mirror of
https://github.com/reactos/reactos.git
synced 2024-07-14 00:25:05 +00:00
435a566751
* sumatrapdf - vendor import * everything compiles (libjpeg, poppler, fitz, sumatrapdf) * does NOT link (remove the comment tags in the parent directory.rbuild file (rosapps dir) to build it) svn path=/trunk/; revision=29295
48 lines
782 B
C
48 lines
782 B
C
#include "fitz-base.h"
|
|
#include "fitz-stream.h"
|
|
|
|
typedef struct fz_arc4c_s fz_arc4c;
|
|
|
|
struct fz_arc4c_s
|
|
{
|
|
fz_filter super;
|
|
fz_arc4 arc4;
|
|
};
|
|
|
|
fz_error *
|
|
fz_newarc4filter(fz_filter **fp, unsigned char *key, unsigned keylen)
|
|
{
|
|
FZ_NEWFILTER(fz_arc4c, f, arc4filter);
|
|
fz_arc4init(&f->arc4, key, keylen);
|
|
return nil;
|
|
}
|
|
|
|
void
|
|
fz_droparc4filter(fz_filter *f)
|
|
{
|
|
}
|
|
|
|
fz_error *
|
|
fz_processarc4filter(fz_filter *filter, fz_buffer *in, fz_buffer *out)
|
|
{
|
|
fz_arc4c *f = (fz_arc4c*)filter;
|
|
int n;
|
|
|
|
while (1)
|
|
{
|
|
if (in->rp + 1 > in->wp) {
|
|
if (in->eof)
|
|
return fz_iodone;
|
|
return fz_ioneedin;
|
|
}
|
|
if (out->wp + 1 > out->ep)
|
|
return fz_ioneedout;
|
|
|
|
n = MIN(in->wp - in->rp, out->ep - out->wp);
|
|
fz_arc4encrypt(&f->arc4, out->wp, in->rp, n);
|
|
in->rp += n;
|
|
out->wp += n;
|
|
}
|
|
}
|
|
|