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q on fseek() & ftell() + tga files

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# 1  
Old 07-30-2008
q on fseek() & ftell() + tga files
In determining the true file size of a .tga file is the

Code:
fseek(fptr,0,SEEK_END);
file_size = ftell(fptr);

combination reliable ? The reason Im asking is because the value of file_size is in agreement with doing a

Code:
wc -c mytga.tga

however when I get the value of the extension area offset, it turns out to be much larger than the actual file size.

Thoughts and comments are much appreciated

James
# 2  
Old 07-30-2008
I don't know what tga is, but see this old post of mine: https://www.unix.com/45748-post6.html
# 3  
Old 07-31-2008
sparse files are also called files with 'holes' in them. It is an attempt to save physical disk usage. It causes what you seem to see in your file.
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