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* fhandler_tty.cc (fhandler_pty_slave::ioctl): Drop FIONBIO case.

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Handle FIONREAD.
	(fhandler_pty_master::ioctl): Ditto.  Call fhandler_base::ioctl to
	decode default condition.
	* fhandler_console.cc (fhandler_console::ioctl): Handle FIONREAD.
This commit is contained in:
Corinna Vinschen
2011-07-22 18:50:42 +00:00
parent da7287ed5d
commit cfb517f39a
3 changed files with 50 additions and 13 deletions
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35
winsup/cygwin/fhandler_tty.cc
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@@ -24,6 +24,7 @@ details. */
#include "shared_info.h"
#include "cygthread.h"
#include "child_info.h"
#include <asm/socket.h>
#define close_maybe(h) \
do { \
@@ -960,10 +961,6 @@ fhandler_pty_slave::ioctl (unsigned int cmd, void *arg)
case TIOCGWINSZ:
case TIOCSWINSZ:
break;
case FIONBIO:
set_nonblocking (*(int *) arg);
retval = 0;
goto out;
case TIOCGPGRP:
{
pid_t pid = this->tcgetpgrp ();
@@ -979,6 +976,21 @@ fhandler_pty_slave::ioctl (unsigned int cmd, void *arg)
case TIOCSPGRP:
retval = this->tcsetpgrp ((pid_t) arg);
goto out;
case FIONREAD:
{
int n;
if (!PeekNamedPipe (get_handle (), NULL, 0, NULL, (DWORD *) &n, NULL))
{
__seterrno ();
retval = -1;
}
else
{
*(int *) arg = n;
retval = 0;
}
}
goto out;
default:
return fhandler_base::ioctl (cmd, arg);
}
@@ -1364,12 +1376,19 @@ fhandler_pty_master::ioctl (unsigned int cmd, void *arg)
break;
case TIOCSPGRP:
return this->tcsetpgrp ((pid_t) arg);
case FIONBIO:
set_nonblocking (*(int *) arg);
case FIONREAD:
{
int n;
if (!PeekNamedPipe (to_master, NULL, 0, NULL, (DWORD *) &n, NULL))
{
__seterrno ();
return -1;
}
*(int *) arg = n;
}
break;
default:
set_errno (EINVAL);
return -1;
return fhandler_base::ioctl (cmd, arg);
}
return 0;
}