1 files changed, 28 insertions, 35 deletions

diff --git a/ssh-agent.c b/ssh-agent.c
index b9498e6ef..3f94851eb 100644
--- a/ssh-agent.c
+++ b/ssh-agent.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh-agent.c,v 1.172 2011/06/03 01:37:40 dtucker Exp $ */
+/* $OpenBSD: ssh-agent.c,v 1.173 2013/05/17 00:13:14 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -172,10 +172,9 @@ static void
 free_identity(Identity *id)
 {
         key_free(id->key);
-        if (id->provider != NULL)
-                xfree(id->provider);
-        xfree(id->comment);
-        xfree(id);
+        free(id->provider);
+        free(id->comment);
+        free(id);
 }
 
 /* return matching private key for given public key */
@@ -203,7 +202,7 @@ confirm_key(Identity *id)
         if (ask_permission("Allow use of key %s?\nKey fingerprint %s.",
             id->comment, p))
                 ret = 0;
-        xfree(p);
+        free(p);
 
         return (ret);
 }
@@ -230,7 +229,7 @@ process_request_identities(SocketEntry *e, int version)
                         u_int blen;
                         key_to_blob(id->key, &blob, &blen);
                         buffer_put_string(&msg, blob, blen);
-                        xfree(blob);
+                        free(blob);
                 }
                 buffer_put_cstring(&msg, id->comment);
         }
@@ -348,10 +347,9 @@ process_sign_request2(SocketEntry *e)
         buffer_append(&e->output, buffer_ptr(&msg),
             buffer_len(&msg));
         buffer_free(&msg);
-        xfree(data);
-        xfree(blob);
-        if (signature != NULL)
-                xfree(signature);
+        free(data);
+        free(blob);
+        free(signature);
         datafellows = odatafellows;
 }
 
@@ -378,7 +376,7 @@ process_remove_identity(SocketEntry *e, int version)
         case 2:
                 blob = buffer_get_string(&e->request, &blen);
                 key = key_from_blob(blob, blen);
-                xfree(blob);
+                free(blob);
                 break;
         }
         if (key != NULL) {
@@ -509,7 +507,7 @@ process_add_identity(SocketEntry *e, int version)
                         cert = buffer_get_string(&e->request, &len);
                         if ((k = key_from_blob(cert, len)) == NULL)
                                 fatal("Certificate parse failed");
-                        xfree(cert);
+                        free(cert);
                         key_add_private(k);
                         buffer_get_bignum2(&e->request, k->dsa->priv_key);
                         break;
@@ -520,7 +518,7 @@ process_add_identity(SocketEntry *e, int version)
                         curve = buffer_get_string(&e->request, NULL);
                         if (k->ecdsa_nid != key_curve_name_to_nid(curve))
                                 fatal("%s: curve names mismatch", __func__);
-                        xfree(curve);
+                        free(curve);
                         k->ecdsa = EC_KEY_new_by_curve_name(k->ecdsa_nid);
                         if (k->ecdsa == NULL)
                                 fatal("%s: EC_KEY_new_by_curve_name failed",
@@ -551,7 +549,7 @@ process_add_identity(SocketEntry *e, int version)
                         cert = buffer_get_string(&e->request, &len);
                         if ((k = key_from_blob(cert, len)) == NULL)
                                 fatal("Certificate parse failed");
-                        xfree(cert);
+                        free(cert);
                         key_add_private(k);
                         if ((exponent = BN_new()) == NULL)
                                 fatal("%s: BN_new failed", __func__);
@@ -583,7 +581,7 @@ process_add_identity(SocketEntry *e, int version)
                         cert = buffer_get_string(&e->request, &len);
                         if ((k = key_from_blob(cert, len)) == NULL)
                                 fatal("Certificate parse failed");
-                        xfree(cert);
+                        free(cert);
                         key_add_private(k);
                         buffer_get_bignum2(&e->request, k->rsa->d);
                         buffer_get_bignum2(&e->request, k->rsa->iqmp);
@@ -591,11 +589,11 @@ process_add_identity(SocketEntry *e, int version)
                         buffer_get_bignum2(&e->request, k->rsa->q);
                         break;
                 default:
-                        xfree(type_name);
+                        free(type_name);
                         buffer_clear(&e->request);
                         goto send;
                 }
-                xfree(type_name);
+                free(type_name);
                 break;
         }
         /* enable blinding */
@@ -613,7 +611,7 @@ process_add_identity(SocketEntry *e, int version)
         }
         comment = buffer_get_string(&e->request, NULL);
         if (k == NULL) {
-                xfree(comment);
+                free(comment);
                 goto send;
         }
         while (buffer_len(&e->request)) {
@@ -627,7 +625,7 @@ process_add_identity(SocketEntry *e, int version)
                 default:
                         error("process_add_identity: "
                             "Unknown constraint type %d", type);
-                        xfree(comment);
+                        free(comment);
                         key_free(k);
                         goto send;
                 }
@@ -643,7 +641,7 @@ process_add_identity(SocketEntry *e, int version)
                 tab->nentries++;
         } else {
                 key_free(k);
-                xfree(id->comment);
+                free(id->comment);
         }
         id->comment = comment;
         id->death = death;
@@ -665,7 +663,7 @@ process_lock_agent(SocketEntry *e, int lock)
         if (locked && !lock && strcmp(passwd, lock_passwd) == 0) {
                 locked = 0;
                 memset(lock_passwd, 0, strlen(lock_passwd));
-                xfree(lock_passwd);
+                free(lock_passwd);
                 lock_passwd = NULL;
                 success = 1;
         } else if (!locked && lock) {
@@ -674,7 +672,7 @@ process_lock_agent(SocketEntry *e, int lock)
                 success = 1;
         }
         memset(passwd, 0, strlen(passwd));
-        xfree(passwd);
+        free(passwd);
 
         buffer_put_int(&e->output, 1);
         buffer_put_char(&e->output,
@@ -747,12 +745,9 @@ process_add_smartcard_key(SocketEntry *e)
                 keys[i] = NULL;
         }
 send:
-        if (pin)
-                xfree(pin);
-        if (provider)
-                xfree(provider);
-        if (keys)
-                xfree(keys);
+        free(pin);
+        free(provider);
+        free(keys);
         buffer_put_int(&e->output, 1);
         buffer_put_char(&e->output,
             success ? SSH_AGENT_SUCCESS : SSH_AGENT_FAILURE);
@@ -768,7 +763,7 @@ process_remove_smartcard_key(SocketEntry *e)
 
         provider = buffer_get_string(&e->request, NULL);
         pin = buffer_get_string(&e->request, NULL);
-        xfree(pin);
+        free(pin);
 
         for (version = 1; version < 3; version++) {
                 tab = idtab_lookup(version);
@@ -786,7 +781,7 @@ process_remove_smartcard_key(SocketEntry *e)
         else
                 error("process_remove_smartcard_key:"
                     " pkcs11_del_provider failed");
-        xfree(provider);
+        free(provider);
         buffer_put_int(&e->output, 1);
         buffer_put_char(&e->output,
             success ? SSH_AGENT_SUCCESS : SSH_AGENT_FAILURE);
@@ -951,10 +946,8 @@ prepare_select(fd_set **fdrp, fd_set **fdwp, int *fdl, u_int *nallocp,
 
         sz = howmany(n+1, NFDBITS) * sizeof(fd_mask);
         if (*fdrp == NULL || sz > *nallocp) {
-                if (*fdrp)
-                        xfree(*fdrp);
-                if (*fdwp)
-                        xfree(*fdwp);
+                free(*fdrp);
+                free(*fdwp);
                 *fdrp = xmalloc(sz);
                 *fdwp = xmalloc(sz);
                 *nallocp = sz;