mirror of
git://git.psyc.eu/libpsyc
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111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
#include <stdint.h>
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#include <string.h>
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enum PSYC_Flags
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{
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PSYC_HEADER_ONLY = 1
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};
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enum PSYC_ReturnCodes
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{
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PSYC_ERROR_END = -7,
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PSYC_ERROR_METHOD = -6,
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PSYC_ERROR_VAR_LEN = -5,
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PSYC_ERROR_VAR_TAB = -4,
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PSYC_ERROR_VAR_NAME = -3,
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PSYC_ERROR_LENGTH = -2,
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PSYC_ERROR = -1,
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PSYC_SUCCESS = 0,
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PSYC_BODY = 1,
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PSYC_BODY_INCOMPLETE = 2,
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PSYC_INSUFFICIENT = 3,
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PSYC_ROUTING = 4,
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PSYC_ENTITY = 5,
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PSYC_ENTITY_INCOMPLETE = 6,
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PSYC_HEADER_COMPLETE = 7,
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PSYC_COMPLETE = 8,
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PSYC_INCOMPLETE = 9,
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};
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enum PSYC_Parts
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{
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PSYC_PART_RESET = -1,
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PSYC_PART_HEADER = 0,
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PSYC_PART_LENGTH,
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PSYC_PART_HEADER_END,
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PSYC_PART_CONTENT,
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PSYC_PART_METHOD,
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PSYC_PART_DATA,
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PSYC_PART_END,
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};
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typedef struct
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{
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unsigned int length;
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const uint8_t * ptr;
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} PSYC_Array;
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typedef struct
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{
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unsigned int cursor; /** current position in buffer */
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unsigned int startc; /** line start position */
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PSYC_Array buffer;
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uint8_t flags;
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char part; /** part of the packet being parsed currently, see PSYC_Parts */
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unsigned int contentParsed; /** number of bytes parsed from the content so far */
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unsigned int contentLength; /** expected length of the content */
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char contentLengthFound; /** is there a length given for this packet? */
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unsigned int valueParsed; /** number of bytes parsef from the value so far */
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unsigned int valueLength; /** expected length of the value */
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} PSYC_State;
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#ifndef PSYC_COMPILE_LIBRARY
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/* @brief shortcut for creating an array
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*
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* @param memory pointer to the buffer
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* @param length length of that buffer
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*
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* @returns an instance of the PSYC_Array struct */
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inline PSYC_Array PSYC_createArray (uint8_t* const memory, unsigned int length)
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{
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PSYC_Array arr = {length, memory};
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return arr;
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}
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/* @brief initiates the state struct with flags
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*
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* @param state pointer to the state struct that should be initiated
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* @param flags the flags that one ones to set, see PSYC_Flags */
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inline void PSYC_initState2 (PSYC_State* state, uint8_t flags )
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{
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memset(state, 0, sizeof(PSYC_State));
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state->flags = flags;
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}
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/* @brief initiates the state struct
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*
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* @param state pointer to the state struct that should be initiated */
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inline void PSYC_initState (PSYC_State* state)
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{
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memset(state, 0, sizeof(PSYC_State));
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}
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inline void PSYC_nextBuffer (PSYC_State* state, PSYC_Array newBuf)
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{
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state->buffer = newBuf;
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state->cursor = 0;
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}
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inline unsigned int PSYC_getContentLength (PSYC_State* s)
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{
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return s->contentLength;
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}
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#endif
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int PSYC_parse(PSYC_State* state, uint8_t* modifier, PSYC_Array* name, PSYC_Array* value);
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