From: Aleksei Bavshin <a.bavshin@nginx.com>
Date: Thu, 1 Oct 2026 19:49:15 +0000 (-0700)
Subject: Core: fixed ioctl(FIOASYNC) argument type
X-Git-Tag: release-1.31.8~11
X-Git-Url: https://git.kaiwu.me/?a=commitdiff_plain;h=c44e4c6b2d401cddeb0788a858d5658c4a681578;p=nginx.git

Core: fixed ioctl(FIOASYNC) argument type

The documented argument type for this operation is an integer boolean.
Passing 1 as u_long makes the call silently fail on 64-bit big-endian
platforms, as the kernel receives only high 4 bytes set to 0.
---

diff --git a/src/os/unix/ngx_process.c b/src/os/unix/ngx_process.c
index 15680237a..082de27a0 100644
--- a/src/os/unix/ngx_process.c
+++ b/src/os/unix/ngx_process.c
@@ -87,7 +87,7 @@ ngx_pid_t
 ngx_spawn_process(ngx_cycle_t *cycle, ngx_spawn_proc_pt proc, void *data,
     char *name, ngx_int_t respawn)
 {
-    u_long     on;
+    int        on;
     ngx_pid_t  pid;
     ngx_int_t  s;