5218 posix definition of NULL
correct unistd.h and iso/stddef_iso.h
update gate source affected

*** 17,38 ****
     krb5_cc_cursor cur;
     krb5_creds creds;
  
     flags = 0;                           /* turns off OPENCLOSE mode */
     /* Solaris Kerberos */
!    if ((code = krb5_cc_set_flags(context, incc, flags)) != NULL)
        return(code);
     /* Solaris Kerberos */
!    if ((code = krb5_cc_set_flags(context, outcc, flags)) != NULL)
        return(code);
  
     /* Solaris Kerberos */
!    if ((code = krb5_cc_start_seq_get(context, incc, &cur)) != NULL)
        goto cleanup;
  
     /* Solaris Kerberos */
!    while ((code = krb5_cc_next_cred(context, incc, &cur, &creds)) == NULL) {
        if (krb5_principal_compare(context, princ, creds.server))
           continue;
  
        code = krb5_cc_store_cred(context, outcc, &creds);
        krb5_free_cred_contents(context, &creds);
--- 17,38 ----
     krb5_cc_cursor cur;
     krb5_creds creds;
  
     flags = 0;                           /* turns off OPENCLOSE mode */
     /* Solaris Kerberos */
!    if ((code = krb5_cc_set_flags(context, incc, flags)) != 0)
        return(code);
     /* Solaris Kerberos */
!    if ((code = krb5_cc_set_flags(context, outcc, flags)) != 0)
        return(code);
  
     /* Solaris Kerberos */
!    if ((code = krb5_cc_start_seq_get(context, incc, &cur)) != 0)
        goto cleanup;
  
     /* Solaris Kerberos */
!    while ((code = krb5_cc_next_cred(context, incc, &cur, &creds)) == 0) {
        if (krb5_principal_compare(context, princ, creds.server))
           continue;
  
        code = krb5_cc_store_cred(context, outcc, &creds);
        krb5_free_cred_contents(context, &creds);
*** 163,177 ****
        /* insert the initial cred into the ccache */
  
        if ((ret = krb5_cc_resolve(context, "MEMORY:rd_req", &ccache)))
           goto cleanup;
        /* Solaris Kerberos */
!       if ((ret = krb5_cc_initialize(context, ccache, creds->client)) != NULL)
           goto cleanup;
  
        /* Solaris Kerberos */
!       if ((ret = krb5_cc_store_cred(context, ccache, creds)) != NULL)
           goto cleanup;
  
        /* set up for get_creds */
        memset(&in_creds, 0, sizeof(in_creds));
        in_creds.client = creds->client;
--- 163,177 ----
        /* insert the initial cred into the ccache */
  
        if ((ret = krb5_cc_resolve(context, "MEMORY:rd_req", &ccache)))
           goto cleanup;
        /* Solaris Kerberos */
!       if ((ret = krb5_cc_initialize(context, ccache, creds->client)) != 0)
           goto cleanup;
  
        /* Solaris Kerberos */
!       if ((ret = krb5_cc_store_cred(context, ccache, creds)) != 0)
           goto cleanup;
  
        /* set up for get_creds */
        memset(&in_creds, 0, sizeof(in_creds));
        in_creds.client = creds->client;
*** 210,223 ****
             krb5_ccache retcc;
  
             retcc = NULL;
  
             /* Solaris Kerberos */
!            if (((ret = krb5_cc_resolve(context, "MEMORY:rd_req2", &retcc)) != NULL) ||
!                ((ret = krb5_cc_initialize(context, retcc, creds->client)) != NULL) ||
                 ((ret = krb5_cc_copy_creds_except(context, ccache, retcc,
!                                                 creds->server)) != NULL)) {
                 /* Solaris Kerberos */
                 if (retcc)
                     (void) krb5_cc_destroy(context, retcc);
             } else {
                 *ccache_arg = retcc;
--- 210,223 ----
             krb5_ccache retcc;
  
             retcc = NULL;
  
             /* Solaris Kerberos */
!            if (((ret = krb5_cc_resolve(context, "MEMORY:rd_req2", &retcc)) != 0) ||
!                ((ret = krb5_cc_initialize(context, retcc, creds->client)) != 0) ||
                 ((ret = krb5_cc_copy_creds_except(context, ccache, retcc,
!                                                 creds->server)) != 0)) {
                 /* Solaris Kerberos */
                 if (retcc)
                     (void) krb5_cc_destroy(context, retcc);
             } else {
                 *ccache_arg = retcc;