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putgrent(3)

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



NAME
       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 func‐
       tion 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).

       allbox; lb lb  lb  l  l  l.   Interface Attribute Value  T{  putgrent()
       T}   Thread safety MT-Safe


CONFORMING TO
       This function is a GNU extension.

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

COLOPHON
       This  page  is  part of release 5.02 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/.



GNU                               2017-09-15                       PUTGRENT(3)
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