diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/pipe.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index f73492b6817e..3499f9ff6316 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -1076,6 +1076,23 @@ int do_pipe(int *fd) } /* + * sys_pipe() is the normal C calling standard for creating + * a pipe. It's not the way Unix traditionally does this, though. + */ +asmlinkage long __weak sys_pipe(int __user *fildes) +{ + int fd[2]; + int error; + + error = do_pipe(fd); + if (!error) { + if (copy_to_user(fildes, fd, sizeof(fd))) + error = -EFAULT; + } + return error; +} + +/* * pipefs should _never_ be mounted by userland - too much of security hassle, * no real gain from having the whole whorehouse mounted. So we don't need * any operations on the root directory. However, we need a non-trivial |