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rust·passage intermediate
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pub fn parse_port(input: &str) -> Result<u16, String> {↵
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match input.trim().parse::<u16>() {↵
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Ok(port) if port > 1024 => Ok(port),↵
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Ok(_) => Err("Port must be unprivileged (> 1024)".to_string()),↵
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Err(e) => Err(format!("Invalid port integer: {}", e)),↵
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}↵
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}
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