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-rw-r--r--gmtime.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/gmtime.c b/gmtime.c
new file mode 100644
index 0000000..6b120b5
--- /dev/null
+++ b/gmtime.c
@@ -0,0 +1,60 @@
+/* See LICENSE file for copyright and license details. */
+#include "libsimple.h"
+#include <sys/timex.h>
+#ifndef TEST
+
+
+int
+libsimple_gmtime(struct tm *tm, struct timespec *ts)
+{
+ struct timex timex;
+ int r;
+
+ memset(&timex, 0, sizeof(timex));
+ timex.status = ADJ_NANO;
+ r = adjtimex(&timex);
+ if (r == -1)
+ return -1;
+ if (ts) {
+ ts->tv_sec = timex.time.tv_sec;
+ ts->tv_nsec = timex.time.tv_usec;
+ }
+
+ if (timex.time.tv_sec % (24 * 60 * 60) == 0) {
+ if (r == TIME_INS) {
+ timex.time.tv_sec -= 1;
+ if (!gmtime_r(&timex.time.tv_sec, tm))
+ return -1;
+ tm->tm_sec += 1;
+ return 1;
+ } else if (r == TIME_DEL) {
+ timex.time.tv_sec += 1;
+ if (!gmtime_r(&timex.time.tv_sec, tm))
+ return -1;
+ } else {
+ if (!gmtime_r(&timex.time.tv_sec, tm))
+ return -1;
+ }
+ } else if (r == TIME_OOP) {
+ if (!gmtime_r(&timex.time.tv_sec, tm))
+ return -1;
+ tm->tm_sec += 1;
+ } else {
+ if (!gmtime_r(&timex.time.tv_sec, tm))
+ return -1;
+ }
+
+ return 0;
+}
+
+
+#else
+#include "test.h"
+
+int
+main(void)
+{
+ /* TODO test */
+}
+
+#endif