Skip first char on little endian mach-o check

Tom Fay · Tom Fay · commit 097fff025e34 · 2022-08-05T13:26:30.000+01:00
diff --git a/rustaudit.go b/rustaudit.go
@@ -83,7 +83,7 @@ func GetDependencyInfo(r io.ReaderAt) (VersionInfo, error) {
 			return VersionInfo{}, ErrUnknownFileFormat
 		}
 		x = &peExe{f}
-	case bytes.HasPrefix(header, machoHeader) || bytes.HasPrefix(header, machoHeaderLittleEndian) || bytes.HasPrefix(header, machoUniversalHeader):
+	case bytes.HasPrefix(header, machoHeader) || bytes.HasPrefix(header[1:], machoHeaderLittleEndian) || bytes.HasPrefix(header, machoUniversalHeader):
 		f, err := macho.NewFile(r)
 		if err != nil {
 			return VersionInfo{}, ErrUnknownFileFormat

Original file line number	Diff line number	Diff line change
`@@ -83,7 +83,7 @@ func GetDependencyInfo(r io.ReaderAt) (VersionInfo, error) {`
`83`	`83`	`return VersionInfo{}, ErrUnknownFileFormat`
`84`	`84`	`}`
`85`	`85`	`x = &peExe{f}`
`86`		`- case bytes.HasPrefix(header, machoHeader) \|\| bytes.HasPrefix(header, machoHeaderLittleEndian) \|\| bytes.HasPrefix(header, machoUniversalHeader):`
	`86`	`+ case bytes.HasPrefix(header, machoHeader) \|\| bytes.HasPrefix(header[1:], machoHeaderLittleEndian) \|\| bytes.HasPrefix(header, machoUniversalHeader):`
`87`	`87`	`f, err := macho.NewFile(r)`
`88`	`88`	`if err != nil {`
`89`	`89`	`return VersionInfo{}, ErrUnknownFileFormat`