/*
* hosts.c -- find out the official name of a host
*
- * $Id$
- *
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
#include <h/mh.h>
#include <h/mts.h>
+#include <sys/socket.h>
#include <netdb.h>
static struct host {
char *
OfficialName (char *name)
{
- char *p, *q, site[BUFSIZ];
- struct hostent *hp;
+ unsigned char *p;
+ char *q, site[BUFSIZ];
+ struct addrinfo hints, *res;
static char buffer[BUFSIZ];
char **r;
if (!mh_strcasecmp (LocalName(), site))
return LocalName();
-#ifdef HAVE_SETHOSTENT
- sethostent (1);
-#endif
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_flags = AI_CANONNAME;
+ hints.ai_family = PF_UNSPEC;
- if ((hp = gethostbyname (q))) {
- strncpy (buffer, hp->h_name, sizeof(buffer));
+ if (getaddrinfo(q, NULL, &hints, &res) == 0) {
+ strncpy (buffer, res->ai_canonname, sizeof(buffer));
+ buffer[sizeof(buffer) - 1] = '\0';
+ freeaddrinfo(res);
return buffer;
}
if (hosts.h_name || init_hs ()) {
static int
init_hs (void)
{
- char *cp, *dp, **q, **r;
+ unsigned char *cp;
+ char *dp, **q, **r;
char buffer[BUFSIZ], *aliases[NALIASES];
register struct host *h;
register FILE *fp;