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

#define MESLENGTH 18

char *msg = "bericht over pipe";

int main(void){
   char inpbuf[MESLENGTH];
   int p[2]; /* prepare for pipe */
   int pid;
   if(pipe(p) == -1){
	fprintf(stderr,"pipe creation failed\n");
        exit(1);
   }

   switch(pid = fork()){
   case -1:
	fprintf(stderr,"cannot fork\n");
        exit(2);
   case 0:
        write(p[1], msg, MESLENGTH);
        break;
   default:
        read(p[0], inpbuf, MESLENGTH);
        printf("Read from pipe: %s\n", inpbuf);
	wait(NULL);
   }
   exit(0);
}