From owner-freebsd-hackers  Fri Aug  7 00:59:11 1998
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Date: Fri, 07 Aug 1998 08:59:03 +0100
From: Karl Pielorz <kpielorz@tdx.co.uk>
Organization: TDX
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Subject: getpwuid - after chroot?
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Hi,

Is there a workaround for using getpwuid() after you've chroot'd at all? - e.g.
with the code below?

I think the reason it _doesn't_ work is because once you've chroot'd the system
can't get back to the '/etc/pwd.db' file etc.? - Is there any way round this?

Apparently the following code does actually work on other systems... Someone
mentioned Linux, but I don't have access to any Linux boxes to test it ;-)

Regards,

Karl Pielorz

----
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <pwd.h>

int main()
{
  setpassent(1);
  getpwent();

  chroot("/usr");
  chdir("/");
  if(!getpwuid(0)) {
    printf("setpassent doesn't appear to work\n");
  } else {
    if(!getpwuid(0))
      printf("second getpwuid(0) didn't work\n");
    else
      printf("setpassent works\n");
  }
  return 0;
}

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