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* debian/mandos-client.README.Debian: Document network hook facility.
* debian/mandos-client.docs (network-hooks.d): Added.
* initramfs-tools-hook: Also pass VERBOSITY to network hook.
* plugins.d/mandos-client.xml (DESCRIPTION): Document network
                                             interface selection
                                             algorithm.
  (OPTIONS/--interface): Refer to NETWORK HOOKS section.
  (OVERVIEW): Refer to password-prompt(8mandos) explicitly.
  (NETWORK HOOKS): New section.
  (FILES): Add "/lib/mandos/network-hooks.d".

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plugins.d/splashy.c
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/*
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 * Splashy - Read a password from splashy and output it
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 * 
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 * Copyright © 2008-2017 Teddy Hogeborn
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 * Copyright © 2008-2017 Björn Påhlsson
 
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 * Copyright © 2008-2011 Teddy Hogeborn
 
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 * Copyright © 2008-2011 Björn Påhlsson
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 * 
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 * This program is free software: you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License as
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int signal_received;
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/* Function to use when printing errors */
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__attribute__((format (gnu_printf, 3, 4)))
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void error_plus(int status, int errnum, const char *formatstring,
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                ...){
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  va_list ap;
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  va_start(ap, formatstring);
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  ret = vasprintf(&text, formatstring, ap);
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  if(ret == -1){
 
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  if (ret == -1){
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    fprintf(stderr, "Mandos plugin %s: ",
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            program_invocation_short_name);
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    vfprintf(stderr, formatstring, ap);