endgrent
Hurricane Electric Internet Services
NAME
getgrent, setgrent, endgrent - get group file entry
SYNOPSIS
#include <grp.h>
#include <sys/types.h>
struct group *getgrent(void);
void setgrent(void);
void endgrent(void);
DESCRIPTION
The getgrent() function returns a pointer to a structure
containing the group information from /etc/group. The
first time it is called it returns the first entry; there-
after, it returns successive entries.
The setgrent() function rewinds the file pointer to the
beginning of the /etc/group file.
The endgrent() function closes the /etc/group file.
The group structure is defined in <grp.h> as follows:
struct group {
char *gr_name; /* group name */
char *gr_passwd; /* group password */
gid_t gr_gid; /* group id */
char **gr_mem; /* group members */
};
RETURN VALUE
The getgrent() function returns the group information
structure, or NULL if there are no more entries or an
error occurs.
ERRORS
ENOMEM Insufficient memory to allocate group information
structure.
FILES
/etc/groupgroup database file
CONFORMING TO
SVID 3, BSD 4.3
SEE ALSO
fgetgrent(3), getgrnam(3), getgrgid(3)
Hurricane Electric Internet Services
Copyright (C) 1998
Hurricane Electric.
All Rights Reserved.