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// echo.C -*- C++ -*- socket library |
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// Copyright (C) 1992,1993,1994 Gnanasekaran Swaminathan <gs4t@virginia.edu> |
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// |
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// Permission is granted to use at your own risk and distribute this software |
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// in source and binary forms provided the above copyright |
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// notice and this paragraph are preserved on all copies. |
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// This software is provided "as is" with no express or implied warranty. |
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// |
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// Version: 17Oct95 1.10 |
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|
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#include <config.h> |
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|
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#include <echo.h> |
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#include <Fork.h> |
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#include <stdlib.h> |
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|
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void echo::echobuf::serve_clients (int portno) |
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{ |
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if (protocol_name ()) { |
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if (portno < 0) |
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sockinetbuf::bind ((unsigned long) INADDR_ANY, "echo", protocol_name ()); |
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else if (portno <= 1024) { |
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sockinetbuf::bind (); |
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cout << "Host: " << localhost () << endl |
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<< "Port: " << localport () << endl; |
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} else |
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sockinetbuf::bind ((unsigned long) INADDR_ANY, portno); |
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|
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// act as a server now |
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listen (sockbuf::somaxconn); |
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|
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// commit suicide when we receive SIGTERM |
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Fork::suicide_signal (SIGTERM); |
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|
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for (;;) { |
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sockbuf s = accept (); |
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|
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Fork f (1, 1); // kill my children when I get terminated. |
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|
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if (f.is_child ()) { |
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char buf [1024]; |
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int rcnt; |
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|
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while ((rcnt = s.read (buf, 1024)) > 0) |
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while (rcnt != 0) { |
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int wcnt = s.write (buf, rcnt); |
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if (wcnt == -1) { |
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error ("echo::echobuf::bind"); |
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return; |
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} |
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rcnt -= wcnt; |
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} |
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sleep (300); |
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exit (0); |
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} |
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} |
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} |
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} |
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