SYNOPSIS
       #define _GNU_SOURCE
       #include <grp.h>

       int putgrent(const struct group *grp, FILE *fp);

DESCRIPTION
       the putgrent() function is the counterpart for fgetgrent(3).  the func-
       tion writes the content of the provided  struct  group  into  the  file
       pointed to by fp.  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 non-zero value on error.

CONFORMING TO
       This function is a GNU extension.

SEE ALSO
       fgetgrent(3), getgrent(3), group(5), feature_test_macros(7)

COLOPHON
       This page is part of release 3.23 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/.