krb5 commit [krb5-1.8]: Make password change work without default realm

[Tom Yu]

https://github.com/krb5/krb5/commit/3d752d99bb571c2dba7416d22c96a48e0c0f8802
commit 3d752d99bb571c2dba7416d22c96a48e0c0f8802
Author: Greg Hudson <ghudson at mit.edu>
Date:   Thu May 10 17:34:01 2012 +0000

    Make password change work without default realm
    
    This fix is not very general or clean, but is suitable for backporting
    because it is minimally invasive.  A more comprehensive fix will
    follow.
    
    (cherry picked from commit b9ff95a51ef11742abc9687a70b6d8324eda6803)
    
    ticket: 7177 (new)
    version_fixed: 1.8.7
    status: resolved

 src/lib/krb5/krb/get_in_tkt.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/src/lib/krb5/krb/get_in_tkt.c b/src/lib/krb5/krb/get_in_tkt.c
index 9c97998..1709839 100644
--- a/src/lib/krb5/krb/get_in_tkt.c
+++ b/src/lib/krb5/krb/get_in_tkt.c
@@ -992,6 +992,11 @@ build_in_tkt_name(krb5_context context,
     *server = NULL;
 
     if (in_tkt_service) {
+        /* Minimally invasive fix for inability to change password with no
+         * default realm, for backporting. */
+        if (strcmp(in_tkt_service, "kadmin/changepw") == 0)
+            in_tkt_service = "kadmin/changepw@";
+
         /* this is ugly, because so are the data structures involved.  I'm
            in the library, so I'm going to manipulate the data structures
            directly, otherwise, it will be worse. */