🚀 go-pugleaf

Based on the following comparison of the output of the following program
compiled with Borland C++ 2.0 and Microsoft C 6.00, it seems that there
is a bug in the Borland stat() function whenever the root directory is
referenced.
I hope that the behaviour of the Microsoft library is correct; this is
the behaviour under Unix.


Can anyone confirm this ?

What about the behaviour of other compilers.
Which behaviour do they follow ?

Can anyone with Borland C++ 3.0/3.1 test to see if the behavior of stat.c
has changed from version 2.00 ?

Any replies greatly appreciated.

Cheers, Mark
------------------------------------------------------------------------
Mark Hessling                         Email: mark@snark.itc.gu.edu.au
DBA,ITS                               Phone: +617 875 7691
Griffith University                   Fax:   +617 875 7877
Nathan, Brisbane QLD 4111 Australia   *** PDCurses Maintainer ***
------------------------------------------------------------------------

stat.c
------

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
int main(int argc, char *argv[])
{
  struct stat stat_buf;
  int rc;
  rc = stat(argv[1],&stat_buf);
  printf("Return from stat():%x\n",rc);
  rc = S_IFDIR;
  printf("S_IFDIR value:%x\n",rc);
  rc = stat_buf.st_mode & S_IFMT;
  printf("st_mode & S_IFMT value:%x\n",rc);
}


Microsoft C 6.00                    Borland C++ 2.0
----------------                    ---------------

cl -AL stat.c                       bcc -ml stat.c

stat \                              stat \
Return from stat():0                Return from stat():ffff
S_IFDIR value:4000                  S_IFDIR value:4000
st_mode & S_IFMT value:4000         st_mode & S_IFMT value:7000

stat c:\                            stat c:\
Return from stat():0                Return from stat():ffff
S_IFDIR value:4000                  S_IFDIR value:4000
st_mode & S_IFMT value:4000         st_mode & S_IFMT value:1000

stat c:\c600\include\..\..          stat c:\c600\include\..\..
Return from stat():0                Return from stat():ffff
S_IFDIR value:4000                  S_IFDIR value:4000
st_mode & S_IFMT value:4000         st_mode & S_IFMT value:0

stat c:\c600\include                stat c:\c600\include
Return from stat():0                Return from stat():0
S_IFDIR value:4000                  S_IFDIR value:4000
st_mode & S_IFMT value:4000         st_mode & S_IFMT value:4000

stat .                              stat .
Return from stat():0                Return from stat():0
S_IFDIR value:4000                  S_IFDIR value:4000
st_mode & S_IFMT value:4000         st_mode & S_IFMT value:4000

stat ..                             stat ..
Return from stat():0                Return from stat():0
S_IFDIR value:4000                  S_IFDIR value:4000
st_mode & S_IFMT value:4000         st_mode & S_IFMT value:4000