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61 lines
1.5 KiB
61 lines
1.5 KiB
package main |
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import ( |
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"fmt" |
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"strings" |
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"regexp" |
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"io/ioutil" |
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"encoding/hex" |
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) |
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func main() { |
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// How to split on space-delimited fields, then colon-delimited fields? |
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// How to turn this byte into a string? |
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// /proc/net/tcp hex addresses need to be reversed two-character-wise |
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// and then converted byte by byte (2 char at a time) |
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//fmt.Println(convert_address(reverse_string(reverse_bytes("0100007F")))) |
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read_tcp_file("/proc/net/tcp") |
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} |
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func check(e error) { |
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if e != nil { |
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panic(e) |
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} |
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} |
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// Take a string, create a rune slice, and use a loop to reverse it character-wise. |
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func reverse_bytes(s string) string { |
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runes := []rune(s) |
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for i, j := len(runes)-2, len(runes)-1; j > 0; i, j = i-2, j-2 { |
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runes[i], runes[j] = runes[j], runes[i] |
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} |
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return string(runes) |
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} |
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func reverse_string(s string) string { |
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runes := []rune(s) |
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for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 { |
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runes[i], runes[j] = runes[j], runes[i] |
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} |
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return string(runes) |
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} |
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// Store data function |
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// Loads all fields and subfields into storage (memory? where?) |
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// State check function |
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// hash each line, use to determine new lines, convert to readable, and print |
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func convert_address(address string) []byte { |
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output, err := hex.DecodeString(address) |
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check(err) |
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return output |
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} |
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func read_tcp_file(connections_file_path string) string { |
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data, err := ioutil.ReadFile(connections_file_path) |
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check(err) |
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fmt.Println("Data file read successfully.\n") |
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return string(data) |
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}
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