DUMP
application/octet-stream
Magic Bytes
Offset: 10
23 20 54 68 69 73 20 69 73 20 61 20 73 68 65 6C 6C 20 61 72 63 68 69 76 65
The DUMP format is a shell archive container developed by the Unix community to bundle multiple files and directories into a single self-extracting script. It was primarily utilized for distributing source code and system data across early networked environments before the prevalence of modern binary compression tools. Now a legacy format, it has been superseded by tar; caution is recommended because extraction involves executing the script, which poses potential security risks if sourced from untrusted origins.
Validation Code
How to validate .dump files in Python
Python
def is_dump(file_path: str) -> bool:
"""
Check if file is a valid DUMP by magic bytes.
Signature offset: 10 bytes
"""
signature = bytes([0x23, 0x20, 0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20, 0x73, 0x68, 0x65, 0x6C, 0x6C, 0x20, 0x61, 0x72, 0x63, 0x68, 0x69, 0x76, 0x65])
with open(file_path, "rb") as f:
f.seek(10)
return f.read(25) == signatureHow to validate .dump files in Node.js
Node.js
function isDUMP(buffer: Buffer): boolean {
// Signature offset: 10 bytes
const signature = Buffer.from([0x23, 0x20, 0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20, 0x73, 0x68, 0x65, 0x6C, 0x6C, 0x20, 0x61, 0x72, 0x63, 0x68, 0x69, 0x76, 0x65]);
if (buffer.length < 35) return false;
return buffer.subarray(10, 35).equals(signature);
}
Go
func IsDUMP(data []byte) bool {
// Signature offset: 10 bytes
signature := []byte{0x23, 0x20, 0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20, 0x73, 0x68, 0x65, 0x6C, 0x6C, 0x20, 0x61, 0x72, 0x63, 0x68, 0x69, 0x76, 0x65}
if len(data) < 35 {
return false
}
return bytes.Equal(data[10:35], signature)
}API Endpoint
GET
/api/v1/dump
curl https://filesignature.org/api/v1/dump