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diff --git a/source4/lib/samba3/smbpasswd.c b/source4/lib/samba3/smbpasswd.c
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+/*
+ Unix SMB/CIFS implementation.
+ smbpasswd file format routines
+
+ Copyright (C) Andrew Tridgell 1992-1998
+ Modified by Jeremy Allison 1995.
+ Modified by Gerald (Jerry) Carter 2000-2001
+ Copyright (C) Tim Potter 2001
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
+ Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2005
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+/*! \file lib/smbpasswd.c
+
+ The smbpasswd file is used to store encrypted passwords in a similar
+ fashion to the /etc/passwd file. The format is colon separated fields
+ with one user per line like so:
+
+ <username>:<uid>:<lanman hash>:<nt hash>:<acb info>:<last change time>
+
+ The username and uid must correspond to an entry in the /etc/passwd
+ file. The lanman and nt password hashes are 32 hex digits corresponding
+ to the 16-byte lanman and nt hashes respectively.
+
+ The password last change time is stored as a string of the format
+ LCD-<change time> where the change time is expressed as an
+
+ 'N' No password
+ 'D' Disabled
+ 'H' Homedir required
+ 'T' Temp account.
+ 'U' User account (normal)
+ 'M' MNS logon user account - what is this ?
+ 'W' Workstation account
+ 'S' Server account
+ 'L' Locked account
+ 'X' No Xpiry on password
+ 'I' Interdomain trust account
+
+*/
+
+#include "includes.h"
+#include "system/locale.h"
+#include "lib/samba3/samba3.h"
+
+/*! Convert 32 hex characters into a 16 byte array. */
+
+struct samr_Password *smbpasswd_gethexpwd(TALLOC_CTX *mem_ctx, const char *p)
+{
+ int i;
+ unsigned char lonybble, hinybble;
+ const char *hexchars = "0123456789ABCDEF";
+ const char *p1, *p2;
+ struct samr_Password *pwd = talloc(mem_ctx, struct samr_Password);
+
+ if (!p) return NULL;
+
+ for (i = 0; i < (sizeof(pwd->hash) * 2); i += 2)
+ {
+ hinybble = toupper(p[i]);
+ lonybble = toupper(p[i + 1]);
+
+ p1 = strchr_m(hexchars, hinybble);
+ p2 = strchr_m(hexchars, lonybble);
+
+ if (!p1 || !p2) {
+ return NULL;
+ }
+
+ hinybble = PTR_DIFF(p1, hexchars);
+ lonybble = PTR_DIFF(p2, hexchars);
+
+ pwd->hash[i / 2] = (hinybble << 4) | lonybble;
+ }
+ return pwd;
+}
+
+/*! Convert a 16-byte array into 32 hex characters. */
+char *smbpasswd_sethexpwd(TALLOC_CTX *mem_ctx, struct samr_Password *pwd, uint16_t acb_info)
+{
+ char *p;
+ if (pwd != NULL) {
+ int i;
+ p = talloc_array(mem_ctx, char, 33);
+ if (!p) {
+ return NULL;
+ }
+
+ for (i = 0; i < sizeof(pwd->hash); i++)
+ slprintf(&p[i*2], 3, "%02X", pwd->hash[i]);
+ } else {
+ if (acb_info & ACB_PWNOTREQ)
+ p = talloc_strdup(mem_ctx, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX");
+ else
+ p = talloc_strdup(mem_ctx, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
+ }
+ return p;
+}