diff options
Diffstat (limited to 'login/utmp_db.c')
-rw-r--r-- | login/utmp_db.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/login/utmp_db.c b/login/utmp_db.c new file mode 100644 index 0000000000..2c5baf6592 --- /dev/null +++ b/login/utmp_db.c @@ -0,0 +1,102 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com> + and Paul Janzen <pcj@primenet.com>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <assert.h> +#include <db.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <utmp.h> +#include <sys/stat.h> + +#include "utmp-private.h" + + +/* This is the default name. */ +static const char default_file_name[] = _PATH_UTMP_DB; + +/* Current file name. */ +static const char *file_name = (const char *) default_file_name; + +/* Descriptor for database. */ +static DB *db_fd; +static char last_date[16]; + + +/* Our local functions. */ +static int setutent_db (int reset); +static void endutent_db (void); +static int utmpname_db (const char *name); + + +/* The jump table for the local functions. */ +struct utfuncs __libc_utmp_db_functions = +{ + setutent_db, + NULL, + NULL, + NULL, + NULL, + endutent_db, + utmpname_db +}; + + +static int +setutent_db (int reset) +{ + return 0; +} + + +static void +endutent_db (void) +{ +} + + +static int +utmpname_db (const char *name) +{ + if (strcmp (name, file_name) != 0) + { + if (strcmp (name, default_file_name) == 0) + { + if (file_name != default_file_name) + free ((char *) file_name); + + file_name = default_file_name; + } + else + { + char *new_name = __strdup (name); + if (new_name == NULL) + /* Out of memory. */ + return -1; + + if (file_name != default_file_name) + free ((char *) file_name); + + file_name = new_name; + } + } + return 0; +} |