FGETGRENT

Section: Linux Programmer's Manual (3 )
Updated: 1993-04-04
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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

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