Function Size

codesign_darwin.go:193–199

Size computes the size of the code signature. id is the identifier used for signing (a field in CodeDirectory blob, which has no significance in ad-hoc signing).

(codeSize int64, id string)

// id is the identifier used for signing (a field in CodeDirectory blob, which
// has no significance in ad-hoc signing).
func Size(codeSize int64, id string) int64 {
	nhashes := (codeSize + pageSize - 1) / pageSize
	idOff := int64(codeDirectorySize)
	hashOff := idOff + int64(len(id)+1)
	cdirSz := hashOff + nhashes*sha256.Size
	return int64(superBlobSize+blobSize) + cdirSz
}

// Sign generates an ad-hoc code signature and writes it to out.
// out must have length at least Size(codeSize, id).