vendor github.com/containers/image/v5@v5.5.1

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 21 insertions, 4 deletions

diff --git a/vendor/github.com/klauspost/compress/zstd/bytereader.go b/vendor/github.com/klauspost/compress/zstd/bytereader.go
index f708df1c4..2c4fca17f 100644
--- a/vendor/github.com/klauspost/compress/zstd/bytereader.go
+++ b/vendor/github.com/klauspost/compress/zstd/bytereader.go
@@ -4,8 +4,6 @@
 
 package zstd
 
-import "encoding/binary"
-
 // byteReader provides a byte reader that reads
 // little endian values from a byte stream.
 // The input stream is manually advanced.
@@ -33,7 +31,8 @@ func (b *byteReader) overread() bool {
 
 // Int32 returns a little endian int32 starting at current offset.
 func (b byteReader) Int32() int32 {
-	b2 := b.b[b.off : b.off+4 : b.off+4]
+	b2 := b.b[b.off:]
+	b2 = b2[:4]
 	v3 := int32(b2[3])
 	v2 := int32(b2[2])
 	v1 := int32(b2[1])
@@ -57,7 +56,25 @@ func (b byteReader) Uint32() uint32 {
 		}
 		return v
 	}
-	return binary.LittleEndian.Uint32(b.b[b.off : b.off+4])
+	b2 := b.b[b.off:]
+	b2 = b2[:4]
+	v3 := uint32(b2[3])
+	v2 := uint32(b2[2])
+	v1 := uint32(b2[1])
+	v0 := uint32(b2[0])
+	return v0 | (v1 << 8) | (v2 << 16) | (v3 << 24)
+}
+
+// Uint32NC returns a little endian uint32 starting at current offset.
+// The caller must be sure if there are at least 4 bytes left.
+func (b byteReader) Uint32NC() uint32 {
+	b2 := b.b[b.off:]
+	b2 = b2[:4]
+	v3 := uint32(b2[3])
+	v2 := uint32(b2[2])
+	v1 := uint32(b2[1])
+	v0 := uint32(b2[0])
+	return v0 | (v1 << 8) | (v2 << 16) | (v3 << 24)
 }
 
 // unread returns the unread portion of the input.