diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/xattr_bsd.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/xattr_bsd.go | 95 |
1 files changed, 65 insertions, 30 deletions
diff --git a/vendor/golang.org/x/sys/unix/xattr_bsd.go b/vendor/golang.org/x/sys/unix/xattr_bsd.go index 25df1e378..663b3779d 100644 --- a/vendor/golang.org/x/sys/unix/xattr_bsd.go +++ b/vendor/golang.org/x/sys/unix/xattr_bsd.go @@ -160,13 +160,12 @@ func Lremovexattr(link string, attr string) (err error) { } func Listxattr(file string, dest []byte) (sz int, err error) { - d := initxattrdest(dest, 0) destsiz := len(dest) // FreeBSD won't allow you to list xattrs from multiple namespaces - s := 0 + s, pos := 0, 0 for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { - stmp, e := ExtattrListFile(file, nsid, uintptr(d), destsiz) + stmp, e := ListxattrNS(file, nsid, dest[pos:]) /* Errors accessing system attrs are ignored so that * we can implement the Linux-like behavior of omitting errors that @@ -175,66 +174,102 @@ func Listxattr(file string, dest []byte) (sz int, err error) { * Linux will still error if we ask for user attributes on a file that * we don't have read permissions on, so don't ignore those errors */ - if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { - continue - } else if e != nil { + if e != nil { + if e == EPERM && nsid != EXTATTR_NAMESPACE_USER { + continue + } return s, e } s += stmp - destsiz -= s - if destsiz < 0 { - destsiz = 0 + pos = s + if pos > destsiz { + pos = destsiz } - d = initxattrdest(dest, s) } return s, nil } -func Flistxattr(fd int, dest []byte) (sz int, err error) { +func ListxattrNS(file string, nsid int, dest []byte) (sz int, err error) { d := initxattrdest(dest, 0) destsiz := len(dest) - s := 0 + s, e := ExtattrListFile(file, nsid, uintptr(d), destsiz) + if e != nil { + return 0, err + } + + return s, nil +} + +func Flistxattr(fd int, dest []byte) (sz int, err error) { + destsiz := len(dest) + + s, pos := 0, 0 for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { - stmp, e := ExtattrListFd(fd, nsid, uintptr(d), destsiz) - if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { - continue - } else if e != nil { + stmp, e := FlistxattrNS(fd, nsid, dest[pos:]) + + if e != nil { + if e == EPERM && nsid != EXTATTR_NAMESPACE_USER { + continue + } return s, e } s += stmp - destsiz -= s - if destsiz < 0 { - destsiz = 0 + pos = s + if pos > destsiz { + pos = destsiz } - d = initxattrdest(dest, s) } return s, nil } -func Llistxattr(link string, dest []byte) (sz int, err error) { +func FlistxattrNS(fd int, nsid int, dest []byte) (sz int, err error) { d := initxattrdest(dest, 0) destsiz := len(dest) - s := 0 + s, e := ExtattrListFd(fd, nsid, uintptr(d), destsiz) + if e != nil { + return 0, err + } + + return s, nil +} + +func Llistxattr(link string, dest []byte) (sz int, err error) { + destsiz := len(dest) + + s, pos := 0, 0 for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { - stmp, e := ExtattrListLink(link, nsid, uintptr(d), destsiz) - if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { - continue - } else if e != nil { + stmp, e := LlistxattrNS(link, nsid, dest[pos:]) + + if e != nil { + if e == EPERM && nsid != EXTATTR_NAMESPACE_USER { + continue + } return s, e } s += stmp - destsiz -= s - if destsiz < 0 { - destsiz = 0 + pos = s + if pos > destsiz { + pos = destsiz } - d = initxattrdest(dest, s) + } + + return s, nil +} + +func LlistxattrNS(link string, nsid int, dest []byte) (sz int, err error) { + d := initxattrdest(dest, 0) + destsiz := len(dest) + + s, e := ExtattrListLink(link, nsid, uintptr(d), destsiz) + if e != nil { + return 0, err } return s, nil |