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support function

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This commit is contained in:
iceman1001 2025-07-01 16:45:55 +02:00
parent 21bae5c73f
commit 630708c3eb
2 changed files with 29 additions and 0 deletions
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26
client/src/util.c
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@ -1212,6 +1212,29 @@ void binstr_2_bytes(uint8_t *target, size_t *targetlen, const char *src) {
}
}
void binstr_2_u8(char *src, uint8_t n, uint8_t *dest) {
uint8_t b = 0;
// Process binary string
for (uint8_t i = 0; i < n; ++i) {
b = (b << 1) | (src[i] == '1');
}
if (dest) {
*dest = b;
}
}
void binstr_2_u16(char *src, uint8_t n, uint16_t *dest) {
uint16_t b = 0;
// Process binary string
for (uint8_t i = 0; i < n; ++i) {
b = (b << 1) | (src[i] == '1');
}
if (dest) {
*dest = b;
}
}
void hex_xor(uint8_t *d, const uint8_t *x, int n) {
while (n--) {
d[n] ^= x[n];
@ -1611,6 +1634,9 @@ size_t unduplicate(uint8_t *d, size_t n, const uint8_t item_n) {
if (n == 0) {
return 0;
}
if (n == 1) {
return 1;
}
int write_index = 0;

3
client/src/util.h
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@ -141,6 +141,9 @@ int binstr_2_binarray(uint8_t *target, char *source, int length);
void bytes_2_binstr(char *target, const uint8_t *source, size_t sourcelen);
void binstr_2_bytes(uint8_t *target, size_t *targetlen, const char *src);
void binstr_2_u8(char *src, uint8_t n, uint8_t *dest);
void binstr_2_u16(char *src, uint8_t n, uint16_t *dest);
void hex_xor(uint8_t *d, const uint8_t *x, int n);
void hex_xor_token(uint8_t *d, const uint8_t *x, int dn, int xn);