1 files changed, 84 insertions, 0 deletions
diff --git a/externals/breakpad/src/third_party/lss/tests/getitimer.c b/externals/breakpad/src/third_party/lss/tests/getitimer.c
new file mode 100644
index 0000000000..860538a0fb
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+++ b/externals/breakpad/src/third_party/lss/tests/getitimer.c
@@ -0,0 +1,84 @@
+/* Copyright 2022 Google LLC
+ *
+ * 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 LLC 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 "test_skel.h"
+
+int main(int argc, char *argv[]) {
+  // We need an invalid timer value. The assert()'s below should
+  // be static asserts but it is not available in older C versions.
+#define kInvalidTimer 9999
+  assert(kInvalidTimer != ITIMER_REAL);
+  assert(kInvalidTimer != ITIMER_VIRTUAL);
+  assert(kInvalidTimer != ITIMER_PROF);
+
+  // This should fail with EINVAL.
+  struct kernel_itimerval curr_itimer;
+  assert(sys_getitimer(kInvalidTimer, &curr_itimer) == -1);
+  assert(errno == EINVAL);
+
+  // Create a read-only page.
+  size_t page_size = getpagesize();
+  void* read_only_page = sys_mmap(NULL, page_size, PROT_READ,
+                                  MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+  assert(read_only_page != MAP_FAILED);
+
+  // This should fail with EFAULT.
+  assert(sys_getitimer(ITIMER_REAL,
+                       (struct kernel_itimerval*) read_only_page) == -1);
+  assert(errno == EFAULT);
+
+  // This should complete without an error.
+  assert(sys_getitimer(ITIMER_REAL, &curr_itimer) == 0);
+
+  // Set up a real time timer with very long interval and value so that
+  // we do not need to handle SIGALARM in test.
+  struct kernel_itimerval new_itimer;
+  const time_t kIntervalSec = 60 * 60 * 24 * 365;  // One year.
+  const long kIntervalUSec = 123;
+  new_itimer.it_interval.tv_sec = kIntervalSec;
+  new_itimer.it_interval.tv_usec = kIntervalUSec;
+  new_itimer.it_value = new_itimer.it_interval;
+  assert(sys_setitimer(ITIMER_REAL, &new_itimer, NULL) == 0);
+
+  assert(sys_getitimer(ITIMER_REAL, &curr_itimer) == 0);
+  assert(kernel_timeval_eq(&curr_itimer.it_interval, &new_itimer.it_interval));
+
+  // Disable timer.
+  struct kernel_itimerval empty_itimer;
+  empty_itimer.it_interval.tv_sec = 0;
+  empty_itimer.it_interval.tv_usec = 0;
+  empty_itimer.it_value = empty_itimer.it_interval;
+  assert(sys_setitimer(ITIMER_REAL, &empty_itimer, NULL) == 0);
+
+  // We should read back an empty itimer.
+  assert(sys_getitimer(ITIMER_REAL, &curr_itimer) == 0);
+  assert(kernel_itimerval_eq(&curr_itimer, &empty_itimer));
+
+  return 0;
+}