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/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Data Differential YATL (i.e. libtest) library
*
* Copyright (C) 2012 Data Differential, http://datadifferential.com/
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * The names of its contributors may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <config.h>
#include <cstdlib>
#include <fcntl.h>
#include <getopt.h>
#include <iostream>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <libtest/wait.h>
static void version_command(const char *command_name, int major_version, int minor_version)
{
std::cout << command_name << " " << major_version << "." << minor_version << std::endl;
}
static void help_command(const char *command_name,
int major_version, int minor_version,
const struct option *long_options)
{
std::cout << command_name << " " << major_version << "." << minor_version << std::endl;
std::cout << "Current options. A '=' means the option takes a value." << std::endl << std::endl;
for (uint32_t x= 0; long_options[x].name; x++)
{
std::cout << "\t --" << long_options[x].name << char(long_options[x].has_arg ? '=' : ' ') << std::endl;
}
std::cout << std::endl;
}
static void close_stdio(void)
{
int fd;
if ((fd = open("/dev/null", O_RDWR, 0)) < 0)
{
return;
}
else
{
if (dup2(fd, STDIN_FILENO) < 0)
{
return;
}
if (dup2(fd, STDOUT_FILENO) < 0)
{
return;
}
if (dup2(fd, STDERR_FILENO) < 0)
{
return;
}
if (fd > STDERR_FILENO)
{
close(fd);
}
}
}
enum {
OPT_HELP,
OPT_QUIET,
OPT_VERSION
};
static void options_parse(int argc, char *argv[])
{
static struct option long_options[]=
{
{ "version", no_argument, NULL, OPT_VERSION},
{ "help", no_argument, NULL, OPT_HELP},
{ "quiet", no_argument, NULL, OPT_QUIET},
{0, 0, 0, 0},
};
bool opt_version= false;
bool opt_help= false;
bool opt_quiet= false;
int option_index= 0;
while (1)
{
int option_rv= getopt_long(argc, argv, "", long_options, &option_index);
if (option_rv == -1)
{
break;
}
switch (option_rv)
{
case OPT_HELP: /* --help or -h */
opt_help= true;
break;
case OPT_VERSION: /* --version or -v */
opt_version= true;
break;
case OPT_QUIET:
opt_quiet= true;
break;
case '?':
/* getopt_long already printed an error message. */
exit(EXIT_FAILURE);
default:
help_command(argv[0], 1, 0, long_options);
exit(EXIT_FAILURE);
}
}
if (opt_quiet)
{
close_stdio();
}
if (opt_version)
{
version_command(argv[0], 1, 0);
exit(EXIT_SUCCESS);
}
if (opt_help)
{
help_command(argv[0], 1, 0, long_options);
exit(EXIT_SUCCESS);
}
}
int main(int argc, char *argv[])
{
if (argc == 1)
{
return EXIT_FAILURE;
}
options_parse(argc, argv);
int ret= EXIT_FAILURE;
while (optind < argc)
{
libtest::Wait wait(argv[optind++]);
if (wait.successful() == false)
{
return EXIT_FAILURE;
}
ret= EXIT_SUCCESS;
}
return ret;
}
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