libresolv

[lorenzleutgeb]

resolv.h exposes facilities to resolve DNS records. See:

• Google Bionic
• GNU C Library (I admit that I am slightly confused why it is not mentioned in the GNU C Library Manual.)
• musl
• FreeBSD

I would like to understand whether there is a particular reason why the symbols in resolv.h are not covered by the libc crate. If there is no particular reason, I would like to start working on inclusion. My original motivation is to resolve DNS records (of type SRV, TXT) and realized that the Rust standard library does not support this. My next natural step was to check the libc crate.

Target Triples: *-unknown-linux-gnu, *-unknown-android, *-unknown-freebsd (* to be narrowed down by testing).

References:

• Zig seems to support it: zig cc not creating libresolv stubs ziglang/zig#12628
• There's a resolv crate, which wraps libresolv-sys. It might benefit from this API.

[tgross35]

I would like to understand whether there is a particular reason why the symbols in resolv.h are not covered by the libc crate. If there is no particular reason, I would like to start working on inclusion. My original motivation is to resolve DNS records (of type SRV, TXT) and realized that the Rust standard library does not support this. My next natural step was to check the libc crate.

No specific reason other than nobody doing it yet, seems like you came to the same conclusion :)