Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/x509v3/v3_utl.c

Index: openssl/crypto/x509v3/v3_utl.c
diff --git a/openssl/crypto/x509v3/v3_utl.c b/openssl/crypto/x509v3/v3_utl.c
deleted file mode 100644
index 87cfceb4bbf13b813ada0ccfda28c2f9ba340c2c..0000000000000000000000000000000000000000
--- a/openssl/crypto/x509v3/v3_utl.c
+++ /dev/null
@@ -1,874 +0,0 @@
-/* v3_utl.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project.
- */
-/* ====================================================================
- * Copyright (c) 1999-2003 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
- *    licensing@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).
- *
- */
-/* X509 v3 extension utilities */
-
-
-#include <stdio.h>
-#include <ctype.h>
-#include "cryptlib.h"
-#include <openssl/conf.h>
-#include <openssl/x509v3.h>
-#include <openssl/bn.h>
-
-static char *strip_spaces(char *name);
-static int sk_strcmp(const char * const *a, const char * const *b);
-static STACK_OF(OPENSSL_STRING) *get_email(X509_NAME *name, GENERAL_NAMES *gens);
-static void str_free(OPENSSL_STRING str);
-static int append_ia5(STACK_OF(OPENSSL_STRING) **sk, ASN1_IA5STRING *email);
-
-static int ipv4_from_asc(unsigned char *v4, const char *in);
-static int ipv6_from_asc(unsigned char *v6, const char *in);
-static int ipv6_cb(const char *elem, int len, void *usr);
-static int ipv6_hex(unsigned char *out, const char *in, int inlen);
-
-/* Add a CONF_VALUE name value pair to stack */
-
-int X509V3_add_value(const char *name, const char *value,
-						STACK_OF(CONF_VALUE) **extlist)
-{
-	CONF_VALUE *vtmp = NULL;
-	char *tname = NULL, *tvalue = NULL;
-	if(name && !(tname = BUF_strdup(name))) goto err;
-	if(value && !(tvalue = BUF_strdup(value))) goto err;
-	if(!(vtmp = (CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE)))) goto err;
-	if(!*extlist && !(*extlist = sk_CONF_VALUE_new_null())) goto err;
-	vtmp->section = NULL;
-	vtmp->name = tname;
-	vtmp->value = tvalue;
-	if(!sk_CONF_VALUE_push(*extlist, vtmp)) goto err;
-	return 1;
-	err:
-	X509V3err(X509V3_F_X509V3_ADD_VALUE,ERR_R_MALLOC_FAILURE);
-	if(vtmp) OPENSSL_free(vtmp);
-	if(tname) OPENSSL_free(tname);
-	if(tvalue) OPENSSL_free(tvalue);
-	return 0;
-}
-
-int X509V3_add_value_uchar(const char *name, const unsigned char *value,
-			   STACK_OF(CONF_VALUE) **extlist)
-    {
-    return X509V3_add_value(name,(const char *)value,extlist);
-    }
-
-/* Free function for STACK_OF(CONF_VALUE) */
-
-void X509V3_conf_free(CONF_VALUE *conf)
-{
-	if(!conf) return;
-	if(conf->name) OPENSSL_free(conf->name);
-	if(conf->value) OPENSSL_free(conf->value);
-	if(conf->section) OPENSSL_free(conf->section);
-	OPENSSL_free(conf);
-}
-
-int X509V3_add_value_bool(const char *name, int asn1_bool,
-						STACK_OF(CONF_VALUE) **extlist)
-{
-	if(asn1_bool) return X509V3_add_value(name, "TRUE", extlist);
-	return X509V3_add_value(name, "FALSE", extlist);
-}
-
-int X509V3_add_value_bool_nf(char *name, int asn1_bool,
-						STACK_OF(CONF_VALUE) **extlist)
-{
-	if(asn1_bool) return X509V3_add_value(name, "TRUE", extlist);
-	return 1;
-}
-
-
-char *i2s_ASN1_ENUMERATED(X509V3_EXT_METHOD *method, ASN1_ENUMERATED *a)
-{
-	BIGNUM *bntmp = NULL;
-	char *strtmp = NULL;
-	if(!a) return NULL;
-	if(!(bntmp = ASN1_ENUMERATED_to_BN(a, NULL)) ||
-	    !(strtmp = BN_bn2dec(bntmp)) )
-		X509V3err(X509V3_F_I2S_ASN1_ENUMERATED,ERR_R_MALLOC_FAILURE);
-	BN_free(bntmp);
-	return strtmp;
-}
-
-char *i2s_ASN1_INTEGER(X509V3_EXT_METHOD *method, ASN1_INTEGER *a)
-{
-	BIGNUM *bntmp = NULL;
-	char *strtmp = NULL;
-	if(!a) return NULL;
-	if(!(bntmp = ASN1_INTEGER_to_BN(a, NULL)) ||
-	    !(strtmp = BN_bn2dec(bntmp)) )
-		X509V3err(X509V3_F_I2S_ASN1_INTEGER,ERR_R_MALLOC_FAILURE);
-	BN_free(bntmp);
-	return strtmp;
-}
-
-ASN1_INTEGER *s2i_ASN1_INTEGER(X509V3_EXT_METHOD *method, char *value)
-{
-	BIGNUM *bn = NULL;
-	ASN1_INTEGER *aint;
-	int isneg, ishex;
-	int ret;
-	if (!value) {
-		X509V3err(X509V3_F_S2I_ASN1_INTEGER,X509V3_R_INVALID_NULL_VALUE);
-		return 0;
-	}
-	bn = BN_new();
-	if (value[0] == '-') {
-		value++;
-		isneg = 1;
-	} else isneg = 0;
-
-	if (value[0] == '0' && ((value[1] == 'x') || (value[1] == 'X'))) {
-		value += 2;
-		ishex = 1;
-	} else ishex = 0;
-
-	if (ishex) ret = BN_hex2bn(&bn, value);
-	else ret = BN_dec2bn(&bn, value);
-
-	if (!ret || value[ret]) {
-		BN_free(bn);
-		X509V3err(X509V3_F_S2I_ASN1_INTEGER,X509V3_R_BN_DEC2BN_ERROR);
-		return 0;
-	}
-
-	if (isneg && BN_is_zero(bn)) isneg = 0;
-
-	aint = BN_to_ASN1_INTEGER(bn, NULL);
-	BN_free(bn);
-	if (!aint) {
-		X509V3err(X509V3_F_S2I_ASN1_INTEGER,X509V3_R_BN_TO_ASN1_INTEGER_ERROR);
-		return 0;
-	}
-	if (isneg) aint->type |= V_ASN1_NEG;
-	return aint;
-}
-
-int X509V3_add_value_int(const char *name, ASN1_INTEGER *aint,
-	     STACK_OF(CONF_VALUE) **extlist)
-{
-	char *strtmp;
-	int ret;
-	if(!aint) return 1;
-	if(!(strtmp = i2s_ASN1_INTEGER(NULL, aint))) return 0;
-	ret = X509V3_add_value(name, strtmp, extlist);
-	OPENSSL_free(strtmp);
-	return ret;
-}
-
-int X509V3_get_value_bool(CONF_VALUE *value, int *asn1_bool)
-{
-	char *btmp;
-	if(!(btmp = value->value)) goto err;
-	if(!strcmp(btmp, "TRUE") || !strcmp(btmp, "true")
-		 || !strcmp(btmp, "Y") || !strcmp(btmp, "y")
-		|| !strcmp(btmp, "YES") || !strcmp(btmp, "yes")) {
-		*asn1_bool = 0xff;
-		return 1;
-	} else if(!strcmp(btmp, "FALSE") || !strcmp(btmp, "false")
-		 || !strcmp(btmp, "N") || !strcmp(btmp, "n")
-		|| !strcmp(btmp, "NO") || !strcmp(btmp, "no")) {
-		*asn1_bool = 0;
-		return 1;
-	}
-	err:
-	X509V3err(X509V3_F_X509V3_GET_VALUE_BOOL,X509V3_R_INVALID_BOOLEAN_STRING);
-	X509V3_conf_err(value);
-	return 0;
-}
-
-int X509V3_get_value_int(CONF_VALUE *value, ASN1_INTEGER **aint)
-{
-	ASN1_INTEGER *itmp;
-	if(!(itmp = s2i_ASN1_INTEGER(NULL, value->value))) {
-		X509V3_conf_err(value);
-		return 0;
-	}
-	*aint = itmp;
-	return 1;
-}
-
-#define HDR_NAME	1
-#define HDR_VALUE	2
-
-/*#define DEBUG*/
-
-STACK_OF(CONF_VALUE) *X509V3_parse_list(const char *line)
-{
-	char *p, *q, c;
-	char *ntmp, *vtmp;
-	STACK_OF(CONF_VALUE) *values = NULL;
-	char *linebuf;
-	int state;
-	/* We are going to modify the line so copy it first */
-	linebuf = BUF_strdup(line);
-	state = HDR_NAME;
-	ntmp = NULL;
-	/* Go through all characters */
-	for(p = linebuf, q = linebuf; (c = *p) && (c!='\r') && (c!='\n'); p++) {
-
-		switch(state) {
-			case HDR_NAME:
-			if(c == ':') {
-				state = HDR_VALUE;
-				*p = 0;
-				ntmp = strip_spaces(q);
-				if(!ntmp) {
-					X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_NAME);
-					goto err;
-				}
-				q = p + 1;
-			} else if(c == ',') {
-				*p = 0;
-				ntmp = strip_spaces(q);
-				q = p + 1;
-#if 0
-				printf("%s\n", ntmp);
-#endif
-				if(!ntmp) {
-					X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_NAME);
-					goto err;
-				}
-				X509V3_add_value(ntmp, NULL, &values);
-			}
-			break ;
-
-			case HDR_VALUE:
-			if(c == ',') {
-				state = HDR_NAME;
-				*p = 0;
-				vtmp = strip_spaces(q);
-#if 0
-				printf("%s\n", ntmp);
-#endif
-				if(!vtmp) {
-					X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_VALUE);
-					goto err;
-				}
-				X509V3_add_value(ntmp, vtmp, &values);
-				ntmp = NULL;
-				q = p + 1;
-			}
-
-		}
-	}
-
-	if(state == HDR_VALUE) {
-		vtmp = strip_spaces(q);
-#if 0
-		printf("%s=%s\n", ntmp, vtmp);
-#endif
-		if(!vtmp) {
-			X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_VALUE);
-			goto err;
-		}
-		X509V3_add_value(ntmp, vtmp, &values);
-	} else {
-		ntmp = strip_spaces(q);
-#if 0
-		printf("%s\n", ntmp);
-#endif
-		if(!ntmp) {
-			X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_NAME);
-			goto err;
-		}
-		X509V3_add_value(ntmp, NULL, &values);
-	}
-OPENSSL_free(linebuf);
-return values;
-
-err:
-OPENSSL_free(linebuf);
-sk_CONF_VALUE_pop_free(values, X509V3_conf_free);
-return NULL;
-
-}
-
-/* Delete leading and trailing spaces from a string */
-static char *strip_spaces(char *name)
-{
-	char *p, *q;
-	/* Skip over leading spaces */
-	p = name;
-	while(*p && isspace((unsigned char)*p)) p++;
-	if(!*p) return NULL;
-	q = p + strlen(p) - 1;
-	while((q != p) && isspace((unsigned char)*q)) q--;
-	if(p != q) q[1] = 0;
-	if(!*p) return NULL;
-	return p;
-}
-
-/* hex string utilities */
-
-/* Given a buffer of length 'len' return a OPENSSL_malloc'ed string with its
- * hex representation
- * @@@ (Contents of buffer are always kept in ASCII, also on EBCDIC machines)
- */
-
-char *hex_to_string(const unsigned char *buffer, long len)
-{
-	char *tmp, *q;
-	const unsigned char *p;
-	int i;
-	static const char hexdig[] = "0123456789ABCDEF";
-	if(!buffer || !len) return NULL;
-	if(!(tmp = OPENSSL_malloc(len * 3 + 1))) {
-		X509V3err(X509V3_F_HEX_TO_STRING,ERR_R_MALLOC_FAILURE);
-		return NULL;
-	}
-	q = tmp;
-	for(i = 0, p = buffer; i < len; i++,p++) {
-		*q++ = hexdig[(*p >> 4) & 0xf];
-		*q++ = hexdig[*p & 0xf];
-		*q++ = ':';
-	}
-	q[-1] = 0;
-#ifdef CHARSET_EBCDIC
-	ebcdic2ascii(tmp, tmp, q - tmp - 1);
-#endif
-
-	return tmp;
-}
-
-/* Give a string of hex digits convert to
- * a buffer
- */
-
-unsigned char *string_to_hex(const char *str, long *len)
-{
-	unsigned char *hexbuf, *q;
-	unsigned char ch, cl, *p;
-	if(!str) {
-		X509V3err(X509V3_F_STRING_TO_HEX,X509V3_R_INVALID_NULL_ARGUMENT);
-		return NULL;
-	}
-	if(!(hexbuf = OPENSSL_malloc(strlen(str) >> 1))) goto err;
-	for(p = (unsigned char *)str, q = hexbuf; *p;) {
-		ch = *p++;
-#ifdef CHARSET_EBCDIC
-		ch = os_toebcdic[ch];
-#endif
-		if(ch == ':') continue;
-		cl = *p++;
-#ifdef CHARSET_EBCDIC
-		cl = os_toebcdic[cl];
-#endif
-		if(!cl) {
-			X509V3err(X509V3_F_STRING_TO_HEX,X509V3_R_ODD_NUMBER_OF_DIGITS);
-			OPENSSL_free(hexbuf);
-			return NULL;
-		}
-		if(isupper(ch)) ch = tolower(ch);
-		if(isupper(cl)) cl = tolower(cl);
-
-		if((ch >= '0') && (ch <= '9')) ch -= '0';
-		else if ((ch >= 'a') && (ch <= 'f')) ch -= 'a' - 10;
-		else goto badhex;
-
-		if((cl >= '0') && (cl <= '9')) cl -= '0';
-		else if ((cl >= 'a') && (cl <= 'f')) cl -= 'a' - 10;
-		else goto badhex;
-
-		*q++ = (ch << 4) | cl;
-	}
-
-	if(len) *len = q - hexbuf;
-
-	return hexbuf;
-
-	err:
-	if(hexbuf) OPENSSL_free(hexbuf);
-	X509V3err(X509V3_F_STRING_TO_HEX,ERR_R_MALLOC_FAILURE);
-	return NULL;
-
-	badhex:
-	OPENSSL_free(hexbuf);
-	X509V3err(X509V3_F_STRING_TO_HEX,X509V3_R_ILLEGAL_HEX_DIGIT);
-	return NULL;
-
-}
-
-/* V2I name comparison function: returns zero if 'name' matches
- * cmp or cmp.*
- */
-
-int name_cmp(const char *name, const char *cmp)
-{
-	int len, ret;
-	char c;
-	len = strlen(cmp);
-	if((ret = strncmp(name, cmp, len))) return ret;
-	c = name[len];
-	if(!c || (c=='.')) return 0;
-	return 1;
-}
-
-static int sk_strcmp(const char * const *a, const char * const *b)
-{
-	return strcmp(*a, *b);
-}
-
-STACK_OF(OPENSSL_STRING) *X509_get1_email(X509 *x)
-{
-	GENERAL_NAMES *gens;
-	STACK_OF(OPENSSL_STRING) *ret;
-
-	gens = X509_get_ext_d2i(x, NID_subject_alt_name, NULL, NULL);
-	ret = get_email(X509_get_subject_name(x), gens);
-	sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
-	return ret;
-}
-
-STACK_OF(OPENSSL_STRING) *X509_get1_ocsp(X509 *x)
-{
-	AUTHORITY_INFO_ACCESS *info;
-	STACK_OF(OPENSSL_STRING) *ret = NULL;
-	int i;
-
-	info = X509_get_ext_d2i(x, NID_info_access, NULL, NULL);
-	if (!info)
-		return NULL;
-	for (i = 0; i < sk_ACCESS_DESCRIPTION_num(info); i++)
-		{
-		ACCESS_DESCRIPTION *ad = sk_ACCESS_DESCRIPTION_value(info, i);
-		if (OBJ_obj2nid(ad->method) == NID_ad_OCSP)
-			{
-			if (ad->location->type == GEN_URI)
-				{
-				if (!append_ia5(&ret, ad->location->d.uniformResourceIdentifier))
-					break;
-				}
-			}
-		}
-	AUTHORITY_INFO_ACCESS_free(info);
-	return ret;
-}
-
-STACK_OF(OPENSSL_STRING) *X509_REQ_get1_email(X509_REQ *x)
-{
-	GENERAL_NAMES *gens;
-	STACK_OF(X509_EXTENSION) *exts;
-	STACK_OF(OPENSSL_STRING) *ret;
-
-	exts = X509_REQ_get_extensions(x);
-	gens = X509V3_get_d2i(exts, NID_subject_alt_name, NULL, NULL);
-	ret = get_email(X509_REQ_get_subject_name(x), gens);
-	sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
-	sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
-	return ret;
-}
-
-
-static STACK_OF(OPENSSL_STRING) *get_email(X509_NAME *name, GENERAL_NAMES *gens)
-{
-	STACK_OF(OPENSSL_STRING) *ret = NULL;
-	X509_NAME_ENTRY *ne;
-	ASN1_IA5STRING *email;
-	GENERAL_NAME *gen;
-	int i;
-	/* Now add any email address(es) to STACK */
-	i = -1;
-	/* First supplied X509_NAME */
-	while((i = X509_NAME_get_index_by_NID(name,
-					 NID_pkcs9_emailAddress, i)) >= 0) {
-		ne = X509_NAME_get_entry(name, i);
-		email = X509_NAME_ENTRY_get_data(ne);
-		if(!append_ia5(&ret, email)) return NULL;
-	}
-	for(i = 0; i < sk_GENERAL_NAME_num(gens); i++)
-	{
-		gen = sk_GENERAL_NAME_value(gens, i);
-		if(gen->type != GEN_EMAIL) continue;
-		if(!append_ia5(&ret, gen->d.ia5)) return NULL;
-	}
-	return ret;
-}
-
-static void str_free(OPENSSL_STRING str)
-{
-	OPENSSL_free(str);
-}
-
-static int append_ia5(STACK_OF(OPENSSL_STRING) **sk, ASN1_IA5STRING *email)
-{
-	char *emtmp;
-	/* First some sanity checks */
-	if(email->type != V_ASN1_IA5STRING) return 1;
-	if(!email->data || !email->length) return 1;
-	if(!*sk) *sk = sk_OPENSSL_STRING_new(sk_strcmp);
-	if(!*sk) return 0;
-	/* Don't add duplicates */
-	if(sk_OPENSSL_STRING_find(*sk, (char *)email->data) != -1) return 1;
-	emtmp = BUF_strdup((char *)email->data);
-	if(!emtmp || !sk_OPENSSL_STRING_push(*sk, emtmp)) {
-		X509_email_free(*sk);
-		*sk = NULL;
-		return 0;
-	}
-	return 1;
-}
-
-void X509_email_free(STACK_OF(OPENSSL_STRING) *sk)
-{
-	sk_OPENSSL_STRING_pop_free(sk, str_free);
-}
-
-/* Convert IP addresses both IPv4 and IPv6 into an 
- * OCTET STRING compatible with RFC3280.
- */
-
-ASN1_OCTET_STRING *a2i_IPADDRESS(const char *ipasc)
-	{
-	unsigned char ipout[16];
-	ASN1_OCTET_STRING *ret;
-	int iplen;
-
-	/* If string contains a ':' assume IPv6 */
-
-	iplen = a2i_ipadd(ipout, ipasc);
-
-	if (!iplen)
-		return NULL;
-
-	ret = ASN1_OCTET_STRING_new();
-	if (!ret)
-		return NULL;
-	if (!ASN1_OCTET_STRING_set(ret, ipout, iplen))
-		{
-		ASN1_OCTET_STRING_free(ret);
-		return NULL;
-		}
-	return ret;
-	}
-
-ASN1_OCTET_STRING *a2i_IPADDRESS_NC(const char *ipasc)
-	{
-	ASN1_OCTET_STRING *ret = NULL;
-	unsigned char ipout[32];
-	char *iptmp = NULL, *p;
-	int iplen1, iplen2;
-	p = strchr(ipasc,'/');
-	if (!p)
-		return NULL;
-	iptmp = BUF_strdup(ipasc);
-	if (!iptmp)
-		return NULL;
-	p = iptmp + (p - ipasc);
-	*p++ = 0;
-
-	iplen1 = a2i_ipadd(ipout, iptmp);
-
-	if (!iplen1)
-		goto err;
-
-	iplen2 = a2i_ipadd(ipout + iplen1, p);
-
-	OPENSSL_free(iptmp);
-	iptmp = NULL;
-
-	if (!iplen2 || (iplen1 != iplen2))
-		goto err;
-
-	ret = ASN1_OCTET_STRING_new();
-	if (!ret)
-		goto err;
-	if (!ASN1_OCTET_STRING_set(ret, ipout, iplen1 + iplen2))
-		goto err;
-
-	return ret;
-
-	err:
-	if (iptmp)
-		OPENSSL_free(iptmp);
-	if (ret)
-		ASN1_OCTET_STRING_free(ret);
-	return NULL;
-	}
-	
-
-int a2i_ipadd(unsigned char *ipout, const char *ipasc)
-	{
-	/* If string contains a ':' assume IPv6 */
-
-	if (strchr(ipasc, ':'))
-		{
-		if (!ipv6_from_asc(ipout, ipasc))
-			return 0;
-		return 16;
-		}
-	else
-		{
-		if (!ipv4_from_asc(ipout, ipasc))
-			return 0;
-		return 4;
-		}
-	}
-
-static int ipv4_from_asc(unsigned char *v4, const char *in)
-	{
-	int a0, a1, a2, a3;
-	if (sscanf(in, "%d.%d.%d.%d", &a0, &a1, &a2, &a3) != 4)
-		return 0;
-	if ((a0 < 0) || (a0 > 255) || (a1 < 0) || (a1 > 255)
-		|| (a2 < 0) || (a2 > 255) || (a3 < 0) || (a3 > 255))
-		return 0;
-	v4[0] = a0;
-	v4[1] = a1;
-	v4[2] = a2;
-	v4[3] = a3;
-	return 1;
-	}
-
-typedef struct {
-		/* Temporary store for IPV6 output */
-		unsigned char tmp[16];
-		/* Total number of bytes in tmp */
-		int total;
-		/* The position of a zero (corresponding to '::') */
-		int zero_pos;
-		/* Number of zeroes */
-		int zero_cnt;
-	} IPV6_STAT;
-
-
-static int ipv6_from_asc(unsigned char *v6, const char *in)
-	{
-	IPV6_STAT v6stat;
-	v6stat.total = 0;
-	v6stat.zero_pos = -1;
-	v6stat.zero_cnt = 0;
-	/* Treat the IPv6 representation as a list of values
-	 * separated by ':'. The presence of a '::' will parse
- 	 * as one, two or three zero length elements.
-	 */
-	if (!CONF_parse_list(in, ':', 0, ipv6_cb, &v6stat))
-		return 0;
-
-	/* Now for some sanity checks */
-
-	if (v6stat.zero_pos == -1)
-		{
-		/* If no '::' must have exactly 16 bytes */
-		if (v6stat.total != 16)
-			return 0;
-		}
-	else 
-		{
-		/* If '::' must have less than 16 bytes */
-		if (v6stat.total == 16)
-			return 0;
-		/* More than three zeroes is an error */
-		if (v6stat.zero_cnt > 3)
-			return 0;
-		/* Can only have three zeroes if nothing else present */
-		else if (v6stat.zero_cnt == 3)
-			{
-			if (v6stat.total > 0)
-				return 0;
-			}
-		/* Can only have two zeroes if at start or end */
-		else if (v6stat.zero_cnt == 2)
-			{
-			if ((v6stat.zero_pos != 0)
-				&& (v6stat.zero_pos != v6stat.total))
-				return 0;
-			}
-		else 
-		/* Can only have one zero if *not* start or end */
-			{
-			if ((v6stat.zero_pos == 0)
-				|| (v6stat.zero_pos == v6stat.total))
-				return 0;
-			}
-		}
-
-	/* Format result */
-
-	if (v6stat.zero_pos >= 0)
-		{
-		/* Copy initial part */
-		memcpy(v6, v6stat.tmp, v6stat.zero_pos);
-		/* Zero middle */
-		memset(v6 + v6stat.zero_pos, 0, 16 - v6stat.total);
-		/* Copy final part */
-		if (v6stat.total != v6stat.zero_pos)
-			memcpy(v6 + v6stat.zero_pos + 16 - v6stat.total,
-				v6stat.tmp + v6stat.zero_pos,
-				v6stat.total - v6stat.zero_pos);
-		}
-	else
-		memcpy(v6, v6stat.tmp, 16);
-
-	return 1;
-	}
-
-static int ipv6_cb(const char *elem, int len, void *usr)
-	{
-	IPV6_STAT *s = usr;
-	/* Error if 16 bytes written */
-	if (s->total == 16)
-		return 0;
-	if (len == 0)
-		{
-		/* Zero length element, corresponds to '::' */
-		if (s->zero_pos == -1)
-			s->zero_pos = s->total;
-		/* If we've already got a :: its an error */
-		else if (s->zero_pos != s->total)
-			return 0;
-		s->zero_cnt++;
-		}
-	else 
-		{
-		/* If more than 4 characters could be final a.b.c.d form */
-		if (len > 4)
-			{
-			/* Need at least 4 bytes left */
-			if (s->total > 12)
-				return 0;
-			/* Must be end of string */
-			if (elem[len])
-				return 0;
-			if (!ipv4_from_asc(s->tmp + s->total, elem))
-				return 0;
-			s->total += 4;
-			}
-		else
-			{
-			if (!ipv6_hex(s->tmp + s->total, elem, len))
-				return 0;
-			s->total += 2;
-			}
-		}
-	return 1;
-	}
-
-/* Convert a string of up to 4 hex digits into the corresponding
- * IPv6 form.
- */
-
-static int ipv6_hex(unsigned char *out, const char *in, int inlen)
-	{
-	unsigned char c;
-	unsigned int num = 0;
-	if (inlen > 4)
-		return 0;
-	while(inlen--)
-		{
-		c = *in++;
-		num <<= 4;
-		if ((c >= '0') && (c <= '9'))
-			num |= c - '0';
-		else if ((c >= 'A') && (c <= 'F'))
-			num |= c - 'A' + 10;
-		else if ((c >= 'a') && (c <= 'f'))
-			num |=  c - 'a' + 10;
-		else
-			return 0;
-		}
-	out[0] = num >> 8;
-	out[1] = num & 0xff;
-	return 1;
-	}
-
-
-int X509V3_NAME_from_section(X509_NAME *nm, STACK_OF(CONF_VALUE)*dn_sk,
-						unsigned long chtype)
-	{
-	CONF_VALUE *v;
-	int i, mval;
-	char *p, *type;
-	if (!nm)
-		return 0;
-
-	for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
-		{
-		v=sk_CONF_VALUE_value(dn_sk,i);
-		type=v->name;
-		/* Skip past any leading X. X: X, etc to allow for
-		 * multiple instances 
-		 */
-		for(p = type; *p ; p++) 
-#ifndef CHARSET_EBCDIC
-			if ((*p == ':') || (*p == ',') || (*p == '.'))
-#else
-			if ((*p == os_toascii[':']) || (*p == os_toascii[',']) || (*p == os_toascii['.']))
-#endif
-				{
-				p++;
-				if(*p) type = p;
-				break;
-				}
-#ifndef CHARSET_EBCDIC
-		if (*type == '+')
-#else
-		if (*type == os_toascii['+'])
-#endif
-			{
-			mval = -1;
-			type++;
-			}
-		else
-			mval = 0;
-		if (!X509_NAME_add_entry_by_txt(nm,type, chtype,
-				(unsigned char *) v->value,-1,-1,mval))
-					return 0;
-
-		}
-	return 1;
-	}