shadow_rs/host/syscall/handler/
stat.rs

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1use shadow_shim_helper_rs::syscall_types::ForeignPtr;
2
3use crate::cshadow;
4use crate::host::descriptor::CompatFile;
5use crate::host::syscall::handler::{SyscallContext, SyscallHandler};
6use crate::host::syscall::types::{SyscallError, SyscallResult};
7
8impl SyscallHandler {
9    log_syscall!(statx, /* rv */ std::ffi::c_int);
10    pub fn statx(ctx: &mut SyscallContext) -> SyscallResult {
11        Self::legacy_syscall(cshadow::syscallhandler_statx, ctx)
12    }
13
14    log_syscall!(
15        fstat,
16        /* rv */ std::ffi::c_int,
17        /* fd */ std::ffi::c_uint,
18        /* statbuf */ *const linux_api::stat::stat,
19    );
20    pub fn fstat(
21        ctx: &mut SyscallContext,
22        fd: std::ffi::c_uint,
23        statbuf_ptr: ForeignPtr<linux_api::stat::stat>,
24    ) -> Result<(), SyscallError> {
25        let desc_table = ctx.objs.thread.descriptor_table_borrow(ctx.objs.host);
26        let file = match Self::get_descriptor(&desc_table, fd)?.file() {
27            CompatFile::New(file) => file.clone(),
28            // if it's a legacy file, use the C syscall handler instead
29            CompatFile::Legacy(_) => {
30                drop(desc_table);
31                let rv: i32 = Self::legacy_syscall(cshadow::syscallhandler_fstat, ctx)?;
32                assert_eq!(rv, 0);
33                return Ok(());
34            }
35        };
36
37        let stat = file.inner_file().borrow().stat()?;
38
39        ctx.objs
40            .process
41            .memory_borrow_mut()
42            .write(statbuf_ptr, &stat)?;
43
44        Ok(())
45    }
46
47    log_syscall!(fstatfs, /* rv */ std::ffi::c_int);
48    pub fn fstatfs(ctx: &mut SyscallContext) -> SyscallResult {
49        Self::legacy_syscall(cshadow::syscallhandler_fstatfs, ctx)
50    }
51
52    log_syscall!(newfstatat, /* rv */ std::ffi::c_int);
53    pub fn newfstatat(ctx: &mut SyscallContext) -> SyscallResult {
54        Self::legacy_syscall(cshadow::syscallhandler_newfstatat, ctx)
55    }
56}
shadow_rs/host/syscall/handler/stat.rs

shadow_rs/host/syscall/handler/
stat.rs
