diff options
Diffstat (limited to 'crypto/heimdal/lib/krb5/mk_error.c')
| -rw-r--r-- | crypto/heimdal/lib/krb5/mk_error.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/krb5/mk_error.c b/crypto/heimdal/lib/krb5/mk_error.c new file mode 100644 index 0000000..2b173db --- /dev/null +++ b/crypto/heimdal/lib/krb5/mk_error.c @@ -0,0 +1,124 @@ +/* + * Copyright (c) 1997, 1998 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5_locl.h" + +RCSID("$Id: mk_error.c,v 1.14 1999/12/02 17:05:11 joda Exp $"); + +krb5_error_code +krb5_mk_error(krb5_context context, + krb5_error_code error_code, + const char *e_text, + const krb5_data *e_data, + const krb5_principal client, + const krb5_principal server, + time_t ctime, + krb5_data *reply) +{ + KRB_ERROR msg; + u_char *buf; + size_t buf_size; + int32_t sec, usec; + size_t len; + krb5_error_code ret = 0; + + krb5_us_timeofday (context, &sec, &usec); + + memset(&msg, 0, sizeof(msg)); + msg.pvno = 5; + msg.msg_type = krb_error; + msg.stime = sec; + msg.susec = usec; + if(ctime) { + msg.ctime = &ctime; + } + /* Make sure we only send `protocol' error codes */ + if(error_code < KRB5KDC_ERR_NONE || error_code >= KRB5_ERR_RCSID) { + if(e_text == NULL) + e_text = krb5_get_err_text(context, error_code); + error_code = KRB5KRB_ERR_GENERIC; + } + msg.error_code = error_code - KRB5KDC_ERR_NONE; + if (e_text) + msg.e_text = (general_string*)&e_text; + if (e_data) + msg.e_data = (octet_string*)e_data; + if(server){ + msg.realm = server->realm; + msg.sname = server->name; + }else{ + msg.realm = "<unspecified realm>"; + } + if(client){ + msg.crealm = &client->realm; + msg.cname = &client->name; + } + + buf_size = 1024; + buf = malloc (buf_size); + if (buf == NULL) + return ENOMEM; + + do { + ret = encode_KRB_ERROR(buf + buf_size - 1, + buf_size, + &msg, + &len); + if (ret) { + if (ret == ASN1_OVERFLOW) { + u_char *tmp; + + buf_size *= 2; + tmp = realloc (buf, buf_size); + if (tmp == NULL) { + ret = ENOMEM; + goto out; + } + buf = tmp; + } else { + goto out; + } + } + } while (ret == ASN1_OVERFLOW); + + reply->length = len; + reply->data = malloc(len); + if (reply->data == NULL) { + ret = ENOMEM; + goto out; + } + memcpy (reply->data, buf + buf_size - len, len); +out: + free (buf); + return ret; +} |
