{ ot_desconly, "per-query options:" },
{ ot_funcarg, "Query type (see below)",
"t", "type", 0,0, &of_type, "type" },
+ { ot_funcarg, "Do reverse query (address -> name lookup)",
+ "i", "ptr", 0,0, &of_ptr, "addr" },
{ ot_desconly, "per-query binary options:" },
{ ot_flag, "Use the search list",
{ ot_desconly, "asynchronous/pipe mode options:" },
{ ot_funcarg, "Set <id>, default is decimal sequence starting 0",
- "i", "asynch-id", 0,0, &of_asynch_id, "id" },
- { ot_funcarg, "Cancel the query with id <id>",
+ 0, "asynch-id", 0,0, &of_asynch_id, "id" },
+ { ot_funcarg, "Cancel the query with id <id> (no error if not found)",
0, "cancel-id", 0,0, &of_cancel_id, "id" },
{ ot_end }
"or if the <owner> domain refers to a CNAME and --show-cname is on\n"
" [<owner>] [<ttl>] CNAME <cname>\n"
" [<cname>] [<ttl>] <type> <data>\n"
- "When a query fails you get a line like:\n"
- " ; failed <statustype> [<owner>] [<ttl>] [<type>] <status> \"<status string>\"\n"
+ "When a query fails you get a line like this (broken here for readability):\n"
+ " ; failed <statustype> <statusnum> <statusabbrev> \\\n"
+ " [<owner>] [<ttl>] [<cname>] \"<status string>\"\n"
"\n"
"If you use --asynch each answer (success or failure) is preceded by a line\n"
- " <id> <statustype> <status> <nrrs> [<cname>] \"<status string>\"\n"
+ " <id> <nrrs> <statustype> <statusnum> <statusabbrev> \\\n"
+ " [<owner>] [<ttl>] [<cname>] \"<status string>\"\n"
"where <nrrs> is the number of RRs that follow and <cname> will be `$' or\n"
"the CNAME target; the CNAME indirection and error formats above are not used.\n"
"\n"
"Query types (see adns.h; default is addr):\n"
" ns soa ptr mx rp addr - enhanced versions\n"
" cname hinfo txt - types with only one version\n"
- " a ns- soa- ptr- mx- rp- - _raw versions\n",
+ " a ns- soa- ptr- mx- rp- - _raw versions\n"
+ "Default is addr, or ptr for -i/--ptr queries\n",
stdout);
if (ferror(stdout)) sysfail("write usage message",errno);
}
const struct optioninfo *opt_findl(const char *opt) { return find(&opt,"--",oc_long); }
const struct optioninfo *opt_finds(const char **optp) { return find(optp,"-",oc_short); }
-void opt_do(const struct optioninfo *oip, const char *arg) {
+static void noninvert(const struct optioninfo *oip) NONRETURNING;
+static void noninvert(const struct optioninfo *oip) {
+ usageerr("option %s%s%s%s%s may not be inverted",
+ oip->sopt ? "-" : "", oip->sopt ? oip->sopt : "",
+ oip->lopt && oip->sopt ? " / " : "",
+ oip->lopt ? "--" : "", oip->lopt ? oip->lopt : "");
+}
+
+void opt_do(const struct optioninfo *oip, const char *arg, int invert) {
switch (oip->type) {
- case ot_flag: case ot_value:
+ case ot_flag:
+ assert(!arg);
+ *oip->storep= !invert;
+ return;
+ case ot_value:
assert(!arg);
+ if (invert) noninvert(oip);
*oip->storep= oip->value;
return;
case ot_func: case ot_funcarg:
- oip->func(oip,0);
+ if (invert) noninvert(oip);
+ oip->func(oip,arg);
return;
default:
abort();