Using non existent user segfaults prads when dropping privileges..

[gamelinux]

$ sudo ./prads -u jallal
...
...
[*] Dropping privs...
Segmentation fault

gdb shows me:
Program received signal SIGSEGV, Segmentation fault.
0x000000000040eb0f in drop_privs () at sys_func.c:245
245 userid = pw->pw_uid;
(gdb) bt full
#0 0x000000000040eb0f in drop_privs () at sys_func.c:245

    gr = 0x7ffff7661fbd
    pw = 0x0
    endptr = 0x0
    i = 0
    do_setuid = 1
    do_setgid = 1
    groupid = 0
    userid = 0
    __PRETTY_FUNCTION__ = "drop_privs"

#1 0x0000000000416af8 in main (argc=3, argv=0x7fffffffe758) at prads.c:1211

    ch = -1
    pconfile = 0x6b00e0
    __PRETTY_FUNCTION__ = "main"

[gamelinux]

commit 1605335
Author: gamelinux edwardfjellskaal@gmail.com
Date: Mon Dec 6 21:11:54 2010 +0000

closes issue 1 (github) segfault with b0gus user