Re: [PATCH 1/2] find: add SELinux support

[Kamil Dudka]

On Tue July 14 2009 14:02:36 Kamil Dudka wrote:
> attached are strace outputs from Fedora and Debian. I can see one
> suspicious place in that - this is the first main difference between Fedora
> and Debian:

Oops, once again:

Fedora strace:
    open("m4", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 5
    fcntl(5, F_GETFD)                       = 0x1 (flags FD_CLOEXEC)
    fchdir(5)                               = 0
    getdents(5, /* 14 entries */, 32768)    = 456
    getdents(5, /* 0 entries */, 32768)     = 0
    close(5)                                = 0

Debian strace:
    openat(AT_FDCWD, "m4", O_RDONLY)        = 4
    fstat(4, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
    fcntl(4, F_GETFL)                       = 0x8000 (flags O_RDONLY|
O_LARGEFILE)
    fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
    fcntl(4, F_DUPFD, 3)                    = 5
    getdents(4, /* 14 entries */, 4096)     = 456
    getdents(4, /* 0 entries */, 4096)      = 0
    close(4)                                = 0

> In other words on Debian find does not change the working directory before
> calling lgetxattr syscall. That's why lgetxattr does not see the file and
> returns ENOENT (No such file or directory).
>
> Does anybody here guess what's going on? (before I investigate it further)

Kamil