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<a class="el" href="dir_000000.html">src</a> / <a class="el" href="dir_000001.html">libutils</a></div>
<h1>addr.c</h1><a href="addr_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/*</span>
00002 <span class="comment"> * Copyright (c) 2005, 2006 by KoanLogic s.r.l. <http://www.koanlogic.com></span>
00003 <span class="comment"> * All rights reserved.</span>
00004 <span class="comment"> *</span>
00005 <span class="comment"> * This file is part of KLone, and as such it is subject to the license stated</span>
00006 <span class="comment"> * in the LICENSE file which you have received as part of this distribution.</span>
00007 <span class="comment"> *</span>
00008 <span class="comment"> * $Id: addr.c,v 1.16 2006/05/27 16:34:01 tat Exp $</span>
00009 <span class="comment"> */</span>
00010
00011 <span class="preprocessor">#include "klone_conf.h"</span>
00012 <span class="preprocessor">#include <stdlib.h></span>
00013 <span class="preprocessor">#ifdef HAVE_STDINT</span>
00014 <span class="preprocessor"></span><span class="preprocessor">#include <stdint.h></span>
00015 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_STDINT */</span>
00016 <span class="preprocessor">#include <<a class="code" href="addr_8h.html">klone/addr.h</a>></span>
00017 <span class="preprocessor">#include <<a class="code" href="server_8h.html">klone/server.h</a>></span>
00018 <span class="preprocessor">#include <u/libu.h></span>
00019
<a name="l00020"></a><a class="code" href="addr_8h.html#a7">00020</a> <span class="keywordtype">int</span> <a class="code" href="addr_8h.html#a7">addr_free</a>(<a class="code" href="structaddr__s.html">addr_t</a> *a)
00021 {
00022 U_FREE(a);
00023 <span class="keywordflow">return</span> 0;
00024 }
00025
00026 <span class="keyword">static</span> <span class="keywordtype">int</span> addr_ipv4_create(u_config_t *c, <a class="code" href="structaddr__s.html">addr_t</a> *addr)
00027 {
00028 u_config_t *subkey;
00029 <span class="keywordtype">int</span> portn;
00030
00031 dbg_return_if (c == NULL, ~0);
00032 dbg_return_if (addr == NULL, ~0);
00033
00034 <span class="comment">/* set default values */</span>
00035 addr-><a class="code" href="structaddr__s.html#o0">type</a> = ADDR_IPV4;
00036 addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_family = AF_INET;
00037
00038 <span class="comment">/* use user-defined ip or port */</span>
00039 <span class="keywordflow">if</span>(!u_config_get_subkey(c, <span class="stringliteral">"ip"</span>, &subkey))
00040 {
00041 <span class="preprocessor">#ifdef OS_UNIX</span>
00042 <span class="preprocessor"></span> warn_err_ifm(inet_pton(AF_INET, u_config_get_value(subkey),
00043 &addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_addr) <= 0,
00044 <span class="stringliteral">"bad '<servname>.addr.ip' value"</span>);
00045 <span class="preprocessor">#else</span>
00046 <span class="preprocessor"></span> addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_addr.s_addr = inet_addr(u_config_get_value(subkey));
00047 warn_err_ifm(addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_addr.s_addr == INADDR_NONE,
00048 <span class="stringliteral">"bad '<servname>.addr.ip' value"</span>);
00049 <span class="preprocessor">#endif</span>
00050 <span class="preprocessor"></span> }
00051
00052 <span class="keywordflow">if</span>(!u_config_get_subkey(c, <span class="stringliteral">"port"</span>, &subkey))
00053 {
00054 portn = atoi(u_config_get_value(subkey));
00055 warn_err_ifm(portn < 1 || portn > 65535, <span class="stringliteral">"port out of range"</span>);
00056 addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_port = htons(portn);
00057 }
00058
00059 <span class="keywordflow">return</span> 0;
00060 err:
00061 <span class="keywordflow">return</span> ~0;
00062 }
00063
00064 <span class="keyword">static</span> <span class="keywordtype">int</span> addr_is_ipv4(<span class="keyword">const</span> <span class="keywordtype">char</span> *ip)
00065 {
00066 size_t i, len = strlen(ip);
00067
00068 dbg_return_if (ip == NULL, 0);
00069
00070 <span class="comment">/* assume ip it's of type IPv4 if it contains a dot '.' */</span>
00071 <span class="keywordflow">for</span>(i = 0; i < len; ++i)
00072 <span class="keywordflow">if</span>(ip[i] == <span class="charliteral">'.'</span>)
00073 <span class="keywordflow">return</span> 1;
00074
00075 <span class="keywordflow">return</span> 0;
00076 }
00077
<a name="l00078"></a><a class="code" href="addr_8h.html#a6">00078</a> <span class="keywordtype">int</span> <a class="code" href="addr_8h.html#a6">addr_set_ipv4_port</a>(<a class="code" href="structaddr__s.html">addr_t</a> *addr, <span class="keywordtype">int</span> port)
00079 {
00080 dbg_return_if (addr == NULL, ~0);
00081 dbg_return_if (port == 0, ~0);
00082
00083 addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_port = htons(port);
00084
00085 <span class="keywordflow">return</span> 0;
00086 }
00087
<a name="l00088"></a><a class="code" href="addr_8h.html#a5">00088</a> <span class="keywordtype">int</span> <a class="code" href="addr_8h.html#a5">addr_set_ipv4_ip</a>(<a class="code" href="structaddr__s.html">addr_t</a> *addr, <span class="keyword">const</span> <span class="keywordtype">char</span> *ip)
00089 {
00090 dbg_return_if (addr == NULL, ~0);
00091 dbg_return_if (ip == NULL, ~0);
00092
00093 addr-><a class="code" href="structaddr__s.html#o0">type</a> = ADDR_IPV4;
00094
00095 <span class="comment">/* set default values */</span>
00096 memset(&addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>, 0, <span class="keyword">sizeof</span>(addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>));
00097 addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_family = AF_INET;
00098 addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_addr.s_addr = inet_addr(ip);
00099
00100 <span class="keywordflow">return</span> 0;
00101 }
00102
<a name="l00103"></a><a class="code" href="addr_8h.html#a4">00103</a> <span class="keywordtype">int</span> <a class="code" href="addr_8h.html#a4">addr_set</a>(<a class="code" href="structaddr__s.html">addr_t</a> *addr, <span class="keyword">const</span> <span class="keywordtype">char</span> *ip, <span class="keywordtype">int</span> port)
00104 {
00105 dbg_return_if (addr == NULL, ~0);
00106 dbg_return_if (ip == NULL, ~0);
00107 dbg_return_if (port == 0, ~0);
00108
00109 <span class="keywordflow">if</span>(addr_is_ipv4(ip))
00110 {
00111 addr-><a class="code" href="structaddr__s.html#o0">type</a> = ADDR_IPV4;
00112
00113 <span class="comment">/* set default values */</span>
00114 memset(&addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>, 0, <span class="keyword">sizeof</span>(addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>));
00115 addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_family = AF_INET;
00116 addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_addr.s_addr = inet_addr(ip);
00117 addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_port = htons(port);
00118 } <span class="keywordflow">else</span> {
00119 <span class="keywordflow">return</span> ~0; <span class="comment">/* FIXME IPv6 */</span>
00120 }
00121
00122 <span class="keywordflow">return</span> 0;
00123 }
00124
<a name="l00125"></a><a class="code" href="addr_8h.html#a3">00125</a> <span class="keywordtype">int</span> <a class="code" href="addr_8h.html#a3">addr_set_from_sa</a>(<a class="code" href="structaddr__s.html">addr_t</a> *addr, <span class="keyword">struct</span> sockaddr *sa, size_t sz)
00126 {
00127 dbg_return_if (addr == NULL, ~0);
00128 dbg_return_if (sa == NULL, ~0);
00129
00130 <span class="keywordflow">switch</span>(sz)
00131 {
00132 <span class="keywordflow">case</span> <span class="keyword">sizeof</span>(<span class="keyword">struct </span>sockaddr_in):
00133 addr->type = ADDR_IPV4;
00134 memcpy(&addr->sa.sin, sa, sz);
00135 break;
00136 #ifndef NO_IPV6
00137 case sizeof(struct sockaddr_in6):
00138 addr->type = ADDR_IPV6;
00139 memcpy(&addr->sa.sin6, sa, sz);
00140 break;
00141 #endif
00142 #ifndef NO_UNIXSOCK
00143 case sizeof(struct sockaddr_un):
00144 addr->type = ADDR_UNIX;
00145 memcpy(&addr->sa.sun, sa, sz);
00146 break;
00147 #endif
00148 default:
00149 dbg("bad sockaddr size");
00150 return ~0;
00151 }
00152
00153 return 0;
00154 }
00155
<a name="l00156"></a><a class="code" href="addr_8h.html#a2">00156</a> int <a class="code" href="addr_8c.html#a7">addr_set_from_config</a>(addr_t *addr, u_config_t *c)
00157 {
00158 u_config_t *subkey;
00159 <span class="keyword">const</span> <span class="keywordtype">char</span> *type;
00160
00161 dbg_return_if (addr == NULL, ~0);
00162 dbg_return_if (c == NULL, ~0);
00163
00164 dbg_err_if(strcasecmp(u_config_get_key(c), <span class="stringliteral">"addr"</span>));
00165
00166 warn_err_ifm(u_config_get_subkey(c, <span class="stringliteral">"type"</span>, &subkey),
00167 <span class="stringliteral">"missing or bad '<servname>.addr.type' value"</span>);
00168
00169 type = u_config_get_value(subkey); <span class="comment">/* IPv4, IPv6, unix, etc. */</span>
00170
00171 <span class="keywordflow">if</span>(!strcasecmp(type, <span class="stringliteral">"IPv4"</span>))
00172 dbg_err_if(addr_ipv4_create(c, addr));
00173 <span class="keywordflow">else</span>
00174 warn_err_if(<span class="stringliteral">"bad '<servname>.addr.type', only IPv4 is supported"</span>);
00175
00176 <span class="keywordflow">return</span> 0;
00177 err:
00178 <span class="keywordflow">return</span> ~0;
00179 }
00180
<a name="l00181"></a><a class="code" href="addr_8h.html#a1">00181</a> <span class="keywordtype">int</span> <a class="code" href="addr_8h.html#a1">addr_create</a>(<a class="code" href="structaddr__s.html">addr_t</a> **pa)
00182 {
00183 <a class="code" href="structaddr__s.html">addr_t</a> *addr = NULL;
00184
00185 dbg_return_if (pa == NULL, ~0);
00186
00187 addr = u_zalloc(<span class="keyword">sizeof</span>(<a class="code" href="structaddr__s.html">addr_t</a>));
00188 dbg_err_if(addr == NULL);
00189
00190 <span class="comment">/* set default ipv4 values */</span>
00191 memset(&addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>, 0, <span class="keyword">sizeof</span>(addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>));
00192 addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_family = AF_INET;
00193 addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_addr.s_addr = htonl(INADDR_ANY);
00194 addr-><a class="code" href="structaddr__s.html#o4">sa</a>.<a class="code" href="structaddr__s.html#o1">sin</a>.sin_port = htons(0);
00195
00196 *pa = addr;
00197
00198 <span class="keywordflow">return</span> 0;
00199 err:
00200 <span class="keywordflow">if</span>(addr)
00201 <a class="code" href="addr_8h.html#a7">addr_free</a>(addr);
00202 <span class="keywordflow">return</span> ~0;
00203 }
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