NAME¶

fgetgrent - get group file entry

SYNOPSIS¶

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

struct group *fgetgrent(FILE *stream);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

fgetgrent(): _SVID_SOURCE

DESCRIPTION¶

The fgetgrent() function returns a pointer to a structure containing the group information from the file referred to by stream. The first time it is called it returns the first entry; thereafter, it returns successive entries. The file referred to by stream must have the same format as /etc/group (see group(5)).

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 a pointer to a group structure, or NULL if there are no more entries or an error occurs.

ERRORS¶

ENOMEM

Insufficient memory to allocate group structure.

CONFORMING TO¶

SVr4.

SEE ALSO¶

endgrent(3), fgetgrent_r(3), fopen(3), getgrent(3), getgrgid(3), getgrnam(3), putgrent(3), setgrent(3), group(5)

COLOPHON¶

This page is part of release 3.22 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.