diff options
Diffstat (limited to 'update.c')
-rw-r--r-- | update.c | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/update.c b/update.c deleted file mode 100644 index 27a04dd..0000000 --- a/update.c +++ /dev/null @@ -1,112 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * Mini update implementation for busybox; much pasted from update-2.11 - * - * - * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>. - * Copyright (c) 1996, 1997, 1999 Torsten Poulin. - * Copyright (c) 2000 by Karl M. Hegbloom <karlheg@debian.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program 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 - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -/* - * Note: This program is only necessary if you are running a 2.0.x (or - * earlier) kernel. 2.2.x and higher flush filesystem buffers automatically. - */ - -#include <sys/param.h> -#include <sys/syslog.h> -#include <unistd.h> /* for getopt() */ -#include <stdlib.h> - -#if __GNU_LIBRARY__ > 5 - #include <sys/kdaemon.h> -#else - extern int bdflush (int func, long int data); -#endif - -#include "busybox.h" - -static unsigned int sync_duration = 30; -static unsigned int flush_duration = 5; -static int use_sync = 0; - -extern int update_main(int argc, char **argv) -{ - int pid; - int opt; - - while ((opt = getopt(argc, argv, "Ss:f:")) > 0) { - switch (opt) { - case 'S': - use_sync = 1; - break; - case 's': - sync_duration = atoi(optarg); - break; - case 'f': - flush_duration = atoi(optarg); - break; - default: - show_usage(); - } - } - - if (daemon(0, 1) < 0) - perror_msg_and_die("daemon"); - -#ifdef OPEN_MAX - for (pid = 0; pid < OPEN_MAX; pid++) close(pid); -#else - /* glibc 2.1.92 requires using sysconf(_SC_OPEN_MAX) */ - for (pid = 0; pid < sysconf(_SC_OPEN_MAX); pid++) close(pid); -#endif - - /* This is no longer necessary since 1.3.5x, but it will harmlessly - * exit if that is the case. - */ - - /* set the program name that will show up in a 'ps' listing */ - argv[0] = "bdflush (update)"; - argv[1] = NULL; - argv[2] = NULL; - for (;;) { - if (use_sync) { - sleep(sync_duration); - sync(); - } else { - sleep(flush_duration); - if (bdflush(1, 0) < 0) { - openlog("update", LOG_CONS, LOG_DAEMON); - syslog(LOG_INFO, - "This kernel does not need update(8). Exiting."); - closelog(); - return EXIT_SUCCESS; - } - } - } - - return EXIT_SUCCESS; -} - -/* -Local Variables: -c-file-style: "linux" -c-basic-offset: 4 -tab-width: 4 -End: -*/ |