unbound.c File Reference

Main program to start the DNS resolver daemon. More...

#include "config.h"
#include <sys/time.h>
#include "util/log.h"
#include "daemon/daemon.h"
#include "daemon/remote.h"
#include "util/config_file.h"
#include "util/storage/slabhash.h"
#include "services/listen_dnsport.h"
#include "services/cache/rrset.h"
#include "services/cache/infra.h"
#include "util/fptr_wlist.h"
#include "util/data/msgreply.h"
#include "util/module.h"
#include "util/net_help.h"
#include "util/ub_event.h"
#include <signal.h>
#include <fcntl.h>
#include <openssl/crypto.h>

Functions
static void	usage (void)
	print usage. More...
int	replay_var_compare (const void *ATTR_UNUSED(a), const void *ATTR_UNUSED(b))
static void	checkrlimits (struct config_file *cfg)
	check file descriptor count
static void	log_ident_set_fromdefault (struct config_file *cfg, const char *log_default_identity)
	set default logfile identity based on value from argv[0] at startup
static void	apply_settings (struct daemon *daemon, struct config_file *cfg, int cmdline_verbose, int debug_mode, const char *log_default_identity)
	set verbosity, check rlimits, cache settings
static void	detach (void)
	detach from command line
static void	perform_setup (struct daemon *daemon, struct config_file *cfg, int debug_mode, const char **cfgfile, int need_pidfile)
	daemonize, drop user privileges and chroot if needed
static void	run_daemon (const char *cfgfile, int cmdline_verbose, int debug_mode, const char *log_default_identity, int need_pidfile)
	Run the daemon. More...
int	main (int argc, char *argv[])
	main program. More...

Variables
int	optind
	getopt global, in case header files fail to declare it. More...
char *	optarg
	getopt global, in case header files fail to declare it. More...

Detailed Description

Main program to start the DNS resolver daemon.

Function Documentation

usage()

static void usage ( void  )

static

print usage.

References module_list_avail(), ub_default_event_base(), ub_event_base_free(), and ub_get_event_sys().

Referenced by main().

run_daemon()

static void run_daemon ( const char *  cfgfile, int  cmdline_verbose, int  debug_mode, const char *  log_default_identity, int  need_pidfile  )

static

Run the daemon.

Parameters

cfgfile	the config file name.
cmdline_verbose	verbosity resulting from commandline -v. These increase verbosity as specified in the config file.
debug_mode	if set, do not daemonize.
log_default_identity	Default identity to report in logs
need_pidfile	if false, no pidfile is checked or created.

References daemon_init().

main()

int main	(	int	argc,
		char *	argv[]
	)

main program.

Set options given commandline arguments.

Parameters

argc	number of commandline arguments.
argv	array of commandline arguments.

Returns

: exit status of the program.

References log_ident_set(), log_init(), optarg, optind, usage(), and verbosity.

Variable Documentation

optind

int optind

getopt global, in case header files fail to declare it.

Referenced by main().

optarg

char* optarg

getopt global, in case header files fail to declare it.

Referenced by main().