From: Josselin Poiret <[email protected]>
* libguile/posix.c (do_spawn): Add error handling if
posix_spawn_file_actions_adddup2 fails.
---
Hi Ludo,
Sorry for not noticing this thread sooner! Here's my take on it, a minor
variation but that's what I'd prefer tbh.
LMKWYT,
Josselin
libguile/posix.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/libguile/posix.c b/libguile/posix.c
index 3adc743c4..2969f1f24 100644
--- a/libguile/posix.c
+++ b/libguile/posix.c
@@ -1390,12 +1390,15 @@ do_spawn (char *exec_file, char **exec_argv, char
**exec_env,
/* Move the fds out of the way, so that duplicate fds or fds equal
to 0, 1, 2 don't trample each other */
- posix_spawn_file_actions_adddup2 (&actions, in, fd_slot[0]);
- posix_spawn_file_actions_adddup2 (&actions, out, fd_slot[1]);
- posix_spawn_file_actions_adddup2 (&actions, err, fd_slot[2]);
- posix_spawn_file_actions_adddup2 (&actions, fd_slot[0], 0);
- posix_spawn_file_actions_adddup2 (&actions, fd_slot[1], 1);
- posix_spawn_file_actions_adddup2 (&actions, fd_slot[2], 2);
+ int dup2_action_from[] = {in, out, err,
+ fd_slot[0], fd_slot[1], fd_slot[2]};
+ int dup2_action_to [] = {fd_slot[0], fd_slot[1], fd_slot[2],
+ 0, 1, 2};
+
+ errno = 0;
+ for (int i = 0;i < sizeof (dup2_action_from) / sizeof (int);i++)
+ if ((errno = posix_spawn_file_actions_adddup2 (&actions,
dup2_action_from[i], dup2_action_to[i])))
+ return -1;
#ifdef HAVE_ADDCLOSEFROM
/* This function appears in glibc 2.34. It's both free from race
base-commit: fe6cc6d04ab094ea802907bdc4f728416c0e97ba
--
2.39.2
