1 #define _GNU_SOURCE 2 3 #include <sys/socket.h> 4 #include <netdb.h> 5 #include <string.h> 6 #include <netinet/in.h> 7 gethostbyname(const char * name)8 struct hostent *gethostbyname(const char *name) 9 { 10 return gethostbyname2(name, AF_INET); 11 } 12