netdb.h (man0p)
netdb.h — definitions for network database operations
netdb.h — definitions for network database operations
termios.h — define values for termios
sys/mman.h — memory management declarations
math.h — mathematical declarations
poll.h — definitions for the poll() function
utime.h — access and modification times structure
iso646.h — alternative spellings
search.h — search tables
assert.h — verify program assertion
langinfo.h — language information constants