converting hex to char

[semio]

I'm looking for ways to convert a given hex value to its char equivalent. For example, converting hex 61 should result in char "a", hex 62 should convert to char "b", etc. I spent some time with available functions for converting values, e.g. I looked at perlfunc hex, but it is used for converting from hex to dec. I also looked at perlfunc pack but this didn't appear to present the results I'm looking for.

cheers! -semio

[DamnDirtyApe]

You want to use either chr, or sprintf's %c.

perl -e 'print map { chr } 0x61, 0x62, 0x63'
perl -e 'printf "%c%c%c", 0x61, 0x62, 0x63'


_______________
DamnDirtyApe

Those who know that they are profound strive for clarity. Those who
would like to seem profound to the crowd strive for obscurity.
            --Friedrich Nietzsche

[merlyn]

print pack "H*", "6162";

But if your question is about converting URIs, please ask that instead. You'll want to become familiar with URI.

-- Randal L. Schwartz, Perl hacker

[semio]

thanks DamnDirtyApe, adrianh, sauoq and merlyn for the great advice. To give you an idea as for the basis of my question, I'm interesting in building a small tool that will convert hex content in a Snort IDS signature to a char value and, conversely, take a known attack string and quickly convert it to hex for signature creation. I'll probably use something like

print unpack "H*", "abc";

for the char to hex conversion.

cheers! -semio

[merlyn]

You actually prefer

printf "%x%x%x",ord('a'),ord('b'),ord('c')

to

print unpack "H*", "abc"

!!??! Remind me not to hire you.

-- Randal L. Schwartz, Perl hacker

[adrianh]

Use chr with hex... for example

use strict;
use warnings;
use Test::More tests => 1;

is(chr(hex('62')), 'b', 'hex -> char worked');

gives us

1..1
ok 1 - hex -> char worked

Hope this helps.

[sauoq]

TIMTOWTDI and all that. . .

perl -le 'print pack "ccc", 0x61, hex(62), hex("63")'

-sauoq
"My two cents aren't worth a dime.";