+++ /dev/null
-/*
- * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
- * Redistribution and modifications are permitted subject to BSD license.
- */
-#ifndef ASN_CODECS_H
-#define ASN_CODECS_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-struct asn_TYPE_descriptor_s; /* Forward declaration */
-
-/*
- * This structure defines a set of parameters that may be passed
- * to every ASN.1 encoder or decoder function.
- * WARNING: if max_stack_size member is set, and you are calling the
- * function pointers of the asn_TYPE_descriptor_t directly,
- * this structure must be ALLOCATED ON THE STACK!
- * If you can't always satisfy this requirement, use ber_decode(),
- * xer_decode() and uper_decode() functions instead.
- */
-typedef struct asn_codec_ctx_s {
- /*
- * Limit the decoder routines to use no (much) more stack than a given
- * number of bytes. Most of decoders are stack-based, and this
- * would protect against stack overflows if the number of nested
- * encodings is high.
- * The OCTET STRING, BIT STRING and ANY BER decoders are heap-based,
- * and are safe from this kind of overflow.
- * A value from getrlimit(RLIMIT_STACK) may be used to initialize
- * this variable. Be careful in multithreaded environments, as the
- * stack size is rather limited.
- */
- size_t max_stack_size; /* 0 disables stack bounds checking */
-} asn_codec_ctx_t;
-
-/*
- * Type of the return value of the encoding functions (der_encode, xer_encode).
- */
-typedef struct asn_enc_rval_s {
- /*
- * Number of bytes encoded.
- * -1 indicates failure to encode the structure.
- * In this case, the members below this one are meaningful.
- */
- ssize_t encoded;
-
- /*
- * Members meaningful when (encoded == -1), for post mortem analysis.
- */
-
- /* Type which cannot be encoded */
- const struct asn_TYPE_descriptor_s *failed_type;
-
- /* Pointer to the structure of that type */
- const void *structure_ptr;
-} asn_enc_rval_t;
-#define ASN__ENCODE_FAILED do { \
- asn_enc_rval_t tmp_error; \
- tmp_error.encoded = -1; \
- tmp_error.failed_type = td; \
- tmp_error.structure_ptr = sptr; \
- ASN_DEBUG("Failed to encode element %s", td ? td->name : ""); \
- return tmp_error; \
-} while(0)
-#define ASN__ENCODED_OK(rval) do { \
- rval.structure_ptr = 0; \
- rval.failed_type = 0; \
- return rval; \
-} while(0)
-
-/*
- * Type of the return value of the decoding functions (ber_decode, xer_decode)
- *
- * Please note that the number of consumed bytes is ALWAYS meaningful,
- * even if code==RC_FAIL. This is to indicate the number of successfully
- * decoded bytes, hence providing a possibility to fail with more diagnostics
- * (i.e., print the offending remainder of the buffer).
- */
-enum asn_dec_rval_code_e {
- RC_OK, /* Decoded successfully */
- RC_WMORE, /* More data expected, call again */
- RC_FAIL /* Failure to decode data */
-};
-typedef struct asn_dec_rval_s {
- enum asn_dec_rval_code_e code; /* Result code */
- size_t consumed; /* Number of bytes consumed */
-} asn_dec_rval_t;
-#define ASN__DECODE_FAILED do { \
- asn_dec_rval_t tmp_error; \
- tmp_error.code = RC_FAIL; \
- tmp_error.consumed = 0; \
- ASN_DEBUG("Failed to decode element %s", td ? td->name : ""); \
- return tmp_error; \
-} while(0)
-#define ASN__DECODE_STARVED do { \
- asn_dec_rval_t tmp_error; \
- tmp_error.code = RC_WMORE; \
- tmp_error.consumed = 0; \
- return tmp_error; \
-} while(0)
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ASN_CODECS_H */
Code Review / sim / e2-interface.git / blobdiff