1 .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
3 .\" %%%LICENSE_START(VERBATIM)
4 .\" Permission is granted to make and distribute verbatim copies of this
5 .\" manual provided the copyright notice and this permission notice are
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8 .\" Permission is granted to copy and distribute modified versions of this
9 .\" manual under the conditions for verbatim copying, provided that the
10 .\" entire resulting derived work is distributed under the terms of a
11 .\" permission notice identical to this one.
13 .\" Since the Linux kernel and libraries are constantly changing, this
14 .\" manual page may be incorrect or out-of-date. The author(s) assume no
15 .\" responsibility for errors or omissions, or for damages resulting from
16 .\" the use of the information contained herein. The author(s) may not
17 .\" have taken the same level of care in the production of this manual,
18 .\" which is licensed free of charge, as they might when working
21 .\" Formatted or processed versions of this manual, if unaccompanied by
22 .\" the source, must acknowledge the copyright and authors of this work.
25 .\" References consulted:
26 .\" Linux libc source code
27 .\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
29 .\" Modified Sat Jul 24 19:38:44 1993 by Rik Faith (faith@cs.unc.edu)
30 .TH FGETGRENT 3 2014-08-19 "GNU" "Linux Programmer's Manual"
32 fgetgrent \- get group file entry
36 .B #include <sys/types.h>
39 .BI "struct group *fgetgrent(FILE *" stream );
43 Feature Test Macro Requirements for glibc (see
44 .BR feature_test_macros (7)):
52 function returns a pointer to a structure containing
53 the group information from the file referred to by
55 The first time it is called
56 it returns the first entry; thereafter, it returns successive entries.
57 The file referred to by
59 must have the same format as
64 The \fIgroup\fP structure is defined in \fI<grp.h>\fP as follows:
69 char *gr_name; /* group name */
70 char *gr_passwd; /* group password */
71 gid_t gr_gid; /* group ID */
72 char **gr_mem; /* NULL-terminated array of pointers
73 to names of group members */
80 function returns a pointer to a
83 or NULL if there are no more entries or an error occurs.
84 In the event of an error,
86 is set to indicate the cause.
90 Insufficient memory to allocate
106 This page is part of release 3.78 of the Linux
109 A description of the project,
110 information about reporting bugs,
111 and the latest version of this page,
113 \%http://www.kernel.org/doc/man\-pages/.