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Message queue

Any one help me as i am new to c and message q programming.
problem is not able to print the char pointer data in receive program of message queue. here are my programs
/****send.c****/

#include
#include
#include
#include
#include
#include

struct mebufmsg
{
long msgtype ;
char *msgtext;
int data ;
char ch ;
};

int main(void)
{
struct mebufmsg *tbuff;

tbuff = (struct mebufmsg*)malloc(sizeof(struct mebufmsg)) ;

tbuff->msgtext = (char *)malloc(12*sizeof(char));

tbuff->msgtype = 1 ;
tbuff->msgtext = "sainath" ;
tbuff->data = 10 ;
tbuff->ch = 'a';

int msgqid;
key_t kiy=123;

size_t size = (sizeof(struct mebufmsg) - sizeof(tbuff->msgtype)) ;

printf("%d
", size ) ;


if ((msgqid = msgget(kiy, 0644 | IPC_CREAT)) == -1)
{
perror("Call to msgget() is failed!");
exit(1);
}

if (msgsnd(msgqid,tbuff, size, 0) == -1)
{
perror("msgsnd");
}

return 0;
}

/****receive.c *****/

#include
#include
#include
#include
#include
#include

struct mebufmsg
{
long msgtype ;
char *msgtext ;
int data ;
char ch ;
};
int main(void)
{
struct mebufmsg buffr;
int msgqid;
key_t kiy=123;

size_t size = (sizeof(buffr) - sizeof(buffr.msgtype));

printf("%d
", size ) ;


if ((msgqid = msgget(kiy, 0644)) == -1)
{ /* Connecting to the queue */
perror("msgget() system functionfailed");
exit(1);
}


if (msgrcv(msgqid, &buffr, size , 0, 0) == -1)
{
perror("msgrcv");
exit(1);
}
printf("%ld
", buffr.msgtype);
printf("%s
", buffr.msgtext);
printf("%d
", buffr.data);
printf("%c
", buffr.ch);

return 0;
}

printing some junk value from buffr.msgtext but able all other values.

so give some sugessions to fetch the buffr.msgtext as sainath.

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