An implementation of the program tee.c is available at

$/$student$/$cmpt$214/2024/$summer$/$starter$/$le$4/$tee$.$c$.$ This program resembles the pro$-$

gram tee that you have used in Lab exercise $2,$ except that this program has a particular

liking to the letters $$c$,$m$,$p$,$ and $$t$.$ The program likes to capitalize those letters when$-$

ever it finds them. Do not change this. Moreover, there is a number of logical and syntactic

errors in this program $($using the appropriate compiler options in your Makefile will reveal

some of the syntactic errors$).$ Your task is to find and fix all errors. There are $4$ errors in

total. Some errors will be easy to fix $($gcc will point you to the errors$),$ and some will require

you to read the comments in the code, consult the man pages regarding the C functions you

are not familiar with, and use gdb$.$

Do not get overwhelmed by the code. The errors are all related to things you have already

used and have been discussed in class. The man pages might talk about things you don$$t

understand yet. Ignore those parts. Just make sure that the logic of the program is consistent

with what it is trying to do $($according to the comments and your knowledge of the real tee$).$

Once all errors are fixed, make sure to properly test the program. The following tests must

pass:

$1.$ echo all of stdin back onto stdout after EOF $($ctrl $+$ D$)$ is encountered on stdin,

$2.$ echo all of stdin to zero or more files given as command$-$line arguments,

$3.$ work correctly for inputs greater than $128$ characters $($do not change the values of

MIN ALLOC SIZE and MIN READ SIZE$),$ and

$4.$ capitalize the letters $$c$,$m$,$p$,$ and $$t$.$

$2$

eet $($reverse tee$)[40$ points$]$

Now that we have working tee program $($that is a little peculiar around the letters $$c$,$m$,$

$$p$,$ and $$t$),$ we will now create another program called eet. You can start by copying tee.c

to eet.c and updating your Makefile.

The program eet works much like tee, but instead the output it gives is reversed $($both on

stdout and the files specified via the command$-$line arguments$).$ Your task is to analyze

the logic and structure of the original tee.c program, and find the easiest way to have it

produce reversed output $($the solution is much simpler than you think$).$ Do not worry if the

reversed output starts with an empty line. This is normal $($it is the final new$-$line character

that went into stdin$).$