xinternetx

P-A-R-U-S / Golang-IP-to-CIDR

Created March 16, 2018 22:53

Go: Convert IP to CIDR

	/ Convert IPv4 range into CIDR
	func iPv4RangeToCIDRRange(ipStart string, ipEnd string) (cidrs []string, err error) {

	cidr2mask := []uint32{
	0x00000000, 0x80000000, 0xC0000000,
	0xE0000000, 0xF0000000, 0xF8000000,
	0xFC000000, 0xFE000000, 0xFF000000,
	0xFF800000, 0xFFC00000, 0xFFE00000,
	0xFFF00000, 0xFFF80000, 0xFFFC0000,
	0xFFFE0000, 0xFFFF0000, 0xFFFF8000,