diff options
Diffstat (limited to 'unit/atf-src/atf-sh/atf-sh.cpp')
| -rw-r--r-- | unit/atf-src/atf-sh/atf-sh.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/unit/atf-src/atf-sh/atf-sh.cpp b/unit/atf-src/atf-sh/atf-sh.cpp new file mode 100644 index 0000000..9975573 --- /dev/null +++ b/unit/atf-src/atf-sh/atf-sh.cpp @@ -0,0 +1,185 @@ +// 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); +} |