socket / sysread - Probleme (Netzwerkprogrammierung und Netzwerke mit Perl)

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socket / sysread - Probleme

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esskar

2005-02-28 17:55

User since
2003-08-04
7321 Artikel
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perldoc -f ord ord EXPR ord Returns the numeric (the native 8-bit encoding, like ASCII or EBCDIC, or Unicode) value of the first character of EXPR.

Quote
Don't use functions you do not understand!
If you don't understand WHAT are they doing, and how do control what are they doing, simply don't use them. You don't have to know HOW are they doing it, but if you don't feel you understand properly how to use them ... ask someone to help you with the code, let someone review the code, read the documentation ten more times or use something else
--Jenda Krynicky

;)\n\n

Gast Gast

2005-02-28 17:50

Hallo,
ich habe Probleme einen Hex-String von einer Socketverbindung zu lesen. Ankommen sollte z.B. "01 03 04 a0 ad 41 a4 78 39 "
...
my $buffer = "";
sysread(SOCK, $buffer, 1024, 0);
$buffer = ord($buffer);
print "$buffer \n";
...
so ich krieg aber nur den ersten Abschnitt zurück.
wir bring ich sysread dazu, auch den Rest auszulesen?
hat jemand ne idee?
Danke, Ratz

Relais

2005-02-28 17:57

User since
2003-08-06
2246 Artikel
ModeratorIn

indem Du den sysread() - Aufruf wiederholst, zum Beispiel in einer while-Schleife.

Code: (dl )

while ( sysread( ... ) ){ print( ord( $buffer ), "\n" ) }

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