1 files changed, 14 insertions, 0 deletions

diff --git a/nacl/curvecp/portparse.c b/nacl/curvecp/portparse.c
new file mode 100644
index 00000000..37e4caca
--- /dev/null
+++ b/nacl/curvecp/portparse.c
@@ -0,0 +1,14 @@
+#include "portparse.h"
+
+int portparse(unsigned char *y,const char *x)
+{
+  long long d = 0;
+  long long j;
+  for (j = 0;j < 5 && x[j] >= '0' && x[j] <= '9';++j)
+    d = d * 10 + (x[j] - '0');
+  if (j == 0) return 0;
+  if (x[j]) return 0;
+  y[0] = d >> 8;
+  y[1] = d;
+  return 1;
+}