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ver_linux: Process input coming from procmaps that matches libc only 

Currently, input coming from /proc/self/maps is split into fields without
checking whether or not it matches libc.so. This is not efficient.
All text processing should only be performed on lines of input that
match libc.so.

Signed-off-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Kapshuk 2018-05-31 22:22:46 +03:00 committed by Greg Kroah-Hartman
parent ce054546cc
commit 34fe3cfda8
1 changed files with 7 additions and 5 deletions
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12
scripts/ver_linux
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@ -32,11 +32,13 @@ BEGIN {
printversion("Nfs-utils", version("showmount --version"))
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
if (/libc.*\.so$/) {
n = split($0, procmaps, "/")
if (match(procmaps[n], /[0-9]+([.]?[0-9]+)+/)) {
ver = substr(procmaps[n], RSTART, RLENGTH)
printversion("Linux C Library", ver)
break
}
}
}