diff options
Diffstat (limited to 'asn1_internal.h')
| -rw-r--r-- | asn1_internal.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/asn1_internal.h b/asn1_internal.h index 9d5ab4d..f6e470f 100644 --- a/asn1_internal.h +++ b/asn1_internal.h @@ -68,6 +68,23 @@ #define ASN1_EXPLICIT_0 (ASN1_EXPLICIT_CONTEXT + 0) #define ASN1_EXPLICIT_1 (ASN1_EXPLICIT_CONTEXT + 1) +/* + * Functions to strip const qualifiers from arguments to libtfm calls + * in a relatively type-safe manner. These don't really have anything + * to do with ASN.1 per se, but all the code that needs them reads + * this header file, so this is the simplest place to put them. + */ + +static inline fp_int *unconst_fp_int(const fp_int * const arg) +{ + return (fp_int *) arg; +} + +static inline uint8_t *unconst_uint8_t(const uint8_t * const arg) +{ + return (uint8_t *) arg; +} + extern hal_error_t hal_asn1_encode_header(const uint8_t tag, const size_t value_len, uint8_t *der, size_t *der_len, const size_t der_max); @@ -76,7 +93,7 @@ extern hal_error_t hal_asn1_decode_header(const uint8_t tag, const uint8_t * const der, size_t der_max, size_t *hlen, size_t *vlen); -extern hal_error_t hal_asn1_encode_integer(fp_int *bn, +extern hal_error_t hal_asn1_encode_integer(const fp_int * const bn, uint8_t *der, size_t *der_len, const size_t der_max); extern hal_error_t hal_asn1_decode_integer(fp_int *bn, |