* nis/nis_table.c (nis_list): Fix memory handling in error case.

2005-12-07  Ulrich Drepper  <drepper@redhat.com>

	* nis/nis_table.c (nis_list): Remove have_tablepath, just use the
	pointer value itself.

1 files changed, 40 insertions, 39 deletions

diff --git a/nis/nis_table.c b/nis/nis_table.c
index 6761d37..2ef28ac 100644
--- a/nis/nis_table.c
+++ b/nis/nis_table.c
@@ -164,8 +164,8 @@ nis_list (const_nis_name name, unsigned int flags,
   nis_name namebuf[2] = {NULL, NULL};
   int name_nr = 0;
   nis_cb *cb = NULL;
-  char *tableptr, *tablepath = NULL;
-  int have_tablepath = 0;
+  char *tableptr;
+  char *tablepath = NULL;
   int first_try = 0; /* Do we try the old binding at first ? */
 
   if (res == NULL)
@@ -198,6 +198,7 @@ nis_list (const_nis_name name, unsigned int flags,
       ibreq->ibr_name = strdup (names[name_nr]);
       if (ibreq->ibr_name == NULL)
 	{
+	  nis_freenames (names);
 	  nis_free_request (ibreq);
 	  NIS_RES_STATUS (res) = NIS_NOMEMORY;
 	  return res;
@@ -220,30 +221,24 @@ nis_list (const_nis_name name, unsigned int flags,
 
       status = __nisfind_server (ibreq->ibr_name, &dir);
       if (status != NIS_SUCCESS)
-        {
-	  nis_free_request (ibreq);
+	{
           NIS_RES_STATUS (res) = status;
-          return res;
-        }
+          goto fail3;
+	}
 
       status = __nisbind_create (&bptr, dir->do_servers.do_servers_val,
-                                 dir->do_servers.do_servers_len, flags);
+				 dir->do_servers.do_servers_len, flags);
       if (status != NIS_SUCCESS)
         {
-	  nis_free_request (ibreq);
           NIS_RES_STATUS (res) = status;
-          nis_free_directory (dir);
-          return res;
+	  goto fail2;
         }
 
       while (__nisbind_connect (&bptr) != NIS_SUCCESS)
 	if (__nisbind_next (&bptr) != NIS_SUCCESS)
 	  {
-	    __nisbind_destroy (&bptr);
-	    nis_free_directory (dir);
-	    nis_free_request (ibreq);
 	    NIS_RES_STATUS (res) = NIS_NAMEUNREACHABLE;
-	    return res;
+	    goto fail;
 	  }
 
       if (callback != NULL)
@@ -284,8 +279,22 @@ nis_list (const_nis_name name, unsigned int flags,
 		  strdup (NIS_RES_OBJECT (res)->LI_data.li_name);
 		if (ibreq->ibr_name == NULL)
 		  {
-		    nis_free_request (ibreq);
 		    NIS_RES_STATUS (res) = NIS_NOMEMORY;
+		  fail:
+		    __nisbind_destroy (&bptr);
+		  fail2:
+		    nis_free_directory (dir);
+		  fail3:
+		    free (tablepath);
+		    if (cb)
+		      {
+			__nis_destroy_callback (cb);
+			ibreq->ibr_cbhost.ibr_cbhost_len = 0;
+			ibreq->ibr_cbhost.ibr_cbhost_val = NULL;
+		      }
+		    if (names != namebuf)
+		      nis_freenames (names);
+		    nis_free_request (ibreq);
 		    return res;
 		  }
 		if (NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_len)
@@ -308,13 +317,7 @@ nis_list (const_nis_name name, unsigned int flags,
 		nis_freeresult (res);
 		res = calloc (1, sizeof (nis_result));
 		if (res == NULL)
-		  {
-		    if (have_tablepath)
-		      free (tablepath);
-		    __nisbind_destroy (&bptr);
-		    nis_free_directory (dir);
-		    return NULL;
-		  }
+		  goto fail;
 #endif
 		first_try = 1; /* Try at first the old binding */
 		goto again;
@@ -322,11 +325,10 @@ nis_list (const_nis_name name, unsigned int flags,
 	    else if ((flags & FOLLOW_PATH)
 		     && NIS_RES_STATUS (res) == NIS_PARTIAL)
 	      {
-		if (!have_tablepath)
+		if (tablepath == NULL)
 		  {
 		    tablepath = __get_tablepath (ibreq->ibr_name, &bptr);
 		    tableptr = tablepath;
-		    have_tablepath = 1;
 		  }
 		if (tableptr == NULL)
 		  {
@@ -340,9 +342,8 @@ nis_list (const_nis_name name, unsigned int flags,
 		    ibreq->ibr_name = strdup ("");
 		    if (ibreq->ibr_name == NULL)
 		      {
-			nis_free_request (ibreq);
 			NIS_RES_STATUS (res) = NIS_NOMEMORY;
-			return res;
+			goto fail;
 		      }
 		    ++done;
 		  }
@@ -358,20 +359,20 @@ nis_list (const_nis_name name, unsigned int flags,
 		    xdr_free ((xdrproc_t) _xdr_nis_result, (char *)res);
 		    memset (res, '\0', sizeof (*res));
 		    if (ibreq->ibr_name == NULL)
+		      {
+			NIS_RES_STATUS (res) = NIS_NOMEMORY;
+			goto fail;
+		      }
 #else
 		    nis_freeresult (res);
 		    res = calloc (1, sizeof (nis_result));
 		    if (res == NULL || ibreq->ibr_name == NULL)
-#endif
 		      {
 			free (res);
-			nis_free_request (ibreq);
-			if (have_tablepath)
-			  free (tablepath);
-			__nisbind_destroy (&bptr);
-			nis_free_directory (dir);
-			return NULL;
+			res = NULL;
+			goto fail;
 		      }
+#endif
 		    first_try = 1;
 		    goto again;
 		  }
@@ -389,11 +390,10 @@ nis_list (const_nis_name name, unsigned int flags,
 		  ++done;
 		else
 		  {
-		    if (!have_tablepath)
+		    if (tablepath == NULL)
 		      {
 			tablepath = __get_tablepath (ibreq->ibr_name, &bptr);
 			tableptr = tablepath;
-			have_tablepath = 1;
 		      }
 		    if (tableptr == NULL)
 		      {
@@ -411,9 +411,8 @@ nis_list (const_nis_name name, unsigned int flags,
 		      ibreq->ibr_name = strdup (ibreq->ibr_name);
 		    if (ibreq->ibr_name == NULL)
 		      {
-			nis_free_request (ibreq);
 			NIS_RES_STATUS (res) = NIS_NOMEMORY;
-			return res;
+			goto fail;
 		      }
 		  }
 	      }
@@ -462,9 +461,8 @@ nis_list (const_nis_name name, unsigned int flags,
 		ibreq->ibr_name = strdup (names[name_nr]);
 		if (ibreq->ibr_name == NULL)
 		  {
-		    nis_free_request (ibreq);
 		    NIS_RES_STATUS (res) = NIS_NOMEMORY;
-		    return res;
+		    goto fail;
 		  }
 		first_try = 1; /* Try old binding at first */
 		goto again;
@@ -478,12 +476,15 @@ nis_list (const_nis_name name, unsigned int flags,
 	  __nis_destroy_callback (cb);
 	  ibreq->ibr_cbhost.ibr_cbhost_len = 0;
 	  ibreq->ibr_cbhost.ibr_cbhost_val = NULL;
+	  cb = NULL;
 	}
 
       __nisbind_destroy (&bptr);
       nis_free_directory (dir);
     }
 
+  free (tablepath);
+
   if (names != namebuf)
     nis_freenames (names);