fix set hostname

Previously, when we set hostname:

$ strace hostname abc
...
sethostname("abc", 3) = -1 ENAMETOOLONG (File name too long)
...

According to man 2 sethostname:

"The len argument specifies the number of bytes in name. (Thus, name
does not require a terminating null byte.)"

We wrongly use the CopyStringIn() to check terminating zero byte in
the implementation of sethostname syscall.

To fix this, we use CopyInBytes() instead.

Fixes: #861

Reported-by: chenglang.hy <chenglang.hy@antfin.com>
Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com>

0 files changed, 0 insertions, 0 deletions