When invoking "nslookup_lede" with a domain argument and without explicit
query type, issue both A and AAAA queries and display the resulting IP
addresses in a numbered list style, similar to how the old BusyBox nslookup
used to output the records.
This is required for compatibility with certain scripts.
Ref: https://forum.lede-project.org/t/nslookup-ipv6-in-lede-17-01-1
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
The ":*" optstring syntax was only recently introduced with BusyBox v1.26,
older versions need a corresponding hint in the "opt_complementary" variable
to denote flag values that should be stored as llist entries.
Add the required opt_complementary entry to fix random SIGBUS, SIGILL or
SIGSEGV related crashes on BusyBox 1.25.x when attempting to use the "-q"
flag of the "nslookup_lede" applet.
Ref: https://forum.lede-project.org/t/nslookup-ipv6-in-lede-17-01-1
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Protect any IPv6 related with appropriate guards to fix compilation with
disabled IPv6 support in Busybox.
Fixes#728.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Since the LEDE nslookup applet is already specific to LEDE, move the
libresolv detection into the busybox Makefile that LEDE uses.
This fixes builds with external toolchains that don't automatically
search for headers and/or libraries without being told so.
Fixes: de5b8e5d2f ("busybox: add musl compatible nslookup replacement")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Add an alternative nslookup applet implementation which is compatible with
musl libc wrt. name server selection and which supports a number of additional
features such as query type selection.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
