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  • Committer: Teddy Hogeborn
  • Date: 2019-07-14 23:39:53 UTC
  • Revision ID: teddy@recompile.se-20190714233953-1zmsd3o062xloazt
Server bug fix: Allow restarts when using port= option

If the Mandos server is configured to use a specific TCP port to
listen to (by using the port= option in mandos.conf or the command
line --port option), that port becomes unusable for a time when the
Mandos server is restarted, making restarts fail.  Avoid this by, if a
port number is specified, using SO_REUSEADDR when binding the
listening TCP socket to a port number.

* mandos (IPv6_TCPServer.server_bind): Set self.allow_reuse_address if
                                       a port number is specified.

Reported-by: Juan Miguel Alcarria Herrera <juanmi@arco2000.es>

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Lines of Context:
plugins.d/mandos-client.c
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 * "browse_callback", and parts of "main".
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 * 
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 * Everything else is
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 * Copyright © 2008-2018 Teddy Hogeborn
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 * Copyright © 2008-2018 Björn Påhlsson
 
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 * Copyright © 2008-2019 Teddy Hogeborn
 
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 * Copyright © 2008-2019 Björn Påhlsson
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 * 
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 * This file is part of Mandos.
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 * 
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        argp_state_help(state, state->out_stream,
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                        (ARGP_HELP_STD_HELP | ARGP_HELP_EXIT_ERR)
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                        & ~(unsigned int)ARGP_HELP_EXIT_OK);
 
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        __builtin_unreachable();
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      case -3:                  /* --usage */
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        argp_state_help(state, state->out_stream,
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                        ARGP_HELP_USAGE | ARGP_HELP_EXIT_ERR);
 
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        __builtin_unreachable();
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      case 'V':                 /* --version */
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        fprintf_plus(state->out_stream, "%s\n", argp_program_version);
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        exit(argp_err_exit_status);