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Inline warnings

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Posted by Robert Powell   Australia  (349 posts)  [Biography] bio
Date Mon 26 Oct 2009 03:20 AM (UTC)  [ quote  ]
Message

/usr/include/bits/stdio2.h:79: warning: call to int __builtin___vsnprintf_chk(char*, unsigned int, int, unsigned int, const char*, char*) will always overflow destination buffer



void BufPrintf ( BUFFER * buffer, char * fmt, ... )
{
    char buf[MSL];
    va_list args;

    va_start ( args, fmt );
    vsnprintf ( buf, LBUF, fmt, args );
    va_end ( args );

    add_buf ( buffer, buf );
    return;
}


Ok, from what i can gather inline errors come up from using the wrong tool for the job, the others i have been able to fix myself, but i do not know what to do with this one, what should be used in this situation instead of vsnprintf.
EldhaMUD Game Developments
The_Fury: Lead Developer, Head Coder
http://fury.eldhamud2.org
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Posted by David Haley   USA  (3,881 posts)  [Biography] bio   Moderator
Date Reply #1 on Mon 26 Oct 2009 04:28 AM (UTC)  [ quote  ]

Amended on Mon 26 Oct 2009 04:29 AM (UTC) by David Haley

Message
You need to make sure that you're using the right size. Why are you allocating a buffer of size MSL, but telling vsnprintf to use size LBUF? Basically, the compiler is telling you that this is guaranteed to fail, because it can see that LBUF is bigger than the size of buf, which is MSL.


By the way, what is the "inline warning" here?
David Haley aka Ksilyan
Head Programmer,
Legends of the Darkstone

http://david.the-haleys.org
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Posted by Robert Powell   Australia  (349 posts)  [Biography] bio
Date Reply #2 on Mon 26 Oct 2009 06:55 AM (UTC)  [ quote  ]
Message
LOL yeah i posted the wrong warning and associated code, i will get to the inlines soon :)
EldhaMUD Game Developments
The_Fury: Lead Developer, Head Coder
http://fury.eldhamud2.org
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