1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* g_admhst.c
*
* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
* of Technology.
*
* For copying and distribution information, please see the file
* <mit-copyright.h>.
*/
#include "mit-copyright.h"
#include <stdio.h>
#include "krb.h"
#include <string.h>
#include "krb4int.h"
/*
* Given a Kerberos realm, find a host on which the Kerberos database
* administration server can be found.
*
* krb_get_admhst takes a pointer to be filled in, a pointer to the name
* of the realm for which a server is desired, and an integer n, and
* returns (in h) the nth administrative host entry from the configuration
* file (KRB_CONF, defined in "krb.h") associated with the specified realm.
* If ATHENA_CONF_FALLBACK is defined, also look in old location.
*
* On error, get_admhst returns KFAILURE. If all goes well, the routine
* returns KSUCCESS.
*
* For the format of the KRB_CONF file, see comments describing the routine
* krb_get_krbhst().
*
* This is a temporary hack to allow us to find the nearest system running
* a Kerberos admin server. In the long run, this functionality will be
* provided by a nameserver.
*/
int KRB5_CALLCONV
krb_get_admhst(h, r, n)
char FAR *h;
char FAR *r;
int n;
{
FILE *cnffile;
char tr[REALM_SZ];
char linebuf[BUFSIZ];
char scratch[64];
register int i;
cnffile = krb__get_cnffile();
if (!cnffile)
return(KFAILURE);
if (fgets(linebuf, BUFSIZ, cnffile) == NULL) {
/* error reading */
(void) fclose(cnffile);
return(KFAILURE);
}
if (!strchr(linebuf, '\n')) {
/* didn't all fit into buffer, punt */
(void) fclose(cnffile);
return(KFAILURE);
}
for (i = 0; i < n; ) {
/* run through the file, looking for admin host */
if (fgets(linebuf, BUFSIZ, cnffile) == NULL) {
(void) fclose(cnffile);
return(KFAILURE);
}
/* need to scan for a token after 'admin' to make sure that
admin matched correctly */
if (sscanf(linebuf, "%s %s admin %s", tr, h, scratch) != 3)
continue;
if (!strcmp(tr,r))
i++;
}
(void) fclose(cnffile);
return(KSUCCESS);
}
|
