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/*
* lib/krb5/krb/copy_princ.c
*
* Copyright 1990 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* krb5_copy_principal()
*/
#include "k5-int.h"
/*
* Copy a principal structure, with fresh allocation.
*/
krb5_error_code
krb5_copy_principal(context, inprinc, outprinc)
krb5_context context;
krb5_const_principal inprinc;
krb5_principal *outprinc;
{
register krb5_principal tempprinc;
register int i, nelems;
tempprinc = (krb5_principal)malloc(sizeof(krb5_principal_data));
if (tempprinc == 0)
return ENOMEM;
#ifdef HAVE_C_STRUCTURE_ASSIGNMENT
*tempprinc = *inprinc; /* Copy all of the non-allocated pieces */
#else
memcpy(tempprinc, inprinc, sizeof(krb5_principal_data));
#endif
nelems = (int) krb5_princ_size(context, inprinc);
tempprinc->data = malloc(nelems * sizeof(krb5_data));
if (tempprinc->data == 0) {
free((char *)tempprinc);
return ENOMEM;
}
for (i = 0; i < nelems; i++) {
int len = krb5_princ_component(context, inprinc, i)->length;
krb5_princ_component(context, tempprinc, i)->length = len;
if (((krb5_princ_component(context, tempprinc, i)->data =
malloc(len)) == 0) && len) {
while (--i >= 0)
free(krb5_princ_component(context, tempprinc, i)->data);
free (tempprinc->data);
free (tempprinc);
return ENOMEM;
}
if (len)
memcpy(krb5_princ_component(context, tempprinc, i)->data,
krb5_princ_component(context, inprinc, i)->data, len);
}
tempprinc->realm.data =
malloc(tempprinc->realm.length = inprinc->realm.length);
if (!tempprinc->realm.data && tempprinc->realm.length) {
for (i = 0; i < nelems; i++)
free(krb5_princ_component(context, tempprinc, i)->data);
free(tempprinc->data);
free(tempprinc);
return ENOMEM;
}
if (tempprinc->realm.length)
memcpy(tempprinc->realm.data, inprinc->realm.data,
inprinc->realm.length);
*outprinc = tempprinc;
return 0;
}
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