Set password and service lookups to be local (bz 447092)

rpcbind-0.1.5-nss-config.patch

@@ -0,0 +1,48 @@
+commit 77f7556878d1fe03dc3e285c97dd822db38f618c
+Author: Ulrich Drepper <drepper@redhat.com>
+Date:   Fri Jun 27 13:29:20 2008 -0400
+
+    Due to an installation mistake (somehow rpm messed up) I ended up with an passwd
+    file which didn't have a rpc entry.  This meant that during startup the
+    getpwnam() call to determine the details for user rpc caused the normal process
+    for passwd lookups to be followed.  For me this meant after looking at
+    /etc/passwd the lookup tried to use NIS.  This of course deadlocked since as
+    part of the NIS lookup rpcbind has to be contacted.
+    
+    The workaround is quite simple: use __nss_configure_lookup() to restrict
+    the lookup.
+    
+    Signed-off-by: Ulrich Drepper <drepper@redhat.com>
+    Signed-off-by: Steve Dickson <steved@redhat.com>
+
+diff --git a/src/rpcbind.c b/src/rpcbind.c
+index fb75517..550fefd 100644
+--- a/src/rpcbind.c
++++ b/src/rpcbind.c
+@@ -155,6 +155,13 @@ main(int argc, char *argv[])
+ 		fprintf(stderr, "Sorry. You are not superuser\n");
+ 		exit(1);
+ 	}
++
++	/*
++	 * Make sure we use the local service file 
++	 * for service lookkups
++	 */
++	__nss_configure_lookup("services", "files");
++
+ 	nc_handle = setnetconfig(); 	/* open netconfig file */
+ 	if (nc_handle == NULL) {
+ 		syslog(LOG_ERR, "could not read /etc/netconfig");
+@@ -212,6 +219,12 @@ main(int argc, char *argv[])
+ 		struct passwd *p;
+ 		char *id = runasdaemon ? RUN_AS : rpcbinduser;
+ 
++		/*
++		 * Make sure we use the local password file
++		 * for these lookups.
++		 */
++		__nss_configure_lookup("passwd", "files");
++
+ 		if((p = getpwnam(id)) == NULL) {
+ 			syslog(LOG_ERR, "cannot get uid of '%s': %m", id);
+ 			exit(1);

rpcbind.spec

@@ -2,7 +2,7 @@
 
 Name:           rpcbind
 Version:        0.1.5
-Release: 		2%{?dist}
+Release: 		3%{?dist}
 Summary:        Universal Addresses to RPC Program Number Mapper
 Group:          System Environment/Daemons
 License:        GPL
@@ -27,6 +27,7 @@ Obsoletes: portmap <= 4.0-65.3
 
 Patch1: rpcbind-0.1.4-iff_up.patch
 Patch2: rpcbind-0.1.5-setgid.patch
+Patch3: rpcbind-0.1.5-nss-config.patch
 
 %description
 The rpcbind utility is a server that converts RPC program numbers into
@@ -38,6 +39,7 @@ RPC calls on a server on that machine.
 
 %patch1 -p1
 %patch2 -p1
+%patch3 -p1
 
 %build
 %ifarch s390 s390x
@@ -117,7 +119,10 @@ fi
 %dir %attr(700,rpc,rpc) /var/lib/rpcbind
 
 %changelog
-* Mon Jun 23 2008 Steve Dickson <steved@redhat.com> 0.1.5-1
+* Fri Jun 27 2008 Steve Dickson <steved@redhat.com> 0.1.5-3
+- Set password and service lookups to be local (bz 447092)
+
+* Mon Jun 23 2008 Steve Dickson <steved@redhat.com> 0.1.5-2
 - rpcbind needs to downgrade to non-priviledgied group.
 
 * Mon Jun 23 2008 Steve Dickson <steved@redhat.com> 0.1.5-1