diff options
Diffstat (limited to 'pkg/binstruct/builtins.go')
-rw-r--r-- | pkg/binstruct/builtins.go | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/pkg/binstruct/builtins.go b/pkg/binstruct/builtins.go deleted file mode 100644 index c791640..0000000 --- a/pkg/binstruct/builtins.go +++ /dev/null @@ -1,241 +0,0 @@ -package binstruct - -import ( - "encoding/binary" - "fmt" -) - -func needNBytes(t interface{}, dat []byte, n int) error { - if len(dat) < n { - return fmt.Errorf("%T.UnmarshalBinary: need at least %d bytes, only have %d", t, n, len(dat)) - } - return nil -} - -// unsigned - -type u8 uint8 - -func (u8) BinaryStaticSize() int { return 1 } -func (x u8) MarshalBinary() ([]byte, error) { return []byte{byte(x)}, nil } -func (x *u8) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 1); err != nil { - return 0, err - } - *x = u8(dat[0]) - return 1, nil -} - -// unsigned little endian - -type u16le uint16 - -func (u16le) BinaryStaticSize() int { return 2 } -func (x u16le) MarshalBinary() ([]byte, error) { - var buf [2]byte - binary.LittleEndian.PutUint16(buf[:], uint16(x)) - return buf[:], nil -} -func (x *u16le) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 2); err != nil { - return 0, err - } - *x = u16le(binary.LittleEndian.Uint16(dat)) - return 2, nil -} - -type u32le uint32 - -func (u32le) BinaryStaticSize() int { return 4 } -func (x u32le) MarshalBinary() ([]byte, error) { - var buf [4]byte - binary.LittleEndian.PutUint32(buf[:], uint32(x)) - return buf[:], nil -} -func (x *u32le) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 4); err != nil { - return 0, err - } - *x = u32le(binary.LittleEndian.Uint32(dat)) - return 2, nil -} - -type u64le uint64 - -func (u64le) BinaryStaticSize() int { return 8 } -func (x u64le) MarshalBinary() ([]byte, error) { - var buf [8]byte - binary.LittleEndian.PutUint64(buf[:], uint64(x)) - return buf[:], nil -} -func (x *u64le) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 8); err != nil { - return 0, err - } - *x = u64le(binary.LittleEndian.Uint64(dat)) - return 2, nil -} - -// unsigned big endian - -type u16be uint16 - -func (u16be) BinaryStaticSize() int { return 2 } -func (x u16be) MarshalBinary() ([]byte, error) { - var buf [2]byte - binary.BigEndian.PutUint16(buf[:], uint16(x)) - return buf[:], nil -} -func (x *u16be) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 2); err != nil { - return 0, err - } - *x = u16be(binary.BigEndian.Uint16(dat)) - return 2, nil -} - -type u32be uint32 - -func (u32be) BinaryStaticSize() int { return 4 } -func (x u32be) MarshalBinary() ([]byte, error) { - var buf [4]byte - binary.BigEndian.PutUint32(buf[:], uint32(x)) - return buf[:], nil -} -func (x *u32be) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 4); err != nil { - return 0, err - } - *x = u32be(binary.BigEndian.Uint32(dat)) - return 2, nil -} - -type u64be uint64 - -func (u64be) BinaryStaticSize() int { return 8 } -func (x u64be) MarshalBinary() ([]byte, error) { - var buf [8]byte - binary.BigEndian.PutUint64(buf[:], uint64(x)) - return buf[:], nil -} -func (x *u64be) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 8); err != nil { - return 0, err - } - *x = u64be(binary.BigEndian.Uint64(dat)) - return 2, nil -} - -// signed - -type i8 int8 - -func (i8) BinaryStaticSize() int { return 1 } -func (x i8) MarshalBinary() ([]byte, error) { return []byte{byte(x)}, nil } -func (x *i8) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 1); err != nil { - return 0, err - } - *x = i8(dat[0]) - return 1, nil -} - -// signed little endian - -type i16le int16 - -func (i16le) BinaryStaticSize() int { return 2 } -func (x i16le) MarshalBinary() ([]byte, error) { - var buf [2]byte - binary.LittleEndian.PutUint16(buf[:], uint16(x)) - return buf[:], nil -} -func (x *i16le) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 2); err != nil { - return 0, err - } - *x = i16le(binary.LittleEndian.Uint16(dat)) - return 2, nil -} - -type i32le int32 - -func (i32le) BinaryStaticSize() int { return 4 } -func (x i32le) MarshalBinary() ([]byte, error) { - var buf [4]byte - binary.LittleEndian.PutUint32(buf[:], uint32(x)) - return buf[:], nil -} -func (x *i32le) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 4); err != nil { - return 0, err - } - *x = i32le(binary.LittleEndian.Uint32(dat)) - return 2, nil -} - -type i64le int64 - -func (i64le) BinaryStaticSize() int { return 8 } -func (x i64le) MarshalBinary() ([]byte, error) { - var buf [8]byte - binary.LittleEndian.PutUint64(buf[:], uint64(x)) - return buf[:], nil -} -func (x *i64le) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 8); err != nil { - return 0, err - } - *x = i64le(binary.LittleEndian.Uint64(dat)) - return 2, nil -} - -// signed big endian - -type i16be int16 - -func (i16be) BinaryStaticSize() int { return 2 } -func (x i16be) MarshalBinary() ([]byte, error) { - var buf [2]byte - binary.BigEndian.PutUint16(buf[:], uint16(x)) - return buf[:], nil -} -func (x *i16be) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 2); err != nil { - return 0, err - } - *x = i16be(binary.BigEndian.Uint16(dat)) - return 2, nil -} - -type i32be int32 - -func (i32be) BinaryStaticSize() int { return 4 } -func (x i32be) MarshalBinary() ([]byte, error) { - var buf [4]byte - binary.BigEndian.PutUint32(buf[:], uint32(x)) - return buf[:], nil -} -func (x *i32be) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 4); err != nil { - return 0, err - } - *x = i32be(binary.BigEndian.Uint32(dat)) - return 2, nil -} - -type i64be int64 - -func (i64be) BinaryStaticSize() int { return 8 } -func (x i64be) MarshalBinary() ([]byte, error) { - var buf [8]byte - binary.BigEndian.PutUint64(buf[:], uint64(x)) - return buf[:], nil -} -func (x *i64be) UnmarshalBinary(dat []byte) (int, error) { - if err := needNBytes(*x, dat, 8); err != nil { - return 0, err - } - *x = i64be(binary.BigEndian.Uint64(dat)) - return 2, nil -} |