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MFC rev 1.101 and 1.102:

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revision 1.101
date: 2005/09/18 19:23:35;  author: cognet;  state: Exp;  lines: +14 -5
Slightly change the API for the SNPSTTY ioctl so that the userland now
provides a file descriptor instead of a dev_t.

revision 1.102
date: 2005/09/19 13:48:45;  author: ru;  state: Exp;  lines: +5 -5
Restore the ability to detach from a tty via SIOCSTTY and document
recent changes in a manpage.

Approved by:	re
This commit is contained in:
cognet 2005-09-23 23:22:22 +00:00
parent d397569b01
commit 1675cfdf22
1 changed files with 15 additions and 6 deletions
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21
sys/dev/snp/snp.c
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@ -30,6 +30,8 @@ __FBSDID("$FreeBSD$");
#include <sys/queue.h>
#include <sys/snoop.h>
#include <sys/uio.h>
#include <sys/file.h>
#include <sys/vnode.h>
static l_close_t snplclose;
static l_write_t snplwrite;
@ -518,18 +520,25 @@ snpioctl(dev, cmd, data, flags, td)
struct snoop *snp;
struct tty *tp, *tpo;
struct cdev *tdev;
struct file *fp;
int s;
snp = dev->si_drv1;
switch (cmd) {
case SNPSTTY:
#if 0
tdev = findcdev(*((dev_t *)data));
#else
tdev = NULL;
#endif
if (tdev == NULL)
s = *(int *)data;
if (s < 0)
return (snp_down(snp));
if (fget(td, s, &fp) != 0)
return (EINVAL);
if (fp->f_type != DTYPE_VNODE ||
fp->f_vnode->v_type != VCHR ||
fp->f_vnode->v_rdev == NULL) {
fdrop(fp, td);
return (EINVAL);
}
tdev = fp->f_vnode->v_rdev;
fdrop(fp, td);
tp = snpdevtotty(tdev);
if (!tp)