pollution: tv_sec
time_t tv_sec; 

pollution: tv_nsec
long tv_nsec; 

pollution: timespec
struct timespec { time_t tv_sec; long tv_nsec; }; 

pollution: timespec
struct timespec ai_ttl; 

pollution: NI_MAXSERV
#define NI_MAXSERV 32

pollution: AI_DNS
#define AI_DNS (1<<7)

pollution: AI_DNSRAW
#define AI_DNSRAW (1<<8)

pollution: NI_MAXHOST
#define NI_MAXHOST 1025