putgrent — write a group database entry to a file
Synopsis
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <grp.h>
int putgrent(const struct group *grp, FILE *stream);
Description
The putgrent() function is the counterpart for fgetgrent(3). The function writes the content of the provided struct group into the stream. The list of group members must be NULL-terminated or NULL-initialized.
The struct group is defined 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 function returns zero on success, and a nonzero value on error.
Attributes
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
---|---|---|
putgrent() | Thread safety | MT-Safe |
Conforming to
This function is a GNU extension.
See Also
Colophon
This page is part of release 5.04 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Referenced By
fgetgrent(3), getgrent(3), getgrent_r(3).