gid_t getegid(void);
int getgroups(int, gid_t []);
int setuid(uid_t);
-int setreuid(uid_t, uid_t);
int seteuid(uid_t);
int setgid(gid_t);
-int setregid(gid_t, gid_t);
int setegid(gid_t);
char *getlogin(void);
long sysconf(int);
size_t confstr(int, char *, size_t);
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#define F_ULOCK 0
#define F_LOCK 1
#define F_TLOCK 2
#define F_TEST 3
-
-#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+int setreuid(uid_t, uid_t);
+int setregid(gid_t, gid_t);
int lockf(int, int, off_t);
long gethostid(void);
int nice(int);
long syscall(long, ...);
int execvpe(const char *, char *const [], char *const []);
int issetugid(void);
+int getentropy(void *, size_t);
#endif
#ifdef _GNU_SOURCE
#define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS 1145
#define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS 1146
#define _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS 1147
+#define _CS_V6_ENV 1148
+#define _CS_V7_ENV 1149
#ifdef __cplusplus
}