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remove arbitrary limit

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@4488 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1998-03-01 02:44:29 +00:00
parent 37fd642d03
commit e99f4c1720
5 changed files with 330 additions and 90 deletions
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56
lib/krb5/build_auth.c
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@@ -50,7 +50,8 @@ krb5_build_authenticator (krb5_context context,
krb5_data *result)
{
Authenticator *auth;
unsigned char buf[1024];
u_char *buf = NULL;
size_t buf_size;
size_t len;
krb5_error_code ret;
@@ -58,6 +59,7 @@ krb5_build_authenticator (krb5_context context,
if (auth == NULL)
return ENOMEM;
memset (auth, 0, sizeof(*auth));
auth->authenticator_vno = 5;
copy_Realm(&cred->client->realm, &auth->crealm);
copy_PrincipalName(&cred->client->name, &auth->cname);
@@ -70,13 +72,14 @@ krb5_build_authenticator (krb5_context context,
auth->cusec = usec;
}
ret = krb5_auth_con_getlocalsubkey(context, auth_context, &auth->subkey);
if(ret == ENOMEM)
/* XXX */;
if(ret)
goto fail;
if(auth->subkey == NULL) {
krb5_generate_subkey (context, &cred->session, &auth->subkey);
ret = krb5_auth_con_setlocalsubkey(context, auth_context, auth->subkey);
if(ret == ENOMEM)
/* XXX */;
if(ret)
goto fail;
}
if (auth_context->flags & KRB5_AUTH_CONTEXT_DO_SEQUENCE) {
@@ -97,15 +100,45 @@ krb5_build_authenticator (krb5_context context,
auth_context->authenticator->cusec = auth->cusec;
}
memset (buf, 0, sizeof(buf));
ret = krb5_encode_Authenticator (context, buf + sizeof(buf) - 1, sizeof(buf),
auth, &len);
buf_size = 1024;
buf = malloc (buf_size);
if (buf == NULL) {
ret = ENOMEM;
goto fail;
}
ret = krb5_encrypt (context, buf + sizeof(buf) - len, len,
do {
ret = krb5_encode_Authenticator (context,
buf + buf_size - 1,
buf_size,
auth, &len);
if (ret) {
if (ret == ASN1_OVERFLOW) {
u_char *tmp;
buf_size *= 2;
tmp = realloc (tmp, buf_size);
if (tmp == NULL) {
ret = ENOMEM;
goto fail;
}
buf = tmp;
} else {
goto fail;
}
}
} while(ret == ASN1_OVERFLOW);
ret = krb5_encrypt (context, buf + buf_size - len, len,
enctype,
&cred->session,
result);
if (ret)
goto fail;
free (buf);
if (auth_result)
*auth_result = auth;
else {
@@ -115,4 +148,9 @@ krb5_build_authenticator (krb5_context context,
free (auth);
}
return ret;
fail:
free_Authenticator (auth);
free (auth);
free (buf);
return ret;
}