be32toh - Linux

Overview

be32toh converts a 32-bit big endian integer from network byte order to host byte order.

Syntax

be32toh <hexadecimal value>

Options/Flags

None

Examples

Convert 0x12345678 from big endian to host byte order:

be32toh 12345678

Output:

305419896

Extract and convert the 32-bit value at byte 4 in a file:

dd if=file.bin skip=4 bs=4 count=1 | be32toh

Common Issues

• Incorrect input format: The input value must be a valid hexadecimal number.
• Out of range values: The result is a 32-bit integer, so values outside the range -2147483648 to 2147483647 will be wrapped around.

Integration

• Networking: Convert network byte order values to host byte order for data transfer and processing.
• File manipulation: Extract and convert big endian values from binary files.

Related Commands

• od: Display data in various formats, including hexadecimal.
• hexdump: Dump a file in hexadecimal format.
• *ntoh: Convert numbers from network byte order to host byte order for different data types (e.g., ntohl for 32-bit longs, ntohs for 16-bit shorts).