1 files changed, 8 insertions, 0 deletions
diff --git a/lib/libc/socket/sockatmark.c b/lib/libc/socket/sockatmark.c
new file mode 100644
index 00000000..f7178aa0
--- /dev/null
+++ b/lib/libc/socket/sockatmark.c
@@ -0,0 +1,8 @@
+#include <syscall.h>
+#include <asm-generic/sockios.h>
+
+int sockatmark(int s)
+{
+	int arg = 0;
+	return syscall(ioctl, s, SIOCATMARK, &arg) < 0 ? -1 : arg;
+}