Add `ucred` on Android

netbsd: add KERN_PROC_ARGS sysctl MIB subtypes

Add getservbyname, getprotobyname, and related structs

bump to 0.2.32

- add DCCP constant definitions
- add clock_gettime related functions to macOS
- add fstatat64 on linux/android
- add preadv64/pwritev64 on linux/android
- add utimensat on solaris, netbsd and openbsd
- add IP_BINDANY on freebsd

- add DCCP constant definitions
- add clock_gettime related functions to macOS
- add fstatat64 on linux/android
- add preadv64/pwritev64 on linux/android
- add utimensat on solaris, netbsd and openbsd
- add IP_BINDANY on freebsd

Add IP_BINDANY for FreeBSD

Adds the IP_BINDANY constant for FreeBSD. Thanks!

add utimensat to NetBSD and OpenBSD

Disable https on Android SDK fetch

Apparently it no longer works

Apparently it no longer works

Add preadv64/pwritev64 on Linux/Android

Add fstatat64 on Linux/Android

Add support for aarch64-unknown-linux-musl

This adds support for aarch64-unknown-linux-musl as requested in rust-lang/rust#44779 by @alexcrichton

The new file `ci/docker/aarch64-unknown-linux-musl/Dockerfile` essentially merges the aarch64-unknown-linux-gnu and x86_64-unknown-linux-musl Dockerfiles.

The bigger changes are under `src/unix/notbsd/linux/`, though they're fairly superficial:

Previously, some constants could be shared between all 64-bit musl triples, but aarch64 differs, so a number of things were moved from `musl/b64/mod.rs` to specific arches: `musl/b64/powerpc64.rs` and `musl/b64/x86_64.rs`, with the aarch64-specific differences being added to `musl/b64/aarch64.rs`.

Similarly, some constants moved from `musl/mod.rs` to lower levels: `musl/b32/mod.rs`, `musl/b64/powerpc64.rs`, and `musl/b64/x86_64.rs`, with the aarch64-specific differences added to `musl/b64/aarch64.rs`.

Finally, some things that were true of all Linux builds moved from `mod.rs` into lower levels: `mips/mod.rs`, `other/mod.rs`, `musl/b32/mod.rs`, `musl/b64/powerpc64.rs`, and `musl/b64/x86_64.rs`, with the aarch64-specific differences added to `musl/b64/aarch64.rs`.

Testing:

All linux-based triples under `ci/docker` were run through `ci/run-docker.sh` successfully, which checks that the size and alignment of definitions match for each triple, among other tests.  (The local build of rust from rust-lang/rust#44779 was set for the aarch64-unknown-linux-musl build.)

I also confirmed that it has "good style!" according to `ci/style.rs`.

Signed-off-by: Tom Kirchner <tjk@amazon.com>
Signed-off-by: Ben Cressey <bcressey@amazon.com>

Haiku fixes for nix

Unfortunately, these differ on Haiku, and using #[cfg(...)] is
not allowed in unix/mod.rs.

This reverts commit f816434f.

Add utimensat for Solaris

Add clock_gettime related functions to macOS

Fixes https://github.com/rust-lang/libc/issues/776. The constants were retrieved on macOS 10.12.6. Tried adding `clock_nanosleep` too, but it doesn't seem like macOS' libc includes that yet.

Doesn't work on iOS.

Define DCCP constants

This PR defines constants needed to utilize [DCCP](https://en.wikipedia.org/wiki/Datagram_Congestion_Control_Protocol) in Linux and NetBSD.