>Number:         2369
>Category:       lib
>Synopsis:       freopen fails on closed input stream
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people (Library Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu May  2 21:20:04 1996
>Last-Modified:
>Originator:     Josh MacDonald
>Organization:
	
>Release:        1.1
>Environment:
	
System: NetBSD rum.csua.berkeley.edu 1.1 NetBSD 1.1 (PENDOR) #0: Sat Jan 29 07:28:53 PST 1994 root@shardik.berkeley.edu:/usr/src/sys/arch/pmax/compile/PENDOR pmax

I noticed this on FreeBSD machine, so I'm relatively sure this 
is a bug on all NetBSD archs.



>Description:
	
The following code:

int main()
{
  close(0);
  if(!freopen("whatever", "r", stdin)) {
    perror("freopen");
    exit(1);
  } 
  while(fgetc(stdin) != EOF) { }
  if(ferror(stdin)) {
    perror("stdin");
    exit(1);
  } 
  printf("its okay\n");
  exit(0);
}   

will exit with a Bad file descriptor error.  ANSI C mandates that
freopen should ignore the success of closing the previous stream.

>How-To-Repeat:
	
>Fix:
	
I'm hoping someone else can fix this easily, I'm busy with finals.

-josh
>Audit-Trail:
>Unformatted: