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(krb5_get_wrapped_length): rewrite into different parts for the

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derived and non-derived cases


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@8170 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
2000-04-11 17:30:22 +00:00
parent 843030c780
commit 211c70f9ba
1 changed files with 32 additions and 7 deletions
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39
lib/krb5/crypto.c
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@@ -2265,14 +2265,24 @@ krb5_string_to_key_derived(krb5_context context,
return ret;
}
/*
* Return the size of an encrypted packet of length `data_len'
*/
static size_t
wrapped_length (krb5_context context,
krb5_crypto crypto,
size_t data_len)
{
struct encryption_type *et = crypto->et;
size_t blocksize = et->blocksize;
size_t res;
size_t
krb5_get_wrapped_length (krb5_context context,
krb5_crypto crypto,
size_t data_len)
res = et->confoundersize + et->cksumtype->checksumsize + data_len;
res = (res + blocksize - 1) / blocksize * blocksize;
return res;
}
static size_t
wrapped_length_dervied (krb5_context context,
krb5_crypto crypto,
size_t data_len)
{
struct encryption_type *et = crypto->et;
size_t blocksize = et->blocksize;
@@ -2284,6 +2294,21 @@ krb5_get_wrapped_length (krb5_context context,
return res;
}
/*
* Return the size of an encrypted packet of length `data_len'
*/
size_t
krb5_get_wrapped_length (krb5_context context,
krb5_crypto crypto,
size_t data_len)
{
if (derived_crypto (context, crypto))
return wrapped_length_dervied (context, crypto, data_len);
else
return wrapped_length (context, crypto, data_len);
}
#ifdef CRYPTO_DEBUG
static krb5_error_code