fexecve — execute program specified via file descriptor
#define _GNU_SOURCE #include <unistd.h>
int fexecve( |
int fd, |
| char *const argv[], | |
char *const envp[]); |
fexecve() performs the same
task as execve(2), with the
difference that the file to be executed is specified via a
file descriptor, fd,
rather than via a pathname. The file descriptor fd must be opened read-only,
and the caller must have permission to execute the file that
it refers to.
A successful call to fexecve() never returns. On error, the
function returns, with a result value of −1, and
errno is set appropriately.
Errors are as for execve(2), with the following additions:
fd is not a
valid file descriptor, or argv is NULL, or
envp is
NULL.
The /proc file system
could not be accessed.
POSIX.1-2008. This function is not specified in POSIX.1-2001, and is not widely available on other systems.
On Linux, fexecve() is
implemented using the proc(5) file system, so
/proc needs to be mounted and
available at the time of the call.
This page is part of release 3.24 of the Linux man-pages project. A
description of the project, and information about reporting
bugs, can be found at
http://www.kernel.org/doc/man-pages/.
|
Copyright (c) 2006, Michael Kerrisk Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the Linux kernel and libraries are constantly changing, this manual page may be incorrect or out-of-date. The author(s) assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. The author(s) may not have taken the same level of care in the production of this manual, which is licensed free of charge, as they might when working professionally. Formatted or processed versions of this manual, if unaccompanied by the source, must acknowledge the copyright and authors of this work. |