#include <stdlib.h>#include <stdio.h>#include <string.h>#include <errno.h>#include <unistd.h>#include <sys/msg.h>#define MAX_TEXT 512struct my_msg_st {    long int my_msg_type;    char some_text[MAX_TEXT];};int main(){    int running = 1;    struct my_msg_st some_data;    int msgid;        char buffer[BUFSIZ];msgid = msgget((key_t)1365, 0666 | IPC_CREAT);    if (msgid == -1) {        fprintf(stderr, "msgget failed with error: %d\n", msgid ),         exit(EXIT_FAILURE);    }    while(running) {            printf("Enter some text: ");        	    fgets(buffer, BUFSIZ, stdin);        		some_data.my_msg_type = 1;        		strcpy(some_data.some_text, buffer);            if (msgsnd(msgid, (void *)&some_data, MAX_TEXT, 0) == -1) {                fprintf(stderr, "msgsnd failed\n");                exit(EXIT_FAILURE);        }            if (strncmp(buffer, "end", 3) == 0) {                running = 0;            }    }     exit(EXIT_SUCCESS);}