ber_get_null - Linux
Overview
ber_get_null extracts a null-valued BER element from a BER encoded message.
Syntax
ber_get_null(ber_element *ber, ber_identifier_t id)
Options/Flags
- ber: A pointer to the BER element to decode.
- id: The identifier of the BER element to retrieve.
Examples
// Decoding a NULL element with a specific identifier
int identifier = 1;
ber_element *element = ...;
ber_identifier_t null = ber_get_null(element, identifier);
if (!null) {
// NULL element not found
}
// Decoding a NULL element without a specific identifier
ber_element *element = ...;
ber_identifier_t null = ber_get_null(element, 0);
if (!null) {
// NULL element at the current position not found
}
Common Issues
- If the BER element does not contain a NULL element with the specified identifier, NULL will be returned.
- If the BER element is not properly encoded, an error will be raised.
Integration
ber_get_null can be used in conjunction with other BER decoding functions to parse complex BER messages.
Related Commands
- ber_get_integer: Decodes an integer value from a BER element.
- ber_get_string: Decodes a string value from a BER element.
- ber_get_sequence: Decodes a sequence from a BER element.