Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!uunet!brunix!dga
From: dga@cs.brown.edu (Daniel Gerardo Aliaga)
Newsgroups: comp.unix.wizards
Subject: writing to stdin
Message-ID: <74654@brunix.UUCP>
Date: 6 May 91 20:14:12 GMT
Sender: news@brunix.UUCP
Reply-To: dga@cs.brown.edu (Daniel Gerardo Aliaga)
Organization: Brown University Department of Computer Science
Lines: 34


Is there any way for a process to write a string to its stdin, such that it 
can later be read again ?

For example, the following code does the job on SunOS:

#include <stdio.h>
#include <sys/termios.h>

main()
{
  static char msge[256] = "hello world";
  char   buf[256];
  int    i;

  printf("prompt> ");
  fflush(stdout);

  for (i=0; i<strlen(msge); i++)
     ioctl(0, TIOCSTI, &msge[i]);

  gets(buf);

  printf("input was: %s\n",buf);
}


But we would like to do the same on HPUX or generically on System V.

Thanks in advance.
 XXXXXXXXXXXXXXX       XXXXXXXXXXXXXXXXXX      Daniel G. Aliaga '91
          XXX         XXX     XXXXX            Brown University
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         XXXXXXXXXXXXXXXXX		 "Real men write self modifying code"