From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932414AbcHVSTx (ORCPT ); Mon, 22 Aug 2016 14:19:53 -0400 Received: from mail-lf0-f66.google.com ([209.85.215.66]:33866 "EHLO mail-lf0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932303AbcHVSTu (ORCPT ); Mon, 22 Aug 2016 14:19:50 -0400 From: Alexander Kapshuk To: linux-kernel@vger.kernel.org Cc: gregkh@linuxfoundation.org, Alexander Kapshuk Subject: [PATCH 1/3] ver_linux: complete awk implementation Date: Mon, 22 Aug 2016 21:19:17 +0300 Message-Id: <1471889959-8447-1-git-send-email-alexander.kapshuk@gmail.com> X-Mailer: git-send-email 2.7.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The algorithm that extracts the version number of the utility being queried, and prints the name of the utility and its version number is currently implemented in awk. The code is used throughout the script, making its use repetative. The proposed implementation confines the algorithm in question to a function, which makes the script easier to read overall, as well as considerably reduces the number of lines of code. Every attempt has been made to retain the look and the format generated by the current implementation. Signed-off-by: Alexander Kapshuk --- scripts/ver_linux.awk | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100755 scripts/ver_linux.awk diff --git a/scripts/ver_linux.awk b/scripts/ver_linux.awk new file mode 100755 index 0000000..430b201 --- /dev/null +++ b/scripts/ver_linux.awk @@ -0,0 +1,89 @@ +#!/bin/awk -f +# Before running this script please ensure that your PATH is +# typical as you use for compilation/installation. I use +# /bin /sbin /usr/bin /usr/sbin /usr/local/bin, but it may +# differ on your system. + +BEGIN { + usage = "If some fields are empty or look unusual you may have an old version.\n" + usage = usage "Compare to the current minimal requirements in Documentation/Changes.\n" + print usage + + system("uname -a") + printf("\n") + + printversion("GNU C", version("gcc -dumpversion 2>&1")) + printversion("GNU Make", version("make --version 2>&1")) + printversion("Binutils", version("ld -v 2>&1")) + printversion("Util-linux", version("mount --version 2>&1")) + printversion("Mount", version("mount --version 2>&1")) + printversion("Module-init-tools", version("depmod -V 2>&1")) + printversion("E2fsprogs", version("tune2fs 2>&1")) + printversion("Jfsutils", version("fsck.jfs -V 2>&1")) + printversion("Reiserfsprogs", version("reiserfsck -V 2>&1")) + printversion("Reiser4fsprogs", version("fsck.reiser4 -V 2>&1")) + printversion("Xfsprogs", version("xfs_db -V 2>&1")) + printversion("Pcmciautils", version("pccardctl -V 2>&1")) + printversion("Pcmcia-cs", version("cardmgr -V 2>&1")) + printversion("Quota-tools", version("quota -V 2>&1")) + printversion("PPP", version("pppd --version 2>&1")) + printversion("Isdn4k-utils", version("isdnctrl 2>&1")) + printversion("Nfs-utils", version("showmount --version 2>&1")) + + 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 + } + } + } + + printversion("Dynamic linker (ldd)", version("ldd --version 2>&1")) + + while ("ldconfig -p 2>/dev/null" | getline > 0) { + if (/(libg|stdc)[+]+\.so/) { + libcpp = $NF + break + } + } + if (system("test -r " libcpp) == 0) + printversion("Linux C++ Library", version("readlink " libcpp)) + + printversion("Procps", version("ps --version 2>&1")) + printversion("Net-tools", version("ifconfig --version 2>&1")) + printversion("Kbd", version("loadkeys -V 2>&1")) + printversion("Console-tools", version("loadkeys -V 2>&1")) + printversion("Oprofile", version("oprofiled --version 2>&1")) + printversion("Sh-utils", version("expr --v 2>&1")) + printversion("Udev", version("udevadm --version 2>&1")) + printversion("Wireless-tools", version("iwconfig --version 2>&1")) + + if (system("test -r /proc/modules") == 0) { + while ("sort /proc/modules" | getline > 0) { + mods = mods sep $1 + sep = " " + } + 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 +} + +function printversion(name, value, ofmt) { + if (value != "") { + ofmt = "%-20s\t%s\n" + printf(ofmt, name, value) + } +} -- 2.7.3