함수 ip2int()

ip2long()

INET_ATON()

1 Bash

function ip2long() {
	IFS='.' read -ra nums <<< "$1"
	if [ ${#nums[@]} -ne 4 ]; then echo -1; return; fi
	temp=0
	for num in "${nums[@]}"; do
		if [ "$num" != "$((10#$num))" ]||[ $num -lt 0 ]||[ $num -gt 255 ]; then echo -1; return; fi
		temp=$((temp*256+num))
	done	
	echo $temp
}

ip2long 0.0.0.0
ip2long 0.0.0.1
ip2long 0.0.1.0
ip2long 255.255.255.255
ip2long 135.79.246.80
# 0
# 1
# 256
# 4294967295
# 2270164560
ip2long 0.0.0.256
ip2long 0.0.0.0.0
ip2long 0.0.0.00
ip2long 135.79.246.080
# -1
# -1
# -1
# -1

2 SQL

2.1 MySQL

MySQL INET_ATON() 문서를 참고하십시오.

SELECT INET_ATON('0.0.0.0');
-- 0
SELECT INET_ATON('0.0.0.1');
-- 1
SELECT INET_ATON('0.0.1.0');
-- 256

SELECT INET_ATON('255.255.255.255');
-- 4294967295
SELECT INET_ATON('135.79.246.80');
-- 2270164560

3 PHP

PHP ip2long() 문서를 참고하십시오.

echo ip2long('0.0.0.0');
# 0
echo ip2long('0.0.0.1');
# 1
echo ip2long('0.0.1.0');
# 256
echo ip2long('255.255.255.255');
// 4294967295
var_dump( ip2long('135.79.246.80') );
// int(2270164560)
var_dump( ip2long('135.79.246.080') );
// bool(false)

4 Python

from socket import inet_aton
from struct import unpack

def ip2long(ip_addr):
	try: return unpack("!L", inet_aton(ip_addr))[0]
	except IOError: return None

print( ip2long('0.0.0.0') );
print( ip2long('0.0.0.1') );
print( ip2long('0.0.1.0') );
# 0
# 1
# 256
print( ip2long('255.255.255.255') );
print( ip2long('135.79.246.80') );
# 4294967295
# 2270164560
print( ip2long('135.79.246.080') );
# None

5 같이 보기

• 함수 long2ip()
• 함수 is_ip()
• IP 주소
• long