diff options
Diffstat (limited to 'src/lib/crypto/krb/keyed_checksum_types.c')
-rw-r--r-- | src/lib/crypto/krb/keyed_checksum_types.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/lib/crypto/krb/keyed_checksum_types.c b/src/lib/crypto/krb/keyed_checksum_types.c new file mode 100644 index 0000000..04aa447 --- /dev/null +++ b/src/lib/crypto/krb/keyed_checksum_types.c @@ -0,0 +1,89 @@ +/* + * Copyright (C) 1998 by the FundsXpress, INC. + * + * 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 FundsXpress. not be used in advertising or publicity pertaining + * to distribution of the software without specific, written prior + * permission. FundsXpress makes no representations about the suitability of + * this software for any purpose. It is provided "as is" without express + * or implied warranty. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +#include "k5-int.h" +#include "etypes.h" +#include "cksumtypes.h" + +static int etype_match(krb5_enctype e1, krb5_enctype e2) +{ + int i1, i2; + + for (i1=0; i1<krb5_enctypes_length; i1++) + if (krb5_enctypes_list[i1].etype == e1) + break; + + for (i2=0; i2<krb5_enctypes_length; i2++) + if (krb5_enctypes_list[i2].etype == e2) + break; + + return((i1 < krb5_enctypes_length) && + (i2 < krb5_enctypes_length) && + (krb5_enctypes_list[i1].enc == krb5_enctypes_list[i2].enc)); +} + +krb5_error_code KRB5_CALLCONV +krb5_c_keyed_checksum_types(krb5_context context, krb5_enctype enctype, + unsigned int *count, krb5_cksumtype **cksumtypes) +{ + unsigned int i, c; + + c = 0; + for (i=0; i<krb5_cksumtypes_length; i++) { + if ((krb5_cksumtypes_list[i].keyhash && + etype_match(krb5_cksumtypes_list[i].keyed_etype, enctype)) || + (krb5_cksumtypes_list[i].flags & KRB5_CKSUMFLAG_DERIVE)) { + c++; + } + } + + *count = c; + + if ((*cksumtypes = (krb5_cksumtype *) malloc(c*sizeof(krb5_cksumtype))) + == NULL) + return(ENOMEM); + + c = 0; + for (i=0; i<krb5_cksumtypes_length; i++) { + if ((krb5_cksumtypes_list[i].keyhash && + etype_match(krb5_cksumtypes_list[i].keyed_etype, enctype)) || + (krb5_cksumtypes_list[i].flags & KRB5_CKSUMFLAG_DERIVE)) { + (*cksumtypes)[c] = krb5_cksumtypes_list[i].ctype; + c++; + } + } + + return(0); +} + +void KRB5_CALLCONV +krb5_free_cksumtypes(krb5_context context, krb5_cksumtype *val) +{ + if (val) + free(val); + return; +} + |