53 lines
1.4 KiB
Rust
53 lines
1.4 KiB
Rust
// SPDX-License-Identifier: MPL-2.0
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use super::SyscallReturn;
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use crate::{
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fs::{
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file_table::{get_file_fast, FileDesc},
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fs_resolver::{FsPath, AT_FDCWD},
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utils::{InodeMode, PATH_MAX},
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},
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prelude::*,
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};
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pub fn sys_fchmod(fd: FileDesc, mode: u16, ctx: &Context) -> Result<SyscallReturn> {
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debug!("fd = {}, mode = 0o{:o}", fd, mode);
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let mut file_table = ctx.thread_local.borrow_file_table_mut();
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let file = get_file_fast!(&mut file_table, fd);
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file.set_mode(InodeMode::from_bits_truncate(mode))?;
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Ok(SyscallReturn::Return(0))
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}
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pub fn sys_chmod(path_ptr: Vaddr, mode: u16, ctx: &Context) -> Result<SyscallReturn> {
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self::sys_fchmodat(AT_FDCWD, path_ptr, mode, ctx)
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}
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// Glibc handles the `flags` argument, so we just ignore it.
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pub fn sys_fchmodat(
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dirfd: FileDesc,
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path_ptr: Vaddr,
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mode: u16,
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/* flags: u32, */
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ctx: &Context,
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) -> Result<SyscallReturn> {
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let path_name = ctx.user_space().read_cstring(path_ptr, PATH_MAX)?;
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debug!(
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"dirfd = {}, path_name = {:?}, mode = 0o{:o}",
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dirfd, path_name, mode,
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);
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let path = {
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let path_name = path_name.to_string_lossy();
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let fs_path = FsPath::from_fd_and_path(dirfd, &path_name)?;
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ctx.thread_local
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.borrow_fs()
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.resolver()
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.read()
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.lookup(&fs_path)?
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};
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path.set_mode(InodeMode::from_bits_truncate(mode))?;
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Ok(SyscallReturn::Return(0))
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}
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