* [LTP] [PATCH] Fix issue when running fcntl31 and fcntl31_64 over SSH as session leader
@ 2020-05-13 12:13 Yann Sionneau
2021-02-17 16:24 ` Cyril Hrubis
0 siblings, 1 reply; 2+ messages in thread
From: Yann Sionneau @ 2020-05-13 12:13 UTC (permalink / raw)
To: ltp
If you run the test like this:
ssh localhost path/to/fcntl31
It will fail like this:
TBROK : fcntl31.c:121: setpgrp() failed: errno=EPERM(1): Operation not permitted
As man page for setpgrp says, it is indeed not permitted to change process group ID
when you are session leader (PID == SID).
Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>
---
testcases/kernel/syscalls/fcntl/fcntl31.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/testcases/kernel/syscalls/fcntl/fcntl31.c b/testcases/kernel/syscalls/fcntl/fcntl31.c
index 52b4932fa..fd284fd7e 100644
--- a/testcases/kernel/syscalls/fcntl/fcntl31.c
+++ b/testcases/kernel/syscalls/fcntl/fcntl31.c
@@ -116,9 +116,12 @@ static void setup(void)
pid = getpid();
- ret = setpgrp();
- if (ret < 0)
- tst_brkm(TBROK | TERRNO, cleanup, "setpgrp() failed");
+ /* Changing process group ID is forbidden when PID == SID i.e. we are session leader */
+ if (pid != getsid(0)) {
+ ret = setpgrp();
+ if (ret < 0)
+ tst_brkm(TBROK | TERRNO, cleanup, "setpgrp() failed");
+ }
pgrp_pid = getpgid(0);
if (pgrp_pid < 0)
tst_brkm(TBROK | TERRNO, cleanup, "getpgid() failed");
--
2.17.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [LTP] [PATCH] Fix issue when running fcntl31 and fcntl31_64 over SSH as session leader
2020-05-13 12:13 [LTP] [PATCH] Fix issue when running fcntl31 and fcntl31_64 over SSH as session leader Yann Sionneau
@ 2021-02-17 16:24 ` Cyril Hrubis
0 siblings, 0 replies; 2+ messages in thread
From: Cyril Hrubis @ 2021-02-17 16:24 UTC (permalink / raw)
To: ltp
Hi!
Applied, thanks.
--
Cyril Hrubis
chrubis@suse.cz
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-05-13 12:13 [LTP] [PATCH] Fix issue when running fcntl31 and fcntl31_64 over SSH as session leader Yann Sionneau
2021-02-17 16:24 ` Cyril Hrubis
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