svn rev #21892: trunk/src/lib/krb5/keytab/

[ghudson@MIT.EDU]

http://src.mit.edu/fisheye/changelog/krb5/?cs=21892
Commit By: ghudson
Log Message:
In krb5_ktfileint_find_slot, check for an error return from ftell.
(Such an error will never happen in any reasonable stdio
implementation but it's more correct to check.)



Changed Files:
U   trunk/src/lib/krb5/keytab/kt_file.c
Modified: trunk/src/lib/krb5/keytab/kt_file.c
===================================================================
--- trunk/src/lib/krb5/keytab/kt_file.c	2009-02-05 18:26:47 UTC (rev 21891)
+++ trunk/src/lib/krb5/keytab/kt_file.c	2009-02-05 18:34:57 UTC (rev 21892)
@@ -1722,6 +1722,9 @@
                  * Make sure we zero any trailing data.
                  */
                 zero_point = ftell(KTFILEP(id));
+                if (zero_point < 0) {
+                    return errno;
+                }
                 while ((size = fread(iobuf, 1, sizeof(iobuf), KTFILEP(id)))) {
                     if (size != sizeof(iobuf)) {
                         remainder = size % sizeof(krb5_int32);