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re-write to use getaddrinfo

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@7492 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1999-12-04 18:02:18 +00:00
parent dd4d1e9499
commit 661312f68b
3 changed files with 136 additions and 128 deletions
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134
lib/krb5/changepw.c
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@@ -38,14 +38,16 @@ RCSID("$Id$");
static krb5_error_code
get_kdc_address (krb5_context context,
krb5_realm realm,
struct sockaddr *sa,
int *sa_size)
struct addrinfo **ai)
{
struct addrinfo hints;
krb5_error_code ret;
struct hostent *hostent;
char **hostlist;
int port = 0;
char portstr[NI_MAXSERV];
int error;
char *host;
char *dot;
char *p;
ret = krb5_get_krb_admin_hst (context,
&realm,
@@ -53,33 +55,26 @@ get_kdc_address (krb5_context context,
if (ret)
return ret;
p = *hostlist;
host = *hostlist;
dot = strchr (p, ':');
if (dot)
*dot = '\0';
dot = strchr (host, ':');
if (dot != NULL) {
char *end;
#ifdef HAVE_GETHOSTBYNAME2
#ifdef HAVE_IPV6
hostent = gethostbyname2 (p, AF_INET6);
if (hostent == NULL)
#endif
hostent = gethostbyname2 (p, AF_INET);
#else
hostent = roken_gethostbyname (p);
#endif
*dot++ = '\0';
port = strtol (dot, &end, 0);
}
if (port == 0)
port = krb5_getportbyname (context, "kpasswd", "udp", KPASSWD_PORT);
snprintf (portstr, sizeof(portstr), "%u", ntohs(port));
memset (&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;
error = getaddrinfo (host, portstr, &hints, ai);
krb5_free_krbhst (context, hostlist);
if (hostent == NULL)
return h_errno; /* XXX */
return krb5_h_addr2sockaddr (hostent->h_addrtype,
hostent->h_addr_list[0],
sa,
sa_size,
krb5_getportbyname (context,
"kpasswd",
"udp",
KPASSWD_PORT));
return error;
}
static krb5_error_code
@@ -284,6 +279,8 @@ krb5_change_password (krb5_context context,
krb5_auth_context auth_context = NULL;
int sock;
int i;
struct addrinfo *ai, *a;
struct sockaddr_storage __ss;
struct sockaddr *sa = (struct sockaddr *)&__ss;
int sa_size = sizeof(__ss);
@@ -292,55 +289,60 @@ krb5_change_password (krb5_context context,
if (ret)
return ret;
ret = get_kdc_address (context, creds->client->realm, sa, &sa_size);
ret = get_kdc_address (context, creds->client->realm, &ai);
if (ret)
goto out;
sock = socket (sa->sa_family, SOCK_DGRAM, 0);
if (sock < 0) {
ret = errno;
goto out;
}
krb5_auth_con_setflags (context, auth_context,
KRB5_AUTH_CONTEXT_DO_SEQUENCE);
for (i = 0; i < 5; ++i) {
fd_set fdset;
struct timeval tv;
for (a = ai; a != NULL; a = a->ai_next) {
sock = socket (a->ai_family, a->ai_socktype, a->ai_protocol);
if (sock < 0)
continue;
ret = send_request (context,
&auth_context,
creds,
sock,
sa,
sa_size,
newpw);
if (ret)
goto out;
for (i = 0; i < 5; ++i) {
fd_set fdset;
struct timeval tv;
FD_ZERO(&fdset);
FD_SET(sock, &fdset);
tv.tv_usec = 0;
tv.tv_sec = 1 << i;
ret = send_request (context,
&auth_context,
creds,
sock,
sa,
sa_size,
newpw);
if (ret)
goto out;
ret = select (sock + 1, &fdset, NULL, NULL, &tv);
if (ret < 0 && errno != EINTR)
goto out;
if (ret == 1)
FD_ZERO(&fdset);
FD_SET(sock, &fdset);
tv.tv_usec = 0;
tv.tv_sec = 1 << i;
ret = select (sock + 1, &fdset, NULL, NULL, &tv);
if (ret < 0 && errno != EINTR)
goto out;
if (ret == 1)
break;
}
if (i == 5) {
ret = KRB5_KDC_UNREACH;
close (sock);
continue;
}
ret = process_reply (context,
auth_context,
sock,
result_code,
result_code_string,
result_string);
close (sock);
if (ret == 0)
break;
}
if (i == 5) {
ret = KRB5_KDC_UNREACH;
goto out;
}
ret = process_reply (context,
auth_context,
sock,
result_code,
result_code_string,
result_string);
freeaddrinfo (ai);
out:
krb5_auth_con_free (context, auth_context);