55 lines
1.9 KiB
Bash
55 lines
1.9 KiB
Bash
#!/bin/zsh
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__zsh_is_public_ipv4() {
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local ip=$1
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if [[ $ip =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
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IFS='.' read -r -A ADDR <<< "$ip"
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if [[ ${ADDR[1]} -eq 10 ]]; then
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return 1
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elif [[ ${ADDR[1]} -eq 172 && ${ADDR[2]} -ge 16 && ${ADDR[2]} -le 31 ]]; then
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return 1
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elif [[ ${ADDR[1]} -eq 192 && ${ADDR[2]} -eq 168 ]]; then
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return 1
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else
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return 0
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fi
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else
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return 1
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fi
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}
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__zsh_get_ipv4() {
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local ipv4=$(ip route get 1.1.1.1 | head -1 | awk '{print $7}')
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if __zsh_is_public_ipv4 $ipv4; then echo "$ipv4"; return 0; fi
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ipv4=$(ip route get 1.1.1.1 | head -1 | awk '{print $NF}')
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if __zsh_is_public_ipv4 $ipv4; then echo "$ipv4"; return 0; fi
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ipv4=$(curl -4 -s ifconfig.me)
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if __zsh_is_public_ipv4 $ipv4; then echo "$ipv4"; return 0; fi
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ipv4=$(host -4 myip.opendns.com resolver1.opendns.com | grep "myip.opendns.com has" | awk '{print $4}')
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if __zsh_is_public_ipv4 $ipv4; then echo "$ipv4"; return 0; fi
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# echo "No public IPv4 address found"
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return 1
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}
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__zsh_get_ipv6() {
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if [[ "$(ip -6 route get 2001:4860:4860::8888 2>&1 | awk '{print $NF}')" == "unreachable" ]]; then
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echo "No IPv6 connectivity"
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return 1
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fi
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local ipv6=$(ip route get 2001:4860:4860::8888 | head -1 | awk '{print $11}')
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if [[ $ipv6 =~ ^([0-9a-fA-F]{0,4}:){7}[0-9a-fA-F]{0,4}$ ]]; then echo "$ipv6"; return 0; fi
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ipv6=$(ip route get 2001:4860:4860::8888 | head -1 | awk '{print $NF}')
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if [[ $ipv6 =~ ^([0-9a-fA-F]{0,4}:){7}[0-9a-fA-F]{0,4}$ ]]; then echo "$ipv6"; return 0; fi
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ipv6=$(curl -6 -s ifconfig.me)
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if [[ $ipv6 =~ ^([0-9a-fA-F]{0,4}:){7}[0-9a-fA-F]{0,4}$ ]]; then echo "$ipv6"; return 0; fi
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# echo "No public IPv6 address found"
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return 1
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}
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__zsh_get_ip() {
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__zsh_get_ipv4
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__zsh_get_ipv6
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}
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alias net='__zsh_get_ip'
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