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/*
* This file is part of GNUTLS.
*
* GNUTLS is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GNUTLS is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
/* This debug file was contributed by
* Paul Sheer <psheer@icon.co.za>. Some changes were made by nmav.
* Its purpose is to debug non blocking behaviour of gnutls. The included
* send() and recv() functions return EAGAIN errors in random.
*
*/
#ifdef IO_DEBUG
#include <gnutls_int.h>
#define EDUNNO EAGAIN /* EAGAIN */
extern int errno;
static int initialized_rand = 0;
#define INITIALIZE_RAND if (initialized_rand==0) {\
srand(time(0)); \
initialized_rand = 1; \
}
static int recv_debug(int fd, char *buf, int len, int flags)
{
INITIALIZE_RAND;
if (!(rand() % IO_DEBUG)) {
errno = EDUNNO;
return -1;
}
if (len > 1)
len = 1;
return recv(fd, buf, len, flags);
}
#define recv recv_debug
static int send_debug(int fd, const char *buf, int len, int flags)
{
INITIALIZE_RAND;
if (!(rand() % IO_DEBUG)) {
errno = EDUNNO;
return -1;
}
if (len > 10)
len = 10;
return send(fd, buf, len, flags);
}
#define send send_debug
#endif
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