Add a general user interface API. This is designed to replace things

like des_read_password and friends (backward compatibility functions
using this new API are provided).  The purpose is to remove prompting
functions from the DES code section as well as provide for prompting
through dialog boxes in a window system and the like.

16 files changed, 1811 insertions, 13 deletions

diff --git a/crypto/Makefile.ssl b/crypto/Makefile.ssl
index 0f522b4acc..3533ad8d3d 100644
--- a/crypto/Makefile.ssl
+++ b/crypto/Makefile.ssl
@@ -30,7 +30,7 @@ SDIRS=	md2 md5 sha mdc2 hmac ripemd \
 	des rc2 rc4 rc5 idea bf cast \
 	bn ec rsa dsa dh dso engine rijndael \
 	buffer bio stack lhash rand err objects \
-	evp asn1 pem x509 x509v3 conf txt_db pkcs7 pkcs12 comp ocsp
+	evp asn1 pem x509 x509v3 conf txt_db pkcs7 pkcs12 comp ocsp ui
 
 GENERAL=Makefile README crypto-lib.com install.com
 
diff --git a/crypto/cryptlib.c b/crypto/cryptlib.c
index 11ac630c22..5871216b0b 100644
--- a/crypto/cryptlib.c
+++ b/crypto/cryptlib.c
@@ -101,7 +101,8 @@ static const char* lock_names[CRYPTO_NUM_LOCKS] =
 	"dso",
 	"dynlock",
 	"engine",
-#if CRYPTO_NUM_LOCKS != 29
+	"ui",
+#if CRYPTO_NUM_LOCKS != 30
 # error "Inconsistency between crypto.h and cryptlib.c"
 #endif
 	};
diff --git a/crypto/crypto-lib.com b/crypto/crypto-lib.com
index 6f18e43427..7c74b8745c 100644
--- a/crypto/crypto-lib.com
+++ b/crypto/crypto-lib.com
@@ -91,7 +91,7 @@ $ ENCRYPT_TYPES = "Basic,MD2,MD4,MD5,SHA,MDC2,HMAC,RIPEMD,"+ -
 		  "BN,EC,RSA,DSA,DH,DSO,ENGINE,RIJNDAEL,"+ -
 		  "BUFFER,BIO,STACK,LHASH,RAND,ERR,OBJECTS,"+ -
 		  "EVP,EVP_2,ASN1,ASN1_2,PEM,X509,X509V3,"+ -
-		  "CONF,TXT_DB,PKCS7,PKCS12,COMP,OCSP"
+		  "CONF,TXT_DB,PKCS7,PKCS12,COMP,OCSP,UI"
 $ ENCRYPT_PROGRAMS = "DES,PKCS7"
 $!
 $! Check To Make Sure We Have Valid Command Line Parameters.
@@ -269,6 +269,8 @@ $ LIB_COMP = "comp_lib,"+ -
 	"c_rle,c_zlib"
 $ LIB_OCSP = "ocsp_asn,ocsp_ext,ocsp_ht,ocsp_lib,ocsp_cl,"+ -
 	"ocsp_srv,ocsp_prn,ocsp_vfy,ocsp_err"
+$ LIB_UI_COMPAT = "ui_compat"
+$ LIB_UI = "ui_er,ui_lib,ui_openssl,"+LIB_UI_COMPAT
 $!
 $! Setup exceptional compilations
 $!
diff --git a/crypto/crypto.h b/crypto/crypto.h
index af678a7489..c54f471290 100644
--- a/crypto/crypto.h
+++ b/crypto/crypto.h
@@ -124,7 +124,8 @@ extern "C" {
 #define	CRYPTO_LOCK_DSO			26
 #define	CRYPTO_LOCK_DYNLOCK		27
 #define	CRYPTO_LOCK_ENGINE		28
-#define	CRYPTO_NUM_LOCKS		29
+#define	CRYPTO_LOCK_UI			29
+#define	CRYPTO_NUM_LOCKS		30
 
 #define CRYPTO_LOCK		1
 #define CRYPTO_UNLOCK		2
diff --git a/crypto/des/Makefile.ssl b/crypto/des/Makefile.ssl
index 5658172583..f197fd788e 100644
--- a/crypto/des/Makefile.ssl
+++ b/crypto/des/Makefile.ssl
@@ -40,8 +40,8 @@ LIBOBJ= set_key.o  ecb_enc.o  cbc_enc.o \
 	ecb3_enc.o cfb64enc.o cfb64ede.o cfb_enc.o  ofb64ede.o \
 	enc_read.o enc_writ.o ofb64enc.o \
 	ofb_enc.o  str2key.o  pcbc_enc.o qud_cksm.o rand_key.o \
-	${DES_ENC} read2pwd.o \
-	fcrypt.o xcbc_enc.o read_pwd.o rpc_enc.o  cbc_cksm.o \
+	${DES_ENC} \
+	fcrypt.o xcbc_enc.o rpc_enc.o  cbc_cksm.o \
 	ede_cbcm_enc.o
 
 SRC= $(LIBSRC)
@@ -194,8 +194,11 @@ qud_cksm.o: ../../include/openssl/opensslconf.h des_locl.h qud_cksm.c
 rand_key.o: ../../include/openssl/des.h ../../include/openssl/e_os2.h
 rand_key.o: ../../include/openssl/opensslconf.h ../../include/openssl/rand.h
 rand_key.o: rand_key.c
-read2pwd.o: ../../include/openssl/des.h ../../include/openssl/e_os2.h
-read2pwd.o: ../../include/openssl/opensslconf.h des_locl.h read2pwd.c
+read2pwd.o: ../../include/openssl/crypto.h ../../include/openssl/des.h
+read2pwd.o: ../../include/openssl/e_os2.h ../../include/openssl/opensslconf.h
+read2pwd.o: ../../include/openssl/opensslv.h ../../include/openssl/safestack.h
+read2pwd.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
+read2pwd.o: ../../include/openssl/ui.h des_locl.h read2pwd.c
 read_pwd.o: ../../e_os.h ../../include/openssl/bio.h
 read_pwd.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
 read_pwd.o: ../../include/openssl/des.h ../../include/openssl/e_os2.h
diff --git a/crypto/err/err.h b/crypto/err/err.h
index 07c8527832..1de4620632 100644
--- a/crypto/err/err.h
+++ b/crypto/err/err.h
@@ -129,6 +129,7 @@ typedef struct err_state_st
 #define ERR_LIB_DSO		37
 #define ERR_LIB_ENGINE		38
 #define ERR_LIB_OCSP            39
+#define ERR_LIB_UI              40
 
 #define ERR_LIB_USER		128
 
@@ -155,6 +156,7 @@ typedef struct err_state_st
 #define DSOerr(f,r) ERR_PUT_error(ERR_LIB_DSO,(f),(r),__FILE__,__LINE__)
 #define ENGINEerr(f,r) ERR_PUT_error(ERR_LIB_ENGINE,(f),(r),__FILE__,__LINE__)
 #define OCSPerr(f,r) ERR_PUT_error(ERR_LIB_OCSP,(f),(r),__FILE__,__LINE__)
+#define UIerr(f,r) ERR_PUT_error(ERR_LIB_UI,(f),(r),__FILE__,__LINE__)
 
 /* Borland C seems too stupid to be able to shift and do longs in
  * the pre-processor :-( */
@@ -204,6 +206,7 @@ typedef struct err_state_st
 #define ERR_R_DSO_LIB	ERR_LIB_DSO      /* 37 */
 #define ERR_R_ENGINE_LIB ERR_LIB_ENGINE  /* 38 */
 #define ERR_R_OCSP_LIB  ERR_LIB_OCSP     /* 39 */
+#define ERR_R_UI_LIB    ERR_LIB_UI       /* 40 */
 
 #define ERR_R_NESTED_ASN1_ERROR			58
 #define ERR_R_BAD_ASN1_OBJECT_HEADER		59
diff --git a/crypto/err/openssl.ec b/crypto/err/openssl.ec
index 97c12302bb..84059b6744 100644
--- a/crypto/err/openssl.ec
+++ b/crypto/err/openssl.ec
@@ -26,6 +26,7 @@ L RAND		crypto/rand/rand.h		crypto/rand/rand_err.c
 L DSO		crypto/dso/dso.h		crypto/dso/dso_err.c
 L ENGINE	crypto/engine/engine.h		crypto/engine/engine_err.c
 L OCSP		crypto/ocsp/ocsp.h		crypto/ocsp/ocsp_err.c
+L UI		crypto/ui/ui.h			crypto/ui/ui_err.c
 
 # additional header files to be scanned for function names
 L NONE		crypto/x509/x509_vfy.h		NONE
diff --git a/crypto/evp/evp_key.c b/crypto/evp/evp_key.c
index 26cdcdf195..91738a273f 100644
--- a/crypto/evp/evp_key.c
+++ b/crypto/evp/evp_key.c
@@ -61,6 +61,7 @@
 #include <openssl/x509.h>
 #include <openssl/objects.h>
 #include <openssl/evp.h>
+#include <openssl/ui.h>
 
 /* should be init to zeros. */
 static char prompt_string[80];
@@ -86,13 +87,21 @@ char *EVP_get_pw_prompt(void)
  * this function will fail */
 int EVP_read_pw_string(char *buf, int len, const char *prompt, int verify)
 	{
-#ifndef OPENSSL_NO_DES
+	int ret;
+	char buff[BUFSIZ];
+	UI *ui;
+
 	if ((prompt == NULL) && (prompt_string[0] != '\0'))
 		prompt=prompt_string;
-	return(des_read_pw_string(buf,len,prompt,verify));
-#else
-	return -1;
-#endif
+	ui = UI_new();
+	UI_add_input_string(ui,prompt,0,buf,0,(len>=BUFSIZ)?BUFSIZ-1:len);
+	if (verify)
+		UI_add_verify_string(ui,prompt,0,
+			buff,0,(len>=BUFSIZ)?BUFSIZ-1:len,buf);
+	ret = UI_process(ui);
+	UI_free(ui);
+	memset(buff,0,BUFSIZ);
+	return ret;
 	}
 
 int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md, 
diff --git a/crypto/stack/safestack.h b/crypto/stack/safestack.h
index fe77eeaa18..777b9dd361 100644
--- a/crypto/stack/safestack.h
+++ b/crypto/stack/safestack.h
@@ -744,6 +744,26 @@ STACK_OF(type) \
 #define sk_SXNETID_pop(st) SKM_sk_pop(SXNETID, (st))
 #define sk_SXNETID_sort(st) SKM_sk_sort(SXNETID, (st))
 
+#define sk_UI_STRING_new(st) SKM_sk_new(UI_STRING, (st))
+#define sk_UI_STRING_new_null() SKM_sk_new_null(UI_STRING)
+#define sk_UI_STRING_free(st) SKM_sk_free(UI_STRING, (st))
+#define sk_UI_STRING_num(st) SKM_sk_num(UI_STRING, (st))
+#define sk_UI_STRING_value(st, i) SKM_sk_value(UI_STRING, (st), (i))
+#define sk_UI_STRING_set(st, i, val) SKM_sk_set(UI_STRING, (st), (i), (val))
+#define sk_UI_STRING_zero(st) SKM_sk_zero(UI_STRING, (st))
+#define sk_UI_STRING_push(st, val) SKM_sk_push(UI_STRING, (st), (val))
+#define sk_UI_STRING_unshift(st, val) SKM_sk_unshift(UI_STRING, (st), (val))
+#define sk_UI_STRING_find(st, val) SKM_sk_find(UI_STRING, (st), (val))
+#define sk_UI_STRING_delete(st, i) SKM_sk_delete(UI_STRING, (st), (i))
+#define sk_UI_STRING_delete_ptr(st, ptr) SKM_sk_delete_ptr(UI_STRING, (st), (ptr))
+#define sk_UI_STRING_insert(st, val, i) SKM_sk_insert(UI_STRING, (st), (val), (i))
+#define sk_UI_STRING_set_cmp_func(st, cmp) SKM_sk_set_cmp_func(UI_STRING, (st), (cmp))
+#define sk_UI_STRING_dup(st) SKM_sk_dup(UI_STRING, st)
+#define sk_UI_STRING_pop_free(st, free_func) SKM_sk_pop_free(UI_STRING, (st), (free_func))
+#define sk_UI_STRING_shift(st) SKM_sk_shift(UI_STRING, (st))
+#define sk_UI_STRING_pop(st) SKM_sk_pop(UI_STRING, (st))
+#define sk_UI_STRING_sort(st) SKM_sk_sort(UI_STRING, (st))
+
 #define sk_X509_new(st) SKM_sk_new(X509, (st))
 #define sk_X509_new_null() SKM_sk_new_null(X509)
 #define sk_X509_free(st) SKM_sk_free(X509, (st))
diff --git a/crypto/ui/Makefile.ssl b/crypto/ui/Makefile.ssl
new file mode 100644
index 0000000000..21221555f4
--- /dev/null
+++ b/crypto/ui/Makefile.ssl
@@ -0,0 +1,109 @@
+#
+# OpenSSL/crypto/ui/Makefile
+#
+
+DIR=	ui
+TOP=	../..
+CC=	cc
+INCLUDES= -I.. -I$(TOP) -I../../include
+CFLAG=-g
+INSTALL_PREFIX=
+OPENSSLDIR=     /usr/local/ssl
+INSTALLTOP=/usr/local/ssl
+MAKE=		make -f Makefile.ssl
+MAKEDEPPROG=	makedepend
+MAKEDEPEND=	$(TOP)/util/domd $(TOP) -MD $(MAKEDEPPROG)
+MAKEFILE=	Makefile.ssl
+AR=		ar r
+
+CFLAGS= $(INCLUDES) $(CFLAG)
+
+GENERAL=Makefile
+TEST= uitest.c
+APPS=
+
+COMPATSRC= ui_compat.c
+COMPATOBJ= ui_compat.o
+
+LIB=$(TOP)/libcrypto.a
+LIBSRC= ui_err.c ui_lib.c ui_openssl.c $(COMPATSRC)
+LIBOBJ= ui_err.o ui_lib.o ui_openssl.o $(COMPATOBJ)
+
+SRC= $(LIBSRC)
+
+EXHEADER= ui.h
+HEADER=	$(EXHEADER) ui_locl.h
+
+ALL=    $(GENERAL) $(SRC) $(HEADER)
+
+top:
+	(cd ../..; $(MAKE) DIRS=crypto SDIRS=$(DIR) sub_all)
+
+all:	lib
+
+lib:	$(LIBOBJ)
+	$(AR) $(LIB) $(LIBOBJ)
+	$(RANLIB) $(LIB)
+	@touch lib
+
+files:
+	$(PERL) $(TOP)/util/files.pl Makefile.ssl >> $(TOP)/MINFO
+
+links:
+	@$(TOP)/util/point.sh Makefile.ssl Makefile
+	@$(PERL) $(TOP)/util/mklink.pl ../../include/openssl $(EXHEADER)
+	@$(PERL) $(TOP)/util/mklink.pl ../../test $(TEST)
+	@$(PERL) $(TOP)/util/mklink.pl ../../apps $(APPS)
+
+install:
+	@for i in $(EXHEADER) ; \
+	do  \
+	(cp $$i $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i; \
+	chmod 644 $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i ); \
+	done;
+
+tags:
+	ctags $(SRC)
+
+tests:
+
+lint:
+	lint -DLINT $(INCLUDES) $(SRC)>fluff
+
+depend:
+	$(MAKEDEPEND) $(INCLUDES) $(DEPFLAG) $(PROGS) $(LIBSRC)
+
+dclean:
+	$(PERL) -pe 'if (/^# DO NOT DELETE THIS LINE/) {print; exit(0);}' $(MAKEFILE) >Makefile.new
+	mv -f Makefile.new $(MAKEFILE)
+
+clean:
+	rm -f *.o */*.o *.obj lib tags core .pure .nfs* *.old *.bak fluff
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+ui_compat.o: ../../include/openssl/crypto.h ../../include/openssl/des.h
+ui_compat.o: ../../include/openssl/e_os2.h ../../include/openssl/opensslconf.h
+ui_compat.o: ../../include/openssl/opensslv.h ../../include/openssl/safestack.h
+ui_compat.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
+ui_compat.o: ../../include/openssl/ui.h ui_compat.c
+ui_err.o: ../../include/openssl/bio.h ../../include/openssl/crypto.h
+ui_err.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
+ui_err.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
+ui_err.o: ../../include/openssl/opensslv.h ../../include/openssl/safestack.h
+ui_err.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
+ui_err.o: ../../include/openssl/ui.h ui_err.c
+ui_lib.o: ../../include/openssl/bio.h ../../include/openssl/crypto.h
+ui_lib.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
+ui_lib.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
+ui_lib.o: ../../include/openssl/opensslv.h ../../include/openssl/safestack.h
+ui_lib.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
+ui_lib.o: ../../include/openssl/ui.h ui_lib.c ui_locl.h
+ui_openssl.o: ../../e_os.h ../../include/openssl/bio.h
+ui_openssl.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
+ui_openssl.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
+ui_openssl.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
+ui_openssl.o: ../../include/openssl/opensslv.h
+ui_openssl.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
+ui_openssl.o: ../../include/openssl/symhacks.h ../../include/openssl/ui.h
+ui_openssl.o: ../cryptlib.h ui_locl.h ui_openssl.c
diff --git a/crypto/ui/ui.h b/crypto/ui/ui.h
new file mode 100644
index 0000000000..9a03e8a9ec
--- /dev/null
+++ b/crypto/ui/ui.h
@@ -0,0 +1,257 @@
+/* crypto/ui/ui.h -*- mode:C; c-file-style: "eay" -*- */
+/* Written by Richard Levitte (levitte@stacken.kth.se) for the OpenSSL
+ * project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2000 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#ifndef HEADER_UI_H
+#define HEADER_UI_H
+
+#include <openssl/crypto.h>
+#include <openssl/safestack.h>
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/* The UI type is a holder for a specific user interface session.  It can
+   contain an illimited number of informational or error strings as well
+   as things to prompt for, both passwords (noecho mode) and others (echo
+   mode), and verification of the same.  All of these are called strings,
+   and are further described below. */
+typedef struct ui_st UI;
+
+/* All instances of UI have a reference to a method structure, which is a
+   ordered vector of functions that implement the lower level things to do.
+   There is an instruction on the implementation further down, in the section
+   for method implementors. */
+typedef struct ui_method_st UI_METHOD;
+
+
+/* All the following functions return -1 or NULL on error.  When everything is
+   fine, they return 0, a positive value or a non-NULL pointer, all depending
+   on their purpose. */
+
+/* Creators and destructor.   */
+UI *UI_new(void);
+UI *UI_new_method(const UI_METHOD *method);
+void UI_free(UI *ui);
+
+/* The following functions are used to add strings to be printed and prompt
+   strings to prompt for data.  The names are UI_{add,dup}_<function>_string,
+   with the following meanings:
+	add	add a text or prompt string.  The pointers given to these
+		functions are used verbatim, no copying is done.
+	dup	make a copy of the text or prompt string, then add the copy
+		to the collection of strings in the user interface.
+	<function>
+		The function is a name for the functionality that the given
+		string shall be used for.  It can be one of:
+			input	use the string as data prompt.
+			verify	use the string as verification prompt.  This
+				is used to verify a previous input.
+			info	use the string for informational output.
+			error	use the string for error output.
+   Honestly, there's currently no difference between info and error for the
+   moment.
+
+   All of the functions in this group take a UI and a string.  The input and
+   verify addition functions also take an echo flag, a buffer for the result
+   to end up with, a minimum input size and a maximum input size (the result
+   buffer MUST be large enough to be able to contain the maximum number of
+   characters).  Additionally, the verify addition functions takes another
+   buffer to compare the result against.
+
+   On success, the all return an index of the added information.  That index
+   is usefull when retrieving results with UI_get0_result(). */
+int UI_add_input_string(UI *ui, const char *prompt, int echo_p,
+	char *result_buf, int minsize, int maxsize);
+int UI_dup_input_string(UI *ui, const char *prompt, int echo_p,
+	char *result_buf, int minsize, int maxsize);
+int UI_add_verify_string(UI *ui, const char *prompt, int echo_p,
+	char *result_buf, int minsize, int maxsize, const char *test_buf);
+int UI_dup_verify_string(UI *ui, const char *prompt, int echo_p,
+	char *result_buf, int minsize, int maxsize, const char *test_buf);
+int UI_add_info_string(UI *ui, const char *text);
+int UI_dup_info_string(UI *ui, const char *text);
+int UI_add_error_string(UI *ui, const char *text);
+int UI_dup_error_string(UI *ui, const char *text);
+
+/* Return the result associated with a prompt given with the index i. */
+const char *UI_get0_result(UI *ui, int i);
+
+/* When all strings have been added, process the whole thing. */
+int UI_process(UI *ui);
+
+/* Some methods may use extra data */
+#define UI_set_app_data(s,arg)         UI_set_ex_data(s,0,arg)
+#define UI_get_app_data(s)             UI_get_ex_data(s,0)
+int UI_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+	CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
+int UI_set_ex_data(UI *r,int idx,void *arg);
+void *UI_get_ex_data(UI *r, int idx);
+
+/* Use specific methods instead of the built-in one */
+void UI_set_default_method(const UI_METHOD *meth);
+const UI_METHOD *UI_get_default_method(void);
+const UI_METHOD *UI_get_method(UI *ui);
+const UI_METHOD *UI_set_method(UI *ui, const UI_METHOD *meth);
+
+/* The method with all the built-in thingies */
+UI_METHOD *UI_OpenSSL(void);
+
+
+/* ---------- For method writers ---------- */
+/* A method contains a number of functions that implement the low level
+   of the User Interface.  The functions are:
+
+	an opener	This function starts a session, maybe by opening
+			a channel to a tty, or by opening a window.
+	a writer	This function is called to write a given string,
+			maybe to the tty, maybe as a field label in a
+			window.
+	a reader	This function is called to read a given prompt,
+			maybe from the tty, maybe from a field in a
+			window.  Note that it's called wth all string
+			structures, not only the prompt ones, so it must
+			check such things itself.
+	a closer	This function closes the session, maybe by closing
+			the channel to the tty, or closing the window.
+
+   The way this is used, the opener is first called, then the writer for all
+   strings, then the reader for all strings and finally the closer.  Note that
+   if you want to prompt from a terminal or other command line interface, the
+   best is to have the reader also write the prompts instead of having the
+   writer do it.
+   All method functions take a UI as argument.  Additionally, the writer and
+   the reader take a UI_STRING. */
+
+/* The UI_STRING type is the data structure that contains all the needed info
+   about a string or a prompt, including test data for a verification prompt.
+*/
+DECLARE_STACK_OF(UI_STRING)
+typedef struct ui_string_st UI_STRING;
+
+/* The different types of strings that are currently supported.
+   This is only needed by method authors. */
+enum UI_string_types
+	{
+	UI_NONE=0,
+	UI_STRING_ECHO,		/* Prompt for a string */
+	UI_STRING_NOECHO,	/* Prompt for a hidden string */
+	UI_VERIFY_ECHO,		/* Prompt for a string and verify */
+	UI_VERIFY_NOECHO,	/* Prompt for a hidden string and verify */
+	UI_INFO,		/* Send info to the user */
+	UI_ERROR		/* Send an error message to the user */
+	};
+
+/* Create and manipulate methods */
+UI_METHOD *UI_create_method(void);
+int UI_method_set_opener(UI_METHOD *method, int (*opener)(UI *ui));
+int UI_method_set_writer(UI_METHOD *method, int (*writer)(UI *ui, UI_STRING *uis));
+int UI_method_set_reader(UI_METHOD *method, int (*reader)(UI *ui, UI_STRING *uis));
+int UI_method_set_closer(UI_METHOD *method, int (*closer)(UI *ui));
+int (*UI_method_get_opener(UI_METHOD *method))(UI*);
+int (*UI_method_get_writer(UI_METHOD *method))(UI*,UI_STRING*);
+int (*UI_method_get_reader(UI_METHOD *method))(UI*,UI_STRING*);
+int (*UI_method_get_closer(UI_METHOD *method))(UI*);
+
+/* The following functions are helpers for method writers to access relevant
+   data from a UI_STRING. */
+
+/* Return type type of the UI_STRING */
+enum UI_string_types UI_get_string_type(UI_STRING *uis);
+/* Return the actual string to output (the prompt, info or error) */
+const char *UI_get0_output_string(UI_STRING *uis);
+/* Return the result of a prompt */
+const char *UI_get0_result_string(UI_STRING *uis);
+/* Return the string to test the result against.  Only useful with verifies. */
+const char *UI_get0_test_string(UI_STRING *uis);
+/* Return the required minimum size of the result */
+int UI_get_result_minsize(UI_STRING *uis);
+/* Return the required maximum size of the result */
+int UI_get_result_maxsize(UI_STRING *uis);
+/* Set the result of a UI_STRING. */
+int UI_set_result(UI_STRING *uis, char *result);
+
+
+/* BEGIN ERROR CODES */
+/* The following lines are auto generated by the script mkerr.pl. Any changes
+ * made after this point may be overwritten when the script is next run.
+ */
+void ERR_load_UI_strings(void);
+
+/* Error codes for the UI functions. */
+
+/* Function codes. */
+#define UI_F_GENERAL_ALLOCATE_STRING			 100
+#define UI_F_UI_DUP_ERROR_STRING			 101
+#define UI_F_UI_DUP_INFO_STRING				 102
+#define UI_F_UI_DUP_INPUT_STRING			 103
+#define UI_F_UI_DUP_VERIFY_STRING			 106
+#define UI_F_UI_GET0_RESULT				 107
+#define UI_F_UI_NEW_METHOD				 104
+#define UI_F_UI_SET_RESULT				 105
+
+/* Reason codes. */
+#define UI_R_INDEX_TOO_LARGE				 102
+#define UI_R_INDEX_TOO_SMALL				 103
+#define UI_R_RESULT_TOO_LARGE				 100
+#define UI_R_RESULT_TOO_SMALL				 101
+
+#ifdef  __cplusplus
+}
+#endif
+#endif
diff --git a/crypto/ui/ui_compat.c b/crypto/ui/ui_compat.c
new file mode 100644
index 0000000000..44392d70c2
--- /dev/null
+++ b/crypto/ui/ui_compat.c
@@ -0,0 +1,97 @@
+/* crypto/ui/ui_compat.c */ /* This was previously crypto/des/read2pwd.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <openssl/des.h>
+#include <openssl/ui.h>
+
+int des_read_password(des_cblock *key, const char *prompt, int verify)
+	{
+	int ok;
+	char buf[BUFSIZ],buff[BUFSIZ];
+	UI *ui;
+
+	ui = UI_new();
+	UI_add_input_string(ui,prompt,0,buf,0,BUFSIZ-1);
+	if (verify)
+		UI_add_verify_string(ui,prompt,0,buff,0,BUFSIZ-1,buf);
+	if ((ok=UI_process(ui)) == 0)
+		des_string_to_key(buf,key);
+	UI_free(ui);
+	memset(buf,0,BUFSIZ);
+	memset(buff,0,BUFSIZ);
+	return(ok);
+	}
+
+int des_read_2passwords(des_cblock *key1, des_cblock *key2, const char *prompt,
+	     int verify)
+	{
+	int ok;
+	char buf[BUFSIZ],buff[BUFSIZ];
+	UI *ui;
+
+	ui = UI_new();
+	UI_add_input_string(ui,prompt,0,buf,0,BUFSIZ-1);
+	if (verify)
+		UI_add_verify_string(ui,prompt,0,buff,0,BUFSIZ-1,buf);
+	if ((ok=UI_process(ui)) == 0)
+		des_string_to_2keys(buf,key1,key2);
+	UI_free(ui);
+	memset(buf,0,BUFSIZ);
+	memset(buff,0,BUFSIZ);
+	return(ok);
+	}
diff --git a/crypto/ui/ui_err.c b/crypto/ui/ui_err.c
new file mode 100644
index 0000000000..ca50be6be4
--- /dev/null
+++ b/crypto/ui/ui_err.c
@@ -0,0 +1,104 @@
+/* crypto/ui/ui_err.c */
+/* ====================================================================
+ * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+/* NOTE: this file was auto generated by the mkerr.pl script: any changes
+ * made to it will be overwritten when the script next updates this file,
+ * only reason strings will be preserved.
+ */
+
+#include <stdio.h>
+#include <openssl/err.h>
+#include <openssl/ui.h>
+
+/* BEGIN ERROR CODES */
+#ifndef OPENSSL_NO_ERR
+static ERR_STRING_DATA UI_str_functs[]=
+	{
+{ERR_PACK(0,UI_F_GENERAL_ALLOCATE_STRING,0),	"GENERAL_ALLOCATE_STRING"},
+{ERR_PACK(0,UI_F_UI_DUP_ERROR_STRING,0),	"UI_dup_error_string"},
+{ERR_PACK(0,UI_F_UI_DUP_INFO_STRING,0),	"UI_dup_info_string"},
+{ERR_PACK(0,UI_F_UI_DUP_INPUT_STRING,0),	"UI_dup_input_string"},
+{ERR_PACK(0,UI_F_UI_DUP_VERIFY_STRING,0),	"UI_dup_verify_string"},
+{ERR_PACK(0,UI_F_UI_GET0_RESULT,0),	"UI_get0_result"},
+{ERR_PACK(0,UI_F_UI_NEW_METHOD,0),	"UI_new_method"},
+{ERR_PACK(0,UI_F_UI_S