diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/grantpt.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/grantpt.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/grantpt.c b/sysdeps/unix/sysv/linux/grantpt.c index b894b8b631..c858f89c8b 100644 --- a/sysdeps/unix/sysv/linux/grantpt.c +++ b/sysdeps/unix/sysv/linux/grantpt.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1998, 1999, 2001, 2002 Free Software Foundation, Inc. +/* Copyright (C) 1998, 1999, 2001, 2002, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -70,9 +70,16 @@ grantpt (int fd) return -1; /* If the slave pseudo terminal lives on a `devpts' filesystem, the - ownership and access permission are already set. */ + ownership is already set and the access permission might already + be set. */ if (fsbuf.f_type == DEVPTS_SUPER_MAGIC || fsbuf.f_type == DEVFS_SUPER_MAGIC) - return 0; + { + struct stat64 st; + + if (fstat (fd, &st) == 0 + && (st.st_mode & ACCESSPERMS) == (S_IRUSR|S_IWUSR|S_IWGRP)) + return 0; + } return __unix_grantpt (fd); } |