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Nagram/TMessagesProj/jni/boringssl/include/openssl/err.h
DrKLO 6bb7547f50 Update to 3.2.2
2015-09-24 23:52:02 +03:00

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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com). */
#ifndef OPENSSL_HEADER_ERR_H
#define OPENSSL_HEADER_ERR_H
#include <stdio.h>
#include <openssl/base.h>
#if defined(__cplusplus)
extern "C" {
#endif
/* Error queue handling functions.
*
* Errors in OpenSSL are generally signalled by the return value of a function.
* When a function fails it may add an entry to a per-thread error queue,
* which is managed by the functions in this header.
*
* Each error contains:
* 1) The library (i.e. ec, pem, rsa) which created it.
* 2) The function, file, and line number of the call that added the error.
* 3) A pointer to some error specific data, which may be NULL.
*
* The library identifier and reason code are packed in a uint32_t and there
* exist various functions for unpacking it.
*
* The typical behaviour is that an error will occur deep in a call queue and
* that code will push an error onto the error queue. As the error queue
* unwinds, other functions will push their own errors. Thus, the "least
* recent" error is the most specific and the other errors will provide a
* backtrace of sorts. */
/* Startup and shutdown. */
/* ERR_load_BIO_strings does nothing.
*
* TODO(fork): remove. libjingle calls this. */
OPENSSL_EXPORT void ERR_load_BIO_strings(void);
/* ERR_load_ERR_strings does nothing. */
OPENSSL_EXPORT void ERR_load_ERR_strings(void);
/* ERR_load_crypto_strings does nothing. */
OPENSSL_EXPORT void ERR_load_crypto_strings(void);
/* ERR_free_strings does nothing. */
OPENSSL_EXPORT void ERR_free_strings(void);
/* Reading and formatting errors. */
/* ERR_get_error gets the packed error code for the least recent error and
* removes that error from the queue. If there are no errors in the queue then
* it returns zero. */
OPENSSL_EXPORT uint32_t ERR_get_error(void);
/* ERR_get_error_line acts like |ERR_get_error|, except that the file and line
* number of the call that added the error are also returned. */
OPENSSL_EXPORT uint32_t ERR_get_error_line(const char **file, int *line);
/* ERR_get_error_line_data acts like |ERR_get_error_line|, but also returns the
* error-specific data pointer and flags. The flags are a bitwise-OR of
* |ERR_FLAG_*| values. The error-specific data is owned by the error queue
* and the pointer becomes invalid after the next call that affects the same
* thread's error queue. If |*flags| contains |ERR_FLAG_STRING| then |*data| is
* human-readable. */
OPENSSL_EXPORT uint32_t ERR_get_error_line_data(const char **file, int *line,
const char **data, int *flags);
/* The "peek" functions act like the |ERR_get_error| functions, above, but they
* do not remove the error from the queue. */
OPENSSL_EXPORT uint32_t ERR_peek_error(void);
OPENSSL_EXPORT uint32_t ERR_peek_error_line(const char **file, int *line);
OPENSSL_EXPORT uint32_t ERR_peek_error_line_data(const char **file, int *line,
const char **data, int *flags);
/* ERR_peek_function returns the name of the function which added the least
* recent error or NULL if the queue is empty. */
OPENSSL_EXPORT const char *ERR_peek_function(void);
/* The "peek last" functions act like the "peek" functions, above, except that
* they return the most recent error. */
OPENSSL_EXPORT uint32_t ERR_peek_last_error(void);
OPENSSL_EXPORT uint32_t ERR_peek_last_error_line(const char **file, int *line);
OPENSSL_EXPORT uint32_t ERR_peek_last_error_line_data(const char **file,
int *line,
const char **data,
int *flags);
/* ERR_error_string generates a human-readable string representing
* |packed_error|, places it at |buf| (which must be at least
* ERR_ERROR_STRING_BUF_LEN bytes long) and returns |buf|. If |buf| is NULL,
* the error string is placed in a static buffer which is returned. (The static
* buffer may be overridden by concurrent calls in other threads so this form
* is deprecated.)
*
* The string will have the following format:
*
* error:[error code]:[library name]:OPENSSL_internal:[reason string]
*
* error code is an 8 digit hexadecimal number; library name and reason string
* are ASCII text.
*
* TODO(fork): remove in favour of |ERR_error_string_n|. */
OPENSSL_EXPORT char *ERR_error_string(uint32_t packed_error, char *buf);
#define ERR_ERROR_STRING_BUF_LEN 256
/* ERR_error_string_n is a variant of |ERR_error_string| that writes at most
* len characters (including the terminating NUL) and truncates the string if
* necessary. If |len| is greater than zero then |buf| is always NUL
* terminated. */
OPENSSL_EXPORT void ERR_error_string_n(uint32_t packed_error, char *buf,
size_t len);
/* ERR_lib_error_string returns a string representation of the library that
* generated |packed_error|. */
OPENSSL_EXPORT const char *ERR_lib_error_string(uint32_t packed_error);
/* ERR_reason_error_string returns a string representation of the reason for
* |packed_error|. */
OPENSSL_EXPORT const char *ERR_reason_error_string(uint32_t packed_error);
/* ERR_print_errors_callback_t is the type of a function used by
* |ERR_print_errors_cb|. It takes a pointer to a human readable string (and
* its length) that describes an entry in the error queue. The |ctx| argument
* is an opaque pointer given to |ERR_print_errors_cb|.
*
* It should return one on success or zero on error, which will stop the
* iteration over the error queue. */
typedef int (*ERR_print_errors_callback_t)(const char *str, size_t len,
void *ctx);
/* ERR_print_errors_cb calls |callback| with a string representation of each
* error in the current thread's error queue, from the least recent to the most
* recent error.
*
* The string will have the following format (which differs from
* |ERR_error_string|):
*
* [thread id]:error:[error code]:[library name]:[function name]:
* [reason string]:[file]:[line number]:[optional string data]
*
* (All in one line.)
*
* The callback can return one to continue the iteration or zero to stop it.
* The |ctx| argument is an opaque value that is passed through to the
* callback. */
OPENSSL_EXPORT void ERR_print_errors_cb(ERR_print_errors_callback_t callback,
void *ctx);
/* ERR_print_errors_fp prints the current contents of the error stack to |file|
* using human readable strings where possible. */
OPENSSL_EXPORT void ERR_print_errors_fp(FILE *file);
/* Clearing errors. */
/* ERR_clear_error clears the error queue for the current thread. */
OPENSSL_EXPORT void ERR_clear_error(void);
/* ERR_remove_thread_state clears the error queue for the current thread if
* |tid| is NULL. Otherwise it calls |assert(0)|, because it's no longer
* possible to delete the error queue for other threads.
*
* Error queues are thread-local data and are deleted automatically. You do not
* need to call this function. Use |ERR_clear_error|. */
OPENSSL_EXPORT void ERR_remove_thread_state(const CRYPTO_THREADID *tid);
/* Custom errors. */
/* ERR_get_next_error_library returns a value suitable for passing as the
* |library| argument to |ERR_put_error|. This is intended for code that wishes
* to push its own, non-standard errors to the error queue. */
OPENSSL_EXPORT int ERR_get_next_error_library(void);
/* Deprecated functions. */
/* ERR_remove_state calls |ERR_clear_error|. */
OPENSSL_EXPORT void ERR_remove_state(unsigned long pid);
/* ERR_func_error_string returns the string "OPENSSL_internal". */
OPENSSL_EXPORT const char *ERR_func_error_string(uint32_t packed_error);
/* Private functions. */
/* ERR_clear_system_error clears the system's error value (i.e. errno). */
OPENSSL_EXPORT void ERR_clear_system_error(void);
#if defined(OPENSSL_WINDOWS)
/* TODO(davidben): Use |__func__| directly once the minimum MSVC version
* supports it. */
#define OPENSSL_CURRENT_FUNCTION __FUNCTION__
#else
#define OPENSSL_CURRENT_FUNCTION __func__
#endif
/* OPENSSL_PUT_ERROR is used by OpenSSL code to add an error to the error
* queue. */
#define OPENSSL_PUT_ERROR(library, reason) \
ERR_put_error(ERR_LIB_##library, reason, OPENSSL_CURRENT_FUNCTION, __FILE__, \
__LINE__)
/* OPENSSL_PUT_SYSTEM_ERROR is used by OpenSSL code to add an error from the
* operating system to the error queue. */
/* TODO(fork): include errno. */
#define OPENSSL_PUT_SYSTEM_ERROR(func) \
ERR_put_error(ERR_LIB_SYS, 0, #func, __FILE__, __LINE__);
/* ERR_put_error adds an error to the error queue, dropping the least recent
* error if neccessary for space reasons. */
OPENSSL_EXPORT void ERR_put_error(int library, int reason, const char *function,
const char *file, unsigned line);
/* ERR_add_error_data takes a variable number (|count|) of const char*
* pointers, concatenates them and sets the result as the data on the most
* recent error. */
OPENSSL_EXPORT void ERR_add_error_data(unsigned count, ...);
/* ERR_add_error_dataf takes a printf-style format and arguments, and sets the
* result as the data on the most recent error. */
OPENSSL_EXPORT void ERR_add_error_dataf(const char *format, ...);
/* ERR_set_mark "marks" the most recent error for use with |ERR_pop_to_mark|.
* It returns one if an error was marked and zero if there are no errors. */
OPENSSL_EXPORT int ERR_set_mark(void);
/* ERR_pop_to_mark removes errors from the most recent to the least recent
* until (and not including) a "marked" error. It returns zero if no marked
* error was found (and thus all errors were removed) and one otherwise. Errors
* are marked using |ERR_set_mark|. */
OPENSSL_EXPORT int ERR_pop_to_mark(void);
struct err_error_st {
/* function contains the name of the function where the error occured. */
const char *function;
/* file contains the filename where the error occured. */
const char *file;
/* data contains optional data. It must be freed with |OPENSSL_free| if
* |flags&ERR_FLAG_MALLOCED|. */
char *data;
/* packed contains the error library, function and reason, as packed by
* ERR_PACK. */
uint32_t packed;
/* line contains the line number where the error occured. */
uint16_t line;
/* flags contains a bitwise-OR of ERR_FLAG_* values. */
uint8_t flags;
};
/* ERR_FLAG_STRING means that the |data| member is a NUL-terminated string that
* can be printed. */
#define ERR_FLAG_STRING 1
/* ERR_TXT_STRING is provided for compatibility with code that assumes that
* it's using OpenSSL. */
#define ERR_TXT_STRING ERR_FLAG_STRING
/* ERR_FLAG_PUBLIC_MASK is applied to the flags field before it is returned
* from functions like |ERR_get_error_line_data|. */
#define ERR_FLAG_PUBLIC_MASK 0xf
/* The following flag values are internal and are masked when flags are
* returned from functions like |ERR_get_error_line_data|. */
/* ERR_FLAG_MALLOCED means the the |data| member must be freed when no longer
* needed. */
#define ERR_FLAG_MALLOCED 16
/* ERR_FLAG_MARK is used to indicate a reversion point in the queue. See
* |ERR_pop_to_mark|. */
#define ERR_FLAG_MARK 32
/* ERR_NUM_ERRORS is the limit of the number of errors in the queue. */
#define ERR_NUM_ERRORS 16
/* ERR_STATE contains the per-thread, error queue. */
typedef struct err_state_st {
/* errors contains the ERR_NUM_ERRORS most recent errors, organised as a ring
* buffer. */
struct err_error_st errors[ERR_NUM_ERRORS];
/* top contains the index one past the most recent error. If |top| equals
* |bottom| then the queue is empty. */
unsigned top;
/* bottom contains the index of the last error in the queue. */
unsigned bottom;
/* to_free, if not NULL, contains a pointer owned by this structure that was
* previously a |data| pointer of one of the elements of |errors|. */
void *to_free;
} ERR_STATE;
enum {
ERR_LIB_NONE = 1,
ERR_LIB_SYS,
ERR_LIB_BN,
ERR_LIB_RSA,
ERR_LIB_DH,
ERR_LIB_EVP,
ERR_LIB_BUF,
ERR_LIB_OBJ,
ERR_LIB_PEM,
ERR_LIB_DSA,
ERR_LIB_X509,
ERR_LIB_ASN1,
ERR_LIB_CONF,
ERR_LIB_CRYPTO,
ERR_LIB_EC,
ERR_LIB_SSL,
ERR_LIB_BIO,
ERR_LIB_PKCS7,
ERR_LIB_PKCS8,
ERR_LIB_X509V3,
ERR_LIB_RAND,
ERR_LIB_ENGINE,
ERR_LIB_OCSP,
ERR_LIB_UI,
ERR_LIB_COMP,
ERR_LIB_ECDSA,
ERR_LIB_ECDH,
ERR_LIB_HMAC,
ERR_LIB_DIGEST,
ERR_LIB_CIPHER,
ERR_LIB_HKDF,
ERR_LIB_USER,
ERR_NUM_LIBS
};
#define ERR_R_SYS_LIB ERR_LIB_SYS
#define ERR_R_BN_LIB ERR_LIB_BN
#define ERR_R_RSA_LIB ERR_LIB_RSA
#define ERR_R_DH_LIB ERR_LIB_DH
#define ERR_R_EVP_LIB ERR_LIB_EVP
#define ERR_R_BUF_LIB ERR_LIB_BUF
#define ERR_R_OBJ_LIB ERR_LIB_OBJ
#define ERR_R_PEM_LIB ERR_LIB_PEM
#define ERR_R_DSA_LIB ERR_LIB_DSA
#define ERR_R_X509_LIB ERR_LIB_X509
#define ERR_R_ASN1_LIB ERR_LIB_ASN1
#define ERR_R_CONF_LIB ERR_LIB_CONF
#define ERR_R_CRYPTO_LIB ERR_LIB_CRYPTO
#define ERR_R_EC_LIB ERR_LIB_EC
#define ERR_R_SSL_LIB ERR_LIB_SSL
#define ERR_R_BIO_LIB ERR_LIB_BIO
#define ERR_R_PKCS7_LIB ERR_LIB_PKCS7
#define ERR_R_PKCS8_LIB ERR_LIB_PKCS8
#define ERR_R_X509V3_LIB ERR_LIB_X509V3
#define ERR_R_RAND_LIB ERR_LIB_RAND
#define ERR_R_DSO_LIB ERR_LIB_DSO
#define ERR_R_ENGINE_LIB ERR_LIB_ENGINE
#define ERR_R_OCSP_LIB ERR_LIB_OCSP
#define ERR_R_UI_LIB ERR_LIB_UI
#define ERR_R_COMP_LIB ERR_LIB_COMP
#define ERR_R_ECDSA_LIB ERR_LIB_ECDSA
#define ERR_R_ECDH_LIB ERR_LIB_ECDH
#define ERR_R_STORE_LIB ERR_LIB_STORE
#define ERR_R_FIPS_LIB ERR_LIB_FIPS
#define ERR_R_CMS_LIB ERR_LIB_CMS
#define ERR_R_TS_LIB ERR_LIB_TS
#define ERR_R_HMAC_LIB ERR_LIB_HMAC
#define ERR_R_JPAKE_LIB ERR_LIB_JPAKE
#define ERR_R_USER_LIB ERR_LIB_USER
#define ERR_R_DIGEST_LIB ERR_LIB_DIGEST
#define ERR_R_CIPHER_LIB ERR_LIB_CIPHER
#define ERR_R_HKDF_LIB ERR_LIB_HKDF
/* Global reasons. */
#define ERR_R_FATAL 64
#define ERR_R_MALLOC_FAILURE (1 | ERR_R_FATAL)
#define ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED (2 | ERR_R_FATAL)
#define ERR_R_PASSED_NULL_PARAMETER (3 | ERR_R_FATAL)
#define ERR_R_INTERNAL_ERROR (4 | ERR_R_FATAL)
#define ERR_R_OVERFLOW (5 | ERR_R_FATAL)
#define ERR_PACK(lib, reason) \
(((((uint32_t)lib) & 0xff) << 24) | ((((uint32_t)reason) & 0xfff)))
#define ERR_GET_LIB(packed_error) ((int)(((packed_error) >> 24) & 0xff))
#define ERR_GET_FUNC(packed_error) 0
#define ERR_GET_REASON(packed_error) ((int)((packed_error) & 0xfff))
/* OPENSSL_DECLARE_ERROR_REASON is used by util/make_errors.h (which generates
* the error defines) to recognise that an additional reason value is needed.
* This is needed when the reason value is used outside of an
* |OPENSSL_PUT_ERROR| macro. The resulting define will be
* ${lib}_R_${reason}. */
#define OPENSSL_DECLARE_ERROR_REASON(lib, reason)
#if defined(__cplusplus)
} /* extern C */
#endif
#endif /* OPENSSL_HEADER_ERR_H */
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