redhat man page for fgetgrent

FGETGRENT(3)						     Linux Programmer's Manual						      FGETGRENT(3)

NAME
       fgetgrent - get group file entry

SYNOPSIS
       #include <grp.h>
       #include <stdio.h>
       #include <sys/types.h>

       struct group *fgetgrent(FILE *stream);

DESCRIPTION
       The  fgetgrent()  function  returns  a  pointer to a structure containing the group information from the file stream.  The first time it is
       called it returns the first entry; thereafter, it returns successive entries.  The file stream must have the same format as /etc/group.

       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 fgetgrent() 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.

CONFORMING TO
       SVID 3

SEE ALSO
       getgrnam(3), getgrgid(3), getgrent(3), setgrent(3), endgrent(3)

GNU
								    1993-04-04							      FGETGRENT(3)