diff options
Diffstat (limited to 'Kernel/Syscalls')
| -rw-r--r-- | Kernel/Syscalls/uname.cpp | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/Kernel/Syscalls/uname.cpp b/Kernel/Syscalls/uname.cpp index 6f56388396..3b2279653c 100644 --- a/Kernel/Syscalls/uname.cpp +++ b/Kernel/Syscalls/uname.cpp @@ -39,18 +39,14 @@ int Process::sys$uname(Userspace<utsname*> buf) if (g_hostname->length() + 1 > sizeof(utsname::nodename)) return -ENAMETOOLONG; - // We have already validated the entire utsname struct at this - // point, there is no need to re-validate every write to the struct. - utsname* user_buf = buf.unsafe_userspace_ptr(); - if (!copy_to_user(user_buf->sysname, "SerenityOS", 11)) - return -EFAULT; - if (!copy_to_user(user_buf->release, "1.0-dev", 8)) - return -EFAULT; - if (!copy_to_user(user_buf->version, "FIXME", 6)) - return -EFAULT; - if (!copy_to_user(user_buf->machine, "i686", 5)) - return -EFAULT; - if (!copy_to_user(user_buf->nodename, g_hostname->characters(), g_hostname->length() + 1)) + utsname buf {}; + memcpy(buf.sysname, "SerenityOS", 11); + memcpy(buf.release, "1.0-dev", 8); + memcpy(buf.version, "FIXME", 6); + memcpy(buf.machine, "i686", 5); + memcpy(buf.nodename, g_hostname->characters(), g_hostname->length() + 1); + + if (!copy_to_user(user_buf, &buf)) return -EFAULT; return 0; } |