svn rev #25796: trunk/src/lib/krb5/asn.1/

[ghudson@MIT.EDU]

http://src.mit.edu/fisheye/changelog/krb5/?cs=25796
Commit By: ghudson
Log Message:
Avoid malloc(0) in ASN.1 bytestring decode

In k5_asn1_decode_bytestring, just leave *str_out as NULL if len is 0,
instead of calling malloc(0) and possibly returning a spurious ENOMEM.


Changed Files:
U   trunk/src/lib/krb5/asn.1/asn1_encode.c
Modified: trunk/src/lib/krb5/asn.1/asn1_encode.c
===================================================================
--- trunk/src/lib/krb5/asn.1/asn1_encode.c	2012-03-28 21:11:06 UTC (rev 25795)
+++ trunk/src/lib/krb5/asn.1/asn1_encode.c	2012-03-31 00:38:16 UTC (rev 25796)
@@ -234,6 +234,8 @@
 
     *str_out = NULL;
     *len_out = 0;
+    if (len == 0)
+        return 0;
     str = malloc(len);
     if (str == NULL)
         return ENOMEM;