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add le data conversions to utils

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merlokk 2021-07-25 16:24:09 +03:00
commit a0429c3baa
2 changed files with 38 additions and 0 deletions
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30
client/src/util.c
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@ -503,6 +503,36 @@ void SwapEndian64ex(const uint8_t *src, const size_t len, const uint8_t blockSiz
}
}
uint16_t MemLeToUint2byte(uint8_t *data) {
return (data[1] << 8) + data[0];
}
uint32_t MemLeToUint3byte(uint8_t *data) {
return (data[2] << 16) + (data[1] << 8) + data[0];
}
uint32_t MemLeToUint4byte(uint8_t *data) {
return (data[3] << 24) + (data[2] << 16) + (data[1] << 8) + data[0];
}
void Uint2byteToMemLe(uint8_t *data, uint16_t value) {
data[0] = (value >> 8) & 0xff;
data[1] = value & 0xff;
}
void Uint3byteToMemLe(uint8_t *data, uint32_t value) {
data[0] = (value >> 16) & 0xff;
data[1] = (value >> 8) & 0xff;
data[2] = value & 0xff;
}
void Uint4byteToMemLe(uint8_t *data, uint32_t value) {
data[0] = (value >> 24) & 0xff;
data[1] = (value >> 16) & 0xff;
data[2] = (value >> 8) & 0xff;
data[3] = value & 0xff;
}
// -------------------------------------------------------------------------
// string parameters lib
// -------------------------------------------------------------------------

8
client/src/util.h
View file

@ -64,6 +64,14 @@ void bytes_to_bytebits(void *src, size_t srclen, void *dest);
uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockSize);
void SwapEndian64ex(const uint8_t *src, const size_t len, const uint8_t blockSize, uint8_t *dest);
// LE to/from memory
uint16_t MemLeToUint2byte(uint8_t *data);
uint32_t MemLeToUint3byte(uint8_t *data);
uint32_t MemLeToUint4byte(uint8_t *data);
void Uint2byteToMemLe(uint8_t *data, uint16_t value);
void Uint3byteToMemLe(uint8_t *data, uint32_t value);
void Uint4byteToMemLe(uint8_t *data, uint32_t value);
// parameter helper functions
int param_getlength(const char *line, int paramnum);
char param_getchar(const char *line, int paramnum);