X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=kitten%2Fkernel%2Flinux_syscalls%2Fsettimeofday.c;fp=kitten%2Fkernel%2Flinux_syscalls%2Fsettimeofday.c;h=748e05930d5afd00d9738f7b4a411cb5464b624c;hb=66a1a4c7a9edcd7d8bc207aca093d694a6e6b5b2;hp=0000000000000000000000000000000000000000;hpb=f7cf9c19ecb0a589dd45ae0d2c91814bd3c2acc2;p=palacios.git

diff --git a/kitten/kernel/linux_syscalls/settimeofday.c b/kitten/kernel/linux_syscalls/settimeofday.c
new file mode 100644
index 0000000..748e059
--- /dev/null
+++ b/kitten/kernel/linux_syscalls/settimeofday.c
@@ -0,0 +1,34 @@
+#include <lwk/kernel.h>
+#include <lwk/time.h>
+#include <arch/uaccess.h>
+
+int
+sys_settimeofday(
+	struct timeval  __user * tv,
+	struct timezone __user * tz
+)
+{
+	struct timeval  _tv;
+	struct timezone _tz;
+
+	if (tv != NULL) {
+		if (copy_from_user(&_tv, tv, sizeof(_tv)))
+			return -EFAULT;
+
+		set_time(
+		  (_tv.tv_sec * NSEC_PER_SEC) + (_tv.tv_usec * NSEC_PER_USEC)
+		);
+	}
+
+	if (tz != NULL) {
+		if (copy_from_user(&_tz, tz, sizeof(_tz)))
+			return -EFAULT;
+
+		/* Only support setting timezone to 0 */
+		if ((_tz.tz_minuteswest != 0) || (_tz.tz_dsttime != 0))
+			return -EFAULT;
+	}
+
+	return 0;
+}
+