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int level; /* fill/empty level of buffer */
unsigned flags; /* File status flags */
char fd; /* File descriptor */
unsigned char hold; /* Ungetc char if no buffer */
int bsize; /* Buffer size */
unsigned char _FAR *buffer; /* Data transfer buffer */
unsigned char _FAR *curp; /* Current active pointer */
unsigned istemp; /* Temporary file indicator */
short token; /* Used for validity checking */
} FILE; /* This is the FILE object */
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#include <stdlib.h>
#include "addr.h"
int main()
{
int flag=1;
while(flag)
{
switch(choose_menu())
{
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