1 files changed, 15 insertions, 0 deletions
diff --git a/src/unistd/ftruncate.c b/src/unistd/ftruncate.c
new file mode 100644
index 0000000..e0b2f4b
--- /dev/null
+++ b/src/unistd/ftruncate.c
@@ -0,0 +1,15 @@
+#include <unistd.h>
+#include "syscall.h"
+#include "libc.h"
+
+int ftruncate(int fd, off_t length)
+{
+	if (sizeof(long) == 8)
+		return syscall2(__NR_ftruncate, fd, length);
+	else {
+		union { long long ll; long l[2]; } u = { length };
+		return syscall3(__NR_ftruncate64, fd, u.l[0], u.l[1]);
+	}
+}
+
+LFS64(ftruncate);