[cups.general] Circular loop codes

[Michael Sweet]

What version of CUPS?

Current CUPS does not include any GIF loading code anymore, and I know we've fixed a few issues like this in the past before handing it over the the Linux Foundation...



On Aug 2, 2012, at 7:55 AM, bharadwaj <bharadwaj19apr at gmail.com> wrote:

> Hi,
> 
> else if (fresh)
>  {
>    fresh = 0;
> 
>    do
>    {
>      firstcode = oldcode = gif_get_code(fp, code_size, 0);
>    }
>    while (firstcode == clear_code);
> 
>    return (firstcode & 255);
>  }
> 
> In do-while should it be firstcode == clear_code >=. Since for one of the files which has clear_code=32. In first iteration i get 32, in 2nd iteration value is 44. Which is assigned in the table for entry 34. On continuing i get the table entries as
> 
> 		table[0][34]	44
> 		table[0][35]	34
> 		table[0][36]	35
> 		table[0][37]	36
> 		table[0][38]	37
> 		table[0][39]	38
> 		table[0][40]	39
> 		table[0][41]	40
> 		table[0][42]	41
> 		table[0][43]	42
> 		table[0][44]	43
> 
> and resulting in a loop, and stack overflow.
> 
> 
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_________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair