ber_get_bitstring - Linux

Overview

ber_get_bitstring extracts a bitstring value from the BER-encoded object.

Syntax

ber_get_bitstring(ber_element *ber, bitstr_t *bs)

Options/Flags

None

Examples

bitstr_t bs;
ber_tag_t tag = { LBER_TYPE_BITSTRING, LBER_FLAGS_DEFAULT, 0 };

// Decode the BITSTRING
if (ber_scanf_tag(ber, &tag) == LBER_ERROR) {
    perror("ber_scanf_tag");
    return EXIT_FAILURE;
}
if (ber_get_bitstring(ber, &bs) == -1) {
    perror("ber_get_bitstring");
    return EXIT_FAILURE;
}

// Print the decoded BITSTRING
printf("Bitstring value: ");
for (uint8_t i = 0; i < bs.length; i++) {
    printf("%02x ", bs.data[i]);
}
printf("\n");

Common Issues

• Ensure the provided ber element is valid and contains a BER-encoded bitstring value.
• Check the return value of ber_get_bitstring to determine the success or failure of the operation.

Integration

ber_get_bitstring can be used in conjunction with other BER decoding functions to parse complex BER-encoded data structures. It can be integrated into custom applications or scripts that require the extraction of bitstring values from BER-encoded messages.

Related Commands

• ber_printf_bitstring: Encodes a bitstring value into BER format.
• ber_get_integer: Extracts an integer value from a BER-encoded object.
• libbere: Official documentation for the libbere library, which provides functions for BER encoding and decoding.