mirror of https://github.com/mkerrisk/man-pages
62 lines
1.4 KiB
Groff
62 lines
1.4 KiB
Groff
.\" Copyright 2003 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
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.\"
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.\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
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.\" Distributed under GPL
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.\" %%%LICENSE_END
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.\"
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.TH PUTGRENT 3 2017-09-15 "GNU" "Linux Programmer's Manual"
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.SH NAME
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putgrent \- write a group database entry to a file
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.SH SYNOPSIS
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.BR "#define _GNU_SOURCE" " /* See feature_test_macros(7) */"
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.br
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.B #include <grp.h>
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.PP
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.BI "int putgrent(const struct group *" grp ", FILE *" stream );
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.SH DESCRIPTION
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The
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.BR putgrent ()
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function is the counterpart for
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.BR fgetgrent (3).
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The function writes the content of the provided
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.IR "struct group"
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into the
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.IR stream .
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The list of group members must be NULL-terminated or NULL-initialized.
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.PP
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The
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.IR "struct group"
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is defined as follows:
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.PP
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.in +4n
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.EX
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struct group {
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char *gr_name; /* group name */
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char *gr_passwd; /* group password */
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gid_t gr_gid; /* group ID */
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char **gr_mem; /* group members */
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};
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.EE
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.in
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.SH RETURN VALUE
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The function returns zero on success, and a nonzero value on error.
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.SH ATTRIBUTES
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For an explanation of the terms used in this section, see
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.BR attributes (7).
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.TS
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allbox;
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lb lb lb
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l l l.
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Interface Attribute Value
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T{
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.BR putgrent ()
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T} Thread safety MT-Safe
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.TE
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.sp 1
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.SH CONFORMING TO
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This function is a GNU extension.
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.SH SEE ALSO
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.BR fgetgrent (3),
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.BR getgrent (3),
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.BR group (5)
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