+static void failure_errno(const char *what, int errnoval) NONRETURNING;
+static void failure_errno(const char *what, int errnoval) {
+ switch (errnoval) {
+#define CE(e) \
+ case e: fprintf(stderr,"adns failure: %s: errno=" #e "\n",what); break
+ CE(EINVAL);
+ CE(EINTR);
+ CE(ESRCH);
+ CE(EAGAIN);
+ CE(ENOSYS);
+ CE(ERANGE);
+#undef CE
+ default: fprintf(stderr,"adns failure: %s: errno=%d\n",what,errnoval); break;
+ }
+ quitnow(2);
+}
+
+static void usageerr(const char *why) NONRETURNING;
+static void usageerr(const char *why) {
+ fprintf(stderr,
+ "bad usage: %s\n"
+ "usage: adnstest [-<initflagsnum>[,<owninitflags>]] [/<initstring>]\n"
+ " [ :<typenum>,... ]\n"
+ " [ [<queryflagsnum>[,<ownqueryflags>]/]<domain> ... ]\n"
+ "initflags: p use poll(2) instead of select(2)\n"
+ " s use adns_wait with specified query, instead of 0\n"
+ "queryflags: a print status abbrevs instead of strings\n"
+ "typenum: may be 0x<hex>|<dec>, or 0x<hex> or <dec>\n"
+ "exit status: 0 ok (though some queries may have failed)\n"
+ " 1 used by test harness to indicate test failed\n"
+ " 2 unable to submit or init or some such\n"
+ " 3 unexpected failure\n"
+ " 4 usage error\n"
+ " 5 operation not supported on this system\n",
+ why);
+ quitnow(4);
+}