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/*
* cmd_args.c = command-line argument processing
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "ntpd.h"
#include "ntp_stdlib.h"
#include "ntp_config.h"
#include "ntp_cmdargs.h"
#include "ntpd-opts.h"
/*
* Definitions of things either imported from or exported to outside
*/
extern char const *progname;
#ifdef HAVE_NETINFO
extern int check_netinfo;
#endif
/*
* getCmdOpts - apply most command line options
*
* A few options are examined earlier in ntpd.c ntpdmain() and
* ports/winnt/ntpd/ntservice.c main().
*/
void
getCmdOpts(
int argc,
char ** argv
)
{
extern const char *config_file;
int errflg;
/*
* Initialize, initialize
*/
errflg = 0;
if (ipv4_works && ipv6_works) {
if (HAVE_OPT( IPV4 ))
ipv6_works = 0;
else if (HAVE_OPT( IPV6 ))
ipv4_works = 0;
} else if (!ipv4_works && !ipv6_works) {
msyslog(LOG_ERR, "Neither IPv4 nor IPv6 networking detected, fatal.");
exit(1);
} else if (HAVE_OPT( IPV4 ) && !ipv4_works)
msyslog(LOG_WARNING, "-4/--ipv4 ignored, IPv4 networking not found.");
else if (HAVE_OPT( IPV6 ) && !ipv6_works)
msyslog(LOG_WARNING, "-6/--ipv6 ignored, IPv6 networking not found.");
if (HAVE_OPT( AUTHREQ ))
proto_config(PROTO_AUTHENTICATE, 1, 0., NULL);
else if (HAVE_OPT( AUTHNOREQ ))
proto_config(PROTO_AUTHENTICATE, 0, 0., NULL);
if (HAVE_OPT( BCASTSYNC ))
proto_config(PROTO_BROADCLIENT, 1, 0., NULL);
if (HAVE_OPT( CONFIGFILE )) {
config_file = OPT_ARG( CONFIGFILE );
#ifdef HAVE_NETINFO
check_netinfo = 0;
#endif
}
if (HAVE_OPT( DRIFTFILE ))
stats_config(STATS_FREQ_FILE, OPT_ARG( DRIFTFILE ));
if (HAVE_OPT( PANICGATE ))
allow_panic = TRUE;
if (HAVE_OPT( FORCE_STEP_ONCE ))
force_step_once = TRUE;
#ifdef HAVE_DROPROOT
if (HAVE_OPT( JAILDIR )) {
droproot = 1;
chrootdir = OPT_ARG( JAILDIR );
}
#endif
if (HAVE_OPT( KEYFILE ))
getauthkeys(OPT_ARG( KEYFILE ));
if (HAVE_OPT( PIDFILE ))
stats_config(STATS_PID_FILE, OPT_ARG( PIDFILE ));
if (HAVE_OPT( QUIT ))
mode_ntpdate = TRUE;
if (HAVE_OPT( PROPAGATIONDELAY ))
do {
double tmp;
const char *my_ntp_optarg = OPT_ARG( PROPAGATIONDELAY );
if (sscanf(my_ntp_optarg, "%lf", &tmp) != 1) {
msyslog(LOG_ERR,
"command line broadcast delay value %s undecodable",
my_ntp_optarg);
} else {
proto_config(PROTO_BROADDELAY, 0, tmp, NULL);
}
} while (0);
if (HAVE_OPT( STATSDIR ))
stats_config(STATS_STATSDIR, OPT_ARG( STATSDIR ));
if (HAVE_OPT( TRUSTEDKEY )) {
int ct = STACKCT_OPT( TRUSTEDKEY );
const char** pp = STACKLST_OPT( TRUSTEDKEY );
do {
u_long tkey;
const char* p = *pp++;
tkey = (int)atol(p);
if (tkey == 0 || tkey > NTP_MAXKEY) {
msyslog(LOG_ERR,
"command line trusted key %s is invalid",
p);
} else {
authtrust(tkey, 1);
}
} while (--ct > 0);
}
#ifdef HAVE_DROPROOT
if (HAVE_OPT( USER )) {
droproot = 1;
user = estrdup(OPT_ARG( USER ));
group = strrchr(user, ':');
if (group != NULL) {
size_t len;
*group++ = '\0'; /* get rid of the ':' */
len = group - user;
group = estrdup(group);
user = erealloc(user, len);
}
}
#endif
if (HAVE_OPT( VAR )) {
int ct;
const char ** pp;
const char * v_assign;
ct = STACKCT_OPT( VAR );
pp = STACKLST_OPT( VAR );
do {
v_assign = *pp++;
set_sys_var(v_assign, strlen(v_assign) + 1, RW);
} while (--ct > 0);
}
if (HAVE_OPT( DVAR )) {
int ct = STACKCT_OPT( DVAR );
const char** pp = STACKLST_OPT( DVAR );
do {
const char* my_ntp_optarg = *pp++;
set_sys_var(my_ntp_optarg, strlen(my_ntp_optarg)+1,
(u_short) (RW | DEF));
} while (--ct > 0);
}
if (HAVE_OPT( SLEW ))
loop_config(LOOP_MAX, 600);
if (HAVE_OPT( UPDATEINTERVAL )) {
long val = OPT_VALUE_UPDATEINTERVAL;
if (val >= 0)
interface_interval = val;
else {
fprintf(stderr,
"command line interface update interval %ld must not be negative\n",
val);
msyslog(LOG_ERR,
"command line interface update interval %ld must not be negative",
val);
errflg++;
}
}
/* save list of servers from cmd line for config_peers() use */
if (argc > 0) {
cmdline_server_count = argc;
cmdline_servers = argv;
}
/* display usage & exit with any option processing errors */
if (errflg)
optionUsage(&ntpdOptions, 2); /* does not return */
}
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