75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
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// Copyright 2010 Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <cstdlib>
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#include <cstring>
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#include <iostream>
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#include <sstream>
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static int
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print_args(int argc, char* argv[])
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{
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for (int i = 0; i < argc; i++)
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std::cout << "argv[" << i << "] = " << argv[i] << "\n";
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std::cout << "argv[" << argc << "] = NULL";
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return EXIT_SUCCESS;
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}
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static int
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return_code(int argc, char* argv[])
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{
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if (argc != 3)
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std::abort();
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std::istringstream iss(argv[2]);
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int code;
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iss >> code;
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return code;
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}
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int
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main(int argc, char* argv[])
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{
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if (argc < 2) {
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std::cerr << "Must provide a helper name\n";
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std::exit(EXIT_FAILURE);
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}
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if (std::strcmp(argv[1], "print-args") == 0) {
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return print_args(argc, argv);
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} else if (std::strcmp(argv[1], "return-code") == 0) {
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return return_code(argc, argv);
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} else {
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std::cerr << "Unknown helper\n";
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return EXIT_FAILURE;
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}
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}
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