KRB5_KRBHST_INIT(3) | Library Functions Manual | KRB5_KRBHST_INIT(3) |
krb5_krbhst_init
,
krb5_krbhst_init_flags
,
krb5_krbhst_next
,
krb5_krbhst_next_as_string
,
krb5_krbhst_reset
,
krb5_krbhst_free
,
krb5_krbhst_format_string
,
krb5_krbhst_get_addrinfo
—
#include <krb5/krb5.h>
krb5_error_code
krb5_krbhst_init
(krb5_context
context, const char
*realm, unsigned int
type, krb5_krbhst_handle
*handle);
krb5_error_code
krb5_krbhst_init_flags
(krb5_context
context, const char
*realm, unsigned int
type, int flags,
krb5_krbhst_handle
*handle);
krb5_error_code
krb5_krbhst_next
(krb5_context
context,
krb5_krbhst_handle
handle, krb5_krbhst_info
**host);
krb5_error_code
krb5_krbhst_next_as_string
(krb5_context
context,
krb5_krbhst_handle
handle, char
*hostname, size_t
hostlen);
void
krb5_krbhst_reset
(krb5_context
context,
krb5_krbhst_handle
handle);
void
krb5_krbhst_free
(krb5_context
context,
krb5_krbhst_handle
handle);
krb5_error_code
krb5_krbhst_format_string
(krb5_context
context, const
krb5_krbhst_info *host,
char *hostname,
size_t hostlen);
krb5_error_code
krb5_krbhst_get_addrinfo
(krb5_context
context, krb5_krbhst_info
*host, struct addrinfo
**ai);
First a handle to a particular service is obtained by calling
krb5_krbhst_init
() (or
krb5_krbhst_init_flags
()) with the
realm of interest and the type of service to lookup.
The type can be one of:
The handle is returned to the caller, and should be passed to the other functions.
The flag argument to
krb5_krbhst_init_flags
is the same flags as
krb5_send_to_kdc_flags
() uses. Possible values
are:
For each call to krb5_krbhst_next
()
information on a new host is returned. The former function returns in
host a pointer to a structure containing information
about the host, such as protocol, hostname, and port:
typedef struct krb5_krbhst_info { enum { KRB5_KRBHST_UDP, KRB5_KRBHST_TCP, KRB5_KRBHST_HTTP } proto; unsigned short port; struct addrinfo *ai; struct krb5_krbhst_info *next; char hostname[1]; } krb5_krbhst_info;
The related function,
krb5_krbhst_next_as_string
(), return the same
information as a URL-like string.
When there are no more hosts, these functions return
KRB5_KDC_UNREACH
.
To re-iterate over all hosts, call
krb5_krbhst_reset
() and the next call to
krb5_krbhst_next
() will return the first host.
When done with the handle,
krb5_krbhst_free
() should be called.
To use a krb5_krbhst_info, there are two
functions: krb5_krbhst_format_string
() that will
return a printable representation of that struct and
krb5_krbhst_get_addrinfo
() that will return a
struct addrinfo that can then be used for
communicating with the server mentioned.
krb5_krbhst_handle handle; char host[MAXHOSTNAMELEN]; krb5_krbhst_init(context, "MY.REALM", KRB5_KRBHST_KDC, &handle); while(krb5_krbhst_next_as_string(context, handle, host, sizeof(host)) == 0) printf("%s\n", host); krb5_krbhst_free(context, handle);
May 10, 2005 | NetBSD 9.2 |