int getppid (void);
char * getlogin (void);
char * cuserid (char * s);
-unsigned getuid (void);
-unsigned geteuid (void);
unsigned getegid (void);
unsigned getgid (void);
int setuid (unsigned uid);
int setregid (unsigned rgid, unsigned gid);
char * getpass (const char * prompt);
int fchown (int fd, unsigned uid, unsigned gid);
-int mkostemp (char * template, int flags);
/* redirect or undo interceptions created by config.h */
#undef access