Re: bug#27640: Bug-report

[Bruno Haible]

Regarding https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27640 :

Hello Wolfgang,

What type of system is this? You are saying "Linux From Scratch version 8.0".
What type of libc is it using? There are several competing ones [1].

> > FAIL: test-getlogin
> > ===================
> > 
> > test-getlogin.c:92: assertion 'strcmp (pwd->pw_name, buf) == 0' failed
> > FAIL test-getlogin (exit status: 134)

Please run the 'test-getlogin' program with ltrace (or, alternatively,
insert printf statements that show what's going on). I get (in a regular
login, or with sudo):

$ ltrace ./test-getlogin
__libc_start_main(0x400b46, 1, 0x7ffef8724a78, 0x403db0 <unfinished ...>
getlogin()                                                                      
                 = "bruno"
ttyname(0)                                                                      
                 = "/dev/pts/13"
__xstat(1, "/dev/pts/13", 0x7ffef87248f0)                                       
                 = 0
getpwuid(1000, 0x7ffef87248f0, 0x7ffef87248f0, 0x7f3d50d1abb5)                  
                 = 0x7f3d50feadc0
strcmp("bruno", "bruno")                                                        
                 = 0
+++ exited (status 0) +++

What are the results for you?

What else, that affects the operation of getlogin(), ttyname(), getpwuid(),
could be special in your environment?

Bruno

[1] http://www.etalabs.net/compare_libcs.html