1 /* 2 * src/lib/krb5/asn.1/asn1_get.h 3 * 4 * Copyright 1994 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 #ifndef __ASN1_GET_H__ 28 #define __ASN1_GET_H__ 29 30 /* ASN.1 substructure decoding procedures */ 31 32 #include "k5-int.h" 33 #include "krbasn1.h" 34 #include "asn1buf.h" 35 36 typedef struct { 37 asn1_class asn1class; 38 asn1_construction construction; 39 asn1_tagnum tagnum; 40 unsigned int length; 41 int indef; 42 } taginfo; 43 44 asn1_error_code asn1_get_tag_2 (asn1buf *buf, taginfo *tinfo); 45 46 #if 0 47 asn1_error_code asn1_get_tag_indef 48 (asn1buf *buf, 49 asn1_class *Class, 50 asn1_construction *construction, 51 asn1_tagnum *tagnum, 52 unsigned int *retlen, int *indef); 53 54 asn1_error_code asn1_get_tag 55 (asn1buf *buf, 56 asn1_class *Class, 57 asn1_construction *construction, 58 asn1_tagnum *tagnum, 59 unsigned int *retlen); 60 /* requires *buf is allocated 61 effects Decodes the tag in *buf. If class != NULL, returns 62 the class in *Class. Similarly, the construction, 63 tag number, and length are returned in *construction, 64 *tagnum, and *retlen, respectively. 65 If *buf is empty to begin with, 66 *tagnum is set to ASN1_TAGNUM_CEILING. 67 Returns ASN1_OVERRUN if *buf is exhausted during the parse. */ 68 #endif 69 70 asn1_error_code asn1_get_sequence 71 (asn1buf *buf, unsigned int *retlen, int *indef); 72 /* requires *buf is allocated 73 effects Decodes a tag from *buf and returns ASN1_BAD_ID if it 74 doesn't have a sequence ID. If retlen != NULL, the 75 associated length is returned in *retlen. */ 76 77 #endif 78