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authorDenys Vlasenko <vda.linux@googlemail.com>2018-04-15 12:49:11 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2018-04-15 12:50:28 +0200
commit6cdc3195a6d174363a813d58b8372f0f5cd546b1 (patch)
tree360d653239f5e6bbcc539599b46e239b07c6c083
parent296381ff4f69715ed880adcce7d5ce608153e767 (diff)
downloadbusybox-6cdc3195a6d174363a813d58b8372f0f5cd546b1.tar.gz
nslookup: change -stats to -debug (it's a bug in bind that it accepts -s)
function old new delta packed_usage 32211 32189 -22 nslookup_main 2754 2692 -62 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-84) Total: -84 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--networking/nslookup.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/networking/nslookup.c b/networking/nslookup.c
index 112e8763c..63bb46b55 100644
--- a/networking/nslookup.c
+++ b/networking/nslookup.c
@@ -21,7 +21,7 @@
//kbuild:lib-$(CONFIG_NSLOOKUP) += nslookup.o
//usage:#define nslookup_trivial_usage
-//usage: IF_FEATURE_NSLOOKUP_BIG("[-type=QUERY_TYPE] ") "HOST [DNS_SERVER]"
+//usage: IF_FEATURE_NSLOOKUP_BIG("[-type=QUERY_TYPE] [-debug] ") "HOST [DNS_SERVER]"
//usage:#define nslookup_full_usage "\n\n"
//usage: "Query DNS about HOST"
//usage:
@@ -306,7 +306,7 @@ static const char *const rcodes[] = {
};
#if ENABLE_FEATURE_IPV6
-static const char v4_mapped[] = { 0,0,0,0,0,0,0,0,0,0,0xff,0xff };
+static const char v4_mapped[12] = { 0,0,0,0, 0,0,0,0, 0,0,0xff,0xff };
#endif
struct globals {
@@ -325,7 +325,7 @@ struct globals {
} while (0)
enum {
- OPT_stats = (1 << 0),
+ OPT_debug = (1 << 0),
};
static int parse_reply(const unsigned char *msg, size_t len)
@@ -634,7 +634,7 @@ static int send_queries(struct ns *ns, struct query *query, int n_queries)
query[qn].rlen = recvlen;
tcur = monotonic_ms();
#if 1
- if (option_mask32 & OPT_stats) {
+ if (option_mask32 & OPT_debug) {
printf("Query #%d completed in %ums:\n", qn, tcur - tstart);
}
if (rcode != 0) {
@@ -788,7 +788,7 @@ int nslookup_main(int argc UNUSED_PARAM, char **argv)
"querytype\0" /* 1 */
"port\0" /* 2 */
"retry\0" /* 3 */
- "stats\0" /* 4 */
+ "debug\0" /* 4 */
"t\0" /* disambiguate with "type": else -t=2 fails */
"timeout\0" /* 6 */
"";
@@ -829,7 +829,7 @@ int nslookup_main(int argc UNUSED_PARAM, char **argv)
G.default_retry = xatou_range(val, 1, INT_MAX);
}
if (i == 4) {
- option_mask32 |= OPT_stats;
+ option_mask32 |= OPT_debug;
}
if (i > 4) {
G.default_timeout = xatou_range(val, 1, INT_MAX / 1000);
@@ -883,10 +883,12 @@ int nslookup_main(int argc UNUSED_PARAM, char **argv)
c = send_queries(&G.server[rc], queries, n_queries);
if (c > 0) {
/* more than zero replies received */
- if (option_mask32 & OPT_stats) {
+#if 0 /* which version does this? */
+ if (option_mask32 & OPT_debug) {
printf("Replies:\t%d\n", G.server[rc].replies);
printf("Failures:\t%d\n\n", G.server[rc].failures);
}
+#endif
break;
//FIXME: we "break" even though some queries may still be not answered, and other servers may know them?
}
@@ -900,7 +902,8 @@ int nslookup_main(int argc UNUSED_PARAM, char **argv)
// $ nslookup gmail.com 8.8.8.8
// ;; connection timed out; no servers could be reached
//
-// $ nslookup -s gmail.com 8.8.8.8; echo EXITCODE:$?
+// Using TCP mode:
+// $ nslookup -vc gmail.com 8.8.8.8; echo EXITCODE:$?
// <~10 sec>
// ;; Connection to 8.8.8.8#53(8.8.8.8) for gmail.com failed: timed out.
// <~10 sec>