aboutsummaryrefslogtreecommitdiff
path: root/time
diff options
context:
space:
mode:
Diffstat (limited to 'time')
-rw-r--r--time/Makefile3
-rw-r--r--time/tst-adjtime.c44
2 files changed, 46 insertions, 1 deletions
diff --git a/time/Makefile b/time/Makefile
index 26aa835..f27a75a 100644
--- a/time/Makefile
+++ b/time/Makefile
@@ -47,7 +47,8 @@ tests := test_time clocktest tst-posixtz tst-strptime tst_wcsftime \
tst-mktime3 tst-strptime2 bug-asctime bug-asctime_r bug-mktime1 \
tst-strptime3 bug-getdate1 tst-strptime-whitespace tst-ftime \
tst-tzname tst-y2039 bug-mktime4 tst-strftime2 tst-strftime3 \
- tst-clock tst-clock2 tst-clock_nanosleep tst-cpuclock1
+ tst-clock tst-clock2 tst-clock_nanosleep tst-cpuclock1 \
+ tst-adjtime
include ../Rules
diff --git a/time/tst-adjtime.c b/time/tst-adjtime.c
new file mode 100644
index 0000000..ae2b37c
--- /dev/null
+++ b/time/tst-adjtime.c
@@ -0,0 +1,44 @@
+/* Basic tests for adjtime.
+ Copyright (C) 2020 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <sys/time.h>
+#include <stdlib.h>
+
+#include <errno.h>
+#include <support/check.h>
+
+
+static int
+do_test (void)
+{
+ /* Check if the interface allows getting the amount of time remaining
+ from any previous adjustment that has not yet been completed. This
+ is a non-privileged function of adjtime. */
+ struct timeval tv;
+ int r = adjtime (NULL, &tv);
+ if (r == -1)
+ {
+ if (errno == ENOSYS)
+ FAIL_UNSUPPORTED ("adjtime unsupported");
+ FAIL_EXIT1 ("adjtime (NULL, ...) failed: %m");
+ }
+
+ return 0;
+}
+
+#include <support/test-driver.c>