failed to cross-compile for Android

[iwinux]

redudp.c has been using tfind / tsearch functions (defined in <search.h>) since commit 709646d, which causes the failure of cross-compiling for Android, because the Android standalone toolchain doesn't provide <search.h>, neither does it implements tfind related functions.

A quick fix can be done by downloading the missing files from here, put them into the redsocks repo, and update Makefile to add these dependencies. (tested on my machine and it works)

What do you think?

[Periphory]

Hey, where did you find the definitions for node_t? I tried to copy the files as you say but I cannot find definitions of node_t.

[iwinux]

@Periphory well, since this was a nearly two-year old issue, things may change drastically :(

[Periphory]

Hmm, I cannot find a more up-to-date straight build for Android. None of the files that are in the place you linked have been updated since before then so there must be a definition somewhere.

[darkk]

I've added following paragraph to README:

When is redsocks probably a wrong tool?

• redirecting traffic to proxy on mobile device running Android or iOS as it'll require rooting to update firewall rules. Probably, the better way is to use on-device VPN daemon to intercept traffic via VpnService API for Android and NETunnelProvider family of APIs for iOS. That may require some code doing TCP Reassembly like tun2socks.

Tell me, is Android build still relevant for your project? Probably, tun2socks (or alike code) would suit better as it has same capabilities and does not require root.