extern struct passwd * getpwent(void);
extern struct passwd * getpwnam(const char *);
extern struct passwd * getpwuid(uid_t);
-extern void getrlimit(int, struct rlimit *);
+extern int getrlimit(int, struct rlimit *);
extern int getrnge(char *);
extern struct rpcent * getrpcbyname(const char *);
extern struct rpcent * getrpcbynumber(int);
extern struct rpcent * getrpcent(void);
-extern void getrusage(int, struct rusage *);
+extern int getrusage(int, struct rusage *);
extern char * gets(char *);
extern struct servent * getservbyname(/* ??? */);
extern struct servent * getservbyport(/* ??? */);
extern void setpwent(void);
extern int setregid(gid_t, gid_t);
extern int setreuid(uid_t, uid_t);
-extern void setrlimit(int, struct rlimit *);
+extern int setrlimit(int, struct rlimit *);
extern int setrpcent(int);
extern pid_t setsid(void);
extern void setspent(void);