fergalmoran/ladybird
1
0
Fork 0
mirror of https://github.com/fergalmoran/ladybird.git synced 2026-01-08 17:47:18 +00:00
Code Issues Packages Projects Releases Wiki Activity

Kernel: Have the open() syscall take an explicit path length parameter.

Browse Source 
Instead of computing the path length inside the syscall handler, let the
caller do that work. This allows us to implement to new variants of open()
and creat(), called open_with_path_length() and creat_with_path_length().
These are suitable for use with e.g StringView.
This commit is contained in:
Andreas Kling
2019-07-08 20:01:49 +02:00
parent fc4022d173
commit c110cf193d
9 changed files with 40 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
Kernel/Process.cpp
View File

@@ -1127,12 +1127,18 @@ int Process::number_of_open_file_descriptors() const
return count;
}
int Process::sys$open(const char* path, int options, mode_t mode)
int Process::sys$open(const Syscall::SC_open_params* params)
{
if (!validate_read_typed(params))
return -EFAULT;
auto* path = params->path;
auto path_length = params->path_length;
auto options = params->options;
auto mode = params->mode;
#ifdef DEBUG_IO
dbgprintf("%s(%u) sys$open(\"%s\")\n", name().characters(), pid(), path);
#endif
if (!validate_read_str(path))
if (!validate_read(path, path_length))
return -EFAULT;
int fd = alloc_fd();
if (fd < 0)