linux-kernel - [PATCH 20/32] ver_linux: wrap up querying for version of 'Linux C Library' in awk function

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Date:	Tue, 28 Jun 2016 13:18:54 +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 20/32] ver_linux: wrap up querying for version of 'Linux C Library' in awk function

Wrap up querying for version of 'Linux C Library', and the resulting
formatted output in an awk function.

Signed-off-by: Alexander Kapshuk <alexander.kapshuk@...il.com>
---
 scripts/ver_linux | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/scripts/ver_linux b/scripts/ver_linux
index bb51c5d..d3faf4a 100755
--- a/scripts/ver_linux
+++ b/scripts/ver_linux
@@ -30,12 +30,16 @@ BEGIN {
 	printversion("Isdn4k-utils", version("isdnctrl 2>&1"))
 	printversion("Nfs-utils", version("showmount --version 2>&1"))
 
-test -r /proc/self/maps &&
-sed '
-	/.*libc-\(.*\)\.so$/!d
-	s//Linux C Library\t\t\1/
-	q
-' /proc/self/maps
+	if (system("test -r /proc/self/maps") == 0) {
+		while (getline <"/proc/self/maps" > 0) {
+			n = split($0, procmaps, "/")
+			if (/libc.*so$/ && match(procmaps[n], /[0-9]+([.]?[0-9]+)+/)) {
+				ver = substr(procmaps[n], RSTART, RLENGTH)
+				printversion("Linux C Library", ver)
+				break
+			}
+		}
+	}
 
 ldd --version 2>&1 |
 awk '/^ldd/{
-- 
2.7.3