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SuSE 11.3 - man page for fexecve (suse section 3)

FEXECVE(3)			    Linux Programmer's Manual			       FEXECVE(3)

NAME
       fexecve - execute program specified via file descriptor

SYNOPSIS
       #define _GNU_SOURCE
       #include <unistd.h>

       int fexecve(int fd, char *const argv[], char *const envp[]);

DESCRIPTION
       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.

RETURN VALUE
       A successful call to fexecve() never returns.  On error,  the  function	returns,  with	a
       result value of -1, and errno is set appropriately.

ERRORS
       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 NULL.

       ENOSYS The /proc file system could not be accessed.

VERSIONS
       fexecve() is implemented since glibc 2.3.2.

CONFORMING TO
       POSIX.1-2008.  This function is not specified in POSIX.1-2001, and is not widely available
       on other systems.

NOTES
       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.

SEE ALSO
       execve(2)

COLOPHON
       This  page  is  part of release 3.25 of the Linux man-pages project.  A description of the
       project,  and  information  about  reporting  bugs,  can  be  found   at   http://www.ker-
       nel.org/doc/man-pages/.

Linux					    2009-02-04				       FEXECVE(3)


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