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tincluabectedilo, is

tinclude esys$/$stat$.$ hs

todefine WFIE $10$

wotd cap$($const char $*,$ the$\_$t$)$;

struct stat sb;

Int aein$($Int arge, char $*$arge$)$

$(1)$

Int $J$

tine$\_$t lest$\_$tine$[$ GIFTLE$+1]$;

if $(\frac{?}{\text{b}\text{a}\text{r}}(args)\frac{}{b}ar(2))($

$$it$(1)$;

if $(--$ares $>$ MrTif $)$

wit$(1)$;

J

frtnitislirat im

for$($j $=1,$ jse seret; jes$)$

if $(+1=1(-$sov$(j),$san$)=-1)$

$t$

xit$(1)$;

$]$

inst$\_$t ine$($j$)=*$h$.$at$\_$nt ins;

for $(j$;$)$

t

for$($j$-1$; is argt; j$*)$

$,$ int$\_$tiar$($j$))$;

$,sen(69)$ :

$\}$

j

woid tow $($const thar $*$nene$,$ tine$\_$t last$)$

$(.)$

foss long ss statics sbout the file cas be resi check the wolification tive of

t$.$

fprintf$($stderr$,$ "lookout: $\text{'}$ks changedly", nane$)$;

exit$(6)$;

j

Modify the template program, "lookout. $5"$ on p$.56-57$ with the following additional capabilities

a$.$ Repeat the following steps $5$ times $($this means, after $5$ seconds of running, your program

should terminate without printing anything if there is no change detected.$)$

i$.$ Wait $1$ seconds using "sleep$(1)"$ call

ii$.$ Call "stat" system call to extract the file attributes against given files in command

line arguments $($the lookout, c program in p$.56$ may accept up to $10$ files$).$ Your

program should be able to accept up to $10$ filles for monitoring.

iii. You program should check any changes in any of the following attributes:

stmode

stuoliok

st size

st$.$atime

st motime

iv$.$ When your program detects any changes, your program should immediately print

out number codes given below and EXIT!

Change of st$\_$mode $-$ print $1$

Change of st$\_$nlink$-$ print $2$

Change of st$\_$size$-$print $3$

Change of st$\_$atime $-$ print $4$

Change of st$\_$mtime $-$ print $5$

Once printing is done, your program should terminate. Make sure your

condition checking and printing should be done in the above order! Make

sure you print number codes in one line $($without any newline character$)!$

Example output when you change the file contents $(9\mathrm{.}5,$ using vi$)$: $345$

If your program prints more than one number code, then place spaces in

between.