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- /*
- * $Source: /usr/src/kerberosIV/krb/RCS/get_pw_tkt.c,v $
- * $Author: kfall $
- *
- * Copyright 1986, 1987, 1988 by the Massachusetts Institute
- * of Technology.
- *
- * For copying and distribution information, please see the file
- * <mit-copyright.h>.
- */
-
- #ifndef lint
- static char *rcsid_get_pw_tkt_c =
- "$Header: /usr/src/kerberosIV/krb/RCS/get_pw_tkt.c,v 4.7 90/06/25 20:56:02 kfall Exp $";
- #endif /* lint */
-
-
- #include <mit-copyright.h>
- #include <des.h>
- #include <krb.h>
-
- /*
- * Get a ticket for the password-changing server ("changepw.KRB_MASTER").
- *
- * Given the name, instance, realm, and current password of the
- * principal for which the user wants a password-changing-ticket,
- * return either:
- *
- * GT_PW_BADPW if current password was wrong,
- * GT_PW_NULL if principal had a NULL password,
- * or the result of the krb_get_pw_in_tkt() call.
- *
- * First, try to get a ticket for "user.instance@realm" to use the
- * "changepw.KRB_MASTER" server (KRB_MASTER is defined in "krb.h").
- * The requested lifetime for the ticket is "1", and the current
- * password is the "cpw" argument given.
- *
- * If the password was bad, give up.
- *
- * If the principal had a NULL password in the Kerberos database
- * (indicating that the principal is known to Kerberos, but hasn't
- * got a password yet), try instead to get a ticket for the principal
- * "default.changepw@realm" to use the "changepw.KRB_MASTER" server.
- * Use the password "changepwkrb" instead of "cpw". Return GT_PW_NULL
- * if all goes well, otherwise the error.
- *
- * If this routine succeeds, a ticket and session key for either the
- * principal "user.instance@realm" or "default.changepw@realm" to use
- * the password-changing server will be in the user's ticket file.
- */
-
- get_pw_tkt(user,instance,realm,cpw)
- char *user;
- char *instance;
- char *realm;
- char *cpw;
- {
- int kerror;
-
- kerror = krb_get_pw_in_tkt(user, instance, realm, "changepw",
- KRB_MASTER, 1, cpw);
-
- if (kerror == INTK_BADPW)
- return(GT_PW_BADPW);
-
- if (kerror == KDC_NULL_KEY) {
- kerror = krb_get_pw_in_tkt("default","changepw",realm,"changepw",
- KRB_MASTER,1,"changepwkrb");
- if (kerror)
- return(kerror);
- return(GT_PW_NULL);
- }
-
- return(kerror);
- }
-