usr/src/usr.sbin/sendmail/src/useful.h

/*
**  USEFUL.H -- Some useful stuff.
**
**      @(#)useful.h    3.4     %G%
*/

# ifndef makedev
# include <sys/types.h>
# endif

/* support for bool type */
typedef char    bool;
# define TRUE   1
# define FALSE  0

# ifndef NULL
# define NULL   0
# endif NULL

/* bit hacking */
# define bitset(bit, word)      ((word) & (bit))

/* define the types of some common functions */
extern char     *strcpy();
extern char     *strcat();
extern char     *malloc();
extern char     *index(), *rindex();
extern int      errno;
extern char     *sprintf();
extern long     time();
extern char     *ctime();
# ifndef V6
extern char     *getenv();
# else V6
typedef char    *u_short;
typedef long    u_long;
typedef char    u_char;
typedef int     void;
# endif V6