121 lines
2.4 KiB
C
121 lines
2.4 KiB
C
/*
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* Scyther : An automatic verifier for security protocols.
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* Copyright (C) 2007-2013 Cas Cremers
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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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include "error.h"
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//! Die from error with exit code
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void
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error_die (void)
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{
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exit (EXIT_ERROR);
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}
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//! print to stderror (must be generic to capture linux variants)
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void
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vprintfstderr (char *fmt, va_list args)
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{
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#ifdef USESTDERR
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vfprintf (stderr, fmt, args);
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#else
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// no alternative yet
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#endif
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}
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void
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printfstderr (char *fmt, ...)
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{
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va_list args;
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va_start (args, fmt);
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vprintfstderr (fmt, args);
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va_end (args);
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}
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//! Print error message header
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/**
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* Adapted from [K&R2], p. 174
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*@todo It would be nice to redirect all output to stderr, which would enable use of termprint etc.
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*/
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void
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error_pre (void)
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{
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printfstderr ("error: ");
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}
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//! Print post-error message and die.
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/**
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* Adapted from [K&R2], p. 174
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* Input is comparable to printf, only end of line is not required.
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*/
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void
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error_post (char *fmt, ...)
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{
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va_list args;
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va_start (args, fmt);
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vprintfstderr (fmt, args);
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printfstderr ("\n");
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va_end (args);
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exit (EXIT_ERROR);
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}
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//! Print error message and die.
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/**
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* Adapted from [K&R2], p. 174
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* Input is comparable to printf, only end of line is not required.
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*/
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void
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error (char *fmt, ...)
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{
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va_list args;
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error_pre ();
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va_start (args, fmt);
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vprintfstderr (fmt, args);
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printfstderr ("\n");
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va_end (args);
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error_die ();
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}
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//! Warning pre
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void
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warning_pre (void)
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{
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printfstderr ("warning: ");
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}
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//! Print warning
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/**
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* Input is comparable to printf, only end of line is not required.
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*/
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void
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warning (char *fmt, ...)
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{
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va_list args;
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va_start (args, fmt);
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warning_pre ();
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vprintfstderr (fmt, args);
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printfstderr ("\n");
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va_end (args);
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}
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