11 #include <bits/alltypes.h>
21 struct group *getgrgid(gid_t);
22 struct group *getgrnam(const char *);
24 int getgrgid_r(gid_t, struct group *, char *, size_t, struct group **);
25 int getgrnam_r(const char *, struct group *, char *, size_t, struct group **);
27 struct group *getgrent(void);