Bug#35624: libc6: pclose() is broken

[UNO Takeshi <uno@sysplan.co.jp>]

Package: libc6
Version: 2.1.1-0.1
Severity: normal

Followed source(from man-db's configure) is test program for pclose().
On glibc2.0.7(slink), this program return 0, But on glibc2.1.1 it
return 1.
I don't know this solution.

#include <stdio.h>
#include <sys/wait.h>
int
try_pclose (FILE *f, int expected)
{
  int s;
  s = pclose (f);
  if (s != -1 && WIFEXITED (s))
    return WEXITSTATUS (s) != expected;
  else 
    return 1;
}
int
main (void)
{
  FILE *f, *t;
  int i, sf, st;
  for (i = 0;  i <= 1;  ++i) {
    f = popen ("false", "r");
    sleep (1);
    t = popen ("true", "r");
    sleep (1);
    if (i) {
      st = try_pclose (t, 0);
      sf = try_pclose (f, 1);
    } else {
      sf = try_pclose (f, 1);
      st = try_pclose (t, 0);
    }
    if (sf || st) exit(1);
  }
  exit(0);
}

Thanks.
--
UNO Takeshi