/* vi: set sw=4 ts=4: */
/* common.c
- *
- * Functions for debugging and logging as well as some other
- * simple helper functions.
- *
- * Russ Dill <Russ.Dill@asu.edu> 2001-2003
- * Rewritten by Vladimir Oleynik <dzo@simtreas.ru> (C) 2003
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <paths.h>
-#include <sys/socket.h>
-#include <stdarg.h>
-
#include "common.h"
-#include "pidfile.h"
-
-
-static int daemonized;
-
-long uptime(void)
-{
- struct sysinfo info;
- sysinfo(&info);
- return info.uptime;
-}
-
-
-/*
- * This function makes sure our first socket calls
- * aren't going to fd 1 (printf badness...) and are
- * not later closed by daemon()
- */
-static inline void sanitize_fds(void)
-{
- int zero;
- if ((zero = open(bb_dev_null, O_RDWR, 0)) < 0)
- return;
- while (zero < 3)
- zero = dup(zero);
- close(zero);
-}
-
-
-void udhcp_background(const char *pidfile)
-{
-#ifdef __uClinux__
- LOG(LOG_ERR, "Cannot background in uclinux (yet)");
-#else /* __uClinux__ */
- int pid_fd;
-
- /* hold lock during fork. */
- pid_fd = pidfile_acquire(pidfile);
- xdaemon(0, 0);
- daemonized++;
- pidfile_write_release(pid_fd);
-#endif /* __uClinux__ */
-}
-
-
-#ifdef CONFIG_FEATURE_UDHCP_SYSLOG
-void udhcp_logging(int level, const char *fmt, ...)
-{
- va_list p;
- va_list p2;
-
- va_start(p, fmt);
- __va_copy(p2, p);
- if (!daemonized) {
- vprintf(fmt, p);
- putchar('\n');
- }
- vsyslog(level, fmt, p2);
- va_end(p);
-}
-
-#else
-
-
-static char *syslog_level_msg[] = {
- [LOG_EMERG] = "EMERGENCY!",
- [LOG_ALERT] = "ALERT!",
- [LOG_CRIT] = "critical!",
- [LOG_WARNING] = "warning",
- [LOG_ERR] = "error",
- [LOG_INFO] = "info",
- [LOG_DEBUG] = "debug"
+const uint8_t MAC_BCAST_ADDR[6] ALIGN2 = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};
-
-
-void udhcp_logging(int level, const char *fmt, ...)
-{
- va_list p;
-
- va_start(p, fmt);
- if (!daemonized) {
- printf("%s, ", syslog_level_msg[level]);
- vprintf(fmt, p);
- putchar('\n');
- }
- va_end(p);
-}
-#endif
-
-
-void udhcp_start_log_and_pid(const char *client_server, const char *pidfile)
-{
- int pid_fd;
-
- /* Make sure our syslog fd isn't overwritten */
- sanitize_fds();
-
- /* do some other misc startup stuff while we are here to save bytes */
- pid_fd = pidfile_acquire(pidfile);
- pidfile_write_release(pid_fd);
-
- /* equivelent of doing a fflush after every \n */
- setlinebuf(stdout);
-
- if (ENABLE_FEATURE_UDHCP_SYSLOG)
- openlog(client_server, LOG_PID | LOG_CONS, LOG_LOCAL0);
-
- udhcp_logging(LOG_INFO, "%s (v%s) started", client_server, BB_VER);
-}