[LTP] setregid04_16

[Cyril Hrubis]

Hi!
> please, help with the below error.

What LTP version you have? What kernel version? What glibc version? What
architecture? Have you tried to strace the testcase to check that
correct syscall is called?

> root@:/opt/ltp# ./testcases/bin/setregid04_16
> setregid04_16    1  TPASS  :  real or effective gid was modified as expected
> setregid04_16    2  TFAIL  :  setregid04.c:146: ERROR: After
> setregid(users, -1) real gid = 100; effective gid = 65535
> setregid04_16    0  TINFO  :  Expected: real gid = 100; effective gid = 0
> setregid04_16    3  TFAIL  :  setregid04.c:146: ERROR: After
> setregid(root,-1), real gid = 0; effective gid = 65535
> setregid04_16    0  TINFO  :  Expected: real gid = 0; effective gid = 0
> setregid04_16    4  TFAIL  :  setregid04.c:146: ERROR: After
> setregid(-1, -1), real gid = 65535; effective gid = 65535
> setregid04_16    0  TINFO  :  Expected: real gid = 0; effective gid = 0
> setregid04_16    5  TFAIL  :  setregid04.c:146: ERROR: After
> setregid(-1, root) real gid = 65535; effective gid = 0
> setregid04_16    0  TINFO  :  Expected: real gid = 0; effective gid = 0
> setregid04_16    6  TFAIL  :  setregid04.c:146: ERROR: After
> setregid(root, -1), real gid = 0; effective gid = 65535
> setregid04_16    0  TINFO  :  Expected: real gid = 0; effective gid = 0
> setregid04_16    7  TPASS  :  real or effective gid was modified as expected
> setregid04_16    8  TFAIL  :  setregid04.c:146: ERROR: After
> setregid(-1, -1) real gid = 65535; effective gid = 65535
> setregid04_16    0  TINFO  :  Expected: real gid = 1; effective gid = 100
> setregid04_16    9  TFAIL  :  setregid04.c:146: ERROR: After
> setregid(-1, users) real gid = 65535; effective gid = 100
> setregid04_16    0  TINFO  :  Expected: real gid = 1; effective gid = 100

Hmm, the gid set to -1 should not change the real/efective gid something
is wrong here and the value -1 (65535 when printed as unsigned int) does
change it. No idea what went wrong though.

-- 
Cyril Hrubis
chrubis@suse.cz