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Manual Reference Pages  - FGETGRENT (3)

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fgetgrent - get group file entry

CONTENTS

Synopsis
Description
Errors

#include <stdio.h> 

#include <sys/types.h> 

#include <grp.h> 



struct group *fgetgrent(FILE *stream); 

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 */
};

The fgetgrent() function returns the group information structure, or NULL if there are no more entries or an error occurs.

ENOMEM	Insufficient memory to allocate group information structure.

SVID 3

endgrent(3), fgetgrent_r(3), getgrent(3), getgrgid(3), getgrnam(3), setgrent(3)

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