* [hurd,commited] hurd: Add support for spawn_do_closefrom
@ 2021-07-19 21:47 Samuel Thibault
0 siblings, 0 replies; only message in thread
From: Samuel Thibault @ 2021-07-19 21:47 UTC (permalink / raw)
To: libc-alpha; +Cc: commit-hurd
---
sysdeps/mach/hurd/spawn_int_def.h | 24 ++++++++++++++++++++++++
sysdeps/mach/hurd/spawni.c | 15 ++++++++++++++-
2 files changed, 38 insertions(+), 1 deletion(-)
create mode 100644 sysdeps/mach/hurd/spawn_int_def.h
diff --git a/sysdeps/mach/hurd/spawn_int_def.h b/sysdeps/mach/hurd/spawn_int_def.h
new file mode 100644
index 0000000000..d04a416986
--- /dev/null
+++ b/sysdeps/mach/hurd/spawn_int_def.h
@@ -0,0 +1,24 @@
+/* Internal definitions for posix_spawn functionality. Hurd version.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SPAWN_INT_DEF_H
+#define _SPAWN_INT_DEF_H
+
+#define __SPAWN_SUPPORT_CLOSEFROM 1
+
+#endif /* _SPAWN_INT_H */
diff --git a/sysdeps/mach/hurd/spawni.c b/sysdeps/mach/hurd/spawni.c
index e011c3b34b..060e389bbb 100644
--- a/sysdeps/mach/hurd/spawni.c
+++ b/sysdeps/mach/hurd/spawni.c
@@ -505,6 +505,19 @@ retry:
return EBADF;
}
+ /* Close file descriptors in the child. */
+ error_t do_closefrom (int lowfd)
+ {
+ while ((unsigned int) lowfd < dtablesize)
+ {
+ error_t err = do_close (lowfd);
+ if (err != 0 && err != EBADF)
+ return err;
+ lowfd++;
+ }
+ return 0;
+ }
+
/* Make sure the dtable can hold NEWFD. */
#define EXPAND_DTABLE(newfd) \
({ \
@@ -615,7 +628,7 @@ retry:
break;
case spawn_do_closefrom:
- err = EINVAL;
+ err = do_closefrom (action->action.closefrom_action.from);
break;
}
--
2.30.2
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