Obtain filename from file pointer in C

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Getting Filename from file descriptor in C
How get fileName having FILE*?

Is there any way where I can find the file_name from a file-pointer in C?

fp = fopen(file,"r");

From fp, is it possible to get the file name which I have opened?

http://stackoverflow.com/questions/4305355/how-get-filename-having-file — Jonathan Wood, Mar 30 '12 at 05:54
http://stackoverflow.com/questions/1188757/getting-filename-from-file-descriptor-in-c — Jeegar Patel, Mar 30 '12 at 05:58
thanks for the refereces, and apologies for not looking at it before .. — Gaara, Mar 30 '12 at 06:09

score 1 · Answer 1 · answered Mar 30 '12 at 06:00

I believe not, because a file* could be to something that doesn't even have a name. There might be a platform dependent way, depending I. Your system, so if you don't care about portability, try looking at your compiler's definition of FILE if it has one. Odds are that your only way is to save the name when it's opened.

There are some other potentially hacky ways as well- check this link:

http://bytes.com/topic/c/answers/218921-how-get-filename-file-pointer

Cheers!

score 0 · Answer 2 · answered Mar 30 '12 at 05:54

0

See here for why this is hard, and can't be done in a portable way.

http://discuss.fogcreek.com/joelonsoftware5/default.asp?cmd=show&ixPost=179112

answered Mar 30 '12 at 05:54

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Obtain filename from file pointer in C

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