From:	kjcole AT well DOT com (Kevin Cole)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Q: How do I pass long pathnames from the command line?
Date:	19 Dec 1997 18:06:06 GMT
Organization:	The Whole Earth 'Lectronic Link, Sausalito, CA
Lines:	97
Message-ID:	<67ed2e$6vl$1@was.hooked.net>
NNTP-Posting-Host:	well.com
Summary:	C:\>forget "D:\Program Files\" *.ABC fails
Keywords:	Win 95, long directory name from command line
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

[Source program at end of message -- KJC]

Hi.  I'm a FORTRAN programmer with a lot of experience with assember
languages on old mainframes, but very little C experience, though I've
been a Linux user for 3 years now. I recently downloaded my very first
copy of DJGPP from www.delorie.com (so I am assuming it's fairly current)
to a Windows 95 machine, and today I added this newsgroup to my list.
Below is a program I hammered together quickly, using the libc reference
examples.  I'm still working on it, so the comments reflect what it WILL
do when finished. It mostly works, as far as I have taken it, but I cannot
figure out how to pass directory strings like "C:\Program Files\" to it in
a way that it will understand.  I've tried various combinations of forward
slashes, backslashes, case changes, quotes, etc. (I'd like to avoid using
C:\PROGRA~1\, since this is supposed to be general enough to run on
several different machines, and not all will be searching through the
exact same tree.)

Is there a simple answer or can someone point me to the right docs?


------------------<80-column, fixed-width-font text below>--------------------

/************************************************************************
 *                                                                      *
 *      *** FORGET ***          Written by Kevin Cole   97.12.18        *
 *                                                                      *
 *    This was written in response to a need to empty cache files in    *
 * several subdirectories of unknown name and/or depth.  The files to   *
 * be deleted all end with the same extention but the root (base) name  *
 * may vary.  The idea was to construct something similar to the NT     *
 * FOR command, or the VAX/VMS DCL commands, or Unix's find or recurse  *
 * stuff.                                                               *
 *                                                                      *
 *    Usage:    FORGET start_path "filespec"                            *
 *                                                                      *
 *    No parameter is optional.  Wildcards may be used for the filespec *
 * but all constants must be UPPER CASE and quotes MUST be used around  *
 * the filespec!                                                        *
 *                                                                      *
 *      Example:        FORGET C:\ "*.ABC"                              *
 *                                                                      *
 ************************************************************************/

#include <stdlib.h>
#include <dir.h>
#include <errno.h>
#include <fnmatch.h>

char *spec;

int ff_walker(const char *path, const struct ffblk *ff)
{
  if (fnmatch(spec, ff->ff_name, FNM_PATHNAME) == 0)
    printf("%s\n", path);		/* change to a delete function */

/* The above printf is for debugging only and will become a delete/erase *
 * function when I get around to it.  The if below is a temporary thing  *
 * to stop the program from walking the tree at a specific location.     */

  if (strcmp(ff->ff_name, "XXXXX") == 0)		/* DEBUG */
    return 42;						/* DEBUG */
  return 0;
}
     
int main(int argc, char *argv[])
{
  printf("FORGET version 1.0 (c) Kevin Cole 1997\n\n");

  if (argc > 1)
    {
      char msg[80];
      spec = argv[2];

      sprintf(msg, "__file_tree_walk: %d",
                   __file_tree_walk(argv[1], ff_walker));
      if (errno)
        perror(msg);
      else
        puts(msg);
    }
  else
    {
      printf("Usage: forget start_path \"filespec\"\n\n");
      printf("       Quotes required, wildcard allowed, no lowercase\n");
    }
  return 0;
}

--
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