1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
// Copyright 2010 The Kyua Authors.
// All rights reserved.
//
// 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.
// * Neither the name of Google Inc. nor the names of its contributors
// may 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 "utils/signals/misc.hpp"
extern "C" {
#include <signal.h>
#include <unistd.h>
}
#include <cstdlib>
#include <atf-c++.hpp>
#include "utils/defs.hpp"
#include "utils/fs/path.hpp"
#include "utils/process/child.ipp"
#include "utils/process/status.hpp"
#include "utils/signals/exceptions.hpp"
namespace fs = utils::fs;
namespace process = utils::process;
namespace signals = utils::signals;
namespace {
static void program_reset_raise(void) UTILS_NORETURN;
/// Body of a subprocess that tests the signals::reset function.
///
/// This function programs a signal to be ignored, then uses signal::reset to
/// bring it back to its default handler and then delivers the signal to self.
/// The default behavior of the signal is for the process to die, so this
/// function should never return correctly (and thus the child process should
/// always die due to a signal if all goes well).
static void
program_reset_raise(void)
{
struct ::sigaction sa;
sa.sa_handler = SIG_IGN;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
if (::sigaction(SIGUSR1, &sa, NULL) == -1)
std::exit(EXIT_FAILURE);
signals::reset(SIGUSR1);
::kill(::getpid(), SIGUSR1);
// Should not be reached, but we do not assert this condition because we
// want to exit cleanly if the signal does not abort our execution to let
// the parent easily know what happened.
std::exit(EXIT_SUCCESS);
}
/// Body of a subprocess that executes the signals::reset_all function.
///
/// The process exits with success if the function worked, or with a failure if
/// an error is reported. No signals are tested.
static void
run_reset_all(void)
{
const bool ok = signals::reset_all();
std::exit(ok ? EXIT_SUCCESS : EXIT_FAILURE);
}
} // anonymous namespace
ATF_TEST_CASE_WITHOUT_HEAD(reset__ok);
ATF_TEST_CASE_BODY(reset__ok)
{
std::auto_ptr< process::child > child = process::child::fork_files(
program_reset_raise, fs::path("/dev/stdout"), fs::path("/dev/stderr"));
process::status status = child->wait();
ATF_REQUIRE(status.signaled());
ATF_REQUIRE_EQ(SIGUSR1, status.termsig());
}
ATF_TEST_CASE_WITHOUT_HEAD(reset__invalid);
ATF_TEST_CASE_BODY(reset__invalid)
{
ATF_REQUIRE_THROW(signals::system_error, signals::reset(-1));
}
ATF_TEST_CASE_WITHOUT_HEAD(reset_all);
ATF_TEST_CASE_BODY(reset_all)
{
std::auto_ptr< process::child > child = process::child::fork_files(
run_reset_all, fs::path("/dev/stdout"), fs::path("/dev/stderr"));
process::status status = child->wait();
ATF_REQUIRE(status.exited());
ATF_REQUIRE_EQ(EXIT_SUCCESS, status.exitstatus());
}
ATF_INIT_TEST_CASES(tcs)
{
ATF_ADD_TEST_CASE(tcs, reset__ok);
ATF_ADD_TEST_CASE(tcs, reset__invalid);
ATF_ADD_TEST_CASE(tcs, reset_all);
}
|
