Password prompts for MySQL adduser

[hcoop/zz_old/domtool2-proto.git] / src / client.sml

diff --git a/src/client.sml b/src/client.sml
new file mode 100644 (file)
index 0000000..863c0c0
--- /dev/null
+++ b/src/client.sml
@@ -0,0 +1,67 @@
+(* HCoop Domtool (http://hcoop.sourceforge.net/)
+ * Copyright (c) 2006, Adam Chlipala
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *)
+
+(* Code for receiving and executing configuration files *)
+
+structure Client :> CLIENT = struct
+
+datatype passwd_result =
+        Passwd of string
+       | Aborted
+       | Error
+
+fun getpass () =
+    let
+       val tty = Posix.FileSys.stdin
+       val termios = Posix.TTY.TC.getattr tty
+       val fields = Posix.TTY.fieldsOf termios
+
+       val termios' = Posix.TTY.termios {iflag = #iflag fields,
+                                         oflag = #oflag fields,
+                                         cflag = #cflag fields,
+                                         lflag = Posix.TTY.L.flags [Posix.TTY.L.clear (Posix.TTY.L.echo, #lflag fields),
+                                                                    Posix.TTY.L.echonl,
+                                                                    Posix.TTY.L.icanon],
+                                         cc = #cc fields,
+                                         ispeed = #ispeed fields,
+                                         ospeed = #ospeed fields}
+
+       fun reset () = Posix.TTY.TC.setattr (tty, Posix.TTY.TC.sanow, termios)
+    in
+       print "        Password: ";
+       TextIO.flushOut TextIO.stdOut;
+       Posix.TTY.TC.setattr (tty, Posix.TTY.TC.sanow, termios');
+       case TextIO.inputLine TextIO.stdIn of
+           NONE => (reset ();
+                    Aborted)
+         | SOME pass =>
+           (print "Confirm password: ";
+            TextIO.flushOut TextIO.stdOut;
+            case TextIO.inputLine TextIO.stdIn of
+                NONE => (reset ();
+                         Aborted)
+              | SOME pass' =>
+                (reset ();
+                 if pass = pass' then
+                     Passwd (String.substring (pass, 0, size pass - 1))
+                 else
+                     (print "Passwords don't match!\n";
+                      Error)))
+    end
+
+end