dolphin/Externals/polarssl/library/oid.c
Ryan Houdek a48e284317 Update external polarssl to 1.3.8
There were some fixes back on March 13th, 2014 for fixing compiling on MIPS64.
Also some fixes on June 25th, 2014 for SPARC64 fixes.

Probably more things, but those are what I care about.
2014-09-08 02:21:18 -05:00

684 lines
23 KiB
C

/**
* \file oid.c
*
* \brief Object Identifier (OID) database
*
* Copyright (C) 2006-2014, Brainspark B.V.
*
* This file is part of PolarSSL (http://www.polarssl.org)
* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#if !defined(POLARSSL_CONFIG_FILE)
#include "polarssl/config.h"
#else
#include POLARSSL_CONFIG_FILE
#endif
#if defined(POLARSSL_OID_C)
#include "polarssl/oid.h"
#include "polarssl/rsa.h"
#if defined(POLARSSL_X509_USE_C) || defined(POLARSSL_X509_CREATE_C)
#include "polarssl/x509.h"
#endif
#include <stdio.h>
/*
* Macro to automatically add the size of #define'd OIDs
*/
#define ADD_LEN(s) s, OID_SIZE(s)
/*
* Macro to generate an internal function for oid_XXX_from_asn1() (used by
* the other functions)
*/
#define FN_OID_TYPED_FROM_ASN1( TYPE_T, NAME, LIST ) \
static const TYPE_T * oid_ ## NAME ## _from_asn1( const asn1_buf *oid ) \
{ \
const TYPE_T *p = LIST; \
const oid_descriptor_t *cur = (const oid_descriptor_t *) p; \
if( p == NULL || oid == NULL ) return( NULL ); \
while( cur->asn1 != NULL ) { \
if( cur->asn1_len == oid->len && \
memcmp( cur->asn1, oid->p, oid->len ) == 0 ) { \
return( p ); \
} \
p++; \
cur = (const oid_descriptor_t *) p; \
} \
return( NULL ); \
}
/*
* Macro to generate a function for retrieving a single attribute from the
* descriptor of an oid_descriptor_t wrapper.
*/
#define FN_OID_GET_DESCRIPTOR_ATTR1(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1) \
int FN_NAME( const asn1_buf *oid, ATTR1_TYPE * ATTR1 ) \
{ \
const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \
if( data == NULL ) return( POLARSSL_ERR_OID_NOT_FOUND ); \
*ATTR1 = data->descriptor.ATTR1; \
return( 0 ); \
}
/*
* Macro to generate a function for retrieving a single attribute from an
* oid_descriptor_t wrapper.
*/
#define FN_OID_GET_ATTR1(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1) \
int FN_NAME( const asn1_buf *oid, ATTR1_TYPE * ATTR1 ) \
{ \
const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \
if( data == NULL ) return( POLARSSL_ERR_OID_NOT_FOUND ); \
*ATTR1 = data->ATTR1; \
return( 0 ); \
}
/*
* Macro to generate a function for retrieving two attributes from an
* oid_descriptor_t wrapper.
*/
#define FN_OID_GET_ATTR2(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1, \
ATTR2_TYPE, ATTR2) \
int FN_NAME( const asn1_buf *oid, ATTR1_TYPE * ATTR1, ATTR2_TYPE * ATTR2 ) \
{ \
const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \
if( data == NULL ) return( POLARSSL_ERR_OID_NOT_FOUND ); \
*ATTR1 = data->ATTR1; \
*ATTR2 = data->ATTR2; \
return( 0 ); \
}
/*
* Macro to generate a function for retrieving the OID based on a single
* attribute from a oid_descriptor_t wrapper.
*/
#define FN_OID_GET_OID_BY_ATTR1(FN_NAME, TYPE_T, LIST, ATTR1_TYPE, ATTR1) \
int FN_NAME( ATTR1_TYPE ATTR1, const char **oid, size_t *olen ) \
{ \
const TYPE_T *cur = LIST; \
while( cur->descriptor.asn1 != NULL ) { \
if( cur->ATTR1 == ATTR1 ) { \
*oid = cur->descriptor.asn1; \
*olen = cur->descriptor.asn1_len; \
return( 0 ); \
} \
cur++; \
} \
return( POLARSSL_ERR_OID_NOT_FOUND ); \
}
/*
* Macro to generate a function for retrieving the OID based on two
* attributes from a oid_descriptor_t wrapper.
*/
#define FN_OID_GET_OID_BY_ATTR2(FN_NAME, TYPE_T, LIST, ATTR1_TYPE, ATTR1, \
ATTR2_TYPE, ATTR2) \
int FN_NAME( ATTR1_TYPE ATTR1, ATTR2_TYPE ATTR2, const char **oid , \
size_t *olen ) \
{ \
const TYPE_T *cur = LIST; \
while( cur->descriptor.asn1 != NULL ) { \
if( cur->ATTR1 == ATTR1 && cur->ATTR2 == ATTR2 ) { \
*oid = cur->descriptor.asn1; \
*olen = cur->descriptor.asn1_len; \
return( 0 ); \
} \
cur++; \
} \
return( POLARSSL_ERR_OID_NOT_FOUND ); \
}
/*
* For X520 attribute types
*/
typedef struct {
oid_descriptor_t descriptor;
const char *short_name;
} oid_x520_attr_t;
static const oid_x520_attr_t oid_x520_attr_type[] =
{
{
{ ADD_LEN( OID_AT_CN ), "id-at-commonName", "Common Name" },
"CN",
},
{
{ ADD_LEN( OID_AT_COUNTRY ), "id-at-countryName", "Country" },
"C",
},
{
{ ADD_LEN( OID_AT_LOCALITY ), "id-at-locality", "Locality" },
"L",
},
{
{ ADD_LEN( OID_AT_STATE ), "id-at-state", "State" },
"ST",
},
{
{ ADD_LEN( OID_AT_ORGANIZATION ),"id-at-organizationName", "Organization" },
"O",
},
{
{ ADD_LEN( OID_AT_ORG_UNIT ), "id-at-organizationalUnitName", "Org Unit" },
"OU",
},
{
{ ADD_LEN( OID_PKCS9_EMAIL ), "emailAddress", "E-mail address" },
"emailAddress",
},
{
{ ADD_LEN( OID_AT_SERIAL_NUMBER ),"id-at-serialNumber", "Serial number" },
"serialNumber",
},
{
{ ADD_LEN( OID_AT_POSTAL_ADDRESS ),"id-at-postalAddress", "Postal address" },
"postalAddress",
},
{
{ ADD_LEN( OID_AT_POSTAL_CODE ), "id-at-postalCode", "Postal code" },
"postalCode",
},
{
{ ADD_LEN( OID_AT_SUR_NAME ), "id-at-surName", "Surname" },
"SN",
},
{
{ ADD_LEN( OID_AT_GIVEN_NAME ), "id-at-givenName", "Given name" },
"GN",
},
{
{ ADD_LEN( OID_AT_INITIALS ), "id-at-initials", "Initials" },
"initials",
},
{
{ ADD_LEN( OID_AT_GENERATION_QUALIFIER ), "id-at-generationQualifier", "Generation qualifier" },
"generationQualifier",
},
{
{ ADD_LEN( OID_AT_TITLE ), "id-at-title", "Title" },
"title",
},
{
{ ADD_LEN( OID_AT_DN_QUALIFIER ),"id-at-dnQualifier", "Distinguished Name qualifier" },
"dnQualifier",
},
{
{ ADD_LEN( OID_AT_PSEUDONYM ), "id-at-pseudonym", "Pseudonym" },
"pseudonym",
},
{
{ ADD_LEN( OID_DOMAIN_COMPONENT ), "id-domainComponent", "Domain component" },
"DC",
},
{
{ NULL, 0, NULL, NULL },
NULL,
}
};
FN_OID_TYPED_FROM_ASN1(oid_x520_attr_t, x520_attr, oid_x520_attr_type);
FN_OID_GET_ATTR1(oid_get_attr_short_name, oid_x520_attr_t, x520_attr, const char *, short_name);
#if defined(POLARSSL_X509_USE_C) || defined(POLARSSL_X509_CREATE_C)
/*
* For X509 extensions
*/
typedef struct {
oid_descriptor_t descriptor;
int ext_type;
} oid_x509_ext_t;
static const oid_x509_ext_t oid_x509_ext[] =
{
{
{ ADD_LEN( OID_BASIC_CONSTRAINTS ), "id-ce-basicConstraints", "Basic Constraints" },
EXT_BASIC_CONSTRAINTS,
},
{
{ ADD_LEN( OID_KEY_USAGE ), "id-ce-keyUsage", "Key Usage" },
EXT_KEY_USAGE,
},
{
{ ADD_LEN( OID_EXTENDED_KEY_USAGE ), "id-ce-keyUsage", "Extended Key Usage" },
EXT_EXTENDED_KEY_USAGE,
},
{
{ ADD_LEN( OID_SUBJECT_ALT_NAME ), "id-ce-subjectAltName", "Subject Alt Name" },
EXT_SUBJECT_ALT_NAME,
},
{
{ ADD_LEN( OID_NS_CERT_TYPE ), "id-netscape-certtype", "Netscape Certificate Type" },
EXT_NS_CERT_TYPE,
},
{
{ NULL, 0, NULL, NULL },
0,
},
};
FN_OID_TYPED_FROM_ASN1(oid_x509_ext_t, x509_ext, oid_x509_ext);
FN_OID_GET_ATTR1(oid_get_x509_ext_type, oid_x509_ext_t, x509_ext, int, ext_type);
static const oid_descriptor_t oid_ext_key_usage[] =
{
{ ADD_LEN( OID_SERVER_AUTH ), "id-kp-serverAuth", "TLS Web Server Authentication" },
{ ADD_LEN( OID_CLIENT_AUTH ), "id-kp-clientAuth", "TLS Web Client Authentication" },
{ ADD_LEN( OID_CODE_SIGNING ), "id-kp-codeSigning", "Code Signing" },
{ ADD_LEN( OID_EMAIL_PROTECTION ), "id-kp-emailProtection", "E-mail Protection" },
{ ADD_LEN( OID_TIME_STAMPING ), "id-kp-timeStamping", "Time Stamping" },
{ ADD_LEN( OID_OCSP_SIGNING ), "id-kp-OCSPSigning", "OCSP Signing" },
{ NULL, 0, NULL, NULL },
};
FN_OID_TYPED_FROM_ASN1(oid_descriptor_t, ext_key_usage, oid_ext_key_usage);
FN_OID_GET_ATTR1(oid_get_extended_key_usage, oid_descriptor_t, ext_key_usage, const char *, description);
#endif /* POLARSSL_X509_USE_C || POLARSSL_X509_CREATE_C */
#if defined(POLARSSL_MD_C)
/*
* For SignatureAlgorithmIdentifier
*/
typedef struct {
oid_descriptor_t descriptor;
md_type_t md_alg;
pk_type_t pk_alg;
} oid_sig_alg_t;
static const oid_sig_alg_t oid_sig_alg[] =
{
{
{ ADD_LEN( OID_PKCS1_MD2 ), "md2WithRSAEncryption", "RSA with MD2" },
POLARSSL_MD_MD2, POLARSSL_PK_RSA,
},
{
{ ADD_LEN( OID_PKCS1_MD4 ), "md4WithRSAEncryption", "RSA with MD4" },
POLARSSL_MD_MD4, POLARSSL_PK_RSA,
},
{
{ ADD_LEN( OID_PKCS1_MD5 ), "md5WithRSAEncryption", "RSA with MD5" },
POLARSSL_MD_MD5, POLARSSL_PK_RSA,
},
{
{ ADD_LEN( OID_PKCS1_SHA1 ), "sha-1WithRSAEncryption", "RSA with SHA1" },
POLARSSL_MD_SHA1, POLARSSL_PK_RSA,
},
{
{ ADD_LEN( OID_PKCS1_SHA224 ), "sha224WithRSAEncryption", "RSA with SHA-224" },
POLARSSL_MD_SHA224, POLARSSL_PK_RSA,
},
{
{ ADD_LEN( OID_PKCS1_SHA256 ), "sha256WithRSAEncryption", "RSA with SHA-256" },
POLARSSL_MD_SHA256, POLARSSL_PK_RSA,
},
{
{ ADD_LEN( OID_PKCS1_SHA384 ), "sha384WithRSAEncryption", "RSA with SHA-384" },
POLARSSL_MD_SHA384, POLARSSL_PK_RSA,
},
{
{ ADD_LEN( OID_PKCS1_SHA512 ), "sha512WithRSAEncryption", "RSA with SHA-512" },
POLARSSL_MD_SHA512, POLARSSL_PK_RSA,
},
{
{ ADD_LEN( OID_RSA_SHA_OBS ), "sha-1WithRSAEncryption", "RSA with SHA1" },
POLARSSL_MD_SHA1, POLARSSL_PK_RSA,
},
{
{ ADD_LEN( OID_ECDSA_SHA1 ), "ecdsa-with-SHA1", "ECDSA with SHA1" },
POLARSSL_MD_SHA1, POLARSSL_PK_ECDSA,
},
{
{ ADD_LEN( OID_ECDSA_SHA224 ), "ecdsa-with-SHA224", "ECDSA with SHA224" },
POLARSSL_MD_SHA224, POLARSSL_PK_ECDSA,
},
{
{ ADD_LEN( OID_ECDSA_SHA256 ), "ecdsa-with-SHA256", "ECDSA with SHA256" },
POLARSSL_MD_SHA256, POLARSSL_PK_ECDSA,
},
{
{ ADD_LEN( OID_ECDSA_SHA384 ), "ecdsa-with-SHA384", "ECDSA with SHA384" },
POLARSSL_MD_SHA384, POLARSSL_PK_ECDSA,
},
{
{ ADD_LEN( OID_ECDSA_SHA512 ), "ecdsa-with-SHA512", "ECDSA with SHA512" },
POLARSSL_MD_SHA512, POLARSSL_PK_ECDSA,
},
{
{ ADD_LEN( OID_RSASSA_PSS ), "RSASSA-PSS", "RSASSA-PSS" },
POLARSSL_MD_NONE, POLARSSL_PK_RSASSA_PSS,
},
{
{ NULL, 0, NULL, NULL },
0, 0,
},
};
FN_OID_TYPED_FROM_ASN1(oid_sig_alg_t, sig_alg, oid_sig_alg);
FN_OID_GET_DESCRIPTOR_ATTR1(oid_get_sig_alg_desc, oid_sig_alg_t, sig_alg, const char *, description);
FN_OID_GET_ATTR2(oid_get_sig_alg, oid_sig_alg_t, sig_alg, md_type_t, md_alg, pk_type_t, pk_alg);
FN_OID_GET_OID_BY_ATTR2(oid_get_oid_by_sig_alg, oid_sig_alg_t, oid_sig_alg, pk_type_t, pk_alg, md_type_t, md_alg);
#endif /* POLARSSL_MD_C */
/*
* For PublicKeyInfo (PKCS1, RFC 5480)
*/
typedef struct {
oid_descriptor_t descriptor;
pk_type_t pk_alg;
} oid_pk_alg_t;
static const oid_pk_alg_t oid_pk_alg[] =
{
{
{ ADD_LEN( OID_PKCS1_RSA ), "rsaEncryption", "RSA" },
POLARSSL_PK_RSA,
},
{
{ ADD_LEN( OID_EC_ALG_UNRESTRICTED ), "id-ecPublicKey", "Generic EC key" },
POLARSSL_PK_ECKEY,
},
{
{ ADD_LEN( OID_EC_ALG_ECDH ), "id-ecDH", "EC key for ECDH" },
POLARSSL_PK_ECKEY_DH,
},
{
{ NULL, 0, NULL, NULL },
0,
},
};
FN_OID_TYPED_FROM_ASN1(oid_pk_alg_t, pk_alg, oid_pk_alg);
FN_OID_GET_ATTR1(oid_get_pk_alg, oid_pk_alg_t, pk_alg, pk_type_t, pk_alg);
FN_OID_GET_OID_BY_ATTR1(oid_get_oid_by_pk_alg, oid_pk_alg_t, oid_pk_alg, pk_type_t, pk_alg);
#if defined(POLARSSL_ECP_C)
/*
* For namedCurve (RFC 5480)
*/
typedef struct {
oid_descriptor_t descriptor;
ecp_group_id grp_id;
} oid_ecp_grp_t;
static const oid_ecp_grp_t oid_ecp_grp[] =
{
{
{ ADD_LEN( OID_EC_GRP_SECP192R1 ), "secp192r1", "secp192r1" },
POLARSSL_ECP_DP_SECP192R1,
},
{
{ ADD_LEN( OID_EC_GRP_SECP224R1 ), "secp224r1", "secp224r1" },
POLARSSL_ECP_DP_SECP224R1,
},
{
{ ADD_LEN( OID_EC_GRP_SECP256R1 ), "secp256r1", "secp256r1" },
POLARSSL_ECP_DP_SECP256R1,
},
{
{ ADD_LEN( OID_EC_GRP_SECP384R1 ), "secp384r1", "secp384r1" },
POLARSSL_ECP_DP_SECP384R1,
},
{
{ ADD_LEN( OID_EC_GRP_SECP521R1 ), "secp521r1", "secp521r1" },
POLARSSL_ECP_DP_SECP521R1,
},
{
{ ADD_LEN( OID_EC_GRP_SECP192K1 ), "secp192k1", "secp192k1" },
POLARSSL_ECP_DP_SECP192K1,
},
{
{ ADD_LEN( OID_EC_GRP_SECP224K1 ), "secp224k1", "secp224k1" },
POLARSSL_ECP_DP_SECP224K1,
},
{
{ ADD_LEN( OID_EC_GRP_SECP256K1 ), "secp256k1", "secp256k1" },
POLARSSL_ECP_DP_SECP256K1,
},
{
{ ADD_LEN( OID_EC_GRP_BP256R1 ), "brainpoolP256r1","brainpool256r1" },
POLARSSL_ECP_DP_BP256R1,
},
{
{ ADD_LEN( OID_EC_GRP_BP384R1 ), "brainpoolP384r1","brainpool384r1" },
POLARSSL_ECP_DP_BP384R1,
},
{
{ ADD_LEN( OID_EC_GRP_BP512R1 ), "brainpoolP512r1","brainpool512r1" },
POLARSSL_ECP_DP_BP512R1,
},
{
{ NULL, 0, NULL, NULL },
0,
},
};
FN_OID_TYPED_FROM_ASN1(oid_ecp_grp_t, grp_id, oid_ecp_grp);
FN_OID_GET_ATTR1(oid_get_ec_grp, oid_ecp_grp_t, grp_id, ecp_group_id, grp_id);
FN_OID_GET_OID_BY_ATTR1(oid_get_oid_by_ec_grp, oid_ecp_grp_t, oid_ecp_grp, ecp_group_id, grp_id);
#endif /* POLARSSL_ECP_C */
#if defined(POLARSSL_CIPHER_C)
/*
* For PKCS#5 PBES2 encryption algorithm
*/
typedef struct {
oid_descriptor_t descriptor;
cipher_type_t cipher_alg;
} oid_cipher_alg_t;
static const oid_cipher_alg_t oid_cipher_alg[] =
{
{
{ ADD_LEN( OID_DES_CBC ), "desCBC", "DES-CBC" },
POLARSSL_CIPHER_DES_CBC,
},
{
{ ADD_LEN( OID_DES_EDE3_CBC ), "des-ede3-cbc", "DES-EDE3-CBC" },
POLARSSL_CIPHER_DES_EDE3_CBC,
},
{
{ NULL, 0, NULL, NULL },
0,
},
};
FN_OID_TYPED_FROM_ASN1(oid_cipher_alg_t, cipher_alg, oid_cipher_alg);
FN_OID_GET_ATTR1(oid_get_cipher_alg, oid_cipher_alg_t, cipher_alg, cipher_type_t, cipher_alg);
#endif /* POLARSSL_CIPHER_C */
#if defined(POLARSSL_MD_C)
/*
* For digestAlgorithm
*/
typedef struct {
oid_descriptor_t descriptor;
md_type_t md_alg;
} oid_md_alg_t;
static const oid_md_alg_t oid_md_alg[] =
{
{
{ ADD_LEN( OID_DIGEST_ALG_MD2 ), "id-md2", "MD2" },
POLARSSL_MD_MD2,
},
{
{ ADD_LEN( OID_DIGEST_ALG_MD4 ), "id-md4", "MD4" },
POLARSSL_MD_MD4,
},
{
{ ADD_LEN( OID_DIGEST_ALG_MD5 ), "id-md5", "MD5" },
POLARSSL_MD_MD5,
},
{
{ ADD_LEN( OID_DIGEST_ALG_SHA1 ), "id-sha1", "SHA-1" },
POLARSSL_MD_SHA1,
},
{
{ ADD_LEN( OID_DIGEST_ALG_SHA224 ), "id-sha224", "SHA-224" },
POLARSSL_MD_SHA224,
},
{
{ ADD_LEN( OID_DIGEST_ALG_SHA256 ), "id-sha256", "SHA-256" },
POLARSSL_MD_SHA256,
},
{
{ ADD_LEN( OID_DIGEST_ALG_SHA384 ), "id-sha384", "SHA-384" },
POLARSSL_MD_SHA384,
},
{
{ ADD_LEN( OID_DIGEST_ALG_SHA512 ), "id-sha512", "SHA-512" },
POLARSSL_MD_SHA512,
},
{
{ NULL, 0, NULL, NULL },
0,
},
};
FN_OID_TYPED_FROM_ASN1(oid_md_alg_t, md_alg, oid_md_alg);
FN_OID_GET_ATTR1(oid_get_md_alg, oid_md_alg_t, md_alg, md_type_t, md_alg);
FN_OID_GET_OID_BY_ATTR1(oid_get_oid_by_md, oid_md_alg_t, oid_md_alg, md_type_t, md_alg);
#endif /* POLARSSL_MD_C */
#if defined(POLARSSL_PKCS12_C)
/*
* For PKCS#12 PBEs
*/
typedef struct {
oid_descriptor_t descriptor;
md_type_t md_alg;
cipher_type_t cipher_alg;
} oid_pkcs12_pbe_alg_t;
static const oid_pkcs12_pbe_alg_t oid_pkcs12_pbe_alg[] =
{
{
{ ADD_LEN( OID_PKCS12_PBE_SHA1_DES3_EDE_CBC ), "pbeWithSHAAnd3-KeyTripleDES-CBC", "PBE with SHA1 and 3-Key 3DES" },
POLARSSL_MD_SHA1, POLARSSL_CIPHER_DES_EDE3_CBC,
},
{
{ ADD_LEN( OID_PKCS12_PBE_SHA1_DES2_EDE_CBC ), "pbeWithSHAAnd2-KeyTripleDES-CBC", "PBE with SHA1 and 2-Key 3DES" },
POLARSSL_MD_SHA1, POLARSSL_CIPHER_DES_EDE_CBC,
},
{
{ NULL, 0, NULL, NULL },
0, 0,
},
};
FN_OID_TYPED_FROM_ASN1(oid_pkcs12_pbe_alg_t, pkcs12_pbe_alg, oid_pkcs12_pbe_alg);
FN_OID_GET_ATTR2(oid_get_pkcs12_pbe_alg, oid_pkcs12_pbe_alg_t, pkcs12_pbe_alg, md_type_t, md_alg, cipher_type_t, cipher_alg);
#endif /* POLARSSL_PKCS12_C */
#if defined(_MSC_VER) && !defined snprintf && !defined(EFIX64) && \
!defined(EFI32)
#include <stdarg.h>
#if !defined vsnprintf
#define vsnprintf _vsnprintf
#endif // vsnprintf
/*
* Windows _snprintf and _vsnprintf are not compatible to linux versions.
* Result value is not size of buffer needed, but -1 if no fit is possible.
*
* This fuction tries to 'fix' this by at least suggesting enlarging the
* size by 20.
*/
static int compat_snprintf( char *str, size_t size, const char *format, ... )
{
va_list ap;
int res = -1;
va_start( ap, format );
res = vsnprintf( str, size, format, ap );
va_end( ap );
// No quick fix possible
if( res < 0 )
return( (int) size + 20 );
return( res );
}
#define snprintf compat_snprintf
#endif /* _MSC_VER && !snprintf && !EFIX64 && !EFI32 */
#define SAFE_SNPRINTF() \
{ \
if( ret == -1 ) \
return( POLARSSL_ERR_OID_BUF_TOO_SMALL ); \
\
if( (unsigned int) ret >= n ) { \
p[n - 1] = '\0'; \
return( POLARSSL_ERR_OID_BUF_TOO_SMALL ); \
} \
\
n -= (unsigned int) ret; \
p += (unsigned int) ret; \
}
/* Return the x.y.z.... style numeric string for the given OID */
int oid_get_numeric_string( char *buf, size_t size,
const asn1_buf *oid )
{
int ret;
size_t i, n;
unsigned int value;
char *p;
p = buf;
n = size;
/* First byte contains first two dots */
if( oid->len > 0 )
{
ret = snprintf( p, n, "%d.%d", oid->p[0] / 40, oid->p[0] % 40 );
SAFE_SNPRINTF();
}
value = 0;
for( i = 1; i < oid->len; i++ )
{
/* Prevent overflow in value. */
if( ( ( value << 7 ) >> 7 ) != value )
return( POLARSSL_ERR_OID_BUF_TOO_SMALL );
value <<= 7;
value += oid->p[i] & 0x7F;
if( !( oid->p[i] & 0x80 ) )
{
/* Last byte */
ret = snprintf( p, n, ".%d", value );
SAFE_SNPRINTF();
value = 0;
}
}
return( (int) ( size - n ) );
}
#endif /* POLARSSL_OID_C */