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* fhandler_socket.cc (set_connect_secret): Use /dev/urandom to

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generate secret cookie.
This commit is contained in:
Egor Duda 2001-05-04 16:30:18 +00:00
parent a1ad23671c
commit 69b218bf24
2 changed files with 25 additions and 2 deletions
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5
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,8 @@
2001-05-04 Egor Duda <deo@logos-m.ru>
* fhandler_socket.cc (set_connect_secret): Use /dev/urandom to
generate secret cookie.
Thu May 3 16:37:55 2001 Christopher Faylor <cgf@cygnus.com>
* include/pthread.h (pthread_cleanup_push): Eliminate space preceding

22
winsup/cygwin/fhandler_socket.cc
View File

@ -28,6 +28,10 @@
#include "sigproc.h"
#define SECRET_EVENT_NAME "cygwin.local_socket.secret.%d.%08x-%08x-%08x-%08x"
#define ENTROPY_SOURCE_NAME "/dev/urandom"
#define ENTROPY_SOURCE_DEV_UNIT 9
fhandler_dev_random* entropy_source = NULL;
/**********************************************************************/
/* fhandler_socket */
@ -50,8 +54,22 @@ fhandler_socket::~fhandler_socket ()
void
fhandler_socket::set_connect_secret ()
{
for (int i = 0; i < 4; i++)
connect_secret [i] = random ();
if (!entropy_source)
{
void *buf = malloc (sizeof (fhandler_dev_random));
entropy_source = new (buf) fhandler_dev_random (ENTROPY_SOURCE_NAME,
ENTROPY_SOURCE_DEV_UNIT);
}
if (entropy_source &&
!entropy_source->open (ENTROPY_SOURCE_NAME, O_RDONLY))
{
delete entropy_source;
entropy_source = NULL;
}
if (!entropy_source ||
(entropy_source->read (connect_secret, sizeof (connect_secret)) !=
sizeof (connect_secret)))
bzero ((char*) connect_secret, sizeof (connect_secret));
}
void