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resolve-host: add option to list protocols

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This commit is contained in:
Zbigniew Jędrzejewski-Szmek
2016-01-29 12:13:08 -05:00
parent 869b3b67e3
commit ba82da3bb5
2 changed files with 34 additions and 20 deletions
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src/resolve/resolve-tool.c
+26 -17
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@@ -900,6 +900,12 @@ static int reset_statistics(sd_bus *bus) {
return 0;
}
static void help_protocol_types(void) {
if (arg_legend)
puts("Known protocol types:");
puts("dns\nllmnr\nllmnr-ipv4\nllmnr-ipv6");
}
static void help_dns_types(void) {
int i;
const char *t;
@@ -930,22 +936,22 @@ static void help(void) {
printf("%s [OPTIONS...] NAME...\n"
"%s [OPTIONS...] --service [[NAME] TYPE] DOMAIN\n\n"
"Resolve domain names, IPv4 and IPv6 addresses, DNS resource records, and services.\n\n"
" -h --help Show this help\n"
" --version Show package version\n"
" -4 Resolve IPv4 addresses\n"
" -6 Resolve IPv6 addresses\n"
" -i --interface=INTERFACE Look on interface\n"
" -p --protocol=PROTOCOL Look via protocol\n"
" -t --type=TYPE Query RR with DNS type\n"
" -c --class=CLASS Query RR with DNS class\n"
" --service Resolve service (SRV)\n"
" --service-address=BOOL Do [not] resolve address for services\n"
" --service-txt=BOOL Do [not] resolve TXT records for services\n"
" --cname=BOOL Do [not] follow CNAME redirects\n"
" --search=BOOL Do [not] use search domains\n"
" --legend=BOOL Do [not] print column headers and meta information\n"
" --statistics Show resolver statistics\n"
" --reset-statistics Reset resolver statistics\n"
" -h --help Show this help\n"
" --version Show package version\n"
" -4 Resolve IPv4 addresses\n"
" -6 Resolve IPv6 addresses\n"
" -i --interface=INTERFACE Look on interface\n"
" -p --protocol=PROTOCOL|help Look via protocol\n"
" -t --type=TYPE|help Query RR with DNS type\n"
" -c --class=CLASS|help Query RR with DNS class\n"
" --service Resolve service (SRV)\n"
" --service-address=BOOL Do [not] resolve address for services\n"
" --service-txt=BOOL Do [not] resolve TXT records for services\n"
" --cname=BOOL Do [not] follow CNAME redirects\n"
" --search=BOOL Do [not] use search domains\n"
" --legend=BOOL Do [not] print column headers and meta information\n"
" --statistics Show resolver statistics\n"
" --reset-statistics Reset resolver statistics\n"
, program_invocation_short_name, program_invocation_short_name);
}
@@ -1061,7 +1067,10 @@ static int parse_argv(int argc, char *argv[]) {
break;
case 'p':
if (streq(optarg, "dns"))
if (streq(optarg, "help")) {
help_protocol_types();
return 0;
} else if (streq(optarg, "dns"))
arg_flags |= SD_RESOLVED_DNS;
else if (streq(optarg, "llmnr"))
arg_flags |= SD_RESOLVED_LLMNR;