Add support for ELF (Unix Executable and Linkable Format) (#514)

sindresorhus · Dec 26, 2021 · c4983ea · c4983ea
1 parent 752afb3
commit c4983ea
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Showing 6 changed files with 13 additions and 0 deletions.
diff --git a/core.d.ts b/core.d.ts
@@ -49,6 +49,7 @@ export type FileExtension =
 	| 'pdf'
 	| 'epub'
 	| 'mobi'
+	| 'elf'
 	| 'exe'
 	| 'swf'
 	| 'rtf'
@@ -195,6 +196,7 @@ export type MimeType =
 	| 'audio/wavpack'
 	| 'audio/amr'
 	| 'application/pdf'
+	| 'application/x-elf'
 	| 'application/x-msdownload'
 	| 'application/x-shockwave-flash'
 	| 'application/rtf'

diff --git a/core.js b/core.js
@@ -214,6 +214,13 @@ class FileTypeParser {
 
 		// -- 4-byte signatures --
 
+		if (this.check([0x7F, 0x45, 0x4C, 0x46])) {
+			return {
+				ext: 'elf',
+				mime: 'application/x-elf',
+			};
+		}
+
 		if (this.check([0x47, 0x49, 0x46])) {
 			return {
 				ext: 'gif',

diff --git a/fixture/fixture.elf b/fixture/fixture.elf
diff --git a/package.json b/package.json
@@ -51,6 +51,7 @@
 		"check",
 		"is",
 		"exif",
+		"elf",
 		"exe",
 		"binary",
 		"buffer",

diff --git a/readme.md b/readme.md
@@ -371,6 +371,7 @@ Returns a `Set<string>` of supported MIME types.
 - [`pdf`](https://en.wikipedia.org/wiki/Portable_Document_Format) - Portable Document Format
 - [`epub`](https://en.wikipedia.org/wiki/EPUB) - E-book file
 - [`mobi`](https://en.wikipedia.org/wiki/Mobipocket) - Mobipocket
+- [`elf`](https://en.wikipedia.org/wiki/Executable_and_Linkable_Format) - Unix Executable and Linkable Format
 - [`exe`](https://en.wikipedia.org/wiki/.exe) - Executable file
 - [`swf`](https://en.wikipedia.org/wiki/SWF) - Adobe Flash Player file
 - [`rtf`](https://en.wikipedia.org/wiki/Rich_Text_Format) - Rich Text Format

diff --git a/supported.js b/supported.js
@@ -47,6 +47,7 @@ export const extensions = [
 	'amr',
 	'pdf',
 	'epub',
+	'elf',
 	'exe',
 	'swf',
 	'rtf',
@@ -193,6 +194,7 @@ export const mimeTypes = [
 	'audio/wavpack',
 	'audio/amr',
 	'application/pdf',
+	'application/x-elf',
 	'application/x-msdownload',
 	'application/x-shockwave-flash',
 	'application/rtf',