$//$ used to read each charcter

char $*$freads$($char $*$str$,$ int n$,$ FILE $*$stream$)\{$

if $($n $<=0||!$str $||!$stream$)\{$

return NULL; $//$ Handle edge cases

$\}$

int i $=0$;

int ch;

int newline$\_$found $=0$;

while $($i $<$ n $-1)\{$

ch $=$ fgetc$($stream$)$;

if $($ch $==$ EOF$)\{$

if $($i $==0)\{$

return NULL; $//$ No characters read before EOF

$\}$

break;

$\}$

str$[$i$++]=($char$)$ch;

if $($ch $==\text{'}$

$\text{'})\{$

newline$\_$found $=1$;

break;

$\}$

$\}$

$//$ Handle potential line overflow

if $(!$newline$\_$found && ch $==$ EOF$)\{$

str$[$i$]=\text{'}\backslash 0\text{'}$; $//$ Null$-$terminate even if overflow occurred

$\}$ else $\{$

str$[$i$]=\text{'}\backslash 0\text{'}$;

$\}$

return str;

$\}$