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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>tcpip.cc Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body bgcolor="#ffffff"><!-- Generated by Doxygen 1.2.13.1 --><h1>tcpip.cc</h1><a href="tcpip_8cc.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 00034 <font class="preprocessor">#include <sys/socket.h></font>00035 <font class="preprocessor">#include <arpa/inet.h></font>00036 <font class="preprocessor">#include <netinet/in.h></font>00037 <font class="preprocessor">#include <netdb.h></font>00038 <font class="preprocessor">#include <iostream.h></font>00039 <font class="preprocessor">#include <string.h></font>00040 <font class="preprocessor">#include <strings.h></font>00041 <font class="preprocessor">#include <stdlib.h></font>00042 <font class="preprocessor">#include <assert.h></font>00043 <font class="preprocessor">#include "<a class="code" href="const_8h.html">const.h</a>"</font>00044 <font class="preprocessor">#include "<a class="code" href="tcpip_8h.html">tcpip.h</a>"</font>00045 00046 <a name="l00047"></a><a class="code" href="tcpip_8cc.html#a0">00047</a> <font class="keyword">extern</font> <font class="keywordtype">int</font> <a class="code" href="tcpip_8cc.html#a0">errno</a>;<a name="l00048"></a><a class="code" href="tcpip_8cc.html#a1">00048</a> <font class="keyword">extern</font> <font class="keywordtype">char</font>* <a class="code" href="tcpip_8cc.html#a1">sys_errlist</a>[];00049 00050 <a name="l00051"></a><a class="code" href="classtcpip.html#a0">00051</a> <a class="code" href="classtcpip.html#a0">tcpip :: tcpip</a> ()00052 {00053 <a class="code" href="classtcpip.html#o0">portbase</a> = 0;00054 }00055 <a name="l00056"></a><a class="code" href="classtcpip.html#a1">00056</a> <a class="code" href="classtcpip.html#a1">tcpip :: ~tcpip</a> ()00057 {00058 }00059 00060 <a name="l00061"></a><a class="code" href="classtcpip.html#b0">00061</a> <font class="keywordtype">int</font> <a class="code" href="classtcpip.html#b0">tcpip :: connectTCP</a> (<font class="keywordtype">char</font> *host, <font class="keywordtype">char</font> *service)00062 {00063 <font class="keywordflow">return</font> <a class="code" href="classtcpip.html#c0">connectsock</a> (host, service, <font class="stringliteral">"tcp"</font>);00064 }00065 <a name="l00066"></a><a class="code" href="classtcpip.html#b1">00066</a> <font class="keywordtype">int</font> <a class="code" href="classtcpip.html#b1">tcpip :: connectUDP</a> (<font class="keywordtype">char</font> *host, <font class="keywordtype">char</font> *service)00067 {00068 <font class="keywordflow">return</font> <a class="code" href="classtcpip.html#c0">connectsock</a> (host, service, <font class="stringliteral">"udp"</font>);00069 }00070 <a name="l00071"></a><a class="code" href="classtcpip.html#b2">00071</a> <font class="keywordtype">int</font> <a class="code" href="classtcpip.html#b2">tcpip :: passiveTCP</a> (<font class="keywordtype">char</font> *service, <font class="keywordtype">int</font> qlen)00072 {00073 <font class="keywordflow">return</font> <a class="code" href="classtcpip.html#c1">passivesock</a> (service, <font class="stringliteral">"tcp"</font>, qlen);00074 }00075 <a name="l00076"></a><a class="code" href="classtcpip.html#b3">00076</a> <font class="keywordtype">int</font> <a class="code" href="classtcpip.html#b3">tcpip :: passiveUDP</a> (<font class="keywordtype">char</font> *service)00077 {00078 <font class="keywordflow">return</font> <a class="code" href="classtcpip.html#c1">passivesock</a> (service, <font class="stringliteral">"udp"</font>, 0);00079 }00080 <a name="l00081"></a><a class="code" href="classtcpip.html#c0">00081</a> <font class="keywordtype">int</font> <a class="code" href="classtcpip.html#c0">tcpip :: connectsock</a> (<font class="keywordtype">char</font> *host, <font class="keywordtype">char</font> *service, <font class="keywordtype">char</font>* protocol)00082 {00083 <font class="keyword">struct </font>hostent *phe;00084 <font class="keyword">struct </font>servent *pse;00085 <font class="keyword">struct </font>protoent *ppe;00086 <font class="keyword">struct </font>sockaddr_in sin;00087 <font class="keywordtype">int</font> s;00088 <font class="keywordtype">int</font> type;00089 bzero ((<font class="keywordtype">char</font>*) &sin, <font class="keyword">sizeof</font> (sin));00090 sin.sin_family = AF_INET;00091 <font class="keywordflow">if</font> ((pse = getservbyname (service, protocol)))00092 sin.sin_port = pse -> s_port;00093 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ((sin.sin_port = htons ((ushort) atoi (service))) == 0)00094 {00095 cerr << <a class="code" href="const_8h.html#a0">_NET_ERR_</a> << <font class="stringliteral">"can't get \""</font> << service << <font class="stringliteral">"\" service entry.\n"</font>;00096 exit (1);00097 }00098 <font class="keywordflow">if</font> ((phe = gethostbyname (host)))00099 bcopy (phe -> h_addr, (<font class="keywordtype">char</font>*) &sin.sin_addr, phe -> h_length);00100 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ((sin.sin_addr.s_addr = inet_addr (host)) == INADDR_NONE)00101 {00102 cerr << <a class="code" href="const_8h.html#a0">_NET_ERR_</a> << <font class="stringliteral">"can't get \""</font> << host << <font class="stringliteral">"\" host entry.\n"</font>;00103 exit (1);00104 }00105 <font class="keywordflow">if</font> ((ppe = getprotobyname (protocol)) == 0)00106 {00107 cerr << <a class="code" href="const_8h.html#a0">_NET_ERR_</a> << <font class="stringliteral">"can't get \""</font> << protocol << <font class="stringliteral">"\" protocol entry.\n"</font>;00108 exit (1);00109 }00110 <font class="keywordflow">if</font> (strcmp (protocol, <font class="stringliteral">"udp"</font>) == 0)00111 type = SOCK_DGRAM;00112 <font class="keywordflow">else</font>00113 type = SOCK_STREAM;00114 s = socket (PF_INET, type, ppe -> p_proto);00115 <font class="keywordflow">if</font> (s<0)00116 {00117 cerr << <a class="code" href="const_8h.html#a0">_NET_ERR_</a> << <font class="stringliteral">"can't create socket: "</font> << <a class="code" href="tcpip_8cc.html#a1">sys_errlist</a> [<a class="code" href="tcpip_8cc.html#a0">errno</a>] << <font class="stringliteral">"\n"</font>;00118 exit (1);00119 }00120 <font class="keywordflow">if</font> (connect (s, (<font class="keyword">struct</font> sockaddr *) &sin, <font class="keyword">sizeof</font> (sin)) < 0)00121 {00122 cerr << <a class="code" href="const_8h.html#a0">_NET_ERR_</a> << <font class="stringliteral">"can't connect to "</font> << host << <font class="stringliteral">" "</font> << service << <font class="stringliteral">": "</font> << <a class="code" href="tcpip_8cc.html#a1">sys_errlist</a> [<a class="code" href="tcpip_8cc.html#a0">errno</a>] << <font class="stringliteral">"\n"</font>;00123 exit (1);00124 }00125 <font class="keywordflow">return</font> s;00126 }00127 <a name="l00128"></a><a class="code" href="classtcpip.html#c1">00128</a> <font class="keywordtype">int</font> <a class="code" href="classtcpip.html#c1">tcpip :: passivesock</a> (<font class="keywordtype">char</font> *service, <font class="keywordtype">char</font> *protocol, <font class="keywordtype">int</font> qlen)00129 {00130 <font class="keyword">struct </font>servent *pse;00131 <font class="keyword">struct </font>protoent *ppe;00132 <font class="keyword">struct </font>sockaddr_in sin;00133 <font class="keywordtype">int</font> s;00134 <font class="keywordtype">int</font> type;00135 bzero ((<font class="keywordtype">char</font>*) &sin, <font class="keyword">sizeof</font> (sin));00136 sin.sin_family = AF_INET;00137 <font class="keywordflow">if</font> ((pse = getservbyname (service, protocol)))00138 sin.sin_port = htons (ntohs ((u_short) pse -> s_port) + <a class="code" href="classtcpip.html#o0">portbase</a>);00139 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ((sin.sin_port = htons ((ushort) atoi (service))) == 0)00140 {00141 cerr << <a class="code" href="const_8h.html#a0">_NET_ERR_</a> << <font class="stringliteral">"can't get \""</font> << service << <font class="stringliteral">"\" service entry.\n"</font>;00142 exit (1);00143 }00144 <font class="keywordflow">if</font> ((ppe = getprotobyname (protocol)) == 0)00145 {00146 cerr << <a class="code" href="const_8h.html#a0">_NET_ERR_</a> << <font class="stringliteral">"can't get \""</font> << protocol << <font class="stringliteral">"\" protocol entry.\n"</font>;00147 exit (1);00148 }00149 <font class="keywordflow">if</font> (strcmp (protocol, <font class="stringliteral">"udp"</font>) == 0)00150 type = SOCK_DGRAM;00151 <font class="keywordflow">else</font>00152 type = SOCK_STREAM;00153 s = socket (PF_INET, type, ppe -> p_proto);00154 <font class="keywordflow">if</font> (s<0)00155 {00156 cerr << <a class="code" href="const_8h.html#a0">_NET_ERR_</a> << <font class="stringliteral">"can't create socket: "</font> << <a class="code" href="tcpip_8cc.html#a1">sys_errlist</a> [<a class="code" href="tcpip_8cc.html#a0">errno</a>] << <font class="stringliteral">"\n"</font>;00157 exit (1);00158 }00159 <font class="keywordflow">if</font> (bind (s, (<font class="keyword">struct</font> sockaddr *) &sin, <font class="keyword">sizeof</font> (sin)) < 0)00160 {00161 cerr << <a class="code" href="const_8h.html#a0">_NET_ERR_</a> << <font class="stringliteral">"can't bind to "</font> << service << <font class="stringliteral">"port: "</font> << <a class="code" href="tcpip_8cc.html#a1">sys_errlist</a> [<a class="code" href="tcpip_8cc.html#a0">errno</a>] << <font class="stringliteral">"\n"</font>;00162 exit (1);00163 }00164 <font class="keywordflow">if</font> (type == SOCK_STREAM && listen (s, qlen) < 0)00165 {00166 cerr << <a class="code" href="const_8h.html#a0">_NET_ERR_</a> << <font class="stringliteral">"can't listen on "</font> << service << <font class="stringliteral">"port: "</font> << <a class="code" href="tcpip_8cc.html#a1">sys_errlist</a> [<a class="code" href="tcpip_8cc.html#a0">errno</a>] << <font class="stringliteral">"\n"</font>;00167 exit (1);00168 }00169 <font class="keywordflow">return</font> s;00170 }00171 </pre></div><hr><address><small>© 2002 Marcin Caban 'Cabko' and Borys Wisniewski 'Boria'</small></address></body></html>⌨️ 快捷键说明
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