120 lines
2.4 KiB
C
120 lines
2.4 KiB
C
#ifndef __LW_H
|
|
#define __LW_H
|
|
|
|
#include <stdint.h>
|
|
#include <arpa/inet.h>
|
|
|
|
#include "bstr.h"
|
|
|
|
|
|
|
|
/**
|
|
* @defgroup LW LWAPP Functions
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* Put a byte to to an output buffer
|
|
*
|
|
* @param dst destination buffer
|
|
* @param b byte to put
|
|
* @return 1 (number of bytes put)
|
|
*/
|
|
#define lw_put_byte(dst,b) \
|
|
(*(dst)=b,1)
|
|
|
|
/**
|
|
* Put a word to to an output buffer. The word
|
|
* is converted to network byte order.
|
|
*
|
|
* @param dst destination buffer
|
|
* @param w word to put
|
|
* @return 2 (number of bytes put)
|
|
*/
|
|
#define lw_put_word(dst,w)\
|
|
(*((uint16_t*)(dst)) = htons(w),2)
|
|
|
|
/**
|
|
* Put a dword to an output buffer. The dword
|
|
* is converted to network byte order.
|
|
*
|
|
* @param dst destination buffer
|
|
* @param dw dword to put
|
|
* @return 4 (number of bytes put)
|
|
*/
|
|
#define lw_put_dword(dst,dw)\
|
|
(*((uint32_t*)(dst)) = htonl(dw),4)
|
|
|
|
/**
|
|
* Same as #lw_set_byte, but w/o return value
|
|
*/
|
|
#define lw_set_byte(dst,b) \
|
|
(*(dst)=b)
|
|
|
|
/**
|
|
* Same as #lw_set_word, but no return value
|
|
*/
|
|
#define lw_set_word(dst,w) \
|
|
(*((uint16_t*)(dst)) = htons(w))
|
|
|
|
/**
|
|
* Same as #lw_put_dword, but the return value
|
|
* is unspecified.
|
|
*/
|
|
#define lw_set_dword(dst,dw)\
|
|
(*((uint32_t*)(dst)) = htonl(dw))
|
|
|
|
/**
|
|
* Read a byte from input buffer
|
|
* @param src Pointer to input buffer
|
|
* @return the byte reed
|
|
*/
|
|
#define lw_get_byte(src)\
|
|
(*(uint8_t*)(src))
|
|
|
|
/**
|
|
* Read a word from input buffer and convert it from
|
|
* network format to local format.
|
|
* @param src Pointer to input buffer
|
|
* @return word
|
|
*/
|
|
#define lw_get_word(src) \
|
|
(ntohs( *((uint16_t*)(src))))
|
|
|
|
/**
|
|
* Read a dword from input buffer and convert it from
|
|
* network format to local
|
|
* @param src Pointer to input bufffer
|
|
* @return the dword red
|
|
*/
|
|
#define lw_get_dword(src) \
|
|
(ntohl( *((uint32_t*)(src))))
|
|
|
|
|
|
|
|
int lw_put_data(uint8_t*dst,const uint8_t*data,uint16_t len);
|
|
int lw_put_bstr(uint8_t * dst, const bstr_t b);
|
|
int lw_put_bstr16(uint8_t * dst, const bstr16_t b);
|
|
int lw_put_str(uint8_t*dst,const uint8_t *str);
|
|
int lw_put_elem_hdr(uint8_t *dst,uint8_t type,uint16_t len);
|
|
int lw_put_vendor(uint8_t * dst, uint32_t vendorid,
|
|
uint16_t elemid, uint16_t len);
|
|
|
|
|
|
/*
|
|
int lw_in_vendor_specific(struct conn *conn, struct cw_action_in *a,
|
|
uint8_t * data, int len, struct sockaddr *from);
|
|
*/
|
|
|
|
|
|
uint16_t lw_checksum(uint8_t *d,int len);
|
|
|
|
#define lw_foreach_elem(d,msg,len) for(d=msg; d<msg+len; d=d+3+LWMSGELEM_GET_LEN(d))
|
|
|
|
/**
|
|
* @} LW
|
|
*/
|
|
|
|
#endif
|
|
|