Re: how to get the file name

Nils O. Selåsdal wrote: 
marsarden wrote:

only has the FILE * handle , how to get the file name ?

for example,i have a function accpet a (FILE *)argumment and return the
file name : char * getfilename(FILE * fp);


You cannot.
Remember the filename when you opened it, if you can.

(though linux has some not always reliable way, get
the filedescriptor with the fileno() function ,
call the readlink function on the /proc/self/fd/<fd>
fd file. Do a ls -l /proc/self/fd to see what it's about)

One of the beauties of the design is that there is a many to one relationship between directory entries and files, so a given file may have many names.
.

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