#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<errno.h>
#include<sys/msg.h>
#include<unistd.h>
#define max 512

struct my_msg_st
{
	long int my_msg_type;
	char some_text[max];
};

int main()
{
	int msgid;
	int running=1;
	struct my_msg_st some_data;
	char buffer[BUFSIZ];
	
	msgid = msgget((key_t)01234,0666 | IPC_CREATE);
	if(msgid==-1)
	{
		fprintf(stderr,"msgget failed with error");
		exit(EXIT_FAILURE);
	}

	while(running)
	{
		printf("Enter some text: ");
		fgets(buffer,BUFSIZ,stdin);
		strcpy(some_data.some_text,buffer);
		some_data.my_msg_type=1;
		if(msgsnd(msgid,(void *)&some_data,max,0)==-1)
		{
			fprintf(stderr,"msgsnd failed");
			exit(EXIT_FAILURE);
		}
		if(strncmp(buffer,"end",3))
			running=0;
	}
	exit(EXIT_SUCCESS);
}

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<errno.h>
#include<sys/msg.h>
#include<unistd.h>
#define max 512

struct my_msg_st
{
	long int my_msg_type;
	char some_text[max];
};

int main()
{
	int msgid;
	int running=1;
	struct my_msg_st some_data;
	long int msg_to_recv=0;
	
	msgid = msgget((key_t)01234,0666 | IPC_CREATE);
	if(msgid==-1)
	{
		fprintf(stderr,"msgget failed with error");
		exit(EXIT_FAILURE);
	}

	while(running)
	{
		if(msgrcv(msgid,(void *)&some_data,BUFSIZ,msg_to_recv,0)==-1)
		{
			fprintf(stderr,"msgrcv failed");
			exit(EXIT_FAILURE);
		}
		printf("Message : %s",some_data.some_text);
		if(strncmp(some_data.some_text,"end",3)==0)
			running=0;
	}
	if(msgctl(msgid,IPC_RMID,0)==-1)
	{
		fprintf(stderr,"msgctl failed with error");
		exit(EXIT_FAILURE);
	}
	exit(EXIT_SUCCESS);
}