65 lines
1.2 KiB
C
65 lines
1.2 KiB
C
/* vi: set sw=4 ts=4: */
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/* common.c
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*
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* Functions for debugging and logging as well as some other
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* simple helper functions.
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*
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* Russ Dill <Russ.Dill@asu.edu> 2001-2003
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* Rewritten by Vladimir Oleynik <dzo@simtreas.ru> (C) 2003
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include <syslog.h>
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#include "common.h"
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long uptime(void)
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{
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struct sysinfo info;
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sysinfo(&info);
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return info.uptime;
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}
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#if ENABLE_FEATURE_PIDFILE
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static const char *saved_pidfile;
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static void pidfile_delete(void)
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{
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if (saved_pidfile)
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remove_pidfile(saved_pidfile);
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}
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#endif
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static void create_pidfile(const char *pidfile)
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{
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if (!pidfile)
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return;
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if (!write_pidfile(pidfile)) {
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bb_perror_msg("cannot create pidfile %s", pidfile);
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return;
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}
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#if ENABLE_FEATURE_PIDFILE
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/* lockf(pid_fd, F_LOCK, 0); */
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if (!saved_pidfile)
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atexit(pidfile_delete);
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saved_pidfile = pidfile;
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#endif
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}
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void udhcp_make_pidfile(const char *pidfile)
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{
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/* Make sure fd 0,1,2 are open */
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bb_sanitize_stdio();
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/* Equivalent of doing a fflush after every \n */
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setlinebuf(stdout);
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/* Create pidfile */
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create_pidfile(pidfile);
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bb_info_msg("%s (v%s) started", applet_name, BB_VER);
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}
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