Upgraded to openssl-1.0.2

1 files changed, 668 insertions, 0 deletions

diff --git a/openssl/ssl/ssl_conf.c b/openssl/ssl/ssl_conf.c
new file mode 100755
index 000000000..0ee6e4642
--- /dev/null
+++ b/openssl/ssl/ssl_conf.c
@@ -0,0 +1,668 @@
+/*
+ * ! \file ssl/ssl_conf.c \brief SSL configuration functions
+ */
+/* ====================================================================
+ * Copyright (c) 2012 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).
+ *
+ */
+
+#ifdef REF_CHECK
+# include <assert.h>
+#endif
+#include <stdio.h>
+#include "ssl_locl.h"
+#include <openssl/conf.h>
+#include <openssl/objects.h>
+#ifndef OPENSSL_NO_DH
+# include <openssl/dh.h>
+#endif
+
+/*
+ * structure holding name tables. This is used for pemitted elements in lists
+ * such as TLSv1 and single command line switches such as no_tls1
+ */
+
+typedef struct {
+    const char *name;
+    int namelen;
+    unsigned int name_flags;
+    unsigned long option_value;
+} ssl_flag_tbl;
+
+/* Sense of name is inverted e.g. "TLSv1" will clear SSL_OP_NO_TLSv1 */
+#define SSL_TFLAG_INV   0x1
+/* Flags refers to cert_flags not options */
+#define SSL_TFLAG_CERT  0x2
+/* Option can only be used for clients */
+#define SSL_TFLAG_CLIENT SSL_CONF_FLAG_CLIENT
+/* Option can only be used for servers */
+#define SSL_TFLAG_SERVER SSL_CONF_FLAG_SERVER
+#define SSL_TFLAG_BOTH (SSL_TFLAG_CLIENT|SSL_TFLAG_SERVER)
+
+#define SSL_FLAG_TBL(str, flag) \
+        {str, (int)(sizeof(str) - 1), SSL_TFLAG_BOTH, flag}
+#define SSL_FLAG_TBL_SRV(str, flag) \
+        {str, (int)(sizeof(str) - 1), SSL_TFLAG_SERVER, flag}
+#define SSL_FLAG_TBL_CLI(str, flag) \
+        {str, (int)(sizeof(str) - 1), SSL_TFLAG_CLIENT, flag}
+#define SSL_FLAG_TBL_INV(str, flag) \
+        {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_BOTH, flag}
+#define SSL_FLAG_TBL_SRV_INV(str, flag) \
+        {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_SERVER, flag}
+#define SSL_FLAG_TBL_CERT(str, flag) \
+        {str, (int)(sizeof(str) - 1), SSL_TFLAG_CERT|SSL_TFLAG_BOTH, flag}
+
+/*
+ * Opaque structure containing SSL configuration context.
+ */
+
+struct ssl_conf_ctx_st {
+    /*
+     * Various flags indicating (among other things) which options we will
+     * recognise.
+     */
+    unsigned int flags;
+    /* Prefix and length of commands */
+    char *prefix;
+    size_t prefixlen;
+    /* SSL_CTX or SSL structure to perform operations on */
+    SSL_CTX *ctx;
+    SSL *ssl;
+    /* Pointer to SSL or SSL_CTX options field or NULL if none */
+    unsigned long *poptions;
+    /* Pointer to SSL or SSL_CTX cert_flags or NULL if none */
+    unsigned int *pcert_flags;
+    /* Current flag table being worked on */
+    const ssl_flag_tbl *tbl;
+    /* Size of table */
+    size_t ntbl;
+};
+
+static int ssl_match_option(SSL_CONF_CTX *cctx, const ssl_flag_tbl *tbl,
+                            const char *name, int namelen, int onoff)
+{
+    /* If name not relevant for context skip */
+    if (!(cctx->flags & tbl->name_flags & SSL_TFLAG_BOTH))
+        return 0;
+    if (namelen == -1) {
+        if (strcmp(tbl->name, name))
+            return 0;
+    } else if (tbl->namelen != namelen
+               || strncasecmp(tbl->name, name, namelen))
+        return 0;
+    if (cctx->poptions) {
+        if (tbl->name_flags & SSL_TFLAG_INV)
+            onoff ^= 1;
+        if (tbl->name_flags & SSL_TFLAG_CERT) {
+            if (onoff)
+                *cctx->pcert_flags |= tbl->option_value;
+            else
+                *cctx->pcert_flags &= ~tbl->option_value;
+        } else {
+            if (onoff)
+                *cctx->poptions |= tbl->option_value;
+            else
+                *cctx->poptions &= ~tbl->option_value;
+        }
+    }
+    return 1;
+}
+
+static int ssl_set_option_list(const char *elem, int len, void *usr)
+{
+    SSL_CONF_CTX *cctx = usr;
+    size_t i;
+    const ssl_flag_tbl *tbl;
+    int onoff = 1;
+    /*
+     * len == -1 indicates not being called in list context, just for single
+     * command line switches, so don't allow +, -.
+     */
+    if (len != -1) {
+        if (*elem == '+') {
+            elem++;
+            len--;
+            onoff = 1;
+        } else if (*elem == '-') {
+            elem++;
+            len--;
+            onoff = 0;
+        }
+    }
+    for (i = 0, tbl = cctx->tbl; i < cctx->ntbl; i++, tbl++) {
+        if (ssl_match_option(cctx, tbl, elem, len, onoff))
+            return 1;
+    }
+    return 0;
+}
+
+/* Single command line switches with no argument e.g. -no_ssl3 */
+static int ctrl_str_option(SSL_CONF_CTX *cctx, const char *cmd)
+{
+    static const ssl_flag_tbl ssl_option_single[] = {
+        SSL_FLAG_TBL("no_ssl2", SSL_OP_NO_SSLv2),
+        SSL_FLAG_TBL("no_ssl3", SSL_OP_NO_SSLv3),
+        SSL_FLAG_TBL("no_tls1", SSL_OP_NO_TLSv1),
+        SSL_FLAG_TBL("no_tls1_1", SSL_OP_NO_TLSv1_1),
+        SSL_FLAG_TBL("no_tls1_2", SSL_OP_NO_TLSv1_2),
+        SSL_FLAG_TBL("bugs", SSL_OP_ALL),
+        SSL_FLAG_TBL("no_comp", SSL_OP_NO_COMPRESSION),
+        SSL_FLAG_TBL_SRV("ecdh_single", SSL_OP_SINGLE_ECDH_USE),
+#ifndef OPENSSL_NO_TLSEXT
+        SSL_FLAG_TBL("no_ticket", SSL_OP_NO_TICKET),
+#endif
+        SSL_FLAG_TBL_SRV("serverpref", SSL_OP_CIPHER_SERVER_PREFERENCE),
+        SSL_FLAG_TBL("legacy_renegotiation",
+                     SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION),
+        SSL_FLAG_TBL_SRV("legacy_server_connect",
+                         SSL_OP_LEGACY_SERVER_CONNECT),
+        SSL_FLAG_TBL_SRV("no_resumption_on_reneg",
+                         SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION),
+        SSL_FLAG_TBL_SRV_INV("no_legacy_server_connect",
+                             SSL_OP_LEGACY_SERVER_CONNECT),
+        SSL_FLAG_TBL_CERT("strict", SSL_CERT_FLAG_TLS_STRICT),
+#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
+        SSL_FLAG_TBL_CERT("debug_broken_protocol",
+                          SSL_CERT_FLAG_BROKEN_PROTOCOL),
+#endif
+    };
+    cctx->tbl = ssl_option_single;
+    cctx->ntbl = sizeof(ssl_option_single) / sizeof(ssl_flag_tbl);
+    return ssl_set_option_list(cmd, -1, cctx);
+}
+
+/* Set supported signature algorithms */
+static int cmd_SignatureAlgorithms(SSL_CONF_CTX *cctx, const char *value)
+{
+    int rv;
+    if (cctx->ssl)
+        rv = SSL_set1_sigalgs_list(cctx->ssl, value);
+    /* NB: ctx == NULL performs syntax checking only */
+    else
+        rv = SSL_CTX_set1_sigalgs_list(cctx->ctx, value);
+    return rv > 0;
+}
+
+/* Set supported client signature algorithms */
+static int cmd_ClientSignatureAlgorithms(SSL_CONF_CTX *cctx,
+                                         const char *value)
+{
+    int rv;
+    if (cctx->ssl)
+        rv = SSL_set1_client_sigalgs_list(cctx->ssl, value);
+    /* NB: ctx == NULL performs syntax checking only */
+    else
+        rv = SSL_CTX_set1_client_sigalgs_list(cctx->ctx, value);
+    return rv > 0;
+}
+
+static int cmd_Curves(SSL_CONF_CTX *cctx, const char *value)
+{
+    int rv;
+    if (cctx->ssl)
+        rv = SSL_set1_curves_list(cctx->ssl, value);
+    /* NB: ctx == NULL performs syntax checking only */
+    else
+        rv = SSL_CTX_set1_curves_list(cctx->ctx, value);
+    return rv > 0;
+}
+
+#ifndef OPENSSL_NO_ECDH
+/* ECDH temporary parameters */
+static int cmd_ECDHParameters(SSL_CONF_CTX *cctx, const char *value)
+{
+    int onoff = -1, rv = 1;
+    if (!(cctx->flags & SSL_CONF_FLAG_SERVER))
+        return -2;
+    if (cctx->flags & SSL_CONF_FLAG_FILE) {
+        if (*value == '+') {
+            onoff = 1;
+            value++;
+        }
+        if (*value == '-') {
+            onoff = 0;
+            value++;
+        }
+        if (!strcasecmp(value, "automatic")) {
+            if (onoff == -1)
+                onoff = 1;
+        } else if (onoff != -1)
+            return 0;
+    } else if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
+        if (!strcmp(value, "auto"))
+            onoff = 1;
+    }
+
+    if (onoff != -1) {
+        if (cctx->ctx)
+            rv = SSL_CTX_set_ecdh_auto(cctx->ctx, onoff);
+        else if (cctx->ssl)
+            rv = SSL_set_ecdh_auto(cctx->ssl, onoff);
+    } else {
+        EC_KEY *ecdh;
+        int nid;
+        nid = EC_curve_nist2nid(value);
+        if (nid == NID_undef)
+            nid = OBJ_sn2nid(value);
+        if (nid == 0)
+            return 0;
+        ecdh = EC_KEY_new_by_curve_name(nid);
+        if (!ecdh)
+            return 0;
+        if (cctx->ctx)
+            rv = SSL_CTX_set_tmp_ecdh(cctx->ctx, ecdh);
+        else if (cctx->ssl)
+            rv = SSL_set_tmp_ecdh(cctx->ssl, ecdh);
+        EC_KEY_free(ecdh);
+    }
+
+    return rv > 0;
+}
+#endif
+static int cmd_CipherString(SSL_CONF_CTX *cctx, const char *value)
+{
+    int rv = 1;
+    if (cctx->ctx)
+        rv = SSL_CTX_set_cipher_list(cctx->ctx, value);
+    if (cctx->ssl)
+        rv = SSL_set_cipher_list(cctx->ssl, value);
+    return rv > 0;
+}
+
+static int cmd_Protocol(SSL_CONF_CTX *cctx, const char *value)
+{
+    static const ssl_flag_tbl ssl_protocol_list[] = {
+        SSL_FLAG_TBL_INV("ALL", SSL_OP_NO_SSL_MASK),
+        SSL_FLAG_TBL_INV("SSLv2", SSL_OP_NO_SSLv2),
+        SSL_FLAG_TBL_INV("SSLv3", SSL_OP_NO_SSLv3),
+        SSL_FLAG_TBL_INV("TLSv1", SSL_OP_NO_TLSv1),
+        SSL_FLAG_TBL_INV("TLSv1.1", SSL_OP_NO_TLSv1_1),
+        SSL_FLAG_TBL_INV("TLSv1.2", SSL_OP_NO_TLSv1_2)
+    };
+    if (!(cctx->flags & SSL_CONF_FLAG_FILE))
+        return -2;
+    cctx->tbl = ssl_protocol_list;
+    cctx->ntbl = sizeof(ssl_protocol_list) / sizeof(ssl_flag_tbl);
+    return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
+}
+
+static int cmd_Options(SSL_CONF_CTX *cctx, const char *value)
+{
+    static const ssl_flag_tbl ssl_option_list[] = {
+        SSL_FLAG_TBL_INV("SessionTicket", SSL_OP_NO_TICKET),
+        SSL_FLAG_TBL_INV("EmptyFragments",
+                         SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS),
+        SSL_FLAG_TBL("Bugs", SSL_OP_ALL),
+        SSL_FLAG_TBL_INV("Compression", SSL_OP_NO_COMPRESSION),
+        SSL_FLAG_TBL_SRV("ServerPreference", SSL_OP_CIPHER_SERVER_PREFERENCE),
+        SSL_FLAG_TBL_SRV("NoResumptionOnRenegotiation",
+                         SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION),
+        SSL_FLAG_TBL_SRV("DHSingle", SSL_OP_SINGLE_DH_USE),
+        SSL_FLAG_TBL_SRV("ECDHSingle", SSL_OP_SINGLE_ECDH_USE),
+        SSL_FLAG_TBL("UnsafeLegacyRenegotiation",
+                     SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION),
+    };
+    if (!(cctx->flags & SSL_CONF_FLAG_FILE))
+        return -2;
+    if (value == NULL)
+        return -3;
+    cctx->tbl = ssl_option_list;
+    cctx->ntbl = sizeof(ssl_option_list) / sizeof(ssl_flag_tbl);
+    return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
+}
+
+static int cmd_Certificate(SSL_CONF_CTX *cctx, const char *value)
+{
+    int rv = 1;
+    if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE))
+        return -2;
+    if (cctx->ctx)
+        rv = SSL_CTX_use_certificate_chain_file(cctx->ctx, value);
+    if (cctx->ssl)
+        rv = SSL_use_certificate_file(cctx->ssl, value, SSL_FILETYPE_PEM);
+    return rv > 0;
+}
+
+static int cmd_PrivateKey(SSL_CONF_CTX *cctx, const char *value)
+{
+    int rv = 1;
+    if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE))
+        return -2;
+    if (cctx->ctx)
+        rv = SSL_CTX_use_PrivateKey_file(cctx->ctx, value, SSL_FILETYPE_PEM);
+    if (cctx->ssl)
+        rv = SSL_use_PrivateKey_file(cctx->ssl, value, SSL_FILETYPE_PEM);
+    return rv > 0;
+}
+
+#ifndef OPENSSL_NO_DH
+static int cmd_DHParameters(SSL_CONF_CTX *cctx, const char *value)
+{
+    int rv = 0;
+    DH *dh = NULL;
+    BIO *in = NULL;
+    if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE))
+        return -2;
+    if (cctx->ctx || cctx->ssl) {
+        in = BIO_new(BIO_s_file_internal());
+        if (!in)
+            goto end;
+        if (BIO_read_filename(in, value) <= 0)
+            goto end;
+        dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL);
+        if (!dh)
+            goto end;
+    } else
+        return 1;
+    if (cctx->ctx)
+        rv = SSL_CTX_set_tmp_dh(cctx->ctx, dh);
+    if (cctx->ssl)
+        rv = SSL_set_tmp_dh(cctx->ssl, dh);
+ end:
+    if (dh)
+        DH_free(dh);
+    if (in)
+        BIO_free(in);
+    return rv > 0;
+}
+#endif
+typedef struct {
+    int (*cmd) (SSL_CONF_CTX *cctx, const char *value);
+    const char *str_file;
+    const char *str_cmdline;
+    unsigned int value_type;
+} ssl_conf_cmd_tbl;
+
+/* Table of supported parameters */
+
+#define SSL_CONF_CMD(name, cmdopt, type) \
+        {cmd_##name, #name, cmdopt, type}
+
+#define SSL_CONF_CMD_STRING(name, cmdopt) \
+        SSL_CONF_CMD(name, cmdopt, SSL_CONF_TYPE_STRING)
+
+static const ssl_conf_cmd_tbl ssl_conf_cmds[] = {
+    SSL_CONF_CMD_STRING(SignatureAlgorithms, "sigalgs"),
+    SSL_CONF_CMD_STRING(ClientSignatureAlgorithms, "client_sigalgs"),
+    SSL_CONF_CMD_STRING(Curves, "curves"),
+#ifndef OPENSSL_NO_ECDH
+    SSL_CONF_CMD_STRING(ECDHParameters, "named_curve"),
+#endif
+    SSL_CONF_CMD_STRING(CipherString, "cipher"),
+    SSL_CONF_CMD_STRING(Protocol, NULL),
+    SSL_CONF_CMD_STRING(Options, NULL),
+    SSL_CONF_CMD(Certificate, "cert", SSL_CONF_TYPE_FILE),
+    SSL_CONF_CMD(PrivateKey, "key", SSL_CONF_TYPE_FILE),
+#ifndef OPENSSL_NO_DH
+    SSL_CONF_CMD(DHParameters, "dhparam", SSL_CONF_TYPE_FILE)
+#endif
+};
+
+static int ssl_conf_cmd_skip_prefix(SSL_CONF_CTX *cctx, const char **pcmd)
+{
+    if (!pcmd || !*pcmd)
+        return 0;
+    /* If a prefix is set, check and skip */
+    if (cctx->prefix) {
+        if (strlen(*pcmd) <= cctx->prefixlen)
+            return 0;
+        if (cctx->flags & SSL_CONF_FLAG_CMDLINE &&
+            strncmp(*pcmd, cctx->prefix, cctx->prefixlen))
+            return 0;
+        if (cctx->flags & SSL_CONF_FLAG_FILE &&
+            strncasecmp(*pcmd, cctx->prefix, cctx->prefixlen))
+            return 0;
+        *pcmd += cctx->prefixlen;
+    } else if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
+        if (**pcmd != '-' || !(*pcmd)[1])
+            return 0;
+        *pcmd += 1;
+    }
+    return 1;
+}
+
+static const ssl_conf_cmd_tbl *ssl_conf_cmd_lookup(SSL_CONF_CTX *cctx,
+                                                   const char *cmd)
+{
+    const ssl_conf_cmd_tbl *t;
+    size_t i;
+    if (cmd == NULL)
+        return NULL;
+
+    /* Look for matching parameter name in table */
+    for (i = 0, t = ssl_conf_cmds;
+         i < sizeof(ssl_conf_cmds) / sizeof(ssl_conf_cmd_tbl); i++, t++) {
+        if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
+            if (t->str_cmdline && !strcmp(t->str_cmdline, cmd))
+                return t;
+        }
+        if (cctx->flags & SSL_CONF_FLAG_FILE) {
+            if (t->str_file && !strcasecmp(t->str_file, cmd))
+                return t;
+        }
+    }
+    return NULL;
+}
+
+int SSL_CONF_cmd(SSL_CONF_CTX *cctx, const char *cmd, const char *value)
+{
+    const ssl_conf_cmd_tbl *runcmd;
+    if (cmd == NULL) {
+        SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_INVALID_NULL_CMD_NAME);
+        return 0;
+    }
+
+    if (!ssl_conf_cmd_skip_prefix(cctx, &cmd))
+        return -2;
+
+    runcmd = ssl_conf_cmd_lookup(cctx, cmd);
+
+    if (runcmd) {
+        int rv;
+        if (value == NULL)
+            return -3;
+        rv = runcmd->cmd(cctx, value);
+        if (rv > 0)
+            return 2;
+        if (rv == -2)
+            return -2;
+        if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS) {
+            SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_BAD_VALUE);
+            ERR_add_error_data(4, "cmd=", cmd, ", value=", value);
+        }
+        return 0;
+    }
+
+    if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
+        if (ctrl_str_option(cctx, cmd))
+            return 1;
+    }
+
+    if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS) {
+        SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_UNKNOWN_CMD_NAME);
+        ERR_add_error_data(2, "cmd=", cmd);
+    }
+
+    return -2;
+}
+
+int SSL_CONF_cmd_argv(SSL_CONF_CTX *cctx, int *pargc, char ***pargv)
+{
+    int rv;
+    const char *arg = NULL, *argn;
+    if (pargc && *pargc == 0)
+        return 0;
+    if (!pargc || *pargc > 0)
+        arg = **pargv;
+    if (arg == NULL)
+        return 0;
+    if (!pargc || *pargc > 1)
+        argn = (*pargv)[1];
+    else
+        argn = NULL;
+    cctx->flags &= ~SSL_CONF_FLAG_FILE;
+    cctx->flags |= SSL_CONF_FLAG_CMDLINE;
+    rv = SSL_CONF_cmd(cctx, arg, argn);
+    if (rv > 0) {
+        /* Success: update pargc, pargv */
+        (*pargv) += rv;
+        if (pargc)
+            (*pargc) -= rv;
+        return rv;
+    }
+    /* Unknown switch: indicate no arguments processed */
+    if (rv == -2)
+        return 0;
+    /* Some error occurred processing command, return fatal error */
+    if (rv == 0)
+        return -1;
+    return rv;
+}
+
+int SSL_CONF_cmd_value_type(SSL_CONF_CTX *cctx, const char *cmd)
+{
+    if (ssl_conf_cmd_skip_prefix(cctx, &cmd)) {
+        const ssl_conf_cmd_tbl *runcmd;
+        runcmd = ssl_conf_cmd_lookup(cctx, cmd);
+        if (runcmd)
+            return runcmd->value_type;
+    }
+    return SSL_CONF_TYPE_UNKNOWN;
+}
+
+SSL_CONF_CTX *SSL_CONF_CTX_new(void)
+{
+    SSL_CONF_CTX *ret;
+    ret = OPENSSL_malloc(sizeof(SSL_CONF_CTX));
+    if (ret) {
+        ret->flags = 0;
+        ret->prefix = NULL;
+        ret->prefixlen = 0;
+        ret->ssl = NULL;
+        ret->ctx = NULL;
+        ret->poptions = NULL;
+        ret->pcert_flags = NULL;
+        ret->tbl = NULL;
+        ret->ntbl = 0;
+    }
+    return ret;
+}
+
+int SSL_CONF_CTX_finish(SSL_CONF_CTX *cctx)
+{
+    return 1;
+}
+
+void SSL_CONF_CTX_free(SSL_CONF_CTX *cctx)
+{
+    if (cctx) {
+        if (cctx->prefix)
+            OPENSSL_free(cctx->prefix);
+        OPENSSL_free(cctx);
+    }
+}
+
+unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX *cctx, unsigned int flags)
+{
+    cctx->flags |= flags;
+    return cctx->flags;
+}
+
+unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX *cctx, unsigned int flags)
+{
+    cctx->flags &= ~flags;
+    return cctx->flags;
+}
+
+int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *pre)
+{
+    char *tmp = NULL;
+    if (pre) {
+        tmp = BUF_strdup(pre);
+        if (tmp == NULL)
+            return 0;
+    }
+    if (cctx->prefix)
+        OPENSSL_free(cctx->prefix);
+    cctx->prefix = tmp;
+    if (tmp)
+        cctx->prefixlen = strlen(tmp);
+    else
+        cctx->prefixlen = 0;
+    return 1;
+}
+
+void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX *cctx, SSL *ssl)
+{
+    cctx->ssl = ssl;
+    cctx->ctx = NULL;
+    if (ssl) {
+        cctx->poptions = &ssl->options;
+        cctx->pcert_flags = &ssl->cert->cert_flags;
+    } else {
+        cctx->poptions = NULL;
+        cctx->pcert_flags = NULL;
+    }
+}
+
+void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX *cctx, SSL_CTX *ctx)
+{
+    cctx->ctx = ctx;
+    cctx->ssl = NULL;
+    if (ctx) {
+        cctx->poptions = &ctx->options;
+        cctx->pcert_flags = &ctx->cert->cert_flags;
+    } else {
+        cctx->poptions = NULL;
+        cctx->pcert_flags = NULL;
+    }
+}