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// Copyright (c) 2010 The NetBSD Foundation, Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. 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.
//
// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
extern "C" {
#include <unistd.h>
}
#include <cerrno>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include "atf-c++/detail/application.hpp"
#include "atf-c++/detail/env.hpp"
#include "atf-c++/detail/fs.hpp"
#include "atf-c++/detail/sanity.hpp"
// ------------------------------------------------------------------------
// Auxiliary functions.
// ------------------------------------------------------------------------
namespace {
static
std::string
fix_plain_name(const char *filename)
{
const atf::fs::path filepath(filename);
if (filepath.branch_path().str() == ".")
return std::string("./") + filename;
else
return std::string(filename);
}
static
std::string*
construct_script(const char* filename)
{
const std::string libexecdir = atf::env::get(
"ATF_LIBEXECDIR", ATF_LIBEXECDIR);
const std::string pkgdatadir = atf::env::get(
"ATF_PKGDATADIR", ATF_PKGDATADIR);
const std::string shell = atf::env::get("ATF_SHELL", ATF_SHELL);
std::string* command = new std::string();
command->reserve(512);
(*command) += ("Atf_Check='" + libexecdir + "/atf-check' ; " +
"Atf_Shell='" + shell + "' ; " +
". " + pkgdatadir + "/libatf-sh.subr ; " +
". " + fix_plain_name(filename) + " ; " +
"main \"${@}\"");
return command;
}
static
const char**
construct_argv(const std::string& shell, const int interpreter_argc,
const char* const* interpreter_argv)
{
PRE(interpreter_argc >= 1);
PRE(interpreter_argv[0] != NULL);
const std::string* script = construct_script(interpreter_argv[0]);
const int count = 4 + (interpreter_argc - 1) + 1;
const char** argv = new const char*[count];
argv[0] = shell.c_str();
argv[1] = "-c";
argv[2] = script->c_str();
argv[3] = interpreter_argv[0];
for (int i = 1; i < interpreter_argc; i++)
argv[4 + i - 1] = interpreter_argv[i];
argv[count - 1] = NULL;
return argv;
}
} // anonymous namespace
// ------------------------------------------------------------------------
// The "atf_sh" class.
// ------------------------------------------------------------------------
class atf_sh : public atf::application::app {
static const char* m_description;
atf::fs::path m_shell;
options_set specific_options(void) const;
void process_option(int, const char*);
public:
atf_sh(void);
int main(void);
};
const char* atf_sh::m_description =
"atf-sh is a shell interpreter that extends the functionality of the "
"system sh(1) with the atf-sh library.";
atf_sh::atf_sh(void) :
app(m_description, "atf-sh(1)"),
m_shell(atf::fs::path(atf::env::get("ATF_SHELL", ATF_SHELL)))
{
}
atf_sh::options_set
atf_sh::specific_options(void)
const
{
using atf::application::option;
options_set opts;
INV(m_shell == atf::fs::path(atf::env::get("ATF_SHELL", ATF_SHELL)));
opts.insert(option('s', "shell", "Path to the shell interpreter to use; "
"default: " + m_shell.str()));
return opts;
}
void
atf_sh::process_option(int ch, const char* arg)
{
switch (ch) {
case 's':
m_shell = atf::fs::path(arg);
break;
default:
UNREACHABLE;
}
}
int
atf_sh::main(void)
{
if (m_argc < 1)
throw atf::application::usage_error("No test program provided");
const atf::fs::path script(m_argv[0]);
if (!atf::fs::exists(script))
throw std::runtime_error("The test program '" + script.str() + "' "
"does not exist");
const char** argv = construct_argv(m_shell.str(), m_argc, m_argv);
// Don't bother keeping track of the memory allocated by construct_argv:
// we are going to exec or die immediately.
const int ret = execv(m_shell.c_str(), const_cast< char** >(argv));
INV(ret == -1);
std::cerr << "Failed to execute " << m_shell.str() << ": "
<< std::strerror(errno) << "\n";
return EXIT_FAILURE;
}
int
main(int argc, char* const* argv)
{
return atf_sh().run(argc, argv);
}
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