1 files changed, 23 insertions, 0 deletions
diff --git a/compat/time32/setitimer_time32.c b/compat/time32/setitimer_time32.c
new file mode 100644
index 00000000..4651dacb
--- /dev/null
+++ b/compat/time32/setitimer_time32.c
@@ -0,0 +1,23 @@
+#include "time32.h"
+#include <time.h>
+#include <sys/time.h>
+
+int __setitimer_time32(int which, const struct itimerval32 *restrict new32, struct itimerval32 *restrict old32)
+{
+	struct itimerval old;
+	int r = setitimer(which, (&(struct itimerval){
+		.it_interval.tv_sec = new32->it_interval.tv_sec,
+		.it_interval.tv_usec = new32->it_interval.tv_usec,
+		.it_value.tv_sec = new32->it_value.tv_sec,
+		.it_value.tv_usec = new32->it_value.tv_usec}), &old);
+	if (r) return r;
+	/* The above call has already committed to success by changing the
+	 * timer setting, so we can't fail on out-of-range old value.
+	 * Since these are relative times, values large enough to overflow
+	 * don't make sense anyway. */
+	old32->it_interval.tv_sec = old.it_interval.tv_sec;
+	old32->it_interval.tv_usec = old.it_interval.tv_usec;
+	old32->it_value.tv_sec = old.it_value.tv_sec;
+	old32->it_value.tv_usec = old.it_value.tv_usec;
+	return 0;
+}