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LibC/Kernel: Implement ttyname

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Bananymous
2024-07-30 11:41:18 +03:00
parent ca774dfeb5
commit e5bb843059
5 changed files with 25 additions and 0 deletions
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1
kernel/include/kernel/Process.h
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@@ -168,6 +168,7 @@ namespace Kernel
BAN::ErrorOr<long> sys_smo_delete(SharedMemoryObjectManager::Key);
BAN::ErrorOr<long> sys_smo_map(SharedMemoryObjectManager::Key);
BAN::ErrorOr<long> sys_ttyname(int fildes, char* storage);
BAN::ErrorOr<long> sys_isatty(int fildes);
BAN::ErrorOr<long> sys_tty_ctrl(int fildes, int command, int flags);

14
kernel/kernel/Process.cpp
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@@ -1497,6 +1497,20 @@ namespace Kernel
return m_mapped_regions.back()->vaddr();
}
BAN::ErrorOr<long> Process::sys_ttyname(int fildes, char* storage)
{
LockGuard _(m_process_lock);
TRY(validate_pointer_access(storage, TTY_NAME_MAX));
auto inode = TRY(m_open_file_descriptors.inode_of(fildes));
if (!inode->is_tty())
return BAN::Error::from_errno(ENOTTY);
auto path = TRY(m_open_file_descriptors.path_of(fildes));
ASSERT(path.size() < TTY_NAME_MAX);
strncpy(storage, path.data(), path.size());
storage[path.size()] = '\0';
return 0;
}
BAN::ErrorOr<long> Process::sys_isatty(int fildes)
{
LockGuard _(m_process_lock);