[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit

Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/lib/libssl/openssl-1.1.1o/apps/apps.c b/ap/lib/libssl/openssl-1.1.1o/apps/apps.c
new file mode 100644
index 0000000..f2447fb
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/apps/apps.c
@@ -0,0 +1,2796 @@
+/*
+ * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
+/*
+ * On VMS, you need to define this to get the declaration of fileno().  The
+ * value 2 is to make sure no function defined in POSIX-2 is left undefined.
+ */
+# define _POSIX_C_SOURCE 2
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#ifndef OPENSSL_NO_POSIX_IO
+# include <sys/stat.h>
+# include <fcntl.h>
+#endif
+#include <ctype.h>
+#include <errno.h>
+#include <openssl/err.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+#include <openssl/pem.h>
+#include <openssl/pkcs12.h>
+#include <openssl/ui.h>
+#include <openssl/safestack.h>
+#ifndef OPENSSL_NO_ENGINE
+# include <openssl/engine.h>
+#endif
+#ifndef OPENSSL_NO_RSA
+# include <openssl/rsa.h>
+#endif
+#include <openssl/bn.h>
+#include <openssl/ssl.h>
+#include "apps.h"
+
+#ifdef _WIN32
+static int WIN32_rename(const char *from, const char *to);
+# define rename(from,to) WIN32_rename((from),(to))
+#endif
+
+#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
+# include <conio.h>
+#endif
+
+#if defined(OPENSSL_SYS_MSDOS) && !defined(_WIN32)
+# define _kbhit kbhit
+#endif
+
+typedef struct {
+    const char *name;
+    unsigned long flag;
+    unsigned long mask;
+} NAME_EX_TBL;
+
+static UI_METHOD *ui_method = NULL;
+static const UI_METHOD *ui_fallback_method = NULL;
+
+static int set_table_opts(unsigned long *flags, const char *arg,
+                          const NAME_EX_TBL * in_tbl);
+static int set_multi_opts(unsigned long *flags, const char *arg,
+                          const NAME_EX_TBL * in_tbl);
+
+int app_init(long mesgwin);
+
+int chopup_args(ARGS *arg, char *buf)
+{
+    int quoted;
+    char c = '\0', *p = NULL;
+
+    arg->argc = 0;
+    if (arg->size == 0) {
+        arg->size = 20;
+        arg->argv = app_malloc(sizeof(*arg->argv) * arg->size, "argv space");
+    }
+
+    for (p = buf;;) {
+        /* Skip whitespace. */
+        while (*p && isspace(_UC(*p)))
+            p++;
+        if (!*p)
+            break;
+
+        /* The start of something good :-) */
+        if (arg->argc >= arg->size) {
+            char **tmp;
+            arg->size += 20;
+            tmp = OPENSSL_realloc(arg->argv, sizeof(*arg->argv) * arg->size);
+            if (tmp == NULL)
+                return 0;
+            arg->argv = tmp;
+        }
+        quoted = *p == '\'' || *p == '"';
+        if (quoted)
+            c = *p++;
+        arg->argv[arg->argc++] = p;
+
+        /* now look for the end of this */
+        if (quoted) {
+            while (*p && *p != c)
+                p++;
+            *p++ = '\0';
+        } else {
+            while (*p && !isspace(_UC(*p)))
+                p++;
+            if (*p)
+                *p++ = '\0';
+        }
+    }
+    arg->argv[arg->argc] = NULL;
+    return 1;
+}
+
+#ifndef APP_INIT
+int app_init(long mesgwin)
+{
+    return 1;
+}
+#endif
+
+int ctx_set_verify_locations(SSL_CTX *ctx, const char *CAfile,
+                             const char *CApath, int noCAfile, int noCApath)
+{
+    if (CAfile == NULL && CApath == NULL) {
+        if (!noCAfile && SSL_CTX_set_default_verify_file(ctx) <= 0)
+            return 0;
+        if (!noCApath && SSL_CTX_set_default_verify_dir(ctx) <= 0)
+            return 0;
+
+        return 1;
+    }
+    return SSL_CTX_load_verify_locations(ctx, CAfile, CApath);
+}
+
+#ifndef OPENSSL_NO_CT
+
+int ctx_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
+{
+    if (path == NULL)
+        return SSL_CTX_set_default_ctlog_list_file(ctx);
+
+    return SSL_CTX_set_ctlog_list_file(ctx, path);
+}
+
+#endif
+
+static unsigned long nmflag = 0;
+static char nmflag_set = 0;
+
+int set_nameopt(const char *arg)
+{
+    int ret = set_name_ex(&nmflag, arg);
+
+    if (ret)
+        nmflag_set = 1;
+
+    return ret;
+}
+
+unsigned long get_nameopt(void)
+{
+    return (nmflag_set) ? nmflag : XN_FLAG_ONELINE;
+}
+
+int dump_cert_text(BIO *out, X509 *x)
+{
+    print_name(out, "subject=", X509_get_subject_name(x), get_nameopt());
+    BIO_puts(out, "\n");
+    print_name(out, "issuer=", X509_get_issuer_name(x), get_nameopt());
+    BIO_puts(out, "\n");
+
+    return 0;
+}
+
+static int ui_open(UI *ui)
+{
+    int (*opener)(UI *ui) = UI_method_get_opener(ui_fallback_method);
+
+    if (opener)
+        return opener(ui);
+    return 1;
+}
+
+static int ui_read(UI *ui, UI_STRING *uis)
+{
+    int (*reader)(UI *ui, UI_STRING *uis) = NULL;
+
+    if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
+        && UI_get0_user_data(ui)) {
+        switch (UI_get_string_type(uis)) {
+        case UIT_PROMPT:
+        case UIT_VERIFY:
+            {
+                const char *password =
+                    ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
+                if (password && password[0] != '\0') {
+                    UI_set_result(ui, uis, password);
+                    return 1;
+                }
+            }
+            break;
+        case UIT_NONE:
+        case UIT_BOOLEAN:
+        case UIT_INFO:
+        case UIT_ERROR:
+            break;
+        }
+    }
+
+    reader = UI_method_get_reader(ui_fallback_method);
+    if (reader)
+        return reader(ui, uis);
+    return 1;
+}
+
+static int ui_write(UI *ui, UI_STRING *uis)
+{
+    int (*writer)(UI *ui, UI_STRING *uis) = NULL;
+
+    if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
+        && UI_get0_user_data(ui)) {
+        switch (UI_get_string_type(uis)) {
+        case UIT_PROMPT:
+        case UIT_VERIFY:
+            {
+                const char *password =
+                    ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
+                if (password && password[0] != '\0')
+                    return 1;
+            }
+            break;
+        case UIT_NONE:
+        case UIT_BOOLEAN:
+        case UIT_INFO:
+        case UIT_ERROR:
+            break;
+        }
+    }
+
+    writer = UI_method_get_writer(ui_fallback_method);
+    if (writer)
+        return writer(ui, uis);
+    return 1;
+}
+
+static int ui_close(UI *ui)
+{
+    int (*closer)(UI *ui) = UI_method_get_closer(ui_fallback_method);
+
+    if (closer)
+        return closer(ui);
+    return 1;
+}
+
+int setup_ui_method(void)
+{
+    ui_fallback_method = UI_null();
+#ifndef OPENSSL_NO_UI_CONSOLE
+    ui_fallback_method = UI_OpenSSL();
+#endif
+    ui_method = UI_create_method("OpenSSL application user interface");
+    UI_method_set_opener(ui_method, ui_open);
+    UI_method_set_reader(ui_method, ui_read);
+    UI_method_set_writer(ui_method, ui_write);
+    UI_method_set_closer(ui_method, ui_close);
+    return 0;
+}
+
+void destroy_ui_method(void)
+{
+    if (ui_method) {
+        UI_destroy_method(ui_method);
+        ui_method = NULL;
+    }
+}
+
+const UI_METHOD *get_ui_method(void)
+{
+    return ui_method;
+}
+
+int password_callback(char *buf, int bufsiz, int verify, PW_CB_DATA *cb_tmp)
+{
+    int res = 0;
+    UI *ui = NULL;
+    PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
+
+    ui = UI_new_method(ui_method);
+    if (ui) {
+        int ok = 0;
+        char *buff = NULL;
+        int ui_flags = 0;
+        const char *prompt_info = NULL;
+        char *prompt;
+        int pw_min_len = PW_MIN_LENGTH;
+
+        if (cb_data != NULL && cb_data->prompt_info != NULL)
+            prompt_info = cb_data->prompt_info;
+        if (cb_data != NULL && cb_data->password != NULL
+                && *(const char*)cb_data->password != '\0')
+            pw_min_len = 1;
+        else if (!verify)
+            pw_min_len = 0;
+        prompt = UI_construct_prompt(ui, "pass phrase", prompt_info);
+        if (!prompt) {
+            BIO_printf(bio_err, "Out of memory\n");
+            UI_free(ui);
+            return 0;
+        }
+
+        ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
+        UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
+
+        /* We know that there is no previous user data to return to us */
+        (void)UI_add_user_data(ui, cb_data);
+
+        ok = UI_add_input_string(ui, prompt, ui_flags, buf,
+                                 pw_min_len, bufsiz - 1);
+
+        if (ok >= 0 && verify) {
+            buff = app_malloc(bufsiz, "password buffer");
+            ok = UI_add_verify_string(ui, prompt, ui_flags, buff,
+                                      pw_min_len, bufsiz - 1, buf);
+        }
+        if (ok >= 0)
+            do {
+                ok = UI_process(ui);
+            } while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
+
+        OPENSSL_clear_free(buff, (unsigned int)bufsiz);
+
+        if (ok >= 0)
+            res = strlen(buf);
+        if (ok == -1) {
+            BIO_printf(bio_err, "User interface error\n");
+            ERR_print_errors(bio_err);
+            OPENSSL_cleanse(buf, (unsigned int)bufsiz);
+            res = 0;
+        }
+        if (ok == -2) {
+            BIO_printf(bio_err, "aborted!\n");
+            OPENSSL_cleanse(buf, (unsigned int)bufsiz);
+            res = 0;
+        }
+        UI_free(ui);
+        OPENSSL_free(prompt);
+    }
+    return res;
+}
+
+static char *app_get_pass(const char *arg, int keepbio);
+
+int app_passwd(const char *arg1, const char *arg2, char **pass1, char **pass2)
+{
+    int same;
+    if (arg2 == NULL || arg1 == NULL || strcmp(arg1, arg2))
+        same = 0;
+    else
+        same = 1;
+    if (arg1 != NULL) {
+        *pass1 = app_get_pass(arg1, same);
+        if (*pass1 == NULL)
+            return 0;
+    } else if (pass1 != NULL) {
+        *pass1 = NULL;
+    }
+    if (arg2 != NULL) {
+        *pass2 = app_get_pass(arg2, same ? 2 : 0);
+        if (*pass2 == NULL)
+            return 0;
+    } else if (pass2 != NULL) {
+        *pass2 = NULL;
+    }
+    return 1;
+}
+
+static char *app_get_pass(const char *arg, int keepbio)
+{
+    char *tmp, tpass[APP_PASS_LEN];
+    static BIO *pwdbio = NULL;
+    int i;
+
+    if (strncmp(arg, "pass:", 5) == 0)
+        return OPENSSL_strdup(arg + 5);
+    if (strncmp(arg, "env:", 4) == 0) {
+        tmp = getenv(arg + 4);
+        if (tmp == NULL) {
+            BIO_printf(bio_err, "Can't read environment variable %s\n", arg + 4);
+            return NULL;
+        }
+        return OPENSSL_strdup(tmp);
+    }
+    if (!keepbio || pwdbio == NULL) {
+        if (strncmp(arg, "file:", 5) == 0) {
+            pwdbio = BIO_new_file(arg + 5, "r");
+            if (pwdbio == NULL) {
+                BIO_printf(bio_err, "Can't open file %s\n", arg + 5);
+                return NULL;
+            }
+#if !defined(_WIN32)
+            /*
+             * Under _WIN32, which covers even Win64 and CE, file
+             * descriptors referenced by BIO_s_fd are not inherited
+             * by child process and therefore below is not an option.
+             * It could have been an option if bss_fd.c was operating
+             * on real Windows descriptors, such as those obtained
+             * with CreateFile.
+             */
+        } else if (strncmp(arg, "fd:", 3) == 0) {
+            BIO *btmp;
+            i = atoi(arg + 3);
+            if (i >= 0)
+                pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
+            if ((i < 0) || !pwdbio) {
+                BIO_printf(bio_err, "Can't access file descriptor %s\n", arg + 3);
+                return NULL;
+            }
+            /*
+             * Can't do BIO_gets on an fd BIO so add a buffering BIO
+             */
+            btmp = BIO_new(BIO_f_buffer());
+            pwdbio = BIO_push(btmp, pwdbio);
+#endif
+        } else if (strcmp(arg, "stdin") == 0) {
+            pwdbio = dup_bio_in(FORMAT_TEXT);
+            if (!pwdbio) {
+                BIO_printf(bio_err, "Can't open BIO for stdin\n");
+                return NULL;
+            }
+        } else {
+            BIO_printf(bio_err, "Invalid password argument \"%s\"\n", arg);
+            return NULL;
+        }
+    }
+    i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
+    if (keepbio != 1) {
+        BIO_free_all(pwdbio);
+        pwdbio = NULL;
+    }
+    if (i <= 0) {
+        BIO_printf(bio_err, "Error reading password from BIO\n");
+        return NULL;
+    }
+    tmp = strchr(tpass, '\n');
+    if (tmp != NULL)
+        *tmp = 0;
+    return OPENSSL_strdup(tpass);
+}
+
+CONF *app_load_config_bio(BIO *in, const char *filename)
+{
+    long errorline = -1;
+    CONF *conf;
+    int i;
+
+    conf = NCONF_new(NULL);
+    i = NCONF_load_bio(conf, in, &errorline);
+    if (i > 0)
+        return conf;
+
+    if (errorline <= 0) {
+        BIO_printf(bio_err, "%s: Can't load ", opt_getprog());
+    } else {
+        BIO_printf(bio_err, "%s: Error on line %ld of ", opt_getprog(),
+                   errorline);
+    }
+    if (filename != NULL)
+        BIO_printf(bio_err, "config file \"%s\"\n", filename);
+    else
+        BIO_printf(bio_err, "config input");
+
+    NCONF_free(conf);
+    return NULL;
+}
+
+CONF *app_load_config(const char *filename)
+{
+    BIO *in;
+    CONF *conf;
+
+    in = bio_open_default(filename, 'r', FORMAT_TEXT);
+    if (in == NULL)
+        return NULL;
+
+    conf = app_load_config_bio(in, filename);
+    BIO_free(in);
+    return conf;
+}
+
+CONF *app_load_config_quiet(const char *filename)
+{
+    BIO *in;
+    CONF *conf;
+
+    in = bio_open_default_quiet(filename, 'r', FORMAT_TEXT);
+    if (in == NULL)
+        return NULL;
+
+    conf = app_load_config_bio(in, filename);
+    BIO_free(in);
+    return conf;
+}
+
+int app_load_modules(const CONF *config)
+{
+    CONF *to_free = NULL;
+
+    if (config == NULL)
+        config = to_free = app_load_config_quiet(default_config_file);
+    if (config == NULL)
+        return 1;
+
+    if (CONF_modules_load(config, NULL, 0) <= 0) {
+        BIO_printf(bio_err, "Error configuring OpenSSL modules\n");
+        ERR_print_errors(bio_err);
+        NCONF_free(to_free);
+        return 0;
+    }
+    NCONF_free(to_free);
+    return 1;
+}
+
+int add_oid_section(CONF *conf)
+{
+    char *p;
+    STACK_OF(CONF_VALUE) *sktmp;
+    CONF_VALUE *cnf;
+    int i;
+
+    if ((p = NCONF_get_string(conf, NULL, "oid_section")) == NULL) {
+        ERR_clear_error();
+        return 1;
+    }
+    if ((sktmp = NCONF_get_section(conf, p)) == NULL) {
+        BIO_printf(bio_err, "problem loading oid section %s\n", p);
+        return 0;
+    }
+    for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
+        cnf = sk_CONF_VALUE_value(sktmp, i);
+        if (OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
+            BIO_printf(bio_err, "problem creating object %s=%s\n",
+                       cnf->name, cnf->value);
+            return 0;
+        }
+    }
+    return 1;
+}
+
+static int load_pkcs12(BIO *in, const char *desc,
+                       pem_password_cb *pem_cb, void *cb_data,
+                       EVP_PKEY **pkey, X509 **cert, STACK_OF(X509) **ca)
+{
+    const char *pass;
+    char tpass[PEM_BUFSIZE];
+    int len, ret = 0;
+    PKCS12 *p12;
+    p12 = d2i_PKCS12_bio(in, NULL);
+    if (p12 == NULL) {
+        BIO_printf(bio_err, "Error loading PKCS12 file for %s\n", desc);
+        goto die;
+    }
+    /* See if an empty password will do */
+    if (PKCS12_verify_mac(p12, "", 0) || PKCS12_verify_mac(p12, NULL, 0)) {
+        pass = "";
+    } else {
+        if (!pem_cb)
+            pem_cb = (pem_password_cb *)password_callback;
+        len = pem_cb(tpass, PEM_BUFSIZE, 0, cb_data);
+        if (len < 0) {
+            BIO_printf(bio_err, "Passphrase callback error for %s\n", desc);
+            goto die;
+        }
+        if (len < PEM_BUFSIZE)
+            tpass[len] = 0;
+        if (!PKCS12_verify_mac(p12, tpass, len)) {
+            BIO_printf(bio_err,
+                       "Mac verify error (wrong password?) in PKCS12 file for %s\n",
+                       desc);
+            goto die;
+        }
+        pass = tpass;
+    }
+    ret = PKCS12_parse(p12, pass, pkey, cert, ca);
+ die:
+    PKCS12_free(p12);
+    return ret;
+}
+
+#if !defined(OPENSSL_NO_OCSP) && !defined(OPENSSL_NO_SOCK)
+static int load_cert_crl_http(const char *url, X509 **pcert, X509_CRL **pcrl)
+{
+    char *host = NULL, *port = NULL, *path = NULL;
+    BIO *bio = NULL;
+    OCSP_REQ_CTX *rctx = NULL;
+    int use_ssl, rv = 0;
+    if (!OCSP_parse_url(url, &host, &port, &path, &use_ssl))
+        goto err;
+    if (use_ssl) {
+        BIO_puts(bio_err, "https not supported\n");
+        goto err;
+    }
+    bio = BIO_new_connect(host);
+    if (!bio || !BIO_set_conn_port(bio, port))
+        goto err;
+    rctx = OCSP_REQ_CTX_new(bio, 1024);
+    if (rctx == NULL)
+        goto err;
+    if (!OCSP_REQ_CTX_http(rctx, "GET", path))
+        goto err;
+    if (!OCSP_REQ_CTX_add1_header(rctx, "Host", host))
+        goto err;
+    if (pcert) {
+        do {
+            rv = X509_http_nbio(rctx, pcert);
+        } while (rv == -1);
+    } else {
+        do {
+            rv = X509_CRL_http_nbio(rctx, pcrl);
+        } while (rv == -1);
+    }
+
+ err:
+    OPENSSL_free(host);
+    OPENSSL_free(path);
+    OPENSSL_free(port);
+    BIO_free_all(bio);
+    OCSP_REQ_CTX_free(rctx);
+    if (rv != 1) {
+        BIO_printf(bio_err, "Error loading %s from %s\n",
+                   pcert ? "certificate" : "CRL", url);
+        ERR_print_errors(bio_err);
+    }
+    return rv;
+}
+#endif
+
+X509 *load_cert(const char *file, int format, const char *cert_descrip)
+{
+    X509 *x = NULL;
+    BIO *cert;
+
+    if (format == FORMAT_HTTP) {
+#if !defined(OPENSSL_NO_OCSP) && !defined(OPENSSL_NO_SOCK)
+        load_cert_crl_http(file, &x, NULL);
+#endif
+        return x;
+    }
+
+    if (file == NULL) {
+        unbuffer(stdin);
+        cert = dup_bio_in(format);
+    } else {
+        cert = bio_open_default(file, 'r', format);
+    }
+    if (cert == NULL)
+        goto end;
+
+    if (format == FORMAT_ASN1) {
+        x = d2i_X509_bio(cert, NULL);
+    } else if (format == FORMAT_PEM) {
+        x = PEM_read_bio_X509_AUX(cert, NULL,
+                                  (pem_password_cb *)password_callback, NULL);
+    } else if (format == FORMAT_PKCS12) {
+        if (!load_pkcs12(cert, cert_descrip, NULL, NULL, NULL, &x, NULL))
+            goto end;
+    } else {
+        BIO_printf(bio_err, "bad input format specified for %s\n", cert_descrip);
+        goto end;
+    }
+ end:
+    if (x == NULL) {
+        BIO_printf(bio_err, "unable to load certificate\n");
+        ERR_print_errors(bio_err);
+    }
+    BIO_free(cert);
+    return x;
+}
+
+X509_CRL *load_crl(const char *infile, int format)
+{
+    X509_CRL *x = NULL;
+    BIO *in = NULL;
+
+    if (format == FORMAT_HTTP) {
+#if !defined(OPENSSL_NO_OCSP) && !defined(OPENSSL_NO_SOCK)
+        load_cert_crl_http(infile, NULL, &x);
+#endif
+        return x;
+    }
+
+    in = bio_open_default(infile, 'r', format);
+    if (in == NULL)
+        goto end;
+    if (format == FORMAT_ASN1) {
+        x = d2i_X509_CRL_bio(in, NULL);
+    } else if (format == FORMAT_PEM) {
+        x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
+    } else {
+        BIO_printf(bio_err, "bad input format specified for input crl\n");
+        goto end;
+    }
+    if (x == NULL) {
+        BIO_printf(bio_err, "unable to load CRL\n");
+        ERR_print_errors(bio_err);
+        goto end;
+    }
+
+ end:
+    BIO_free(in);
+    return x;
+}
+
+EVP_PKEY *load_key(const char *file, int format, int maybe_stdin,
+                   const char *pass, ENGINE *e, const char *key_descrip)
+{
+    BIO *key = NULL;
+    EVP_PKEY *pkey = NULL;
+    PW_CB_DATA cb_data;
+
+    cb_data.password = pass;
+    cb_data.prompt_info = file;
+
+    if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE)) {
+        BIO_printf(bio_err, "no keyfile specified\n");
+        goto end;
+    }
+    if (format == FORMAT_ENGINE) {
+        if (e == NULL) {
+            BIO_printf(bio_err, "no engine specified\n");
+        } else {
+#ifndef OPENSSL_NO_ENGINE
+            if (ENGINE_init(e)) {
+                pkey = ENGINE_load_private_key(e, file, ui_method, &cb_data);
+                ENGINE_finish(e);
+            }
+            if (pkey == NULL) {
+                BIO_printf(bio_err, "cannot load %s from engine\n", key_descrip);
+                ERR_print_errors(bio_err);
+            }
+#else
+            BIO_printf(bio_err, "engines not supported\n");
+#endif
+        }
+        goto end;
+    }
+    if (file == NULL && maybe_stdin) {
+        unbuffer(stdin);
+        key = dup_bio_in(format);
+    } else {
+        key = bio_open_default(file, 'r', format);
+    }
+    if (key == NULL)
+        goto end;
+    if (format == FORMAT_ASN1) {
+        pkey = d2i_PrivateKey_bio(key, NULL);
+    } else if (format == FORMAT_PEM) {
+        pkey = PEM_read_bio_PrivateKey(key, NULL,
+                                       (pem_password_cb *)password_callback,
+                                       &cb_data);
+    } else if (format == FORMAT_PKCS12) {
+        if (!load_pkcs12(key, key_descrip,
+                         (pem_password_cb *)password_callback, &cb_data,
+                         &pkey, NULL, NULL))
+            goto end;
+#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DSA) && !defined (OPENSSL_NO_RC4)
+    } else if (format == FORMAT_MSBLOB) {
+        pkey = b2i_PrivateKey_bio(key);
+    } else if (format == FORMAT_PVK) {
+        pkey = b2i_PVK_bio(key, (pem_password_cb *)password_callback,
+                           &cb_data);
+#endif
+    } else {
+        BIO_printf(bio_err, "bad input format specified for key file\n");
+        goto end;
+    }
+ end:
+    BIO_free(key);
+    if (pkey == NULL) {
+        BIO_printf(bio_err, "unable to load %s\n", key_descrip);
+        ERR_print_errors(bio_err);
+    }
+    return pkey;
+}
+
+EVP_PKEY *load_pubkey(const char *file, int format, int maybe_stdin,
+                      const char *pass, ENGINE *e, const char *key_descrip)
+{
+    BIO *key = NULL;
+    EVP_PKEY *pkey = NULL;
+    PW_CB_DATA cb_data;
+
+    cb_data.password = pass;
+    cb_data.prompt_info = file;
+
+    if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE)) {
+        BIO_printf(bio_err, "no keyfile specified\n");
+        goto end;
+    }
+    if (format == FORMAT_ENGINE) {
+        if (e == NULL) {
+            BIO_printf(bio_err, "no engine specified\n");
+        } else {
+#ifndef OPENSSL_NO_ENGINE
+            pkey = ENGINE_load_public_key(e, file, ui_method, &cb_data);
+            if (pkey == NULL) {
+                BIO_printf(bio_err, "cannot load %s from engine\n", key_descrip);
+                ERR_print_errors(bio_err);
+            }
+#else
+            BIO_printf(bio_err, "engines not supported\n");
+#endif
+        }
+        goto end;
+    }
+    if (file == NULL && maybe_stdin) {
+        unbuffer(stdin);
+        key = dup_bio_in(format);
+    } else {
+        key = bio_open_default(file, 'r', format);
+    }
+    if (key == NULL)
+        goto end;
+    if (format == FORMAT_ASN1) {
+        pkey = d2i_PUBKEY_bio(key, NULL);
+    } else if (format == FORMAT_ASN1RSA) {
+#ifndef OPENSSL_NO_RSA
+        RSA *rsa;
+        rsa = d2i_RSAPublicKey_bio(key, NULL);
+        if (rsa) {
+            pkey = EVP_PKEY_new();
+            if (pkey != NULL)
+                EVP_PKEY_set1_RSA(pkey, rsa);
+            RSA_free(rsa);
+        } else
+#else
+        BIO_printf(bio_err, "RSA keys not supported\n");
+#endif
+            pkey = NULL;
+    } else if (format == FORMAT_PEMRSA) {
+#ifndef OPENSSL_NO_RSA
+        RSA *rsa;
+        rsa = PEM_read_bio_RSAPublicKey(key, NULL,
+                                        (pem_password_cb *)password_callback,
+                                        &cb_data);
+        if (rsa != NULL) {
+            pkey = EVP_PKEY_new();
+            if (pkey != NULL)
+                EVP_PKEY_set1_RSA(pkey, rsa);
+            RSA_free(rsa);
+        } else
+#else
+        BIO_printf(bio_err, "RSA keys not supported\n");
+#endif
+            pkey = NULL;
+    } else if (format == FORMAT_PEM) {
+        pkey = PEM_read_bio_PUBKEY(key, NULL,
+                                   (pem_password_cb *)password_callback,
+                                   &cb_data);
+#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DSA)
+    } else if (format == FORMAT_MSBLOB) {
+        pkey = b2i_PublicKey_bio(key);
+#endif
+    }
+ end:
+    BIO_free(key);
+    if (pkey == NULL)
+        BIO_printf(bio_err, "unable to load %s\n", key_descrip);
+    return pkey;
+}
+
+static int load_certs_crls(const char *file, int format,
+                           const char *pass, const char *desc,
+                           STACK_OF(X509) **pcerts,
+                           STACK_OF(X509_CRL) **pcrls)
+{
+    int i;
+    BIO *bio;
+    STACK_OF(X509_INFO) *xis = NULL;
+    X509_INFO *xi;
+    PW_CB_DATA cb_data;
+    int rv = 0;
+
+    cb_data.password = pass;
+    cb_data.prompt_info = file;
+
+    if (format != FORMAT_PEM) {
+        BIO_printf(bio_err, "bad input format specified for %s\n", desc);
+        return 0;
+    }
+
+    bio = bio_open_default(file, 'r', FORMAT_PEM);
+    if (bio == NULL)
+        return 0;
+
+    xis = PEM_X509_INFO_read_bio(bio, NULL,
+                                 (pem_password_cb *)password_callback,
+                                 &cb_data);
+
+    BIO_free(bio);
+
+    if (pcerts != NULL && *pcerts == NULL) {
+        *pcerts = sk_X509_new_null();
+        if (*pcerts == NULL)
+            goto end;
+    }
+
+    if (pcrls != NULL && *pcrls == NULL) {
+        *pcrls = sk_X509_CRL_new_null();
+        if (*pcrls == NULL)
+            goto end;
+    }
+
+    for (i = 0; i < sk_X509_INFO_num(xis); i++) {
+        xi = sk_X509_INFO_value(xis, i);
+        if (xi->x509 != NULL && pcerts != NULL) {
+            if (!sk_X509_push(*pcerts, xi->x509))
+                goto end;
+            xi->x509 = NULL;
+        }
+        if (xi->crl != NULL && pcrls != NULL) {
+            if (!sk_X509_CRL_push(*pcrls, xi->crl))
+                goto end;
+            xi->crl = NULL;
+        }
+    }
+
+    if (pcerts != NULL && sk_X509_num(*pcerts) > 0)
+        rv = 1;
+
+    if (pcrls != NULL && sk_X509_CRL_num(*pcrls) > 0)
+        rv = 1;
+
+ end:
+
+    sk_X509_INFO_pop_free(xis, X509_INFO_free);
+
+    if (rv == 0) {
+        if (pcerts != NULL) {
+            sk_X509_pop_free(*pcerts, X509_free);
+            *pcerts = NULL;
+        }
+        if (pcrls != NULL) {
+            sk_X509_CRL_pop_free(*pcrls, X509_CRL_free);
+            *pcrls = NULL;
+        }
+        BIO_printf(bio_err, "unable to load %s\n",
+                   pcerts ? "certificates" : "CRLs");
+        ERR_print_errors(bio_err);
+    }
+    return rv;
+}
+
+void* app_malloc(int sz, const char *what)
+{
+    void *vp = OPENSSL_malloc(sz);
+
+    if (vp == NULL) {
+        BIO_printf(bio_err, "%s: Could not allocate %d bytes for %s\n",
+                opt_getprog(), sz, what);
+        ERR_print_errors(bio_err);
+        exit(1);
+    }
+    return vp;
+}
+
+/*
+ * Initialize or extend, if *certs != NULL, a certificate stack.
+ */
+int load_certs(const char *file, STACK_OF(X509) **certs, int format,
+               const char *pass, const char *desc)
+{
+    return load_certs_crls(file, format, pass, desc, certs, NULL);
+}
+
+/*
+ * Initialize or extend, if *crls != NULL, a certificate stack.
+ */
+int load_crls(const char *file, STACK_OF(X509_CRL) **crls, int format,
+              const char *pass, const char *desc)
+{
+    return load_certs_crls(file, format, pass, desc, NULL, crls);
+}
+
+#define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
+/* Return error for unknown extensions */
+#define X509V3_EXT_DEFAULT              0
+/* Print error for unknown extensions */
+#define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
+/* ASN1 parse unknown extensions */
+#define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
+/* BIO_dump unknown extensions */
+#define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
+
+#define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
+                         X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
+
+int set_cert_ex(unsigned long *flags, const char *arg)
+{
+    static const NAME_EX_TBL cert_tbl[] = {
+        {"compatible", X509_FLAG_COMPAT, 0xffffffffl},
+        {"ca_default", X509_FLAG_CA, 0xffffffffl},
+        {"no_header", X509_FLAG_NO_HEADER, 0},
+        {"no_version", X509_FLAG_NO_VERSION, 0},
+        {"no_serial", X509_FLAG_NO_SERIAL, 0},
+        {"no_signame", X509_FLAG_NO_SIGNAME, 0},
+        {"no_validity", X509_FLAG_NO_VALIDITY, 0},
+        {"no_subject", X509_FLAG_NO_SUBJECT, 0},
+        {"no_issuer", X509_FLAG_NO_ISSUER, 0},
+        {"no_pubkey", X509_FLAG_NO_PUBKEY, 0},
+        {"no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
+        {"no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
+        {"no_aux", X509_FLAG_NO_AUX, 0},
+        {"no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
+        {"ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
+        {"ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
+        {"ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
+        {"ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
+        {NULL, 0, 0}
+    };
+    return set_multi_opts(flags, arg, cert_tbl);
+}
+
+int set_name_ex(unsigned long *flags, const char *arg)
+{
+    static const NAME_EX_TBL ex_tbl[] = {
+        {"esc_2253", ASN1_STRFLGS_ESC_2253, 0},
+        {"esc_2254", ASN1_STRFLGS_ESC_2254, 0},
+        {"esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
+        {"esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
+        {"use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
+        {"utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
+        {"ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
+        {"show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
+        {"dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
+        {"dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
+        {"dump_der", ASN1_STRFLGS_DUMP_DER, 0},
+        {"compat", XN_FLAG_COMPAT, 0xffffffffL},
+        {"sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
+        {"sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
+        {"sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
+        {"sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
+        {"dn_rev", XN_FLAG_DN_REV, 0},
+        {"nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
+        {"sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
+        {"lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
+        {"align", XN_FLAG_FN_ALIGN, 0},
+        {"oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
+        {"space_eq", XN_FLAG_SPC_EQ, 0},
+        {"dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
+        {"RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
+        {"oneline", XN_FLAG_ONELINE, 0xffffffffL},
+        {"multiline", XN_FLAG_MULTILINE, 0xffffffffL},
+        {"ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
+        {NULL, 0, 0}
+    };
+    if (set_multi_opts(flags, arg, ex_tbl) == 0)
+        return 0;
+    if (*flags != XN_FLAG_COMPAT
+        && (*flags & XN_FLAG_SEP_MASK) == 0)
+        *flags |= XN_FLAG_SEP_CPLUS_SPC;
+    return 1;
+}
+
+int set_ext_copy(int *copy_type, const char *arg)
+{
+    if (strcasecmp(arg, "none") == 0)
+        *copy_type = EXT_COPY_NONE;
+    else if (strcasecmp(arg, "copy") == 0)
+        *copy_type = EXT_COPY_ADD;
+    else if (strcasecmp(arg, "copyall") == 0)
+        *copy_type = EXT_COPY_ALL;
+    else
+        return 0;
+    return 1;
+}
+
+int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
+{
+    STACK_OF(X509_EXTENSION) *exts = NULL;
+    X509_EXTENSION *ext, *tmpext;
+    ASN1_OBJECT *obj;
+    int i, idx, ret = 0;
+    if (!x || !req || (copy_type == EXT_COPY_NONE))
+        return 1;
+    exts = X509_REQ_get_extensions(req);
+
+    for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
+        ext = sk_X509_EXTENSION_value(exts, i);
+        obj = X509_EXTENSION_get_object(ext);
+        idx = X509_get_ext_by_OBJ(x, obj, -1);
+        /* Does extension exist? */
+        if (idx != -1) {
+            /* If normal copy don't override existing extension */
+            if (copy_type == EXT_COPY_ADD)
+                continue;
+            /* Delete all extensions of same type */
+            do {
+                tmpext = X509_get_ext(x, idx);
+                X509_delete_ext(x, idx);
+                X509_EXTENSION_free(tmpext);
+                idx = X509_get_ext_by_OBJ(x, obj, -1);
+            } while (idx != -1);
+        }
+        if (!X509_add_ext(x, ext, -1))
+            goto end;
+    }
+
+    ret = 1;
+
+ end:
+
+    sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
+
+    return ret;
+}
+
+static int set_multi_opts(unsigned long *flags, const char *arg,
+                          const NAME_EX_TBL * in_tbl)
+{
+    STACK_OF(CONF_VALUE) *vals;
+    CONF_VALUE *val;
+    int i, ret = 1;
+    if (!arg)
+        return 0;
+    vals = X509V3_parse_list(arg);
+    for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
+        val = sk_CONF_VALUE_value(vals, i);
+        if (!set_table_opts(flags, val->name, in_tbl))
+            ret = 0;
+    }
+    sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
+    return ret;
+}
+
+static int set_table_opts(unsigned long *flags, const char *arg,
+                          const NAME_EX_TBL * in_tbl)
+{
+    char c;
+    const NAME_EX_TBL *ptbl;
+    c = arg[0];
+
+    if (c == '-') {
+        c = 0;
+        arg++;
+    } else if (c == '+') {
+        c = 1;
+        arg++;
+    } else {
+        c = 1;
+    }
+
+    for (ptbl = in_tbl; ptbl->name; ptbl++) {
+        if (strcasecmp(arg, ptbl->name) == 0) {
+            *flags &= ~ptbl->mask;
+            if (c)
+                *flags |= ptbl->flag;
+            else
+                *flags &= ~ptbl->flag;
+            return 1;
+        }
+    }
+    return 0;
+}
+
+void print_name(BIO *out, const char *title, X509_NAME *nm,
+                unsigned long lflags)
+{
+    char *buf;
+    char mline = 0;
+    int indent = 0;
+
+    if (title)
+        BIO_puts(out, title);
+    if ((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
+        mline = 1;
+        indent = 4;
+    }
+    if (lflags == XN_FLAG_COMPAT) {
+        buf = X509_NAME_oneline(nm, 0, 0);
+        BIO_puts(out, buf);
+        BIO_puts(out, "\n");
+        OPENSSL_free(buf);
+    } else {
+        if (mline)
+            BIO_puts(out, "\n");
+        X509_NAME_print_ex(out, nm, indent, lflags);
+        BIO_puts(out, "\n");
+    }
+}
+
+void print_bignum_var(BIO *out, const BIGNUM *in, const char *var,
+                      int len, unsigned char *buffer)
+{
+    BIO_printf(out, "    static unsigned char %s_%d[] = {", var, len);
+    if (BN_is_zero(in)) {
+        BIO_printf(out, "\n        0x00");
+    } else {
+        int i, l;
+
+        l = BN_bn2bin(in, buffer);
+        for (i = 0; i < l; i++) {
+            BIO_printf(out, (i % 10) == 0 ? "\n        " : " ");
+            if (i < l - 1)
+                BIO_printf(out, "0x%02X,", buffer[i]);
+            else
+                BIO_printf(out, "0x%02X", buffer[i]);
+        }
+    }
+    BIO_printf(out, "\n    };\n");
+}
+
+void print_array(BIO *out, const char* title, int len, const unsigned char* d)
+{
+    int i;
+
+    BIO_printf(out, "unsigned char %s[%d] = {", title, len);
+    for (i = 0; i < len; i++) {
+        if ((i % 10) == 0)
+            BIO_printf(out, "\n    ");
+        if (i < len - 1)
+            BIO_printf(out, "0x%02X, ", d[i]);
+        else
+            BIO_printf(out, "0x%02X", d[i]);
+    }
+    BIO_printf(out, "\n};\n");
+}
+
+X509_STORE *setup_verify(const char *CAfile, const char *CApath, int noCAfile, int noCApath)
+{
+    X509_STORE *store = X509_STORE_new();
+    X509_LOOKUP *lookup;
+
+    if (store == NULL)
+        goto end;
+
+    if (CAfile != NULL || !noCAfile) {
+        lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
+        if (lookup == NULL)
+            goto end;
+        if (CAfile) {
+            if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) {
+                BIO_printf(bio_err, "Error loading file %s\n", CAfile);
+                goto end;
+            }
+        } else {
+            X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
+        }
+    }
+
+    if (CApath != NULL || !noCApath) {
+        lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
+        if (lookup == NULL)
+            goto end;
+        if (CApath) {
+            if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) {
+                BIO_printf(bio_err, "Error loading directory %s\n", CApath);
+                goto end;
+            }
+        } else {
+            X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
+        }
+    }
+
+    ERR_clear_error();
+    return store;
+ end:
+    X509_STORE_free(store);
+    return NULL;
+}
+
+#ifndef OPENSSL_NO_ENGINE
+/* Try to load an engine in a shareable library */
+static ENGINE *try_load_engine(const char *engine)
+{
+    ENGINE *e = ENGINE_by_id("dynamic");
+    if (e) {
+        if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
+            || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0)) {
+            ENGINE_free(e);
+            e = NULL;
+        }
+    }
+    return e;
+}
+#endif
+
+ENGINE *setup_engine(const char *engine, int debug)
+{
+    ENGINE *e = NULL;
+
+#ifndef OPENSSL_NO_ENGINE
+    if (engine != NULL) {
+        if (strcmp(engine, "auto") == 0) {
+            BIO_printf(bio_err, "enabling auto ENGINE support\n");
+            ENGINE_register_all_complete();
+            return NULL;
+        }
+        if ((e = ENGINE_by_id(engine)) == NULL
+            && (e = try_load_engine(engine)) == NULL) {
+            BIO_printf(bio_err, "invalid engine \"%s\"\n", engine);
+            ERR_print_errors(bio_err);
+            return NULL;
+        }
+        if (debug) {
+            ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM, 0, bio_err, 0);
+        }
+        ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
+        if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
+            BIO_printf(bio_err, "can't use that engine\n");
+            ERR_print_errors(bio_err);
+            ENGINE_free(e);
+            return NULL;
+        }
+
+        BIO_printf(bio_err, "engine \"%s\" set.\n", ENGINE_get_id(e));
+    }
+#endif
+    return e;
+}
+
+void release_engine(ENGINE *e)
+{
+#ifndef OPENSSL_NO_ENGINE
+    if (e != NULL)
+        /* Free our "structural" reference. */
+        ENGINE_free(e);
+#endif
+}
+
+static unsigned long index_serial_hash(const OPENSSL_CSTRING *a)
+{
+    const char *n;
+
+    n = a[DB_serial];
+    while (*n == '0')
+        n++;
+    return OPENSSL_LH_strhash(n);
+}
+
+static int index_serial_cmp(const OPENSSL_CSTRING *a,
+                            const OPENSSL_CSTRING *b)
+{
+    const char *aa, *bb;
+
+    for (aa = a[DB_serial]; *aa == '0'; aa++) ;
+    for (bb = b[DB_serial]; *bb == '0'; bb++) ;
+    return strcmp(aa, bb);
+}
+
+static int index_name_qual(char **a)
+{
+    return (a[0][0] == 'V');
+}
+
+static unsigned long index_name_hash(const OPENSSL_CSTRING *a)
+{
+    return OPENSSL_LH_strhash(a[DB_name]);
+}
+
+int index_name_cmp(const OPENSSL_CSTRING *a, const OPENSSL_CSTRING *b)
+{
+    return strcmp(a[DB_name], b[DB_name]);
+}
+
+static IMPLEMENT_LHASH_HASH_FN(index_serial, OPENSSL_CSTRING)
+static IMPLEMENT_LHASH_COMP_FN(index_serial, OPENSSL_CSTRING)
+static IMPLEMENT_LHASH_HASH_FN(index_name, OPENSSL_CSTRING)
+static IMPLEMENT_LHASH_COMP_FN(index_name, OPENSSL_CSTRING)
+#undef BSIZE
+#define BSIZE 256
+BIGNUM *load_serial(const char *serialfile, int *exists, int create,
+                    ASN1_INTEGER **retai)
+{
+    BIO *in = NULL;
+    BIGNUM *ret = NULL;
+    char buf[1024];
+    ASN1_INTEGER *ai = NULL;
+
+    ai = ASN1_INTEGER_new();
+    if (ai == NULL)
+        goto err;
+
+    in = BIO_new_file(serialfile, "r");
+    if (exists != NULL)
+        *exists = in != NULL;
+    if (in == NULL) {
+        if (!create) {
+            perror(serialfile);
+            goto err;
+        }
+        ERR_clear_error();
+        ret = BN_new();
+        if (ret == NULL) {
+            BIO_printf(bio_err, "Out of memory\n");
+        } else if (!rand_serial(ret, ai)) {
+            BIO_printf(bio_err, "Error creating random number to store in %s\n",
+                       serialfile);
+            BN_free(ret);
+            ret = NULL;
+        }
+    } else {
+        if (!a2i_ASN1_INTEGER(in, ai, buf, 1024)) {
+            BIO_printf(bio_err, "unable to load number from %s\n",
+                       serialfile);
+            goto err;
+        }
+        ret = ASN1_INTEGER_to_BN(ai, NULL);
+        if (ret == NULL) {
+            BIO_printf(bio_err,
+                       "error converting number from bin to BIGNUM\n");
+            goto err;
+        }
+    }
+
+    if (ret && retai) {
+        *retai = ai;
+        ai = NULL;
+    }
+ err:
+    if (ret == NULL)
+        ERR_print_errors(bio_err);
+    BIO_free(in);
+    ASN1_INTEGER_free(ai);
+    return ret;
+}
+
+int save_serial(const char *serialfile, const char *suffix, const BIGNUM *serial,
+                ASN1_INTEGER **retai)
+{
+    char buf[1][BSIZE];
+    BIO *out = NULL;
+    int ret = 0;
+    ASN1_INTEGER *ai = NULL;
+    int j;
+
+    if (suffix == NULL)
+        j = strlen(serialfile);
+    else
+        j = strlen(serialfile) + strlen(suffix) + 1;
+    if (j >= BSIZE) {
+        BIO_printf(bio_err, "file name too long\n");
+        goto err;
+    }
+
+    if (suffix == NULL)
+        OPENSSL_strlcpy(buf[0], serialfile, BSIZE);
+    else {
+#ifndef OPENSSL_SYS_VMS
+        j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, suffix);
+#else
+        j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, suffix);
+#endif
+    }
+    out = BIO_new_file(buf[0], "w");
+    if (out == NULL) {
+        ERR_print_errors(bio_err);
+        goto err;
+    }
+
+    if ((ai = BN_to_ASN1_INTEGER(serial, NULL)) == NULL) {
+        BIO_printf(bio_err, "error converting serial to ASN.1 format\n");
+        goto err;
+    }
+    i2a_ASN1_INTEGER(out, ai);
+    BIO_puts(out, "\n");
+    ret = 1;
+    if (retai) {
+        *retai = ai;
+        ai = NULL;
+    }
+ err:
+    BIO_free_all(out);
+    ASN1_INTEGER_free(ai);
+    return ret;
+}
+
+int rotate_serial(const char *serialfile, const char *new_suffix,
+                  const char *old_suffix)
+{
+    char buf[2][BSIZE];
+    int i, j;
+
+    i = strlen(serialfile) + strlen(old_suffix);
+    j = strlen(serialfile) + strlen(new_suffix);
+    if (i > j)
+        j = i;
+    if (j + 1 >= BSIZE) {
+        BIO_printf(bio_err, "file name too long\n");
+        goto err;
+    }
+#ifndef OPENSSL_SYS_VMS
+    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, new_suffix);
+    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", serialfile, old_suffix);
+#else
+    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, new_suffix);
+    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", serialfile, old_suffix);
+#endif
+    if (rename(serialfile, buf[1]) < 0 && errno != ENOENT
+#ifdef ENOTDIR
+        && errno != ENOTDIR
+#endif
+        ) {
+        BIO_printf(bio_err,
+                   "unable to rename %s to %s\n", serialfile, buf[1]);
+        perror("reason");
+        goto err;
+    }
+    if (rename(buf[0], serialfile) < 0) {
+        BIO_printf(bio_err,
+                   "unable to rename %s to %s\n", buf[0], serialfile);
+        perror("reason");
+        rename(buf[1], serialfile);
+        goto err;
+    }
+    return 1;
+ err:
+    return 0;
+}
+
+int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
+{
+    BIGNUM *btmp;
+    int ret = 0;
+
+    btmp = b == NULL ? BN_new() : b;
+    if (btmp == NULL)
+        return 0;
+
+    if (!BN_rand(btmp, SERIAL_RAND_BITS, BN_RAND_TOP_ANY, BN_RAND_BOTTOM_ANY))
+        goto error;
+    if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
+        goto error;
+
+    ret = 1;
+
+ error:
+
+    if (btmp != b)
+        BN_free(btmp);
+
+    return ret;
+}
+
+CA_DB *load_index(const char *dbfile, DB_ATTR *db_attr)
+{
+    CA_DB *retdb = NULL;
+    TXT_DB *tmpdb = NULL;
+    BIO *in;
+    CONF *dbattr_conf = NULL;
+    char buf[BSIZE];
+#ifndef OPENSSL_NO_POSIX_IO
+    FILE *dbfp;
+    struct stat dbst;
+#endif
+
+    in = BIO_new_file(dbfile, "r");
+    if (in == NULL) {
+        ERR_print_errors(bio_err);
+        goto err;
+    }
+
+#ifndef OPENSSL_NO_POSIX_IO
+    BIO_get_fp(in, &dbfp);
+    if (fstat(fileno(dbfp), &dbst) == -1) {
+        SYSerr(SYS_F_FSTAT, errno);
+        ERR_add_error_data(3, "fstat('", dbfile, "')");
+        ERR_print_errors(bio_err);
+        goto err;
+    }
+#endif
+
+    if ((tmpdb = TXT_DB_read(in, DB_NUMBER)) == NULL)
+        goto err;
+
+#ifndef OPENSSL_SYS_VMS
+    BIO_snprintf(buf, sizeof(buf), "%s.attr", dbfile);
+#else
+    BIO_snprintf(buf, sizeof(buf), "%s-attr", dbfile);
+#endif
+    dbattr_conf = app_load_config_quiet(buf);
+
+    retdb = app_malloc(sizeof(*retdb), "new DB");
+    retdb->db = tmpdb;
+    tmpdb = NULL;
+    if (db_attr)
+        retdb->attributes = *db_attr;
+    else {
+        retdb->attributes.unique_subject = 1;
+    }
+
+    if (dbattr_conf) {
+        char *p = NCONF_get_string(dbattr_conf, NULL, "unique_subject");
+        if (p) {
+            retdb->attributes.unique_subject = parse_yesno(p, 1);
+        }
+    }
+
+    retdb->dbfname = OPENSSL_strdup(dbfile);
+#ifndef OPENSSL_NO_POSIX_IO
+    retdb->dbst = dbst;
+#endif
+
+ err:
+    NCONF_free(dbattr_conf);
+    TXT_DB_free(tmpdb);
+    BIO_free_all(in);
+    return retdb;
+}
+
+/*
+ * Returns > 0 on success, <= 0 on error
+ */
+int index_index(CA_DB *db)
+{
+    if (!TXT_DB_create_index(db->db, DB_serial, NULL,
+                             LHASH_HASH_FN(index_serial),
+                             LHASH_COMP_FN(index_serial))) {
+        BIO_printf(bio_err,
+                   "error creating serial number index:(%ld,%ld,%ld)\n",
+                   db->db->error, db->db->arg1, db->db->arg2);
+        return 0;
+    }
+
+    if (db->attributes.unique_subject
+        && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
+                                LHASH_HASH_FN(index_name),
+                                LHASH_COMP_FN(index_name))) {
+        BIO_printf(bio_err, "error creating name index:(%ld,%ld,%ld)\n",
+                   db->db->error, db->db->arg1, db->db->arg2);
+        return 0;
+    }
+    return 1;
+}
+
+int save_index(const char *dbfile, const char *suffix, CA_DB *db)
+{
+    char buf[3][BSIZE];
+    BIO *out;
+    int j;
+
+    j = strlen(dbfile) + strlen(suffix);
+    if (j + 6 >= BSIZE) {
+        BIO_printf(bio_err, "file name too long\n");
+        goto err;
+    }
+#ifndef OPENSSL_SYS_VMS
+    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr", dbfile);
+    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s.attr.%s", dbfile, suffix);
+    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, suffix);
+#else
+    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr", dbfile);
+    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s-attr-%s", dbfile, suffix);
+    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, suffix);
+#endif
+    out = BIO_new_file(buf[0], "w");
+    if (out == NULL) {
+        perror(dbfile);
+        BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
+        goto err;
+    }
+    j = TXT_DB_write(out, db->db);
+    BIO_free(out);
+    if (j <= 0)
+        goto err;
+
+    out = BIO_new_file(buf[1], "w");
+    if (out == NULL) {
+        perror(buf[2]);
+        BIO_printf(bio_err, "unable to open '%s'\n", buf[2]);
+        goto err;
+    }
+    BIO_printf(out, "unique_subject = %s\n",
+               db->attributes.unique_subject ? "yes" : "no");
+    BIO_free(out);
+
+    return 1;
+ err:
+    return 0;
+}
+
+int rotate_index(const char *dbfile, const char *new_suffix,
+                 const char *old_suffix)
+{
+    char buf[5][BSIZE];
+    int i, j;
+
+    i = strlen(dbfile) + strlen(old_suffix);
+    j = strlen(dbfile) + strlen(new_suffix);
+    if (i > j)
+        j = i;
+    if (j + 6 >= BSIZE) {
+        BIO_printf(bio_err, "file name too long\n");
+        goto err;
+    }
+#ifndef OPENSSL_SYS_VMS
+    j = BIO_snprintf(buf[4], sizeof(buf[4]), "%s.attr", dbfile);
+    j = BIO_snprintf(buf[3], sizeof(buf[3]), "%s.attr.%s", dbfile, old_suffix);
+    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr.%s", dbfile, new_suffix);
+    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", dbfile, old_suffix);
+    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, new_suffix);
+#else
+    j = BIO_snprintf(buf[4], sizeof(buf[4]), "%s-attr", dbfile);
+    j = BIO_snprintf(buf[3], sizeof(buf[3]), "%s-attr-%s", dbfile, old_suffix);
+    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr-%s", dbfile, new_suffix);
+    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", dbfile, old_suffix);
+    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, new_suffix);
+#endif
+    if (rename(dbfile, buf[1]) < 0 && errno != ENOENT
+#ifdef ENOTDIR
+        && errno != ENOTDIR
+#endif
+        ) {
+        BIO_printf(bio_err, "unable to rename %s to %s\n", dbfile, buf[1]);
+        perror("reason");
+        goto err;
+    }
+    if (rename(buf[0], dbfile) < 0) {
+        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[0], dbfile);
+        perror("reason");
+        rename(buf[1], dbfile);
+        goto err;
+    }
+    if (rename(buf[4], buf[3]) < 0 && errno != ENOENT
+#ifdef ENOTDIR
+        && errno != ENOTDIR
+#endif
+        ) {
+        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[4], buf[3]);
+        perror("reason");
+        rename(dbfile, buf[0]);
+        rename(buf[1], dbfile);
+        goto err;
+    }
+    if (rename(buf[2], buf[4]) < 0) {
+        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[2], buf[4]);
+        perror("reason");
+        rename(buf[3], buf[4]);
+        rename(dbfile, buf[0]);
+        rename(buf[1], dbfile);
+        goto err;
+    }
+    return 1;
+ err:
+    return 0;
+}
+
+void free_index(CA_DB *db)
+{
+    if (db) {
+        TXT_DB_free(db->db);
+        OPENSSL_free(db->dbfname);
+        OPENSSL_free(db);
+    }
+}
+
+int parse_yesno(const char *str, int def)
+{
+    if (str) {
+        switch (*str) {
+        case 'f':              /* false */
+        case 'F':              /* FALSE */
+        case 'n':              /* no */
+        case 'N':              /* NO */
+        case '0':              /* 0 */
+            return 0;
+        case 't':              /* true */
+        case 'T':              /* TRUE */
+        case 'y':              /* yes */
+        case 'Y':              /* YES */
+        case '1':              /* 1 */
+            return 1;
+        }
+    }
+    return def;
+}
+
+/*
+ * name is expected to be in the format /type0=value0/type1=value1/type2=...
+ * where characters may be escaped by \
+ */
+X509_NAME *parse_name(const char *cp, long chtype, int canmulti)
+{
+    int nextismulti = 0;
+    char *work;
+    X509_NAME *n;
+
+    if (*cp++ != '/') {
+        BIO_printf(bio_err,
+                   "name is expected to be in the format "
+                   "/type0=value0/type1=value1/type2=... where characters may "
+                   "be escaped by \\. This name is not in that format: '%s'\n",
+                   --cp);
+        return NULL;
+    }
+
+    n = X509_NAME_new();
+    if (n == NULL)
+        return NULL;
+    work = OPENSSL_strdup(cp);
+    if (work == NULL)
+        goto err;
+
+    while (*cp) {
+        char *bp = work;
+        char *typestr = bp;
+        unsigned char *valstr;
+        int nid;
+        int ismulti = nextismulti;
+        nextismulti = 0;
+
+        /* Collect the type */
+        while (*cp && *cp != '=')
+            *bp++ = *cp++;
+        if (*cp == '\0') {
+            BIO_printf(bio_err,
+                    "%s: Hit end of string before finding the equals.\n",
+                    opt_getprog());
+            goto err;
+        }
+        *bp++ = '\0';
+        ++cp;
+
+        /* Collect the value. */
+        valstr = (unsigned char *)bp;
+        for (; *cp && *cp != '/'; *bp++ = *cp++) {
+            if (canmulti && *cp == '+') {
+                nextismulti = 1;
+                break;
+            }
+            if (*cp == '\\' && *++cp == '\0') {
+                BIO_printf(bio_err,
+                        "%s: escape character at end of string\n",
+                        opt_getprog());
+                goto err;
+            }
+        }
+        *bp++ = '\0';
+
+        /* If not at EOS (must be + or /), move forward. */
+        if (*cp)
+            ++cp;
+
+        /* Parse */
+        nid = OBJ_txt2nid(typestr);
+        if (nid == NID_undef) {
+            BIO_printf(bio_err, "%s: Skipping unknown attribute \"%s\"\n",
+                      opt_getprog(), typestr);
+            continue;
+        }
+        if (*valstr == '\0') {
+            BIO_printf(bio_err,
+                       "%s: No value provided for Subject Attribute %s, skipped\n",
+                       opt_getprog(), typestr);
+            continue;
+        }
+        if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
+                                        valstr, strlen((char *)valstr),
+                                        -1, ismulti ? -1 : 0))
+            goto err;
+    }
+
+    OPENSSL_free(work);
+    return n;
+
+ err:
+    X509_NAME_free(n);
+    OPENSSL_free(work);
+    return NULL;
+}
+
+/*
+ * Read whole contents of a BIO into an allocated memory buffer and return
+ * it.
+ */
+
+int bio_to_mem(unsigned char **out, int maxlen, BIO *in)
+{
+    BIO *mem;
+    int len, ret;
+    unsigned char tbuf[1024];
+
+    mem = BIO_new(BIO_s_mem());
+    if (mem == NULL)
+        return -1;
+    for (;;) {
+        if ((maxlen != -1) && maxlen < 1024)
+            len = maxlen;
+        else
+            len = 1024;
+        len = BIO_read(in, tbuf, len);
+        if (len < 0) {
+            BIO_free(mem);
+            return -1;
+        }
+        if (len == 0)
+            break;
+        if (BIO_write(mem, tbuf, len) != len) {
+            BIO_free(mem);
+            return -1;
+        }
+        maxlen -= len;
+
+        if (maxlen == 0)
+            break;
+    }
+    ret = BIO_get_mem_data(mem, (char **)out);
+    BIO_set_flags(mem, BIO_FLAGS_MEM_RDONLY);
+    BIO_free(mem);
+    return ret;
+}
+
+int pkey_ctrl_string(EVP_PKEY_CTX *ctx, const char *value)
+{
+    int rv;
+    char *stmp, *vtmp = NULL;
+    stmp = OPENSSL_strdup(value);
+    if (!stmp)
+        return -1;
+    vtmp = strchr(stmp, ':');
+    if (vtmp) {
+        *vtmp = 0;
+        vtmp++;
+    }
+    rv = EVP_PKEY_CTX_ctrl_str(ctx, stmp, vtmp);
+    OPENSSL_free(stmp);
+    return rv;
+}
+
+static void nodes_print(const char *name, STACK_OF(X509_POLICY_NODE) *nodes)
+{
+    X509_POLICY_NODE *node;
+    int i;
+
+    BIO_printf(bio_err, "%s Policies:", name);
+    if (nodes) {
+        BIO_puts(bio_err, "\n");
+        for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++) {
+            node = sk_X509_POLICY_NODE_value(nodes, i);
+            X509_POLICY_NODE_print(bio_err, node, 2);
+        }
+    } else {
+        BIO_puts(bio_err, " <empty>\n");
+    }
+}
+
+void policies_print(X509_STORE_CTX *ctx)
+{
+    X509_POLICY_TREE *tree;
+    int explicit_policy;
+    tree = X509_STORE_CTX_get0_policy_tree(ctx);
+    explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
+
+    BIO_printf(bio_err, "Require explicit Policy: %s\n",
+               explicit_policy ? "True" : "False");
+
+    nodes_print("Authority", X509_policy_tree_get0_policies(tree));
+    nodes_print("User", X509_policy_tree_get0_user_policies(tree));
+}
+
+/*-
+ * next_protos_parse parses a comma separated list of strings into a string
+ * in a format suitable for passing to SSL_CTX_set_next_protos_advertised.
+ *   outlen: (output) set to the length of the resulting buffer on success.
+ *   err: (maybe NULL) on failure, an error message line is written to this BIO.
+ *   in: a NUL terminated string like "abc,def,ghi"
+ *
+ *   returns: a malloc'd buffer or NULL on failure.
+ */
+unsigned char *next_protos_parse(size_t *outlen, const char *in)
+{
+    size_t len;
+    unsigned char *out;
+    size_t i, start = 0;
+    size_t skipped = 0;
+
+    len = strlen(in);
+    if (len == 0 || len >= 65535)
+        return NULL;
+
+    out = app_malloc(len + 1, "NPN buffer");
+    for (i = 0; i <= len; ++i) {
+        if (i == len || in[i] == ',') {
+            /*
+             * Zero-length ALPN elements are invalid on the wire, we could be
+             * strict and reject the entire string, but just ignoring extra
+             * commas seems harmless and more friendly.
+             *
+             * Every comma we skip in this way puts the input buffer another
+             * byte ahead of the output buffer, so all stores into the output
+             * buffer need to be decremented by the number commas skipped.
+             */
+            if (i == start) {
+                ++start;
+                ++skipped;
+                continue;
+            }
+            if (i - start > 255) {
+                OPENSSL_free(out);
+                return NULL;
+            }
+            out[start-skipped] = (unsigned char)(i - start);
+            start = i + 1;
+        } else {
+            out[i + 1 - skipped] = in[i];
+        }
+    }
+
+    if (len <= skipped) {
+        OPENSSL_free(out);
+        return NULL;
+    }
+
+    *outlen = len + 1 - skipped;
+    return out;
+}
+
+void print_cert_checks(BIO *bio, X509 *x,
+                       const char *checkhost,
+                       const char *checkemail, const char *checkip)
+{
+    if (x == NULL)
+        return;
+    if (checkhost) {
+        BIO_printf(bio, "Hostname %s does%s match certificate\n",
+                   checkhost,
+                   X509_check_host(x, checkhost, 0, 0, NULL) == 1
+                       ? "" : " NOT");
+    }
+
+    if (checkemail) {
+        BIO_printf(bio, "Email %s does%s match certificate\n",
+                   checkemail, X509_check_email(x, checkemail, 0, 0)
+                   ? "" : " NOT");
+    }
+
+    if (checkip) {
+        BIO_printf(bio, "IP %s does%s match certificate\n",
+                   checkip, X509_check_ip_asc(x, checkip, 0) ? "" : " NOT");
+    }
+}
+
+/* Get first http URL from a DIST_POINT structure */
+
+static const char *get_dp_url(DIST_POINT *dp)
+{
+    GENERAL_NAMES *gens;
+    GENERAL_NAME *gen;
+    int i, gtype;
+    ASN1_STRING *uri;
+    if (!dp->distpoint || dp->distpoint->type != 0)
+        return NULL;
+    gens = dp->distpoint->name.fullname;
+    for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
+        gen = sk_GENERAL_NAME_value(gens, i);
+        uri = GENERAL_NAME_get0_value(gen, &gtype);
+        if (gtype == GEN_URI && ASN1_STRING_length(uri) > 6) {
+            const char *uptr = (const char *)ASN1_STRING_get0_data(uri);
+            if (strncmp(uptr, "http://", 7) == 0)
+                return uptr;
+        }
+    }
+    return NULL;
+}
+
+/*
+ * Look through a CRLDP structure and attempt to find an http URL to
+ * downloads a CRL from.
+ */
+
+static X509_CRL *load_crl_crldp(STACK_OF(DIST_POINT) *crldp)
+{
+    int i;
+    const char *urlptr = NULL;
+    for (i = 0; i < sk_DIST_POINT_num(crldp); i++) {
+        DIST_POINT *dp = sk_DIST_POINT_value(crldp, i);
+        urlptr = get_dp_url(dp);
+        if (urlptr)
+            return load_crl(urlptr, FORMAT_HTTP);
+    }
+    return NULL;
+}
+
+/*
+ * Example of downloading CRLs from CRLDP: not usable for real world as it
+ * always downloads, doesn't support non-blocking I/O and doesn't cache
+ * anything.
+ */
+
+static STACK_OF(X509_CRL) *crls_http_cb(X509_STORE_CTX *ctx, X509_NAME *nm)
+{
+    X509 *x;
+    STACK_OF(X509_CRL) *crls = NULL;
+    X509_CRL *crl;
+    STACK_OF(DIST_POINT) *crldp;
+
+    crls = sk_X509_CRL_new_null();
+    if (!crls)
+        return NULL;
+    x = X509_STORE_CTX_get_current_cert(ctx);
+    crldp = X509_get_ext_d2i(x, NID_crl_distribution_points, NULL, NULL);
+    crl = load_crl_crldp(crldp);
+    sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
+    if (!crl) {
+        sk_X509_CRL_free(crls);
+        return NULL;
+    }
+    sk_X509_CRL_push(crls, crl);
+    /* Try to download delta CRL */
+    crldp = X509_get_ext_d2i(x, NID_freshest_crl, NULL, NULL);
+    crl = load_crl_crldp(crldp);
+    sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
+    if (crl)
+        sk_X509_CRL_push(crls, crl);
+    return crls;
+}
+
+void store_setup_crl_download(X509_STORE *st)
+{
+    X509_STORE_set_lookup_crls_cb(st, crls_http_cb);
+}
+
+/*
+ * Platform-specific sections
+ */
+#if defined(_WIN32)
+# ifdef fileno
+#  undef fileno
+#  define fileno(a) (int)_fileno(a)
+# endif
+
+# include <windows.h>
+# include <tchar.h>
+
+static int WIN32_rename(const char *from, const char *to)
+{
+    TCHAR *tfrom = NULL, *tto;
+    DWORD err;
+    int ret = 0;
+
+    if (sizeof(TCHAR) == 1) {
+        tfrom = (TCHAR *)from;
+        tto = (TCHAR *)to;
+    } else {                    /* UNICODE path */
+
+        size_t i, flen = strlen(from) + 1, tlen = strlen(to) + 1;
+        tfrom = malloc(sizeof(*tfrom) * (flen + tlen));
+        if (tfrom == NULL)
+            goto err;
+        tto = tfrom + flen;
+# if !defined(_WIN32_WCE) || _WIN32_WCE>=101
+        if (!MultiByteToWideChar(CP_ACP, 0, from, flen, (WCHAR *)tfrom, flen))
+# endif
+            for (i = 0; i < flen; i++)
+                tfrom[i] = (TCHAR)from[i];
+# if !defined(_WIN32_WCE) || _WIN32_WCE>=101
+        if (!MultiByteToWideChar(CP_ACP, 0, to, tlen, (WCHAR *)tto, tlen))
+# endif
+            for (i = 0; i < tlen; i++)
+                tto[i] = (TCHAR)to[i];
+    }
+
+    if (MoveFile(tfrom, tto))
+        goto ok;
+    err = GetLastError();
+    if (err == ERROR_ALREADY_EXISTS || err == ERROR_FILE_EXISTS) {
+        if (DeleteFile(tto) && MoveFile(tfrom, tto))
+            goto ok;
+        err = GetLastError();
+    }
+    if (err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND)
+        errno = ENOENT;
+    else if (err == ERROR_ACCESS_DENIED)
+        errno = EACCES;
+    else
+        errno = EINVAL;         /* we could map more codes... */
+ err:
+    ret = -1;
+ ok:
+    if (tfrom != NULL && tfrom != (TCHAR *)from)
+        free(tfrom);
+    return ret;
+}
+#endif
+
+/* app_tminterval section */
+#if defined(_WIN32)
+double app_tminterval(int stop, int usertime)
+{
+    FILETIME now;
+    double ret = 0;
+    static ULARGE_INTEGER tmstart;
+    static int warning = 1;
+# ifdef _WIN32_WINNT
+    static HANDLE proc = NULL;
+
+    if (proc == NULL) {
+        if (check_winnt())
+            proc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE,
+                               GetCurrentProcessId());
+        if (proc == NULL)
+            proc = (HANDLE) - 1;
+    }
+
+    if (usertime && proc != (HANDLE) - 1) {
+        FILETIME junk;
+        GetProcessTimes(proc, &junk, &junk, &junk, &now);
+    } else
+# endif
+    {
+        SYSTEMTIME systime;
+
+        if (usertime && warning) {
+            BIO_printf(bio_err, "To get meaningful results, run "
+                       "this program on idle system.\n");
+            warning = 0;
+        }
+        GetSystemTime(&systime);
+        SystemTimeToFileTime(&systime, &now);
+    }
+
+    if (stop == TM_START) {
+        tmstart.u.LowPart = now.dwLowDateTime;
+        tmstart.u.HighPart = now.dwHighDateTime;
+    } else {
+        ULARGE_INTEGER tmstop;
+
+        tmstop.u.LowPart = now.dwLowDateTime;
+        tmstop.u.HighPart = now.dwHighDateTime;
+
+        ret = (__int64)(tmstop.QuadPart - tmstart.QuadPart) * 1e-7;
+    }
+
+    return ret;
+}
+#elif defined(OPENSSL_SYS_VXWORKS)
+# include <time.h>
+
+double app_tminterval(int stop, int usertime)
+{
+    double ret = 0;
+# ifdef CLOCK_REALTIME
+    static struct timespec tmstart;
+    struct timespec now;
+# else
+    static unsigned long tmstart;
+    unsigned long now;
+# endif
+    static int warning = 1;
+
+    if (usertime && warning) {
+        BIO_printf(bio_err, "To get meaningful results, run "
+                   "this program on idle system.\n");
+        warning = 0;
+    }
+# ifdef CLOCK_REALTIME
+    clock_gettime(CLOCK_REALTIME, &now);
+    if (stop == TM_START)
+        tmstart = now;
+    else
+        ret = ((now.tv_sec + now.tv_nsec * 1e-9)
+               - (tmstart.tv_sec + tmstart.tv_nsec * 1e-9));
+# else
+    now = tickGet();
+    if (stop == TM_START)
+        tmstart = now;
+    else
+        ret = (now - tmstart) / (double)sysClkRateGet();
+# endif
+    return ret;
+}
+
+#elif defined(OPENSSL_SYSTEM_VMS)
+# include <time.h>
+# include <times.h>
+
+double app_tminterval(int stop, int usertime)
+{
+    static clock_t tmstart;
+    double ret = 0;
+    clock_t now;
+# ifdef __TMS
+    struct tms rus;
+
+    now = times(&rus);
+    if (usertime)
+        now = rus.tms_utime;
+# else
+    if (usertime)
+        now = clock();          /* sum of user and kernel times */
+    else {
+        struct timeval tv;
+        gettimeofday(&tv, NULL);
+        now = (clock_t)((unsigned long long)tv.tv_sec * CLK_TCK +
+                        (unsigned long long)tv.tv_usec * (1000000 / CLK_TCK)
+            );
+    }
+# endif
+    if (stop == TM_START)
+        tmstart = now;
+    else
+        ret = (now - tmstart) / (double)(CLK_TCK);
+
+    return ret;
+}
+
+#elif defined(_SC_CLK_TCK)      /* by means of unistd.h */
+# include <sys/times.h>
+
+double app_tminterval(int stop, int usertime)
+{
+    double ret = 0;
+    struct tms rus;
+    clock_t now = times(&rus);
+    static clock_t tmstart;
+
+    if (usertime)
+        now = rus.tms_utime;
+
+    if (stop == TM_START) {
+        tmstart = now;
+    } else {
+        long int tck = sysconf(_SC_CLK_TCK);
+        ret = (now - tmstart) / (double)tck;
+    }
+
+    return ret;
+}
+
+#else
+# include <sys/time.h>
+# include <sys/resource.h>
+
+double app_tminterval(int stop, int usertime)
+{
+    double ret = 0;
+    struct rusage rus;
+    struct timeval now;
+    static struct timeval tmstart;
+
+    if (usertime)
+        getrusage(RUSAGE_SELF, &rus), now = rus.ru_utime;
+    else
+        gettimeofday(&now, NULL);
+
+    if (stop == TM_START)
+        tmstart = now;
+    else
+        ret = ((now.tv_sec + now.tv_usec * 1e-6)
+               - (tmstart.tv_sec + tmstart.tv_usec * 1e-6));
+
+    return ret;
+}
+#endif
+
+int app_access(const char* name, int flag)
+{
+#ifdef _WIN32
+    return _access(name, flag);
+#else
+    return access(name, flag);
+#endif
+}
+
+/* app_isdir section */
+#ifdef _WIN32
+int app_isdir(const char *name)
+{
+    DWORD attr;
+# if defined(UNICODE) || defined(_UNICODE)
+    size_t i, len_0 = strlen(name) + 1;
+    WCHAR tempname[MAX_PATH];
+
+    if (len_0 > MAX_PATH)
+        return -1;
+
+#  if !defined(_WIN32_WCE) || _WIN32_WCE>=101
+    if (!MultiByteToWideChar(CP_ACP, 0, name, len_0, tempname, MAX_PATH))
+#  endif
+        for (i = 0; i < len_0; i++)
+            tempname[i] = (WCHAR)name[i];
+
+    attr = GetFileAttributes(tempname);
+# else
+    attr = GetFileAttributes(name);
+# endif
+    if (attr == INVALID_FILE_ATTRIBUTES)
+        return -1;
+    return ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0);
+}
+#else
+# include <sys/stat.h>
+# ifndef S_ISDIR
+#  if defined(_S_IFMT) && defined(_S_IFDIR)
+#   define S_ISDIR(a)   (((a) & _S_IFMT) == _S_IFDIR)
+#  else
+#   define S_ISDIR(a)   (((a) & S_IFMT) == S_IFDIR)
+#  endif
+# endif
+
+int app_isdir(const char *name)
+{
+# if defined(S_ISDIR)
+    struct stat st;
+
+    if (stat(name, &st) == 0)
+        return S_ISDIR(st.st_mode);
+    else
+        return -1;
+# else
+    return -1;
+# endif
+}
+#endif
+
+/* raw_read|write section */
+#if defined(__VMS)
+# include "vms_term_sock.h"
+static int stdin_sock = -1;
+
+static void close_stdin_sock(void)
+{
+    TerminalSocket (TERM_SOCK_DELETE, &stdin_sock);
+}
+
+int fileno_stdin(void)
+{
+    if (stdin_sock == -1) {
+        TerminalSocket(TERM_SOCK_CREATE, &stdin_sock);
+        atexit(close_stdin_sock);
+    }
+
+    return stdin_sock;
+}
+#else
+int fileno_stdin(void)
+{
+    return fileno(stdin);
+}
+#endif
+
+int fileno_stdout(void)
+{
+    return fileno(stdout);
+}
+
+#if defined(_WIN32) && defined(STD_INPUT_HANDLE)
+int raw_read_stdin(void *buf, int siz)
+{
+    DWORD n;
+    if (ReadFile(GetStdHandle(STD_INPUT_HANDLE), buf, siz, &n, NULL))
+        return n;
+    else
+        return -1;
+}
+#elif defined(__VMS)
+# include <sys/socket.h>
+
+int raw_read_stdin(void *buf, int siz)
+{
+    return recv(fileno_stdin(), buf, siz, 0);
+}
+#else
+int raw_read_stdin(void *buf, int siz)
+{
+    return read(fileno_stdin(), buf, siz);
+}
+#endif
+
+#if defined(_WIN32) && defined(STD_OUTPUT_HANDLE)
+int raw_write_stdout(const void *buf, int siz)
+{
+    DWORD n;
+    if (WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buf, siz, &n, NULL))
+        return n;
+    else
+        return -1;
+}
+#else
+int raw_write_stdout(const void *buf, int siz)
+{
+    return write(fileno_stdout(), buf, siz);
+}
+#endif
+
+/*
+ * Centralized handling if input and output files with format specification
+ * The format is meant to show what the input and output is supposed to be,
+ * and is therefore a show of intent more than anything else.  However, it
+ * does impact behavior on some platform, such as differentiating between
+ * text and binary input/output on non-Unix platforms
+ */
+static int istext(int format)
+{
+    return (format & B_FORMAT_TEXT) == B_FORMAT_TEXT;
+}
+
+BIO *dup_bio_in(int format)
+{
+    return BIO_new_fp(stdin,
+                      BIO_NOCLOSE | (istext(format) ? BIO_FP_TEXT : 0));
+}
+
+static BIO_METHOD *prefix_method = NULL;
+
+BIO *dup_bio_out(int format)
+{
+    BIO *b = BIO_new_fp(stdout,
+                        BIO_NOCLOSE | (istext(format) ? BIO_FP_TEXT : 0));
+    void *prefix = NULL;
+
+#ifdef OPENSSL_SYS_VMS
+    if (istext(format))
+        b = BIO_push(BIO_new(BIO_f_linebuffer()), b);
+#endif
+
+    if (istext(format) && (prefix = getenv("HARNESS_OSSL_PREFIX")) != NULL) {
+        if (prefix_method == NULL)
+            prefix_method = apps_bf_prefix();
+        b = BIO_push(BIO_new(prefix_method), b);
+        BIO_ctrl(b, PREFIX_CTRL_SET_PREFIX, 0, prefix);
+    }
+
+    return b;
+}
+
+BIO *dup_bio_err(int format)
+{
+    BIO *b = BIO_new_fp(stderr,
+                        BIO_NOCLOSE | (istext(format) ? BIO_FP_TEXT : 0));
+#ifdef OPENSSL_SYS_VMS
+    if (istext(format))
+        b = BIO_push(BIO_new(BIO_f_linebuffer()), b);
+#endif
+    return b;
+}
+
+void destroy_prefix_method(void)
+{
+    BIO_meth_free(prefix_method);
+    prefix_method = NULL;
+}
+
+void unbuffer(FILE *fp)
+{
+/*
+ * On VMS, setbuf() will only take 32-bit pointers, and a compilation
+ * with /POINTER_SIZE=64 will give off a MAYLOSEDATA2 warning here.
+ * However, we trust that the C RTL will never give us a FILE pointer
+ * above the first 4 GB of memory, so we simply turn off the warning
+ * temporarily.
+ */
+#if defined(OPENSSL_SYS_VMS) && defined(__DECC)
+# pragma environment save
+# pragma message disable maylosedata2
+#endif
+    setbuf(fp, NULL);
+#if defined(OPENSSL_SYS_VMS) && defined(__DECC)
+# pragma environment restore
+#endif
+}
+
+static const char *modestr(char mode, int format)
+{
+    OPENSSL_assert(mode == 'a' || mode == 'r' || mode == 'w');
+
+    switch (mode) {
+    case 'a':
+        return istext(format) ? "a" : "ab";
+    case 'r':
+        return istext(format) ? "r" : "rb";
+    case 'w':
+        return istext(format) ? "w" : "wb";
+    }
+    /* The assert above should make sure we never reach this point */
+    return NULL;
+}
+
+static const char *modeverb(char mode)
+{
+    switch (mode) {
+    case 'a':
+        return "appending";
+    case 'r':
+        return "reading";
+    case 'w':
+        return "writing";
+    }
+    return "(doing something)";
+}
+
+/*
+ * Open a file for writing, owner-read-only.
+ */
+BIO *bio_open_owner(const char *filename, int format, int private)
+{
+    FILE *fp = NULL;
+    BIO *b = NULL;
+    int fd = -1, bflags, mode, textmode;
+
+    if (!private || filename == NULL || strcmp(filename, "-") == 0)
+        return bio_open_default(filename, 'w', format);
+
+    mode = O_WRONLY;
+#ifdef O_CREAT
+    mode |= O_CREAT;
+#endif
+#ifdef O_TRUNC
+    mode |= O_TRUNC;
+#endif
+    textmode = istext(format);
+    if (!textmode) {
+#ifdef O_BINARY
+        mode |= O_BINARY;
+#elif defined(_O_BINARY)
+        mode |= _O_BINARY;
+#endif
+    }
+
+#ifdef OPENSSL_SYS_VMS
+    /* VMS doesn't have O_BINARY, it just doesn't make sense.  But,
+     * it still needs to know that we're going binary, or fdopen()
+     * will fail with "invalid argument"...  so we tell VMS what the
+     * context is.
+     */
+    if (!textmode)
+        fd = open(filename, mode, 0600, "ctx=bin");
+    else
+#endif
+        fd = open(filename, mode, 0600);
+    if (fd < 0)
+        goto err;
+    fp = fdopen(fd, modestr('w', format));
+    if (fp == NULL)
+        goto err;
+    bflags = BIO_CLOSE;
+    if (textmode)
+        bflags |= BIO_FP_TEXT;
+    b = BIO_new_fp(fp, bflags);
+    if (b)
+        return b;
+
+ err:
+    BIO_printf(bio_err, "%s: Can't open \"%s\" for writing, %s\n",
+               opt_getprog(), filename, strerror(errno));
+    ERR_print_errors(bio_err);
+    /* If we have fp, then fdopen took over fd, so don't close both. */
+    if (fp)
+        fclose(fp);
+    else if (fd >= 0)
+        close(fd);
+    return NULL;
+}
+
+static BIO *bio_open_default_(const char *filename, char mode, int format,
+                              int quiet)
+{
+    BIO *ret;
+
+    if (filename == NULL || strcmp(filename, "-") == 0) {
+        ret = mode == 'r' ? dup_bio_in(format) : dup_bio_out(format);
+        if (quiet) {
+            ERR_clear_error();
+            return ret;
+        }
+        if (ret != NULL)
+            return ret;
+        BIO_printf(bio_err,
+                   "Can't open %s, %s\n",
+                   mode == 'r' ? "stdin" : "stdout", strerror(errno));
+    } else {
+        ret = BIO_new_file(filename, modestr(mode, format));
+        if (quiet) {
+            ERR_clear_error();
+            return ret;
+        }
+        if (ret != NULL)
+            return ret;
+        BIO_printf(bio_err,
+                   "Can't open %s for %s, %s\n",
+                   filename, modeverb(mode), strerror(errno));
+    }
+    ERR_print_errors(bio_err);
+    return NULL;
+}
+
+BIO *bio_open_default(const char *filename, char mode, int format)
+{
+    return bio_open_default_(filename, mode, format, 0);
+}
+
+BIO *bio_open_default_quiet(const char *filename, char mode, int format)
+{
+    return bio_open_default_(filename, mode, format, 1);
+}
+
+void wait_for_async(SSL *s)
+{
+    /* On Windows select only works for sockets, so we simply don't wait  */
+#ifndef OPENSSL_SYS_WINDOWS
+    int width = 0;
+    fd_set asyncfds;
+    OSSL_ASYNC_FD *fds;
+    size_t numfds;
+    size_t i;
+
+    if (!SSL_get_all_async_fds(s, NULL, &numfds))
+        return;
+    if (numfds == 0)
+        return;
+    fds = app_malloc(sizeof(OSSL_ASYNC_FD) * numfds, "allocate async fds");
+    if (!SSL_get_all_async_fds(s, fds, &numfds)) {
+        OPENSSL_free(fds);
+        return;
+    }
+
+    FD_ZERO(&asyncfds);
+    for (i = 0; i < numfds; i++) {
+        if (width <= (int)fds[i])
+            width = (int)fds[i] + 1;
+        openssl_fdset((int)fds[i], &asyncfds);
+    }
+    select(width, (void *)&asyncfds, NULL, NULL, NULL);
+    OPENSSL_free(fds);
+#endif
+}
+
+/* if OPENSSL_SYS_WINDOWS is defined then so is OPENSSL_SYS_MSDOS */
+#if defined(OPENSSL_SYS_MSDOS)
+int has_stdin_waiting(void)
+{
+# if defined(OPENSSL_SYS_WINDOWS)
+    HANDLE inhand = GetStdHandle(STD_INPUT_HANDLE);
+    DWORD events = 0;
+    INPUT_RECORD inputrec;
+    DWORD insize = 1;
+    BOOL peeked;
+
+    if (inhand == INVALID_HANDLE_VALUE) {
+        return 0;
+    }
+
+    peeked = PeekConsoleInput(inhand, &inputrec, insize, &events);
+    if (!peeked) {
+        /* Probably redirected input? _kbhit() does not work in this case */
+        if (!feof(stdin)) {
+            return 1;
+        }
+        return 0;
+    }
+# endif
+    return _kbhit();
+}
+#endif
+
+/* Corrupt a signature by modifying final byte */
+void corrupt_signature(const ASN1_STRING *signature)
+{
+        unsigned char *s = signature->data;
+        s[signature->length - 1] ^= 0x1;
+}
+
+int set_cert_times(X509 *x, const char *startdate, const char *enddate,
+                   int days)
+{
+    if (startdate == NULL || strcmp(startdate, "today") == 0) {
+        if (X509_gmtime_adj(X509_getm_notBefore(x), 0) == NULL)
+            return 0;
+    } else {
+        if (!ASN1_TIME_set_string_X509(X509_getm_notBefore(x), startdate))
+            return 0;
+    }
+    if (enddate == NULL) {
+        if (X509_time_adj_ex(X509_getm_notAfter(x), days, 0, NULL)
+            == NULL)
+            return 0;
+    } else if (!ASN1_TIME_set_string_X509(X509_getm_notAfter(x), enddate)) {
+        return 0;
+    }
+    return 1;
+}
+
+void make_uppercase(char *string)
+{
+    int i;
+
+    for (i = 0; string[i] != '\0'; i++)
+        string[i] = toupper((unsigned char)string[i]);
+}