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add --ip-version option to force either IPv4 or IPv6 analysis

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Proposed-by: Jeff Balley <jeffrey.bailey@bt.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This commit is contained in:
Sami Kerola 2017-09-09 10:09:35 +01:00
parent b9cff0d814
commit 782f63c3ad
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GPG key ID: A9553245FDE9B739
3 changed files with 23 additions and 2 deletions
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6
man/dhcpd-pools.1.in
View file

@ -206,6 +206,12 @@ is not in use.
Treat all stand-alone subnets as shared-network with named formed from it's
CIDR. By default this option is not in use for backwards compatibility.
.TP
\fB\-\-ip\-version\fR=\fI4|6\fR
Force command to read configuration and leases files in IPv4 or IPv6 mode.
Notice that when inputs do not match with what is forced analysis output is
garbage. This option should not be necessary to use, and exists only to
allow debugging.
.TP
\fB\-v\fR, \fB\-\-version\fR
Print version information to standard output and exit successfully.
.TP

18
src/dhcpd-pools.c
View file

@ -108,7 +108,8 @@ int main(int argc, char **argv)
OPT_CRIT,
OPT_MINSIZE,
OPT_WARN_COUNT,
OPT_CRIT_COUNT
OPT_CRIT_COUNT,
OPT_SET_IPV
};
int ret_val;
@ -130,6 +131,7 @@ int main(int argc, char **argv)
{"minsize", required_argument, NULL, OPT_MINSIZE},
{"perfdata", no_argument, NULL, 'p'},
{"all-as-shared", no_argument, NULL, 'A'},
{"ip-version", required_argument, NULL, OPT_SET_IPV},
{NULL, 0, NULL, 0}
};
@ -165,6 +167,7 @@ int main(int argc, char **argv)
/* Treat single networks as shared with network CIDR as name */
config.all_as_shared = 0;
prepare_memory();
set_ipv_functions(IPvUNKNOWN);
/* Parse command line options */
while (1) {
int c;
@ -240,6 +243,18 @@ int main(int argc, char **argv)
case OPT_MINSIZE:
config.minsize = strtod_or_err(optarg, "illegal argument");
break;
case OPT_SET_IPV:
switch(optarg[0]) {
case '4':
set_ipv_functions(IPv4);
break;
case '6':
set_ipv_functions(IPv6);
break;
default:
error(EXIT_FAILURE, 0, "unknown --ip-version argument: %s", optarg);
}
break;
case 'p':
/* Print additional performance data in alarming mode */
config.perfdata = 1;
@ -301,7 +316,6 @@ int main(int argc, char **argv)
error(EXIT_FAILURE, 0, "unknown output format: %s", quote(print_mac_addreses_tmp));
}
/* Do the job */
set_ipv_functions(IPvUNKNOWN);
parse_config(1, config.dhcpdconf_file, shared_networks);
parse_leases();
prepare_data();

1
src/other.c
View file

@ -476,6 +476,7 @@ void __attribute__ ((__noreturn__)) usage(int status)
fputs( " --snet-alarms suppress range alarms that are part of a shared-net\n", out);
fputs( " -p, --perfdata print additional perfdata in alarming mode\n", out);
fputs( " -A, --all-as-shared treat single subnets as shared-network with CIDR as their name\n", out);
fputs( " --ip-version=4|6 force analysis to use either IPv4 or IPv6 functions\n", out);
fputs( " -v, --version output version information and exit\n", out);
fputs( " -h, --help display this help and exit\n", out);
fputs( "\n", out);