From c4983ea61818ba079305571b68380890cc9f09b0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=B5=20Tr=C6=B0=E1=BB=9Dng=20An?=
 <32063562+votruongan@users.noreply.github.com>
Date: Sun, 26 Dec 2021 07:30:29 +0700
Subject: [PATCH] Add support for ELF (Unix Executable and Linkable Format)
 (#514)

---
 core.d.ts           |   2 ++
 core.js             |   7 +++++++
 fixture/fixture.elf | Bin 0 -> 142 bytes
 package.json        |   1 +
 readme.md           |   1 +
 supported.js        |   2 ++
 6 files changed, 13 insertions(+)
 create mode 100644 fixture/fixture.elf

diff --git a/core.d.ts b/core.d.ts
index e15bf839..b437458a 100644
--- 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
index b69d1087..c3685b63 100644
--- 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
new file mode 100644
index 0000000000000000000000000000000000000000..2eeeb9d4d00cf94be2d2a62558028c8f3d74e841
GIT binary patch
literal 142
zcmb<-^>JflWc0{X2+uFdN#SB*U}j)sU|?uyVBs(U(hNITfW+B`*AWT~Obi+ftPCt*
zd5{zXPz?w#0y06E6(lCW0G3|@WG<P&!U4jZKsE^P0uejefg-y>R=ftOdHrfPkYv~a
I5;)rc051O*%K!iX

literal 0
HcmV?d00001

diff --git a/package.json b/package.json
index d68a30c0..7b286dea 100644
--- 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
index 57536359..d6af2e40 100644
--- 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
index 63d6c4bc..e96bb235 100644
--- 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',