ber_memrealloc - Linux

Overview

ber_memrealloc is a tool for bulk reallocating BER elements in memory. It can be used to free up memory occupied by unused BER elements or to reclaim memory from fragmented BER elements.

Syntax

ber_memrealloc [-hv] [-r] [-f] <ASN.1 definition file> <BER encoded data file>

Options/Flags

• -h: Displays a help message and exits.
• -v: Verbose mode. Outputs additional information about the reallocation process.
• -r: Recover mode. Attempts to recover usable memory from fragmented BER elements, even if it means losing some data.
• -f: Force mode. Reallocates memory even if the input BER data is invalid.

Examples

To reallocate memory for the X509certificate element in the certificate.ber file:

ber_memrealloc certificate.asn certificate.ber

To recover memory from fragmented BER elements in the certificate.ber file:

ber_memrealloc -r certificate.asn certificate.ber

Common Issues

• Error while loading ASN.1 definition: The ASN.1 definition file may be invalid or missing.
• Error while decoding BER data: The BER data file may be corrupted or invalid.
• Memory reallocation failed: There may not be enough memory available to reallocate. Try using the -f option to force reallocation, but note that this may result in data loss.

Integration

ber_memrealloc can be used in conjunction with other tools for bulk processing of BER data. For example, it can be used to reduce the memory footprint of a large BER data set before passing it to a parser or other processing tool.

Related Commands

• asn1c: An ASN.1 compiler that can generate BER encoding and decoding routines.
• ber_decoder: A library for decoding BER data.