tobias
1cbf8afb4a
- Untrack and delete compiled binaries (tarsum, gosoft.exe, rust uniq/uniq2);
ignore build outputs (dist/, bin/, *.exe, *.test, .ruff_cache/)
- Merge tools/go/ and projects/go-tools/go/ into projects/go-tools/<name>/
- Fix goipgrep .gitignore: bare 'ipgrep' pattern was ignoring cmd/ipgrep/,
so the main entrypoint was never tracked; now anchored to /ipgrep
- Archive duplicate implementations to archive/experimental/{rust,go}/
(uniq, between, tarsum rewrites); canonical versions stay in tools/
- Update README tool catalog to match new layout
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
28 lines
534 B
Go
28 lines
534 B
Go
package normalize
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import (
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"fmt"
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"net"
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"strings"
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)
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// NormalizeIP validates an IP string and returns a canonical string form.
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// If allowIPv6 is false, only IPv4 is accepted.
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func NormalizeIP(s string, allowIPv6 bool) (string, bool) {
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s = strings.TrimSpace(s)
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if s == "" {
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return "", false
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}
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ip := net.ParseIP(s)
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if ip == nil {
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return "", false
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}
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if v4 := ip.To4(); v4 != nil {
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return fmt.Sprintf("%d.%d.%d.%d", v4[0], v4[1], v4[2], v4[3]), true
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}
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if !allowIPv6 {
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return "", false
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}
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return ip.String(), true
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}
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