blob: 8b7b2648aa58c5214107b609ef530bb5d6b2d981 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/*************************************************
* Pipe I/O for Unix Source File *
* (C) 1999-2006 The Botan Project *
*************************************************/
#include <botan/pipe.h>
#include <unistd.h>
namespace Botan {
/*************************************************
* Write data from a pipe into a Unix fd *
*************************************************/
int operator<<(int fd, Pipe& pipe)
{
SecureVector<byte> buffer(DEFAULT_BUFFERSIZE);
while(pipe.remaining())
{
u32bit got = pipe.read(buffer, buffer.size());
u32bit position = 0;
while(got)
{
ssize_t ret = write(fd, buffer + position, got);
if(ret == -1)
throw Stream_IO_Error("Pipe output operator (unixfd) has failed");
position += ret;
got -= ret;
}
}
return fd;
}
/*************************************************
* Read data from a Unix fd into a pipe *
*************************************************/
int operator>>(int fd, Pipe& pipe)
{
SecureVector<byte> buffer(DEFAULT_BUFFERSIZE);
while(true)
{
ssize_t ret = read(fd, buffer, buffer.size());
if(ret == 0) break;
if(ret == -1)
throw Stream_IO_Error("Pipe input operator (unixfd) has failed");
pipe.write(buffer, ret);
}
return fd;
}
}
|
