1 // Copyright 2010 The Kyua Authors.
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are
6 // met:
7 //
8 // * Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer.
10 // * Redistributions in binary form must reproduce the above copyright
11 // notice, this list of conditions and the following disclaimer in the
12 // documentation and/or other materials provided with the distribution.
13 // * Neither the name of Google Inc. nor the names of its contributors
14 // may be used to endorse or promote products derived from this software
15 // without specific prior written permission.
16 //
17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29 #include <cstdlib>
30 #include <cstring>
31 #include <iostream>
32 #include <sstream>
33
34
35 static int
print_args(int argc,char * argv[])36 print_args(int argc, char* argv[])
37 {
38 for (int i = 0; i < argc; i++)
39 std::cout << "argv[" << i << "] = " << argv[i] << "\n";
40 std::cout << "argv[" << argc << "] = NULL";
41 return EXIT_SUCCESS;
42 }
43
44
45 static int
return_code(int argc,char * argv[])46 return_code(int argc, char* argv[])
47 {
48 if (argc != 3)
49 std::abort();
50
51 std::istringstream iss(argv[2]);
52 int code;
53 iss >> code;
54 return code;
55 }
56
57
58 int
main(int argc,char * argv[])59 main(int argc, char* argv[])
60 {
61 if (argc < 2) {
62 std::cerr << "Must provide a helper name\n";
63 std::exit(EXIT_FAILURE);
64 }
65
66 if (std::strcmp(argv[1], "print-args") == 0) {
67 return print_args(argc, argv);
68 } else if (std::strcmp(argv[1], "return-code") == 0) {
69 return return_code(argc, argv);
70 } else {
71 std::cerr << "Unknown helper\n";
72 return EXIT_FAILURE;
73 }
74 }
75