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syslogd: add option to suppress logging of messages lower than level N (-n N)

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This commit is contained in:
Denis Vlasenko 2006-09-30 19:17:40 +00:00
parent 39d551fd15
commit 1decd0e529
2 changed files with 18 additions and 5 deletions
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3
include/usage.h
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@ -2780,7 +2780,8 @@ USE_FEATURE_START_STOP_DAEMON_FANCY( \
"\t-m MIN\t\tMinutes between MARK lines (default=20, 0=off)\n" \
"\t-n\t\tRun as a foreground process\n" \
"\t-O FILE\t\tUse an alternate log file (default=/var/log/messages)\n" \
"\t-S\t\tMake logging output smaller." \
"\t-l n\tSets the local log level of messages to n\n" \
"\t-S\t\tMake logging output smaller" \
USE_FEATURE_ROTATE_LOGFILE( \
"\n\t-s SIZE\t\tMax size (KB) before rotate (default=200KB, 0=off)\n" \
"\t-b NUM\t\tNumber of rotated logs to keep (default=1, max=99, 0=purge)") \

12
sysklogd/syslogd.c
View File

@ -42,6 +42,9 @@ static int logFileRotate = 1;
/* interval between marks in seconds */
static int MarkInterval = 20 * 60;
/* level of messages to be locally logged */
static int logLevel = 8;
/* localhost's name */
static char LocalHostName[64];
@ -413,11 +416,13 @@ retry:
#endif
{
/* now spew out the message to wherever it is supposed to go */
if (pri == 0 || LOG_PRI(pri) < logLevel) {
if (opts & SYSLOG_OPT_small)
message("%s %s\n", timestamp, msg);
else
message("%s %s %s %s\n", timestamp, LocalHostName, res, msg);
}
}
}
static void quit_signal(int sig)
@ -581,6 +586,13 @@ int syslogd_main(int argc, char **argv)
case 'O':
logFilePath = optarg;
break;
case 'l':
logLevel = atoi(optarg);
/* Valid levels are between 1 and 8 */
if (logLevel < 1 || logLevel > 8) {
bb_show_usage();
}
break;
#ifdef CONFIG_FEATURE_ROTATE_LOGFILE
case 's':
logFileSize = atoi(optarg) * 1024;