Bug#93362: getpwuid() doesn't work

[David Whedon <dwhedon@debian.org>]

Package: boot-floppies
Version: N/A; reported 2001-04-09
Severity: critical

This is the root cause of the 'id -u' problem.  I don't believe the problem is
with busybox, I think we are missing something on our filesystem, a library, a
config file, I don't know which.

At the end of this messages I have a program that demonstrates the problem.
Test it on a working system and you get something like:

# ./a.out 
you are root
#

Test it is a chroot'ed root.bin[1] and you get:
# ./a.out
failure.
# 



#include <stdlib.h>
#include <pwd.h>
#include<sys/types.h>
#include <stdio.h>

int
main ()
{
  struct passwd *myuser;
  myuser = getpwuid (0);

  if (myuser != NULL)
    printf ("you are %s\n", myuser->pw_name);
  else
    printf ("failure.\n");

  return 0;

}

[1] : What I mean by a chroot'ed root.bin is something like this:
# gunzip -c -S ""  root.bin > root.ext2
# mount root.ext2 /mnt/chroot/ -t ext2 -o loop
# cd /mnt/chroot/
# chroot . bin/sh


-- System Information
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux ruff 2.2.17 #2 Sat Dec 30 11:46:38 PST 2000 i686