thac0/vim
1
0
Fork 0
forked from aniani/vim
Code Activity

Crypt the swapfile.

Browse Source
This commit is contained in:
Bram Moolenaar
2010-06-21 06:15:46 +02:00
parent 191e0a2bc7
commit a8ffcbbf5d
23 changed files with 824 additions and 155 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
src/misc2.c
View File

@@ -3746,6 +3746,59 @@ static ulg keys[3]; /* keys defining the pseudo-random sequence */
keys[2] = CRC32(keys[2], (int)(keys[1] >> 24)); \
}
static int crypt_busy = 0;
static ulg saved_keys[3];
static int saved_crypt_method;
/*
* Prepare for initializing encryption. If already doing encryption then save
* the state.
* Must always be called symmetrycally with crypt_pop_state().
*/
void
crypt_push_state()
{
if (crypt_busy == 1)
{
/* save the state */
if (use_crypt_method == 0)
{
saved_keys[0] = keys[0];
saved_keys[1] = keys[1];
saved_keys[2] = keys[2];
}
else
bf_crypt_save();
saved_crypt_method = use_crypt_method;
}
else if (crypt_busy > 1)
EMSG2(_(e_intern2), "crypt_push_state()");
++crypt_busy;
}
/*
* End encryption. If doing encryption before crypt_push_state() then restore
* the saved state.
* Must always be called symmetrycally with crypt_push_state().
*/
void
crypt_pop_state()
{
--crypt_busy;
if (crypt_busy == 1)
{
use_crypt_method = saved_crypt_method;
if (use_crypt_method == 0)
{
keys[0] = saved_keys[0];
keys[1] = saved_keys[1];
keys[2] = saved_keys[2];
}
else
bf_crypt_restore();
}
}
/*
* Encrypt "from[len]" into "to[len]".
* "from" and "to" can be equal to encrypt in place.
@@ -3894,6 +3947,8 @@ get_crypt_key(store, twice)
/* since the user typed this, no need to wait for return */
need_wait_return = FALSE;
if (msg_didout)
msg_putchar('\n');
msg_didout = FALSE;
free_crypt_key(p2);