GNU
2017-09-15
manpages-dev
Manual pages about using GNU/Linux for development
man-pages
Linux kernel and C library user-space interface documentation
NAME
putgrent - write a group database entry to a file
SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <grp.h>
#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 */ };
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 |
| Thread safety | MT-Safe |
CONFORMING TO
This function is a GNU extension.
