bin2hex()

`bin2hex()`#

The bin2hex function converts a binary buffer (bin) into a hexadecimal string representation and stores the result in a provided buffer (bf).

C

Prototype

PUBLIC char *bin2hex(
    char        *bf,
    int         bfsize,
    const uint8_t *bin,
    size_t      bin_len
);

Parameters

Parameter	Type	Description
`bf`	`char *`	Pointer to the output buffer where the hexadecimal string will be stored.
`bfsize`	`int`	The size of the output buffer in bytes. Must be large enough to hold the hexadecimal representation of `bin` (2 characters per byte plus the null terminator).
`bin`	`const uint8_t *`	The input binary data to be converted to a hexadecimal string.
`bin_len`	`size_t`	The length of the input binary data in bytes.

Return Value

Returns a pointer to the output buffer bf containing the hexadecimal string.

Notes

Output Buffer Size:
- Ensure the bfsize is at least 2 * bin_len + 1 to accommodate the full hexadecimal representation and the null terminator.
Conversion Logic:
- Each byte in the input binary data is converted into two hexadecimal characters using the helper function byte_to_strhex.
Termination:
- The output buffer is null-terminated to produce a valid C string.

Example

char hex_buffer[64];
uint8_t binary_data[] = {0x48, 0x65, 0x6C, 0x6C, 0x6F}; // "Hello" in binary
bin2hex(hex_buffer, sizeof(hex_buffer), binary_data, sizeof(binary_data));
// hex_buffer now contains "48656c6c6f"

JS

Prototype

// Not applicable in JS

Python

Prototype

# Not applicable in Python

bin2hex()

bin2hex()#

`bin2hex()`#