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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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100
lib/krb5/mk_safe.c
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@@ -47,12 +47,13 @@ krb5_mk_safe(krb5_context context,
krb5_data *outbuf,
/*krb5_replay_data*/ void *outdata)
{
krb5_error_code r;
krb5_error_code ret;
KRB_SAFE s;
int32_t sec, usec;
KerberosTime sec2;
unsigned usec2;
u_char buf[1024];
u_char *buf = NULL;
size_t buf_size;
size_t len;
unsigned tmp_seq;
krb5_cksumtype cksumtype;
@@ -60,11 +61,11 @@ krb5_mk_safe(krb5_context context,
if (auth_context->cksumtype)
cksumtype = auth_context->cksumtype;
else {
r = krb5_keytype_to_cksumtype (context,
auth_context->keyblock->keytype,
&cksumtype);
if (r)
return r;
ret = krb5_keytype_to_cksumtype (context,
auth_context->keyblock->keytype,
&cksumtype);
if (ret)
return ret;
}
s.pvno = 5;
@@ -90,31 +91,78 @@ krb5_mk_safe(krb5_context context,
s.cksum.checksum.data = NULL;
s.cksum.checksum.length = 0;
r = encode_KRB_SAFE (buf + sizeof(buf) - 1,
sizeof(buf),
&s,
&len);
if (r)
return r;
buf_size = 1024;
buf = malloc (buf_size);
if (buf == NULL) {
return ENOMEM;
}
r = krb5_create_checksum (context,
cksumtype,
buf + sizeof(buf) - len,
len,
auth_context->keyblock,
&s.cksum);
if (r)
return r;
do {
ret = encode_KRB_SAFE (buf + buf_size - 1,
buf_size,
&s,
&len);
if (ret) {
if (ret == ASN1_OVERFLOW) {
u_char *tmp;
r = encode_KRB_SAFE (buf + sizeof(buf) - 1, sizeof(buf), &s, &len);
if (r)
return r;
buf_size *= 2;
tmp = realloc (buf, buf_size);
if (tmp == NULL) {
free (buf);
return ENOMEM;
}
buf = tmp;
} else {
free (buf);
return ENOMEM;
}
}
} while (ret == ASN1_OVERFLOW);
ret = krb5_create_checksum (context,
cksumtype,
buf + buf_size - len,
len,
auth_context->keyblock,
&s.cksum);
if (ret) {
free (buf);
return ret;
}
do {
ret = encode_KRB_SAFE (buf + buf_size - 1, buf_size, &s, &len);
if (ret) {
if (ret == ASN1_OVERFLOW) {
u_char *tmp;
buf_size *= 2;
tmp = realloc (buf, buf_size);
if (tmp == NULL) {
free (buf);
free_Checksum (&s.cksum);
return ENOMEM;
}
buf = tmp;
} else {
free (buf);
free_Checksum (&s.cksum);
return ret;
}
}
} while (ret == ASN1_OVERFLOW);
free_Checksum (&s.cksum);
outbuf->length = len;
outbuf->data = malloc (len);
if (outbuf->data == NULL)
return ENOMEM;
if (outbuf->data == NULL) {
free (buf);
return ENOMEM;
}
memcpy (outbuf->data, buf + sizeof(buf) - len, len);
free (buf);
return 0;
}