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| Garbage in MQ paramater |
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| angka |
 Posted: Mon Oct 10, 2005 1:55 am Post subject: Garbage in MQ paramater |
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Chevalier
Joined: 20 Sep 2005
Posts: 406
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Hi all,
Why when i try to get the data from pMQPXP->RemoteQName, there is garbage attached to the end of the data. Anyone can help? Thank you
Regards |
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| Nigelg |
| Posted: Mon Oct 10, 2005 5:39 am Post subject: |
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Grand Master
Joined: 02 Aug 2004
Posts: 1046
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Are you treating the data as a NULL-terminated string?
It is not, it is a string of length MQ_Q_NAME_LENGTH without a terminator.
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| angka |
| Posted: Mon Oct 10, 2005 7:34 pm Post subject: |
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Chevalier
Joined: 20 Sep 2005
Posts: 406
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Hi Nigelg,
So you mean I have to remove the garbage myself? Thank You.
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| RogerLacroix |
| Posted: Mon Oct 10, 2005 8:44 pm Post subject: |
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Jedi Knight
Joined: 15 May 2001
Posts: 3264
Location: London, ON Canada
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Hi,
| Quote: |
Are you treating the data as a NULL-terminated string?
It is not, it is a string of length MQ_Q_NAME_LENGTH without a terminator. |
| Quote: |
| So you mean I have to remove the garbage myself? |
You're kidding right?  
Did you read this posting?
http://www.mqseries.net/phpBB2/viewtopic.php?t=20523
So, you are a newbie C programmer who does not know the difference between a NULL terminted string and a string that is not NULL terminted!?!
This is C programming 101. Seriously, time to take a course or read a book. Programming a MQ exit is advanced concepts.
| Code: |
char qName[MQ_Q_NAME_LENGTH +1];
// copy it
memcpy(qName, pMQPXP->RemoteQName, MQ_Q_NAME_LENGTH);
// add a null terminator
qName[MQ_Q_NAME_LENGTH +1] = '\0'; |
Regards,
Roger Lacroix
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Capitalware: Transforming tomorrow into today.
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| angka |
| Posted: Thu Oct 13, 2005 1:08 am Post subject: |
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Chevalier
Joined: 20 Sep 2005
Posts: 406
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Hi RogerLacroix,
Thank you. I understand C and not a beginner. What I meant is i need to insert the Null terminator myself.
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| jefflowrey |
| Posted: Thu Oct 13, 2005 3:16 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| angka wrote: |
| What I meant is i need to insert the Null terminator myself. |
Why? It's a known-length string. You know exactly how long it is, so just use that.
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