In C$,$ no file pointers

Skeleton of code:

#include

#include

#include

$/*$ Problem $1*/$

$/*$ Global vairables that represent if a child's handshake

has arrived. These globals also represent whether a

guess is less than $($sgn$1)$ or greater than $($sgn$2)$ the

referee's value $*/$

static int sgn$1$;

static int sgn$2$;

int checkError$($int val, const char $*$msg$)$

$\{$

if $($val $==-1)$

$\{$

if $($errno $==$ EINTR$)$ return val;

perror$($msg$)$;

exit$($EXIT$\_$FAILURE$)$;

$\}$

return val;

$\}$

void rentHandler$($int sig$)$

$\{$

$/*$ Problem $2*/$

$\}$

void childHandler$($int sig$)$

$\{$

$/*$ Problem $3*/$

$\}$

int rngRand$($int first, int last$)$

$\{$

int rng $=($last $-$ first$)+1$;

double perc $=(($double$)$ rand$())/((($double$)$ RAND$\_$MAX$)+1)$;

int offst $=$ rng $*$ perc;

return first $+$ offst;

$\}$

int child$1($pid$\_$t rent$)$

$\{$

$/*$ Problem $4*/$

$\}$

int child$2($pid$\_$t rent$)$

$\{$

$/*$ Problem $5*/$

$\}$

void rentPause$($int x$)$

$\{$

while $(1)$

$\{$

if $($sgn$1$ && sgn$2)$ break;

$//$if $($sgn$1)$ break;

pause$()$;

$\}$

sgn$1=$ sgn$2=0$;

$\}$

int parent$($pid$\_$t $*$child$)$

$\{$

$/*$ Problem $6*/$

$\}$

int main $($int argc, char $*$argv$[])$

$\{$

$/*$ Problem $7*/$

$\}$