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remove arbitrary limit

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@4488 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1998-03-01 02:44:29 +00:00
parent 37fd642d03
commit e99f4c1720
5 changed files with 330 additions and 90 deletions
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92
lib/krb5/mk_rep.c
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@@ -49,12 +49,15 @@ krb5_mk_rep(krb5_context context,
AP_REP ap;
EncAPRepPart body;
krb5_enctype etype;
u_char buf[1024];
u_char *buf = NULL;
size_t buf_size;
size_t len;
ap.pvno = 5;
ap.msg_type = krb_ap_rep;
memset (&body, 0, sizeof(body));
body.ctime = (*auth_context)->authenticator->ctime;
body.cusec = (*auth_context)->authenticator->cusec;
body.subkey = NULL;
@@ -63,6 +66,8 @@ krb5_mk_rep(krb5_context context,
(*auth_context)->keyblock,
&(*auth_context)->local_seqnumber);
body.seq_number = malloc (sizeof(*body.seq_number));
if (body.seq_number == NULL)
return ENOMEM;
*(body.seq_number) = (*auth_context)->local_seqnumber;
} else
body.seq_number = NULL;
@@ -70,20 +75,83 @@ krb5_mk_rep(krb5_context context,
krb5_keytype_to_etype(context, (*auth_context)->keyblock->keytype, &etype);
ap.enc_part.etype = etype;
ap.enc_part.kvno = NULL;
krb5_encode_EncAPRepPart (context, buf + sizeof(buf) - 1, sizeof(buf),
&body, &len);
ret = krb5_encrypt (context, buf + sizeof(buf) - len, len,
ap.enc_part.etype,
(*auth_context)->keyblock, &ap.enc_part.cipher);
if (ret)
return ret;
encode_AP_REP (buf + sizeof(buf) - 1, sizeof(buf), &ap, &len);
free (ap.enc_part.cipher.data);
buf_size = 1024;
buf = malloc (buf_size);
if (buf == NULL) {
free_EncAPRepPart (&body);
return ENOMEM;
}
do {
ret = krb5_encode_EncAPRepPart (context, buf + buf_size - 1,
buf_size,
&body, &len);
if (ret) {
if (ret == ASN1_OVERFLOW) {
u_char *tmp;
buf_size *= 2;
tmp = realloc (buf, buf_size);
if (tmp == NULL) {
free(buf);
free_EncAPRepPart (&body);
return ENOMEM;
}
buf = tmp;
} else {
free_EncAPRepPart (&body);
free(buf);
return ret;
}
}
} while(ret == ASN1_OVERFLOW);
ret = krb5_encrypt (context,
buf + buf_size - len, len,
ap.enc_part.etype,
(*auth_context)->keyblock,
&ap.enc_part.cipher);
if (ret) {
free(buf);
free_EncAPRepPart (&body);
return ret;
}
do {
ret = encode_AP_REP (buf + buf_size - 1, buf_size, &ap, &len);
if (ret) {
if (ret == ASN1_OVERFLOW) {
u_char *tmp;
buf_size *= 2;
tmp = realloc (buf, buf_size);
if (tmp == NULL) {
free_AP_REP (&ap);
free_EncAPRepPart (&body);
free (buf);
return ENOMEM;
}
buf = tmp;
} else {
free_AP_REP (&ap);
free_EncAPRepPart (&body);
free(buf);
return ret;
}
}
} while (ret == ASN1_OVERFLOW);
free_AP_REP (&ap);
free_EncAPRepPart (&body);
outbuf->length = len;
outbuf->data = malloc(len);
if (outbuf->data == NULL)
if (outbuf->data == NULL) {
free (buf);
return ENOMEM;
memcpy(outbuf->data, buf + sizeof(buf) - len, len);
}
memcpy(outbuf->data, buf + buf_size - len, len);
free (buf);
return 0;
}