use correct type for NOFID (sunos)

src/cmd/9pserve.c

diff --git a/src/cmd/9pserve.c b/src/cmd/9pserve.c
index a1f6851..3ffdf23 100644
--- a/src/cmd/9pserve.c
+++ b/src/cmd/9pserve.c
@@ -79,7 +79,7 @@
 int verbose = 0;
 int logging = 0;
 int msize = 8192;
-int xafid = NOFID;
+u32int xafid = NOFID;
 int attached;
 int versioned;
 

src/cmd/srv.c

diff --git a/src/cmd/srv.c b/src/cmd/srv.c
index 0ae458c..ebeca32 100644
--- a/src/cmd/srv.c
+++ b/src/cmd/srv.c
@@ -10,7 +10,7 @@
 int fd;
 int msize;
 int doauth;
-int afid = NOFID;
+u32int afid = NOFID;
 extern char *post9parg;	/* clumsy hack */
 void xauth(void);
 AuthInfo* xauth_proxy(AuthGetkey *getkey, char *fmt, ...);