Gecko [ www.finalhopeacademy.com ]

Name	Size	Permission
7z	40 B	-rwxr-xr-x
7za	41 B	-rwxr-xr-x
GET	14.71 KB	-rwxr-xr-x
HEAD	14.71 KB	-rwxr-xr-x
Magick-config	1.23 KB	-rwxr-xr-x
MagickCore-config	1.24 KB	-rwxr-xr-x
MagickWand-config	1.25 KB	-rwxr-xr-x
Mail	383.67 KB	-rwxr-xr-x
POST	14.71 KB	-rwxr-xr-x
Wand-config	1.23 KB	-rwxr-xr-x
[	40.52 KB	-rwxr-xr-x
a2p	105.32 KB	-rwxr-xr-x
aclocal	35.87 KB	-rwxr-xr-x
aclocal-1.13	35.87 KB	-rwxr-xr-x
addr2line	28.42 KB	-rwxr-xr-x
agentxtrap	19.16 KB	-rwxr-xr-x
alias	29 B	-rwxr-xr-x
altermime	108.35 KB	-rwxr-xr-x
amavisd-agent	13.12 KB	-rwxr-xr-x
amavisd-nanny	11.72 KB	-rwxr-xr-x
amavisd-release	12.35 KB	-rwxr-xr-x
amavisd-signer	36.85 KB	-rwxr-xr-x
amavisd-submit	9.09 KB	-rwxr-xr-x
animate	7.04 KB	-rwxr-xr-x
apr-1-config	6.76 KB	-rwxr-xr-x
apropos	45.49 KB	-rwxr-xr-x
apu-1-config	5.97 KB	-rwxr-xr-x
ar	61.22 KB	-rwxr-xr-x
arch	32.3 KB	-rwxr-xr-x
aria_chk	4.56 MB	-rwxr-xr-x
aria_dump_log	4.36 MB	-rwxr-xr-x
aria_ftdump	4.37 MB	-rwxr-xr-x
aria_pack	4.4 MB	-rwxr-xr-x
aria_read_log	4.52 MB	-rwxr-xr-x
arj	199.56 KB	-rwxr-xr-x
arjdisp	12.55 KB	-rwxr-xr-x
arpaname	7.03 KB	-rwxr-xr-x
as	377.36 KB	-rwxr-xr-x
aserver	28.21 KB	-rwxr-xr-x
aspell	163.35 KB	-rwxr-xr-x
at	51.73 KB	-rwsr-xr-x
atq	51.73 KB	-rwsr-xr-x
atrm	51.73 KB	-rwsr-xr-x
audit2allow	14.21 KB	-rwxr-xr-x
audit2why	14.21 KB	-rwxr-xr-x
aulast	15.48 KB	-rwxr-xr-x
aulastlog	11.35 KB	-rwxr-xr-x
ausyscall	11.18 KB	-rwxr-xr-x
autoconf	14.42 KB	-rwxr-xr-x
autoheader	8.33 KB	-rwxr-xr-x
autom4te	31.43 KB	-rwxr-xr-x
automake	246.44 KB	-rwxr-xr-x
automake-1.13	246.44 KB	-rwxr-xr-x
autoreconf	20.57 KB	-rwxr-xr-x
autoscan	16.72 KB	-rwxr-xr-x
autoupdate	33.08 KB	-rwxr-xr-x
auvirt	31.93 KB	-rwxr-xr-x
awk	418.54 KB	-rwxr-xr-x
base64	36.48 KB	-rwxr-xr-x
basename	28.35 KB	-rwxr-xr-x
bash	941.93 KB	-rwxr-xr-x
bashbug	6.8 KB	-rwxr-xr-x
bashbug-64	6.8 KB	-rwxr-xr-x
batch	137 B	-rwxr-xr-x
bc	81.47 KB	-rwxr-xr-x
bdftopcf	44.19 KB	-rwxr-xr-x
bdftruncate	11.2 KB	-rwxr-xr-x
bg	26 B	-rwxr-xr-x
bison	393.34 KB	-rwxr-xr-x
bond2team	22.74 KB	-rwxr-xr-x
bootctl	68.99 KB	-rwxr-xr-x
bunzip2	31.89 KB	-rwxr-xr-x
busctl	403.2 KB	-rwxr-xr-x
bzcat	31.89 KB	-rwxr-xr-x
bzcmp	2.08 KB	-rwxr-xr-x
bzdiff	2.08 KB	-rwxr-xr-x
bzgrep	1.64 KB	-rwxr-xr-x
bzip2	31.89 KB	-rwxr-xr-x
bzip2recover	15.24 KB	-rwxr-xr-x
bzless	1.23 KB	-rwxr-xr-x
bzmore	1.23 KB	-rwxr-xr-x
c++	754.59 KB	-rwxr-xr-x
c++filt	27.92 KB	-rwxr-xr-x
c2ph	35.75 KB	-rwxr-xr-x
c89	224 B	-rwxr-xr-x
c99	215 B	-rwxr-xr-x
ca-legacy	1.6 KB	-rwxr-xr-x
cabextract	68.7 KB	-rwxr-xr-x
cairo-sphinx	69.99 KB	-rwxr-xr-x
cal	36.8 KB	-rwxr-xr-x
captoinfo	64.26 KB	-rwxr-xr-x
cat	52.81 KB	-rwxr-xr-x
catchsegv	3.26 KB	-rwxr-xr-x
catman	36.75 KB	-rwxr-xr-x
cc	750.59 KB	-rwxr-xr-x
ccmake	3.95 MB	-rwxr-xr-x
ccmake3	5.83 MB	-rwxr-xr-x
cd	26 B	-rwxr-xr-x
centrino-decode	6.13 KB	-rwxr-xr-x
certutil	179.75 KB	-rwxr-xr-x
certwatch	15.38 KB	-rwxr-xr-x
chacl	15.27 KB	-rwxr-xr-x
chage	72.16 KB	-rwsr-xr-x
chardetect	307 B	-rwxr-xr-x
chattr	11.27 KB	-rwxr-xr-x
chcat	13.12 KB	-rwxr-xr-x
chcon	61.46 KB	-rwxr-xr-x
checkmodule	400.48 KB	-rwxr-xr-x
checkpolicy	412.46 KB	-rwxr-xr-x
chfn	23.41 KB	-rws--x--x
chgrp	61.32 KB	-rwxr-xr-x
chmem	40.43 KB	-rwxr-xr-x
chmod	57.21 KB	-rwxr-xr-x
chown	61.36 KB	-rwxr-xr-x
chronyc	85.03 KB	-rwxr-xr-x
chrt	32.17 KB	-rwxr-xr-x
chsh	23.32 KB	-rws--x--x
chvt	11.14 KB	-rwxr-xr-x
cifsiostat	48.5 KB	-rwxr-xr-x
cksum	32.38 KB	-rwxr-xr-x
clambc	139.76 KB	-rwxr-xr-x
clamconf	139.43 KB	-rwxr-xr-x
clamdscan	155.77 KB	-rwxr-xr-x
clamdtop	155.74 KB	-rwxr-xr-x
clamscan	163.64 KB	-rwxr-xr-x
clamsubmit	147.73 KB	-rwxr-xr-x
clear	7.02 KB	-rwxr-xr-x
clusterdb	53.22 KB	-rwxr-xr-x
cmake	3.9 MB	-rwxr-xr-x
cmake3	6.21 MB	-rwxr-xr-x
cmp	44.14 KB	-rwxr-xr-x
cmsutil	110.59 KB	-rwxr-xr-x
col	23.88 KB	-rwxr-xr-x
colcrt	11.29 KB	-rwxr-xr-x
colrm	23.77 KB	-rwxr-xr-x
column	27.99 KB	-rwxr-xr-x
comm	36.55 KB	-rwxr-xr-x
command	31 B	-rwxr-xr-x
compare	11.09 KB	-rwxr-xr-x
compile_et	1.45 KB	-rwxr-xr-x
composite	7.04 KB	-rwxr-xr-x
conjure	7.04 KB	-rwxr-xr-x
consolehelper	6.95 KB	-rwxr-xr-x
convert	7.04 KB	-rwxr-xr-x
coredumpctl	154.52 KB	-rwxr-xr-x
cp	151.55 KB	-rwxr-xr-x
cpack	4.16 MB	-rwxr-xr-x
cpack3	6.31 MB	-rwxr-xr-x
cpio	142.55 KB	-rwxr-xr-x
cpp	754.58 KB	-rwxr-xr-x
cpulimit	23.78 KB	-rwxr-xr-x
cpupower	66.34 KB	-rwxr-xr-x
crc32	794 B	-rwxr-xr-x
createdb	53.27 KB	-rwxr-xr-x
createlang	57.09 KB	-rwxr-xr-x
createuser	57.63 KB	-rwxr-xr-x
crlutil	127 KB	-rwxr-xr-x
crontab	56.23 KB	-rwsr-xr-x
csplit	48.82 KB	-rwxr-xr-x
csslint-0.6	19.55 KB	-rwxr-xr-x
ctest	4.96 MB	-rwxr-xr-x
ctest3	7.14 MB	-rwxr-xr-x
curl	152.99 KB	-rwxr-xr-x
curl-config	4.08 KB	-rwxr-xr-x
cut	40.61 KB	-rwxr-xr-x
cvtsudoers	241.7 KB	-rwxr-xr-x
cxpm	28.05 KB	-rwxr-xr-x
date	60.74 KB	-rwxr-xr-x
db_archive	11.23 KB	-rwxr-xr-x
db_checkpoint	11.3 KB	-rwxr-xr-x
db_deadlock	11.31 KB	-rwxr-xr-x
db_dump	15.33 KB	-rwxr-xr-x
db_dump185	64.45 KB	-rwxr-xr-x
db_hotbackup	15.34 KB	-rwxr-xr-x
db_load	27.51 KB	-rwxr-xr-x
db_log_verify	15.34 KB	-rwxr-xr-x
db_printlog	32.26 KB	-rwxr-xr-x
db_recover	11.33 KB	-rwxr-xr-x
db_replicate	15.34 KB	-rwxr-xr-x
db_stat	15.26 KB	-rwxr-xr-x
db_tuner	19.33 KB	-rwxr-xr-x
db_upgrade	11.23 KB	-rwxr-xr-x
db_verify	11.25 KB	-rwxr-xr-x
dbilogstrip	1.43 KB	-rwxr-xr-x
dbinfo	3.29 KB	-rwxr-xr-x
dbiprof	6.15 KB	-rwxr-xr-x
dbiproxy	5.35 KB	-rwxr-xr-x
dbus-binding-tool	94.49 KB	-rwxr-xr-x
dbus-cleanup-sockets	11 KB	-rwxr-xr-x
dbus-daemon	218 KB	-rwxr-xr-x
dbus-monitor	23.13 KB	-rwxr-xr-x
dbus-run-session	14.97 KB	-rwxr-xr-x
dbus-send	27.07 KB	-rwxr-xr-x
dbus-test-tool	23.13 KB	-rwxr-xr-x
dbus-update-activation-environ...	15.02 KB	-rwxr-xr-x
dbus-uuidgen	10.98 KB	-rwxr-xr-x
dc	44.33 KB	-rwxr-xr-x
dd	73.14 KB	-rwxr-xr-x
deallocvt	11.16 KB	-rwxr-xr-x
debuginfo-install	7.88 KB	-rwxr-xr-x
delv	39.98 KB	-rwxr-xr-x
derb	19.95 KB	-rwxr-xr-x
df	102.55 KB	-rwxr-xr-x
dgawk	502.12 KB	-rwxr-xr-x
diff	195.46 KB	-rwxr-xr-x
diff3	60.65 KB	-rwxr-xr-x
dig	146.96 KB	-rwxr-xr-x
dir	114.85 KB	-rwxr-xr-x
dircolors	40.44 KB	-rwxr-xr-x
dirname	28.31 KB	-rwxr-xr-x
display	7.04 KB	-rwxr-xr-x
dm_date	5.47 KB	-rwxr-xr-x
dm_zdump	4.95 KB	-rwxr-xr-x
dmesg	48.52 KB	-rwxr-xr-x
dnsdomainname	15.41 KB	-rwxr-xr-x
domainname	15.41 KB	-rwxr-xr-x
doveadm	596.59 KB	-rwxr-xr-x
doveconf	161.41 KB	-rwxr-xr-x
dracut	55.83 KB	-rwxr-xr-x
dropdb	53.08 KB	-rwxr-xr-x
droplang	57.08 KB	-rwxr-xr-x
dropuser	53.05 KB	-rwxr-xr-x
dsync	596.59 KB	-rwxr-xr-x
dtrace	16.66 KB	-rwxr-xr-x
du	110.34 KB	-rwxr-xr-x
dumpkeys	77.51 KB	-rwxr-xr-x
dumpsexp	15.18 KB	-rwxr-xr-x
dwp	3.03 MB	-rwxr-xr-x
easy_install-3.6	234 B	-rwxr-xr-x
echo	32.31 KB	-rwxr-xr-x
ecpg	737.83 KB	-rwxr-xr-x
ed2k-link	71.57 KB	-rwxr-xr-x
egrep	290 B	-rwxr-xr-x
eject	48.81 KB	-rwxr-xr-x
elfedit	32.18 KB	-rwxr-xr-x
enchant	15.29 KB	-rwxr-xr-x
enchant-lsmod	11.13 KB	-rwxr-xr-x
env	28.33 KB	-rwxr-xr-x
envsubst	36.01 KB	-rwxr-xr-x
eqn	144.41 KB	-rwxr-xr-x
ex	906.45 KB	-rwxr-xr-x
expand	32.48 KB	-rwxr-xr-x
expr	36.53 KB	-rwxr-xr-x
factor	93.29 KB	-rwxr-xr-x
fallocate	27.84 KB	-rwxr-xr-x
false	28.25 KB	-rwxr-xr-x
fc	26 B	-rwxr-xr-x
fc-cache	132 B	-rwxr-xr-x
fc-cache-64	15.45 KB	-rwxr-xr-x
fc-cat	15.4 KB	-rwxr-xr-x
fc-conflist	11.2 KB	-rwxr-xr-x
fc-list	11.26 KB	-rwxr-xr-x
fc-match	11.32 KB	-rwxr-xr-x
fc-pattern	11.26 KB	-rwxr-xr-x
fc-query	11.23 KB	-rwxr-xr-x
fc-scan	11.27 KB	-rwxr-xr-x
fc-validate	11.27 KB	-rwxr-xr-x
fcat	23.82 KB	-rwxr-xr-x
fg	26 B	-rwxr-xr-x
fgconsole	11.16 KB	-rwxr-xr-x
fgrep	290 B	-rwxr-xr-x
filan	89.13 KB	-rwxr-xr-x
file	19.3 KB	-rwxr-xr-x
find	194.63 KB	-rwxr-xr-x
find-repos-of-install	4.27 KB	-rwxr-xr-x
find2perl	23.06 KB	-rwxr-xr-x
findmnt	58.38 KB	-rwxr-xr-x
fipscheck	15.37 KB	-rwxr-xr-x
fipshmac	11.3 KB	-rwxr-xr-x
firewall-cmd	113.48 KB	-rwxr-xr-x
firewall-offline-cmd	101.18 KB	-rwxr-xr-x
flex	318.07 KB	-rwxr-xr-x
flex++	318.07 KB	-rwxr-xr-x
flock	23.88 KB	-rwxr-xr-x
fmt	36.48 KB	-rwxr-xr-x
fold	36.46 KB	-rwxr-xr-x
fonttosfnt	35.99 KB	-rwxr-xr-x
formail	43.68 KB	-rwxr-xr-x
free	19.33 KB	-rwxr-xr-x
freetype-config	4.39 KB	-rwxr-xr-x
freeze	23.82 KB	-rwxr-xr-x
freshclam	39.23 KB	-rwxr-xr-x
fribidi	16.09 KB	-rwxr-xr-x
funzip	31.38 KB	-rwxr-xr-x
g++	754.59 KB	-rwxr-xr-x
galera_new_cluster	917 B	-rwxr-xr-x
galera_recovery	3.28 KB	-rwxr-xr-x
gapplication	19.48 KB	-rwxr-xr-x
garb-systemd	1.2 KB	-rwxr-xr-x
garbd	2.2 MB	-rwxr-xr-x
gawk	418.54 KB	-rwxr-xr-x
gcc	750.59 KB	-rwxr-xr-x
gcc-ar	26.45 KB	-rwxr-xr-x
gcc-nm	26.45 KB	-rwxr-xr-x
gcc-ranlib	26.45 KB	-rwxr-xr-x
gcov	307.45 KB	-rwxr-xr-x
gdbus	40.17 KB	-rwxr-xr-x
gdbus-codegen	2 KB	-rwxr-xr-x
gdk-pixbuf-query-loaders-64	15.38 KB	-rwxr-xr-x
gdk-pixbuf-thumbnailer	15.59 KB	-rwxr-xr-x
genbrk	15.75 KB	-rwxr-xr-x
gencat	22.11 KB	-rwxr-xr-x
gencfu	11.64 KB	-rwxr-xr-x
gencnval	19.71 KB	-rwxr-xr-x
gendict	24.01 KB	-rwxr-xr-x
genkey	43.13 KB	-rwxr-xr-x
genl-ctrl-list	11.27 KB	-rwxr-xr-x
genrb	95.2 KB	-rwxr-xr-x
geoiplookup	15.28 KB	-rwxr-xr-x
geoiplookup6	11.16 KB	-rwxr-xr-x
geoipupdate	31.28 KB	-rwxr-xr-x
geqn	144.41 KB	-rwxr-xr-x
getconf	22.02 KB	-rwxr-xr-x
getent	26.39 KB	-rwxr-xr-x
getfacl	24.29 KB	-rwxr-xr-x
getkeycodes	11.16 KB	-rwxr-xr-x
getopt	15.38 KB	-rwxr-xr-x
getopts	31 B	-rwxr-xr-x
gettext	35.94 KB	-rwxr-xr-x
gettext.sh	4.52 KB	-rwxr-xr-x
gio	73.41 KB	-rwxr-xr-x
gio-querymodules-64	11.31 KB	-rwxr-xr-x
git	1.46 MB	-rwxr-xr-x
git-receive-pack	1.46 MB	-rwxr-xr-x
git-shell	717.98 KB	-rwxr-xr-x
git-upload-archive	1.46 MB	-rwxr-xr-x
git-upload-pack	791.45 KB	-rwxr-xr-x
glib-compile-resources	40.25 KB	-rwxr-xr-x
glib-compile-schemas	44.38 KB	-rwxr-xr-x
glib-genmarshal	39.97 KB	-rwxr-xr-x
glib-gettextize	5.25 KB	-rwxr-xr-x
glib-mkenums	27.15 KB	-rwxr-xr-x
gmake	178.47 KB	-rwxr-xr-x
gneqn	271 B	-rwxr-xr-x
gnroff	3.31 KB	-rwxr-xr-x
goaccess	610.99 KB	-rwxr-xr-x
gobject-query	11.13 KB	-rwxr-xr-x
gost-hash	71.57 KB	-rwxr-xr-x
gpasswd	76.57 KB	-rwsr-xr-x
gpg	732.4 KB	-rwxr-xr-x
gpg-agent	289.74 KB	-rwxr-xr-x
gpg-connect-agent	152.69 KB	-rwxr-xr-x
gpg-error	23.18 KB	-rwxr-xr-x
gpg-error-config	1.83 KB	-rwxr-xr-x
gpg-zip	3.23 KB	-rwxr-xr-x
gpg2	732.4 KB	-rwxr-xr-x
gpgconf	140.31 KB	-rwxr-xr-x
gpgparsemail	23.7 KB	-rwxr-xr-x
gpgsplit	48.88 KB	-rwxr-xr-x
gpgv	345.38 KB	-rwxr-xr-x
gpgv2	345.38 KB	-rwxr-xr-x
gpic	180.41 KB	-rwxr-xr-x
gprof	98.41 KB	-rwxr-xr-x
gr2fonttest	23.66 KB	-rwxr-xr-x
grep	155.3 KB	-rwxr-xr-x
gresource	19.55 KB	-rwxr-xr-x
groff	81.63 KB	-rwxr-xr-x
grops	140.85 KB	-rwxr-xr-x
grotty	98.59 KB	-rwxr-xr-x
groups	32.41 KB	-rwxr-xr-x
grub2-editenv	396.07 KB	-rwxr-xr-x
grub2-file	830.36 KB	-rwxr-xr-x
grub2-fstest	1.03 MB	-rwxr-xr-x
grub2-glue-efi	258.85 KB	-rwxr-xr-x
grub2-kbdcomp	1.63 KB	-rwxr-xr-x
grub2-menulst2cfg	241.82 KB	-rwxr-xr-x
grub2-mkfont	287.6 KB	-rwxr-xr-x
grub2-mkimage	379.25 KB	-rwxr-xr-x
grub2-mklayout	264.91 KB	-rwxr-xr-x
grub2-mknetdir	429.8 KB	-rwxr-xr-x
grub2-mkpasswd-pbkdf2	271.29 KB	-rwxr-xr-x
grub2-mkrelpath	258.48 KB	-rwxr-xr-x
grub2-mkrescue	1017.84 KB	-rwxr-xr-x
grub2-mkstandalone	534.32 KB	-rwxr-xr-x
grub2-render-label	835.16 KB	-rwxr-xr-x
grub2-script-check	295.43 KB	-rwxr-xr-x
grub2-syslinux2cfg	763.7 KB	-rwxr-xr-x
gsettings	23.8 KB	-rwxr-xr-x
gsoelim	32.59 KB	-rwxr-xr-x
gss-client	23.17 KB	-rwxr-xr-x
gtar	338.02 KB	-rwxr-xr-x
gtbl	115.96 KB	-rwxr-xr-x
gtester	23.64 KB	-rwxr-xr-x
gtester-report	18.39 KB	-rwxr-xr-x
gtroff	512.96 KB	-rwxr-xr-x
gunzip	2.2 KB	-rwxr-xr-x
gzexe	5.79 KB	-rwxr-xr-x
gzip	98.43 KB	-rwxr-xr-x
h2ph	27.65 KB	-rwxr-xr-x
h2xs	59.15 KB	-rwxr-xr-x
has160-hash	71.57 KB	-rwxr-xr-x
hdsploader	11.18 KB	-rwxr-xr-x
head	40.51 KB	-rwxr-xr-x
hexdump	32.02 KB	-rwxr-xr-x
hmac256	15.67 KB	-rwxr-xr-x
host	127.02 KB	-rwxr-xr-x
hostid	28.32 KB	-rwxr-xr-x
hostname	15.41 KB	-rwxr-xr-x
hostnamectl	318.07 KB	-rwxr-xr-x
hunspell	53.11 KB	-rwxr-xr-x
i386	15.27 KB	-rwxr-xr-x
iceauth	31.73 KB	-rwxr-xr-x
iconv	58.14 KB	-rwxr-xr-x
icu-config	172 B	-rwxr-xr-x
icu-config-64	21.49 KB	-rwxr-xr-x
icuinfo	15.6 KB	-rwxr-xr-x
id	36.52 KB	-rwxr-xr-x
identify	7.06 KB	-rwxr-xr-x
idiag-socket-details	11.34 KB	-rwxr-xr-x
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Code Editor : pt-fk-error-logger

#!/usr/bin/env perl

# This program is part of Percona Toolkit: http://www.percona.com/software/
# See "COPYRIGHT, LICENSE, AND WARRANTY" at the end of this file for legal
# notices and disclaimers.

use strict;
use warnings FATAL => 'all';

# This tool is "fat-packed": most of its dependent modules are embedded
# in this file.  Setting %INC to this file for each module makes Perl aware
# of this so it will not try to load the module from @INC.  See the tool's
# documentation for a full list of dependencies.
BEGIN {
   $INC{$_} = __FILE__ for map { (my $pkg = "$_.pm") =~ s!::!/!g; $pkg } (qw(
      Percona::Toolkit
      OptionParser
      Quoter
      DSNParser
      Cxn
      Daemon
      Transformers
      HTTP::Micro
      VersionCheck
      Runtime
   ));
}

# ###########################################################################
# Percona::Toolkit package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/Percona/Toolkit.pm
#   t/lib/Percona/Toolkit.t
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################
{
package Percona::Toolkit;

our $VERSION = '2.2.15';

use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;

use Carp qw(carp cluck);
use Data::Dumper qw();

require Exporter;
our @ISA         = qw(Exporter);
our @EXPORT_OK   = qw(
   have_required_args
   Dumper
   _d
);

sub have_required_args {
   my ($args, @required_args) = @_;
   my $have_required_args = 1;
   foreach my $arg ( @required_args ) {
      if ( !defined $args->{$arg} ) {
         $have_required_args = 0;
         carp "Argument $arg is not defined";
      }
   }
   cluck unless $have_required_args;  # print backtrace
   return $have_required_args;
}

sub Dumper {
   local $Data::Dumper::Indent    = 1;
   local $Data::Dumper::Sortkeys  = 1;
   local $Data::Dumper::Quotekeys = 0;
   Data::Dumper::Dumper(@_);
}

sub _d {
   my ($package, undef, $line) = caller 0;
   @_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
        map { defined $_ ? $_ : 'undef' }
        @_;
   print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
}

1;
}
# ###########################################################################
# End Percona::Toolkit package
# ###########################################################################

# ###########################################################################
# OptionParser package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/OptionParser.pm
#   t/lib/OptionParser.t
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################
{
package OptionParser;

use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;

use List::Util qw(max);
use Getopt::Long;
use Data::Dumper;

my $POD_link_re = '[LC]<"?([^">]+)"?>';

sub new {
   my ( $class, %args ) = @_;
   my @required_args = qw();
   foreach my $arg ( @required_args ) {
      die "I need a $arg argument" unless $args{$arg};
   }

my ($program_name) = $PROGRAM_NAME =~ m/([.A-Za-z-]+)$/;
   $program_name ||= $PROGRAM_NAME;
   my $home = $ENV{HOME} || $ENV{HOMEPATH} || $ENV{USERPROFILE} || '.';

my %attributes = (
      'type'       => 1,
      'short form' => 1,
      'group'      => 1,
      'default'    => 1,
      'cumulative' => 1,
      'negatable'  => 1,
   );

my $self = {
      head1             => 'OPTIONS',        # These args are used internally
      skip_rules        => 0,                # to instantiate another Option-
      item              => '--(.*)',         # Parser obj that parses the
      attributes        => \%attributes,     # DSN OPTIONS section.  Tools
      parse_attributes  => \&_parse_attribs, # don't tinker with these args.

%args,

strict            => 1,  # disabled by a special rule
      program_name      => $program_name,
      opts              => {},
      got_opts          => 0,
      short_opts        => {},
      defaults          => {},
      groups            => {},
      allowed_groups    => {},
      errors            => [],
      rules             => [],  # desc of rules for --help
      mutex             => [],  # rule: opts are mutually exclusive
      atleast1          => [],  # rule: at least one opt is required
      disables          => {},  # rule: opt disables other opts 
      defaults_to       => {},  # rule: opt defaults to value of other opt
      DSNParser         => undef,
      default_files     => [
         "/etc/percona-toolkit/percona-toolkit.conf",
         "/etc/percona-toolkit/$program_name.conf",
         "$home/.percona-toolkit.conf",
         "$home/.$program_name.conf",
      ],
      types             => {
         string => 's', # standard Getopt type
         int    => 'i', # standard Getopt type
         float  => 'f', # standard Getopt type
         Hash   => 'H', # hash, formed from a comma-separated list
         hash   => 'h', # hash as above, but only if a value is given
         Array  => 'A', # array, similar to Hash
         array  => 'a', # array, similar to hash
         DSN    => 'd', # DSN
         size   => 'z', # size with kMG suffix (powers of 2^10)
         time   => 'm', # time, with an optional suffix of s/h/m/d
      },
   };

return bless $self, $class;
}

sub get_specs {
   my ( $self, $file ) = @_;
   $file ||= $self->{file} || __FILE__;
   my @specs = $self->_pod_to_specs($file);
   $self->_parse_specs(@specs);

open my $fh, "<", $file or die "Cannot open $file: $OS_ERROR";
   my $contents = do { local $/ = undef; <$fh> };
   close $fh;
   if ( $contents =~ m/^=head1 DSN OPTIONS/m ) {
      PTDEBUG && _d('Parsing DSN OPTIONS');
      my $dsn_attribs = {
         dsn  => 1,
         copy => 1,
      };
      my $parse_dsn_attribs = sub {
         my ( $self, $option, $attribs ) = @_;
         map {
            my $val = $attribs->{$_};
            if ( $val ) {
               $val    = $val eq 'yes' ? 1
                       : $val eq 'no'  ? 0
                       :                 $val;
               $attribs->{$_} = $val;
            }
         } keys %$attribs;
         return {
            key => $option,
            %$attribs,
         };
      };
      my $dsn_o = new OptionParser(
         description       => 'DSN OPTIONS',
         head1             => 'DSN OPTIONS',
         dsn               => 0,         # XXX don't infinitely recurse!
         item              => '\* (.)',  # key opts are a single character
         skip_rules        => 1,         # no rules before opts
         attributes        => $dsn_attribs,
         parse_attributes  => $parse_dsn_attribs,
      );
      my @dsn_opts = map {
         my $opts = {
            key  => $_->{spec}->{key},
            dsn  => $_->{spec}->{dsn},
            copy => $_->{spec}->{copy},
            desc => $_->{desc},
         };
         $opts;
      } $dsn_o->_pod_to_specs($file);
      $self->{DSNParser} = DSNParser->new(opts => \@dsn_opts);
   }

if ( $contents =~ m/^=head1 VERSION\n\n^(.+)$/m ) {
      $self->{version} = $1;
      PTDEBUG && _d($self->{version});
   }

return;
}

sub DSNParser {
   my ( $self ) = @_;
   return $self->{DSNParser};
};

sub get_defaults_files {
   my ( $self ) = @_;
   return @{$self->{default_files}};
}

sub _pod_to_specs {
   my ( $self, $file ) = @_;
   $file ||= $self->{file} || __FILE__;
   open my $fh, '<', $file or die "Cannot open $file: $OS_ERROR";

my @specs = ();
   my @rules = ();
   my $para;

local $INPUT_RECORD_SEPARATOR = '';
   while ( $para = <$fh> ) {
      next unless $para =~ m/^=head1 $self->{head1}/;
      last;
   }

while ( $para = <$fh> ) {
      last if $para =~ m/^=over/;
      next if $self->{skip_rules};
      chomp $para;
      $para =~ s/\s+/ /g;
      $para =~ s/$POD_link_re/$1/go;
      PTDEBUG && _d('Option rule:', $para);
      push @rules, $para;
   }

die "POD has no $self->{head1} section" unless $para;

do {
      if ( my ($option) = $para =~ m/^=item $self->{item}/ ) {
         chomp $para;
         PTDEBUG && _d($para);
         my %attribs;

$para = <$fh>; # read next paragraph, possibly attributes

if ( $para =~ m/: / ) { # attributes
            $para =~ s/\s+\Z//g;
            %attribs = map {
                  my ( $attrib, $val) = split(/: /, $_);
                  die "Unrecognized attribute for --$option: $attrib"
                     unless $self->{attributes}->{$attrib};
                  ($attrib, $val);
               } split(/; /, $para);
            if ( $attribs{'short form'} ) {
               $attribs{'short form'} =~ s/-//;
            }
            $para = <$fh>; # read next paragraph, probably short help desc
         }
         else {
            PTDEBUG && _d('Option has no attributes');
         }

$para =~ s/\s+\Z//g;
         $para =~ s/\s+/ /g;
         $para =~ s/$POD_link_re/$1/go;

$para =~ s/\.(?:\n.*| [A-Z].*|\Z)//s;
         PTDEBUG && _d('Short help:', $para);

die "No description after option spec $option" if $para =~ m/^=item/;

if ( my ($base_option) =  $option =~ m/^\[no\](.*)/ ) {
            $option = $base_option;
            $attribs{'negatable'} = 1;
         }

push @specs, {
            spec  => $self->{parse_attributes}->($self, $option, \%attribs), 
            desc  => $para
               . (defined $attribs{default} ? " (default $attribs{default})" : ''),
            group => ($attribs{'group'} ? $attribs{'group'} : 'default'),
         };
      }
      while ( $para = <$fh> ) {
         last unless $para;
         if ( $para =~ m/^=head1/ ) {
            $para = undef; # Can't 'last' out of a do {} block.
            last;
         }
         last if $para =~ m/^=item /;
      }
   } while ( $para );

die "No valid specs in $self->{head1}" unless @specs;

close $fh;
   return @specs, @rules;
}

sub _parse_specs {
   my ( $self, @specs ) = @_;
   my %disables; # special rule that requires deferred checking

foreach my $opt ( @specs ) {
      if ( ref $opt ) { # It's an option spec, not a rule.
         PTDEBUG && _d('Parsing opt spec:',
            map { ($_, '=>', $opt->{$_}) } keys %$opt);

my ( $long, $short ) = $opt->{spec} =~ m/^([\w-]+)(?:\|([^!+=]*))?/;
         if ( !$long ) {
            die "Cannot parse long option from spec $opt->{spec}";
         }
         $opt->{long} = $long;

die "Duplicate long option --$long" if exists $self->{opts}->{$long};
         $self->{opts}->{$long} = $opt;

if ( length $long == 1 ) {
            PTDEBUG && _d('Long opt', $long, 'looks like short opt');
            $self->{short_opts}->{$long} = $long;
         }

if ( $short ) {
            die "Duplicate short option -$short"
               if exists $self->{short_opts}->{$short};
            $self->{short_opts}->{$short} = $long;
            $opt->{short} = $short;
         }
         else {
            $opt->{short} = undef;
         }

$opt->{is_negatable}  = $opt->{spec} =~ m/!/        ? 1 : 0;
         $opt->{is_cumulative} = $opt->{spec} =~ m/\+/       ? 1 : 0;
         $opt->{is_required}   = $opt->{desc} =~ m/required/ ? 1 : 0;

$opt->{group} ||= 'default';
         $self->{groups}->{ $opt->{group} }->{$long} = 1;

$opt->{value} = undef;
         $opt->{got}   = 0;

my ( $type ) = $opt->{spec} =~ m/=(.)/;
         $opt->{type} = $type;
         PTDEBUG && _d($long, 'type:', $type);

$opt->{spec} =~ s/=./=s/ if ( $type && $type =~ m/[HhAadzm]/ );

if ( (my ($def) = $opt->{desc} =~ m/default\b(?: ([^)]+))?/) ) {
            $self->{defaults}->{$long} = defined $def ? $def : 1;
            PTDEBUG && _d($long, 'default:', $def);
         }

if ( $long eq 'config' ) {
            $self->{defaults}->{$long} = join(',', $self->get_defaults_files());
         }

if ( (my ($dis) = $opt->{desc} =~ m/(disables .*)/) ) {
            $disables{$long} = $dis;
            PTDEBUG && _d('Deferring check of disables rule for', $opt, $dis);
         }

$self->{opts}->{$long} = $opt;
      }
      else { # It's an option rule, not a spec.
         PTDEBUG && _d('Parsing rule:', $opt); 
         push @{$self->{rules}}, $opt;
         my @participants = $self->_get_participants($opt);
         my $rule_ok = 0;

if ( $opt =~ m/mutually exclusive|one and only one/ ) {
            $rule_ok = 1;
            push @{$self->{mutex}}, \@participants;
            PTDEBUG && _d(@participants, 'are mutually exclusive');
         }
         if ( $opt =~ m/at least one|one and only one/ ) {
            $rule_ok = 1;
            push @{$self->{atleast1}}, \@participants;
            PTDEBUG && _d(@participants, 'require at least one');
         }
         if ( $opt =~ m/default to/ ) {
            $rule_ok = 1;
            $self->{defaults_to}->{$participants[0]} = $participants[1];
            PTDEBUG && _d($participants[0], 'defaults to', $participants[1]);
         }
         if ( $opt =~ m/restricted to option groups/ ) {
            $rule_ok = 1;
            my ($groups) = $opt =~ m/groups ([\w\s\,]+)/;
            my @groups = split(',', $groups);
            %{$self->{allowed_groups}->{$participants[0]}} = map {
               s/\s+//;
               $_ => 1;
            } @groups;
         }
         if( $opt =~ m/accepts additional command-line arguments/ ) {
            $rule_ok = 1;
            $self->{strict} = 0;
            PTDEBUG && _d("Strict mode disabled by rule");
         }

die "Unrecognized option rule: $opt" unless $rule_ok;
      }
   }

foreach my $long ( keys %disables ) {
      my @participants = $self->_get_participants($disables{$long});
      $self->{disables}->{$long} = \@participants;
      PTDEBUG && _d('Option', $long, 'disables', @participants);
   }

return; 
}

sub _get_participants {
   my ( $self, $str ) = @_;
   my @participants;
   foreach my $long ( $str =~ m/--(?:\[no\])?([\w-]+)/g ) {
      die "Option --$long does not exist while processing rule $str"
         unless exists $self->{opts}->{$long};
      push @participants, $long;
   }
   PTDEBUG && _d('Participants for', $str, ':', @participants);
   return @participants;
}

sub opts {
   my ( $self ) = @_;
   my %opts = %{$self->{opts}};
   return %opts;
}

sub short_opts {
   my ( $self ) = @_;
   my %short_opts = %{$self->{short_opts}};
   return %short_opts;
}

sub set_defaults {
   my ( $self, %defaults ) = @_;
   $self->{defaults} = {};
   foreach my $long ( keys %defaults ) {
      die "Cannot set default for nonexistent option $long"
         unless exists $self->{opts}->{$long};
      $self->{defaults}->{$long} = $defaults{$long};
      PTDEBUG && _d('Default val for', $long, ':', $defaults{$long});
   }
   return;
}

sub get_defaults {
   my ( $self ) = @_;
   return $self->{defaults};
}

sub get_groups {
   my ( $self ) = @_;
   return $self->{groups};
}

sub _set_option {
   my ( $self, $opt, $val ) = @_;
   my $long = exists $self->{opts}->{$opt}       ? $opt
            : exists $self->{short_opts}->{$opt} ? $self->{short_opts}->{$opt}
            : die "Getopt::Long gave a nonexistent option: $opt";
   $opt = $self->{opts}->{$long};
   if ( $opt->{is_cumulative} ) {
      $opt->{value}++;
   }
   elsif ( ($opt->{type} || '') eq 's' && $val =~ m/^--?(.+)/ ) {
      my $next_opt = $1;
      if (    exists $self->{opts}->{$next_opt}
           || exists $self->{short_opts}->{$next_opt} ) {
         $self->save_error("--$long requires a string value");
         return;
      }
      else {
         $opt->{value} = $val;
      }
   }
   else {
      $opt->{value} = $val;
   }
   $opt->{got} = 1;
   PTDEBUG && _d('Got option', $long, '=', $val);
}

sub get_opts {
   my ( $self ) = @_;

foreach my $long ( keys %{$self->{opts}} ) {
      $self->{opts}->{$long}->{got} = 0;
      $self->{opts}->{$long}->{value}
         = exists $self->{defaults}->{$long}       ? $self->{defaults}->{$long}
         : $self->{opts}->{$long}->{is_cumulative} ? 0
         : undef;
   }
   $self->{got_opts} = 0;

$self->{errors} = [];

if ( @ARGV && $ARGV[0] eq "--config" ) {
      shift @ARGV;
      $self->_set_option('config', shift @ARGV);
   }
   if ( $self->has('config') ) {
      my @extra_args;
      foreach my $filename ( split(',', $self->get('config')) ) {
         eval {
            push @extra_args, $self->_read_config_file($filename);
         };
         if ( $EVAL_ERROR ) {
            if ( $self->got('config') ) {
               die $EVAL_ERROR;
            }
            elsif ( PTDEBUG ) {
               _d($EVAL_ERROR);
            }
         }
      }
      unshift @ARGV, @extra_args;
   }

Getopt::Long::Configure('no_ignore_case', 'bundling');
   GetOptions(
      map    { $_->{spec} => sub { $self->_set_option(@_); } }
      grep   { $_->{long} ne 'config' } # --config is handled specially above.
      values %{$self->{opts}}
   ) or $self->save_error('Error parsing options');

if ( exists $self->{opts}->{version} && $self->{opts}->{version}->{got} ) {
      if ( $self->{version} ) {
         print $self->{version}, "\n";
      }
      else {
         print "Error parsing version.  See the VERSION section of the tool's documentation.\n";
      }
      exit 1;
   }

if ( @ARGV && $self->{strict} ) {
      $self->save_error("Unrecognized command-line options @ARGV");
   }

foreach my $mutex ( @{$self->{mutex}} ) {
      my @set = grep { $self->{opts}->{$_}->{got} } @$mutex;
      if ( @set > 1 ) {
         my $err = join(', ', map { "--$self->{opts}->{$_}->{long}" }
                      @{$mutex}[ 0 .. scalar(@$mutex) - 2] )
                 . ' and --'.$self->{opts}->{$mutex->[-1]}->{long}
                 . ' are mutually exclusive.';
         $self->save_error($err);
      }
   }

foreach my $required ( @{$self->{atleast1}} ) {
      my @set = grep { $self->{opts}->{$_}->{got} } @$required;
      if ( @set == 0 ) {
         my $err = join(', ', map { "--$self->{opts}->{$_}->{long}" }
                      @{$required}[ 0 .. scalar(@$required) - 2] )
                 .' or --'.$self->{opts}->{$required->[-1]}->{long};
         $self->save_error("Specify at least one of $err");
      }
   }

$self->_check_opts( keys %{$self->{opts}} );
   $self->{got_opts} = 1;
   return;
}

sub _check_opts {
   my ( $self, @long ) = @_;
   my $long_last = scalar @long;
   while ( @long ) {
      foreach my $i ( 0..$#long ) {
         my $long = $long[$i];
         next unless $long;
         my $opt  = $self->{opts}->{$long};
         if ( $opt->{got} ) {
            if ( exists $self->{disables}->{$long} ) {
               my @disable_opts = @{$self->{disables}->{$long}};
               map { $self->{opts}->{$_}->{value} = undef; } @disable_opts;
               PTDEBUG && _d('Unset options', @disable_opts,
                  'because', $long,'disables them');
            }

if ( exists $self->{allowed_groups}->{$long} ) {

my @restricted_groups = grep {
                  !exists $self->{allowed_groups}->{$long}->{$_}
               } keys %{$self->{groups}};

my @restricted_opts;
               foreach my $restricted_group ( @restricted_groups ) {
                  RESTRICTED_OPT:
                  foreach my $restricted_opt (
                     keys %{$self->{groups}->{$restricted_group}} )
                  {
                     next RESTRICTED_OPT if $restricted_opt eq $long;
                     push @restricted_opts, $restricted_opt
                        if $self->{opts}->{$restricted_opt}->{got};
                  }
               }

if ( @restricted_opts ) {
                  my $err;
                  if ( @restricted_opts == 1 ) {
                     $err = "--$restricted_opts[0]";
                  }
                  else {
                     $err = join(', ',
                               map { "--$self->{opts}->{$_}->{long}" }
                               grep { $_ } 
                               @restricted_opts[0..scalar(@restricted_opts) - 2]
                            )
                          . ' or --'.$self->{opts}->{$restricted_opts[-1]}->{long};
                  }
                  $self->save_error("--$long is not allowed with $err");
               }
            }

}
         elsif ( $opt->{is_required} ) { 
            $self->save_error("Required option --$long must be specified");
         }

$self->_validate_type($opt);
         if ( $opt->{parsed} ) {
            delete $long[$i];
         }
         else {
            PTDEBUG && _d('Temporarily failed to parse', $long);
         }
      }

die "Failed to parse options, possibly due to circular dependencies"
         if @long == $long_last;
      $long_last = @long;
   }

return;
}

sub _validate_type {
   my ( $self, $opt ) = @_;
   return unless $opt;

if ( !$opt->{type} ) {
      $opt->{parsed} = 1;
      return;
   }

my $val = $opt->{value};

if ( $val && $opt->{type} eq 'm' ) {  # type time
      PTDEBUG && _d('Parsing option', $opt->{long}, 'as a time value');
      my ( $prefix, $num, $suffix ) = $val =~ m/([+-]?)(\d+)([a-z])?$/;
      if ( !$suffix ) {
         my ( $s ) = $opt->{desc} =~ m/$suffix (.)$/;
         $suffix = $s || 's';
         PTDEBUG && _d('No suffix given; using', $suffix, 'for',
            $opt->{long}, '(value:', $val, ')');
      }
      if ( $suffix =~ m/[smhd]/ ) {
         $val = $suffix eq 's' ? $num            # Seconds
              : $suffix eq 'm' ? $num * 60       # Minutes
              : $suffix eq 'h' ? $num * 3600     # Hours
              :                  $num * 86400;   # Days
         $opt->{value} = ($prefix || '') . $val;
         PTDEBUG && _d('Setting option', $opt->{long}, 'to', $val);
      }
      else {
         $self->save_error("Invalid time suffix for --$opt->{long}");
      }
   }
   elsif ( $val && $opt->{type} eq 'd' ) {  # type DSN
      PTDEBUG && _d('Parsing option', $opt->{long}, 'as a DSN');
      my $prev = {};
      my $from_key = $self->{defaults_to}->{ $opt->{long} };
      if ( $from_key ) {
         PTDEBUG && _d($opt->{long}, 'DSN copies from', $from_key, 'DSN');
         if ( $self->{opts}->{$from_key}->{parsed} ) {
            $prev = $self->{opts}->{$from_key}->{value};
         }
         else {
            PTDEBUG && _d('Cannot parse', $opt->{long}, 'until',
               $from_key, 'parsed');
            return;
         }
      }
      my $defaults = $self->{DSNParser}->parse_options($self);
      $opt->{value} = $self->{DSNParser}->parse($val, $prev, $defaults);
   }
   elsif ( $val && $opt->{type} eq 'z' ) {  # type size
      PTDEBUG && _d('Parsing option', $opt->{long}, 'as a size value');
      $self->_parse_size($opt, $val);
   }
   elsif ( $opt->{type} eq 'H' || (defined $val && $opt->{type} eq 'h') ) {
      $opt->{value} = { map { $_ => 1 } split(/(?<!\\),\s*/, ($val || '')) };
   }
   elsif ( $opt->{type} eq 'A' || (defined $val && $opt->{type} eq 'a') ) {
      $opt->{value} = [ split(/(?<!\\),\s*/, ($val || '')) ];
   }
   else {
      PTDEBUG && _d('Nothing to validate for option',
         $opt->{long}, 'type', $opt->{type}, 'value', $val);
   }

$opt->{parsed} = 1;
   return;
}

sub get {
   my ( $self, $opt ) = @_;
   my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
   die "Option $opt does not exist"
      unless $long && exists $self->{opts}->{$long};
   return $self->{opts}->{$long}->{value};
}

sub got {
   my ( $self, $opt ) = @_;
   my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
   die "Option $opt does not exist"
      unless $long && exists $self->{opts}->{$long};
   return $self->{opts}->{$long}->{got};
}

sub has {
   my ( $self, $opt ) = @_;
   my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
   return defined $long ? exists $self->{opts}->{$long} : 0;
}

sub set {
   my ( $self, $opt, $val ) = @_;
   my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
   die "Option $opt does not exist"
      unless $long && exists $self->{opts}->{$long};
   $self->{opts}->{$long}->{value} = $val;
   return;
}

sub save_error {
   my ( $self, $error ) = @_;
   push @{$self->{errors}}, $error;
   return;
}

sub errors {
   my ( $self ) = @_;
   return $self->{errors};
}

sub usage {
   my ( $self ) = @_;
   warn "No usage string is set" unless $self->{usage}; # XXX
   return "Usage: " . ($self->{usage} || '') . "\n";
}

sub descr {
   my ( $self ) = @_;
   warn "No description string is set" unless $self->{description}; # XXX
   my $descr  = ($self->{description} || $self->{program_name} || '')
              . "  For more details, please use the --help option, "
              . "or try 'perldoc $PROGRAM_NAME' "
              . "for complete documentation.";
   $descr = join("\n", $descr =~ m/(.{0,80})(?:\s+|$)/g)
      unless $ENV{DONT_BREAK_LINES};
   $descr =~ s/ +$//mg;
   return $descr;
}

sub usage_or_errors {
   my ( $self, $file, $return ) = @_;
   $file ||= $self->{file} || __FILE__;

if ( !$self->{description} || !$self->{usage} ) {
      PTDEBUG && _d("Getting description and usage from SYNOPSIS in", $file);
      my %synop = $self->_parse_synopsis($file);
      $self->{description} ||= $synop{description};
      $self->{usage}       ||= $synop{usage};
      PTDEBUG && _d("Description:", $self->{description},
         "\nUsage:", $self->{usage});
   }

if ( $self->{opts}->{help}->{got} ) {
      print $self->print_usage() or die "Cannot print usage: $OS_ERROR";
      exit 0 unless $return;
   }
   elsif ( scalar @{$self->{errors}} ) {
      print $self->print_errors() or die "Cannot print errors: $OS_ERROR";
      exit 1 unless $return;
   }

return;
}

sub print_errors {
   my ( $self ) = @_;
   my $usage = $self->usage() . "\n";
   if ( (my @errors = @{$self->{errors}}) ) {
      $usage .= join("\n  * ", 'Errors in command-line arguments:', @errors)
              . "\n";
   }
   return $usage . "\n" . $self->descr();
}

sub print_usage {
   my ( $self ) = @_;
   die "Run get_opts() before print_usage()" unless $self->{got_opts};
   my @opts = values %{$self->{opts}};

my $maxl = max(
      map {
         length($_->{long})               # option long name
         + ($_->{is_negatable} ? 4 : 0)   # "[no]" if opt is negatable
         + ($_->{type} ? 2 : 0)           # "=x" where x is the opt type
      }
      @opts);

my $maxs = max(0,
      map {
         length($_)
         + ($self->{opts}->{$_}->{is_negatable} ? 4 : 0)
         + ($self->{opts}->{$_}->{type} ? 2 : 0)
      }
      values %{$self->{short_opts}});

my $lcol = max($maxl, ($maxs + 3));
   my $rcol = 80 - $lcol - 6;
   my $rpad = ' ' x ( 80 - $rcol );

$maxs = max($lcol - 3, $maxs);

my $usage = $self->descr() . "\n" . $self->usage();

my @groups = reverse sort grep { $_ ne 'default'; } keys %{$self->{groups}};
   push @groups, 'default';

foreach my $group ( reverse @groups ) {
      $usage .= "\n".($group eq 'default' ? 'Options' : $group).":\n\n";
      foreach my $opt (
         sort { $a->{long} cmp $b->{long} }
         grep { $_->{group} eq $group }
         @opts )
      {
         my $long  = $opt->{is_negatable} ? "[no]$opt->{long}" : $opt->{long};
         my $short = $opt->{short};
         my $desc  = $opt->{desc};

$long .= $opt->{type} ? "=$opt->{type}" : "";

if ( $opt->{type} && $opt->{type} eq 'm' ) {
            my ($s) = $desc =~ m/$suffix (.)$/;
            $s    ||= 's';
            $desc =~ s/\s+$suffix .$//;
            $desc .= ".  Optional suffix s=seconds, m=minutes, h=hours, "
                   . "d=days; if no suffix, $s is used.";
         }
         $desc = join("\n$rpad", grep { $_ } $desc =~ m/(.{0,$rcol}(?!\W))(?:\s+|(?<=\W)|$)/g);
         $desc =~ s/ +$//mg;
         if ( $short ) {
            $usage .= sprintf("  --%-${maxs}s -%s  %s\n", $long, $short, $desc);
         }
         else {
            $usage .= sprintf("  --%-${lcol}s  %s\n", $long, $desc);
         }
      }
   }

$usage .= "\nOption types: s=string, i=integer, f=float, h/H/a/A=comma-separated list, d=DSN, z=size, m=time\n";

if ( (my @rules = @{$self->{rules}}) ) {
      $usage .= "\nRules:\n\n";
      $usage .= join("\n", map { "  $_" } @rules) . "\n";
   }
   if ( $self->{DSNParser} ) {
      $usage .= "\n" . $self->{DSNParser}->usage();
   }
   $usage .= "\nOptions and values after processing arguments:\n\n";
   foreach my $opt ( sort { $a->{long} cmp $b->{long} } @opts ) {
      my $val   = $opt->{value};
      my $type  = $opt->{type} || '';
      my $bool  = $opt->{spec} =~ m/^[\w-]+(?:\|[\w-])?!?$/;
      $val      = $bool              ? ( $val ? 'TRUE' : 'FALSE' )
                : !defined $val      ? '(No value)'
                : $type eq 'd'       ? $self->{DSNParser}->as_string($val)
                : $type =~ m/H|h/    ? join(',', sort keys %$val)
                : $type =~ m/A|a/    ? join(',', @$val)
                :                    $val;
      $usage .= sprintf("  --%-${lcol}s  %s\n", $opt->{long}, $val);
   }
   return $usage;
}

sub prompt_noecho {
   shift @_ if ref $_[0] eq __PACKAGE__;
   my ( $prompt ) = @_;
   local $OUTPUT_AUTOFLUSH = 1;
   print STDERR $prompt
      or die "Cannot print: $OS_ERROR";
   my $response;
   eval {
      require Term::ReadKey;
      Term::ReadKey::ReadMode('noecho');
      chomp($response = <STDIN>);
      Term::ReadKey::ReadMode('normal');
      print "\n"
         or die "Cannot print: $OS_ERROR";
   };
   if ( $EVAL_ERROR ) {
      die "Cannot read response; is Term::ReadKey installed? $EVAL_ERROR";
   }
   return $response;
}

sub _read_config_file {
   my ( $self, $filename ) = @_;
   open my $fh, "<", $filename or die "Cannot open $filename: $OS_ERROR\n";
   my @args;
   my $prefix = '--';
   my $parse  = 1;

LINE:
   while ( my $line = <$fh> ) {
      chomp $line;
      next LINE if $line =~ m/^\s*(?:\#|\;|$)/;
      $line =~ s/\s+#.*$//g;
      $line =~ s/^\s+|\s+$//g;
      if ( $line eq '--' ) {
         $prefix = '';
         $parse  = 0;
         next LINE;
      }
      if ( $parse
         && (my($opt, $arg) = $line =~ m/^\s*([^=\s]+?)(?:\s*=\s*(.*?)\s*)?$/)
      ) {
         push @args, grep { defined $_ } ("$prefix$opt", $arg);
      }
      elsif ( $line =~ m/./ ) {
         push @args, $line;
      }
      else {
         die "Syntax error in file $filename at line $INPUT_LINE_NUMBER";
      }
   }
   close $fh;
   return @args;
}

sub read_para_after {
   my ( $self, $file, $regex ) = @_;
   open my $fh, "<", $file or die "Can't open $file: $OS_ERROR";
   local $INPUT_RECORD_SEPARATOR = '';
   my $para;
   while ( $para = <$fh> ) {
      next unless $para =~ m/^=pod$/m;
      last;
   }
   while ( $para = <$fh> ) {
      next unless $para =~ m/$regex/;
      last;
   }
   $para = <$fh>;
   chomp($para);
   close $fh or die "Can't close $file: $OS_ERROR";
   return $para;
}

sub clone {
   my ( $self ) = @_;

my %clone = map {
      my $hashref  = $self->{$_};
      my $val_copy = {};
      foreach my $key ( keys %$hashref ) {
         my $ref = ref $hashref->{$key};
         $val_copy->{$key} = !$ref           ? $hashref->{$key}
                           : $ref eq 'HASH'  ? { %{$hashref->{$key}} }
                           : $ref eq 'ARRAY' ? [ @{$hashref->{$key}} ]
                           : $hashref->{$key};
      }
      $_ => $val_copy;
   } qw(opts short_opts defaults);

foreach my $scalar ( qw(got_opts) ) {
      $clone{$scalar} = $self->{$scalar};
   }

return bless \%clone;     
}

sub _parse_size {
   my ( $self, $opt, $val ) = @_;

if ( lc($val || '') eq 'null' ) {
      PTDEBUG && _d('NULL size for', $opt->{long});
      $opt->{value} = 'null';
      return;
   }

my %factor_for = (k => 1_024, M => 1_048_576, G => 1_073_741_824);
   my ($pre, $num, $factor) = $val =~ m/^([+-])?(\d+)([kMG])?$/;
   if ( defined $num ) {
      if ( $factor ) {
         $num *= $factor_for{$factor};
         PTDEBUG && _d('Setting option', $opt->{y},
            'to num', $num, '* factor', $factor);
      }
      $opt->{value} = ($pre || '') . $num;
   }
   else {
      $self->save_error("Invalid size for --$opt->{long}: $val");
   }
   return;
}

sub _parse_attribs {
   my ( $self, $option, $attribs ) = @_;
   my $types = $self->{types};
   return $option
      . ($attribs->{'short form'} ? '|' . $attribs->{'short form'}   : '' )
      . ($attribs->{'negatable'}  ? '!'                              : '' )
      . ($attribs->{'cumulative'} ? '+'                              : '' )
      . ($attribs->{'type'}       ? '=' . $types->{$attribs->{type}} : '' );
}

sub _parse_synopsis {
   my ( $self, $file ) = @_;
   $file ||= $self->{file} || __FILE__;
   PTDEBUG && _d("Parsing SYNOPSIS in", $file);

local $INPUT_RECORD_SEPARATOR = '';  # read paragraphs
   open my $fh, "<", $file or die "Cannot open $file: $OS_ERROR";
   my $para;
   1 while defined($para = <$fh>) && $para !~ m/^=head1 SYNOPSIS/;
   die "$file does not contain a SYNOPSIS section" unless $para;
   my @synop;
   for ( 1..2 ) {  # 1 for the usage, 2 for the description
      my $para = <$fh>;
      push @synop, $para;
   }
   close $fh;
   PTDEBUG && _d("Raw SYNOPSIS text:", @synop);
   my ($usage, $desc) = @synop;
   die "The SYNOPSIS section in $file is not formatted properly"
      unless $usage && $desc;

$usage =~ s/^\s*Usage:\s+(.+)/$1/;
   chomp $usage;

$desc =~ s/\n/ /g;
   $desc =~ s/\s{2,}/ /g;
   $desc =~ s/\. ([A-Z][a-z])/.  $1/g;
   $desc =~ s/\s+$//;

return (
      description => $desc,
      usage       => $usage,
   );
};

sub set_vars {
   my ($self, $file) = @_;
   $file ||= $self->{file} || __FILE__;

my %user_vars;
   my $user_vars = $self->has('set-vars') ? $self->get('set-vars') : undef;
   if ( $user_vars ) {
      foreach my $var_val ( @$user_vars ) {
         my ($var, $val) = $var_val =~ m/([^\s=]+)=(\S+)/;
         die "Invalid --set-vars value: $var_val\n" unless $var && defined $val;
         $user_vars{$var} = {
            val     => $val,
            default => 0,
         };
      }
   }

my %default_vars;
   my $default_vars = $self->read_para_after($file, qr/MAGIC_set_vars/);
   if ( $default_vars ) {
      %default_vars = map {
         my $var_val = $_;
         my ($var, $val) = $var_val =~ m/([^\s=]+)=(\S+)/;
         die "Invalid --set-vars value: $var_val\n" unless $var && defined $val;
         $var => {
            val     => $val,
            default => 1,
         };
      } split("\n", $default_vars);
   }

my %vars = (
      %default_vars, # first the tool's defaults
      %user_vars,    # then the user's which overwrite the defaults
   );
   PTDEBUG && _d('--set-vars:', Dumper(\%vars));
   return \%vars;
}

if ( PTDEBUG ) {
   print STDERR '# ', $^X, ' ', $], "\n";
   if ( my $uname = `uname -a` ) {
      $uname =~ s/\s+/ /g;
      print STDERR "# $uname\n";
   }
   print STDERR '# Arguments: ',
      join(' ', map { my $a = "_[$_]_"; $a =~ s/\n/\n# /g; $a; } @ARGV), "\n";
}

1;
}
# ###########################################################################
# End OptionParser package
# ###########################################################################

# ###########################################################################
# Quoter package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/Quoter.pm
#   t/lib/Quoter.t
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################
{
package Quoter;

use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;

use Data::Dumper;
$Data::Dumper::Indent    = 1;
$Data::Dumper::Sortkeys  = 1;
$Data::Dumper::Quotekeys = 0;

sub new {
   my ( $class, %args ) = @_;
   return bless {}, $class;
}

sub quote {
   my ( $self, @vals ) = @_;
   foreach my $val ( @vals ) {
      $val =~ s/`/``/g;
   }
   return join('.', map { '`' . $_ . '`' } @vals);
}

sub quote_val {
   my ( $self, $val, %args ) = @_;

return 'NULL' unless defined $val;          # undef = NULL
   return "''" if $val eq '';                  # blank string = ''
   return $val if $val =~ m/^0x[0-9a-fA-F]+$/  # quote hex data
                  && !$args{is_char};          # unless is_char is true

$val =~ s/(['\\])/\\$1/g;
   return "'$val'";
}

sub split_unquote {
   my ( $self, $db_tbl, $default_db ) = @_;
   my ( $db, $tbl ) = split(/[.]/, $db_tbl);
   if ( !$tbl ) {
      $tbl = $db;
      $db  = $default_db;
   }
   for ($db, $tbl) {
      next unless $_;
      s/\A`//;
      s/`\z//;
      s/``/`/g;
   }
   
   return ($db, $tbl);
}

sub literal_like {
   my ( $self, $like ) = @_;
   return unless $like;
   $like =~ s/([%_])/\\$1/g;
   return "'$like'";
}

sub join_quote {
   my ( $self, $default_db, $db_tbl ) = @_;
   return unless $db_tbl;
   my ($db, $tbl) = split(/[.]/, $db_tbl);
   if ( !$tbl ) {
      $tbl = $db;
      $db  = $default_db;
   }
   $db  = "`$db`"  if $db  && $db  !~ m/^`/;
   $tbl = "`$tbl`" if $tbl && $tbl !~ m/^`/;
   return $db ? "$db.$tbl" : $tbl;
}

sub serialize_list {
   my ( $self, @args ) = @_;
   PTDEBUG && _d('Serializing', Dumper(\@args));
   return unless @args;

my @parts;
   foreach my $arg  ( @args ) {
      if ( defined $arg ) {
         $arg =~ s/,/\\,/g;      # escape commas
         $arg =~ s/\\N/\\\\N/g;  # escape literal \N
         push @parts, $arg;
      }
      else {
         push @parts, '\N';
      }
   }

my $string = join(',', @parts);
   PTDEBUG && _d('Serialized: <', $string, '>');
   return $string;
}

sub deserialize_list {
   my ( $self, $string ) = @_;
   PTDEBUG && _d('Deserializing <', $string, '>');
   die "Cannot deserialize an undefined string" unless defined $string;

my @parts;
   foreach my $arg ( split(/(?<!\\),/, $string) ) {
      if ( $arg eq '\N' ) {
         $arg = undef;
      }
      else {
         $arg =~ s/\\,/,/g;
         $arg =~ s/\\\\N/\\N/g;
      }
      push @parts, $arg;
   }

if ( !@parts ) {
      my $n_empty_strings = $string =~ tr/,//;
      $n_empty_strings++;
      PTDEBUG && _d($n_empty_strings, 'empty strings');
      map { push @parts, '' } 1..$n_empty_strings;
   }
   elsif ( $string =~ m/(?<!\\),$/ ) {
      PTDEBUG && _d('Last value is an empty string');
      push @parts, '';
   }

PTDEBUG && _d('Deserialized', Dumper(\@parts));
   return @parts;
}

1;
}
# ###########################################################################
# End Quoter package
# ###########################################################################

# ###########################################################################
# DSNParser package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/DSNParser.pm
#   t/lib/DSNParser.t
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################
{
package DSNParser;

use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;

use Data::Dumper;
$Data::Dumper::Indent    = 0;
$Data::Dumper::Quotekeys = 0;

my $dsn_sep = qr/(?<!\\),/;

eval {
   require DBI;
};
my $have_dbi = $EVAL_ERROR ? 0 : 1;

sub new {
   my ( $class, %args ) = @_;
   foreach my $arg ( qw(opts) ) {
      die "I need a $arg argument" unless $args{$arg};
   }
   my $self = {
      opts => {}  # h, P, u, etc.  Should come from DSN OPTIONS section in POD.
   };
   foreach my $opt ( @{$args{opts}} ) {
      if ( !$opt->{key} || !$opt->{desc} ) {
         die "Invalid DSN option: ", Dumper($opt);
      }
      PTDEBUG && _d('DSN option:',
         join(', ',
            map { "$_=" . (defined $opt->{$_} ? ($opt->{$_} || '') : 'undef') }
               keys %$opt
         )
      );
      $self->{opts}->{$opt->{key}} = {
         dsn  => $opt->{dsn},
         desc => $opt->{desc},
         copy => $opt->{copy} || 0,
      };
   }
   return bless $self, $class;
}

sub prop {
   my ( $self, $prop, $value ) = @_;
   if ( @_ > 2 ) {
      PTDEBUG && _d('Setting', $prop, 'property');
      $self->{$prop} = $value;
   }
   return $self->{$prop};
}

sub parse {
   my ( $self, $dsn, $prev, $defaults ) = @_;
   if ( !$dsn ) {
      PTDEBUG && _d('No DSN to parse');
      return;
   }
   PTDEBUG && _d('Parsing', $dsn);
   $prev     ||= {};
   $defaults ||= {};
   my %given_props;
   my %final_props;
   my $opts = $self->{opts};

foreach my $dsn_part ( split($dsn_sep, $dsn) ) {
      $dsn_part =~ s/\\,/,/g;
      if ( my ($prop_key, $prop_val) = $dsn_part =~  m/^(.)=(.*)$/ ) {
         $given_props{$prop_key} = $prop_val;
      }
      else {
         PTDEBUG && _d('Interpreting', $dsn_part, 'as h=', $dsn_part);
         $given_props{h} = $dsn_part;
      }
   }

foreach my $key ( keys %$opts ) {
      PTDEBUG && _d('Finding value for', $key);
      $final_props{$key} = $given_props{$key};
      if (   !defined $final_props{$key}
           && defined $prev->{$key} && $opts->{$key}->{copy} )
      {
         $final_props{$key} = $prev->{$key};
         PTDEBUG && _d('Copying value for', $key, 'from previous DSN');
      }
      if ( !defined $final_props{$key} ) {
         $final_props{$key} = $defaults->{$key};
         PTDEBUG && _d('Copying value for', $key, 'from defaults');
      }
   }

foreach my $key ( keys %given_props ) {
      die "Unknown DSN option '$key' in '$dsn'.  For more details, "
            . "please use the --help option, or try 'perldoc $PROGRAM_NAME' "
            . "for complete documentation."
         unless exists $opts->{$key};
   }
   if ( (my $required = $self->prop('required')) ) {
      foreach my $key ( keys %$required ) {
         die "Missing required DSN option '$key' in '$dsn'.  For more details, "
               . "please use the --help option, or try 'perldoc $PROGRAM_NAME' "
               . "for complete documentation."
            unless $final_props{$key};
      }
   }

return \%final_props;
}

sub parse_options {
   my ( $self, $o ) = @_;
   die 'I need an OptionParser object' unless ref $o eq 'OptionParser';
   my $dsn_string
      = join(',',
          map  { "$_=".$o->get($_); }
          grep { $o->has($_) && $o->get($_) }
          keys %{$self->{opts}}
        );
   PTDEBUG && _d('DSN string made from options:', $dsn_string);
   return $self->parse($dsn_string);
}

sub as_string {
   my ( $self, $dsn, $props ) = @_;
   return $dsn unless ref $dsn;
   my @keys = $props ? @$props : sort keys %$dsn;
   return join(',',
      map  { "$_=" . ($_ eq 'p' ? '...' : $dsn->{$_}) }
      grep {
         exists $self->{opts}->{$_}
         && exists $dsn->{$_}
         && defined $dsn->{$_}
      } @keys);
}

sub usage {
   my ( $self ) = @_;
   my $usage
      = "DSN syntax is key=value[,key=value...]  Allowable DSN keys:\n\n"
      . "  KEY  COPY  MEANING\n"
      . "  ===  ====  =============================================\n";
   my %opts = %{$self->{opts}};
   foreach my $key ( sort keys %opts ) {
      $usage .= "  $key    "
             .  ($opts{$key}->{copy} ? 'yes   ' : 'no    ')
             .  ($opts{$key}->{desc} || '[No description]')
             . "\n";
   }
   $usage .= "\n  If the DSN is a bareword, the word is treated as the 'h' key.\n";
   return $usage;
}

sub get_cxn_params {
   my ( $self, $info ) = @_;
   my $dsn;
   my %opts = %{$self->{opts}};
   my $driver = $self->prop('dbidriver') || '';
   if ( $driver eq 'Pg' ) {
      $dsn = 'DBI:Pg:dbname=' . ( $info->{D} || '' ) . ';'
         . join(';', map  { "$opts{$_}->{dsn}=$info->{$_}" }
                     grep { defined $info->{$_} }
                     qw(h P));
   }
   else {
      $dsn = 'DBI:mysql:' . ( $info->{D} || '' ) . ';'
         . join(';', map  { "$opts{$_}->{dsn}=$info->{$_}" }
                     grep { defined $info->{$_} }
                     qw(F h P S A))
         . ';mysql_read_default_group=client'
         . ($info->{L} ? ';mysql_local_infile=1' : '');
   }
   PTDEBUG && _d($dsn);
   return ($dsn, $info->{u}, $info->{p});
}

sub fill_in_dsn {
   my ( $self, $dbh, $dsn ) = @_;
   my $vars = $dbh->selectall_hashref('SHOW VARIABLES', 'Variable_name');
   my ($user, $db) = $dbh->selectrow_array('SELECT USER(), DATABASE()');
   $user =~ s/@.*//;
   $dsn->{h} ||= $vars->{hostname}->{Value};
   $dsn->{S} ||= $vars->{'socket'}->{Value};
   $dsn->{P} ||= $vars->{port}->{Value};
   $dsn->{u} ||= $user;
   $dsn->{D} ||= $db;
}

sub get_dbh {
   my ( $self, $cxn_string, $user, $pass, $opts ) = @_;
   $opts ||= {};
   my $defaults = {
      AutoCommit         => 0,
      RaiseError         => 1,
      PrintError         => 0,
      ShowErrorStatement => 1,
      mysql_enable_utf8 => ($cxn_string =~ m/charset=utf8/i ? 1 : 0),
   };
   @{$defaults}{ keys %$opts } = values %$opts;
   if (delete $defaults->{L}) { # L for LOAD DATA LOCAL INFILE, our own extension
      $defaults->{mysql_local_infile} = 1;
   }

if ( $opts->{mysql_use_result} ) {
      $defaults->{mysql_use_result} = 1;
   }

if ( !$have_dbi ) {
      die "Cannot connect to MySQL because the Perl DBI module is not "
         . "installed or not found.  Run 'perl -MDBI' to see the directories "
         . "that Perl searches for DBI.  If DBI is not installed, try:\n"
         . "  Debian/Ubuntu  apt-get install libdbi-perl\n"
         . "  RHEL/CentOS    yum install perl-DBI\n"
         . "  OpenSolaris    pkg install pkg:/SUNWpmdbi\n";

}

my $dbh;
   my $tries = 2;
   while ( !$dbh && $tries-- ) {
      PTDEBUG && _d($cxn_string, ' ', $user, ' ', $pass, 
         join(', ', map { "$_=>$defaults->{$_}" } keys %$defaults ));

$dbh = eval { DBI->connect($cxn_string, $user, $pass, $defaults) };

if ( !$dbh && $EVAL_ERROR ) {
         if ( $EVAL_ERROR =~ m/locate DBD\/mysql/i ) {
            die "Cannot connect to MySQL because the Perl DBD::mysql module is "
               . "not installed or not found.  Run 'perl -MDBD::mysql' to see "
               . "the directories that Perl searches for DBD::mysql.  If "
               . "DBD::mysql is not installed, try:\n"
               . "  Debian/Ubuntu  apt-get install libdbd-mysql-perl\n"
               . "  RHEL/CentOS    yum install perl-DBD-MySQL\n"
               . "  OpenSolaris    pgk install pkg:/SUNWapu13dbd-mysql\n";
         }
         elsif ( $EVAL_ERROR =~ m/not a compiled character set|character set utf8/ ) {
            PTDEBUG && _d('Going to try again without utf8 support');
            delete $defaults->{mysql_enable_utf8};
         }
         if ( !$tries ) {
            die $EVAL_ERROR;
         }
      }
   }

if ( $cxn_string =~ m/mysql/i ) {
      my $sql;

$sql = 'SELECT @@SQL_MODE';
      PTDEBUG && _d($dbh, $sql);
      my ($sql_mode) = eval { $dbh->selectrow_array($sql) };
      if ( $EVAL_ERROR ) {
         die "Error getting the current SQL_MODE: $EVAL_ERROR";
      }

if ( my ($charset) = $cxn_string =~ m/charset=([\w]+)/ ) {
         $sql = qq{/*!40101 SET NAMES "$charset"*/};
         PTDEBUG && _d($dbh, $sql);
         eval { $dbh->do($sql) };
         if ( $EVAL_ERROR ) {
            die "Error setting NAMES to $charset: $EVAL_ERROR";
         }
         PTDEBUG && _d('Enabling charset for STDOUT');
         if ( $charset eq 'utf8' ) {
            binmode(STDOUT, ':utf8')
               or die "Can't binmode(STDOUT, ':utf8'): $OS_ERROR";
         }
         else {
            binmode(STDOUT) or die "Can't binmode(STDOUT): $OS_ERROR";
         }
      }

if ( my $vars = $self->prop('set-vars') ) {
         $self->set_vars($dbh, $vars);
      }

$sql = 'SET @@SQL_QUOTE_SHOW_CREATE = 1'
            . '/*!40101, @@SQL_MODE=\'NO_AUTO_VALUE_ON_ZERO'
            . ($sql_mode ? ",$sql_mode" : '')
            . '\'*/';
      PTDEBUG && _d($dbh, $sql);
      eval { $dbh->do($sql) };
      if ( $EVAL_ERROR ) {
         die "Error setting SQL_QUOTE_SHOW_CREATE, SQL_MODE"
           . ($sql_mode ? " and $sql_mode" : '')
           . ": $EVAL_ERROR";
      }
   }

PTDEBUG && _d('DBH info: ',
      $dbh,
      Dumper($dbh->selectrow_hashref(
         'SELECT DATABASE(), CONNECTION_ID(), VERSION()/*!50038 , @@hostname*/')),
      'Connection info:',      $dbh->{mysql_hostinfo},
      'Character set info:',   Dumper($dbh->selectall_arrayref(
                     "SHOW VARIABLES LIKE 'character_set%'", { Slice => {}})),
      '$DBD::mysql::VERSION:', $DBD::mysql::VERSION,
      '$DBI::VERSION:',        $DBI::VERSION,
   );

return $dbh;
}

sub get_hostname {
   my ( $self, $dbh ) = @_;
   if ( my ($host) = ($dbh->{mysql_hostinfo} || '') =~ m/^(\w+) via/ ) {
      return $host;
   }
   my ( $hostname, $one ) = $dbh->selectrow_array(
      'SELECT /*!50038 @@hostname, */ 1');
   return $hostname;
}

sub disconnect {
   my ( $self, $dbh ) = @_;
   PTDEBUG && $self->print_active_handles($dbh);
   $dbh->disconnect;
}

sub print_active_handles {
   my ( $self, $thing, $level ) = @_;
   $level ||= 0;
   printf("# Active %sh: %s %s %s\n", ($thing->{Type} || 'undef'), "\t" x $level,
      $thing, (($thing->{Type} || '') eq 'st' ? $thing->{Statement} || '' : ''))
      or die "Cannot print: $OS_ERROR";
   foreach my $handle ( grep {defined} @{ $thing->{ChildHandles} } ) {
      $self->print_active_handles( $handle, $level + 1 );
   }
}

sub copy {
   my ( $self, $dsn_1, $dsn_2, %args ) = @_;
   die 'I need a dsn_1 argument' unless $dsn_1;
   die 'I need a dsn_2 argument' unless $dsn_2;
   my %new_dsn = map {
      my $key = $_;
      my $val;
      if ( $args{overwrite} ) {
         $val = defined $dsn_1->{$key} ? $dsn_1->{$key} : $dsn_2->{$key};
      }
      else {
         $val = defined $dsn_2->{$key} ? $dsn_2->{$key} : $dsn_1->{$key};
      }
      $key => $val;
   } keys %{$self->{opts}};
   return \%new_dsn;
}

sub set_vars {
   my ($self, $dbh, $vars) = @_;

return unless $vars;

foreach my $var ( sort keys %$vars ) {
      my $val = $vars->{$var}->{val};

(my $quoted_var = $var) =~ s/_/\\_/;
      my ($var_exists, $current_val);
      eval {
         ($var_exists, $current_val) = $dbh->selectrow_array(
            "SHOW VARIABLES LIKE '$quoted_var'");
      };
      my $e = $EVAL_ERROR;
      if ( $e ) {
         PTDEBUG && _d($e);
      }

if ( $vars->{$var}->{default} && !$var_exists ) {
         PTDEBUG && _d('Not setting default var', $var,
            'because it does not exist');
         next;
      }

if ( $current_val && $current_val eq $val ) {
         PTDEBUG && _d('Not setting var', $var, 'because its value',
            'is already', $val);
         next;
      }

my $sql = "SET SESSION $var=$val";
      PTDEBUG && _d($dbh, $sql);
      eval { $dbh->do($sql) };
      if ( my $set_error = $EVAL_ERROR ) {
         chomp($set_error);
         $set_error =~ s/ at \S+ line \d+//;
         my $msg = "Error setting $var: $set_error";
         if ( $current_val ) {
            $msg .= "  The current value for $var is $current_val.  "
                  . "If the variable is read only (not dynamic), specify "
                  . "--set-vars $var=$current_val to avoid this warning, "
                  . "else manually set the variable and restart MySQL.";
         }
         warn $msg . "\n\n";
      }
   }

return; 
}

1;
}
# ###########################################################################
# End DSNParser package
# ###########################################################################

# ###########################################################################
# Cxn package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/Cxn.pm
#   t/lib/Cxn.t
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################
{
package Cxn;

use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use Scalar::Util qw(blessed);
use constant {
   PTDEBUG => $ENV{PTDEBUG} || 0,
   PERCONA_TOOLKIT_TEST_USE_DSN_NAMES => $ENV{PERCONA_TOOLKIT_TEST_USE_DSN_NAMES} || 0,
};

sub new {
   my ( $class, %args ) = @_;
   my @required_args = qw(DSNParser OptionParser);
   foreach my $arg ( @required_args ) {
      die "I need a $arg argument" unless $args{$arg};
   };
   my ($dp, $o) = @args{@required_args};

my $dsn_defaults = $dp->parse_options($o);
   my $prev_dsn     = $args{prev_dsn};
   my $dsn          = $args{dsn};
   if ( !$dsn ) {
      $args{dsn_string} ||= 'h=' . ($dsn_defaults->{h} || 'localhost');

$dsn = $dp->parse(
         $args{dsn_string}, $prev_dsn, $dsn_defaults);
   }
   elsif ( $prev_dsn ) {
      $dsn = $dp->copy($prev_dsn, $dsn);
   }

my $dsn_name = $dp->as_string($dsn, [qw(h P S)])
               || $dp->as_string($dsn, [qw(F)])
               || '';

my $self = {
      dsn             => $dsn,
      dbh             => $args{dbh},
      dsn_name        => $dsn_name,
      hostname        => '',
      set             => $args{set},
      NAME_lc         => defined($args{NAME_lc}) ? $args{NAME_lc} : 1,
      dbh_set         => 0,
      ask_pass        => $o->get('ask-pass'),
      DSNParser       => $dp,
      is_cluster_node => undef,
      parent          => $args{parent},
   };

return bless $self, $class;
}

sub connect {
   my ( $self, %opts ) = @_;
   my $dsn = $opts{dsn} || $self->{dsn};
   my $dp  = $self->{DSNParser};

my $dbh = $self->{dbh};
   if ( !$dbh || !$dbh->ping() ) {
      if ( $self->{ask_pass} && !$self->{asked_for_pass} && !defined $dsn->{p} ) {
         $dsn->{p} = OptionParser::prompt_noecho("Enter MySQL password: ");
         $self->{asked_for_pass} = 1;
      }
      $dbh = $dp->get_dbh(
         $dp->get_cxn_params($dsn),
         {
            AutoCommit => 1,
            %opts,
         },
      );
   }

$dbh = $self->set_dbh($dbh);
   if ( $opts{dsn} ) {
      $self->{dsn}      = $dsn;
      $self->{dsn_name} = $dp->as_string($dsn, [qw(h P S)])
                       || $dp->as_string($dsn, [qw(F)])
                       || '';

}
   PTDEBUG && _d($dbh, 'Connected dbh to', $self->{hostname},$self->{dsn_name});
   return $dbh;
}

sub set_dbh {
   my ($self, $dbh) = @_;

if ( $self->{dbh} && $self->{dbh} == $dbh && $self->{dbh_set} ) {
      PTDEBUG && _d($dbh, 'Already set dbh');
      return $dbh;
   }

PTDEBUG && _d($dbh, 'Setting dbh');

$dbh->{FetchHashKeyName} = 'NAME_lc' if $self->{NAME_lc};

my $sql = 'SELECT @@server_id /*!50038 , @@hostname*/';
   PTDEBUG && _d($dbh, $sql);
   my ($server_id, $hostname) = $dbh->selectrow_array($sql);
   PTDEBUG && _d($dbh, 'hostname:', $hostname, $server_id);
   if ( $hostname ) {
      $self->{hostname} = $hostname;
   }

if ( $self->{parent} ) {
      PTDEBUG && _d($dbh, 'Setting InactiveDestroy=1 in parent');
      $dbh->{InactiveDestroy} = 1;
   }

if ( my $set = $self->{set}) {
      $set->($dbh);
   }

$self->{dbh}     = $dbh;
   $self->{dbh_set} = 1;
   return $dbh;
}

sub lost_connection {
   my ($self, $e) = @_;
   return 0 unless $e;
   return $e =~ m/MySQL server has gone away/
       || $e =~ m/Lost connection to MySQL server/;
}

sub dbh {
   my ($self) = @_;
   return $self->{dbh};
}

sub dsn {
   my ($self) = @_;
   return $self->{dsn};
}

sub name {
   my ($self) = @_;
   return $self->{dsn_name} if PERCONA_TOOLKIT_TEST_USE_DSN_NAMES;
   return $self->{hostname} || $self->{dsn_name} || 'unknown host';
}

sub get_id {
   my ($self, $cxn) = @_;

$cxn ||= $self;

my $unique_id;
   if ($cxn->is_cluster_node()) {  # for cluster we concatenate various variables to maximize id 'uniqueness' across versions
      my $sql  = q{SHOW STATUS LIKE 'wsrep\_local\_index'};
      my (undef, $wsrep_local_index) = $cxn->dbh->selectrow_array($sql);
      PTDEBUG && _d("Got cluster wsrep_local_index: ",$wsrep_local_index);
      $unique_id = $wsrep_local_index."|"; 
      foreach my $val ('server\_id', 'wsrep\_sst\_receive\_address', 'wsrep\_node\_name', 'wsrep\_node\_address') {
         my $sql = "SHOW VARIABLES LIKE '$val'";
         PTDEBUG && _d($cxn->name, $sql);
         my (undef, $val) = $cxn->dbh->selectrow_array($sql);
         $unique_id .= "|$val";
      }
   } else {
      my $sql  = 'SELECT @@SERVER_ID';
      PTDEBUG && _d($sql);
      $unique_id = $cxn->dbh->selectrow_array($sql);
   }
   PTDEBUG && _d("Generated unique id for cluster:", $unique_id);
   return $unique_id;
}

sub is_cluster_node {
   my ($self, $cxn) = @_;

$cxn ||= $self;
   my $sql = "SHOW VARIABLES LIKE 'wsrep\_on'";
   PTDEBUG && _d($cxn->name, $sql);
   my $row = $cxn->dbh->selectrow_arrayref($sql);
   return $row && $row->[1] && ($row->[1] eq 'ON' || $row->[1] eq '1') ? 1 : 0;

}

sub remove_duplicate_cxns {
   my ($self, %args) = @_;
   my @cxns     = @{$args{cxns}};
   my $seen_ids = $args{seen_ids} || {};
   PTDEBUG && _d("Removing duplicates from ", join(" ", map { $_->name } @cxns));
   my @trimmed_cxns;

for my $cxn ( @cxns ) {

my $id = $cxn->get_id();
      PTDEBUG && _d('Server ID for ', $cxn->name, ': ', $id);

if ( ! $seen_ids->{$id}++ ) {
         push @trimmed_cxns, $cxn
      }
      else {
         PTDEBUG && _d("Removing ", $cxn->name,
                       ", ID ", $id, ", because we've already seen it");
      }
   }

return \@trimmed_cxns;
}

sub DESTROY {
   my ($self) = @_;

PTDEBUG && _d('Destroying cxn');

if ( $self->{parent} ) {
      PTDEBUG && _d($self->{dbh}, 'Not disconnecting dbh in parent');
   }
   elsif ( $self->{dbh}
           && blessed($self->{dbh})
           && $self->{dbh}->can("disconnect") )
   {
      PTDEBUG && _d($self->{dbh}, 'Disconnecting dbh on', $self->{hostname},
         $self->{dsn_name});
      $self->{dbh}->disconnect();
   }

return;
}

1;
}
# ###########################################################################
# End Cxn package
# ###########################################################################

# ###########################################################################
# Daemon package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/Daemon.pm
#   t/lib/Daemon.t
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################
{
package Daemon;

use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;

use POSIX qw(setsid);

sub new {
   my ( $class, %args ) = @_;
   foreach my $arg ( qw(o) ) {
      die "I need a $arg argument" unless $args{$arg};
   }
   my $o = $args{o};
   my $self = {
      o        => $o,
      log_file => $o->has('log') ? $o->get('log') : undef,
      PID_file => $o->has('pid') ? $o->get('pid') : undef,
   };

check_PID_file(undef, $self->{PID_file});

PTDEBUG && _d('Daemonized child will log to', $self->{log_file});
   return bless $self, $class;
}

sub daemonize {
   my ( $self ) = @_;

PTDEBUG && _d('About to fork and daemonize');
   defined (my $pid = fork()) or die "Cannot fork: $OS_ERROR";
   if ( $pid ) {
      PTDEBUG && _d('Parent PID', $PID, 'exiting after forking child PID',$pid);
      exit;
   }

PTDEBUG && _d('Daemonizing child PID', $PID);
   $self->{PID_owner} = $PID;
   $self->{child}     = 1;

POSIX::setsid() or die "Cannot start a new session: $OS_ERROR";
   chdir '/'       or die "Cannot chdir to /: $OS_ERROR";

$self->_make_PID_file();

$OUTPUT_AUTOFLUSH = 1;

PTDEBUG && _d('Redirecting STDIN to /dev/null');
   close STDIN;
   open  STDIN, '/dev/null'
      or die "Cannot reopen STDIN to /dev/null: $OS_ERROR";

if ( $self->{log_file} ) {
      PTDEBUG && _d('Redirecting STDOUT and STDERR to', $self->{log_file});
      close STDOUT;
      open  STDOUT, '>>', $self->{log_file}
         or die "Cannot open log file $self->{log_file}: $OS_ERROR";

close STDERR;
      open  STDERR, ">&STDOUT"
         or die "Cannot dupe STDERR to STDOUT: $OS_ERROR"; 
   }
   else {
      if ( -t STDOUT ) {
         PTDEBUG && _d('No log file and STDOUT is a terminal;',
            'redirecting to /dev/null');
         close STDOUT;
         open  STDOUT, '>', '/dev/null'
            or die "Cannot reopen STDOUT to /dev/null: $OS_ERROR";
      }
      if ( -t STDERR ) {
         PTDEBUG && _d('No log file and STDERR is a terminal;',
            'redirecting to /dev/null');
         close STDERR;
         open  STDERR, '>', '/dev/null'
            or die "Cannot reopen STDERR to /dev/null: $OS_ERROR";
      }
   }

return;
}

sub check_PID_file {
   my ( $self, $file ) = @_;
   my $PID_file = $self ? $self->{PID_file} : $file;
   PTDEBUG && _d('Checking PID file', $PID_file);
   if ( $PID_file && -f $PID_file ) {
      my $pid;
      eval {
         chomp($pid = (slurp_file($PID_file) || ''));
      };
      if ( $EVAL_ERROR ) {
         die "The PID file $PID_file already exists but it cannot be read: "
            . $EVAL_ERROR;
      }
      PTDEBUG && _d('PID file exists; it contains PID', $pid);
      if ( $pid ) {
         my $pid_is_alive = kill 0, $pid;
         if ( $pid_is_alive ) {
            die "The PID file $PID_file already exists "
               . " and the PID that it contains, $pid, is running";
         }
         else {
            warn "Overwriting PID file $PID_file because the PID that it "
               . "contains, $pid, is not running";
         }
      }
      else {
         die "The PID file $PID_file already exists but it does not "
            . "contain a PID";
      }
   }
   else {
      PTDEBUG && _d('No PID file');
   }
   return;
}

sub make_PID_file {
   my ( $self ) = @_;
   if ( exists $self->{child} ) {
      die "Do not call Daemon::make_PID_file() for daemonized scripts";
   }
   $self->_make_PID_file();
   $self->{PID_owner} = $PID;
   return;
}

sub _make_PID_file {
   my ( $self ) = @_;

my $PID_file = $self->{PID_file};
   if ( !$PID_file ) {
      PTDEBUG && _d('No PID file to create');
      return;
   }

$self->check_PID_file();

open my $PID_FH, '>', $PID_file
      or die "Cannot open PID file $PID_file: $OS_ERROR";
   print $PID_FH $PID
      or die "Cannot print to PID file $PID_file: $OS_ERROR";
   close $PID_FH
      or die "Cannot close PID file $PID_file: $OS_ERROR";

PTDEBUG && _d('Created PID file:', $self->{PID_file});
   return;
}

sub _remove_PID_file {
   my ( $self ) = @_;
   if ( $self->{PID_file} && -f $self->{PID_file} ) {
      unlink $self->{PID_file}
         or warn "Cannot remove PID file $self->{PID_file}: $OS_ERROR";
      PTDEBUG && _d('Removed PID file');
   }
   else {
      PTDEBUG && _d('No PID to remove');
   }
   return;
}

sub DESTROY {
   my ( $self ) = @_;

$self->_remove_PID_file() if ($self->{PID_owner} || 0) == $PID;

return;
}

sub slurp_file {
   my ($file) = @_;
   return unless $file;
   open my $fh, "<", $file or die "Cannot open $file: $OS_ERROR";
   return do { local $/; <$fh> };
}

1;
}
# ###########################################################################
# End Daemon package
# ###########################################################################

# ###########################################################################
# Transformers package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/Transformers.pm
#   t/lib/Transformers.t
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################
{
package Transformers;

use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;

use Time::Local qw(timegm timelocal);
use Digest::MD5 qw(md5_hex);
use B qw();

BEGIN {
   require Exporter;
   our @ISA         = qw(Exporter);
   our %EXPORT_TAGS = ();
   our @EXPORT      = ();
   our @EXPORT_OK   = qw(
      micro_t
      percentage_of
      secs_to_time
      time_to_secs
      shorten
      ts
      parse_timestamp
      unix_timestamp
      any_unix_timestamp
      make_checksum
      crc32
      encode_json
   );
}

our $mysql_ts  = qr/(\d\d)(\d\d)(\d\d) +(\d+):(\d+):(\d+)(\.\d+)?/;
our $proper_ts = qr/(\d\d\d\d)-(\d\d)-(\d\d)[T ](\d\d):(\d\d):(\d\d)(\.\d+)?/;
our $n_ts      = qr/(\d{1,5})([shmd]?)/; # Limit \d{1,5} because \d{6} looks

sub micro_t {
   my ( $t, %args ) = @_;
   my $p_ms = defined $args{p_ms} ? $args{p_ms} : 0;  # precision for ms vals
   my $p_s  = defined $args{p_s}  ? $args{p_s}  : 0;  # precision for s vals
   my $f;

$t = 0 if $t < 0;

$t = sprintf('%.17f', $t) if $t =~ /e/;

$t =~ s/\.(\d{1,6})\d*/\.$1/;

if ($t > 0 && $t <= 0.000999) {
      $f = ($t * 1000000) . 'us';
   }
   elsif ($t >= 0.001000 && $t <= 0.999999) {
      $f = sprintf("%.${p_ms}f", $t * 1000);
      $f = ($f * 1) . 'ms'; # * 1 to remove insignificant zeros
   }
   elsif ($t >= 1) {
      $f = sprintf("%.${p_s}f", $t);
      $f = ($f * 1) . 's'; # * 1 to remove insignificant zeros
   }
   else {
      $f = 0;  # $t should = 0 at this point
   }

return $f;
}

sub percentage_of {
   my ( $is, $of, %args ) = @_;
   my $p   = $args{p} || 0; # float precision
   my $fmt = $p ? "%.${p}f" : "%d";
   return sprintf $fmt, ($is * 100) / ($of ||= 1);
}

sub secs_to_time {
   my ( $secs, $fmt ) = @_;
   $secs ||= 0;
   return '00:00' unless $secs;

$fmt ||= $secs >= 86_400 ? 'd'
          : $secs >= 3_600  ? 'h'
          :                   'm';

return
      $fmt eq 'd' ? sprintf(
         "%d+%02d:%02d:%02d",
         int($secs / 86_400),
         int(($secs % 86_400) / 3_600),
         int(($secs % 3_600) / 60),
         $secs % 60)
      : $fmt eq 'h' ? sprintf(
         "%02d:%02d:%02d",
         int(($secs % 86_400) / 3_600),
         int(($secs % 3_600) / 60),
         $secs % 60)
      : sprintf(
         "%02d:%02d",
         int(($secs % 3_600) / 60),
         $secs % 60);
}

sub time_to_secs {
   my ( $val, $default_suffix ) = @_;
   die "I need a val argument" unless defined $val;
   my $t = 0;
   my ( $prefix, $num, $suffix ) = $val =~ m/([+-]?)(\d+)([a-z])?$/;
   $suffix = $suffix || $default_suffix || 's';
   if ( $suffix =~ m/[smhd]/ ) {
      $t = $suffix eq 's' ? $num * 1        # Seconds
         : $suffix eq 'm' ? $num * 60       # Minutes
         : $suffix eq 'h' ? $num * 3600     # Hours
         :                  $num * 86400;   # Days

$t *= -1 if $prefix && $prefix eq '-';
   }
   else {
      die "Invalid suffix for $val: $suffix";
   }
   return $t;
}

sub shorten {
   my ( $num, %args ) = @_;
   my $p = defined $args{p} ? $args{p} : 2;     # float precision
   my $d = defined $args{d} ? $args{d} : 1_024; # divisor
   my $n = 0;
   my @units = ('', qw(k M G T P E Z Y));
   while ( $num >= $d && $n < @units - 1 ) {
      $num /= $d;
      ++$n;
   }
   return sprintf(
      $num =~ m/\./ || $n
         ? "%.${p}f%s"
         : '%d',
      $num, $units[$n]);
}

sub ts {
   my ( $time, $gmt ) = @_;
   my ( $sec, $min, $hour, $mday, $mon, $year )
      = $gmt ? gmtime($time) : localtime($time);
   $mon  += 1;
   $year += 1900;
   my $val = sprintf("%d-%02d-%02dT%02d:%02d:%02d",
      $year, $mon, $mday, $hour, $min, $sec);
   if ( my ($us) = $time =~ m/(\.\d+)$/ ) {
      $us = sprintf("%.6f", $us);
      $us =~ s/^0\././;
      $val .= $us;
   }
   return $val;
}

sub parse_timestamp {
   my ( $val ) = @_;
   if ( my($y, $m, $d, $h, $i, $s, $f)
         = $val =~ m/^$mysql_ts$/ )
   {
      return sprintf "%d-%02d-%02d %02d:%02d:"
                     . (defined $f ? '%09.6f' : '%02d'),
                     $y + 2000, $m, $d, $h, $i, (defined $f ? $s + $f : $s);
   }
   elsif ( $val =~ m/^$proper_ts$/ ) {
      return $val;
   }
   return $val;
}

sub unix_timestamp {
   my ( $val, $gmt ) = @_;
   if ( my($y, $m, $d, $h, $i, $s, $us) = $val =~ m/^$proper_ts$/ ) {
      $val = $gmt
         ? timegm($s, $i, $h, $d, $m - 1, $y)
         : timelocal($s, $i, $h, $d, $m - 1, $y);
      if ( defined $us ) {
         $us = sprintf('%.6f', $us);
         $us =~ s/^0\././;
         $val .= $us;
      }
   }
   return $val;
}

sub any_unix_timestamp {
   my ( $val, $callback ) = @_;

if ( my ($n, $suffix) = $val =~ m/^$n_ts$/ ) {
      $n = $suffix eq 's' ? $n            # Seconds
         : $suffix eq 'm' ? $n * 60       # Minutes
         : $suffix eq 'h' ? $n * 3600     # Hours
         : $suffix eq 'd' ? $n * 86400    # Days
         :                  $n;           # default: Seconds
      PTDEBUG && _d('ts is now - N[shmd]:', $n);
      return time - $n;
   }
   elsif ( $val =~ m/^\d{9,}/ ) {
      PTDEBUG && _d('ts is already a unix timestamp');
      return $val;
   }
   elsif ( my ($ymd, $hms) = $val =~ m/^(\d{6})(?:\s+(\d+:\d+:\d+))?/ ) {
      PTDEBUG && _d('ts is MySQL slow log timestamp');
      $val .= ' 00:00:00' unless $hms;
      return unix_timestamp(parse_timestamp($val));
   }
   elsif ( ($ymd, $hms) = $val =~ m/^(\d{4}-\d\d-\d\d)(?:[T ](\d+:\d+:\d+))?/) {
      PTDEBUG && _d('ts is properly formatted timestamp');
      $val .= ' 00:00:00' unless $hms;
      return unix_timestamp($val);
   }
   else {
      PTDEBUG && _d('ts is MySQL expression');
      return $callback->($val) if $callback && ref $callback eq 'CODE';
   }

PTDEBUG && _d('Unknown ts type:', $val);
   return;
}

sub make_checksum {
   my ( $val ) = @_;
   my $checksum = uc substr(md5_hex($val), -16);
   PTDEBUG && _d($checksum, 'checksum for', $val);
   return $checksum;
}

sub crc32 {
   my ( $string ) = @_;
   return unless $string;
   my $poly = 0xEDB88320;
   my $crc  = 0xFFFFFFFF;
   foreach my $char ( split(//, $string) ) {
      my $comp = ($crc ^ ord($char)) & 0xFF;
      for ( 1 .. 8 ) {
         $comp = $comp & 1 ? $poly ^ ($comp >> 1) : $comp >> 1;
      }
      $crc = (($crc >> 8) & 0x00FFFFFF) ^ $comp;
   }
   return $crc ^ 0xFFFFFFFF;
}

my $got_json = eval { require JSON };
sub encode_json {
   return JSON::encode_json(@_) if $got_json;
   my ( $data ) = @_;
   return (object_to_json($data) || '');
}

sub object_to_json {
   my ($obj) = @_;
   my $type  = ref($obj);

if($type eq 'HASH'){
      return hash_to_json($obj);
   }
   elsif($type eq 'ARRAY'){
      return array_to_json($obj);
   }
   else {
      return value_to_json($obj);
   }
}

sub hash_to_json {
   my ($obj) = @_;
   my @res;
   for my $k ( sort { $a cmp $b } keys %$obj ) {
      push @res, string_to_json( $k )
         .  ":"
         . ( object_to_json( $obj->{$k} ) || value_to_json( $obj->{$k} ) );
   }
   return '{' . ( @res ? join( ",", @res ) : '' )  . '}';
}

sub array_to_json {
   my ($obj) = @_;
   my @res;

for my $v (@$obj) {
      push @res, object_to_json($v) || value_to_json($v);
   }

return '[' . ( @res ? join( ",", @res ) : '' ) . ']';
}

sub value_to_json {
   my ($value) = @_;

return 'null' if(!defined $value);

my $b_obj = B::svref_2object(\$value);  # for round trip problem
   my $flags = $b_obj->FLAGS;
   return $value # as is 
      if $flags & ( B::SVp_IOK | B::SVp_NOK ) and !( $flags & B::SVp_POK ); # SvTYPE is IV or NV?

my $type = ref($value);

if( !$type ) {
      return string_to_json($value);
   }
   else {
      return 'null';
   }

}

my %esc = (
   "\n" => '\n',
   "\r" => '\r',
   "\t" => '\t',
   "\f" => '\f',
   "\b" => '\b',
   "\"" => '\"',
   "\\" => '\\\\',
   "\'" => '\\\'',
);

sub string_to_json {
   my ($arg) = @_;

$arg =~ s/([\x22\x5c\n\r\t\f\b])/$esc{$1}/g;
   $arg =~ s/\//\\\//g;
   $arg =~ s/([\x00-\x08\x0b\x0e-\x1f])/'\\u00' . unpack('H2', $1)/eg;

utf8::upgrade($arg);
   utf8::encode($arg);

return '"' . $arg . '"';
}

1;
}
# ###########################################################################
# End Transformers package
# ###########################################################################

# ###########################################################################
# HTTP::Micro package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/HTTP/Micro.pm
#   t/lib/HTTP/Micro.t
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################
{
package HTTP::Micro;

our $VERSION = '0.01';

use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use Carp ();

my @attributes;
BEGIN {
    @attributes = qw(agent timeout);
    no strict 'refs';
    for my $accessor ( @attributes ) {
        *{$accessor} = sub {
            @_ > 1 ? $_[0]->{$accessor} = $_[1] : $_[0]->{$accessor};
        };
    }
}

sub new {
    my($class, %args) = @_;
    (my $agent = $class) =~ s{::}{-}g;
    my $self = {
        agent        => $agent . "/" . ($class->VERSION || 0),
        timeout      => 60,
    };
    for my $key ( @attributes ) {
        $self->{$key} = $args{$key} if exists $args{$key}
    }
    return bless $self, $class;
}

my %DefaultPort = (
    http => 80,
    https => 443,
);

sub request {
    my ($self, $method, $url, $args) = @_;
    @_ == 3 || (@_ == 4 && ref $args eq 'HASH')
      or Carp::croak(q/Usage: $http->request(METHOD, URL, [HASHREF])/);
    $args ||= {}; # we keep some state in this during _request

my $response;
    for ( 0 .. 1 ) {
        $response = eval { $self->_request($method, $url, $args) };
        last unless $@ && $method eq 'GET'
            && $@ =~ m{^(?:Socket closed|Unexpected end)};
    }

if (my $e = "$@") {
        $response = {
            success => q{},
            status  => 599,
            reason  => 'Internal Exception',
            content => $e,
            headers => {
                'content-type'   => 'text/plain',
                'content-length' => length $e,
            }
        };
    }
    return $response;
}

sub _request {
    my ($self, $method, $url, $args) = @_;

my ($scheme, $host, $port, $path_query) = $self->_split_url($url);

my $request = {
        method    => $method,
        scheme    => $scheme,
        host_port => ($port == $DefaultPort{$scheme} ? $host : "$host:$port"),
        uri       => $path_query,
        headers   => {},
    };

my $handle  = HTTP::Micro::Handle->new(timeout => $self->{timeout});

$handle->connect($scheme, $host, $port);

$self->_prepare_headers_and_cb($request, $args);
    $handle->write_request_header(@{$request}{qw/method uri headers/});
    $handle->write_content_body($request) if $request->{content};

my $response;
    do { $response = $handle->read_response_header }
        until (substr($response->{status},0,1) ne '1');

if (!($method eq 'HEAD' || $response->{status} =~ /^[23]04/)) {
        $response->{content} = '';
        $handle->read_content_body(sub { $_[1]->{content} .= $_[0] }, $response);
    }

$handle->close;
    $response->{success} = substr($response->{status},0,1) eq '2';
    return $response;
}

sub _prepare_headers_and_cb {
    my ($self, $request, $args) = @_;

for ($args->{headers}) {
        next unless defined;
        while (my ($k, $v) = each %$_) {
            $request->{headers}{lc $k} = $v;
        }
    }
    $request->{headers}{'host'}         = $request->{host_port};
    $request->{headers}{'connection'}   = "close";
    $request->{headers}{'user-agent'} ||= $self->{agent};

if (defined $args->{content}) {
        $request->{headers}{'content-type'} ||= "application/octet-stream";
        utf8::downgrade($args->{content}, 1)
            or Carp::croak(q/Wide character in request message body/);
        $request->{headers}{'content-length'} = length $args->{content};
        $request->{content} = $args->{content};
    }
    return;
}

sub _split_url {
    my $url = pop;

my ($scheme, $authority, $path_query) = $url =~ m<\A([^:/?#]+)://([^/?#]*)([^#]*)>
      or Carp::croak(qq/Cannot parse URL: '$url'/);

$scheme     = lc $scheme;
    $path_query = "/$path_query" unless $path_query =~ m<\A/>;

my $host = (length($authority)) ? lc $authority : 'localhost';
       $host =~ s/\A[^@]*@//;   # userinfo
    my $port = do {
       $host =~ s/:([0-9]*)\z// && length $1
         ? $1
         : $DefaultPort{$scheme}
    };

return ($scheme, $host, $port, $path_query);
}

} # HTTP::Micro

{
   package HTTP::Micro::Handle;

use strict;
   use warnings FATAL => 'all';
   use English qw(-no_match_vars);

use Carp       qw(croak);
   use Errno      qw(EINTR EPIPE);
   use IO::Socket qw(SOCK_STREAM);

sub BUFSIZE () { 32768 }

my $Printable = sub {
       local $_ = shift;
       s/\r/\\r/g;
       s/\n/\\n/g;
       s/\t/\\t/g;
       s/([^\x20-\x7E])/sprintf('\\x%.2X', ord($1))/ge;
       $_;
   };

sub new {
       my ($class, %args) = @_;
       return bless {
           rbuf          => '',
           timeout       => 60,
           max_line_size => 16384,
           %args
       }, $class;
   }

my $ssl_verify_args = {
       check_cn         => "when_only",
       wildcards_in_alt => "anywhere",
       wildcards_in_cn  => "anywhere"
   };

sub connect {
       @_ == 4 || croak(q/Usage: $handle->connect(scheme, host, port)/);
       my ($self, $scheme, $host, $port) = @_;

if ( $scheme eq 'https' ) {
           eval "require IO::Socket::SSL"
               unless exists $INC{'IO/Socket/SSL.pm'};
           croak(qq/IO::Socket::SSL must be installed for https support\n/)
               unless $INC{'IO/Socket/SSL.pm'};
       }
       elsif ( $scheme ne 'http' ) {
         croak(qq/Unsupported URL scheme '$scheme'\n/);
       }

$self->{fh} = IO::Socket::INET->new(
           PeerHost  => $host,
           PeerPort  => $port,
           Proto     => 'tcp',
           Type      => SOCK_STREAM,
           Timeout   => $self->{timeout}
       ) or croak(qq/Could not connect to '$host:$port': $@/);

binmode($self->{fh})
         or croak(qq/Could not binmode() socket: '$!'/);

if ( $scheme eq 'https') {
           IO::Socket::SSL->start_SSL($self->{fh});
           ref($self->{fh}) eq 'IO::Socket::SSL'
               or die(qq/SSL connection failed for $host\n/);
           if ( $self->{fh}->can("verify_hostname") ) {
               $self->{fh}->verify_hostname( $host, $ssl_verify_args )
                  or die(qq/SSL certificate not valid for $host\n/);
           }
           else {
            my $fh = $self->{fh};
            _verify_hostname_of_cert($host, _peer_certificate($fh), $ssl_verify_args)
                  or die(qq/SSL certificate not valid for $host\n/);
            }
       }
         
       $self->{host} = $host;
       $self->{port} = $port;

return $self;
   }

sub close {
       @_ == 1 || croak(q/Usage: $handle->close()/);
       my ($self) = @_;
       CORE::close($self->{fh})
         or croak(qq/Could not close socket: '$!'/);
   }

sub write {
       @_ == 2 || croak(q/Usage: $handle->write(buf)/);
       my ($self, $buf) = @_;

my $len = length $buf;
       my $off = 0;

local $SIG{PIPE} = 'IGNORE';

while () {
           $self->can_write
             or croak(q/Timed out while waiting for socket to become ready for writing/);
           my $r = syswrite($self->{fh}, $buf, $len, $off);
           if (defined $r) {
               $len -= $r;
               $off += $r;
               last unless $len > 0;
           }
           elsif ($! == EPIPE) {
               croak(qq/Socket closed by remote server: $!/);
           }
           elsif ($! != EINTR) {
               croak(qq/Could not write to socket: '$!'/);
           }
       }
       return $off;
   }

sub read {
       @_ == 2 || @_ == 3 || croak(q/Usage: $handle->read(len)/);
       my ($self, $len) = @_;

my $buf  = '';
       my $got = length $self->{rbuf};

if ($got) {
           my $take = ($got < $len) ? $got : $len;
           $buf  = substr($self->{rbuf}, 0, $take, '');
           $len -= $take;
       }

while ($len > 0) {
           $self->can_read
             or croak(q/Timed out while waiting for socket to become ready for reading/);
           my $r = sysread($self->{fh}, $buf, $len, length $buf);
           if (defined $r) {
               last unless $r;
               $len -= $r;
           }
           elsif ($! != EINTR) {
               croak(qq/Could not read from socket: '$!'/);
           }
       }
       if ($len) {
           croak(q/Unexpected end of stream/);
       }
       return $buf;
   }

sub readline {
       @_ == 1 || croak(q/Usage: $handle->readline()/);
       my ($self) = @_;

while () {
           if ($self->{rbuf} =~ s/\A ([^\x0D\x0A]* \x0D?\x0A)//x) {
               return $1;
           }
           $self->can_read
             or croak(q/Timed out while waiting for socket to become ready for reading/);
           my $r = sysread($self->{fh}, $self->{rbuf}, BUFSIZE, length $self->{rbuf});
           if (defined $r) {
               last unless $r;
           }
           elsif ($! != EINTR) {
               croak(qq/Could not read from socket: '$!'/);
           }
       }
       croak(q/Unexpected end of stream while looking for line/);
   }

sub read_header_lines {
       @_ == 1 || @_ == 2 || croak(q/Usage: $handle->read_header_lines([headers])/);
       my ($self, $headers) = @_;
       $headers ||= {};
       my $lines   = 0;
       my $val;

while () {
            my $line = $self->readline;

if ($line =~ /\A ([^\x00-\x1F\x7F:]+) : [\x09\x20]* ([^\x0D\x0A]*)/x) {
                my ($field_name) = lc $1;
                $val = \($headers->{$field_name} = $2);
            }
            elsif ($line =~ /\A [\x09\x20]+ ([^\x0D\x0A]*)/x) {
                $val
                  or croak(q/Unexpected header continuation line/);
                next unless length $1;
                $$val .= ' ' if length $$val;
                $$val .= $1;
            }
            elsif ($line =~ /\A \x0D?\x0A \z/x) {
               last;
            }
            else {
               croak(q/Malformed header line: / . $Printable->($line));
            }
       }
       return $headers;
   }

sub write_header_lines {
       (@_ == 2 && ref $_[1] eq 'HASH') || croak(q/Usage: $handle->write_header_lines(headers)/);
       my($self, $headers) = @_;

my $buf = '';
       while (my ($k, $v) = each %$headers) {
           my $field_name = lc $k;
            $field_name =~ /\A [\x21\x23-\x27\x2A\x2B\x2D\x2E\x30-\x39\x41-\x5A\x5E-\x7A\x7C\x7E]+ \z/x
               or croak(q/Invalid HTTP header field name: / . $Printable->($field_name));
            $field_name =~ s/\b(\w)/\u$1/g;
            $buf .= "$field_name: $v\x0D\x0A";
       }
       $buf .= "\x0D\x0A";
       return $self->write($buf);
   }

sub read_content_body {
       @_ == 3 || @_ == 4 || croak(q/Usage: $handle->read_content_body(callback, response, [read_length])/);
       my ($self, $cb, $response, $len) = @_;
       $len ||= $response->{headers}{'content-length'};

croak("No content-length in the returned response, and this "
           . "UA doesn't implement chunking") unless defined $len;

while ($len > 0) {
           my $read = ($len > BUFSIZE) ? BUFSIZE : $len;
           $cb->($self->read($read), $response);
           $len -= $read;
       }

return;
   }

sub write_content_body {
       @_ == 2 || croak(q/Usage: $handle->write_content_body(request)/);
       my ($self, $request) = @_;
       my ($len, $content_length) = (0, $request->{headers}{'content-length'});

$len += $self->write($request->{content});

$len == $content_length
         or croak(qq/Content-Length missmatch (got: $len expected: $content_length)/);

return $len;
   }

sub read_response_header {
       @_ == 1 || croak(q/Usage: $handle->read_response_header()/);
       my ($self) = @_;

my $line = $self->readline;

$line =~ /\A (HTTP\/(0*\d+\.0*\d+)) [\x09\x20]+ ([0-9]{3}) [\x09\x20]+ ([^\x0D\x0A]*) \x0D?\x0A/x
         or croak(q/Malformed Status-Line: / . $Printable->($line));

my ($protocol, $version, $status, $reason) = ($1, $2, $3, $4);

return {
           status   => $status,
           reason   => $reason,
           headers  => $self->read_header_lines,
           protocol => $protocol,
       };
   }

sub write_request_header {
       @_ == 4 || croak(q/Usage: $handle->write_request_header(method, request_uri, headers)/);
       my ($self, $method, $request_uri, $headers) = @_;

return $self->write("$method $request_uri HTTP/1.1\x0D\x0A")
            + $self->write_header_lines($headers);
   }

sub _do_timeout {
       my ($self, $type, $timeout) = @_;
       $timeout = $self->{timeout}
           unless defined $timeout && $timeout >= 0;

my $fd = fileno $self->{fh};
       defined $fd && $fd >= 0
         or croak(q/select(2): 'Bad file descriptor'/);

my $initial = time;
       my $pending = $timeout;
       my $nfound;

vec(my $fdset = '', $fd, 1) = 1;

while () {
           $nfound = ($type eq 'read')
               ? select($fdset, undef, undef, $pending)
               : select(undef, $fdset, undef, $pending) ;
           if ($nfound == -1) {
               $! == EINTR
                 or croak(qq/select(2): '$!'/);
               redo if !$timeout || ($pending = $timeout - (time - $initial)) > 0;
               $nfound = 0;
           }
           last;
       }
       $! = 0;
       return $nfound;
   }

sub can_read {
       @_ == 1 || @_ == 2 || croak(q/Usage: $handle->can_read([timeout])/);
       my $self = shift;
       return $self->_do_timeout('read', @_)
   }

sub can_write {
       @_ == 1 || @_ == 2 || croak(q/Usage: $handle->can_write([timeout])/);
       my $self = shift;
       return $self->_do_timeout('write', @_)
   }
}  # HTTP::Micro::Handle

my $prog = <<'EOP';
BEGIN {
   if ( defined &IO::Socket::SSL::CAN_IPV6 ) {
      *CAN_IPV6 = \*IO::Socket::SSL::CAN_IPV6;
   }
   else {
      constant->import( CAN_IPV6 => '' );
   }
   my %const = (
      NID_CommonName => 13,
      GEN_DNS => 2,
      GEN_IPADD => 7,
   );
   while ( my ($name,$value) = each %const ) {
      no strict 'refs';
      *{$name} = UNIVERSAL::can( 'Net::SSLeay', $name ) || sub { $value };
   }
}
{
   use Carp qw(croak);
   my %dispatcher = (
      issuer =>  sub { Net::SSLeay::X509_NAME_oneline( Net::SSLeay::X509_get_issuer_name( shift )) },
      subject => sub { Net::SSLeay::X509_NAME_oneline( Net::SSLeay::X509_get_subject_name( shift )) },
   );
   if ( $Net::SSLeay::VERSION >= 1.30 ) {
      $dispatcher{commonName} = sub {
         my $cn = Net::SSLeay::X509_NAME_get_text_by_NID(
            Net::SSLeay::X509_get_subject_name( shift ), NID_CommonName);
         $cn =~s{\0$}{}; # work around Bug in Net::SSLeay <1.33
         $cn;
      }
   } else {
      $dispatcher{commonName} = sub {
         croak "you need at least Net::SSLeay version 1.30 for getting commonName"
      }
   }

if ( $Net::SSLeay::VERSION >= 1.33 ) {
      $dispatcher{subjectAltNames} = sub { Net::SSLeay::X509_get_subjectAltNames( shift ) };
   } else {
      $dispatcher{subjectAltNames} = sub {
         return;
      };
   }

$dispatcher{authority} = $dispatcher{issuer};
   $dispatcher{owner}     = $dispatcher{subject};
   $dispatcher{cn}        = $dispatcher{commonName};

sub _peer_certificate {
      my ($self, $field) = @_;
      my $ssl = $self->_get_ssl_object or return;

my $cert = ${*$self}{_SSL_certificate}
         ||= Net::SSLeay::get_peer_certificate($ssl)
         or return $self->error("Could not retrieve peer certificate");

if ($field) {
         my $sub = $dispatcher{$field} or croak
            "invalid argument for peer_certificate, valid are: ".join( " ",keys %dispatcher ).
            "\nMaybe you need to upgrade your Net::SSLeay";
         return $sub->($cert);
      } else {
         return $cert
      }
   }

my %scheme = (
      ldap => {
         wildcards_in_cn    => 0,
         wildcards_in_alt => 'leftmost',
         check_cn         => 'always',
      },
      http => {
         wildcards_in_cn    => 'anywhere',
         wildcards_in_alt => 'anywhere',
         check_cn         => 'when_only',
      },
      smtp => {
         wildcards_in_cn    => 0,
         wildcards_in_alt => 0,
         check_cn         => 'always'
      },
      none => {}, # do not check
   );

$scheme{www}  = $scheme{http}; # alias
   $scheme{xmpp} = $scheme{http}; # rfc 3920
   $scheme{pop3} = $scheme{ldap}; # rfc 2595
   $scheme{imap} = $scheme{ldap}; # rfc 2595
   $scheme{acap} = $scheme{ldap}; # rfc 2595
   $scheme{nntp} = $scheme{ldap}; # rfc 4642
   $scheme{ftp}  = $scheme{http}; # rfc 4217

sub _verify_hostname_of_cert {
      my $identity = shift;
      my $cert = shift;
      my $scheme = shift || 'none';
      if ( ! ref($scheme) ) {
         $scheme = $scheme{$scheme} or croak "scheme $scheme not defined";
      }

return 1 if ! %$scheme; # 'none'

my $commonName = $dispatcher{cn}->($cert);
      my @altNames   = $dispatcher{subjectAltNames}->($cert);

if ( my $sub = $scheme->{callback} ) {
         return $sub->($identity,$commonName,@altNames);
      }

my $ipn;
      if ( CAN_IPV6 and $identity =~m{:} ) {
         $ipn = IO::Socket::SSL::inet_pton(IO::Socket::SSL::AF_INET6,$identity)
            or croak "'$identity' is not IPv6, but neither IPv4 nor hostname";
      } elsif ( $identity =~m{^\d+\.\d+\.\d+\.\d+$} ) {
         $ipn = IO::Socket::SSL::inet_aton( $identity ) or croak "'$identity' is not IPv4, but neither IPv6 nor hostname";
      } else {
         if ( $identity =~m{[^a-zA-Z0-9_.\-]} ) {
            $identity =~m{\0} and croak("name '$identity' has \\0 byte");
            $identity = IO::Socket::SSL::idn_to_ascii($identity) or
               croak "Warning: Given name '$identity' could not be converted to IDNA!";
         }
      }

my $check_name = sub {
         my ($name,$identity,$wtyp) = @_;
         $wtyp ||= '';
         my $pattern;
         if ( $wtyp eq 'anywhere' and $name =~m{^([a-zA-Z0-9_\-]*)\*(.+)} ) {
            $pattern = qr{^\Q$1\E[a-zA-Z0-9_\-]*\Q$2\E$}i;
         } elsif ( $wtyp eq 'leftmost' and $name =~m{^\*(\..+)$} ) {
            $pattern = qr{^[a-zA-Z0-9_\-]*\Q$1\E$}i;
         } else {
            $pattern = qr{^\Q$name\E$}i;
         }
         return $identity =~ $pattern;
      };

my $alt_dnsNames = 0;
      while (@altNames) {
         my ($type, $name) = splice (@altNames, 0, 2);
         if ( $ipn and $type == GEN_IPADD ) {
            return 1 if $ipn eq $name;

} elsif ( ! $ipn and $type == GEN_DNS ) {
            $name =~s/\s+$//; $name =~s/^\s+//;
            $alt_dnsNames++;
            $check_name->($name,$identity,$scheme->{wildcards_in_alt})
               and return 1;
         }
      }

if ( ! $ipn and (
         $scheme->{check_cn} eq 'always' or
         $scheme->{check_cn} eq 'when_only' and !$alt_dnsNames)) {
         $check_name->($commonName,$identity,$scheme->{wildcards_in_cn})
            and return 1;
      }

return 0; # no match
   }
}
EOP

eval { require IO::Socket::SSL };
if ( $INC{"IO/Socket/SSL.pm"} ) {
   eval $prog;
   die $@ if $@;
}

1;
# ###########################################################################
# End HTTP::Micro package
# ###########################################################################

# ###########################################################################
# VersionCheck package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/VersionCheck.pm
#   t/lib/VersionCheck.t
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################
{
package VersionCheck;

use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);

use constant PTDEBUG => $ENV{PTDEBUG} || 0;

use Data::Dumper;
local $Data::Dumper::Indent    = 1;
local $Data::Dumper::Sortkeys  = 1;
local $Data::Dumper::Quotekeys = 0;

use Digest::MD5 qw(md5_hex);
use Sys::Hostname qw(hostname);
use File::Basename qw();
use File::Spec;
use FindBin qw();

eval {
   require Percona::Toolkit;
   require HTTP::Micro;
};

{
   my $file    = 'percona-version-check';
   my $home    = $ENV{HOME} || $ENV{HOMEPATH} || $ENV{USERPROFILE} || '.';
   my @vc_dirs = (
      '/etc/percona',
      '/etc/percona-toolkit',
      '/tmp',
      "$home",
   );

sub version_check_file {
      foreach my $dir ( @vc_dirs ) {
         if ( -d $dir && -w $dir ) {
            PTDEBUG && _d('Version check file', $file, 'in', $dir);
            return $dir . '/' . $file;
         }
      }
      PTDEBUG && _d('Version check file', $file, 'in', $ENV{PWD});
      return $file;  # in the CWD
   } 
}

sub version_check_time_limit {
   return 60 * 60 * 24;  # one day
}

sub version_check {
   my (%args) = @_;

my $instances = $args{instances} || [];
   my $instances_to_check;

PTDEBUG && _d('FindBin::Bin:', $FindBin::Bin);
   if ( !$args{force} ) {
      if ( $FindBin::Bin
           && (-d "$FindBin::Bin/../.bzr"    || 
               -d "$FindBin::Bin/../../.bzr" ||
               -d "$FindBin::Bin/../.git"    || 
               -d "$FindBin::Bin/../../.git" 
              ) 
         ) {
         PTDEBUG && _d("$FindBin::Bin/../.bzr disables --version-check");
         return;
      }
   }

eval {
      foreach my $instance ( @$instances ) {
         my ($name, $id) = get_instance_id($instance);
         $instance->{name} = $name;
         $instance->{id}   = $id;
      }

push @$instances, { name => 'system', id => 0 };

$instances_to_check = get_instances_to_check(
         instances => $instances,
         vc_file   => $args{vc_file},  # testing
         now       => $args{now},      # testing
      );
      PTDEBUG && _d(scalar @$instances_to_check, 'instances to check');
      return unless @$instances_to_check;

my $protocol = 'https';  
      eval { require IO::Socket::SSL; };
      if ( $EVAL_ERROR ) {
         PTDEBUG && _d($EVAL_ERROR);
         PTDEBUG && _d("SSL not available, won't run version_check");
         return;
      }
      PTDEBUG && _d('Using', $protocol);

my $advice = pingback(
         instances => $instances_to_check,
         protocol  => $protocol,
         url       => $args{url}                       # testing
                   || $ENV{PERCONA_VERSION_CHECK_URL}  # testing
                   || "$protocol://v.percona.com",
      );
      if ( $advice ) {
         PTDEBUG && _d('Advice:', Dumper($advice));
         if ( scalar @$advice > 1) {
            print "\n# " . scalar @$advice . " software updates are "
               . "available:\n";
         }
         else {
            print "\n# A software update is available:\n";
         }
         print join("\n", map { "#   * $_" } @$advice), "\n\n";
      }
   };
   if ( $EVAL_ERROR ) {
      PTDEBUG && _d('Version check failed:', $EVAL_ERROR);
   }

if ( @$instances_to_check ) {
      eval {
         update_check_times(
            instances => $instances_to_check,
            vc_file   => $args{vc_file},  # testing
            now       => $args{now},      # testing
         );
      };
      if ( $EVAL_ERROR ) {
         PTDEBUG && _d('Error updating version check file:', $EVAL_ERROR);
      }
   }

if ( $ENV{PTDEBUG_VERSION_CHECK} ) {
      warn "Exiting because the PTDEBUG_VERSION_CHECK "
         . "environment variable is defined.\n";
      exit 255;
   }

return;
}

sub get_instances_to_check {
   my (%args) = @_;

my $instances = $args{instances};
   my $now       = $args{now}     || int(time);
   my $vc_file   = $args{vc_file} || version_check_file();

if ( !-f $vc_file ) {
      PTDEBUG && _d('Version check file', $vc_file, 'does not exist;',
         'version checking all instances');
      return $instances;
   }

open my $fh, '<', $vc_file or die "Cannot open $vc_file: $OS_ERROR";
   chomp(my $file_contents = do { local $/ = undef; <$fh> });
   PTDEBUG && _d('Version check file', $vc_file, 'contents:', $file_contents);
   close $fh;
   my %last_check_time_for = $file_contents =~ /^([^,]+),(.+)$/mg;

my $check_time_limit = version_check_time_limit();
   my @instances_to_check;
   foreach my $instance ( @$instances ) {
      my $last_check_time = $last_check_time_for{ $instance->{id} };
      PTDEBUG && _d('Intsance', $instance->{id}, 'last checked',
         $last_check_time, 'now', $now, 'diff', $now - ($last_check_time || 0),
         'hours until next check',
         sprintf '%.2f',
            ($check_time_limit - ($now - ($last_check_time || 0))) / 3600);
      if ( !defined $last_check_time
           || ($now - $last_check_time) >= $check_time_limit ) {
         PTDEBUG && _d('Time to check', Dumper($instance));
         push @instances_to_check, $instance;
      }
   }

return \@instances_to_check;
}

sub update_check_times {
   my (%args) = @_;

my $instances = $args{instances};
   my $now       = $args{now}     || int(time);
   my $vc_file   = $args{vc_file} || version_check_file();
   PTDEBUG && _d('Updating last check time:', $now);

my %all_instances = map {
      $_->{id} => { name => $_->{name}, ts => $now }
   } @$instances;

if ( -f $vc_file ) {
      open my $fh, '<', $vc_file or die "Cannot read $vc_file: $OS_ERROR";
      my $contents = do { local $/ = undef; <$fh> };
      close $fh;

foreach my $line ( split("\n", ($contents || '')) ) {
         my ($id, $ts) = split(',', $line);
         if ( !exists $all_instances{$id} ) {
            $all_instances{$id} = { ts => $ts };  # original ts, not updated
         }
      }
   }

open my $fh, '>', $vc_file or die "Cannot write to $vc_file: $OS_ERROR";
   foreach my $id ( sort keys %all_instances ) {
      PTDEBUG && _d('Updated:', $id, Dumper($all_instances{$id}));
      print { $fh } $id . ',' . $all_instances{$id}->{ts} . "\n";
   }
   close $fh;

return;
}

sub get_instance_id {
   my ($instance) = @_;

my $dbh = $instance->{dbh};
   my $dsn = $instance->{dsn};

my $sql = q{SELECT CONCAT(@@hostname, @@port)};
   PTDEBUG && _d($sql);
   my ($name) = eval { $dbh->selectrow_array($sql) };
   if ( $EVAL_ERROR ) {
      PTDEBUG && _d($EVAL_ERROR);
      $sql = q{SELECT @@hostname};
      PTDEBUG && _d($sql);
      ($name) = eval { $dbh->selectrow_array($sql) };
      if ( $EVAL_ERROR ) {
         PTDEBUG && _d($EVAL_ERROR);
         $name = ($dsn->{h} || 'localhost') . ($dsn->{P} || 3306);
      }
      else {
         $sql = q{SHOW VARIABLES LIKE 'port'};
         PTDEBUG && _d($sql);
         my (undef, $port) = eval { $dbh->selectrow_array($sql) };
         PTDEBUG && _d('port:', $port);
         $name .= $port || '';
      }
   }
   my $id = md5_hex($name);

PTDEBUG && _d('MySQL instance:', $id, $name, Dumper($dsn));

return $name, $id;
}

sub pingback {
   my (%args) = @_;
   my @required_args = qw(url instances);
   foreach my $arg ( @required_args ) {
      die "I need a $arg arugment" unless $args{$arg};
   }
   my $url       = $args{url};
   my $instances = $args{instances};

my $ua = $args{ua} || HTTP::Micro->new( timeout => 3 );

my $response = $ua->request('GET', $url);
   PTDEBUG && _d('Server response:', Dumper($response));
   die "No response from GET $url"
      if !$response;
   die("GET on $url returned HTTP status $response->{status}; expected 200\n",
       ($response->{content} || '')) if $response->{status} != 200;
   die("GET on $url did not return any programs to check")
      if !$response->{content};

my $items = parse_server_response(
      response => $response->{content}
   );
   die "Failed to parse server requested programs: $response->{content}"
      if !scalar keys %$items;
      
   my $versions = get_versions(
      items     => $items,
      instances => $instances,
   );
   die "Failed to get any program versions; should have at least gotten Perl"
      if !scalar keys %$versions;

my $client_content = encode_client_response(
      items      => $items,
      versions   => $versions,
      general_id => md5_hex( hostname() ),
   );

my $client_response = {
      headers => { "X-Percona-Toolkit-Tool" => File::Basename::basename($0) },
      content => $client_content,
   };
   PTDEBUG && _d('Client response:', Dumper($client_response));

$response = $ua->request('POST', $url, $client_response);
   PTDEBUG && _d('Server suggestions:', Dumper($response));
   die "No response from POST $url $client_response"
      if !$response;
   die "POST $url returned HTTP status $response->{status}; expected 200"
      if $response->{status} != 200;

return unless $response->{content};

$items = parse_server_response(
      response   => $response->{content},
      split_vars => 0,
   );
   die "Failed to parse server suggestions: $response->{content}"
      if !scalar keys %$items;
   my @suggestions = map { $_->{vars} }
                     sort { $a->{item} cmp $b->{item} }
                     values %$items;

return \@suggestions;
}

sub encode_client_response {
   my (%args) = @_;
   my @required_args = qw(items versions general_id);
   foreach my $arg ( @required_args ) {
      die "I need a $arg arugment" unless $args{$arg};
   }
   my ($items, $versions, $general_id) = @args{@required_args};

my @lines;
   foreach my $item ( sort keys %$items ) {
      next unless exists $versions->{$item};
      if ( ref($versions->{$item}) eq 'HASH' ) {
         my $mysql_versions = $versions->{$item};
         for my $id ( sort keys %$mysql_versions ) {
            push @lines, join(';', $id, $item, $mysql_versions->{$id});
         }
      }
      else {
         push @lines, join(';', $general_id, $item, $versions->{$item});
      }
   }

my $client_response = join("\n", @lines) . "\n";
   return $client_response;
}

sub parse_server_response {
   my (%args) = @_;
   my @required_args = qw(response);
   foreach my $arg ( @required_args ) {
      die "I need a $arg arugment" unless $args{$arg};
   }
   my ($response) = @args{@required_args};

my %items = map {
      my ($item, $type, $vars) = split(";", $_);
      if ( !defined $args{split_vars} || $args{split_vars} ) {
         $vars = [ split(",", ($vars || '')) ];
      }
      $item => {
         item => $item,
         type => $type,
         vars => $vars,
      };
   } split("\n", $response);

PTDEBUG && _d('Items:', Dumper(\%items));

return \%items;
}

my %sub_for_type = (
   os_version          => \&get_os_version,
   perl_version        => \&get_perl_version,
   perl_module_version => \&get_perl_module_version,
   mysql_variable      => \&get_mysql_variable,
);

sub valid_item {
   my ($item) = @_;
   return unless $item;
   if ( !exists $sub_for_type{ $item->{type} } ) {
      PTDEBUG && _d('Invalid type:', $item->{type});
      return 0;
   }
   return 1;
}

sub get_versions {
   my (%args) = @_;
   my @required_args = qw(items);
   foreach my $arg ( @required_args ) {
      die "I need a $arg arugment" unless $args{$arg};
   }
   my ($items) = @args{@required_args};

my %versions;
   foreach my $item ( values %$items ) {
      next unless valid_item($item);
      eval {
         my $version = $sub_for_type{ $item->{type} }->(
            item      => $item,
            instances => $args{instances},
         );
         if ( $version ) {
            chomp $version unless ref($version);
            $versions{$item->{item}} = $version;
         }
      };
      if ( $EVAL_ERROR ) {
         PTDEBUG && _d('Error getting version for', Dumper($item), $EVAL_ERROR);
      }
   }

return \%versions;
}

sub get_os_version {
   if ( $OSNAME eq 'MSWin32' ) {
      require Win32;
      return Win32::GetOSDisplayName();
   }

chomp(my $platform = `uname -s`);
  PTDEBUG && _d('platform:', $platform);
  return $OSNAME unless $platform;

chomp(my $lsb_release
            = `which lsb_release 2>/dev/null | awk '{print \$1}'` || '');
   PTDEBUG && _d('lsb_release:', $lsb_release);

my $release = "";

if ( $platform eq 'Linux' ) {
      if ( -f "/etc/fedora-release" ) {
         $release = `cat /etc/fedora-release`;
      }
      elsif ( -f "/etc/redhat-release" ) {
         $release = `cat /etc/redhat-release`;
      }
      elsif ( -f "/etc/system-release" ) {
         $release = `cat /etc/system-release`;
      }
      elsif ( $lsb_release ) {
         $release = `$lsb_release -ds`;
      }
      elsif ( -f "/etc/lsb-release" ) {
         $release = `grep DISTRIB_DESCRIPTION /etc/lsb-release`;
         $release =~ s/^\w+="([^"]+)".+/$1/;
      }
      elsif ( -f "/etc/debian_version" ) {
         chomp(my $rel = `cat /etc/debian_version`);
         $release = "Debian $rel";
         if ( -f "/etc/apt/sources.list" ) {
             chomp(my $code_name = `awk '/^deb/ {print \$3}' /etc/apt/sources.list | awk -F/ '{print \$1}'| awk 'BEGIN {FS="|"} {print \$1}' | sort | uniq -c | sort -rn | head -n1 | awk '{print \$2}'`);
             $release .= " ($code_name)" if $code_name;
         }
      }
      elsif ( -f "/etc/os-release" ) { # openSUSE
         chomp($release = `grep PRETTY_NAME /etc/os-release`);
         $release =~ s/^PRETTY_NAME="(.+)"$/$1/;
      }
      elsif ( `ls /etc/*release 2>/dev/null` ) {
         if ( `grep DISTRIB_DESCRIPTION /etc/*release 2>/dev/null` ) {
            $release = `grep DISTRIB_DESCRIPTION /etc/*release | head -n1`;
         }
         else {
            $release = `cat /etc/*release | head -n1`;
         }
      }
   }
   elsif ( $platform =~ m/(?:BSD|^Darwin)$/ ) {
      my $rel = `uname -r`;
      $release = "$platform $rel";
   }
   elsif ( $platform eq "SunOS" ) {
      my $rel = `head -n1 /etc/release` || `uname -r`;
      $release = "$platform $rel";
   }

if ( !$release ) {
      PTDEBUG && _d('Failed to get the release, using platform');
      $release = $platform;
   }
   chomp($release);

$release =~ s/^"|"$//g;

PTDEBUG && _d('OS version =', $release);
   return $release;
}

sub get_perl_version {
   my (%args) = @_;
   my $item = $args{item};
   return unless $item;

my $version = sprintf '%vd', $PERL_VERSION;
   PTDEBUG && _d('Perl version', $version);
   return $version;
}

sub get_perl_module_version {
   my (%args) = @_;
   my $item = $args{item};
   return unless $item;

my $var     = '$' . $item->{item} . '::VERSION';
   my $version = eval "use $item->{item}; $var;";
   PTDEBUG && _d('Perl version for', $var, '=', $version);
   return $version;
}

sub get_mysql_variable {
   return get_from_mysql(
      show => 'VARIABLES',
      @_,
   );
}

sub get_from_mysql {
   my (%args) = @_;
   my $show      = $args{show};
   my $item      = $args{item};
   my $instances = $args{instances};
   return unless $show && $item;

if ( !$instances || !@$instances ) {
      PTDEBUG && _d('Cannot check', $item,
         'because there are no MySQL instances');
      return;
   }

if ($item->{item} eq 'MySQL' && $item->{type} eq 'mysql_variable') {
      @{$item->{vars}} = grep { $_ eq 'version' || $_ eq 'version_comment' } @{$item->{vars}};
   }

my @versions;
   my %version_for;
   foreach my $instance ( @$instances ) {
      next unless $instance->{id};  # special system instance has id=0
      my $dbh = $instance->{dbh};
      local $dbh->{FetchHashKeyName} = 'NAME_lc';
      my $sql = qq/SHOW $show/;
      PTDEBUG && _d($sql);
      my $rows = $dbh->selectall_hashref($sql, 'variable_name');

my @versions;
      foreach my $var ( @{$item->{vars}} ) {
         $var = lc($var);
         my $version = $rows->{$var}->{value};
         PTDEBUG && _d('MySQL version for', $item->{item}, '=', $version,
            'on', $instance->{name});
         push @versions, $version;
      }
      $version_for{ $instance->{id} } = join(' ', @versions);
   }

return \%version_for;
}

1;
}
# ###########################################################################
# End VersionCheck package
# ###########################################################################

# ###########################################################################
# Runtime package
# This package is a copy without comments from the original.  The original
# with comments and its test file can be found in the Bazaar repository at,
#   lib/Runtime.pm
#   t/lib/Runtime.t
# See https://launchpad.net/percona-toolkit for more information.
# ###########################################################################
{
package Runtime;

use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;

sub new {
   my ( $class, %args ) = @_;
   my @required_args = qw(now);
   foreach my $arg ( @required_args ) {
      die "I need a $arg argument" unless exists $args{$arg};
   }

my $run_time = $args{run_time};
   if ( defined $run_time ) {
      die "run_time must be > 0" if $run_time <= 0;
   }

my $now = $args{now};
   die "now must be a callback" unless ref $now eq 'CODE';

my $self = {
      run_time   => $run_time,
      now        => $now,
      start_time => undef,
      end_time   => undef,
      time_left  => undef,
      stop       => 0,
   };

return bless $self, $class;
}

sub time_left {
   my ( $self, %args ) = @_;

if ( $self->{stop} ) {
      PTDEBUG && _d("No time left because stop was called");
      return 0;
   }

my $now = $self->{now}->(%args);
   PTDEBUG && _d("Current time:", $now);

if ( !defined $self->{start_time} ) {
      $self->{start_time} = $now;
   }

return unless defined $now;

my $run_time = $self->{run_time};
   return unless defined $run_time;

if ( !$self->{end_time} ) {
      $self->{end_time} = $now + $run_time;
      PTDEBUG && _d("End time:", $self->{end_time});
   }

$self->{time_left} = $self->{end_time} - $now;
   PTDEBUG && _d("Time left:", $self->{time_left});
   return $self->{time_left};
}

sub have_time {
   my ( $self, %args ) = @_;
   my $time_left = $self->time_left(%args);
   return 1 if !defined $time_left;  # run forever
   return $time_left <= 0 ? 0 : 1;   # <=0s means run time has elapsed
}

sub time_elapsed {
   my ( $self, %args ) = @_;

my $start_time = $self->{start_time};
   return 0 unless $start_time;

my $now = $self->{now}->(%args);
   PTDEBUG && _d("Current time:", $now);

my $time_elapsed = $now - $start_time;
   PTDEBUG && _d("Time elapsed:", $time_elapsed);
   if ( $time_elapsed < 0 ) {
      warn "Current time $now is earlier than start time $start_time";
   }
   return $time_elapsed;
}

sub reset {
   my ( $self ) = @_;
   $self->{start_time} = undef;
   $self->{end_time}   = undef;
   $self->{time_left}  = undef;
   $self->{stop}       = 0;
   PTDEBUG && _d("Reset run time");
   return;
}

sub stop {
   my ( $self ) = @_;
   $self->{stop} = 1;
   return;
}

sub start {
   my ( $self ) = @_;
   $self->{stop} = 0;
   return;
}

1;
}
# ###########################################################################
# End Runtime package
# ###########################################################################

# ###########################################################################
# This is a combination of modules and programs in one -- a runnable module.
# http://www.perl.com/pub/a/2006/07/13/lightning-articles.html?page=last
# Or, look it up in the Camel book on pages 642 and 643 in the 3rd edition.
#
# Check at the end of this package for the call to main() which actually runs
# the program.
# ###########################################################################
package pt_fk_error_logger;

use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);

use sigtrap 'handler', \&sig_int, 'normal-signals';

use Percona::Toolkit;
use constant PTDEBUG => $ENV{PTDEBUG} || 0;

Transformers->import(qw(parse_timestamp));

my $oktorun     = 1;
my $exit_status = 0;

sub main {
   local @ARGV  = @_;  # set global ARGV for this package
   $oktorun     = 1;
   $exit_status = 0;

# ########################################################################
   # Get configuration information.
   # ########################################################################
   my $o = new OptionParser();
   $o->get_specs();
   $o->get_opts();

my $dp = $o->DSNParser();
   $dp->prop('set-vars', $o->set_vars());

my $src;
   if ( my $src_dsn_string = shift @ARGV ) {
      $src = Cxn->new(
         dsn_string   => $src_dsn_string,
         parent       => $o->get('daemonize'),
         DSNParser    => $dp,
         OptionParser => $o,
      );
   }

my $dst;
   if ( my $dst_dsn = $o->get('dest') ) {
      $dst = Cxn->new(
         dsn          => $dst_dsn,
         prev_dsn     => ($src ? $src->dsn : undef),
         parent       => $o->get('daemonize'),
         DSNParser    => $dp,
         OptionParser => $o,
      );
   }

if ( !$o->get('help') ) {
      if ( !$src ) {
         $o->save_error('No DSN was specified.');
      }
      if ( $dst && !$dst->dsn->{D} ) {
         $o->save_error("--dest requires a 'D' (database) part.");
      }
      if ( $dst && !$dst->dsn->{t} ) {
         $o->save_error("--dest requires a 't' (table) part.");
      }
   }

$o->usage_or_errors();

# ########################################################################
   # Connect to MySQL.
   # ########################################################################
   my $q = Quoter->new();

$src->connect();

my $ins_sth;
   if ( $dst ) {
      $dst->connect();
      my $db_tbl =  $q->join_quote($dst->dsn->{D}, $dst->dsn->{t});
      my $sql    = "INSERT IGNORE INTO $db_tbl VALUES (?, ?)";
      PTDEBUG && _d('--dest INSERT SQL:', $sql);
      $ins_sth   = $dst->dbh->prepare($sql);
   }

# ########################################################################
   # Daemonize only after (potentially) asking for passwords for --ask-pass.
   # ########################################################################
   my $daemon;
   if ( $o->get('daemonize') ) {
      $daemon = new Daemon(o=>$o);
      $daemon->daemonize();
      PTDEBUG && _d('I am a daemon now');
   }
   elsif ( $o->get('pid') ) {
      # We're not daemoninzing, it just handles PID stuff.
      $daemon = new Daemon(o=>$o);
      $daemon->make_PID_file();
   }

# If we daemonized, the parent has already exited and we're the child.
   # We shared a copy of every Cxn with the parent, and the parent's copies
   # were destroyed but the dbhs were not disconnected because the parent
   # attrib was true.  Now, as the child, set it false so the dbhs will be
   # disconnected when our Cxn copies are destroyed.  If we didn't daemonize,
   # then we're not really a parent (since we have no children), so set it
   # false to auto-disconnect the dbhs when our Cxns are destroyed.
   $src->{parent} = 0;
   $dst->{parent} = 0 if $dst;

# ########################################################################
   # Do the version-check
   # ########################################################################
   if ( $o->get('version-check') && (!$o->has('quiet') || !$o->get('quiet')) ) {
      VersionCheck::version_check(
         force     => $o->got('version-check'),
         instances => [
            { dbh => $src->dbh, dsn => $src->dsn },
            ($dst ? { dbh => $dst->dbh, dsn => $dst->dsn } : ())
         ],
      );
   }

# ########################################################################
   # Start finding and logging foreign key errors.
   # ########################################################################
   my $run_time = Runtime->new(
      run_time => $o->get('run-time'),
      now      => sub { return time },
   );

my $interval = $o->get('interval');
   my $iters    = $o->get('iterations');
   PTDEBUG && _d('iterations:', $iters, 'interval:', $interval);

ITERATION:
   while (
      $oktorun
      && $run_time->have_time()
      && (!defined $iters || $iters--)
   ) {
      my ($ts, $fk_error);
      eval {
         my $sql = "SHOW /*!40100 ENGINE*/ INNODB STATUS "
                 . "/* pt-fk-error-logger */";
         PTDEBUG && _d($sql);
         my $text = $src->dbh->selectrow_hashref($sql)->{status};
         ($ts, $fk_error) = get_fk_error($text);
      };
      if ( my $e = $EVAL_ERROR ) {
         PTDEBUG && _d('Error getting InnoDB status:', $e);
         if ( $src->lost_connection($e) ) {
            eval { $src->connect() };
            if ( $EVAL_ERROR ) {
               warn "Lost connection to MySQL.  Will try to reconnect "
                  . "in the next iteration.\n";
            }
            else {
               PTDEBUG && _d('Reconnected to MySQL');
               redo ITERATION;
            }
         }
         else {
            warn "Error parsing SHOW ENGINE INNODB STATUS: $EVAL_ERROR";
            $exit_status |= 1;
         }
      }
      else {
         if ( $ts && $fk_error ) {
            # Save and/or print the foreign key error.
            if ( $ins_sth ) {
               my $fk_ts = parse_timestamp($ts);
               PTDEBUG && _d('Saving fk error', $ts, $fk_error);
               eval {
                  $ins_sth->execute($fk_ts, $fk_error);
               };
               if ( $EVAL_ERROR ) {
                  warn $EVAL_ERROR;
                  PTDEBUG && _d($EVAL_ERROR);
               }
            }

if ( !$o->get('quiet') ) {
               print "$ts $fk_error\n\n";
            }
         }
      }

# Sleep if there's an --iteration left.
      if ( !defined $iters || $iters ) {
         PTDEBUG && _d('Sleeping', $interval, 'seconds');
         sleep $interval;
      }
   }

PTDEBUG && _d('Done running, exiting', $exit_status);
   return $exit_status;
}

# ############################################################################
# Subroutines
# ############################################################################

sub get_fk_error {
   my ( $text ) = @_;
   PTDEBUG && _d($text);

# Quick check if text even has a foreign key error.
   if ( $text !~ m/LATEST FOREIGN KEY ERROR/ ) {
      PTDEBUG && _d('No fk error');
      return;
   }

# InnoDB timestamp
   my $idb_ts = qr/((?:\d{6}|\d{4}-\d\d-\d\d) .\d:\d\d:\d\d)/;

my ($ts, $fke) = $text =~ m/LATEST FOREIGN KEY ERROR.+?$idb_ts\s*(.+?)---/ms;
   chomp $fke if $fke;

PTDEBUG && _d('Latest fk error:', $ts, $fke);
   return $ts, $fke;
}

sub sig_int {
   my ( $signal ) = @_;
   $oktorun = 0;
   print STDERR "# Caught SIG$signal.  Use 'kill -ABRT $PID' if "
      . "the tool does not exit normally in a few seconds.\n";
}

# ############################################################################
# Run the program.
# ############################################################################
if ( !caller ) { exit main(@ARGV); }

1; # Because this is a module as well as a script.

# ############################################################################
# Documentation
# ############################################################################
=pod

=head1 NAME

pt-fk-error-logger - Log MySQL foreign key errors.

=head1 SYNOPSIS

Usage: pt-fk-error-logger [OPTIONS] [DSN]

pt-fk-error-logger logs information about foreign key errors on the given
DSN.  Information is printed to C<STDOUT>, and it can also be saved to a
table by specifying L<"--dest">.  The tool runs for forever unless
L<"--run-time"> or L<"--iterations"> is specified.

Print foreign key errors on host1:

pt-fk-error-logger h=host1

Print foreign key errors on host1 once then exit:

pt-fk-error-logger h=host1 --iterations 1

Save foreign key errors on host1 to percona_schema.fke on host2:

pt-fk-error-logger h=host1 --dest h=host2,D=percona_schema,t=fke

=head1 RISKS

Percona Toolkit is mature, proven in the real world, and well tested,
but all database tools can pose a risk to the system and the database
server.  Before using this tool, please:

=over

=item * Read the tool's documentation

=item * Review the tool's known L<"BUGS">

=item * Test the tool on a non-production server

=item * Backup your production server and verify the backups

=back

=head1 DESCRIPTION

pt-fk-error-logger prints or saves the foreign key errors text from
C<SHOW INNODB STATUS>.  The errors are not parsed or interpreted in any
way.  Foreign key errors are uniquely identified by their timestamp.
Only new (more recent) errors are printed or saved.

By default the tool runs forever, checking every L<"--interval"> seconds
for new foreign key errors.  Specify L<"--run-time"> and/or L<"--iterations">
to limit how long the tool runs.

=head1 OUTPUT

The foreign key error text from C<SHOW ENGINE INNODB STATUS> is printed
to C<STDOUT>, unless L<"--quiet"> is specified.  Errors and warnings
are printed to C<STDERR>.

=head1 OPTIONS

This tool accepts additional command-line arguments.  Refer to the
L<"SYNOPSIS"> and usage information for details.

=over

=item --ask-pass

Prompt for a password when connecting to MySQL.

=item --charset

short form: -A; type: string

Default character set.  If the value is utf8, sets Perl's binmode on
STDOUT to utf8, passes the mysql_enable_utf8 option to DBD::mysql, and runs SET
NAMES UTF8 after connecting to MySQL.  Any other value sets binmode on STDOUT
without the utf8 layer, and runs SET NAMES after connecting to MySQL.

=item --config

type: Array

Read this comma-separated list of config files; if specified, this must be the
first option on the command line.

=item --daemonize

Fork to the background and detach from the shell.  POSIX operating systems only.

=item --database

short form: -D; type: string

Connect to this database.

=item --defaults-file

short form: -F; type: string

Only read mysql options from the given file.  You must give an absolute
pathname.

=item --dest

type: DSN

Save foreign key errors in this table.  The DSN must specify a database (D)
and table (t).

Missing DSN values are inherited from the DSN being monitored, so you
can omit most values if you're saving foreign key errors on the same
host.

The following table is suggested:

CREATE TABLE foreign_key_errors (
   ts datetime NOT NULL,
   error text NOT NULL,
   PRIMARY KEY (ts)
 )

The only information saved is the timestamp and the foreign key error text.

=item --help

Show help and exit.

=item --host

short form: -h; type: string

Connect to host.

=item --interval

type: time; default: 30

How often to check for foreign key errors.

=item --iterations

type: int

How many times to check for foreign key errors.  By default, this option
is undefined which means an infinite number of iterations.  The tool always
exits for L<"--run-time">, regardless of the value specified for this option.
For example, the tool will exit after 1 minute with
C<--run-time 1m --iterations 4 --interval 30> because 4 iterations at 30
second intervals would take 2 minutes, longer than the 1 mintue run-time.

=item --log

type: string

Print all output to this file when daemonized.

=item --password

short form: -p; type: string

Password to use when connecting.
If password contains commas they must be escaped with a backslash: "exam\,ple"

=item --pid

type: string

Create the given PID file.  The tool won't start if the PID file already
exists and the PID it contains is different than the current PID.  However,
if the PID file exists and the PID it contains is no longer running, the
tool will overwrite the PID file with the current PID.  The PID file is
removed automatically when the tool exits.

=item --port

short form: -P; type: int

Port number to use for connection.

=item --quiet

Do not print foreign key errors; only print errors and warnings to C<STDERR>.

=item --run-time

type: time

How long to run before exiting.  By default, the tool runs forever.

=item --set-vars

type: Array

Set the MySQL variables in this comma-separated list of C<variable=value> pairs.

By default, the tool sets:

=for comment ignore-pt-internal-value
MAGIC_set_vars

wait_timeout=10000

Variables specified on the command line override these defaults.  For
example, specifying C<--set-vars wait_timeout=500> overrides the defaultvalue of C<10000>.

The tool prints a warning and continues if a variable cannot be set.

=item --socket

short form: -S; type: string

Socket file to use for connection.

=item --user

short form: -u; type: string

User for login if not current user.

=item --version

Show version and exit.

=item --[no]version-check

default: yes

Check for the latest version of Percona Toolkit, MySQL, and other programs.

This is a standard "check for updates automatically" feature, with two
additional features.  First, the tool checks the version of other programs
on the local system in addition to its own version.  For example, it checks
the version of every MySQL server it connects to, Perl, and the Perl module
DBD::mysql.  Second, it checks for and warns about versions with known
problems.  For example, MySQL 5.5.25 had a critical bug and was re-released
as 5.5.25a.

Any updates or known problems are printed to STDOUT before the tool's normal
output.  This feature should never interfere with the normal operation of the
tool.

For more information, visit L<https://www.percona.com/version-check>.

=back

=head1 DSN OPTIONS

These DSN options are used to create a DSN.  Each option is given like
C<option=value>.  The options are case-sensitive, so P and p are not the
same option.  There cannot be whitespace before or after the C<=> and
if the value contains whitespace it must be quoted.  DSN options are
comma-separated.  See the L<percona-toolkit> manpage for full details.

=over

=item * A

dsn: charset; copy: yes

Default character set.

=item * D

dsn: database; copy: yes

Default database.

=item * F

dsn: mysql_read_default_file; copy: yes

Only read default options from the given file

=item * h

dsn: host; copy: yes

Connect to host.

=item * p

dsn: password; copy: yes

Password to use when connecting.
If password contains commas they must be escaped with a backslash: "exam\,ple"

=item * P

dsn: port; copy: yes

Port number to use for connection.

=item * S

dsn: mysql_socket; copy: yes

Socket file to use for connection.

=item * t

Table in which to store foreign key errors.

=item * u

dsn: user; copy: yes

User for login if not current user.

=back

=head1 ENVIRONMENT

The environment variable C<PTDEBUG> enables verbose debugging output to STDERR.
To enable debugging and capture all output to a file, run the tool like:

PTDEBUG=1 pt-fk-error-logger ... > FILE 2>&1

Be careful: debugging output is voluminous and can generate several megabytes
of output.

=head1 SYSTEM REQUIREMENTS

You need Perl, DBI, DBD::mysql, and some core packages that ought to be
installed in any reasonably new version of Perl.

=head1 BUGS

For a list of known bugs, see L<http://www.percona.com/bugs/pt-fk-error-logger>.

Please report bugs at L<https://bugs.launchpad.net/percona-toolkit>.
Include the following information in your bug report:

=over

=item * Complete command-line used to run the tool

=item * Tool L<"--version">

=item * MySQL version of all servers involved

=item * Output from the tool including STDERR

=item * Input files (log/dump/config files, etc.)

=back

If possible, include debugging output by running the tool with C<PTDEBUG>;
see L<"ENVIRONMENT">.

=head1 DOWNLOADING

Visit L<http://www.percona.com/software/percona-toolkit/> to download the
latest release of Percona Toolkit.  Or, get the latest release from the
command line:

wget percona.com/get/percona-toolkit.tar.gz

wget percona.com/get/percona-toolkit.rpm

wget percona.com/get/percona-toolkit.deb

You can also get individual tools from the latest release:

wget percona.com/get/TOOL

Replace C<TOOL> with the name of any tool.

=head1 AUTHORS

Daniel Nichter

=head1 ABOUT PERCONA TOOLKIT

This tool is part of Percona Toolkit, a collection of advanced command-line
tools for MySQL developed by Percona.  Percona Toolkit was forked from two
projects in June, 2011: Maatkit and Aspersa.  Those projects were created by
Baron Schwartz and primarily developed by him and Daniel Nichter.  Visit
L<http://www.percona.com/software/> to learn about other free, open-source
software from Percona.

=head1 COPYRIGHT, LICENSE, AND WARRANTY

THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, version 2; OR the Perl Artistic License.  On UNIX and similar
systems, you can issue `man perlgpl' or `man perlartistic' to read these
licenses.

You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA  02111-1307  USA.

=head1 VERSION

pt-fk-error-logger 2.2.16

=cut

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