General :: Sending Signal From Child Process To Parent Process?

Code:

#include <stdio.h>
#include <unistd.h>
#include <signal.h>

[code]....

Description of what the code does or what i intended to do:

1. Created a child process from parent process using 'fork()'

2. Sent a signal 'SIGALRM' from child process to parent process using 'sigqueue' function.

(The Third parameter of 'siqueue' function contains the message (message msg) which the child process wants to send to the parent process.'msg' is a stucture instance containing a) pid of child and b) string) 5. Print the 'msg' sent by child process inside the signal handler function 'sig_action_function' of the parent process I am getting some junk value when this line is executed

Code:

printf("%d
",msg->cpid);

I expected to get the pid of child process, which the child process sent to parent process through the signal.