mirror of
https://github.com/bettercap/bettercap.git
synced 2024-09-18 14:40:21 -07:00
35 lines
621 B
Go
35 lines
621 B
Go
package syn_scan
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import (
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"bufio"
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"fmt"
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"net"
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"strconv"
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"strings"
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)
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func cleanBanner(banner string) string {
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clean := ""
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for _, c := range banner {
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if strconv.IsPrint(c) {
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clean += string(c)
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}
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}
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return clean
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}
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func tcpGrabber(mod *SynScanner, ip string, port int) string {
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dialer := net.Dialer{
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Timeout: bannerGrabTimeout,
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}
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if conn, err := dialer.Dial("tcp", fmt.Sprintf("%s:%d", ip, port)); err == nil {
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defer conn.Close()
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msg, _ := bufio.NewReader(conn).ReadString('\n')
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return cleanBanner(strings.Trim(msg, "\r\n\t "))
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} else {
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mod.Debug("%s:%d : %v", ip, port, err)
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}
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return ""
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}
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