e6e9170d6e
Based on the description in https://github.com/openssl/openssl/pull/5757, this re-implements the "allow NULL to be passed" behavior of a number of xxx_free routines. I also fixed up some egregious formatting errors that were nearby. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/5761)
820 lines
22 KiB
C
820 lines
22 KiB
C
/*
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* Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include "internal/cryptlib_int.h"
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#include "internal/err.h"
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#include "internal/err_int.h"
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#include <openssl/err.h>
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#include <openssl/crypto.h>
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#include <openssl/buffer.h>
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#include <openssl/bio.h>
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#include <openssl/opensslconf.h>
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#include "internal/thread_once.h"
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static int err_load_strings(const ERR_STRING_DATA *str);
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static void ERR_STATE_free(ERR_STATE *s);
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#ifndef OPENSSL_NO_ERR
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static ERR_STRING_DATA ERR_str_libraries[] = {
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{ERR_PACK(ERR_LIB_NONE, 0, 0), "unknown library"},
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{ERR_PACK(ERR_LIB_SYS, 0, 0), "system library"},
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{ERR_PACK(ERR_LIB_BN, 0, 0), "bignum routines"},
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{ERR_PACK(ERR_LIB_RSA, 0, 0), "rsa routines"},
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{ERR_PACK(ERR_LIB_DH, 0, 0), "Diffie-Hellman routines"},
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{ERR_PACK(ERR_LIB_EVP, 0, 0), "digital envelope routines"},
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{ERR_PACK(ERR_LIB_BUF, 0, 0), "memory buffer routines"},
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{ERR_PACK(ERR_LIB_OBJ, 0, 0), "object identifier routines"},
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{ERR_PACK(ERR_LIB_PEM, 0, 0), "PEM routines"},
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{ERR_PACK(ERR_LIB_DSA, 0, 0), "dsa routines"},
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{ERR_PACK(ERR_LIB_X509, 0, 0), "x509 certificate routines"},
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{ERR_PACK(ERR_LIB_ASN1, 0, 0), "asn1 encoding routines"},
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{ERR_PACK(ERR_LIB_CONF, 0, 0), "configuration file routines"},
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{ERR_PACK(ERR_LIB_CRYPTO, 0, 0), "common libcrypto routines"},
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{ERR_PACK(ERR_LIB_EC, 0, 0), "elliptic curve routines"},
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{ERR_PACK(ERR_LIB_ECDSA, 0, 0), "ECDSA routines"},
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{ERR_PACK(ERR_LIB_ECDH, 0, 0), "ECDH routines"},
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{ERR_PACK(ERR_LIB_SSL, 0, 0), "SSL routines"},
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{ERR_PACK(ERR_LIB_BIO, 0, 0), "BIO routines"},
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{ERR_PACK(ERR_LIB_PKCS7, 0, 0), "PKCS7 routines"},
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{ERR_PACK(ERR_LIB_X509V3, 0, 0), "X509 V3 routines"},
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{ERR_PACK(ERR_LIB_PKCS12, 0, 0), "PKCS12 routines"},
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{ERR_PACK(ERR_LIB_RAND, 0, 0), "random number generator"},
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{ERR_PACK(ERR_LIB_DSO, 0, 0), "DSO support routines"},
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{ERR_PACK(ERR_LIB_TS, 0, 0), "time stamp routines"},
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{ERR_PACK(ERR_LIB_ENGINE, 0, 0), "engine routines"},
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{ERR_PACK(ERR_LIB_OCSP, 0, 0), "OCSP routines"},
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{ERR_PACK(ERR_LIB_UI, 0, 0), "UI routines"},
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{ERR_PACK(ERR_LIB_FIPS, 0, 0), "FIPS routines"},
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{ERR_PACK(ERR_LIB_CMS, 0, 0), "CMS routines"},
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{ERR_PACK(ERR_LIB_HMAC, 0, 0), "HMAC routines"},
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{ERR_PACK(ERR_LIB_CT, 0, 0), "CT routines"},
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{ERR_PACK(ERR_LIB_ASYNC, 0, 0), "ASYNC routines"},
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{ERR_PACK(ERR_LIB_KDF, 0, 0), "KDF routines"},
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{ERR_PACK(ERR_LIB_OSSL_STORE, 0, 0), "STORE routines"},
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{ERR_PACK(ERR_LIB_SM2, 0, 0), "SM2 routines"},
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{0, NULL},
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};
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static ERR_STRING_DATA ERR_str_functs[] = {
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{ERR_PACK(0, SYS_F_FOPEN, 0), "fopen"},
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{ERR_PACK(0, SYS_F_CONNECT, 0), "connect"},
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{ERR_PACK(0, SYS_F_GETSERVBYNAME, 0), "getservbyname"},
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{ERR_PACK(0, SYS_F_SOCKET, 0), "socket"},
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{ERR_PACK(0, SYS_F_IOCTLSOCKET, 0), "ioctlsocket"},
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{ERR_PACK(0, SYS_F_BIND, 0), "bind"},
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{ERR_PACK(0, SYS_F_LISTEN, 0), "listen"},
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{ERR_PACK(0, SYS_F_ACCEPT, 0), "accept"},
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# ifdef OPENSSL_SYS_WINDOWS
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{ERR_PACK(0, SYS_F_WSASTARTUP, 0), "WSAstartup"},
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# endif
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{ERR_PACK(0, SYS_F_OPENDIR, 0), "opendir"},
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{ERR_PACK(0, SYS_F_FREAD, 0), "fread"},
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{ERR_PACK(0, SYS_F_GETADDRINFO, 0), "getaddrinfo"},
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{ERR_PACK(0, SYS_F_GETNAMEINFO, 0), "getnameinfo"},
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{ERR_PACK(0, SYS_F_SETSOCKOPT, 0), "setsockopt"},
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{ERR_PACK(0, SYS_F_GETSOCKOPT, 0), "getsockopt"},
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{ERR_PACK(0, SYS_F_GETSOCKNAME, 0), "getsockname"},
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{ERR_PACK(0, SYS_F_GETHOSTBYNAME, 0), "gethostbyname"},
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{ERR_PACK(0, SYS_F_FFLUSH, 0), "fflush"},
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{ERR_PACK(0, SYS_F_OPEN, 0), "open"},
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{ERR_PACK(0, SYS_F_CLOSE, 0), "close"},
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{ERR_PACK(0, SYS_F_IOCTL, 0), "ioctl"},
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{ERR_PACK(0, SYS_F_STAT, 0), "stat"},
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{ERR_PACK(0, SYS_F_FCNTL, 0), "fcntl"},
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{ERR_PACK(0, SYS_F_FSTAT, 0), "fstat"},
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{0, NULL},
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};
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static ERR_STRING_DATA ERR_str_reasons[] = {
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{ERR_R_SYS_LIB, "system lib"},
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{ERR_R_BN_LIB, "BN lib"},
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{ERR_R_RSA_LIB, "RSA lib"},
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{ERR_R_DH_LIB, "DH lib"},
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{ERR_R_EVP_LIB, "EVP lib"},
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{ERR_R_BUF_LIB, "BUF lib"},
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{ERR_R_OBJ_LIB, "OBJ lib"},
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{ERR_R_PEM_LIB, "PEM lib"},
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{ERR_R_DSA_LIB, "DSA lib"},
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{ERR_R_X509_LIB, "X509 lib"},
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{ERR_R_ASN1_LIB, "ASN1 lib"},
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{ERR_R_EC_LIB, "EC lib"},
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{ERR_R_BIO_LIB, "BIO lib"},
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{ERR_R_PKCS7_LIB, "PKCS7 lib"},
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{ERR_R_X509V3_LIB, "X509V3 lib"},
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{ERR_R_ENGINE_LIB, "ENGINE lib"},
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{ERR_R_UI_LIB, "UI lib"},
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{ERR_R_OSSL_STORE_LIB, "STORE lib"},
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{ERR_R_ECDSA_LIB, "ECDSA lib"},
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{ERR_R_NESTED_ASN1_ERROR, "nested asn1 error"},
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{ERR_R_MISSING_ASN1_EOS, "missing asn1 eos"},
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{ERR_R_FATAL, "fatal"},
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{ERR_R_MALLOC_FAILURE, "malloc failure"},
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{ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED,
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"called a function you should not call"},
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{ERR_R_PASSED_NULL_PARAMETER, "passed a null parameter"},
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{ERR_R_INTERNAL_ERROR, "internal error"},
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{ERR_R_DISABLED, "called a function that was disabled at compile-time"},
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{ERR_R_INIT_FAIL, "init fail"},
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{ERR_R_OPERATION_FAIL, "operation fail"},
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{0, NULL},
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};
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#endif
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static CRYPTO_ONCE err_init = CRYPTO_ONCE_STATIC_INIT;
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static int set_err_thread_local;
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static CRYPTO_THREAD_LOCAL err_thread_local;
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static CRYPTO_ONCE err_string_init = CRYPTO_ONCE_STATIC_INIT;
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static CRYPTO_RWLOCK *err_string_lock;
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static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
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/*
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* The internal state
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*/
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static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL;
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static int int_err_library_number = ERR_LIB_USER;
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static unsigned long get_error_values(int inc, int top, const char **file,
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int *line, const char **data,
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int *flags);
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static unsigned long err_string_data_hash(const ERR_STRING_DATA *a)
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{
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unsigned long ret, l;
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l = a->error;
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ret = l ^ ERR_GET_LIB(l) ^ ERR_GET_FUNC(l);
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return (ret ^ ret % 19 * 13);
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}
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static int err_string_data_cmp(const ERR_STRING_DATA *a,
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const ERR_STRING_DATA *b)
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{
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if (a->error == b->error)
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return 0;
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return a->error > b->error ? 1 : -1;
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}
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static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
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{
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ERR_STRING_DATA *p = NULL;
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CRYPTO_THREAD_read_lock(err_string_lock);
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p = lh_ERR_STRING_DATA_retrieve(int_error_hash, d);
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CRYPTO_THREAD_unlock(err_string_lock);
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return p;
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}
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#ifndef OPENSSL_NO_ERR
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# define NUM_SYS_STR_REASONS 127
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# define LEN_SYS_STR_REASON 32
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static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
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/*
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* SYS_str_reasons is filled with copies of strerror() results at
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* initialization. 'errno' values up to 127 should cover all usual errors,
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* others will be displayed numerically by ERR_error_string. It is crucial
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* that we have something for each reason code that occurs in
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* ERR_str_reasons, or bogus reason strings will be returned for SYSerr(),
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* which always gets an errno value and never one of those 'standard' reason
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* codes.
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*/
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static void build_SYS_str_reasons(void)
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{
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/* OPENSSL_malloc cannot be used here, use static storage instead */
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static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
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static int init = 1;
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int i;
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CRYPTO_THREAD_write_lock(err_string_lock);
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if (!init) {
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CRYPTO_THREAD_unlock(err_string_lock);
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return;
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}
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for (i = 1; i <= NUM_SYS_STR_REASONS; i++) {
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ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
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str->error = ERR_PACK(ERR_LIB_SYS, 0, i);
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if (str->string == NULL) {
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char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
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if (openssl_strerror_r(i, *dest, sizeof(*dest)))
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str->string = *dest;
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}
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if (str->string == NULL)
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str->string = "unknown";
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}
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/*
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* Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, as
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* required by ERR_load_strings.
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*/
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init = 0;
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CRYPTO_THREAD_unlock(err_string_lock);
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err_load_strings(SYS_str_reasons);
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}
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#endif
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#define err_clear_data(p, i) \
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do { \
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if ((p)->err_data_flags[i] & ERR_TXT_MALLOCED) {\
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OPENSSL_free((p)->err_data[i]); \
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(p)->err_data[i] = NULL; \
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} \
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(p)->err_data_flags[i] = 0; \
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} while (0)
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#define err_clear(p, i) \
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do { \
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err_clear_data(p, i); \
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(p)->err_flags[i] = 0; \
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(p)->err_buffer[i] = 0; \
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(p)->err_file[i] = NULL; \
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(p)->err_line[i] = -1; \
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} while (0)
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static void ERR_STATE_free(ERR_STATE *s)
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{
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int i;
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if (s == NULL)
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return;
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for (i = 0; i < ERR_NUM_ERRORS; i++) {
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err_clear_data(s, i);
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}
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OPENSSL_free(s);
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}
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DEFINE_RUN_ONCE_STATIC(do_err_strings_init)
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{
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OPENSSL_init_crypto(0, NULL);
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err_string_lock = CRYPTO_THREAD_lock_new();
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int_error_hash = lh_ERR_STRING_DATA_new(err_string_data_hash,
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err_string_data_cmp);
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return err_string_lock != NULL && int_error_hash != NULL;
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}
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void err_cleanup(void)
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{
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if (set_err_thread_local != 0)
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CRYPTO_THREAD_cleanup_local(&err_thread_local);
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CRYPTO_THREAD_lock_free(err_string_lock);
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err_string_lock = NULL;
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lh_ERR_STRING_DATA_free(int_error_hash);
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int_error_hash = NULL;
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}
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/*
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* Legacy; pack in the library.
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*/
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static void err_patch(int lib, ERR_STRING_DATA *str)
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{
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unsigned long plib = ERR_PACK(lib, 0, 0);
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for (; str->error != 0; str++)
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str->error |= plib;
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}
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/*
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* Hash in |str| error strings. Assumes the URN_ONCE was done.
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*/
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static int err_load_strings(const ERR_STRING_DATA *str)
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{
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CRYPTO_THREAD_write_lock(err_string_lock);
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for (; str->error; str++)
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(void)lh_ERR_STRING_DATA_insert(int_error_hash,
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(ERR_STRING_DATA *)str);
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CRYPTO_THREAD_unlock(err_string_lock);
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return 1;
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}
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int ERR_load_ERR_strings(void)
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{
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#ifndef OPENSSL_NO_ERR
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if (!RUN_ONCE(&err_string_init, do_err_strings_init))
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return 0;
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err_load_strings(ERR_str_libraries);
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err_load_strings(ERR_str_reasons);
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err_patch(ERR_LIB_SYS, ERR_str_functs);
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err_load_strings(ERR_str_functs);
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build_SYS_str_reasons();
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#endif
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return 1;
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}
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int ERR_load_strings(int lib, ERR_STRING_DATA *str)
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{
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if (ERR_load_ERR_strings() == 0)
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return 0;
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err_patch(lib, str);
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err_load_strings(str);
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return 1;
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}
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int ERR_load_strings_const(const ERR_STRING_DATA *str)
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{
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if (ERR_load_ERR_strings() == 0)
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return 0;
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err_load_strings(str);
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return 1;
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}
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int ERR_unload_strings(int lib, ERR_STRING_DATA *str)
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{
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if (!RUN_ONCE(&err_string_init, do_err_strings_init))
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return 0;
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CRYPTO_THREAD_write_lock(err_string_lock);
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/*
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* We don't need to ERR_PACK the lib, since that was done (to
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* the table) when it was loaded.
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*/
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for (; str->error; str++)
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(void)lh_ERR_STRING_DATA_delete(int_error_hash, str);
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CRYPTO_THREAD_unlock(err_string_lock);
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return 1;
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}
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void err_free_strings_int(void)
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{
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if (!RUN_ONCE(&err_string_init, do_err_strings_init))
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return;
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}
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/********************************************************/
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void ERR_put_error(int lib, int func, int reason, const char *file, int line)
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{
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ERR_STATE *es;
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#ifdef _OSD_POSIX
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/*
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* In the BS2000-OSD POSIX subsystem, the compiler generates path names
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* in the form "*POSIX(/etc/passwd)". This dirty hack strips them to
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* something sensible. @@@ We shouldn't modify a const string, though.
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*/
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if (strncmp(file, "*POSIX(", sizeof("*POSIX(") - 1) == 0) {
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char *end;
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/* Skip the "*POSIX(" prefix */
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file += sizeof("*POSIX(") - 1;
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end = &file[strlen(file) - 1];
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if (*end == ')')
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*end = '\0';
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/* Optional: use the basename of the path only. */
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if ((end = strrchr(file, '/')) != NULL)
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file = &end[1];
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}
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#endif
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es = ERR_get_state();
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if (es == NULL)
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return;
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es->top = (es->top + 1) % ERR_NUM_ERRORS;
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if (es->top == es->bottom)
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es->bottom = (es->bottom + 1) % ERR_NUM_ERRORS;
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es->err_flags[es->top] = 0;
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es->err_buffer[es->top] = ERR_PACK(lib, func, reason);
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es->err_file[es->top] = file;
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es->err_line[es->top] = line;
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err_clear_data(es, es->top);
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}
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void ERR_clear_error(void)
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{
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int i;
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ERR_STATE *es;
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es = ERR_get_state();
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if (es == NULL)
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return;
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for (i = 0; i < ERR_NUM_ERRORS; i++) {
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err_clear(es, i);
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}
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es->top = es->bottom = 0;
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}
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unsigned long ERR_get_error(void)
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{
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return get_error_values(1, 0, NULL, NULL, NULL, NULL);
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}
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unsigned long ERR_get_error_line(const char **file, int *line)
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{
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return get_error_values(1, 0, file, line, NULL, NULL);
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}
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unsigned long ERR_get_error_line_data(const char **file, int *line,
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const char **data, int *flags)
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{
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return get_error_values(1, 0, file, line, data, flags);
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}
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unsigned long ERR_peek_error(void)
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{
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return get_error_values(0, 0, NULL, NULL, NULL, NULL);
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}
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unsigned long ERR_peek_error_line(const char **file, int *line)
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{
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return get_error_values(0, 0, file, line, NULL, NULL);
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}
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unsigned long ERR_peek_error_line_data(const char **file, int *line,
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const char **data, int *flags)
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{
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return get_error_values(0, 0, file, line, data, flags);
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}
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unsigned long ERR_peek_last_error(void)
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{
|
|
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;
|
|
}
|
|
|
|
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 = NULL;
|
|
|
|
if (!RUN_ONCE(&err_init, err_do_init))
|
|
return NULL;
|
|
|
|
/*
|
|
* If base OPENSSL_init_crypto() hasn't been called yet, be sure to call
|
|
* it now to avoid state to be doubly allocated and thereby leak memory.
|
|
* Needed on any platform that doesn't define OPENSSL_USE_NODELETE.
|
|
*/
|
|
if (!OPENSSL_init_crypto(0, NULL))
|
|
return NULL;
|
|
|
|
state = CRYPTO_THREAD_get_local(&err_thread_local);
|
|
|
|
if (state == NULL) {
|
|
state = OPENSSL_zalloc(sizeof(*state));
|
|
if (state == 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);
|
|
return NULL;
|
|
}
|
|
|
|
/* Ignore failures from these */
|
|
OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
|
|
}
|
|
|
|
return 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;
|
|
}
|
|
|
|
void ERR_set_error_data(char *data, int flags)
|
|
{
|
|
ERR_STATE *es;
|
|
int i;
|
|
|
|
es = ERR_get_state();
|
|
if (es == NULL)
|
|
return;
|
|
|
|
i = es->top;
|
|
|
|
err_clear_data(es, i);
|
|
es->err_data[i] = data;
|
|
es->err_data_flags[i] = 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;
|
|
str = OPENSSL_malloc(s + 1);
|
|
if (str == NULL)
|
|
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);
|
|
}
|
|
ERR_set_error_data(str, ERR_TXT_MALLOCED | ERR_TXT_STRING);
|
|
}
|
|
|
|
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;
|
|
}
|