Add sunrpc.
diff --git a/src/libsunrpc/error.c b/src/libsunrpc/error.c
new file mode 100644
index 0000000..4c6bd5b
--- /dev/null
+++ b/src/libsunrpc/error.c
@@ -0,0 +1,37 @@
+#include <u.h>
+#include <libc.h>
+#include <thread.h>
+#include <sunrpc.h>
+
+static struct {
+ SunStatus status;
+ char *msg;
+} tab[] = {
+ SunProgUnavail, "program unavailable",
+ SunProgMismatch, "program mismatch",
+ SunProcUnavail, "procedure unavailable",
+ SunGarbageArgs, "garbage args",
+ SunSystemErr, "system error",
+ SunRpcMismatch, "rpc mismatch",
+ SunAuthBadCred, "bad auth cred",
+ SunAuthRejectedCred, "rejected auth cred",
+ SunAuthBadVerf, "bad auth verf",
+ SunAuthRejectedVerf, "rejected auth verf",
+ SunAuthTooWeak, "auth too weak",
+ SunAuthInvalidResp, "invalid auth response",
+ SunAuthFailed, "auth failed",
+};
+
+void
+sunerrstr(SunStatus status)
+{
+ int i;
+
+ for(i=0; i<nelem(tab); i++){
+ if(tab[i].status == status){
+ werrstr(tab[i].msg);
+ return;
+ }
+ }
+ werrstr("unknown sun error %d", (int)status);
+}
