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| author | Denys Vlasenko | 2018-04-15 10:52:11 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2018-04-15 10:52:11 +0200 |
| commit | a980109c6aa36995434eae4993e77d346d2f227a (patch) | |
| tree | 6bc1a0c685ae79497cbd9f5c60110e5409bd49db | |
| parent | 2cf75b3c8113c59db0bf9290bd0fdfc77cd2237b (diff) | |
| download | busybox-a980109c6aa36995434eae4993e77d346d2f227a.zip busybox-a980109c6aa36995434eae4993e77d346d2f227a.tar.gz | |
nslookup: smaller qtypes[] array
function old new delta
nslookup_main 2708 2715 +7
qtypes 80 72 -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 7/-8) Total: -1 bytes
text data bss dec hex filename
926277 555 5740 932572 e3adc busybox_old
926262 555 5740 932557 e3acd busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | networking/nslookup.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/networking/nslookup.c b/networking/nslookup.c index d31801e..c6f4313 100644 --- a/networking/nslookup.c +++ b/networking/nslookup.c @@ -271,8 +271,8 @@ struct query { }; static const struct { - int type; - const char *name; + unsigned char type; + char name[7]; } qtypes[] = { { ns_t_soa, "SOA" }, { ns_t_ns, "NS" }, @@ -285,7 +285,6 @@ static const struct { { ns_t_txt, "TXT" }, { ns_t_ptr, "PTR" }, { ns_t_any, "ANY" }, - { } }; static const char *const rcodes[] = { @@ -803,7 +802,7 @@ int nslookup_main(int argc UNUSED_PARAM, char **argv) ptr = chr + 1; for (c = 0;; c++) { - if (!qtypes[c].name) + if (c == ARRAY_SIZE(qtypes)) bb_error_msg_and_die("invalid query type \"%s\"", ptr); if (strcmp(qtypes[c].name, ptr) == 0) break; @@ -836,13 +835,11 @@ int nslookup_main(int argc UNUSED_PARAM, char **argv) add_query(&queries, &n_queries, T_AAAA, *argv); #endif } - } - else { + } else { int c; - for (c = 0; qtypes[c].name; c++) { + for (c = 0; c < ARRAY_SIZE(qtypes); c++) { if (types & (1 << c)) - add_query(&queries, &n_queries, qtypes[c].type, - *argv); + add_query(&queries, &n_queries, qtypes[c].type, *argv); } } argv++; |