Add support for Libpcap File Format (#185)

sindresorhus · Feb 18, 2019 · 2c77d78 · 2c77d78
1 parent 557e555
commit 2c77d78
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Showing 6 changed files with 16 additions and 2 deletions.
diff --git a/fixture/fixture-big-endian.pcap b/fixture/fixture-big-endian.pcap
diff --git a/fixture/fixture-little-endian.pcap b/fixture/fixture-little-endian.pcap
diff --git a/index.js b/index.js
@@ -907,6 +907,13 @@ module.exports = input => {
 		};
 	}
 
+	if (check([0xD4, 0xC3, 0xB2, 0xA1]) || check([0xA1, 0xB2, 0xC3, 0xD4])) {
+		return {
+			ext: 'pcap',
+			mime: 'application/vnd.tcpdump.pcap'
+		};
+	}
+
 	return null;
 };
 

diff --git a/package.json b/package.json
@@ -116,7 +116,8 @@
 		"heic",
 		"wma",
 		"ics",
-		"glb"
+		"glb",
+		"pcap"
 	],
 	"devDependencies": {
 		"ava": "^1.0.1",

diff --git a/readme.md b/readme.md
@@ -181,6 +181,7 @@ The minimum amount of bytes needed to detect a file type. Currently, it's 4100 b
 - [`mpc`](https://en.wikipedia.org/wiki/Musepack) - Musepack (SV7 & SV8)
 - [`ics`](https://en.wikipedia.org/wiki/ICalendar#Data_format) - iCalendar
 - [`glb`](https://github.com/KhronosGroup/glTF) - GL Transmission Format
+- [`pcap`](https://wiki.wireshark.org/Development/LibpcapFileFormat) - Libpcap File Format
 
 *SVG isn't included as it requires the whole file to be read, but you can get it [here](https://github.com/sindresorhus/is-svg).*
 

diff --git a/test.js b/test.js
@@ -100,7 +100,8 @@ const types = [
 	'wma',
 	'dcm',
 	'ics',
-	'glb'
+	'glb',
+	'pcap'
 ];
 
 // Define an entry here only if the fixture has a different
@@ -183,6 +184,10 @@ const names = {
 	mpc: [
 		'fixture-sv7',
 		'fixture-sv8'
+	],
+	pcap: [
+		'fixture-big-endian',
+		'fixture-little-endian'
 	]
 };