1 /* 2 * lib/krb5/krb/copy_data.c 3 * 4 * Copyright 1990,1991 by the Massachusetts Institute of Technology. 5 * All Rights Reserved. 6 * 7 * Export of this software from the United States of America may 8 * require a specific license from the United States Government. 9 * It is the responsibility of any person or organization contemplating 10 * export to obtain such a license before exporting. 11 * 12 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and 13 * distribute this software and its documentation for any purpose and 14 * without fee is hereby granted, provided that the above copyright 15 * notice appear in all copies and that both that copyright notice and 16 * this permission notice appear in supporting documentation, and that 17 * the name of M.I.T. not be used in advertising or publicity pertaining 18 * to distribution of the software without specific, written prior 19 * permission. Furthermore if you modify this software you must label 20 * your software as modified software and not distribute it in such a 21 * fashion that it might be confused with the original M.I.T. software. 22 * M.I.T. makes no representations about the suitability of 23 * this software for any purpose. It is provided "as is" without express 24 * or implied warranty. 25 * 26 * 27 * krb5_copy_data() 28 */ 29 30 #include "k5-int.h" 31 32 /* 33 * Copy a data structure, with fresh allocation. 34 */ 35 /*ARGSUSED*/ 36 krb5_error_code KRB5_CALLCONV 37 krb5_copy_data(krb5_context context, const krb5_data *indata, krb5_data **outdata) 38 { 39 krb5_data *tempdata; 40 41 if (!indata) { 42 *outdata = 0; 43 return 0; 44 } 45 46 if (!(tempdata = (krb5_data *)malloc(sizeof(*tempdata)))) 47 return ENOMEM; 48 49 tempdata->length = indata->length; 50 if (tempdata->length) { 51 if (!(tempdata->data = malloc(tempdata->length))) { 52 krb5_xfree(tempdata); 53 return ENOMEM; 54 } 55 memcpy((char *)tempdata->data, (char *)indata->data, tempdata->length); 56 } else 57 tempdata->data = 0; 58 tempdata->magic = KV5M_DATA; 59 *outdata = tempdata; 60 return 0; 61 } 62 63 krb5_error_code 64 krb5int_copy_data_contents(krb5_context context, const krb5_data *indata, krb5_data *outdata) 65 { 66 if (!indata) { 67 return EINVAL; 68 } 69 70 outdata->length = indata->length; 71 if (outdata->length) { 72 if (!(outdata->data = malloc(outdata->length))) { 73 return ENOMEM; 74 } 75 memcpy((char *)outdata->data, (char *)indata->data, outdata->length); 76 } else 77 outdata->data = 0; 78 outdata->magic = KV5M_DATA; 79 80 return 0; 81 } 82