Resolves: bug 248145

Bug Description: Replace ds_newinst binary with perl script
Reviewed by: nhosoi (Thanks!)
Fix Description: 1) Inf needs to be able to read the .inf file from stdin.  This is what ds_newinst.pl does currently.
2) getlogin seems not to work in all cases, so add a more robust replacement.
Platforms tested: RHEL4, FC6
Flag Day: no
Doc impact: no

ldap/admin/src/scripts/DSCreate.pm.in

@@ -596,7 +596,7 @@ sub setDefaults {
 
     if (!$inf->{General}->{SuiteSpotUserID}) {
         if ($> != 0) { # if not root, use the user's uid
-            $inf->{General}->{SuiteSpotUserID} = getlogin;
+            $inf->{General}->{SuiteSpotUserID} = getLogin;
         }
         # otherwise, the uid must be specified
     }

ldap/admin/src/scripts/Inf.pm

@@ -77,8 +77,14 @@ sub read {
 
     my $incontinuation = 0;
     my $curkey;
-    open INF, $filename or die "Error: could not open inf file $filename: $!";
-    while (<INF>) {
+    my $inffh;
+    if ($filename eq "-") {
+        $inffh = \*STDIN;
+    } else {
+        open INF, $filename or die "Error: could not open inf file $filename: $!";
+        $inffh = \*INF;
+    }
+    while (<$inffh>) {
         my $iscontinuation;
         chop; # trim trailing newline
         if (/^\s*$/) { # skip blank/empty lines
@@ -107,7 +113,9 @@ sub read {
             $incontinuation = 0;
         }
 	}
-    close INF;
+    if ($inffh ne \*STDIN) {
+        close $inffh;
+    }
 }
 
 sub section {
@@ -149,6 +157,8 @@ sub write {
         $filename = $self->{filename};
     }
 
+    return if ($filename eq "-");
+
     open INF, ">$filename" or die "Error: could not write inf file $filename: $!";
     # write General section first
     $self->writeSection('General', \*INF);

ldap/admin/src/scripts/SetupDialogs.pm.in

@@ -44,6 +44,7 @@ use DialogManager;
 use Setup;
 use Dialog;
 use Net::Domain qw(hostfqdn);
+use Util;
 
 my $welcome = new DialogYesNo (
     $EXPRESS,
@@ -136,7 +137,7 @@ sub verifyUserChoice {
         }
     }
     if ($> != 0) { # if not root, the user must be our uid
-        my $username = getlogin;
+        my $username = getLogin;
         if ($strans ne $username) {
             $self->{manager}->alert("dialog_ssuser_must_be_same", $username);
             return $DialogManager::SAME;
@@ -218,7 +219,7 @@ my $usergroup = new Dialog (
                 if ($> == 0) { # if root, use the default user
                     $username = "@defaultuser@";
                 } else { # if not root, use the user's uid
-                    $username = getlogin;
+                    $username = getLogin;
                 }
             }
             return $username;

ldap/admin/src/scripts/Util.pm.in

@@ -48,11 +48,11 @@ require Exporter;
 @EXPORT    = qw(portAvailable getAvailablePort isValidDN addSuffix getMappedEntries
                 process_maptbl check_and_add_entry getMappedEntries
                 getHashedPassword debug createInfFromConfig
-                isValidServerID isValidUser makePaths);
+                isValidServerID isValidUser makePaths getLogin);
 @EXPORT_OK = qw(portAvailable getAvailablePort isValidDN addSuffix getMappedEntries
                 process_maptbl check_and_add_entry getMappedEntries
                 getHashedPassword debug createInfFromConfig
-                isValidServerID isValidUser makePaths);
+                isValidServerID isValidUser makePaths getLogin);
 
 use strict;
 
@@ -111,6 +111,10 @@ sub isValidServerID {
     return $servid =~ /^[$validchars]+$/o;
 }
 
+sub getLogin {
+    return getlogin || (getpwuid($>))[0] || $ENV{USER} || die "Error: could not determine the current user ID: $!";
+}
+
 sub isValidUser {
     my $user = shift;
     # convert numeric uid to string
@@ -122,7 +126,7 @@ sub isValidUser {
         }
     }
     if ($> != 0) { # if not root, the user must be our uid
-        my $username = getlogin;
+        my $username = getLogin;
         if ($strans ne $username) {
             return ("dialog_ssuser_must_be_same", $username);
         }
@@ -799,8 +803,8 @@ sub createInfFromConfig {
     print $outfh "start_server= 0\n";
 
     my $suffix;
-    my $ent = $conn->search("cn=ldbm database,cn=plugins,cn=config",
-                            "one", "(objectclass=*)");
+    $ent = $conn->search("cn=ldbm database,cn=plugins,cn=config",
+                         "one", "(objectclass=*)");
     if (!$ent) {
         push @{$errs}, "error_opening_dseldif", $fname, $!;
         close $outfh;