Path: utzoo!mnetor!uunet!nbires!hao!husc6!bu-cs!madd
From: madd@bu-cs.BU.EDU (Jim Frost)
Newsgroups: comp.sys.ibm.pc
Subject: Re: popen/pclose available for MS-DOS/MS C?
Message-ID: <20248@bu-cs.BU.EDU>
Date: 28 Feb 88 19:54:07 GMT
References: <446@cunixc.columbia.edu> <20244@bu-cs.BU.EDU>
Reply-To: madd@bu-it.bu.edu (Jim Frost)
Followup-To: comp.sys.ibm.pc
Organization: Boston University Distributed Systems Group
Lines: 28

Addendum to my posting of simple popen/pclose routines:

The function ufilen() is undefined; what it is supposed to do is
return a pointer to a string containing a unique file name.  I suppose
a real simple one could be like this:

-- cut here --
/* ufilen.c:
 *
 * returns a unique file name
 */

char *ufilen()
{ static char name[10];
  static int num= 0;

  sprintf(name,"\\pipe%d.tmp",num++);
  return(name);
}
-- cut here --

This would at least create a unique name for each pipe created by that
process.  A variety of better methods exist (such as using the MS-DOS
[version 3.0 or greater] function 5ah, Create Unique File [not
recommended for this type of use though]), so alter as necessary.

jim frost
madd@bu-it.bu.edu