Hide home directory when chrooted or guest. From Ake Holmlund

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@25129 ec53bebd-3082-4978-b11e-865c3cabbd6b

appl/ftp/ftpd/extern.h

@@ -129,6 +129,7 @@ extern	struct sockaddr *data_dest;
 extern	int logged_in;
 extern	struct passwd *pw;
 extern	int guest;
+extern  int dochroot;
 extern	int logging;
 extern	int type;
 extern off_t file_size;

appl/ftp/ftpd/ftpcmd.y

@@ -352,8 +352,12 @@ cmd
 		}
 	| CWD CRLF check_login
 		{
-			if ($3)
-				cwd(pw->pw_dir);
+			if ($3) {
+				const char *path = pw->pw_dir;
+				if (dochroot || guest)
+					path = "/";
+				cwd(path);
+			}
 		}
 	| CWD SP pathname CRLF check_login
 		{

appl/ftp/ftpd/popen.c

@@ -73,8 +73,6 @@ RCSID("$Id$");
 static int *pids;
 static int fds;
 
-extern int dochroot;
-
 /* return path prepended with ~ftp if that file exists, otherwise
  * return path unchanged
  */