diff --git a/configure.ac b/configure.ac
index 12098e2bda41..78a1215f849d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_INIT([cifs-utils],[6.6.1],[linux-cifs@vger.kernel.org],[cifs-utils],[https://wiki.samba.org/index.php/LinuxCIFS_utils])
-AC_CONFIG_SRCDIR([replace.h])
+AC_CONFIG_SRCDIR([data_blob.h])
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_FILES([Makefile contrib/Makefile contrib/request-key.d/Makefile])
 AC_CONFIG_MACRO_DIR(aclocal)
diff --git a/replace.h b/replace.h
deleted file mode 100644
index 03d293704a2e..000000000000
--- a/replace.h
+++ /dev/null
@@ -1,674 +0,0 @@
-/*
-   Unix SMB/CIFS implementation.
-
-   macros to go along with the lib/replace/ portability layer code
-
-   Copyright (C) Andrew Tridgell 2005
-   Copyright (C) Jelmer Vernooij 2006-2008
-   Copyright (C) Jeremy Allison 2007.
-
-     ** NOTE! The following LGPL license applies to the replace
-     ** library. This does NOT imply that all of Samba is released
-     ** under the LGPL
-
-   This library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 3 of the License, or (at your option) any later version.
-
-   This library 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
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with this library; if not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifndef _LIBREPLACE_REPLACE_H
-#define _LIBREPLACE_REPLACE_H
-
-#include "config.h"
-
-#ifdef HAVE_STANDARDS_H
-#include <standards.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <errno.h>
-
-#if defined(_MSC_VER) || defined(__MINGW32__)
-#include "win32_replace.h"
-#endif
-
-
-#ifdef HAVE_STDINT_H
-#include <stdint.h>
-/* force off HAVE_INTTYPES_H so that roken doesn't try to include both,
-   which causes a warning storm on irix */
-#undef HAVE_INTTYPES_H
-#elif HAVE_INTTYPES_H
-#define __STDC_FORMAT_MACROS
-#include <inttypes.h>
-#endif
-
-#ifndef __PRI64_PREFIX
-# if __WORDSIZE == 64
-#  define __PRI64_PREFIX	"l"
-# else
-#  define __PRI64_PREFIX	"ll"
-# endif
-#endif
-
-/* Decimal notation.  */
-#ifndef PRId8
-# define PRId8		"d"
-#endif
-#ifndef PRId16
-# define PRId16		"d"
-#endif
-#ifndef PRId32
-# define PRId32		"d"
-#endif
-#ifndef PRId64
-# define PRId64		__PRI64_PREFIX "d"
-#endif
-
-#ifndef PRIi8
-# define PRIi8		"i"
-#endif
-#ifndef PRIi8
-# define PRIi16		"i"
-#endif
-#ifndef PRIi8
-# define PRIi32		"i"
-#endif
-#ifndef PRIi8
-# define PRIi64		__PRI64_PREFIX "i"
-#endif
-
-#ifndef PRIu8
-# define PRIu8		"u"
-#endif
-#ifndef PRIu16
-# define PRIu16		"u"
-#endif
-#ifndef PRIu32
-# define PRIu32		"u"
-#endif
-#ifndef PRIu64
-# define PRIu64		__PRI64_PREFIX "u"
-#endif
-
-#ifdef HAVE_STRING_H
-#include <string.h>
-#endif
-
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-
-#if STDC_HEADERS
-#include <stdlib.h>
-#include <stddef.h>
-#endif
-
-#ifndef HAVE_STRERROR
-extern char *sys_errlist[];
-#define strerror(i) sys_errlist[i]
-#endif
-
-#ifndef HAVE_STRDUP
-#define strdup rep_strdup
-char *rep_strdup(const char *s);
-#endif
-
-#ifndef HAVE_MEMMEM
-#define memmem rep_memmem
-void *rep_memmem(const void *haystack, size_t haystacklen,
-		 const void *needle, size_t needlelen);
-#endif
-
-#ifndef HAVE_MKTIME
-#define mktime rep_mktime
-/* prototype is in "system/time.h" */
-#endif
-
-#ifndef HAVE_TIMEGM
-#define timegm rep_timegm
-/* prototype is in "system/time.h" */
-#endif
-
-#ifndef HAVE_UTIME
-#define utime rep_utime
-/* prototype is in "system/time.h" */
-#endif
-
-#ifndef HAVE_UTIMES
-#define utimes rep_utimes
-/* prototype is in "system/time.h" */
-#endif
-
-#if !HAVE_DECL_ENVIRON
-#ifdef __APPLE__
-#include <crt_externs.h>
-#define environ (*_NSGetEnviron())
-#else
-extern char **environ;
-#endif
-#endif
-
-#ifndef HAVE_SETENV
-#define setenv rep_setenv
-int rep_setenv(const char *name, const char *value, int overwrite);
-#else
-#ifndef HAVE_SETENV_DECL
-int setenv(const char *name, const char *value, int overwrite);
-#endif
-#endif
-
-#ifndef HAVE_UNSETENV
-#define unsetenv rep_unsetenv
-int rep_unsetenv(const char *name);
-#endif
-
-#ifndef HAVE_SETEUID
-#define seteuid rep_seteuid
-int rep_seteuid(uid_t);
-#endif
-
-#ifndef HAVE_SETEGID
-#define setegid rep_setegid
-int rep_setegid(gid_t);
-#endif
-
-#if (defined(USE_SETRESUID) && !defined(HAVE_SETRESUID_DECL))
-/* stupid glibc */
-int setresuid(uid_t ruid, uid_t euid, uid_t suid);
-#endif
-#if (defined(USE_SETRESUID) && !defined(HAVE_SETRESGID_DECL))
-int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
-#endif
-
-#ifndef HAVE_CHOWN
-#define chown rep_chown
-int rep_chown(const char *path, uid_t uid, gid_t gid);
-#endif
-
-#ifndef HAVE_CHROOT
-#define chroot rep_chroot
-int rep_chroot(const char *dirname);
-#endif
-
-#ifndef HAVE_LINK
-#define link rep_link
-int rep_link(const char *oldpath, const char *newpath);
-#endif
-
-#ifndef HAVE_READLINK
-#define readlink rep_readlink
-ssize_t rep_readlink(const char *path, char *buf, size_t bufsize);
-#endif
-
-#ifndef HAVE_SYMLINK
-#define symlink rep_symlink
-int rep_symlink(const char *oldpath, const char *newpath);
-#endif
-
-#ifndef HAVE_REALPATH
-#define realpath rep_realpath
-char *rep_realpath(const char *path, char *resolved_path);
-#endif
-
-#ifndef HAVE_LCHOWN
-#define lchown rep_lchown
-int rep_lchown(const char *fname,uid_t uid,gid_t gid);
-#endif
-
-#ifdef HAVE_UNIX_H
-#include <unix.h>
-#endif
-
-#ifndef HAVE_SETLINEBUF
-#define setlinebuf rep_setlinebuf
-void rep_setlinebuf(FILE *);
-#endif
-
-#ifndef HAVE_STRCASESTR
-#define strcasestr rep_strcasestr
-char *rep_strcasestr(const char *haystack, const char *needle);
-#endif
-
-#ifndef HAVE_STRTOLL
-#define strtoll rep_strtoll
-long long int rep_strtoll(const char *str, char **endptr, int base);
-#endif
-
-#ifndef HAVE_STRTOULL
-#define strtoull rep_strtoull
-unsigned long long int rep_strtoull(const char *str, char **endptr, int base);
-#endif
-
-#ifndef HAVE_FTRUNCATE
-#define ftruncate rep_ftruncate
-int rep_ftruncate(int,off_t);
-#endif
-
-#ifndef HAVE_INITGROUPS
-#define initgroups rep_initgroups
-int rep_initgroups(char *name, gid_t id);
-#endif
-
-#ifndef HAVE_DLERROR
-#define dlerror rep_dlerror
-char *rep_dlerror(void);
-#endif
-
-#ifndef HAVE_DLOPEN
-#define dlopen rep_dlopen
-#ifdef DLOPEN_TAKES_UNSIGNED_FLAGS
-void *rep_dlopen(const char *name, unsigned int flags);
-#else
-void *rep_dlopen(const char *name, int flags);
-#endif
-#endif
-
-#ifndef HAVE_DLSYM
-#define dlsym rep_dlsym
-void *rep_dlsym(void *handle, const char *symbol);
-#endif
-
-#ifndef HAVE_DLCLOSE
-#define dlclose rep_dlclose
-int rep_dlclose(void *handle);
-#endif
-
-#ifndef HAVE_SOCKETPAIR
-#define socketpair rep_socketpair
-/* prototype is in system/network.h */
-#endif
-
-#ifndef PRINTF_ATTRIBUTE
-#if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
-/** Use gcc attribute to check printf fns.  a1 is the 1-based index of
- * the parameter containing the format, and a2 the index of the first
- * argument. Note that some gcc 2.x versions don't handle this
- * properly **/
-#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
-#else
-#define PRINTF_ATTRIBUTE(a1, a2)
-#endif
-#endif
-
-#ifndef _DEPRECATED_
-#if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
-#define _DEPRECATED_ __attribute__ ((deprecated))
-#else
-#define _DEPRECATED_
-#endif
-#endif
-
-#ifndef HAVE_VASPRINTF
-#define vasprintf rep_vasprintf
-int rep_vasprintf(char **ptr, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
-#endif
-
-#define slprintf snprintf
-
-#ifndef HAVE_VA_COPY
-#undef va_copy
-#ifdef HAVE___VA_COPY
-#define va_copy(dest, src) __va_copy(dest, src)
-#else
-#define va_copy(dest, src) (dest) = (src)
-#endif
-#endif
-
-#ifndef HAVE_VOLATILE
-#define volatile
-#endif
-
-#ifndef HAVE_COMPARISON_FN_T
-typedef int (*comparison_fn_t)(const void *, const void *);
-#endif
-
-#ifdef REPLACE_STRPTIME
-#define strptime rep_strptime
-struct tm;
-char *rep_strptime(const char *buf, const char *format, struct tm *tm);
-#endif
-
-#ifndef HAVE_DUP2
-#define dup2 rep_dup2
-int rep_dup2(int oldfd, int newfd);
-#endif
-
-/* Load header file for dynamic linking stuff */
-#ifdef HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#ifndef RTLD_LAZY
-#define RTLD_LAZY 0
-#endif
-#ifndef RTLD_NOW
-#define RTLD_NOW 0
-#endif
-#ifndef RTLD_GLOBAL
-#define RTLD_GLOBAL 0
-#endif
-
-#ifndef HAVE_SECURE_MKSTEMP
-#define mkstemp(path) rep_mkstemp(path)
-int rep_mkstemp(char *temp);
-#endif
-
-#ifndef HAVE_MKDTEMP
-#define mkdtemp rep_mkdtemp
-char *rep_mkdtemp(char *template);
-#endif
-
-#ifndef HAVE_PREAD
-#define pread rep_pread
-ssize_t rep_pread(int __fd, void *__buf, size_t __nbytes, off_t __offset);
-#define LIBREPLACE_PREAD_REPLACED 1
-#else
-#define LIBREPLACE_PREAD_NOT_REPLACED 1
-#endif
-
-#ifndef HAVE_PWRITE
-#define pwrite rep_pwrite
-ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset);
-#define LIBREPLACE_PWRITE_REPLACED 1
-#else
-#define LIBREPLACE_PWRITE_NOT_REPLACED 1
-#endif
-
-#if !defined(HAVE_INET_NTOA) || defined(REPLACE_INET_NTOA)
-#define inet_ntoa rep_inet_ntoa
-/* prototype is in "system/network.h" */
-#endif
-
-#ifndef HAVE_INET_PTON
-#define inet_pton rep_inet_pton
-/* prototype is in "system/network.h" */
-#endif
-
-#ifndef HAVE_INET_NTOP
-#define inet_ntop rep_inet_ntop
-/* prototype is in "system/network.h" */
-#endif
-
-#ifndef HAVE_INET_ATON
-#define inet_aton rep_inet_aton
-/* prototype is in "system/network.h" */
-#endif
-
-#ifndef HAVE_CONNECT
-#define connect rep_connect
-/* prototype is in "system/network.h" */
-#endif
-
-#ifndef HAVE_GETHOSTBYNAME
-#define gethostbyname rep_gethostbyname
-/* prototype is in "system/network.h" */
-#endif
-
-#ifndef HAVE_GETIFADDRS
-#define getifaddrs rep_getifaddrs
-/* prototype is in "system/network.h" */
-#endif
-
-#ifndef HAVE_FREEIFADDRS
-#define freeifaddrs rep_freeifaddrs
-/* prototype is in "system/network.h" */
-#endif
-
-#ifdef HAVE_LIMITS_H
-#include <limits.h>
-#endif
-
-#ifdef HAVE_SYS_PARAM_H
-#include <sys/param.h>
-#endif
-
-/* The extra casts work around common compiler bugs.  */
-#define _TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
-/* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
-   It is necessary at least when t == time_t.  */
-#define _TYPE_MINIMUM(t) ((t) (_TYPE_SIGNED (t) \
-  			      ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
-#define _TYPE_MAXIMUM(t) ((t) (~ (t) 0 - _TYPE_MINIMUM (t)))
-
-#ifndef UINT16_MAX
-#define UINT16_MAX 65535
-#endif
-
-#ifndef UINT32_MAX
-#define UINT32_MAX (4294967295U)
-#endif
-
-#ifndef UINT64_MAX
-#define UINT64_MAX ((uint64_t)-1)
-#endif
-
-#ifndef CHAR_BIT
-#define CHAR_BIT 8
-#endif
-
-#ifndef INT32_MAX
-#define INT32_MAX _TYPE_MAXIMUM(int32_t)
-#endif
-
-#ifdef HAVE_STDBOOL_H
-#include <stdbool.h>
-#endif
-
-#if !defined(HAVE_BOOL)
-#ifdef HAVE__BOOL
-#define bool _Bool
-#else
-typedef int bool;
-#endif
-#endif
-
-/*
- * to prevent <rpcsvc/yp_prot.h> from doing a redefine of 'bool'
- *
- * IRIX, HPUX, MacOS 10 and Solaris need BOOL_DEFINED
- * Tru64 needs _BOOL_EXISTS
- * AIX needs _BOOL,_TRUE,_FALSE
- */
-#ifndef BOOL_DEFINED
-#define BOOL_DEFINED
-#endif
-#ifndef _BOOL_EXISTS
-#define _BOOL_EXISTS
-#endif
-#ifndef _BOOL
-#define _BOOL
-#endif
-
-#ifndef __bool_true_false_are_defined
-#define __bool_true_false_are_defined
-#endif
-
-#ifndef true
-#define true (1)
-#endif
-#ifndef false
-#define false (0)
-#endif
-
-#ifndef _TRUE
-#define _TRUE true
-#endif
-#ifndef _FALSE
-#define _FALSE false
-#endif
-
-#ifndef HAVE_FUNCTION_MACRO
-#ifdef HAVE_func_MACRO
-#define __FUNCTION__ __func__
-#else
-#define __FUNCTION__ ("")
-#endif
-#endif
-
-
-#ifndef MIN
-#define MIN(a,b) ((a)<(b)?(a):(b))
-#endif
-
-#ifndef MAX
-#define MAX(a,b) ((a)>(b)?(a):(b))
-#endif
-
-#if !defined(HAVE_VOLATILE)
-#define volatile
-#endif
-
-/**
-  this is a warning hack. The idea is to use this everywhere that we
-  get the "discarding const" warning from gcc. That doesn't actually
-  fix the problem of course, but it means that when we do get to
-  cleaning them up we can do it by searching the code for
-  discard_const.
-
-  It also means that other error types aren't as swamped by the noise
-  of hundreds of const warnings, so we are more likely to notice when
-  we get new errors.
-
-  Please only add more uses of this macro when you find it
-  _really_ hard to fix const warnings. Our aim is to eventually use
-  this function in only a very few places.
-
-  Also, please call this via the discard_const_p() macro interface, as that
-  makes the return type safe.
-*/
-#define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
-
-/** Type-safe version of discard_const */
-#define discard_const_p(type, ptr) ((type *)discard_const(ptr))
-
-#ifndef __STRING
-#define __STRING(x)    #x
-#endif
-
-#ifndef __STRINGSTRING
-#define __STRINGSTRING(x) __STRING(x)
-#endif
-
-#ifndef __LINESTR__
-#define __LINESTR__ __STRINGSTRING(__LINE__)
-#endif
-
-#ifndef __location__
-#define __location__ __FILE__ ":" __LINESTR__
-#endif
-
-/** 
- * zero a structure 
- */
-#define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
-
-/** 
- * zero a structure given a pointer to the structure 
- */
-#define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)
-
-/** 
- * zero a structure given a pointer to the structure - no zero check 
- */
-#define ZERO_STRUCTPN(x) memset((char *)(x), 0, sizeof(*(x)))
-
-/* zero an array - note that sizeof(array) must work - ie. it must not be a
-   pointer */
-#define ZERO_ARRAY(x) memset((char *)(x), 0, sizeof(x))
-
-/**
- * work out how many elements there are in a static array 
- */
-#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
-
-/** 
- * pointer difference macro 
- */
-#define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))
-
-#if MMAP_BLACKLIST
-#undef HAVE_MMAP
-#endif
-
-#ifdef __COMPAR_FN_T
-#define QSORT_CAST (__compar_fn_t)
-#endif
-
-#ifndef QSORT_CAST
-#define QSORT_CAST (int (*)(const void *, const void *))
-#endif
-
-#ifndef PATH_MAX
-#define PATH_MAX 1024
-#endif
-
-#ifndef MAX_DNS_NAME_LENGTH
-#define MAX_DNS_NAME_LENGTH 256 /* Actually 255 but +1 for terminating null. */
-#endif
-
-#ifndef HAVE_CRYPT
-char *ufc_crypt(const char *key, const char *salt);
-#define crypt ufc_crypt
-#else
-#ifdef HAVE_CRYPT_H
-#include <crypt.h>
-#endif
-#endif
-
-/* these macros gain us a few percent of speed on gcc */
-#if (__GNUC__ >= 3)
-/* the strange !! is to ensure that __builtin_expect() takes either 0 or 1
-   as its first argument */
-#ifndef likely
-#define likely(x)   __builtin_expect(!!(x), 1)
-#endif
-#ifndef unlikely
-#define unlikely(x) __builtin_expect(!!(x), 0)
-#endif
-#else
-#ifndef likely
-#define likely(x) (x)
-#endif
-#ifndef unlikely
-#define unlikely(x) (x)
-#endif
-#endif
-
-#ifndef SAFE_FREE
-#define SAFE_FREE(x) do { if ((x) != NULL) {free(x); x=NULL;} } while(0)
-#endif
-
-typedef uint32_t NTSTATUS;
-#define NT_STATUS(x) (x)
-#define NT_STATUS_V(x) (x)
-
-/* These macros unify the keyblock handling of Heimdal and MIT somewhat */
-#ifdef HAVE_KRB5_KEYBLOCK_KEYVALUE /* Heimdal */
-#define KRB5_KEY_TYPE(k)        ((k)->keytype)
-#define KRB5_KEY_LENGTH(k)      ((k)->keyvalue.length)
-#define KRB5_KEY_DATA(k)        ((k)->keyvalue.data)
-#define KRB5_KEY_DATA_CAST      void
-#else /* MIT */
-#define KRB5_KEY_TYPE(k)        ((k)->enctype)
-#define KRB5_KEY_LENGTH(k)      ((k)->length)
-#define KRB5_KEY_DATA(k)        ((k)->contents)
-#define KRB5_KEY_DATA_CAST      krb5_octet
-#endif
-
-#endif /* _LIBREPLACE_REPLACE_H */
