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1c9a4be514
Running 'test -r' on an awk variable name whose value is an empty
string results in test being run with no arguments, and causes system()
to return 0, which indicates success when used to test values returned
by function calls. This results in code within the if blocks being run
when it should not be.
Instead of testing if a file is accessible and readable via calls to
system("test -r " file), rely on the value returned by getline to perform
this kind of testing. Getline returns -1 on error, with the code within
the while loops not being run.
Signed-off-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
85 lines
2.7 KiB
Awk
Executable file
85 lines
2.7 KiB
Awk
Executable file
#!/usr/bin/awk -f
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# SPDX-License-Identifier: GPL-2.0
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# Before running this script please ensure that your PATH is
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# typical as you use for compilation/installation. I use
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# /bin /sbin /usr/bin /usr/sbin /usr/local/bin, but it may
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# differ on your system.
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BEGIN {
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usage = "If some fields are empty or look unusual you may have an old version.\n"
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usage = usage "Compare to the current minimal requirements in Documentation/Changes.\n"
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print usage
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system("uname -a")
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printf("\n")
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printversion("GNU C", version("gcc -dumpversion"))
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printversion("GNU Make", version("make --version"))
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printversion("Binutils", version("ld -v"))
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printversion("Util-linux", version("mount --version"))
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printversion("Mount", version("mount --version"))
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printversion("Module-init-tools", version("depmod -V"))
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printversion("E2fsprogs", version("tune2fs"))
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printversion("Jfsutils", version("fsck.jfs -V"))
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printversion("Reiserfsprogs", version("reiserfsck -V"))
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printversion("Reiser4fsprogs", version("fsck.reiser4 -V"))
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printversion("Xfsprogs", version("xfs_db -V"))
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printversion("Pcmciautils", version("pccardctl -V"))
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printversion("Pcmcia-cs", version("cardmgr -V"))
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printversion("Quota-tools", version("quota -V"))
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printversion("PPP", version("pppd --version"))
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printversion("Isdn4k-utils", version("isdnctrl"))
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printversion("Nfs-utils", version("showmount --version"))
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while (getline <"/proc/self/maps" > 0) {
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n = split($0, procmaps, "/")
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if (/libc.*so$/ && match(procmaps[n], /[0-9]+([.]?[0-9]+)+/)) {
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ver = substr(procmaps[n], RSTART, RLENGTH)
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printversion("Linux C Library", ver)
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break
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}
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}
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printversion("Dynamic linker (ldd)", version("ldd --version"))
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while ("ldconfig -p 2>/dev/null" | getline > 0) {
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if (/(libg|stdc)[+]+\.so/) {
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libcpp = $NF
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break
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}
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}
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printversion("Linux C++ Library", version("readlink " libcpp))
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printversion("Procps", version("ps --version"))
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printversion("Net-tools", version("ifconfig --version"))
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printversion("Kbd", version("loadkeys -V"))
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printversion("Console-tools", version("loadkeys -V"))
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printversion("Oprofile", version("oprofiled --version"))
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printversion("Sh-utils", version("expr --v"))
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printversion("Udev", version("udevadm --version"))
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printversion("Wireless-tools", version("iwconfig --version"))
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while ("sort /proc/modules" | getline > 0) {
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mods = mods sep $1
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sep = " "
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}
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printversion("Modules Loaded", mods)
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}
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function version(cmd, ver) {
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cmd = cmd " 2>&1"
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while (cmd | getline > 0) {
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if (!/ver_linux/ && match($0, /[0-9]+([.]?[0-9]+)+/)) {
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ver = substr($0, RSTART, RLENGTH)
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break
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}
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}
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close(cmd)
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return ver
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}
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function printversion(name, value, ofmt) {
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if (value != "") {
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ofmt = "%-20s\t%s\n"
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printf(ofmt, name, value)
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}
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}
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