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Made crypt/decrypt faster.

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This commit is contained in:
Bram Moolenaar
2010-06-01 23:37:39 +02:00
parent 8cd213c09a
commit 04c9bafa71
6 changed files with 89 additions and 69 deletions
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24
src/fileio.c
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@@ -1426,8 +1426,7 @@ retry:
* Decrypt the read bytes.
*/
if (cryptkey != NULL && size > 0)
for (p = ptr; p < ptr + size; ++p)
ZDECODE(*p);
crypt_decode(ptr, size);
#endif
}
skip_read = FALSE;
@@ -3004,7 +3003,6 @@ fwrite_crypt(buf, ptr, len, fp)
{
char_u *copy;
char_u small_buf[100];
int ztemp, t;
size_t i;
if (*buf->b_p_key == NUL)
@@ -3017,11 +3015,7 @@ fwrite_crypt(buf, ptr, len, fp)
if (copy == NULL)
return 0;
}
for (i = 0; i < len; ++i)
{
ztemp = ptr[i];
copy[i] = ZENCODE(ztemp, t);
}
crypt_encode(ptr, len, copy);
i = fwrite(copy, len, (size_t)1, fp);
if (copy != small_buf)
vim_free(copy);
@@ -3039,12 +3033,10 @@ read_string_decrypt(buf, fd, len)
int len;
{
char_u *ptr;
char_u *p;
ptr = read_string(fd, len);
if (ptr != NULL || *buf->b_p_key != NUL)
for (p = ptr; p < ptr + len; ++p)
ZDECODE(*p);
crypt_decode(ptr, len);
return ptr;
}
@@ -5678,15 +5670,7 @@ buf_write_bytes(ip)
#ifdef FEAT_CRYPT
if (flags & FIO_ENCRYPTED) /* encrypt the data */
{
int ztemp, t, i;
for (i = 0; i < len; i++)
{
ztemp = buf[i];
buf[i] = ZENCODE(ztemp, t);
}
}
crypt_encode(buf, len, buf);
#endif
/* Repeat the write(), it may be interrupted by a signal. */