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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:06:31 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:06:31 +0000
commit2ff14448863ac1a1dd9533461708e29aae170c2d (patch)
tree85b9fea2bbfe3f06473cfa381eed11f273b57c5c /library/std/src/os/fd/owned.rs
parentAdding debian version 1.64.0+dfsg1-1. (diff)
downloadrustc-2ff14448863ac1a1dd9533461708e29aae170c2d.tar.xz
rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.zip
Adding debian version 1.65.0+dfsg1-2.debian/1.65.0+dfsg1-2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/std/src/os/fd/owned.rs')
-rw-r--r--library/std/src/os/fd/owned.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/library/std/src/os/fd/owned.rs b/library/std/src/os/fd/owned.rs
index a463bc41d..71e33fb9e 100644
--- a/library/std/src/os/fd/owned.rs
+++ b/library/std/src/os/fd/owned.rs
@@ -104,7 +104,8 @@ impl BorrowedFd<'_> {
#[cfg(target_os = "espidf")]
let cmd = libc::F_DUPFD;
- let fd = cvt(unsafe { libc::fcntl(self.as_raw_fd(), cmd, 0) })?;
+ // Avoid using file descriptors below 3 as they are used for stdio
+ let fd = cvt(unsafe { libc::fcntl(self.as_raw_fd(), cmd, 3) })?;
Ok(unsafe { OwnedFd::from_raw_fd(fd) })
}