linux man page for putgrent

PUTGRENT(3)						     Linux Programmer's Manual						       PUTGRENT(3)

NAME
       putgrent - write a group database entry to a file

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 function 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 nonzero 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 3.27 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/.

GNU
								    2003-09-09							       PUTGRENT(3)