intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 952 insertions, 0 deletions

diff --git a/contrib/libs/openssl/crypto/err/err.c b/contrib/libs/openssl/crypto/err/err.c
new file mode 100644
index 0000000000..1372d52f80
--- /dev/null
+++ b/contrib/libs/openssl/crypto/err/err.c
@@ -0,0 +1,952 @@
+/*
+ * Copyright 1995-2019 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
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include "crypto/cryptlib.h"
+#include "internal/err.h"
+#include "crypto/err.h"
+#include <openssl/err.h>
+#include <openssl/crypto.h>
+#include <openssl/buffer.h>
+#include <openssl/bio.h>
+#include <openssl/opensslconf.h>
+#include "internal/thread_once.h"
+#include "crypto/ctype.h"
+#include "internal/constant_time.h"
+#include "e_os.h"
+
+static int err_load_strings(const ERR_STRING_DATA *str);
+
+static void ERR_STATE_free(ERR_STATE *s);
+#ifndef OPENSSL_NO_ERR
+static ERR_STRING_DATA ERR_str_libraries[] = {
+    {ERR_PACK(ERR_LIB_NONE, 0, 0), "unknown library"},
+    {ERR_PACK(ERR_LIB_SYS, 0, 0), "system library"},
+    {ERR_PACK(ERR_LIB_BN, 0, 0), "bignum routines"},
+    {ERR_PACK(ERR_LIB_RSA, 0, 0), "rsa routines"},
+    {ERR_PACK(ERR_LIB_DH, 0, 0), "Diffie-Hellman routines"},
+    {ERR_PACK(ERR_LIB_EVP, 0, 0), "digital envelope routines"},
+    {ERR_PACK(ERR_LIB_BUF, 0, 0), "memory buffer routines"},
+    {ERR_PACK(ERR_LIB_OBJ, 0, 0), "object identifier routines"},
+    {ERR_PACK(ERR_LIB_PEM, 0, 0), "PEM routines"},
+    {ERR_PACK(ERR_LIB_DSA, 0, 0), "dsa routines"},
+    {ERR_PACK(ERR_LIB_X509, 0, 0), "x509 certificate routines"},
+    {ERR_PACK(ERR_LIB_ASN1, 0, 0), "asn1 encoding routines"},
+    {ERR_PACK(ERR_LIB_CONF, 0, 0), "configuration file routines"},
+    {ERR_PACK(ERR_LIB_CRYPTO, 0, 0), "common libcrypto routines"},
+    {ERR_PACK(ERR_LIB_EC, 0, 0), "elliptic curve routines"},
+    {ERR_PACK(ERR_LIB_ECDSA, 0, 0), "ECDSA routines"},
+    {ERR_PACK(ERR_LIB_ECDH, 0, 0), "ECDH routines"},
+    {ERR_PACK(ERR_LIB_SSL, 0, 0), "SSL routines"},
+    {ERR_PACK(ERR_LIB_BIO, 0, 0), "BIO routines"},
+    {ERR_PACK(ERR_LIB_PKCS7, 0, 0), "PKCS7 routines"},
+    {ERR_PACK(ERR_LIB_X509V3, 0, 0), "X509 V3 routines"},
+    {ERR_PACK(ERR_LIB_PKCS12, 0, 0), "PKCS12 routines"},
+    {ERR_PACK(ERR_LIB_RAND, 0, 0), "random number generator"},
+    {ERR_PACK(ERR_LIB_DSO, 0, 0), "DSO support routines"},
+    {ERR_PACK(ERR_LIB_TS, 0, 0), "time stamp routines"},
+    {ERR_PACK(ERR_LIB_ENGINE, 0, 0), "engine routines"},
+    {ERR_PACK(ERR_LIB_OCSP, 0, 0), "OCSP routines"},
+    {ERR_PACK(ERR_LIB_UI, 0, 0), "UI routines"},
+    {ERR_PACK(ERR_LIB_FIPS, 0, 0), "FIPS routines"},
+    {ERR_PACK(ERR_LIB_CMS, 0, 0), "CMS routines"},
+    {ERR_PACK(ERR_LIB_HMAC, 0, 0), "HMAC routines"},
+    {ERR_PACK(ERR_LIB_CT, 0, 0), "CT routines"},
+    {ERR_PACK(ERR_LIB_ASYNC, 0, 0), "ASYNC routines"},
+    {ERR_PACK(ERR_LIB_KDF, 0, 0), "KDF routines"},
+    {ERR_PACK(ERR_LIB_OSSL_STORE, 0, 0), "STORE routines"},
+    {ERR_PACK(ERR_LIB_SM2, 0, 0), "SM2 routines"},
+    {0, NULL},
+};
+
+static ERR_STRING_DATA ERR_str_functs[] = {
+    {ERR_PACK(0, SYS_F_FOPEN, 0), "fopen"},
+    {ERR_PACK(0, SYS_F_CONNECT, 0), "connect"},
+    {ERR_PACK(0, SYS_F_GETSERVBYNAME, 0), "getservbyname"},
+    {ERR_PACK(0, SYS_F_SOCKET, 0), "socket"},
+    {ERR_PACK(0, SYS_F_IOCTLSOCKET, 0), "ioctlsocket"},
+    {ERR_PACK(0, SYS_F_BIND, 0), "bind"},
+    {ERR_PACK(0, SYS_F_LISTEN, 0), "listen"},
+    {ERR_PACK(0, SYS_F_ACCEPT, 0), "accept"},
+# ifdef OPENSSL_SYS_WINDOWS
+    {ERR_PACK(0, SYS_F_WSASTARTUP, 0), "WSAstartup"},
+# endif
+    {ERR_PACK(0, SYS_F_OPENDIR, 0), "opendir"},
+    {ERR_PACK(0, SYS_F_FREAD, 0), "fread"},
+    {ERR_PACK(0, SYS_F_GETADDRINFO, 0), "getaddrinfo"},
+    {ERR_PACK(0, SYS_F_GETNAMEINFO, 0), "getnameinfo"},
+    {ERR_PACK(0, SYS_F_SETSOCKOPT, 0), "setsockopt"},
+    {ERR_PACK(0, SYS_F_GETSOCKOPT, 0), "getsockopt"},
+    {ERR_PACK(0, SYS_F_GETSOCKNAME, 0), "getsockname"},
+    {ERR_PACK(0, SYS_F_GETHOSTBYNAME, 0), "gethostbyname"},
+    {ERR_PACK(0, SYS_F_FFLUSH, 0), "fflush"},
+    {ERR_PACK(0, SYS_F_OPEN, 0), "open"},
+    {ERR_PACK(0, SYS_F_CLOSE, 0), "close"},
+    {ERR_PACK(0, SYS_F_IOCTL, 0), "ioctl"},
+    {ERR_PACK(0, SYS_F_STAT, 0), "stat"},
+    {ERR_PACK(0, SYS_F_FCNTL, 0), "fcntl"},
+    {ERR_PACK(0, SYS_F_FSTAT, 0), "fstat"},
+    {0, NULL},
+};
+
+static ERR_STRING_DATA ERR_str_reasons[] = {
+    {ERR_R_SYS_LIB, "system lib"},
+    {ERR_R_BN_LIB, "BN lib"},
+    {ERR_R_RSA_LIB, "RSA lib"},
+    {ERR_R_DH_LIB, "DH lib"},
+    {ERR_R_EVP_LIB, "EVP lib"},
+    {ERR_R_BUF_LIB, "BUF lib"},
+    {ERR_R_OBJ_LIB, "OBJ lib"},
+    {ERR_R_PEM_LIB, "PEM lib"},
+    {ERR_R_DSA_LIB, "DSA lib"},
+    {ERR_R_X509_LIB, "X509 lib"},
+    {ERR_R_ASN1_LIB, "ASN1 lib"},
+    {ERR_R_EC_LIB, "EC lib"},
+    {ERR_R_BIO_LIB, "BIO lib"},
+    {ERR_R_PKCS7_LIB, "PKCS7 lib"},
+    {ERR_R_X509V3_LIB, "X509V3 lib"},
+    {ERR_R_ENGINE_LIB, "ENGINE lib"},
+    {ERR_R_UI_LIB, "UI lib"},
+    {ERR_R_OSSL_STORE_LIB, "STORE lib"},
+    {ERR_R_ECDSA_LIB, "ECDSA lib"},
+
+    {ERR_R_NESTED_ASN1_ERROR, "nested asn1 error"},
+    {ERR_R_MISSING_ASN1_EOS, "missing asn1 eos"},
+
+    {ERR_R_FATAL, "fatal"},
+    {ERR_R_MALLOC_FAILURE, "malloc failure"},
+    {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED,
+     "called a function you should not call"},
+    {ERR_R_PASSED_NULL_PARAMETER, "passed a null parameter"},
+    {ERR_R_INTERNAL_ERROR, "internal error"},
+    {ERR_R_DISABLED, "called a function that was disabled at compile-time"},
+    {ERR_R_INIT_FAIL, "init fail"},
+    {ERR_R_OPERATION_FAIL, "operation fail"},
+
+    {0, NULL},
+};
+#endif
+
+static CRYPTO_ONCE err_init = CRYPTO_ONCE_STATIC_INIT;
+static int set_err_thread_local;
+static CRYPTO_THREAD_LOCAL err_thread_local;
+
+static CRYPTO_ONCE err_string_init = CRYPTO_ONCE_STATIC_INIT;
+static CRYPTO_RWLOCK *err_string_lock;
+
+static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
+
+/*
+ * The internal state
+ */
+
+static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL;
+static int int_err_library_number = ERR_LIB_USER;
+
+static unsigned long get_error_values(int inc, int top, const char **file,
+                                      int *line, const char **data,
+                                      int *flags);
+
+static unsigned long err_string_data_hash(const ERR_STRING_DATA *a)
+{
+    unsigned long ret, l;
+
+    l = a->error;
+    ret = l ^ ERR_GET_LIB(l) ^ ERR_GET_FUNC(l);
+    return (ret ^ ret % 19 * 13);
+}
+
+static int err_string_data_cmp(const ERR_STRING_DATA *a,
+                               const ERR_STRING_DATA *b)
+{
+    if (a->error == b->error)
+        return 0;
+    return a->error > b->error ? 1 : -1;
+}
+
+static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
+{
+    ERR_STRING_DATA *p = NULL;
+
+    CRYPTO_THREAD_read_lock(err_string_lock);
+    p = lh_ERR_STRING_DATA_retrieve(int_error_hash, d);
+    CRYPTO_THREAD_unlock(err_string_lock);
+
+    return p;
+}
+
+#ifndef OPENSSL_NO_ERR
+/* 2019-05-21: Russian and Ukrainian locales on Linux require more than 6,5 kB */
+# define SPACE_SYS_STR_REASONS 8 * 1024
+# define NUM_SYS_STR_REASONS 127
+
+static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
+/*
+ * SYS_str_reasons is filled with copies of strerror() results at
+ * initialization. 'errno' values up to 127 should cover all usual errors,
+ * others will be displayed numerically by ERR_error_string. It is crucial
+ * that we have something for each reason code that occurs in
+ * ERR_str_reasons, or bogus reason strings will be returned for SYSerr(),
+ * which always gets an errno value and never one of those 'standard' reason
+ * codes.
+ */
+
+static void build_SYS_str_reasons(void)
+{
+    /* OPENSSL_malloc cannot be used here, use static storage instead */
+    static char strerror_pool[SPACE_SYS_STR_REASONS];
+    char *cur = strerror_pool;
+    size_t cnt = 0;
+    static int init = 1;
+    int i;
+    int saveerrno = get_last_sys_error();
+
+    CRYPTO_THREAD_write_lock(err_string_lock);
+    if (!init) {
+        CRYPTO_THREAD_unlock(err_string_lock);
+        return;
+    }
+
+    for (i = 1; i <= NUM_SYS_STR_REASONS; i++) {
+        ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
+
+        str->error = ERR_PACK(ERR_LIB_SYS, 0, i);
+        /*
+         * If we have used up all the space in strerror_pool,
+         * there's no point in calling openssl_strerror_r()
+         */
+        if (str->string == NULL && cnt < sizeof(strerror_pool)) {
+            if (openssl_strerror_r(i, cur, sizeof(strerror_pool) - cnt)) {
+                size_t l = strlen(cur);
+
+                str->string = cur;
+                cnt += l;
+                cur += l;
+
+                /*
+                 * VMS has an unusual quirk of adding spaces at the end of
+                 * some (most? all?) messages. Lets trim them off.
+                 */
+                while (cur > strerror_pool && ossl_isspace(cur[-1])) {
+                    cur--;
+                    cnt--;
+                }
+                *cur++ = '\0';
+                cnt++;
+            }
+        }
+        if (str->string == NULL)
+            str->string = "unknown";
+    }
+
+    /*
+     * Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, as
+     * required by ERR_load_strings.
+     */
+
+    init = 0;
+
+    CRYPTO_THREAD_unlock(err_string_lock);
+    /* openssl_strerror_r could change errno, but we want to preserve it */
+    set_sys_error(saveerrno);
+    err_load_strings(SYS_str_reasons);
+}
+#endif
+
+#define err_clear_data(p, i) \
+        do { \
+            if ((p)->err_data_flags[i] & ERR_TXT_MALLOCED) {\
+                OPENSSL_free((p)->err_data[i]); \
+                (p)->err_data[i] = NULL; \
+            } \
+            (p)->err_data_flags[i] = 0; \
+        } while (0)
+
+#define err_clear(p, i) \
+        do { \
+            err_clear_data(p, i); \
+            (p)->err_flags[i] = 0; \
+            (p)->err_buffer[i] = 0; \
+            (p)->err_file[i] = NULL; \
+            (p)->err_line[i] = -1; \
+        } while (0)
+
+static void ERR_STATE_free(ERR_STATE *s)
+{
+    int i;
+
+    if (s == NULL)
+        return;
+    for (i = 0; i < ERR_NUM_ERRORS; i++) {
+        err_clear_data(s, i);
+    }
+    OPENSSL_free(s);
+}
+
+DEFINE_RUN_ONCE_STATIC(do_err_strings_init)
+{
+    if (!OPENSSL_init_crypto(0, NULL))
+        return 0;
+    err_string_lock = CRYPTO_THREAD_lock_new();
+    if (err_string_lock == NULL)
+        return 0;
+    int_error_hash = lh_ERR_STRING_DATA_new(err_string_data_hash,
+                                            err_string_data_cmp);
+    if (int_error_hash == NULL) {
+        CRYPTO_THREAD_lock_free(err_string_lock);
+        err_string_lock = NULL;
+        return 0;
+    }
+    return 1;
+}
+
+void err_cleanup(void)
+{
+    if (set_err_thread_local != 0)
+        CRYPTO_THREAD_cleanup_local(&err_thread_local);
+    CRYPTO_THREAD_lock_free(err_string_lock);
+    err_string_lock = NULL;
+    lh_ERR_STRING_DATA_free(int_error_hash);
+    int_error_hash = NULL;
+}
+
+/*
+ * Legacy; pack in the library.
+ */
+static void err_patch(int lib, ERR_STRING_DATA *str)
+{
+    unsigned long plib = ERR_PACK(lib, 0, 0);
+
+    for (; str->error != 0; str++)
+        str->error |= plib;
+}
+
+/*
+ * Hash in |str| error strings. Assumes the URN_ONCE was done.
+ */
+static int err_load_strings(const ERR_STRING_DATA *str)
+{
+    CRYPTO_THREAD_write_lock(err_string_lock);
+    for (; str->error; str++)
+        (void)lh_ERR_STRING_DATA_insert(int_error_hash,
+                                       (ERR_STRING_DATA *)str);
+    CRYPTO_THREAD_unlock(err_string_lock);
+    return 1;
+}
+
+int ERR_load_ERR_strings(void)
+{
+#ifndef OPENSSL_NO_ERR
+    if (!RUN_ONCE(&err_string_init, do_err_strings_init))
+        return 0;
+
+    err_load_strings(ERR_str_libraries);
+    err_load_strings(ERR_str_reasons);
+    err_patch(ERR_LIB_SYS, ERR_str_functs);
+    err_load_strings(ERR_str_functs);
+    build_SYS_str_reasons();
+#endif
+    return 1;
+}
+
+int ERR_load_strings(int lib, ERR_STRING_DATA *str)
+{
+    if (ERR_load_ERR_strings() == 0)
+        return 0;
+
+    err_patch(lib, str);
+    err_load_strings(str);
+    return 1;
+}
+
+int ERR_load_strings_const(const ERR_STRING_DATA *str)
+{
+    if (ERR_load_ERR_strings() == 0)
+        return 0;
+    err_load_strings(str);
+    return 1;
+}
+
+int ERR_unload_strings(int lib, ERR_STRING_DATA *str)
+{
+    if (!RUN_ONCE(&err_string_init, do_err_strings_init))
+        return 0;
+
+    CRYPTO_THREAD_write_lock(err_string_lock);
+    /*
+     * We don't need to ERR_PACK the lib, since that was done (to
+     * the table) when it was loaded.
+     */
+    for (; str->error; str++)
+        (void)lh_ERR_STRING_DATA_delete(int_error_hash, str);
+    CRYPTO_THREAD_unlock(err_string_lock);
+
+    return 1;
+}
+
+void err_free_strings_int(void)
+{
+    if (!RUN_ONCE(&err_string_init, do_err_strings_init))
+        return;
+}
+
+/********************************************************/
+
+void ERR_put_error(int lib, int func, int reason, const char *file, int line)
+{
+    ERR_STATE *es;
+
+#ifdef _OSD_POSIX
+    /*
+     * In the BS2000-OSD POSIX subsystem, the compiler generates path names
+     * in the form "*POSIX(/etc/passwd)". This dirty hack strips them to
+     * something sensible. @@@ We shouldn't modify a const string, though.
+     */
+    if (strncmp(file, "*POSIX(", sizeof("*POSIX(") - 1) == 0) {
+        char *end;
+
+        /* Skip the "*POSIX(" prefix */
+        file += sizeof("*POSIX(") - 1;
+        end = &file[strlen(file) - 1];
+        if (*end == ')')
+            *end = '\0';
+        /* Optional: use the basename of the path only. */
+        if ((end = strrchr(file, '/')) != NULL)
+            file = &end[1];
+    }
+#endif
+    es = ERR_get_state();
+    if (es == NULL)
+        return;
+
+    es->top = (es->top + 1) % ERR_NUM_ERRORS;
+    if (es->top == es->bottom)
+        es->bottom = (es->bottom + 1) % ERR_NUM_ERRORS;
+    es->err_flags[es->top] = 0;
+    es->err_buffer[es->top] = ERR_PACK(lib, func, reason);
+    es->err_file[es->top] = file;
+    es->err_line[es->top] = line;
+    err_clear_data(es, es->top);
+}
+
+void ERR_clear_error(void)
+{
+    int i;
+    ERR_STATE *es;
+
+    es = ERR_get_state();
+    if (es == NULL)
+        return;
+
+    for (i = 0; i < ERR_NUM_ERRORS; i++) {
+        err_clear(es, i);
+    }
+    es->top = es->bottom = 0;
+}
+
+unsigned long ERR_get_error(void)
+{
+    return get_error_values(1, 0, NULL, NULL, NULL, NULL);
+}
+
+unsigned long ERR_get_error_line(const char **file, int *line)
+{
+    return get_error_values(1, 0, file, line, NULL, NULL);
+}
+
+unsigned long ERR_get_error_line_data(const char **file, int *line,
+                                      const char **data, int *flags)
+{
+    return get_error_values(1, 0, file, line, data, flags);
+}
+
+unsigned long ERR_peek_error(void)
+{
+    return get_error_values(0, 0, NULL, NULL, NULL, NULL);
+}
+
+unsigned long ERR_peek_error_line(const char **file, int *line)
+{
+    return get_error_values(0, 0, file, line, NULL, NULL);
+}
+
+unsigned long ERR_peek_error_line_data(const char **file, int *line,
+                                       const char **data, int *flags)
+{
+    return get_error_values(0, 0, file, line, data, flags);
+}
+
+unsigned long ERR_peek_last_error(void)
+{
+    return get_error_values(0, 1, NULL, NULL, NULL, NULL);
+}
+
+unsigned long ERR_peek_last_error_line(const char **file, int *line)
+{
+    return get_error_values(0, 1, file, line, NULL, NULL);
+}
+
+unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
+                                            const char **data, int *flags)
+{
+    return get_error_values(0, 1, file, line, data, flags);
+}
+
+static unsigned long get_error_values(int inc, int top, const char **file,
+                                      int *line, const char **data,
+                                      int *flags)
+{
+    int i = 0;
+    ERR_STATE *es;
+    unsigned long ret;
+
+    es = ERR_get_state();
+    if (es == NULL)
+        return 0;
+
+    if (inc && top) {
+        if (file)
+            *file = "";
+        if (line)
+            *line = 0;
+        if (data)
+            *data = "";
+        if (flags)
+            *flags = 0;
+
+        return ERR_R_INTERNAL_ERROR;
+    }
+
+    while (es->bottom != es->top) {
+        if (es->err_flags[es->top] & ERR_FLAG_CLEAR) {
+            err_clear(es, es->top);
+            es->top = es->top > 0 ? es->top - 1 : ERR_NUM_ERRORS - 1;
+            continue;
+        }
+        i = (es->bottom + 1) % ERR_NUM_ERRORS;
+        if (es->err_flags[i] & ERR_FLAG_CLEAR) {
+            es->bottom = i;
+            err_clear(es, es->bottom);
+            continue;
+        }
+        break;
+    }
+
+    if (es->bottom == es->top)
+        return 0;
+
+    if (top)
+        i = es->top;            /* last error */
+    else
+        i = (es->bottom + 1) % ERR_NUM_ERRORS; /* first error */
+
+    ret = es->err_buffer[i];
+    if (inc) {
+        es->bottom = i;
+        es->err_buffer[i] = 0;
+    }
+
+    if (file != NULL && line != NULL) {
+        if (es->err_file[i] == NULL) {
+            *file = "NA";
+            *line = 0;
+        } else {
+            *file = es->err_file[i];
+            *line = es->err_line[i];
+        }
+    }
+
+    if (data == NULL) {
+        if (inc) {
+            err_clear_data(es, i);
+        }
+    } else {
+        if (es->err_data[i] == NULL) {
+            *data = "";
+            if (flags != NULL)
+                *flags = 0;
+        } else {
+            *data = es->err_data[i];
+            if (flags != NULL)
+                *flags = es->err_data_flags[i];
+        }
+    }
+    return ret;
+}
+
+void ERR_error_string_n(unsigned long e, char *buf, size_t len)
+{
+    char lsbuf[64], fsbuf[64], rsbuf[64];
+    const char *ls, *fs, *rs;
+    unsigned long l, f, r;
+
+    if (len == 0)
+        return;
+
+    l = ERR_GET_LIB(e);
+    ls = ERR_lib_error_string(e);
+    if (ls == NULL) {
+        BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
+        ls = lsbuf;
+    }
+
+    fs = ERR_func_error_string(e);
+    f = ERR_GET_FUNC(e);
+    if (fs == NULL) {
+        BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
+        fs = fsbuf;
+    }
+
+    rs = ERR_reason_error_string(e);
+    r = ERR_GET_REASON(e);
+    if (rs == NULL) {
+        BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
+        rs = rsbuf;
+    }
+
+    BIO_snprintf(buf, len, "error:%08lX:%s:%s:%s", e, ls, fs, rs);
+    if (strlen(buf) == len - 1) {
+        /* Didn't fit; use a minimal format. */
+        BIO_snprintf(buf, len, "err:%lx:%lx:%lx:%lx", e, l, f, r);
+    }
+}
+
+/*
+ * ERR_error_string_n should be used instead for ret != NULL as
+ * ERR_error_string cannot know how large the buffer is
+ */
+char *ERR_error_string(unsigned long e, char *ret)
+{
+    static char buf[256];
+
+    if (ret == NULL)
+        ret = buf;
+    ERR_error_string_n(e, ret, (int)sizeof(buf));
+    return ret;
+}
+
+const char *ERR_lib_error_string(unsigned long e)
+{
+    ERR_STRING_DATA d, *p;
+    unsigned long l;
+
+    if (!RUN_ONCE(&err_string_init, do_err_strings_init)) {
+        return NULL;
+    }
+
+    l = ERR_GET_LIB(e);
+    d.error = ERR_PACK(l, 0, 0);
+    p = int_err_get_item(&d);
+    return ((p == NULL) ? NULL : p->string);
+}
+
+const char *ERR_func_error_string(unsigned long e)
+{
+    ERR_STRING_DATA d, *p;
+    unsigned long l, f;
+
+    if (!RUN_ONCE(&err_string_init, do_err_strings_init)) {
+        return NULL;
+    }
+
+    l = ERR_GET_LIB(e);
+    f = ERR_GET_FUNC(e);
+    d.error = ERR_PACK(l, f, 0);
+    p = int_err_get_item(&d);
+    return ((p == NULL) ? NULL : p->string);
+}
+
+const char *ERR_reason_error_string(unsigned long e)
+{
+    ERR_STRING_DATA d, *p = NULL;
+    unsigned long l, r;
+
+    if (!RUN_ONCE(&err_string_init, do_err_strings_init)) {
+        return NULL;
+    }
+
+    l = ERR_GET_LIB(e);
+    r = ERR_GET_REASON(e);
+    d.error = ERR_PACK(l, 0, r);
+    p = int_err_get_item(&d);
+    if (!p) {
+        d.error = ERR_PACK(0, 0, r);
+        p = int_err_get_item(&d);
+    }
+    return ((p == NULL) ? NULL : p->string);
+}
+
+void err_delete_thread_state(void)
+{
+    ERR_STATE *state = CRYPTO_THREAD_get_local(&err_thread_local);
+    if (state == NULL)
+        return;
+
+    CRYPTO_THREAD_set_local(&err_thread_local, NULL);
+    ERR_STATE_free(state);
+}
+
+#if OPENSSL_API_COMPAT < 0x10100000L
+void ERR_remove_thread_state(void *dummy)
+{
+}
+#endif
+
+#if OPENSSL_API_COMPAT < 0x10000000L
+void ERR_remove_state(unsigned long pid)
+{
+}
+#endif
+
+DEFINE_RUN_ONCE_STATIC(err_do_init)
+{
+    set_err_thread_local = 1;
+    return CRYPTO_THREAD_init_local(&err_thread_local, NULL);
+}
+
+ERR_STATE *ERR_get_state(void)
+{
+    ERR_STATE *state;
+    int saveerrno = get_last_sys_error();
+
+    if (!OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY, NULL))
+        return NULL;
+
+    if (!RUN_ONCE(&err_init, err_do_init))
+        return NULL;
+
+    state = CRYPTO_THREAD_get_local(&err_thread_local);
+    if (state == (ERR_STATE*)-1)
+        return NULL;
+
+    if (state == NULL) {
+        if (!CRYPTO_THREAD_set_local(&err_thread_local, (ERR_STATE*)-1))
+            return NULL;
+
+        if ((state = OPENSSL_zalloc(sizeof(*state))) == NULL) {
+            CRYPTO_THREAD_set_local(&err_thread_local, NULL);
+            return NULL;
+        }
+
+        if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE)
+                || !CRYPTO_THREAD_set_local(&err_thread_local, state)) {
+            ERR_STATE_free(state);
+            CRYPTO_THREAD_set_local(&err_thread_local, NULL);
+            return NULL;
+        }
+
+        /* Ignore failures from these */
+        OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
+    }
+
+    set_sys_error(saveerrno);
+    return state;
+}
+
+/*
+ * err_shelve_state returns the current thread local error state
+ * and freezes the error module until err_unshelve_state is called.
+ */
+int err_shelve_state(void **state)
+{
+    int saveerrno = get_last_sys_error();
+
+    /*
+     * Note, at present our only caller is OPENSSL_init_crypto(), indirectly
+     * via ossl_init_load_crypto_nodelete(), by which point the requested
+     * "base" initialization has already been performed, so the below call is a
+     * NOOP, that re-enters OPENSSL_init_crypto() only to quickly return.
+     *
+     * If are no other valid callers of this function, the call below can be
+     * removed, avoiding the re-entry into OPENSSL_init_crypto().  If there are
+     * potential uses that are not from inside OPENSSL_init_crypto(), then this
+     * call is needed, but some care is required to make sure that the re-entry
+     * remains a NOOP.
+     */
+    if (!OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY, NULL))
+        return 0;
+
+    if (!RUN_ONCE(&err_init, err_do_init))
+        return 0;
+
+    *state = CRYPTO_THREAD_get_local(&err_thread_local);
+    if (!CRYPTO_THREAD_set_local(&err_thread_local, (ERR_STATE*)-1))
+        return 0;
+
+    set_sys_error(saveerrno);
+    return 1;
+}
+
+/*
+ * err_unshelve_state restores the error state that was returned
+ * by err_shelve_state previously.
+ */
+void err_unshelve_state(void* state)
+{
+    if (state != (void*)-1)
+        CRYPTO_THREAD_set_local(&err_thread_local, (ERR_STATE*)state);
+}
+
+int ERR_get_next_error_library(void)
+{
+    int ret;
+
+    if (!RUN_ONCE(&err_string_init, do_err_strings_init))
+        return 0;
+
+    CRYPTO_THREAD_write_lock(err_string_lock);
+    ret = int_err_library_number++;
+    CRYPTO_THREAD_unlock(err_string_lock);
+    return ret;
+}
+
+static int err_set_error_data_int(char *data, int flags)
+{
+    ERR_STATE *es;
+    int i;
+
+    es = ERR_get_state();
+    if (es == NULL)
+        return 0;
+
+    i = es->top;
+
+    err_clear_data(es, i);
+    es->err_data[i] = data;
+    es->err_data_flags[i] = flags;
+
+    return 1;
+}
+
+void ERR_set_error_data(char *data, int flags)
+{
+    /*
+     * This function is void so we cannot propagate the error return. Since it
+     * is also in the public API we can't change the return type.
+     */
+    err_set_error_data_int(data, flags);
+}
+
+void ERR_add_error_data(int num, ...)
+{
+    va_list args;
+    va_start(args, num);
+    ERR_add_error_vdata(num, args);
+    va_end(args);
+}
+
+void ERR_add_error_vdata(int num, va_list args)
+{
+    int i, n, s;
+    char *str, *p, *a;
+
+    s = 80;
+    if ((str = OPENSSL_malloc(s + 1)) == NULL) {
+        /* ERRerr(ERR_F_ERR_ADD_ERROR_VDATA, ERR_R_MALLOC_FAILURE); */
+        return;
+    }
+    str[0] = '\0';
+
+    n = 0;
+    for (i = 0; i < num; i++) {
+        a = va_arg(args, char *);
+        if (a == NULL)
+            a = "<NULL>";
+        n += strlen(a);
+        if (n > s) {
+            s = n + 20;
+            p = OPENSSL_realloc(str, s + 1);
+            if (p == NULL) {
+                OPENSSL_free(str);
+                return;
+            }
+            str = p;
+        }
+        OPENSSL_strlcat(str, a, (size_t)s + 1);
+    }
+    if (!err_set_error_data_int(str, ERR_TXT_MALLOCED | ERR_TXT_STRING))
+        OPENSSL_free(str);
+}
+
+int ERR_set_mark(void)
+{
+    ERR_STATE *es;
+
+    es = ERR_get_state();
+    if (es == NULL)
+        return 0;
+
+    if (es->bottom == es->top)
+        return 0;
+    es->err_flags[es->top] |= ERR_FLAG_MARK;
+    return 1;
+}
+
+int ERR_pop_to_mark(void)
+{
+    ERR_STATE *es;
+
+    es = ERR_get_state();
+    if (es == NULL)
+        return 0;
+
+    while (es->bottom != es->top
+           && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0) {
+        err_clear(es, es->top);
+        es->top = es->top > 0 ? es->top - 1 : ERR_NUM_ERRORS - 1;
+    }
+
+    if (es->bottom == es->top)
+        return 0;
+    es->err_flags[es->top] &= ~ERR_FLAG_MARK;
+    return 1;
+}
+
+int ERR_clear_last_mark(void)
+{
+    ERR_STATE *es;
+    int top;
+
+    es = ERR_get_state();
+    if (es == NULL)
+        return 0;
+
+    top = es->top;
+    while (es->bottom != top
+           && (es->err_flags[top] & ERR_FLAG_MARK) == 0) {
+        top = top > 0 ? top - 1 : ERR_NUM_ERRORS - 1;
+    }
+
+    if (es->bottom == top)
+        return 0;
+    es->err_flags[top] &= ~ERR_FLAG_MARK;
+    return 1;
+}
+
+void err_clear_last_constant_time(int clear)
+{
+    ERR_STATE *es;
+    int top;
+
+    es = ERR_get_state();
+    if (es == NULL)
+        return;
+
+    top = es->top;
+
+    /*
+     * Flag error as cleared but remove it elsewhere to avoid two errors
+     * accessing the same error stack location, revealing timing information.
+     */
+    clear = constant_time_select_int(constant_time_eq_int(clear, 0),
+                                     0, ERR_FLAG_CLEAR);
+    es->err_flags[top] |= clear;
+}