pollution: gethostbyaddr
struct hostent *gethostbyaddr(const void *, socklen_t, int); 

pollution: gethostbyname
struct hostent *gethostbyname(const char *); 

pollution: HOST_NOT_FOUND
#define HOST_NOT_FOUND 1

pollution: NO_DATA
#define NO_DATA 4

pollution: NO_RECOVERY
#define NO_RECOVERY 3

pollution: TARGET_IPHONE_SIMULATOR
#define TARGET_IPHONE_SIMULATOR 0

pollution: TARGET_OS_ARROW
#define TARGET_OS_ARROW 1

pollution: TARGET_OS_BRIDGE
#define TARGET_OS_BRIDGE 0

pollution: TARGET_OS_DRIVERKIT
#define TARGET_OS_DRIVERKIT 0

pollution: TARGET_OS_EMBEDDED
#define TARGET_OS_EMBEDDED 0

pollution: TARGET_OS_IOS
#define TARGET_OS_IOS 0

pollution: TARGET_OS_IOSMAC
#define TARGET_OS_IOSMAC 0

pollution: TARGET_OS_IPHONE
#define TARGET_OS_IPHONE 0

pollution: TARGET_OS_LINUX
#define TARGET_OS_LINUX 0

pollution: TARGET_OS_MAC
#define TARGET_OS_MAC 1

pollution: TARGET_OS_MACCATALYST
#define TARGET_OS_MACCATALYST 0

pollution: TARGET_OS_NANO
#define TARGET_OS_NANO 0

pollution: TARGET_OS_OSX
#define TARGET_OS_OSX 1

pollution: TARGET_OS_SIMULATOR
#define TARGET_OS_SIMULATOR 0

pollution: TARGET_OS_TV
#define TARGET_OS_TV 0

pollution: TARGET_OS_UEFI
#define TARGET_OS_UEFI 0

pollution: TARGET_OS_UIKITFORMAC
#define TARGET_OS_UIKITFORMAC 0

pollution: TARGET_OS_UNIX
#define TARGET_OS_UNIX 0

pollution: TARGET_OS_VISION
#define TARGET_OS_VISION 0

pollution: TARGET_OS_WATCH
#define TARGET_OS_WATCH 0

pollution: TARGET_OS_WIN32
#define TARGET_OS_WIN32 0

pollution: TARGET_OS_WINDOWS
#define TARGET_OS_WINDOWS 0

pollution: TARGET_OS_XR
#define TARGET_OS_XR 0

pollution: TRY_AGAIN
#define TRY_AGAIN 2