11-12-2008
perl pack and unpack commands
I have a file that contains user id and corresponding password.
Lets say password is "help". The below command will create a hex value for string "help".
perl -e 'print unpack "H*","help"'
So now password is in encoded format.
Then I decoded it in the script where am fetching the password.
perl -e 'print pack "H*","77636462614e3031"'
Now you help is required. In the second step when I am passing the hardcoded value, then it is able to decode it.
But when I am using a variable it is not working.
ex: var="77636462614e3031"
perl -e 'print pack "H*",$var'
This doesn't work. Let me know the syntax so that it will return correct value when I use it in a variable?
I am trying to execute this perl commands in LINUX OS.
Please help.
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LEARN ABOUT DEBIAN
merge_fonts
merge_fonts(3alleg4) Allegro manual merge_fonts(3alleg4)
NAME
merge_fonts - Merges two fonts into one font. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
FONT *merge_fonts(FONT *f1, FONT *f2)
DESCRIPTION
This function merges the character ranges from two fonts and returns a new font containing all characters in the old fonts. In general, you
cannot merge fonts of different types (eg, TrueType fonts and bitmapped fonts), but as a special case, this function can promote a mono-
chrome bitmapped font to a color font and merge those. Example:
FONT *myfont;
FONT *myfancy_font;
FONT *lower_range;
FONT *upper_range;
FONT *capitals;
FONT *combined_font;
FONT *tempfont;
...
/* Create a font that contains the capitals from */
/* the fancy font but other characters from myfont */
lower_range = extract_font_range(myfont, -1, 'A'-1);
upper_range = extract_font_range(myfont, 'Z'+1, -1);
capitals = extract_font_range(myfancy_font, 'A', 'Z');
tempfont = merge_fonts(lower_range, capitals);
combined_font = merge_fonts(tempfont, upper_range);
/* Clean up temporary fonts */
destroy_font(lower_range);
destroy_font(upper_range);
destroy_font(capitals);
destroy_font(tempfont);
RETURN VALUE
Returns a pointer to the new font or NULL on error. Remember that you are responsible for destroying the font when you are finished with it
to avoid memory leaks.
SEE ALSO
extract_font_range(3alleg4), is_trans_font(3alleg4), is_color_font(3alleg4), is_mono_font(3alleg4), exfont(3alleg4)
Allegro version 4.4.2 merge_fonts(3alleg4)