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boringssl/include/openssl/obj.h
David Benjamin 34248d4cb7 Get rid of err function codes. 
Running make_errors.go every time a function is renamed is incredibly
tedious. Plus we keep getting them wrong.

Instead, sample __func__ (__FUNCTION__ in MSVC) in the OPENSSL_PUT_ERROR macro
and store it alongside file and line number. This doesn't change the format of
ERR_print_errors, however ERR_error_string_n now uses the placeholder
"OPENSSL_internal" rather than an actual function name since that only takes
the uint32_t packed error code as input.

This updates err scripts to not emit the function string table. The
OPENSSL_PUT_ERROR invocations, for now, still include the extra
parameter. That will be removed in a follow-up.

BUG=468039

Change-Id: Iaa2ef56991fb58892fa8a1283b3b8b995fbb308d
Reviewed-on: https://boringssl-review.googlesource.com/5275
Reviewed-by: Adam Langley <agl@google.com>
2015-07-16 02:02:08 +00:00

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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.] */
#ifndef OPENSSL_HEADER_OBJECTS_H
#define OPENSSL_HEADER_OBJECTS_H
#include <openssl/base.h>
#include <openssl/bytestring.h>
#include <openssl/obj_mac.h>
#if defined(__cplusplus)
extern "C" {
#endif
/* The objects library deals with the registration and indexing of ASN.1 object
* identifiers. These values are often written as a dotted sequence of numbers,
* e.g. 1.2.840.113549.1.9.16.3.9.
*
* Internally, OpenSSL likes to deal with these values by numbering them with
* numbers called "nids". OpenSSL has a large, built-in database of common
* object identifiers and also has both short and long names for them.
*
* This library provides functions for translating between object identifiers,
* nids, short names and long names.
*
* The nid values should not be used outside of a single process: they are not
* stable identifiers. */
/* Basic operations. */
/* OBJ_dup returns a duplicate copy of |obj| or NULL on allocation failure. */
OPENSSL_EXPORT ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *obj);
/* OBJ_cmp returns a value less than, equal to or greater than zero if |a| is
* less than, equal to or greater than |b|, respectively. */
OPENSSL_EXPORT int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b);
/* Looking up nids. */
/* OBJ_obj2nid returns the nid corresponding to |obj|, or |NID_undef| if no
* such object is known. */
OPENSSL_EXPORT int OBJ_obj2nid(const ASN1_OBJECT *obj);
/* OBJ_cbs2nid returns the nid corresponding to the DER data in |cbs|, or
* |NID_undef| if no such object is known. */
OPENSSL_EXPORT int OBJ_cbs2nid(const CBS *cbs);
/* OBJ_sn2nid returns the nid corresponding to |short_name|, or |NID_undef| if
* no such short name is known. */
OPENSSL_EXPORT int OBJ_sn2nid(const char *short_name);
/* OBJ_ln2nid returns the nid corresponding to |long_name|, or |NID_undef| if
* no such long name is known. */
OPENSSL_EXPORT int OBJ_ln2nid(const char *long_name);
/* OBJ_txt2nid returns the nid corresponding to |s|, which may be a short name,
* long name, or an ASCII string containing a dotted sequence of numbers. It
* returns the nid or NID_undef if unknown. */
OPENSSL_EXPORT int OBJ_txt2nid(const char *s);
/* Getting information about nids. */
/* OBJ_nid2obj returns the ASN1_OBJECT corresponding to |nid|, or NULL if |nid|
* is unknown. */
OPENSSL_EXPORT const ASN1_OBJECT *OBJ_nid2obj(int nid);
/* OBJ_nid2sn returns the short name for |nid|, or NULL if |nid| is unknown. */
OPENSSL_EXPORT const char *OBJ_nid2sn(int nid);
/* OBJ_nid2sn returns the long name for |nid|, or NULL if |nid| is unknown. */
OPENSSL_EXPORT const char *OBJ_nid2ln(int nid);
/* OBJ_nid2cbb writes |nid| as an ASN.1 OBJECT IDENTIFIER to |out|. It returns
* one on success or zero otherwise. */
OPENSSL_EXPORT int OBJ_nid2cbb(CBB *out, int nid);
/* Dealing with textual representations of object identifiers. */
/* OBJ_txt2obj returns an ASN1_OBJECT for the textual respresentation in |s|.
* If |dont_search_names| is zero, then |s| will be matched against the long
* and short names of a known objects to find a match. Otherwise |s| must
* contain an ASCII string with a dotted sequence of numbers. The resulting
* object need not be previously known. It returns a freshly allocated
* |ASN1_OBJECT| or NULL on error. */
OPENSSL_EXPORT ASN1_OBJECT *OBJ_txt2obj(const char *s, int dont_search_names);
/* OBJ_obj2txt converts |obj| to a textual representation. If
* |dont_return_name| is zero then |obj| will be matched against known objects
* and the long (preferably) or short name will be used if found. Otherwise
* |obj| will be converted into a dotted sequence of integers. If |out| is not
* NULL, then at most |out_len| bytes of the textual form will be written
* there. If |out_len| is at least one, then string written to |out| will
* always be NUL terminated. It returns the number of characters that could
* have been written, not including the final NUL, or -1 on error. */
OPENSSL_EXPORT int OBJ_obj2txt(char *out, int out_len, const ASN1_OBJECT *obj,
int dont_return_name);
/* Adding objects at runtime. */
/* OBJ_create adds a known object and returns the nid of the new object, or
* NID_undef on error. */
OPENSSL_EXPORT int OBJ_create(const char *oid, const char *short_name,
const char *long_name);
/* Handling signature algorithm identifiers.
*
* Some NIDs (e.g. sha256WithRSAEncryption) specify both a digest algorithm and
* a public key algorithm. The following functions map between pairs of digest
* and public-key algorithms and the NIDs that specify their combination.
*
* Sometimes the combination NID leaves the digest unspecified (e.g.
* rsassaPss). In these cases, the digest NID is |NID_undef|. */
/* OBJ_find_sigid_algs finds the digest and public-key NIDs that correspond to
* the signing algorithm |sign_nid|. If successful, it sets |*out_digest_nid|
* and |*out_pkey_nid| and returns one. Otherwise it returns zero. Any of
* |out_digest_nid| or |out_pkey_nid| can be NULL if the caller doesn't need
* that output value. */
OPENSSL_EXPORT int OBJ_find_sigid_algs(int sign_nid, int *out_digest_nid,
int *out_pkey_nid);
/* OBJ_find_sigid_by_algs finds the signature NID that corresponds to the
* combination of |digest_nid| and |pkey_nid|. If success, it sets
* |*out_sign_nid| and returns one. Otherwise it returns zero. The
* |out_sign_nid| argument can be NULL if the caller only wishes to learn
* whether the combination is valid. */
OPENSSL_EXPORT int OBJ_find_sigid_by_algs(int *out_sign_nid, int digest_nid,
int pkey_nid);
#if defined(__cplusplus)
} /* extern C */
#endif
#define OBJ_R_UNKNOWN_NID 100
#endif /* OPENSSL_HEADER_OBJECTS_H */
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