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-rw-r--r--lib/libc/gen/ttyname.c14
1 files changed, 2 insertions, 12 deletions
diff --git a/lib/libc/gen/ttyname.c b/lib/libc/gen/ttyname.c
index 6543604..a21b77f 100644
--- a/lib/libc/gen/ttyname.c
+++ b/lib/libc/gen/ttyname.c
@@ -35,7 +35,6 @@ __FBSDID("$FreeBSD$");
#include "namespace.h"
#include <sys/types.h>
-#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/filio.h>
#include <fcntl.h>
@@ -60,8 +59,6 @@ static int ttyname_keycreated = 0;
int
ttyname_r(int fd, char *buf, size_t len)
{
- struct stat sb;
- struct fiodgname_arg fgn;
size_t used;
*buf = '\0';
@@ -69,21 +66,14 @@ ttyname_r(int fd, char *buf, size_t len)
/* Must be a terminal. */
if (!isatty(fd))
return (ENOTTY);
- /* Must be a character device. */
- if (_fstat(fd, &sb) || !S_ISCHR(sb.st_mode))
- return (ENOTTY);
/* Must have enough room */
if (len <= sizeof(_PATH_DEV))
return (ERANGE);
strcpy(buf, _PATH_DEV);
used = strlen(buf);
- fgn.len = len - used;
- fgn.buf = buf + used;
- if (!_ioctl(fd, FIODGNAME, &fgn))
- return (0);
- used = strlen(buf);
- devname_r(sb.st_rdev, S_IFCHR, buf + used, len - used);
+ if (fdevname_r(fd, buf + used, len - used) == NULL)
+ return (ENOTTY);
return (0);
}
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