From:	"Graham Reeds" <grahamr AT ntlworld DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Extracting a directory name.
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Date:	Mon, 18 Jun 2001 16:22:10 +0100
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

I have a piece of code which isn't working, and I can't think for the life
of me why.  I have isolated the fault down to these lines with my
error-checking (printf()s) still in:

    Ptr = strrchr(Directory, '\\');
    bytestocopy = strlen(Directory) - strlen(Ptr);
    printf("%i\n", bytestocopy);
    strcpy(FileName, Ptr+1);
    strncpy(BaseDir, Directory, bytestocopy);
    printf("BaseDir: %s (%li)\n", BaseDir, strlen(BaseDir));

All the code does is take in a Directory (i.e:  'temp\downloads' or
'temp\downloads\images') and return the last path after the slash (using the
previous examples 'downloads' and 'images').  This works.  However I also
need the info before the slash, and this is the piece that isn't working.
The amount to copy is strlen(Directory) - strlen(Ptr) but for some reason
always appends 2 extra bytes to the end or assorted gibberish (in the first
example I've got 'tempÛç').  I've tried to append a null byte to terminate
it with strcat() but that doesn't do anything either. I've got a feeling
I've probably missed something very basic, and it is beginning to frustrate
me.

Any ideas why?

--

Thanks, Graham Reeds.

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