xfstests: include NIS databases

If NIS is active on a test target system, additional password and
group file information is available via their respective databases
in NIS.  Currently, some tests assume that /etc/passwd and /etc/group
are the only places to find this information.

This patch causes both the local database and the NIS database (if
one is likely to be present) to be consulted for needed information.

Signed-off-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>

093

@@ -72,7 +72,7 @@ echo ""
 file=$testdir/$seq.file
 
 user=`grep ':all=:all=' /etc/capability | tail -1 | $AWK_PROG -F: '{print $1}'`
-uid=`grep $user /etc/passwd | $AWK_PROG -F: '{print $3}'`
+uid=`_cat_passwd | grep $user | $AWK_PROG -F: '{print $3}'`
 
 cat >$tmp.append <<EOF
 #!/bin/bash

common.attr

@@ -25,7 +25,7 @@
 #
 _acl_setup_ids()
 {
-    eval `cat /etc/passwd /etc/group | awk -F: '
+    eval `(_cat_passwd; _cat_group) | awk -F: '
       { ids[$3]=1 }
       END {
         j=1
@@ -93,7 +93,7 @@ _filter_aces()
     $AWK_PROG '
 	BEGIN {
 	    FS=":"
-	    while ( getline <"/etc/passwd" > 0 ) {
+	    while ( "_cat_passwd" | getline > 0 ) {
 		idlist[$1] = $3 
 	    }
 	}

common.quota

@@ -59,11 +59,11 @@ _require_prjquota()
 #
 _require_nobody()
 {
-    grep -q '^nobody' /etc/passwd
+    _cat_passwd | grep -q '^nobody'
-    [ $? -ne 0 ] && _notrun "/etc/passwd does not contain user nobody."
+    [ $? -ne 0 ] && _notrun "password file does not contain user nobody."
 
-    egrep -q '^no(body|group)' /etc/group
+    _cat_group | egrep -q '^no(body|group)'
-    [ $? -ne 0 ] && _notrun "/etc/group does not contain nobody/nogroup."
+    [ $? -ne 0 ] && _notrun "group file does not contain nobody/nogroup."
 }
 
 # create a file as a specific user (uid)
@@ -108,12 +108,12 @@ EOF
 
 _choose_uid()
 {
-    grep '^nobody' /etc/passwd | perl -ne '@a = split(/:/); END { printf "id=%d name=%s\n", $a[2],$a[0] }'
+    _cat_passwd | grep '^nobody' | perl -ne '@a = split(/:/); END { printf "id=%d name=%s\n", $a[2],$a[0] }'
 }
 
 _choose_gid()
 {
-    egrep '^no(body|group)' /etc/group | perl -ne '@a = split(/:/); END { printf "id=%d name=%s\n", $a[2],$a[0] }'
+    _cat_group | egrep '^no(body|group)' | perl -ne '@a = split(/:/); END { printf "id=%d name=%s\n", $a[2],$a[0] }'
 }
 
 _choose_prid()

common.rc

@@ -793,12 +793,38 @@ _require_nonexternal()
 	_notrun "External device testing in progress, skipped this test"
 }
 
+# indicate whether YP/NIS is active or not
+#
+_yp_active()
+{
+	local dn
+	dn=$(domainname 2>/dev/null)
+	test -n "${dn}" -a "${dn}" != "(none)"
+}
+
+# cat the password file
+#
+_cat_passwd()
+{
+	[ _yp_active ] && ypcat passwd
+	cat /etc/passwd
+}
+
+# cat the group file
+#
+_cat_group()
+{
+	[ _yp_active ] && ypcat group
+	cat /etc/group
+}
+export -f _yp_active _cat_passwd _cat_group
+
 # check for the fsgqa user on the machine
 #
 _require_user()
 {
     qa_user=fsgqa
-    cat /etc/passwd | grep -q $qa_user
+    _cat_passwd | grep -q $qa_user
     [ "$?" == "0" ] || _notrun "$qa_user user not defined."
 }