+++ /dev/null
-/*
- * Copyright (c) 2005, 2006 Lev Walkin <vlm@lionet.info>. All rights reserved.
- * Redistribution and modifications are permitted subject to BSD license.
- */
-#ifndef _PER_SUPPORT_H_
-#define _PER_SUPPORT_H_
-
-#include <asn_system.h> /* Platform-specific types */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * Pre-computed PER constraints.
- */
-typedef struct asn_per_constraint_s {
- enum asn_per_constraint_flags {
- APC_UNCONSTRAINED = 0x0, /* No PER visible constraints */
- APC_SEMI_CONSTRAINED = 0x1, /* Constrained at "lb" */
- APC_CONSTRAINED = 0x2, /* Fully constrained */
- APC_EXTENSIBLE = 0x4 /* May have extension */
- } flags;
- int range_bits; /* Full number of bits in the range */
- int effective_bits; /* Effective bits */
- long lower_bound; /* "lb" value */
- long upper_bound; /* "ub" value */
-} asn_per_constraint_t;
-typedef struct asn_per_constraints_s {
- asn_per_constraint_t value;
- asn_per_constraint_t size;
-} asn_per_constraints_t;
-
-/*
- * This structure describes a position inside an incoming PER bit stream.
- */
-typedef struct asn_per_data_s {
- const uint8_t *buffer; /* Pointer to the octet stream */
- size_t nboff; /* Bit offset to the meaningful bit */
- size_t nbits; /* Number of bits in the stream */
-} asn_per_data_t;
-
-/*
- * Extract a small number of bits (<= 31) from the specified PER data pointer.
- * This function returns -1 if the specified number of bits could not be
- * extracted due to EOD or other conditions.
- */
-int32_t per_get_few_bits(asn_per_data_t *per_data, int get_nbits);
-
-/*
- * Extract a large number of bits from the specified PER data pointer.
- * This function returns -1 if the specified number of bits could not be
- * extracted due to EOD or other conditions.
- */
-int per_get_many_bits(asn_per_data_t *pd, uint8_t *dst, int right_align,
- int get_nbits);
-
-/*
- * Get the length "n" from the Unaligned PER stream.
- */
-ssize_t uper_get_length(asn_per_data_t *pd,
- int effective_bound_bits,
- int *repeat);
-
-/*
- * Get the normally small non-negative whole number.
- */
-ssize_t uper_get_nsnnwn(asn_per_data_t *pd);
-
-/*
- * This structure supports forming PER output.
- */
-typedef struct asn_per_outp_s {
- uint8_t *buffer; /* Pointer into the (tmpspace) */
- size_t nboff; /* Bit offset to the meaningful bit */
- size_t nbits; /* Number of bits left in (tmpspace) */
- uint8_t tmpspace[32]; /* Preliminary storage to hold data */
- int (*outper)(const void *data, size_t size, void *op_key);
- void *op_key; /* Key for (outper) data callback */
- size_t flushed_bytes; /* Bytes already flushed through (outper) */
-} asn_per_outp_t;
-
-/* Output a small number of bits (<= 31) */
-int per_put_few_bits(asn_per_outp_t *per_data, uint32_t bits, int obits);
-
-/* Output a large number of bits */
-int per_put_many_bits(asn_per_outp_t *po, const uint8_t *src, int put_nbits);
-
-/*
- * Put the length "n" to the Unaligned PER stream.
- * This function returns the number of units which may be flushed
- * in the next units saving iteration.
- */
-ssize_t uper_put_length(asn_per_outp_t *po, size_t whole_length);
-
-/*
- * Put the normally small non-negative whole number.
- */
-int uper_put_nsnnwn(asn_per_outp_t *po, int n);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _PER_SUPPORT_H_ */