diff -r 270cc4dda0c5 -r 8d3354485fc3 vendor/golang.org/x/sys/unix/xattr_bsd.go --- a/vendor/golang.org/x/sys/unix/xattr_bsd.go Thu Sep 22 16:32:45 2022 +0200 +++ b/vendor/golang.org/x/sys/unix/xattr_bsd.go Thu Sep 22 16:33:34 2022 +0200 @@ -160,13 +160,12 @@ } 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 @@ -175,67 +174,103 @@ * 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 ListxattrNS(file string, nsid int, dest []byte) (sz int, err error) { + d := initxattrdest(dest, 0) + destsiz := len(dest) + + 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) { - d := initxattrdest(dest, 0) destsiz := len(dest) - s := 0 + 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 FlistxattrNS(fd int, nsid int, dest []byte) (sz int, err error) { + d := initxattrdest(dest, 0) + destsiz := len(dest) + + 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) { - d := initxattrdest(dest, 0) destsiz := len(dest) - s := 0 + 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 +}