llvm-project

860a07be - [libc] Add stubs for POSIX netdb.h and getaddrinfo (#219337)

[libc] Add stubs for POSIX netdb.h and getaddrinfo (#219337) * Add the `<netdb.h>` POSIX header and declare `struct addrinfo` and `freeaddrinfo` and `getaddrinfo` methods as defined in https://pubs.opengroup.org/onlinepubs/9799919799/functions/getaddrinfo.html ; * Provide Linux-specific definitions for `EAI_` macro family; * Add header/entrypoints to the list of "experimental" (i.e. WIP) entrypoints on Linux systems; * Create the proxy header harness for types / Linux-specific macro. * Provide stub implementations - no-op `freeaddrinfo` and `getaddrinfo` that returns `EAI_SYSTEM` and sets errno to `ENOSYS`. Validate this behavior in unit tests. Assisted by automated tooling, human-reviewed