From:	sandmann AT clio DOT rice DOT edu (Charles Sandmann)
Message-Id:	<10212130754.AA20902@clio.rice.edu>
Subject:	proposed putpath.c patch
To:	djgpp-workers AT delorie DOT com (DJGPP developers)
Date:	Fri, 13 Dec 2002 01:54:23 -0600 (CST)
X-Mailer:	ELM [version 2.5 PL2]
Mime-Version:	1.0
Reply-To:	djgpp-workers AT delorie DOT com

This patch makes the /dev directory work for me in most cases.


*** putpath.c_	Mon Oct 21 00:28:30 2002
--- putpath.c	Fri Dec 13 01:51:48 2002
***************
*** 10,13 ****
--- 10,15 ----
  #include <string.h>
  #include <errno.h>
+ #include <io.h>
+ #include <dpmi.h>
  
  static const char env_delim = '~';
*************** _put_path2(const char *path, int offset)
*** 146,151 ****
        path = p;
      }
!     else if (p[5])
!       path = p + 5;
    }
  
--- 148,172 ----
        path = p;
      }
!     else	/* Don't recognize item after /dev, remove if no directory */
!     {
!       __dpmi_regs r;
!       const long *q;
! 
!       q = (const long *)path;
!       _farnspokel(o, *q);			/* First 8 characters */
!       _farnspokel(o+4, *(q+1));
!       if (path[4] == '/')
!         _farnspokeb(o+4, 0);			/* /dev */
!       else
!         _farnspokeb(o+6, 0);			/* d:/dev */
!  
!       r.x.ax = 0x4300;
!       r.x.dx = __tb_offset;
!       r.x.ds = __tb_segment;
!       __dpmi_int(0x21, &r);
!       if ((r.x.flags & 1) || !(r.x.cx & 0x10) )	/* Exist?  Directory? */
!         if (p[5])
!           path = p + 5;
!     }
    }
  

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