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/** @file
* @brief HID report descriptor - source test
*
* Copyright (C) 2010 Nikolai Kondrashov
*
* This file is part of hidrd.
*
* Hidrd 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.
*
* Hidrd 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 hidrd; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* @author Nikolai Kondrashov <spbnick@gmail.com>
*
* @(#) $Id: hidrd-convert.c 289 2010-03-21 20:45:27Z spb_nick $
*/
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "hidrd/util/fd.h"
#include "hidrd/fmt/list.h"
static int
usage(FILE *stream, const char *progname)
{
return
fprintf(
stream,
"Usage: %s [INPUT_FORMAT [INPUT_OPTS [INPUT [OUTPUT]]]]\n"
"Convert a HID report descriptor from "
"INPUT_FORMAT to native format.\n"
"With no INPUT, or when INPUT is -, read standard input.\n"
"With no OUTPUT, or when OUTPUT is -, write standard output.\n"
"\n",
progname);
}
int
main(int argc, char **argv)
{
int result = 1;
const char *input_format_name = "natv";
const hidrd_fmt *input_format = NULL;
const char *input_options = "";
const char *input_name = "-";
int input_fd = -1;
void *input_buf = NULL;
size_t input_size = 0;
hidrd_src *input = NULL;
const char *output_name = "-";
int output_fd = -1;
const hidrd_item *item;
const char **argp_list[] = {&input_format_name,
&input_options,
&input_name,
&output_name};
size_t i;
char *err = NULL;
/*
* Collect arguments
*/
for (argc--, argv++, i = 0;
argc > 0 && i < sizeof(argp_list) / sizeof(*argp_list);
argc--, argv++, i++)
*argp_list[i] = *argv;
if (argc > 0)
{
usage(stderr, program_invocation_short_name);
goto cleanup;
}
/*
* Lookup input format
*/
input_format = hidrd_fmt_list_lkp(input_format_name);
if (input_format == NULL)
{
fprintf(stderr, "Input format \"%s\" not found\n",
input_format_name);
goto cleanup;
}
/* Initialize input format */
hidrd_fmt_init(input_format);
/* Check that input format supports reading */
if (!hidrd_fmt_readable(input_format))
{
fprintf(stderr, "%s reading is not supported\n",
input_format->desc);
goto cleanup;
}
/*
* Open input and output files
*/
if (input_name[0] == '-' && input_name[1] == '\0')
input_fd = STDIN_FILENO;
else
{
input_fd = open(input_name, O_RDONLY);
if (input_fd < 0)
{
fprintf(stderr, "Failed to open input: %s\n", strerror(errno));
goto cleanup;
}
}
if (output_name[0] == '-' && output_name[1] == '\0')
output_fd = STDOUT_FILENO;
else
{
output_fd = open(output_name,
O_WRONLY | O_CREAT | O_TRUNC,
S_IRUSR | S_IWUSR |
S_IRGRP | S_IWGRP |
S_IROTH | S_IWOTH);
if (output_fd < 0)
{
fprintf(stderr, "Failed to open output: %s\n", strerror(errno));
goto cleanup;
}
}
/*
* Read the whole input file
*/
if (!hidrd_fd_read_whole(input_fd, &input_buf, &input_size))
{
fprintf(stderr, "Failed to read input: %s\n", strerror(errno));
goto cleanup;
}
/*
* Open input stream
*/
input = hidrd_src_new_opts(input_format->src, &err,
input_buf, input_size, input_options);
if (input == NULL)
{
fprintf(stderr, "Failed to open input stream:\n%s\n", err);
goto cleanup;
}
free(err);
err = NULL;
while ((item = hidrd_src_get(input)) != NULL)
if (!hidrd_fd_write_whole(output_fd,
item, hidrd_item_get_size(item)))
{
fprintf(stderr, "Failed to write output file\n%s\n",
(err = hidrd_src_errmsg(input)));
goto cleanup;
}
if (hidrd_src_error(input))
{
fprintf(stderr, "Failed to read input stream\n");
goto cleanup;
}
/* Success! */
result = 0;
cleanup:
free(err);
hidrd_src_delete(input);
free(input_buf);
if (input_fd >= 0 && input_fd != STDIN_FILENO)
close(input_fd);
if (output_fd >= 0 && output_fd != STDOUT_FILENO)
close(output_fd);
/* Cleanup input format */
if (input_format != NULL)
hidrd_fmt_clnp(input_format);
return result;
}
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