 <span class="keywordflow">if</span> (err == 0)
<a name="l00325"></a>00325 <span class="keywordflow">for</span> (p = res->data; p; p = p->ai_next)
<a name="l00326"></a>00326 {
<a name="l00327"></a>00327 last = p; <span class="comment">// we have to find out which one is last anyways</span>
<a name="l00328"></a>00328 <span class="keywordflow">if</span> (p->ai_family == AF_UNIX)
<a name="l00329"></a>00329 <span class="comment">// there is an Unix node</span>
<a name="l00330"></a>00330 <span class="keywordflow">goto</span> out;
<a name="l00331"></a>00331 }
<a name="l00332"></a>00332
<a name="l00333"></a>00333 do_unix:
<a name="l00334"></a>00334 <span class="comment">// So, give the user a PF_UNIX socket</span>
<a name="l00335"></a>00335 p = make_unix(NULL, service);
<a name="l00336"></a>00336 <span class="keywordflow">if</span> (p == NULL)
<a name="l00337"></a>00337 {
<a name="l00338"></a>00338 err = EAI_MEMORY;
<a name="l00339"></a>00339 <span class="keywordflow">goto</span> out;
<a name="l00340"></a>00340 }
<a name="l00341"></a>00341 <span class="keywordflow">if</span> (hint != NULL)
<a name="l00342"></a>00342 p->ai_socktype = hint->ai_socktype;
<a name="l00343"></a>00343 <span class="keywordflow">if</span> (p->ai_socktype == 0)
<a name="l00344"></a>00344 p->ai_socktype = SOCK_STREAM; <span class="comment">// default</span>
<a name="l00345"></a>00345
<a name="l00346"></a>00346 <span class="keywordflow">if</span> (last)
<a name="l00347"></a>00347 last->ai_next = p;
<a name="l00348"></a>00348 <span class="keywordflow">else</span>
<a name="l00349"></a>00349 res->data = p;
<a name="l00350"></a>00350 res->origin = KAI_LOCALUNIX;
<a name="l00351"></a>00351 *result = res;
<a name="l00352"></a>00352 <span class="keywordflow">return</span> 0;
<a name="l00353"></a>00353
<a name="l00354"></a>00354 out:
<a name="l00355"></a>00355 <span class="keywordflow">if</span> (res->data != NULL)
<a name="l00356"></a>00356 freeaddrinfo(res->data);
<a name="l00357"></a>00357 free(res);
<a name="l00358"></a>00358 <span class="keywordflow">return</span> err;
<a name="l00359"></a>00359 }
<a name="l00360"></a>00360
<a name="l00361"></a>00361 <span class="preprocessor">#if defined(HAVE_GETADDRINFO) && !defined(HAVE_BROKEN_GETADDRINFO)</span>
<a name="l00362"></a>00362 <span class="preprocessor"></span>
<a name="l00363"></a>00363 <span class="preprocessor">#define KRF_getaddrinfo 0</span>
<a name="l00364"></a>00364 <span class="preprocessor"></span><span class="preprocessor">#define KRF_resolver 0</span>
<a name="l00365"></a>00365 <span class="preprocessor"></span>
<a name="l00366"></a>00366 <span class="preprocessor">#else // !defined(HAVE_GETADDRINFO) || defined(HAVE_BROKEN_GETADDRINFO)</span>
<a name="l00367"></a>00367 <span class="preprocessor"></span>
<a name="l00368"></a>00368 <span class="preprocessor">#define KRF_getaddrinfo KRF_USING_OWN_GETADDRINFO</span>
<a name="l00369"></a>00369 <span class="preprocessor"></span><span class="preprocessor">#define KRF_resolver KRF_CAN_RESOLVE_UNIX | KRF_CAN_RESOLVE_IPV4</span>
<a name="l00370"></a>00370 <span class="preprocessor"></span>
<a name="l00371"></a>00371 <span class="comment">/*</span>
<a name="l00372"></a>00372 <span class="comment"> * No getaddrinfo() in this system.</span>
<a name="l00373"></a>00373 <span class="comment"> * We shall provide our own</span>
<a name="l00374"></a>00374 <span class="comment"> */</span>
<a name="l00375"></a>00375
<a name="l00379"></a>00379 <span class="keyword">static</span> <span class="keywordtype">int</span> inet_lookup(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> portnum, <span class="keywordtype">int</span> protonum,
<a name="l00380"></a>00380 <span class="keyword">struct</span> addrinfo *p, <span class="keyword">const</span> <span class="keyword">struct</span> addrinfo *hint,
<a name="l00381"></a>00381 <span class="keyword">struct</span> addrinfo** result)
<a name="l00382"></a>00382 {
<a name="l00383"></a>00383 <span class="keyword">struct </span>addrinfo *q;
<a name="l00384"></a>00384 <span class="keyword">struct </span>hostent *h;
<a name="l00385"></a>00385 <span class="keyword">struct </span>sockaddr **psa = NULL;
<a name="l00386"></a>00386 <span class="keywordtype">int</span> len;
<a name="l00387"></a>00387
<a name="l00388"></a>00388 <span class="comment">// TODO</span>
<a name="l00389"></a>00389 <span class="comment">// Currently, this never resolves IPv6 (need gethostbyname2, etc.)</span>
<a name="l00390"></a>00390 <span class="preprocessor"># ifdef AF_INET6</span>
<a name="l00391"></a>00391 <span class="preprocessor"></span> <span class="keywordflow">if</span> (hint->ai_family == AF_INET6)
<a name="l00392"></a>00392 {
<a name="l00393"></a>00393 <span class="keywordflow">if</span> (p != NULL)
<a name="l00394"></a>00394 {
<a name="l00395"></a>00395 *result = p;
<a name="l00396"></a>00396 <span class="keywordflow">return</span> 0;
<a name="l00397"></a>00397 }
<a name="l00398"></a>00398 <span class="keywordflow">return</span> EAI_FAIL;
<a name="l00399"></a>00399 }
<a name="l00400"></a>00400 <span class="preprocessor"># endif</span>
<a name="l00401"></a>00401 <span class="preprocessor"></span>
<a name="l00402"></a>00402 q = (addrinfo*)malloc(<span class="keyword">sizeof</span>(*q));
<a name="l00403"></a>00403 <span class="keywordflow">if</span> (q == NULL)
<a name="l00404"></a>00404 {
<a name="l00405"></a>00405 freeaddrinfo(p);
<a name="l00406"></a>00406 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00407"></a>00407 }
<a name="l00408"></a>00408
<a name="l00409"></a>00409 h = gethostbyname(name);
<a name="l00410"></a>00410 <span class="keywordflow">if</span> (h == NULL)
<a name="l00411"></a>00411 {
<a name="l00412"></a>00412 <span class="keywordflow">if</span> (p != NULL)
<a name="l00413"></a>00413 {
<a name="l00414"></a>00414 <span class="comment">// There already is a suitable result</span>
<a name="l00415"></a>00415 *result = p;
<a name="l00416"></a>00416 <span class="keywordflow">return</span> 0;
<a name="l00417"></a>00417 }
<a name="l00418"></a>00418
<a name="l00419"></a>00419 <span class="keywordflow">switch</span> (h_errno)
<a name="l00420"></a>00420 {
<a name="l00421"></a>00421 <span class="keywordflow">case</span> HOST_NOT_FOUND:
<a name="l00422"></a>00422 <span class="keywordflow">return</span> EAI_NONAME;
<a name="l00423"></a>00423 <span class="keywordflow">case</span> TRY_AGAIN:
<a name="l00424"></a>00424 <span class="keywordflow">return</span> EAI_AGAIN;
<a name="l00425"></a>00425 <span class="keywordflow">case</span> NO_RECOVERY:
<a name="l00426"></a>00426 <span class="keywordflow">return</span> EAI_FAIL;
<a name="l00427"></a>00427 <span class="keywordflow">case</span> NO_ADDRESS:
<a name="l00428"></a>00428 <span class="keywordflow">return</span> EAI_NODATA;
<a name="l00429"></a>00429 <span class="keywordflow">default</span>:
<a name="l00430"></a>00430 <span class="comment">// EH!?</span>
<a name="l00431"></a>00431 <span class="keywordflow">return</span> EAI_FAIL;
<a name="l00432"></a>00432 }
<a name="l00433"></a>00433 }
<a name="l00434"></a>00434
<a name="l00435"></a>00435 <span class="comment">// convert the hostent to addrinfo</span>
<a name="l00436"></a>00436 <span class="keywordflow">if</span> (h->h_addrtype == AF_INET && (hint->ai_family == AF_INET || hint->ai_family == AF_UNSPEC))
<a name="l00437"></a>00437 len = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>sockaddr_in);
<a name="l00438"></a>00438 <span class="preprocessor"># ifdef AF_INET6</span>
<a name="l00439"></a>00439 <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (h->h_addrtype == AF_INET6 && (hint->ai_family == AF_INET6 ||
<a name="l00440"></a>00440 hint->ai_family == AF_UNSPEC))
<a name="l00441"></a>00441 len = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>sockaddr_in6);
<a name="l00442"></a>00442 <span class="preprocessor"># endif</span>
<a name="l00443"></a>00443 <span class="preprocessor"></span> <span class="keywordflow">else</span>
<a name="l00444"></a>00444 {
<a name="l00445"></a>00445 <span class="comment">// We don't know what to do with these addresses</span>
<a name="l00446"></a>00446 <span class="comment">// Or gethostbyname returned information we don't want</span>
<a name="l00447"></a>00447 <span class="keywordflow">if</span> (p != NULL)
<a name="l00448"></a>00448 {
<a name="l00449"></a>00449 *result = p;
<a name="l00450"></a>00450 <span class="keywordflow">return</span> 0;
<a name="l00451"></a>00451 }
<a name="l00452"></a>00452 <span class="keywordflow">return</span> EAI_NODATA;
<a name="l00453"></a>00453 }
<a name="l00454"></a>00454
<a name="l00455"></a>00455 q->ai_flags = 0;
<a name="l00456"></a>00456 q->ai_family = h->h_addrtype;
<a name="l00457"></a>00457 q->ai_socktype = hint->ai_socktype;
<a name="l00458"></a>00458 q->ai_protocol = protonum;
<a name="l00459"></a>00459 q->ai_addrlen = len;
<a name="l00460"></a>00460
<a name="l00461"></a>00461 q->ai_addr = (sockaddr*)malloc(len);
<a name="l00462"></a>00462 <span class="keywordflow">if</span> (q->ai_addr == NULL)
<a name="l00463"></a>00463 {
<a name="l00464"></a>00464 free(q);
<a name="l00465"></a>00465 freeaddrinfo(p);
<a name="l00466"></a>00466 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00467"></a>00467 }
<a name="l00468"></a>00468 <span class="keywordflow">if</span> (h->h_addrtype == AF_INET)
<a name="l00469"></a>00469 {
<a name="l00470"></a>00470 <span class="keyword">struct </span>sockaddr_in *sin = (sockaddr_in*)q->ai_addr;
<a name="l00471"></a>00471 sin->sin_family = AF_INET;
<a name="l00472"></a>00472 # ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
<a name="l00473"></a>00473 sin->sin_len = <span class="keyword">sizeof</span>(*sin);
<a name="l00474"></a>00474 <span class="preprocessor"># endif</span>
<a name="l00475"></a>00475 <span class="preprocessor"></span> sin->sin_port = portnum;
<a name="l00476"></a>00476 memcpy(&sin->sin_addr, h->h_addr, h->h_length);
<a name="l00477"></a>00477 }
<a name="l00478"></a>00478 <span class="preprocessor"># ifdef AF_INET6</span>
<a name="l00479"></a>00479 <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (h->h_addrtype == AF_INET6)
<a name="l00480"></a>00480 {
<a name="l00481"></a>00481 <span class="keyword">struct </span>sockaddr_in6 *sin6 = (sockaddr_in6*)q->ai_addr;
<a name="l00482"></a>00482 sin6->sin6_family = AF_INET6;
<a name="l00483"></a>00483 # ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
<a name="l00484"></a>00484 sin6->sin6_len = <span class="keyword">sizeof</span>(*sin6);
<a name="l00485"></a>00485 <span class="preprocessor"># endif</span>
<a name="l00486"></a>00486 <span class="preprocessor"></span> sin6->sin6_port = portnum;
<a name="l00487"></a>00487 sin6->sin6_flowinfo = 0;
<a name="l00488"></a>00488 memcpy(&sin6->sin6_addr, h->h_addr, h->h_length);
<a name="l00489"></a>00489 sin6->sin6_scope_id = 0;
<a name="l00490"></a>00490 }
<a name="l00491"></a>00491 <span class="preprocessor"># endif</span>
<a name="l00492"></a>00492 <span class="preprocessor"></span>
<a name="l00493"></a>00493 <span class="keywordflow">if</span> (hint->ai_flags & AI_CANONNAME)
<a name="l00494"></a>00494 q->ai_canonname = strdup(h->h_name);
<a name="l00495"></a>00495 <span class="keywordflow">else</span>
<a name="l00496"></a>00496 q->ai_canonname = NULL;
<a name="l00497"></a>00497
<a name="l00498"></a>00498 q->ai_next = p;
<a name="l00499"></a>00499 p = q;
<a name="l00500"></a>00500
<a name="l00501"></a>00501 <span class="comment">// cycle through the rest of the hosts;</span>
<a name="l00502"></a>00502 <span class="keywordflow">for</span> (psa = (sockaddr**)h->h_addr_list + 1; *psa; psa++)
<a name="l00503"></a>00503 {
<a name="l00504"></a>00504 q = (addrinfo*)malloc(<span class="keyword">sizeof</span>(*q));
<a name="l00505"></a>00505 <span class="keywordflow">if</span> (q == NULL)
<a name="l00506"></a>00506 {
<a name="l00507"></a>00507 freeaddrinfo(p);
<a name="l00508"></a>00508 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00509"></a>00509 }
<a name="l00510"></a>00510 memcpy(q, p, <span class="keyword">sizeof</span>(*q));
<a name="l00511"></a>00511
<a name="l00512"></a>00512 q->ai_addr = (sockaddr*)malloc(h->h_length);
<a name="l00513"></a>00513 <span class="keywordflow">if</span> (q->ai_addr == NULL)
<a name="l00514"></a>00514 {
<a name="l00515"></a>00515 freeaddrinfo(p);
<a name="l00516"></a>00516 free(q);
<a name="l00517"></a>00517 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00518"></a>00518 }
<a name="l00519"></a>00519 <span class="keywordflow">if</span> (h->h_addrtype == AF_INET)
<a name="l00520"></a>00520 {
<a name="l00521"></a>00521 <span class="keyword">struct </span>sockaddr_in *sin = (sockaddr_in*)q->ai_addr;
<a name="l00522"></a>00522 sin->sin_family = AF_INET;
<a name="l00523"></a>00523 # ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
<a name="l00524"></a>00524 sin->sin_len = <span class="keyword">sizeof</span>(*sin);
<a name="l00525"></a>00525 <span class="preprocessor"># endif</span>
<a name="l00526"></a>00526 <span class="preprocessor"></span> sin->sin_port = portnum;
<a name="l00527"></a>00527 memcpy(&sin->sin_addr, *psa, h->h_length);
<a name="l00528"></a>00528 }
<a name="l00529"></a>00529 <span class="preprocessor"># ifdef AF_INET6</span>
<a name="l00530"></a>00530 <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (h->h_addrtype == AF_INET6)
<a name="l00531"></a>00531 {
<a name="l00532"></a>00532 <span class="keyword">struct </span>sockaddr_in6 *sin6 = (sockaddr_in6*)q->ai_addr;
<a name="l00533"></a>00533 sin6->sin6_family = AF_INET6;
<a name="l00534"></a>00534 # ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
<a name="l00535"></a>00535 sin6->sin6_len = <span class="keyword">sizeof</span>(*sin6);
<a name="l00536"></a>00536 <span class="preprocessor"># endif</span>
<a name="l00537"></a>00537 <span class="preprocessor"></span> sin6->sin6_port = portnum;
<a name="l00538"></a>00538 sin6->sin6_flowinfo = 0;
<a name="l00539"></a>00539 memcpy(&sin6->sin6_addr, *psa, h->h_length);
<a name="l00540"></a>00540 sin6->sin6_scope_id = 0;
<a name="l00541"></a>00541 }
<a name="l00542"></a>00542 <span class="preprocessor"># endif</span>
<a name="l00543"></a>00543 <span class="preprocessor"></span>
<a name="l00544"></a>00544 <span class="keywordflow">if</span> (q->ai_canonname != NULL)
<a name="l00545"></a>00545 q->ai_canonname = strdup(q->ai_canonname);
<a name="l00546"></a>00546
<a name="l00547"></a>00547 q->ai_next = p;
<a name="l00548"></a>00548 p = q;
<a name="l00549"></a>00549 }
<a name="l00550"></a>00550
<a name="l00551"></a>00551 *result = p;
<a name="l00552"></a>00552 <span class="keywordflow">return</span> 0; <span class="comment">// Whew! Success!</span>
<a name="l00553"></a>00553 }
<a name="l00554"></a>00554
<a name="l00555"></a>00555 <span class="keyword">static</span> <span class="keywordtype">int</span> make_inet(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> portnum, <span class="keywordtype">int</span> protonum, <span class="keyword">struct</span> addrinfo *p,
<a name="l00556"></a>00556 <span class="keyword">const</span> <span class="keyword">struct</span> addrinfo *hint, <span class="keyword">struct</span> addrinfo** result)
<a name="l00557"></a>00557 {
<a name="l00558"></a>00558 <span class="keyword">struct </span>addrinfo *q;
<a name="l00559"></a>00559
<a name="l00560"></a>00560 <span class="keywordflow">do</span>
<a name="l00561"></a>00561 {
<a name="l00562"></a>00562 <span class="comment">// This 'do' is here just so that we can 'break' out of it</span>
<a name="l00563"></a>00563
<a name="l00564"></a>00564 <span class="keywordflow">if</span> (name != NULL)
<a name="l00565"></a>00565 {
<a name="l00566"></a>00566 <span class="comment">// first, try to use inet_pton before resolving</span>
<a name="l00567"></a>00567 <span class="comment">// it will catch IP addresses given without having to go to lookup</span>
<a name="l00568"></a>00568 <span class="keyword">struct </span>sockaddr_in *sin;
<a name="l00569"></a>00569 <span class="keyword">struct </span>in_addr in;
<a name="l00570"></a>00570 <span class="preprocessor"># ifdef AF_INET6</span>
<a name="l00571"></a>00571 <span class="preprocessor"></span> <span class="keyword">struct </span>sockaddr_in6 *sin6;
<a name="l00572"></a>00572 <span class="keyword">struct </span>in6_addr in6;
<a name="l00573"></a>00573
<a name="l00574"></a>00574 <span class="keywordflow">if</span> (hint->ai_family == AF_INET6 || (hint->ai_family == AF_UNSPEC &&
<a name="l00575"></a>00575 strchr(name, <span class="charliteral">':'</span>) != NULL))
<a name="l00576"></a>00576 {
<a name="l00577"></a>00577 <span class="comment">// yes, this is IPv6</span>
<a name="l00578"></a>00578 <span class="keywordflow">if</span> (inet_pton(AF_INET6, name, &in6) != 1)
<a name="l00579"></a>00579 {
<a name="l00580"></a>00580 <span class="keywordflow">if</span> (hint->ai_flags & AI_NUMERICHOST)
<a name="l00581"></a>00581 {
<a name="l00582"></a>00582 freeaddrinfo(p);
<a name="l00583"></a>00583 <span class="keywordflow">return</span> EAI_FAIL;
<a name="l00584"></a>00584 }
<a name="l00585"></a>00585 <span class="keywordflow">break</span>; <span class="comment">// not a numeric host</span>
<a name="l00586"></a>00586 }
<a name="l00587"></a>00587
<a name="l00588"></a>00588 sin6 = (sockaddr_in6*)malloc(<span class="keyword">sizeof</span>(*sin6));
<a name="l00589"></a>00589 <span class="keywordflow">if</span> (sin6 == NULL)
<a name="l00590"></a>00590 {
<a name="l00591"></a>00591 freeaddrinfo(p);
<a name="l00592"></a>00592 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00593"></a>00593 }
<a name="l00594"></a>00594 memcpy(&sin6->sin6_addr, &in6, <span class="keyword">sizeof</span>(in6));
<a name="l00595"></a>00595
<a name="l00596"></a>00596 <span class="keywordflow">if</span> (strchr(name, <span class="charliteral">'%'</span>) != NULL)
<a name="l00597"></a>00597 {
<a name="l00598"></a>00598 errno = 0;
<a name="l00599"></a>00599 sin6->sin6_scope_id = strtoul(strchr(name, <span class="charliteral">'%'</span>) + 1, NULL, 10);
<a name="l00600"></a>00600 <span class="keywordflow">if</span> (errno != 0)
<a name="l00601"></a>00601 sin6->sin6_scope_id = 0; <span class="comment">// no interface</span>
<a name="l00602"></a>00602 }
<a name="l00603"></a>00603
<a name="l00604"></a>00604 q = (addrinfo*)malloc(<span class="keyword">sizeof</span>(*q));
<a name="l00605"></a>00605 <span class="keywordflow">if</span> (q == NULL)
<a name="l00606"></a>00606 {
<a name="l00607"></a>00607 freeaddrinfo(p);
<a name="l00608"></a>00608 free(sin6);
<a name="l00609"></a>00609 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00610"></a>00610 }
<a name="l00611"></a>00611
<a name="l00612"></a>00612 sin6->sin6_family = AF_INET6;
<a name="l00613"></a>00613 <span class="preprocessor"># ifdef HAVE_STRUCT_SOCKADDR_SA_LEN</span>
<a name="l00614"></a>00614 <span class="preprocessor"></span> sin6->sin6_len = <span class="keyword">sizeof</span>(*sin6);
<a name="l00615"></a>00615 <span class="preprocessor"># endif</span>
<a name="l00616"></a>00616 <span class="preprocessor"></span> sin6->sin6_port = portnum;
<a name="l00617"></a>00617 sin6->sin6_flowinfo = 0;
<a name="l00618"></a>00618
<a name="l00619"></a>00619 q->ai_flags = 0;
<a name="l00620"></a>00620 q->ai_family = AF_INET6;
<a name="l00621"></a>00621 q->ai_socktype = hint->ai_socktype;
<a name="l00622"></a>00622 q->ai_protocol = protonum;
<a name="l00623"></a>00623 q->ai_addrlen = <span class="keyword">sizeof</span>(*sin6);
<a name="l00624"></a>00624 q->ai_canonname = NULL;
<a name="l00625"></a>00625 q->ai_addr = (sockaddr*)sin6;
<a name="l00626"></a>00626 q->ai_next = p;
<a name="l00627"></a>00627
<a name="l00628"></a>00628 *result = q;
<a name="l00629"></a>00629 <span class="keywordflow">return</span> 0; <span class="comment">// success!</span>
<a name="l00630"></a>00630 }
<a name="l00631"></a>00631 <span class="preprocessor"># endif // AF_INET6</span>
<a name="l00632"></a>00632 <span class="preprocessor"></span>
<a name="l00633"></a>00633 <span class="keywordflow">if</span> (hint->ai_family == AF_INET || hint->ai_family == AF_UNSPEC)
<a name="l00634"></a>00634 {
<a name="l00635"></a>00635 <span class="comment">// This has to be IPv4</span>
<a name="l00636"></a>00636 <span class="keywordflow">if</span> (inet_pton(AF_INET, name, &in) != 1)
<a name="l00637"></a>00637 {
<a name="l00638"></a>00638 <span class="keywordflow">if</span> (hint->ai_flags & AI_NUMERICHOST)
<a name="l00639"></a>00639 {
<a name="l00640"></a>00640 freeaddrinfo(p);
<a name="l00641"></a>00641 <span class="keywordflow">return</span> EAI_FAIL; <span class="comment">// invalid, I guess</span>
<a name="l00642"></a>00642 }
<a name="l00643"></a>00643 <span class="keywordflow">break</span>; <span class="comment">// not a numeric host, do lookup</span>
<a name="l00644"></a>00644 }
<a name="l00645"></a>00645
<a name="l00646"></a>00646 sin = (sockaddr_in*)malloc(<span class="keyword">sizeof</span>(*sin));
<a name="l00647"></a>00647 <span class="keywordflow">if</span> (sin == NULL)
<a name="l00648"></a>00648 {
<a name="l00649"></a>00649 freeaddrinfo(p);
<a name="l00650"></a>00650 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00651"></a>00651 }
<a name="l00652"></a>00652
<a name="l00653"></a>00653 q = (addrinfo*)malloc(<span class="keyword">sizeof</span>(*q));
<a name="l00654"></a>00654 <span class="keywordflow">if</span> (q == NULL)
<a name="l00655"></a>00655 {
<a name="l00656"></a>00656 freeaddrinfo(p);
<a name="l00657"></a>00657 free(sin);
<a name="l00658"></a>00658 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00659"></a>00659 }
<a name="l00660"></a>00660
<a name="l00661"></a>00661 sin->sin_family = AF_INET;
<a name="l00662"></a>00662 <span class="preprocessor"># ifdef HAVE_STRUCT_SOCKADDR_SA_LEN</span>
<a name="l00663"></a>00663 <span class="preprocessor"></span> sin->sin_len = <span class="keyword">sizeof</span>(*sin);
<a name="l00664"></a>00664 <span class="preprocessor"># endif</span>
<a name="l00665"></a>00665 <span class="preprocessor"></span> sin->sin_port = portnum;
<a name="l00666"></a>00666 sin->sin_addr = in;
<a name="l00667"></a>00667
<a name="l00668"></a>00668 q->ai_flags = 0;
<a name="l00669"></a>00669 q->ai_family = AF_INET;
<a name="l00670"></a>00670 q->ai_socktype = hint->ai_socktype;
<a name="l00671"></a>00671 q->ai_protocol = protonum;
<a name="l00672"></a>00672 q->ai_addrlen = <span class="keyword">sizeof</span>(*sin);
<a name="l00673"></a>00673 q->ai_canonname = NULL;
<a name="l00674"></a>00674 q->ai_addr = (sockaddr*)sin;
<a name="l00675"></a>00675 q->ai_next = p;
<a name="l00676"></a>00676 *result = q;
<a name="l00677"></a>00677 <span class="keywordflow">return</span> 0;
<a name="l00678"></a>00678 }
<a name="l00679"></a>00679
<a name="l00680"></a>00680 <span class="comment">// Eh, what!?</span>
<a name="l00681"></a>00681 <span class="comment">// One of the two above has to have matched</span>
<a name="l00682"></a>00682 <a class="code" href="group__kdebug.html#ga9bfa740383bdb4858fbad6a11222200e">kdError</a>() << <span class="stringliteral">"I wasn't supposed to get here!"</span>;
<a name="l00683"></a>00683 }
<a name="l00684"></a>00684 } <span class="keywordflow">while</span> (<span class="keyword">false</span>);
<a name="l00685"></a>00685
<a name="l00686"></a>00686 <span class="comment">// This means localhost</span>
<a name="l00687"></a>00687 <span class="keywordflow">if</span> (name == NULL)
<a name="l00688"></a>00688 {
<a name="l00689"></a>00689 <span class="keyword">struct </span>sockaddr_in *sin = (sockaddr_in*)malloc(<span class="keyword">sizeof</span>(*sin));
<a name="l00690"></a>00690 <span class="preprocessor"># ifdef AF_INET6</span>
<a name="l00691"></a>00691 <span class="preprocessor"></span> <span class="keyword">struct </span>sockaddr_in6 *sin6;
<a name="l00692"></a>00692 <span class="preprocessor"># endif</span>
<a name="l00693"></a>00693 <span class="preprocessor"></span>
<a name="l00694"></a>00694 <span class="keywordflow">if</span> (hint->ai_family == AF_INET || hint->ai_family == AF_UNSPEC)
<a name="l00695"></a>00695 {
<a name="l00696"></a>00696 <span class="keywordflow">if</span> (sin == NULL)
<a name="l00697"></a>00697 {
<a name="l00698"></a>00698 free(sin);
<a name="l00699"></a>00699 freeaddrinfo(p);
<a name="l00700"></a>00700 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00701"></a>00701 }
<a name="l00702"></a>00702
<a name="l00703"></a>00703 <span class="comment">// Do IPv4 first</span>
<a name="l00704"></a>00704 q = (addrinfo*)malloc(<span class="keyword">sizeof</span>(*q));
<a name="l00705"></a>00705 <span class="keywordflow">if</span> (q == NULL)
<a name="l00706"></a>00706 {
<a name="l00707"></a>00707 free(sin);
<a name="l00708"></a>00708 freeaddrinfo(p);
<a name="l00709"></a>00709 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00710"></a>00710 }
<a name="l00711"></a>00711
<a name="l00712"></a>00712 sin->sin_family = AF_INET;
<a name="l00713"></a>00713 <span class="preprocessor"># ifdef HAVE_STRUCT_SOCKADDR_SA_LEN</span>
<a name="l00714"></a>00714 <span class="preprocessor"></span> sin->sin_len = <span class="keyword">sizeof</span>(*sin);
<a name="l00715"></a>00715 <span class="preprocessor"># endif</span>
<a name="l00716"></a>00716 <span class="preprocessor"></span> sin->sin_port = portnum;
<a name="l00717"></a>00717 <span class="keywordflow">if</span> (hint->ai_flags & AI_PASSIVE)
<a name="l00718"></a>00718 *(Q_UINT32*)&sin->sin_addr = INADDR_ANY;
<a name="l00719"></a>00719 <span class="keywordflow">else</span>
<a name="l00720"></a>00720 *(Q_UINT32*)&sin->sin_addr = htonl(INADDR_LOOPBACK);
<a name="l00721"></a>00721 q->ai_flags = 0;
<a name="l00722"></a>00722 q->ai_family = AF_INET;
<a name="l00723"></a>00723 q->ai_socktype = hint->ai_socktype;
<a name="l00724"></a>00724 q->ai_protocol = protonum;
<a name="l00725"></a>00725 q->ai_addrlen = <span class="keyword">sizeof</span>(*sin);
<a name="l00726"></a>00726 q->ai_canonname = NULL;
<a name="l00727"></a>00727 q->ai_addr = (sockaddr*)sin;
<a name="l00728"></a>00728 q->ai_next = p;
<a name="l00729"></a>00729 p = q;
<a name="l00730"></a>00730 }
<a name="l00731"></a>00731
<a name="l00732"></a>00732 <span class="preprocessor"># ifdef AF_INET6</span>
<a name="l00733"></a>00733 <span class="preprocessor"></span> <span class="comment">// Try now IPv6</span>
<a name="l00734"></a>00734
<a name="l00735"></a>00735 <span class="keywordflow">if</span> (hint->ai_family == AF_INET6 || hint->ai_family == AF_UNSPEC)
<a name="l00736"></a>00736 {
<a name="l00737"></a>00737 sin6 = (sockaddr_in6*)malloc(<span class="keyword">sizeof</span>(*sin6));
<a name="l00738"></a>00738 q = (addrinfo*)malloc(<span class="keyword">sizeof</span>(*q));
<a name="l00739"></a>00739 <span class="keywordflow">if</span> (q == NULL || sin6 == NULL)
<a name="l00740"></a>00740 {
<a name="l00741"></a>00741 free(sin6);
<a name="l00742"></a>00742 free(q);
<a name="l00743"></a>00743 freeaddrinfo(p);
<a name="l00744"></a>00744 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00745"></a>00745 }
<a name="l00746"></a>00746
<a name="l00747"></a>00747 sin6->sin6_family = AF_INET6;
<a name="l00748"></a>00748 <span class="preprocessor"># ifdef HAVE_STRUCT_SOCKADDR_SA_LEN</span>
<a name="l00749"></a>00749 <span class="preprocessor"></span> sin6->sin6_len = <span class="keyword">sizeof</span>(*sin6);
<a name="l00750"></a>00750 <span class="preprocessor"># endif</span>
<a name="l00751"></a>00751 <span class="preprocessor"></span> sin6->sin6_port = portnum;
<a name="l00752"></a>00752 sin6->sin6_flowinfo = 0;
<a name="l00753"></a>00753 sin6->sin6_scope_id = 0;
<a name="l00754"></a>00754
<a name="l00755"></a>00755 <span class="comment">// We don't want to use in6addr_loopback and in6addr_any</span>
<a name="l00756"></a>00756 memset(&sin6->sin6_addr, 0, <span class="keyword">sizeof</span>(sin6->sin6_addr));
<a name="l00757"></a>00757 <span class="keywordflow">if</span> ((hint->ai_flags & AI_PASSIVE) == 0)
<a name="l00758"></a>00758 ((<span class="keywordtype">char</span>*)&sin6->sin6_addr)[15] = 1;
<a name="l00759"></a>00759
<a name="l00760"></a>00760 q->ai_flags = 0;
<a name="l00761"></a>00761 q->ai_family = AF_INET6;
<a name="l00762"></a>00762 q->ai_socktype = hint->ai_socktype;
<a name="l00763"></a>00763 q->ai_protocol = protonum;
<a name="l00764"></a>00764 q->ai_addrlen = <span class="keyword">sizeof</span>(*sin6);
<a name="l00765"></a>00765 q->ai_canonname = NULL;
<a name="l00766"></a>00766 q->ai_addr = (sockaddr*)sin6;
<a name="l00767"></a>00767 q->ai_next = p;
<a name="l00768"></a>00768 p = q;
<a name="l00769"></a>00769 }
<a name="l00770"></a>00770
<a name="l00771"></a>00771 <span class="preprocessor"># endif // AF_INET6</span>
<a name="l00772"></a>00772 <span class="preprocessor"></span>
<a name="l00773"></a>00773 *result = p;
<a name="l00774"></a>00774 <span class="keywordflow">return</span> 0; <span class="comment">// success!</span>
<a name="l00775"></a>00775 }
<a name="l00776"></a>00776
<a name="l00777"></a>00777 <span class="keywordflow">return</span> inet_lookup(name, portnum, protonum, p, hint, result);
<a name="l00778"></a>00778 }
<a name="l00779"></a>00779
<a name="l00780"></a>00780
<a name="l00781"></a>00781 <span class="keywordtype">int</span> getaddrinfo(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> <span class="keywordtype">char</span> *serv,
<a name="l00782"></a>00782 <span class="keyword">const</span> <span class="keyword">struct</span> addrinfo* hint,
<a name="l00783"></a>00783 <span class="keyword">struct</span> addrinfo** result)
<a name="l00784"></a>00784 {
<a name="l00785"></a>00785 <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> portnum; <span class="comment">// remember to store in network byte order</span>
<a name="l00786"></a>00786 <span class="keywordtype">int</span> protonum = IPPROTO_TCP;
<a name="l00787"></a>00787 <span class="keyword">const</span> <span class="keywordtype">char</span> *proto = <span class="stringliteral">"tcp"</span>;
<a name="l00788"></a>00788 <span class="keyword">struct </span>addrinfo *p = NULL;
<a name="l00789"></a>00789
<a name="l00790"></a>00790 <span class="comment">// Sanity checks:</span>
<a name="l00791"></a>00791 <span class="keywordflow">if</span> (hint == NULL || result == NULL)
<a name="l00792"></a>00792 <span class="keywordflow">return</span> EAI_BADFLAGS;
<a name="l00793"></a>00793 <span class="keywordflow">if</span> (hint->ai_family != AF_UNSPEC && hint->ai_family != AF_UNIX &&
<a name="l00794"></a>00794 hint->ai_family != AF_INET
<a name="l00795"></a>00795 # ifdef AF_INET6
<a name="l00796"></a>00796 && hint->ai_family != AF_INET6
<a name="l00797"></a>00797 # endif
<a name="l00798"></a>00798 )
<a name="l00799"></a>00799 <span class="keywordflow">return</span> EAI_FAMILY;
<a name="l00800"></a>00800 <span class="keywordflow">if</span> (hint->ai_socktype != 0 && hint->ai_socktype != SOCK_STREAM &&
<a name="l00801"></a>00801 hint->ai_socktype != SOCK_DGRAM)
<a name="l00802"></a>00802 <span class="keywordflow">return</span> EAI_SOCKTYPE;
<a name="l00803"></a>00803
<a name="l00804"></a>00804 <span class="comment">// Treat hostname of "*" as NULL, which means localhost</span>
<a name="l00805"></a>00805 <span class="keywordflow">if</span> (name != NULL && ((*name == <span class="charliteral">'*'</span> && name[1] == <span class="charliteral">'\0'</span>) || *name == <span class="charliteral">'\0'</span>))
<a name="l00806"></a>00806 name = NULL;
<a name="l00807"></a>00807 <span class="comment">// Treat service of "*" as NULL, which I guess means no port (0)</span>
<a name="l00808"></a>00808 <span class="keywordflow">if</span> (serv != NULL && ((*serv == <span class="charliteral">'*'</span> && serv[1] == <span class="charliteral">'\0'</span>) || *serv == <span class="charliteral">'\0'</span>))
<a name="l00809"></a>00809 serv = NULL;
<a name="l00810"></a>00810
<a name="l00811"></a>00811 <span class="keywordflow">if</span> (name == NULL && serv == NULL) <span class="comment">// what the hell do you want?</span>
<a name="l00812"></a>00812 <span class="keywordflow">return</span> EAI_NONAME;
<a name="l00813"></a>00813
<a name="l00814"></a>00814 <span class="comment">// This is just to make it easier</span>
<a name="l00815"></a>00815 <span class="keywordflow">if</span> (name != NULL && strcmp(name, <span class="stringliteral">"localhost"</span>) == 0)
<a name="l00816"></a>00816 name = NULL;
<a name="l00817"></a>00817
<a name="l00818"></a>00818 <span class="comment">// First, check for a Unix socket</span>
<a name="l00819"></a>00819 <span class="comment">// family must be either AF_UNIX or AF_UNSPEC</span>
<a name="l00820"></a>00820 <span class="comment">// either of name or serv must be set, the other must be NULL or empty</span>
<a name="l00821"></a>00821 <span class="keywordflow">if</span> (hint->ai_family == AF_UNIX || hint->ai_family == AF_UNSPEC)
<a name="l00822"></a>00822 {
<a name="l00823"></a>00823 <span class="keywordflow">if</span> (name != NULL && serv != NULL)
<a name="l00824"></a>00824 {
<a name="l00825"></a>00825 <span class="comment">// This is not allowed</span>
<a name="l00826"></a>00826 <span class="keywordflow">if</span> (hint->ai_family == AF_UNIX)
<a name="l00827"></a>00827 <span class="keywordflow">return</span> EAI_BADFLAGS;
<a name="l00828"></a>00828 }
<a name="l00829"></a>00829 <span class="keywordflow">else</span>
<a name="l00830"></a>00830 {
<a name="l00831"></a>00831 p = make_unix(name, serv);
<a name="l00832"></a>00832 <span class="keywordflow">if</span> (p == NULL)
<a name="l00833"></a>00833 <span class="keywordflow">return</span> EAI_MEMORY;
<a name="l00834"></a>00834
<a name="l00835"></a>00835 p->ai_socktype = hint->ai_socktype;
<a name="l00836"></a>00836 <span class="comment">// If the name/service started with a slash, then this *IS*</span>
<a name="l00837"></a>00837 <span class="comment">// only a Unix socket. Return.</span>
<a name="l00838"></a>00838 <span class="keywordflow">if</span> (hint->ai_family == AF_UNIX || ((name != NULL && *name == <span class="charliteral">'/'</span>) ||
<a name="l00839"></a>00839 (serv != NULL && *serv == <span class="charliteral">'/'</span>)))
<a name="l00840"></a>00840 {
<a name="l00841"></a>00841 *result = p;
<a name="l00842"></a>00842 <span class="keywordflow">return</span> 0; <span class="comment">// successful lookup</span>
<a name="l00843"></a>00843 }
<a name="l00844"></a>00844 }
<a name="l00845"></a>00845 }
<a name="l00846"></a>00846
<a name="l00847"></a>00847 <span class="comment">// Lookup the service name, if required</span>
<a name="l00848"></a>00848 <span class="keywordflow">if</span> (serv != NULL)
<a name="l00849"></a>00849 {
<a name="l00850"></a>00850 <span class="keywordtype">char</span> *tail;
<a name="l00851"></a>00851 <span class="keyword">struct </span>servent *sent;
<a name="l00852"></a>00852
<a name="l00853"></a>00853 portnum = htons((<span class="keywordtype">unsigned</span>)strtoul(serv, &tail, 10));
<a name="l00854"></a>00854 <span class="keywordflow">if</span> (*tail != <span class="charliteral">'\0'</span>)
<a name="l00855"></a>00855 {
<a name="l00856"></a>00856 <span class="comment">// not a number. We have to do the lookup</span>
<a name="l00857"></a>00857 <span class="keywordflow">if</span> (hint->ai_socktype == SOCK_DGRAM)
<a name="l00858"></a>00858 {
<a name="l00859"></a>00859 proto = <span class="stringliteral">"udp"</span>;
<a name="l00860"></a>00860 protonum = IPPROTO_UDP;
<a name="l00861"></a>00861 }
<a name="l00862"></a>00862
<a name="l00863"></a>00863 sent = getservbyname(serv, proto);
<a name="l00864"></a>00864 <span class="keywordflow">if</span> (sent == NULL) <span class="comment">// no service?</span>
<a name="l00865"></a>00865 {
<a name="l00866"></a>00866 <span class="keywordflow">if</span> (p == NULL)
<a name="l00867"></a>00867 <span class="keywordflow">return</span> EAI_NONAME;
<a name="l00868"></a>00868 <span class="keywordflow">else</span>
<a name="l00869"></a>00869 <span class="keywordflow">return</span> 0; <span class="comment">// a Unix socket available</span>
<a name="l00870"></a>00870 }
<a name="l00871"></a>00871
<a name="l00872"></a>00872 portnum = sent->s_port;
<a name="l00873"></a>00873 }
<a name="l00874"></a>00874 }
<a name="l00875"></a>00875 <span class="keywordflow">else</span>
<a name="l00876"></a>00876 portnum = 0; <span class="comment">// no port number</span>
<a name="l00877"></a>00877
<a name="l00878"></a>00878 <span class="keywordflow">return</span> make_inet(name, portnum, protonum, p, hint, result);
<a name="l00879"></a>00879 }
<a name="l00880"></a>00880
<a name="l00881"></a>00881 <span class="keywordtype">void</span> freeaddrinfo(<span class="keyword">struct</span> addrinfo *p)
<a name="l00882"></a>00882 {
<a name="l00883"></a>00883 dofreeaddrinfo(p);
<a name="l00884"></a>00884 }
<a name="l00885"></a>00885
<a name="l00886"></a>00886 <span class="keywordtype">char</span> *gai_strerror(<span class="keywordtype">int</span> errorcode)
<a name="l00887"></a>00887 {
<a name="l00888"></a>00888 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> messages[] =
<a name="l00889"></a>00889 {
<a name="l00890"></a>00890 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"no error"</span>), <span class="comment">// 0</span>
<a name="l00891"></a>00891 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"address family for nodename not supported"</span>), <span class="comment">// EAI_ADDRFAMILY</span>
<a name="l00892"></a>00892 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"temporary failure in name resolution"</span>), <span class="comment">// EAI_AGAIN</span>
<a name="l00893"></a>00893 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"invalid value for 'ai_flags'"</span>), <span class="comment">// EAI_BADFLAGS</span>
<a name="l00894"></a>00894 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"non-recoverable failure in name resolution"</span>), <span class="comment">// EAI_FAIL</span>
<a name="l00895"></a>00895 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"'ai_family' not supported"</span>), <span class="comment">// EAI_FAMILY</span>
<a name="l00896"></a>00896 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"memory allocation failure"</span>), <span class="comment">// EAI_MEMORY</span>
<a name="l00897"></a>00897 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"no address associated with nodename"</span>), <span class="comment">// EAI_NODATA</span>
<a name="l00898"></a>00898 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"name or service not known"</span>), <span class="comment">// EAI_NONAME</span>
<a name="l00899"></a>00899 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"servname not supported for ai_socktype"</span>), <span class="comment">// EAI_SERVICE</span>
<a name="l00900"></a>00900 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"'ai_socktype' not supported"</span>), <span class="comment">// EAI_SOCKTYPE</span>
<a name="l00901"></a>00901 <a class="code" href="classKLocale.html#a6732233f7a886e4ff93575ab13ed161e">I18N_NOOP</a>(<span class="stringliteral">"system error"</span>) <span class="comment">// EAI_SYSTEM</span>
<a name="l00902"></a>00902 };
<a name="l00903"></a>00903
<a name="l00904"></a>00904 <span class="keywordflow">if</span> (errorcode > EAI_SYSTEM || errorcode < 0)
<a name="l00905"></a>00905 <span class="keywordflow">return</span> NULL;
<a name="l00906"></a>00906
<a name="l00907"></a>00907 <span class="keyword">static</span> <span class="keywordtype">char</span> buffer[200];
<a name="l00908"></a>00908 strcpy(buffer, <a class="code" href="classKLocale.html#a0eca0239d7b23eb40006d82d6210aa69">i18n</a>(messages[errorcode]).local8Bit());
<a name="l00909"></a>00909 <span class="keywordflow">return</span> buffer;
<a name="l00910"></a>00910 }
<a name="l00911"></a>00911
<a name="l00912"></a>00912 <span class="keyword">static</span> <span class="keywordtype">void</span> findport(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> port, <span class="keywordtype">char</span> *serv, <span class="keywordtype">size_t</span> servlen, <span class="keywordtype">int</span> flags)
<a name="l00913"></a>00913 {
<a name="l00914"></a>00914 <span class="keywordflow">if</span> (serv == NULL)
<a name="l00915"></a>00915 <span class="keywordflow">return</span>;
<a name="l00916"></a>00916
<a name="l00917"></a>00917 <span class="keywordflow">if</span> ((flags & NI_NUMERICSERV) == 0)
<a name="l00918"></a>00918 {
<a name="l00919"></a>00919 <span class="keyword">struct </span>servent *sent;
<a name="l00920"></a>00920 sent = getservbyport(ntohs(port), flags & NI_DGRAM ? <span class="stringliteral">"udp"</span> : <span class="stringliteral">"tcp"</span>);
<a name="l00921"></a>00921 <span class="keywordflow">if</span> (sent != NULL && servlen > strlen(sent->s_name))
<a name="l00922"></a>00922 {
<a name="l00923"></a>00923 strcpy(serv, sent->s_name);
<a name="l00924"></a>00924 <span class="keywordflow">return</span>;
<a name="l00925"></a>00925 }
<a name="l00926"></a>00926 }
<a name="l00927"></a>00927
<a name="l00928"></a>00928 snprintf(serv, servlen, <span class="stringliteral">"%u"</span>, ntohs(port));
<a name="l00929"></a>00929 }
<a name="l00930"></a>00930
<a name="l00931"></a>00931 <span class="keywordtype">int</span> getnameinfo(<span class="keyword">const</span> <span class="keyword">struct</span> sockaddr *sa, ksocklen_t salen,
<a name="l00932"></a>00932 <span class="keywordtype">char</span> *host, <span class="keywordtype">size_t</span> hostlen, <span class="keywordtype">char</span> *serv, <span class="keywordtype">size_t</span> servlen,
<a name="l00933"></a>00933 <span class="keywordtype">int</span> flags)
<a name="l00934"></a>00934 {
<a name="l00935"></a>00935 <span class="keyword">union</span>
<a name="l00936"></a>00936 {
<a name="l00937"></a>00937 <span class="keyword">const</span> sockaddr *sa;
<a name="l00938"></a>00938 <span class="keyword">const</span> sockaddr_un *_sun;
<a name="l00939"></a>00939 <span class="keyword">const</span> sockaddr_in *sin;
<a name="l00940"></a>00940 <span class="keyword">const</span> sockaddr_in6 *sin6;
<a name="l00941"></a>00941 } s;
<a name="l00942"></a>00942
<a name="l00943"></a>00943 <span class="keywordflow">if</span> ((host == NULL || hostlen == 0) && (serv == NULL || servlen == 0))
<a name="l00944"></a>00944 <span class="keywordflow">return</span> 1;
<a name="l00945"></a>00945
<a name="l00946"></a>00946 s.sa = sa;
<a name="l00947"></a>00947 <span class="keywordflow">if</span> (s.sa->sa_family == AF_UNIX)
<a name="l00948"></a>00948 {
<a name="l00949"></a>00949 <span class="keywordflow">if</span> (salen < offsetof(<span class="keyword">struct</span> sockaddr_un, sun_path) + strlen(s._sun->sun_path) + 1)
<a name="l00950"></a>00950 <span class="keywordflow">return</span> 1; <span class="comment">// invalid socket</span>
<a name="l00951"></a>00951
<a name="l00952"></a>00952 <span class="keywordflow">if</span> (servlen && serv != NULL)
<a name="l00953"></a>00953 *serv = <span class="charliteral">'\0'</span>;
<a name="l00954"></a>00954 <span class="keywordflow">if</span> (host != NULL && hostlen > strlen(s._sun->sun_path))
<a name="l00955"></a>00955 strcpy(host, s._sun->sun_path);
<a name="l00956"></a>00956
<a name="l00957"></a>00957 <span class="keywordflow">return</span> 0;
<a name="l00958"></a>00958 }
<a name="l00959"></a>00959 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (s.sa->sa_family == AF_INET)
<a name="l00960"></a>00960 {
<a name="l00961"></a>00961 <span class="keywordflow">if</span> (salen < offsetof(<span class="keyword">struct</span> sockaddr_in, sin_addr) + <span class="keyword">sizeof</span>(s.sin->sin_addr))
<a name="l00962"></a>00962 <span class="keywordflow">return</span> 1; <span class="comment">// invalid socket</span>
<a name="l00963"></a>00963
<a name="l00964"></a>00964 <span class="keywordflow">if</span> (flags & NI_NUMERICHOST)
<a name="l00965"></a>00965 inet_ntop(AF_INET, &s.sin->sin_addr, host, hostlen);
<a name="l00966"></a>00966 <span class="keywordflow">else</span>
<a name="l00967"></a>00967 {
<a name="l00968"></a>00968 <span class="comment">// have to do lookup</span>
<a name="l00969"></a>00969 <span class="keyword">struct </span>hostent *h = gethostbyaddr((<span class="keyword">const</span> <span class="keywordtype">char</span>*)&s.sin->sin_addr, <span class="keyword">sizeof</span>(s.sin->sin_addr),
<a name="l00970"></a>00970 AF_INET);
<a name="l00971"></a>00971 <span class="keywordflow">if</span> (h == NULL && flags & NI_NAMEREQD)
<a name="l00972"></a>00972 <span class="keywordflow">return</span> 1;
<a name="l00973"></a>00973 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (h == NULL)
<a name="l00974"></a>00974 inet_ntop(AF_INET, &s.sin->sin_addr, host, hostlen);
<a name="l00975"></a>00975 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (host != NULL && hostlen > strlen(h->h_name))
<a name="l00976"></a>00976 strcpy(host, h->h_name);
<a name="l00977"></a>00977 <span class="keywordflow">else</span>
<a name="l00978"></a>00978 <span class="keywordflow">return</span> 1; <span class="comment">// error</span>
<a name="l00979"></a>00979 }
<a name="l00980"></a>00980
<a name="l00981"></a>00981 findport(s.sin->sin_port, serv, servlen, flags);
<a name="l00982"></a>00982 }
<a name="l00983"></a>00983 <span class="preprocessor"># ifdef AF_INET6</span>
<a name="l00984"></a>00984 <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (s.sa->sa_family == AF_INET6)
<a name="l00985"></a>00985 {
<a name="l00986"></a>00986 <span class="keywordflow">if</span> (salen < offsetof(<span class="keyword">struct</span> sockaddr_in6, sin6_addr) + <span class="keyword">sizeof</span>(s.sin6->sin6_addr))
<a name="l00987"></a>00987 <span class="keywordflow">return</span> 1; <span class="comment">// invalid socket</span>
<a name="l00988"></a>00988
<a name="l00989"></a>00989 <span class="keywordflow">if</span> (flags & NI_NUMERICHOST)
<a name="l00990"></a>00990 inet_ntop(AF_INET6, &s.sin6->sin6_addr, host, hostlen);
<a name="l00991"></a>00991 <span class="keywordflow">else</span>
<a name="l00992"></a>00992 {
<a name="l00993"></a>00993 <span class="comment">// have to do lookup</span>
<a name="l00994"></a>00994 <span class="keyword">struct </span>hostent *h = gethostbyaddr((<span class="keyword">const</span> <span class="keywordtype">char</span>*)&s.sin->sin_addr, <span class="keyword">sizeof</span>(s.sin->sin_addr),
<a name="l00995"></a>00995 AF_INET6);
<a name="l00996"></a>00996 <span class="keywordflow">if</span> (h == NULL && flags & NI_NAMEREQD)
<a name="l00997"></a>00997 <span class="keywordflow">return</span> 1;
<a name="l00998"></a>00998 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (h == NULL)
<a name="l00999"></a>00999 inet_ntop(AF_INET6, &s.sin6->sin6_addr, host, hostlen);
<a name="l01000"></a>01000 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (host != NULL && hostlen > strlen(h->h_name))
<a name="l01001"></a>01001 strcpy(host, h->h_name);
<a name="l01002"></a>01002 <span class="keywordflow">else</span>
<a name="l01003"></a>01003 <span class="keywordflow">return</span> 1; <span class="comment">// error</span>
<a name="l01004"></a>01004 }
<a name="l01005"></a>01005
<a name="l01006"></a>01006 findport(s.sin6->sin6_port, serv, servlen, flags);
<a name="l01007"></a>01007 }
<a name="l01008"></a>01008 <span class="preprocessor"># endif // AF_INET6</span>
<a name="l01009"></a>01009 <span class="preprocessor"></span>
<a name="l01010"></a>01010 <span class="keywordflow">return</span> 1; <span class="comment">// invalid family</span>
<a name="l01011"></a>01011 }
<a name="l01012"></a>01012
<a name="l01013"></a>01013 <span class="preprocessor">#endif // HAVE_GETADDRINFO</span>
<a name="l01014"></a>01014 <span class="preprocessor"></span>
<a name="l01015"></a>01015 <span class="preprocessor">#ifndef HAVE_INET_NTOP</span>
<a name="l01016"></a>01016 <span class="preprocessor"></span>
<a name="l01017"></a>01017 <span class="preprocessor">#define KRF_inet_ntop KRF_USING_OWN_INET_NTOP</span>
<a name="l01018"></a>01018 <span class="preprocessor"></span>
<a name="l01019"></a>01019 <span class="keyword">static</span> <span class="keywordtype">void</span> add_dwords(<span class="keywordtype">char</span> *buf, Q_UINT16 *dw, <span class="keywordtype">int</span> count)
<a name="l01020"></a>01020 {
<a name="l01021"></a>01021 <span class="keywordtype">int</span> i = 1;
<a name="l01022"></a>01022 sprintf(buf + strlen(buf), <span class="stringliteral">"%x"</span>, ntohs(dw[0]));
<a name="l01023"></a>01023 <span class="keywordflow">while</span> (--count)
<a name="l01024"></a>01024 sprintf(buf + strlen(buf), <span class="stringliteral">":%x"</span>, ntohs(dw[i++]));
<a name="l01025"></a>01025 }
<a name="l01026"></a>01026
<a name="l01027"></a>01027 <span class="keyword">const</span> <span class="keywordtype">char</span>* inet_ntop(<span class="keywordtype">int</span> af, <span class="keyword">const</span> <span class="keywordtype">void</span> *cp, <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> len)
<a name="l01028"></a>01028 {
<a name="l01029"></a>01029 <span class="keywordtype">char</span> buf2[<span class="keyword">sizeof</span> <span class="stringliteral">"1234:5678:9abc:def0:1234:5678:255.255.255.255"</span> + 1];
<a name="l01030"></a>01030 Q_UINT8 *data = (Q_UINT8*)cp;
<a name="l01031"></a>01031
<a name="l01032"></a>01032 <span class="keywordflow">if</span> (af == AF_INET)
<a name="l01033"></a>01033 {
<a name="l01034"></a>01034 sprintf(buf2, <span class="stringliteral">"%u.%u.%u.%u"</span>, data[0], data[1], data[2], data[3]);
<a name="l01035"></a>01035
<a name="l01036"></a>01036 <span class="keywordflow">if</span> (len > strlen(buf2))
<a name="l01037"></a>01037 {
<a name="l01038"></a>01038 strcpy(buf, buf2);
<a name="l01039"></a>01039 <span class="keywordflow">return</span> buf;
<a name="l01040"></a>01040 }
<a name="l01041"></a>01041
<a name="l01042"></a>01042 errno = ENOSPC;
<a name="l01043"></a>01043 <span class="keywordflow">return</span> NULL; <span class="comment">// failed</span>
<a name="l01044"></a>01044 }
<a name="l01045"></a>01045
<a name="l01046"></a>01046 <span class="preprocessor"># ifdef AF_INET6</span>
<a name="l01047"></a>01047 <span class="preprocessor"></span> <span class="keywordflow">if</span> (af == AF_INET6)
<a name="l01048"></a>01048 {
<a name="l01049"></a>01049 Q_UINT16 *p = (Q_UINT16*)data;
<a name="l01050"></a>01050 Q_UINT16 *longest = NULL, *cur = NULL;
<a name="l01051"></a>01051 <span class="keywordtype">int</span> longest_length = 0, cur_length;
<a name="l01052"></a>01052 <span class="keywordtype">int</span> i;
<a name="l01053"></a>01053
<a name="l01054"></a>01054 <span class="keywordflow">if</span> (KDE_IN6_IS_ADDR_V4MAPPED(p) || KDE_IN6_IS_ADDR_V4COMPAT(p))
<a name="l01055"></a>01055 sprintf(buf2, <span class="stringliteral">"::%s%u.%u.%u.%u"</span>,
<a name="l01056"></a>01056 KDE_IN6_IS_ADDR_V4MAPPED(p) ? <span class="stringliteral">"ffff:"</span> : <span class="stringliteral">""</span>,
<a name="l01057"></a>01057 buf[12], buf[13], buf[14], buf[15]);
<a name="l01058"></a>01058 <span class="keywordflow">else</span>
<a name="l01059"></a>01059 {
<a name="l01060"></a>01060 <span class="comment">// find the longest sequence of zeroes</span>
<a name="l01061"></a>01061 <span class="keywordflow">for</span> (i = 0; i < 8; i++)
<a name="l01062"></a>01062 <span class="keywordflow">if</span> (cur == NULL && p[i] == 0)
<a name="l01063"></a>01063 {
<a name="l01064"></a>01064 <span class="comment">// a zero, start the sequence</span>
<a name="l01065"></a>01065 cur = p + i;
<a name="l01066"></a>01066 cur_length = 1;
<a name="l01067"></a>01067 }
<a name="l01068"></a>01068 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (cur != NULL && p[i] == 0)
<a name="l01069"></a>01069 <span class="comment">// part of the sequence</span>
<a name="l01070"></a>01070 cur_length++;
<a name="l01071"></a>01071 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (cur != NULL && p[i] != 0)
<a name="l01072"></a>01072 {
<a name="l01073"></a>01073 <span class="comment">// end of the sequence</span>
<a name="l01074"></a>01074 <span class="keywordflow">if</span> (cur_length > longest_length)
<a name="l01075"></a>01075 {
<a name="l01076"></a>01076 longest_length = cur_length;
<a name="l01077"></a>01077 longest = cur;
<a name="l01078"></a>01078 }
<a name="l01079"></a>01079 cur = NULL; <span class="comment">// restart sequence</span>
<a name="l01080"></a>01080 }
<a name="l01081"></a>01081 <span class="keywordflow">if</span> (cur != NULL && cur_length > longest_length)
<a name="l01082"></a>01082 {
<a name="l01083"></a>01083 longest_length = cur_length;
<a name="l01084"></a>01084 longest = cur;
<a name="l01085"></a>01085 }
<a name="l01086"></a>01086
<a name="l01087"></a>01087 <span class="keywordflow">if</span> (longest_length > 1)
<a name="l01088"></a>01088 {
<a name="l01089"></a>01089 <span class="comment">// We have a candidate</span>
<a name="l01090"></a>01090 buf2[0] = <span class="charliteral">'\0'</span>;
<a name="l01091"></a>01091 <span class="keywordflow">if</span> (longest != p)
<a name="l01092"></a>01092 add_dwords(buf2, p, longest - p);
<a name="l01093"></a>01093 strcat(buf2, <span class="stringliteral">"::"</span>);
<a name="l01094"></a>01094 <span class="keywordflow">if</span> (longest + longest_length < p + 8)
<a name="l01095"></a>01095 add_dwords(buf2, longest + longest_length, 8 - (longest - p) - longest_length);
<a name="l01096"></a>01096 }
<a name="l01097"></a>01097 <span class="keywordflow">else</span>
<a name="l01098"></a>01098 {
<a name="l01099"></a>01099 <span class="comment">// Nope, no candidate</span>
<a name="l01100"></a>01100 buf2[0] = <span class="charliteral">'\0'</span>;
<a name="l01101"></a>01101 add_dwords(buf2, p, 8);
<a name="l01102"></a>01102 }
<a name="l01103"></a>01103 }
<a name="l01104"></a>01104
<a name="l01105"></a>01105 <span class="keywordflow">if</span> (strlen(buf2) < len)
<a name="l01106"></a>01106 {
<a name="l01107"></a>01107 strcpy(buf, buf2);
<a name="l01108"></a>01108 <span class="keywordflow">return</span> buf;
<a name="l01109"></a>01109 }
<a name="l01110"></a>01110
<a name="l01111"></a>01111 errno = ENOSPC;
<a name="l01112"></a>01112 <span class="keywordflow">return</span> NULL;
<a name="l01113"></a>01113 }
<a name="l01114"></a>01114 <span class="preprocessor"># endif</span>
<a name="l01115"></a>01115 <span class="preprocessor"></span>
<a name="l01116"></a>01116 errno = EAFNOSUPPORT;
<a name="l01117"></a>01117 <span class="keywordflow">return</span> NULL; <span class="comment">// a family we don't know about</span>
<a name="l01118"></a>01118 }
<a name="l01119"></a>01119
<a name="l01120"></a>01120 <span class="preprocessor">#else // HAVE_INET_NTOP</span>
<a name="l01121"></a>01121 <span class="preprocessor"></span>
<a name="l01122"></a>01122 <span class="preprocessor">#define KRF_inet_ntop 0</span>
<a name="l01123"></a>01123 <span class="preprocessor"></span>
<a name="l01124"></a>01124 <span class="preprocessor">#endif // HAVE_INET_NTOP</span>
<a name="l01125"></a>01125 <span class="preprocessor"></span>
<a name="l01126"></a>01126 <span class="preprocessor">#ifndef HAVE_INET_PTON</span>
<a name="l01127"></a>01127 <span class="preprocessor"></span>
<a name="l01128"></a>01128 <span class="preprocessor">#define KRF_inet_pton KRF_USING_OWN_INET_PTON</span>
<a name="l01129"></a>01129 <span class="preprocessor"></span><span class="keywordtype">int</span> inet_pton(<span class="keywordtype">int</span> af, <span class="keyword">const</span> <span class="keywordtype">char</span> *cp, <span class="keywordtype">void</span> *buf)
<a name="l01130"></a>01130 {
<a name="l01131"></a>01131 <span class="keywordflow">if</span> (af == AF_INET)
<a name="l01132"></a>01132 {
<a name="l01133"></a>01133 <span class="comment">// Piece of cake</span>
<a name="l01134"></a>01134 <span class="keywordtype">unsigned</span> p[4];
<a name="l01135"></a>01135 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *q = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)buf;
<a name="l01136"></a>01136 <span class="keywordflow">if</span> (sscanf(cp, <span class="stringliteral">"%u.%u.%u.%u"</span>, p, p + 1, p + 2, p + 3) != 4)
<a name="l01137"></a>01137 <span class="keywordflow">return</span> 0;
<a name="l01138"></a>01138
<a name="l01139"></a>01139 <span class="keywordflow">if</span> (p[0] > 0xff || p[1] > 0xff || p[2] > 0xff || p[3] > 0xff)
<a name="l01140"></a>01140 <span class="keywordflow">return</span> 0;
<a name="l01141"></a>01141
<a name="l01142"></a>01142 q[0] = p[0];
<a name="l01143"></a>01143 q[1] = p[1];
<a name="l01144"></a>01144 q[2] = p[2];
<a name="l01145"></a>01145 q[3] = p[3];
<a name="l01146"></a>01146
<a name="l01147"></a>01147 <span class="keywordflow">return</span> 1;
<a name="l01148"></a>01148 }
<a name="l01149"></a>01149
<a name="l01150"></a>01150 <span class="preprocessor"># ifdef AF_INET6</span>
<a name="l01151"></a>01151 <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (af == AF_INET6)
<a name="l01152"></a>01152 {
<a name="l01153"></a>01153 Q_UINT16 addr[8];
<a name="l01154"></a>01154 <span class="keyword">const</span> <span class="keywordtype">char</span> *p = cp;
<a name="l01155"></a>01155 <span class="keywordtype">int</span> n = 0, start = 8;
<a name="l01156"></a>01156 <span class="keywordtype">bool</span> has_v4 = strchr(p, <span class="charliteral">'.'</span>) != NULL;
<a name="l01157"></a>01157
<a name="l01158"></a>01158 memset(addr, 0, <span class="keyword">sizeof</span>(addr));
<a name="l01159"></a>01159
<a name="l01160"></a>01160 <span class="keywordflow">if</span> (*p == <span class="charliteral">'\0'</span> || p[1] == <span class="charliteral">'\0'</span>)
<a name="l01161"></a>01161 <span class="keywordflow">return</span> 0; <span class="comment">// less than 2 chars is not valid</span>
<a name="l01162"></a>01162
<a name="l01163"></a>01163 <span class="keywordflow">if</span> (*p == <span class="charliteral">':'</span> && p[1] == <span class="charliteral">':'</span>)
<a name="l01164"></a>01164 {
<a name="l01165"></a>01165 start = 0;
<a name="l01166"></a>01166 p += 2;
<a name="l01167"></a>01167 }
<a name="l01168"></a>01168 <span class="keywordflow">while</span> (*p)
<a name="l01169"></a>01169 {
<a name="l01170"></a>01170 <span class="keywordflow">if</span> (has_v4 && inet_pton(AF_INET, p, addr + n) != 0)
<a name="l01171"></a>01171 {
<a name="l01172"></a>01172 <span class="comment">// successful v4 convertion</span>
<a name="l01173"></a>01173 addr[n] = ntohs(addr[n]);
<a name="l01174"></a>01174 n++;
<a name="l01175"></a>01175 addr[n] = ntohs(addr[n]);
<a name="l01176"></a>01176 n++;
<a name="l01177"></a>01177 <span class="keywordflow">break</span>;
<a name="l01178"></a>01178 }
<a name="l01179"></a>01179 <span class="keywordflow">if</span> (sscanf(p, <span class="stringliteral">"%hx"</span>, addr + n++) != 1)
<a name="l01180"></a>01180 <span class="keywordflow">return</span> 0;
<a name="l01181"></a>01181
<a name="l01182"></a>01182 <span class="keywordflow">while</span> (*p && *p != <span class="charliteral">':'</span>)
<a name="l01183"></a>01183 p++;
<a name="l01184"></a>01184 <span class="keywordflow">if</span> (!*p)
<a name="l01185"></a>01185 <span class="keywordflow">break</span>;
<a name="l01186"></a>01186 p++;
<a name="l01187"></a>01187
<a name="l01188"></a>01188 <span class="keywordflow">if</span> (*p == <span class="charliteral">':'</span>) <span class="comment">// another ':'?</span>
<a name="l01189"></a>01189 {
<a name="l01190"></a>01190 <span class="keywordflow">if</span> (start != 8)
<a name="l01191"></a>01191 <span class="keywordflow">return</span> 0; <span class="comment">// two :: were found</span>
<a name="l01192"></a>01192 start = n;
<a name="l01193"></a>01193 p++;
<a name="l01194"></a>01194 }
<a name="l01195"></a>01195 }
<a name="l01196"></a>01196
<a name="l01197"></a>01197 <span class="comment">// if start is not 8, then a "::" was found at word 'start'</span>
<a name="l01198"></a>01198 <span class="comment">// n is the number of converted words</span>
<a name="l01199"></a>01199 <span class="comment">// n == 8 means everything was converted and no moving is necessary</span>
<a name="l01200"></a>01200 <span class="comment">// n < 8 means that we have to move n - start words 8 - n words to the right</span>
<a name="l01201"></a>01201 <span class="keywordflow">if</span> (start == 8 && n != 8)
<a name="l01202"></a>01202 <span class="keywordflow">return</span> 0; <span class="comment">// bad conversion</span>
<a name="l01203"></a>01203 memmove(addr + start + (8 - n), addr + start, (n - start) * <span class="keyword">sizeof</span>(Q_UINT16));
<a name="l01204"></a>01204 memset(addr + start, 0, (8 - n) * <span class="keyword">sizeof</span>(Q_UINT16));
<a name="l01205"></a>01205
<a name="l01206"></a>01206 <span class="comment">// check the byte order</span>
<a name="l01207"></a>01207 <span class="comment">// The compiler should optimise this out in big endian machines</span>
<a name="l01208"></a>01208 <span class="keywordflow">if</span> (htons(0x1234) != 0x1234)
<a name="l01209"></a>01209 <span class="keywordflow">for</span> (n = 0; n < 8; n++)
<a name="l01210"></a>01210 addr[n] = htons(addr[n]);
<a name="l01211"></a>01211
<a name="l01212"></a>01212 memcpy(buf, addr, <span class="keyword">sizeof</span>(addr));
<a name="l01213"></a>01213 <span class="keywordflow">return</span> 1;
<a name="l01214"></a>01214 }
<a name="l01215"></a>01215 <span class="preprocessor"># endif</span>
<a name="l01216"></a>01216 <span class="preprocessor"></span>
<a name="l01217"></a>01217 errno = EAFNOSUPPORT;
<a name="l01218"></a>01218 <span class="keywordflow">return</span> -1; <span class="comment">// unknown family</span>
<a name="l01219"></a>01219 }
<a name="l01220"></a>01220
<a name="l01221"></a>01221 <span class="preprocessor">#else // HAVE_INET_PTON</span>
<a name="l01222"></a>01222 <span class="preprocessor"></span>
<a name="l01223"></a>01223 <span class="preprocessor">#define KRF_inet_pton 0</span>
<a name="l01224"></a>01224 <span class="preprocessor"></span>
<a name="l01225"></a>01225 <span class="preprocessor">#endif // HAVE_INET_PTON</span>
<a name="l01226"></a>01226 <span class="preprocessor"></span>
<a name="l01227"></a>01227 <span class="preprocessor">#ifdef AF_INET6</span>
<a name="l01228"></a>01228 <span class="preprocessor"></span><span class="preprocessor"># define KRF_afinet6 KRF_KNOWS_AF_INET6</span>
<a name="l01229"></a>01229 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l01230"></a>01230 <span class="preprocessor"></span><span class="preprocessor"># define KRF_afinet6 0</span>
<a name="l01231"></a>01231 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l01232"></a>01232 <span class="preprocessor"></span>
<a name="l01233"></a>01233 <span class="keyword">namespace </span>KDE
<a name="l01234"></a>01234 {
<a name="l01236"></a>01236 <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> KDE_EXPORT resolverFlags = KRF_getaddrinfo | KRF_resolver | KRF_afinet6 | KRF_inet_ntop | KRF_inet_pton;
<a name="l01237"></a>01237 }
</pre></div></div>
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