remove (krb5_enctype) cast for ETYPE_xxx

Now that ETYPE_xxx names are macros to the KRB5_ENCTYPE_xxx
symbols there is no longer a need to cast to (krb5_enctype).

Change-Id: Ib561f6e45346abac7a53eb1db0bfef60ee3bcb74

kdc/kerberos5.c

@@ -95,9 +95,9 @@ _kdc_is_weak_exception(krb5_principal principal, krb5_enctype etype)
 {
     if (principal->name.name_string.len > 0 &&
 	strcmp(principal->name.name_string.val[0], "afs") == 0 &&
-	(etype == (krb5_enctype)ETYPE_DES_CBC_CRC
+	(etype == ETYPE_DES_CBC_CRC
-	 || etype == (krb5_enctype)ETYPE_DES_CBC_MD4
+	 || etype == ETYPE_DES_CBC_MD4
-	 || etype == (krb5_enctype)ETYPE_DES_CBC_MD5))
+	 || etype == ETYPE_DES_CBC_MD5))
 	return TRUE;
     return FALSE;
 }
@@ -165,7 +165,7 @@ _kdc_find_etype(astgs_request_t r, uint32_t flags,
     krb5_principal request_princ;
     krb5_error_code ret;
     krb5_salt def_salt;
-    krb5_enctype enctype = (krb5_enctype)ETYPE_NULL;
+    krb5_enctype enctype = ETYPE_NULL;
     const krb5_enctype *p;
     Key *key = NULL;
     size_t i, k, m;
@@ -224,14 +224,14 @@ _kdc_find_etype(astgs_request_t r, uint32_t flags,
 	/* drive the search with local supported enctypes list */
 	p = krb5_kerberos_enctypes(r->context);
 	for (i = 0;
-	    p[i] != (krb5_enctype)ETYPE_NULL && enctype == (krb5_enctype)ETYPE_NULL;
+	    p[i] != ETYPE_NULL && enctype == ETYPE_NULL;
 	    i++) {
 	    if (krb5_enctype_valid(r->context, p[i]) != 0 &&
                 !_kdc_is_weak_exception(princ->principal, p[i]))
 		continue;
 
 	    /* check that the client supports it too */
-	    for (k = 0; k < len && enctype == (krb5_enctype)ETYPE_NULL; k++) {
+	    for (k = 0; k < len && enctype == ETYPE_NULL; k++) {
 
 		if (p[i] != etypes[k])
 		    continue;
@@ -316,7 +316,7 @@ _kdc_find_etype(astgs_request_t r, uint32_t flags,
 	}
     }
 
-    if (enctype == (krb5_enctype)ETYPE_NULL) {
+    if (enctype == ETYPE_NULL) {
         /*
          * if the service principal is one for which there is a known 1DES
          * exception and no other enctype matches both the client request and

kdc/misc.c

@@ -271,7 +271,7 @@ _kdc_get_preferred_key(krb5_context context,
     if (config->use_strongest_server_key) {
 	const krb5_enctype *p = krb5_kerberos_enctypes(context);
 
-	for (i = 0; p[i] != (krb5_enctype)ETYPE_NULL; i++) {
+	for (i = 0; p[i] != ETYPE_NULL; i++) {
 	    if (krb5_enctype_valid(context, p[i]) != 0 &&
 		!_kdc_is_weak_exception(h->principal, p[i]))
 		continue;

kdc/string2key.c

@@ -128,9 +128,9 @@ main(int argc, char **argv)
     if(ret)
 	krb5_err(context, 1, ret, "krb5_string_to_enctype");
 
-    if((etype != (krb5_enctype)ETYPE_DES_CBC_CRC &&
+    if((etype != ETYPE_DES_CBC_CRC &&
-	etype != (krb5_enctype)ETYPE_DES_CBC_MD4 &&
+	etype != ETYPE_DES_CBC_MD4 &&
-	etype != (krb5_enctype)ETYPE_DES_CBC_MD5) &&
+	etype != ETYPE_DES_CBC_MD5) &&
        (afs || version4)) {
 	if(!version5) {
 	    etype = ETYPE_DES_CBC_CRC;

lib/krb5/crypto.c

@@ -2575,7 +2575,7 @@ krb5_crypto_init(krb5_context context,
     ALLOC(*crypto, 1);
     if (*crypto == NULL)
 	return krb5_enomem(context);
-    if(etype == (krb5_enctype)ETYPE_NULL)
+    if(etype == ETYPE_NULL)
 	etype = key->keytype;
     (*crypto)->et = _krb5_find_enctype(etype);
     if((*crypto)->et == NULL || ((*crypto)->et->flags & F_DISABLED)) {

lib/krb5/generate_subkey.c

@@ -58,7 +58,7 @@ krb5_generate_subkey_extended(krb5_context context,
     if (*subkey == NULL)
 	return krb5_enomem(context);
 
-    if (etype == (krb5_enctype)ETYPE_NULL)
+    if (etype == ETYPE_NULL)
 	etype = key->keytype; /* use session key etype */
 
     /* XXX should we use the session key as input to the RF? */

lib/krb5/get_in_tkt.c

@@ -115,7 +115,7 @@ add_padata(krb5_context context,
     if (!enctypes) {
 	enctypes = context->etypes;
 	netypes = 0;
-	for (ep = enctypes; *ep != (krb5_enctype)ETYPE_NULL; ep++)
+	for (ep = enctypes; *ep != ETYPE_NULL; ep++)
 	    netypes++;
     }
     pa2 = realloc (md->val, (md->len + netypes) * sizeof(*md->val));

lib/krb5/init_creds_pw.c

@@ -1087,7 +1087,7 @@ add_enc_ts_padata(krb5_context context,
     if (!enctypes) {
 	enctypes = context->etypes;
 	netypes = 0;
-	for (ep = enctypes; *ep != (krb5_enctype)ETYPE_NULL; ep++)
+	for (ep = enctypes; *ep != ETYPE_NULL; ep++)
 	    netypes++;
     }
 

lib/krb5/rd_cred.c

@@ -96,7 +96,7 @@ krb5_rd_cred(krb5_context context,
 	goto out;
     }
 
-    if (cred.enc_part.etype == (krb5_enctype)ETYPE_NULL) {
+    if (cred.enc_part.etype == ETYPE_NULL) {
 	/* DK: MIT GSS-API Compatibility */
 	enc_krb_cred_part_data.length = cred.enc_part.cipher.length;
 	enc_krb_cred_part_data.data   = cred.enc_part.cipher.data;

lib/krb5/rd_req.c

@@ -474,7 +474,7 @@ krb5_verify_ap_req2(krb5_context context,
 
     if (ap_req_options) {
 	*ap_req_options = 0;
-	if (ac->keytype != (krb5_enctype)ETYPE_NULL)
+	if (ac->keytype != ETYPE_NULL)
 	    *ap_req_options |= AP_OPTS_USE_SUBKEY;
 	if (ap_req->ap_options.use_session_key)
 	    *ap_req_options |= AP_OPTS_USE_SESSION_KEY;