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How to get filename using C language

Hi,

I would like to get the filename from a folder by using C language.
For example, in path /Users/abc/Desktop/xyz/ there is a file named
"test.s" (file "test.s" is inside folder "xyz"). How should I write a
routine in C to get the file name "test.s" ? Thanks a lot.
Nov 13 '05
10 38003
hu*******@hotma il.com (Hughes) wrote in message news:<49******* *************** ****@posting.go ogle.com>...
Hi,

I would like to get the filename from a folder by using C language.
For example, in path /Users/abc/Desktop/xyz/ there is a file named
"test.s" (file "test.s" is inside folder "xyz"). How should I write a
routine in C to get the file name "test.s" ? Thanks a lot.

Assuming you mean "How do I extract the substring 'test.s' from the
string '/Users/abc/Desktop/xyz/test.s'", here's one approach:

#include <stdio.h>
#include <string.h>

char *file_from_path (char *pathname)
{
char *fname = NULL;

if (pathname)
{
fname = strrchr (pathname, '/') + 1;
}

return fname;
}

int main (void)
{
char pathname[] = "/Users/abc/Desktop/xyz/test.s";
char *fname = file_from_path (pathname);

printf ("path \"%s\", filename \"%s\"\n", pathname,
fname != NULL ? fname : "(null)");

return 0;
}

Read up on strrchr() for details.

If you're asking "How do I search for a particular file on my hard
drive", that's something that requires system-specific routines; C
does not provide high-level support for file system management.
Nov 13 '05 #11

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