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Kernel/LibC: Implement rename{,at}

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Bananymous
2025-11-22 23:53:52 +02:00
parent 05d59a05df
commit 4ec8f4a4bf
10 changed files with 135 additions and 60 deletions
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21
kernel/kernel/Process.cpp
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@@ -1302,6 +1302,27 @@ namespace Kernel
return 0;
}
BAN::ErrorOr<long> Process::sys_renameat(int oldfd, const char* old, int newfd, const char* _new)
{
LockGuard _(m_process_lock);
if (old != nullptr)
TRY(validate_string_access(old));
if (_new != nullptr)
TRY(validate_string_access(_new));
auto [old_parent, old_name] = TRY(find_parent_file(oldfd, old, O_WRONLY));
if (!old_parent.inode->mode().ifdir())
return BAN::Error::from_errno(ENOTDIR);
auto [new_parent, new_name] = TRY(find_parent_file(newfd, _new, O_WRONLY));
if (!new_parent.inode->mode().ifdir())
return BAN::Error::from_errno(ENOTDIR);
TRY(new_parent.inode->rename_inode(old_parent.inode, old_name, new_name));
return 0;
}
BAN::ErrorOr<long> Process::sys_unlinkat(int fd, const char* path, int flag)
{
if (flag && flag != AT_REMOVEDIR)