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From 9e73fd8ddde844d755f3f992ca9cd7bb0502d87e Mon Sep 17 00:00:00 2001
From: Pepper Gray <hello@peppergray.xyz>
Date: Tue, 11 Aug 2026 00:03:34 +0200
Subject: [PATCH] add syscall for close_range for non-glibc targets
compiling on musl fails with error:
```
error[E0425]: cannot find function `close_range` in crate `libc`
```
use syscall for targets which do not provide a `close-range`-wrapper
Closes: #730
Signed-off-by: Pepper Gray <hello@peppergray.xyz>
---
src/main.rs | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/src/main.rs b/src/main.rs
index f3af0d6a..c20761e1 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -32,9 +32,19 @@ enum SubCommand {
Version(version::Version),
}
+#[cfg(any(all(target_os = "linux", target_env = "gnu"), target_os = "freebsd",))]
+unsafe fn close_range(first: libc::c_uint, last: libc::c_uint, flags: libc::c_int) -> libc::c_int {
+ unsafe { libc::close_range(first, last, flags) }
+}
+
+#[cfg(all(target_os = "linux", not(target_env = "gnu"),))]
+unsafe fn close_range(first: libc::c_uint, last: libc::c_uint, flags: libc::c_int) -> libc::c_int {
+ unsafe { libc::syscall(libc::SYS_close_range, first, last, flags) as libc::c_int }
+}
+
fn main() {
// Close all fds we inherited from our parent process, we only need stdio.
- let _ = unsafe { libc::close_range(3, libc::c_uint::MAX, 0) };
+ let _ = unsafe { close_range(3, libc::c_uint::MAX, 0) };
let formatter = Formatter3164 {
facility: Facility::LOG_USER,
|
