Add support for suppressing different NFS versions.

[nfs-utils.git] / support / nfs / rpcmisc.c

diff --git a/support/nfs/rpcmisc.c b/support/nfs/rpcmisc.c
index 7a100c2eff618f089c1c9c0b7712bc1fde250992..c7bff40ea2fc71aaa00176d5e8940f09723599bc 100644 (file)
--- a/support/nfs/rpcmisc.c
+++ b/support/nfs/rpcmisc.c
@@ -12,7 +12,9 @@
  * as is, with no warranty expressed or implied.
  */
 
-#include "config.h"
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 
 #include <sys/types.h>
 #include <sys/ioctl.h>
@@ -53,12 +55,19 @@ rpc_init(char *name, int prog, int vers, void (*dispatch)(), int defport)
        if (getsockname(0, (struct sockaddr *) &saddr, &asize) == 0
            && saddr.sin_family == AF_INET) {
                int ssize = sizeof (int);
-               _rpcfdtype = 0;
+               int fdtype = 0;
                if (getsockopt(0, SOL_SOCKET, SO_TYPE,
-                               (char *)&_rpcfdtype, &ssize) == -1)
+                               (char *)&fdtype, &ssize) == -1)
                        xlog(L_FATAL, "getsockopt failed: %s", strerror(errno));
-               _rpcpmstart = 1;
-       } else {
+               /* inetd passes a UDP socket or a listening TCP socket.
+                * listen will fail on a connected TCP socket(passed by rsh).
+                */
+               if (!(fdtype == SOCK_STREAM && listen(0,5) == -1)) {
+                       _rpcfdtype = fdtype;
+                       _rpcpmstart = 1;
+               }
+       }
+       if (!_rpcpmstart) {
                pmap_unset(prog, vers);
                sock = RPC_ANYSOCK;
        }
@@ -66,7 +75,7 @@ rpc_init(char *name, int prog, int vers, void (*dispatch)(), int defport)
        if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_DGRAM)) {
                static SVCXPRT *last_transp = NULL;
  
-               if (_rpcfdtype == 0) {
+               if (_rpcpmstart == 0) {
                        if (last_transp
                            && (!defport || defport == last_transp->xp_port)) {
                                transp = last_transp;
@@ -96,7 +105,7 @@ rpc_init(char *name, int prog, int vers, void (*dispatch)(), int defport)
        if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_STREAM)) {
                static SVCXPRT *last_transp = NULL;
 
-               if (_rpcfdtype == 0) {
+               if (_rpcpmstart == 0) {
                        if (last_transp
                            && (!defport || defport == last_transp->xp_port)) {
                                transp = last_transp;