2 * Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
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7 * modification, are permitted provided that the following conditions
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18 * may be used to endorse or promote products derived from this software
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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36 RCSID("$Id: name2name.c,v 1.22 1999/12/02 16:58:43 joda Exp $");
38 /* convert host to a more fully qualified domain name, returns 0 if
39 * phost is the same as host, 1 otherwise. phost should be
40 * phost_size bytes long.
44 krb_name_to_name(const char *host, char *phost, size_t phost_size)
50 adr.s_addr = inet_addr(host);
51 if (adr.s_addr != INADDR_NONE)
52 hp = gethostbyaddr((char *)&adr, sizeof(adr), AF_INET);
54 hp = gethostbyname(host);
60 * Broken SunOS 5.4 sometimes keeps the official name as the
63 if (strchr(tmp, '.') == NULL
64 && hp->h_aliases != NULL
65 && hp->h_aliases[0] != NULL
66 && strchr (hp->h_aliases[0], '.') != NULL)
67 tmp = hp->h_aliases[0];
69 strlcpy (phost, tmp, phost_size);
71 if (strcmp(phost, host) == 0)
77 /* lowercase and truncate */
80 k_ricercar(char *name)
82 unsigned char *p = (unsigned char *)name;
84 while(*p && *p != '.'){
94 * This routine takes an alias for a host name and returns the first
95 * field, in lower case, of its domain name.
97 * Example: "fOo.BAR.com" -> "foo"
101 krb_get_phost(const char *alias)
103 static char phost[MaxHostNameLen];
105 krb_name_to_name(alias, phost, sizeof(phost));