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.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" 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.\" manual page may be incorrect or out-of-date.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.
.\"
.TH FEXECVE 3 2007-07-26 "Linux" "Linux Programmer's Manual"
.SH NAME
fexecve \- execute program specified via file descriptor
.SH SYNOPSIS
.nf
.B #include <sys/time.h>
.sp
.B #define _GNU_SOURCE
.BI "int fexecve(int " fd ", char *const " argv "[], char *const " envp []);
.fi
.SH DESCRIPTION
.BR fexecve ()
performs the same task as
.BR execve (2),
with the difference that the file to be executed
is specified via a file descriptor,
.IR fd ,
rather than via a pathname.
.SH "RETURN VALUE"
A successful call to
.BR fexecve ()
never returns.
On error, the function returns, with a result value of \-1 is returned, and
.I errno
is set appropriately.
.SH ERRORS
Errors are as for
.BR execve (2),
with the following additions:
.TP
.B EINVAL
.I fd
is not a valid file descriptor, or
.I argv
is NULL, or
.I envp
is NULL.
.TP
.B ENOSYS
The
.I /proc
file system could not be accessed.
.SH VERSIONS
.BR fexecve ()
is implemented since glibc 2.3.2.
.SH "CONFORMING TO"
This function is Linux specific.
.\" As at 2006:
It is under consideration for inclusion in a future version of POSIX.1.
.SH "SEE ALSO"
.BR execve (2)
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