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Subject: krb5-1.5: check if princ is NULL in krb5_realm_compare and krb5_principal_compare
This patch add a check if princ is NULL to
src/lib/krb5/krb/princ_comp.c
--- src/lib/krb5/krb/princ_comp.c 2002-09-02 21:13:46.000000000 -0400
+++ src/lib/krb5/krb/princ_comp.c 2005-06-29 13:56:55.000000000 -0400
@@ -33,6 +33,13 @@
krb5_boolean KRB5_CALLCONV
krb5_realm_compare(krb5_context context, krb5_const_principal princ1, krb5_const_principal princ2)
{
+ if ((princ1 == NULL) || (princ2 == NULL))
+ return FALSE;
+
+ if ((krb5_princ_realm(context, princ1) == NULL) ||
+ (krb5_princ_realm(context, princ2) == NULL))
+ return FALSE;
+
if (krb5_princ_realm(context, princ1)->length !=
krb5_princ_realm(context, princ2)->length ||
memcmp (krb5_princ_realm(context, princ1)->data,
@@ -49,6 +56,9 @@
register int i;
krb5_int32 nelem;

+ if ((princ1 == NULL) || (princ2 == NULL))
+ return FALSE;
+
nelem = krb5_princ_size(context, princ1);
if (nelem != krb5_princ_size(context, princ2))
return FALSE;