diff options
Diffstat (limited to 'sysdeps/posix/ttyname_r.c')
| -rw-r--r-- | sysdeps/posix/ttyname_r.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/sysdeps/posix/ttyname_r.c b/sysdeps/posix/ttyname_r.c index 30f058314d..4450a83326 100644 --- a/sysdeps/posix/ttyname_r.c +++ b/sysdeps/posix/ttyname_r.c @@ -48,7 +48,7 @@ ttyname_r (fd, buf, buflen) /* Test for the absolute minimal size. This makes life easier inside the loop. */ - if (buflen < (int) (sizeof (dev) + 2)) + if (buflen < (int) (sizeof (dev) + 1)) { errno = EINVAL; return -1; @@ -64,16 +64,16 @@ ttyname_r (fd, buf, buflen) return -1; /* Prepare the result buffer. */ - memcpy (buf, dev, sizeof (dev)); - buf[sizeof (dev)] = '/'; - buflen -= sizeof (dev) + 1; + memcpy (buf, dev, sizeof (dev) - 1); + buf[sizeof (dev) - 1] = '/'; + buflen -= sizeof (dev); while ((d = readdir (dirstream)) != NULL) if (d->d_fileno == myino) { char *cp; - cp = __stpncpy (&buf[sizeof (dev) + 1], d->d_name, + cp = __stpncpy (&buf[sizeof (dev)], d->d_name, MIN ((int) (_D_EXACT_NAMLEN (d) + 1), buflen)); cp[0] = '\0'; |