diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/ptsname.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/ptsname.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/sysdeps/unix/sysv/linux/ptsname.c b/sysdeps/unix/sysv/linux/ptsname.c index 0bdc5edaf3..ec578b3c95 100644 --- a/sysdeps/unix/sysv/linux/ptsname.c +++ b/sysdeps/unix/sysv/linux/ptsname.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1998, 2000 Free Software Foundation, Inc. +/* Copyright (C) 1998, 2000, 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998. @@ -96,19 +96,19 @@ __ptsname_r (int fd, char *buf, size_t buflen) `int' of 8 bytes we never need more than 20 digits. */ char numbuf[21]; const char *devpts = _PATH_DEVPTS; - const size_t devptslen = strlen (devpts); + const size_t devptslen = strlen (_PATH_DEVPTS); char *p; - numbuf[20] = '\0'; - p = _itoa_word (ptyno, &numbuf[20], 10, 0); + numbuf[sizeof (numbuf) - 1] = '\0'; + p = _itoa_word (ptyno, &numbuf[sizeof (numbuf) - 1], 10, 0); - if (buflen < devptslen + strlen (p) + 1) + if (buflen < devptslen + &numbuf[sizeof (numbuf)] - p) { __set_errno (ERANGE); return ERANGE; } - __stpcpy (__stpcpy (buf, devpts), p); + memcpy (__stpcpy (buf, devpts), p, &numbuf[sizeof (numbuf)] - p); } else if (errno == EINVAL) #endif |