Truevision TGA (Legacy MIME Alias)

import os
# To reliably detect TGA 2.0, you must check the footer at the end of the file
with open('texture.tga', 'rb') as f:
    f.seek(-18, os.SEEK_END)
    signature = f.read(17)
    is_tga = signature == b'TRUEVISION-XFILE.'
    print('Is TGA 2.0:', is_tga)

const fs = require('fs');
// Seeking to the end of the file to check for the TGA 2.0 footer
const stats = fs.statSync('texture.tga');
if (stats.size >= 18) {
    const buffer = Buffer.alloc(17);
    const fd = fs.openSync('texture.tga', 'r');
    fs.readSync(fd, buffer, 0, 17, stats.size - 18);
    fs.closeSync(fd);
    const isTGA = buffer.toString('ascii') === 'TRUEVISION-XFILE.';
    console.log('Is Truevision TGA v2:', isTGA);
}

import (
    "os"
)
// Native Go HTTP detection will not recognize TGA.
// You must read the end of the file:
// file, _ := os.Open("texture.tga")
// stat, _ := file.Stat()
// buf := make([]byte, 17)
// file.ReadAt(buf, stat.Size()-18)
// isTGA := string(buf) == "TRUEVISION-XFILE."

$mime = mime_content_type('texture.tga');
echo $mime; // May return 'image/x-tga', 'image/x-targa', or 'application/octet-stream' depending on OS magic definitions and whether it is a v1.0 or v2.0 file.