Home/ Questions/Q 432453
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-12T20:04:34+00:00

I’ve found lots of libraries to help with parsing command-line arguments, but none of

  • 0

I’ve found lots of libraries to help with parsing command-line arguments, but none of them seem to deal with handling filenames. If I receive something like “../foo” on the command line, how do I figure out the full path to the file?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    POSIX has realpath().

    #include <stdlib.h>
char *realpath(const char *filename, char *resolvedname);

    DESCRIPTION
    The realpath() function derives, from the pathname pointed to by filename, an absolute pathname that names the same file, whose resolution does not involve “.”, “..”, or symbolic links. The generated pathname is stored, up to a maximum of {PATH_MAX} bytes, in the buffer pointed to by resolvedname.

    • 0