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IDF release/v4.0 08219f3cf

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me-no-dev
2020-01-25 14:51:58 +00:00
parent 8c723be135
commit 41ba143063
858 changed files with 37940 additions and 49396 deletions
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66
tools/sdk/include/coap/encode.h
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@ -7,15 +7,17 @@
* of use.
*/
#ifndef _COAP_ENCODE_H_
#define _COAP_ENCODE_H_
#ifndef COAP_ENCODE_H_
#define COAP_ENCODE_H_
#if (BSD >= 199103) || defined(WITH_CONTIKI)
#if (BSD >= 199103) || defined(WITH_CONTIKI) || defined(_WIN32)
# include <string.h>
#else
# include <strings.h>
#endif
#include <stdint.h>
#define Nn 8 /* duplicate definition of N if built on sky motes */
#define ENCODE_HEADER_SIZE 4
#define HIBIT (1 << (Nn - 1))
@ -32,21 +34,63 @@ extern int coap_fls(unsigned int i);
#define coap_fls(i) fls(i)
#endif
#ifndef HAVE_FLSLL
/* include this only if flsll() is not available */
extern int coap_flsll(long long i);
#else
#define coap_flsll(i) flsll(i)
#endif
/* ls and s must be integer variables */
#define COAP_PSEUDOFP_ENCODE_8_4_DOWN(v,ls) (v < HIBIT ? v : (ls = coap_fls(v) - Nn, (v >> ls) & MMASK) + ls)
#define COAP_PSEUDOFP_ENCODE_8_4_UP(v,ls,s) (v < HIBIT ? v : (ls = coap_fls(v) - Nn, (s = (((v + ((1<<ENCODE_HEADER_SIZE<<ls)-1)) >> ls) & MMASK)), s == 0 ? HIBIT + ls + 1 : s + ls))
/**
* Decodes multiple-length byte sequences. buf points to an input byte sequence
* of length len. Returns the decoded value.
* Decodes multiple-length byte sequences. @p buf points to an input byte
* sequence of length @p length. Returns the decoded value.
*
* @param buf The input byte sequence to decode from
* @param length The length of the input byte sequence
*
* @return The decoded value
*/
unsigned int coap_decode_var_bytes(unsigned char *buf,unsigned int len);
unsigned int coap_decode_var_bytes(const uint8_t *buf, unsigned int length);
/**
* Encodes multiple-length byte sequences. buf points to an output buffer of
* sufficient length to store the encoded bytes. val is the value to encode.
* Returns the number of bytes used to encode val or 0 on error.
* Encodes multiple-length byte sequences. @p buf points to an output buffer of
* sufficient length to store the encoded bytes. @p value is the value to
* encode.
* Returns the number of bytes used to encode @p value or 0 on error.
*
* @param buf The output buffer to decode into
* @param length The output buffer size to encode into (must be sufficient)
* @param value The value to encode into the buffer
*
* @return The number of bytes used to encode @p value or @c 0 on error.
*/
unsigned int coap_encode_var_bytes(unsigned char *buf, unsigned int val);
unsigned int coap_encode_var_safe(uint8_t *buf,
size_t length,
unsigned int value);
#endif /* _COAP_ENCODE_H_ */
/**
* @deprecated Use coap_encode_var_safe() instead.
* Provided for backward compatibility. As @p value has a
* maximum value of 0xffffffff, and buf is usually defined as an array, it
* is unsafe to continue to use this variant if buf[] is less than buf[4].
*
* For example
* char buf[1],oops;
* ..
* coap_encode_var_bytes(buf, 0xfff);
* would cause oops to get overwritten. This error can only be found by code
* inspection.
* coap_encode_var_safe(buf, sizeof(buf), 0xfff);
* would catch this error at run-time and should be used instead.
*/
COAP_STATIC_INLINE COAP_DEPRECATED int
coap_encode_var_bytes(uint8_t *buf, unsigned int value
) {
return (int)coap_encode_var_safe(buf, sizeof(value), value);
}
#endif /* COAP_ENCODE_H_ */