diff options
author | Christopher Speller <crspeller@gmail.com> | 2018-01-29 14:17:40 -0800 |
---|---|---|
committer | GitHub <noreply@github.com> | 2018-01-29 14:17:40 -0800 |
commit | 961c04cae992eadb42d286d2f85f8a675bdc68c8 (patch) | |
tree | 3408f2d06f847e966c53485e2d54c692cdd037c1 /vendor/golang.org/x/sys/unix/dirent.go | |
parent | 8d66523ba7d9a77129844be476732ebfd5272d64 (diff) | |
download | chat-961c04cae992eadb42d286d2f85f8a675bdc68c8.tar.gz chat-961c04cae992eadb42d286d2f85f8a675bdc68c8.tar.bz2 chat-961c04cae992eadb42d286d2f85f8a675bdc68c8.zip |
Upgrading server dependancies (#8154)
Diffstat (limited to 'vendor/golang.org/x/sys/unix/dirent.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/dirent.go | 89 |
1 files changed, 2 insertions, 87 deletions
diff --git a/vendor/golang.org/x/sys/unix/dirent.go b/vendor/golang.org/x/sys/unix/dirent.go index bd475812b..95fd35317 100644 --- a/vendor/golang.org/x/sys/unix/dirent.go +++ b/vendor/golang.org/x/sys/unix/dirent.go @@ -6,97 +6,12 @@ package unix -import "unsafe" - -// readInt returns the size-bytes unsigned integer in native byte order at offset off. -func readInt(b []byte, off, size uintptr) (u uint64, ok bool) { - if len(b) < int(off+size) { - return 0, false - } - if isBigEndian { - return readIntBE(b[off:], size), true - } - return readIntLE(b[off:], size), true -} - -func readIntBE(b []byte, size uintptr) uint64 { - switch size { - case 1: - return uint64(b[0]) - case 2: - _ = b[1] // bounds check hint to compiler; see golang.org/issue/14808 - return uint64(b[1]) | uint64(b[0])<<8 - case 4: - _ = b[3] // bounds check hint to compiler; see golang.org/issue/14808 - return uint64(b[3]) | uint64(b[2])<<8 | uint64(b[1])<<16 | uint64(b[0])<<24 - case 8: - _ = b[7] // bounds check hint to compiler; see golang.org/issue/14808 - return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 | - uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56 - default: - panic("syscall: readInt with unsupported size") - } -} - -func readIntLE(b []byte, size uintptr) uint64 { - switch size { - case 1: - return uint64(b[0]) - case 2: - _ = b[1] // bounds check hint to compiler; see golang.org/issue/14808 - return uint64(b[0]) | uint64(b[1])<<8 - case 4: - _ = b[3] // bounds check hint to compiler; see golang.org/issue/14808 - return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 - case 8: - _ = b[7] // bounds check hint to compiler; see golang.org/issue/14808 - return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | - uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56 - default: - panic("syscall: readInt with unsupported size") - } -} +import "syscall" // ParseDirent parses up to max directory entries in buf, // appending the names to names. It returns the number of // bytes consumed from buf, the number of entries added // to names, and the new names slice. func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) { - origlen := len(buf) - count = 0 - for max != 0 && len(buf) > 0 { - reclen, ok := direntReclen(buf) - if !ok || reclen > uint64(len(buf)) { - return origlen, count, names - } - rec := buf[:reclen] - buf = buf[reclen:] - ino, ok := direntIno(rec) - if !ok { - break - } - if ino == 0 { // File absent in directory. - continue - } - const namoff = uint64(unsafe.Offsetof(Dirent{}.Name)) - namlen, ok := direntNamlen(rec) - if !ok || namoff+namlen > uint64(len(rec)) { - break - } - name := rec[namoff : namoff+namlen] - for i, c := range name { - if c == 0 { - name = name[:i] - break - } - } - // Check for useless names before allocating a string. - if string(name) == "." || string(name) == ".." { - continue - } - max-- - count++ - names = append(names, string(name)) - } - return origlen - len(buf), count, names + return syscall.ParseDirent(buf, max, names) } |