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Launcher: restore fs::File but open just before dup2

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This commit is contained in:
Andrea Fioraldi 2021-10-14 16:10:07 +02:00
parent ab7672c8d1
commit 279fb3f213
1 changed files with 5 additions and 15 deletions
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20
libafl/src/bolts/launcher.rs
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@ -18,7 +18,7 @@ use crate::bolts::os::startable_self;
use crate::bolts::os::{dup2, fork, ForkResult};
#[cfg(all(unix, feature = "std"))]
use std::ffi::CString;
use std::{fs::File, os::unix::io::AsRawFd};
#[cfg(feature = "std")]
use std::net::SocketAddr;
@ -98,16 +98,6 @@ where
let mut handles = vec![];
println!("spawning on cores: {:?}", self.cores);
let file = self.stdout_file.map(|filename| {
let fname = CString::new(filename).unwrap();
unsafe {
libc::open(
fname.as_ptr(),
libc::O_WRONLY | libc::O_CREAT | libc::O_TRUNC,
0666,
)
}
});
// Spawn clients
for (index, (id, bind_to)) in core_ids.iter().enumerate().take(num_cores).enumerate() {
@ -128,10 +118,10 @@ where
std::thread::sleep(std::time::Duration::from_secs((index + 1) as u64));
#[cfg(feature = "std")]
if let Some(fd) = file {
dup2(fd, libc::STDOUT_FILENO)?;
dup2(fd, libc::STDERR_FILENO)?;
unsafe { libc::close(fd) };
if let Some(filename) = self.stdout_file {
let file = File::create(filename).unwrap();
dup2(file.as_raw_fd(), libc::STDOUT_FILENO)?;
dup2(file.as_raw_fd(), libc::STDERR_FILENO)?;
}
// Fuzzer client. keeps retrying the connection to broker till the broker starts
let (state, mgr) = RestartingMgr::<I, OT, S, SP, ST>::builder()