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80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/*
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* Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation
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*
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* Author: Nikos Mavrogiannopoulos
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*
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* This file is part of GNUTLS.
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*
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* The GNUTLS library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA
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*
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*/
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/* This debug file was contributed by
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* Paul Sheer <psheer@icon.co.za>. Some changes were made by nmav.
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* Its purpose is to debug non blocking behavior of gnutls. The included
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* send() and recv() functions return EAGAIN errors in random.
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*
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*/
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#ifdef IO_DEBUG
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#include <gnutls_int.h>
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#define EDUNNO EAGAIN /* EAGAIN */
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extern int errno;
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static int initialized_rand = 0;
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#define INITIALIZE_RAND if (initialized_rand==0) {\
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srand(time(0)); \
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initialized_rand = 1; \
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}
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static int
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recv_debug (int fd, char *buf, int len, int flags)
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{
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INITIALIZE_RAND;
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if (!(rand () % IO_DEBUG))
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{
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errno = EDUNNO;
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return -1;
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}
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if (len > 1)
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len = 1;
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return recv (fd, buf, len, flags);
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}
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#define recv recv_debug
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static int
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send_debug (int fd, const char *buf, int len, int flags)
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{
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INITIALIZE_RAND;
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if (!(rand () % IO_DEBUG))
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{
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errno = EDUNNO;
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return -1;
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}
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if (len > 10)
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len = 10;
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return send (fd, buf, len, flags);
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}
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#define send send_debug
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#endif
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