Support 64-bit bit mask operations in svc_getreqset()

fd_mask is defined as a long int.  On 64-bit platforms, longs
are 64 bits wide, so bit mask operations like ffs() do not
work as expected.

Glibc 2.3 and earlier also had this bug.

See:

  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=413450

Reported-by: Jens-Uwe Mozdzen <jmozdzen@nde.de
Fix-by: Jay Lan <jlan@sgi.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/svc.c b/src/svc.c
index cc65e6a..b4a63d0 100644
--- a/src/svc.c
+++ b/src/svc.c
@@ -615,7 +615,7 @@ svc_getreqset (readfds)
   maskp = readfds->fds_bits;
   for (sock = 0; sock < FD_SETSIZE; sock += NFDBITS)
     {
-      for (mask = *maskp++; (bit = ffs (mask)) != 0; mask ^= (1 << (bit - 1)))
+      for (mask = *maskp++; (bit = ffsl(mask)) != 0; mask ^= (1L << (bit - 1)))
 	{
 	  /* sock has input waiting */
 	  fd = sock + bit - 1;