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authorAlexander Kapshuk <alexander.kapshuk@gmail.com>2016-08-22 21:19:17 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-08-31 13:59:31 +0200
commit2d187d58553becd61677a2db0181ff2c7b07c8a3 (patch)
tree7fc5ff008d3437ed2d1d185714f1f70509fe4807 /scripts
parenta46b195ca0d88134a6f60dc28532205075c70cff (diff)
downloadop-kernel-dev-2d187d58553becd61677a2db0181ff2c7b07c8a3.zip
op-kernel-dev-2d187d58553becd61677a2db0181ff2c7b07c8a3.tar.gz
ver_linux: complete awk implementation
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 <alexander.kapshuk@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/ver_linux.awk89
1 files changed, 89 insertions, 0 deletions
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)
+ }
+}
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