socket.c:879:2: error: No reference implementation for getifaddrs available for this platform.

[coderjing]

err: Making all in src
CC glue.lo
CC socket.lo
socket.c:879:2: error: No reference implementation for getifaddrs available for this platform.
879 | #error No reference implementation for getifaddrs available for this platform.
| ^
socket.c:887:6: error: call to undeclared function 'getifaddrs'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
887 | if (getifaddrs(&ifaddr) != -1) {
| ^
socket.c:936:3: error: call to undeclared function 'freeifaddrs'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
936 | freeifaddrs(ifaddr);
| ^
socket.c:955:6: error: call to undeclared function 'getifaddrs'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
955 | if (getifaddrs(&ifaddr) == -1) {
| ^
socket.c:1026:2: error: call to undeclared function 'freeifaddrs'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1026 | freeifaddrs(ifaddr);
| ^
5 errors generated.

I am communicating between the Android car device and the iOS device through USB. USB is abstracted as TCP, and functions such as socket and address lookup should be used. This method is not implemented in the Android NDK, do I need to implement it myself?

[nikias]

I guess so. It doesn't seem to be a readily-available function on Android. I have found this:
https://github.com/morristech/android-ifaddrs
Maybe you can add the code somehow.

[nikias]

You can try this patch: https://gist.github.com/nikias/1db4a854cac748bfccc2257f19443b4b

[nikias]

@coderjing have you had a chance to test my patch?