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hurd: Add support for spawn_do_closefrom

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This commit is contained in:
Samuel Thibault 2021-07-19 21:45:29 +00:00
parent 469761eac8
commit ff417d4017
2 changed files with 38 additions and 1 deletions
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24
sysdeps/mach/hurd/spawn_int_def.h Normal file
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@ -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 */

15
sysdeps/mach/hurd/spawni.c
View File

@ -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;
}