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Make ttyname() use posix-style tcgetattr() to check to see that it's

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running on a tty.  (Same as isatty()) The old-style TIOCGETP ioctl
wouldn't fly if the kernel didn't have COMPAT_43.
Submitted by:	Carl Fongheiser <cmf@netins.net>
This commit is contained in:
Peter Wemm 1995-09-22 17:01:28 +00:00
parent 0ad2ff70ee
commit fcc3b6999e
1 changed files with 3 additions and 3 deletions
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6
lib/libc/gen/ttyname.c
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@ -39,7 +39,7 @@ static char sccsid[] = "@(#)ttyname.c 8.2 (Berkeley) 1/27/94";
#include <sys/stat.h>
#include <fcntl.h>
#include <dirent.h>
#include <sgtty.h>
#include <termios.h>
#include <db.h>
#include <string.h>
#include <paths.h>
@ -52,7 +52,7 @@ ttyname(fd)
int fd;
{
struct stat sb;
struct sgttyb ttyb;
struct termios ttyb;
DB *db;
DBT data, key;
struct {
@ -61,7 +61,7 @@ ttyname(fd)
} bkey;
/* Must be a terminal. */
if (ioctl(fd, TIOCGETP, &ttyb) < 0)
if (tcgetattr(fd, &ttyb) < 0)
return (NULL);
/* Must be a character device. */
if (fstat(fd, &sb) || !S_ISCHR(sb.st_mode))