/*-
 * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
 * Redistribution and modifications are permitted subject to BSD license.
 */
#ifndef _OCTET_STRING_H_
#define _OCTET_STRING_H_

#include <asn_application.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef struct OCTET_STRING {
  uint8_t* buf; /* Buffer with consecutive OCTET_STRING bits */
  size_t size;  /* Size of the buffer */

  asn_struct_ctx_t _asn_ctx; /* Parsing across buffer boundaries */
} OCTET_STRING_t;

extern asn_TYPE_descriptor_t asn_DEF_OCTET_STRING;
extern asn_TYPE_operation_t asn_OP_OCTET_STRING;

asn_struct_free_f OCTET_STRING_free;
asn_struct_print_f OCTET_STRING_print;
asn_struct_print_f OCTET_STRING_print_utf8;
asn_struct_compare_f OCTET_STRING_compare;
ber_type_decoder_f OCTET_STRING_decode_ber;
der_type_encoder_f OCTET_STRING_encode_der;
xer_type_decoder_f OCTET_STRING_decode_xer_hex;    /* Hexadecimal */
xer_type_decoder_f OCTET_STRING_decode_xer_binary; /* 01010111010 */
xer_type_decoder_f OCTET_STRING_decode_xer_utf8;   /* ASCII/UTF-8 */
xer_type_encoder_f OCTET_STRING_encode_xer;
xer_type_encoder_f OCTET_STRING_encode_xer_utf8;
oer_type_decoder_f OCTET_STRING_decode_oer;
oer_type_encoder_f OCTET_STRING_encode_oer;
per_type_decoder_f OCTET_STRING_decode_uper;
per_type_encoder_f OCTET_STRING_encode_uper;
per_type_decoder_f OCTET_STRING_decode_aper;
per_type_encoder_f OCTET_STRING_encode_aper;
asn_random_fill_f OCTET_STRING_random_fill;

#define OCTET_STRING_constraint asn_generic_no_constraint
#define OCTET_STRING_decode_xer OCTET_STRING_decode_xer_hex

/******************************
 * Handy conversion routines. *
 ******************************/

/*
 * This function clears the previous value of the OCTET STRING (if any)
 * and then allocates a new memory with the specified content (str/size).
 * If size = -1, the size of the original string will be determined
 * using strlen(str).
 * If str equals to NULL, the function will silently clear the
 * current contents of the OCTET STRING.
 * Returns 0 if it was possible to perform operation, -1 otherwise.
 */
int OCTET_STRING_fromBuf(OCTET_STRING_t* s, const char* str, int size);

/* Handy conversion from the C string into the OCTET STRING. */
#define OCTET_STRING_fromString(s, str) OCTET_STRING_fromBuf(s, str, -1)

/*
 * Allocate and fill the new OCTET STRING and return a pointer to the newly
 * allocated object. NULL is permitted in str: the function will just allocate
 * empty OCTET STRING.
 */
OCTET_STRING_t* OCTET_STRING_new_fromBuf(
    const asn_TYPE_descriptor_t* td, const char* str, int size);

/****************************
 * Internally useful stuff. *
 ****************************/

typedef struct asn_OCTET_STRING_specifics_s {
  /*
   * Target structure description.
   */
  unsigned struct_size; /* Size of the structure */
  unsigned ctx_offset;  /* Offset of the asn_struct_ctx_t member */

  enum asn_OS_Subvariant {
    ASN_OSUBV_ANY, /* The open type (ANY) */
    ASN_OSUBV_BIT, /* BIT STRING */
    ASN_OSUBV_STR, /* String types, not {BMP,Universal}String  */
    ASN_OSUBV_U16, /* 16-bit character (BMPString) */
    ASN_OSUBV_U32  /* 32-bit character (UniversalString) */
  } subvariant;
} asn_OCTET_STRING_specifics_t;

extern asn_OCTET_STRING_specifics_t asn_SPC_OCTET_STRING_specs;

size_t OCTET_STRING_random_length_constrained(
    const asn_TYPE_descriptor_t*, const asn_encoding_constraints_t*,
    size_t max_length);

#ifdef __cplusplus
}
#endif

#endif /* _OCTET_STRING_H_ */
