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Top Forums UNIX for Dummies Questions & Answers Wireless network programming in Unix (question) Post 302447584 by aztroboy on Monday 23rd of August 2010 04:59:59 PM
Old 08-23-2010
Thank you very much for replying.

So sending data over sockets is a very low level approach. Structures are used to organize the data (bits or hex values).

Now, what if I'm unable to "organize" or "cast" such incomming traffic (in the case of packet sniffing with raw sockets) to a structure, but instead having to manually interpret the hex values in C? How can I "cast" these values in such case? (ie. I get: 77 6c 30 00 00 1c 10 c4 2d 70 08 00 45..." in hex, how do I convert it to actual data?)

thank you
 

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NetSDS::Util::Convert(3pm)				User Contributed Perl Documentation				NetSDS::Util::Convert(3pm)

NAME
NetSDS::Util::Convert - data formats conversion functions SYNOPSIS
use NetSDS::Util::Convert qw(...); DESCRIPTION
"NetSDS::Util::Convert" module contains miscelaneous functions. o CLI parameters processing o types validation o HEX, Base64, URI, BCD encondig o UUID processing EXPORTED FUNCTIONS
conv_conv_str_bcd($str) - convert string to little-endian BCD This function converts string to little-endian BCD encoding filled with F16 value. conv_chr_hex($char) - encode char to hexadecimal string $hex = conv_chr_hex('a'); # return 61 conv_hex_chr($hex) - convert hexadecimal string to character $chr = conv_hex_chr('4A'); # return 'J' conv_str_hex($str) - convert byte string to hexadecimal $str = 'Want hex dump!'; $hex = conv_hex_str($str); print "Hex string: " . $hex; conv_hex_str($string) - convert hex to byte string $hex = '7A686F7061'; $string = conv_hex_str($hex); print "String from hex: " . $string; conv_str_base64($str) - convert string to Base64 my $b64 = str_base64("Hallo, people!"); conv_base64_str($b64) - convert Base64 to string my $str = base64_str($base64_string); conv_str_uri($str) - convert string to URI encoded Example: my $uri = str_uri("http://www.google.com/?q=what"); conv_uri_str($uri) - decode URI encoded string Example: my $str = uri_str($uri_string); EXAMPLES
None BUGS
None TODO
1. Add other encodings support SEE ALSO
Pod::Usage, Data::UUID AUTHORS
Valentyn Solomko <pere@pere.org.ua> Michael Bochkaryov <misha@rattler.kiev.ua> perl v5.12.4 2011-08-27 NetSDS::Util::Convert(3pm)
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