X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=lib%2Fhashtable.c;h=c5a2b08becf4e9e0ebfac9708f178b8575812ffe;hb=459f1da88b42e9a795e51c73fcd55fd339fc594b;hp=6050dd0829f9ac3ce3bc399d1cc7e9428af3afa0;hpb=be29df6a1ac286e6c482828db28ca96e187c7e00;p=oweals%2Fu-boot.git

diff --git a/lib/hashtable.c b/lib/hashtable.c
index 6050dd0829..c5a2b08bec 100644
--- a/lib/hashtable.c
+++ b/lib/hashtable.c
@@ -10,20 +10,7 @@
  * This file is part of the GNU C Library.
  * Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1993.
  *
- * The GNU C Library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * The GNU C Library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with the GNU C Library; if not, write to the Free
- * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- * 02111-1307 USA.
+ * SPDX-License-Identifier:	LGPL-2.1+
  */
 
 #include <errno.h>
@@ -830,7 +817,7 @@ int himport_r(struct hsearch_data *htab,
 	 * size of 8 per entry (= safety factor of ~5) should provide enough
 	 * safety margin for any existing environment definitions and still
 	 * allow for more than enough dynamic additions. Note that the
-	 * "size" argument is supposed to give the maximum enviroment size
+	 * "size" argument is supposed to give the maximum environment size
 	 * (CONFIG_ENV_SIZE).  This heuristics will result in
 	 * unreasonably large numbers (and thus memory footprint) for
 	 * big flash environments (>8,000 entries for 64 KB
@@ -901,6 +888,12 @@ int himport_r(struct hsearch_data *htab,
 		*sp++ = '\0';	/* terminate value */
 		++dp;
 
+		if (*name == 0) {
+			debug("INSERT: unable to use an empty key\n");
+			__set_errno(EINVAL);
+			return 0;
+		}
+
 		/* Skip variables which are not supposed to be processed */
 		if (!drop_var_from_set(name, nvars, localvars))
 			continue;