From: Rich Felker <dalias@aerifal.cx>
Date: Sat, 22 Apr 2017 22:39:40 +0000 (-0400)
Subject: implement new posix_spawn flag POSIX_SPAWN_SETSID
X-Git-Tag: v1.1.17~70
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=bb439bb17108b67f3df9c9af824d3a607b5b059d;p=oweals%2Fmusl.git

implement new posix_spawn flag POSIX_SPAWN_SETSID

this functionality has been adopted for inclusion in the next issue of
POSIX as the result of Austin Group issue #1044.

based on patch by Daurnimator.
---

diff --git a/include/spawn.h b/include/spawn.h
index 29c799ee..f3e9e23c 100644
--- a/include/spawn.h
+++ b/include/spawn.h
@@ -21,6 +21,7 @@ struct sched_param;
 #define POSIX_SPAWN_SETSIGMASK 8
 #define POSIX_SPAWN_SETSCHEDPARAM 16
 #define POSIX_SPAWN_SETSCHEDULER 32
+#define POSIX_SPAWN_SETSID 128
 
 typedef struct {
 	int __flags;
diff --git a/src/process/posix_spawn.c b/src/process/posix_spawn.c
index 0bdf71cd..ea5d2998 100644
--- a/src/process/posix_spawn.c
+++ b/src/process/posix_spawn.c
@@ -73,6 +73,10 @@ static int child(void *args_vp)
 		__libc_sigaction(i, &sa, 0);
 	}
 
+	if (attr->__flags & POSIX_SPAWN_SETSID)
+		if ((ret=__syscall(SYS_setsid)) < 0)
+			goto fail;
+
 	if (attr->__flags & POSIX_SPAWN_SETPGROUP)
 		if ((ret=__syscall(SYS_setpgid, 0, attr->__pgrp)))
 			goto fail;