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/*****************************************************************************
*
* evemu - Kernel device emulation
*
* Copyright (C) 2010, 2011 Canonical Ltd.
*
* This program 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 3 of the License, or (at your
* option) any later version.
*
* This program 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, see <http://www.gnu.org/licenses/>.
*
* Copyright (C) 2010 Henrik Rydberg <rydberg@euromail.se>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
****************************************************************************/
#include <evemu.h>
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
static int describe_device(int fd)
{
struct evemu_device *dev;
int ret = -ENOMEM;
dev = evemu_new(0);
if (!dev)
goto out;
ret = evemu_extract(dev, fd);
if (ret)
goto out;
evemu_write(dev, stdout);
out:
evemu_delete(dev);
return ret;
}
int main(int argc, char *argv[])
{
int fd;
if (argc < 2) {
fprintf(stderr, "Usage: %s <device>\n", argv[0]);
return -1;
}
fd = open(argv[1], O_RDONLY);
if (fd < 0) {
fprintf(stderr, "error: could not open device\n");
return -1;
}
if (describe_device(fd)) {
fprintf(stderr, "error: could not describe device\n");
}
close(fd);
return 0;
}
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