1 /* Internet Socket Example using sockaddr_in.
2 Copyright (C) 1991-2021 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, see <https://www.gnu.org/licenses/>.
20 #include <sys/socket.h>
21 #include <netinet/in.h>
25 init_sockaddr (struct sockaddr_in
*name
,
29 struct hostent
*hostinfo
;
31 name
->sin_family
= AF_INET
;
32 name
->sin_port
= htons (port
);
33 hostinfo
= gethostbyname (hostname
);
36 fprintf (stderr
, "Unknown host %s.\n", hostname
);
39 name
->sin_addr
= *(struct in_addr
*) hostinfo
->h_addr
;