/etc/hosts
result = sethostent (stayopen)
int result, stayopen;
result 0
-1
stayopen /etc/hosts
gethostbyaddr()
gethostbyname() gethostent()
/etc/services
gethostbyaddr() gethostbyname()
gethostent() gethostent()
/etc/hosts
/etc/networks
result = setnetent (stayopen)
int result, stayopen;
result 0
-1
stayopen /etc/networks
getnetbyaddr()
getnetbyname() getnetent()
/etc/services
getnetbyaddr() getnetbyname() getnetent()
getnetent()
/etc/networks
/etc/protocols
result = setprotoent (stayopen)
int result, stayopen;
result 0
-1
stayopen /etc/protocols
getprotobyname()
getprotobynumber() getprotoent()
/etc/protocols
getprotobyname() getprotobynumber()
getprotoent() getprotoent()
/etc/protocols