From a94aff09bc3a36b7ebe6cdc90323f396fa2f78c8 Mon Sep 17 00:00:00 2001 From: Karl Palsson Date: Wed, 28 Sep 2016 16:32:39 +0000 Subject: enable loglevel setting via command line Currently the loglevel is hardcoded to LOG_WARNING, even though there is debug log messages. Allow setting the loglevel via cli option. Include basic help text because we're adding command line options. Signed-off-by: Karl Palsson --- src/odhcpd.c | 26 ++++++++++++++++++++++++-- 1 file changed, 24 insertions(+), 2 deletions(-) (limited to 'src/odhcpd.c') diff --git a/src/odhcpd.c b/src/odhcpd.c index 6f034bf..e83a700 100644 --- a/src/odhcpd.c +++ b/src/odhcpd.c @@ -54,11 +54,33 @@ static void sighandler(_unused int signal) uloop_end(); } +static void print_usage(const char *app) +{ + printf( + "== %s Usage ==\n\n" + " -h, --help Print this help\n" + " -l level Specify log level 0..7 (default %d)\n", + app, LOG_WARNING + ); +} -int main() +int main(int argc, char **argv) { openlog("odhcpd", LOG_PERROR | LOG_PID, LOG_DAEMON); - setlogmask(LOG_UPTO(LOG_WARNING)); + int opt; + int log_level = LOG_WARNING; + while ((opt = getopt(argc, argv, "hl:")) != -1) { + switch (opt) { + case 'h': + print_usage(argv[0]); + return 0; + case 'l': + log_level = atoi(optarg); + fprintf(stderr, "Log level set to %d\n", log_level); + break; + } + } + setlogmask(LOG_UPTO(log_level)); uloop_init(); if (getuid() != 0) { -- cgit v1.2.3