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fix(type): check buffer length

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This commit is contained in:
Tomas Aparicio 2016-09-27 21:40:26 +01:00
parent 5e79759297
commit ac42bba851
1 changed files with 3 additions and 0 deletions
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3
type.go
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@ -61,6 +61,9 @@ var SupportedImageTypes = map[ImageType]bool{
// isBinary checks if the given buffer is a binary file.
func isBinary(buf []byte) bool {
if len(buf) < 24 {
return false
}
for i := 0; i < 24; i++ {
charCode, _ := utf8.DecodeRuneInString(string(buf[i]))
if charCode == 65533 || charCode <= 8 {