/*
	MALLOC DEMO #1 Illustrates:
		use of malloc function
		use of free function
*/

#include <stdlib.h>
#include <stdio.h>   /* input output */
#include <string.h>


#define  MAX_LEN  10

/*  M A I N  */

void fatal( char * errmsg);

int main( )
{
	char *word; /* string */


	word =  malloc( MAX_LEN * sizeof(char)  );
	if (word==NULL) /* ALWAYS CHECK FOR NULL */
	    fatal("malloc failed. Exiting Program.");

	printf("Enter a word (<10 chars): ");
	fgets(word, MAX_LEN, stdin); /* WARNING fgets vulnerable to truncation but not overflow */
	printf("you entered: %s\n", word);

	free( word );
	word=NULL; /* NULL'ing after free'ing is a good practice */

	return EXIT_SUCCESS; /* EXIT_SUCCESS is 0 in stdlib.h */
}

void fatal( char * errmsg)
{
	fprintf( stderr, "\n%s\n", errmsg );
	exit( EXIT_FAILURE );
}