use getuser instead of getenv("USER").
add portdate file.

src/cmd/secstore/portdate

diff --git a/src/cmd/secstore/portdate b/src/cmd/secstore/portdate
new file mode 100644
index 0000000..8d50496
--- /dev/null
+++ b/src/cmd/secstore/portdate
@@ -0,0 +1,9 @@
+SConn.c		2004/1225
+SConn.h		2004/1225
+aescbc.c		2004/1225
+dirls.c		2004/1225
+pak.c		2004/1225
+password.c		2004/1225
+secstore.c		2004/1225
+secstore.h		2004/1225
+util.c		2004/1225

src/cmd/secstore/secstore.c

diff --git a/src/cmd/secstore/secstore.c b/src/cmd/secstore/secstore.c
index 0a361c1..94e9ff7 100644
--- a/src/cmd/secstore/secstore.c
+++ b/src/cmd/secstore/secstore.c
@@ -490,7 +490,7 @@
 	AuthConn *c;
 
 	serve = "$auth";
-	user = getenv("USER");
+	user = getuser();
 	memset(Gflag, 0, sizeof Gflag);
 	fmtinstall('B', mpfmt);
 	fmtinstall('H', encodefmt);