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| author | Tobias Klauser <tklauser@distanz.ch> | 2018-06-20 15:41:37 +0200 |
|---|---|---|
| committer | Tobias Klauser <tobias.klauser@gmail.com> | 2018-06-21 06:47:46 +0000 |
| commit | 85e38cccb4d113862f4fd2c3c4d97927cd84420c (patch) | |
| tree | c39d71d5531a6e50a952044a422f8395419f7c89 /src/syscall/syscall_linux.go | |
| parent | feeff23556bc82778aab0ed80b576b953f064024 (diff) | |
| download | go-85e38cccb4d113862f4fd2c3c4d97927cd84420c.tar.xz | |
syscall: check faccessat flags parameter on Linux
Port CL 119495 from golang.org/x/sys/unix to the syscall package.
Currently Linux faccessat(2) syscall implementation doesn't support the
flags parameter. As per the discussion in #25845, permit the same flags
as glibc [1].
[1] https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/faccessat.c;h=ea42b2303ff4b2d2d6548ea04376fb265f773436;hb=HEAD
Updates #25845
Change-Id: I132b33275a9cc72b3a97acea5482806c7f47d7f7
Reviewed-on: https://go-review.googlesource.com/120015
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Diffstat (limited to 'src/syscall/syscall_linux.go')
| -rw-r--r-- | src/syscall/syscall_linux.go | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/syscall/syscall_linux.go b/src/syscall/syscall_linux.go index 8d0532e216..1a304c4966 100644 --- a/src/syscall/syscall_linux.go +++ b/src/syscall/syscall_linux.go @@ -35,6 +35,17 @@ func Creat(path string, mode uint32) (fd int, err error) { return Open(path, O_CREAT|O_WRONLY|O_TRUNC, mode) } +//sys faccessat(dirfd int, path string, mode uint32) (err error) + +func Faccessat(dirfd int, path string, mode uint32, flags int) (err error) { + if flags & ^(_AT_SYMLINK_NOFOLLOW|_AT_EACCESS) != 0 { + return EINVAL + } else if flags&(_AT_SYMLINK_NOFOLLOW|_AT_EACCESS) != 0 { + return EOPNOTSUPP + } + return faccessat(dirfd, path, mode) +} + //sys fchmodat(dirfd int, path string, mode uint32) (err error) func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) { @@ -840,7 +851,6 @@ func Mount(source string, target string, fstype string, flags uintptr, data stri //sysnb EpollCreate(size int) (fd int, err error) //sysnb EpollCreate1(flag int) (fd int, err error) //sysnb EpollCtl(epfd int, op int, fd int, event *EpollEvent) (err error) -//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) //sys Fallocate(fd int, mode uint32, off int64, len int64) (err error) //sys Fchdir(fd int) (err error) //sys Fchmod(fd int, mode uint32) (err error) |