mirror of
https://github.com/troglobit/finit.git
synced 2026-10-02 05:52:48 +07:00
Joachim Nilsson
eeb13dba74
Starting in debug mode and disabling debug at runtime did not exhibit the same behavior as if starting in normal mode and toggling debug mode at runtime. This patch adds toggling of silent mode (progress output) to runtime debug toggling. Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
183 lines
3.5 KiB
C
183 lines
3.5 KiB
C
/* Finit daemon log functions
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*
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* Copyright (c) 2008-2017 Joachim Nilsson <troglobit@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "config.h"
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#include <sched.h> /* sched_yield() */
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#include <stdio.h>
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#include <stdarg.h>
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#include <lite/lite.h>
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#include "finit.h"
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#include "log.h"
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#include "util.h"
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static int up = 0;
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static int debug = 0;
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static int silent = SILENT_MODE; /* Completely silent, including boot */
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static int loglevel = LOG_NOTICE;
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static void muffler(void)
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{
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silent = SILENT_MODE;
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/* User override from kernel cmdline */
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if (splash)
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silent = 0;
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}
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void log_init(int dbg)
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{
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if (dbg)
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debug = 1;
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if (debug)
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loglevel = LOG_DEBUG;
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else
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loglevel = LOG_NOTICE;
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muffler();
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}
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/* If we enabled terse mode at boot, restore to previous setting at shutdown */
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void log_exit(void)
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{
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muffler();
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if (!silent) {
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sched_yield();
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fputs("\n", stderr);
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}
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/*
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* Unless in debug mode at shutdown, Reinitialize screen,
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* terminal may have been resized at runtime
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*/
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if (debug)
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screen_exit();
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else
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screen_init();
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}
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void log_open(void)
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{
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int opts = LOG_PID;
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closelog();
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if (debug)
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opts |= LOG_PERROR; /* LOG_CONS | */
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openlog("finit", opts, LOG_DAEMON);
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setlogmask(LOG_UPTO(loglevel));
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up = 1;
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}
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void log_silent(void)
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{
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if (debug)
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silent = 0;
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else
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silent = 1;
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}
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int log_is_silent(void)
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{
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return silent;
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}
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/* Toggle debug mode */
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void log_debug(void)
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{
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debug = !debug;
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if (debug) {
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silent = 0;
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loglevel = LOG_DEBUG;
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screen_exit();
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} else {
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silent = SILENT_MODE;
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loglevel = LOG_NOTICE;
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screen_init();
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}
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log_open();
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/* Also toggle silent mode (progress) */
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log_silent();
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logit(LOG_NOTICE, "Debug mode %s", debug ? "enabled" : "disabled");
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}
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int log_is_debug(void)
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{
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return debug;
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}
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/*
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* Log to /dev/kmsg until syslogd has started, then openlog()
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* and continue logging as a regular daemon.
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*/
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void logit(int prio, const char *fmt, ...)
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{
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FILE *fp;
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va_list ap;
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va_start(ap, fmt);
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if (up || fexist("/dev/log")) {
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if (!up)
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log_open();
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vsyslog(prio, fmt, ap);
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goto done;
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}
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if (!debug && prio > loglevel)
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goto done;
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fp = fopen("/dev/kmsg", "w");
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if (!fp) {
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vfprintf(stderr, fmt, ap);
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goto done;
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}
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fprintf(fp, "<%d>finit[1]:", LOG_DAEMON | prio);
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vfprintf(fp, fmt, ap);
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fclose(fp);
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if (debug) {
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va_end(ap);
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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}
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done:
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va_end(ap);
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}
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/**
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* Local Variables:
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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