linux-kernel - [PATCH 31/32] ver_linux: 'version()' function definition

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Message-Id: <1467109146-20331-31-git-send-email-alexander.kapshuk@gmail.com>
Date:	Tue, 28 Jun 2016 13:19:05 +0300
From:	Alexander Kapshuk <alexander.kapshuk@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	gregkh@...uxfoundation.org,
	Alexander Kapshuk <alexander.kapshuk@...il.com>
Subject: [PATCH 31/32] ver_linux: 'version()' function definition

Definition of the 'version()' function. The function encapsulates the
algorithm that extracts the version number of the utility being queried,
and returns it as a value.

Signed-off-by: Alexander Kapshuk <alexander.kapshuk@...il.com>
---
 scripts/ver_linux | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/scripts/ver_linux b/scripts/ver_linux
index 3bf72ad..27b43ae 100755
--- a/scripts/ver_linux
+++ b/scripts/ver_linux
@@ -69,3 +69,14 @@ BEGIN {
 		printversion("Modules Loaded", mods)
 	}
 }
+
+function version(cmd,    ver) {
+	while (cmd | getline > 0) {
+		if (!/ver_linux/ && match($0, /[0-9]+([.]?[0-9]+)+/)) {
+			ver = substr($0, RSTART, RLENGTH)
+			break
+		}
+	}
+	close(cmd)
+	return ver
+}
-- 
2.7.3