17 #include <bits/alltypes.h>
26 struct group
*getgrgid(gid_t
);
27 struct group
*getgrnam(const char *);
29 int getgrgid_r(gid_t
, struct group
*, char *, size_t, struct group
**);
30 int getgrnam_r(const char *, struct group
*, char *, size_t, struct group
**);
32 struct group
*getgrent(void);
37 struct group
*fgetgrent(FILE *stream
);
38 int putgrent(const struct group
*, FILE *);
41 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
42 int getgrouplist(const char *, gid_t
, gid_t
*, int *);
43 int setgroups(size_t, const gid_t
*);
44 int initgroups(const char *, gid_t
);