Add support for querying and parsing SRV DNS records to nslookup_lede.c
This patch is based on http://lists.busybox.net/pipermail/busybox/2019-June/087359.html
Signed-off-by: Perry Melange <isprotejesvalkata@gmail.com>
[reword subject, bump PKG_RELEASE]
Signed-off-by: Paul Spooren <mail@aparcar.org>
(cherry picked from commit
3a359398f04f3f4c4a42d1ca274bb1a0f0303e05)
PKG_NAME:=busybox
PKG_VERSION:=1.33.0
PKG_NAME:=busybox
PKG_VERSION:=1.33.0
PKG_FLAGS:=essential
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
PKG_FLAGS:=essential
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
# However, on *other platforms* it fails when some of those flags
--- /dev/null
+++ b/networking/nslookup_lede.c
# However, on *other platforms* it fails when some of those flags
--- /dev/null
+++ b/networking/nslookup_lede.c
+/*
+ * nslookup_lede - musl compatible replacement for busybox nslookup
+ *
+/*
+ * nslookup_lede - musl compatible replacement for busybox nslookup
+ *
+ { ns_t_cname, "CNAME" },
+ { ns_t_mx, "MX" },
+ { ns_t_txt, "TXT" },
+ { ns_t_cname, "CNAME" },
+ { ns_t_mx, "MX" },
+ { ns_t_txt, "TXT" },
+ { ns_t_ptr, "PTR" },
+ { ns_t_any, "ANY" },
+ { }
+ { ns_t_ptr, "PTR" },
+ { ns_t_any, "ANY" },
+ { }
++ case ns_t_srv:
++ if (rdlen < 6) {
++ //printf("SRV record too short\n");
++ return -1;
++ }
++
++ cp = ns_rr_rdata(rr);
++ n = ns_name_uncompress(ns_msg_base(handle), ns_msg_end(handle),
++ cp + 6, dname, sizeof(dname));
++
++ if (n < 0) {
++ //printf("Unable to uncompress domain: %s\n", strerror(errno));
++ return -1;
++ }
++
++ printf("%s\tservice = %hu %hu %hu %s\n", ns_rr_name(rr),
++ ns_get16(cp), ns_get16(cp + 2), ns_get16(cp + 4), dname);
++ break;
++
+ case ns_t_soa:
+ if (rdlen < 20) {
+ //fprintf(stderr, "SOA record too short\n");
+ case ns_t_soa:
+ if (rdlen < 20) {
+ //fprintf(stderr, "SOA record too short\n");