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#ifndef _GRP_H
#define _GRP_H
#include <sys/cdefs.h>
#include <sys/types.h>
struct group
{
char *gr_name; /* Group name. */
char *gr_passwd; /* Password. */
gid_t gr_gid; /* Group ID. */
char **gr_mem; /* Member list. */
};
extern struct group *getgrgid (gid_t uid) __THROW;
extern struct group *getgrnam (const char *name) __THROW;
extern struct group *getgrent(void) __THROW;
extern void setgrent(void) __THROW;
extern void endgrent(void) __THROW;
extern int setgroups(size_t n, const gid_t *groups) __THROW;
extern int initgroups(const char *user, gid_t group) __THROW;
#endif
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