mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 04:50:07 +00:00
19d83270fc
It operates similar to execve and it is is already used to implement fexecve without requiring /proc to be mounted. However, different than fexecve, if the syscall is not supported by the kernel an error is returned instead of trying a fallback. Checked on x86_64-linux-gnu and powerpc64le-linux-gnu. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
/* Execute program relative to a directory file descriptor.
|
|
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/>. */
|
|
|
|
#include <errno.h>
|
|
#include <stddef.h>
|
|
#include <unistd.h>
|
|
|
|
/* Replace the current process, executing PATH relative to difrd with
|
|
arguments argv and environment envp.
|
|
argv and envp are terminated by NULL pointers. */
|
|
int
|
|
__execveat (int dirfd, const char *path, char *const argv[], char *const envp[],
|
|
int flags)
|
|
{
|
|
if (path == NULL || argv == NULL || envp == NULL)
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
__set_errno (ENOSYS);
|
|
return -1;
|
|
}
|
|
stub_warning (execveat)
|
|
|
|
weak_alias (__execveat, execveat)
|