Inital import.
Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta).
(This change contains substantial changes from the original and
effectively starts a new history.)
diff --git a/crypto/err/err.h b/crypto/err/err.h
new file mode 100644
index 0000000..411bc9b
--- /dev/null
+++ b/crypto/err/err.h
@@ -0,0 +1,496 @@
+/* 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 <openssl/base.h>
+#include <openssl/thread.h>
+#include <openssl/lhash.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) A function identifier and reason code.
+ * 3) The file and line number of the call that added the error.
+ * 4) A pointer to some error specific data, which may be NULL.
+ *
+ * The library identifier, function 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_crypto_strings initialises the error string hash with builtin
+ * values. If this is not called then the string forms of errors produced by
+ * the functions below will contain numeric identifiers rather than
+ * human-readable strings. */
+void ERR_load_crypto_strings();
+
+/* ERR_free_strings frees any internal error values that have been loaded. This
+ * should only be called at process shutdown. */
+void ERR_free_strings();
+
+
+/* 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. */
+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. */
+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. */
+uint32_t ERR_get_error_line_data(const char **file, int *line,
+ 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. */
+uint32_t ERR_peek_error(void);
+uint32_t ERR_peek_error_line(const char **file, int *line);
+uint32_t ERR_peek_error_line_data(const char **file, int *line,
+ const char **data, int *flags);
+
+/* The "peek last" functions act like the "peek" functions, above, except that
+ * they return the most recent error. */
+uint32_t ERR_peek_last_error(void);
+uint32_t ERR_peek_last_error_line(const char **file, int *line);
+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]:[function name]:[reason string]
+ *
+ * error code is an 8 digit hexadecimal number; library name, function name
+ * and reason string are ASCII text.
+ *
+ * TODO(fork): remove in favour of |ERR_error_string_n|. */
+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. */
+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|. */
+const char *ERR_lib_error_string(uint32_t packed_error);
+
+/* ERR_func_error_string returns a string representation of the function that
+ * generated |packed_error|. */
+const char *ERR_func_error_string(uint32_t packed_error);
+
+/* ERR_reason_error_string returns a string representation of the reason for
+ * |packed_error|. */
+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. */
+void ERR_print_errors_cb(ERR_print_errors_callback_t callback, void *ctx);
+
+
+/* Clearing errors. */
+
+/* ERR_clear_error clears the error queue for the current thread. */
+void ERR_clear_error(void);
+
+
+/* Private functions. */
+
+/* ERR_clear_system_error clears the system's error value (i.e. errno). */
+void ERR_clear_system_error(void);
+
+/* OPENSSL_PUT_ERROR is used by OpenSSL code to add an error to the error
+ * queue. */
+#define OPENSSL_PUT_ERROR(library, func, reason) \
+ ERR_put_error(ERR_LIB_##library, library##_F_##func, reason, __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, SYS_F_##func, 0, __FILE__, __LINE__);
+
+/* ERR_put_error adds an error to the error queue, dropping the least recent
+ * error if neccessary for space reasons. */
+void ERR_put_error(int library, int func, int reason, 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. */
+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. */
+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. */
+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|. */
+int ERR_pop_to_mark(void);
+
+struct err_error_st {
+ /* 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_MALLOCED means the the |data| member must be freed when no longer
+ * needed. */
+#define ERR_FLAG_MALLOCED 1
+/* ERR_FLAG_STRING means that the |data| member is a NUL-terminated string that
+ * can be printed. */
+#define ERR_FLAG_STRING 2
+
+/* 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_MARK is used to indicate a reversion point in the queue. See
+ * |ERR_pop_to_mark|. */
+#define ERR_FLAG_MARK 16
+
+/* 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 {
+ /* tid is the identifier of the thread that owns this queue. */
+ CRYPTO_THREADID tid;
+
+ /* 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;
+} 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_PKCS12,
+ 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_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_PKCS12_LIB ERR_LIB_PKCS12
+#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
+
+/* 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)
+
+/* System error functions */
+#define SYS_F_fopen 100
+#define SYS_F_fclose 101
+#define SYS_F_fread 102
+#define SYS_F_fwrite 103
+#define SYS_F_socket 104
+#define SYS_F_setsockopt 105
+#define SYS_F_connect 106
+#define SYS_F_getaddrinfo 107
+
+#define ERR_PACK(lib, func, reason) \
+ (((((uint32_t)lib) & 0xff) << 24) | ((((uint32_t)func) & 0xfff) << 12) | \
+ ((((uint32_t)reason) & 0xfff)))
+
+#define ERR_GET_LIB(packed_error) (((packed_error) >> 24) & 0xff)
+#define ERR_GET_FUNC(packed_error) (((packed_error) >> 12) & 0xfff)
+#define ERR_GET_REASON(packed_error) ((packed_error) & 0xfff)
+
+/* ERR_STRING_DATA is the type of an lhash node that contains a mapping from a
+ * library, function or reason code to a string representation of it. */
+typedef struct err_string_data_st {
+ uint32_t error;
+ const char *string;
+} ERR_STRING_DATA;
+
+/* ERR_load_strings loads an array of ERR_STRING_DATA into the hash table. The
+ * array must be terminated by an entry with a NULL string. */
+void ERR_load_strings(const ERR_STRING_DATA *str);
+
+/* ERR_FNS_st is a structure of function pointers that contains the actual
+ * implementation of the error queue handling functions. */
+struct ERR_FNS_st {
+ void (*shutdown)(void);
+ ERR_STRING_DATA *(*get_item)(uint32_t packed_error);
+ ERR_STRING_DATA *(*set_item)(const ERR_STRING_DATA *);
+ ERR_STRING_DATA *(*del_item)(uint32_t packed_error);
+
+ /* get_state returns the ERR_STATE for the current thread. This function
+ * never returns NULL. */
+ ERR_STATE *(*get_state)(void);
+};
+
+/* 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)
+
+/* OPENSSL_DECLARE_ERROR_FUNCTION is used by util/make_errors.h (which
+ * generates the error * defines to recognise that an additional function value
+ * is needed. This is * needed when the function value is used outside of an
+ * |OPENSSL_PUT_ERROR| * macro. The resulting define will be
+ * ${lib}_F_${reason}. */
+#define OPENSSL_DECLARE_ERROR_FUNCTION(lib, function_name)
+
+/* ERR_load_BIO_strings does nothing.
+ *
+ * TODO(fork): remove. libjingle calls this. */
+void ERR_load_BIO_strings();
+
+
+#if defined(__cplusplus)
+} /* extern C */
+#endif
+
+#endif /* OPENSSL_HEADER_ERR_H */
