FEXECVE(3) Linux Programmer's Manual FEXECVE(3)NAMEfexecve - execute program specified via file descriptor
int fexecve(int fd, char *const argv, char *const envp);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
Since glibc 2.10:
_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
DESCRIPTIONfexecve() 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
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:
EINVAL fd is not a valid file descriptor, or argv is NULL, or envp is
ENOSYS The /proc filesystem could not be accessed.
VERSIONSfexecve() is implemented since glibc 2.3.2.
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) filesystem, so
/proc needs to be mounted and available at the time of the call.
This page is part of release 3.54 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/.
Linux 2010-09-15 FEXECVE(3)